Macintosh-Tools/wrp
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encode image as gif

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This commit is contained in:
Antoni Sawicki 2019-05-29 18:02:29 -07:00
parent 5b827bffb0
commit 7d84d01268
1 changed files with 19 additions and 7 deletions
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26
wrp.go
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@ -9,6 +9,10 @@ import (
"strconv"
"strings"
"time"
"bytes"
_ "image"
"image/png"
"image/gif"
"github.com/chromedp/cdproto/emulation"
@ -20,7 +24,7 @@ import (
var (
ctx context.Context
cancel context.CancelFunc
scrcap []byte
gifbuf bytes.Buffer
)
func pageServer(out http.ResponseWriter, req *http.Request) {
@ -30,7 +34,7 @@ func pageServer(out http.ResponseWriter, req *http.Request) {
if len(furl) >= 1 && len(furl[0]) > 4 {
url = furl[0]
} else {
url = "https://www.google.com/"
url = "https://en.wikipedia.org/wiki/"
}
log.Printf("%s Page Reqest for %s URL=%s\n", req.RemoteAddr, req.URL.Path, url)
out.Header().Set("Content-Type", "text/html")
@ -45,15 +49,16 @@ func pageServer(out http.ResponseWriter, req *http.Request) {
func imgServer(out http.ResponseWriter, req *http.Request) {
log.Printf("%s Img Reqest for %s\n", req.RemoteAddr, req.URL.Path)
out.Header().Set("Content-Type", "image/png")
out.Header().Set("Content-Length", strconv.Itoa(len(scrcap)))
out.Write(scrcap)
out.Header().Set("Content-Type", "image/gif")
out.Header().Set("Content-Length", strconv.Itoa(len(gifbuf.Bytes())))
out.Write(gifbuf.Bytes())
}
func capture(url string, out http.ResponseWriter) {
var nodes []*cdp.Node
ctxx := chromedp.FromContext(ctx)
var target string
var scrcap []byte
log.Printf("Caputure Request for %s\n", url)
@ -64,7 +69,14 @@ func capture(url string, out http.ResponseWriter) {
chromedp.CaptureScreenshot(&scrcap),
chromedp.Nodes("a", &nodes, chromedp.ByQueryAll))
fmt.Fprintf(out, "<IMG SRC=\"/wrp.png\" ALT=\"wrp\" USEMAP=\"#map\">\n<MAP NAME=\"map\">\n")
img, err:= png.Decode(bytes.NewReader(scrcap) )
if err != nil {
log.Fatal(err)
}
gifbuf.Reset()
gif.Encode(&gifbuf, img, nil)
fmt.Fprintf(out, "<IMG SRC=\"/wrp.gif\" ALT=\"wrp\" USEMAP=\"#map\">\n<MAP NAME=\"map\">\n")
for _, n := range nodes {
b, err := dom.GetBoxModel().WithNodeID(n.NodeID).Do(cdp.WithExecutor(ctx, ctxx.Target))
@ -92,7 +104,7 @@ func main() {
flag.Parse()
http.HandleFunc("/", pageServer)
http.HandleFunc("/wrp.png", imgServer)
http.HandleFunc("/wrp.gif", imgServer)
log.Printf("Starting http server on %s\n", addr)
http.ListenAndServe(addr, nil)
}