// Quickly create a class namespace
Create_Class = function (name, parent) {
var segments = name.split(".");
var steps = new Array();
if(!parent) {
parent = "Object";
}
for(i=1;i <= segments.length;i++) {
var x = segments.slice(0, i).join(".");
steps.push("try { if(" + x + " == null) throw new Error(); } catch(e) { " + x + " = function () { return this; }; };");
}
var rv;
steps.push(name + ".CLASS = '" + name + "';");
steps.push(name + ".prototype = new " + parent + ";");
steps.push(name + ".prototype.CLASS = " + name + ".CLASS;");
steps.push("return " + name + ";");
var code = new Function(steps.join("\n"));
return code.call(this);
}
Create_Class('JSONRPC');
JSONRPC.prototype.Call_Server = function (callback, method) {
if(!this.ID) {
throw new Error("Call_Server called without an ID!");
}
if(!this.CLASS) {
throw new Error("Call_Server called without a class!");
}
var url = this.URL || JSONRPC.URL;
var params = [ this.CLASS ];
var i;
for(i=2;i<arguments.length;i++) {
params.push(arguments[i]);
}
var request = JSON.stringify({
method: method,
id: this.ID,
params: params
});
var me = this;
var real_callback = function (json) {
// http://rt.cpan.org/Ticket/Display.html?id=18108
var args = eval('(' + json.replace(/\!perl\/ref\:/g, '') + ')');
if(args.error) {
throw new Error("Got an error back: " + args.error);
}
callback.apply(me, args.result);
}
return Ajax.post(url, request, real_callback);
};
//------------------------------------------------------------------------------
// Ajax support from Jemplate-0.18 (http://search.cpan.org/src/INGY/Jemplate-0.18/)
//------------------------------------------------------------------------------
if (! this.Ajax) Ajax = {};
Ajax.get = function(url, callback) {
var req = new XMLHttpRequest();
req.open('GET', url, Boolean(callback));
return Ajax._send(req, null, callback);
}
Ajax.post = function(url, data, callback) {
var req = new XMLHttpRequest();
req.open('POST', url, Boolean(callback));
req.setRequestHeader(
'Content-Type',
'text/json'
);
return Ajax._send(req, data, callback);
}
Ajax._send = function(req, data, callback) {
if (callback) {
req.onreadystatechange = function() {
if (req.readyState == 4) {
if(req.status == 200)
callback(req.responseText);
}
};
}
req.send(data);
if (!callback) {
if (req.status != 200)
throw('Request for "' + url +
'" failed with status: ' + req.status);
return req.responseText;
}
}
//------------------------------------------------------------------------------
// Cross-Browser XMLHttpRequest v1.1
//------------------------------------------------------------------------------
/*
Emulate Gecko 'XMLHttpRequest()' functionality in IE and Opera. Opera requires
the Sun Java Runtime Environment <http://www.java.com/>.
by Andrew Gregory
http://www.scss.com.au/family/andrew/webdesign/xmlhttprequest/
This work is licensed under the Creative Commons Attribution License. To view a
copy of this license, visit http://creativecommons.org/licenses/by/1.0/ or send
a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305,
USA.
*/
// IE support
if (window.ActiveXObject && !window.XMLHttpRequest) {
window.XMLHttpRequest = function() {
return new ActiveXObject((navigator.userAgent.toLowerCase().indexOf('msie 5') != -1) ? 'Microsoft.XMLHTTP' : 'Msxml2.XMLHTTP');
};
}
// Opera support
if (window.opera && !window.XMLHttpRequest) {
window.XMLHttpRequest = function() {
this.readyState = 0; // 0=uninitialized,1=loading,2=loaded,3=interactive,4=complete
this.status = 0; // HTTP status codes
this.statusText = '';
this._headers = [];
this._aborted = false;
this._async = true;
this.abort = function() {
this._aborted = true;
};
this.getAllResponseHeaders = function() {
return this.getAllResponseHeader('*');
};
this.getAllResponseHeader = function(header) {
var ret = '';
for (var i = 0; i < this._headers.length; i++) {
if (header == '*' || this._headers[i].h == header) {
ret += this._headers[i].h + ': ' + this._headers[i].v + '\n';
}
}
return ret;
};
this.setRequestHeader = function(header, value) {
this._headers[this._headers.length] = {h:header, v:value};
};
this.open = function(method, url, async, user, password) {
this.method = method;
this.url = url;
this._async = true;
this._aborted = false;
if (arguments.length >= 3) {
this._async = async;
}
if (arguments.length > 3) {
// user/password support requires a custom Authenticator class
opera.postError('XMLHttpRequest.open() - user/password not supported');
}
this._headers = [];
this.readyState = 1;
if (this.onreadystatechange) {
this.onreadystatechange();
}
};
this.send = function(data) {
if (!navigator.javaEnabled()) {
alert("XMLHttpRequest.send() - Java must be installed and enabled.");
return;
}
if (this._async) {
setTimeout(this._sendasync, 0, this, data);
// this is not really asynchronous and won't execute until the current
// execution context ends
} else {
this._sendsync(data);
}
}
this._sendasync = function(req, data) {
if (!req._aborted) {
req._sendsync(data);
}
};
this._sendsync = function(data) {
this.readyState = 2;
if (this.onreadystatechange) {
this.onreadystatechange();
}
// open connection
var url = new java.net.URL(new java.net.URL(window.location.href), this.url);
var conn = url.openConnection();
for (var i = 0; i < this._headers.length; i++) {
conn.setRequestProperty(this._headers[i].h, this._headers[i].v);
}
this._headers = [];
if (this.method == 'POST') {
// POST data
conn.setDoOutput(true);
var wr = new java.io.OutputStreamWriter(conn.getOutputStream());
wr.write(data);
wr.flush();
wr.close();
}
// read response headers
// NOTE: the getHeaderField() methods always return nulls for me :(
var gotContentEncoding = false;
var gotContentLength = false;
var gotContentType = false;
var gotDate = false;
var gotExpiration = false;
var gotLastModified = false;
for (var i = 0; ; i++) {
var hdrName = conn.getHeaderFieldKey(i);
var hdrValue = conn.getHeaderField(i);
if (hdrName == null && hdrValue == null) {
break;
}
if (hdrName != null) {
this._headers[this._headers.length] = {h:hdrName, v:hdrValue};
switch (hdrName.toLowerCase()) {
case 'content-encoding': gotContentEncoding = true; break;
case 'content-length' : gotContentLength = true; break;
case 'content-type' : gotContentType = true; break;
case 'date' : gotDate = true; break;
case 'expires' : gotExpiration = true; break;
case 'last-modified' : gotLastModified = true; break;
}
}
}
// try to fill in any missing header information
var val;
val = conn.getContentEncoding();
if (val != null && !gotContentEncoding) this._headers[this._headers.length] = {h:'Content-encoding', v:val};
val = conn.getContentLength();
if (val != -1 && !gotContentLength) this._headers[this._headers.length] = {h:'Content-length', v:val};
val = conn.getContentType();
if (val != null && !gotContentType) this._headers[this._headers.length] = {h:'Content-type', v:val};
val = conn.getDate();
if (val != 0 && !gotDate) this._headers[this._headers.length] = {h:'Date', v:(new Date(val)).toUTCString()};
val = conn.getExpiration();
if (val != 0 && !gotExpiration) this._headers[this._headers.length] = {h:'Expires', v:(new Date(val)).toUTCString()};
val = conn.getLastModified();
if (val != 0 && !gotLastModified) this._headers[this._headers.length] = {h:'Last-modified', v:(new Date(val)).toUTCString()};
// read response data
var reqdata = '';
var stream = conn.getInputStream();
if (stream) {
var reader = new java.io.BufferedReader(new java.io.InputStreamReader(stream));
var line;
while ((line = reader.readLine()) != null) {
if (this.readyState == 2) {
this.readyState = 3;
if (this.onreadystatechange) {
this.onreadystatechange();
}
}
reqdata += line + '\n';
}
reader.close();
this.status = 200;
this.statusText = 'OK';
this.responseText = reqdata;
this.readyState = 4;
if (this.onreadystatechange) {
this.onreadystatechange();
}
if (this.onload) {
this.onload();
}
} else {
// error
this.status = 404;
this.statusText = 'Not Found';
this.responseText = '';
this.readyState = 4;
if (this.onreadystatechange) {
this.onreadystatechange();
}
if (this.onerror) {
this.onerror();
}
}
};
};
}
// ActiveXObject emulation
if (!window.ActiveXObject && window.XMLHttpRequest) {
window.ActiveXObject = function(type) {
switch (type.toLowerCase()) {
case 'microsoft.xmlhttp':
case 'msxml2.xmlhttp':
return new XMLHttpRequest();
}
return null;
};
}
//------------------------------------------------------------------------------
// JSON Support
//------------------------------------------------------------------------------
/*
Copyright (c) 2005 JSON.org
*/
var JSON = function () {
var m = {
'\b': '\\b',
'\t': '\\t',
'\n': '\\n',
'\f': '\\f',
'\r': '\\r',
'"' : '\\"',
'\\': '\\\\'
},
s = {
'boolean': function (x) {
return String(x);
},
number: function (x) {
return isFinite(x) ? String(x) : 'null';
},
string: function (x) {
if (/["\\\x00-\x1f]/.test(x)) {
x = x.replace(/([\x00-\x1f\\"])/g, function(a, b) {
var c = m[b];
if (c) {
return c;
}
c = b.charCodeAt();
return '\\u00' +
Math.floor(c / 16).toString(16) +
(c % 16).toString(16);
});
}
return '"' + x + '"';
},
object: function (x) {
if (x) {
var a = [], b, f, i, l, v;
if (x instanceof Array) {
a[0] = '[';
l = x.length;
for (i = 0; i < l; i += 1) {
v = x[i];
f = s[typeof v];
if (f) {
v = f(v);
if (typeof v == 'string') {
if (b) {
a[a.length] = ',';
}
a[a.length] = v;
b = true;
}
}
}
a[a.length] = ']';
} else if (x instanceof Object) {
a[0] = '{';
for (i in x) {
v = x[i];
f = s[typeof v];
if (f) {
v = f(v);
if (typeof v == 'string') {
if (b) {
a[a.length] = ',';
}
a.push(s.string(i), ':', v);
b = true;
}
}
}
a[a.length] = '}';
} else {
return;
}
return a.join('');
}
return 'null';
}
};
return {
copyright: '(c)2005 JSON.org',
license: 'http://www.crockford.com/JSON/license.html',
stringify: function (v) {
var f = s[typeof v];
if (f) {
v = f(v);
if (typeof v == 'string') {
return v;
}
}
return null;
},
parse: function (text) {
alert(text);
eval('(' + text + ')');
try {
return !(/[^,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/.test(
text.replace(/"(\\.|[^"\\])*"/g, ''))) &&
eval('(' + text + ')');
} catch (e) {
return false;
}
}
};
}();