794 lines
24 KiB
PHP
Executable File
794 lines
24 KiB
PHP
Executable File
<?php
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/**
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* Class for utility functions
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*
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*/
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class OC_Util {
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public static $scripts=array();
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public static $styles=array();
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public static $headers=array();
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private static $rootMounted=false;
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private static $fsSetup=false;
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public static $core_styles=array();
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public static $core_scripts=array();
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// Can be set up
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public static function setupFS( $user = '' ) {// configure the initial filesystem based on the configuration
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if(self::$fsSetup) {//setting up the filesystem twice can only lead to trouble
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return false;
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}
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// If we are not forced to load a specific user we load the one that is logged in
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if( $user == "" && OC_User::isLoggedIn()) {
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$user = OC_User::getUser();
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}
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// load all filesystem apps before, so no setup-hook gets lost
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if(!isset($RUNTIME_NOAPPS) || !$RUNTIME_NOAPPS) {
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OC_App::loadApps(array('filesystem'));
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}
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// the filesystem will finish when $user is not empty,
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// mark fs setup here to avoid doing the setup from loading
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// OC_Filesystem
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if ($user != '') {
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self::$fsSetup=true;
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}
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$CONFIG_DATADIRECTORY = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
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//first set up the local "root" storage
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if(!self::$rootMounted) {
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\OC\Files\Filesystem::mount('\OC\Files\Storage\Local', array('datadir'=>$CONFIG_DATADIRECTORY), '/');
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self::$rootMounted=true;
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}
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if( $user != "" ) { //if we aren't logged in, there is no use to set up the filesystem
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$user_dir = '/'.$user.'/files';
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$user_root = OC_User::getHome($user);
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$userdirectory = $user_root . '/files';
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if( !is_dir( $userdirectory )) {
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mkdir( $userdirectory, 0755, true );
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}
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//jail the user into his "home" directory
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\OC\Files\Filesystem::init($user, $user_dir);
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$quotaProxy=new OC_FileProxy_Quota();
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$fileOperationProxy = new OC_FileProxy_FileOperations();
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OC_FileProxy::register($quotaProxy);
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OC_FileProxy::register($fileOperationProxy);
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OC_Hook::emit('OC_Filesystem', 'setup', array('user' => $user, 'user_dir' => $user_dir));
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}
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return true;
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}
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public static function tearDownFS() {
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\OC\Files\Filesystem::tearDown();
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self::$fsSetup=false;
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}
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/**
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* get the current installed version of ownCloud
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* @return array
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*/
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public static function getVersion() {
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// hint: We only can count up. Reset minor/patchlevel when
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// updating major/minor version number.
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return array(5, 80, 01);
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}
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/**
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* get the current installed version string of ownCloud
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* @return string
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*/
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public static function getVersionString() {
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return '6.0 pre alpha';
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}
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/**
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* get the current installed edition of ownCloud. There is the community
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* edition that just returns an empty string and the enterprise edition
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* that returns "Enterprise".
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* @return string
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*/
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public static function getEditionString() {
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return '';
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}
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/**
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* add a javascript file
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*
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* @param appid $application
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* @param filename $file
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*/
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public static function addScript( $application, $file = null ) {
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if( is_null( $file )) {
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$file = $application;
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$application = "";
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}
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if( !empty( $application )) {
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self::$scripts[] = "$application/js/$file";
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}else{
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self::$scripts[] = "js/$file";
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}
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}
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/**
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* add a css file
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*
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* @param appid $application
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* @param filename $file
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*/
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public static function addStyle( $application, $file = null ) {
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if( is_null( $file )) {
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$file = $application;
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$application = "";
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}
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if( !empty( $application )) {
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self::$styles[] = "$application/css/$file";
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}else{
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self::$styles[] = "css/$file";
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}
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}
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/**
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* @brief Add a custom element to the header
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* @param string tag tag name of the element
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* @param array $attributes array of attributes for the element
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* @param string $text the text content for the element
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*/
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public static function addHeader( $tag, $attributes, $text='') {
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self::$headers[] = array('tag'=>$tag, 'attributes'=>$attributes, 'text'=>$text);
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}
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/**
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* formats a timestamp in the "right" way
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*
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* @param int timestamp $timestamp
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* @param bool dateOnly option to omit time from the result
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*/
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public static function formatDate( $timestamp, $dateOnly=false) {
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if(isset($_SESSION['timezone'])) {//adjust to clients timezone if we know it
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$systemTimeZone = intval(date('O'));
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$systemTimeZone=(round($systemTimeZone/100, 0)*60)+($systemTimeZone%100);
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$clientTimeZone=$_SESSION['timezone']*60;
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$offset=$clientTimeZone-$systemTimeZone;
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$timestamp=$timestamp+$offset*60;
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}
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$l=OC_L10N::get('lib');
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return $l->l($dateOnly ? 'date' : 'datetime', $timestamp);
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}
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/**
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* check if the current server configuration is suitable for ownCloud
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* @return array arrays with error messages and hints
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*/
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public static function checkServer() {
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$errors=array();
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$web_server_restart= false;
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//check for database drivers
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if(!(is_callable('sqlite_open') or class_exists('SQLite3'))
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and !is_callable('mysql_connect')
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and !is_callable('pg_connect')) {
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$errors[]=array('error'=>'No database drivers (sqlite, mysql, or postgresql) installed.',
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'hint'=>'');//TODO: sane hint
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$web_server_restart= true;
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}
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//common hint for all file permissons error messages
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$permissionsHint='Permissions can usually be fixed by giving the webserver write access'
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.' to the ownCloud directory';
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// Check if config folder is writable.
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if(!is_writable(OC::$SERVERROOT."/config/") or !is_readable(OC::$SERVERROOT."/config/")) {
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$errors[]=array('error'=>"Can't write into config directory 'config'",
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'hint'=>'You can usually fix this by giving the webserver user write access'
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.' to the config directory in owncloud');
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}
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// Check if there is a writable install folder.
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if(OC_Config::getValue('appstoreenabled', true)) {
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if( OC_App::getInstallPath() === null
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|| !is_writable(OC_App::getInstallPath())
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|| !is_readable(OC_App::getInstallPath()) ) {
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$errors[]=array('error'=>"Can't write into apps directory",
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'hint'=>'You can usually fix this by giving the webserver user write access'
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.' to the apps directory in owncloud or disabling the appstore in the config file.');
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}
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}
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$CONFIG_DATADIRECTORY = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
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// Create root dir.
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if(!is_dir($CONFIG_DATADIRECTORY)) {
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$success=@mkdir($CONFIG_DATADIRECTORY);
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if ($success) {
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$errors = array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
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} else {
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$errors[]=array('error'=>"Can't create data directory (".$CONFIG_DATADIRECTORY.")",
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'hint'=>"You can usually fix this by giving the webserver write access to the ownCloud directory '"
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.OC::$SERVERROOT."' (in a terminal, use the command "
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."'chown -R www-data:www-data /path/to/your/owncloud/install/data' ");
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}
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} else if(!is_writable($CONFIG_DATADIRECTORY) or !is_readable($CONFIG_DATADIRECTORY)) {
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$errors[]=array('error'=>'Data directory ('.$CONFIG_DATADIRECTORY.') not writable by ownCloud',
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'hint'=>$permissionsHint);
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} else {
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$errors = array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
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}
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// check if all required php modules are present
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if(!class_exists('ZipArchive')) {
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$errors[]=array('error'=>'PHP module zip not installed.',
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'hint'=>'Please ask your server administrator to install the module.');
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$web_server_restart= false;
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}
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if(!class_exists('DOMDocument')) {
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$errors[] = array('error' => 'PHP module dom not installed.',
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'hint' => 'Please ask your server administrator to install the module.');
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$web_server_restart = false;
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}
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if(!function_exists('xml_parser_create')) {
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$errors[] = array('error' => 'PHP module libxml not installed.',
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'hint' => 'Please ask your server administrator to install the module.');
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$web_server_restart = false;
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}
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if(!function_exists('mb_detect_encoding')) {
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$errors[]=array('error'=>'PHP module mb multibyte not installed.',
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'hint'=>'Please ask your server administrator to install the module.');
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$web_server_restart= false;
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}
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if(!function_exists('ctype_digit')) {
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$errors[]=array('error'=>'PHP module ctype is not installed.',
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'hint'=>'Please ask your server administrator to install the module.');
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$web_server_restart= false;
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}
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if(!function_exists('json_encode')) {
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$errors[]=array('error'=>'PHP module JSON is not installed.',
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'hint'=>'Please ask your server administrator to install the module.');
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$web_server_restart= false;
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}
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if(!function_exists('imagepng')) {
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$errors[]=array('error'=>'PHP module GD is not installed.',
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'hint'=>'Please ask your server administrator to install the module.');
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$web_server_restart= false;
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}
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if(!function_exists('gzencode')) {
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$errors[]=array('error'=>'PHP module zlib is not installed.',
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'hint'=>'Please ask your server administrator to install the module.');
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$web_server_restart= false;
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}
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if(!function_exists('iconv')) {
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$errors[]=array('error'=>'PHP module iconv is not installed.',
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'hint'=>'Please ask your server administrator to install the module.');
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$web_server_restart= false;
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}
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if(!function_exists('simplexml_load_string')) {
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$errors[]=array('error'=>'PHP module SimpleXML is not installed.',
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'hint'=>'Please ask your server administrator to install the module.');
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$web_server_restart= false;
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}
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if(floatval(phpversion())<5.3) {
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$errors[]=array('error'=>'PHP 5.3 is required.',
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'hint'=>'Please ask your server administrator to update PHP to version 5.3 or higher.'
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.' PHP 5.2 is no longer supported by ownCloud and the PHP community.');
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$web_server_restart= false;
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}
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if(!defined('PDO::ATTR_DRIVER_NAME')) {
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$errors[]=array('error'=>'PHP PDO module is not installed.',
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'hint'=>'Please ask your server administrator to install the module.');
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$web_server_restart= false;
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}
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if (((strtolower(@ini_get('safe_mode')) == 'on')
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|| (strtolower(@ini_get('safe_mode')) == 'yes')
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|| (strtolower(@ini_get('safe_mode')) == 'true')
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|| (ini_get("safe_mode") == 1 ))) {
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$errors[]=array('error'=>'PHP Safe Mode is enabled. ownCloud requires that it is disabled to work properly.',
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'hint'=>'PHP Safe Mode is a deprecated and mostly useless setting that should be disabled. Please ask your server administrator to disable it in php.ini or in your webserver config.');
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$web_server_restart= false;
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}
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if($web_server_restart) {
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$errors[]=array('error'=>'PHP modules have been installed, but they are still listed as missing?',
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'hint'=>'Please ask your server administrator to restart the web server.');
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}
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return $errors;
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}
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/**
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* Check for correct file permissions of data directory
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* @return array arrays with error messages and hints
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*/
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public static function checkDataDirectoryPermissions($dataDirectory) {
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$errors = array();
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if (stristr(PHP_OS, 'WIN')) {
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//TODO: permissions checks for windows hosts
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} else {
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$permissionsModHint = 'Please change the permissions to 0770 so that the directory'
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.' cannot be listed by other users.';
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$prems = substr(decoct(@fileperms($dataDirectory)), -3);
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if (substr($prems, -1) != '0') {
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OC_Helper::chmodr($dataDirectory, 0770);
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clearstatcache();
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$prems = substr(decoct(@fileperms($dataDirectory)), -3);
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if (substr($prems, 2, 1) != '0') {
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$errors[] = array('error' => 'Data directory ('.$dataDirectory.') is readable for other users',
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'hint' => $permissionsModHint);
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}
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}
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}
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return $errors;
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}
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public static function displayLoginPage($errors = array()) {
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$parameters = array();
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foreach( $errors as $key => $value ) {
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$parameters[$value] = true;
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}
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if (!empty($_POST['user'])) {
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$parameters["username"] = $_POST['user'];
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$parameters['user_autofocus'] = false;
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} else {
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$parameters["username"] = '';
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$parameters['user_autofocus'] = true;
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}
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if (isset($_REQUEST['redirect_url'])) {
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$redirect_url = $_REQUEST['redirect_url'];
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$parameters['redirect_url'] = urlencode($redirect_url);
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}
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$parameters['alt_login'] = OC_App::getAlternativeLogIns();
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OC_Template::printGuestPage("", "login", $parameters);
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}
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/**
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* Check if the app is enabled, redirects to home if not
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*/
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public static function checkAppEnabled($app) {
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if( !OC_App::isEnabled($app)) {
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header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php' ));
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exit();
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}
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}
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/**
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* Check if the user is logged in, redirects to home if not. With
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* redirect URL parameter to the request URI.
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*/
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public static function checkLoggedIn() {
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// Check if we are a user
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if( !OC_User::isLoggedIn()) {
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header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php',
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array('redirect_url' => OC_Request::requestUri())));
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exit();
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}
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}
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/**
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* Check if the user is a admin, redirects to home if not
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*/
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public static function checkAdminUser() {
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if( !OC_User::isAdminUser(OC_User::getUser())) {
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header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php' ));
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exit();
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}
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}
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/**
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* Check if the user is a subadmin, redirects to home if not
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* @return array $groups where the current user is subadmin
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*/
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public static function checkSubAdminUser() {
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if(!OC_SubAdmin::isSubAdmin(OC_User::getUser())) {
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header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php' ));
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exit();
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}
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return true;
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}
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/**
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* Redirect to the user default page
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*/
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public static function redirectToDefaultPage() {
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if(isset($_REQUEST['redirect_url'])) {
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$location = OC_Helper::makeURLAbsolute(urldecode($_REQUEST['redirect_url']));
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}
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else if (isset(OC::$REQUESTEDAPP) && !empty(OC::$REQUESTEDAPP)) {
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$location = OC_Helper::linkToAbsolute( OC::$REQUESTEDAPP, 'index.php' );
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}
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else {
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$defaultpage = OC_Appconfig::getValue('core', 'defaultpage');
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if ($defaultpage) {
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$location = OC_Helper::makeURLAbsolute(OC::$WEBROOT.'/'.$defaultpage);
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}
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else {
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$location = OC_Helper::linkToAbsolute( 'files', 'index.php' );
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}
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}
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OC_Log::write('core', 'redirectToDefaultPage: '.$location, OC_Log::DEBUG);
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header( 'Location: '.$location );
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exit();
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}
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/**
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* get an id unique for this instance
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* @return string
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*/
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public static function getInstanceId() {
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$id = OC_Config::getValue('instanceid', null);
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if(is_null($id)) {
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// We need to guarantee at least one letter in instanceid so it can be used as the session_name
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$id = 'oc' . uniqid();
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OC_Config::setValue('instanceid', $id);
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}
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return $id;
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}
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/**
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* @brief Static lifespan (in seconds) when a request token expires.
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* @see OC_Util::callRegister()
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* @see OC_Util::isCallRegistered()
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* @description
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* Also required for the client side to compute the piont in time when to
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* request a fresh token. The client will do so when nearly 97% of the
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* timespan coded here has expired.
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*/
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public static $callLifespan = 3600; // 3600 secs = 1 hour
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/**
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* @brief Register an get/post call. Important to prevent CSRF attacks.
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* @todo Write howto: CSRF protection guide
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* @return $token Generated token.
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* @description
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* Creates a 'request token' (random) and stores it inside the session.
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* Ever subsequent (ajax) request must use such a valid token to succeed,
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* otherwise the request will be denied as a protection against CSRF.
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* The tokens expire after a fixed lifespan.
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* @see OC_Util::$callLifespan
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* @see OC_Util::isCallRegistered()
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*/
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public static function callRegister() {
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// Check if a token exists
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if(!isset($_SESSION['requesttoken'])) {
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// No valid token found, generate a new one.
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$requestToken = self::generate_random_bytes(20);
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$_SESSION['requesttoken']=$requestToken;
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} else {
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// Valid token already exists, send it
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$requestToken = $_SESSION['requesttoken'];
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}
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return($requestToken);
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}
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/**
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* @brief Check an ajax get/post call if the request token is valid.
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* @return boolean False if request token is not set or is invalid.
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* @see OC_Util::$callLifespan
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* @see OC_Util::callRegister()
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*/
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public static function isCallRegistered() {
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if(!isset($_SESSION['requesttoken'])) {
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return false;
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}
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if(isset($_GET['requesttoken'])) {
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$token=$_GET['requesttoken'];
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} elseif(isset($_POST['requesttoken'])) {
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$token=$_POST['requesttoken'];
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} elseif(isset($_SERVER['HTTP_REQUESTTOKEN'])) {
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$token=$_SERVER['HTTP_REQUESTTOKEN'];
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} else {
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//no token found.
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return false;
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}
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// Check if the token is valid
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if($token !== $_SESSION['requesttoken']) {
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// Not valid
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return false;
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} else {
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// Valid token
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return true;
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}
|
|
}
|
|
|
|
/**
|
|
* @brief Check an ajax get/post call if the request token is valid. exit if not.
|
|
* Todo: Write howto
|
|
*/
|
|
public static function callCheck() {
|
|
if(!OC_Util::isCallRegistered()) {
|
|
exit;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Public function to sanitize HTML
|
|
*
|
|
* This function is used to sanitize HTML and should be applied on any
|
|
* string or array of strings before displaying it on a web page.
|
|
*
|
|
* @param string or array of strings
|
|
* @return array with sanitized strings or a single sanitized string, depends on the input parameter.
|
|
*/
|
|
public static function sanitizeHTML( &$value ) {
|
|
if (is_array($value)) {
|
|
array_walk_recursive($value, 'OC_Util::sanitizeHTML');
|
|
} else {
|
|
$value = htmlentities((string)$value, ENT_QUOTES, 'UTF-8'); //Specify encoding for PHP<5.4
|
|
}
|
|
return $value;
|
|
}
|
|
|
|
|
|
/**
|
|
* Check if the htaccess file is working by creating a test file in the data directory and trying to access via http
|
|
*/
|
|
public static function ishtaccessworking() {
|
|
// testdata
|
|
$filename='/htaccesstest.txt';
|
|
$testcontent='testcontent';
|
|
|
|
// creating a test file
|
|
$testfile = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" ).'/'.$filename;
|
|
|
|
if(file_exists($testfile)) {// already running this test, possible recursive call
|
|
return false;
|
|
}
|
|
|
|
$fp = @fopen($testfile, 'w');
|
|
@fwrite($fp, $testcontent);
|
|
@fclose($fp);
|
|
|
|
// accessing the file via http
|
|
$url = OC_Helper::makeURLAbsolute(OC::$WEBROOT.'/data'.$filename);
|
|
$fp = @fopen($url, 'r');
|
|
$content=@fread($fp, 2048);
|
|
@fclose($fp);
|
|
|
|
// cleanup
|
|
@unlink($testfile);
|
|
|
|
// does it work ?
|
|
if($content==$testcontent) {
|
|
return(false);
|
|
}else{
|
|
return(true);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* we test if webDAV is working properly
|
|
*
|
|
* The basic assumption is that if the server returns 401/Not Authenticated for an unauthenticated PROPFIND
|
|
* the web server it self is setup properly.
|
|
*
|
|
* Why not an authenticated PROFIND and other verbs?
|
|
* - We don't have the password available
|
|
* - We have no idea about other auth methods implemented (e.g. OAuth with Bearer header)
|
|
*
|
|
*/
|
|
public static function isWebDAVWorking() {
|
|
if (!function_exists('curl_init')) {
|
|
return true;
|
|
}
|
|
$settings = array(
|
|
'baseUri' => OC_Helper::linkToRemote('webdav'),
|
|
);
|
|
|
|
// save the old timeout so that we can restore it later
|
|
$old_timeout=ini_get("default_socket_timeout");
|
|
|
|
// use a 5 sec timeout for the check. Should be enough for local requests.
|
|
ini_set("default_socket_timeout", 5);
|
|
|
|
$client = new \Sabre_DAV_Client($settings);
|
|
|
|
// for this self test we don't care if the ssl certificate is self signed and the peer cannot be verified.
|
|
$client->setVerifyPeer(false);
|
|
|
|
$return = true;
|
|
try {
|
|
// test PROPFIND
|
|
$client->propfind('', array('{DAV:}resourcetype'));
|
|
} catch(\Sabre_DAV_Exception_NotAuthenticated $e) {
|
|
$return = true;
|
|
} catch(\Exception $e) {
|
|
OC_Log::write('core', 'isWebDAVWorking: NO - Reason: '.$e, OC_Log::WARN);
|
|
$return = false;
|
|
}
|
|
|
|
// restore the original timeout
|
|
ini_set("default_socket_timeout", $old_timeout);
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Check if the setlocal call doesn't work. This can happen if the right
|
|
* local packages are not available on the server.
|
|
*/
|
|
public static function issetlocaleworking() {
|
|
// setlocale test is pointless on Windows
|
|
if (OC_Util::runningOnWindows() ) {
|
|
return true;
|
|
}
|
|
|
|
$result = setlocale(LC_ALL, 'en_US.UTF-8', 'en_US.UTF8');
|
|
if($result == false) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Check if the PHP module fileinfo is loaded.
|
|
* @return bool
|
|
*/
|
|
public static function fileInfoLoaded() {
|
|
return function_exists('finfo_open');
|
|
}
|
|
|
|
/**
|
|
* Check if the ownCloud server can connect to the internet
|
|
*/
|
|
public static function isinternetconnectionworking() {
|
|
|
|
// try to connect to owncloud.org to see if http connections to the internet are possible.
|
|
$connected = @fsockopen("www.owncloud.org", 80);
|
|
if ($connected) {
|
|
fclose($connected);
|
|
return true;
|
|
}else{
|
|
|
|
// second try in case one server is down
|
|
$connected = @fsockopen("apps.owncloud.com", 80);
|
|
if ($connected) {
|
|
fclose($connected);
|
|
return true;
|
|
}else{
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* clear all levels of output buffering
|
|
*/
|
|
public static function obEnd(){
|
|
while (ob_get_level()) {
|
|
ob_end_clean();
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Generates a cryptographical secure pseudorandom string
|
|
* @param Int with the length of the random string
|
|
* @return String
|
|
* Please also update secureRNG_available if you change something here
|
|
*/
|
|
public static function generate_random_bytes($length = 30) {
|
|
|
|
// Try to use openssl_random_pseudo_bytes
|
|
if(function_exists('openssl_random_pseudo_bytes')) {
|
|
$pseudo_byte = bin2hex(openssl_random_pseudo_bytes($length, $strong));
|
|
if($strong == true) {
|
|
return substr($pseudo_byte, 0, $length); // Truncate it to match the length
|
|
}
|
|
}
|
|
|
|
// Try to use /dev/urandom
|
|
$fp = @file_get_contents('/dev/urandom', false, null, 0, $length);
|
|
if ($fp !== false) {
|
|
$string = substr(bin2hex($fp), 0, $length);
|
|
return $string;
|
|
}
|
|
|
|
// Fallback to mt_rand()
|
|
$characters = '0123456789';
|
|
$characters .= 'abcdefghijklmnopqrstuvwxyz';
|
|
$charactersLength = strlen($characters)-1;
|
|
$pseudo_byte = "";
|
|
|
|
// Select some random characters
|
|
for ($i = 0; $i < $length; $i++) {
|
|
$pseudo_byte .= $characters[mt_rand(0, $charactersLength)];
|
|
}
|
|
return $pseudo_byte;
|
|
}
|
|
|
|
/**
|
|
* @brief Checks if a secure random number generator is available
|
|
* @return bool
|
|
*/
|
|
public static function secureRNG_available() {
|
|
|
|
// Check openssl_random_pseudo_bytes
|
|
if(function_exists('openssl_random_pseudo_bytes')) {
|
|
openssl_random_pseudo_bytes(1, $strong);
|
|
if($strong == true) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// Check /dev/urandom
|
|
$fp = @file_get_contents('/dev/urandom', false, null, 0, 1);
|
|
if ($fp !== false) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @Brief Get file content via curl.
|
|
* @param string $url Url to get content
|
|
* @return string of the response or false on error
|
|
* This function get the content of a page via curl, if curl is enabled.
|
|
* If not, file_get_element is used.
|
|
*/
|
|
|
|
public static function getUrlContent($url){
|
|
|
|
if (function_exists('curl_init')) {
|
|
|
|
$curl = curl_init();
|
|
|
|
curl_setopt($curl, CURLOPT_HEADER, 0);
|
|
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
|
|
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10);
|
|
curl_setopt($curl, CURLOPT_URL, $url);
|
|
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
|
|
curl_setopt($curl, CURLOPT_MAXREDIRS, 10);
|
|
|
|
curl_setopt($curl, CURLOPT_USERAGENT, "ownCloud Server Crawler");
|
|
if(OC_Config::getValue('proxy', '')<>'') {
|
|
curl_setopt($curl, CURLOPT_PROXY, OC_Config::getValue('proxy'));
|
|
}
|
|
if(OC_Config::getValue('proxyuserpwd', '')<>'') {
|
|
curl_setopt($curl, CURLOPT_PROXYUSERPWD, OC_Config::getValue('proxyuserpwd'));
|
|
}
|
|
$data = curl_exec($curl);
|
|
curl_close($curl);
|
|
|
|
} else {
|
|
$contextArray = null;
|
|
|
|
if(OC_Config::getValue('proxy', '')<>'') {
|
|
$contextArray = array(
|
|
'http' => array(
|
|
'timeout' => 10,
|
|
'proxy' => OC_Config::getValue('proxy')
|
|
)
|
|
);
|
|
} else {
|
|
$contextArray = array(
|
|
'http' => array(
|
|
'timeout' => 10
|
|
)
|
|
);
|
|
}
|
|
|
|
|
|
$ctx = stream_context_create(
|
|
$contextArray
|
|
);
|
|
$data=@file_get_contents($url, 0, $ctx);
|
|
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* @return bool - well are we running on windows or not
|
|
*/
|
|
public static function runningOnWindows() {
|
|
return (substr(PHP_OS, 0, 3) === "WIN");
|
|
}
|
|
|
|
}
|