1 files changed, 147 insertions, 0 deletions
diff --git a/konq-plugins/akregator/feeddetector.cpp b/konq-plugins/akregator/feeddetector.cpp
new file mode 100644
index 0000000..928a282
--- /dev/null
+++ b/konq-plugins/akregator/feeddetector.cpp
@@ -0,0 +1,147 @@
+/*
+    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;
+    
+}