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, "\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, "", 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()