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zoneminder/src/zms.cpp

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//
// ZoneMinder Streaming Server, $Date$, $Revision$
// Copyright (C) 2001-2008 Philip Coombes
//
// 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 "zm.h"
#include "zm_db.h"
#include "zm_user.h"
#include "zm_signal.h"
#include "zm_monitorstream.h"
#include "zm_eventstream.h"
#include "zm_fifo_stream.h"
#include <string>
#include <unistd.h>
bool ValidateAccess(User *user, int mon_id) {
bool allowed = true;
if ( mon_id > 0 ) {
if ( user->getStream() < User::PERM_VIEW )
allowed = false;
if ( !user->canAccess(mon_id) )
allowed = false;
} else {
if ( user->getEvents() < User::PERM_VIEW )
allowed = false;
}
if ( !allowed ) {
Error("Insufficient privileges for request user %d %s for monitor %d",
user->Id(), user->getUsername(), mon_id);
}
return allowed;
}
int main(int argc, const char *argv[], char **envp) {
self = argv[0];
srand(getpid() * time(nullptr));
enum { ZMS_UNKNOWN, ZMS_MONITOR, ZMS_EVENT, ZMS_FIFO } source = ZMS_UNKNOWN;
enum { ZMS_JPEG, ZMS_MPEG, ZMS_RAW, ZMS_ZIP, ZMS_SINGLE } mode = ZMS_JPEG;
char format[32] = "";
int monitor_id = 0;
time_t event_time = 0;
uint64_t event_id = 0;
unsigned int frame_id = 1;
unsigned int scale = 100;
unsigned int rate = 100;
double maxfps = 10.0;
unsigned int bitrate = 100000;
unsigned int ttl = 0;
EventStream::StreamMode replay = EventStream::MODE_NONE;
std::string username;
std::string password;
char auth[64] = "";
std::string jwt_token_str = "";
unsigned int connkey = 0;
unsigned int playback_buffer = 0;
bool nph = false;
const char *basename = strrchr(argv[0], '/');
if ( basename ) // if we found a / lets skip past it
basename++;
else // argv[0] might not contain the full path, but just the script name
basename = argv[0];
const char *nph_prefix = "nph-";
if ( basename && !strncmp(basename, nph_prefix, strlen(nph_prefix)) ) {
nph = true;
}
char log_id_string[32] = "zms";
logInit(log_id_string);
zmLoadStaticConfig();
zmDbConnect();
zmLoadDBConfig();
for (char **env = envp; *env != 0; env++) {
char *thisEnv = *env;
Debug(1, "env: %s", thisEnv);
}
const char *query = getenv("QUERY_STRING");
if ( query == nullptr ) {
Fatal("No query string.");
return 0;
} // end if query
Debug(1, "Query: %s", query);
char *q_ptr = (char *)query;
char *parms[16]; // Shouldn't be more than this
int parm_no = 0;
while ( (parm_no < 16) && (parms[parm_no] = strtok(q_ptr, "&")) ) {
parm_no++;
q_ptr = nullptr;
}
for ( int p = 0; p < parm_no; p++ ) {
char *name = strtok(parms[p], "=");
char const *value = strtok(nullptr, "=");
if ( !value )
value = "";
if ( !strcmp(name, "source") ) {
if ( !strcmp(value, "event") ) {
source = ZMS_EVENT;
} else if ( !strcmp(value, "fifo") ) {
source = ZMS_FIFO;
} else {
source = ZMS_MONITOR;
}
} else if ( !strcmp(name, "mode") ) {
mode = !strcmp(value, "jpeg")?ZMS_JPEG:ZMS_MPEG;
mode = !strcmp(value, "raw")?ZMS_RAW:mode;
mode = !strcmp(value, "zip")?ZMS_ZIP:mode;
mode = !strcmp(value, "single")?ZMS_SINGLE:mode;
} else if ( !strcmp(name, "format") ) {
strncpy(format, value, sizeof(format)-1);
} else if ( !strcmp(name, "monitor") ) {
monitor_id = atoi(value);
if ( source == ZMS_UNKNOWN )
source = ZMS_MONITOR;
} else if ( !strcmp(name, "time") ) {
event_time = atoi(value);
} else if ( !strcmp(name, "event") ) {
event_id = strtoull(value, nullptr, 10);
source = ZMS_EVENT;
} else if ( !strcmp(name, "frame") ) {
frame_id = strtoull(value, nullptr, 10);
source = ZMS_EVENT;
} else if ( !strcmp(name, "scale") ) {
scale = atoi(value);
} else if ( !strcmp(name, "rate") ) {
rate = atoi(value);
} else if ( !strcmp(name, "maxfps") ) {
maxfps = atof(value);
} else if ( !strcmp(name, "bitrate") ) {
bitrate = atoi(value);
} else if ( !strcmp(name, "ttl") ) {
ttl = atoi(value);
} else if ( !strcmp(name, "replay") ) {
if ( !strcmp(value, "gapless") ) {
replay = EventStream::MODE_ALL_GAPLESS;
} else if ( !strcmp(value, "all") ) {
replay = EventStream::MODE_ALL;
} else if ( !strcmp(value, "none") ) {
replay = EventStream::MODE_NONE;
} else if ( !strcmp(value, "single") ) {
replay = EventStream::MODE_SINGLE;
} else {
Error("Unsupported value %s for replay, defaulting to none", value);
}
} else if ( !strcmp(name, "connkey") ) {
connkey = atoi(value);
} else if ( !strcmp(name, "buffer") ) {
playback_buffer = atoi(value);
} else if ( !strcmp(name, "auth") ) {
strncpy(auth, value, sizeof(auth)-1);
} else if ( !strcmp(name, "token") ) {
jwt_token_str = value;
Debug(1, "ZMS: JWT token found: %s", jwt_token_str.c_str());
} else if ( !strcmp(name, "user") ) {
username = UriDecode(value);
} else if ( !strcmp(name, "pass") ) {
password = UriDecode(value);
Debug(1, "Have %s for password", password.c_str());
} else {
Debug(1, "Unknown parameter passed to zms %s=%s", name, value);
} // end if possible parameter names
} // end foreach parm
if ( monitor_id ) {
snprintf(log_id_string, sizeof(log_id_string), "zms_m%d", monitor_id);
} else {
snprintf(log_id_string, sizeof(log_id_string), "zms_e%" PRIu64, event_id);
}
logInit(log_id_string);
if ( config.opt_use_auth ) {
User *user = nullptr;
if ( jwt_token_str != "" ) {
// user = zmLoadTokenUser(jwt_token_str, config.auth_hash_ips);
user = zmLoadTokenUser(jwt_token_str, false);
} else if ( strcmp(config.auth_relay, "none") == 0 ) {
if ( checkUser(username.c_str()) ) {
user = zmLoadUser(username.c_str());
} else {
Error("Bad username");
}
} else {
if ( *auth ) {
user = zmLoadAuthUser(auth, config.auth_hash_ips);
} else if ( username.length() && password.length() ) {
user = zmLoadUser(username.c_str(), password.c_str());
}
}
if ( !user ) {
fputs("HTTP/1.0 403 Forbidden\r\n\r\n", stdout);
const char *referer = getenv("HTTP_REFERER");
Error("Unable to authenticate user from %s", referer);
logTerm();
zmDbClose();
return 0;
}
if ( !ValidateAccess(user, monitor_id) ) {
delete user;
user = nullptr;
fputs("HTTP/1.0 403 Forbidden\r\n\r\n", stdout);
logTerm();
zmDbClose();
return 0;
}
delete user;
user = nullptr;
} // end if config.opt_use_auth
HwCapsDetect();
zmSetDefaultTermHandler();
zmSetDefaultDieHandler();
setbuf(stdout, nullptr);
if ( nph ) {
fputs("HTTP/1.0 200 OK\r\n", stdout);
}
fprintf(stdout, "Server: ZoneMinder Video Server/%s\r\n", ZM_VERSION);
time_t now = time(nullptr);
char date_string[64];
tm now_tm = {};
strftime(date_string, sizeof(date_string)-1,
"%a, %d %b %Y %H:%M:%S GMT", gmtime_r(&now, &now_tm));
fputs("Last-Modified: ", stdout);
fputs(date_string, stdout);
fputs(
"\r\nExpires: Mon, 26 Jul 1997 05:00:00 GMT\r\n"
"Cache-Control: no-store, no-cache, must-revalidate\r\n"
"Cache-Control: post-check=0, pre-check=0\r\n"
"Pragma: no-cache\r\n",
stdout);
if ( source == ZMS_MONITOR ) {
MonitorStream stream;
stream.setStreamScale(scale);
stream.setStreamReplayRate(rate);
stream.setStreamMaxFPS(maxfps);
stream.setStreamTTL(ttl);
stream.setStreamQueue(connkey);
stream.setStreamBuffer(playback_buffer);
if ( !stream.setStreamStart(monitor_id) ) {
Error("Unable set start stream for monitor %d", monitor_id);
stream.sendTextFrame("Unable to connect to monitor");
logTerm();
zmDbClose();
return -1;
}
if ( mode == ZMS_JPEG ) {
stream.setStreamType(MonitorStream::STREAM_JPEG);
} else if ( mode == ZMS_RAW ) {
stream.setStreamType(MonitorStream::STREAM_RAW);
} else if ( mode == ZMS_ZIP ) {
stream.setStreamType(MonitorStream::STREAM_ZIP);
} else if ( mode == ZMS_SINGLE ) {
stream.setStreamType(MonitorStream::STREAM_SINGLE);
} else {
#if HAVE_LIBAVCODEC
stream.setStreamFormat(format);
stream.setStreamBitrate(bitrate);
stream.setStreamType(MonitorStream::STREAM_MPEG);
#else // HAVE_LIBAVCODEC
Error("MPEG streaming of '%s' attempted while disabled", query);
fprintf(stderr, "MPEG streaming is disabled.\n"
"You should configure with the --with-ffmpeg"
" option and rebuild to use this functionality.\n");
logTerm();
zmDbClose();
return -1;
#endif // HAVE_LIBAVCODEC
}
stream.runStream();
} else if ( source == ZMS_FIFO ) {
FifoStream stream;
stream.setStreamMaxFPS(maxfps);
stream.setStreamStart(monitor_id, format);
stream.runStream();
} else if ( source == ZMS_EVENT ) {
if ( !event_id ) {
Fatal("Can't view an event without specifying an event_id.");
}
EventStream stream;
stream.setStreamScale(scale);
stream.setStreamReplayRate(rate);
stream.setStreamMaxFPS(maxfps);
stream.setStreamMode(replay);
stream.setStreamQueue(connkey);
if ( monitor_id && event_time ) {
stream.setStreamStart(monitor_id, event_time);
} else {
Debug(3, "Setting stream start to frame (%d)", frame_id);
stream.setStreamStart(event_id, frame_id);
}
if ( mode == ZMS_JPEG ) {
stream.setStreamType(EventStream::STREAM_JPEG);
} else {
#if HAVE_LIBAVCODEC
stream.setStreamFormat(format);
stream.setStreamBitrate(bitrate);
stream.setStreamType(EventStream::STREAM_MPEG);
#else // HAVE_LIBAVCODEC
Error("MPEG streaming of '%s' attempted while disabled", query);
fprintf(stderr, "MPEG streaming is disabled.\n"
"You should ensure the ffmpeg libraries are installed and detected"
" and rebuild to use this functionality.\n");
logTerm();
zmDbClose();
return -1;
#endif // HAVE_LIBAVCODEC
} // end if jpeg or mpeg
stream.runStream();
} else {
Error("Neither a monitor or event was specified.");
} // end if monitor or event
Debug(1, "Terminating");
logTerm();
zmDbClose();
return 0;
}
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