Enable reply/reply-all/forward buttons also in preview frame of message/rfc822

Aleksander Machniak

2016-03-28 46f7b7096450939fe03c95aa81ce06ae4bfca89d

 program/lib/Roundcube/rcube_plugin_api.php

@@ -1,6 +1,6 @@
<?php

/*
/**
 +-----------------------------------------------------------------------+
 | This file is part of the Roundcube Webmail client                     |
 | Copyright (C) 2008-2012, The Roundcube Dev Team                       |
@@ -34,51 +34,24 @@
    public $dir;
    public $url = 'plugins/';
    public $task = '';
    public $initialized = false;

    public $output;
    public $handlers = array();
    public $allowed_prefs = array();
    public $handlers              = array();
    public $allowed_prefs         = array();
    public $allowed_session_prefs = array();
    public $active_plugins        = array();

    protected $plugins = array();
    protected $tasks = array();
    protected $actions = array();
    protected $actionmap = array();
    protected $objectsmap = array();
    protected $plugins           = array();
    protected $plugins_initialized = array();
    protected $tasks             = array();
    protected $actions           = array();
    protected $actionmap         = array();
    protected $objectsmap        = array();
    protected $template_contents = array();
    protected $active_hook = false;
    protected $exec_stack        = array();
    protected $deprecated_hooks  = array();

    // Deprecated names of hooks, will be removed after 0.5-stable release
    protected $deprecated_hooks = array(
        'create_user'       => 'user_create',
        'kill_session'      => 'session_destroy',
        'upload_attachment' => 'attachment_upload',
        'save_attachment'   => 'attachment_save',
        'get_attachment'    => 'attachment_get',
        'cleanup_attachments' => 'attachments_cleanup',
        'display_attachment' => 'attachment_display',
        'remove_attachment' => 'attachment_delete',
        'outgoing_message_headers' => 'message_outgoing_headers',
        'outgoing_message_body' => 'message_outgoing_body',
        'address_sources'   => 'addressbooks_list',
        'get_address_book'  => 'addressbook_get',
        'create_contact'    => 'contact_create',
        'save_contact'      => 'contact_update',
        'contact_save'      => 'contact_update',
        'delete_contact'    => 'contact_delete',
        'manage_folders'    => 'folders_list',
        'list_mailboxes'    => 'mailboxes_list',
        'save_preferences'  => 'preferences_save',
        'user_preferences'  => 'preferences_list',
        'list_prefs_sections' => 'preferences_sections_list',
        'list_identities'   => 'identities_list',
        'create_identity'   => 'identity_create',
        'delete_identity'   => 'identity_delete',
        'save_identity'     => 'identity_update',
        'identity_save'     => 'identity_update',
        // to be removed after 0.8
        'imap_init'         => 'storage_init',
        'mailboxes_list'    => 'storage_folders',
        'imap_connect'      => 'storage_connect',
    );

    /**
     * This implements the 'singleton' design pattern
@@ -115,12 +88,21 @@
    {
        $this->task   = $task;
        $this->output = $app->output;

        // register an internal hook
        $this->register_hook('template_container', array($this, 'template_container_hook'));

        // maybe also register a shudown function which triggers
        // shutdown functions of all plugin objects

        foreach ($this->plugins as $plugin) {
            // ... task, request type and framed mode
            if (!$this->plugins_initialized[$plugin->ID] && !$this->filter($plugin)) {
                $plugin->init();
                $this->plugins_initialized[$plugin->ID] = $plugin;
            }
        }

        // we have finished initializing all plugins
        $this->initialized = true;
    }

    /**
@@ -166,11 +148,13 @@
    /**
     * Load the specified plugin
     *
     * @param string Plugin name
     * @param string  Plugin name
     * @param boolean Force loading of the plugin even if it doesn't match the filter
     * @param boolean Require loading of the plugin, error if it doesn't exist
     *
     * @return boolean True on success, false if not loaded or failure
     */
    public function load_plugin($plugin_name)
    public function load_plugin($plugin_name, $force = false, $require = true)
    {
        static $plugins_dir;

@@ -179,52 +163,75 @@
            $plugins_dir = unslashify($dir->path);
        }

        // plugin already loaded
        if ($this->plugins[$plugin_name] || class_exists($plugin_name, false)) {
            return true;
        }
        // plugin already loaded?
        if (!$this->plugins[$plugin_name]) {
            $fn = "$plugins_dir/$plugin_name/$plugin_name.php";

        $fn = $plugins_dir . DIRECTORY_SEPARATOR . $plugin_name
            . DIRECTORY_SEPARATOR . $plugin_name . '.php';
            if (!is_readable($fn)) {
                if ($require) {
                    rcube::raise_error(array('code' => 520, 'type' => 'php',
                        'file' => __FILE__, 'line' => __LINE__,
                        'message' => "Failed to load plugin file $fn"), true, false);
                }

        if (file_exists($fn)) {
            include $fn;
                return false;
            }

            if (!class_exists($plugin_name, false)) {
                include $fn;
            }

            // instantiate class if exists
            if (class_exists($plugin_name, false)) {
                $plugin = new $plugin_name($this);
                // check inheritance...
                if (is_subclass_of($plugin, 'rcube_plugin')) {
                    // ... task, request type and framed mode
                    if ((!$plugin->task || preg_match('/^('.$plugin->task.')$/i', $this->task))
                        && (!$plugin->noajax || (is_object($this->output) && $this->output->type == 'html'))
                        && (!$plugin->noframe || empty($_REQUEST['_framed']))
                    ) {
                        $plugin->init();
                        $this->plugins[$plugin_name] = $plugin;
                    }

                    if (!empty($plugin->allowed_prefs)) {
                        $this->allowed_prefs = array_merge($this->allowed_prefs, $plugin->allowed_prefs);
                    }

                    return true;
                }
            }
            else {
            if (!class_exists($plugin_name, false)) {
                rcube::raise_error(array('code' => 520, 'type' => 'php',
                    'file' => __FILE__, 'line' => __LINE__,
                    'message' => "No plugin class $plugin_name found in $fn"),
                    true, false);

                return false;
            }

            $plugin = new $plugin_name($this);
            $this->active_plugins[] = $plugin_name;

            // check inheritance...
            if (is_subclass_of($plugin, 'rcube_plugin')) {
                // call onload method on plugin if it exists.
                // this is useful if you want to be called early in the boot process
                if (method_exists($plugin, 'onload')) {
                    $plugin->onload();
                }

                if (!empty($plugin->allowed_prefs)) {
                    $this->allowed_prefs = array_merge($this->allowed_prefs, $plugin->allowed_prefs);
                }

                $this->plugins[$plugin_name] = $plugin;
            }
        }
        else {
            rcube::raise_error(array('code' => 520, 'type' => 'php',
                'file' => __FILE__, 'line' => __LINE__,
                'message' => "Failed to load plugin file $fn"), true, false);

        if ($plugin = $this->plugins[$plugin_name]) {
            // init a plugin only if $force is set or if we're called after initialization
            if (($force || $this->initialized) && !$this->plugins_initialized[$plugin_name] && ($force || !$this->filter($plugin))) {
                $plugin->init();
                $this->plugins_initialized[$plugin_name] = $plugin;
            }
        }

        return false;
        return true;
    }

    /**
     * check if we should prevent this plugin from initialising
     *
     * @param $plugin
     * @return bool
     */
    private function filter($plugin)
    {
        return ($plugin->noajax  && !(is_object($this->output) && $this->output->type == 'html'))
             || ($plugin->task && !preg_match('/^('.$plugin->task.')$/i', $this->task))
             || ($plugin->noframe && !empty($_REQUEST['_framed']));
    }

    /**
@@ -236,108 +243,134 @@
     */
    public function get_info($plugin_name)
    {
      static $composer_lock, $license_uris = array(
        'Apache'     => 'http://www.apache.org/licenses/LICENSE-2.0.html',
        'Apache-2'   => 'http://www.apache.org/licenses/LICENSE-2.0.html',
        'Apache-1'   => 'http://www.apache.org/licenses/LICENSE-1.0',
        'Apache-1.1' => 'http://www.apache.org/licenses/LICENSE-1.1',
        'GPL'        => 'http://www.gnu.org/licenses/gpl.html',
        'GPLv2'      => 'http://www.gnu.org/licenses/gpl-2.0.html',
        'GPL-2.0'    => 'http://www.gnu.org/licenses/gpl-2.0.html',
        'GPLv3'      => 'http://www.gnu.org/licenses/gpl-3.0.html',
        'GPL-3.0'    => 'http://www.gnu.org/licenses/gpl-3.0.html',
        'GPL-3.0+'   => 'http://www.gnu.org/licenses/gpl.html',
        'GPL-2.0+'   => 'http://www.gnu.org/licenses/gpl.html',
        'LGPL'       => 'http://www.gnu.org/licenses/lgpl.html',
        'LGPLv2'     => 'http://www.gnu.org/licenses/lgpl-2.0.html',
        'LGPLv2.1'   => 'http://www.gnu.org/licenses/lgpl-2.1.html',
        'LGPLv3'     => 'http://www.gnu.org/licenses/lgpl.html',
        'LGPL-2.0'   => 'http://www.gnu.org/licenses/lgpl-2.0.html',
        'LGPL-2.1'   => 'http://www.gnu.org/licenses/lgpl-2.1.html',
        'LGPL-3.0'   => 'http://www.gnu.org/licenses/lgpl.html',
        'LGPL-3.0+'  => 'http://www.gnu.org/licenses/lgpl.html',
        'BSD'          => 'http://opensource.org/licenses/bsd-license.html',
        'BSD-2-Clause' => 'http://opensource.org/licenses/BSD-2-Clause',
        'BSD-3-Clause' => 'http://opensource.org/licenses/BSD-3-Clause',
        'FreeBSD'      => 'http://opensource.org/licenses/BSD-2-Clause',
        'MIT'          => 'http://www.opensource.org/licenses/mit-license.php',
        'PHP'          => 'http://opensource.org/licenses/PHP-3.0',
        'PHP-3'        => 'http://www.php.net/license/3_01.txt',
        'PHP-3.0'      => 'http://www.php.net/license/3_0.txt',
        'PHP-3.01'     => 'http://www.php.net/license/3_01.txt',
      );
        static $composer_lock, $license_uris = array(
            'Apache'       => 'http://www.apache.org/licenses/LICENSE-2.0.html',
            'Apache-2'     => 'http://www.apache.org/licenses/LICENSE-2.0.html',
            'Apache-1'     => 'http://www.apache.org/licenses/LICENSE-1.0',
            'Apache-1.1'   => 'http://www.apache.org/licenses/LICENSE-1.1',
            'GPL'          => 'http://www.gnu.org/licenses/gpl.html',
            'GPLv2'        => 'http://www.gnu.org/licenses/gpl-2.0.html',
            'GPL-2.0'      => 'http://www.gnu.org/licenses/gpl-2.0.html',
            'GPLv3'        => 'http://www.gnu.org/licenses/gpl-3.0.html',
            'GPLv3+'       => 'http://www.gnu.org/licenses/gpl-3.0.html',
            'GPL-3.0'      => 'http://www.gnu.org/licenses/gpl-3.0.html',
            'GPL-3.0+'     => 'http://www.gnu.org/licenses/gpl.html',
            'GPL-2.0+'     => 'http://www.gnu.org/licenses/gpl.html',
            'AGPLv3'       => 'http://www.gnu.org/licenses/agpl.html',
            'AGPLv3+'      => 'http://www.gnu.org/licenses/agpl.html',
            'AGPL-3.0'     => 'http://www.gnu.org/licenses/agpl.html',
            'LGPL'         => 'http://www.gnu.org/licenses/lgpl.html',
            'LGPLv2'       => 'http://www.gnu.org/licenses/lgpl-2.0.html',
            'LGPLv2.1'     => 'http://www.gnu.org/licenses/lgpl-2.1.html',
            'LGPLv3'       => 'http://www.gnu.org/licenses/lgpl.html',
            'LGPL-2.0'     => 'http://www.gnu.org/licenses/lgpl-2.0.html',
            'LGPL-2.1'     => 'http://www.gnu.org/licenses/lgpl-2.1.html',
            'LGPL-3.0'     => 'http://www.gnu.org/licenses/lgpl.html',
            'LGPL-3.0+'    => 'http://www.gnu.org/licenses/lgpl.html',
            'BSD'          => 'http://opensource.org/licenses/bsd-license.html',
            'BSD-2-Clause' => 'http://opensource.org/licenses/BSD-2-Clause',
            'BSD-3-Clause' => 'http://opensource.org/licenses/BSD-3-Clause',
            'FreeBSD'      => 'http://opensource.org/licenses/BSD-2-Clause',
            'MIT'          => 'http://www.opensource.org/licenses/mit-license.php',
            'PHP'          => 'http://opensource.org/licenses/PHP-3.0',
            'PHP-3'        => 'http://www.php.net/license/3_01.txt',
            'PHP-3.0'      => 'http://www.php.net/license/3_0.txt',
            'PHP-3.01'     => 'http://www.php.net/license/3_01.txt',
        );

      $dir = dir($this->dir);
      $fn = unslashify($dir->path) . DIRECTORY_SEPARATOR . $plugin_name . DIRECTORY_SEPARATOR . $plugin_name . '.php';
      $info = false;
        $dir  = dir($this->dir);
        $fn   = unslashify($dir->path) . "/$plugin_name/$plugin_name.php";
        $info = false;

      if (!class_exists($plugin_name))
        include($fn);
        if (!class_exists($plugin_name, false)) {
            if (is_readable($fn)) {
                include($fn);
            }
            else {
                return false;
            }
        }

      if (class_exists($plugin_name))
        $info = $plugin_name::info();
        if (class_exists($plugin_name)) {
            $info = $plugin_name::info();
        }

      // fall back to composer.json file
      if (!$info) {
        $composer = INSTALL_PATH . "/plugins/$plugin_name/composer.json";
        if (file_exists($composer) && ($json = @json_decode(file_get_contents($composer), true))) {
          list($info['vendor'], $info['name']) = explode('/', $json['name']);
          $info['license'] = $json['license'];
          if ($license_uri = $license_uris[$info['license']])
        // fall back to composer.json file
        if (!$info) {
            $composer = INSTALL_PATH . "/plugins/$plugin_name/composer.json";
            if (is_readable($composer) && ($json = @json_decode(file_get_contents($composer), true))) {
                list($info['vendor'], $info['name']) = explode('/', $json['name']);
                $info['version'] = $json['version'];
                $info['license'] = $json['license'];
                $info['uri']     = $json['homepage'];
                $info['require'] = array_filter(array_keys((array)$json['require']), function($pname) {
                    if (strpos($pname, '/') == false) {
                        return false;
                    }
                    list($vendor, $name) = explode('/', $pname);
                    return !($name == 'plugin-installer' || $vendor == 'pear-pear');
                });
            }

            // read local composer.lock file (once)
            if (!isset($composer_lock)) {
                $composer_lock = @json_decode(@file_get_contents(INSTALL_PATH . "/composer.lock"), true);
                if ($composer_lock['packages']) {
                    foreach ($composer_lock['packages'] as $i => $package) {
                        $composer_lock['installed'][$package['name']] = $package;
                    }
                }
            }

            // load additional information from local composer.lock file
            if ($lock = $composer_lock['installed'][$json['name']]) {
                $info['version'] = $lock['version'];
                $info['uri']     = $lock['homepage'] ?: $lock['source']['uri'];
                $info['src_uri'] = $lock['dist']['uri'] ?: $lock['source']['uri'];
            }
        }

        // fall back to package.xml file
        if (!$info) {
            $package = INSTALL_PATH . "/plugins/$plugin_name/package.xml";
            if (is_readable($package) && ($file = file_get_contents($package))) {
                $doc = new DOMDocument();
                $doc->loadXML($file);
                $xpath = new DOMXPath($doc);
                $xpath->registerNamespace('rc', "http://pear.php.net/dtd/package-2.0");

                // XPaths of plugin metadata elements
                $metadata = array(
                    'name'    => 'string(//rc:package/rc:name)',
                    'version' => 'string(//rc:package/rc:version/rc:release)',
                    'license' => 'string(//rc:package/rc:license)',
                    'license_uri' => 'string(//rc:package/rc:license/@uri)',
                    'src_uri' => 'string(//rc:package/rc:srcuri)',
                    'uri'     => 'string(//rc:package/rc:uri)',
                );

                foreach ($metadata as $key => $path) {
                    $info[$key] = $xpath->evaluate($path);
                }

                // dependent required plugins (can be used, but not included in config)
                $deps = $xpath->evaluate('//rc:package/rc:dependencies/rc:required/rc:package/rc:name');
                for ($i = 0; $i < $deps->length; $i++) {
                    $dn = $deps->item($i)->nodeValue;
                    $info['require'][] = $dn;
                }
            }
        }

        // At least provide the name
        if (!$info && class_exists($plugin_name)) {
            $info = array('name' => $plugin_name, 'version' => '--');
        }
        else if ($info['license'] && empty($info['license_uri']) && ($license_uri = $license_uris[$info['license']])) {
            $info['license_uri'] = $license_uri;
        }

        // read local composer.lock file (once)
        if (!isset($composer_lock)) {
          $composer_lock = @json_decode(@file_get_contents(INSTALL_PATH . "/composer.lock"), true);
          if ($composer_lock['packages']) {
            foreach ($composer_lock['packages'] as $i => $package) {
              $composer_lock['installed'][$package['name']] = $package;
            }
          }
        }

        // load additional information from local composer.lock file
        if ($lock = $composer_lock['installed'][$json['name']]) {
          $info['version'] = $lock['version'];
          $info['uri']     = $lock['homepage'] ? $lock['homepage'] : $lock['source']['uri'];
          $info['src_uri'] = $lock['dist']['uri'] ? $lock['dist']['uri'] : $lock['source']['uri'];
        }
      }

      // fall back to package.xml file
      if (!$info) {
        $package = INSTALL_PATH . "/plugins/$plugin_name/package.xml";
        if (file_exists($package) && ($file = file_get_contents($package))) {
          $doc = new DOMDocument();
          $doc->loadXML($file);
          $xpath = new DOMXPath($doc);
          $xpath->registerNamespace('rc', "http://pear.php.net/dtd/package-2.0");

          // XPaths of plugin metadata elements
          $metadata = array(
            'name'    => 'string(//rc:package/rc:name)',
            'version' => 'string(//rc:package/rc:version/rc:release)',
            'license' => 'string(//rc:package/rc:license)',
            'license_uri' => 'string(//rc:package/rc:license/@uri)',
            'src_uri' => 'string(//rc:package/rc:srcuri)',
            'uri' => 'string(//rc:package/rc:uri)',
          );

          foreach ($metadata as $key => $path) {
            $info[$key] = $xpath->evaluate($path);
          }

          // dependent required plugins (can be used, but not included in config)
          $deps = $xpath->evaluate('//rc:package/rc:dependencies/rc:required/rc:package/rc:name');
          for ($i = 0; $i < $deps->length; $i++) {
            $dn = $deps->item($i)->nodeValue;
            $info['requires'][] = $dn;
          }
        }
      }

      return $info;
        return $info;
    }

    /**
@@ -373,9 +406,11 @@
     */
    public function unregister_hook($hook, $callback)
    {
        $callback_id = array_search($callback, $this->handlers[$hook]);
        $callback_id = array_search($callback, (array) $this->handlers[$hook]);
        if ($callback_id !== false) {
            unset($this->handlers[$hook][$callback_id]);
            // array_splice() removes the element and re-indexes keys
            // that is required by the 'for' loop in exec_hook() below
            array_splice($this->handlers[$hook], $callback_id, 1);
        }
    }

@@ -394,11 +429,14 @@
            $args = array('arg' => $args);
        }

        $args += array('abort' => false);
        $this->active_hook = $hook;
        // TODO: avoid recursion by checking in_array($hook, $this->exec_stack) ?

        foreach ((array)$this->handlers[$hook] as $callback) {
            $ret = call_user_func($callback, $args);
        $args += array('abort' => false);
        array_push($this->exec_stack, $hook);

        // Use for loop here, so handlers added in the hook will be executed too
        for ($i = 0; $i < count($this->handlers[$hook]); $i++) {
            $ret = call_user_func($this->handlers[$hook][$i], $args);
            if ($ret && is_array($ret)) {
                $args = $ret + $args;
            }
@@ -408,7 +446,7 @@
            }
        }

        $this->active_hook = false;
        array_pop($this->exec_stack);
        return $args;
    }

@@ -544,7 +582,7 @@
     */
    public function is_processing($hook = null)
    {
        return $this->active_hook && (!$hook || $this->active_hook == $hook);
        return count($this->exec_stack) > 0 && (!$hook || in_array($hook, $this->exec_stack));
    }

    /**
@@ -596,6 +634,16 @@
    }

    /**
     * Returns loaded plugin
     *
     * @return rcube_plugin Plugin instance
     */
    public function get_plugin($name)
    {
        return $this->plugins[$name];
    }

    /**
     * Callback for template_container hooks
     *
     * @param array $attrib