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16
README.md
16
README.md
@@ -1,24 +1,24 @@
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# WRP - Web Rendering Proxy
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A HTTP proxy server that allows to use historical and obsolete web browsers on the modern web. It works by rendering the web page in to a GIF image associated with clickable imagemap of original web links.
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A HTTP proxy server that allows to use historical and obsolete web browsers on the modern web. It works by rendering the web page in to a GIF image. It sends mouse clicks via ISMAP and keystrokes from a text box form input.
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## Current Status
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* This is the new GoLang/[ChdomeDP](https://github.com/chromedp/chromedp) version.
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* It's still lacking some features of the [older version](/old) but far surpasses it in terms of stability and usability.
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* It's beta quality but unlike the old version, it's now fully supported an maintained.
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* This is a new reimplementation in GoLang/[ChromeDP](https://github.com/chromedp/chromedp).
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* Beta but fully supported an maintained.
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* Currently works as browser-in-browser. A real http proxy mode is being investigated. Check [issue #35](https://github.com/tenox7/wrp/issues/35) for updates.
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* As of 4.1 supports clicking on non-link elements (eg. cookie warnings) and sending keystrokes. Yes, you can login and use Gmail or play web based games from any old browser.
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## Usage
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1. [Download a WRP binary](https://github.com/tenox7/wrp/releases) and run it on a machine that will become your WRP server.
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1. [Download a WRP binary](https://github.com/tenox7/wrp/releases/) and run it on a machine that will become your WRP server.
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2. Point your legacy browser to `http://address:port` of WRP server. Do not set or use it as a "Proxy Server" (yet).
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3. Type a search string or a http/https URL and click Go.
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4. Adjust your screen width/height/scale/#colors to fit in your old browser.
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5. For very very very old browsers such as Mosaic 2.x and IBM WebExplorer 1.x tick the I checkbox to enable ISMAP mode. However this normally should not be needed.
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6. Scroll web page by clicking Up/Down. To go to top enter 0 and click Go.
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5. Scroll web page by clicking on the in-image scroll bar.
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6. Send keystrokes by filling in T input box and pressing Go.
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## Flags
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```
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42
wrp.go
42
wrp.go
@@ -30,7 +30,7 @@ import (
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)
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var (
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version = "4.0"
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version = "4.1"
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srv http.Server
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ctx context.Context
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cancel context.CancelFunc
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@@ -46,6 +46,8 @@ type wrpReq struct {
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C int64 // #colors
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X int64 // mouseX
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Y int64 // mouseY
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K string // keys to send
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B bool // history back
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}
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func (w *wrpReq) parseForm(req *http.Request) {
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@@ -70,6 +72,15 @@ func (w *wrpReq) parseForm(req *http.Request) {
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if w.C < 2 || w.C > 256 {
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w.C = 256
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}
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w.K = req.FormValue("k")
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if w.K == "\\b" {
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w.K = "\b"
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} else if w.K == "\\r" {
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w.K = "\r"
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}
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if req.FormValue("hist") == "Back" {
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w.B = true
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}
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log.Printf("WrpReq from Form: %+v\n", w)
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}
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@@ -77,12 +88,14 @@ func (w wrpReq) printPage(out http.ResponseWriter) {
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out.Header().Set("Content-Type", "text/html")
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fmt.Fprintf(out, "<!-- Web Rendering Proxy Version %s -->\n", version)
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fmt.Fprintf(out, "<HTML>\n<HEAD><TITLE>WRP %s</TITLE></HEAD>\n<BODY BGCOLOR=\"#F0F0F0\">\n", w.U)
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fmt.Fprintf(out, "<FORM ACTION=\"/\"><INPUT TYPE=\"TEXT\" NAME=\"url\" VALUE=\"%s\" SIZE=\"40\">", w.U)
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fmt.Fprintf(out, "<FORM ACTION=\"/\"><INPUT TYPE=\"SUBMIT\" NAME=\"hist\" VALUE=\"Back\">\n")
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fmt.Fprintf(out, "<INPUT TYPE=\"TEXT\" NAME=\"url\" VALUE=\"%s\" SIZE=\"40\">", w.U)
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fmt.Fprintf(out, "<INPUT TYPE=\"SUBMIT\" VALUE=\"Go\"> \n")
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fmt.Fprintf(out, "W <INPUT TYPE=\"TEXT\" NAME=\"w\" VALUE=\"%d\" SIZE=\"4\"> \n", w.W)
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fmt.Fprintf(out, "H <INPUT TYPE=\"TEXT\" NAME=\"h\" VALUE=\"%d\" SIZE=\"4\"> \n", w.H)
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fmt.Fprintf(out, "S <INPUT TYPE=\"TEXT\" NAME=\"s\" VALUE=\"%1.2f\" SIZE=\"3\"> \n", w.S)
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fmt.Fprintf(out, "C <INPUT TYPE=\"TEXT\" NAME=\"c\" VALUE=\"%d\" SIZE=\"3\"> \n", w.C)
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fmt.Fprintf(out, "K <INPUT TYPE=\"TEXT\" NAME=\"k\" VALUE=\"\" SIZE=\"8\"> \n")
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fmt.Fprintf(out, "</FORM><BR>\n")
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}
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@@ -146,23 +159,29 @@ func imgServer(out http.ResponseWriter, req *http.Request) {
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func (w wrpReq) capture(c string, out http.ResponseWriter) {
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var pngbuf []byte
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var gifbuf bytes.Buffer
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var loc string
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var err error
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// Navigate to page or process click request
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if w.X > 0 && w.Y > 0 {
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log.Printf("%s Mouse Click %d,%d\n", c, w.X, w.Y)
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chromedp.Run(ctx,
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chromedp.MouseClickXY(int64(float64(w.X)/w.S), int64(float64(w.Y)/w.S)),
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chromedp.Sleep(time.Second*3),
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chromedp.Location(&loc))
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)
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} else if w.B {
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log.Printf("%s History Back\n", c)
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chromedp.Run(ctx,
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chromedp.NavigateBack(),
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)
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} else if len(w.K) > 0 {
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log.Printf("%s Sending Keys: %#v\n", c, w.K)
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err = chromedp.Run(ctx,
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chromedp.KeyEvent(w.K),
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)
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} else {
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log.Printf("%s Processing Capture Request for %s\n", c, w.U)
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err = chromedp.Run(ctx,
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emulation.SetDeviceMetricsOverride(int64(float64(w.W)/w.S), int64(float64(w.H)/w.S), w.S, false),
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chromedp.Navigate(w.U),
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chromedp.Sleep(time.Second*3),
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chromedp.Location(&loc))
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)
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}
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if err != nil {
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@@ -177,8 +196,11 @@ func (w wrpReq) capture(c string, out http.ResponseWriter) {
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return
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}
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log.Printf("%s Landed on: %s\n", c, loc)
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w.U = loc
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chromedp.Run(
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ctx, chromedp.Sleep(time.Second*3),
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chromedp.Location(&w.U),
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)
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log.Printf("%s Landed on: %s\n", c, w.U)
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w.printPage(out)
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// Process Screenshot Image
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