zoneminder/web/index.php

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<?php
//
// ZoneMinder main web interface file, $Date$, $Revision$
// 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.
//
error_reporting(E_ALL);
$debug = false;
if ( $debug ) {
// Use these for debugging, though not both at once!
phpinfo(INFO_VARIABLES);
//error_reporting( E_ALL );
}
// Use new style autoglobals where possible
if ( version_compare(phpversion(), '4.1.0', '<') ) {
$_SESSION = &$HTTP_SESSION_VARS;
$_SERVER = &$HTTP_SERVER_VARS;
}
// Useful debugging lines for mobile devices
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if ( false ) {
ob_start();
phpinfo(INFO_VARIABLES);
$fp = fopen('/tmp/env.html', 'w');
fwrite($fp, ob_get_contents());
fclose($fp);
ob_end_clean();
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}
require_once('includes/config.php');
require_once('includes/session.php');
require_once('includes/logger.php');
require_once('includes/Server.php');
require_once('includes/Storage.php');
require_once('includes/Event.php');
require_once('includes/Group.php');
require_once('includes/Monitor.php');
if (
(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on')
or
(isset($_SERVER['HTTP_X_FORWARDED_PROTO']) and ($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'))
) {
$protocol = 'https';
} else {
$protocol = 'http';
}
define('ZM_BASE_PROTOCOL', $protocol);
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// Absolute URL's are unnecessary and break compatibility with reverse proxies
// define( "ZM_BASE_URL", $protocol.'://'.$_SERVER['HTTP_HOST'] );
// Use relative URL's instead
define('ZM_BASE_URL', '');
// Verify the system, php, and mysql timezones all match
require_once('includes/functions.php');
check_timezone();
if ( isset($_GET['skin']) ) {
$skin = $_GET['skin'];
} else if ( isset($_COOKIE['zmSkin']) ) {
$skin = $_COOKIE['zmSkin'];
} else if ( defined('ZM_SKIN_DEFAULT') ) {
$skin = ZM_SKIN_DEFAULT;
} else {
$skin = 'classic';
}
$skins = array_map('basename', glob('skins/*', GLOB_ONLYDIR));
if ( ! in_array($skin, $skins) ) {
Error("Invalid skin '$skin' setting to " . $skins[0]);
$skin = $skins[0];
}
if ( isset($_GET['css']) ) {
$css = $_GET['css'];
} elseif ( isset($_COOKIE['zmCSS']) ) {
$css = $_COOKIE['zmCSS'];
} elseif ( defined('ZM_CSS_DEFAULT') ) {
$css = ZM_CSS_DEFAULT;
} else {
$css = 'classic';
}
$css_skins = array_map('basename', glob('skins/'.$skin.'/css/*',GLOB_ONLYDIR));
if ( !in_array($css, $css_skins) ) {
Error("Invalid skin css '$css' setting to " . $css_skins[0]);
$css = $css_skins[0];
}
define('ZM_BASE_PATH', dirname($_SERVER['REQUEST_URI']));
define('ZM_SKIN_PATH', "skins/$skin");
define('ZM_SKIN_NAME', $skin);
$skinBase = array(); // To allow for inheritance of skins
if ( !file_exists(ZM_SKIN_PATH) )
Fatal("Invalid skin '$skin'");
$skinBase[] = $skin;
zm_session_start();
if ( !isset($_SESSION['skin']) || isset($_REQUEST['skin']) || !isset($_COOKIE['zmSkin']) || $_COOKIE['zmSkin'] != $skin ) {
$_SESSION['skin'] = $skin;
setcookie('zmSkin', $skin, time()+3600*24*30*12*10);
}
if ( !isset($_SESSION['css']) || isset($_REQUEST['css']) || !isset($_COOKIE['zmCSS']) || $_COOKIE['zmCSS'] != $css ) {
$_SESSION['css'] = $css;
setcookie('zmCSS', $css, time()+3600*24*30*12*10);
}
if ( ZM_OPT_USE_AUTH ) {
if ( isset($_SESSION['user']) ) {
$user = $_SESSION['user'];
} else {
unset($user);
}
} else {
$user = $defaultUser;
}
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# Only one request can open the session file at a time, so let's close the session here to improve concurrency.
# Any file/page that sets session variables must re-open it.
session_write_close();
require_once('includes/lang.php');
# Running is global but only do the daemonCheck if it is actually needed
$running = null;
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# Add Cross domain access headers
CORSHeaders();
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// Check for valid content dirs
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if ( !is_writable(ZM_DIR_EVENTS) ) {
Warning("Cannot write to event folder ".ZM_DIR_EVENTS.". Check that it exists and is owned by the web account user.");
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}
# Globals
$action = null;
$error_message = null;
$redirect = null;
$view = null;
if ( isset($_REQUEST['view']) )
$view = detaintPath($_REQUEST['view']);
# Add CSP Headers
$cspNonce = bin2hex(openssl_random_pseudo_bytes(16));
$request = null;
if ( isset($_REQUEST['request']) )
$request = detaintPath($_REQUEST['request']);
foreach ( getSkinIncludes('skin.php') as $includeFile )
require_once $includeFile;
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# User Login will be performed in auth.php
require_once('includes/auth.php');
if ( isset($_REQUEST['action']) )
$action = detaintPath($_REQUEST['action']);
# The only variable we really need to set is action. The others are informal.
isset($view) || $view = NULL;
isset($request) || $request = NULL;
isset($action) || $action = NULL;
Logger::Debug("View: $view Request: $request Action: $action");
if (
ZM_ENABLE_CSRF_MAGIC &&
( $action != 'login' ) &&
( $view != 'view_video' ) &&
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( $view != 'image' ) &&
( $request != 'control' ) &&
( $view != 'frames' ) &&
( $view != 'archive' )
) {
require_once( 'includes/csrf/csrf-magic.php' );
#Logger::Debug("Calling csrf_check with the following values: \$request = \"$request\", \$view = \"$view\", \$action = \"$action\"");
csrf_check();
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}
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# Need to include actions because it does auth
if ( $action ) {
if ( file_exists('includes/actions/'.$view.'.php') ) {
Logger::Debug("Including includes/actions/$view.php");
require_once('includes/actions/'.$view.'.php');
} else {
Warning("No includes/actions/$view.php for action $action");
}
}
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# If I put this here, it protects all views and popups, but it has to go after actions.php because actions.php does the actual logging in.
if ( ZM_OPT_USE_AUTH and !isset($user) ) {
Logger::Debug('Redirecting to login');
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$view = 'login';
$request = null;
} else if ( ZM_SHOW_PRIVACY && ($action != 'privacy') && ($view != 'options') && (!$request) && canEdit('System') ) {
Logger::Debug('Redirecting to privacy');
$view = 'privacy';
$request = null;
}
CSPHeaders($view, $cspNonce);
if ( $redirect ) {
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header('Location: '.$redirect);
return;
}
if ( $request ) {
foreach ( getSkinIncludes('ajax/'.$request.'.php', true, true) as $includeFile ) {
if ( !file_exists($includeFile) )
Fatal("Request '$request' does not exist");
require_once $includeFile;
}
return;
}
if ( $includeFiles = getSkinIncludes('views/'.$view.'.php', true, true) ) {
foreach ( $includeFiles as $includeFile ) {
if ( !file_exists($includeFile) )
Fatal("View '$view' does not exist");
require_once $includeFile;
}
// If the view overrides $view to 'error', and the user is not logged in, then the
// issue is probably resolvable by logging in, so provide the opportunity to do so.
// The login view should handle redirecting to the correct location afterward.
if ( $view == 'error' && !isset($user) ) {
$view = 'login';
foreach ( getSkinIncludes('views/login.php', true, true) as $includeFile )
require_once $includeFile;
}
}
// If the view is missing or the view still returned error with the user logged in,
// then it is not recoverable.
if ( !$includeFiles || $view == 'error' ) {
foreach ( getSkinIncludes('views/error.php', true, true) as $includeFile )
require_once $includeFile;
}
?>