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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
commitce4a32fe52ef09d8f5ff1dd22c001110902b60a2 (patch)
tree5ac38a06f3dde268dc7927dc155896926aaf7012 /kioslave/http/http_cache_cleaner.cpp
downloadtdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.tar.gz
tdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.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/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kioslave/http/http_cache_cleaner.cpp')
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diff --git a/kioslave/http/http_cache_cleaner.cpp b/kioslave/http/http_cache_cleaner.cpp
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+++ b/kioslave/http/http_cache_cleaner.cpp
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+/*
+This file is part of KDE
+
+ Copyright (C) 1999-2000 Waldo Bastian (bastian@kde.org)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+//----------------------------------------------------------------------------
+//
+// KDE Http Cache cleanup tool
+// $Id$
+
+#include <time.h>
+#include <stdlib.h>
+
+#include <qdir.h>
+#include <qstring.h>
+#include <qptrlist.h>
+
+#include <kinstance.h>
+#include <klocale.h>
+#include <kcmdlineargs.h>
+#include <kglobal.h>
+#include <kstandarddirs.h>
+#include <dcopclient.h>
+#include <kprotocolmanager.h>
+
+#include <unistd.h>
+
+#include <kdebug.h>
+
+time_t currentDate;
+int m_maxCacheAge;
+int m_maxCacheSize;
+
+static const char appName[] = "kio_http_cache_cleaner";
+
+static const char description[] = I18N_NOOP("KDE HTTP cache maintenance tool");
+
+static const char version[] = "1.0.0";
+
+static const KCmdLineOptions options[] =
+{
+ {"clear-all", I18N_NOOP("Empty the cache"), 0},
+ KCmdLineLastOption
+};
+
+struct FileInfo {
+ QString name;
+ int size; // Size in Kb.
+ int age;
+};
+
+template class QPtrList<FileInfo>;
+
+class FileInfoList : public QPtrList<FileInfo>
+{
+public:
+ FileInfoList() : QPtrList<FileInfo>() { }
+ int compareItems(QPtrCollection::Item item1, QPtrCollection::Item item2)
+ { return ((FileInfo *)item1)->age - ((FileInfo *)item2)->age; }
+};
+
+// !START OF SYNC!
+// Keep the following in sync with the cache code in http.cc
+#define CACHE_REVISION "7\n"
+
+FileInfo *readEntry( const QString &filename)
+{
+ QCString CEF = QFile::encodeName(filename);
+ FILE *fs = fopen( CEF.data(), "r");
+ if (!fs)
+ return 0;
+
+ char buffer[401];
+ bool ok = true;
+
+ // CacheRevision
+ if (ok && (!fgets(buffer, 400, fs)))
+ ok = false;
+ if (ok && (strcmp(buffer, CACHE_REVISION) != 0))
+ ok = false;
+
+ // Full URL
+ if (ok && (!fgets(buffer, 400, fs)))
+ ok = false;
+
+ time_t creationDate;
+ int age =0;
+
+ // Creation Date
+ if (ok && (!fgets(buffer, 400, fs)))
+ ok = false;
+ if (ok)
+ {
+ creationDate = (time_t) strtoul(buffer, 0, 10);
+ age = (int) difftime(currentDate, creationDate);
+ if ( m_maxCacheAge && ( age > m_maxCacheAge))
+ {
+ ok = false; // Expired
+ }
+ }
+
+ // Expiration Date
+ if (ok && (!fgets(buffer, 400, fs)))
+ ok = false;
+ if (ok)
+ {
+//WABA: It seems I slightly misunderstood the meaning of "Expire:" header.
+#if 0
+ time_t expireDate;
+ expireDate = (time_t) strtoul(buffer, 0, 10);
+ if (expireDate && (expireDate < currentDate))
+ ok = false; // Expired
+#endif
+ }
+
+ // ETag
+ if (ok && (!fgets(buffer, 400, fs)))
+ ok = false;
+ if (ok)
+ {
+ // Ignore ETag
+ }
+
+ // Last-Modified
+ if (ok && (!fgets(buffer, 400, fs)))
+ ok = false;
+ if (ok)
+ {
+ // Ignore Last-Modified
+ }
+
+
+ fclose(fs);
+ if (ok)
+ {
+ FileInfo *info = new FileInfo;
+ info->age = age;
+ return info;
+ }
+
+ unlink( CEF.data());
+ return 0;
+}
+// Keep the above in sync with the cache code in http.cc
+// !END OF SYNC!
+
+void scanDirectory(FileInfoList &fileEntries, const QString &name, const QString &strDir)
+{
+ QDir dir(strDir);
+ if (!dir.exists()) return;
+
+ QFileInfoList *newEntries = (QFileInfoList *) dir.entryInfoList();
+
+ if (!newEntries) return; // Directory not accessible ??
+
+ for(QFileInfo *qFileInfo = newEntries->first();
+ qFileInfo;
+ qFileInfo = newEntries->next())
+ {
+ if (qFileInfo->isFile())
+ {
+ FileInfo *fileInfo = readEntry( strDir + "/" + qFileInfo->fileName());
+ if (fileInfo)
+ {
+ fileInfo->name = name + "/" + qFileInfo->fileName();
+ fileInfo->size = (qFileInfo->size() + 1023) / 1024;
+ fileEntries.append(fileInfo);
+ }
+ }
+ }
+}
+
+extern "C" KDE_EXPORT int kdemain(int argc, char **argv)
+{
+ KLocale::setMainCatalogue("kdelibs");
+ KCmdLineArgs::init( argc, argv, appName,
+ I18N_NOOP("KDE HTTP cache maintenance tool"),
+ description, version, true);
+
+ KCmdLineArgs::addCmdLineOptions( options );
+
+ KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
+
+ bool deleteAll = args->isSet("clear-all");
+
+ KInstance ins( appName );
+
+ if (!deleteAll)
+ {
+ DCOPClient *dcop = new DCOPClient();
+ QCString name = dcop->registerAs(appName, false);
+ if (!name.isEmpty() && (name != appName))
+ {
+ fprintf(stderr, "%s: Already running! (%s)\n", appName, name.data());
+ return 0;
+ }
+ }
+
+ currentDate = time(0);
+ m_maxCacheAge = KProtocolManager::maxCacheAge();
+ m_maxCacheSize = KProtocolManager::maxCacheSize();
+
+ if (deleteAll)
+ m_maxCacheSize = -1;
+
+ QString strCacheDir = KGlobal::dirs()->saveLocation("cache", "http");
+
+ QDir cacheDir( strCacheDir );
+ if (!cacheDir.exists())
+ {
+ fprintf(stderr, "%s: '%s' does not exist.\n", appName, strCacheDir.ascii());
+ return 0;
+ }
+
+ QStringList dirs = cacheDir.entryList( );
+
+ FileInfoList cachedEntries;
+
+ for(QStringList::Iterator it = dirs.begin();
+ it != dirs.end();
+ it++)
+ {
+ if ((*it)[0] != '.')
+ {
+ scanDirectory( cachedEntries, *it, strCacheDir + "/" + *it);
+ }
+ }
+
+ cachedEntries.sort();
+
+ int maxCachedSize = m_maxCacheSize / 2;
+
+ for(FileInfo *fileInfo = cachedEntries.first();
+ fileInfo;
+ fileInfo = cachedEntries.next())
+ {
+ if (fileInfo->size > maxCachedSize)
+ {
+ QCString filename = QFile::encodeName( strCacheDir + "/" + fileInfo->name);
+ unlink(filename.data());
+// kdDebug () << appName << ": Object too big, deleting '" << filename.data() << "' (" << result<< ")" << endl;
+ }
+ }
+
+ int totalSize = 0;
+
+ for(FileInfo *fileInfo = cachedEntries.first();
+ fileInfo;
+ fileInfo = cachedEntries.next())
+ {
+ if ((totalSize + fileInfo->size) > m_maxCacheSize)
+ {
+ QCString filename = QFile::encodeName( strCacheDir + "/" + fileInfo->name);
+ unlink(filename.data());
+// kdDebug () << appName << ": Cache too big, deleting '" << filename.data() << "' (" << fileInfo->size << ")" << endl;
+ }
+ else
+ {
+ totalSize += fileInfo->size;
+// fprintf(stderr, "Keep in cache: %s %d %d total = %d\n", fileInfo->name.ascii(), fileInfo->size, fileInfo->age, totalSize);
+ }
+ }
+ kdDebug () << appName << ": Current size of cache = " << totalSize << " kB." << endl;
+ return 0;
+}
+
+