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Diffstat (limited to 'kio/httpfilter/httpfilter.cc')
| -rw-r--r-- | kio/httpfilter/httpfilter.cc | 372 |
1 files changed, 0 insertions, 372 deletions
diff --git a/kio/httpfilter/httpfilter.cc b/kio/httpfilter/httpfilter.cc deleted file mode 100644 index 0f2adf20a..000000000 --- a/kio/httpfilter/httpfilter.cc +++ /dev/null @@ -1,372 +0,0 @@ -/* - This file is part of the KDE libraries - Copyright (c) 2002 Waldo Bastian <bastian@kde.org> - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public - License version 2 as published by the Free Software Foundation. - - 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public License - along with this library; see the file COPYING.LIB. If not, write to - the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. -*/ - -#include <kio/global.h> - -#include <klocale.h> - -#include "httpfilter.h" - -HTTPFilterBase::HTTPFilterBase() - : last(0) -{ -} - -HTTPFilterBase::~HTTPFilterBase() -{ - delete last; -} - -void -HTTPFilterBase::chain(HTTPFilterBase *previous) -{ - last = previous; - connect(last, TQT_SIGNAL(output(const TQByteArray &)), - this, TQT_SLOT(slotInput(const TQByteArray &))); -} - -HTTPFilterChain::HTTPFilterChain() - : first(0) -{ -} - -void -HTTPFilterChain::addFilter(HTTPFilterBase *filter) -{ - if (!last) - { - first = filter; - } - else - { - disconnect(last, TQT_SIGNAL(output(const TQByteArray &)), 0, 0); - filter->chain(last); - } - last = filter; - connect(filter, TQT_SIGNAL(output(const TQByteArray &)), - this, TQT_SIGNAL(output(const TQByteArray &))); - connect(filter, TQT_SIGNAL(error(int, const TQString &)), - this, TQT_SIGNAL(error(int, const TQString &))); -} - -void -HTTPFilterChain::slotInput(const TQByteArray &d) -{ - if (first) - first->slotInput(d); - else - emit output(d); -} - -HTTPFilterMD5::HTTPFilterMD5() -{ -} - -TQString -HTTPFilterMD5::md5() -{ - return TQString::fromLatin1(context.base64Digest()); -} - -void -HTTPFilterMD5::slotInput(const TQByteArray &d) -{ - context.update(d); - emit output(d); -} - - -HTTPFilterGZip::HTTPFilterGZip() -{ -#ifdef DO_GZIP - bHasHeader = false; - bHasFinished = false; - bPlainText = false; - bEatTrailer = false; - bEof = false; - zstr.next_in = (Bytef *) Z_NULL; - zstr.avail_in = 0; - zstr.zalloc = Z_NULL; - zstr.zfree = Z_NULL; - zstr.opaque = Z_NULL; - - inflateInit2(&zstr, -MAX_WBITS); - - iTrailer = 8; -#endif -} - -HTTPFilterGZip::~HTTPFilterGZip() -{ -#ifdef DO_GZIP - inflateEnd(&zstr); -#endif - -} - -/* The get_byte() and checkHeader() functions are modified version from */ -/* the correpsonding functions that can be found in zlib, the following */ -/* copyright notice applies to these functions: */ - -/* zlib.h -- interface of the 'zlib' general purpose compression library - version 1.1.3, July 9th, 1998 - - Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - - - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt - (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). -*/ - -int -HTTPFilterGZip::get_byte() -{ -#ifdef DO_GZIP - if (bEof) return EOF; - if (zstr.avail_in == 0) - { - bEof = true; - return EOF; - } - zstr.avail_in--; - zstr.total_in++; - return *(zstr.next_in)++; -#else - return 0; -#endif -} - -#ifdef DO_GZIP - -static int gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ -#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define RESERVED 0xE0 /* bits 5..7: reserved */ -#endif - -// 0 : ok -// 1 : not gzip -// 2 : no header -int -HTTPFilterGZip::checkHeader() -{ -#ifdef DO_GZIP - uInt len; - int c; - - /* Check the gzip magic header */ - for (len = 0; len < 2; len++) { - c = get_byte(); - if (c != gz_magic[len]) { - if (len != 0) - { - zstr.avail_in++; - zstr.next_in--; - } - if (c != EOF) { - zstr.avail_in++; - zstr.next_in--; - return 1; - } - return 2; - } - } - - int method = get_byte(); /* method byte */ - int flags = get_byte(); /* flags byte */ - - if (method != Z_DEFLATED || (flags & RESERVED) != 0) { - return bEof ? 2 : 1; - } - - /* Discard time, xflags and OS code: */ - for (len = 0; len < 6; len++) (void)get_byte(); - - if ((flags & EXTRA_FIELD) != 0) { /* skip the extra field */ - len = (uInt)get_byte(); - len += ((uInt)get_byte())<<8; - /* len is garbage if EOF but the loop below will quit anyway */ - while (len-- != 0 && get_byte() != EOF) ; - } - if ((flags & ORIG_NAME) != 0) { /* skip the original file name */ - while ((c = get_byte()) != 0 && c != EOF) ; - } - if ((flags & COMMENT) != 0) { /* skip the .gz file comment */ - while ((c = get_byte()) != 0 && c != EOF) ; - } - if ((flags & HEAD_CRC) != 0) { /* skip the header crc */ - for (len = 0; len < 2; len++) (void)get_byte(); - } - - return bEof ? 2 : 0; -#else - return 0; -#endif -} - -void -HTTPFilterGZip::slotInput(const TQByteArray &d) -{ -#ifdef DO_GZIP - if (bPlainText) - { - emit output(d); - return; - } - if (d.size() == 0) - { - if (bEatTrailer) - bHasFinished = true; - if (!bHasFinished) - { - // Make sure we get the last bytes still in the pipe. - // Needed with "deflate". - TQByteArray flush(4); - flush.fill(0); - slotInput(flush); - if (!bHasFinished && !bHasHeader) - { - // Send as-is - emit output(headerData); - bHasFinished = true; - // End of data - emit output(TQByteArray()); - } - } - if (!bHasFinished) - emit error( TDEIO::ERR_SLAVE_DEFINED, i18n("Unexpected end of data, some information may be lost.")); - return; - } - if (bHasFinished) - return; - - if (bEatTrailer) - { - iTrailer -= d.size(); - if (iTrailer <= 0) - { - bHasFinished = true; - // End of data - emit output(TQByteArray()); - } - return; - } - - if (!bHasHeader) - { - bEof = false; - - // Add data to header. - int orig_size = headerData.size(); - headerData.resize(orig_size+d.size()); - memcpy(headerData.data()+orig_size, d.data(), d.size()); - - zstr.avail_in = headerData.size(); - zstr.next_in = (Bytef *) headerData.data(); - - int result = checkHeader(); - if (result == 1) - { - bPlainText = true; - output(headerData); - return; - } - - if (result != 0) - return; // next time better - - bHasHeader = true; - } - else - { - zstr.avail_in = d.size(); - zstr.next_in = (Bytef *) d.data(); - } - - while( zstr.avail_in ) - { - char buf[8192]; - zstr.next_out = (Bytef *) buf; - zstr.avail_out = 8192; - int result = inflate( &zstr, Z_NO_FLUSH ); - if ((result != Z_OK) && (result != Z_STREAM_END)) - { - emit error( TDEIO::ERR_SLAVE_DEFINED, i18n("Receiving corrupt data.")); - break; - } - int bytesOut = 8192 - zstr.avail_out; - if (bytesOut) - { - TQByteArray d; - d.setRawData( buf, bytesOut ); - emit output(d); - d.resetRawData( buf, bytesOut ); - } - if (result == Z_STREAM_END) - { - if (iTrailer) - { - bEatTrailer = true; - } - else - { - bHasFinished = true; - // End of data - emit output(TQByteArray()); - } - return; - } - } -#endif -} - -HTTPFilterDeflate::HTTPFilterDeflate() -{ -#ifdef DO_GZIP - bHasHeader = true; - iTrailer = 0; -#endif -} - -#include "httpfilter.moc" |