/
iframe.go
43 lines (39 loc) · 1.04 KB
/
iframe.go
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package sockjs
import (
"crypto/md5"
"fmt"
"net/http"
"text/template"
)
var tmpl, _ = template.New("asdas").Parse(iframe_body)
func (ctx *context) iframeHandler(rw http.ResponseWriter, req *http.Request) {
etag_req := req.Header.Get("If-None-Match")
hash := md5.New()
hash.Write([]byte(iframe_body))
etag := fmt.Sprintf("%x", hash.Sum(nil))
if etag == etag_req {
rw.WriteHeader(http.StatusNotModified)
return
}
setContentType(rw.Header(), "text/html; charset=UTF-8")
disableCache(rw.Header())
setExpires(rw.Header())
rw.Header().Add("ETag", etag)
tmpl.Execute(rw, ctx.SockjsUrl)
}
var iframe_body = `<!DOCTYPE html>
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script>
document.domain = document.domain;
_sockjs_onload = function(){SockJS.bootstrap_iframe();};
</script>
<script src="{{.}}"></script>
</head>
<body>
<h2>Don't panic!</h2>
<p>This is a SockJS hidden iframe. It's used for cross domain magic.</p>
</body>
</html>`