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// This file is part of Moodle - http://moodle.org/
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Moodle 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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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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* Moodle deployment utility
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* This script looks after deploying new add-ons and available updates for them
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* to the local Moodle site. It can operate via both HTTP and CLI mode.
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* Moodle itself calls this utility via the HTTP mode when the admin is about to
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* install or update an add-on. You can use the CLI mode in your custom deployment
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* $ sudo -u apache php mdeploy.php --install \
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* --package=https://moodle.org/plugins/download.php/...zip \
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* --typeroot=/var/www/moodle/htdocs/blocks
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* --dataroot=/var/www/moodle/data
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* $ sudo -u apache php mdeploy.php --upgrade \
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* --package=https://moodle.org/plugins/download.php/...zip \
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* --typeroot=/var/www/moodle/htdocs/blocks
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* --dataroot=/var/www/moodle/data
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* When called via HTTP, additional parameters returnurl, passfile and password must be
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* provided. Optional proxy configuration can be passed using parameters proxy, proxytype
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* 1.1 - Added support to install a new plugin from the Moodle Plugins directory.
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* 1.0 - Initial version used in Moodle 2.4 to deploy available updates.
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* @copyright 2012 David Mudrak <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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if (defined('MOODLE_INTERNAL')) {
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die('This is a standalone utility that should not be included by any other Moodle code.');
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// Exceptions //////////////////////////////////////////////////////////////////
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class invalid_coding_exception extends Exception {}
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class missing_option_exception extends Exception {}
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class invalid_option_exception extends Exception {}
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class unauthorized_access_exception extends Exception {}
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class download_file_exception extends Exception {}
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class backup_folder_exception extends Exception {}
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class zip_exception extends Exception {}
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class filesystem_exception extends Exception {}
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class checksum_exception extends Exception {}
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// Various support classes /////////////////////////////////////////////////////
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* Base class implementing the singleton pattern using late static binding feature.
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* @copyright 2012 David Mudrak <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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abstract class singleton_pattern {
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/** @var array singleton_pattern instances */
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protected static $singletoninstances = array();
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* Factory method returning the singleton instance.
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* Subclasses may want to override the {@link self::initialize()} method that is
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* called right after their instantiation.
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* @return mixed the singleton instance
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final public static function instance() {
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$class = get_called_class();
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if (!isset(static::$singletoninstances[$class])) {
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static::$singletoninstances[$class] = new static();
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static::$singletoninstances[$class]->initialize();
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return static::$singletoninstances[$class];
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* Optional post-instantiation code.
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protected function initialize() {
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// Do nothing in this base class.
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* Direct instantiation not allowed, use the factory method {@link instance()}
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final protected function __construct() {
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* Sorry, this is singleton.
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final protected function __clone() {
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// User input handling /////////////////////////////////////////////////////////
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* Provides access to the script options.
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* Implements the delegate pattern by dispatching the calls to appropriate
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* helper class (CLI or HTTP).
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* @copyright 2012 David Mudrak <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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class input_manager extends singleton_pattern {
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const TYPE_FILE = 'file'; // File name
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const TYPE_FLAG = 'flag'; // No value, just a flag (switch)
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const TYPE_INT = 'int'; // Integer
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const TYPE_PATH = 'path'; // Full path to a file or a directory
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const TYPE_RAW = 'raw'; // Raw value, keep as is
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const TYPE_URL = 'url'; // URL to a file
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const TYPE_PLUGIN = 'plugin'; // Plugin name
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const TYPE_MD5 = 'md5'; // MD5 hash
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/** @var input_cli_provider|input_http_provider the provider of the input */
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protected $inputprovider = null;
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* Returns the value of an option passed to the script.
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* If the caller passes just the $name, the requested argument is considered
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* required. The caller may specify the second argument which then
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* makes the argument optional with the given default value.
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* If the type of the $name option is TYPE_FLAG (switch), this method returns
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* true if the flag has been passed or false if it was not. Specifying the
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* default value makes no sense in this case and leads to invalid coding exception.
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* The array options are not supported.
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* @example $filename = $input->get_option('f');
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* @example $filename = $input->get_option('filename');
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* @example if ($input->get_option('verbose')) { ... }
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* @param string $name
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public function get_option($name, $default = 'provide_default_value_explicitly') {
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$this->validate_option_name($name);
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$info = $this->get_option_info($name);
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if ($info->type === input_manager::TYPE_FLAG) {
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return $this->inputprovider->has_option($name);
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if (func_num_args() == 1) {
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return $this->get_required_option($name);
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return $this->get_optional_option($name, $default);
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* Returns the meta-information about the given option.
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* @param string|null $name short or long option name, defaults to returning the list of all
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* @return array|object|false array with all, object with the specific option meta-information or false of no such an option
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public function get_option_info($name=null) {
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$supportedoptions = array(
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array('', 'passfile', input_manager::TYPE_FILE, 'File name of the passphrase file (HTTP access only)'),
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array('', 'password', input_manager::TYPE_RAW, 'Session passphrase (HTTP access only)'),
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array('', 'proxy', input_manager::TYPE_RAW, 'HTTP proxy host and port (e.g. \'our.proxy.edu:8888\')'),
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array('', 'proxytype', input_manager::TYPE_RAW, 'Proxy type (HTTP or SOCKS5)'),
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array('', 'proxyuserpwd', input_manager::TYPE_RAW, 'Proxy username and password (e.g. \'username:password\')'),
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array('', 'returnurl', input_manager::TYPE_URL, 'Return URL (HTTP access only)'),
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array('d', 'dataroot', input_manager::TYPE_PATH, 'Full path to the dataroot (moodledata) directory'),
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array('h', 'help', input_manager::TYPE_FLAG, 'Prints usage information'),
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array('i', 'install', input_manager::TYPE_FLAG, 'Installation mode'),
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array('m', 'md5', input_manager::TYPE_MD5, 'Expected MD5 hash of the ZIP package to deploy'),
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array('n', 'name', input_manager::TYPE_PLUGIN, 'Plugin name (the name of its folder)'),
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array('p', 'package', input_manager::TYPE_URL, 'URL to the ZIP package to deploy'),
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array('r', 'typeroot', input_manager::TYPE_PATH, 'Full path of the container for this plugin type'),
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array('u', 'upgrade', input_manager::TYPE_FLAG, 'Upgrade mode'),
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if (is_null($name)) {
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foreach ($supportedoptions as $optioninfo) {
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$info = new stdClass();
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$info->shortname = $optioninfo[0];
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$info->longname = $optioninfo[1];
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$info->type = $optioninfo[2];
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$info->desc = $optioninfo[3];
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foreach ($supportedoptions as $optioninfo) {
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if (strlen($name) == 1) {
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// Search by the short option name
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if ($optioninfo[0] === $name) {
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$found = $optioninfo;
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// Search by the long option name
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if ($optioninfo[1] === $name) {
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$found = $optioninfo;
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$info = new stdClass();
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$info->shortname = $found[0];
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$info->longname = $found[1];
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$info->type = $found[2];
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$info->desc = $found[3];
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* Casts the value to the given type.
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* @param mixed $raw the raw value
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* @param string $type the expected value type, e.g. {@link input_manager::TYPE_INT}
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public function cast_value($raw, $type) {
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if (is_array($raw)) {
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throw new invalid_coding_exception('Unsupported array option.');
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} else if (is_object($raw)) {
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throw new invalid_coding_exception('Unsupported object option.');
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case input_manager::TYPE_FILE:
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$raw = preg_replace('~[[:cntrl:]]|[&<>"`\|\':\\\\/]~u', '', $raw);
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$raw = preg_replace('~\.\.+~', '', $raw);
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case input_manager::TYPE_FLAG:
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case input_manager::TYPE_INT:
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case input_manager::TYPE_PATH:
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if (strpos($raw, '~') !== false) {
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throw new invalid_option_exception('Using the tilde (~) character in paths is not supported');
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$colonpos = strpos($raw, ':');
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if ($colonpos !== false) {
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if ($colonpos !== 1 or strrpos($raw, ':') !== 1) {
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throw new invalid_option_exception('Using the colon (:) character in paths is supported for Windows drive labels only.');
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if (preg_match('/^[a-zA-Z]:/', $raw) !== 1) {
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throw new invalid_option_exception('Using the colon (:) character in paths is supported for Windows drive labels only.');
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$raw = str_replace('\\', '/', $raw);
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$raw = preg_replace('~[[:cntrl:]]|[&<>"`\|\']~u', '', $raw);
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$raw = preg_replace('~\.\.+~', '', $raw);
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$raw = preg_replace('~//+~', '/', $raw);
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$raw = preg_replace('~/(\./)+~', '/', $raw);
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case input_manager::TYPE_RAW:
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case input_manager::TYPE_URL:
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$regex = '^(https?|ftp)\:\/\/'; // protocol
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$regex .= '([a-z0-9+!*(),;?&=\$_.-]+(\:[a-z0-9+!*(),;?&=\$_.-]+)?@)?'; // optional user and password
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$regex .= '[a-z0-9+\$_-]+(\.[a-z0-9+\$_-]+)*'; // hostname or IP (one word like http://localhost/ allowed)
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$regex .= '(\:[0-9]{2,5})?'; // port (optional)
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$regex .= '(\/([a-z0-9+\$_-]\.?)+)*\/?'; // path to the file
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$regex .= '(\?[a-z+&\$_.-][a-z0-9;:@/&%=+\$_.-]*)?'; // HTTP params
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if (preg_match('#'.$regex.'#i', $raw)) {
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throw new invalid_option_exception('Not a valid URL');
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case input_manager::TYPE_PLUGIN:
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if (!preg_match('/^[a-z][a-z0-9_]*[a-z0-9]$/', $raw)) {
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throw new invalid_option_exception('Invalid plugin name');
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if (strpos($raw, '__') !== false) {
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throw new invalid_option_exception('Invalid plugin name');
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case input_manager::TYPE_MD5:
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if (!preg_match('/^[a-f0-9]{32}$/', $raw)) {
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throw new invalid_option_exception('Invalid MD5 hash format');
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throw new invalid_coding_exception('Unknown option type.');
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* Picks the appropriate helper class to delegate calls to.
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protected function initialize() {
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if (PHP_SAPI === 'cli') {
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$this->inputprovider = input_cli_provider::instance();
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$this->inputprovider = input_http_provider::instance();
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// End of external API
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* Validates the parameter name.
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* @param string $name
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* @throws invalid_coding_exception
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protected function validate_option_name($name) {
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throw new invalid_coding_exception('Invalid empty option name.');
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$meta = $this->get_option_info($name);
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throw new invalid_coding_exception('Invalid option name: '.$name);
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* Returns cleaned option value or throws exception.
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* @param string $name the name of the parameter
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* @param string $type the parameter type, e.g. {@link input_manager::TYPE_INT}
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protected function get_required_option($name) {
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if ($this->inputprovider->has_option($name)) {
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return $this->inputprovider->get_option($name);
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throw new missing_option_exception('Missing required option: '.$name);
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* Returns cleaned option value or the default value
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* @param string $name the name of the parameter
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* @param string $type the parameter type, e.g. {@link input_manager::TYPE_INT}
398
* @param mixed $default the default value.
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protected function get_optional_option($name, $default) {
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if ($this->inputprovider->has_option($name)) {
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return $this->inputprovider->get_option($name);
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* Base class for input providers.
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* @copyright 2012 David Mudrak <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
417
abstract class input_provider extends singleton_pattern {
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/** @var array list of all passed valid options */
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protected $options = array();
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* Returns the casted value of the option.
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* @param string $name option name
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* @throws invalid_coding_exception if the option has not been passed
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* @return mixed casted value of the option
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public function get_option($name) {
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if (!$this->has_option($name)) {
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throw new invalid_coding_exception('Option not passed: '.$name);
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return $this->options[$name];
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* Was the given option passed?
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* @param string $name optionname
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public function has_option($name) {
445
return array_key_exists($name, $this->options);
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* Initializes the input provider.
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protected function initialize() {
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$this->populate_options();
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// End of external API
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* Parses and validates all supported options passed to the script.
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protected function populate_options() {
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$input = input_manager::instance();
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$raw = $this->parse_raw_options();
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foreach ($raw as $k => $v) {
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if (is_array($v) or is_object($v)) {
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$info = $input->get_option_info($k);
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$casted = $input->cast_value($v, $info->type);
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if (!empty($info->shortname)) {
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$cooked[$info->shortname] = $casted;
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if (!empty($info->longname)) {
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$cooked[$info->longname] = $casted;
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// Store the options.
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$this->options = $cooked;
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* Provides access to the script options passed via CLI.
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* @copyright 2012 David Mudrak <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
499
class input_cli_provider extends input_provider {
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* Parses raw options passed to the script.
504
* @return array as returned by getopt()
506
protected function parse_raw_options() {
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$input = input_manager::instance();
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// Signatures of some in-built PHP functions are just crazy, aren't they.
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foreach ($input->get_option_info() as $option) {
515
if ($option->type === input_manager::TYPE_FLAG) {
516
// No value expected for this option.
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$short .= $option->shortname;
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$long[] = $option->longname;
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// A value expected for the option, all considered as optional.
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$short .= empty($option->shortname) ? '' : $option->shortname.'::';
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$long[] = empty($option->longname) ? '' : $option->longname.'::';
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return getopt($short, $long);
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* Provides access to the script options passed via HTTP request.
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* @copyright 2012 David Mudrak <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
537
class input_http_provider extends input_provider {
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* Parses raw options passed to the script.
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* @return array of raw values passed via HTTP request
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protected function parse_raw_options() {
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// Output handling /////////////////////////////////////////////////////////////
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* Provides output operations.
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* @copyright 2012 David Mudrak <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
558
class output_manager extends singleton_pattern {
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/** @var output_cli_provider|output_http_provider the provider of the output functionality */
561
protected $outputprovider = null;
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* Magic method triggered when invoking an inaccessible method.
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* @param string $name method name
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* @param array $arguments method arguments
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public function __call($name, array $arguments = array()) {
570
call_user_func_array(array($this->outputprovider, $name), $arguments);
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* Picks the appropriate helper class to delegate calls to.
576
protected function initialize() {
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if (PHP_SAPI === 'cli') {
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$this->outputprovider = output_cli_provider::instance();
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$this->outputprovider = output_http_provider::instance();
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* Base class for all output providers.
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* @copyright 2012 David Mudrak <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
592
abstract class output_provider extends singleton_pattern {
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* Provides output to the command line.
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* @copyright 2012 David Mudrak <david@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
601
class output_cli_provider extends output_provider {
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* Prints help information in CLI mode.
606
public function help() {
608
$this->outln('mdeploy.php - Moodle (http://moodle.org) deployment utility');
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$this->outln('Usage: $ sudo -u apache php mdeploy.php [options]');
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$input = input_manager::instance();
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foreach($input->get_option_info() as $info) {
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if (!empty($info->shortname)) {
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$option[] = '-'.$info->shortname;
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if (!empty($info->longname)) {
619
$option[] = '--'.$info->longname;
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$this->outln(sprintf('%-20s %s', implode(', ', $option), $info->desc));
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// End of external API
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* Writes a text to the STDOUT followed by a new line character.
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* @param string $text text to print
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protected function outln($text='') {
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fputs(STDOUT, $text.PHP_EOL);
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* Provides HTML output as a part of HTTP response.
641
* @copyright 2012 David Mudrak <david@moodle.com>
642
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
644
class output_http_provider extends output_provider {
647
* Prints help on the script usage.
649
public function help() {
650
// No help available via HTTP
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* Display the information about uncaught exception
656
* @param Exception $e uncaught exception
658
public function exception(Exception $e) {
660
$docslink = 'http://docs.moodle.org/en/admin/mdeploy/'.get_class($e);
661
$this->start_output();
662
echo('<h1>Oops! It did it again</h1>');
663
echo('<p><strong>Moodle deployment utility had a trouble with your request.
664
See <a href="'.$docslink.'">the docs page</a> and the debugging information for more details.</strong></p>');
666
echo exception_handlers::format_exception_info($e);
671
// End of external API
674
* Produce the HTML page header
676
protected function start_output() {
677
echo '<!doctype html>
680
<meta charset="utf-8">
681
<style type="text/css">
682
body {background-color:#666;font-family:"DejaVu Sans","Liberation Sans",Freesans,sans-serif;}
683
h1 {text-align:center;}
684
pre {white-space: pre-wrap;}
685
#page {background-color:#eee;width:1024px;margin:5em auto;border:3px solid #333;border-radius: 15px;padding:1em;}
693
* Produce the HTML page footer
695
protected function end_output() {
696
echo '</div></body></html>';
700
// The main class providing all the functionality //////////////////////////////
703
* The actual worker class implementing the main functionality of the script.
705
* @copyright 2012 David Mudrak <david@moodle.com>
706
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
708
class worker extends singleton_pattern {
710
const EXIT_OK = 0; // Success exit code.
711
const EXIT_HELP = 1; // Explicit help required.
712
const EXIT_UNKNOWN_ACTION = 127; // Neither -i nor -u provided.
714
/** @var input_manager */
715
protected $input = null;
717
/** @var output_manager */
718
protected $output = null;
720
/** @var int the most recent cURL error number, zero for no error */
721
private $curlerrno = null;
723
/** @var string the most recent cURL error message, empty string for no error */
724
private $curlerror = null;
726
/** @var array|false the most recent cURL request info, if it was successful */
727
private $curlinfo = null;
729
/** @var string the full path to the log file */
730
private $logfile = null;
733
* Main - the one that actually does something
735
public function execute() {
737
$this->log('=== MDEPLOY EXECUTION START ===');
739
// Authorize access. None in CLI. Passphrase in HTTP.
742
// Asking for help in the CLI mode.
743
if ($this->input->get_option('help')) {
744
$this->output->help();
745
$this->done(self::EXIT_HELP);
748
if ($this->input->get_option('upgrade')) {
749
$this->log('Plugin upgrade requested');
751
// Fetch the ZIP file into a temporary location.
752
$source = $this->input->get_option('package');
753
$target = $this->target_location($source);
754
$this->log('Downloading package '.$source);
756
if ($this->download_file($source, $target)) {
757
$this->log('Package downloaded into '.$target);
759
$this->log('cURL error ' . $this->curlerrno . ' ' . $this->curlerror);
760
$this->log('Unable to download the file from ' . $source . ' into ' . $target);
761
throw new download_file_exception('Unable to download the package');
764
// Compare MD5 checksum of the ZIP file
765
$md5remote = $this->input->get_option('md5');
766
$md5local = md5_file($target);
768
if ($md5local !== $md5remote) {
769
$this->log('MD5 checksum failed. Expected: '.$md5remote.' Got: '.$md5local);
770
throw new checksum_exception('MD5 checksum failed');
772
$this->log('MD5 checksum ok');
774
// Backup the current version of the plugin
775
$plugintyperoot = $this->input->get_option('typeroot');
776
$pluginname = $this->input->get_option('name');
777
$sourcelocation = $plugintyperoot.'/'.$pluginname;
778
$backuplocation = $this->backup_location($sourcelocation);
780
$this->log('Current plugin code location: '.$sourcelocation);
781
$this->log('Moving the current code into archive: '.$backuplocation);
783
// We don't want to touch files unless we are pretty sure it would be all ok.
784
if (!$this->move_directory_source_precheck($sourcelocation)) {
785
throw new backup_folder_exception('Unable to backup the current version of the plugin (source precheck failed)');
787
if (!$this->move_directory_target_precheck($backuplocation)) {
788
throw new backup_folder_exception('Unable to backup the current version of the plugin (backup precheck failed)');
791
// Looking good, let's try it.
792
if (!$this->move_directory($sourcelocation, $backuplocation, true)) {
793
throw new backup_folder_exception('Unable to backup the current version of the plugin (moving failed)');
796
// Unzip the plugin package file into the target location.
797
$this->unzip_plugin($target, $plugintyperoot, $sourcelocation, $backuplocation);
798
$this->log('Package successfully extracted');
800
// Redirect to the given URL (in HTTP) or exit (in CLI).
803
} else if ($this->input->get_option('install')) {
804
$this->log('Plugin installation requested');
806
$plugintyperoot = $this->input->get_option('typeroot');
807
$pluginname = $this->input->get_option('name');
808
$source = $this->input->get_option('package');
809
$md5remote = $this->input->get_option('md5');
811
// Check if the plugin location if available for us.
812
$pluginlocation = $plugintyperoot.'/'.$pluginname;
814
$this->log('New plugin code location: '.$pluginlocation);
816
if (file_exists($pluginlocation)) {
817
throw new filesystem_exception('Unable to prepare the plugin location (directory already exists)');
820
if (!$this->create_directory_precheck($pluginlocation)) {
821
throw new filesystem_exception('Unable to prepare the plugin location (cannot create new directory)');
824
// Fetch the ZIP file into a temporary location.
825
$target = $this->target_location($source);
826
$this->log('Downloading package '.$source);
828
if ($this->download_file($source, $target)) {
829
$this->log('Package downloaded into '.$target);
831
$this->log('cURL error ' . $this->curlerrno . ' ' . $this->curlerror);
832
$this->log('Unable to download the file');
833
throw new download_file_exception('Unable to download the package');
836
// Compare MD5 checksum of the ZIP file
837
$md5local = md5_file($target);
839
if ($md5local !== $md5remote) {
840
$this->log('MD5 checksum failed. Expected: '.$md5remote.' Got: '.$md5local);
841
throw new checksum_exception('MD5 checksum failed');
843
$this->log('MD5 checksum ok');
845
// Unzip the plugin package file into the plugin location.
846
$this->unzip_plugin($target, $plugintyperoot, $pluginlocation, false);
847
$this->log('Package successfully extracted');
849
// Redirect to the given URL (in HTTP) or exit (in CLI).
853
// Print help in CLI by default.
854
$this->output->help();
855
$this->done(self::EXIT_UNKNOWN_ACTION);
859
* Attempts to log a thrown exception
861
* @param Exception $e uncaught exception
863
public function log_exception(Exception $e) {
864
$this->log($e->__toString());
868
* Initialize the worker class.
870
protected function initialize() {
871
$this->input = input_manager::instance();
872
$this->output = output_manager::instance();
875
// End of external API
878
* Finish this script execution.
880
* @param int $exitcode
882
protected function done($exitcode = self::EXIT_OK) {
884
if (PHP_SAPI === 'cli') {
888
$returnurl = $this->input->get_option('returnurl');
889
$this->redirect($returnurl);
895
* Authorize access to the script.
897
* In CLI mode, the access is automatically authorized. In HTTP mode, the
898
* passphrase submitted via the request params must match the contents of the
899
* file, the name of which is passed in another parameter.
901
* @throws unauthorized_access_exception
903
protected function authorize() {
905
if (PHP_SAPI === 'cli') {
906
$this->log('Successfully authorized using the CLI SAPI');
910
$dataroot = $this->input->get_option('dataroot');
911
$passfile = $this->input->get_option('passfile');
912
$password = $this->input->get_option('password');
914
$passpath = $dataroot.'/mdeploy/auth/'.$passfile;
916
if (!is_readable($passpath)) {
917
throw new unauthorized_access_exception('Unable to read the passphrase file.');
920
$stored = file($passpath, FILE_IGNORE_NEW_LINES);
922
// "This message will self-destruct in five seconds." -- Mission Commander Swanbeck, Mission: Impossible II
925
if (is_readable($passpath)) {
926
throw new unauthorized_access_exception('Unable to remove the passphrase file.');
929
if (count($stored) < 2) {
930
throw new unauthorized_access_exception('Invalid format of the passphrase file.');
933
if (time() - (int)$stored[1] > 30 * 60) {
934
throw new unauthorized_access_exception('Passphrase timeout.');
937
if (strlen($stored[0]) < 24) {
938
throw new unauthorized_access_exception('Session passphrase not long enough.');
941
if ($password !== $stored[0]) {
942
throw new unauthorized_access_exception('Session passphrase does not match the stored one.');
945
$this->log('Successfully authorized using the passphrase file');
949
* Returns the full path to the log file.
953
protected function log_location() {
955
if (!is_null($this->logfile)) {
956
return $this->logfile;
959
$dataroot = $this->input->get_option('dataroot', '');
961
if (empty($dataroot)) {
962
$this->logfile = false;
963
return $this->logfile;
966
$myroot = $dataroot.'/mdeploy';
968
if (!is_dir($myroot)) {
969
mkdir($myroot, 02777, true);
972
$this->logfile = $myroot.'/mdeploy.log';
973
return $this->logfile;
977
* Choose the target location for the given ZIP's URL.
979
* @param string $source URL
982
protected function target_location($source) {
984
$dataroot = $this->input->get_option('dataroot');
985
$pool = $dataroot.'/mdeploy/var';
987
if (!is_dir($pool)) {
988
mkdir($pool, 02777, true);
991
$target = $pool.'/'.md5($source);
994
while (file_exists($target.'.'.$suffix.'.zip')) {
998
return $target.'.'.$suffix.'.zip';
1002
* Choose the location of the current plugin folder backup
1004
* @param string $path full path to the current folder
1007
protected function backup_location($path) {
1009
$dataroot = $this->input->get_option('dataroot');
1010
$pool = $dataroot.'/mdeploy/archive';
1012
if (!is_dir($pool)) {
1013
mkdir($pool, 02777, true);
1016
$target = $pool.'/'.basename($path).'_'.time();
1019
while (file_exists($target.'.'.$suffix)) {
1023
return $target.'.'.$suffix;
1027
* Downloads the given file into the given destination.
1029
* This is basically a simplified version of {@link download_file_content()} from
1030
* Moodle itself, tuned for fetching files from moodle.org servers.
1032
* @param string $source file url starting with http(s)://
1033
* @param string $target store the downloaded content to this file (full path)
1034
* @return bool true on success, false otherwise
1035
* @throws download_file_exception
1037
protected function download_file($source, $target) {
1039
$newlines = array("\r", "\n");
1040
$source = str_replace($newlines, '', $source);
1041
if (!preg_match('|^https?://|i', $source)) {
1042
throw new download_file_exception('Unsupported transport protocol.');
1044
if (!$ch = curl_init($source)) {
1045
$this->log('Unable to init cURL.');
1049
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); // verify the peer's certificate
1050
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); // check the existence of a common name and also verify that it matches the hostname provided
1051
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // return the transfer as a string
1052
curl_setopt($ch, CURLOPT_HEADER, false); // don't include the header in the output
1053
curl_setopt($ch, CURLOPT_TIMEOUT, 3600);
1054
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20); // nah, moodle.org is never unavailable! :-p
1055
curl_setopt($ch, CURLOPT_URL, $source);
1056
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // Allow redirection, we trust in ssl.
1057
curl_setopt($ch, CURLOPT_MAXREDIRS, 5);
1059
if ($cacertfile = $this->get_cacert()) {
1060
// Do not use CA certs provided by the operating system. Instead,
1061
// use this CA cert to verify the ZIP provider.
1062
$this->log('Using custom CA certificate '.$cacertfile);
1063
curl_setopt($ch, CURLOPT_CAINFO, $cacertfile);
1065
$this->log('Using operating system CA certificates.');
1068
$proxy = $this->input->get_option('proxy', false);
1069
if (!empty($proxy)) {
1070
curl_setopt($ch, CURLOPT_PROXY, $proxy);
1072
$proxytype = $this->input->get_option('proxytype', false);
1073
if (strtoupper($proxytype) === 'SOCKS5') {
1074
$this->log('Using SOCKS5 proxy');
1075
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
1076
} else if (!empty($proxytype)) {
1077
$this->log('Using HTTP proxy');
1078
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
1079
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, false);
1082
$proxyuserpwd = $this->input->get_option('proxyuserpwd', false);
1083
if (!empty($proxyuserpwd)) {
1084
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyuserpwd);
1085
curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_BASIC | CURLAUTH_NTLM);
1089
$targetfile = fopen($target, 'w');
1092
throw new download_file_exception('Unable to create local file '.$target);
1095
curl_setopt($ch, CURLOPT_FILE, $targetfile);
1097
$result = curl_exec($ch);
1099
// try to detect encoding problems
1100
if ((curl_errno($ch) == 23 or curl_errno($ch) == 61) and defined('CURLOPT_ENCODING')) {
1101
curl_setopt($ch, CURLOPT_ENCODING, 'none');
1102
$result = curl_exec($ch);
1105
fclose($targetfile);
1107
$this->curlerrno = curl_errno($ch);
1108
$this->curlerror = curl_error($ch);
1109
$this->curlinfo = curl_getinfo($ch);
1111
if (!$result or $this->curlerrno) {
1112
$this->log('Curl Error.');
1115
} else if (is_array($this->curlinfo) and (empty($this->curlinfo['http_code']) or ($this->curlinfo['http_code'] != 200))) {
1116
$this->log('Curl remote error.');
1117
$this->log(print_r($this->curlinfo,true));
1125
* Get the location of ca certificates.
1126
* @return string absolute file path or empty if default used
1128
protected function get_cacert() {
1129
$dataroot = $this->input->get_option('dataroot');
1131
// Bundle in dataroot always wins.
1132
if (is_readable($dataroot.'/moodleorgca.crt')) {
1133
return realpath($dataroot.'/moodleorgca.crt');
1136
// Next comes the default from php.ini
1137
$cacert = ini_get('curl.cainfo');
1138
if (!empty($cacert) and is_readable($cacert)) {
1139
return realpath($cacert);
1142
// Windows PHP does not have any certs, we need to use something.
1143
if (stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin')) {
1144
if (is_readable(__DIR__.'/lib/cacert.pem')) {
1145
return realpath(__DIR__.'/lib/cacert.pem');
1149
// Use default, this should work fine on all properly configured *nix systems.
1156
* @param string $message
1158
protected function log($message) {
1160
$logpath = $this->log_location();
1162
if (empty($logpath)) {
1163
// no logging available
1167
$f = fopen($logpath, 'ab');
1170
throw new filesystem_exception('Unable to open the log file for appending');
1173
$message = $this->format_log_message($message);
1175
fwrite($f, $message);
1181
* Prepares the log message for writing into the file
1183
* @param string $msg
1186
protected function format_log_message($msg) {
1189
$timestamp = date("Y-m-d H:i:s");
1191
return $timestamp . ' '. $msg . PHP_EOL;
1195
* Checks to see if the given source could be safely moved into a new location
1197
* @param string $source full path to the existing directory
1200
protected function move_directory_source_precheck($source) {
1202
if (!is_writable($source)) {
1206
if (is_dir($source)) {
1207
$handle = opendir($source);
1214
while ($filename = readdir($handle)) {
1215
$sourcepath = $source.'/'.$filename;
1217
if ($filename === '.' or $filename === '..') {
1221
if (is_dir($sourcepath)) {
1222
$result = $result && $this->move_directory_source_precheck($sourcepath);
1225
$result = $result && is_writable($sourcepath);
1235
* Checks to see if a source folder could be safely moved into the given new location
1237
* @param string $destination full path to the new expected location of a folder
1240
protected function move_directory_target_precheck($target) {
1242
// Check if the target folder does not exist yet, can be created
1243
// and removed again.
1244
$result = $this->create_directory_precheck($target);
1246
// At the moment, it seems to be enough to check. We may want to add
1247
// more steps in the future.
1253
* Make sure the given directory can be created (and removed)
1255
* @param string $path full path to the folder
1258
protected function create_directory_precheck($path) {
1260
if (file_exists($path)) {
1264
$result = mkdir($path, 02777) && rmdir($path);
1270
* Moves the given source into a new location recursively
1272
* The target location can not exist.
1274
* @param string $source full path to the existing directory
1275
* @param string $destination full path to the new location of the folder
1276
* @param bool $keepsourceroot should the root of the $source be kept or removed at the end
1279
protected function move_directory($source, $target, $keepsourceroot = false) {
1281
if (file_exists($target)) {
1282
throw new filesystem_exception('Unable to move the directory - target location already exists');
1285
return $this->move_directory_into($source, $target, $keepsourceroot);
1289
* Moves the given source into a new location recursively
1291
* If the target already exists, files are moved into it. The target is created otherwise.
1293
* @param string $source full path to the existing directory
1294
* @param string $destination full path to the new location of the folder
1295
* @param bool $keepsourceroot should the root of the $source be kept or removed at the end
1298
protected function move_directory_into($source, $target, $keepsourceroot = false) {
1300
if (is_dir($source)) {
1301
$handle = opendir($source);
1303
throw new filesystem_exception('Source location is not a directory');
1306
if (is_dir($target)) {
1309
$result = mkdir($target, 02777);
1312
while ($filename = readdir($handle)) {
1313
$sourcepath = $source.'/'.$filename;
1314
$targetpath = $target.'/'.$filename;
1316
if ($filename === '.' or $filename === '..') {
1320
if (is_dir($sourcepath)) {
1321
$result = $result && $this->move_directory($sourcepath, $targetpath, false);
1324
$result = $result && rename($sourcepath, $targetpath);
1330
if (!$keepsourceroot) {
1331
$result = $result && rmdir($source);
1340
* Deletes the given directory recursively
1342
* @param string $path full path to the directory
1343
* @param bool $keeppathroot should the root of the $path be kept (i.e. remove the content only) or removed too
1346
protected function remove_directory($path, $keeppathroot = false) {
1350
if (!file_exists($path)) {
1354
if (is_dir($path)) {
1355
$handle = opendir($path);
1357
throw new filesystem_exception('Given path is not a directory');
1360
while ($filename = readdir($handle)) {
1361
$filepath = $path.'/'.$filename;
1363
if ($filename === '.' or $filename === '..') {
1367
if (is_dir($filepath)) {
1368
$result = $result && $this->remove_directory($filepath, false);
1371
$result = $result && unlink($filepath);
1377
if (!$keeppathroot) {
1378
$result = $result && rmdir($path);
1387
* Unzip the file obtained from the Plugins directory to this site
1389
* @param string $ziplocation full path to the ZIP file
1390
* @param string $plugintyperoot full path to the plugin's type location
1391
* @param string $expectedlocation expected full path to the plugin after it is extracted
1392
* @param string|bool $backuplocation location of the previous version of the plugin or false for no backup
1394
protected function unzip_plugin($ziplocation, $plugintyperoot, $expectedlocation, $backuplocation) {
1396
$zip = new ZipArchive();
1397
$result = $zip->open($ziplocation);
1399
if ($result !== true) {
1400
if ($backuplocation !== false) {
1401
$this->move_directory($backuplocation, $expectedlocation);
1403
throw new zip_exception('Unable to open the zip package');
1406
// Make sure that the ZIP has expected structure
1407
$pluginname = basename($expectedlocation);
1408
for ($i = 0; $i < $zip->numFiles; $i++) {
1409
$stat = $zip->statIndex($i);
1410
$filename = $stat['name'];
1411
$filename = explode('/', $filename);
1412
if ($filename[0] !== $pluginname) {
1414
throw new zip_exception('Invalid structure of the zip package');
1418
if (!$zip->extractTo($plugintyperoot)) {
1420
$this->remove_directory($expectedlocation, true); // just in case something was created
1421
if ($backuplocation !== false) {
1422
$this->move_directory_into($backuplocation, $expectedlocation);
1424
throw new zip_exception('Unable to extract the zip package');
1428
unlink($ziplocation);
1432
* Redirect the browser
1434
* @todo check if there has been some output yet
1435
* @param string $url
1437
protected function redirect($url) {
1438
header('Location: '.$url);
1444
* Provides exception handlers for this script
1446
class exception_handlers {
1449
* Sets the exception handler
1452
* @param string $handler name
1454
public static function set_handler($handler) {
1456
if (PHP_SAPI === 'cli') {
1457
// No custom handler available for CLI mode.
1458
set_exception_handler(null);
1462
set_exception_handler('exception_handlers::'.$handler.'_exception_handler');
1466
* Returns the text describing the thrown exception
1468
* By default, PHP displays full path to scripts when the exception is thrown. In order to prevent
1469
* sensitive information leak (and yes, the path to scripts at a web server _is_ sensitive information)
1470
* the path to scripts is removed from the message.
1472
* @param Exception $e thrown exception
1475
public static function format_exception_info(Exception $e) {
1477
$mydir = dirname(__FILE__).'/';
1478
$text = $e->__toString();
1479
$text = str_replace($mydir, '', $text);
1484
* Very basic exception handler
1486
* @param Exception $e uncaught exception
1488
public static function bootstrap_exception_handler(Exception $e) {
1489
echo('<h1>Oops! It did it again</h1>');
1490
echo('<p><strong>Moodle deployment utility had a trouble with your request. See the debugging information for more details.</strong></p>');
1492
echo self::format_exception_info($e);
1497
* Default exception handler
1499
* When this handler is used, input_manager and output_manager singleton instances already
1500
* exist in the memory and can be used.
1502
* @param Exception $e uncaught exception
1504
public static function default_exception_handler(Exception $e) {
1506
$worker = worker::instance();
1507
$worker->log_exception($e);
1509
$output = output_manager::instance();
1510
$output->exception($e);
1514
////////////////////////////////////////////////////////////////////////////////
1516
// Check if the script is actually executed or if it was just included by someone
1517
// else - typically by the PHPUnit. This is a PHP alternative to the Python's
1518
// if __name__ == '__main__'
1519
if (!debug_backtrace()) {
1520
// We are executed by the SAPI.
1521
exception_handlers::set_handler('bootstrap');
1522
// Initialize the worker class to actually make the job.
1523
$worker = worker::instance();
1524
exception_handlers::set_handler('default');
1526
// Lights, Camera, Action!
1530
// We are included - probably by some unit testing framework. Do nothing.