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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is JSIRC Library
*
* The Initial Developer of the Original Code is New Dimensions Consulting,
* Inc. Portions created by New Dimensions Consulting, Inc. are
* Copyright (C) 1999 New Dimenstions Consulting, Inc. All
* Rights Reserved.
*
* Contributor(s):
* Robert Ginda, rginda@ndcico.com, original author
*
*
* depends on utils.js, events.js, and connection.js
*
* HTTP document class. Asynchronous retrieval of documents via HTTP.
*
* 1999-08-15 rginda@ndcico.com v1.0
*
*/
function CHTTPDoc (server, path)
{
this.GET_TIMEOUT = 2 * 60; /* 2 minute timeout on gets */
this.state = "new";
this.server = server;
this.path = path;
}
CHTTPDoc.prototype.get =
function http_get (ep)
{
this.connection = new CBSConnection();
if (!this.connection.connect (this.server, 80, (void 0), true))
{
this.state = "connect-error";
var e = new CEvent ("httpdoc", "complete", this, "onComplete");
this.eventPump.addEvent (e);
return false;
}
this.eventPump = ep;
this.state = "opened";
this.data = "";
this.duration = 0;
var e = new CEvent ("httpdoc", "poll", this, "onPoll");
this.eventPump.addEvent (e);
this.connection.sendData ("GET " + this.path + "\n");
this.startDate = new Date();
return true;
}
CHTTPDoc.prototype.onPoll =
function http_poll (e)
{
var line = "";
var ex, c;
var need_more = false;
if (this.duration < this.GET_TIMEOUT)
try
{
line = this.connection.readData (50);
need_more = true;
}
catch (ex)
{
if (typeof (ex) == "undefined")
{
line = "";
need_more = true;
}
else
{
dd ("** Caught exception: '" + ex + "' while receiving " +
this.server + this.path);
this.state = "read-error";
}
}
else
this.state = "receive-timeout";
switch (this.state)
{
case "opened":
case "receive-header":
if (this.state == "opened")
this.headers = "";
c = line.search(/\<html\>/i);
if (c != -1)
{
this.data = line.substr (c, line.length);
this.state = "receive-data";
line = line.substr (0, c);
c = this.data.search(/\<\/html\>/i);
if (c != -1)
{
this.docType = stringTrim(this.docType);
this.state = "complete";
need_more = false;
}
}
this.headers += line;
c = this.headers.search (/\<\!doctype/i);
if (c != -1)
{
this.docType = this.headers.substr (c, line.length);
if (this.state == "opened")
this.state = "receive-doctype";
this.headers = this.headers.substr (0, c);
}
if (this.state == "opened")
this.state = "receive-header";
break;
case "receive-doctype":
var c = line.search (/\<html\>/i);
if (c != -1)
{
this.docType = stringTrim(this.docType);
this.data = line.substr (c, line.length);
this.state = "receive-data";
line = line.substr (0, c);
}
this.docType += line;
break;
case "receive-data":
this.data += line;
var c = this.data.search(/\<\/html\>/i);
if (c != -1)
this.state = "complete";
break;
case "read-error":
case "receive-timeout":
break;
default:
dd ("** INVALID STATE in HTTPDoc object (" + this.state + ") **");
need_more = false;
this.state = "error";
break;
}
if ((this.state != "complete") && (need_more))
var e = new CEvent ("httpdoc", "poll", this, "onPoll");
else
{
this.connection.disconnect();
if (this.data)
{
var m = this.data.match(/\<title\>(.*)\<\/title\>/i);
if (m != null)
this.title = m[1];
else
this.title = "";
}
var e = new CEvent ("httpdoc", "complete", this, "onComplete");
}
this.eventPump.addEvent (e);
this.duration = (new Date() - this.startDate) / 1000;
return true;
}
CHTTPDoc.prototype.onComplete =
function http_complete(e)
{
return true;
}
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