speedtest-go/results/telemetry.go

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package results
import (
"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/golang/freetype"
"github.com/golang/freetype/truetype"
"github.com/oklog/ulid/v2"
log "github.com/sirupsen/logrus"
"golang.org/x/image/font"
)
const (
watermark = "LibreSpeed"
labelMS = " ms"
labelMbps = "Mbit/s"
labelPing = "Ping"
labelJitter = "Jitter"
labelDownload = "Download"
labelUpload = "Upload"
)
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]?)`)
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
pingJitterLabelFace, upDownLabelFace, pingJitterValueFace, upDownValueFace, smallLabelFace, ispFace, watermarkFace font.Face
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})
colorPing = image.NewUniform(color.RGBA{170, 96, 96, 255})
colorJitter = image.NewUniform(color.RGBA{170, 96, 96, 255})
colorMeasure = image.NewUniform(color.RGBA{40, 40, 40, 255})
colorISP = image.NewUniform(color.RGBA{40, 40, 40, 255})
colorWatermark = image.NewUniform(color.RGBA{160, 160, 160, 255})
colorSeparator = image.NewUniform(color.RGBA{192, 192, 192, 255})
)
type Result struct {
ProcessedString string `json:"processedString"`
RawISPInfo IPInfoResponse `json:"rawIspInfo"`
}
type IPInfoResponse struct {
IP string `json:"ip"`
Hostname string `json:"hostname"`
City string `json:"city"`
Region string `json:"region"`
Country string `json:"country"`
Location string `json:"loc"`
Organization string `json:"org"`
Postal string `json:"postal"`
Timezone string `json:"timezone"`
Readme string `json:"readme"`
}
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(filepath.Join(c.AssetsPath, "NotoSansDisplay-Light.ttf")); err != nil {
log.Fatalf("Error opening NotoSansDisplay-Light font: %s", err)
} else {
f, err := freetype.ParseFont(b)
if err != nil {
log.Fatalf("Error parsing NotoSansDisplay-Light font: %s", err)
}
fontLight = f
}
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)
if err != nil {
log.Fatalf("Error parsing NotoSansDisplay-Medium font: %s", err)
}
fontBold = f
}
pingJitterLabelFace = truetype.NewFace(fontBold, &truetype.Options{
Size: 12,
DPI: dpi,
Hinting: font.HintingFull,
})
upDownLabelFace = truetype.NewFace(fontBold, &truetype.Options{
Size: 14,
DPI: dpi,
Hinting: font.HintingFull,
})
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: 6,
DPI: dpi,
Hinting: font.HintingFull,
})
}
func Record(w http.ResponseWriter, r *http.Request) {
ipAddr, _, _ := net.SplitHostPort(r.RemoteAddr)
userAgent := r.UserAgent()
language := r.Header.Get("Accept-Language")
ispInfo := r.FormValue("ispinfo")
download := r.FormValue("dl")
upload := r.FormValue("ul")
ping := r.FormValue("ping")
jitter := r.FormValue("jitter")
logs := r.FormValue("log")
extra := r.FormValue("extra")
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"`)
}
var record schema.TelemetryData
record.IPAddress = ipAddr
if ispInfo == "" {
record.ISPInfo = "{}"
} else {
record.ISPInfo = ispInfo
}
record.Extra = extra
record.UserAgent = userAgent
record.Language = language
record.Download = download
record.Upload = upload
record.Ping = ping
record.Jitter = jitter
record.Log = logs
t := time.Now()
entropy := ulid.Monotonic(rand.New(rand.NewSource(t.UnixNano())), 0)
uuid := ulid.MustNew(ulid.Timestamp(t), entropy)
record.UUID = uuid.String()
err := database.DB.Insert(&record)
if err != nil {
log.Errorf("Error inserting into database: %s", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
if _, err := w.Write([]byte("id " + uuid.String())); 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")
record, err := database.DB.FetchByUUID(uuid)
if err != nil {
log.Errorf("Error querying database: %s", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
var result Result
if err := json.Unmarshal([]byte(record.ISPInfo), &result); err != nil {
log.Errorf("Error parsing ISP info: %s", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
canvas := image.NewRGBA(image.Rectangle{
Min: image.Point{},
Max: image.Point{
X: canvasWidth,
Y: canvasHeight,
},
})
draw.Draw(canvas, canvas.Bounds(), image.NewUniform(color.White), image.Point{}, draw.Src)
drawer := &font.Drawer{
Dst: canvas,
Face: pingJitterLabelFace,
}
drawer.Src = colorLabel
// labels
p := drawer.MeasureString(labelPing)
x := canvasWidth/4 - p.Round()/2
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+topOffset)
drawer.DrawString(labelJitter)
drawer.Face = upDownLabelFace
p = drawer.MeasureString(labelDownload)
x = canvasWidth/4 - p.Round()/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-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-middleOffset)
drawer.DrawString(labelMbps)
p = drawer.MeasureString(labelMbps)
x = canvasWidth*3/4 - p.Round()/2
drawer.Dot = freetype.Pt(x, canvasHeight*8/10-middleOffset)
drawer.DrawString(labelMbps)
msLength := drawer.MeasureString(labelMS)
// ping value
drawer.Face = pingJitterValueFace
pingValue := strings.Split(record.Ping, ".")[0]
p = drawer.MeasureString(pingValue)
x = canvasWidth/4 - (p.Round()+msLength.Round())/2
drawer.Dot = freetype.Pt(x, canvasHeight*11/40)
drawer.Src = colorPing
drawer.DrawString(pingValue)
x = x + p.Round()
drawer.Dot = freetype.Pt(x, canvasHeight*11/40)
drawer.Src = colorMeasure
drawer.Face = smallLabelFace
drawer.DrawString(labelMS)
// jitter value
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(record.Jitter)
drawer.Face = smallLabelFace
x = x + p.Round()
drawer.Dot = freetype.Pt(x, canvasHeight*11/40)
drawer.Src = colorMeasure
drawer.DrawString(labelMS)
// download value
drawer.Face = upDownValueFace
p = drawer.MeasureString(record.Download)
x = canvasWidth/4 - p.Round()/2
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-middleOffset)
drawer.Src = colorUpload
drawer.DrawString(record.Upload)
// watermark
ctx := freetype.NewContext()
ctx.SetFont(fontLight)
ctx.SetFontSize(14)
ctx.SetDPI(dpi)
ctx.SetHinting(font.HintingFull)
drawer.Face = watermarkFace
drawer.Src = colorWatermark
p = drawer.MeasureString(watermark)
x = canvasWidth - p.Round() - 5
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(6).Round()-bottomOffset, colorSeparator)
}
// ISP info
drawer.Face = ispFace
drawer.Src = colorISP
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)
2020-12-20 23:07:27 -05:00
if strings.Contains(str[1], "(") {
str = strings.SplitN(str[1], "(", 2)
}
ispString = str[0]
}
drawer.DrawString("ISP: " + ispString)
w.Header().Set("Content-Disposition", "inline; filename="+uuid+".png")
w.Header().Set("Content-Type", "image/png")
if err := png.Encode(w, canvas); err != nil {
log.Errorf("Failed to output image to HTTP client: %s", err)
}
}