340 lines
12 KiB
PHP
340 lines
12 KiB
PHP
<?php
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/**
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* @file
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* Callbacks and related functions invoked by authorize.php to update projects.
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*
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* We use the Batch API to actually update each individual project on the site.
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* All of the code in this file is run at a low bootstrap level (modules are not
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* loaded), so these functions cannot assume access to the rest of the code of
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* the Update Manager module.
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*/
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/**
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* Updates existing projects when invoked by authorize.php.
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*
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* Callback for system_authorized_init() in
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* update_manager_update_ready_form_submit().
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*
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* @param $filetransfer
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* The FileTransfer object created by authorize.php for use during this
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* operation.
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* @param $projects
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* A nested array of projects to install into the live webroot, keyed by
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* project name. Each subarray contains the following keys:
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* - project: The canonical project short name.
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* - updater_name: The name of the Updater class to use for this project.
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* - local_url: The locally installed location of new code to update with.
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*/
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function update_authorize_run_update($filetransfer, $projects) {
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$operations = array();
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foreach ($projects as $project => $project_info) {
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$operations[] = array(
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'update_authorize_batch_copy_project',
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array(
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$project_info['project'],
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$project_info['updater_name'],
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$project_info['local_url'],
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$filetransfer,
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),
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);
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}
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$batch = array(
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'title' => t('Installing updates'),
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'init_message' => t('Preparing to update your site'),
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'operations' => $operations,
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'finished' => 'update_authorize_update_batch_finished',
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'file' => drupal_get_path('module', 'update') . '/update.authorize.inc',
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);
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batch_set($batch);
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// Invoke the batch via authorize.php.
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system_authorized_batch_process();
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}
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/**
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* Installs a new project when invoked by authorize.php.
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*
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* Callback for system_authorized_init() in
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* update_manager_install_form_submit().
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*
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* @param FileTransfer $filetransfer
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* The FileTransfer object created by authorize.php for use during this
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* operation.
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* @param string $project
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* The canonical project short name (e.g., {system}.name).
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* @param string $updater_name
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* The name of the Updater class to use for installing this project.
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* @param string $local_url
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* The URL to the locally installed temp directory where the project has
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* already been downloaded and extracted into.
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*/
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function update_authorize_run_install($filetransfer, $project, $updater_name, $local_url) {
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$operations[] = array(
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'update_authorize_batch_copy_project',
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array(
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$project,
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$updater_name,
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$local_url,
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$filetransfer,
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),
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);
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// @todo Instantiate our Updater to set the human-readable title?
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$batch = array(
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'title' => t('Installing %project', array('%project' => $project)),
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'init_message' => t('Preparing to install'),
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'operations' => $operations,
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// @todo Use a different finished callback for different messages?
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'finished' => 'update_authorize_install_batch_finished',
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'file' => drupal_get_path('module', 'update') . '/update.authorize.inc',
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);
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batch_set($batch);
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// Invoke the batch via authorize.php.
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system_authorized_batch_process();
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}
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/**
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* Implements callback_batch_operation().
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*
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* Copies project to its proper place when authorized to do so.
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*
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* @param string $project
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* The canonical short name of the project being installed.
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* @param string $updater_name
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* The name of the Updater class to use for installing this project.
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* @param string $local_url
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* The URL to the locally installed temp directory where the project has
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* already been downloaded and extracted into.
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* @param FileTransfer $filetransfer
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* The FileTransfer object to use for performing this operation.
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* @param array $context
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* Reference to an array used for Batch API storage.
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*/
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function update_authorize_batch_copy_project($project, $updater_name, $local_url, $filetransfer, &$context) {
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// Initialize some variables in the Batch API $context array.
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if (!isset($context['results']['log'])) {
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$context['results']['log'] = array();
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}
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if (!isset($context['results']['log'][$project])) {
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$context['results']['log'][$project] = array();
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}
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if (!isset($context['results']['tasks'])) {
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$context['results']['tasks'] = array();
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}
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// The batch API uses a session, and since all the arguments are serialized
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// and unserialized between requests, although the FileTransfer object itself
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// will be reconstructed, the connection pointer itself will be lost. However,
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// the FileTransfer object will still have the connection variable, even
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// though the connection itself is now gone. So, although it's ugly, we have
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// to unset the connection variable at this point so that the FileTransfer
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// object will re-initiate the actual connection.
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unset($filetransfer->connection);
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if (!empty($context['results']['log'][$project]['#abort'])) {
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$context['finished'] = 1;
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return;
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}
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$updater = new $updater_name($local_url);
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try {
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if ($updater->isInstalled()) {
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// This is an update.
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$tasks = $updater->update($filetransfer);
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}
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else {
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$tasks = $updater->install($filetransfer);
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}
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}
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catch (UpdaterException $e) {
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_update_batch_create_message($context['results']['log'][$project], t('Error installing / updating'), FALSE);
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_update_batch_create_message($context['results']['log'][$project], $e->getMessage(), FALSE);
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$context['results']['log'][$project]['#abort'] = TRUE;
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return;
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}
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_update_batch_create_message($context['results']['log'][$project], t('Installed %project_name successfully', array('%project_name' => $project)));
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if (!empty($tasks)) {
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$context['results']['tasks'] += $tasks;
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}
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// This particular operation is now complete, even though the batch might
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// have other operations to perform.
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$context['finished'] = 1;
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}
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/**
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* Implements callback_batch_finished().
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*
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* Performs actions when the authorized update batch is done.
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*
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* This processes the results and stashes them into SESSION such that
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* authorize.php will render a report. Also responsible for putting the site
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* back online and clearing the update status cache after a successful update.
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*
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* @param $success
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* TRUE if the batch operation was successful; FALSE if there were errors.
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* @param $results
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* An associative array of results from the batch operation.
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*/
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function update_authorize_update_batch_finished($success, $results) {
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foreach ($results['log'] as $project => $messages) {
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if (!empty($messages['#abort'])) {
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$success = FALSE;
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}
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}
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$offline = variable_get('maintenance_mode', FALSE);
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if ($success) {
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// Now that the update completed, we need to clear the cache of available
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// update data and recompute our status, so prevent show bogus results.
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_update_authorize_clear_update_status();
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// Take the site out of maintenance mode if it was previously that way.
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if ($offline && isset($_SESSION['maintenance_mode']) && $_SESSION['maintenance_mode'] == FALSE) {
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variable_set('maintenance_mode', FALSE);
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$page_message = array(
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'message' => t('Update was completed successfully. Your site has been taken out of maintenance mode.'),
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'type' => 'status',
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);
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}
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else {
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$page_message = array(
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'message' => t('Update was completed successfully.'),
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'type' => 'status',
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);
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}
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}
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elseif (!$offline) {
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$page_message = array(
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'message' => t('Update failed! See the log below for more information.'),
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'type' => 'error',
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);
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}
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else {
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$page_message = array(
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'message' => t('Update failed! See the log below for more information. Your site is still in maintenance mode.'),
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'type' => 'error',
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);
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}
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// Since we're doing an update of existing code, always add a task for
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// running update.php.
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$results['tasks'][] = t('Your modules have been downloaded and updated.');
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$results['tasks'][] = t('<a href="@update">Run database updates</a>', array('@update' => base_path() . 'update.php'));
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// Unset the variable since it is no longer needed.
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unset($_SESSION['maintenance_mode']);
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// Set all these values into the SESSION so authorize.php can display them.
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$_SESSION['authorize_results']['success'] = $success;
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$_SESSION['authorize_results']['page_message'] = $page_message;
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$_SESSION['authorize_results']['messages'] = $results['log'];
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$_SESSION['authorize_results']['tasks'] = $results['tasks'];
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$_SESSION['authorize_operation']['page_title'] = t('Update manager');
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}
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/**
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* Implements callback_batch_finished().
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*
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* Performs actions when the authorized install batch is done.
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*
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* This processes the results and stashes them into SESSION such that
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* authorize.php will render a report. Also responsible for putting the site
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* back online after a successful install if necessary.
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*
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* @param $success
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* TRUE if the batch operation was a success; FALSE if there were errors.
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* @param $results
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* An associative array of results from the batch operation.
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*/
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function update_authorize_install_batch_finished($success, $results) {
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foreach ($results['log'] as $project => $messages) {
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if (!empty($messages['#abort'])) {
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$success = FALSE;
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}
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}
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$offline = variable_get('maintenance_mode', FALSE);
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if ($success) {
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// Take the site out of maintenance mode if it was previously that way.
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if ($offline && isset($_SESSION['maintenance_mode']) && $_SESSION['maintenance_mode'] == FALSE) {
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variable_set('maintenance_mode', FALSE);
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$page_message = array(
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'message' => t('Installation was completed successfully. Your site has been taken out of maintenance mode.'),
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'type' => 'status',
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);
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}
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else {
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$page_message = array(
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'message' => t('Installation was completed successfully.'),
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'type' => 'status',
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);
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}
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}
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elseif (!$success && !$offline) {
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$page_message = array(
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'message' => t('Installation failed! See the log below for more information.'),
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'type' => 'error',
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);
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}
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else {
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$page_message = array(
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'message' => t('Installation failed! See the log below for more information. Your site is still in maintenance mode.'),
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'type' => 'error',
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);
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}
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// Unset the variable since it is no longer needed.
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unset($_SESSION['maintenance_mode']);
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// Set all these values into the SESSION so authorize.php can display them.
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$_SESSION['authorize_results']['success'] = $success;
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$_SESSION['authorize_results']['page_message'] = $page_message;
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$_SESSION['authorize_results']['messages'] = $results['log'];
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$_SESSION['authorize_results']['tasks'] = $results['tasks'];
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$_SESSION['authorize_operation']['page_title'] = t('Update manager');
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}
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/**
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* Creates a structure of log messages.
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*
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* @param array $project_results
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* An associative array of results from the batch operation.
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* @param string $message
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* A string containing a log message.
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* @param bool $success
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* (optional) TRUE if the operation the message is about was a success, FALSE
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* if there were errors. Defaults to TRUE.
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*/
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function _update_batch_create_message(&$project_results, $message, $success = TRUE) {
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$project_results[] = array('message' => $message, 'success' => $success);
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}
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/**
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* Clears cached available update status data.
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*
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* Since this function is run at such a low bootstrap level, the Update Manager
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* module is not loaded. So, we can't just call _update_cache_clear(). However,
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* the database is bootstrapped, so we can do a query ourselves to clear out
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* what we want to clear.
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*
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* Note that we do not want to just truncate the table, since that would remove
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* items related to currently pending fetch attempts.
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*
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* @see update_authorize_update_batch_finished()
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* @see _update_cache_clear()
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*/
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function _update_authorize_clear_update_status() {
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$query = db_delete('cache_update');
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$query->condition(
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db_or()
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->condition('cid', 'update_project_%', 'LIKE')
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->condition('cid', 'available_releases::%', 'LIKE')
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);
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$query->execute();
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}
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