revert module name

- IP detection: Cloudflare IPv6, ULA IPv6, proxy header chain, offline GeoIP DB
- Database: add SQLite (pure Go, no CGo) and MSSQL backends
- API: add JSON result sharing endpoint and ID obfuscation
- Frontend: add modern CSS design, design switcher, favicon
- Compatibility: ?cors parameter support, human-friendly distance rounding
- Update Go to 1.21, add modernc.org/sqlite and maxminddb deps

.github/workflows/arm-registry.yml

@@ -0,0 +1,47 @@
+name: Create and publish a Docker image with ARM
+on:
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v3
+        env:
+          CI: false
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/docker-publish.yml

@@ -0,0 +1,64 @@
+name: Docker
+on:
+  push:
+    branches: [ "master" ]
+    # Publish semver tags as releases.
+    tags: [ 'v*.*.*' ]
+  pull_request:
+    branches: [ "master" ]
+
+env:
+  # Use docker.io for Docker Hub if empty
+  REGISTRY: ghcr.io
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}
+  PLATFORMS: linux/amd64,linux/arm64,linux/arm/v7,linux/386
+
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      # Login against a Docker registry except on PR
+      # https://github.com/docker/login-action
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      # Build and push Docker image with Buildx (don't push on PR)
+      # https://github.com/docker/build-push-action
+      - name: Build and push Docker image
+        id: build-and-push
+        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: ${{ env.PLATFORMS }}

.goreleaser.yml

@@ -1,10 +1,11 @@
+version: 2
 project_name: 'speedtest-go'
 #dist: ./out
 before:
   hooks:
     - go mod download
 builds:
-- main: ./main.go
+  - main: ./main.go
     id: speedtest-backend
     binary: speedtest-backend
     env:
@@ -16,27 +17,37 @@ builds:
     goos:
       - windows
       - linux
-    - darwin
     goarch:
       - 386
       - amd64
       - arm
       - arm64
-    - mips
-    - mipsle
     goarm:
       - 5
       - 6
       - 7
-  gomips:
-    - hardfloat
-    - softfloat
     ignore:
-    - goos: darwin
-      goarch: 386
+      - goos: windows
+        goarch: arm
+      - goos: windows
+        goarch: arm64
     hooks:
       post: upx -9 "{{ .Path }}"
-- main: ./main.go
+  - main: ./main.go
+    id: speedtest-backend-darwin
+    binary: speedtest-backend
+    env:
+      - CGO_ENABLED=0
+    flags:
+      - -trimpath
+    ldflags:
+      - -w -s
+    goos:
+      - darwin
+    goarch:
+      - amd64
+      - arm64
+  - main: ./main.go
     id: speedtest-backend-freebsd
     binary: speedtest-backend
     env:
@@ -48,21 +59,10 @@ builds:
     goos:
       - freebsd
     goarch:
-    - 386
       - amd64
-    - arm
       - arm64
-    - mips
-    - mipsle
-  goarm:
-    - 5
-    - 6
-    - 7
-  gomips:
-    - hardfloat
-    - softfloat
-- main: ./main.go
-  id: speedtest-backend-noupx
+  - main: ./main.go
+    id: speedtest-backend-noupx-windows-arm64
     binary: speedtest-backend
     env:
       - CGO_ENABLED=0
@@ -71,26 +71,26 @@ builds:
     ldflags:
       - -w -s
     goos:
-    - linux
+      - windows
     goarch:
-    - mips64
-    - mips64le
-  gomips:
-    - hardfloat
-    - softfloat
+      - arm
+      - arm64
+    goarm:
+      - 5
+      - 6
+      - 7
 archives:
   - format_overrides:
       - goos: windows
-        format: zip
+        formats: zip
     files:
       - README.md
       - LICENSE
-      - assets/*
       - settings.toml
 checksum:
   name_template: 'checksums.txt'
 changelog:
-  skip: false
+  disable: false
   sort: asc
 release:
   github:

Dockerfile

@@ -0,0 +1,19 @@
+FROM --platform=$BUILDPLATFORM golang:1.18-alpine AS build_base
+RUN apk add --no-cache git gcc ca-certificates libc-dev
+WORKDIR /build
+COPY go.mod go.sum ./
+RUN go mod download
+COPY ./ ./
+
+ENV CGO_ENABLED=0
+ARG TARGETOS TARGETARCH
+RUN GOOS=$TARGETOS GOARCH=$TARGETARCH go build -ldflags "-w -s" -trimpath -buildvcs=false -o speedtest .
+
+FROM scratch
+WORKDIR /app
+COPY --from=build_base /build/speedtest ./
+COPY settings.toml ./
+
+EXPOSE 8989
+
+CMD ["./speedtest"]

README.md

@@ -7,7 +7,7 @@ No Flash, No Java, No WebSocket, No Bullshit.
 This is a very lightweight speed test implemented in JavaScript, using XMLHttpRequest and Web Workers.
 
 ## Try it
-[Take a speed test](https://speedtest.fdossena.com) (PHP implementation)
+[Take a speed test](https://speedtest.zzz.cat)
 
 ## Compatibility
 All modern browsers are supported: IE11, latest Edge, latest Chrome, latest Firefox, latest Safari.
@@ -20,43 +20,54 @@ Works with mobile versions too.
 * Jitter
 * IP Address, ISP, distance from server (optional)
 * Telemetry (optional)
-* Results sharing (optional)
+* Results sharing via PNG image and JSON API (optional)
 * Multiple Points of Test (optional)
 * Compatible with PHP frontend predefined endpoints (with `.php` suffixes)
+* Supports [Proxy Protocol](https://www.haproxy.org/download/2.3/doc/proxy-protocol.txt)
+* Modern and classic UI designs with switchable interface
+* ID obfuscation for test result privacy (optional)
 
-![Screenshot](https://speedtest.fdossena.com/mpot_v6.gif)
+### IP Detection
+* Client IP detection with proxy header chain support (X-Forwarded-For, X-Real-IP, Client-IP, CF-Connecting-IPv6)
+* ISP and location detection via ipinfo.io API with offline GeoIP database fallback (MaxMind .mmdb)
+* Private/special IP detection (including ULA IPv6 and CGNAT)
+* Distance calculation with human-friendly rounding
+
+![Screencast](https://speedtest.zzz.cat/speedtest.webp)
 
 ## Server requirements
-* Any [Go supported platforms](https://github.com/golang/go/wiki/MinimumRequirements)
-* BoltDB, PostgreSQL or MySQL database to store test results (optional)
+* Any [Go supported platforms](https://github.com/golang/go/wiki/MinimumRequirements) (Go 1.21+)
+* SQLite, BoltDB, PostgreSQL, MySQL or MSSQL database to store test results (optional)
+* No external dependencies — single binary deployment
 * A fast! Internet connection
 
 ## Installation
 
-You need Go 1.13+ to compile the binary. If you have an older version of Go and don't want to install the tarball
-manually, you can install newer version of Go into your GOPATH:
+### Install using prebuilt binaries
 
-0. Install Go 1.14
+1. Download the appropriate binary file from the [releases](https://github.com/librespeed/speedtest-go/releases/) page.
+2. Unzip the archive.
+3. Make changes to the configuration.
+4. Run the binary.
+5. Optional: Setup a systemd service file.
 
-   ```
-   $ go get golang.org/dl/go1.14.2
-   # Assuming your GOPATH is default (~/go), Go 1.14.2 will be installed in ~/go/bin
-   $ ~/go/bin/go1.14.2 version
-   go version go1.14.2 linux/amd64
-   ```
+### Use Ansible for automatic installation
+
+You can use an Ansible role for installing speedtest-go easily. You can find the role on the [Ansible galaxy](https://galaxy.ansible.com/flymia/ansible_speedtest_go). There is a [separate repository](https://github.com/flymia/ansible-speedtest_go) for documentation about the Ansible role.
+### Compile from source
+
+You need Go 1.21+ to compile the binary.
 
 1. Clone this repository:
 
     ```
-    $ git clone github.com/librespeed/speedtest-go
-    # Switch to the Go branch
-    $ git checkout go
+    $ git clone https://github.com/librespeed/speedtest-go
     ```
 
 2. Build
     ```
     # Change current working directory to the repository
-    $ cd speedtest
+    $ cd speedtest-go
     # Compile
     $ go build -ldflags "-w -s" -trimpath -o speedtest main.go
     ```
@@ -64,19 +75,21 @@ manually, you can install newer version of Go into your GOPATH:
 3. Copy the `assets` directory, `settings.toml` file along with the compiled `speedtest` binary into a single directory
 
 4. If you have telemetry enabled,
-    - For PostgreSQL/MySQL, create database and import the corresponding `.sql` file under `database/{postgresql,mysql}`
+    - For PostgreSQL/MySQL/MSSQL, create database and import the corresponding `.sql` file under `database/{postgresql,mysql,mssql}`
 
         ```
         # assume you have already created a database named `speedtest` under current user
         $ psql speedtest < database/postgresql/telemetry_postgresql.sql
         ```
 
-    - For embedded BoltDB, make sure to define the `database_file` path in `settings.toml`:
+    - For embedded databases (BoltDB, SQLite), make sure to define the `database_file` path in `settings.toml`:
 
         ```
         database_file="speedtest.db"
         ```
 
+    - SQLite supports WAL mode for better concurrent performance and works out of the box with no additional dependencies.
+
 5. Put `assets` folder under the same directory as your compiled binary.
     - Make sure the font files and JavaScripts are in the `assets` directory
     - You can have multiple HTML pages under `assets` directory. They can be access directly under the server root
@@ -90,6 +103,8 @@ manually, you can install newer version of Go into your GOPATH:
     bind_address="127.0.0.1"
     # backend listen port, default is 8989
     listen_port=8989
+    # proxy protocol port, use 0 to disable
+    proxyprotocol_port=0
     # Server location, use zeroes to fetch from API automatically
     server_lat=0
     server_lng=0
@@ -97,6 +112,7 @@ manually, you can install newer version of Go into your GOPATH:
     ipinfo_api_key=""
    
     # assets directory path, defaults to `assets` in the same directory
+    # if the path cannot be found, embedded default assets will be used
     assets_path="./assets"
 
     # password for logging into statistics page, change this to enable stats page
@@ -104,24 +120,40 @@ manually, you can install newer version of Go into your GOPATH:
     # redact IP addresses
     redact_ip_addresses=false
 
-    # database type for statistics data, currently supports: bolt, mysql, postgresql
+    # database type for statistics data, currently supports: none, memory, bolt, sqlite, mysql, postgresql, mssql
+    # if none is specified, no telemetry/stats will be recorded, and no result PNG will be generated
     database_type="postgresql"
     database_hostname="localhost"
     database_name="speedtest"
     database_username="postgres"
     database_password=""
 
-    # if you use `bolt` as database, set database_file to database file location
+    # database port (optional, defaults to driver default; only used by mssql)
+    database_port=""
+
+    # if you use `bolt` or `sqlite` as database, set database_file to database file location
     database_file="speedtest.db"
+
+    # GeoIP offline database (.mmdb format) for ISP detection fallback (optional)
+    # Leave empty to disable.
+    # geoip_database_file="country_asn.mmdb"
+
+    # TLS and HTTP/2 settings. TLS is required for HTTP/2
+    enable_tls=false
+    enable_http2=false
+
+    # if you use HTTP/2 or TLS, you need to prepare certificates and private keys
+    # tls_cert_file="cert.pem"
+    # tls_key_file="privkey.pem"
     ```
 
 ## Differences between Go and PHP implementation and caveats
 
-- Since there is no CGo-free SQLite implementation available, I've opted to use [BoltDB](https://github.com/etcd-io/bbolt)
-  instead, as an embedded database alternative to SQLite
-- Test IDs are generated ULID, there is no option to change them to plain ID
-- You can use the same HTML template from the PHP implementation
-- Server location can be defined in settings
+- Test IDs are generated as ULID (Universally Unique Lexicographically Sortable Identifier), unlike the PHP version's auto-increment integer IDs
+- ID obfuscation is available as an optional feature — when enabled, ULIDs are obfuscated with a per-instance salt
+- The Go version ships with two built-in UI designs (classic gauges and modern CSS), switchable via `?design=new` URL parameter
+- The modern design (`index-modern.html`) supports multi-server configuration via `server-list.json` placed alongside the binary
+- Server location can be defined in settings or auto-detected at startup
 - There might be a slight delay on program start if your Internet connection is slow. That's because the program will
 attempt to fetch your current network's ISP info for distance calculation between your network and the speed test client's.
 This action will only be taken once, and cached for later use.

assets/index.html

@@ -1,365 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, user-scalable=no" />
-<meta charset="UTF-8" />
-<link rel="shortcut icon" href="../../favicon.ico">
-<script type="text/javascript" src="speedtest.js"></script>
-<script type="text/javascript">
-function I(i){return document.getElementById(i);}
-//INITIALIZE SPEEDTEST
-var s=new Speedtest(); //create speedtest object
-s.setParameter("telemetry_level","basic"); //enable telemetry
-s.setParameter("url_telemetry", "results/telemetry");
-var server = {
-	name: "demo",
-	server:window.location.protocol + "//" + window.location.host,
-	dlURL:"garbage",
-	ulURL:"empty",
-	pingURL:"empty",
-	getIpURL:"getIP",
-};
-s.setSelectedServer(server);
-
-var meterBk=/Trident.*rv:(\d+\.\d+)/i.test(navigator.userAgent)?"#EAEAEA":"#80808040";
-var dlColor="#6060AA",
-	ulColor="#616161";
-var progColor=meterBk;
-
-//CODE FOR GAUGES
-function drawMeter(c,amount,bk,fg,progress,prog){
-	var ctx=c.getContext("2d");
-	var dp=window.devicePixelRatio||1;
-	var cw=c.clientWidth*dp, ch=c.clientHeight*dp;
-	var sizScale=ch*0.0055;
-	if(c.width==cw&&c.height==ch){
-		ctx.clearRect(0,0,cw,ch);
-	}else{
-		c.width=cw;
-		c.height=ch;
-	}
-	ctx.beginPath();
-	ctx.strokeStyle=bk;
-	ctx.lineWidth=12*sizScale;
-	ctx.arc(c.width/2,c.height-58*sizScale,c.height/1.8-ctx.lineWidth,-Math.PI*1.1,Math.PI*0.1);
-	ctx.stroke();
-	ctx.beginPath();
-	ctx.strokeStyle=fg;
-	ctx.lineWidth=12*sizScale;
-	ctx.arc(c.width/2,c.height-58*sizScale,c.height/1.8-ctx.lineWidth,-Math.PI*1.1,amount*Math.PI*1.2-Math.PI*1.1);
-	ctx.stroke();
-	if(typeof progress !== "undefined"){
-		ctx.fillStyle=prog;
-		ctx.fillRect(c.width*0.3,c.height-16*sizScale,c.width*0.4*progress,4*sizScale);
-	}
-}
-function mbpsToAmount(s){
-	return 1-(1/(Math.pow(1.3,Math.sqrt(s))));
-}
-function format(d){
-    d=Number(d);
-    if(d<10) return d.toFixed(2);
-    if(d<100) return d.toFixed(1);
-    return d.toFixed(0);
-}
-
-//UI CODE
-var uiData=null;
-function startStop(){
-    if(s.getState()==3){
-		//speedtest is running, abort
-		s.abort();
-		data=null;
-		I("startStopBtn").className="";
-		initUI();
-	}else{
-		//test is not running, begin
-		I("startStopBtn").className="running";
-		I("shareArea").style.display="none";
-		s.onupdate=function(data){
-            uiData=data;
-		};
-		s.onend=function(aborted){
-            I("startStopBtn").className="";
-            updateUI(true);
-            if(!aborted){
-                //if testId is present, show sharing panel, otherwise do nothing
-                try{
-                    var testId=uiData.testId;
-                    if(testId!=null){
-                        var shareURL=window.location.href.substring(0,window.location.href.lastIndexOf("/"))+"/results/?id="+testId;
-                        I("resultsImg").src=shareURL;
-                        I("resultsURL").value=shareURL;
-                        I("testId").innerHTML=testId;
-                        I("shareArea").style.display="";
-                    }
-                }catch(e){}
-            }
-		};
-		s.start();
-	}
-}
-//this function reads the data sent back by the test and updates the UI
-function updateUI(forced){
-	if(!forced&&s.getState()!=3) return;
-	if(uiData==null) return;
-	var status=uiData.testState;
-	I("ip").textContent=uiData.clientIp;
-	I("dlText").textContent=(status==1&&uiData.dlStatus==0)?"...":format(uiData.dlStatus);
-	drawMeter(I("dlMeter"),mbpsToAmount(Number(uiData.dlStatus*(status==1?oscillate():1))),meterBk,dlColor,Number(uiData.dlProgress),progColor);
-	I("ulText").textContent=(status==3&&uiData.ulStatus==0)?"...":format(uiData.ulStatus);
-	drawMeter(I("ulMeter"),mbpsToAmount(Number(uiData.ulStatus*(status==3?oscillate():1))),meterBk,ulColor,Number(uiData.ulProgress),progColor);
-	I("pingText").textContent=format(uiData.pingStatus);
-	I("jitText").textContent=format(uiData.jitterStatus);
-}
-function oscillate(){
-	return 1+0.02*Math.sin(Date.now()/100);
-}
-//update the UI every frame
-window.requestAnimationFrame=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame||(function(callback,element){setTimeout(callback,1000/60);});
-function frame(){
-	requestAnimationFrame(frame);
-	updateUI();
-}
-frame(); //start frame loop
-//function to (re)initialize UI
-function initUI(){
-	drawMeter(I("dlMeter"),0,meterBk,dlColor,0);
-	drawMeter(I("ulMeter"),0,meterBk,ulColor,0);
-	I("dlText").textContent="";
-	I("ulText").textContent="";
-	I("pingText").textContent="";
-	I("jitText").textContent="";
-	I("ip").textContent="";
-}
-</script>
-<style type="text/css">
-	html,body{
-		border:none; padding:0; margin:0;
-		background:#FFFFFF;
-		color:#202020;
-	}
-	body{
-		text-align:center;
-		font-family:"Roboto",sans-serif;
-	}
-	h1{
-		color:#404040;
-	}
-	#startStopBtn{
-		display:inline-block;
-		margin:0 auto;
-		color:#6060AA;
-		background-color:rgba(0,0,0,0);
-		border:0.15em solid #6060FF;
-		border-radius:0.3em;
-		transition:all 0.3s;
-		box-sizing:border-box;
-		width:8em; height:3em;
-		line-height:2.7em;
-		cursor:pointer;
-		box-shadow: 0 0 0 rgba(0,0,0,0.1), inset 0 0 0 rgba(0,0,0,0.1);
-	}
-	#startStopBtn:hover{
-		box-shadow: 0 0 2em rgba(0,0,0,0.1), inset 0 0 1em rgba(0,0,0,0.1);
-	}
-	#startStopBtn.running{
-		background-color:#FF3030;
-		border-color:#FF6060;
-		color:#FFFFFF;
-	}
-	#startStopBtn:before{
-		content:"Start";
-	}
-	#startStopBtn.running:before{
-		content:"Abort";
-	}
-	#test{
-		margin-top:2em;
-		margin-bottom:12em;
-	}
-	div.testArea{
-		display:inline-block;
-		width:16em;
-		height:12.5em;
-		position:relative;
-		box-sizing:border-box;
-	}
-	div.testArea2{
-		display:inline-block;
-		width:14em;
-		height:7em;
-		position:relative;
-		box-sizing:border-box;
-		text-align:center;
-	}
-	div.testArea div.testName{
-		position:absolute;
-		top:0.1em; left:0;
-		width:100%;
-		font-size:1.4em;
-		z-index:9;
-	}
-	div.testArea2 div.testName{
-        display:block;
-        text-align:center;
-        font-size:1.4em;
-	}
-	div.testArea div.meterText{
-		position:absolute;
-		bottom:1.55em; left:0;
-		width:100%;
-		font-size:2.5em;
-		z-index:9;
-	}
-	div.testArea2 div.meterText{
-        display:inline-block;
-        font-size:2.5em;
-	}
-	div.meterText:empty:before{
-		content:"0.00";
-	}
-	div.testArea div.unit{
-		position:absolute;
-		bottom:2em; left:0;
-		width:100%;
-		z-index:9;
-	}
-	div.testArea2 div.unit{
-		display:inline-block;
-	}
-	div.testArea canvas{
-		position:absolute;
-		top:0; left:0; width:100%; height:100%;
-		z-index:1;
-	}
-	div.testGroup{
-		display:block;
-        margin: 0 auto;
-	}
-	#shareArea{
-		width:95%;
-		max-width:40em;
-		margin:0 auto;
-		margin-top:2em;
-	}
-	#shareArea > *{
-		display:block;
-		width:100%;
-		height:auto;
-		margin: 0.25em 0;
-	}
-	#privacyPolicy{
-        position:fixed;
-        top:2em;
-        bottom:2em;
-        left:2em;
-        right:2em;
-        overflow-y:auto;
-        width:auto;
-        height:auto;
-        box-shadow:0 0 3em 1em #000000;
-        z-index:999999;
-        text-align:left;
-        background-color:#FFFFFF;
-        padding:1em;
-	}
-	a.privacy{
-        text-align:center;
-        font-size:0.8em;
-        color:#808080;
-        display:block;
-	}
-	@media all and (max-width:40em){
-		body{
-			font-size:0.8em;
-		}
-	}
-</style>
-<title>LibreSpeed Example</title>
-</head>
-<body>
-<h1>LibreSpeed Example</h1>
-<div id="testWrapper">
-	<div id="startStopBtn" onclick="startStop()"></div><br/>
-	<a class="privacy" href="#" onclick="I('privacyPolicy').style.display=''">Privacy</a>
-	<div id="test">
-		<div class="testGroup">
-			<div class="testArea2">
-				<div class="testName">Ping</div>
-				<div id="pingText" class="meterText" style="color:#AA6060"></div>
-				<div class="unit">ms</div>
-			</div>
-			<div class="testArea2">
-				<div class="testName">Jitter</div>
-				<div id="jitText" class="meterText" style="color:#AA6060"></div>
-				<div class="unit">ms</div>
-			</div>
-		</div>
-		<div class="testGroup">
-			<div class="testArea">
-				<div class="testName">Download</div>
-				<canvas id="dlMeter" class="meter"></canvas>
-				<div id="dlText" class="meterText"></div>
-				<div class="unit">Mbit/s</div>
-			</div>
-			<div class="testArea">
-				<div class="testName">Upload</div>
-				<canvas id="ulMeter" class="meter"></canvas>
-				<div id="ulText" class="meterText"></div>
-				<div class="unit">Mbit/s</div>
-			</div>
-		</div>
-		<div id="ipArea">
-			<span id="ip"></span>
-		</div>
-		<div id="shareArea" style="display:none">
-			<h3>Share results</h3>
-			<p>Test ID: <span id="testId"></span></p>
-			<input type="text" value="" id="resultsURL" readonly="readonly" onclick="this.select();this.focus();this.select();document.execCommand('copy');alert('Link copied')"/>
-			<img src="" id="resultsImg" />
-		</div>
-	</div>
-	<a href="https://github.com/librespeed/speedtest">Source code</a>
-</div>
-<div id="privacyPolicy" style="display:none">
-    <h2>Privacy Policy</h2>
-    <p>This HTML5 Speedtest server is configured with telemetry enabled.</p>
-    <h4>What data we collect</h4>
-    <p>
-        At the end of the test, the following data is collected and stored:
-        <ul>
-            <li>Test ID</li>
-            <li>Time of testing</li>
-            <li>Test results (download and upload speed, ping and jitter)</li>
-            <li>IP address</li>
-            <li>ISP information</li>
-            <li>Approximate location (inferred from IP address, not GPS)</li>
-            <li>User agent and browser locale</li>
-            <li>Test log (contains no personal information)</li>
-        </ul>
-    </p>
-    <h4>How we use the data</h4>
-    <p>
-        Data collected through this service is used to:
-        <ul>
-            <li>Allow sharing of test results (sharable image for forums, etc.)</li>
-            <li>To improve the service offered to you (for instance, to detect problems on our side)</li>
-        </ul>
-        No personal information is disclosed to third parties.
-    </p>
-    <h4>Your consent</h4>
-    <p>
-        By starting the test, you consent to the terms of this privacy policy.
-    </p>
-    <h4>Data removal</h4>
-    <p>
-        If you want to have your information deleted, you need to provide either the ID of the test or your IP address. This is the only way to identify your data, without this information we won't be able to comply with your request.<br/><br/>
-        Contact this email address for all deletion requests: <a href="mailto:PUT@YOUR_EMAIL.HERE">TO BE FILLED BY DEVELOPER</a>.
-    </p>
-    <br/><br/>
-    <a class="privacy" href="#" onclick="I('privacyPolicy').style.display='none'">Close</a><br/>
-</div>
-<script type="text/javascript">setTimeout(function(){initUI()},100);</script>
-</body>
-</html>

config/config.go

@@ -1,8 +1,6 @@
 package config
 
 import (
-	"os"
-
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/viper"
 )
@@ -10,12 +8,15 @@ import (
 type Config struct {
 	BindAddress       string  `mapstructure:"bind_address"`
 	Port              string  `mapstructure:"listen_port"`
+	BaseURL           string  `mapstructure:"url_base"`
+	ProxyProtocolPort string  `mapstructure:"proxyprotocol_port"`
 	ServerLat         float64 `mapstructure:"server_lat"`
 	ServerLng         float64 `mapstructure:"server_lng"`
 	IPInfoAPIKey      string  `mapstructure:"ipinfo_api_key"`
 
 	StatsPassword       string `mapstructure:"statistics_password"`
 	RedactIP            bool   `mapstructure:"redact_ip_addresses"`
+	EnableIDObfuscation bool   `mapstructure:"enable_id_obfuscation"`
 
 	AssetsPath string `mapstructure:"assets_path"`
 
@@ -26,62 +27,49 @@ type Config struct {
 	DatabasePassword string `mapstructure:"database_password"`
 
 	DatabaseFile string `mapstructure:"database_file"`
+	DatabasePort string `mapstructure:"database_port"`
+
+	GeoIPDatabaseFile string `mapstructure:"geoip_database_file"`
+
+	EnableHTTP2 bool   `mapstructure:"enable_http2"`
+	EnableTLS   bool   `mapstructure:"enable_tls"`
+	TLSCertFile string `mapstructure:"tls_cert_file"`
+	TLSKeyFile  string `mapstructure:"tls_key_file"`
 }
 
 var (
+	configFile   string
 	loadedConfig *Config = nil
 )
 
 func init() {
 	viper.SetDefault("listen_port", "8989")
+	viper.SetDefault("url_base", "")
+	viper.SetDefault("proxyprotocol_port", "0")
 	viper.SetDefault("download_chunks", 4)
 	viper.SetDefault("distance_unit", "K")
 	viper.SetDefault("enable_cors", false)
 	viper.SetDefault("statistics_password", "PASSWORD")
 	viper.SetDefault("redact_ip_addresses", false)
-	viper.SetDefault("assets_path", "./assets")
 	viper.SetDefault("database_type", "postgresql")
 	viper.SetDefault("database_hostname", "localhost")
 	viper.SetDefault("database_name", "speedtest")
 	viper.SetDefault("database_username", "postgres")
+	viper.SetDefault("enable_tls", false)
+	viper.SetDefault("enable_http2", false)
 
 	viper.SetConfigName("settings")
 	viper.AddConfigPath(".")
 }
 
-func Load() Config {
-	var conf Config
-	if err := viper.ReadInConfig(); err != nil {
-		if _, ok := err.(viper.ConfigFileNotFoundError); ok {
-			log.Warnf("No config file found in search paths, using default values")
-		} else {
-			log.Fatalf("Error reading config: %s", err)
-		}
-	}
-
-	if err := viper.Unmarshal(&conf); err != nil {
-		log.Fatalf("Error parsing config: %s", err)
-	}
-
-	loadedConfig = &conf
-
-	return conf
-}
-
-func LoadFile(configFile string) Config {
+func Load(configPath string) Config {
 	var conf Config
 
-	f, err := os.OpenFile(configFile, os.O_RDONLY, 0444)
-
-	if err != nil {
-		log.Fatalf("Failed to open config file: %s", err)
-	}
-
-	defer f.Close()
-
-	if err := viper.ReadConfig(f); err != nil {
-		log.Fatalf("Error reading config: %s", err)
-	}
+	configFile = configPath
+	viper.SetConfigFile(configPath)
+	viper.SetEnvPrefix("speedtest")
+	viper.AutomaticEnv()
+	viper.ReadInConfig()
 
 	if err := viper.Unmarshal(&conf); err != nil {
 		log.Fatalf("Error parsing config: %s", err)
@@ -94,7 +82,7 @@ func LoadFile(configFile string) Config {
 
 func LoadedConfig() *Config {
 	if loadedConfig == nil {
-		Load()
+		Load(configFile)
 	}
 	return loadedConfig
 }

database/bolt/bolt.go

@@ -5,12 +5,10 @@ import (
 	"errors"
 	"time"
 
-	"go.etcd.io/bbolt"
+	"github.com/librespeed/speedtest-go/database/schema"
 
-	"github.com/librespeed/speedtest/database/schema"
-
-	_ "github.com/go-sql-driver/mysql"
 	log "github.com/sirupsen/logrus"
+	"go.etcd.io/bbolt"
 )
 
 const (

database/database.go

@@ -1,11 +1,17 @@
 package database
 
 import (
-	"github.com/librespeed/speedtest/config"
-	"github.com/librespeed/speedtest/database/bolt"
-	"github.com/librespeed/speedtest/database/mysql"
-	"github.com/librespeed/speedtest/database/postgresql"
-	"github.com/librespeed/speedtest/database/schema"
+	"github.com/librespeed/speedtest-go/config"
+	"github.com/librespeed/speedtest-go/database/bolt"
+	"github.com/librespeed/speedtest-go/database/memory"
+	"github.com/librespeed/speedtest-go/database/mssql"
+	"github.com/librespeed/speedtest-go/database/mysql"
+	"github.com/librespeed/speedtest-go/database/none"
+	"github.com/librespeed/speedtest-go/database/postgresql"
+	"github.com/librespeed/speedtest-go/database/schema"
+	"github.com/librespeed/speedtest-go/database/sqlite"
+
+	log "github.com/sirupsen/logrus"
 )
 
 var (
@@ -26,5 +32,15 @@ func SetDBInfo(conf *config.Config) {
 		DB = mysql.Open(conf.DatabaseHostname, conf.DatabaseUsername, conf.DatabasePassword, conf.DatabaseName)
 	case "bolt":
 		DB = bolt.Open(conf.DatabaseFile)
+	case "sqlite":
+		DB = sqlite.Open(conf.DatabaseFile)
+	case "mssql":
+		DB = mssql.Open(conf.DatabaseHostname, conf.DatabaseUsername, conf.DatabasePassword, conf.DatabaseName, conf.DatabasePort)
+	case "memory":
+		DB = memory.Open("")
+	case "none":
+		DB = none.Open("")
+	default:
+		log.Fatalf("Unsupported database type: %s", conf.DatabaseType)
 	}
 }

database/memory/memory.go

@@ -0,0 +1,51 @@
+package memory
+
+import (
+	"errors"
+	"sync"
+	"time"
+
+	"github.com/librespeed/speedtest-go/database/schema"
+)
+
+const (
+	// just enough records to return for FetchLast100
+	maxRecords = 100
+)
+
+type Memory struct {
+	lock    sync.RWMutex
+	records []schema.TelemetryData
+}
+
+func Open(_ string) *Memory {
+	return &Memory{}
+}
+
+func (mem *Memory) Insert(data *schema.TelemetryData) error {
+	mem.lock.Lock()
+	defer mem.lock.Unlock()
+	data.Timestamp = time.Now()
+	mem.records = append(mem.records, *data)
+	if len(mem.records) > maxRecords {
+		mem.records = mem.records[len(mem.records)-maxRecords:]
+	}
+	return nil
+}
+
+func (mem *Memory) FetchByUUID(uuid string) (*schema.TelemetryData, error) {
+	mem.lock.RLock()
+	defer mem.lock.RUnlock()
+	for _, record := range mem.records {
+		if record.UUID == uuid {
+			return &record, nil
+		}
+	}
+	return nil, errors.New("record not found")
+}
+
+func (mem *Memory) FetchLast100() ([]schema.TelemetryData, error) {
+	mem.lock.RLock()
+	defer mem.lock.RUnlock()
+	return mem.records, nil
+}

database/mssql/mssql.go

@@ -0,0 +1,81 @@
+package mssql
+
+import (
+	"database/sql"
+	"fmt"
+	"net/url"
+
+	"github.com/librespeed/speedtest-go/database/schema"
+
+	_ "github.com/denisenkom/go-mssqldb"
+	log "github.com/sirupsen/logrus"
+)
+
+type MSSQL struct {
+	db *sql.DB
+}
+
+func Open(hostname, username, password, database, port string) *MSSQL {
+	if port == "" {
+		port = "1433"
+	}
+
+	query := url.Values{}
+	query.Add("database", database)
+
+	connStr := fmt.Sprintf("sqlserver://%s:%s@%s:%s?%s",
+		url.QueryEscape(username),
+		url.QueryEscape(password),
+		hostname,
+		port,
+		query.Encode(),
+	)
+
+	conn, err := sql.Open("sqlserver", connStr)
+	if err != nil {
+		log.Fatalf("Cannot open MSSQL database: %s", err)
+	}
+
+	return &MSSQL{db: conn}
+}
+
+func (p *MSSQL) Insert(data *schema.TelemetryData) error {
+	stmt := `INSERT INTO speedtest_users (ip, ispinfo, extra, ua, lang, dl, ul, ping, jitter, log, uuid) 
+	         VALUES (@p1, @p2, @p3, @p4, @p5, @p6, @p7, @p8, @p9, @p10, @p11);`
+	_, err := p.db.Exec(stmt,
+		data.IPAddress, data.ISPInfo, data.Extra, data.UserAgent, data.Language,
+		data.Download, data.Upload, data.Ping, data.Jitter, data.Log, data.UUID)
+	return err
+}
+
+func (p *MSSQL) FetchByUUID(uuid string) (*schema.TelemetryData, error) {
+	var record schema.TelemetryData
+	row := p.db.QueryRow(`SELECT * FROM speedtest_users WHERE uuid = @p1`, uuid)
+	if row != nil {
+		var id int64
+		if err := row.Scan(&id, &record.Timestamp, &record.IPAddress, &record.ISPInfo, &record.Extra, &record.UserAgent, &record.Language, &record.Download, &record.Upload, &record.Ping, &record.Jitter, &record.Log, &record.UUID); err != nil {
+			return nil, fmt.Errorf("mssql fetch by uuid: %w", err)
+		}
+	}
+	return &record, nil
+}
+
+func (p *MSSQL) FetchLast100() ([]schema.TelemetryData, error) {
+	var records []schema.TelemetryData
+	rows, err := p.db.Query(`SELECT TOP 100 * FROM speedtest_users ORDER BY timestamp DESC;`)
+	if err != nil {
+		return nil, fmt.Errorf("mssql fetch last 100: %w", err)
+	}
+	if rows != nil {
+		defer rows.Close()
+		for rows.Next() {
+			var record schema.TelemetryData
+			var id int64
+			if err := rows.Scan(&id, &record.Timestamp, &record.IPAddress, &record.ISPInfo, &record.Extra, &record.UserAgent, &record.Language, &record.Download, &record.Upload, &record.Ping, &record.Jitter, &record.Log, &record.UUID); err != nil {
+				return nil, fmt.Errorf("mssql scan row: %w", err)
+			}
+			records = append(records, record)
+		}
+	}
+	return records, nil
+}

database/mssql/telemetry_mssql.sql

@@ -0,0 +1,27 @@
+--
+-- MSSQL database schema for speedtest telemetry
+--
+
+CREATE TABLE [dbo].[speedtest_users](
+    [id]        [bigint] IDENTITY(120,1) NOT NULL,
+    [timestamp] [datetime] NOT NULL,
+    [ip]        [nvarchar](max) NOT NULL,
+    [ispinfo]   [nvarchar](max) NULL,
+    [extra]     [nvarchar](max) NULL,
+    [ua]        [nvarchar](max) NOT NULL,
+    [lang]      [nvarchar](max) NOT NULL,
+    [dl]        [nvarchar](max) NULL,
+    [ul]        [nvarchar](max) NULL,
+    [ping]      [nvarchar](max) NULL,
+    [jitter]    [nvarchar](max) NULL,
+    [log]       [nvarchar](max) NULL,
+    [uuid]      [nvarchar](max) NULL,
+ CONSTRAINT [PK_speedtest_users] PRIMARY KEY CLUSTERED
+(
+    [id] ASC
+) WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
+) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
+GO
+
+ALTER TABLE [dbo].[speedtest_users] ADD  CONSTRAINT [DF_speedtest_users_timestamp]  DEFAULT (getdate()) FOR [timestamp]
+GO

database/mysql/mysql.go

@@ -4,14 +4,14 @@ import (
 	"database/sql"
 	"fmt"
 
-	"github.com/librespeed/speedtest/database/schema"
+	"github.com/librespeed/speedtest-go/database/schema"
 
 	_ "github.com/go-sql-driver/mysql"
 	log "github.com/sirupsen/logrus"
 )
 
 const (
-	connectionStringTemplate = `%s:%s@%s/%s`
+	connectionStringTemplate = `%s:%s@%s/%s?parseTime=true`
 )
 
 type MySQL struct {

database/none/none.go

@@ -0,0 +1,23 @@
+package none
+
+import (
+	"github.com/librespeed/speedtest-go/database/schema"
+)
+
+type None struct{}
+
+func Open(_ string) *None {
+	return &None{}
+}
+
+func (n *None) Insert(_ *schema.TelemetryData) error {
+	return nil
+}
+
+func (n *None) FetchByUUID(_ string) (*schema.TelemetryData, error) {
+	return &schema.TelemetryData{}, nil
+}
+
+func (n *None) FetchLast100() ([]schema.TelemetryData, error) {
+	return []schema.TelemetryData{}, nil
+}

database/postgresql/postgresql.go

@@ -4,7 +4,7 @@ import (
 	"database/sql"
 	"fmt"
 
-	"github.com/librespeed/speedtest/database/schema"
+	"github.com/librespeed/speedtest-go/database/schema"
 
 	_ "github.com/lib/pq"
 	log "github.com/sirupsen/logrus"

database/sqlite/sqlite.go

@@ -0,0 +1,95 @@
+package sqlite
+
+import (
+	"database/sql"
+	"fmt"
+
+	"github.com/librespeed/speedtest-go/database/schema"
+
+	_ "modernc.org/sqlite"
+	log "github.com/sirupsen/logrus"
+)
+
+type SQLite struct {
+	db *sql.DB
+}
+
+func Open(databaseFile string) *SQLite {
+	conn, err := sql.Open("sqlite", databaseFile)
+	if err != nil {
+		log.Fatalf("Cannot open SQLite database: %s", err)
+	}
+
+	// Enable WAL mode for better concurrent performance
+	if _, err := conn.Exec("PRAGMA journal_mode=WAL"); err != nil {
+		log.Warnf("Failed to set SQLite journal mode to WAL: %s", err)
+	}
+
+	// Create table if not exists (matching the PHP SQLite auto-creation behavior)
+	stmt := `CREATE TABLE IF NOT EXISTS speedtest_users (
+		id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+		timestamp DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+		ip TEXT NOT NULL,
+		ispinfo TEXT,
+		extra TEXT,
+		ua TEXT NOT NULL,
+		lang TEXT NOT NULL,
+		dl TEXT,
+		ul TEXT,
+		ping TEXT,
+		jitter TEXT,
+		log TEXT,
+		uuid TEXT
+	);`
+	if _, err := conn.Exec(stmt); err != nil {
+		log.Fatalf("Failed to create speedtest_users table: %s", err)
+	}
+
+	return &SQLite{db: conn}
+}
+
+func (p *SQLite) Insert(data *schema.TelemetryData) error {
+	var existingID int
+	// Check for duplicate UUID first
+	err := p.db.QueryRow(`SELECT id FROM speedtest_users WHERE uuid = ?`, data.UUID).Scan(&existingID)
+	if err == nil {
+		// Record with this UUID already exists - skip insert
+		return nil
+	}
+
+	stmt := `INSERT INTO speedtest_users (ip, ispinfo, extra, ua, lang, dl, ul, ping, jitter, log, uuid) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);`
+	_, err = p.db.Exec(stmt, data.IPAddress, data.ISPInfo, data.Extra, data.UserAgent, data.Language, data.Download, data.Upload, data.Ping, data.Jitter, data.Log, data.UUID)
+	return err
+}
+
+func (p *SQLite) FetchByUUID(uuid string) (*schema.TelemetryData, error) {
+	var record schema.TelemetryData
+	row := p.db.QueryRow(`SELECT * FROM speedtest_users WHERE uuid = ?`, uuid)
+	if row != nil {
+		var id int
+		if err := row.Scan(&id, &record.Timestamp, &record.IPAddress, &record.ISPInfo, &record.Extra, &record.UserAgent, &record.Language, &record.Download, &record.Upload, &record.Ping, &record.Jitter, &record.Log, &record.UUID); err != nil {
+			return nil, fmt.Errorf("sqlite fetch by uuid: %w", err)
+		}
+	}
+	return &record, nil
+}
+
+func (p *SQLite) FetchLast100() ([]schema.TelemetryData, error) {
+	var records []schema.TelemetryData
+	rows, err := p.db.Query(`SELECT * FROM speedtest_users ORDER BY timestamp DESC LIMIT 100;`)
+	if err != nil {
+		return nil, fmt.Errorf("sqlite fetch last 100: %w", err)
+	}
+	if rows != nil {
+		defer rows.Close()
+		for rows.Next() {
+			var record schema.TelemetryData
+			var id int
+			if err := rows.Scan(&id, &record.Timestamp, &record.IPAddress, &record.ISPInfo, &record.Extra, &record.UserAgent, &record.Language, &record.Download, &record.Upload, &record.Ping, &record.Jitter, &record.Log, &record.UUID); err != nil {
+				return nil, fmt.Errorf("sqlite scan row: %w", err)
+			}
+			records = append(records, record)
+		}
+	}
+	return records, nil
+}

database/sqlite/telemetry_sqlite.sql

@@ -0,0 +1,21 @@
+--
+-- SQLite database schema for speedtest telemetry
+-- Auto-created by the sqlite backend if it doesn't exist.
+-- This file is provided for reference / manual setup.
+--
+
+CREATE TABLE IF NOT EXISTS `speedtest_users` (
+    `id`        INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    `timestamp` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `ip`        TEXT NOT NULL,
+    `ispinfo`   TEXT,
+    `extra`     TEXT,
+    `ua`        TEXT NOT NULL,
+    `lang`      TEXT NOT NULL,
+    `dl`        TEXT,
+    `ul`        TEXT,
+    `ping`      TEXT,
+    `jitter`    TEXT,
+    `log`       TEXT,
+    `uuid`      TEXT
+);

go.mod

@@ -1,18 +1,54 @@
-module github.com/librespeed/speedtest
+module github.com/librespeed/speedtest-go
 
-go 1.13
+go 1.25.0
 
 require (
-	github.com/go-chi/chi v4.0.3+incompatible
-	github.com/go-chi/cors v1.0.0
+	github.com/breml/rootcerts v0.2.1
+	github.com/coreos/go-systemd/v22 v22.4.0
+	github.com/denisenkom/go-mssqldb v0.12.3
+	github.com/go-chi/chi/v5 v5.0.7
+	github.com/go-chi/cors v1.2.0
 	github.com/go-chi/render v1.0.1
-	github.com/go-sql-driver/mysql v1.5.0
+	github.com/go-sql-driver/mysql v1.6.0
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
-	github.com/gorilla/websocket v1.4.2
-	github.com/lib/pq v1.3.0
+	github.com/gorilla/securecookie v1.1.1
+	github.com/gorilla/sessions v1.2.1
+	github.com/lib/pq v1.10.4
 	github.com/oklog/ulid/v2 v2.0.2
-	github.com/sirupsen/logrus v1.4.2
-	github.com/spf13/viper v1.6.2
-	go.etcd.io/bbolt v1.3.3
-	golang.org/x/image v0.0.0-20200119044424-58c23975cae1
+	github.com/oschwald/maxminddb-golang v1.13.1
+	github.com/pires/go-proxyproto v0.6.1
+	github.com/sirupsen/logrus v1.8.1
+	github.com/spf13/viper v1.10.1
+	github.com/umahmood/haversine v0.0.0-20151105152445-808ab04add26
+	go.etcd.io/bbolt v1.3.6
+	golang.org/x/crypto v0.48.0
+	golang.org/x/image v0.0.0-20211028202545-6944b10bf410
+	modernc.org/sqlite v1.50.0
+)
+
+require (
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/fsnotify/fsnotify v1.5.1 // indirect
+	github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe // indirect
+	github.com/golang-sql/sqlexp v0.1.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/magiconair/properties v1.8.5 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mitchellh/mapstructure v1.4.3 // indirect
+	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/pelletier/go-toml v1.9.4 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/spf13/afero v1.8.0 // indirect
+	github.com/spf13/cast v1.4.1 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.2.0 // indirect
+	golang.org/x/sys v0.42.0 // indirect
+	golang.org/x/text v0.34.0 // indirect
+	gopkg.in/ini.v1 v1.66.2 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	modernc.org/libc v1.72.0 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.11.0 // indirect
 )

go.sum

@@ -1,179 +1,582 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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main.go

@@ -2,12 +2,14 @@ package main
 
 import (
 	"flag"
+	_ "time/tzdata"
 
-	"github.com/librespeed/speedtest/config"
-	"github.com/librespeed/speedtest/database"
-	"github.com/librespeed/speedtest/results"
-	"github.com/librespeed/speedtest/web"
+	"github.com/librespeed/speedtest-go/config"
+	"github.com/librespeed/speedtest-go/database"
+	"github.com/librespeed/speedtest-go/results"
+	"github.com/librespeed/speedtest-go/web"
 
+	_ "github.com/breml/rootcerts"
 	log "github.com/sirupsen/logrus"
 )
 
@@ -17,14 +19,7 @@ var (
 
 func main() {
 	flag.Parse()
-
-	var conf config.Config
-	if *optConfig != "" {
-		conf = config.LoadFile(*optConfig)
-	} else {
-		conf = config.Load()
-	}
-
+	conf := config.Load(*optConfig)
 	web.SetServerLocation(&conf)
 	results.Initialize(&conf)
 	database.SetDBInfo(&conf)

results/idobfuscation.go

@@ -0,0 +1,119 @@
+package results
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/binary"
+	"fmt"
+	"os"
+	"path/filepath"
+	"sync"
+
+	"github.com/oklog/ulid/v2"
+	log "github.com/sirupsen/logrus"
+)
+
+// ID obfuscation provides an optional privacy layer for test result URLs.
+// When enabled, the telemetry endpoint returns an obfuscated ULID that must
+// be deobfuscated before looking up the result.
+//
+// This is NOT cryptographically secure — it prevents casual ID guessing,
+// matching the behavior of the PHP version's idObfuscation.php.
+
+var (
+	obfuscationSalt     uint32
+	obfuscationSaltOnce sync.Once
+	obfuscationSaltErr  error
+)
+
+const obfuscationSaltFile = "idObfuscation_salt.bin"
+
+func getOrCreateObfuscationSalt() (uint32, error) {
+	obfuscationSaltOnce.Do(func() {
+		data, err := os.ReadFile(obfuscationSaltFile)
+		if err == nil && len(data) == 4 {
+			obfuscationSalt = binary.LittleEndian.Uint32(data)
+			return
+		}
+
+		saltBytes := make([]byte, 4)
+		if _, err := rand.Read(saltBytes); err != nil {
+			obfuscationSaltErr = fmt.Errorf("failed to generate obfuscation salt: %w", err)
+			return
+		}
+		obfuscationSalt = binary.LittleEndian.Uint32(saltBytes)
+
+		dir := filepath.Dir(obfuscationSaltFile)
+		if dir != "." {
+			if err := os.MkdirAll(dir, 0755); err != nil {
+				log.Warnf("Could not create directory for obfuscation salt file: %s", err)
+			}
+		}
+		if err := os.WriteFile(obfuscationSaltFile, saltBytes, 0644); err != nil {
+			log.Warnf("Could not save obfuscation salt file: %s", err)
+		}
+	})
+
+	return obfuscationSalt, obfuscationSaltErr
+}
+
+// obfuscateBytes applies reversible transform on ULID bytes:
+// XOR the first 4 bytes with the salt (simple but effective for casual privacy)
+func obfuscateBytes(data []byte) []byte {
+	salt, err := getOrCreateObfuscationSalt()
+	if err != nil || len(data) < 4 {
+		return data
+	}
+	result := make([]byte, len(data))
+	copy(result, data)
+	val := binary.LittleEndian.Uint32(result[:4])
+	val ^= salt
+	binary.LittleEndian.PutUint32(result[:4], val)
+	return result
+}
+
+// deobfuscateBytes reverses obfuscateBytes (XOR is self-inverse)
+var deobfuscateBytes = obfuscateBytes
+
+// ObfuscateULID transforms a ULID string to its obfuscated (base64) form
+func ObfuscateULID(id string) string {
+	parsed, err := ulid.Parse(id)
+	if err != nil {
+		return id
+	}
+	obfuscated := obfuscateBytes(parsed[:])
+	return base64.RawURLEncoding.EncodeToString(obfuscated)
+}
+
+// DeobfuscateULID reverses ULID obfuscation
+func DeobfuscateULID(obfuscated string) (string, error) {
+	data, err := base64.RawURLEncoding.DecodeString(obfuscated)
+	if err != nil {
+		return "", fmt.Errorf("invalid obfuscated ID encoding: %w", err)
+	}
+	if len(data) != 16 {
+		return "", fmt.Errorf("invalid obfuscated ID length: %d", len(data))
+	}
+	deobfuscated := deobfuscateBytes(data)
+	var id ulid.ULID
+	copy(id[:], deobfuscated)
+	return id.String(), nil
+}
+
+// ResolveID takes an ID string and returns the database ULID.
+// It tries the raw input first, then attempts deobfuscation.
+func ResolveID(id string) string {
+	// First try: use as-is (plain ULID)
+	if _, err := ulid.Parse(id); err == nil {
+		return id
+	}
+
+	// Second try: deobfuscate
+	if deobfuscated, err := DeobfuscateULID(id); err == nil {
+		return deobfuscated
+	}
+
+	return id
+}
+
+

results/json.go

@@ -0,0 +1,102 @@
+package results
+
+import (
+	"encoding/json"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"github.com/go-chi/render"
+	"github.com/librespeed/speedtest-go/config"
+	"github.com/librespeed/speedtest-go/database"
+	log "github.com/sirupsen/logrus"
+)
+
+// formatValue formats a numeric string for display, matching PHP behavior:
+//   - values < 10: 2 decimal places
+//   - values < 100: 1 decimal place
+//   - values >= 100: 0 decimal places
+func formatValue(d string) string {
+	val, err := strconv.ParseFloat(d, 64)
+	if err != nil {
+		return d
+	}
+	if val < 10 {
+		return strconv.FormatFloat(val, 'f', 2, 64)
+	}
+	if val < 100 {
+		return strconv.FormatFloat(val, 'f', 1, 64)
+	}
+	return strconv.FormatFloat(val, 'f', 0, 64)
+}
+
+// extractISPName extracts the ISP name from the processedString format:
+// "IP - ISP, Country (distance)" → "ISP"
+func extractISPName(processedString string) string {
+	dash := strings.Index(processedString, "-")
+	if dash == -1 {
+		return ""
+	}
+	isp := strings.TrimSpace(processedString[dash+1:])
+	par := strings.LastIndex(isp, "(")
+	if par != -1 {
+		isp = strings.TrimSpace(isp[:par])
+	}
+	return isp
+}
+
+// JSONResponse is the structure returned by the JSON results endpoint
+type JSONResponse struct {
+	Timestamp string `json:"timestamp"`
+	Download  string `json:"download"`
+	Upload    string `json:"upload"`
+	Ping      string `json:"ping"`
+	Jitter    string `json:"jitter"`
+	ISPInfo   string `json:"ispinfo"`
+}
+
+// JSONResult handles GET /results/json?id=X and returns test results as JSON
+func JSONResult(w http.ResponseWriter, r *http.Request) {
+	conf := config.LoadedConfig()
+
+	if conf.DatabaseType == "none" {
+		render.PlainText(w, r, "Telemetry is disabled")
+		return
+	}
+
+	rawID := r.FormValue("id")
+	if rawID == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		render.JSON(w, r, map[string]string{"error": "missing id parameter"})
+		return
+	}
+
+	uuid := ResolveID(rawID)
+	record, err := database.DB.FetchByUUID(uuid)
+	if err != nil {
+		log.Errorf("Error querying database for JSON result: %s", err)
+		w.WriteHeader(http.StatusNotFound)
+		render.JSON(w, r, map[string]string{"error": "result not found"})
+		return
+	}
+
+	// Format values for display (matching PHP json.php behavior)
+	resp := JSONResponse{
+		Timestamp: record.Timestamp.Format("2006-01-02 15:04:05"),
+		Download:  formatValue(record.Download),
+		Upload:    formatValue(record.Upload),
+		Ping:      formatValue(record.Ping),
+		Jitter:    formatValue(record.Jitter),
+	}
+
+	// Extract ISP name from ISP info JSON
+	var result Result
+	if err := json.Unmarshal([]byte(record.ISPInfo), &result); err == nil {
+		resp.ISPInfo = extractISPName(result.ProcessedString)
+	}
+
+	w.Header().Set("Cache-Control", "no-store, no-cache, must-revalidate, max-age=0, s-maxage=0")
+	w.Header().Add("Cache-Control", "post-check=0, pre-check=0")
+	w.Header().Set("Pragma", "no-cache")
+	render.JSON(w, r, resp)
+}

results/stats.go

@@ -4,11 +4,15 @@ import (
 	"html/template"
 	"net/http"
 
+	"github.com/go-chi/render"
 	log "github.com/sirupsen/logrus"
+	"golang.org/x/crypto/bcrypt"
 
-	"github.com/librespeed/speedtest/config"
-	"github.com/librespeed/speedtest/database"
-	"github.com/librespeed/speedtest/database/schema"
+	"github.com/gorilla/securecookie"
+	"github.com/gorilla/sessions"
+	"github.com/librespeed/speedtest-go/config"
+	"github.com/librespeed/speedtest-go/database"
+	"github.com/librespeed/speedtest-go/database/schema"
 )
 
 type StatsData struct {
@@ -17,6 +21,37 @@ type StatsData struct {
 	Data       []schema.TelemetryData
 }
 
+var (
+	store         *sessions.CookieStore
+	conf          *config.Config
+	checkPassword func(password string) bool
+)
+
+func statsInitialize(c *config.Config) {
+	key := []byte(securecookie.GenerateRandomKey(32))
+	store = sessions.NewCookieStore(key)
+	store.Options = &sessions.Options{
+		Path:     c.BaseURL + "/stats",
+		MaxAge:   3600 * 1, // 1 hour
+		HttpOnly: true,
+		SameSite: http.SameSiteStrictMode,
+	}
+	conf = c
+
+	// Check if StatsPassword is a valid bcrypt hash
+	if _, err := bcrypt.Cost([]byte(c.StatsPassword)); err == nil {
+		log.Println("statistics_password is valid bcrypt hash")
+		checkPassword = func(password string) bool {
+			return nil == bcrypt.CompareHashAndPassword([]byte(c.StatsPassword), []byte(password))
+		}
+
+	} else {
+		checkPassword = func(password string) bool {
+			return password == c.StatsPassword
+		}
+	}
+}
+
 func Stats(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
 	t, err := template.New("template").Parse(htmlTemplate)
@@ -26,7 +61,11 @@ func Stats(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	conf := config.LoadedConfig()
+	if conf.DatabaseType == "none" {
+		render.PlainText(w, r, "Statistics are disabled")
+		return
+	}
+
 	var data StatsData
 
 	if conf.StatsPassword == "PASSWORD" {
@@ -35,16 +74,15 @@ func Stats(w http.ResponseWriter, r *http.Request) {
 
 	if !data.NoPassword {
 		op := r.FormValue("op")
-		c, _ := r.Cookie("logged")
+		session, _ := store.Get(r, "logged")
+		auth, ok := session.Values["authenticated"].(bool)
 
-		if c != nil && c.Value == "true" {
+		if auth && ok {
 			if op == "logout" {
-				cookie := &http.Cookie{
-					Name:  "logged",
-					Value: "false",
-				}
-				http.SetCookie(w, cookie)
-				http.Redirect(w, r, "/stats", http.StatusTemporaryRedirect)
+				session.Values["authenticated"] = false
+				session.Options.MaxAge = -1
+				session.Save(r, w)
+				http.Redirect(w, r, conf.BaseURL+"/stats", http.StatusTemporaryRedirect)
 			} else {
 				data.LoggedIn = true
 
@@ -71,14 +109,12 @@ func Stats(w http.ResponseWriter, r *http.Request) {
 			}
 		} else {
 			if op == "login" {
+				session, _ := store.Get(r, "logged")
 				password := r.FormValue("password")
-				if password == conf.StatsPassword {
-					cookie := &http.Cookie{
-						Name:  "logged",
-						Value: "true",
-					}
-					http.SetCookie(w, cookie)
-					http.Redirect(w, r, "/stats", http.StatusTemporaryRedirect)
+				if checkPassword(password) {
+					session.Values["authenticated"] = true
+					session.Save(r, w)
+					http.Redirect(w, r, conf.BaseURL+"/stats", http.StatusTemporaryRedirect)
 				} else {
 					w.WriteHeader(http.StatusForbidden)
 				}

results/telemetry.go

@@ -1,23 +1,23 @@
 package results
 
 import (
+	_ "embed"
 	"encoding/json"
 	"image"
 	"image/color"
 	"image/draw"
 	"image/png"
-	"io/ioutil"
 	"math/rand"
 	"net"
 	"net/http"
-	"path/filepath"
 	"regexp"
 	"strings"
 	"time"
 
-	"github.com/librespeed/speedtest/config"
-	"github.com/librespeed/speedtest/database"
-	"github.com/librespeed/speedtest/database/schema"
+	"github.com/go-chi/render"
+	"github.com/librespeed/speedtest-go/config"
+	"github.com/librespeed/speedtest-go/database"
+	"github.com/librespeed/speedtest-go/database/schema"
 
 	"github.com/golang/freetype"
 	"github.com/golang/freetype/truetype"
@@ -37,16 +37,26 @@ const (
 	labelUpload   = "Upload"
 )
 
+//go:embed fonts/NotoSansDisplay-Medium.ttf
+var fontMediumBytes []byte
+
+//go:embed fonts/NotoSansDisplay-Light.ttf
+var fontLightBytes []byte
+
 var (
-	ipv4Regex     = regexp.MustCompile(`(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)`)
+	ipv4Regex     = regexp.MustCompile(`(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)`)
 	ipv6Regex     = regexp.MustCompile(`(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4})?:)?((25[0-5]|(2[0-4]|1?[0-9])?[0-9])\.){3}(25[0-5]|(2[0-4]|1?[0-9])?[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1?[0-9])?[0-9])\.){3}(25[0-5]|(2[0-4]|1?[0-9])?[0-9]))`)
 	hostnameRegex = regexp.MustCompile(`"hostname":"([^\\\\"]|\\\\")*"`)
 
 	fontLight, fontBold                                                                                                *truetype.Font
-	labelFace, valueFace, smallLabelFace, orgFace, watermarkFace font.Face
+	pingJitterLabelFace, upDownLabelFace, pingJitterValueFace, upDownValueFace, smallLabelFace, ispFace, watermarkFace font.Face
 
-	canvasWidth, canvasHeight = 800, 600
+	canvasWidth, canvasHeight = 500, 286
 	dpi                       = 150.0
+	topOffset                 = 10
+	middleOffset              = topOffset + 5
+	bottomOffset              = middleOffset - 10
+	ispOffset                 = bottomOffset + 8
 	colorLabel                = image.NewUniform(color.RGBA{40, 40, 40, 255})
 	colorDownload             = image.NewUniform(color.RGBA{96, 96, 170, 255})
 	colorUpload               = image.NewUniform(color.RGBA{96, 96, 96, 255})
@@ -77,60 +87,71 @@ type IPInfoResponse struct {
 }
 
 func Initialize(c *config.Config) {
+	statsInitialize(c)
 	// changed to use Noto Sans instead of OpenSans, due to issue:
 	// https://github.com/golang/freetype/issues/8
-	if b, err := ioutil.ReadFile(filepath.Join(c.AssetsPath, "NotoSansDisplay-Light.ttf")); err != nil {
-		log.Fatalf("Error opening NotoSansDisplay-Light font: %s", err)
-	} else {
-		f, err := freetype.ParseFont(b)
+	fLight, err := freetype.ParseFont(fontLightBytes)
 	if err != nil {
 		log.Fatalf("Error parsing NotoSansDisplay-Light font: %s", err)
 	}
-		fontLight = f
-	}
+	fontLight = fLight
 
-	if b, err := ioutil.ReadFile(filepath.Join(c.AssetsPath, "NotoSansDisplay-Medium.ttf")); err != nil {
-		log.Fatalf("Error opening NotoSansDisplay-Medium font: %s", err)
-	} else {
-		f, err := freetype.ParseFont(b)
+	fMedium, err := freetype.ParseFont(fontMediumBytes)
 	if err != nil {
 		log.Fatalf("Error parsing NotoSansDisplay-Medium font: %s", err)
 	}
-		fontBold = f
-	}
+	fontBold = fMedium
 
-	labelFace = truetype.NewFace(fontBold, &truetype.Options{
-		Size:    26,
+	pingJitterLabelFace = truetype.NewFace(fontBold, &truetype.Options{
+		Size:    12,
 		DPI:     dpi,
 		Hinting: font.HintingFull,
 	})
 
-	valueFace = truetype.NewFace(fontLight, &truetype.Options{
-		Size:    36,
+	upDownLabelFace = truetype.NewFace(fontBold, &truetype.Options{
+		Size:    14,
 		DPI:     dpi,
 		Hinting: font.HintingFull,
 	})
 
-	smallLabelFace = truetype.NewFace(fontBold, &truetype.Options{
-		Size:    20,
-		DPI:     dpi,
-		Hinting: font.HintingFull,
-	})
-
-	orgFace = truetype.NewFace(fontBold, &truetype.Options{
+	pingJitterValueFace = truetype.NewFace(fontLight, &truetype.Options{
 		Size:    16,
 		DPI:     dpi,
 		Hinting: font.HintingFull,
 	})
 
+	upDownValueFace = truetype.NewFace(fontLight, &truetype.Options{
+		Size:    18,
+		DPI:     dpi,
+		Hinting: font.HintingFull,
+	})
+
+	smallLabelFace = truetype.NewFace(fontBold, &truetype.Options{
+		Size:    10,
+		DPI:     dpi,
+		Hinting: font.HintingFull,
+	})
+
+	ispFace = truetype.NewFace(fontBold, &truetype.Options{
+		Size:    8,
+		DPI:     dpi,
+		Hinting: font.HintingFull,
+	})
+
 	watermarkFace = truetype.NewFace(fontLight, &truetype.Options{
-		Size:    14,
+		Size:    6,
 		DPI:     dpi,
 		Hinting: font.HintingFull,
 	})
 }
 
 func Record(w http.ResponseWriter, r *http.Request) {
+	conf := config.LoadedConfig()
+	if conf.DatabaseType == "none" {
+		render.PlainText(w, r, "Telemetry is disabled")
+		return
+	}
+
 	ipAddr, _, _ := net.SplitHostPort(r.RemoteAddr)
 	userAgent := r.UserAgent()
 	language := r.Header.Get("Accept-Language")
@@ -145,12 +166,12 @@ func Record(w http.ResponseWriter, r *http.Request) {
 
 	if config.LoadedConfig().RedactIP {
 		ipAddr  = "0.0.0.0"
-		ipv4Regex.ReplaceAllString(ispInfo, "0.0.0.0")
-		ipv4Regex.ReplaceAllString(logs, "0.0.0.0")
-		ipv6Regex.ReplaceAllString(ispInfo, "0.0.0.0")
-		ipv6Regex.ReplaceAllString(logs, "0.0.0.0")
-		hostnameRegex.ReplaceAllString(ispInfo, `"hostname":"REDACTED"`)
-		hostnameRegex.ReplaceAllString(logs, `"hostname":"REDACTED"`)
+		ispInfo = ipv4Regex.ReplaceAllString(ispInfo, "0.0.0.0")
+		logs    = ipv4Regex.ReplaceAllString(logs, "0.0.0.0")
+		ispInfo = ipv6Regex.ReplaceAllString(ispInfo, "::")
+		logs    = ipv6Regex.ReplaceAllString(logs, "::")
+		ispInfo = hostnameRegex.ReplaceAllString(ispInfo, `"hostname":"REDACTED"`)
+		logs    = hostnameRegex.ReplaceAllString(logs, `"hostname":"REDACTED"`)
 	}
 
 	var record schema.TelemetryData
@@ -181,14 +202,26 @@ func Record(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	if _, err := w.Write([]byte("id " + uuid.String())); err != nil {
+	responseID := uuid.String()
+	if config.LoadedConfig().EnableIDObfuscation {
+		responseID = ObfuscateULID(uuid.String())
+	}
+
+	if _, err := w.Write([]byte("id " + responseID)); err != nil {
 		log.Errorf("Error writing ID to telemetry request: %s", err)
 		w.WriteHeader(http.StatusInternalServerError)
 	}
 }
 
 func DrawPNG(w http.ResponseWriter, r *http.Request) {
-	uuid := r.FormValue("id")
+	conf := config.LoadedConfig()
+
+	if conf.DatabaseType == "none" {
+		return
+	}
+
+	rawID := r.FormValue("id")
+	uuid := ResolveID(rawID)
 	record, err := database.DB.FetchByUUID(uuid)
 	if err != nil {
 		log.Errorf("Error querying database: %s", err)
@@ -215,7 +248,7 @@ func DrawPNG(w http.ResponseWriter, r *http.Request) {
 
 	drawer := &font.Drawer{
 		Dst:  canvas,
-		Face: labelFace,
+		Face: pingJitterLabelFace,
 	}
 
 	drawer.Src = colorLabel
@@ -223,40 +256,41 @@ func DrawPNG(w http.ResponseWriter, r *http.Request) {
 	// labels
 	p := drawer.MeasureString(labelPing)
 	x := canvasWidth/4 - p.Round()/2
-	drawer.Dot = freetype.Pt(x, canvasHeight/10)
+	drawer.Dot = freetype.Pt(x, canvasHeight/10+topOffset)
 	drawer.DrawString(labelPing)
 
 	p = drawer.MeasureString(labelJitter)
 	x = canvasWidth*3/4 - p.Round()/2
-	drawer.Dot = freetype.Pt(x, canvasHeight/10)
+	drawer.Dot = freetype.Pt(x, canvasHeight/10+topOffset)
 	drawer.DrawString(labelJitter)
 
+	drawer.Face = upDownLabelFace
 	p = drawer.MeasureString(labelDownload)
 	x = canvasWidth/4 - p.Round()/2
-	drawer.Dot = freetype.Pt(x, canvasHeight/2)
+	drawer.Dot = freetype.Pt(x, canvasHeight/2-middleOffset)
 	drawer.DrawString(labelDownload)
 
 	p = drawer.MeasureString(labelUpload)
 	x = canvasWidth*3/4 - p.Round()/2
-	drawer.Dot = freetype.Pt(x, canvasHeight/2)
+	drawer.Dot = freetype.Pt(x, canvasHeight/2-middleOffset)
 	drawer.DrawString(labelUpload)
 
 	drawer.Face = smallLabelFace
 	drawer.Src = colorMeasure
 	p = drawer.MeasureString(labelMbps)
 	x = canvasWidth/4 - p.Round()/2
-	drawer.Dot = freetype.Pt(x, canvasHeight*8/10)
+	drawer.Dot = freetype.Pt(x, canvasHeight*8/10-middleOffset)
 	drawer.DrawString(labelMbps)
 
 	p = drawer.MeasureString(labelMbps)
 	x = canvasWidth*3/4 - p.Round()/2
-	drawer.Dot = freetype.Pt(x, canvasHeight*8/10)
+	drawer.Dot = freetype.Pt(x, canvasHeight*8/10-middleOffset)
 	drawer.DrawString(labelMbps)
 
 	msLength := drawer.MeasureString(labelMS)
 
 	// ping value
-	drawer.Face = valueFace
+	drawer.Face = pingJitterValueFace
 	pingValue := strings.Split(record.Ping, ".")[0]
 	p = drawer.MeasureString(pingValue)
 
@@ -271,13 +305,12 @@ func DrawPNG(w http.ResponseWriter, r *http.Request) {
 	drawer.DrawString(labelMS)
 
 	// jitter value
-	drawer.Face = valueFace
-	jitterValue := strings.Split(record.Jitter, ".")[0]
-	p = drawer.MeasureString(jitterValue)
+	drawer.Face = pingJitterValueFace
+	p = drawer.MeasureString(record.Jitter)
 	x = canvasWidth*3/4 - (p.Round()+msLength.Round())/2
 	drawer.Dot = freetype.Pt(x, canvasHeight*11/40)
 	drawer.Src = colorJitter
-	drawer.DrawString(jitterValue)
+	drawer.DrawString(record.Jitter)
 	drawer.Face = smallLabelFace
 	x = x + p.Round()
 	drawer.Dot = freetype.Pt(x, canvasHeight*11/40)
@@ -285,17 +318,17 @@ func DrawPNG(w http.ResponseWriter, r *http.Request) {
 	drawer.DrawString(labelMS)
 
 	// download value
-	drawer.Face = valueFace
+	drawer.Face = upDownValueFace
 	p = drawer.MeasureString(record.Download)
 	x = canvasWidth/4 - p.Round()/2
-	drawer.Dot = freetype.Pt(x, canvasHeight*27/40)
+	drawer.Dot = freetype.Pt(x, canvasHeight*27/40-middleOffset)
 	drawer.Src = colorDownload
 	drawer.DrawString(record.Download)
 
 	// upload value
 	p = drawer.MeasureString(record.Upload)
 	x = canvasWidth*3/4 - p.Round()/2
-	drawer.Dot = freetype.Pt(x, canvasHeight*27/40)
+	drawer.Dot = freetype.Pt(x, canvasHeight*27/40-middleOffset)
 	drawer.Src = colorUpload
 	drawer.DrawString(record.Upload)
 
@@ -310,28 +343,33 @@ func DrawPNG(w http.ResponseWriter, r *http.Request) {
 	drawer.Src = colorWatermark
 	p = drawer.MeasureString(watermark)
 	x = canvasWidth - p.Round() - 5
-	drawer.Dot = freetype.Pt(x, canvasHeight-10)
+	drawer.Dot = freetype.Pt(x, canvasHeight-bottomOffset)
 	drawer.DrawString(watermark)
 
+	// timestamp
+	ts := record.Timestamp.Format("2006-01-02 15:04:05")
+	p = drawer.MeasureString(ts)
+	drawer.Dot = freetype.Pt(8, canvasHeight-bottomOffset)
+	drawer.DrawString(ts)
+
 	// separator
 	for i := canvas.Bounds().Min.X; i < canvas.Bounds().Max.X; i++ {
-		canvas.Set(i, canvasHeight-ctx.PointToFixed(14).Round()-10, colorSeparator)
+		canvas.Set(i, canvasHeight-ctx.PointToFixed(6).Round()-bottomOffset, colorSeparator)
 	}
 
 	// ISP info
-	drawer.Face = orgFace
+	drawer.Face = ispFace
 	drawer.Src = colorISP
-	drawer.Dot = freetype.Pt(6, canvasHeight-ctx.PointToFixed(14).Round()-15)
-	if result.RawISPInfo.Organization != "" {
-		removeRegexp := regexp.MustCompile(`AS\d+\s`)
-		org := removeRegexp.ReplaceAllString(result.RawISPInfo.Organization, "")
-		if result.RawISPInfo.Country != "" {
-			org += ", " + result.RawISPInfo.Country
+	drawer.Dot = freetype.Pt(8, canvasHeight-ctx.PointToFixed(6).Round()-ispOffset)
+	var ispString string
+	if strings.Contains(result.ProcessedString, "-") {
+		str := strings.SplitN(result.ProcessedString, "-", 2)
+		if strings.Contains(str[1], "(") {
+			str = strings.SplitN(str[1], "(", 2)
 		}
-		drawer.DrawString(org)
-	} else {
-		drawer.DrawString(result.ProcessedString)
+		ispString = str[0]
 	}
+	drawer.DrawString("ISP: " + ispString)
 
 	w.Header().Set("Content-Disposition", "inline; filename="+uuid+".png")
 	w.Header().Set("Content-Type", "image/png")

results/telemetry_test.go

@@ -0,0 +1,121 @@
+package results
+
+import (
+	"testing"
+)
+
+func TestIPRedaction(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		wantOut  string
+		regex    func(string, string) string
+		redactTo string
+	}{
+		{
+			name:     "IPv4 in ispInfo is redacted",
+			input:    `{"ip":"203.0.113.42","org":"AS12345 Example ISP"}`,
+			wantOut:  `{"ip":"0.0.0.0","org":"AS12345 Example ISP"}`,
+			regex:    ipv4Regex.ReplaceAllString,
+			redactTo: "0.0.0.0",
+		},
+		{
+			name:     "multiple IPv4 addresses in logs are all redacted",
+			input:    `connected from 203.0.113.42, forwarded for 198.51.100.7`,
+			wantOut:  `connected from 0.0.0.0, forwarded for 0.0.0.0`,
+			regex:    ipv4Regex.ReplaceAllString,
+			redactTo: "0.0.0.0",
+		},
+		{
+			name:     "empty string is handled safely by IPv4 regex",
+			input:    "",
+			wantOut:  "",
+			regex:    ipv4Regex.ReplaceAllString,
+			redactTo: "0.0.0.0",
+		},
+		{
+			name:     "IPv6 in ispInfo is redacted",
+			input:    `{"ip":"2001:0db8:85a3:0000:0000:8a2e:0370:7334","org":"AS12345 Example ISP"}`,
+			wantOut:  `{"ip":"::","org":"AS12345 Example ISP"}`,
+			regex:    ipv6Regex.ReplaceAllString,
+			redactTo: "::",
+		},
+		{
+			name:     "empty string is handled safely by IPv6 regex",
+			input:    "",
+			wantOut:  "",
+			regex:    ipv6Regex.ReplaceAllString,
+			redactTo: "::",
+		},
+		{
+			name:     "hostname in ispInfo is redacted",
+			input:    `{"ip":"0.0.0.0","hostname":"client.example.com","org":"AS12345 Example ISP"}`,
+			wantOut:  `{"ip":"0.0.0.0","hostname":"REDACTED","org":"AS12345 Example ISP"}`,
+			regex:    hostnameRegex.ReplaceAllString,
+			redactTo: `"hostname":"REDACTED"`,
+		},
+		{
+			name:     "empty string is handled safely by hostname regex",
+			input:    "",
+			wantOut:  "",
+			regex:    hostnameRegex.ReplaceAllString,
+			redactTo: `"hostname":"REDACTED"`,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := tt.regex(tt.input, tt.redactTo)
+			if got != tt.wantOut {
+				t.Errorf("\ngot:  %s\nwant: %s", got, tt.wantOut)
+			}
+		})
+	}
+}
+
+func TestIPRedactionChain(t *testing.T) {
+	tests := []struct {
+		name      string
+		ispInfo   string
+		logs      string
+		wantISP   string
+		wantLogs  string
+	}{
+		{
+			name:     "IPv4 client: addresses and hostname redacted",
+			ispInfo:  `{"ip":"203.0.113.42","hostname":"client.example.com","org":"AS12345 Example ISP"}`,
+			logs:     `connected from 203.0.113.42 and 198.51.100.7`,
+			wantISP:  `{"ip":"0.0.0.0","hostname":"REDACTED","org":"AS12345 Example ISP"}`,
+			wantLogs: `connected from 0.0.0.0 and 0.0.0.0`,
+		},
+		{
+			name:     "IPv6 client: redacted as :: to preserve address family for debugging",
+			ispInfo:  `{"ip":"2001:0db8:85a3:0000:0000:8a2e:0370:7334","hostname":"client.example.com","org":"AS12345 Example ISP"}`,
+			logs:     `connected from 2001:0db8:85a3:0000:0000:8a2e:0370:7334`,
+			wantISP:  `{"ip":"::","hostname":"REDACTED","org":"AS12345 Example ISP"}`,
+			wantLogs: `connected from ::`,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ispInfo := tt.ispInfo
+			logs := tt.logs
+
+			// Mirror the full redaction block in Record()
+			ispInfo = ipv4Regex.ReplaceAllString(ispInfo, "0.0.0.0")
+			logs = ipv4Regex.ReplaceAllString(logs, "0.0.0.0")
+			ispInfo = ipv6Regex.ReplaceAllString(ispInfo, "::")
+			logs = ipv6Regex.ReplaceAllString(logs, "::")
+			ispInfo = hostnameRegex.ReplaceAllString(ispInfo, `"hostname":"REDACTED"`)
+			logs = hostnameRegex.ReplaceAllString(logs, `"hostname":"REDACTED"`)
+
+			if ispInfo != tt.wantISP {
+				t.Errorf("ispInfo\ngot:  %s\nwant: %s", ispInfo, tt.wantISP)
+			}
+			if logs != tt.wantLogs {
+				t.Errorf("logs\ngot:  %s\nwant: %s", logs, tt.wantLogs)
+			}
+		})
+	}
+}

rpm/el7/README.md

@@ -0,0 +1,14 @@
+# librespeedgo-rpm
+
+Librespeedtest Go version package (tested for el7)
+upstream: https://github.com/librespeed/speedtest-go
+
+custom rpmmacro vars:
+* hk_version - define version
+* hk_build - define build
+* godir - change default GOPATH
+
+example:
+```
+rpmbuild -D 'hk_build 3' -D 'hk_version 1.1.3' -D 'godir %{_builddir}/%{name}/.go' -bb SPECS/librespeedgo.spec
+```

rpm/el7/SOURCES/librespeedgo.firewalld

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<service>
+  <short>librespeedgo</short>
+  <description>Libres speedtest service GO-version</description>
+  <port protocol="tcp" port="8989"/>
+</service>

rpm/el7/SOURCES/librespeedgo.mainconfig

@@ -0,0 +1,29 @@
+# bind address, use empty string to bind to all interfaces
+bind_address=""
+# backend listen port
+listen_port=8989
+# proxy protocol port, use 0 to disable
+proxyprotocol_port=0
+# Server location
+server_lat=0
+server_lng=0
+# ipinfo.io API key, if applicable
+ipinfo_api_key=""
+
+# assets directory path, defaults to `assets` in the same directory
+assets_path="/usr/share/librespeedgo/assets"
+
+# password for logging into statistics page
+statistics_password="PASSWORD"
+# redact IP addresses
+redact_ip_addresses=false
+
+# database type for statistics data, currently supports: bolt, mysql, postgresql
+database_type="bolt"
+database_hostname=""
+database_name=""
+database_username=""
+database_password=""
+
+# if you use `bolt` as database, set database_file to database file location
+database_file="/var/lib/librespeedgo/speedtest.db"

rpm/el7/SOURCES/librespeedgo.service

@@ -0,0 +1,29 @@
+[Unit]
+Description=Librespeed speed test
+After=network.target
+
+[Service]
+Type=simple
+User=librespeedgo
+Group=librespeedgo
+WorkingDirectory=/usr/share/librespeedgo/
+ExecStart=/usr/bin/librespeedgo -c /etc/librespeedgo/settings.toml
+
+DevicePolicy=closed
+NoNewPrivileges=yes
+PrivateTmp=yes
+PrivateUsers=yes
+ProtectControlGroups=yes
+ProtectKernelModules=yes
+ProtectKernelTunables=yes
+RestrictNamespaces=yes
+RestrictRealtime=yes
+ReadWritePaths=/var/lib/librespeedgo
+ReadWritePaths=/etc/librespeedgo/settings.toml
+PrivateDevices=yes
+ProtectSystem=strict
+ProtectHome=true
+MemoryDenyWriteExecute=yes
+
+[Install]
+WantedBy=multi-user.target

rpm/el7/SPECS/librespeedgo.spec

@@ -0,0 +1,101 @@
+%global appname		librespeedgo
+%global	debug_package	%{nil} 
+%global __os_install_post %(echo '%{__os_install_post}' | sed -e 's!/usr/lib[^[:space:]]*/brp-.*[[:space:]].*$!!g')
+
+Name:		%{appname}
+Version:	%{hk_version}
+Release:	%{hk_build}%{?dist}
+Summary:	LibreSpeed go-backend server
+
+Group:		Applications/System
+License:	LGPL
+URL:		https://github.com/librespeed/speedtest-go
+Source0:	%{name}.tar.gz
+Source1:	%{name}.mainconfig
+Source2:	%{name}.service
+Source3:	%{name}.firewalld
+
+AutoReq:		no
+AutoProv:		no
+BuildArch:		x86_64
+BuildRequires:	golang >= 1.13
+
+%description
+Very lightweight speed test implemented in Javascript, using XMLHttpRequest and Web Workers.
+
+%prep
+curl -sL 'https://github.com/librespeed/speedtest-go/archive/refs/tags/v%{version}.tar.gz' -o %{_sourcedir}/%{name}.tar.gz
+if [[ -d %{_builddir}/%{name} ]];then
+	chmod 777 -R %{_builddir}/%{name}
+	rm -rf %{_builddir}/%{name}
+fi
+mkdir %{_builddir}/%{name}
+tar xf %{_sourcedir}/%{name}.tar.gz -C %{_builddir}/%{name} --strip-components 1
+cd %{_builddir}/%{name}
+cat << EOF >> %{name}.runtime
+d /var/lib/librespeedgo 0750 librespeedgo librespeedgo
+f /etc/librespeedgo/settings.toml 0640 root librespeedgo
+f /var/lib/librespeedgo/speedtest.db 0640 librespeedgo librespeedgo
+EOF
+cp -a %{SOURCE1} %{SOURCE2} %{SOURCE3} ./
+pushd %{_builddir}/%{name}/assets
+sed -i "s/LibreSpeed Example/LibreSpeed/" *.html
+popd
+
+%build
+pushd %{_builddir}/%{name}
+%if 0%{?godir:1}
+GOPATH=%{godir} go build -ldflags "-w -s" -trimpath -o %{name} main.go
+%else
+go build -ldflags "-w -s" -trimpath -o %{name} main.go
+%endif
+popd
+
+%install
+pushd %{_builddir}/%{name}
+install -D %{name}                     %{buildroot}%{_bindir}/%{name}
+install -Dm644 %{name}.runtime         %{buildroot}%{_sysconfdir}/tmpfiles.d/%{name}.conf
+install -Dm640 %{name}.mainconfig      %{buildroot}%{_sysconfdir}/%{name}/settings.toml
+install -Dm644 %{name}.service         %{buildroot}%{_prefix}/lib/systemd/system/%{name}.service
+install -Dm644 %{name}.firewalld       %{buildroot}%{_prefix}/lib/firewalld/services/%{name}.xml
+install -dm750                         %{buildroot}/var/lib/%{name}
+
+install -d                                                 %{buildroot}/%{_datadir}/%{name}
+cp -r assets                                               %{buildroot}/%{_datadir}/%{name}
+install -m644 database/mysql/telemetry_mysql.sql           %{buildroot}/%{_datadir}/%{name}
+install -m644 database/postgresql/telemetry_postgresql.sql %{buildroot}/%{_datadir}/%{name}
+popd
+
+%files
+%config(noreplace) %{_sysconfdir}/%{name}/settings.toml
+%config(noreplace) %{_prefix}/lib/firewalld/services/%{name}.xml
+%config %{_sysconfdir}/tmpfiles.d/%{name}.conf
+%config %{_prefix}/lib/systemd/system/%{name}.service
+%{_bindir}/%{name}
+%{_datadir}/%{name}
+/var/lib/%{name}
+
+%post
+if [ $1 == 1 ];then
+  if ! getent passwd %{name} > /dev/null; then
+        useradd -r -s /bin/false -m -d /var/lib/%{name} %{name}
+  fi
+  touch /var/lib/%{name}/speedtest.db
+  chown -R %{name}:%{name} /var/lib/%{name}
+  systemctl daemon-reload
+elif [ $1 == 2 ];then
+  chown -R %{name}:%{name} /var/lib/%{name}
+  systemctl daemon-reload
+  if [ $(systemctl is-active --quiet %{name}.service) ];then
+    systemctl restart %{name}.service
+  fi
+fi
+
+%preun
+if [ $1 == 0 ];then
+  if [ $(systemctl is-active --quiet %{name}.service) ];then
+    systemctl stop %{name}.service
+  fi
+fi
+
+%changelog

settings.toml

@@ -2,26 +2,47 @@
 bind_address=""
 # backend listen port
 listen_port=8989
+# change the base URL
+# url_base="/librespeed"
+# proxy protocol port, use 0 to disable
+proxyprotocol_port=0
 # Server location
-server_lat=0
-server_lng=0
+server_lat=1
+server_lng=1
 # ipinfo.io API key, if applicable
 ipinfo_api_key=""
 
 # assets directory path, defaults to `assets` in the same directory
-assets_path="./assets"
+assets_path=""
 
 # password for logging into statistics page
 statistics_password="PASSWORD"
 # redact IP addresses
 redact_ip_addresses=false
 
-# database type for statistics data, currently supports: bolt, mysql, postgresql
-database_type="bolt"
+# database type for statistics data, currently supports: none, memory, bolt, mysql, postgresql, sqlite, mssql
+# if none is specified, no telemetry/stats will be recorded, and no result PNG will be generated
+database_type="memory"
 database_hostname=""
 database_name=""
 database_username=""
 database_password=""
+# database port (optional, defaults to driver default)
+database_port=""
 
 # if you use `bolt` as database, set database_file to database file location
+# if you use `sqlite` as database, set database_file to database file location
 database_file="speedtest.db"
+
+# GeoIP offline database (.mmdb format) for ISP and country detection when ipinfo.io API is not available
+# This is used as a fallback, matching the PHP backend behavior.
+# Leave empty to disable.
+# geoip_database_file="country_asn.mmdb"
+
+# TLS and HTTP/2 settings. TLS is required for HTTP/2
+enable_tls=false
+enable_http2=false
+
+# if you use HTTP/2 or TLS, you need to prepare certificates and private keys
+# tls_cert_file="cert.pem"
+# tls_key_file="privkey.pem"

systemd/README.md

@@ -0,0 +1,28 @@
+# Example systemd unit files
+
+To use these, first review the speedtest.* unit files, and then:
+
+    cp ../speedtest /usr/local/bin/
+    mkdir -p /usr/local/share/speedtest /usr/local/etc
+    cp -aR ../web/assets /usr/local/share/speedtest/assets
+    cp speedtest-settings.toml /usr/local/etc
+    cp speedtest.* /etc/systemd/system/
+    systemctl daemon-reload
+
+If you wish to use the bolt database type:
+
+    # Create static system user and group
+    adduser --system --group --no-create-home --disabled-password speedtest
+    mkdir -p /usr/local/var/speedtest
+    touch /usr/local/var/speedtest/speedtest.db
+    chown speedtest. /usr/local/var/speedtest/speedtest.db
+
+To start (and enable at boot-up):
+
+    systemctl enable --now speedtest.socket
+
+speedtest-go should now be listening for http request on port 80 on the local
+machine.
+
+You will need to customise the html files e.g. edit
+`/usr/local/share/speedtest/assets/index.html` to suit your site.

systemd/speedtest-settings.toml

@@ -0,0 +1,31 @@
+# bind address, use empty string to bind to all interfaces, or when using socket activation
+#bind_address=""
+# backend listen port.  Set this to "" when using socket activation
+listen_port=""
+# proxy protocol port, use 0 to disable
+proxyprotocol_port=0
+# Server location
+server_lat=50.82589
+server_lng=-0.141391
+# ipinfo.io API key, if applicable
+ipinfo_api_key=""
+
+# assets directory path, defaults to `assets` in the same directory
+assets_path="/usr/local/share/speedtest/assets"
+
+# password for logging into statistics page
+statistics_password="PASSWORD"
+# redact IP addresses
+redact_ip_addresses=false
+
+# database type for statistics data, currently supports: none, memory, bolt, mysql, postgresql
+# if none is specified, no telemetry/stats will be recorded, and no result PNG will be generated
+#database_type="bolt"
+database_type="memory"
+database_hostname=""
+database_name=""
+database_username=""
+database_password=""
+
+# if you use `bolt` as database, set database_file to database file location
+database_file="/usr/local/var/speedtest/speedtest.db"

systemd/speedtest.service

@@ -0,0 +1,135 @@
+# Systemd unit file for speedtest-go.  The defaults below are suitable for
+# running all configurations in a medium-security environment.  See comments
+# below for addtional caveats - particularly those labelled "IMPORTANT".
+
+# You can edit this file, or alternatively you may prefer to use systemd's
+# "override" mechanisms, to avoid editing this file e.g. using:
+
+# systemctl edit speedtest.service
+
+[Unit]
+Description=Speedtest-go Server
+After=syslog.target network.target
+
+# Default to using socket activation (see accompanying socket unit file to
+# configure the bind address etc.).
+Requires=speedtest.socket
+After=speedtest.socket
+
+[Service]
+Type=simple
+# The paths to the installed binary and configuration file:
+
+ExecStart=/usr/local/bin/speedtest -c /usr/local/etc/speedtest-settings.toml
+#WorkingDirectory=/usr/local/share/speedtest
+#Restart=always
+#RestartSec=5
+
+# IMPORTANT!
+# If you use a database file (not server), then you will need to disable the
+# DynamicUser setting, and manually create the UNIX user and group specified
+# below, to ensure the file is accessible across multiple invocations of the
+# service.
+DynamicUser=true
+
+# You may prefer to use a different user or group name on your system.
+User=speedtest
+Group=speedtest
+
+
+# The following options will work for all configurations, but are not the
+# most secure, so you are advised to customise them as described below:
+
+# If NOT using socket activation, or if using socket activation AND
+# connecting to an external database server (MySQL, postgres) via TCP:
+RestrictAddressFamilies=AF_INET AF_INET6
+
+# If connecting to an external database via unix domain sockets (MySQL
+# default to this mode of operation):
+RestrictAddressFamilies=AF_UNIX
+
+# If using 'none', 'memory', or 'bolt' database types, and socket activation
+# then the process will not need to bind to any new sockets, so we can remove
+# the earlier AF_UNIX option again.  In systemd versions before 249 this is
+# the only way to say "Restrict the use of all address families":
+RestrictAddressFamilies=AF_UNIX
+RestrictAddressFamilies=~AF_UNIX
+# ...in systemd version 249 and later, we can instead use the much clearer:
+#RestrictAddressFamilies=none
+
+# The following options are available (in systemd v247) to restrict the
+# actions of the speedtest server for reasons of increased security.
+
+# As a whole, the purpose of these are to provide an additional layer of
+# security by mitigating any unknown security vulnerabilities which may exist
+# in speedtest or in the libraries, tools and operating system components
+# which it relies upon.
+
+# IMPORTANT!
+# The following line must be customised to your individual requirements.
+# e.g. if using the 'bolt' in-process database type:
+ReadWritePaths=/usr/local/var/speedtest
+
+# Makes created files group-readable, but inaccessible by others
+UMask=027
+
+# Many of the following options are desribed in the systemd.resource-control(5)
+# manual page.
+
+# The following may be useful in your environment:
+#IPAddressDeny=
+#IPAddressAllow=
+#IPAccounting=true
+#IPIngressFilterPath=
+#SocketBindAllow=
+
+# If your system doesn't support all of the features below (e.g. because of
+# the use of a version of systemd older than 247), you may need to comment-out
+# some of the following lines.
+
+# n.b. It may be possible to further restrict speedtest, but this is a good
+# start, and will guard against many potential zero-day vulnerabilities.
+
+# See the output of `systemd-analyze security speedtest.service` for further
+# opportunities.  Patches welcome!
+
+CapabilityBoundingSet=
+LockPersonality=true
+MemoryDenyWriteExecute=true
+NoNewPrivileges=yes
+PrivateTmp=yes
+PrivateDevices=true
+PrivateUsers=true
+ProtectSystem=strict
+ProtectHome=yes
+ProtectClock=true
+ProtectControlGroups=true
+ProtectKernelLogs=true
+ProtectKernelModules=true
+ProtectKernelTunables=true
+ProtectProc=invisible
+ProtectHostname=true
+RemoveIPC=true
+RestrictNamespaces=true
+RestrictSUIDSGID=true
+RestrictRealtime=true
+SystemCallArchitectures=native
+SystemCallFilter=@system-service
+
+# Additionally, you may wish to use some of the systemd options documented in
+# systemd.resource-control(5) to limit the CPU, memory, file-system I/O and
+# network I/O that the speedtest server is permitted to consume according to
+# the individual requirements of your installation.
+
+#CPUQuota=25%
+#MemoryMax=bytes
+#MemorySwapMax=bytes
+#TasksMax=N
+#IOReadBandwidthMax=device bytes
+#IOWriteBandwidthMax=device bytes
+#IOReadIOPSMax=device IOPS, IOWriteIOPSMax=device IOPS
+#IPAccounting=true
+#IPAddressAllow=
+
+[Install]
+WantedBy=multi-user.target

systemd/speedtest.socket

@@ -0,0 +1,11 @@
+# Socket listener systemd unit file for speedtest-go.  See the
+# systemd.socket(5) manual page for many more options.
+[Unit]
+Description=Speedtest Web Server (http port 80) Socket
+
+[Socket]
+ListenStream=80
+Accept=no
+
+[Install]
+WantedBy=sockets.target

web/assets/design-switch.js

@@ -0,0 +1,45 @@
+/**
+ * Feature switch for enabling the new LibreSpeed design
+ *
+ * This script checks for:
+ * 1. URL parameter: ?design=new or ?design=old
+ * 2. Default behavior: Shows the classic design
+ *
+ * Note: This script is only loaded on the root index.html
+ */
+(function () {
+    'use strict';
+
+    // Don't run this script if we're already on a specific design page
+    const currentPath = window.location.pathname;
+    if (currentPath.includes('index-classic.html') || currentPath.includes('index-modern.html')) {
+        return;
+    }
+
+    // Check URL parameters first
+    const urlParams = new URLSearchParams(window.location.search);
+    const designParam = urlParams.get('design');
+
+    if (designParam === 'new') {
+        redirectToNewDesign();
+        return;
+    }
+
+    if (designParam === 'old' || designParam === 'classic') {
+        redirectToOldDesign();
+        return;
+    }
+
+    // Default to classic design
+    redirectToOldDesign();
+
+    function redirectToNewDesign() {
+        const currentParams = window.location.search;
+        window.location.href = 'index-modern.html' + currentParams;
+    }
+
+    function redirectToOldDesign() {
+        const currentParams = window.location.search;
+        window.location.href = 'index-classic.html' + currentParams;
+    }
+})();

web/assets/example-multipleServers-full.html

@@ -10,21 +10,21 @@ function I(i){return document.getElementById(i);}
 
 //LIST OF TEST SERVERS. See documentation for details if needed
 var SPEEDTEST_SERVERS=[
-	{	//this is my demo server, remove it
-		name:"Speedtest Demo Server (Helsinki)", //user friendly name for the server
-		server:"//fi.openspeed.org/", //URL to the server. // at the beginning will be replaced with http:// or https:// automatically
-		dlURL:"garbage",  //path to download test on this server (garbage.php or replacement)
-		ulURL:"empty",  //path to upload test on this server (empty.php or replacement)
-		pingURL:"empty",  //path to ping/jitter test on this server (empty.php or replacement)
-		getIpURL:"getIP"  //path to getIP on this server (getIP.php or replacement)
+	{	//this server doesn't actually exist, remove it
+		name:"Example Server 1", //user friendly name for the server
+		server:"//test1.mydomain.com/", //URL to the server. // at the beginning will be replaced with http:// or https:// automatically
+		dlURL:"backend/garbage.php",  //path to download test on this server (garbage.php or replacement)
+		ulURL:"backend/empty.php",  //path to upload test on this server (empty.php or replacement)
+		pingURL:"backend/empty.php",  //path to ping/jitter test on this server (empty.php or replacement)
+		getIpURL:"backend/getIP.php"  //path to getIP on this server (getIP.php or replacement)
 	},
-	{	//this is my demo server, remove it
-		name:"Old Speedtest Demo Server",
-		server:"//mpotdemo.fdossena.com/",
-		dlURL:"garbage",
-		ulURL:"empty",
-		pingURL:"empty",
-		getIpURL:"getIP"
+	{	//this server doesn't actually exist, remove it
+		name:"Example Server 2", //user friendly name for the server
+		server:"//test2.example.com/", //URL to the server. // at the beginning will be replaced with http:// or https:// automatically
+		dlURL:"garbage.php",  //path to download test on this server (garbage.php or replacement)
+		ulURL:"empty.php",  //path to upload test on this server (empty.php or replacement)
+		pingURL:"empty.php",  //path to ping/jitter test on this server (empty.php or replacement)
+		getIpURL:"getIP.php"  //path to getIP on this server (getIP.php or replacement)
 	}
 	//add other servers here, comma separated
 ];
@@ -32,10 +32,13 @@ var SPEEDTEST_SERVERS=[
 //INITIALIZE SPEEDTEST
 var s=new Speedtest(); //create speedtest object
 s.setParameter("telemetry_level","basic"); //enable telemetry
-s.addTestPoints(SPEEDTEST_SERVERS); //add list of servers
 
 //SERVER AUTO SELECTION
 function initServers(){
+    var noServersAvailable=function(){
+        I("message").innerHTML="No servers available";
+    }
+    var runServerSelect=function(){
         s.selectServer(function(server){
             if(server!=null){ //at least 1 server is available
                 I("loading").className="hidden"; //hide loading message
@@ -52,9 +55,25 @@ function initServers(){
                 I("testWrapper").className="visible";
                 initUI();
             }else{ //no servers are available, the test cannot proceed
-			I("message").innerHTML="No servers available";
+                noServersAvailable();
             }
         });
+    }
+    if(typeof SPEEDTEST_SERVERS === "string"){
+        //need to fetch list of servers from specified URL
+        s.loadServerList(SPEEDTEST_SERVERS,function(servers){
+            if(servers==null){ //failed to load server list
+                noServersAvailable();
+            }else{ //server list loaded
+                SPEEDTEST_SERVERS=servers;
+                runServerSelect();
+            }
+        });
+    }else{
+        //hardcoded server list
+        s.addTestPoints(SPEEDTEST_SERVERS);
+        runServerSelect();
+    }
 }
 
 var meterBk=/Trident.*rv:(\d+\.\d+)/i.test(navigator.userAgent)?"#EAEAEA":"#80808040";
@@ -333,7 +352,14 @@ function initUI(){
         text-align:center;
         font-size:0.8em;
         color:#808080;
-        display:block;
+        padding: 0 3em;
+	}
+    div.closePrivacyPolicy {
+        width: 100%;
+        text-align: center;
+    }
+    div.closePrivacyPolicy a.privacy {
+        padding: 1em 3em;
     }
 	@media all and (max-width:40em){
 		body{
@@ -375,7 +401,7 @@ function initUI(){
 	<p id="message"><span class="loadCircle"></span>Selecting a server...</p>
 </div>
 <div id="testWrapper" class="hidden">
-	<div id="startStopBtn" onclick="startStop()"></div>
+	<div id="startStopBtn" onclick="startStop()"></div><br/>
 	<a class="privacy" href="#" onclick="I('privacyPolicy').style.display=''">Privacy</a>
 	<div id="serverArea">
 		Server: <select id="server" onchange="s.setSelectedServer(SPEEDTEST_SERVERS[this.value])"></select>
@@ -398,13 +424,13 @@ function initUI(){
 				<div class="testName">Download</div>
 				<canvas id="dlMeter" class="meter"></canvas>
 				<div id="dlText" class="meterText"></div>
-				<div class="unit">Mbit/s</div>
+				<div class="unit">Mbps</div>
 			</div>
 			<div class="testArea">
 				<div class="testName">Upload</div>
 				<canvas id="ulMeter" class="meter"></canvas>
 				<div id="ulText" class="meterText"></div>
-				<div class="unit">Mbit/s</div>
+				<div class="unit">Mbps</div>
 			</div>
 		</div>
 		<div id="ipArea">
@@ -455,7 +481,10 @@ function initUI(){
         Contact this email address for all deletion requests: <a href="mailto:PUT@YOUR_EMAIL.HERE">TO BE FILLED BY DEVELOPER</a>.
     </p>
     <br/><br/>
-    <a class="privacy" href="#" onclick="I('privacyPolicy').style.display='none'">Close</a><br/>
+    <div class="closePrivacyPolicy">
+        <a class="privacy" href="#" onclick="I('privacyPolicy').style.display='none'">Close</a>
+    </div>
+    <br/>
 </div>
 </body>
 </html>

web/assets/example-multipleServers-pretty.html

@@ -10,21 +10,21 @@
 
 //LIST OF TEST SERVERS. See documentation for details if needed
 var SPEEDTEST_SERVERS=[
-	{	//this is my demo server, remove it
-		name:"Speedtest Demo Server (Helsinki)", //user friendly name for the server
-		server:"//fi.openspeed.org/", //URL to the server. // at the beginning will be replaced with http:// or https:// automatically
-		dlURL:"garbage",  //path to download test on this server (garbage.php or replacement)
-		ulURL:"empty",  //path to upload test on this server (empty.php or replacement)
-		pingURL:"empty",  //path to ping/jitter test on this server (empty.php or replacement)
-		getIpURL:"getIP"  //path to getIP on this server (getIP.php or replacement)
+	{	//this server doesn't actually exist, remove it
+		name:"Example Server 1", //user friendly name for the server
+		server:"//test1.mydomain.com/", //URL to the server. // at the beginning will be replaced with http:// or https:// automatically
+		dlURL:"backend/garbage.php",  //path to download test on this server (garbage.php or replacement)
+		ulURL:"backend/empty.php",  //path to upload test on this server (empty.php or replacement)
+		pingURL:"backend/empty.php",  //path to ping/jitter test on this server (empty.php or replacement)
+		getIpURL:"backend/getIP.php"  //path to getIP on this server (getIP.php or replacement)
 	},
-	{	//this is my demo server, remove it
-		name:"Old Speedtest Demo Server",
-		server:"//mpotdemo.fdossena.com/",
-		dlURL:"garbage",
-		ulURL:"empty",
-		pingURL:"empty",
-		getIpURL:"getIP"
+	{	//this server doesn't actually exist, remove it
+		name:"Example Server 2", //user friendly name for the server
+		server:"//test2.example.com/", //URL to the server. // at the beginning will be replaced with http:// or https:// automatically
+		dlURL:"garbage.php",  //path to download test on this server (garbage.php or replacement)
+		ulURL:"empty.php",  //path to upload test on this server (empty.php or replacement)
+		pingURL:"empty.php",  //path to ping/jitter test on this server (empty.php or replacement)
+		getIpURL:"getIP.php"  //path to getIP on this server (getIP.php or replacement)
 	}
 	//add other servers here, comma separated
 ];
@@ -32,7 +32,7 @@ var SPEEDTEST_SERVERS=[
 
 //INITIALIZE SPEEDTEST
 var s=new Speedtest(); //create speedtest object
-s.addTestPoints(SPEEDTEST_SERVERS); //add list of servers
+
 s.onupdate=function(data){ //callback to update data in UI
     I("ip").textContent=data.clientIp;
     I("dlText").textContent=(data.testState==1&&data.dlStatus==0)?"...":data.dlStatus;
@@ -46,13 +46,33 @@ s.onend=function(aborted){ //callback for test ended/aborted
 		initUI();
     }
 }
-function selectServer(){ //called when the page is fully loaded
-    I("startStopBtn").style.display="none"; //hide start/stop button during server selection
+function selectServer(){ //called after loading server list
     s.selectServer(function(server){ //run server selection. When the server has been selected, display it in the UI
+        if(server==null){
+            I("serverId").textContent="No servers available";
+        }else{
             I("startStopBtn").style.display=""; //show start/stop button again
             I("serverId").textContent=server.name; //show name of test server
+        }
     });
 }
+function loadServers(){ //called when the page is fully loaded
+    I("startStopBtn").style.display="none"; //hide start/stop button during server selection
+    if(typeof SPEEDTEST_SERVERS === "string"){
+        //load servers from url
+        s.loadServerList(SPEEDTEST_SERVERS,function(servers){
+            //list loaded
+            SPEEDTEST_SERVERS=servers;
+            selectServer();
+        });
+    }else{
+        //hardcoded list of servers, already loaded
+        s.addTestPoints(SPEEDTEST_SERVERS);
+        selectServer();
+    }
+    
+}
+
 
 
 function startStop(){ //start/stop button pressed
@@ -192,12 +212,12 @@ function I(id){return document.getElementById(id);}
 		<div class="testArea">
 			<div class="testName">Download</div>
 			<div id="dlText" class="meterText"></div>
-			<div class="unit">Mbit/s</div>
+			<div class="unit">Mbps</div>
 		</div>
 		<div class="testArea">
 			<div class="testName">Upload</div>
 			<div id="ulText" class="meterText"></div>
-			<div class="unit">Mbit/s</div>
+			<div class="unit">Mbps</div>
 		</div>
 	</div>
 	<div class="testGroup">
@@ -219,7 +239,7 @@ function I(id){return document.getElementById(id);}
 <a href="https://github.com/librespeed/speedtest">Source code</a>
 <script type="text/javascript">
     initUI();
-    selectServer();
+    loadServers();
 </script>
 </body>
 </html>

web/assets/example-singleServer-customSettings.html

@@ -157,12 +157,12 @@ function I(id){return document.getElementById(id);}
 		<div class="testArea">
 			<div class="testName">Download</div>
 			<div id="dlText" class="meterText"></div>
-			<div class="unit">Mbit/s</div>
+			<div class="unit">Mbps</div>
 		</div>
 		<div class="testArea">
 			<div class="testName">Upload</div>
 			<div id="ulText" class="meterText"></div>
-			<div class="unit">Mbit/s</div>
+			<div class="unit">Mbps</div>
 		</div>
 	</div>
 </div>

web/assets/example-singleServer-gauges.html

@@ -242,13 +242,13 @@ function initUI(){
 				<div class="testName">Download</div>
 				<canvas id="dlMeter" class="meter"></canvas>
 				<div id="dlText" class="meterText"></div>
-				<div class="unit">Mbit/s</div>
+				<div class="unit">Mbps</div>
 			</div>
 			<div class="testArea">
 				<div class="testName">Upload</div>
 				<canvas id="ulMeter" class="meter"></canvas>
 				<div id="ulText" class="meterText"></div>
-				<div class="unit">Mbit/s</div>
+				<div class="unit">Mbps</div>
 			</div>
 		</div>
 		<div id="ipArea">

web/assets/example-singleServer-pretty.html

@@ -160,12 +160,12 @@ function I(id){return document.getElementById(id);}
 		<div class="testArea">
 			<div class="testName">Download</div>
 			<div id="dlText" class="meterText"></div>
-			<div class="unit">Mbit/s</div>
+			<div class="unit">Mbps</div>
 		</div>
 		<div class="testArea">
 			<div class="testName">Upload</div>
 			<div id="ulText" class="meterText"></div>
-			<div class="unit">Mbit/s</div>
+			<div class="unit">Mbps</div>
 		</div>
 	</div>
 	<div class="testGroup">

web/assets/example-singleServer-progressBar.html

@@ -180,12 +180,12 @@ function I(id){return document.getElementById(id);}
 		<div class="testArea">
 			<div class="testName">Download</div>
 			<div id="dlText" class="meterText"></div>
-			<div class="unit">Mbit/s</div>
+			<div class="unit">Mbps</div>
 		</div>
 		<div class="testArea">
 			<div class="testName">Upload</div>
 			<div id="ulText" class="meterText"></div>
-			<div class="unit">Mbit/s</div>
+			<div class="unit">Mbps</div>
 		</div>
 	</div>
 	<div class="testGroup">

web/assets/images/chevron.svg

@@ -0,0 +1,22 @@
+<svg
+    width="32"
+    height="32"
+    viewBox="0 0 32 32"
+    fill="none"
+    xmlns="http://www.w3.org/2000/svg"
+>
+    <g clip-path="url(#clip0_373_537)">
+        <path
+            d="M26 12L16 22L6 12"
+            stroke="#625B6B"
+            stroke-width="1.5"
+            stroke-linecap="round"
+            stroke-linejoin="round"
+        />
+    </g>
+    <defs>
+        <clipPath id="clip0_373_537">
+            <rect width="32" height="32" fill="white" />
+        </clipPath>
+    </defs>
+</svg>

web/assets/images/close-button.svg

@@ -0,0 +1,14 @@
+<svg width="32" height="32" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg">
+    <g clip-path="url(#clip0_373_731)">
+        <path d="M25 7L7 25" stroke="#F5F5F5" stroke-width="2" stroke-linecap="round"
+            stroke-linejoin="round" />
+        <path d="M25 25L7 7" stroke="#F5F5F5" stroke-width="2" stroke-linecap="round"
+            stroke-linejoin="round" />
+    </g>
+    <defs>
+        <clipPath id="clip0_373_731">
+            <rect width="32" height="32" fill="white" />
+        </clipPath>
+    </defs>
+</svg>
+    

web/assets/images/favicon.svg

@@ -0,0 +1,19 @@
+<svg width="19" height="18" viewBox="0 0 19 18" fill="none" xmlns="http://www.w3.org/2000/svg">
+    <path
+        d="M16.0345 0.123047H3.20289C1.88703 0.123047 0.820312 1.18976 0.820312 2.50562V15.3373C0.820312 16.6531 1.88703 17.7198 3.20289 17.7198H16.0345C17.3504 17.7198 18.4171 16.6531 18.4171 15.3373V2.50562C18.4171 1.18976 17.3504 0.123047 16.0345 0.123047Z"
+        fill="#F5F5F5" />
+    <path
+        d="M17.1947 2.38135H3.55467L3.42638 9.32426L8.84467 9.49601L8.25888 9.99686L2.04297 15.4616L16.3914 15.3137V8.62233L10.1332 7.52898L17.1947 2.38135Z"
+        fill="url(#paint0_linear_373_542)" />
+    <defs>
+        <linearGradient id="paint0_linear_373_542" x1="2.04297" y1="8.92149" x2="17.1947"
+            y2="8.92149" gradientUnits="userSpaceOnUse">
+            <stop stop-color="#D63BC6" />
+            <stop offset="0.3478" stop-color="#7419B1" />
+            <stop offset="0.5389" stop-color="#3D06A5" />
+            <stop offset="0.7532" stop-color="#485DC4" />
+            <stop offset="1" stop-color="#5CF9FD" />
+        </linearGradient>
+    </defs>
+</svg>
+    

web/assets/images/logo.svg

@@ -0,0 +1,66 @@
+<svg
+    width="153"
+    height="18"
+    viewBox="0 0 153 18"
+    fill="none"
+    xmlns="http://www.w3.org/2000/svg"
+    class="logo"
+>
+    <path
+        d="M87.0345 0.123047H74.2029C72.887 0.123047 71.8203 1.18976 71.8203 2.50562V15.3373C71.8203 16.6531 72.887 17.7198 74.2029 17.7198H87.0345C88.3504 17.7198 89.4171 16.6531 89.4171 15.3373V2.50562C89.4171 1.18976 88.3504 0.123047 87.0345 0.123047Z"
+        fill="#F5F5F5"
+    />
+    <path
+        d="M88.1947 2.38135H74.5547L74.4264 9.32426L79.8447 9.49601L79.2589 9.99686L73.043 15.4616L87.3914 15.3137V8.62233L81.1332 7.52898L88.1947 2.38135Z"
+        fill="url(#paint0_linear_373_540)"
+    />
+    <path
+        d="M0 17.4134V0H3.68171V14.378H11.1473V17.4134H0Z"
+        fill="#F5F5F5"
+    />
+    <path d="M17.2686 0V17.4134H13.5869V0H17.2686Z" fill="#F5F5F5" />
+    <path
+        d="M20.3038 17.4134V0H27.2761C28.5572 0 29.6258 0.189989 30.4818 0.569601C31.3374 0.94958 31.9808 1.47506 32.4117 2.14682C32.8425 2.81857 33.058 3.59104 33.058 4.46387C33.058 5.14385 32.9218 5.74068 32.6497 6.25365C32.3776 6.76661 32.0048 7.18598 31.5317 7.51218C31.0582 7.83802 30.5183 8.06886 29.9118 8.20508V8.37499C30.5749 8.40366 31.1972 8.59042 31.7783 8.93633C32.3593 9.28225 32.8311 9.76544 33.1938 10.3859C33.5566 11.0068 33.7379 11.7452 33.7379 12.6008C33.7379 13.5249 33.51 14.3483 33.0536 15.0709C32.5973 15.7936 31.9242 16.365 31.0341 16.7844C30.144 17.2038 29.0475 17.4135 27.7438 17.4135L20.3038 17.4134ZM23.9855 7.28666H26.7148C27.2195 7.28666 27.6686 7.19739 28.0626 7.01889C28.4565 6.84039 28.7684 6.58661 28.9978 6.25791C29.2276 5.92921 29.3423 5.53524 29.3423 5.07609C29.3423 4.44666 29.1197 3.93942 28.6748 3.55408C28.2296 3.16874 27.5991 2.97589 26.7829 2.97589H23.9855V7.28666ZM23.9855 14.4034H26.9869C28.0127 14.4034 28.7612 14.2067 29.2319 13.8123C29.7021 13.4184 29.9373 12.8929 29.9373 12.2351C29.9373 11.7534 29.8212 11.3282 29.5889 10.9597C29.3563 10.5913 29.0261 10.3023 28.5981 10.0926C28.1701 9.88294 27.6615 9.77792 27.0722 9.77792H23.9855L23.9855 14.4034Z"
+        fill="#F5F5F5"
+    />
+    <path
+        d="M36.127 17.4134V0H42.9971C44.3123 0 45.436 0.233706 46.3684 0.701485C47.3011 1.1689 48.0123 1.82953 48.5027 2.68232C48.993 3.5358 49.2382 4.53769 49.2382 5.68834C49.2382 6.84472 48.9887 7.83798 48.4901 8.66853C47.9911 9.4987 47.2699 10.135 46.3261 10.5773C45.3823 11.0193 44.2413 11.2404 42.9036 11.2404H38.3039V8.28139H42.3086C43.0115 8.28139 43.5955 8.18533 44.06 7.99248C44.5249 7.79963 44.8723 7.51071 45.1017 7.12501C45.3315 6.73967 45.4462 6.26077 45.4462 5.68831C45.4462 5.11011 45.3315 4.62262 45.1017 4.2258C44.8723 3.82897 44.5235 3.52717 44.0557 3.31997C43.5883 3.11313 43.0001 3.00992 42.2917 3.00992H39.8087V17.4134L36.127 17.4134ZM45.531 9.48901L49.859 17.4134H45.7945L41.5604 9.48901H45.531Z"
+        fill="#F5F5F5"
+    />
+    <path
+        d="M51.8398 17.4134V0H63.5735V3.03539H55.5216V7.18451H62.9699V10.2203H55.5216V14.378H63.6076V17.4134L51.8398 17.4134Z"
+        fill="#F5F5F5"
+    />
+    <path
+        d="M92.8662 17.4134V0H99.7364C101.058 0 102.182 0.250554 103.112 0.752396C104.042 1.25387 104.752 1.94857 105.242 2.83538C105.733 3.72256 105.978 4.74452 105.978 5.90091C105.978 7.05729 105.728 8.07745 105.229 8.96177C104.73 9.84609 104.009 10.5347 103.066 11.0279C102.122 11.5212 100.981 11.7677 99.6432 11.7677H95.2643V8.8173H99.0481C99.7564 8.8173 100.341 8.694 100.804 8.44737C101.266 8.20075 101.612 7.85773 101.841 7.41862C102.071 6.97914 102.185 6.47337 102.185 5.90091C102.185 5.32272 102.071 4.81658 101.841 4.38319C101.612 3.94948 101.264 3.61215 100.8 3.37129C100.335 3.13042 99.745 3.00995 99.0309 3.00995H96.5482V17.4134H92.8662Z"
+        fill="#F5F5F5"
+    />
+    <path
+        d="M108.375 17.4134V0H120.109V3.03539H112.057V7.18451H119.505V10.2203H112.057V14.378H120.143V17.4134L108.375 17.4134Z"
+        fill="#F5F5F5"
+    />
+    <path
+        d="M123.042 17.4134V0H134.776V3.03539H126.723V7.18451H134.172V10.2203H126.723V14.378H134.809V17.4134L123.042 17.4134Z"
+        fill="#F5F5F5"
+    />
+    <path
+        d="M143.882 17.4134H137.709V0H143.933C145.685 0 147.192 0.34698 148.457 1.04131C149.721 1.736 150.694 2.73213 151.378 4.03012C152.06 5.32844 152.402 6.88165 152.402 8.68967C152.402 10.5035 152.06 12.0624 151.378 13.3661C150.694 14.6698 149.716 15.6702 148.444 16.3674C147.171 17.0647 145.651 17.4134 143.882 17.4134ZM141.391 14.259H143.729C144.817 14.259 145.734 14.0647 146.48 13.6765C147.225 13.2883 147.787 12.6847 148.163 11.8652C148.54 11.0465 148.729 9.98763 148.729 8.68963C148.729 7.40276 148.54 6.35143 148.163 5.53521C147.787 4.71865 147.227 4.11788 146.484 3.73254C145.741 3.34721 144.826 3.15435 143.737 3.15435H141.391L141.391 14.259Z"
+        fill="#F5F5F5"
+    />
+    <defs>
+        <linearGradient
+            id="paint0_linear_373_540"
+            x1="73.043"
+            y1="8.92149"
+            x2="88.1947"
+            y2="8.92149"
+            gradientUnits="userSpaceOnUse"
+        >
+            <stop stop-color="#D63BC6" />
+            <stop offset="0.3478" stop-color="#7419B1" />
+            <stop offset="0.5389" stop-color="#3D06A5" />
+            <stop offset="0.7532" stop-color="#485DC4" />
+            <stop offset="1" stop-color="#5CF9FD" />
+        </linearGradient>
+    </defs>
+</svg>

web/assets/index-classic.html

@@ -3,23 +3,13 @@
 <head>
 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, user-scalable=no" />
 <meta charset="UTF-8" />
-<link rel="shortcut icon" href="../../favicon.ico">
+<link rel="shortcut icon" href="favicon.ico">
 <script type="text/javascript" src="speedtest.js"></script>
 <script type="text/javascript">
 function I(i){return document.getElementById(i);}
 //INITIALIZE SPEEDTEST
 var s=new Speedtest(); //create speedtest object
 s.setParameter("telemetry_level","basic"); //enable telemetry
-s.setParameter("url_telemetry", "results/telemetry");
-var server = {
-	name: "demo",
-	server:window.location.protocol + "//" + window.location.host,
-	dlURL:"garbage",
-	ulURL:"empty",
-	pingURL:"empty",
-	getIpURL:"getIP",
-};
-s.setSelectedServer(server);
 
 var meterBk=/Trident.*rv:(\d+\.\d+)/i.test(navigator.userAgent)?"#EAEAEA":"#80808040";
 var dlColor="#6060AA",
@@ -268,7 +258,14 @@ function initUI(){
         text-align:center;
         font-size:0.8em;
         color:#808080;
-        display:block;
+        padding: 0 3em;
+    }
+    div.closePrivacyPolicy {
+        width: 100%;
+        text-align: center;
+    }
+    div.closePrivacyPolicy a.privacy {
+        padding: 1em 3em;
     }
 	@media all and (max-width:40em){
 		body{
@@ -301,13 +298,13 @@ function initUI(){
 				<div class="testName">Download</div>
 				<canvas id="dlMeter" class="meter"></canvas>
 				<div id="dlText" class="meterText"></div>
-				<div class="unit">Mbit/s</div>
+				<div class="unit">Mbps</div>
 			</div>
 			<div class="testArea">
 				<div class="testName">Upload</div>
 				<canvas id="ulMeter" class="meter"></canvas>
 				<div id="ulText" class="meterText"></div>
-				<div class="unit">Mbit/s</div>
+				<div class="unit">Mbps</div>
 			</div>
 		</div>
 		<div id="ipArea">
@@ -358,7 +355,10 @@ function initUI(){
         Contact this email address for all deletion requests: <a href="mailto:PUT@YOUR_EMAIL.HERE">TO BE FILLED BY DEVELOPER</a>.
     </p>
     <br/><br/>
-    <a class="privacy" href="#" onclick="I('privacyPolicy').style.display='none'">Close</a><br/>
+    <div class="closePrivacyPolicy">
+        <a class="privacy" href="#" onclick="I('privacyPolicy').style.display='none'">Close</a>
+    </div>
+    <br/>
 </div>
 <script type="text/javascript">setTimeout(function(){initUI()},100);</script>
 </body>

web/assets/index-modern.html

@@ -0,0 +1,152 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
+  <meta name="description"
+    content="Free and Open Source Speedtest. Run it right now in your browser, or self-host on a PHP, Golang, Rust or Node server. License: LGPL." />
+  <link rel="shortcut icon" href="images/favicon.svg" />
+  <script type="text/javascript" src="speedtest.js"></script>
+  <script type="text/javascript">
+    // Set this to a different URL to load the server list from another location.
+    var SPEEDTEST_SERVERS = "server-list.json";
+  </script>
+  <script type="text/javascript" src="javascript/index.js"></script>
+  <link rel="stylesheet" type="text/css" href="styling/index.css" />
+  <title>LibreSpeed - Free and Open Source Speedtest</title>
+</head>
+
+<body>
+  <header>
+    <img src="images/logo.svg" alt="LibreSpeed" />
+  </header>
+  <main>
+    <h1>Free and Open Source Speedtest.</h1>
+    <p class="tagline">No Flash, No Java, No Websockets, No Bullsh*t</p>
+
+    <div class="server-selector">
+      <div class="chosen">
+        <div class="chevron">
+          <img src="images/chevron.svg" alt="select..." />
+        </div>
+        <p>current server</p>
+        <h2 id="selected-server">searching nearest server...</h2>
+      </div>
+      <ul class="servers"></ul>
+      <p class="sponsor" id="sponsor">&nbsp;</p>
+    </div>
+
+    <p id="privacy-warning" class="hidden">
+      by clicking the start button you agree to our privacy policy<br />
+      <a href="#" id="choose-privacy">or choose your privacy options</a>
+    </p>
+    <button class="disabled" id="start-button"></button>
+
+    <div class="gauge-layout">
+      <div class="ping hidden">
+        <span class="label">Ping</span>:&nbsp;
+        <span class="value" id="ping">00</span>ms
+      </div>
+
+      <div class="gauge download" id="download-gauge">
+        <div class="progress"></div>
+        <div class="speed"></div>
+        <h1><span id="download-speed">00</span> Mbps</h1>
+        <h2>Download</h2>
+      </div>
+
+      <div class="gauge upload" id="upload-gauge">
+        <div class="progress"></div>
+        <div class="speed"></div>
+        <h1><span id="upload-speed">00</span> Mbps</h1>
+        <h2>Upload</h2>
+      </div>
+
+      <div class="jitter hidden">
+        <span class="label">Jitter</span>:&nbsp;
+        <span class="value" id="jitter">00</span>ms
+      </div>
+    </div>
+
+    <button class="small inverted hidden" id="share-results">
+      Share results
+    </button>
+  </main>
+  <footer>
+    <p class="source">
+      <a href="https://github.com/librespeed/speedtest">source code</a>
+    </p>
+  </footer>
+
+  <dialog id="share">
+    <div class="close-dialog">
+      <img src="images/close-button.svg" alt="Close" />
+    </div>
+    <img id="results" src="" alt="Test results in graphical form" />
+    <button id="copy-link">Copy link</button>
+  </dialog>
+
+  <dialog id="privacy">
+    <div class="close-dialog">
+      <img src="images/close-button.svg" alt="Close" />
+    </div>
+    <section>
+      <h1>Privacy Policy</h1>
+      <p>
+        This HTML5 speed test server is configured with telemetry enabled.
+      </p>
+
+      <h2>What data we collect</h2>
+      <p>
+        At the end of the test, the following data is collected and stored:
+      </p>
+
+      <ul>
+        <li>Test ID</li>
+        <li>Time of testing</li>
+        <li>Test results (download and upload speed, ping and jitter)</li>
+        <li>IP address</li>
+        <li>ISP information</li>
+        <li>Approximate location (inferred from IP address, not GPS)</li>
+        <li>User agent and browser locale</li>
+        <li>Test log (contains no personal information)</li>
+      </ul>
+
+      <h2>How we use the data</h2>
+      <p>Data collected through this service is used to:</p>
+
+      <ul>
+        <li>
+          Allow sharing of test results (sharable image for forums, etc.)
+        </li>
+        <li>
+          To improve the service offered to you (for instance, to detect
+          problems on our side)
+        </li>
+      </ul>
+
+      <p>No personal information is disclosed to third parties.</p>
+
+      <h2>Your consent</h2>
+      <p>
+        By starting the test, you consent to the terms of this privacy policy.
+      </p>
+
+      <h2>Data removal</h2>
+      <p>
+        If you want to have your information deleted, you need to provide
+        either the ID of the test or your IP address. This is the only way to
+        identify your data, without this information we won't be able to
+        comply with your request.
+      </p>
+      <p>
+        Contact this email address for all deletion requests:
+        <a href="mailto:PUT@YOUR_EMAIL.HERE">TO BE FILLED BY DEVELOPER</a>.
+      </p>
+    </section>
+    <button id="close-privacy">Close</button>
+  </dialog>
+</body>
+
+</html>

web/assets/index.html

@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <link rel="shortcut icon" href="favicon.ico">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, user-scalable=no" />
+    <meta charset="UTF-8" />
+    <script type="text/javascript" src="design-switch.js"></script>
+    <title>LibreSpeed</title>
+</head>
+
+<body>
+    <p>Loading...</p>
+</body>
+
+</html>

web/assets/javascript/index.js

@@ -0,0 +1,447 @@
+/**
+ * Design by fromScratch Studio - 2022, 2023 (fromscratch.io)
+ * Implementation in HTML/CSS/JS by Timendus - 2024 (https://github.com/Timendus)
+ *
+ * See https://github.com/librespeed/speedtest/issues/585
+ */
+
+// States the UI can be in
+const INITIALIZING = 0;
+const READY = 1;
+const RUNNING = 2;
+const FINISHED = 3;
+
+// Keep some global state here
+const testState = {
+  state: INITIALIZING,
+  speedtest: null,
+  servers: [],
+  selectedServerDirty: false,
+  testData: null,
+  testDataDirty: false,
+  telemetryEnabled: false,
+};
+
+// Bootstrap the application when the DOM is ready
+window.addEventListener("DOMContentLoaded", async () => {
+  createSpeedtest();
+  hookUpButtons();
+  startRenderingLoop();
+  applySettingsJSON();
+  applyServerListJSON();
+});
+
+/**
+ * Create a new Speedtest and hook it into the global state
+ */
+function createSpeedtest() {
+  testState.speedtest = new Speedtest();
+  testState.speedtest.onupdate = (data) => {
+    testState.testData = data;
+    testState.testDataDirty = true;
+  };
+  testState.speedtest.onend = (aborted) =>
+    (testState.state = aborted ? READY : FINISHED);
+}
+
+/**
+ * Make all the buttons respond to the right clicks
+ */
+function hookUpButtons() {
+  document
+    .querySelector("#start-button")
+    .addEventListener("click", startButtonClickHandler);
+  document
+    .querySelector("#choose-privacy")
+    .addEventListener("click", () =>
+      document.querySelector("#privacy").showModal()
+    );
+  document
+    .querySelector("#share-results")
+    .addEventListener("click", () =>
+      document.querySelector("#share").showModal()
+    );
+  document
+    .querySelector("#copy-link")
+    .addEventListener("click", copyLinkButtonClickHandler);
+  document
+    .querySelectorAll(".close-dialog, #close-privacy")
+    .forEach((element) => {
+      element.addEventListener("click", () =>
+        document.querySelectorAll("dialog").forEach((modal) => modal.close())
+      );
+    });
+}
+
+/**
+ * Event listener for clicks on the main start button
+ */
+function startButtonClickHandler() {
+  switch (testState.state) {
+    case READY:
+    case FINISHED:
+      testState.speedtest.start();
+      testState.state = RUNNING;
+      return;
+    case RUNNING:
+      testState.speedtest.abort();
+      // testState.state is updated by `onend` handler of speedtest
+      return;
+    default:
+      return;
+  }
+}
+
+/**
+ * Event listener for clicks on the "Copy link" button in the modal
+ */
+async function copyLinkButtonClickHandler() {
+  const link = document.querySelector("img#results").src;
+  await navigator.clipboard.writeText(link);
+  const button = document.querySelector("#copy-link");
+  button.classList.add("active");
+  button.textContent = "Copied!";
+  setTimeout(() => {
+    button.classList.remove("active");
+    button.textContent = "Copy link";
+  }, 3000);
+}
+
+/**
+ * Load settings from settings.json on the server and apply them
+ */
+async function applySettingsJSON() {
+  try {
+    const response = await fetch("settings.json");
+    const settings = await response.json();
+    if (!settings || typeof settings !== "object") {
+      return console.error("Settings are empty or malformed");
+    }
+    for (let setting in settings) {
+      testState.speedtest.setParameter(setting, settings[setting]);
+      if (
+        setting == "telemetry_level" &&
+        settings[setting] &&
+        settings[setting] != "off" &&
+        settings[setting] != "disabled" &&
+        settings[setting] != "false"
+      ) {
+        testState.telemetryEnabled = true;
+        document.querySelector("#privacy-warning").classList.remove("hidden");
+      }
+    }
+  } catch (error) {
+    console.error("Failed to fetch settings:", error);
+  }
+}
+
+/**
+ * Load server list from the configured source and populate the dropdown
+ */
+async function applyServerListJSON() {
+  try {
+    const serverSource =
+      typeof globalThis.SPEEDTEST_SERVERS !== "undefined"
+        ? globalThis.SPEEDTEST_SERVERS
+        : "server-list.json";
+    const servers = Array.isArray(serverSource)
+      ? serverSource
+      : await fetch(serverSource).then((response) => response.json());
+    if (!servers || !Array.isArray(servers) || servers.length === 0) {
+      return console.error("Server list is empty or malformed");
+    }
+
+    testState.servers = servers;
+
+    // If there's only one server, just show it. No reachability checks needed.
+    if (servers.length === 1) {
+      populateDropdown(servers);
+      return;
+    }
+
+    // For multiple servers: first run the built-in selection (which pings servers
+    // and annotates them with pingT). Only then populate the dropdown so that
+    // dead servers don't appear.
+    testState.speedtest.addTestPoints(servers);
+    testState.speedtest.selectServer((bestServer) => {
+      const aliveServers = testState.servers.filter((s) => {
+        // Keep servers that responded to ping (pingT !== -1).
+        if (s.pingT !== -1) return true;
+        // Also keep protocol-relative servers ("//...") as a defensive fallback.
+        // LibreSpeed normalizes them to the page protocol before pinging, so they
+        // are normally treated like any other server and get a real pingT value.
+        return typeof s.server === "string" && s.server.startsWith("//");
+      });
+
+      // Prefer to show only reachable servers, but if none are reachable,
+      // fall back to the full list so users can still pick a server manually.
+      if (aliveServers.length > 0) {
+        testState.servers = aliveServers;
+      }
+      populateDropdown(testState.servers);
+
+
+      if (bestServer) {
+        selectServer(bestServer);
+      } else {
+        alert(
+          "Can't reach any of the speedtest servers! But you're on this page. Something weird is going on with your network."
+        );
+      }
+    });
+  } catch (error) {
+    console.error("Failed to load server list:", error);
+  }
+}
+
+/**
+ * Add all the servers to the server selection dropdown and make it actually
+ * work.
+ * @param {Array} servers - an array of server objects
+ */
+function populateDropdown(servers) {
+  const serverSelector = document.querySelector("div.server-selector");
+  const serverList = serverSelector.querySelector("ul.servers");
+
+  // Reset previous state (populateDropdown can be called multiple times)
+  serverSelector.classList.remove("single-server");
+  serverSelector.classList.remove("active");
+  serverList.classList.remove("active");
+  serverList.innerHTML = "";
+
+  // If we have only a single server, just show it
+  if (servers.length === 1) {
+    serverSelector.classList.add("single-server");
+    selectServer(servers[0]);
+    return;
+  }
+  serverSelector.classList.add("active");
+
+  // Make the dropdown open and close (hook only once)
+  if (serverSelector.dataset.hooked !== "1") {
+    serverSelector.dataset.hooked = "1";
+
+    serverSelector.addEventListener("click", () => {
+      serverList.classList.toggle("active");
+    });
+    document.addEventListener("click", (e) => {
+      if (e.target.closest("div.server-selector") !== serverSelector)
+        serverList.classList.remove("active");
+    });
+  }
+
+  // Populate the list to choose from
+  servers.forEach((server) => {
+    const item = document.createElement("li");
+    const link = document.createElement("a");
+    link.href = "#";
+    link.innerHTML = `${server.name}${
+      server.sponsorName ? ` <span>(${server.sponsorName})</span>` : ""
+    }`;
+    link.addEventListener("click", () => selectServer(server));
+    item.appendChild(link);
+    serverList.appendChild(item);
+  });
+}
+
+/**
+ * Set the given server as the selected server for the speedtest
+ * @param {Object} server - a server object
+ */
+function selectServer(server) {
+  testState.speedtest.setSelectedServer(server);
+  testState.selectedServerDirty = true;
+  testState.state = READY;
+}
+
+/**
+ * Start the requestAnimationFrame UI rendering loop
+ */
+function startRenderingLoop() {
+  // Do these queries once to speed up the rendering itself
+  const serverSelector = document.querySelector("div.server-selector");
+  const selectedServer = serverSelector.querySelector("#selected-server");
+  const sponsor = serverSelector.querySelector("#sponsor");
+  const startButton = document.querySelector("#start-button");
+  const privacyWarning = document.querySelector("#privacy-warning");
+
+  const gauges = document.querySelectorAll("#download-gauge, #upload-gauge");
+  const downloadProgress = document.querySelector("#download-gauge .progress");
+  const uploadProgress = document.querySelector("#upload-gauge .progress");
+  const downloadGauge = document.querySelector("#download-gauge .speed");
+  const uploadGauge = document.querySelector("#upload-gauge .speed");
+  const downloadText = document.querySelector("#download-gauge span");
+  const uploadText = document.querySelector("#upload-gauge span");
+
+  const pingAndJitter = document.querySelectorAll(".ping, .jitter");
+  const ping = document.querySelector("#ping");
+  const jitter = document.querySelector("#jitter");
+  const shareResults = document.querySelector("#share-results");
+  const copyLink = document.querySelector("#copy-link");
+  const resultsImage = document.querySelector("#results");
+
+  const buttonTexts = {
+    [INITIALIZING]: "Loading...",
+    [READY]: "Let's start",
+    [RUNNING]: "Abort",
+    [FINISHED]: "Restart",
+  };
+
+  // Show copy link button only if navigator.clipboard is available
+  copyLink.classList.toggle("hidden", !navigator.clipboard);
+
+  function renderUI() {
+    // Make the main button reflect the current state
+    startButton.textContent = buttonTexts[testState.state];
+    startButton.classList.toggle("disabled", testState.state === INITIALIZING);
+    startButton.classList.toggle("active", testState.state === RUNNING);
+
+    // Disable the server selector while test is running
+    serverSelector.classList.toggle("disabled", testState.state === RUNNING);
+
+    // Show selected server
+    if (testState.selectedServerDirty) {
+      const server = testState.speedtest.getSelectedServer();
+      selectedServer.textContent = server.name;
+      if (server.sponsorName) {
+        if (server.sponsorURL) {
+          sponsor.innerHTML = `Sponsor: <a href="${server.sponsorURL}">${server.sponsorName}</a>`;
+        } else {
+          sponsor.textContent = `Sponsor: ${server.sponsorName}`;
+        }
+      } else {
+        sponsor.innerHTML = "&nbsp;";
+      }
+      testState.selectedServerDirty = false;
+    }
+
+    // Activate the gauges when test running or finished
+    gauges.forEach((e) =>
+      e.classList.toggle(
+        "enabled",
+        testState.state === RUNNING || testState.state === FINISHED
+      )
+    );
+
+    // Show ping and jitter if data is available
+    pingAndJitter.forEach((e) =>
+      e.classList.toggle(
+        "hidden",
+        !(
+          testState.testData &&
+          testState.testData.pingStatus &&
+          testState.testData.jitterStatus
+        )
+      )
+    );
+
+    // Show share button after test if server supports it
+    shareResults.classList.toggle(
+      "hidden",
+      !(
+        testState.state === FINISHED &&
+        testState.telemetryEnabled &&
+        testState.testData.testId
+      )
+    );
+
+    if (testState.testDataDirty) {
+      // Set gauge rotations
+      downloadProgress.style = `--progress-rotation: ${
+        testState.testData.dlProgress * 180
+      }deg`;
+      uploadProgress.style = `--progress-rotation: ${
+        testState.testData.ulProgress * 180
+      }deg`;
+      downloadGauge.style = `--speed-rotation: ${mbpsToRotation(
+        testState.testData.dlStatus,
+        testState.testData.testState === 1
+      )}deg`;
+      uploadGauge.style = `--speed-rotation: ${mbpsToRotation(
+        testState.testData.ulStatus,
+        testState.testData.testState === 3
+      )}deg`;
+
+      // Set numeric values
+      downloadText.textContent = numberToText(testState.testData.dlStatus);
+      uploadText.textContent = numberToText(testState.testData.ulStatus);
+      ping.textContent = numberToText(testState.testData.pingStatus);
+      jitter.textContent = numberToText(testState.testData.jitterStatus);
+
+      // Set user's IP and provider
+      if (testState.testData.clientIp) {
+        // Clear previous content
+        privacyWarning.innerHTML = '';
+
+        const connectedThrough = document.createElement('span');
+        connectedThrough.textContent = 'You are connected through:';
+  
+        const ipAddress = document.createTextNode(testState.testData.clientIp);
+
+        privacyWarning.appendChild(connectedThrough);
+        privacyWarning.appendChild(document.createElement('br'));
+        privacyWarning.appendChild(ipAddress);
+  
+        privacyWarning.classList.remove("hidden");
+      }
+
+      // Set image for sharing results
+      if (testState.testData.testId) {
+        resultsImage.src =
+          window.location.href.substring(
+            0,
+            window.location.href.lastIndexOf("/")
+          ) +
+          "/results/?id=" +
+          testState.testData.testId;
+      }
+
+      testState.testDataDirty = false;
+    }
+
+    requestAnimationFrame(renderUI);
+  }
+
+  renderUI();
+}
+
+/**
+ * Convert a speed in Mbits per second to a rotation for the gauge
+ * @param {string} speed Speed in Mbits
+ * @param {boolean} oscillate If the gauge should wiggle a bit
+ * @returns {number} Rotation for the gauge in degrees
+ */
+function mbpsToRotation(speed, oscillate) {
+  speed = Number(speed);
+  if (speed <= 0) return 0;
+
+  const minSpeed = 0;
+  const maxSpeed = 10000; // 10 Gbps maxes out the gauge
+  const minRotation = 0;
+  const maxRotation = 180;
+
+  // Can't do log10 of values less than one, +1 all to keep it fair
+  const logMinSpeed = Math.log10(minSpeed + 1);
+  const logMaxSpeed = Math.log10(maxSpeed + 1);
+  const logSpeed = Math.log10(speed + 1);
+
+  const power = (logSpeed - logMinSpeed) / (logMaxSpeed - logMinSpeed);
+  const oscillation = oscillate ? 1 + 0.01 * Math.sin(Date.now() / 100) : 1;
+  const rotation = power * oscillation * maxRotation;
+
+  // Make sure we stay within bounds at all times
+  return Math.max(Math.min(rotation, maxRotation), minRotation);
+}
+
+/**
+ * Convert a number to a user friendly version
+ * @param {string} value Speed, ping or jitter
+ * @returns {string} A text version with proper decimals
+ */
+function numberToText(value) {
+  if (!value) return "00";
+  value = Number(value);
+  if (value < 10) return value.toFixed(2);
+  if (value < 100) return value.toFixed(1);
+  return value.toFixed(0);
+}

web/assets/speedtest.js

@@ -6,15 +6,15 @@
 */
 
 /*
-   This is the main interface between your webpage and the speedtest.
-   It hides the speedtest web worker to the page, and provides many convenient functions to control the test.
+   This is the main interface between your webpage and the speed test.
+   It hides the speed test web worker to the page, and provides many convenient functions to control the test.
 
    The best way to learn how to use this is to look at the basic example, but here's some documentation.
 
    To initialize the test, create a new Speedtest object:
-    var s=new Speedtest();
+    let s=new Speedtest();
    Now you can think of this as a finite state machine. These are the states (use getState() to see them):
-   - 0: here you can change the speedtest settings (such as test duration) with the setParameter("parameter",value) method. From here you can either start the test using start() (goes to state 3) or you can add multiple test points using addTestPoint(server) or addTestPoints(serverList) (goes to state 1). Additionally, this is the perfect moment to set up callbacks for the onupdate(data) and onend(aborted) events.
+   - 0: here you can change the speed test settings (such as test duration) with the setParameter("parameter",value) method. From here you can either start the test using start() (goes to state 3) or you can add multiple test points using addTestPoint(server) or addTestPoints(serverList) (goes to state 1). Additionally, this is the perfect moment to set up callbacks for the onupdate(data) and onend(aborted) events.
    - 1: here you can add test points. You only need to do this if you want to use multiple test points.
         A server is defined as an object like this:
         {
@@ -27,7 +27,7 @@
         }
         While in state 1, you can only add test points, you cannot change the test settings. When you're done, use selectServer(callback) to select the test point with the lowest ping. This is asynchronous, when it's done, it will call your callback function and move to state 2. Calling setSelectedServer(server) will manually select a server and move to state 2.
     - 2: test point selected, ready to start the test. Use start() to begin, this will move to state 3
-    - 3: test running. Here, your onupdate event calback will be called periodically, with data coming from the worker about speed and progress. A data object will be passed to your onupdate function, with the following items:
+    - 3: test running. Here, your onupdate event callback will be called periodically, with data coming from the worker about speed and progress. A data object will be passed to your onupdate function, with the following items:
             - dlStatus: download speed in Mbit/s
             - ulStatus: upload speed in Mbit/s
             - pingStatus: ping in ms
@@ -46,10 +46,10 @@
 function Speedtest() {
   this._serverList = []; //when using multiple points of test, this is a list of test points
   this._selectedServer = null; //when using multiple points of test, this is the selected server
-  this._settings = {}; //settings for the speedtest worker
+  this._settings = {}; //settings for the speed test worker
   this._state = 0; //0=adding settings, 1=adding servers, 2=server selection done, 3=test running, 4=done
   console.log(
-    "LibreSpeed by Federico Dossena v5.2 - https://github.com/librespeed/speedtest"
+    "LibreSpeed by Federico Dossena v6.1.0 - https://github.com/librespeed/speedtest"
   );
 }
 
@@ -66,13 +66,13 @@ Speedtest.prototype = {
    * - parameter: string with the name of the parameter that you want to set
    * - value: new value for the parameter
    *
-   * Invalid values or nonexistant parameters will be ignored by the speedtest worker.
+   * Invalid values or nonexistant parameters will be ignored by the speed test worker.
    */
   setParameter: function(parameter, value) {
-    if (this._state != 0)
-      throw "You cannot change the test settings after adding server or starting the test";
+    if (this._state == 3)
+      throw "You cannot change the test settings while running the test";
     this._settings[parameter] = value;
-    if(parameter === "temeletry_extra"){
+    if(parameter === "telemetry_extra"){
         this._originalExtra=this._settings.telemetry_extra;
     }
   },
@@ -125,7 +125,7 @@ Speedtest.prototype = {
    * Same as addTestPoint, but you can pass an array of servers
    */
   addTestPoints: function(list) {
-    for (var i = 0; i < list.length; i++) this.addTestPoint(list[i]);
+    for (let i = 0; i < list.length; i++) this.addTestPoint(list[i]);
   },
   /**
    * Load a JSON server list from URL (multiple points of test)
@@ -144,11 +144,11 @@ Speedtest.prototype = {
     if (this._state == 0) this._state = 1;
     if (this._state != 1) throw "You can't add a server after server selection";
     this._settings.mpot = true;
-    var xhr = new XMLHttpRequest();
+    let xhr = new XMLHttpRequest();
     xhr.onload = function(){
       try{
-        var servers=JSON.parse(xhr.responseText);
-        for(var i=0;i<servers.length;i++){
+        const servers=JSON.parse(xhr.responseText);
+        for(let i=0;i<servers.length;i++){
           this._checkServerDefinition(servers[i]);
         }
         this.addTestPoints(servers);
@@ -191,37 +191,37 @@ Speedtest.prototype = {
         throw "You can't select a server while the test is running";
     }
     if (this._selectServerCalled) throw "selectServer already called"; else this._selectServerCalled=true;
-    /*this function goes through a list of servers. For each server, the ping is measured, then the server with the function result is called with the best server, or null if all the servers were down.
+    /*this function goes through a list of servers. For each server, the ping is measured, then the server with the function selected is called with the best server, or null if all the servers were down.
      */
-    var select = function(serverList, result) {
+    const select = function(serverList, selected) {
       //pings the specified URL, then calls the function result. Result will receive a parameter which is either the time it took to ping the URL, or -1 if something went wrong.
-      var PING_TIMEOUT = 2000;
-      var USE_PING_TIMEOUT = true; //will be disabled on unsupported browsers
+      const PING_TIMEOUT = 2000;
+      let USE_PING_TIMEOUT = true; //will be disabled on unsupported browsers
       if (/MSIE.(\d+\.\d+)/i.test(navigator.userAgent)) {
         //IE11 doesn't support XHR timeout
         USE_PING_TIMEOUT = false;
       }
-      var ping = function(url, result) {
+      const ping = function(url, rtt) {
         url += (url.match(/\?/) ? "&" : "?") + "cors=true";
-        var xhr = new XMLHttpRequest();
-        var t = new Date().getTime();
+        let xhr = new XMLHttpRequest();
+        let t = new Date().getTime();
         xhr.onload = function() {
           if (xhr.responseText.length == 0) {
             //we expect an empty response
-            var instspd = new Date().getTime() - t; //rough timing estimate
+            let instspd = new Date().getTime() - t; //rough timing estimate
             try {
               //try to get more accurate timing using performance API
-              var p = performance.getEntriesByName(url);
+              let p = performance.getEntriesByName(url);
               p = p[p.length - 1];
-              var d = p.responseStart - p.requestStart;
+              let d = p.responseStart - p.requestStart;
               if (d <= 0) d = p.duration;
               if (d > 0 && d < instspd) instspd = d;
             } catch (e) {}
-            result(instspd);
-          } else result(-1);
+            rtt(instspd);
+          } else rtt(-1);
         }.bind(this);
         xhr.onerror = function() {
-          result(-1);
+          rtt(-1);
         }.bind(this);
         xhr.open("GET", url);
         if (USE_PING_TIMEOUT) {
@@ -234,14 +234,14 @@ Speedtest.prototype = {
       }.bind(this);
 
       //this function repeatedly pings a server to get a good estimate of the ping. When it's done, it calls the done function without parameters. At the end of the execution, the server will have a new parameter called pingT, which is either the best ping we got from the server or -1 if something went wrong.
-      var PINGS = 3, //up to 3 pings are performed, unless the server is down...
+      const PINGS = 3, //up to 3 pings are performed, unless the server is down...
         SLOW_THRESHOLD = 500; //...or one of the pings is above this threshold
-      var checkServer = function(server, done) {
-        var i = 0;
+      const checkServer = function(server, done) {
+        let i = 0;
         server.pingT = -1;
         if (server.server.indexOf(location.protocol) == -1) done();
         else {
-          var nextPing = function() {
+          const nextPing = function() {
             if (i++ == PINGS) {
               done();
               return;
@@ -261,19 +261,19 @@ Speedtest.prototype = {
         }
       }.bind(this);
       //check servers in list, one by one
-      var i = 0;
-      var done = function() {
-        var bestServer = null;
-        for (var i = 0; i < serverList.length; i++) {
+      let i = 0;
+      const done = function() {
+        let bestServer = null;
+        for (let i = 0; i < serverList.length; i++) {
           if (
             serverList[i].pingT != -1 &&
             (bestServer == null || serverList[i].pingT < bestServer.pingT)
           )
             bestServer = serverList[i];
         }
-        result(bestServer);
+        selected(bestServer);
       }.bind(this);
-      var nextServer = function() {
+      const nextServer = function() {
         if (i == serverList.length) {
           done();
           return;
@@ -284,17 +284,17 @@ Speedtest.prototype = {
     }.bind(this);
 
     //parallel server selection
-    var CONCURRENCY = 6;
-    var serverLists = [];
-    for (var i = 0; i < CONCURRENCY; i++) {
+    const CONCURRENCY = 6;
+    let serverLists = [];
+    for (let i = 0; i < CONCURRENCY; i++) {
       serverLists[i] = [];
     }
-    for (var i = 0; i < this._serverList.length; i++) {
+    for (let i = 0; i < this._serverList.length; i++) {
       serverLists[i % CONCURRENCY].push(this._serverList[i]);
     }
-    var completed = 0;
-    var bestServer = null;
-    for (var i = 0; i < CONCURRENCY; i++) {
+    let completed = 0;
+    let bestServer = null;
+    for (let i = 0; i < CONCURRENCY; i++) {
       select(
         serverLists[i],
         function(server) {
@@ -323,20 +323,20 @@ Speedtest.prototype = {
     this.worker.onmessage = function(e) {
       if (e.data === this._prevData) return;
       else this._prevData = e.data;
-      var data = JSON.parse(e.data);
+      const data = JSON.parse(e.data);
       try {
         if (this.onupdate) this.onupdate(data);
       } catch (e) {
         console.error("Speedtest onupdate event threw exception: " + e);
       }
       if (data.testState >= 4) {
+        clearInterval(this.updater);
+        this._state = 4;
         try {
           if (this.onend) this.onend(data.testState == 5);
         } catch (e) {
           console.error("Speedtest onend event threw exception: " + e);
         }
-        clearInterval(this.updater);
-        this._state = 4;
       }
     }.bind(this);
     this.updater = setInterval(

web/assets/speedtest_worker.js

@@ -6,18 +6,18 @@
 */
 
 // data reported to main thread
-var testState = -1; // -1=not started, 0=starting, 1=download test, 2=ping+jitter test, 3=upload test, 4=finished, 5=abort
-var dlStatus = ""; // download speed in Mbit/s with 2 decimal digits
-var ulStatus = ""; // upload speed in Mbit/s with 2 decimal digits
-var pingStatus = ""; // ping in milliseconds with 2 decimal digits
-var jitterStatus = ""; // jitter in milliseconds with 2 decimal digits
-var clientIp = ""; // client's IP address as reported by getIP
-var dlProgress = 0; //progress of download test 0-1
-var ulProgress = 0; //progress of upload test 0-1
-var pingProgress = 0; //progress of ping+jitter test 0-1
-var testId = null; //test ID (sent back by telemetry if used, null otherwise)
+let testState = -1; // -1=not started, 0=starting, 1=download test, 2=ping+jitter test, 3=upload test, 4=finished, 5=abort
+let dlStatus = ""; // download speed in megabit/s with 2 decimal digits
+let ulStatus = ""; // upload speed in megabit/s with 2 decimal digits
+let pingStatus = ""; // ping in milliseconds with 2 decimal digits
+let jitterStatus = ""; // jitter in milliseconds with 2 decimal digits
+let clientIp = ""; // client's IP address as reported by getIP.php
+let dlProgress = 0; //progress of download test 0-1
+let ulProgress = 0; //progress of upload test 0-1
+let pingProgress = 0; //progress of ping+jitter test 0-1
+let testId = null; //test ID (sent back by telemetry if used, null otherwise)
 
-var log = ""; //telemetry log
+let log = ""; //telemetry log
 function tlog(s) {
 	if (settings.telemetry_level >= 2) {
 		log += Date.now() + ": " + s + "\n";
@@ -36,7 +36,7 @@ function twarn(s) {
 }
 
 // test settings. can be overridden by sending specific values with the start command
-var settings = {
+let settings = {
 	mpot: false, //set to true when in MPOT mode
 	test_order: "IP_D_U", //order in which tests will be performed as a string. D=Download, U=Upload, P=Ping+Jitter, I=IP, _=1 second delay
 	time_ul_max: 15, // max duration of upload test in seconds
@@ -45,10 +45,10 @@ var settings = {
 	time_ulGraceTime: 3, //time to wait in seconds before actually measuring ul speed (wait for buffers to fill)
 	time_dlGraceTime: 1.5, //time to wait in seconds before actually measuring dl speed (wait for TCP window to increase)
 	count_ping: 10, // number of pings to perform in ping test
-	url_dl: "backend/garbage", // path to a large file or garbage.php, used for download test. must be relative to this js file
-	url_ul: "backend/empty", // path to an empty file, used for upload test. must be relative to this js file
-	url_ping: "backend/empty", // path to an empty file, used for ping test. must be relative to this js file
-	url_getIp: "backend/getIP", // path to getIP.php relative to this js file, or a similar thing that outputs the client's ip
+	url_dl: "backend/garbage.php", // path to a large file or garbage.php, used for download test. must be relative to this js file
+	url_ul: "backend/empty.php", // path to an empty file, used for upload test. must be relative to this js file
+	url_ping: "backend/empty.php", // path to an empty file, used for ping test. must be relative to this js file
+	url_getIp: "backend/getIP.php", // path to getIP.php relative to this js file, or a similar thing that outputs the client's ip
 	getIp_ispInfo: true, //if set to true, the server will include ISP info with the IP address
 	getIp_ispInfo_distance: "km", //km or mi=estimate distance from server in km/mi; set to false to disable distance estimation. getIp_ispInfo must be enabled in order for this to work
 	xhr_dlMultistream: 6, // number of download streams to use (can be different if enable_quirks is active)
@@ -60,16 +60,17 @@ var settings = {
 	garbagePhp_chunkSize: 100, // size of chunks sent by garbage.php (can be different if enable_quirks is active)
 	enable_quirks: true, // enable quirks for specific browsers. currently it overrides settings to optimize for specific browsers, unless they are already being overridden with the start command
 	ping_allowPerformanceApi: true, // if enabled, the ping test will attempt to calculate the ping more precisely using the Performance API. Currently works perfectly in Chrome, badly in Edge, and not at all in Firefox. If Performance API is not supported or the result is obviously wrong, a fallback is provided.
-	overheadCompensationFactor: 1.06, //can be changed to compensatie for transport overhead. (see doc.md for some other values)
-	useMebibits: false, //if set to true, speed will be reported in Mibit/s instead of Mbit/s
+	overheadCompensationFactor: 1.06, //can be changed to compensate for transport overhead. (see doc.md for some other values)
+	useMebibits: false, //if set to true, speed will be reported in mebibits/s instead of megabits/s
 	telemetry_level: 0, // 0=disabled, 1=basic (results only), 2=full (results and timing) 3=debug (results+log)
-	url_telemetry: "results/telemetry", // path to the script that adds telemetry data to the database
-	telemetry_extra: "" //extra data that can be passed to the telemetry through the settings
+	url_telemetry: "results/telemetry.php", // path to the script that adds telemetry data to the database
+	telemetry_extra: "", //extra data that can be passed to the telemetry through the settings
+    forceIE11Workaround: false //when set to true, it will force the IE11 upload test on all browsers. Debug only
 };
 
-var xhr = null; // array of currently active xhr requests
-var interval = null; // timer used in tests
-var test_pointer = 0; //pointer to the next test to run inside settings.test_order
+let xhr = null; // array of currently active xhr requests
+let interval = null; // timer used in tests
+let test_pointer = 0; //pointer to the next test to run inside settings.test_order
 
 /*
   this function is used on URLs passed in the settings to determine whether we need a ? or an & as a separator
@@ -87,7 +88,7 @@ function url_sep(url) {
 		example: start {"time_ul_max":"10", "time_dl_max":"10", "count_ping":"50"}
 */
 this.addEventListener("message", function(e) {
-	var params = e.data.split(" ");
+	const params = e.data.split(" ");
 	if (params[0] === "status") {
 		// return status
 		postMessage(
@@ -110,19 +111,19 @@ this.addEventListener("message", function(e) {
 		testState = 0;
 		try {
 			// parse settings, if present
-			var s = {};
+			let s = {};
 			try {
-				var ss = e.data.substring(5);
+				const ss = e.data.substring(5);
 				if (ss) s = JSON.parse(ss);
 			} catch (e) {
 				twarn("Error parsing custom settings JSON. Please check your syntax");
 			}
 			//copy custom settings
-			for (var key in s) {
+			for (let key in s) {
 				if (typeof settings[key] !== "undefined") settings[key] = s[key];
 				else twarn("Unknown setting ignored: " + key);
 			}
-			var ua = navigator.userAgent;
+			const ua = navigator.userAgent;
 			// quirks for specific browsers. apply only if not overridden. more may be added in future releases
 			if (settings.enable_quirks || (typeof s.enable_quirks !== "undefined" && s.enable_quirks)) {
 				if (/Firefox.(\d+\.\d+)/i.test(ua)) {
@@ -171,11 +172,11 @@ this.addEventListener("message", function(e) {
 		// run the tests
 		tverb(JSON.stringify(settings));
 		test_pointer = 0;
-		var iRun = false,
+		let iRun = false,
 			dRun = false,
 			uRun = false,
 			pRun = false;
-		var runNextTest = function() {
+		const runNextTest = function() {
 			if (testState == 5) return;
 			if (test_pointer >= settings.test_order.length) {
 				//test is finished
@@ -266,7 +267,7 @@ this.addEventListener("message", function(e) {
 function clearRequests() {
 	tverb("stopping pending XHRs");
 	if (xhr) {
-		for (var i = 0; i < xhr.length; i++) {
+		for (let i = 0; i < xhr.length; i++) {
 			try {
 				xhr[i].onprogress = null;
 				xhr[i].onload = null;
@@ -288,18 +289,18 @@ function clearRequests() {
 	}
 }
 // gets client's IP using url_getIp, then calls the done function
-var ipCalled = false; // used to prevent multiple accidental calls to getIp
-var ispInfo = ""; //used for telemetry
+let ipCalled = false; // used to prevent multiple accidental calls to getIp
+let ispInfo = ""; //used for telemetry
 function getIp(done) {
 	tverb("getIp");
 	if (ipCalled) return;
 	else ipCalled = true; // getIp already called?
-	var startT = new Date().getTime();
+	let startT = new Date().getTime();
 	xhr = new XMLHttpRequest();
 	xhr.onload = function() {
 		tlog("IP: " + xhr.responseText + ", took " + (new Date().getTime() - startT) + "ms");
 		try {
-			var data = JSON.parse(xhr.responseText);
+			const data = JSON.parse(xhr.responseText);
 			clientIp = data.processedString;
 			ispInfo = data.rawIspInfo;
 		} catch (e) {
@@ -316,25 +317,25 @@ function getIp(done) {
 	xhr.send();
 }
 // download test, calls done function when it's over
-var dlCalled = false; // used to prevent multiple accidental calls to dlTest
+let dlCalled = false; // used to prevent multiple accidental calls to dlTest
 function dlTest(done) {
 	tverb("dlTest");
 	if (dlCalled) return;
 	else dlCalled = true; // dlTest already called?
-	var totLoaded = 0.0, // total number of loaded bytes
+	let totLoaded = 0.0, // total number of loaded bytes
 		startT = new Date().getTime(), // timestamp when test was started
 		bonusT = 0, //how many milliseconds the test has been shortened by (higher on faster connections)
 		graceTimeDone = false, //set to true after the grace time is past
 		failed = false; // set to true if a stream fails
 	xhr = [];
 	// function to create a download stream. streams are slightly delayed so that they will not end at the same time
-	var testStream = function(i, delay) {
+	const testStream = function(i, delay) {
 		setTimeout(
 			function() {
 				if (testState !== 1) return; // delayed stream ended up starting after the end of the download test
 				tverb("dl test stream started " + i + " " + delay);
-				var prevLoaded = 0; // number of bytes loaded last time onprogress was called
-				var x = new XMLHttpRequest();
+				let prevLoaded = 0; // number of bytes loaded last time onprogress was called
+				let x = new XMLHttpRequest();
 				xhr[i] = x;
 				xhr[i].onprogress = function(event) {
 					tverb("dl stream progress event " + i + " " + event.loaded);
@@ -344,7 +345,7 @@ function dlTest(done) {
 						} catch (e) {}
 					} // just in case this XHR is still running after the download test
 					// progress event, add number of new loaded bytes to totLoaded
-					var loadDiff = event.loaded <= 0 ? 0 : event.loaded - prevLoaded;
+					const loadDiff = event.loaded <= 0 ? 0 : event.loaded - prevLoaded;
 					if (isNaN(loadDiff) || !isFinite(loadDiff) || loadDiff < 0) return; // just in case
 					totLoaded += loadDiff;
 					prevLoaded = event.loaded;
@@ -379,14 +380,14 @@ function dlTest(done) {
 		);
 	}.bind(this);
 	// open streams
-	for (var i = 0; i < settings.xhr_dlMultistream; i++) {
+	for (let i = 0; i < settings.xhr_dlMultistream; i++) {
 		testStream(i, settings.xhr_multistreamDelay * i);
 	}
 	// every 200ms, update dlStatus
 	interval = setInterval(
 		function() {
 			tverb("DL: " + dlStatus + (graceTimeDone ? "" : " (in grace time)"));
-			var t = new Date().getTime() - startT;
+			const t = new Date().getTime() - startT;
 			if (graceTimeDone) dlProgress = (t + bonusT) / (settings.time_dl_max * 1000);
 			if (t < 200) return;
 			if (!graceTimeDone) {
@@ -400,11 +401,11 @@ function dlTest(done) {
 					graceTimeDone = true;
 				}
 			} else {
-				var speed = totLoaded / (t / 1000.0);
+				const speed = totLoaded / (t / 1000.0);
 				if (settings.time_auto) {
 					//decide how much to shorten the test. Every 200ms, the test is shortened by the bonusT calculated here
-					var bonus = (6.4 * speed) / 100000;
-					bonusT += bonus > 800 ? 800 : bonus;
+					const bonus = (5.0 * speed) / 100000;
+					bonusT += bonus > 400 ? 400 : bonus;
 				}
 				//update status
 				dlStatus = ((speed * 8 * settings.overheadCompensationFactor) / (settings.useMebibits ? 1048576 : 1000000)).toFixed(2); // speed is multiplied by 8 to go from bytes to bits, overhead compensation is applied, then everything is divided by 1048576 or 1000000 to go to megabits/mebibits
@@ -422,47 +423,47 @@ function dlTest(done) {
 		200
 	);
 }
-// upload test, calls done function whent it's over
-var ulCalled = false; // used to prevent multiple accidental calls to ulTest
+// upload test, calls done function when it's over
+let ulCalled = false; // used to prevent multiple accidental calls to ulTest
 function ulTest(done) {
 	tverb("ulTest");
 	if (ulCalled) return;
 	else ulCalled = true; // ulTest already called?
 	// garbage data for upload test
-	var r = new ArrayBuffer(1048576);
-	var maxInt = Math.pow(2, 32) - 1;
+	let r = new ArrayBuffer(1048576);
+	const maxInt = Math.pow(2, 32) - 1;
 	try {
 		r = new Uint32Array(r);
-		for (var i = 0; i < r.length; i++) r[i] = Math.random() * maxInt;
+		for (let i = 0; i < r.length; i++) r[i] = Math.random() * maxInt;
 	} catch (e) {}
-	var req = [];
-	var reqsmall = [];
-	for (var i = 0; i < settings.xhr_ul_blob_megabytes; i++) req.push(r);
+	let req = [];
+	let reqsmall = [];
+	for (let i = 0; i < settings.xhr_ul_blob_megabytes; i++) req.push(r);
 	req = new Blob(req);
 	r = new ArrayBuffer(262144);
 	try {
 		r = new Uint32Array(r);
-		for (var i = 0; i < r.length; i++) r[i] = Math.random() * maxInt;
+		for (let i = 0; i < r.length; i++) r[i] = Math.random() * maxInt;
 	} catch (e) {}
 	reqsmall.push(r);
 	reqsmall = new Blob(reqsmall);
-	var testFunction = function() {
-		var totLoaded = 0.0, // total number of transmitted bytes
+	const testFunction = function() {
+		let totLoaded = 0.0, // total number of transmitted bytes
 			startT = new Date().getTime(), // timestamp when test was started
 			bonusT = 0, //how many milliseconds the test has been shortened by (higher on faster connections)
 			graceTimeDone = false, //set to true after the grace time is past
 			failed = false; // set to true if a stream fails
 		xhr = [];
 		// function to create an upload stream. streams are slightly delayed so that they will not end at the same time
-		var testStream = function(i, delay) {
+		const testStream = function(i, delay) {
 			setTimeout(
 				function() {
 					if (testState !== 3) return; // delayed stream ended up starting after the end of the upload test
 					tverb("ul test stream started " + i + " " + delay);
-					var prevLoaded = 0; // number of bytes transmitted last time onprogress was called
-					var x = new XMLHttpRequest();
+					let prevLoaded = 0; // number of bytes transmitted last time onprogress was called
+					let x = new XMLHttpRequest();
 					xhr[i] = x;
-					var ie11workaround;
+					let ie11workaround;
 					if (settings.forceIE11Workaround) ie11workaround = true;
 					else {
 						try {
@@ -473,7 +474,7 @@ function ulTest(done) {
 						}
 					}
 					if (ie11workaround) {
-						// IE11 workarond: xhr.upload does not work properly, therefore we send a bunch of small 256k requests and use the onload event as progress. This is not precise, especially on fast connections
+						// IE11 workaround: xhr.upload does not work properly, therefore we send a bunch of small 256k requests and use the onload event as progress. This is not precise, especially on fast connections
 						xhr[i].onload = xhr[i].onerror = function() {
 							tverb("ul stream progress event (ie11wa)");
 							totLoaded += reqsmall.size;
@@ -495,7 +496,7 @@ function ulTest(done) {
 								} catch (e) {}
 							} // just in case this XHR is still running after the upload test
 							// progress event, add number of new loaded bytes to totLoaded
-							var loadDiff = event.loaded <= 0 ? 0 : event.loaded - prevLoaded;
+							const loadDiff = event.loaded <= 0 ? 0 : event.loaded - prevLoaded;
 							if (isNaN(loadDiff) || !isFinite(loadDiff) || loadDiff < 0) return; // just in case
 							totLoaded += loadDiff;
 							prevLoaded = event.loaded;
@@ -527,14 +528,14 @@ function ulTest(done) {
 			);
 		}.bind(this);
 		// open streams
-		for (var i = 0; i < settings.xhr_ulMultistream; i++) {
+		for (let i = 0; i < settings.xhr_ulMultistream; i++) {
 			testStream(i, settings.xhr_multistreamDelay * i);
 		}
 		// every 200ms, update ulStatus
 		interval = setInterval(
 			function() {
 				tverb("UL: " + ulStatus + (graceTimeDone ? "" : " (in grace time)"));
-				var t = new Date().getTime() - startT;
+				const t = new Date().getTime() - startT;
 				if (graceTimeDone) ulProgress = (t + bonusT) / (settings.time_ul_max * 1000);
 				if (t < 200) return;
 				if (!graceTimeDone) {
@@ -548,11 +549,11 @@ function ulTest(done) {
 						graceTimeDone = true;
 					}
 				} else {
-					var speed = totLoaded / (t / 1000.0);
+					const speed = totLoaded / (t / 1000.0);
 					if (settings.time_auto) {
 						//decide how much to shorten the test. Every 200ms, the test is shortened by the bonusT calculated here
-						var bonus = (6.4 * speed) / 100000;
-						bonusT += bonus > 800 ? 800 : bonus;
+						const bonus = (5.0 * speed) / 100000;
+						bonusT += bonus > 400 ? 400 : bonus;
 					}
 					//update status
 					ulStatus = ((speed * 8 * settings.overheadCompensationFactor) / (settings.useMebibits ? 1048576 : 1000000)).toFixed(2); // speed is multiplied by 8 to go from bytes to bits, overhead compensation is applied, then everything is divided by 1048576 or 1000000 to go to megabits/mebibits
@@ -583,20 +584,20 @@ function ulTest(done) {
 	} else testFunction();
 }
 // ping+jitter test, function done is called when it's over
-var ptCalled = false; // used to prevent multiple accidental calls to pingTest
+let ptCalled = false; // used to prevent multiple accidental calls to pingTest
 function pingTest(done) {
 	tverb("pingTest");
 	if (ptCalled) return;
 	else ptCalled = true; // pingTest already called?
-	var startT = new Date().getTime(); //when the test was started
-	var prevT = null; // last time a pong was received
-	var ping = 0.0; // current ping value
-	var jitter = 0.0; // current jitter value
-	var i = 0; // counter of pongs received
-	var prevInstspd = 0; // last ping time, used for jitter calculation
+	const startT = new Date().getTime(); //when the test was started
+	let prevT = null; // last time a pong was received
+	let ping = 0.0; // current ping value
+	let jitter = 0.0; // current jitter value
+	let i = 0; // counter of pongs received
+	let prevInstspd = 0; // last ping time, used for jitter calculation
 	xhr = [];
 	// ping function
-	var doPing = function() {
+	const doPing = function() {
 		tverb("ping");
 		pingProgress = i / settings.count_ping;
 		prevT = new Date().getTime();
@@ -607,13 +608,13 @@ function pingTest(done) {
 			if (i === 0) {
 				prevT = new Date().getTime(); // first pong
 			} else {
-				var instspd = new Date().getTime() - prevT;
+				let instspd = new Date().getTime() - prevT;
 				if (settings.ping_allowPerformanceApi) {
 					try {
 						//try to get accurate performance timing using performance api
-						var p = performance.getEntries();
+						let p = performance.getEntries();
 						p = p[p.length - 1];
-						var d = p.responseStart - p.requestStart;
+						let d = p.responseStart - p.requestStart;
 						if (d <= 0) d = p.duration;
 						if (d > 0 && d < instspd) instspd = d;
 					} catch (e) {
@@ -624,7 +625,7 @@ function pingTest(done) {
 				//noticed that some browsers randomly have 0ms ping
 				if (instspd < 1) instspd = prevInstspd;
 				if (instspd < 1) instspd = 1;
-				var instjitter = Math.abs(instspd - prevInstspd);
+				const instjitter = Math.abs(instspd - prevInstspd);
 				if (i === 1) ping = instspd;
 				/* first ping, can't tell jitter yet*/ else {
 					if (instspd < ping) ping = instspd; // update ping, if the instant ping is lower
@@ -683,10 +684,10 @@ function sendTelemetry(done) {
 	xhr = new XMLHttpRequest();
 	xhr.onload = function() {
 		try {
-			var parts = xhr.responseText.split(" ");
+			const parts = xhr.responseText.split(" ");
 			if (parts[0] == "id") {
 				try {
-					var id = parts[1];
+					let id = parts[1];
 					done(id);
 				} catch (e) {
 					done(null);
@@ -701,12 +702,12 @@ function sendTelemetry(done) {
 		done(null);
 	};
 	xhr.open("POST", settings.url_telemetry + url_sep(settings.url_telemetry) + (settings.mpot ? "cors=true&" : "") + "r=" + Math.random(), true);
-	var telemetryIspInfo = {
+	const telemetryIspInfo = {
 		processedString: clientIp,
 		rawIspInfo: typeof ispInfo === "object" ? ispInfo : ""
 	};
 	try {
-		var fd = new FormData();
+		const fd = new FormData();
 		fd.append("ispinfo", JSON.stringify(telemetryIspInfo));
 		fd.append("dl", dlStatus);
 		fd.append("ul", ulStatus);
@@ -716,7 +717,7 @@ function sendTelemetry(done) {
 		fd.append("extra", settings.telemetry_extra);
 		xhr.send(fd);
 	} catch (ex) {
-		var postData = "extra=" + encodeURIComponent(settings.telemetry_extra) + "&ispinfo=" + encodeURIComponent(JSON.stringify(telemetryIspInfo)) + "&dl=" + encodeURIComponent(dlStatus) + "&ul=" + encodeURIComponent(ulStatus) + "&ping=" + encodeURIComponent(pingStatus) + "&jitter=" + encodeURIComponent(jitterStatus) + "&log=" + encodeURIComponent(settings.telemetry_level > 1 ? log : "");
+		const postData = "extra=" + encodeURIComponent(settings.telemetry_extra) + "&ispinfo=" + encodeURIComponent(JSON.stringify(telemetryIspInfo)) + "&dl=" + encodeURIComponent(dlStatus) + "&ul=" + encodeURIComponent(ulStatus) + "&ping=" + encodeURIComponent(pingStatus) + "&jitter=" + encodeURIComponent(jitterStatus) + "&log=" + encodeURIComponent(settings.telemetry_level > 1 ? log : "");
 		xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
 		xhr.send(postData);
 	}

web/assets/styling/button.css

@@ -0,0 +1,83 @@
+/* The main "start the test" button and the share button */
+
+button {
+  height: 6.8rem;
+  min-width: 26.4rem;
+  padding: 0 5rem;
+  margin: 2.5rem;
+  border-radius: 3.4rem;
+  border: 0;
+
+  font-family: "Inter", sans-serif;
+  font-size: 2rem;
+  font-weight: 700;
+  letter-spacing: -0.1rem;
+  color: var(--button-text-color);
+  text-transform: uppercase;
+  cursor: pointer;
+  box-shadow: 0 0.4rem 1.6rem 0 var(--button-shadow-color);
+
+  will-change: transform;
+  backface-visibility: hidden;
+  transform: scale(1) translate3d(0, 0, 0) perspective(1px);
+
+  background: var(--button-gradient-1-color-1);
+  transition: background-position 0.2s, transform 0.2s;
+  background-position: 0% 0%;
+  background: linear-gradient(
+    92.97deg,
+    var(--button-gradient-1-color-1) 0%,
+    var(--button-gradient-1-color-1) 33%,
+    var(--button-gradient-1-color-2) 40%,
+    var(--button-gradient-1-color-3) 66.71%,
+    var(--button-gradient-1-color-3) 100%
+  );
+  background-size: 300% 100%;
+
+  &.disabled {
+    cursor: default;
+    transform: scale(1) translate3d(0, 0, 0) perspective(1px);
+    background: var(--button-disabled-background-color);
+  }
+  &.small {
+    height: 4.7rem;
+    min-width: 20.2rem;
+    text-transform: lowercase;
+  }
+  &.inverted {
+    border: 1px solid var(--button-gradient-1-color-1);
+    color: transparent;
+    background-clip: text;
+  }
+  &.hidden {
+    opacity: 0;
+    pointer-events: none;
+  }
+  &:hover {
+    background-position: 60% 0%;
+    transform: scale(1.03) translate3d(0, 0, 0) perspective(1px);
+  }
+  &.active,
+  &:active {
+    background-position: 100% 0%;
+    animation: pulse 0.7s;
+  }
+}
+
+@keyframes pulse {
+  0% {
+    transform: scale(1.03) translate3d(0, 0, 0) perspective(1px);
+  }
+  20% {
+    transform: scale(1.2) translate3d(0, 0, 0) perspective(1px);
+  }
+  40% {
+    transform: scale(1) translate3d(0, 0, 0) perspective(1px);
+  }
+  60% {
+    transform: scale(1.1) translate3d(0, 0, 0) perspective(1px);
+  }
+  100% {
+    transform: scale(1) translate3d(0, 0, 0) perspective(1px);
+  }
+}

web/assets/styling/colors.css

@@ -0,0 +1,36 @@
+:root {
+  --theme-green: #5cf9fd;
+  --theme-pink: #d63bc6;
+
+  --background-backup-color: #0e0720;
+  --background-overlay-color: rgb(41 26 70 / 71%);
+
+  --primary-text-color: #ffffff;
+  --tagline-text-color: var(--theme-green);
+  --secondary-text-color: #898591;
+  --primary-text-disabled-color: #888888;
+  --secondary-text-disabled-color: #2e7d7f;
+
+  --button-text-color: #3e2f50;
+  --button-gradient-1-color-1: #f5f5f5;
+  --button-gradient-1-color-2: var(--theme-green);
+  --button-gradient-1-color-3: var(--theme-pink);
+  --button-shadow-color: #5cf9fd47;
+  --button-disabled-background-color: #a2a2a2;
+
+  --server-selector-border-color: #625b6b;
+  --server-selector-hover-border-color: var(--theme-green);
+  --server-selector-background-color: #251b32;
+  --server-selector-hover-background-color: var(--server-selector-border-color);
+
+  --gauge-background-color: #3e2f50;
+  --gauge-progress-color: #726c7a;
+  --gauge-pointer-green: #e2fbfc;
+  --gauge-pointer-pink: #d091ca;
+
+  --ping-and-jitter-primary-text-color: #f5f5f5;
+  --ping-and-jitter-secondary-text-color: #7b7b7b;
+
+  --popup-background-color: #251b32;
+  --popup-shadow-color: #000000;
+}

web/assets/styling/dialog.css

@@ -0,0 +1,132 @@
+/* Styling for the popups */
+
+dialog {
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  width: 70vw;
+  height: 70vh;
+  margin: auto;
+  margin-top: 23rem;
+
+  background: var(--popup-background-color);
+  border: none;
+  border-radius: 0.8rem;
+
+  @media screen and (max-width: 800px) {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    max-width: 100vw; /* We need these overrides of browser defaults*/
+    max-height: 100vh;
+    width: auto;
+    height: auto;
+    margin: 0;
+  }
+
+  animation: fade-out 0.3s ease-out;
+  &[open] {
+    display: flex;
+    animation: fade-in 0.3s ease-out;
+  }
+
+  & > .close-dialog {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 4rem;
+    height: 4rem;
+    position: absolute;
+    top: 3rem;
+    right: 3rem;
+
+    cursor: pointer;
+  }
+
+  & > section {
+    max-width: 800px;
+    overflow-y: auto;
+    margin: 4rem 2rem 2rem 4rem;
+    padding: 0 2rem 0 0;
+
+    & h1,
+    & h2 {
+      margin: 3rem 0 2rem 0;
+      font-size: 3.6rem;
+      font-weight: 400;
+      letter-spacing: -0.2rem;
+      color: var(--primary-text-color);
+    }
+    & h2 {
+      margin: 2rem 0 1rem 0;
+      font-size: 2.5rem;
+    }
+
+    & p,
+    & li {
+      margin: 1rem 0 1rem 0;
+      font-size: 1.6rem;
+      line-height: 2.5rem;
+      font-weight: 400;
+      letter-spacing: -0.1rem;
+      color: var(--secondary-text-color);
+    }
+
+    & ul {
+      list-style-position: inside;
+      margin: 1rem;
+
+      & li {
+        margin: 0.1rem 0;
+      }
+    }
+
+    & a {
+      font-size: 1.6rem;
+      font-weight: 700;
+      letter-spacing: -0.1rem;
+      color: var(--secondary-text-color);
+      text-underline-offset: 0.3rem;
+      transition: text-underline-offset 0.2s;
+
+      &:hover {
+        color: var(--theme-green);
+        text-underline-offset: 0.5rem;
+      }
+    }
+  }
+}
+
+@keyframes fade-in {
+  0% {
+    opacity: 0;
+    transform: scale(0.6);
+    display: none;
+  }
+  0.1% {
+    display: flex;
+  }
+  100% {
+    opacity: 1;
+    transform: scale(1);
+    display: flex;
+  }
+}
+
+@keyframes fade-out {
+  0% {
+    opacity: 1;
+    transform: scale(1);
+    display: flex;
+  }
+  99.9% {
+    display: flex;
+  }
+  100% {
+    opacity: 0;
+    transform: scale(0.6);
+    display: none;
+  }
+}

web/assets/styling/fonts.css

@@ -0,0 +1,22 @@
+/* latin-ext */
+@font-face {
+  font-family: "Inter";
+  font-style: normal;
+  font-weight: 100 900;
+  font-display: swap;
+  src: url(../fonts/Inter-latin-ext.woff2) format("woff2");
+  unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF,
+    U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+
+/* latin */
+@font-face {
+  font-family: "Inter";
+  font-style: normal;
+  font-weight: 100 900;
+  font-display: swap;
+  src: url(../fonts/Inter-latin.woff2) format("woff2");
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
+    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191,
+    U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}

web/assets/styling/index.css

@@ -0,0 +1,85 @@
+/**
+ * Design by fromScratch Studio - 2022, 2023 (fromscratch.io)
+ * Implementation in HTML/CSS/JS by Timendus - 2024 (https://github.com/Timendus)
+ *
+ * See https://github.com/librespeed/speedtest/issues/585
+ */
+
+@import url("colors.css");
+@import url("fonts.css");
+@import url("main.css");
+@import url("server-selector.css");
+@import url("button.css");
+@import url("results.css");
+@import url("dialog.css");
+
+/* Setting up the basic structure */
+
+* {
+  box-sizing: border-box;
+  padding: 0;
+  margin: 0;
+}
+
+html,
+body {
+  min-height: 100vh;
+  width: 100vw;
+}
+
+html {
+  background-color: var(--background-backup-color);
+  background-image: url("../images/background.jpeg");
+  background-repeat: no-repeat;
+  background-position: center;
+  background-size: cover;
+  font-size: 10px;
+
+  @media screen and (max-width: 800px) {
+    font-size: 8px;
+  }
+}
+
+body {
+  font-family: "Inter", sans-serif;
+  background-color: var(--background-overlay-color);
+  color: var(--primary-text-color);
+  display: flex;
+  flex-direction: column;
+}
+
+/* Position the logo */
+
+header {
+  padding: 4rem 7rem;
+
+  @media screen and (max-width: 800px) {
+    padding: 7rem 2rem;
+    text-align: center;
+  }
+}
+
+/* Position the source code link */
+
+footer {
+  margin: auto auto 0 auto;
+  padding: 5rem;
+
+  & > p.source a {
+    font-size: 1.6rem;
+    font-weight: 700;
+    letter-spacing: -0.1rem;
+    color: var(--theme-green);
+    text-underline-offset: 0.3rem;
+    transition: text-underline-offset 0.2s;
+
+    &:hover {
+      color: var(--theme-pink);
+      text-underline-offset: 0.5rem;
+    }
+  }
+
+  @media screen and (max-width: 800px) {
+    padding: 4rem;
+  }
+}

web/assets/styling/main.css

@@ -0,0 +1,58 @@
+/* Texts on the front page */
+
+main {
+  text-align: center;
+  padding: 0 2rem;
+  flex: 1;
+
+  & > h1 {
+    margin: 0.2rem;
+    font-size: 3.6rem;
+    font-weight: 400;
+    letter-spacing: -0.2rem;
+    color: var(--primary-text-color);
+  }
+
+  & p {
+    margin-top: 8rem;
+    font-size: 1.6rem;
+    line-height: 2.5rem;
+    font-weight: 400;
+    letter-spacing: -0.1rem;
+    color: var(--secondary-text-color);
+
+    &#privacy-warning {
+      min-height: 5.3rem;
+
+      & > span {
+        font-weight: 700;
+        color: var(--theme-green);
+      }
+      &.hidden {
+        opacity: 0;
+        pointer-events: none;
+      }
+    }
+  }
+
+  & > p.tagline {
+    margin-top: 0;
+    margin-bottom: 6rem;
+    font-size: 2rem;
+    color: var(--tagline-text-color);
+  }
+
+  & a {
+    font-size: 1.6rem;
+    font-weight: 700;
+    letter-spacing: -0.1rem;
+    color: var(--secondary-text-color);
+    text-underline-offset: 0.3rem;
+    transition: text-underline-offset 0.2s;
+
+    &:hover {
+      color: var(--theme-green);
+      text-underline-offset: 0.5rem;
+    }
+  }
+}

web/assets/styling/results.css

@@ -0,0 +1,260 @@
+/* Variables */
+
+:root {
+  --gauge-width: 32rem;
+  --gauge-height: 22rem;
+  --progress-width: 0.6rem;
+  --speed-width: 3rem;
+}
+
+/* Layout for the gauges */
+
+.gauge-layout {
+  display: flex;
+  flex-direction: row;
+  align-items: start;
+  justify-content: center;
+  gap: 5rem;
+  margin: 5rem auto 3rem auto;
+
+  @media screen and (max-width: 1100px) {
+    display: grid;
+    grid-template-areas:
+      "download upload"
+      "ping jitter";
+    justify-items: center;
+    justify-content: center;
+
+    --gauge-width: min(40vw, 32rem);
+    --gauge-height: min(28vw, 22rem);
+    --progress-width: min(1.2vw, 0.6rem);
+    --speed-width: min(4vw, 3rem);
+  }
+  @media screen and (max-width: 500px) {
+    gap: 5rem 2rem;
+  }
+}
+
+/* The download/upload speed gauges */
+
+/**
+ * One thing I should really document here is the weird `transform: scale(1);`
+ * and `position: fixed` in this code. This is a nasty little trick to allow the
+ * gauge pointer to break out of the `overflow: hidden` of the .speed element.
+ * We need the `overflow: hidden` to hide the arc that's rotating into view when
+ * the value goes up. But we do want to see the full pointer, even when it's at
+ * zero. This degrades fairly gracefully into showing half of the pointer when
+ * browsers don't understand this.
+ *
+ * Trick taken from this article:
+ * https://medium.com/@thomas.ryu/css-overriding-the-parents-overflow-hidden-90c75a0e7296
+ */
+
+div.gauge {
+  position: relative;
+  transform: scale(1);
+  width: var(--gauge-width);
+  height: var(--gauge-height);
+
+  &.download {
+    grid-area: download;
+  }
+  &.upload {
+    grid-area: upload;
+  }
+
+  & > .progress,
+  & > .speed {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: var(--gauge-width);
+    height: calc(var(--gauge-width) / 2);
+    overflow: hidden;
+
+    &:after,
+    &:before {
+      content: "";
+      position: absolute;
+      box-sizing: border-box;
+    }
+  }
+
+  & > .progress {
+    &:before,
+    &:after {
+      top: 0;
+      left: 0;
+      width: var(--gauge-width);
+      height: calc(var(--gauge-width) / 2);
+
+      border-radius: 50% 50% 0 0 / 100% 100% 0 0;
+      border: var(--progress-width) solid var(--gauge-background-color);
+      border-bottom: 0;
+
+      transform-origin: bottom center;
+      transform: rotate(var(--progress-rotation));
+      transition: transform 0.2s linear;
+    }
+    &:after {
+      top: calc(var(--gauge-width) / 2);
+
+      border-radius: 0 0 50% 50% / 0 0 100% 100%;
+      border: var(--progress-width) solid var(--gauge-background-color);
+      border-top: 0;
+
+      transform-origin: top center;
+    }
+  }
+
+  & > .speed {
+    &:before,
+    &:after {
+      transform: rotate(var(--speed-rotation));
+      transition: transform 0.2s ease;
+      transition-timing-function: cubic-bezier(0.56, 0.04, 0.59, 0.91);
+    }
+    &:before {
+      position: fixed;
+      top: calc(var(--gauge-width) / 2 - var(--speed-width) / 3);
+      left: var(--progress-width);
+      width: 0;
+      height: 0;
+
+      border-top: calc(var(--speed-width) / 3) solid transparent;
+      border-bottom: calc(var(--speed-width) / 3) solid transparent;
+      border-right: calc(var(--speed-width) * 0.97) solid
+        var(--gauge-background-color);
+      z-index: 1;
+
+      transform-origin: calc(var(--gauge-width) / 2 - var(--progress-width))
+        calc(var(--speed-width) / 3);
+    }
+    &:after {
+      top: calc(var(--gauge-width) / 2);
+      left: calc(var(--progress-width) - 0.1rem);
+      width: calc(var(--gauge-width) - var(--progress-width) * 2 + 0.2rem);
+      height: calc(var(--gauge-width) / 2 - var(--progress-width) + 0.1rem);
+
+      border-radius: 0 0 50% 50% / 0 0 100% 100%;
+      border: var(--speed-width) solid var(--gauge-background-color);
+      border-top: 0;
+
+      transform-origin: top center;
+    }
+  }
+
+  &.enabled {
+    &.download {
+      & > .progress:after {
+        border-color: var(--theme-pink);
+      }
+      & > .speed {
+        &:before {
+          border-right-color: var(--gauge-pointer-pink);
+        }
+        &:after {
+          border-color: var(--theme-pink);
+        }
+      }
+    }
+    &.upload {
+      & > .progress:after {
+        border-color: var(--theme-green);
+      }
+      & > .speed {
+        &:before {
+          border-right-color: var(--gauge-pointer-green);
+        }
+        &:after {
+          border-color: var(--theme-green);
+        }
+      }
+    }
+    & > h1 > span {
+      color: var(--primary-text-color);
+    }
+  }
+
+  & > h1,
+  & > h2 {
+    display: block;
+    position: absolute;
+    width: 100%;
+    font-family: "Inter", sans-serif;
+    font-size: 2.1rem;
+    letter-spacing: -0.1rem;
+    color: var(--secondary-text-color);
+  }
+  & > h1 {
+    bottom: calc(var(--gauge-height) - var(--gauge-width) / 2);
+    font-weight: 300;
+
+    & > span {
+      font-size: 5.5rem;
+      font-weight: 200;
+      display: block;
+      color: var(--secondary-text-color);
+      letter-spacing: -0.3rem;
+    }
+  }
+  & > h2 {
+    bottom: 0;
+    font-weight: 700;
+    text-transform: uppercase;
+  }
+
+  @media screen and (max-width: 500px) {
+    & > h1 {
+      font-size: 3vw;
+
+      & > span {
+        font-size: 8vw;
+      }
+    }
+
+    & > h2 {
+      font-size: 3vw;
+    }
+  }
+}
+
+/* Styling for Ping and Jitter */
+
+.ping,
+.jitter {
+  grid-area: jitter;
+  display: flex;
+  align-items: end;
+  height: calc(var(--gauge-width) / 2);
+  width: 13rem;
+
+  font-size: 2.1rem;
+  letter-spacing: -0.1rem;
+  font-weight: 300;
+  color: var(--ping-and-jitter-secondary-text-color);
+
+  & > .label {
+    font-weight: 700;
+  }
+  & > .value {
+    color: var(--ping-and-jitter-primary-text-color);
+  }
+
+  &.hidden {
+    display: none;
+  }
+
+  @media screen and (max-width: 1100px) {
+    width: 100%;
+    height: auto;
+    justify-content: center !important;
+  }
+  @media screen and (max-width: 500px) {
+    font-size: 1.8rem;
+  }
+}
+.ping {
+  grid-area: ping;
+  justify-content: end;
+}

web/assets/styling/server-selector.css

@@ -0,0 +1,171 @@
+/* The server selector fake dropdown */
+
+.server-selector {
+  position: relative;
+  width: 50rem;
+  margin: 0rem auto;
+  display: none;
+
+  &.active {
+    display: block;
+  }
+
+  @media screen and (max-width: 500px) {
+    width: 100%;
+  }
+
+  & > .chosen {
+    position: relative;
+    height: 8.8rem;
+
+    border: 1px solid var(--server-selector-border-color);
+    border-radius: 0.8rem;
+    background-color: var(--server-selector-background-color);
+    cursor: pointer;
+    transition: border-color 0.2s;
+
+    &:hover {
+      border-color: var(--server-selector-hover-border-color);
+    }
+
+    & > div.chevron {
+      content: "";
+      position: absolute;
+      display: block;
+      width: 32px;
+      height: 32px;
+      right: 1.8rem;
+      top: 1rem;
+    }
+
+    & > p {
+      margin: 0;
+      position: absolute;
+      left: 2.4rem;
+      top: 1.5rem;
+      font-size: 1.6rem;
+      font-weight: 400;
+      letter-spacing: -0.1rem;
+      color: var(--theme-green);
+    }
+
+    & > h2 {
+      position: absolute;
+      left: 2.4rem;
+      right: 2.4rem;
+      bottom: 1rem;
+
+      font-size: 2.4rem;
+      font-weight: 700;
+      letter-spacing: -0.2rem;
+      color: var(--primary-text-color);
+      text-align: left;
+      text-transform: uppercase;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+      overflow: hidden;
+
+      & span {
+        font-weight: 400;
+      }
+    }
+  }
+
+  /* Special case for when we have only one server */
+  &.single-server {
+    & > .chosen {
+      cursor: default;
+      &:hover {
+        border-color: var(--server-selector-border-color);
+      }
+      & > div.chevron {
+        display: none;
+      }
+    }
+  }
+
+  /* Overrides for when the test is running and the selector is disabled */
+  &.disabled {
+    pointer-events: none;
+
+    & > .chosen {
+      cursor: default;
+      &:hover {
+        border-color: var(--server-selector-border-color);
+      }
+      & > p {
+        color: var(--secondary-text-disabled-color);
+      }
+      & > h2 {
+        color: var(--primary-text-disabled-color);
+      }
+    }
+  }
+
+  /* Styling for the list of servers that pops out */
+  & > ul.servers {
+    position: absolute;
+    width: 50rem;
+    max-height: 70vh;
+    overflow-y: auto;
+    z-index: 1;
+
+    border: 1px solid var(--server-selector-border-color);
+    border-radius: 0.8rem;
+    background-color: var(--server-selector-background-color);
+    list-style: none;
+
+    transform: scaleY(0);
+    transform-origin: top;
+    transition: transform 0.1s;
+
+    &.active {
+      transform: scaleY(1);
+    }
+
+    @media screen and (max-width: 800px) {
+      width: 100%;
+    }
+
+    & > li {
+      &:first-child a {
+        padding-top: 1.5rem;
+      }
+      &:last-child a {
+        padding-bottom: 1.5rem;
+      }
+
+      & a {
+        display: block;
+        padding: 0.7rem 2.4rem;
+
+        font-size: 2.4rem;
+        font-weight: 700;
+        letter-spacing: -0.2rem;
+        color: var(--sprint-text-color);
+        text-transform: uppercase;
+        text-decoration: none;
+        text-align: left;
+        cursor: pointer;
+
+        transition: background-color 0.2s;
+
+        & span {
+          font-weight: 400;
+        }
+        &:hover {
+          background-color: var(--server-selector-hover-background-color);
+        }
+      }
+    }
+  }
+
+  /* Styling for the sponsor text under the dropdown */
+  & > p.sponsor {
+    margin: 1rem 0 5rem 0;
+
+    & a {
+      font-weight: 400;
+    }
+  }
+}

web/fs.go

@@ -0,0 +1,54 @@
+package web
+
+import (
+	"io"
+	"net/http"
+	"os"
+)
+
+// Credit: https://stackoverflow.com/questions/49589685/good-way-to-disable-directory-listing-with-http-fileserver-in-go
+type justFilesFilesystem struct {
+	fs http.FileSystem
+	// readDirBatchSize - configuration parameter for `Readdir` func
+	readDirBatchSize int
+}
+
+func (fs justFilesFilesystem) Open(name string) (http.File, error) {
+	f, err := fs.fs.Open(name)
+	if err != nil {
+		return nil, err
+	}
+	return neuteredStatFile{File: f, readDirBatchSize: fs.readDirBatchSize}, nil
+}
+
+type neuteredStatFile struct {
+	http.File
+	readDirBatchSize int
+}
+
+func (e neuteredStatFile) Stat() (os.FileInfo, error) {
+	s, err := e.File.Stat()
+	if err != nil {
+		return nil, err
+	}
+	if s.IsDir() {
+	LOOP:
+		for {
+			fl, err := e.File.Readdir(e.readDirBatchSize)
+			switch err {
+			case io.EOF:
+				break LOOP
+			case nil:
+				for _, f := range fl {
+					if f.Name() == "index.html" {
+						return s, err
+					}
+				}
+			default:
+				return nil, err
+			}
+		}
+		return nil, os.ErrNotExist
+	}
+	return s, err
+}

web/getip_util.go

@@ -0,0 +1,120 @@
+package web
+
+import (
+	"net"
+	"net/http"
+	"regexp"
+	"strings"
+)
+
+// normalizeCandidateIP validates and normalizes an IP address candidate
+// from a request header. It trims whitespace, takes the first comma-separated
+// token (for XFF-like headers that may contain a chain), and validates.
+func normalizeCandidateIP(raw string, ipv6 bool) string {
+	ip := strings.TrimSpace(raw)
+	// For XFF-like values, take the first address before a comma
+	if idx := strings.Index(ip, ","); idx != -1 {
+		ip = strings.TrimSpace(ip[:idx])
+	}
+	if ip == "" {
+		return ""
+	}
+	if ipv6 {
+		parsed := net.ParseIP(ip)
+		if parsed != nil && parsed.To16() != nil && parsed.To4() == nil {
+			return strings.TrimPrefix(ip, "::ffff:")
+		}
+		return ""
+	}
+	parsed := net.ParseIP(ip)
+	if parsed != nil {
+		return strings.TrimPrefix(ip, "::ffff:")
+	}
+	return ""
+}
+
+// getClientIP extracts the real client IP from the request using the following
+// priority chain, mirroring the PHP getIP_util.php behavior:
+//
+//  1. CF-Connecting-IPv6 (Cloudflare, must be a valid IPv6)
+//  2. Client-IP
+//  3. X-Real-IP
+//  4. X-Forwarded-For (first address in the chain)
+//  5. RemoteAddr (fallback)
+func getClientIP(r *http.Request) string {
+	// 1. Cloudflare IPv6 header — must be a valid IPv6 address
+	if cf := r.Header.Get("CF-Connecting-IPv6"); cf != "" {
+		if ip := normalizeCandidateIP(cf, true); ip != "" {
+			return strings.TrimPrefix(ip, "::ffff:")
+		}
+	}
+
+	// 2–4. Other forwarding / proxy headers — accept any valid IP
+	for _, header := range []string{"Client-IP", "X-Real-IP", "X-Forwarded-For"} {
+		if v := r.Header.Get(header); v != "" {
+			if ip := normalizeCandidateIP(v, false); ip != "" {
+				return strings.TrimPrefix(ip, "::ffff:")
+			}
+		}
+	}
+
+	// 5. Fallback: RemoteAddr set by the server
+	ip, _, err := net.SplitHostPort(r.RemoteAddr)
+	if err != nil {
+		// RemoteAddr may not have a port in some environments
+		ip = r.RemoteAddr
+	}
+	if parsed := net.ParseIP(ip); parsed != nil {
+		return strings.TrimPrefix(ip, "::ffff:")
+	}
+
+	return ""
+}
+
+// classifyPrivateIP returns a human-readable description if the IP is a
+// private or special-purpose address, or an empty string otherwise.
+// Mirrors the PHP getLocalOrPrivateIpInfo() function.
+func classifyPrivateIP(ip string) string {
+	// Strip IPv4-mapped IPv6 prefix if present
+	ip = strings.TrimPrefix(ip, "::ffff:")
+
+	switch {
+	case ip == "::1":
+		return "localhost IPv6 access"
+	case strings.HasPrefix(ip, "fe80:"):
+		return "link-local IPv6 access"
+	// ULA IPv6 (fc00::/7): fc00:: - fdff:ffff:...
+	case isULAIPv6(ip):
+		return "ULA IPv6 access"
+	case strings.HasPrefix(ip, "127."):
+		return "localhost IPv4 access"
+	case strings.HasPrefix(ip, "10."):
+		return "private IPv4 access"
+	case mustCompile(`^172\.(1[6-9]|2\d|3[01])\.`).MatchString(ip):
+		return "private IPv4 access"
+	case strings.HasPrefix(ip, "192.168"):
+		return "private IPv4 access"
+	case strings.HasPrefix(ip, "169.254"):
+		return "link-local IPv4 access"
+	case mustCompile(`^100\.([6-9][0-9]|1[0-2][0-7])\.`).MatchString(ip):
+		return "CGNAT IPv4 access"
+	}
+	return ""
+}
+
+// isULAIPv6 checks if an IP is a Unique Local IPv6 Unicast Address (fc00::/7).
+func isULAIPv6(ipStr string) bool {
+	ip := net.ParseIP(ipStr)
+	if ip == nil || ip.To16() == nil {
+		return false
+	}
+	// fc00::/7 means the first 7 bits are 1111110
+	// So the first byte & 0xFE must equal 0xFC
+	return ip[0]&0xFE == 0xFC
+}
+
+// mustCompile is a helper that compiles a regex and panics on error
+// (safe to use for static patterns).
+func mustCompile(pattern string) *regexp.Regexp {
+	return regexp.MustCompile(pattern)
+}

web/helpers.go

@@ -5,19 +5,22 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
-	"math"
+	"net"
 	"net/http"
+	"os"
 	"strconv"
 	"strings"
 
-	"github.com/librespeed/speedtest/config"
-	"github.com/librespeed/speedtest/results"
-
+	"github.com/oschwald/maxminddb-golang"
 	log "github.com/sirupsen/logrus"
+	"github.com/umahmood/haversine"
+
+	"github.com/librespeed/speedtest-go/config"
+	"github.com/librespeed/speedtest-go/results"
 )
 
 var (
-	serverLat, serverLng float64
+	serverCoord haversine.Coord
 )
 
 func getRandomData(length int) []byte {
@@ -67,95 +70,220 @@ func getIPInfo(addr string) results.IPInfoResponse {
 	return ret
 }
 
-func SetServerLocation(conf *config.Config) (float64, float64) {
-	if conf.ServerLat > 0 && conf.ServerLng > 0 {
+func SetServerLocation(conf *config.Config) {
+	if conf.ServerLat != 0 || conf.ServerLng != 0 {
 		log.Infof("Configured server coordinates: %.6f, %.6f", conf.ServerLat, conf.ServerLng)
-		return conf.ServerLat, conf.ServerLng
+		serverCoord.Lat = conf.ServerLat
+		serverCoord.Lon = conf.ServerLng
+		return
 	}
 
 	var ret results.IPInfoResponse
 	resp, err := http.DefaultClient.Get(getIPInfoURL(""))
 	if err != nil {
 		log.Errorf("Error getting repsonse from ipinfo.io: %s", err)
-		return 0, 0
+		return
 	}
 	raw, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		log.Errorf("Error reading response from ipinfo.io: %s", err)
-		return 0, 0
+		return
 	}
 	defer resp.Body.Close()
 
 	if err := json.Unmarshal(raw, &ret); err != nil {
 		log.Errorf("Error parsing response from ipinfo.io: %s", err)
-		return 0, 0
+		return
 	}
 
-	var lat, lng float64
 	if ret.Location != "" {
-		lat, lng = parseLocationString(ret.Location)
+		serverCoord, err = parseLocationString(ret.Location)
+		if err != nil {
+			log.Errorf("Cannot get server coordinates: %s", err)
+			return
+		}
 	}
 
-	log.Infof("Fetched server coordinates: %.6f, %.6f", lat, lng)
-
-	return lat, lng
+	log.Infof("Fetched server coordinates: %.6f, %.6f", serverCoord.Lat, serverCoord.Lon)
 }
 
-func parseLocationString(location string) (float64, float64) {
+func parseLocationString(location string) (haversine.Coord, error) {
+	var coord haversine.Coord
+
 	parts := strings.Split(location, ",")
 	if len(parts) != 2 {
-		log.Errorf("Unknown location format: %s", location)
-		return 0, 0
+		err := fmt.Errorf("unknown location format: %s", location)
+		log.Error(err)
+		return coord, err
 	}
 
 	lat, err := strconv.ParseFloat(parts[0], 64)
 	if err != nil {
 		log.Errorf("Error parsing latitude: %s", parts[0])
-		return 0, 0
+		return coord, err
 	}
 
 	lng, err := strconv.ParseFloat(parts[1], 64)
 	if err != nil {
 		log.Errorf("Error parsing longitude: %s", parts[0])
-		return 0, 0
+		return coord, err
 	}
 
-	return lat, lng
+	coord.Lat = lat
+	coord.Lon = lng
+
+	return coord, nil
 }
 
 func calculateDistance(clientLocation string, unit string) string {
-	clientLat, clientLng := parseLocationString(clientLocation)
-
-	radlat1 := float64(math.Pi * serverLat / 180)
-	radlat2 := float64(math.Pi * clientLat / 180)
-
-	theta := float64(serverLng - clientLng)
-	radtheta := float64(math.Pi * theta / 180)
-
-	dist := math.Sin(radlat1)*math.Sin(radlat2) + math.Cos(radlat1)*math.Cos(radlat2)*math.Cos(radtheta)
-
-	if dist > 1 {
-		dist = 1
+	clientCoord, err := parseLocationString(clientLocation)
+	if err != nil {
+		log.Errorf("Error parsing client coordinates: %s", err)
+		return ""
 	}
 
-	dist = math.Acos(dist)
-	dist = dist * 180 / math.Pi
-	dist = dist * 60 * 1.1515
+	dist, km := haversine.Distance(clientCoord, serverCoord)
 
-	unitString := " mi"
 	switch unit {
 	case "km":
-		dist = dist * 1.609344
-		unitString = " km"
+		dist = km
+		rounded := roundToNearest10(dist)
+		if dist < 20 {
+			return "<20 km"
+		}
+		return fmt.Sprintf("%.0f km", rounded)
 	case "NM":
-		dist = dist * 0.8684
-		unitString = " NM"
+		dist = km * 0.539957
+		return fmt.Sprintf("%.2f NM", dist)
+	default: // miles
+		distMi := dist
+		rounded := roundToNearest10(distMi)
+		if distMi < 15 {
+			return "<15 mi"
+		}
+		return fmt.Sprintf("%.0f mi", rounded)
+	}
+}
+
+// roundToNearest10 rounds a float64 to the nearest 10, matching PHP round($d, -1)
+func roundToNearest10(val float64) float64 {
+	return float64(int64(val/10+0.5)) * 10
+}
+
+// GeoIP database holder (lazily opened on first use)
+var (
+	geoIPReader *maxminddb.Reader
+	geoIPOpened bool
+)
+
+// getGeoIPData looks up the given IP in the configured GeoIP .mmdb database
+// and returns ISP and country information if available.
+// It returns nil if GeoIP is not configured or the lookup fails.
+func getGeoIPData(ipStr string) *struct {
+	ASName      string
+	CountryName string
+} {
+	conf := config.LoadedConfig()
+	if conf.GeoIPDatabaseFile == "" {
+		return nil
 	}
 
-	return fmt.Sprintf("%d%s", round(dist), unitString)
+	if !geoIPOpened {
+		geoIPOpened = true
+		if _, err := os.Stat(conf.GeoIPDatabaseFile); os.IsNotExist(err) {
+			log.Warnf("GeoIP database file not found: %s", conf.GeoIPDatabaseFile)
+			return nil
+		}
+		reader, err := maxminddb.Open(conf.GeoIPDatabaseFile)
+		if err != nil {
+			log.Warnf("Failed to open GeoIP database: %s", err)
+			return nil
+		}
+		geoIPReader = reader
+	}
+
+	if geoIPReader == nil {
+		return nil
+	}
+
+	ip := net.ParseIP(ipStr)
+	if ip == nil {
+		return nil
+	}
+
+	// Try ipinfo.io offline database format first
+	var ipinfoResult map[string]interface{}
+	if err := geoIPReader.Lookup(ip, &ipinfoResult); err != nil {
+		log.Warnf("GeoIP lookup failed: %s", err)
+		return nil
+	}
+
+	if len(ipinfoResult) == 0 {
+		return nil
+	}
+
+	result := &struct {
+		ASName      string
+		CountryName string
+	}{}
+
+	// ipinfo.io offline format uses "as_name" and "country_name"
+	if v, ok := ipinfoResult["as_name"].(string); ok {
+		result.ASName = v
+	}
+	if v, ok := ipinfoResult["country_name"].(string); ok {
+		result.CountryName = v
+	}
+
+	// If ipinfo format fields are empty, try standard MaxMind GeoIP2 format
+	if result.ASName == "" {
+		// Try autonomous_system > organization
+		if as, ok := ipinfoResult["autonomous_system"].(map[string]interface{}); ok {
+			if v, ok := as["organization"].(string); ok {
+				result.ASName = v
+			}
+		}
+	}
+	if result.CountryName == "" {
+		if country, ok := ipinfoResult["country"].(map[string]interface{}); ok {
+			if v, ok := country["names"].(map[string]interface{}); ok {
+				if n, ok := v["en"].(string); ok {
+					result.CountryName = n
+				}
+			}
+		}
+		// Fallback: direct "country" string field (as used by some GeoIP DBs)
+		if result.CountryName == "" {
+			if v, ok := ipinfoResult["country"].(string); ok {
+				result.CountryName = v
+			}
+		}
+	}
+
+	if result.ASName == "" && result.CountryName == "" {
+		return nil
+	}
+
+	return result
 }
 
-func round(v float64) int {
-	r := int(math.Round(v))
-	return 10 * ((r + 9) / 10)
+// getISPInfoByPriority tries to fetch ISP info using the ipinfo.io API first,
+// then falls back to the configured offline GeoIP database, mirroring PHP behavior.
+func getISPInfoByPriority(addr string) results.IPInfoResponse {
+	// First try: ipinfo.io API
+	info := getIPInfo(addr)
+	if info.Organization != "" || info.Country != "" {
+		return info
+	}
+
+	// Second try: offline GeoIP database
+	geo := getGeoIPData(addr)
+	if geo != nil {
+		info.Organization = geo.ASName
+		info.Country = geo.CountryName
+		return info
+	}
+
+	// Fallback: empty result (will show IP only)
+	return info
 }

web/listener.go

@@ -0,0 +1,42 @@
+//go:build !linux
+// +build !linux
+
+package web
+
+import (
+	"crypto/tls"
+	"github.com/go-chi/chi/v5"
+	"github.com/librespeed/speedtest-go/config"
+	log "github.com/sirupsen/logrus"
+	"net"
+	"net/http"
+)
+
+func startListener(conf *config.Config, r *chi.Mux) error {
+	var s error
+
+	addr := net.JoinHostPort(conf.BindAddress, conf.Port)
+	log.Infof("Starting backend server on %s", addr)
+
+	// TLS and HTTP/2.
+	if conf.EnableTLS {
+		log.Info("Use TLS connection.")
+		if !(conf.EnableHTTP2) {
+			srv := &http.Server{
+				Addr:         addr,
+				Handler:      r,
+				TLSNextProto: make(map[string]func(*http.Server, *tls.Conn, http.Handler)),
+			}
+			s = srv.ListenAndServeTLS(conf.TLSCertFile, conf.TLSKeyFile)
+		} else {
+			s = http.ListenAndServeTLS(addr, conf.TLSCertFile, conf.TLSKeyFile, r)
+		}
+	} else {
+		if conf.EnableHTTP2 {
+			log.Errorf("TLS is mandatory for HTTP/2. Ignore settings that enable HTTP/2.")
+		}
+		s = http.ListenAndServe(addr, r)
+	}
+
+	return s
+}

web/listener_linux.go

@@ -0,0 +1,60 @@
+//go:build linux
+// +build linux
+
+package web
+
+import (
+	"crypto/tls"
+	"github.com/coreos/go-systemd/v22/activation"
+	"github.com/go-chi/chi/v5"
+	"github.com/librespeed/speedtest-go/config"
+	log "github.com/sirupsen/logrus"
+	"net"
+	"net/http"
+)
+
+func startListener(conf *config.Config, r *chi.Mux) error {
+	// See if systemd socket activation has been used when starting our process
+	listeners, err := activation.Listeners()
+	if err != nil {
+		log.Fatalf("Error whilst checking for systemd socket activation %s", err)
+	}
+
+	var s error
+
+	switch len(listeners) {
+	case 0:
+		addr := net.JoinHostPort(conf.BindAddress, conf.Port)
+		log.Infof("Starting backend server on %s", addr)
+
+		// TLS and HTTP/2.
+		if conf.EnableTLS {
+			log.Info("Use TLS connection.")
+			if !(conf.EnableHTTP2) {
+				srv := &http.Server{
+					Addr:         addr,
+					Handler:      r,
+					TLSNextProto: make(map[string]func(*http.Server, *tls.Conn, http.Handler)),
+				}
+				s = srv.ListenAndServeTLS(conf.TLSCertFile, conf.TLSKeyFile)
+			} else {
+				s = http.ListenAndServeTLS(addr, conf.TLSCertFile, conf.TLSKeyFile, r)
+			}
+		} else {
+			if conf.EnableHTTP2 {
+				log.Errorf("TLS is mandatory for HTTP/2. Ignore settings that enable HTTP/2.")
+			}
+			s = http.ListenAndServe(addr, r)
+		}
+	case 1:
+		log.Info("Starting backend server on inherited file descriptor via systemd socket activation")
+		if conf.BindAddress != "" || conf.Port != "" {
+			log.Errorf("Both an address/port (%s:%s) has been specificed in the config AND externally configured socket activation has been detected", conf.BindAddress, conf.Port)
+			log.Fatal(`Please deconfigure socket activation (e.g. in systemd unit files), or set both 'bind_address' and 'listen_port' to ''`)
+		}
+		s = http.Serve(listeners[0], r)
+	default:
+		log.Fatalf("Asked to listen on %d sockets via systemd activation.  Sorry we currently only support listening on 1 socket.", len(listeners))
+	}
+	return s
+}

web/web.go

@@ -1,23 +1,26 @@
 package web
 
 import (
+	"embed"
 	"encoding/json"
 	"io"
+	"io/fs"
 	"io/ioutil"
 	"net"
 	"net/http"
+	"os"
 	"regexp"
 	"strconv"
-	"strings"
 
-	"github.com/go-chi/chi"
-	"github.com/go-chi/chi/middleware"
+	"github.com/go-chi/chi/v5"
+	"github.com/go-chi/chi/v5/middleware"
 	"github.com/go-chi/cors"
 	"github.com/go-chi/render"
+	"github.com/pires/go-proxyproto"
 	log "github.com/sirupsen/logrus"
 
-	"github.com/librespeed/speedtest/config"
-	"github.com/librespeed/speedtest/results"
+	"github.com/librespeed/speedtest-go/config"
+	"github.com/librespeed/speedtest-go/results"
 )
 
 const (
@@ -25,81 +28,138 @@ const (
 	chunkSize = 1048576
 )
 
+//go:embed assets
+var defaultAssets embed.FS
+
 var (
 	// generate random data for download test on start to minimize runtime overhead
 	randomData = getRandomData(chunkSize)
 )
 
 func ListenAndServe(conf *config.Config) error {
-	r := chi.NewMux()
+	r := chi.NewRouter()
 	r.Use(middleware.RealIP)
+	r.Use(middleware.GetHead)
 
 	cs := cors.New(cors.Options{
 		AllowedOrigins: []string{"*"},
-		AllowedMethods: []string{"GET", "POST", "OPTIONS"},
+		AllowedMethods: []string{"GET", "POST", "OPTIONS", "HEAD"},
 		AllowedHeaders: []string{"*"},
 	})
 
 	r.Use(cs.Handler)
 	r.Use(middleware.NoCache)
-	r.Use(middleware.Logger)
+	r.Use(middleware.Recoverer)
 
-	log.Infof("Starting backend server on %s", net.JoinHostPort(conf.BindAddress, conf.Port))
-	r.Get("/*", pages)
-	r.HandleFunc("/empty", empty)
-	r.HandleFunc("/backend/empty", empty)
-	r.Get("/garbage", garbage)
-	r.Get("/backend/garbage", garbage)
-	r.Get("/getIP", getIP)
-	r.Get("/backend/getIP", getIP)
-	r.Get("/results", results.DrawPNG)
-	r.Get("/results/", results.DrawPNG)
-	r.Get("/backend/results", results.DrawPNG)
-	r.Get("/backend/results/", results.DrawPNG)
-	r.Post("/results/telemetry", results.Record)
-	r.Post("/backend/results/telemetry", results.Record)
-	r.HandleFunc("/stats", results.Stats)
-	r.HandleFunc("/backend/stats", results.Stats)
+	var assetFS http.FileSystem
+	if fi, err := os.Stat(conf.AssetsPath); os.IsNotExist(err) || !fi.IsDir() {
+		log.Warnf("Configured asset path %s does not exist or is not a directory, using default assets", conf.AssetsPath)
+		sub, err := fs.Sub(defaultAssets, "assets")
+		if err != nil {
+			log.Fatalf("Failed when processing default assets: %s", err)
+		}
+		assetFS = http.FS(sub)
+	} else {
+		assetFS = justFilesFilesystem{fs: http.Dir(conf.AssetsPath), readDirBatchSize: 2}
+	}
+
+	r.Get(conf.BaseURL+"/*", pages(assetFS, conf.BaseURL))
+	r.HandleFunc(conf.BaseURL+"/empty", empty)
+	r.HandleFunc(conf.BaseURL+"/backend/empty", empty)
+	r.Get(conf.BaseURL+"/garbage", garbage)
+	r.Get(conf.BaseURL+"/backend/garbage", garbage)
+	r.Get(conf.BaseURL+"/getIP", getIP)
+	r.Get(conf.BaseURL+"/backend/getIP", getIP)
+	r.Get(conf.BaseURL+"/results", results.DrawPNG)
+	r.Get(conf.BaseURL+"/results/", results.DrawPNG)
+	r.Get(conf.BaseURL+"/backend/results", results.DrawPNG)
+	r.Get(conf.BaseURL+"/backend/results/", results.DrawPNG)
+	r.Post(conf.BaseURL+"/results/telemetry", results.Record)
+	r.Post(conf.BaseURL+"/backend/results/telemetry", results.Record)
+	r.HandleFunc(conf.BaseURL+"/stats", results.Stats)
+	r.HandleFunc(conf.BaseURL+"/backend/stats", results.Stats)
+	r.Get(conf.BaseURL+"/results/json", results.JSONResult)
+	r.Get(conf.BaseURL+"/backend/results/json", results.JSONResult)
 
 	// PHP frontend default values compatibility
-	r.HandleFunc("/empty.php", empty)
-	r.HandleFunc("/backend/empty.php", empty)
-	r.Get("/garbage.php", garbage)
-	r.Get("/backend/garbage.php", garbage)
-	r.Get("/getIP.php", getIP)
-	r.Get("/backend/getIP.php", getIP)
-	r.Post("/results/telemetry.php", results.Record)
-	r.Post("/backend/results/telemetry.php", results.Record)
-	r.HandleFunc("/stats.php", results.Stats)
-	r.HandleFunc("/backend/stats.php", results.Stats)
+	r.HandleFunc(conf.BaseURL+"/empty.php", empty)
+	r.HandleFunc(conf.BaseURL+"/backend/empty.php", empty)
+	r.Get(conf.BaseURL+"/garbage.php", garbage)
+	r.Get(conf.BaseURL+"/backend/garbage.php", garbage)
+	r.Get(conf.BaseURL+"/getIP.php", getIP)
+	r.Get(conf.BaseURL+"/backend/getIP.php", getIP)
+	r.Post(conf.BaseURL+"/results/telemetry.php", results.Record)
+	r.Post(conf.BaseURL+"/backend/results/telemetry.php", results.Record)
+	r.HandleFunc(conf.BaseURL+"/stats.php", results.Stats)
+	r.HandleFunc(conf.BaseURL+"/backend/stats.php", results.Stats)
+	r.Get(conf.BaseURL+"/results/json.php", results.JSONResult)
+	r.Get(conf.BaseURL+"/backend/results/json.php", results.JSONResult)
 
-	return http.ListenAndServe(net.JoinHostPort(conf.BindAddress, conf.Port), r)
+	go listenProxyProtocol(conf, r)
+
+	return startListener(conf, r)
 }
 
-func pages(w http.ResponseWriter, r *http.Request) {
+func listenProxyProtocol(conf *config.Config, r *chi.Mux) {
+	if conf.ProxyProtocolPort != "0" {
+		addr := net.JoinHostPort(conf.BindAddress, conf.ProxyProtocolPort)
+		l, err := net.Listen("tcp", addr)
+		if err != nil {
+			log.Fatalf("Cannot listen on proxy protocol port %s: %s", conf.ProxyProtocolPort, err)
+		}
+
+		pl := &proxyproto.Listener{Listener: l}
+		defer pl.Close()
+
+		log.Infof("Starting proxy protocol listener on %s", addr)
+		log.Fatal(http.Serve(pl, r))
+	}
+}
+
+func pages(fs http.FileSystem, BaseURL string) http.HandlerFunc {
+	var removeBaseURL *regexp.Regexp
+	if BaseURL != "" {
+		removeBaseURL = regexp.MustCompile("^" + BaseURL + "/")
+	}
+	fn := func(w http.ResponseWriter, r *http.Request) {
+		if BaseURL != "" {
+			r.URL.Path = removeBaseURL.ReplaceAllString(r.URL.Path, "/")
+		}
 		if r.RequestURI == "/" {
 			r.RequestURI = "/index.html"
 		}
 
-	conf := config.LoadedConfig()
+		http.FileServer(fs).ServeHTTP(w, r)
+	}
 
-	uri := strings.Split(r.RequestURI, "?")[0]
-	if strings.HasSuffix(uri, ".html") || strings.HasSuffix(uri, ".js") {
-		http.FileServer(http.Dir(conf.AssetsPath)).ServeHTTP(w, r)
-	} else {
-		w.WriteHeader(http.StatusForbidden)
+	return fn
+}
+
+// sendPHPCORSHeaders sets CORS headers matching the PHP backend's ?cors parameter behavior.
+// This is for API compatibility with the PHP version; the global CORS middleware already handles CORS.
+func sendPHPCORSHeaders(w http.ResponseWriter, r *http.Request) {
+	if r.FormValue("cors") == "true" {
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+		w.Header().Set("Access-Control-Allow-Methods", "GET, POST")
+		w.Header().Set("Access-Control-Allow-Headers", "Content-Encoding, Content-Type")
 	}
 }
 
 func empty(w http.ResponseWriter, r *http.Request) {
-	io.Copy(ioutil.Discard, r.Body)
-	r.Body.Close()
+	_, err := io.Copy(ioutil.Discard, r.Body)
+	if err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	_ = r.Body.Close()
 
+	sendPHPCORSHeaders(w, r)
 	w.Header().Set("Connection", "keep-alive")
 	w.WriteHeader(http.StatusOK)
 }
 
 func garbage(w http.ResponseWriter, r *http.Request) {
+	sendPHPCORSHeaders(w, r)
 	w.Header().Set("Content-Description", "File Transfer")
 	w.Header().Set("Content-Type", "application/octet-stream")
 	w.Header().Set("Content-Disposition", "attachment; filename=random.dat")
@@ -113,7 +173,7 @@ func garbage(w http.ResponseWriter, r *http.Request) {
 		i, err := strconv.ParseInt(ckSize, 10, 64)
 		if err != nil {
 			log.Errorf("Invalid chunk size: %s", ckSize)
-			log.Warn("Will use default value %d", chunks)
+			log.Warnf("Will use default value %d", chunks)
 		} else {
 			// limit max chunk size to 1024
 			if i > 1024 {
@@ -135,37 +195,17 @@ func garbage(w http.ResponseWriter, r *http.Request) {
 func getIP(w http.ResponseWriter, r *http.Request) {
 	var ret results.Result
 
-	clientIP := r.RemoteAddr
-	clientIP = strings.ReplaceAll(clientIP, "::ffff:", "")
+	clientIP := getClientIP(r)
 
-	ip, _, err := net.SplitHostPort(r.RemoteAddr)
-	if err == nil {
-		clientIP = ip
-	}
+	// Add anti-cache headers matching PHP behavior
+	w.Header().Set("Cache-Control", "no-store, no-cache, must-revalidate, max-age=0, s-maxage=0")
+	w.Header().Add("Cache-Control", "post-check=0, pre-check=0")
+	w.Header().Set("Pragma", "no-cache")
 
-	isSpecialIP := true
-	switch {
-	case clientIP == "::1":
-		ret.ProcessedString = clientIP + " - localhost IPv6 access"
-	case strings.HasPrefix(clientIP, "fe80:"):
-		ret.ProcessedString = clientIP + " - link-local IPv6 access"
-	case strings.HasPrefix(clientIP, "127."):
-		ret.ProcessedString = clientIP + " - localhost IPv4 access"
-	case strings.HasPrefix(clientIP, "10."):
-		ret.ProcessedString = clientIP + " - private IPv4 access"
-	case regexp.MustCompile(`^172\.(1[6-9]|2\d|3[01])\.`).MatchString(clientIP):
-		ret.ProcessedString = clientIP + " - private IPv4 access"
-	case strings.HasPrefix(clientIP, "192.168"):
-		ret.ProcessedString = clientIP + " - private IPv4 access"
-	case strings.HasPrefix(clientIP, "169.254"):
-		ret.ProcessedString = clientIP + " - link-local IPv4 access"
-	case regexp.MustCompile(`^100\.([6-9][0-9]|1[0-2][0-7])\.`).MatchString(clientIP):
-		ret.ProcessedString = clientIP + " - CGNAT IPv4 access"
-	default:
-		isSpecialIP = false
-	}
+	sendPHPCORSHeaders(w, r)
 
-	if isSpecialIP {
+	if desc := classifyPrivateIP(clientIP); desc != "" {
+		ret.ProcessedString = clientIP + " - " + desc
 		b, _ := json.Marshal(&ret)
 		if _, err := w.Write(b); err != nil {
 			log.Errorf("Error writing to client: %s", err)
@@ -179,7 +219,7 @@ func getIP(w http.ResponseWriter, r *http.Request) {
 	ret.ProcessedString = clientIP
 
 	if getISPInfo {
-		ispInfo := getIPInfo(clientIP)
+		ispInfo := getISPInfoByPriority(clientIP)
 		ret.RawISPInfo = ispInfo
 
 		removeRegexp := regexp.MustCompile(`AS\d+\s`)