package results import ( "encoding/json" "image" "image/color" "image/draw" "image/png" "io/ioutil" "math/rand" "net" "net/http" "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 labelFace, valueFace, smallLabelFace, orgFace, watermarkFace font.Face canvasWidth, canvasHeight = 800, 600 dpi = 150.0 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 init() { // 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 { 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("assets/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 } labelFace = truetype.NewFace(fontBold, &truetype.Options{ Size: 26, DPI: dpi, Hinting: font.HintingFull, }) valueFace = truetype.NewFace(fontLight, &truetype.Options{ Size: 36, DPI: dpi, Hinting: font.HintingFull, }) smallLabelFace = truetype.NewFace(fontBold, &truetype.Options{ Size: 20, DPI: dpi, Hinting: font.HintingFull, }) orgFace = truetype.NewFace(fontBold, &truetype.Options{ Size: 16, DPI: dpi, Hinting: font.HintingFull, }) watermarkFace = truetype.NewFace(fontLight, &truetype.Options{ Size: 14, 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: labelFace, } drawer.Src = colorLabel // labels p := drawer.MeasureString(labelPing) x := canvasWidth/4 - p.Round()/2 drawer.Dot = freetype.Pt(x, canvasHeight/10) drawer.DrawString(labelPing) p = drawer.MeasureString(labelJitter) x = canvasWidth*3/4 - p.Round()/2 drawer.Dot = freetype.Pt(x, canvasHeight/10) drawer.DrawString(labelJitter) p = drawer.MeasureString(labelDownload) x = canvasWidth/4 - p.Round()/2 drawer.Dot = freetype.Pt(x, canvasHeight/2) drawer.DrawString(labelDownload) p = drawer.MeasureString(labelUpload) x = canvasWidth*3/4 - p.Round()/2 drawer.Dot = freetype.Pt(x, canvasHeight/2) 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.DrawString(labelMbps) p = drawer.MeasureString(labelMbps) x = canvasWidth*3/4 - p.Round()/2 drawer.Dot = freetype.Pt(x, canvasHeight*8/10) drawer.DrawString(labelMbps) msLength := drawer.MeasureString(labelMS) // ping value drawer.Face = valueFace 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 = valueFace jitterValue := strings.Split(record.Jitter, ".")[0] p = drawer.MeasureString(jitterValue) x = canvasWidth*3/4 - (p.Round()+msLength.Round())/2 drawer.Dot = freetype.Pt(x, canvasHeight*11/40) drawer.Src = colorJitter drawer.DrawString(jitterValue) 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 = valueFace p = drawer.MeasureString(record.Download) x = canvasWidth/4 - p.Round()/2 drawer.Dot = freetype.Pt(x, canvasHeight*27/40) 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.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-10) drawer.DrawString(watermark) // separator for i := canvas.Bounds().Min.X; i < canvas.Bounds().Max.X; i++ { canvas.Set(i, canvasHeight-ctx.PointToFixed(14).Round()-10, colorSeparator) } // ISP info drawer.Face = orgFace 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.DrawString(org) } else { drawer.DrawString(result.ProcessedString) } 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) } }