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more clicky stuff

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This commit is contained in:
Antoni Sawicki 2019-07-10 23:58:40 -07:00
parent e5e5e321e8
commit 7baaa0bd6e
1 changed files with 57 additions and 77 deletions
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134
wrp.go
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@ -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, "<!-- Web Rendering Proxy Version %s -->\n", version)
fmt.Fprintf(out, "<HTML>\n<HEAD><TITLE>WRP %s</TITLE></HEAD>\n<BODY BGCOLOR=\"#F0F0F0\">\n", p.U)
fmt.Fprintf(out, "<FORM ACTION=\"/\"><INPUT TYPE=\"TEXT\" NAME=\"url\" VALUE=\"%s\" SIZE=\"20\">", p.U)
fmt.Fprintf(out, "<HTML>\n<HEAD><TITLE>WRP %s</TITLE></HEAD>\n<BODY BGCOLOR=\"#F0F0F0\">\n", w.U)
fmt.Fprintf(out, "<FORM ACTION=\"/\"><INPUT TYPE=\"TEXT\" NAME=\"url\" VALUE=\"%s\" SIZE=\"40\">", w.U)
fmt.Fprintf(out, "<INPUT TYPE=\"SUBMIT\" VALUE=\"Go\"> \n")
fmt.Fprintf(out, "<INPUT TYPE=\"SUBMIT\" NAME=\"pg\" VALUE=\"Up\"> \n")
fmt.Fprintf(out, "<INPUT TYPE=\"TEXT\" NAME=\"p\" VALUE=\"%d\" SIZE=\"2\"> \n", p.P)
fmt.Fprintf(out, "<INPUT TYPE=\"SUBMIT\" NAME=\"pg\" VALUE=\"Dn\"> \n")
fmt.Fprintf(out, "W <INPUT TYPE=\"TEXT\" NAME=\"w\" VALUE=\"%d\" SIZE=\"4\"> \n", p.W)
fmt.Fprintf(out, "H <INPUT TYPE=\"TEXT\" NAME=\"h\" VALUE=\"%d\" SIZE=\"4\"> \n", p.H)
fmt.Fprintf(out, "S <INPUT TYPE=\"TEXT\" NAME=\"s\" VALUE=\"%1.2f\" SIZE=\"3\"> \n", p.S)
fmt.Fprintf(out, "C <INPUT TYPE=\"TEXT\" NAME=\"c\" VALUE=\"%d\" SIZE=\"3\"> \n", p.C)
fmt.Fprintf(out, "W <INPUT TYPE=\"TEXT\" NAME=\"w\" VALUE=\"%d\" SIZE=\"4\"> \n", w.W)
fmt.Fprintf(out, "H <INPUT TYPE=\"TEXT\" NAME=\"h\" VALUE=\"%d\" SIZE=\"4\"> \n", w.H)
fmt.Fprintf(out, "S <INPUT TYPE=\"TEXT\" NAME=\"s\" VALUE=\"%1.2f\" SIZE=\"3\"> \n", w.S)
fmt.Fprintf(out, "C <INPUT TYPE=\"TEXT\" NAME=\"c\" VALUE=\"%d\" SIZE=\"3\"> \n", w.C)
fmt.Fprintf(out, "</FORM><BR>\n")
}
func (p WrpReq) printFooter(out http.ResponseWriter) {
func (w wrpReq) printFooter(out http.ResponseWriter) {
fmt.Fprintf(out, "\n<P><A HREF=\"/?url=https://github.com/tenox7/wrp/&w=%d&h=%d&s=%1.2f&c=%d\">"+
"Web Rendering Proxy Version %s</A> | <A HREF=\"/shutdown/\">Shutdown WRP</A></BODY>\n</HTML>\n", p.W, p.H, p.S, p.C, version)
"Web Rendering Proxy Version %s</A> | <A HREF=\"/shutdown/\">Shutdown WRP</A></BODY>\n</HTML>\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, "<BR>Unable to encode GIF:<BR>%s<BR>\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, "<A HREF=\"%s\"><IMG SRC=\"%s\" ALT=\"wrp\" BORDER=\"0\" ISMAP></A>", 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()