mirror of
https://github.com/tenox7/wrp.git
synced 2024-11-22 10:31:21 +00:00
clicky data encoding
This commit is contained in:
Antoni Sawicki
parent
1f5592cbde
commit
dedf7479b8
152
wrp.go
152
wrp.go
@ -21,6 +21,9 @@ import (
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
"encoding/json"
|
||||
"encoding/base64"
|
||||
"net"
|
||||
|
||||
"github.com/chromedp/cdproto/emulation"
|
||||
"github.com/chromedp/cdproto/runtime"
|
||||
@ -31,76 +34,82 @@ import (
|
||||
"github.com/ericpauley/go-quantize/quantize"
|
||||
)
|
||||
|
||||
// Ismap for server side processing
|
||||
type Ismap struct {
|
||||
xmin int64
|
||||
ymin int64
|
||||
xmax int64
|
||||
ymax int64
|
||||
url string
|
||||
}
|
||||
|
||||
var (
|
||||
version = "3.0"
|
||||
srv http.Server
|
||||
ctx context.Context
|
||||
cancel context.CancelFunc
|
||||
gifmap = make(map[string]bytes.Buffer)
|
||||
ismap = make(map[string][]Ismap)
|
||||
)
|
||||
|
||||
func pageServer(out http.ResponseWriter, req *http.Request) {
|
||||
req.ParseForm()
|
||||
u := req.FormValue("url")
|
||||
// Params - Page Configuration Parameters
|
||||
type Params struct {
|
||||
U string // url
|
||||
P int64 // page
|
||||
W int64 // width
|
||||
H int64 // height
|
||||
S float64 // scale
|
||||
C int64 // #colors
|
||||
r string // remote addr
|
||||
l string // local addr
|
||||
}
|
||||
|
||||
p, _ := strconv.ParseInt(req.FormValue("p"), 10, 64)
|
||||
func (p *Params) parseParams(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))
|
||||
}
|
||||
p.P, _ = strconv.ParseInt(req.FormValue("p"), 10, 64)
|
||||
if req.FormValue("pg") == "Dn" {
|
||||
p++
|
||||
p.P++
|
||||
} else if req.FormValue("pg") == "Up" {
|
||||
p--
|
||||
p.P--
|
||||
} else {
|
||||
p = 0
|
||||
p.P = 0
|
||||
}
|
||||
w, _ := strconv.ParseInt(req.FormValue("w"), 10, 64)
|
||||
if w < 10 {
|
||||
w = 1024
|
||||
p.W, _ = strconv.ParseInt(req.FormValue("w"), 10, 64)
|
||||
if p.P < 10 {
|
||||
p.P = 1024
|
||||
}
|
||||
h, _ := strconv.ParseInt(req.FormValue("h"), 10, 64)
|
||||
if h < 10 {
|
||||
h = 768
|
||||
p.H, _ = strconv.ParseInt(req.FormValue("h"), 10, 64)
|
||||
if p.H < 10 {
|
||||
p.H = 768
|
||||
}
|
||||
s, _ := strconv.ParseFloat(req.FormValue("s"), 64)
|
||||
if s < 0.1 {
|
||||
s = 1.0
|
||||
p.S, _ = strconv.ParseFloat(req.FormValue("s"), 64)
|
||||
if p.S < 0.1 {
|
||||
p.S = 1.0
|
||||
}
|
||||
c, _ := strconv.ParseInt(req.FormValue("c"), 10, 64)
|
||||
if c < 2 || c > 256 {
|
||||
c = 256
|
||||
p.C, _ = strconv.ParseInt(req.FormValue("c"), 10, 64)
|
||||
if p.C < 2 || p.C > 256 {
|
||||
p.C = 256
|
||||
}
|
||||
log.Printf("%s Page Request for url=\"%s\" [%s] [%+v]\n", req.RemoteAddr, u, req.URL.Path, req.URL.RawQuery)
|
||||
m, _ := json.Marshal(*p)
|
||||
log.Printf("DEBUG: Struct: %+v Json: %s Base64: %s\n", p, string(m), base64.StdEncoding.EncodeToString([]byte(m)))
|
||||
}
|
||||
|
||||
func pageServer(out http.ResponseWriter, req *http.Request) {
|
||||
var p Params
|
||||
p.parseParams(req)
|
||||
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", u)
|
||||
fmt.Fprintf(out, "<FORM ACTION=\"/\"><INPUT TYPE=\"TEXT\" NAME=\"url\" VALUE=\"%s\" SIZE=\"20\">", u)
|
||||
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, "<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)
|
||||
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", w)
|
||||
fmt.Fprintf(out, "H <INPUT TYPE=\"TEXT\" NAME=\"h\" VALUE=\"%d\" SIZE=\"4\"> \n", h)
|
||||
fmt.Fprintf(out, "S <INPUT TYPE=\"TEXT\" NAME=\"s\" VALUE=\"%1.2f\" SIZE=\"3\"> \n", s)
|
||||
fmt.Fprintf(out, "C <INPUT TYPE=\"TEXT\" NAME=\"c\" VALUE=\"%d\" SIZE=\"3\"> \n", c)
|
||||
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, "</FORM><BR>\n")
|
||||
if len(u) > 1 {
|
||||
if strings.HasPrefix(u, "http") {
|
||||
capture(u, w, h, s, int(c), p, req.RemoteAddr, out)
|
||||
} else {
|
||||
capture(fmt.Sprintf("http://www.google.com/search?q=%s", url.QueryEscape(u)), w, h, s, int(c), p, req.RemoteAddr, out)
|
||||
}
|
||||
} else {
|
||||
fmt.Fprintf(out, "No URL or search query specified")
|
||||
}
|
||||
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", w, h, s, c, version)
|
||||
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 imgServer(out http.ResponseWriter, req *http.Request) {
|
||||
@ -118,49 +127,20 @@ func imgServer(out http.ResponseWriter, req *http.Request) {
|
||||
out.(http.Flusher).Flush()
|
||||
}
|
||||
|
||||
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 loc string
|
||||
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
|
||||
}
|
||||
is, ok := ismap[req.URL.Path]
|
||||
if !ok || is == nil {
|
||||
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)
|
||||
for _, i := range is {
|
||||
if x >= i.xmin && x <= i.xmax && y >= i.ymin && y <= i.ymax {
|
||||
loc = i.url
|
||||
}
|
||||
}
|
||||
if len(loc) < 1 {
|
||||
loc = is[0].url
|
||||
}
|
||||
log.Printf("%s ISMAP Redirect to: http://%s%s\n", req.RemoteAddr, req.Context().Value(http.LocalAddrContextKey), loc)
|
||||
http.Redirect(out, req, fmt.Sprintf("http://%s%s", req.Context().Value(http.LocalAddrContextKey), loc), 301)
|
||||
}
|
||||
|
||||
func capture(gourl string, w int64, h int64, s float64, co int, p int64, c string, out http.ResponseWriter) {
|
||||
func (p Params) capture(c string, out http.ResponseWriter) {
|
||||
var nodes []*cdp.Node
|
||||
var pngbuf []byte
|
||||
var gifbuf bytes.Buffer
|
||||
var loc string
|
||||
var res *runtime.RemoteObject
|
||||
|
||||
log.Printf("%s Processing Capture Request for %s\n", c, gourl)
|
||||
log.Printf("%s Processing Capture Request for %s\n", c, p.U)
|
||||
|
||||
// Run ChromeDP Magic
|
||||
err := chromedp.Run(ctx,
|
||||
emulation.SetDeviceMetricsOverride(int64(float64(w)/s), int64(float64(h)/s), s, false),
|
||||
chromedp.Navigate(gourl),
|
||||
chromedp.Evaluate(fmt.Sprintf("window.scrollTo(0, %d);", p*int64(float64(h)*float64(0.9))), &res),
|
||||
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)*float64(0.9))), &res),
|
||||
chromedp.Sleep(time.Second*1),
|
||||
chromedp.Location(&loc))
|
||||
|
||||
@ -193,22 +173,21 @@ func capture(gourl string, w int64, h int64, s float64, co int, p int64, c strin
|
||||
return
|
||||
}
|
||||
gifbuf.Reset()
|
||||
err = gif.Encode(&gifbuf, img, &gif.Options{NumColors: co, Quantizer: quantize.MedianCutQuantizer{}})
|
||||
err = gif.Encode(&gifbuf, img, &gif.Options{NumColors: int(p.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)
|
||||
return
|
||||
}
|
||||
seq := rand.Intn(9999)
|
||||
imgpath := fmt.Sprintf("/img/%04d.gif", seq)
|
||||
log.Printf("%s Encoded GIF image: %s, Size: %dKB, Colors: %d\n", c, imgpath, len(gifbuf.Bytes())/1024, co)
|
||||
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)
|
||||
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()
|
||||
log.Printf("%s Done with caputure for %s\n", c, gourl)
|
||||
log.Printf("%s Done with caputure for %s\n", c, p.U)
|
||||
}
|
||||
|
||||
func haltServer(out http.ResponseWriter, req *http.Request) {
|
||||
@ -244,7 +223,6 @@ func main() {
|
||||
rand.Seed(time.Now().UnixNano())
|
||||
http.HandleFunc("/", pageServer)
|
||||
http.HandleFunc("/img/", imgServer)
|
||||
http.HandleFunc("/map/", mapServer)
|
||||
http.HandleFunc("/shutdown/", haltServer)
|
||||
http.HandleFunc("/favicon.ico", http.NotFound)
|
||||
log.Printf("Web Rendering Proxy Version %s\n", version)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user