Macintosh-Tools
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wrp
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This commit is contained in:
Antoni Sawicki 2020-04-24 03:06:21 -07:00
parent c9cedb7f81
commit f73c778b7c
1 changed files with 26 additions and 14 deletions
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40
wrp.go
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@ -52,6 +52,7 @@ type geom struct {
c int64
}
// WRP Request
type wrpReq struct {
U string // url
W int64 // width
@ -67,6 +68,7 @@ type wrpReq struct {
r *http.Request
}
// Parse HTML Form, Process Input Boxes, Etc.
func (w *wrpReq) parseForm() {
w.r.ParseForm()
w.U = w.r.FormValue("url")
@ -96,6 +98,8 @@ func (w *wrpReq) parseForm() {
log.Printf("%s WrpReq from Form: %+v\n", w.r.RemoteAddr, w)
}
// Display WP UI
// TODO: make this in to an external template
func (w wrpReq) printPage(bgcolor string) {
var s string
w.o.Header().Set("Cache-Control", "max-age=0")
@ -141,12 +145,14 @@ func (w wrpReq) printPage(bgcolor string) {
fmt.Fprintf(w.o, "</FORM><BR>\n")
}
// Status bar below captured image
func (w wrpReq) printFooter(h string, s string) {
fmt.Fprintf(w.o, "\n<P><FONT SIZE=\"-2\"><A HREF=\"/?url=https://github.com/tenox7/wrp/&w=%d&h=%d&s=%1.2f&c=%d&t=%s\">"+
"Web Rendering Proxy Version %s</A> | <A HREF=\"/shutdown/\">Shutdown WRP</A> | "+
"<A HREF=\"/\">Page Height: %s</A> | <A HREF=\"/\">Img Size: %s</A></FONT></BODY>\n</HTML>\n", w.W, w.H, w.S, w.C, w.T, version, h, s)
}
// Process HTTP requests to WRP '/' url
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 w wrpReq
@ -162,6 +168,7 @@ func pageServer(out http.ResponseWriter, req *http.Request) {
}
}
// Process HTTP requests to ISMAP '/map/' url
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)
w, ok := ismap[req.URL.Path]
@ -191,6 +198,7 @@ func mapServer(out http.ResponseWriter, req *http.Request) {
}
}
// Process HTTP requests for images '/img/' url
func imgServer(out http.ResponseWriter, req *http.Request) {
log.Printf("%s IMG Request for %s\n", req.RemoteAddr, req.URL.Path)
imgbuf, ok := img[req.URL.Path]
@ -215,6 +223,22 @@ func imgServer(out http.ResponseWriter, req *http.Request) {
out.(http.Flusher).Flush()
}
// Process HTTP requests for Shutdown via '/shutdown/' url
func haltServer(out http.ResponseWriter, req *http.Request) {
log.Printf("%s Shutdown Request for %s\n", req.RemoteAddr, req.URL.Path)
out.Header().Set("Cache-Control", "max-age=0")
out.Header().Set("Expires", "-1")
out.Header().Set("Pragma", "no-cache")
out.Header().Set("Content-Type", "text/plain")
fmt.Fprintf(out, "Shutting down WRP...\n")
out.(http.Flusher).Flush()
time.Sleep(time.Second * 2)
cancel()
srv.Shutdown(context.Background())
os.Exit(1)
}
// Process Keyboard and Mouse events before Capture
func (w wrpReq) kbdmouse() {
var err error
if w.X > 0 && w.Y > 0 {
@ -258,6 +282,7 @@ func (w wrpReq) kbdmouse() {
}
}
// Capture currently rendered web page to an image and fake ISMAP
func (w wrpReq) capture() {
var err error
var styles []*css.ComputedStyleProperty
@ -334,20 +359,7 @@ func (w wrpReq) capture() {
log.Printf("%s Done with caputure for %s\n", w.r.RemoteAddr, w.U)
}
func haltServer(out http.ResponseWriter, req *http.Request) {
log.Printf("%s Shutdown Request for %s\n", req.RemoteAddr, req.URL.Path)
out.Header().Set("Cache-Control", "max-age=0")
out.Header().Set("Expires", "-1")
out.Header().Set("Pragma", "no-cache")
out.Header().Set("Content-Type", "text/plain")
fmt.Fprintf(out, "Shutting down WRP...\n")
out.(http.Flusher).Flush()
time.Sleep(time.Second * 2)
cancel()
srv.Shutdown(context.Background())
os.Exit(1)
}
// Main...
func main() {
var addr, fgeom string
var head, headless bool