Updated to final KDE3 ktorrent release (2.2.6)

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/ktorrent@1077377 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 202 insertions, 0 deletions

diff --git a/plugins/rssfeed/rsslinkdownloader.cpp b/plugins/rssfeed/rsslinkdownloader.cpp
new file mode 100644
index 0000000..4b0f390
--- /dev/null
+++ b/plugins/rssfeed/rsslinkdownloader.cpp
@@ -0,0 +1,202 @@
+/***************************************************************************
+ *   Copyright (C) 2006 by Alan Jones                                      *
+ *   skyphyr@gmail.com                                                     *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
+ ***************************************************************************/
+#include "rsslinkdownloader.h"
+
+#include <klocale.h>
+#include <kmimetype.h>
+#include <kmessagebox.h>
+
+#include <qfile.h>
+
+#include "../../libktorrent/torrent/bdecoder.h"
+#include "../../libktorrent/torrent/bnode.h"
+
+using namespace bt;
+
+namespace kt
+{
+
+	RssLinkDownloader::RssLinkDownloader(CoreInterface* core, QString link, RssFilter * filter, QObject * parent) : QObject (parent)
+		{
+			//tempFile.setAutoDelete(true);
+			m_core = core;
+			firstLink = true;
+			curFilter = filter;
+			if (!KURL(link).isValid())
+			{
+				// no valid URL, so just display an error message
+				KMessageBox::error(0,i18n("Failed to find and download a valid torrent for %1").arg(curLink));
+				QTimer::singleShot(50,this,SLOT(suicide()));
+			}
+			else
+			{
+				//first let's download the link so we can process it to check for the actual torrent
+				curLink = curSubLink = link;
+				curFile = KIO::storedGet(link,false,false);
+				connect(curFile, SIGNAL(result(KIO::Job*)),this,SLOT(processLink( KIO::Job* )));
+			}
+		}
+	
+	RssLinkDownloader::~RssLinkDownloader()
+		{
+			
+		}
+		
+	void RssLinkDownloader::processLink(KIO::Job* jobStatus)
+		{
+		
+		if (!jobStatus->error())
+			{
+			//the file downloaded ok - so let's check if it's a torrent
+			KMimeType linkType = *KMimeType::findByContent(curFile->data());
+			if (linkType.is("text/html"))
+				{
+				if (firstLink)
+					{
+					KURL url = curLink;
+					//let's go through the data and populate our sublink array
+					QTextStream html(curFile->data(), IO_ReadOnly);
+					
+					//go through a line at a time checking for a torrent
+					QString htmlline = html.readLine();
+					while (!htmlline.isNull())
+						{
+						QRegExp hrefTags = QString("<A.*HREF.*</A");
+						hrefTags.setCaseSensitive(false);
+						hrefTags.setMinimal(true);
+						
+						int matchPos = 0;
+						while (htmlline.find(hrefTags, matchPos) >= 0)
+							{
+							matchPos += hrefTags.matchedLength();
+							//we're found an <a href tag - let's check it if contains download
+							QRegExp hrefText = QString("d(own)?load");
+							hrefText.setCaseSensitive(false);
+							
+							if (!hrefTags.capturedTexts()[0].contains(hrefText))
+								{
+								//link text doesn't contain dload/download
+								continue;
+								}
+								
+							//we're found an <a href tag - now let's the the url out of it
+							hrefText = QString("HREF=\"?([^\">< ]*)[\" ]");
+							hrefText.setCaseSensitive(false);
+				
+							hrefTags.capturedTexts()[0].find(hrefText);
+							//lets get the captured
+							QString hrefLink = hrefText.capturedTexts()[1];
+								
+							if (hrefLink.startsWith("/"))
+								{
+								hrefLink = url.protocol() + "://" + url.host() + hrefLink;
+								} 
+							else if (!hrefLink.startsWith("http://", false)) 
+								{
+								hrefLink = url.url().left(url.url().findRev("/")+1) + hrefLink;
+								}
+								
+							subLinks.append(hrefLink);
+							
+							}
+							
+							//run the query again
+							htmlline = html.readLine();
+						}
+						
+						
+						firstLink = false;
+					}
+				}
+			else
+				{
+			
+				//I know this may check a file which we've already been told is html, but sometimes it lies
+				try
+					{
+						//last ditched brute force attempt to check if it's a torrent file
+						BNode* node = 0;
+						BDecoder decoder(curFile->data(),false);
+						node = decoder.decode();
+						BDictNode* dict = dynamic_cast<BDictNode*>(node);
+						
+						if (dict)
+						{
+							delete node;
+							node = dict = 0;
+							
+							if (curFilter)
+							{
+								m_core->loadSilently( curSubLink );
+								emit linkDownloaded( curLink, 3);
+							}
+							else
+							{
+								m_core->load( curSubLink );
+								emit linkDownloaded( curLink, 1);
+							}
+							
+							//delete ourself and finish
+							deleteLater();
+							return;
+						}
+						
+					
+					}
+				catch (...)
+					{
+						//we can just ignore any errors here
+					}
+				}
+				
+			}
+		//curFile->deleteLater();
+		
+		//check for the next item
+		if (subLinks.isEmpty())
+			{
+			if (curFilter)
+				{
+				//we've failed to download a torrent for this match
+				curFilter->deleteMatch( curLink );
+				}
+			else
+				{
+				//failed to download a selected article from a feed
+				KMessageBox::error(0,i18n("Failed to find and download a valid torrent for %1").arg(curLink));
+				}
+				deleteLater();
+			}
+		else
+			{
+			curSubLink = subLinks.first();
+			subLinks.pop_front();
+			curFile = KIO::storedGet(curSubLink,false,false);
+			connect(curFile, SIGNAL(result(KIO::Job*)),this,SLOT(processLink( KIO::Job* )));
+			}
+		}
+	
+	
+	void RssLinkDownloader::suicide()
+	{
+		deleteLater();
+	}
+
+}
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