7 |
parent.Meteor.register(this); |
parent.Meteor.register(this); |
8 |
var streamreq; |
var streamreq; |
9 |
var byteoffset; |
var byteoffset; |
10 |
|
var newdata; |
11 |
|
|
12 |
function abort() { |
function abort() { |
13 |
streamreq.abort(); |
streamreq.abort(); |
14 |
} |
} |
15 |
|
|
16 |
function newXmlHttp() { |
function newXmlHttp() { |
17 |
try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) {} |
var xhr = null; |
18 |
try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {} |
try { xhr = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { |
19 |
try { return new XMLHttpRequest(); } catch(e) {} |
try { xhr = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { |
20 |
return null; |
try { xhr = new XMLHttpRequest(); } catch(e) { return false } |
21 |
|
} |
22 |
|
} |
23 |
|
return xhr; |
24 |
} |
} |
25 |
|
|
26 |
function startstream() { |
function startstream() { |
27 |
streamreq = newXmlHttp(); |
streamreq = newXmlHttp(); |
28 |
byteoffset = 0; |
byteoffset = 0; |
29 |
|
newdata = ""; |
30 |
var url = parent.Meteor.getSubsUrl(); |
var url = parent.Meteor.getSubsUrl(); |
31 |
streamreq.open("GET", url, true); |
streamreq.open("GET", url, true); |
32 |
streamreq.onreadystatechange = function() { |
streamreq.onreadystatechange = function() { |
33 |
if (typeof streamreq == "undefined") return; |
if (typeof streamreq == "undefined") return; |
34 |
if (streamreq.readyState == 3) { |
if (streamreq.readyState == 3) { |
35 |
var buffer = streamreq.responseText; |
extractEvents(streamreq.responseText); |
|
var newdata = buffer.substring(byteoffset); |
|
|
byteoffset = buffer.length; |
|
|
while (1) { |
|
|
var x = newdata.indexOf("<s"+"cript>p("); |
|
|
if (x != -1) { |
|
|
y = newdata.indexOf("</"+"script>", x); |
|
|
if (y != -1) { |
|
|
eval(newdata.substring((x+8),y)); |
|
|
newdata = newdata.substring(y+9); |
|
|
} else { |
|
|
|
|
|
// Last message is incomplete. Ignore it and it will be fetched again |
|
|
break; |
|
|
} |
|
|
} else { |
|
|
|
|
|
// No more messages |
|
|
break; |
|
|
} |
|
|
} |
|
|
byteoffset = buffer.length-newdata.length; |
|
36 |
} else if (streamreq.readyState == 4) { |
} else if (streamreq.readyState == 4) { |
37 |
|
extractEvents(streamreq.responseText); |
38 |
delete streamreq; |
delete streamreq; |
39 |
if (typeof(r)=="function") { |
if (typeof(r)=="function") { |
40 |
r(); |
r(); |
42 |
} |
} |
43 |
} |
} |
44 |
streamreq.send(null); |
streamreq.send(null); |
45 |
|
parent.Meteor.lastrequest = parent.Meteor.time(); |
46 |
} |
} |
47 |
|
|
48 |
|
function extractEvents(responsestr) { |
49 |
|
newdata += responsestr.substring(byteoffset); |
50 |
|
byteoffset = responsestr.length; |
51 |
|
while (1) { |
52 |
|
var x = newdata.indexOf("<s"+"cript>"); |
53 |
|
if (x != -1) { |
54 |
|
y = newdata.indexOf("</"+"script>", x); |
55 |
|
if (y != -1) { |
56 |
|
eval(newdata.substring((x+8),y)); |
57 |
|
if (typeof newdata == 'undefined') break; // If message was eof() then we're now in a freed script |
58 |
|
newdata = newdata.substring(y+9); |
59 |
|
} else { |
60 |
|
|
61 |
|
// Last message is incomplete. Ignore it and it will be processed next time |
62 |
|
break; |
63 |
|
} |
64 |
|
} else { |
65 |
|
|
66 |
|
// No more messages |
67 |
|
break; |
68 |
|
} |
69 |
|
} |
70 |
|
} |
71 |
|
|
72 |
|
|
73 |
startstream(); |
startstream(); |