diff --git a/wrp.go b/wrp.go index f269a68..abdb76c 100644 --- a/wrp.go +++ b/wrp.go @@ -23,7 +23,6 @@ import ( "time" "github.com/chromedp/cdproto/emulation" - "github.com/chromedp/cdproto/runtime" "github.com/chromedp/chromedp" @@ -36,13 +35,11 @@ var ( ctx context.Context cancel context.CancelFunc gifmap = make(map[string]bytes.Buffer) - ismap = make(map[string]WrpReq) + ismap = make(map[string]wrpReq) ) -// WrpReq - WRP Page Request -type WrpReq struct { +type wrpReq struct { U string // url - P int64 // page W int64 // width H int64 // height S float64 // scale @@ -51,97 +48,84 @@ type WrpReq struct { Y int64 // mouseY } -func (p *WrpReq) parseForm(req *http.Request) { +func (w *wrpReq) parseForm(req *http.Request) { req.ParseForm() - p.U = req.FormValue("url") - if len(p.U) > 1 && !strings.HasPrefix(p.U, "http") { - p.U = fmt.Sprintf("http://www.google.com/search?q=%s", url.QueryEscape(p.U)) + w.U = req.FormValue("url") + if len(w.U) > 1 && !strings.HasPrefix(w.U, "http") { + w.U = fmt.Sprintf("http://www.google.com/search?q=%s", url.QueryEscape(w.U)) } - p.P, _ = strconv.ParseInt(req.FormValue("p"), 10, 64) - if req.FormValue("pg") == "Dn" { - p.P++ - } else if req.FormValue("pg") == "Up" { - p.P-- - } else { - p.P = 0 + w.W, _ = strconv.ParseInt(req.FormValue("w"), 10, 64) + if w.W < 10 { + w.W = 1152 } - p.W, _ = strconv.ParseInt(req.FormValue("w"), 10, 64) - if p.W < 10 { - p.W = 1024 + w.H, _ = strconv.ParseInt(req.FormValue("h"), 10, 64) + if w.H < 10 { + w.H = 600 } - p.H, _ = strconv.ParseInt(req.FormValue("h"), 10, 64) - if p.H < 10 { - p.H = 600 + w.S, _ = strconv.ParseFloat(req.FormValue("s"), 64) + if w.S < 0.1 { + w.S = 1.0 } - p.S, _ = strconv.ParseFloat(req.FormValue("s"), 64) - if p.S < 0.1 { - p.S = 1.0 + w.C, _ = strconv.ParseInt(req.FormValue("c"), 10, 64) + if w.C < 2 || w.C > 256 { + w.C = 256 } - p.C, _ = strconv.ParseInt(req.FormValue("c"), 10, 64) - if p.C < 2 || p.C > 256 { - p.C = 256 - } - log.Printf("WrpReq from Form: %+v\n", p) + log.Printf("WrpReq from Form: %+v\n", w) } -func (p WrpReq) printPage(out http.ResponseWriter) { +func (w wrpReq) printPage(out http.ResponseWriter) { out.Header().Set("Content-Type", "text/html") fmt.Fprintf(out, "\n", version) - fmt.Fprintf(out, "\nWRP %s\n\n", p.U) - fmt.Fprintf(out, "
", p.U) + fmt.Fprintf(out, "\nWRP %s\n\n", w.U) + fmt.Fprintf(out, "", w.U) fmt.Fprintf(out, " \n") - fmt.Fprintf(out, " \n") - fmt.Fprintf(out, " \n", p.P) - fmt.Fprintf(out, " \n") - fmt.Fprintf(out, "W \n", p.W) - fmt.Fprintf(out, "H \n", p.H) - fmt.Fprintf(out, "S \n", p.S) - fmt.Fprintf(out, "C \n", p.C) + fmt.Fprintf(out, "W \n", w.W) + fmt.Fprintf(out, "H \n", w.H) + fmt.Fprintf(out, "S \n", w.S) + fmt.Fprintf(out, "C \n", w.C) fmt.Fprintf(out, "

\n") } -func (p WrpReq) printFooter(out http.ResponseWriter) { +func (w wrpReq) printFooter(out http.ResponseWriter) { fmt.Fprintf(out, "\n

"+ - "Web Rendering Proxy Version %s | Shutdown WRP\n\n", p.W, p.H, p.S, p.C, version) + "Web Rendering Proxy Version %s | Shutdown WRP\n\n", w.W, w.H, w.S, w.C, version) } func pageServer(out http.ResponseWriter, req *http.Request) { log.Printf("%s Page Request for %s [%+v]\n", req.RemoteAddr, req.URL.Path, req.URL.RawQuery) - var p WrpReq - p.parseForm(req) + var w wrpReq + w.parseForm(req) - if len(p.U) > 4 { - p.capture(req.RemoteAddr, out) + if len(w.U) > 4 { + w.capture(req.RemoteAddr, out) } else { - p.printPage(out) - p.printFooter(out) + w.printPage(out) + w.printFooter(out) } - } func mapServer(out http.ResponseWriter, req *http.Request) { log.Printf("%s ISMAP Request for %s [%+v]\n", req.RemoteAddr, req.URL.Path, req.URL.RawQuery) - p, ok := ismap[req.URL.Path] + w, ok := ismap[req.URL.Path] if !ok { fmt.Fprintf(out, "Unable to find map %s\n", req.URL.Path) log.Printf("Unable to find map %s\n", req.URL.Path) return } defer delete(ismap, req.URL.Path) - n, err := fmt.Sscanf(req.URL.RawQuery, "%d,%d", &p.X, &p.Y) + n, err := fmt.Sscanf(req.URL.RawQuery, "%d,%d", &w.X, &w.Y) if err != nil || n != 2 { fmt.Fprintf(out, "n=%d, err=%s\n", n, err) log.Printf("%s ISMAP n=%d, err=%s\n", req.RemoteAddr, n, err) return } - log.Printf("%s WrpReq from ISMAP: %+v\n", req.RemoteAddr, p) - if len(p.U) > 4 { - p.capture(req.RemoteAddr, out) + log.Printf("%s WrpReq from ISMAP: %+v\n", req.RemoteAddr, w) + if len(w.U) > 4 { + w.capture(req.RemoteAddr, out) } else { - p.printPage(out) - p.printFooter(out) + w.printPage(out) + w.printFooter(out) } - } func imgServer(out http.ResponseWriter, req *http.Request) { @@ -159,27 +143,25 @@ func imgServer(out http.ResponseWriter, req *http.Request) { out.(http.Flusher).Flush() } -func (p WrpReq) capture(c string, out http.ResponseWriter) { +func (w wrpReq) capture(c string, out http.ResponseWriter) { var pngbuf []byte var gifbuf bytes.Buffer var loc string - var res *runtime.RemoteObject var err error // Navigate to page or process click request - if p.X > 0 && p.Y > 0 { - log.Printf("%s Mouse Click %d,%d\n", c, p.X, p.Y) + if w.X > 0 && w.Y > 0 { + log.Printf("%s Mouse Click %d,%d\n", c, w.X, w.Y) chromedp.Run(ctx, - chromedp.MouseClickXY(int64(float64(p.X)/p.S), int64(float64(p.Y)/p.S)), + chromedp.MouseClickXY(int64(float64(w.X)/w.S), int64(float64(w.Y)/w.S)), chromedp.Sleep(time.Second*3), chromedp.Location(&loc)) } else { - log.Printf("%s Processing Capture Request for %s\n", c, p.U) + log.Printf("%s Processing Capture Request for %s\n", c, w.U) err = chromedp.Run(ctx, - emulation.SetDeviceMetricsOverride(int64(float64(p.W)/p.S), int64(float64(p.H)/p.S), p.S, false), - chromedp.Navigate(p.U), - chromedp.Evaluate(fmt.Sprintf("window.scrollTo(0, %d);", p.P*int64(float64(p.H)*p.S*float64(0.9))), &res), - chromedp.Sleep(time.Second*1), + emulation.SetDeviceMetricsOverride(int64(float64(w.W)/w.S), int64(float64(w.H)/w.S), w.S, false), + chromedp.Navigate(w.U), + chromedp.Sleep(time.Second*3), chromedp.Location(&loc)) } @@ -196,11 +178,8 @@ func (p WrpReq) capture(c string, out http.ResponseWriter) { } log.Printf("%s Landed on: %s\n", c, loc) - if p.U != loc { - p.U = loc - p.P = 0 - } - p.printPage(out) + w.U = loc + w.printPage(out) // Process Screenshot Image err = chromedp.Run(ctx, chromedp.CaptureScreenshot(&pngbuf)) @@ -217,7 +196,7 @@ func (p WrpReq) capture(c string, out http.ResponseWriter) { return } gifbuf.Reset() - err = gif.Encode(&gifbuf, img, &gif.Options{NumColors: int(p.C), Quantizer: quantize.MedianCutQuantizer{}}) + err = gif.Encode(&gifbuf, img, &gif.Options{NumColors: int(w.C), Quantizer: quantize.MedianCutQuantizer{}}) if err != nil { log.Printf("%s Failed to encode GIF: %s\n", c, err) fmt.Fprintf(out, "
Unable to encode GIF:
%s
\n", err) @@ -229,11 +208,11 @@ func (p WrpReq) capture(c string, out http.ResponseWriter) { imgpath := fmt.Sprintf("/img/%04d.gif", seq) mappath := fmt.Sprintf("/map/%04d.map", seq) gifmap[imgpath] = gifbuf - ismap[mappath] = p - log.Printf("%s Encoded GIF image: %s, Size: %dKB, Colors: %d\n", c, imgpath, len(gifbuf.Bytes())/1024, p.C) + ismap[mappath] = w + log.Printf("%s Encoded GIF image: %s, Size: %dKB, Colors: %d\n", c, imgpath, len(gifbuf.Bytes())/1024, w.C) fmt.Fprintf(out, "\"wrp\"", mappath, imgpath) - p.printFooter(out) - log.Printf("%s Done with caputure for %s\n", c, p.U) + w.printFooter(out) + log.Printf("%s Done with caputure for %s\n", c, w.U) } func haltServer(out http.ResponseWriter, req *http.Request) { @@ -257,6 +236,7 @@ func main() { } opts := append(chromedp.DefaultExecAllocatorOptions[:], chromedp.Flag("headless", headless), + chromedp.Flag("hide-scrollbars", false), ) actx, cancel := chromedp.NewExecAllocator(context.Background(), opts...) defer cancel()