File: postMessage_chrome_helper.html

package info (click to toggle)
firefox 143.0.3-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 4,617,328 kB
  • sloc: cpp: 7,478,492; javascript: 6,417,157; ansic: 3,720,058; python: 1,396,372; xml: 627,523; asm: 438,677; java: 186,156; sh: 63,477; makefile: 19,171; objc: 13,059; perl: 12,983; yacc: 4,583; cs: 3,846; pascal: 3,405; lex: 1,720; ruby: 1,003; exp: 762; php: 436; lisp: 258; awk: 247; sql: 66; sed: 53; csh: 10
file content (49 lines) | stat: -rw-r--r-- 1,261 bytes parent folder | download | duplicates (31) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
 
<!DOCTYPE html>
<html>
<head>
  <title>postMessage chrome message receiver</title>
  <script type="application/javascript">
    var gPrePath = "";

    function receiveMessage(evt)
    {
      if (evt.data.substring(0,9) == "chrome://") {
        gPrePath = evt.data;
        respond("path-is-set");
      } else {
        // Content cannot post to chrome without privileges
        try {
          window.parent.postMessage("SHOULD NOT GET THIS!", "*");
        }
        catch (ex) {
        }

        var msg = "post-to-content-response";

        if (evt.source !== null)
          msg += " wrong-source(" + evt.source + ")";
        if (!evt.isTrusted)
          msg += " unexpected-untrusted-event";
        if (evt.type !== "message")
          msg += " wrong-type(" + evt.type + ")";
        if (evt.origin !== gPrePath)
          msg += " wrong-origin(" + evt.origin + ")";
        if (evt.data !== "post-to-content")
          msg += " wrong-message(" + evt.data + ")";

        respond(msg);
      }
    }
    
    function respond(msg)
    {
      SpecialPowers.wrap(window).parent.postMessage(msg, "*");
    }
    
    window.addEventListener("message", receiveMessage);
  </script>
</head>
<body>
<h1 id="domain">example.org</h1>
</body>
</html>