mirror of https://github.com/tenox7/wrp.git
add initial support for ui/html template
This commit is contained in:
Antoni Sawicki
parent
b54ebbf9e5
commit
878f43af75
166
wrp.go
166
wrp.go
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@ -12,6 +12,7 @@ import (
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"context"
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"flag"
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"fmt"
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"html/template"
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"image"
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"image/gif"
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"image/png"
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@ -36,15 +37,16 @@ import (
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)
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var (
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version = "4.5"
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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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img = make(map[string]bytes.Buffer)
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ismap = make(map[string]wrpReq)
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nodel bool
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deftype string
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defgeom geom
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version = "4.5"
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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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img = make(map[string]bytes.Buffer)
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ismap = make(map[string]wrpReq)
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nodel bool
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deftype string
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defgeom geom
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htmlTmpl *template.Template
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)
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type geom struct {
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@ -53,6 +55,35 @@ type geom struct {
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c int64
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}
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// Data for html template
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type uiData struct {
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Version string
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URL string
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Bgcolor string
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NColors int64
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Width int64
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Height int64
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Scale float64
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ImgType string
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ImgUrl string
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ImgSize string
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ImgWidth int
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ImgHeight int
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MapUrl string
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PageHeight string
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}
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// Parameters for HTML print function
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type printParams struct {
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bgcolor string
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pageheight string
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imgsize string
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imgurl string
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mapurl string
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imgwidth int
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imgheight int
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}
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// WRP Request
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type wrpReq struct {
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url string // url
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@ -101,69 +132,31 @@ func (w *wrpReq) parseForm() {
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// Display WP UI
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// TODO: make this in to an external template
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func (w wrpReq) printPage(bgcolor string) {
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var s string
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func (w wrpReq) printHtml(p printParams) {
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w.out.Header().Set("Cache-Control", "max-age=0")
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w.out.Header().Set("Expires", "-1")
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w.out.Header().Set("Pragma", "no-cache")
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w.out.Header().Set("Content-Type", "text/html")
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fmt.Fprintf(w.out, "<!-- Web Rendering Proxy Version %s -->\n", version)
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fmt.Fprintf(w.out, "<HTML>\n<HEAD><TITLE>WRP %s</TITLE></HEAD>\n<BODY BGCOLOR=\"%s\">\n", w.url, bgcolor)
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fmt.Fprintf(w.out, "<FORM ACTION=\"/\" METHOD=\"POST\">\n")
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fmt.Fprintf(w.out, "<INPUT TYPE=\"TEXT\" NAME=\"url\" VALUE=\"%s\" SIZE=\"20\">", w.url)
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fmt.Fprintf(w.out, "<INPUT TYPE=\"SUBMIT\" VALUE=\"Go\">\n")
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fmt.Fprintf(w.out, "<INPUT TYPE=\"SUBMIT\" NAME=\"Fn\" VALUE=\"Bk\">\n")
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fmt.Fprintf(w.out, "W <INPUT TYPE=\"TEXT\" NAME=\"w\" VALUE=\"%d\" SIZE=\"4\"> \n", w.width)
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fmt.Fprintf(w.out, "H <INPUT TYPE=\"TEXT\" NAME=\"h\" VALUE=\"%d\" SIZE=\"4\"> \n", w.height)
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fmt.Fprintf(w.out, "S <SELECT NAME=\"s\">\n")
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for _, v := range []float64{0.65, 0.75, 0.85, 0.95, 1.0, 1.05, 1.15, 1.25} {
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if v == w.scale {
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s = "SELECTED"
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} else {
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s = ""
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}
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fmt.Fprintf(w.out, "<OPTION VALUE=\"%1.2f\" %s>%1.2f</OPTION>\n", v, s, v)
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data := uiData{
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Version: version,
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URL: w.url,
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Bgcolor: p.bgcolor,
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Width: w.width,
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Height: w.height,
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NColors: w.colors,
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Scale: w.scale,
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ImgType: w.imgType,
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ImgSize: p.imgsize,
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ImgWidth: p.imgwidth,
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ImgHeight: p.imgheight,
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ImgUrl: p.imgurl,
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MapUrl: p.mapurl,
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PageHeight: p.pageheight,
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}
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fmt.Fprintf(w.out, "</SELECT>\n")
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fmt.Fprintf(w.out, "T <SELECT NAME=\"t\">\n")
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for _, v := range []string{"gif", "png"} {
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if v == w.imgType {
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s = "SELECTED"
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} else {
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s = ""
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}
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fmt.Fprintf(w.out, "<OPTION VALUE=\"%s\" %s>%s</OPTION>\n", v, s, strings.ToUpper(v))
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err := htmlTmpl.Execute(w.out, data)
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if err != nil {
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log.Fatal(err)
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}
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fmt.Fprintf(w.out, "</SELECT>\n")
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fmt.Fprintf(w.out, "C <INPUT TYPE=\"TEXT\" NAME=\"c\" VALUE=\"%d\" SIZE=\"3\">\n", w.colors)
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fmt.Fprintf(w.out, "K <INPUT TYPE=\"TEXT\" NAME=\"k\" VALUE=\"\" SIZE=\"4\"> \n")
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fmt.Fprintf(w.out, "<INPUT TYPE=\"SUBMIT\" NAME=\"Fn\" VALUE=\"Bs\">\n")
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fmt.Fprintf(w.out, "<INPUT TYPE=\"SUBMIT\" NAME=\"Fn\" VALUE=\"Rt\">\n")
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fmt.Fprintf(w.out, "<INPUT TYPE=\"SUBMIT\" NAME=\"Fn\" VALUE=\"<\">\n")
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fmt.Fprintf(w.out, "<INPUT TYPE=\"SUBMIT\" NAME=\"Fn\" VALUE=\"^\">\n")
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fmt.Fprintf(w.out, "<INPUT TYPE=\"SUBMIT\" NAME=\"Fn\" VALUE=\"v\">\n")
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fmt.Fprintf(w.out, "<INPUT TYPE=\"SUBMIT\" NAME=\"Fn\" VALUE=\">\" SIZE=\"1\">\n")
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fmt.Fprintf(w.out, "</FORM><BR>\n")
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}
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// Status bar below captured image
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func (w wrpReq) printFooter(h string, s string) {
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fmt.Fprintf(w.out,
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"\n<P><FONT SIZE=\"-2\">"+
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"<A HREF=\"/?url=https://github.com/tenox7/wrp/&w=%d&h=%d&s=%1.2f&c=%d&t=%s\">"+
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"Web Rendering Proxy Version %s</A> | "+
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"<A HREF=\"/shutdown/\">Shutdown WRP</A> | "+
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"<A HREF=\"/\">Page Height: %s</A> |"+
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"<A HREF=\"/\">Img Size: %s</A> "+
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"</FONT></BODY>\n</HTML>\n",
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w.width,
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w.height,
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w.scale,
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w.colors,
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w.imgType,
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version,
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h,
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s)
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}
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// Process HTTP requests to WRP '/' url
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@ -174,8 +167,7 @@ func pageServer(out http.ResponseWriter, req *http.Request) {
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w.out = out
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w.parseForm()
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if len(w.url) < 4 {
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w.printPage("#FFFFFF")
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w.printFooter("", "")
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w.printHtml(printParams{bgcolor: "#FFFFFF"})
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return
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}
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w.navigate()
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@ -204,8 +196,7 @@ func mapServer(out http.ResponseWriter, req *http.Request) {
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}
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log.Printf("%s WrpReq from ISMAP: %+v\n", req.RemoteAddr, w)
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if len(w.url) < 4 {
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w.printPage("#FFFFFF")
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w.printFooter("", "")
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w.printHtml(printParams{bgcolor: "#FFFFFF"})
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return
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}
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w.navigate()
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@ -314,6 +305,7 @@ func (w wrpReq) capture() {
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var pngcap []byte
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chromedp.Run(ctx,
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emulation.SetDeviceMetricsOverride(int64(float64(w.width)/w.scale), 10, w.scale, false),
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chromedp.Sleep(time.Second*1),
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chromedp.Location(&w.url),
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chromedp.ComputedStyle("body", &styles, chromedp.ByQuery),
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chromedp.ActionFunc(func(ctx context.Context) error {
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@ -330,7 +322,6 @@ func (w wrpReq) capture() {
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}
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}
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log.Printf("%s Landed on: %s, Height: %v\n", w.req.RemoteAddr, w.url, h)
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w.printPage(fmt.Sprintf("#%02X%02X%02X", r, g, b))
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height := int64(float64(w.height) / w.scale)
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if w.height == 0 && h > 0 {
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height = h + 30
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@ -338,7 +329,7 @@ func (w wrpReq) capture() {
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chromedp.Run(ctx, emulation.SetDeviceMetricsOverride(int64(float64(w.width)/w.scale), height, w.scale, false))
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// Capture screenshot...
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err = chromedp.Run(ctx,
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chromedp.Sleep(time.Second*2),
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chromedp.Sleep(time.Second*1),
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chromedp.CaptureScreenshot(&pngcap),
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)
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if err != nil {
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@ -357,7 +348,7 @@ func (w wrpReq) capture() {
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mappath := fmt.Sprintf("/map/%04d.map", seq)
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ismap[mappath] = w
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var ssize string
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var sw, sh int
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var iw, ih int
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switch w.imgType {
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case "gif":
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i, err := png.Decode(bytes.NewReader(pngcap))
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@ -379,21 +370,28 @@ func (w wrpReq) capture() {
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}
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img[imgpath] = gifbuf
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ssize = fmt.Sprintf("%.0f KB", float32(len(gifbuf.Bytes()))/1024.0)
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sw = i.Bounds().Max.X
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sh = i.Bounds().Max.Y
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log.Printf("%s Encoded GIF image: %s, Size: %s, Colors: %d, %dx%d\n", w.req.RemoteAddr, imgpath, ssize, w.colors, sw, sh)
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iw = i.Bounds().Max.X
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ih = i.Bounds().Max.Y
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log.Printf("%s Encoded GIF image: %s, Size: %s, Colors: %d, %dx%d\n", w.req.RemoteAddr, imgpath, ssize, w.colors, iw, ih)
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case "png":
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pngbuf := bytes.NewBuffer(pngcap)
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img[imgpath] = *pngbuf
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cfg, _, _ := image.DecodeConfig(pngbuf)
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ssize = fmt.Sprintf("%.0f KB", float32(len(pngbuf.Bytes()))/1024.0)
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sw = cfg.Width
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sh = cfg.Height
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log.Printf("%s Got PNG image: %s, Size: %s, %dx%d\n", w.req.RemoteAddr, imgpath, ssize, sw, sh)
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iw = cfg.Width
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ih = cfg.Height
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log.Printf("%s Got PNG image: %s, Size: %s, %dx%d\n", w.req.RemoteAddr, imgpath, ssize, iw, ih)
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}
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fmt.Fprintf(w.out, "<A HREF=\"%s\"><IMG SRC=\"%s\" BORDER=\"0\" ALT=\"Url: %s, Size: %s\" WIDTH=\"%d\" HEIGHT=\"%d\" ISMAP></A>", mappath, imgpath, w.url, ssize, sw, sh)
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w.printFooter(fmt.Sprintf("%d PX", h), ssize)
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log.Printf("%s Done with caputure for %s\n", w.req.RemoteAddr, w.url)
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w.printHtml(printParams{
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bgcolor: fmt.Sprintf("#%02X%02X%02X", r, g, b),
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pageheight: fmt.Sprintf("%d PX", h),
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imgsize: ssize,
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imgurl: imgpath,
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mapurl: mappath,
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imgwidth: iw,
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imgheight: ih,
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})
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log.Printf("%s Done with capture for %s\n", w.req.RemoteAddr, w.url)
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}
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// Main...
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@ -443,6 +441,10 @@ func main() {
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http.HandleFunc("/img/", imgServer)
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http.HandleFunc("/shutdown/", haltServer)
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http.HandleFunc("/favicon.ico", http.NotFound)
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htmlTmpl, err = template.New("wrp.html").ParseFiles("wrp.html")
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("Web Rendering Proxy Version %s\n", version)
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log.Printf("Args: %q", os.Args)
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log.Printf("Default Img Type: %v, Geometry: %+v", deftype, defgeom)
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@ -0,0 +1,38 @@
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<HTML>
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<HEAD>
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<TITLE>WRP {{.URL}}</TITLE>
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</HEAD>
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<BODY BGCOLOR="{{.Bgcolor}}">
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<FORM ACTION="/" METHOD="POST">
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<INPUT TYPE="TEXT" NAME="url" VALUE="{{.URL}}" SIZE="20">
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<INPUT TYPE="SUBMIT" VALUE="Go">
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<INPUT TYPE="SUBMIT" NAME="Fn" VALUE="Bk">
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W <INPUT TYPE="TEXT" NAME="w" VALUE="{{.Width}}" SIZE="4">
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H <INPUT TYPE="TEXT" NAME="h" VALUE="{{.Height}}" SIZE="4">
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S <INPUT TYPE="TEXT" NAME="s" VALUE="{{ printf "%.1f" .Scale}}" SIZE="4">
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T <SELECT NAME="t">
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<OPTION VALUE="gif" {{ if eq .ImgType "gif"}}SELECTED{{end}}>GIF</OPTION>
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<OPTION VALUE="png" {{ if eq .ImgType "png"}}SELECTED{{end}}>PNG</OPTION>
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</SELECT>
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C <INPUT TYPE="TEXT" NAME="c" VALUE="{{.NColors}}" SIZE="3">
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K <INPUT TYPE="TEXT" NAME="k" VALUE="" SIZE="4">
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<INPUT TYPE="SUBMIT" NAME="Fn" VALUE="Bs">
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<INPUT TYPE="SUBMIT" NAME="Fn" VALUE="Rt">
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<INPUT TYPE="SUBMIT" NAME="Fn" VALUE="<">
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<INPUT TYPE="SUBMIT" NAME="Fn" VALUE="^">
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<INPUT TYPE="SUBMIT" NAME="Fn" VALUE="v">
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<INPUT TYPE="SUBMIT" NAME="Fn" VALUE=">" SIZE="1">
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</FORM>
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<BR>
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{{if .ImgUrl}}
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<A HREF="{{.MapUrl}}"><IMG SRC="{{.ImgUrl}}" BORDER="0" ALT="Url: {{.URL}}, Size: {{.ImgSize}} PageHeight: {{.PageHeight}}" WIDTH="{{.ImgWidth}}" HEIGHT="{{.ImgHeight}}" ISMAP></A>
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<P>
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{{end}}
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<FONT SIZE="-2">
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<A HREF="/?url=https://github.com/tenox7/wrp/&w={{.Width}}&h={{.Height}}&s={{printf "%.1f" .Scale}}&c={{.NColors}}&t={{.ImgType}}">Web Rendering Proxy {{.Version}}</A> |
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<A HREF="/shutdown/">Shutdown WRP</A> |
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<A HREF="/">Page Height: {{.PageHeight}}</A> |
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<A HREF="/">Img Size: {{.ImgSize}}</A>
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</FONT>
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</BODY>
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</HTML>
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