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/*
Copyright (C) 2012 Lasath Fernando <kde@lasath.org>
Copyright (C) 2012 David Edmundson <kde@davidedmundson.co.uk>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "filters.h"
#include <QImageReader>
#include <KUrl>
#include <KProtocolInfo>
#include <KDebug>
UrlFilter::UrlFilter(QObject *parent)
: AbstractMessageFilter(parent)
{
}
void UrlFilter::filterMessage(Message &info) {
QString message = info.mainMessagePart();
//FIXME: make "Urls" into a constant
QVariantList urls = info.property("Urls").toList();
// link detection
QRegExp link(QLatin1String("\\b(?:(\\w+)://|(www\\.))([^\\s]+)"));
int fromIndex = 0;
while ((fromIndex = message.indexOf(link, fromIndex)) != -1) {
QString realUrl = link.cap(0);
QString protocol = link.cap(1);
//if cap(1) is empty cap(2) was matched -> starts with www.
const bool startsWithWWW = link.cap(1).isEmpty();
kDebug() << "Found URL " << realUrl << "with protocol : " << (startsWithWWW ? QLatin1String("http") : protocol);
// if url has a supported protocol
if (startsWithWWW || KProtocolInfo::protocols().contains(protocol, Qt::CaseInsensitive)) {
// text not wanted in a link ( <,> )
QRegExp unwanted(QLatin1String("(<|>)"));
if (!realUrl.contains(unwanted)) {
// string to show to user
QString shownUrl = realUrl;
// check for newline and cut link when found
if (realUrl.contains(QLatin1String(("<br/>")))) {
int findIndex = realUrl.indexOf(QLatin1String("<br/>"));
realUrl.truncate(findIndex);
shownUrl.truncate(findIndex);
}
// check prefix
if (startsWithWWW) {
realUrl.prepend(QLatin1String("http://"));
}
// if the url is changed, show in chat what the user typed in
QString link = QLatin1String("<a href='") + realUrl + QLatin1String("'>") + shownUrl + QLatin1String("</a>");
message.replace(fromIndex, shownUrl.length(), link);
// advance position otherwise I end up parsing the same link
fromIndex += link.length();
} else {
fromIndex += realUrl.length();
}
urls.append(KUrl(realUrl));
} else {
fromIndex += link.matchedLength();
}
}
info.setProperty("Urls", urls);
info.setMainMessagePart(message);
}
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