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-rw-r--r--tdeioslave/cgi/cgi.cpp274
1 files changed, 274 insertions, 0 deletions
diff --git a/tdeioslave/cgi/cgi.cpp b/tdeioslave/cgi/cgi.cpp
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+++ b/tdeioslave/cgi/cgi.cpp
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+/*
+ Copyright (C) 2002 Cornelius Schumacher <[email protected]>
+ Copyright 2006 Michael Pyne <[email protected]>
+
+ 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*/
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <tqdir.h>
+#include <tqregexp.h>
+
+#include <kdebug.h>
+#include <kprocess.h>
+#include <kstandarddirs.h>
+#include <kinstance.h>
+#include <klocale.h>
+#include <tdeconfig.h>
+
+#include "cgi.h"
+
+using namespace TDEIO;
+
+CgiProtocol::CgiProtocol( const TQCString &pool, const TQCString &app )
+ : SlaveBase( "cgi", pool, app )
+{
+ kdDebug(7124) << "CgiProtocol::CgiProtocol" << endl;
+
+ TDEConfig cfg( "kcmcgirc" );
+ cfg.setGroup( "General" );
+ mCgiPaths = cfg.readListEntry( "Paths" );
+}
+
+CgiProtocol::~CgiProtocol()
+{
+ kdDebug(7124) << "CgiProtocol::~CgiProtocol" << endl;
+}
+
+/**
+ * Search in reverse order through a TQByteArray for a given character. The position
+ * of the character is returned, or -1 if it was not found.
+ */
+static int qByteArrayFindRev( const TQByteArray &ba, char c, int startIndex )
+{
+ for ( int i = startIndex; i >= 0; --i )
+ if ( ba[i] == c ) return i;
+
+ return -1;
+}
+
+/**
+ * Extract data in ba from start, including no more than len characters from ba.
+ * Should be exactly comparable to TQCString::mid()
+ */
+static TQCString extractQCString( const TQByteArray &ba, uint start, uint len = 0xffffffff )
+{
+ uint realLen = len;
+
+ if ( ( ba.size() - start ) < len )
+ realLen = ba.size() - start;
+
+// return TQCString( &ba[ start ], realLen + 1 );
+ return TQCString( ba ).mid(start, realLen + 1);
+}
+
+/**
+ * Search through a TQByteArray for a given string. The position of the string
+ * is returned, or -1 if it was not found.
+ */
+static int qByteArrayFindStr( const TQByteArray &ba, const char *str )
+{
+ int strLen = tqstrlen( str );
+ int searchLen = ba.size() - strLen;
+
+ for ( int i = 0; i <= searchLen; ++i ) {
+ TQCString temp = extractQCString( ba, i, strLen );
+ if ( temp == str )
+ return i;
+ }
+
+ return -1;
+}
+
+void CgiProtocol::get( const KURL& url )
+{
+ kdDebug(7124) << "CgiProtocol::get()" << endl;
+ kdDebug(7124) << " URL: " << url.url() << endl;
+#if 0
+ kdDebug(7124) << " Path: " << url.path() << endl;
+ kdDebug(7124) << " Query: " << url.query() << endl;
+ kdDebug(7124) << " Protocol: " << url.protocol() << endl;
+ kdDebug(7124) << " Filename: " << url.filename() << endl;
+#endif
+ TQCString protocol = "SERVER_PROTOCOL=HTTP";
+ putenv( protocol.data() );
+
+ TQCString requestMethod = "REQUEST_METHOD=GET";
+ putenv( requestMethod.data() );
+
+ TQCString query = url.query().mid( 1 ).local8Bit();
+ query.prepend( "QUERY_STRING=" );
+ putenv( query.data() );
+
+ TQString path = url.path();
+
+ TQString file;
+
+ int pos = path.findRev('/');
+ if ( pos >= 0 ) file = path.mid( pos + 1 );
+ else file = path;
+
+ TQString cmd;
+
+ bool stripHeader = false;
+ bool forwardFile = true;
+
+ TQStringList::ConstIterator it;
+ for( it = mCgiPaths.begin(); it != mCgiPaths.end(); ++it ) {
+ cmd = *it;
+ if ( !(*it).endsWith("/") )
+ cmd += "/";
+ cmd += file;
+ if ( KStandardDirs::exists( cmd ) ) {
+ forwardFile = false;
+ stripHeader = true;
+ break;
+ }
+ }
+
+ FILE *fd;
+
+ if ( forwardFile ) {
+ kdDebug(7124) << "Forwarding to '" << path << "'" << endl;
+
+ TQCString filepath = TQFile::encodeName( path );
+
+ fd = fopen( filepath.data(), "r" );
+
+ if ( !fd ) {
+ kdDebug(7124) << "Error opening '" << filepath << "'" << endl;
+ error( TDEIO::ERR_CANNOT_OPEN_FOR_READING, filepath );
+ return;
+ }
+ } else {
+ kdDebug(7124) << "Cmd: " << cmd << endl;
+
+ fd = popen( TQFile::encodeName(TDEProcess::quote( cmd )).data(), "r" );
+
+ if ( !fd ) {
+ kdDebug(7124) << "Error running '" << cmd << "'" << endl;
+ error( TDEIO::ERR_CANNOT_OPEN_FOR_READING, cmd );
+ return;
+ }
+ }
+
+ char buffer[ 4090 ];
+
+ while ( !feof( fd ) )
+ {
+ int n = fread( buffer, 1, 2048, fd );
+
+ if ( n == -1 )
+ {
+ // ERROR
+ if ( forwardFile ) {
+ fclose( fd );
+ } else {
+ pclose( fd );
+ }
+ return;
+ }
+
+ buffer[n] = 0;
+
+ if ( stripHeader ) {
+ TQByteArray output;
+
+ // Access the buffer in-place by using setRawData()
+ output.setRawData( buffer, n );
+
+ int colon = output.find( ':' );
+ int newline = output.find( '\n' );
+ int semicolon = qByteArrayFindRev( output, ';', newline );
+ int end;
+ if ( semicolon < 0 ) end = newline;
+ else end = semicolon;
+
+#if 0
+ kdDebug(7124) << " colon: " << colon << endl;
+ kdDebug(7124) << " newline: " << newline << endl;
+ kdDebug(7124) << " semicolon: " << semicolon << endl;
+ kdDebug(7124) << " end: " << end << endl;
+#endif
+
+ TQCString contentType = extractQCString( output, colon + 1, end - colon - 1 );
+
+ contentType = contentType.stripWhiteSpace();
+
+ kdDebug(7124) << "ContentType: '" << contentType << "'" << endl;
+
+ mimeType( contentType );
+
+ int start = qByteArrayFindStr( output, "\r\n\r\n" );
+ if ( start >= 0 ) start += 4;
+ else {
+ start = qByteArrayFindStr( output, "\n\n" );
+ if ( start >= 0 ) start += 2;
+ }
+
+ if ( start < 0 )
+ start = 0;
+
+ // We're done with the part of the buffer we're using.
+ output.resetRawData ( buffer, n );
+
+ // Now access the part of the buffer after the header.
+ output.setRawData ( buffer + start, n - start );
+ data( output );
+ output.resetRawData ( buffer + start, n - start );
+
+ stripHeader = false;
+ } else {
+ TQByteArray array;
+ array.setRawData( buffer, n );
+ data( array );
+ array.resetRawData( buffer, n );
+ }
+ }
+
+ if ( forwardFile ) {
+ fclose( fd );
+ } else {
+ pclose( fd );
+ }
+
+ finished();
+
+ kdDebug(7124) << "CgiProtocol::get - done" << endl;
+}
+
+extern "C" { int KDE_EXPORT kdemain( int argc, char **argv ); }
+
+/*! The kdemain function generates an instance of the ioslave and starts its
+ * dispatch loop. */
+
+int kdemain( int argc, char **argv )
+{
+ TDEInstance instance( "kio_cgi" );
+
+ kdDebug(7124) << "kio_cgi starting " << getpid() << endl;
+
+ if (argc != 4)
+ {
+ fprintf(stderr, "Usage: kio_cgi protocol domain-socket1 domain-socket2\n");
+ exit(-1);
+ }
+
+ CgiProtocol slave( argv[2], argv[3] );
+ slave.dispatchLoop();
+
+ return 0;
+}