2008-07-16 16:35:59 +08:00
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//
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2008-07-25 17:08:15 +08:00
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// ZoneMinder Remote Camera Class Implementation, $Date$, $Revision$
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2008-07-25 17:33:23 +08:00
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// Copyright (C) 2001-2008 Philip Coombes
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2008-07-16 16:35:59 +08:00
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program 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
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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#include "zm_remote_camera_http.h"
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#include "zm_mem_utils.h"
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#include <sys/types.h>
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#include <sys/socket.h>
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2009-03-20 20:39:29 +08:00
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#include <errno.h>
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2013-10-11 14:31:37 +08:00
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#include <netdb.h>
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2008-07-16 16:35:59 +08:00
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2008-07-21 23:20:52 +08:00
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RemoteCameraHttp::RemoteCameraHttp( int p_id, const std::string &p_method, const std::string &p_host, const std::string &p_port, const std::string &p_path, int p_width, int p_height, int p_colours, int p_brightness, int p_contrast, int p_hue, int p_colour, bool p_capture ) :
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2009-05-28 16:47:59 +08:00
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RemoteCamera( p_id, "http", p_host, p_port, p_path, p_width, p_height, p_colours, p_brightness, p_contrast, p_hue, p_colour, p_capture )
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2008-07-16 16:35:59 +08:00
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{
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2011-07-28 00:08:48 +08:00
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sd = -1;
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2008-07-16 16:35:59 +08:00
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2011-07-28 00:08:48 +08:00
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timeout.tv_sec = 0;
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timeout.tv_usec = 0;
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2008-07-16 16:35:59 +08:00
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if ( p_method == "simple" )
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method = SIMPLE;
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else if ( p_method == "regexp" )
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method = REGEXP;
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else
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Fatal( "Unrecognised method '%s' when creating HTTP camera %d", p_method.c_str(), id );
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2011-07-28 00:08:48 +08:00
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if ( capture )
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{
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Initialise();
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}
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2008-07-16 16:35:59 +08:00
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}
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RemoteCameraHttp::~RemoteCameraHttp()
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{
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2011-07-28 00:08:48 +08:00
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if ( capture )
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{
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Terminate();
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}
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2008-07-16 16:35:59 +08:00
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}
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void RemoteCameraHttp::Initialise()
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{
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RemoteCamera::Initialise();
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2011-07-28 00:08:48 +08:00
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if ( request.empty() )
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{
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request = stringtf( "GET %s HTTP/%s\r\n", path.c_str(), config.http_version );
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request += stringtf( "User-Agent: %s/%s\r\n", config.http_ua, ZM_VERSION );
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2014-11-20 23:44:31 +08:00
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request += stringtf( "Host: %s\r\n", host.c_str());
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2009-11-24 19:40:04 +08:00
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if ( strcmp( config.http_version, "1.0" ) == 0 )
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2011-07-28 00:08:48 +08:00
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request += stringtf( "Connection: Keep-Alive\r\n" );
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if ( !auth.empty() )
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request += stringtf( "Authorization: Basic %s\r\n", auth64.c_str() );
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request += "\r\n";
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Debug( 2, "Request: %s", request.c_str() );
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}
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if ( !timeout.tv_sec )
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{
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timeout.tv_sec = config.http_timeout/1000;
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timeout.tv_usec = (config.http_timeout%1000)*1000;
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}
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int max_size = width*height*colours;
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buffer.size( max_size );
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mode = SINGLE_IMAGE;
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format = UNDEF;
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state = HEADER;
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2008-07-16 16:35:59 +08:00
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}
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int RemoteCameraHttp::Connect()
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{
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2013-11-22 21:30:05 +08:00
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struct addrinfo *p;
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for(p = hp; p != NULL; p = p->ai_next)
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2011-07-28 00:08:48 +08:00
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{
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2013-11-22 21:30:05 +08:00
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sd = socket( p->ai_family, p->ai_socktype, p->ai_protocol );
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2011-07-28 00:08:48 +08:00
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if ( sd < 0 )
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{
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2013-11-22 21:30:05 +08:00
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Warning("Can't create socket: %s", strerror(errno) );
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continue;
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2011-07-28 00:08:48 +08:00
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}
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2013-11-22 21:30:05 +08:00
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if ( connect( sd, p->ai_addr, p->ai_addrlen ) < 0 )
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2011-07-28 00:08:48 +08:00
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{
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2013-11-22 21:30:05 +08:00
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close(sd);
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sd = -1;
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Warning("Can't connect to remote camera: %s", strerror(errno) );
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continue;
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2011-07-28 00:08:48 +08:00
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}
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2013-11-22 21:30:05 +08:00
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/* If we got here, we must have connected successfully */
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break;
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2011-07-28 00:08:48 +08:00
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}
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2013-11-22 21:30:05 +08:00
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if(p == NULL) {
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Error("Unable to connect to the remote camera, aborting");
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return( -1 );
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}
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2011-07-28 00:08:48 +08:00
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Debug( 3, "Connected to host, socket = %d", sd );
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return( sd );
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2008-07-16 16:35:59 +08:00
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}
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int RemoteCameraHttp::Disconnect()
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{
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2011-07-28 00:08:48 +08:00
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close( sd );
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sd = -1;
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2010-03-01 03:16:40 +08:00
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Debug( 3, "Disconnected from host" );
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2011-07-28 00:08:48 +08:00
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return( 0 );
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2008-07-16 16:35:59 +08:00
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}
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int RemoteCameraHttp::SendRequest()
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{
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2014-11-20 05:40:05 +08:00
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Debug( 2, "Sending request: %s", request.c_str() );
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2011-07-28 00:08:48 +08:00
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if ( write( sd, request.data(), request.length() ) < 0 )
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{
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Error( "Can't write: %s", strerror(errno) );
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Disconnect();
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return( -1 );
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}
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format = UNDEF;
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state = HEADER;
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Debug( 3, "Request sent" );
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return( 0 );
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2008-07-16 16:35:59 +08:00
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}
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int RemoteCameraHttp::ReadData( Buffer &buffer, int bytes_expected )
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{
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2011-07-28 00:08:48 +08:00
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fd_set rfds;
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FD_ZERO(&rfds);
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FD_SET(sd, &rfds);
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struct timeval temp_timeout = timeout;
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int n_found = select( sd+1, &rfds, NULL, NULL, &temp_timeout );
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if( n_found == 0 )
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{
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Warning( "Select timed out" );
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Disconnect();
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return( 0 );
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}
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else if ( n_found < 0)
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{
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Error( "Select error: %s", strerror(errno) );
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return( -1 );
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}
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int total_bytes_to_read = 0;
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if ( bytes_expected )
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{
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total_bytes_to_read = bytes_expected;
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}
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else
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{
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if ( ioctl( sd, FIONREAD, &total_bytes_to_read ) < 0 )
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{
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Error( "Can't ioctl(): %s", strerror(errno) );
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return( -1 );
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}
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if ( total_bytes_to_read == 0 )
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{
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Debug( 3, "Socket closed" );
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Disconnect();
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return( 0 );
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}
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}
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Debug( 3, "Expecting %d bytes", total_bytes_to_read );
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int total_bytes_read = 0;
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do
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{
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static unsigned char temp_buffer[ZM_NETWORK_BUFSIZ];
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2013-03-17 07:45:21 +08:00
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int bytes_to_read = (unsigned int)total_bytes_to_read>(unsigned int)sizeof(temp_buffer)?sizeof(temp_buffer):total_bytes_to_read;
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2011-07-28 00:08:48 +08:00
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int bytes_read = read( sd, temp_buffer, bytes_to_read );
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if ( bytes_read < 0)
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{
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Error( "Read error: %s", strerror(errno) );
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return( -1 );
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}
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else if ( bytes_read == 0)
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{
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Debug( 3, "Socket closed" );
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Disconnect();
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return( 0 );
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}
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else if ( bytes_read < bytes_to_read )
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{
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Error( "Incomplete read, expected %d, got %d", bytes_to_read, bytes_read );
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return( -1 );
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}
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Debug( 3, "Read %d bytes", bytes_read );
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buffer.append( temp_buffer, bytes_read );
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total_bytes_read += bytes_read;
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total_bytes_to_read -= bytes_read;
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}
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while ( total_bytes_to_read );
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2014-11-29 04:56:13 +08:00
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Debug( 3, buffer );
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2011-07-28 00:08:48 +08:00
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return( total_bytes_read );
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2008-07-16 16:35:59 +08:00
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}
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int RemoteCameraHttp::GetResponse()
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{
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#if HAVE_LIBPCRE
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2011-07-28 00:08:48 +08:00
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if ( method == REGEXP )
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{
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const char *header = 0;
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int header_len = 0;
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const char *http_version = 0;
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int status_code = 0;
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const char *status_mesg = 0;
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const char *connection_type = "";
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int content_length = 0;
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const char *content_type = "";
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const char *content_boundary = "";
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const char *subheader = 0;
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int subheader_len = 0;
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//int subcontent_length = 0;
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//const char *subcontent_type = "";
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while ( true )
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{
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switch( state )
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{
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case HEADER :
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{
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static RegExpr *header_expr = 0;
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static RegExpr *status_expr = 0;
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static RegExpr *connection_expr = 0;
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static RegExpr *content_length_expr = 0;
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static RegExpr *content_type_expr = 0;
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int buffer_len = ReadData( buffer );
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if ( buffer_len == 0 )
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2010-03-01 03:16:40 +08:00
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{
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Error( "Connection dropped by remote end" );
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return( 0 );
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}
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2011-07-28 00:08:48 +08:00
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else if ( buffer_len < 0 )
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{
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2008-07-16 16:35:59 +08:00
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Error( "Unable to read header data" );
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2011-07-28 00:08:48 +08:00
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return( -1 );
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}
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if ( !header_expr )
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header_expr = new RegExpr( "^(.+?\r?\n\r?\n)", PCRE_DOTALL );
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if ( header_expr->Match( (char*)buffer, buffer.size() ) == 2 )
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{
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header = header_expr->MatchString( 1 );
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header_len = header_expr->MatchLength( 1 );
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Debug( 4, "Captured header (%d bytes):\n'%s'", header_len, header );
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if ( !status_expr )
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status_expr = new RegExpr( "^HTTP/(1\\.[01]) +([0-9]+) +(.+?)\r?\n", PCRE_CASELESS );
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if ( status_expr->Match( header, header_len ) < 4 )
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{
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Error( "Unable to extract HTTP status from header" );
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return( -1 );
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}
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http_version = status_expr->MatchString( 1 );
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status_code = atoi( status_expr->MatchString( 2 ) );
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status_mesg = status_expr->MatchString( 3 );
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2014-11-20 05:40:05 +08:00
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if ( status_code == 401 ) {
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if ( mNeedAuth ) {
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Error( "Failed authentication: " );
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return( -1 );
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}
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mNeedAuth = true;
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std::string Header = header;
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mAuthenticator->checkAuthResponse(Header);
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if ( mAuthenticator->auth_method() == AUTH_DIGEST ) {
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Debug( 2, "Need Digest Authentication" );
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request = stringtf( "GET %s HTTP/%s\r\n", path.c_str(), config.http_version );
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request += stringtf( "User-Agent: %s/%s\r\n", config.http_ua, ZM_VERSION );
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request += stringtf( "Host: %s\r\n", host.c_str());
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if ( strcmp( config.http_version, "1.0" ) == 0 )
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request += stringtf( "Connection: Keep-Alive\r\n" );
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request += mAuthenticator->getAuthHeader( "GET", path.c_str() );
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request += "\r\n";
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|
|
|
|
|
|
|
|
Debug( 2, "New request header: %s", request.c_str() );
|
|
|
|
|
return( 0 );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
} else if ( status_code < 200 || status_code > 299 ) {
|
|
|
|
|
Error( "Invalid response status %d: %s\n%s", status_code, status_mesg, (char *)buffer );
|
2011-07-28 00:08:48 +08:00
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
Debug( 3, "Got status '%d' (%s), http version %s", status_code, status_mesg, http_version );
|
|
|
|
|
|
|
|
|
|
if ( !connection_expr )
|
|
|
|
|
connection_expr = new RegExpr( "Connection: ?(.+?)\r?\n", PCRE_CASELESS );
|
|
|
|
|
if ( connection_expr->Match( header, header_len ) == 2 )
|
|
|
|
|
{
|
|
|
|
|
connection_type = connection_expr->MatchString( 1 );
|
|
|
|
|
Debug( 3, "Got connection '%s'", connection_type );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !content_length_expr )
|
|
|
|
|
content_length_expr = new RegExpr( "Content-length: ?([0-9]+)\r?\n", PCRE_CASELESS );
|
|
|
|
|
if ( content_length_expr->Match( header, header_len ) == 2 )
|
|
|
|
|
{
|
|
|
|
|
content_length = atoi( content_length_expr->MatchString( 1 ) );
|
|
|
|
|
Debug( 3, "Got content length '%d'", content_length );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !content_type_expr )
|
|
|
|
|
content_type_expr = new RegExpr( "Content-type: ?(.+?)(?:; ?boundary=(.+?))?\r?\n", PCRE_CASELESS );
|
|
|
|
|
if ( content_type_expr->Match( header, header_len ) >= 2 )
|
|
|
|
|
{
|
|
|
|
|
content_type = content_type_expr->MatchString( 1 );
|
|
|
|
|
Debug( 3, "Got content type '%s'\n", content_type );
|
|
|
|
|
if ( content_type_expr->MatchCount() > 2 )
|
|
|
|
|
{
|
|
|
|
|
content_boundary = content_type_expr->MatchString( 2 );
|
|
|
|
|
Debug( 3, "Got content boundary '%s'", content_boundary );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !strcasecmp( content_type, "image/jpeg" ) || !strcasecmp( content_type, "image/jpg" ) )
|
|
|
|
|
{
|
|
|
|
|
// Single image
|
|
|
|
|
mode = SINGLE_IMAGE;
|
|
|
|
|
format = JPEG;
|
|
|
|
|
state = CONTENT;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "image/x-rgb" ) )
|
|
|
|
|
{
|
|
|
|
|
// Single image
|
|
|
|
|
mode = SINGLE_IMAGE;
|
|
|
|
|
format = X_RGB;
|
|
|
|
|
state = CONTENT;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "image/x-rgbz" ) )
|
|
|
|
|
{
|
|
|
|
|
// Single image
|
|
|
|
|
mode = SINGLE_IMAGE;
|
|
|
|
|
format = X_RGBZ;
|
|
|
|
|
state = CONTENT;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "multipart/x-mixed-replace" ) )
|
|
|
|
|
{
|
|
|
|
|
// Image stream, so start processing
|
|
|
|
|
if ( !content_boundary[0] )
|
|
|
|
|
{
|
|
|
|
|
Error( "No content boundary found in header '%s'", header );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
mode = MULTI_IMAGE;
|
|
|
|
|
state = SUBHEADER;
|
|
|
|
|
}
|
|
|
|
|
//else if ( !strcasecmp( content_type, "video/mpeg" ) || !strcasecmp( content_type, "video/mpg" ) )
|
|
|
|
|
//{
|
|
|
|
|
//// MPEG stream, coming soon!
|
|
|
|
|
//}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Error( "Unrecognised content type '%s'", content_type );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
buffer.consume( header_len );
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Debug( 3, "Unable to extract header from stream, retrying" );
|
|
|
|
|
//return( -1 );
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case SUBHEADER :
|
|
|
|
|
{
|
|
|
|
|
static RegExpr *subheader_expr = 0;
|
|
|
|
|
static RegExpr *subcontent_length_expr = 0;
|
|
|
|
|
static RegExpr *subcontent_type_expr = 0;
|
|
|
|
|
|
|
|
|
|
if ( !subheader_expr )
|
|
|
|
|
{
|
|
|
|
|
char subheader_pattern[256] = "";
|
|
|
|
|
snprintf( subheader_pattern, sizeof(subheader_pattern), "^((?:\r?\n){0,2}?(?:--)?%s\r?\n.+?\r?\n\r?\n)", content_boundary );
|
|
|
|
|
subheader_expr = new RegExpr( subheader_pattern, PCRE_DOTALL );
|
|
|
|
|
}
|
|
|
|
|
if ( subheader_expr->Match( (char *)buffer, (int)buffer ) == 2 )
|
|
|
|
|
{
|
|
|
|
|
subheader = subheader_expr->MatchString( 1 );
|
|
|
|
|
subheader_len = subheader_expr->MatchLength( 1 );
|
|
|
|
|
Debug( 4, "Captured subheader (%d bytes):'%s'", subheader_len, subheader );
|
|
|
|
|
|
|
|
|
|
if ( !subcontent_length_expr )
|
|
|
|
|
subcontent_length_expr = new RegExpr( "Content-length: ?([0-9]+)\r?\n", PCRE_CASELESS );
|
|
|
|
|
if ( subcontent_length_expr->Match( subheader, subheader_len ) == 2 )
|
|
|
|
|
{
|
|
|
|
|
content_length = atoi( subcontent_length_expr->MatchString( 1 ) );
|
|
|
|
|
Debug( 3, "Got subcontent length '%d'", content_length );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !subcontent_type_expr )
|
|
|
|
|
subcontent_type_expr = new RegExpr( "Content-type: ?(.+?)\r?\n", PCRE_CASELESS );
|
|
|
|
|
if ( subcontent_type_expr->Match( subheader, subheader_len ) == 2 )
|
|
|
|
|
{
|
|
|
|
|
content_type = subcontent_type_expr->MatchString( 1 );
|
|
|
|
|
Debug( 3, "Got subcontent type '%s'", content_type );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
buffer.consume( subheader_len );
|
|
|
|
|
state = CONTENT;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Debug( 3, "Unable to extract subheader from stream, retrying" );
|
|
|
|
|
int buffer_len = ReadData( buffer );
|
|
|
|
|
if ( buffer_len == 0 )
|
2010-03-01 03:16:40 +08:00
|
|
|
{
|
|
|
|
|
Error( "Connection dropped by remote end" );
|
|
|
|
|
return( 0 );
|
|
|
|
|
}
|
2011-07-28 00:08:48 +08:00
|
|
|
else if ( buffer_len < 0 )
|
|
|
|
|
{
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case CONTENT :
|
|
|
|
|
{
|
|
|
|
|
if ( !strcasecmp( content_type, "image/jpeg" ) || !strcasecmp( content_type, "image/jpg" ) )
|
|
|
|
|
{
|
|
|
|
|
format = JPEG;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "image/x-rgb" ) )
|
|
|
|
|
{
|
|
|
|
|
format = X_RGB;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "image/x-rgbz" ) )
|
|
|
|
|
{
|
|
|
|
|
format = X_RGBZ;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Error( "Found unsupported content type '%s'", content_type );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( content_length )
|
|
|
|
|
{
|
2013-11-24 21:37:47 +08:00
|
|
|
while ( (long)buffer.size() < content_length )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
|
|
|
|
int buffer_len = ReadData( buffer );
|
|
|
|
|
if ( buffer_len == 0 )
|
2010-03-01 03:16:40 +08:00
|
|
|
{
|
|
|
|
|
Error( "Connection dropped by remote end" );
|
|
|
|
|
return( 0 );
|
|
|
|
|
}
|
2011-07-28 00:08:48 +08:00
|
|
|
else if ( buffer_len < 0 )
|
|
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to read content" );
|
2011-07-28 00:08:48 +08:00
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
Debug( 3, "Got end of image by length, content-length = %d", content_length );
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
while ( !content_length )
|
|
|
|
|
{
|
|
|
|
|
int buffer_len = ReadData( buffer );
|
|
|
|
|
if ( buffer_len == 0 )
|
2010-03-01 03:16:40 +08:00
|
|
|
{
|
2011-07-28 00:08:48 +08:00
|
|
|
if ( mode == MULTI_IMAGE )
|
|
|
|
|
{
|
|
|
|
|
Error( "Connection dropped by remote end" );
|
|
|
|
|
return( 0 );
|
|
|
|
|
}
|
2010-03-01 03:16:40 +08:00
|
|
|
}
|
2011-07-28 00:08:48 +08:00
|
|
|
else if ( buffer_len < 0 )
|
|
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to read content" );
|
2011-07-28 00:08:48 +08:00
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
static RegExpr *content_expr = 0;
|
|
|
|
|
if ( buffer_len )
|
|
|
|
|
{
|
|
|
|
|
if ( mode == MULTI_IMAGE )
|
|
|
|
|
{
|
|
|
|
|
if ( !content_expr )
|
|
|
|
|
{
|
|
|
|
|
char content_pattern[256] = "";
|
|
|
|
|
snprintf( content_pattern, sizeof(content_pattern), "^(.+?)(?:\r?\n)*(?:--)?%s\r?\n", content_boundary );
|
|
|
|
|
content_expr = new RegExpr( content_pattern, PCRE_DOTALL );
|
|
|
|
|
}
|
|
|
|
|
if ( content_expr->Match( buffer, buffer.size() ) == 2 )
|
|
|
|
|
{
|
|
|
|
|
content_length = content_expr->MatchLength( 1 );
|
|
|
|
|
Debug( 3, "Got end of image by pattern, content-length = %d", content_length );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
content_length = buffer.size();
|
|
|
|
|
Debug( 3, "Got end of image by closure, content-length = %d", content_length );
|
|
|
|
|
if ( mode == SINGLE_IMAGE )
|
|
|
|
|
{
|
|
|
|
|
if ( !content_expr )
|
|
|
|
|
{
|
|
|
|
|
content_expr = new RegExpr( "^(.+?)(?:\r?\n){1,2}?$", PCRE_DOTALL );
|
|
|
|
|
}
|
|
|
|
|
if ( content_expr->Match( buffer, buffer.size() ) == 2 )
|
|
|
|
|
{
|
|
|
|
|
content_length = content_expr->MatchLength( 1 );
|
|
|
|
|
Debug( 3, "Trimmed end of image, new content-length = %d", content_length );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if ( mode == SINGLE_IMAGE )
|
|
|
|
|
{
|
|
|
|
|
state = HEADER;
|
|
|
|
|
Disconnect();
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
state = SUBHEADER;
|
|
|
|
|
}
|
|
|
|
|
Debug( 3, "Returning %d (%d) bytes of captured content", content_length, buffer.size() );
|
|
|
|
|
return( content_length );
|
|
|
|
|
}
|
2008-07-16 16:35:59 +08:00
|
|
|
case HEADERCONT :
|
|
|
|
|
case SUBHEADERCONT :
|
|
|
|
|
{
|
|
|
|
|
// Ignore
|
|
|
|
|
break;
|
|
|
|
|
}
|
2011-07-28 00:08:48 +08:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
2008-07-16 16:35:59 +08:00
|
|
|
#endif // HAVE_LIBPCRE
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
|
|
|
|
if ( method == REGEXP )
|
|
|
|
|
{
|
|
|
|
|
Warning( "Unable to use netcam regexps as not compiled with libpcre" );
|
|
|
|
|
}
|
|
|
|
|
static const char *http_match = "HTTP/";
|
|
|
|
|
static const char *connection_match = "Connection:";
|
|
|
|
|
static const char *content_length_match = "Content-length:";
|
|
|
|
|
static const char *content_type_match = "Content-type:";
|
|
|
|
|
static const char *boundary_match = "boundary=";
|
2014-11-29 04:56:13 +08:00
|
|
|
static const char *authenticate_match = "WWW-Authenticate:";
|
2011-07-28 00:08:48 +08:00
|
|
|
static int http_match_len = 0;
|
|
|
|
|
static int connection_match_len = 0;
|
|
|
|
|
static int content_length_match_len = 0;
|
|
|
|
|
static int content_type_match_len = 0;
|
|
|
|
|
static int boundary_match_len = 0;
|
2014-11-29 04:56:13 +08:00
|
|
|
static int authenticate_match_len = 0;
|
2011-07-28 00:08:48 +08:00
|
|
|
|
|
|
|
|
if ( !http_match_len )
|
|
|
|
|
http_match_len = strlen( http_match );
|
|
|
|
|
if ( !connection_match_len )
|
|
|
|
|
connection_match_len = strlen( connection_match );
|
|
|
|
|
if ( !content_length_match_len )
|
|
|
|
|
content_length_match_len = strlen( content_length_match );
|
|
|
|
|
if ( !content_type_match_len )
|
|
|
|
|
content_type_match_len = strlen( content_type_match );
|
|
|
|
|
if ( !boundary_match_len )
|
|
|
|
|
boundary_match_len = strlen( boundary_match );
|
2014-11-29 04:56:13 +08:00
|
|
|
if ( !authenticate_match_len )
|
|
|
|
|
authenticate_match_len = strlen( authenticate_match );
|
2011-07-28 00:08:48 +08:00
|
|
|
|
|
|
|
|
static int n_headers;
|
2013-03-17 07:45:21 +08:00
|
|
|
//static char *headers[32];
|
2011-07-28 00:08:48 +08:00
|
|
|
|
|
|
|
|
static int n_subheaders;
|
2013-03-17 07:45:21 +08:00
|
|
|
//static char *subheaders[32];
|
2011-07-28 00:08:48 +08:00
|
|
|
|
|
|
|
|
static char *http_header;
|
|
|
|
|
static char *connection_header;
|
|
|
|
|
static char *content_length_header;
|
|
|
|
|
static char *content_type_header;
|
|
|
|
|
static char *boundary_header;
|
2014-11-29 04:56:13 +08:00
|
|
|
static char *authenticate_header;
|
2011-07-28 00:08:48 +08:00
|
|
|
static char subcontent_length_header[32];
|
|
|
|
|
static char subcontent_type_header[64];
|
|
|
|
|
|
|
|
|
|
static char http_version[16];
|
|
|
|
|
static char status_code[16];
|
|
|
|
|
static char status_mesg[256];
|
|
|
|
|
static char connection_type[32];
|
|
|
|
|
static int content_length;
|
|
|
|
|
static char content_type[32];
|
|
|
|
|
static char content_boundary[64];
|
|
|
|
|
static int content_boundary_len;
|
|
|
|
|
|
|
|
|
|
while ( true )
|
|
|
|
|
{
|
|
|
|
|
switch( state )
|
|
|
|
|
{
|
|
|
|
|
case HEADER :
|
|
|
|
|
{
|
|
|
|
|
n_headers = 0;
|
|
|
|
|
http_header = 0;
|
|
|
|
|
connection_header = 0;
|
|
|
|
|
content_length_header = 0;
|
|
|
|
|
content_type_header = 0;
|
2014-11-29 04:56:13 +08:00
|
|
|
authenticate_header = 0;
|
2011-07-28 00:08:48 +08:00
|
|
|
|
|
|
|
|
http_version[0] = '\0';
|
|
|
|
|
status_code [0]= '\0';
|
|
|
|
|
status_mesg [0]= '\0';
|
|
|
|
|
connection_type [0]= '\0';
|
|
|
|
|
content_length = 0;
|
|
|
|
|
content_type[0] = '\0';
|
|
|
|
|
content_boundary[0] = '\0';
|
|
|
|
|
content_boundary_len = 0;
|
|
|
|
|
}
|
|
|
|
|
case HEADERCONT :
|
|
|
|
|
{
|
|
|
|
|
int buffer_len = ReadData( buffer );
|
2010-03-01 03:16:40 +08:00
|
|
|
if ( buffer_len == 0 )
|
|
|
|
|
{
|
|
|
|
|
Error( "Connection dropped by remote end" );
|
|
|
|
|
return( 0 );
|
|
|
|
|
}
|
|
|
|
|
else if ( buffer_len < 0 )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to read header" );
|
2011-07-28 00:08:48 +08:00
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
char *crlf = 0;
|
|
|
|
|
char *header_ptr = (char *)buffer;
|
|
|
|
|
int header_len = buffer.size();
|
|
|
|
|
bool all_headers = false;
|
|
|
|
|
|
|
|
|
|
while( true )
|
|
|
|
|
{
|
|
|
|
|
int crlf_len = memspn( header_ptr, "\r\n", header_len );
|
|
|
|
|
if ( n_headers )
|
|
|
|
|
{
|
|
|
|
|
if ( (crlf_len == 2 && !strncmp( header_ptr, "\n\n", crlf_len )) || (crlf_len == 4 && !strncmp( header_ptr, "\r\n\r\n", crlf_len )) )
|
|
|
|
|
{
|
|
|
|
|
*header_ptr = '\0';
|
|
|
|
|
header_ptr += crlf_len;
|
|
|
|
|
header_len -= buffer.consume( header_ptr-(char *)buffer );
|
|
|
|
|
all_headers = true;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if ( crlf_len )
|
|
|
|
|
{
|
|
|
|
|
if ( header_len == crlf_len )
|
|
|
|
|
{
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
*header_ptr = '\0';
|
|
|
|
|
header_ptr += crlf_len;
|
|
|
|
|
header_len -= buffer.consume( header_ptr-(char *)buffer );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
Debug( 6, "%s", header_ptr );
|
|
|
|
|
if ( (crlf = mempbrk( header_ptr, "\r\n", header_len )) )
|
|
|
|
|
{
|
2013-03-17 07:45:21 +08:00
|
|
|
//headers[n_headers++] = header_ptr;
|
|
|
|
|
n_headers++;
|
2011-07-28 00:08:48 +08:00
|
|
|
|
|
|
|
|
if ( !http_header && (strncasecmp( header_ptr, http_match, http_match_len ) == 0) )
|
|
|
|
|
{
|
|
|
|
|
http_header = header_ptr+http_match_len;
|
|
|
|
|
Debug( 6, "Got http header '%s'", header_ptr );
|
|
|
|
|
}
|
|
|
|
|
else if ( !connection_header && (strncasecmp( header_ptr, connection_match, connection_match_len) == 0) )
|
|
|
|
|
{
|
|
|
|
|
connection_header = header_ptr+connection_match_len;
|
|
|
|
|
Debug( 6, "Got connection header '%s'", header_ptr );
|
|
|
|
|
}
|
|
|
|
|
else if ( !content_length_header && (strncasecmp( header_ptr, content_length_match, content_length_match_len) == 0) )
|
|
|
|
|
{
|
|
|
|
|
content_length_header = header_ptr+content_length_match_len;
|
|
|
|
|
Debug( 6, "Got content length header '%s'", header_ptr );
|
|
|
|
|
}
|
2014-11-29 04:56:13 +08:00
|
|
|
|
|
|
|
|
else if ( !authenticate_header && (strncasecmp( header_ptr, authenticate_match, authenticate_match_len) == 0) )
|
|
|
|
|
{
|
|
|
|
|
authenticate_header = header_ptr;
|
|
|
|
|
Debug( 6, "Got authenticate header '%s'", header_ptr );
|
|
|
|
|
}
|
2011-07-28 00:08:48 +08:00
|
|
|
else if ( !content_type_header && (strncasecmp( header_ptr, content_type_match, content_type_match_len) == 0) )
|
|
|
|
|
{
|
|
|
|
|
content_type_header = header_ptr+content_type_match_len;
|
|
|
|
|
Debug( 6, "Got content type header '%s'", header_ptr );
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Debug( 6, "Got ignored header '%s'", header_ptr );
|
|
|
|
|
}
|
|
|
|
|
header_ptr = crlf;
|
|
|
|
|
header_len -= buffer.consume( header_ptr-(char *)buffer );
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
// No end of line found
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( all_headers )
|
|
|
|
|
{
|
|
|
|
|
char *start_ptr, *end_ptr;
|
|
|
|
|
|
|
|
|
|
if ( !http_header )
|
|
|
|
|
{
|
|
|
|
|
Error( "Unable to extract HTTP status from header" );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
start_ptr = http_header;
|
|
|
|
|
end_ptr = start_ptr+strspn( start_ptr, "10." );
|
|
|
|
|
|
|
|
|
|
memset( http_version, 0, sizeof(http_version) );
|
|
|
|
|
strncpy( http_version, start_ptr, end_ptr-start_ptr );
|
|
|
|
|
|
|
|
|
|
start_ptr = end_ptr;
|
|
|
|
|
start_ptr += strspn( start_ptr, " " );
|
|
|
|
|
end_ptr = start_ptr+strspn( start_ptr, "0123456789" );
|
|
|
|
|
|
|
|
|
|
memset( status_code, 0, sizeof(status_code) );
|
|
|
|
|
strncpy( status_code, start_ptr, end_ptr-start_ptr );
|
|
|
|
|
int status = atoi( status_code );
|
|
|
|
|
|
|
|
|
|
start_ptr = end_ptr;
|
|
|
|
|
start_ptr += strspn( start_ptr, " " );
|
|
|
|
|
strcpy( status_mesg, start_ptr );
|
|
|
|
|
|
2014-11-29 04:56:13 +08:00
|
|
|
if ( status == 401 ) {
|
|
|
|
|
if ( mNeedAuth ) {
|
|
|
|
|
Error( "Failed authentication: " );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
if ( ! authenticate_header ) {
|
|
|
|
|
Error( "Failed authentication, but don't have an authentication header: " );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
mNeedAuth = true;
|
|
|
|
|
std::string Header = authenticate_header;
|
|
|
|
|
Debug(2, "Checking for digest auth in %s", authenticate_header );
|
|
|
|
|
|
|
|
|
|
mAuthenticator->checkAuthResponse(Header);
|
|
|
|
|
if ( mAuthenticator->auth_method() == AUTH_DIGEST ) {
|
|
|
|
|
Debug( 2, "Need Digest Authentication" );
|
|
|
|
|
request = stringtf( "GET %s HTTP/%s\r\n", path.c_str(), config.http_version );
|
|
|
|
|
request += stringtf( "User-Agent: %s/%s\r\n", config.http_ua, ZM_VERSION );
|
|
|
|
|
request += stringtf( "Host: %s\r\n", host.c_str());
|
|
|
|
|
if ( strcmp( config.http_version, "1.0" ) == 0 )
|
|
|
|
|
request += stringtf( "Connection: Keep-Alive\r\n" );
|
|
|
|
|
request += mAuthenticator->getAuthHeader( "GET", path.c_str() );
|
|
|
|
|
request += "\r\n";
|
|
|
|
|
|
|
|
|
|
Debug( 2, "New request header: %s", request.c_str() );
|
|
|
|
|
return( 0 );
|
|
|
|
|
} else {
|
|
|
|
|
Debug( 2, "Need some other kind of Authentication" );
|
|
|
|
|
}
|
|
|
|
|
} else if ( status < 200 || status > 299 )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
|
|
|
|
Error( "Invalid response status %s: %s", status_code, status_mesg );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
Debug( 3, "Got status '%d' (%s), http version %s", status, status_mesg, http_version );
|
|
|
|
|
|
|
|
|
|
if ( connection_header )
|
|
|
|
|
{
|
|
|
|
|
memset( connection_type, 0, sizeof(connection_type) );
|
|
|
|
|
start_ptr = connection_header + strspn( connection_header, " " );
|
|
|
|
|
strcpy( connection_type, start_ptr );
|
|
|
|
|
Debug( 3, "Got connection '%s'", connection_type );
|
|
|
|
|
}
|
|
|
|
|
if ( content_length_header )
|
|
|
|
|
{
|
|
|
|
|
start_ptr = content_length_header + strspn( content_length_header, " " );
|
|
|
|
|
content_length = atoi( start_ptr );
|
|
|
|
|
Debug( 3, "Got content length '%d'", content_length );
|
|
|
|
|
}
|
|
|
|
|
if ( content_type_header )
|
|
|
|
|
{
|
|
|
|
|
memset( content_type, 0, sizeof(content_type) );
|
|
|
|
|
start_ptr = content_type_header + strspn( content_type_header, " " );
|
|
|
|
|
if ( (end_ptr = strchr( start_ptr, ';' )) )
|
|
|
|
|
{
|
|
|
|
|
strncpy( content_type, start_ptr, end_ptr-start_ptr );
|
|
|
|
|
Debug( 3, "Got content type '%s'", content_type );
|
|
|
|
|
|
|
|
|
|
start_ptr = end_ptr + strspn( end_ptr, "; " );
|
|
|
|
|
|
|
|
|
|
if ( strncasecmp( start_ptr, boundary_match, boundary_match_len ) == 0 )
|
|
|
|
|
{
|
|
|
|
|
start_ptr += boundary_match_len;
|
|
|
|
|
start_ptr += strspn( start_ptr, "-" );
|
|
|
|
|
content_boundary_len = sprintf( content_boundary, "--%s", start_ptr );
|
|
|
|
|
Debug( 3, "Got content boundary '%s'", content_boundary );
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Error( "No content boundary found in header '%s'", content_type_header );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
strcpy( content_type, start_ptr );
|
|
|
|
|
Debug( 3, "Got content type '%s'", content_type );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !strcasecmp( content_type, "image/jpeg" ) || !strcasecmp( content_type, "image/jpg" ) )
|
|
|
|
|
{
|
|
|
|
|
// Single image
|
|
|
|
|
mode = SINGLE_IMAGE;
|
|
|
|
|
format = JPEG;
|
|
|
|
|
state = CONTENT;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "image/x-rgb" ) )
|
|
|
|
|
{
|
|
|
|
|
// Single image
|
|
|
|
|
mode = SINGLE_IMAGE;
|
|
|
|
|
format = X_RGB;
|
|
|
|
|
state = CONTENT;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "image/x-rgbz" ) )
|
|
|
|
|
{
|
|
|
|
|
// Single image
|
|
|
|
|
mode = SINGLE_IMAGE;
|
|
|
|
|
format = X_RGBZ;
|
|
|
|
|
state = CONTENT;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "multipart/x-mixed-replace" ) )
|
|
|
|
|
{
|
|
|
|
|
// Image stream, so start processing
|
|
|
|
|
if ( !content_boundary[0] )
|
|
|
|
|
{
|
|
|
|
|
Error( "No content boundary found in header '%s'", content_type_header );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
mode = MULTI_IMAGE;
|
|
|
|
|
state = SUBHEADER;
|
|
|
|
|
}
|
|
|
|
|
//else if ( !strcasecmp( content_type, "video/mpeg" ) || !strcasecmp( content_type, "video/mpg" ) )
|
|
|
|
|
//{
|
|
|
|
|
//// MPEG stream, coming soon!
|
|
|
|
|
//}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Error( "Unrecognised content type '%s'", content_type );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Debug( 3, "Unable to extract entire header from stream, continuing" );
|
|
|
|
|
state = HEADERCONT;
|
|
|
|
|
//return( -1 );
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case SUBHEADER :
|
|
|
|
|
{
|
|
|
|
|
n_subheaders = 0;
|
|
|
|
|
boundary_header = 0;
|
|
|
|
|
subcontent_length_header[0] = '\0';
|
|
|
|
|
subcontent_type_header[0] = '\0';
|
|
|
|
|
content_length = 0;
|
|
|
|
|
content_type[0] = '\0';
|
|
|
|
|
}
|
|
|
|
|
case SUBHEADERCONT :
|
|
|
|
|
{
|
|
|
|
|
char *crlf = 0;
|
|
|
|
|
char *subheader_ptr = (char *)buffer;
|
|
|
|
|
int subheader_len = buffer.size();
|
|
|
|
|
bool all_headers = false;
|
|
|
|
|
|
|
|
|
|
while( true )
|
|
|
|
|
{
|
|
|
|
|
int crlf_len = memspn( subheader_ptr, "\r\n", subheader_len );
|
|
|
|
|
if ( n_subheaders )
|
|
|
|
|
{
|
|
|
|
|
if ( (crlf_len == 2 && !strncmp( subheader_ptr, "\n\n", crlf_len )) || (crlf_len == 4 && !strncmp( subheader_ptr, "\r\n\r\n", crlf_len )) )
|
|
|
|
|
{
|
|
|
|
|
*subheader_ptr = '\0';
|
|
|
|
|
subheader_ptr += crlf_len;
|
|
|
|
|
subheader_len -= buffer.consume( subheader_ptr-(char *)buffer );
|
|
|
|
|
all_headers = true;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if ( crlf_len )
|
|
|
|
|
{
|
|
|
|
|
if ( subheader_len == crlf_len )
|
|
|
|
|
{
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
*subheader_ptr = '\0';
|
|
|
|
|
subheader_ptr += crlf_len;
|
|
|
|
|
subheader_len -= buffer.consume( subheader_ptr-(char *)buffer );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
Debug( 6, "%d: %s", subheader_len, subheader_ptr );
|
|
|
|
|
|
|
|
|
|
if ( (crlf = mempbrk( subheader_ptr, "\r\n", subheader_len )) )
|
|
|
|
|
{
|
2013-03-17 07:45:21 +08:00
|
|
|
//subheaders[n_subheaders++] = subheader_ptr;
|
|
|
|
|
n_subheaders++;
|
2011-07-28 00:08:48 +08:00
|
|
|
|
|
|
|
|
if ( !boundary_header && (strncasecmp( subheader_ptr, content_boundary, content_boundary_len ) == 0) )
|
|
|
|
|
{
|
|
|
|
|
boundary_header = subheader_ptr;
|
|
|
|
|
Debug( 4, "Got boundary subheader '%s'", subheader_ptr );
|
|
|
|
|
}
|
|
|
|
|
else if ( !subcontent_length_header[0] && (strncasecmp( subheader_ptr, content_length_match, content_length_match_len) == 0) )
|
|
|
|
|
{
|
|
|
|
|
strncpy( subcontent_length_header, subheader_ptr+content_length_match_len, sizeof(subcontent_length_header) );
|
|
|
|
|
*(subcontent_length_header+strcspn( subcontent_length_header, "\r\n" )) = '\0';
|
|
|
|
|
Debug( 4, "Got content length subheader '%s'", subcontent_length_header );
|
|
|
|
|
}
|
|
|
|
|
else if ( !subcontent_type_header[0] && (strncasecmp( subheader_ptr, content_type_match, content_type_match_len) == 0) )
|
|
|
|
|
{
|
|
|
|
|
strncpy( subcontent_type_header, subheader_ptr+content_type_match_len, sizeof(subcontent_type_header) );
|
|
|
|
|
*(subcontent_type_header+strcspn( subcontent_type_header, "\r\n" )) = '\0';
|
|
|
|
|
Debug( 4, "Got content type subheader '%s'", subcontent_type_header );
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Debug( 6, "Got ignored subheader '%s' found", subheader_ptr );
|
|
|
|
|
}
|
|
|
|
|
subheader_ptr = crlf;
|
|
|
|
|
subheader_len -= buffer.consume( subheader_ptr-(char *)buffer );
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
// No line end found
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( all_headers && boundary_header )
|
|
|
|
|
{
|
|
|
|
|
char *start_ptr/*, *end_ptr*/;
|
|
|
|
|
|
|
|
|
|
Debug( 3, "Got boundary '%s'", boundary_header );
|
|
|
|
|
|
|
|
|
|
if ( subcontent_length_header[0] )
|
|
|
|
|
{
|
|
|
|
|
start_ptr = subcontent_length_header + strspn( subcontent_length_header, " " );
|
|
|
|
|
content_length = atoi( start_ptr );
|
|
|
|
|
Debug( 3, "Got subcontent length '%d'", content_length );
|
|
|
|
|
}
|
|
|
|
|
if ( subcontent_type_header[0] )
|
|
|
|
|
{
|
|
|
|
|
memset( content_type, 0, sizeof(content_type) );
|
|
|
|
|
start_ptr = subcontent_type_header + strspn( subcontent_type_header, " " );
|
|
|
|
|
strcpy( content_type, start_ptr );
|
|
|
|
|
Debug( 3, "Got subcontent type '%s'", content_type );
|
|
|
|
|
}
|
|
|
|
|
state = CONTENT;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Debug( 3, "Unable to extract subheader from stream, retrying" );
|
|
|
|
|
int buffer_len = ReadData( buffer );
|
2010-03-01 03:16:40 +08:00
|
|
|
if ( buffer_len == 0 )
|
|
|
|
|
{
|
|
|
|
|
Error( "Connection dropped by remote end" );
|
|
|
|
|
return( 0 );
|
|
|
|
|
}
|
|
|
|
|
else if ( buffer_len < 0 )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to read subheader" );
|
2011-07-28 00:08:48 +08:00
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
state = SUBHEADERCONT;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case CONTENT :
|
|
|
|
|
{
|
|
|
|
|
if ( !strcasecmp( content_type, "image/jpeg" ) || !strcasecmp( content_type, "image/jpg" ) )
|
|
|
|
|
{
|
|
|
|
|
format = JPEG;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "image/x-rgb" ) )
|
|
|
|
|
{
|
|
|
|
|
format = X_RGB;
|
|
|
|
|
}
|
|
|
|
|
else if ( !strcasecmp( content_type, "image/x-rgbz" ) )
|
|
|
|
|
{
|
|
|
|
|
format = X_RGBZ;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Error( "Found unsupported content type '%s'", content_type );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( format == JPEG && buffer.size() >= 2 )
|
|
|
|
|
{
|
|
|
|
|
if ( buffer[0] != 0xff || buffer[1] != 0xd8 )
|
|
|
|
|
{
|
|
|
|
|
Error( "Found bogus jpeg header '%02x%02x'", buffer[0], buffer[1] );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( content_length )
|
|
|
|
|
{
|
2013-11-24 21:37:47 +08:00
|
|
|
while ( (long)buffer.size() < content_length )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
|
|
|
|
//int buffer_len = ReadData( buffer, content_length-buffer.size() );
|
|
|
|
|
int buffer_len = ReadData( buffer );
|
2010-03-01 03:16:40 +08:00
|
|
|
if ( buffer_len == 0 )
|
|
|
|
|
{
|
|
|
|
|
Error( "Connection dropped by remote end" );
|
|
|
|
|
return( 0 );
|
|
|
|
|
}
|
|
|
|
|
else if ( buffer_len < 0 )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to read content" );
|
2011-07-28 00:08:48 +08:00
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
Debug( 3, "Got end of image by length, content-length = %d", content_length );
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
int content_pos = 0;
|
|
|
|
|
while ( !content_length )
|
|
|
|
|
{
|
|
|
|
|
int buffer_len = ReadData( buffer );
|
2010-03-01 03:16:40 +08:00
|
|
|
if ( buffer_len == 0 )
|
|
|
|
|
{
|
2011-07-28 00:08:48 +08:00
|
|
|
if ( mode == MULTI_IMAGE )
|
|
|
|
|
{
|
|
|
|
|
Error( "Connection dropped by remote end" );
|
|
|
|
|
return( 0 );
|
|
|
|
|
}
|
2010-03-01 03:16:40 +08:00
|
|
|
}
|
|
|
|
|
else if ( buffer_len < 0 )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to read content" );
|
2011-07-28 00:08:48 +08:00
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
int buffer_size = buffer.size();
|
|
|
|
|
if ( buffer_len )
|
|
|
|
|
{
|
|
|
|
|
if ( mode == MULTI_IMAGE )
|
|
|
|
|
{
|
|
|
|
|
while ( char *start_ptr = (char *)memstr( (char *)buffer+content_pos, "\r\n--", buffer_size-content_pos ) )
|
|
|
|
|
{
|
|
|
|
|
content_length = start_ptr - (char *)buffer;
|
|
|
|
|
Debug( 3, "Got end of image by pattern (crlf--), content-length = %d", content_length );
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
content_length = buffer_size;
|
|
|
|
|
Debug( 3, "Got end of image by closure, content-length = %d", content_length );
|
|
|
|
|
if ( mode == SINGLE_IMAGE )
|
|
|
|
|
{
|
|
|
|
|
char *end_ptr = (char *)buffer+buffer_size;
|
|
|
|
|
|
|
|
|
|
while( *end_ptr == '\r' || *end_ptr == '\n' )
|
|
|
|
|
{
|
|
|
|
|
content_length--;
|
|
|
|
|
end_ptr--;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( end_ptr != ((char *)buffer+buffer_size) )
|
|
|
|
|
{
|
|
|
|
|
Debug( 3, "Trimmed end of image, new content-length = %d", content_length );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if ( mode == SINGLE_IMAGE )
|
|
|
|
|
{
|
|
|
|
|
state = HEADER;
|
|
|
|
|
Disconnect();
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
state = SUBHEADER;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( format == JPEG && buffer.size() >= 2 )
|
|
|
|
|
{
|
|
|
|
|
if ( buffer[0] != 0xff || buffer[1] != 0xd8 )
|
|
|
|
|
{
|
|
|
|
|
Error( "Found bogus jpeg header '%02x%02x'", buffer[0], buffer[1] );
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
Debug( 3, "Returning %d (%d) bytes of captured content", content_length, buffer.size() );
|
|
|
|
|
return( content_length );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return( 0 );
|
2008-07-16 16:35:59 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int RemoteCameraHttp::PreCapture()
|
|
|
|
|
{
|
2011-07-28 00:08:48 +08:00
|
|
|
if ( sd < 0 )
|
|
|
|
|
{
|
|
|
|
|
Connect();
|
|
|
|
|
if ( sd < 0 )
|
|
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to connect to camera" );
|
2011-07-28 00:08:48 +08:00
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
mode = SINGLE_IMAGE;
|
|
|
|
|
buffer.clear();
|
|
|
|
|
}
|
|
|
|
|
if ( mode == SINGLE_IMAGE )
|
|
|
|
|
{
|
|
|
|
|
if ( SendRequest() < 0 )
|
|
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to send request" );
|
2011-07-28 00:08:48 +08:00
|
|
|
Disconnect();
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return( 0 );
|
2008-07-16 16:35:59 +08:00
|
|
|
}
|
|
|
|
|
|
2009-01-28 17:48:06 +08:00
|
|
|
int RemoteCameraHttp::Capture( Image &image )
|
2008-07-16 16:35:59 +08:00
|
|
|
{
|
2013-11-04 16:54:39 +08:00
|
|
|
int content_length = GetResponse();
|
2010-03-01 03:16:40 +08:00
|
|
|
if ( content_length == 0 )
|
|
|
|
|
{
|
|
|
|
|
Warning( "Unable to capture image, retrying" );
|
|
|
|
|
return( 1 );
|
|
|
|
|
}
|
2013-11-04 16:54:39 +08:00
|
|
|
if ( content_length < 0 )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to get response" );
|
2011-07-28 00:08:48 +08:00
|
|
|
Disconnect();
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
switch( format )
|
|
|
|
|
{
|
|
|
|
|
case JPEG :
|
|
|
|
|
{
|
2011-05-01 02:39:34 +08:00
|
|
|
if ( !image.DecodeJpeg( buffer.extract( content_length ), content_length, colours, subpixelorder ) )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
2008-07-16 16:35:59 +08:00
|
|
|
Error( "Unable to decode jpeg" );
|
2011-07-28 00:08:48 +08:00
|
|
|
Disconnect();
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case X_RGB :
|
|
|
|
|
{
|
2013-11-24 21:37:47 +08:00
|
|
|
if ( content_length != (long)image.Size() )
|
2011-07-28 00:08:48 +08:00
|
|
|
{
|
|
|
|
|
Error( "Image length mismatch, expected %d bytes, content length was %d", image.Size(), content_length );
|
|
|
|
|
Disconnect();
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
2011-05-01 02:39:34 +08:00
|
|
|
image.Assign( width, height, colours, subpixelorder, buffer, imagesize );
|
2011-07-28 00:08:48 +08:00
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case X_RGBZ :
|
|
|
|
|
{
|
|
|
|
|
if ( !image.Unzip( buffer.extract( content_length ), content_length ) )
|
|
|
|
|
{
|
|
|
|
|
Error( "Unable to unzip RGB image" );
|
|
|
|
|
Disconnect();
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
2011-05-01 02:39:34 +08:00
|
|
|
image.Assign( width, height, colours, subpixelorder, buffer, imagesize );
|
2011-07-28 00:08:48 +08:00
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
default :
|
|
|
|
|
{
|
|
|
|
|
Error( "Unexpected image format encountered" );
|
|
|
|
|
Disconnect();
|
|
|
|
|
return( -1 );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return( 0 );
|
2008-07-16 16:35:59 +08:00
|
|
|
}
|
2009-01-28 17:48:06 +08:00
|
|
|
|
|
|
|
|
int RemoteCameraHttp::PostCapture()
|
|
|
|
|
{
|
|
|
|
|
return( 0 );
|
|
|
|
|
}
|
