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274 lines
8.4 KiB
274 lines
8.4 KiB
/* This file is part of the KDE project
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Copyright (C) 2001 Malte Starostik <malte@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <string.h>
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#include <time.h>
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#include <tqbuffer.h>
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#include <tqfile.h>
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#include <tqcache.h>
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#include <tqimage.h>
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#include <tqtimer.h>
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#include <kdatastream.h> // DO NOT REMOVE, otherwise bool marshalling breaks
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#include <kicontheme.h>
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#include <kimageio.h>
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#include <ksimpleconfig.h>
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#include <kstandarddirs.h>
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#include <tdeio/job.h>
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#include "favicons.moc"
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struct FaviconsModulePrivate
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{
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virtual ~FaviconsModulePrivate() { delete config; }
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struct DownloadInfo
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{
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TQString hostOrURL;
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bool isHost;
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TQByteArray iconData;
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};
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TQMap<TDEIO::Job *, DownloadInfo> downloads;
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TQStringList failedDownloads;
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KSimpleConfig *config;
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TQPtrList<TDEIO::Job> killJobs;
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TDEIO::MetaData metaData;
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TQString faviconsDir;
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TQCache<TQString> faviconsCache;
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};
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FaviconsModule::FaviconsModule(const TQCString &obj)
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: KDEDModule(obj)
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{
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// create our favicons folder so that TDEIconLoader knows about it
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d = new FaviconsModulePrivate;
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d->faviconsDir = TDEGlobal::dirs()->saveLocation( "cache", "favicons/" );
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d->faviconsDir.truncate(d->faviconsDir.length()-9); // Strip off "favicons/"
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d->metaData.insert("ssl_no_client_cert", "TRUE");
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d->metaData.insert("ssl_militant", "TRUE");
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d->metaData.insert("UseCache", "false");
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d->metaData.insert("cookies", "none");
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d->metaData.insert("no-auth", "true");
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d->config = new KSimpleConfig(locateLocal("data", "konqueror/faviconrc"));
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d->killJobs.setAutoDelete(true);
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d->faviconsCache.setAutoDelete(true);
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}
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FaviconsModule::~FaviconsModule()
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{
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delete d;
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}
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TQString removeSlash(TQString result)
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{
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for (unsigned int i = result.length() - 1; i > 0; --i)
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if (result[i] != '/')
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{
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result.truncate(i + 1);
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break;
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}
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return result;
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}
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TQString FaviconsModule::iconForURL(const KURL &url)
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{
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if (url.host().isEmpty())
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return TQString::null;
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TQString icon;
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TQString simplifiedURL = simplifyURL(url);
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TQString *iconURL = d->faviconsCache.find( removeSlash(simplifiedURL) );
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if (iconURL)
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icon = *iconURL;
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else
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icon = d->config->readEntry( removeSlash(simplifiedURL) );
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if (!icon.isEmpty())
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icon = iconNameFromURL(KURL( icon ));
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else
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icon = url.host();
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icon = "favicons/" + icon;
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if (TQFile::exists(d->faviconsDir+icon+".png"))
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return icon;
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return TQString::null;
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}
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TQString FaviconsModule::simplifyURL(const KURL &url)
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{
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// splat any = in the URL so it can be safely used as a config key
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TQString result = url.host() + url.path();
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for (unsigned int i = 0; i < result.length(); ++i)
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if (result[i] == '=')
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result[i] = '_';
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return result;
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}
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TQString FaviconsModule::iconNameFromURL(const KURL &iconURL)
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{
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if (iconURL.path() == "/favicon.ico")
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return iconURL.host();
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TQString result = simplifyURL(iconURL);
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// splat / so it can be safely used as a file name
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for (unsigned int i = 0; i < result.length(); ++i)
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if (result[i] == '/')
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result[i] = '_';
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TQString ext = result.right(4);
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if (ext == ".ico" || ext == ".png" || ext == ".xpm")
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result.remove(result.length() - 4, 4);
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return result;
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}
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bool FaviconsModule::isIconOld(const TQString &icon)
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{
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struct stat st;
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if (stat(TQFile::encodeName(icon), &st) != 0)
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return true; // Trigger a new download on error
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return (time(0) - st.st_mtime) > 604800; // arbitrary value (one week)
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}
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void FaviconsModule::setIconForURL(const KURL &url, const KURL &iconURL)
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{
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TQString simplifiedURL = simplifyURL(url);
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d->faviconsCache.insert(removeSlash(simplifiedURL), new TQString(iconURL.url()) );
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TQString iconName = "favicons/" + iconNameFromURL(iconURL);
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TQString iconFile = d->faviconsDir + iconName + ".png";
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if (!isIconOld(iconFile)) {
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emit iconChanged(false, simplifiedURL, iconName);
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return;
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}
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startDownload(simplifiedURL, false, iconURL);
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}
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void FaviconsModule::downloadHostIcon(const KURL &url)
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{
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TQString iconFile = d->faviconsDir + "favicons/" + url.host() + ".png";
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if (!isIconOld(iconFile))
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return;
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startDownload(url.host(), true, KURL(url, "/favicon.ico"));
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}
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void FaviconsModule::startDownload(const TQString &hostOrURL, bool isHost, const KURL &iconURL)
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{
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if (d->failedDownloads.contains(iconURL.url()))
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return;
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TDEIO::Job *job = TDEIO::get(iconURL, false, false);
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job->addMetaData(d->metaData);
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connect(job, TQT_SIGNAL(data(TDEIO::Job *, const TQByteArray &)), TQT_SLOT(slotData(TDEIO::Job *, const TQByteArray &)));
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connect(job, TQT_SIGNAL(result(TDEIO::Job *)), TQT_SLOT(slotResult(TDEIO::Job *)));
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connect(job, TQT_SIGNAL(infoMessage(TDEIO::Job *, const TQString &)), TQT_SLOT(slotInfoMessage(TDEIO::Job *, const TQString &)));
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FaviconsModulePrivate::DownloadInfo download;
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download.hostOrURL = hostOrURL;
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download.isHost = isHost;
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d->downloads.insert(job, download);
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}
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void FaviconsModule::slotData(TDEIO::Job *job, const TQByteArray &data)
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{
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FaviconsModulePrivate::DownloadInfo &download = d->downloads[job];
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unsigned int oldSize = download.iconData.size();
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if (oldSize > 0x10000)
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{
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d->killJobs.append(job);
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TQTimer::singleShot(0, this, TQT_SLOT(slotKill()));
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}
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download.iconData.resize(oldSize + data.size());
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memcpy(download.iconData.data() + oldSize, data.data(), data.size());
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}
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void FaviconsModule::slotResult(TDEIO::Job *job)
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{
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FaviconsModulePrivate::DownloadInfo download = d->downloads[job];
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d->downloads.remove(job);
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KURL iconURL = static_cast<TDEIO::TransferJob *>(job)->url();
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TQString iconName;
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if (!job->error())
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{
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TQBuffer buffer(download.iconData);
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buffer.open(IO_ReadOnly);
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TQImageIO io;
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io.setIODevice(TQT_TQIODEVICE(&buffer));
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io.setParameters("size=16");
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// Check here too, the job might have had no error, but the downloaded
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// file contains just a 404 message sent with a 200 status.
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// microsoft.com does that... (malte)
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if (io.read())
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{
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// Some sites have nasty 32x32 icons, according to the MS docs
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// IE ignores them, well, we scale them, otherwise the location
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// combo / menu will look quite ugly
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if (io.image().width() != TDEIcon::SizeSmall || io.image().height() != TDEIcon::SizeSmall)
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io.setImage(io.image().smoothScale(TDEIcon::SizeSmall, TDEIcon::SizeSmall));
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if (download.isHost)
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iconName = download.hostOrURL;
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else
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iconName = iconNameFromURL(iconURL);
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iconName = "favicons/" + iconName;
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io.setIODevice(0);
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io.setFileName(d->faviconsDir + iconName + ".png");
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io.setFormat("PNG");
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if (!io.write())
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iconName = TQString::null;
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else if (!download.isHost)
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d->config->writeEntry( removeSlash(download.hostOrURL), iconURL.url());
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}
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}
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if (iconName.isEmpty())
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d->failedDownloads.append(iconURL.url());
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emit iconChanged(download.isHost, download.hostOrURL, iconName);
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}
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void FaviconsModule::slotInfoMessage(TDEIO::Job *job, const TQString &msg)
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{
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emit infoMessage(static_cast<TDEIO::TransferJob *>( job )->url(), msg);
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}
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void FaviconsModule::slotKill()
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{
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d->killJobs.clear();
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}
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extern "C" {
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KDE_EXPORT KDEDModule *create_favicons(const TQCString &obj)
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{
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KImageIO::registerFormats();
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return new FaviconsModule(obj);
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}
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}
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