311
311
if (("path" in obj) && obj.path != null)
313
313
var path = urlencode_path(obj.path.toString());
314
if (url.length > 0 && path.length > 0 && path.charAt(0) != "/")
314
if (url.length > 0 && path.length > 0 && path[0] != "/")
315
315
path = "/" + path;
491
491
function pathlist_to_path(pathlist)
493
493
ret = path_join.apply(null, pathlist);
494
if (ret.charAt(ret.length-1) != '/')
494
if (ret[ret.length-1] != '/')
538
538
return str.substr(str.length - substring.length) == substring;
541
/** Equivalent to Python's repr.
542
* Gets the JavaScript string representation.
543
* Actually just calls JSON.stringify.
547
return JSON.stringify(str);
541
550
/** Removes all occurences of a value from an array.
543
552
Array.prototype.removeall = function(val)
597
/** Creates a random string of length length,
598
* consisting of alphanumeric characters.
600
var rand_chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ"
601
+ "abcdefghiklmnopqrstuvwxyz";
602
function random_string(length)
604
var str = Array(length);
606
for (var i=0; i<length; i++)
608
v = Math.floor(Math.random() * rand_chars.length);
609
str[i] = rand_chars.charAt(v);
614
/** Makes an XMLHttpRequest call to the server.
606
/** Makes an asynchronous XMLHttpRequest call to the server.
615
607
* Sends the XMLHttpRequest object containing the completed response to a
616
608
* specified callback function.
618
610
* \param callback A callback function. Will be called when the response is
619
611
* complete. Passed 1 parameter, an XMLHttpRequest object containing the
620
* completed response. If callback is null this is a syncronous request
621
* otherwise this is an asynchronous request.
612
* completed response.
622
613
* \param app IVLE app to call (such as "fileservice").
623
614
* \param path URL path to make the request to, within the application.
624
615
* \param args Argument object, as described in parse_url and friends.
636
627
/* A random string, for multipart/form-data
637
628
* (This is not checked against anywhere else, it is solely defined and
638
629
* used within this function) */
639
var boundary = random_string(20);
630
var boundary = "48234n334nu7n4n2ynonjn234t683jyh80j";
640
631
var xhr = new_xmlhttprequest();
641
var asyncronous = callback != null;
644
xhr.onreadystatechange = function()
632
xhr.onreadystatechange = function()
634
if (xhr.readyState == 4)
646
if (xhr.readyState == 4)
652
639
if (method == "GET")
654
641
/* GET sends the args in the URL */
655
642
url = build_url({"path": path, "args": args});
656
643
/* open's 3rd argument = true -> asynchronous */
657
xhr.open(method, url, asyncronous);
644
xhr.open(method, url, true);
662
649
/* POST sends the args in application/x-www-form-urlencoded */
663
650
url = encodeURI(path);
664
xhr.open(method, url, asyncronous);
651
xhr.open(method, url, true);
666
653
if (content_type == "multipart/form-data")
668
655
xhr.setRequestHeader("Content-Type",
669
"multipart/form-data; boundary=" + boundary);
656
"multipart/form-data, boundary=" + boundary);
670
657
message = make_multipart_formdata(args, boundary);
674
661
xhr.setRequestHeader("Content-Type", content_type);
675
662
message = make_query_string(args);
664
xhr.setRequestHeader("Content-Length", message.length);
677
665
xhr.send(message);
679
/* Only return the XHR for syncronous requests */
686
/** Attempts to JSON decodes a response object
687
* If a non-200 response or the JSON decode fails then returns null
689
function decode_response(response)
691
if (response.status == 200)
695
var responseText = response.responseText;
696
return JSON.parse(responseText);