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wrp
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added more clicky cruft

This commit is contained in:
Antoni Sawicki 2019-06-26 01:07:13 -07:00
parent dedf7479b8
commit f599a51c8d
1 changed files with 57 additions and 29 deletions
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86
wrp.go
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@ -21,14 +21,10 @@ import (
"strconv"
"strings"
"time"
"encoding/json"
"encoding/base64"
"net"
"github.com/chromedp/cdproto/emulation"
"github.com/chromedp/cdproto/runtime"
"github.com/chromedp/cdproto/cdp"
"github.com/chromedp/chromedp"
"github.com/ericpauley/go-quantize/quantize"
@ -40,6 +36,7 @@ var (
ctx context.Context
cancel context.CancelFunc
gifmap = make(map[string]bytes.Buffer)
ismap = make(map[string]Params)
)
// Params - Page Configuration Parameters
@ -50,18 +47,11 @@ type Params struct {
H int64 // height
S float64 // scale
C int64 // #colors
r string // remote addr
l string // local addr
}
func (p *Params) parseParams(req *http.Request) {
func (p *Params) parseForm(req *http.Request) {
req.ParseForm()
p.r = string(req.RemoteAddr)
p.l = req.Context().Value(http.LocalAddrContextKey).(*net.TCPAddr).IP.String()
p.U = req.FormValue("url")
var x,y int64
fmt.Sscanf(req.URL.RawQuery, "%d,%d", &x, &y)
log.Printf("%s Page Request for %s url=\"%s\" [%+v]\n", req.RemoteAddr, req.URL.Path, p.U, req.URL.RawQuery)
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))
}
@ -74,8 +64,8 @@ func (p *Params) parseParams(req *http.Request) {
p.P = 0
}
p.W, _ = strconv.ParseInt(req.FormValue("w"), 10, 64)
if p.P < 10 {
p.P = 1024
if p.W < 10 {
p.W = 1024
}
p.H, _ = strconv.ParseInt(req.FormValue("h"), 10, 64)
if p.H < 10 {
@ -89,13 +79,10 @@ func (p *Params) parseParams(req *http.Request) {
if p.C < 2 || p.C > 256 {
p.C = 256
}
m, _ := json.Marshal(*p)
log.Printf("DEBUG: Struct: %+v Json: %s Base64: %s\n", p, string(m), base64.StdEncoding.EncodeToString([]byte(m)))
log.Printf("Params from Form: %+v\n", p)
}
func pageServer(out http.ResponseWriter, req *http.Request) {
var p Params
p.parseParams(req)
func (p Params) 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)
@ -109,7 +96,46 @@ func pageServer(out http.ResponseWriter, req *http.Request) {
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, "</FORM><BR>\n")
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)
}
func (p Params) 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)
}
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 Params
p.parseForm(req)
p.printPage(out)
if len(p.U) > 4 {
p.capture(req.RemoteAddr, out)
}
p.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)
var x, y int64
n, err := fmt.Sscanf(req.URL.RawQuery, "%d,%d", &x, &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
}
p, 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)
log.Printf("%s Params from ISMAP: %+v\n", req.RemoteAddr, p)
p.printPage(out)
if len(p.U) > 4 {
p.capture(req.RemoteAddr, out)
}
p.printFooter(out)
}
func imgServer(out http.ResponseWriter, req *http.Request) {
@ -128,7 +154,6 @@ func imgServer(out http.ResponseWriter, req *http.Request) {
}
func (p Params) capture(c string, out http.ResponseWriter) {
var nodes []*cdp.Node
var pngbuf []byte
var gifbuf bytes.Buffer
var loc string
@ -156,7 +181,8 @@ func (p Params) capture(c string, out http.ResponseWriter) {
return
}
log.Printf("%s Landed on: %s, Nodes: %d\n", c, loc, len(nodes))
log.Printf("%s Landed on: %s\n", c, loc)
p.U = loc
// Process Screenshot Image
err = chromedp.Run(ctx, chromedp.CaptureScreenshot(&pngbuf))
@ -179,14 +205,15 @@ func (p Params) capture(c string, out http.ResponseWriter) {
fmt.Fprintf(out, "<BR>Unable to encode GIF:<BR>%s<BR>\n", err)
return
}
imgpath := fmt.Sprintf("/img/%04d.gif", rand.Intn(9999))
log.Printf("%s Encoded GIF image: %s, Size: %dKB, Colors: %d\n", c, imgpath, len(gifbuf.Bytes())/1024, p.C)
// Compose map and gif
seq := rand.Intn(9999)
imgpath := fmt.Sprintf("/img/%04d.gif", seq)
mappath := fmt.Sprintf("/map/%04d.map", seq)
gifmap[imgpath] = gifbuf
// Gif location
fmt.Fprintf(out, "<A HREF=\"/w=100/h=100/s=1.0/pg=3/url=%s\"><IMG SRC=\"%s\" ALT=\"wrp\" BORDER=\"0\" ISMAP></A>", loc, imgpath)
out.(http.Flusher).Flush()
ismap[mappath] = p
log.Printf("%s Encoded GIF image: %s, Size: %dKB, Colors: %d\n", c, imgpath, len(gifbuf.Bytes())/1024, p.C)
fmt.Fprintf(out, "<A HREF=\"%s\"><IMG SRC=\"%s\" ALT=\"wrp\" BORDER=\"0\" ISMAP></A>", mappath, imgpath)
log.Printf("%s Done with caputure for %s\n", c, p.U)
}
@ -222,6 +249,7 @@ func main() {
defer cancel()
rand.Seed(time.Now().UnixNano())
http.HandleFunc("/", pageServer)
http.HandleFunc("/map/", mapServer)
http.HandleFunc("/img/", imgServer)
http.HandleFunc("/shutdown/", haltServer)
http.HandleFunc("/favicon.ico", http.NotFound)