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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit84da08d7b7fcda12c85caeb5a10b4903770a6f69 (patch)
tree2a6aea76f2dfffb4cc04bb907c4725af94f70e72 /konq-plugins/akregator/feeddetector.cpp
downloadtdeaddons-84da08d7b7fcda12c85caeb5a10b4903770a6f69.tar.gz
tdeaddons-84da08d7b7fcda12c85caeb5a10b4903770a6f69.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeaddons@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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diff --git a/konq-plugins/akregator/feeddetector.cpp b/konq-plugins/akregator/feeddetector.cpp
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+/*
+ This file is part of Akregator.
+
+ Copyright (C) 2004 Teemu Rytilahti <tpr@d5k.net>
+
+ 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.
+
+ As a special exception, permission is given to link this program
+ with any edition of Qt, and distribute the resulting executable,
+ without including the source code for Qt in the source distribution.
+*/
+
+#include <qregexp.h>
+#include <qstring.h>
+#include <qstringlist.h>
+#include <qvaluelist.h>
+#include <kcharsets.h>
+
+#include "feeddetector.h"
+
+
+using namespace Akregator;
+
+FeedDetectorEntryList FeedDetector::extractFromLinkTags(const QString& s)
+{
+ //reduce all sequences of spaces, newlines etc. to one space:
+ QString str = s.simplifyWhiteSpace();
+
+ // extracts <link> tags
+ QRegExp reLinkTag("<[\\s]?LINK[^>]*REL[\\s]?=[\\s]?\\\"[\\s]?(ALTERNATE|SERVICE\\.FEED)[\\s]?\\\"[^>]*>", false);
+
+ // extracts the URL (href="url")
+ QRegExp reHref("HREF[\\s]?=[\\s]?\\\"([^\\\"]*)\\\"", false);
+ // extracts type attribute
+ QRegExp reType("TYPE[\\s]?=[\\s]?\\\"([^\\\"]*)\\\"", false);
+ // extracts the title (title="title")
+ QRegExp reTitle("TITLE[\\s]?=[\\s]?\\\"([^\\\"]*)\\\"", false);
+
+ int pos = 0;
+ int matchpos = 0;
+
+ // get all <link> tags
+ QStringList linkTags;
+ //int strlength = str.length();
+ while ( matchpos != -1 )
+ {
+ matchpos = reLinkTag.search(str, pos);
+ if (matchpos != -1)
+ {
+ linkTags.append( str.mid(matchpos, reLinkTag.matchedLength()) );
+ pos = matchpos + reLinkTag.matchedLength();
+ }
+ }
+
+ FeedDetectorEntryList list;
+
+ for ( QStringList::Iterator it = linkTags.begin(); it != linkTags.end(); ++it )
+ {
+ QString type;
+ int pos = reType.search(*it, 0);
+ if (pos != -1)
+ type = reType.cap(1).lower();
+
+ // we accept only type attributes indicating a feed
+ if ( type != "application/rss+xml" && type != "application/rdf+xml"
+ && type != "application/atom+xml" && type != "text/xml" )
+ continue;
+
+ QString title;
+ pos = reTitle.search(*it, 0);
+ if (pos != -1)
+ title = reTitle.cap(1);
+
+ title = KCharsets::resolveEntities(title);
+
+ QString url;
+ pos = reHref.search(*it, 0);
+ if (pos != -1)
+ url = reHref.cap(1);
+
+ url = KCharsets::resolveEntities(url);
+
+ // if feed has no title, use the url as preliminary title (until feed is parsed)
+ if ( title.isEmpty() )
+ title = url;
+
+ if ( !url.isEmpty() )
+ list.append(FeedDetectorEntry(url, title) );
+ }
+
+
+ return list;
+}
+
+QStringList FeedDetector::extractBruteForce(const QString& s)
+{
+ QString str = s.simplifyWhiteSpace();
+
+ QRegExp reAhrefTag("<[\\s]?A[^>]?HREF=[\\s]?\\\"[^\\\"]*\\\"[^>]*>", false);
+
+ // extracts the URL (href="url")
+ QRegExp reHref("HREF[\\s]?=[\\s]?\\\"([^\\\"]*)\\\"", false);
+
+ QRegExp rssrdfxml(".*(RSS|RDF|XML)", false);
+
+ int pos = 0;
+ int matchpos = 0;
+
+ // get all <a href> tags and capture url
+ QStringList list;
+ //int strlength = str.length();
+ while ( matchpos != -1 )
+ {
+ matchpos = reAhrefTag.search(str, pos);
+ if ( matchpos != -1 )
+ {
+ QString ahref = str.mid(matchpos, reAhrefTag.matchedLength());
+ int hrefpos = reHref.search(ahref, 0);
+ if ( hrefpos != -1 )
+ {
+ QString url = reHref.cap(1);
+
+ url = KCharsets::resolveEntities(url);
+
+ if ( rssrdfxml.exactMatch(url) )
+ list.append(url);
+ }
+
+ pos = matchpos + reAhrefTag.matchedLength();
+ }
+ }
+
+ return list;
+
+}