diff options
| author | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
|---|---|---|
| committer | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
| commit | 48540940b6c28bb4378abfeb500ec45a625b37b6 (patch) | |
| tree | 2ef294c0763e802f91d868bdef4229b6868527de /protocols/JabberG/jabber_zstream.cpp | |
| parent | 5c350913f011e119127baeb32a6aedeb4f0d33bc (diff) | |
initial commit
git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'protocols/JabberG/jabber_zstream.cpp')
| -rw-r--r-- | protocols/JabberG/jabber_zstream.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/protocols/JabberG/jabber_zstream.cpp b/protocols/JabberG/jabber_zstream.cpp new file mode 100644 index 0000000000..2d7967f0a4 --- /dev/null +++ b/protocols/JabberG/jabber_zstream.cpp @@ -0,0 +1,132 @@ +/*
+
+Jabber Protocol Plugin for Miranda IM
+XEP-0138 (Stream Compression) implementation
+
+Copyright ( C ) 2005-11 George Hazan
+Copyright ( C ) 2007 Kostya Chukavin, Taras Zackrepa
+
+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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+Revision : $Revision: 13898 $
+Last change on : $Date: 2011-11-02 05:38:43 +0200 (Ср, 02 ноя 2011) $
+Last change by : $Author: borkra $
+
+*/
+
+#include "jabber.h"
+
+BOOL ThreadData::zlibInit( void )
+{
+ proto->Log( "Zlib init..." );
+ zStreamIn.zalloc = Z_NULL;
+ zStreamIn.zfree = Z_NULL;
+ zStreamIn.opaque = Z_NULL;
+ zStreamIn.next_in = Z_NULL;
+ zStreamIn.avail_in = 0;
+
+ zStreamOut.zalloc = Z_NULL;
+ zStreamOut.zfree = Z_NULL;
+ zStreamOut.opaque = Z_NULL;
+
+ if ( deflateInit( &zStreamOut, Z_BEST_COMPRESSION) != Z_OK ) return FALSE;
+ if ( inflateInit( &zStreamIn ) != Z_OK ) return FALSE;
+
+ zRecvReady = true;
+ return TRUE;
+}
+
+void ThreadData::zlibUninit( void )
+{
+ deflateEnd( &zStreamOut );
+ inflateEnd( &zStreamIn );
+}
+
+int ThreadData::zlibSend( char* data, int datalen )
+{
+ char send_data[ ZLIB_CHUNK_SIZE ];
+ int bytesOut = 0;
+
+ zStreamOut.avail_in = datalen;
+ zStreamOut.next_in = ( unsigned char* )data;
+
+ do {
+ zStreamOut.avail_out = ZLIB_CHUNK_SIZE;
+ zStreamOut.next_out = ( unsigned char* )send_data;
+
+ switch ( deflate( &zStreamOut, Z_SYNC_FLUSH )) {
+ case Z_OK: proto->Log( "Deflate: Z_OK" ); break;
+ case Z_BUF_ERROR: proto->Log( "Deflate: Z_BUF_ERROR" ); break;
+ case Z_DATA_ERROR: proto->Log( "Deflate: Z_DATA_ERROR" ); break;
+ case Z_MEM_ERROR: proto->Log( "Deflate: Z_MEM_ERROR" ); break;
+ }
+
+ int len, send_datalen = ZLIB_CHUNK_SIZE - zStreamOut.avail_out;
+
+ if (( len = sendws( send_data, send_datalen, MSG_NODUMP )) == SOCKET_ERROR || len != send_datalen ) {
+ proto->Log( "Netlib_Send() failed, error=%d", WSAGetLastError());
+ return FALSE;
+ }
+
+ bytesOut += len;
+ }
+ while ( zStreamOut.avail_out == 0 );
+
+ if ( DBGetContactSettingByte( NULL, "Netlib", "DumpSent", TRUE ) == TRUE )
+ proto->Log( "(ZLIB) Data sent\n%s\n===OUT: %d(%d) bytes", data, datalen, bytesOut );
+
+ return TRUE;
+}
+
+int ThreadData::zlibRecv( char* data, long datalen )
+{
+ if ( zRecvReady ) {
+retry:
+ zRecvDatalen = recvws( zRecvData, ZLIB_CHUNK_SIZE, MSG_NODUMP );
+ if ( zRecvDatalen == SOCKET_ERROR ) {
+ proto->Log( "Netlib_Recv() failed, error=%d", WSAGetLastError());
+ return SOCKET_ERROR;
+ }
+ if ( zRecvDatalen == 0 )
+ return 0;
+
+ zStreamIn.avail_in = zRecvDatalen;
+ zStreamIn.next_in = ( Bytef* )zRecvData;
+ }
+
+ zStreamIn.avail_out = datalen;
+ zStreamIn.next_out = ( BYTE* )data;
+
+ switch ( inflate( &zStreamIn, Z_NO_FLUSH )) {
+ case Z_OK: proto->Log( "Inflate: Z_OK" ); break;
+ case Z_BUF_ERROR: proto->Log( "Inflate: Z_BUF_ERROR" ); break;
+ case Z_DATA_ERROR: proto->Log( "Inflate: Z_DATA_ERROR" ); break;
+ case Z_MEM_ERROR: proto->Log( "Inflate: Z_MEM_ERROR" ); break;
+ }
+
+ int len = datalen - zStreamIn.avail_out;
+ if ( DBGetContactSettingByte( NULL, "Netlib", "DumpRecv", TRUE ) == TRUE ) {
+ char* szLogBuffer = ( char* )alloca( len+32 );
+ memcpy( szLogBuffer, data, len );
+ szLogBuffer[ len ]='\0';
+ proto->Log( "(ZLIB) Data received\n%s\n===IN: %d(%d) bytes", szLogBuffer, len, zRecvDatalen );
+ }
+
+ if ( len == 0 )
+ goto retry;
+
+ zRecvReady = ( zStreamIn.avail_out != 0 );
+ return len;
+}
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