325 lines
11 KiB
C++
325 lines
11 KiB
C++
//
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// ZoneMinder Streaming Server, $Date$, $Revision$
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// Copyright (C) 2001-2008 Philip Coombes
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <cinttypes>
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#include "zm.h"
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#include "zm_db.h"
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#include "zm_user.h"
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#include "zm_signal.h"
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#include "zm_monitor.h"
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#include "zm_monitorstream.h"
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#include "zm_eventstream.h"
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bool ValidateAccess( User *user, int mon_id ) {
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bool allowed = true;
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if ( mon_id > 0 ) {
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if ( user->getStream() < User::PERM_VIEW )
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allowed = false;
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if ( !user->canAccess( mon_id ) )
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allowed = false;
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} else {
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if ( user->getEvents() < User::PERM_VIEW )
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allowed = false;
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}
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if ( !allowed ) {
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Error( "Error, insufficient privileges for requested action user %d %s for monitor %d",
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user->Id(), user->getUsername(), mon_id );
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exit( -1 );
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}
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return allowed;
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}
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int main( int argc, const char *argv[] ) {
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self = argv[0];
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srand( getpid() * time( 0 ) );
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enum { ZMS_UNKNOWN, ZMS_MONITOR, ZMS_EVENT } source = ZMS_UNKNOWN;
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enum { ZMS_JPEG, ZMS_MPEG, ZMS_RAW, ZMS_ZIP, ZMS_SINGLE } mode = ZMS_JPEG;
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char format[32] = "";
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int monitor_id = 0;
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time_t event_time = 0;
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uint64_t event_id = 0;
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unsigned int frame_id = 1;
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unsigned int scale = 100;
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unsigned int rate = 100;
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double maxfps = 10.0;
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unsigned int bitrate = 100000;
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unsigned int ttl = 0;
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EventStream::StreamMode replay = EventStream::MODE_NONE;
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std::string username;
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std::string password;
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char auth[64] = "";
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unsigned int connkey = 0;
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unsigned int playback_buffer = 0;
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bool nph = false;
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const char *basename = strrchr(argv[0], '/');
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if ( basename ) //if we found a / lets skip past it
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basename++;
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else //argv[0] will not always contain the full path, but rather just the script name
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basename = argv[0];
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const char *nph_prefix = "nph-";
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if ( basename && !strncmp(basename, nph_prefix, strlen(nph_prefix)) ) {
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nph = true;
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}
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zmLoadConfig();
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const char *query = getenv("QUERY_STRING");
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if ( query ) {
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Debug(1, "Query: %s", query);
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char temp_query[1024];
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strncpy(temp_query, query, sizeof(temp_query));
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char *q_ptr = temp_query;
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char *parms[16]; // Shouldn't be more than this
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int parm_no = 0;
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while( (parm_no < 16) && (parms[parm_no] = strtok(q_ptr, "&")) ) {
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parm_no++;
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q_ptr = NULL;
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}
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for ( int p = 0; p < parm_no; p++ ) {
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char *name = strtok(parms[p], "=");
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char *value = strtok(NULL, "=");
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if ( !value )
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value = (char *)"";
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if ( !strcmp(name, "source") ) {
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source = !strcmp(value, "event")?ZMS_EVENT:ZMS_MONITOR;
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} else if ( !strcmp(name, "mode") ) {
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mode = !strcmp(value, "jpeg")?ZMS_JPEG:ZMS_MPEG;
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mode = !strcmp(value, "raw")?ZMS_RAW:mode;
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mode = !strcmp(value, "zip")?ZMS_ZIP:mode;
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mode = !strcmp(value, "single")?ZMS_SINGLE:mode;
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} else if ( !strcmp( name, "format" ) ) {
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strncpy( format, value, sizeof(format) );
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} else if ( !strcmp( name, "monitor" ) ) {
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monitor_id = atoi( value );
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if ( source == ZMS_UNKNOWN )
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source = ZMS_MONITOR;
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} else if ( !strcmp( name, "time" ) ) {
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event_time = atoi( value );
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} else if ( !strcmp( name, "event" ) ) {
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event_id = strtoull( value, (char **)NULL, 10 );
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source = ZMS_EVENT;
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} else if ( !strcmp( name, "frame" ) ) {
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frame_id = strtoull( value, (char **)NULL, 10 );
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source = ZMS_EVENT;
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} else if ( !strcmp( name, "scale" ) ) {
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scale = atoi( value );
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} else if ( !strcmp( name, "rate" ) ) {
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rate = atoi( value );
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} else if ( !strcmp( name, "maxfps" ) ) {
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maxfps = atof( value );
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} else if ( !strcmp( name, "bitrate" ) ) {
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bitrate = atoi( value );
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} else if ( !strcmp( name, "ttl" ) ) {
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ttl = atoi(value);
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} else if ( !strcmp( name, "replay" ) ) {
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if ( !strcmp(value, "gapless") ) {
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replay = EventStream::MODE_ALL_GAPLESS;
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} else if ( !strcmp(value, "all") ) {
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replay = EventStream::MODE_ALL;
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} else if ( !strcmp(value, "none") ) {
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replay = EventStream::MODE_NONE;
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} else if ( !strcmp(value, "single") ) {
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replay = EventStream::MODE_SINGLE;
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} else {
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Error("Unsupported value %s for replay, defaulting to none", value);
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}
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} else if ( !strcmp( name, "connkey" ) ) {
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connkey = atoi(value);
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} else if ( !strcmp( name, "buffer" ) ) {
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playback_buffer = atoi(value);
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} else if ( config.opt_use_auth ) {
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if ( strcmp( config.auth_relay, "none" ) == 0 ) {
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if ( !strcmp( name, "user" ) ) {
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username = value;
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}
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} else {
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//if ( strcmp( config.auth_relay, "hashed" ) == 0 )
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{
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if ( !strcmp( name, "auth" ) ) {
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strncpy( auth, value, sizeof(auth)-1 );
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}
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}
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//else if ( strcmp( config.auth_relay, "plain" ) == 0 )
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{
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if ( !strcmp( name, "user" ) ) {
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username = UriDecode( value );
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}
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if ( !strcmp( name, "pass" ) ) {
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password = UriDecode( value );
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Debug( 1, "Have %s for password", password.c_str() );
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}
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}
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}
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}
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} // end foreach parm
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} // end if query
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char log_id_string[32] = "zms";
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if ( monitor_id ) {
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snprintf(log_id_string, sizeof(log_id_string), "zms_m%d", monitor_id);
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} else {
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snprintf(log_id_string, sizeof(log_id_string), "zms_e%" PRIu64, event_id);
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}
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logInit( log_id_string );
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if ( config.opt_use_auth ) {
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User *user = 0;
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if ( strcmp(config.auth_relay, "none") == 0 ) {
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if ( username.length() ) {
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user = zmLoadUser(username.c_str());
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}
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} else {
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//if ( strcmp( config.auth_relay, "hashed" ) == 0 )
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{
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if ( *auth ) {
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user = zmLoadAuthUser(auth, config.auth_hash_ips);
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}
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}
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//else if ( strcmp( config.auth_relay, "plain" ) == 0 )
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{
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if ( username.length() && password.length() ) {
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user = zmLoadUser(username.c_str(), password.c_str());
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}
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}
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}
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if ( !user ) {
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Error("Unable to authenticate user");
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logTerm();
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zmDbClose();
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return -1;
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}
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ValidateAccess(user, monitor_id);
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} // end if config.opt_use_auth
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hwcaps_detect();
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zmSetDefaultTermHandler();
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zmSetDefaultDieHandler();
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setbuf( stdout, 0 );
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if ( nph ) {
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fprintf( stdout, "HTTP/1.0 200 OK\r\n" );
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}
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fprintf( stdout, "Server: ZoneMinder Video Server/%s\r\n", ZM_VERSION );
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time_t now = time( 0 );
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char date_string[64];
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strftime( date_string, sizeof(date_string)-1, "%a, %d %b %Y %H:%M:%S GMT", gmtime( &now ) );
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fprintf( stdout, "Expires: Mon, 26 Jul 1997 05:00:00 GMT\r\n" );
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fprintf( stdout, "Last-Modified: %s\r\n", date_string );
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fprintf( stdout, "Cache-Control: no-store, no-cache, must-revalidate\r\n" );
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fprintf( stdout, "Cache-Control: post-check=0, pre-check=0\r\n" );
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fprintf( stdout, "Pragma: no-cache\r\n");
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// Removed as causing more problems than it fixed.
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//if ( !nph )
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//{
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//fprintf( stdout, "Content-Length: 0\r\n");
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//}
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if ( source == ZMS_MONITOR ) {
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MonitorStream stream;
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stream.setStreamScale( scale );
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stream.setStreamReplayRate( rate );
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stream.setStreamMaxFPS( maxfps );
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stream.setStreamTTL( ttl );
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stream.setStreamQueue( connkey );
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stream.setStreamBuffer( playback_buffer );
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if ( ! stream.setStreamStart( monitor_id ) ) {
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Error( "Unable to connect to zmc process for monitor %d", monitor_id );
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fprintf( stderr, "Unable to connect to zmc process. Please ensure that it is running." );
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logTerm();
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zmDbClose();
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return( -1 );
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}
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if ( mode == ZMS_JPEG ) {
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stream.setStreamType( MonitorStream::STREAM_JPEG );
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} else if ( mode == ZMS_RAW ) {
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stream.setStreamType( MonitorStream::STREAM_RAW );
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} else if ( mode == ZMS_ZIP ) {
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stream.setStreamType( MonitorStream::STREAM_ZIP );
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} else if ( mode == ZMS_SINGLE ) {
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stream.setStreamType( MonitorStream::STREAM_SINGLE );
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} else {
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#if HAVE_LIBAVCODEC
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stream.setStreamFormat( format );
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stream.setStreamBitrate( bitrate );
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stream.setStreamType( MonitorStream::STREAM_MPEG );
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#else // HAVE_LIBAVCODEC
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Error( "MPEG streaming of '%s' attempted while disabled", query );
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fprintf( stderr, "MPEG streaming is disabled.\nYou should configure with the --with-ffmpeg option and rebuild to use this functionality.\n" );
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logTerm();
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zmDbClose();
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return( -1 );
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#endif // HAVE_LIBAVCODEC
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}
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stream.runStream();
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} else if ( source == ZMS_EVENT ) {
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if ( ! event_id ) {
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Fatal( "Can't view an event without specifying an event_id." );
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}
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Debug(3,"Doing event stream scale(%d)", scale );
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EventStream stream;
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stream.setStreamScale( scale );
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stream.setStreamReplayRate( rate );
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stream.setStreamMaxFPS( maxfps );
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stream.setStreamMode( replay );
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stream.setStreamQueue( connkey );
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if ( monitor_id && event_time ) {
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stream.setStreamStart(monitor_id, event_time);
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} else {
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Debug(3, "Setting stream start to frame (%d)", frame_id);
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stream.setStreamStart(event_id, frame_id);
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}
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if ( mode == ZMS_JPEG ) {
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stream.setStreamType( EventStream::STREAM_JPEG );
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} else {
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#if HAVE_LIBAVCODEC
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stream.setStreamFormat( format );
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stream.setStreamBitrate( bitrate );
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stream.setStreamType( EventStream::STREAM_MPEG );
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#else // HAVE_LIBAVCODEC
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Error( "MPEG streaming of '%s' attempted while disabled", query );
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fprintf( stderr, "MPEG streaming is disabled.\nYou should ensure the ffmpeg libraries are installed and detected and rebuild to use this functionality.\n" );
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logTerm();
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zmDbClose();
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return( -1 );
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#endif // HAVE_LIBAVCODEC
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} // end if jpeg or mpeg
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stream.runStream();
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} else {
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Error("Neither a monitor or event was specified.");
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} // end if monitor or event
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logTerm();
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zmDbClose();
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return( 0 );
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}
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