Allow user to specify assets path in settings

Fixes #2

README.md

@@ -95,6 +95,9 @@ manually, you can install newer version of Go into your GOPATH:
     server_lng=0
     # ipinfo.io API key, if applicable
     ipinfo_api_key=""
+   
+    # assets directory path, defaults to `assets` in the same directory
+    assets_path="./assets"
 
     # password for logging into statistics page, change this to enable stats page
     statistics_password="PASSWORD"

config/config.go

@@ -15,6 +15,8 @@ type Config struct {
 	StatsPassword string `mapstructure:"statistics_password"`
 	RedactIP      bool   `mapstructure:"redact_ip_addresses"`
 
+	AssetsPath string `mapstructure:"assets_path"`
+
 	DatabaseType     string `mapstructure:"database_type"`
 	DatabaseHostname string `mapstructure:"database_hostname"`
 	DatabaseName     string `mapstructure:"database_name"`
@@ -35,6 +37,7 @@ func init() {
 	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")

main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"github.com/librespeed/speedtest/config"
 	"github.com/librespeed/speedtest/database"
+	"github.com/librespeed/speedtest/results"
 	"github.com/librespeed/speedtest/web"
 
 	log "github.com/sirupsen/logrus"
@@ -11,6 +12,7 @@ import (
 func main() {
 	conf := config.Load()
 
+	results.Initialize(&conf)
 	database.SetDBInfo(&conf)
 	log.Fatal(web.ListenAndServe(&conf))
 }

results/telemetry.go

@@ -10,6 +10,7 @@ import (
 	"math/rand"
 	"net"
 	"net/http"
+	"path/filepath"
 	"regexp"
 	"strings"
 	"time"
@@ -75,10 +76,10 @@ type IPInfoResponse struct {
 	Readme       string `json:"readme"`
 }
 
-func init() {
+func Initialize(c *config.Config) {
 	// changed to use Noto Sans instead of OpenSans, due to issue:
 	// https://github.com/golang/freetype/issues/8
-	if b, err := ioutil.ReadFile("assets/NotoSansDisplay-Light.ttf"); err != nil {
+	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)
@@ -88,7 +89,7 @@ func init() {
 		fontLight = f
 	}
 
-	if b, err := ioutil.ReadFile("assets/NotoSansDisplay-Medium.ttf"); err != nil {
+	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)

settings.toml

@@ -8,6 +8,9 @@ server_lng=0
 # ipinfo.io API key, if applicable
 ipinfo_api_key=""
 
+# assets directory path, defaults to `assets` in the same directory
+assets_path="./assets"
+
 # password for logging into statistics page
 statistics_password="PASSWORD"
 # redact IP addresses

web/web.go

@@ -81,9 +81,11 @@ func pages(w http.ResponseWriter, r *http.Request) {
 		r.RequestURI = "/index.html"
 	}
 
+	conf := config.LoadedConfig()
+
 	uri := strings.Split(r.RequestURI, "?")[0]
 	if strings.HasSuffix(uri, ".html") || strings.HasSuffix(uri, ".js") {
-		http.FileServer(http.Dir("assets")).ServeHTTP(w, r)
+		http.FileServer(http.Dir(conf.AssetsPath)).ServeHTTP(w, r)
 	} else {
 		w.WriteHeader(http.StatusForbidden)
 	}