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<?php
/**
* @file
* API functions for installing Drupal.
*/
/**
* Global flag to indicate that a task should not be run during the current
* installation request.
*
* This can be used to skip running an installation task when certain
* conditions are met, even though the task may still show on the list of
* installation tasks presented to the user. For example, the Drupal installer
* uses this flag to skip over the database configuration form when valid
* database connection information is already available from settings.php. It
* also uses this flag to skip language import tasks when the installation is
* being performed in English.
*/
define('INSTALL_TASK_SKIP', 1);
/**
* Global flag to indicate that a task should be run on each installation
* request that reaches it.
*
* This is primarily used by the Drupal installer for bootstrap-related tasks.
*/
define('INSTALL_TASK_RUN_IF_REACHED', 2);
/**
* Global flag to indicate that a task should be run on each installation
* request that reaches it, until the database is set up and we are able to
* record the fact that it already ran.
*
* This is the default method for running tasks and should be used for most
* tasks that occur after the database is set up; these tasks will then run
* once and be marked complete once they are successfully finished. For
* example, the Drupal installer uses this flag for the batch installation of
* modules on the new site, and also for the configuration form that collects
* basic site information and sets up the site maintenance account.
*/
define('INSTALL_TASK_RUN_IF_NOT_COMPLETED', 3);
/**
* Installs Drupal either interactively or via an array of passed-in settings.
*
* The Drupal installation happens in a series of steps, which may be spread
* out over multiple page requests. Each request begins by trying to determine
* the last completed installation step (also known as a "task"), if one is
* available from a previous request. Control is then passed to the task
* handler, which processes the remaining tasks that need to be run until (a)
* an error is thrown, (b) a new page needs to be displayed, or (c) the
* installation finishes (whichever happens first).
*
* @param $settings
* An optional array of installation settings. Leave this empty for a normal,
* interactive, browser-based installation intended to occur over multiple
* page requests. Alternatively, if an array of settings is passed in, the
* installer will attempt to use it to perform the installation in a single
* page request (optimized for the command line) and not send any output
* intended for the web browser. See install_state_defaults() for a list of
* elements that are allowed to appear in this array.
*
* @see install_state_defaults()
*/
function install_drupal($settings = array()) {
global $install_state;
// Initialize the installation state with the settings that were passed in,
// as well as a boolean indicating whether or not this is an interactive
// installation.
$interactive = empty($settings);
$install_state = $settings + array('interactive' => $interactive) + install_state_defaults();
try {
// Begin the page request. This adds information about the current state of
// the Drupal installation to the passed-in array.
install_begin_request($install_state);
// Based on the installation state, run the remaining tasks for this page
// request, and collect any output.
$output = install_run_tasks($install_state);
}
catch (Exception $e) {
// When an installation error occurs, either send the error to the web
// browser or pass on the exception so the calling script can use it.
if ($install_state['interactive']) {
install_display_output($e->getMessage(), $install_state);
}
else {
throw $e;
}
}
// All available tasks for this page request are now complete. Interactive
// installations can send output to the browser or redirect the user to the
// next page.
if ($install_state['interactive']) {
if ($install_state['parameters_changed']) {
// Redirect to the correct page if the URL parameters have changed.
install_goto(install_redirect_url($install_state));
}
elseif (isset($output)) {
// Display a page only if some output is available. Otherwise it is
// possible that we are printing a JSON page and theme output should
// not be shown.
install_display_output($output, $install_state);
}
}
}
/**
* Returns an array of default settings for the global installation state.
*
* The installation state is initialized with these settings at the beginning
* of each page request. They may evolve during the page request, but they are
* initialized again once the next request begins.
*
* Non-interactive Drupal installations can override some of these default
* settings by passing in an array to the installation script, most notably
* 'parameters' (which contains one-time parameters such as 'profile' and
* 'locale' that are normally passed in via the URL) and 'forms' (which can
* be used to programmatically submit forms during the installation; the keys
* of each element indicate the name of the installation task that the form
* submission is for, and the values are used as the $form_state['values']
* array that is passed on to the form submission via drupal_form_submit()).
*
* @see drupal_form_submit()
*/
function install_state_defaults() {
$defaults = array(
// The current task being processed.
'active_task' => NULL,
// The last task that was completed during the previous installation
// request.
'completed_task' => NULL,
// This becomes TRUE only when Drupal's system module is installed.
'database_tables_exist' => FALSE,
// An array of forms to be programmatically submitted during the
// installation. The keys of each element indicate the name of the
// installation task that the form submission is for, and the values are
// used as the $form_state['values'] array that is passed on to the form
// submission via drupal_form_submit().
'forms' => array(),
// This becomes TRUE only at the end of the installation process, after
// all available tasks have been completed and Drupal is fully installed.
// It is used by the installer to store correct information in the database
// about the completed installation, as well as to inform theme functions
// that all tasks are finished (so that the task list can be displayed
// correctly).
'installation_finished' => FALSE,
// Whether or not this installation is interactive. By default this will
// be set to FALSE if settings are passed in to install_drupal().
'interactive' => TRUE,
// An array of available languages for the installation.
'locales' => array(),
// An array of parameters for the installation, pre-populated by the URL
// or by the settings passed in to install_drupal(). This is primarily
// used to store 'profile' (the name of the chosen installation profile)
// and 'locale' (the name of the chosen installation language), since
// these settings need to persist from page request to page request before
// the database is available for storage.
'parameters' => array(),
// Whether or not the parameters have changed during the current page
// request. For interactive installations, this will trigger a page
// redirect.
'parameters_changed' => FALSE,
// An array of information about the chosen installation profile. This will
// be filled in based on the profile's .info file.
'profile_info' => array(),
// An array of available installation profiles.
'profiles' => array(),
// An array of server variables that will be substituted into the global
// $_SERVER array via drupal_override_server_variables(). Used by
// non-interactive installations only.
'server' => array(),
// This becomes TRUE only when a valid database connection can be
// established.
'settings_verified' => FALSE,
// Installation tasks can set this to TRUE to force the page request to
// end (even if there is no themable output), in the case of an interactive
// installation. This is needed only rarely; for example, it would be used
// by an installation task that prints JSON output rather than returning a
// themed page. The most common example of this is during batch processing,
// but the Drupal installer automatically takes care of setting this
// parameter properly in that case, so that individual installation tasks
// which implement the batch API do not need to set it themselves.
'stop_page_request' => FALSE,
// Installation tasks can set this to TRUE to indicate that the task should
// be run again, even if it normally wouldn't be. This can be used, for
// example, if a single task needs to be spread out over multiple page
// requests, or if it needs to perform some validation before allowing
// itself to be marked complete. The most common examples of this are batch
// processing and form submissions, but the Drupal installer automatically
// takes care of setting this parameter properly in those cases, so that
// individual installation tasks which implement the batch API or form API
// do not need to set it themselves.
'task_not_complete' => FALSE,
// A list of installation tasks which have already been performed during
// the current page request.
'tasks_performed' => array(),
);
return $defaults;
}
/**
* Begin an installation request, modifying the installation state as needed.
*
* This function performs commands that must run at the beginning of every page
* request. It throws an exception if the installation should not proceed.
*
* @param $install_state
* An array of information about the current installation state. This is
* modified with information gleaned from the beginning of the page request.
*/
function install_begin_request(&$install_state) {
// Add any installation parameters passed in via the URL.
$install_state['parameters'] += $_GET;
// Validate certain core settings that are used throughout the installation.
if (!empty($install_state['parameters']['profile'])) {
$install_state['parameters']['profile'] = preg_replace('/[^a-zA-Z_0-9]/', '', $install_state['parameters']['profile']);
}
if (!empty($install_state['parameters']['locale'])) {
$install_state['parameters']['locale'] = preg_replace('/[^a-zA-Z_0-9\-]/', '', $install_state['parameters']['locale']);
}
// Allow command line scripts to override server variables used by Drupal.
require_once DRUPAL_ROOT . '/includes/bootstrap.inc';
if (!$install_state['interactive']) {
drupal_override_server_variables($install_state['server']);
}
// The user agent header is used to pass a database prefix in the request when
// running tests. However, for security reasons, it is imperative that no
// installation be permitted using such a prefix.
if (isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], "simpletest") !== FALSE) {
header($_SERVER['SERVER_PROTOCOL'] . ' 403 Forbidden');
exit;
}
drupal_bootstrap(DRUPAL_BOOTSTRAP_CONFIGURATION);
// This must go after drupal_bootstrap(), which unsets globals!
global $conf;
require_once DRUPAL_ROOT . '/modules/system/system.install';
require_once DRUPAL_ROOT . '/includes/common.inc';
require_once DRUPAL_ROOT . '/includes/file.inc';
require_once DRUPAL_ROOT . '/includes/install.inc';
require_once DRUPAL_ROOT . '/' . variable_get('path_inc', 'includes/path.inc');
// Load module basics (needed for hook invokes).
include_once DRUPAL_ROOT . '/includes/module.inc';
include_once DRUPAL_ROOT . '/includes/session.inc';
// Set up $language, so t() caller functions will still work.
drupal_language_initialize();
include_once DRUPAL_ROOT . '/includes/entity.inc';
require_once DRUPAL_ROOT . '/includes/ajax.inc';
$module_list['system']['filename'] = 'modules/system/system.module';
$module_list['user']['filename'] = 'modules/user/user.module';
module_list(TRUE, FALSE, FALSE, $module_list);
drupal_load('module', 'system');
drupal_load('module', 'user');
// Load the cache infrastructure using a "fake" cache implementation that
// does not attempt to write to the database. We need this during the initial
// part of the installer because the database is not available yet. We
// continue to use it even when the database does become available, in order
// to preserve consistency between interactive and command-line installations
// (the latter complete in one page request and therefore are forced to
// continue using the cache implementation they started with) and also
// because any data put in the cache during the installer is inherently
// suspect, due to the fact that Drupal is not fully set up yet.
require_once DRUPAL_ROOT . '/includes/cache.inc';
require_once DRUPAL_ROOT . '/includes/cache-install.inc';
$conf['cache_default_class'] = 'DrupalFakeCache';
// Prepare for themed output. We need to run this at the beginning of the
// page request to avoid a different theme accidentally getting set. (We also
// need to run it even in the case of command-line installations, to prevent
// any code in the installer that happens to initialize the theme system from
// accessing the database before it is set up yet.)
drupal_maintenance_theme();
// Check existing settings.php.
$install_state['settings_verified'] = install_verify_settings();
if ($install_state['settings_verified']) {
// Initialize the database system. Note that the connection
// won't be initialized until it is actually requested.
require_once DRUPAL_ROOT . '/includes/database/database.inc';
// Verify the last completed task in the database, if there is one.
$task = install_verify_completed_task();
}
else {
$task = NULL;
// Since previous versions of Drupal stored database connection information
// in the 'db_url' variable, we should never let an installation proceed if
// this variable is defined and the settings file was not verified above
// (otherwise we risk installing over an existing site whose settings file
// has not yet been updated).
if (!empty($GLOBALS['db_url'])) {
throw new Exception(install_already_done_error());
}
}
// Modify the installation state as appropriate.
$install_state['completed_task'] = $task;
$install_state['database_tables_exist'] = !empty($task);
}
/**
* Runs all tasks for the current installation request.
*
* In the case of an interactive installation, all tasks will be attempted
* until one is reached that has output which needs to be displayed to the
* user, or until a page redirect is required. Otherwise, tasks will be
* attempted until the installation is finished.
*
* @param $install_state
* An array of information about the current installation state. This is
* passed along to each task, so it can be modified if necessary.
*
* @return
* HTML output from the last completed task.
*/
function install_run_tasks(&$install_state) {
do {
// Obtain a list of tasks to perform. The list of tasks itself can be
// dynamic (e.g., some might be defined by the installation profile,
// which is not necessarily known until the earlier tasks have run),
// so we regenerate the remaining tasks based on the installation state,
// each time through the loop.
$tasks_to_perform = install_tasks_to_perform($install_state);
// Run the first task on the list.
reset($tasks_to_perform);
$task_name = key($tasks_to_perform);
$task = array_shift($tasks_to_perform);
$install_state['active_task'] = $task_name;
$original_parameters = $install_state['parameters'];
$output = install_run_task($task, $install_state);
$install_state['parameters_changed'] = ($install_state['parameters'] != $original_parameters);
// Store this task as having been performed during the current request,
// and save it to the database as completed, if we need to and if the
// database is in a state that allows us to do so. Also mark the
// installation as 'done' when we have run out of tasks.
if (!$install_state['task_not_complete']) {
$install_state['tasks_performed'][] = $task_name;
$install_state['installation_finished'] = empty($tasks_to_perform);
if ($install_state['database_tables_exist'] && ($task['run'] == INSTALL_TASK_RUN_IF_NOT_COMPLETED || $install_state['installation_finished'])) {
variable_set('install_task', $install_state['installation_finished'] ? 'done' : $task_name);
}
}
// Stop when there are no tasks left. In the case of an interactive
// installation, also stop if we have some output to send to the browser,
// the URL parameters have changed, or an end to the page request was
// specifically called for.
$finished = empty($tasks_to_perform) || ($install_state['interactive'] && (isset($output) || $install_state['parameters_changed'] || $install_state['stop_page_request']));
} while (!$finished);
return $output;
}
/**
* Runs an individual installation task.
*
* @param $task
* An array of information about the task to be run.
* @param $install_state
* An array of information about the current installation state. This is
* passed in by reference so that it can be modified by the task.
*
* @return
* The output of the task function, if there is any.
*/
function install_run_task($task, &$install_state) {
$function = $task['function'];
if ($task['type'] == 'form') {
require_once DRUPAL_ROOT . '/includes/form.inc';
if ($install_state['interactive']) {
// For interactive forms, build the form and ensure that it will not
// redirect, since the installer handles its own redirection only after
// marking the form submission task complete.
$form_state = array(
// We need to pass $install_state by reference in order for forms to
// modify it, since the form API will use it in call_user_func_array(),
// which requires that referenced variables be passed explicitly.
'build_info' => array('args' => array(&$install_state)),
'no_redirect' => TRUE,
);
$form = drupal_build_form($function, $form_state);
// If a successful form submission did not occur, the form needs to be
// rendered, which means the task is not complete yet.
if (empty($form_state['executed'])) {
$install_state['task_not_complete'] = TRUE;
return drupal_render($form);
}
// Otherwise, return nothing so the next task will run in the same
// request.
return;
}
else {
// For non-interactive forms, submit the form programmatically with the
// values taken from the installation state. Throw an exception if any
// errors were encountered.
$form_state = array(
'values' => !empty($install_state['forms'][$function]) ? $install_state['forms'][$function] : array(),
// We need to pass $install_state by reference in order for forms to
// modify it, since the form API will use it in call_user_func_array(),
// which requires that referenced variables be passed explicitly.
'build_info' => array('args' => array(&$install_state)),
);
drupal_form_submit($function, $form_state);
$errors = form_get_errors();
if (!empty($errors)) {
throw new Exception(implode("\n", $errors));
}
}
}
elseif ($task['type'] == 'batch') {
// Start a new batch based on the task function, if one is not running
// already.
$current_batch = variable_get('install_current_batch');
if (!$install_state['interactive'] || !$current_batch) {
$batch = $function($install_state);
if (empty($batch)) {
// If the task did some processing and decided no batch was necessary,
// there is nothing more to do here.
return;
}
batch_set($batch);
// For interactive batches, we need to store the fact that this batch
// task is currently running. Otherwise, we need to make sure the batch
// will complete in one page request.
if ($install_state['interactive']) {
variable_set('install_current_batch', $function);
}
else {
$batch =& batch_get();
$batch['progressive'] = FALSE;
}
// Process the batch. For progressive batches, this will redirect.
// Otherwise, the batch will complete.
batch_process(install_redirect_url($install_state), install_full_redirect_url($install_state));
}
// If we are in the middle of processing this batch, keep sending back
// any output from the batch process, until the task is complete.
elseif ($current_batch == $function) {
include_once DRUPAL_ROOT . '/includes/batch.inc';
$output = _batch_page();
// The task is complete when we try to access the batch page and receive
// FALSE in return, since this means we are at a URL where we are no
// longer requesting a batch ID.
if ($output === FALSE) {
// Return nothing so the next task will run in the same request.
variable_del('install_current_batch');
return;
}
else {
// We need to force the page request to end if the task is not
// complete, since the batch API sometimes prints JSON output
// rather than returning a themed page.
$install_state['task_not_complete'] = $install_state['stop_page_request'] = TRUE;
return $output;
}
}
}
else {
// For normal tasks, just return the function result, whatever it is.
return $function($install_state);
}
}
/**
* Returns a list of tasks to perform during the current installation request.
*
* Note that the list of tasks can change based on the installation state as
* the page request evolves (for example, if an installation profile hasn't
* been selected yet, we don't yet know which profile tasks need to be run).
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* A list of tasks to be performed, with associated metadata.
*/
function install_tasks_to_perform($install_state) {
// Start with a list of all currently available tasks.
$tasks = install_tasks($install_state);
foreach ($tasks as $name => $task) {
// Remove any tasks that were already performed or that never should run.
// Also, if we started this page request with an indication of the last
// task that was completed, skip that task and all those that come before
// it, unless they are marked as always needing to run.
if ($task['run'] == INSTALL_TASK_SKIP || in_array($name, $install_state['tasks_performed']) || (!empty($install_state['completed_task']) && empty($completed_task_found) && $task['run'] != INSTALL_TASK_RUN_IF_REACHED)) {
unset($tasks[$name]);
}
if (!empty($install_state['completed_task']) && $name == $install_state['completed_task']) {
$completed_task_found = TRUE;
}
}
return $tasks;
}
/**
* Returns a list of all tasks the installer currently knows about.
*
* This function will return tasks regardless of whether or not they are
* intended to run on the current page request. However, the list can change
* based on the installation state (for example, if an installation profile
* hasn't been selected yet, we don't yet know which profile tasks will be
* available).
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* A list of tasks, with associated metadata.
*/
function install_tasks($install_state) {
// Determine whether translation import tasks will need to be performed.
$needs_translations = count($install_state['locales']) > 1 && !empty($install_state['parameters']['locale']) && $install_state['parameters']['locale'] != 'en';
// Start with the core installation tasks that run before handing control
// to the install profile.
$tasks = array(
'install_select_profile' => array(
'display_name' => st('Choose profile'),
'display' => count($install_state['profiles']) != 1,
'run' => INSTALL_TASK_RUN_IF_REACHED,
),
'install_select_locale' => array(
'display_name' => st('Choose language'),
'run' => INSTALL_TASK_RUN_IF_REACHED,
),
'install_load_profile' => array(
'run' => INSTALL_TASK_RUN_IF_REACHED,
),
'install_verify_requirements' => array(
'display_name' => st('Verify requirements'),
),
'install_settings_form' => array(
'display_name' => st('Set up database'),
'type' => 'form',
'run' => $install_state['settings_verified'] ? INSTALL_TASK_SKIP : INSTALL_TASK_RUN_IF_NOT_COMPLETED,
),
'install_system_module' => array(
),
'install_bootstrap_full' => array(
'run' => INSTALL_TASK_RUN_IF_REACHED,
),
'install_profile_modules' => array(
'display_name' => count($install_state['profiles']) == 1 ? st('Install site') : st('Install profile'),
'type' => 'batch',
),
'install_import_locales' => array(
'display_name' => st('Set up translations'),
'display' => $needs_translations,
'type' => 'batch',
'run' => $needs_translations ? INSTALL_TASK_RUN_IF_NOT_COMPLETED : INSTALL_TASK_SKIP,
),
'install_configure_form' => array(
'display_name' => st('Configure site'),
'type' => 'form',
),
);
// Now add any tasks defined by the installation profile.
if (!empty($install_state['parameters']['profile'])) {
// Load the profile install file, because it is not always loaded when
// hook_install_tasks() is invoked (e.g. batch processing).
$profile_install_file = DRUPAL_ROOT . '/profiles/' . $install_state['parameters']['profile'] . '/' . $install_state['parameters']['profile'] . '.install';
if (file_exists($profile_install_file)) {
include_once $profile_install_file;
}
$function = $install_state['parameters']['profile'] . '_install_tasks';
if (function_exists($function)) {
$result = $function($install_state);
if (is_array($result)) {
$tasks += $result;
}
}
}
// Finish by adding the remaining core tasks.
$tasks += array(
'install_import_locales_remaining' => array(
'display_name' => st('Finish translations'),
'display' => $needs_translations,
'type' => 'batch',
'run' => $needs_translations ? INSTALL_TASK_RUN_IF_NOT_COMPLETED : INSTALL_TASK_SKIP,
),
'install_finished' => array(
'display_name' => st('Finished'),
),
);
// Allow the installation profile to modify the full list of tasks.
if (!empty($install_state['parameters']['profile'])) {
$profile_file = DRUPAL_ROOT . '/profiles/' . $install_state['parameters']['profile'] . '/' . $install_state['parameters']['profile'] . '.profile';
if (file_exists($profile_file)) {
include_once $profile_file;
$function = $install_state['parameters']['profile'] . '_install_tasks_alter';
if (function_exists($function)) {
$function($tasks, $install_state);
}
}
}
// Fill in default parameters for each task before returning the list.
foreach ($tasks as $task_name => &$task) {
$task += array(
'display_name' => NULL,
'display' => !empty($task['display_name']),
'type' => 'normal',
'run' => INSTALL_TASK_RUN_IF_NOT_COMPLETED,
'function' => $task_name,
);
}
return $tasks;
}
/**
* Returns a list of tasks that should be displayed to the end user.
*
* The output of this function is a list suitable for sending to
* theme_task_list().
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* A list of tasks, with keys equal to the machine-readable task name and
* values equal to the name that should be displayed.
*
* @see theme_task_list()
*/
function install_tasks_to_display($install_state) {
$displayed_tasks = array();
foreach (install_tasks($install_state) as $name => $task) {
if ($task['display']) {
$displayed_tasks[$name] = $task['display_name'];
}
}
return $displayed_tasks;
}
/**
* Returns the URL that should be redirected to during an installation request.
*
* The output of this function is suitable for sending to install_goto().
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* The URL to redirect to.
*
* @see install_full_redirect_url()
*/
function install_redirect_url($install_state) {
return 'install.php?' . drupal_http_build_query($install_state['parameters']);
}
/**
* Returns the complete URL redirected to during an installation request.
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* The complete URL to redirect to.
*
* @see install_redirect_url()
*/
function install_full_redirect_url($install_state) {
global $base_url;
return $base_url . '/' . install_redirect_url($install_state);
}
/**
* Displays themed installer output and ends the page request.
*
* Installation tasks should use drupal_set_title() to set the desired page
* title, but otherwise this function takes care of theming the overall page
* output during every step of the installation.
*
* @param $output
* The content to display on the main part of the page.
* @param $install_state
* An array of information about the current installation state.
*/
function install_display_output($output, $install_state) {
drupal_page_header();
// Only show the task list if there is an active task; otherwise, the page
// request has ended before tasks have even been started, so there is nothing
// meaningful to show.
if (isset($install_state['active_task'])) {
// Let the theming function know when every step of the installation has
// been completed.
$active_task = $install_state['installation_finished'] ? NULL : $install_state['active_task'];
drupal_add_region_content('sidebar_first', theme('task_list', array('items' => install_tasks_to_display($install_state), 'active' => $active_task)));
}
print theme('install_page', array('content' => $output));
exit;
}
/**
* Installation task; verify the requirements for installing Drupal.
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* A themed status report, or an exception if there are requirement errors.
* If there are only requirement warnings, a themed status report is shown
* initially, but the user is allowed to bypass it by providing 'continue=1'
* in the URL. Otherwise, no output is returned, so that the next task can be
* run in the same page request.
*/
function install_verify_requirements(&$install_state) {
// Check the installation requirements for Drupal and this profile.
$requirements = install_check_requirements($install_state);
// Verify existence of all required modules.
$requirements += drupal_verify_profile($install_state);
// Check the severity of the requirements reported.
$severity = drupal_requirements_severity($requirements);
// If there are errors, always display them. If there are only warnings, skip
// them if the user has provided a URL parameter acknowledging the warnings
// and indicating a desire to continue anyway. See drupal_requirements_url().
if ($severity == REQUIREMENT_ERROR || ($severity == REQUIREMENT_WARNING && empty($install_state['parameters']['continue']))) {
if ($install_state['interactive']) {
drupal_set_title(st('Requirements problem'));
$status_report = theme('status_report', array('requirements' => $requirements));
$status_report .= st('Check the error messages and <a href="!url">proceed with the installation</a>.', array('!url' => check_url(drupal_requirements_url($severity))));
return $status_report;
}
else {
// Throw an exception showing any unmet requirements.
$failures = array();
foreach ($requirements as $requirement) {
// Skip warnings altogether for non-interactive installations; these
// proceed in a single request so there is no good opportunity (and no
// good method) to warn the user anyway.
if (isset($requirement['severity']) && $requirement['severity'] == REQUIREMENT_ERROR) {
$failures[] = $requirement['title'] . ': ' . $requirement['value'] . "\n\n" . $requirement['description'];
}
}
if (!empty($failures)) {
throw new Exception(implode("\n\n", $failures));
}
}
}
}
/**
* Installation task; install the Drupal system module.
*
* @param $install_state
* An array of information about the current installation state.
*/
function install_system_module(&$install_state) {
// Install system.module.
drupal_install_system();
// Enable the user module so that sessions can be recorded during the
// upcoming bootstrap step.
module_enable(array('user'), FALSE);
// Save the list of other modules to install for the upcoming tasks.
// variable_set() can be used now that system.module is installed.
$modules = $install_state['profile_info']['dependencies'];
// The install profile is also a module, which needs to be installed
// after all the dependencies have been installed.
$modules[] = drupal_get_profile();
variable_set('install_profile_modules', array_diff($modules, array('system')));
$install_state['database_tables_exist'] = TRUE;
}
/**
* Verify and return the last installation task that was completed.
*
* @return
* The last completed task, if there is one. An exception is thrown if Drupal
* is already installed.
*/
function install_verify_completed_task() {
try {
if ($result = db_query("SELECT value FROM {variable} WHERE name = :name", array('name' => 'install_task'))) {
$task = unserialize($result->fetchField());
}
}
// Do not trigger an error if the database query fails, since the database
// might not be set up yet.
catch (Exception $e) {
}
if (isset($task)) {
if ($task == 'done') {
throw new Exception(install_already_done_error());
}
return $task;
}
}
/**
* Verifies the existing settings in settings.php.
*/
function install_verify_settings() {
global $databases;
// Verify existing settings (if any).
if (!empty($databases) && install_verify_pdo()) {
$database = $databases['default']['default'];
drupal_static_reset('conf_path');
$settings_file = './' . conf_path(FALSE) . '/settings.php';
$errors = install_database_errors($database, $settings_file);
if (empty($errors)) {
return TRUE;
}
}
return FALSE;
}
/**
* Verify PDO library.
*/
function install_verify_pdo() {
// PDO was moved to PHP core in 5.2.0, but the old extension (targeting 5.0
// and 5.1) is still available from PECL, and can still be built without
// errors. To verify that the correct version is in use, we check the
// PDO::ATTR_DEFAULT_FETCH_MODE constant, which is not available in the
// PECL extension.
return extension_loaded('pdo') && defined('PDO::ATTR_DEFAULT_FETCH_MODE');
}
/**
* Installation task; define a form to configure and rewrite settings.php.
*
* @param $form_state
* An associative array containing the current state of the form.
* @param $install_state
* An array of information about the current installation state.
*
* @return
* The form API definition for the database configuration form.
*/
function install_settings_form($form, &$form_state, &$install_state) {
global $databases;
$profile = $install_state['parameters']['profile'];
$install_locale = $install_state['parameters']['locale'];
drupal_static_reset('conf_path');
$conf_path = './' . conf_path(FALSE);
$settings_file = $conf_path . '/settings.php';
$database = isset($databases['default']['default']) ? $databases['default']['default'] : array();
drupal_set_title(st('Database configuration'));
$drivers = drupal_get_database_types();
$drivers_keys = array_keys($drivers);
$form['driver'] = array(
'#type' => 'radios',
'#title' => st('Database type'),
'#required' => TRUE,
'#default_value' => !empty($database['driver']) ? $database['driver'] : current($drivers_keys),
'#description' => st('The type of database your @drupal data will be stored in.', array('@drupal' => drupal_install_profile_distribution_name())),
);
if (count($drivers) == 1) {
$form['driver']['#disabled'] = TRUE;
$form['driver']['#description'] .= ' ' . st('Your PHP configuration only supports a single database type, so it has been automatically selected.');
}
// Add driver specific configuration options.
foreach ($drivers as $key => $driver) {
$form['driver']['#options'][$key] = $driver->name();
$form['settings'][$key] = $driver->getFormOptions($database);
$form['settings'][$key]['#prefix'] = '<h2 class="js-hide">' . st('@driver_name settings', array('@driver_name' => $driver->name())) . '</h2>';
$form['settings'][$key]['#type'] = 'container';
$form['settings'][$key]['#tree'] = TRUE;
$form['settings'][$key]['advanced_options']['#parents'] = array($key);
$form['settings'][$key]['#states'] = array(
'visible' => array(
':input[name=driver]' => array('value' => $key),
)
);
}
$form['actions'] = array('#type' => 'actions');
$form['actions']['save'] = array(
'#type' => 'submit',
'#value' => st('Save and continue'),
'#limit_validation_errors' => array(
array('driver'),
array(isset($form_state['input']['driver']) ? $form_state['input']['driver'] : current($drivers_keys)),
),
'#submit' => array('install_settings_form_submit'),
);
$form['errors'] = array();
$form['settings_file'] = array('#type' => 'value', '#value' => $settings_file);
return $form;
}
/**
* Form API validate for install_settings form.
*/
function install_settings_form_validate($form, &$form_state) {
$driver = $form_state['values']['driver'];
$database = $form_state['values'][$driver];
$database['driver'] = $driver;
// TODO: remove when PIFR will be updated to use 'db_prefix' instead of
// 'prefix' in the database settings form.
$database['prefix'] = $database['db_prefix'];
unset($database['db_prefix']);
$form_state['storage']['database'] = $database;
$errors = install_database_errors($database, $form_state['values']['settings_file']);
foreach ($errors as $name => $message) {
form_set_error($name, $message);
}
}
/**
* Checks a database connection and returns any errors.
*/
function install_database_errors($database, $settings_file) {
global $databases;
$errors = array();
// Check database type.
$database_types = drupal_get_database_types();
$driver = $database['driver'];
if (!isset($database_types[$driver])) {
$errors['driver'] = st("In your %settings_file file you have configured @drupal to use a %driver server, however your PHP installation currently does not support this database type.", array('%settings_file' => $settings_file, '@drupal' => drupal_install_profile_distribution_name(), '%driver' => $driver));
}
else {
// Run driver specific validation
$errors += $database_types[$driver]->validateDatabaseSettings($database);
// Run tasks associated with the database type. Any errors are caught in the
// calling function.
$databases['default']['default'] = $database;
// Just changing the global doesn't get the new information processed.
// We tell tell the Database class to re-parse $databases.
Database::parseConnectionInfo();
try {
db_run_tasks($driver);
}
catch (DatabaseTaskException $e) {
// These are generic errors, so we do not have any specific key of the
// database connection array to attach them to; therefore, we just put
// them in the error array with standard numeric keys.
$errors[$driver . '][0'] = $e->getMessage();
}
}
return $errors;
}
/**
* Form API submit for install_settings form.
*/
function install_settings_form_submit($form, &$form_state) {
global $install_state;
// Update global settings array and save.
$settings['databases'] = array(
'value' => array('default' => array('default' => $form_state['storage']['database'])),
'required' => TRUE,
);
$settings['drupal_hash_salt'] = array(
'value' => drupal_hash_base64(drupal_random_bytes(55)),
'required' => TRUE,
);
drupal_rewrite_settings($settings);
// Indicate that the settings file has been verified, and check the database
// for the last completed task, now that we have a valid connection. This
// last step is important since we want to trigger an error if the new
// database already has Drupal installed.
$install_state['settings_verified'] = TRUE;
$install_state['completed_task'] = install_verify_completed_task();
}
/**
* Finds all .profile files.
*/
function install_find_profiles() {
return file_scan_directory('./profiles', '/\.profile$/', array('key' => 'name'));
}
/**
* Installation task; select which profile to install.
*
* @param $install_state
* An array of information about the current installation state. The chosen
* profile will be added here, if it was not already selected previously, as
* will a list of all available profiles.
*
* @return
* For interactive installations, a form allowing the profile to be selected,
* if the user has a choice that needs to be made. Otherwise, an exception is
* thrown if a profile cannot be chosen automatically.
*/
function install_select_profile(&$install_state) {
$install_state['profiles'] += install_find_profiles();
if (empty($install_state['parameters']['profile'])) {
// Try to find a profile.
$profile = _install_select_profile($install_state['profiles']);
if (empty($profile)) {
// We still don't have a profile, so display a form for selecting one.
// Only do this in the case of interactive installations, since this is
// not a real form with submit handlers (the database isn't even set up
// yet), rather just a convenience method for setting parameters in the
// URL.
if ($install_state['interactive']) {
include_once DRUPAL_ROOT . '/includes/form.inc';
drupal_set_title(st('Select an installation profile'));
$form = drupal_get_form('install_select_profile_form', $install_state['profiles']);
return drupal_render($form);
}
else {
throw new Exception(install_no_profile_error());
}
}
else {
$install_state['parameters']['profile'] = $profile;
}
}
}
/**
* Helper function for automatically selecting an installation profile from a
* list or from a selection passed in via $_POST.
*/
function _install_select_profile($profiles) {
if (sizeof($profiles) == 0) {
throw new Exception(install_no_profile_error());
}
// Don't need to choose profile if only one available.
if (sizeof($profiles) == 1) {
$profile = array_pop($profiles);
// TODO: is this right?
require_once DRUPAL_ROOT . '/' . $profile->uri;
return $profile->name;
}
else {
foreach ($profiles as $profile) {
if (!empty($_POST['profile']) && ($_POST['profile'] == $profile->name)) {
return $profile->name;
}
}
}
}
/**
* Form API array definition for the profile selection form.
*
* @param $form_state
* Array of metadata about state of form processing.
* @param $profile_files
* Array of .profile files, as returned from file_scan_directory().
*/
function install_select_profile_form($form, &$form_state, $profile_files) {
$profiles = array();
$names = array();
foreach ($profile_files as $profile) {
// TODO: is this right?
include_once DRUPAL_ROOT . '/' . $profile->uri;
$details = install_profile_info($profile->name);
// Don't show hidden profiles. This is used by to hide the testing profile,
// which only exists to speed up test runs.
if ($details['hidden'] === TRUE) {
continue;
}
$profiles[$profile->name] = $details;
// Determine the name of the profile; default to file name if defined name
// is unspecified.
$name = isset($details['name']) ? $details['name'] : $profile->name;
$names[$profile->name] = $name;
}
// Display radio buttons alphabetically by human-readable name, but always
// put the core profiles first (if they are present in the filesystem).
natcasesort($names);
if (isset($names['minimal'])) {
// If the expert ("Minimal") core profile is present, put it in front of
// any non-core profiles rather than including it with them alphabetically,
// since the other profiles might be intended to group together in a
// particular way.
$names = array('minimal' => $names['minimal']) + $names;
}
if (isset($names['standard'])) {
// If the default ("Standard") core profile is present, put it at the very
// top of the list. This profile will have its radio button pre-selected,
// so we want it to always appear at the top.
$names = array('standard' => $names['standard']) + $names;
}
foreach ($names as $profile => $name) {
$form['profile'][$name] = array(
'#type' => 'radio',
'#value' => 'standard',
'#return_value' => $profile,
'#title' => $name,
'#description' => isset($profiles[$profile]['description']) ? $profiles[$profile]['description'] : '',
'#parents' => array('profile'),
);
}
$form['actions'] = array('#type' => 'actions');
$form['actions']['submit'] = array(
'#type' => 'submit',
'#value' => st('Save and continue'),
);
return $form;
}
/**
* Find all .po files for the current profile.
*/
function install_find_locales($profilename) {
$locales = file_scan_directory('./profiles/' . $profilename . '/translations', '/\.po$/', array('recurse' => FALSE));
array_unshift($locales, (object) array('name' => 'en'));
foreach ($locales as $key => $locale) {
// The locale (file name) might be drupal-7.2.cs.po instead of cs.po.
$locales[$key]->langcode = preg_replace('!^(.+\.)?([^\.]+)$!', '\2', $locale->name);
// Language codes cannot exceed 12 characters to fit into the {languages}
// table.
if (strlen($locales[$key]->langcode) > 12) {
unset($locales[$key]);
}
}
return $locales;
}
/**
* Installation task; select which locale to use for the current profile.
*
* @param $install_state
* An array of information about the current installation state. The chosen
* locale will be added here, if it was not already selected previously, as
* will a list of all available locales.
*
* @return
* For interactive installations, a form or other page output allowing the
* locale to be selected or providing information about locale selection, if
* a locale has not been chosen. Otherwise, an exception is thrown if a
* locale cannot be chosen automatically.
*/
function install_select_locale(&$install_state) {
// Find all available locales.
$profilename = $install_state['parameters']['profile'];
$locales = install_find_locales($profilename);
$install_state['locales'] += $locales;
if (!empty($_POST['locale'])) {
foreach ($locales as $locale) {
if ($_POST['locale'] == $locale->langcode) {
$install_state['parameters']['locale'] = $locale->langcode;
return;
}
}
}
if (empty($install_state['parameters']['locale'])) {
// If only the built-in (English) language is available, and we are
// performing an interactive installation, inform the user that the
// installer can be localized. Otherwise we assume the user knows what he
// is doing.
if (count($locales) == 1) {
if ($install_state['interactive']) {
drupal_set_title(st('Choose language'));
if (!empty($install_state['parameters']['localize'])) {
$output = '<p>Follow these steps to translate Drupal into your language:</p>';
$output .= '<ol>';
$output .= '<li>Download a translation from the <a href="http://localize.drupal.org/download" target="_blank">translation server</a>.</li>';
$output .= '<li>Place it into the following directory:
<pre>
/profiles/' . $profilename . '/translations/
</pre></li>';
$output .= '</ol>';
$output .= '<p>For more information on installing Drupal in different languages, visit the <a href="http://drupal.org/localize" target="_blank">drupal.org handbook page</a>.</p>';
$output .= '<p>How should the installation continue?</p>';
$output .= '<ul>';
$output .= '<li><a href="install.php?profile=' . $profilename . '">Reload the language selection page after adding translations</a></li>';
$output .= '<li><a href="install.php?profile=' . $profilename . '&locale=en">Continue installation in English</a></li>';
$output .= '</ul>';
}
else {
include_once DRUPAL_ROOT . '/includes/form.inc';
$elements = drupal_get_form('install_select_locale_form', $locales, $profilename);
$output = drupal_render($elements);
}
return $output;
}
// One language, but not an interactive installation. Assume the user
// knows what he is doing.
$locale = current($locales);
$install_state['parameters']['locale'] = $locale->name;
return;
}
else {
// Allow profile to pre-select the language, skipping the selection.
$function = $profilename . '_profile_details';
if (function_exists($function)) {
$details = $function();
if (isset($details['language'])) {
foreach ($locales as $locale) {
if ($details['language'] == $locale->name) {
$install_state['parameters']['locale'] = $locale->name;
return;
}
}
}
}
// We still don't have a locale, so display a form for selecting one.
// Only do this in the case of interactive installations, since this is
// not a real form with submit handlers (the database isn't even set up
// yet), rather just a convenience method for setting parameters in the
// URL.
if ($install_state['interactive']) {
drupal_set_title(st('Choose language'));
include_once DRUPAL_ROOT . '/includes/form.inc';
$elements = drupal_get_form('install_select_locale_form', $locales, $profilename);
return drupal_render($elements);
}
else {
throw new Exception(st('Sorry, you must select a language to continue the installation.'));
}
}
}
}
/**
* Form API array definition for language selection.
*/
function install_select_locale_form($form, &$form_state, $locales, $profilename) {
include_once DRUPAL_ROOT . '/includes/iso.inc';
$languages = _locale_get_predefined_list();
foreach ($locales as $locale) {
$name = $locale->langcode;
if (isset($languages[$name])) {
$name = $languages[$name][0] . (isset($languages[$name][1]) ? ' ' . st('(@language)', array('@language' => $languages[$name][1])) : '');
}
$form['locale'][$locale->langcode] = array(
'#type' => 'radio',
'#return_value' => $locale->langcode,
'#default_value' => $locale->langcode == 'en' ? 'en' : '',
'#title' => $name . ($locale->langcode == 'en' ? ' ' . st('(built-in)') : ''),
'#parents' => array('locale')
);
}
if (count($locales) == 1) {
$form['help'] = array(
'#markup' => '<p><a href="install.php?profile=' . $profilename . '&localize=true">' . st('Learn how to install Drupal in other languages') . '</a></p>',
);
}
$form['actions'] = array('#type' => 'actions');
$form['actions']['submit'] = array(
'#type' => 'submit',
'#value' => st('Save and continue'),
);
return $form;
}
/**
* Indicates that there are no profiles available.
*/
function install_no_profile_error() {
drupal_set_title(st('No profiles available'));
return st('We were unable to find any installation profiles. Installation profiles tell us what modules to enable and what schema to install in the database. A profile is necessary to continue with the installation process.');
}
/**
* Indicates that Drupal has already been installed.
*/
function install_already_done_error() {
global $base_url;
drupal_set_title(st('Drupal already installed'));
return st('<ul><li>To start over, you must empty your existing database.</li><li>To install to a different database, edit the appropriate <em>settings.php</em> file in the <em>sites</em> folder.</li><li>To upgrade an existing installation, proceed to the <a href="@base-url/update.php">update script</a>.</li><li>View your <a href="@base-url">existing site</a>.</li></ul>', array('@base-url' => $base_url));
}
/**
* Installation task; load information about the chosen profile.
*
* @param $install_state
* An array of information about the current installation state. The loaded
* profile information will be added here, or an exception will be thrown if
* the profile cannot be loaded.
*/
function install_load_profile(&$install_state) {
$profile_file = DRUPAL_ROOT . '/profiles/' . $install_state['parameters']['profile'] . '/' . $install_state['parameters']['profile'] . '.profile';
if (file_exists($profile_file)) {
include_once $profile_file;
$install_state['profile_info'] = install_profile_info($install_state['parameters']['profile'], $install_state['parameters']['locale']);
}
else {
throw new Exception(st('Sorry, the profile you have chosen cannot be loaded.'));
}
}
/**
* Installation task; perform a full bootstrap of Drupal.
*
* @param $install_state
* An array of information about the current installation state.
*/
function install_bootstrap_full(&$install_state) {
drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
}
/**
* Installation task; install required modules via a batch process.
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* The batch definition.
*/
function install_profile_modules(&$install_state) {
$modules = variable_get('install_profile_modules', array());
$files = system_rebuild_module_data();
variable_del('install_profile_modules');
// Always install required modules first. Respect the dependencies between
// the modules.
$required = array();
$non_required = array();
// Although the profile module is marked as required, it needs to go after
// every dependency, including non-required ones. So clear its required
// flag for now to allow it to install late.
$files[$install_state['parameters']['profile']]->info['required'] = FALSE;
// Add modules that other modules depend on.
foreach ($modules as $module) {
if ($files[$module]->requires) {
$modules = array_merge($modules, array_keys($files[$module]->requires));
}
}
$modules = array_unique($modules);
foreach ($modules as $module) {
if (!empty($files[$module]->info['required'])) {
$required[$module] = $files[$module]->sort;
}
else {
$non_required[$module] = $files[$module]->sort;
}
}
arsort($required);
arsort($non_required);
$operations = array();
foreach ($required + $non_required as $module => $weight) {
$operations[] = array('_install_module_batch', array($module, $files[$module]->info['name']));
}
$batch = array(
'operations' => $operations,
'title' => st('Installing @drupal', array('@drupal' => drupal_install_profile_distribution_name())),
'error_message' => st('The installation has encountered an error.'),
'finished' => '_install_profile_modules_finished',
);
return $batch;
}
/**
* Installation task; import languages via a batch process.
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* The batch definition, if there are language files to import.
*/
function install_import_locales(&$install_state) {
include_once DRUPAL_ROOT . '/includes/locale.inc';
$install_locale = $install_state['parameters']['locale'];
include_once DRUPAL_ROOT . '/includes/iso.inc';
$predefined = _locale_get_predefined_list();
if (!isset($predefined[$install_locale])) {
// Drupal does not know about this language, so we prefill its values with
// our best guess. The user will be able to edit afterwards.
locale_add_language($install_locale, $install_locale, $install_locale, LANGUAGE_LTR, '', '', TRUE, TRUE);
}
else {
// A known predefined language, details will be filled in properly.
locale_add_language($install_locale, NULL, NULL, NULL, '', '', TRUE, TRUE);
}
// Collect files to import for this language.
$batch = locale_batch_by_language($install_locale, NULL);
if (!empty($batch)) {
// Remember components we cover in this batch set.
variable_set('install_locale_batch_components', $batch['#components']);
return $batch;
}
}
/**
* Installation task; configure settings for the new site.
*
* @param $form_state
* An associative array containing the current state of the form.
* @param $install_state
* An array of information about the current installation state.
*
* @return
* The form API definition for the site configuration form.
*/
function install_configure_form($form, &$form_state, &$install_state) {
drupal_set_title(st('Configure site'));
// Warn about settings.php permissions risk
$settings_dir = conf_path();
$settings_file = $settings_dir . '/settings.php';
// Check that $_POST is empty so we only show this message when the form is
// first displayed, not on the next page after it is submitted. (We do not
// want to repeat it multiple times because it is a general warning that is
// not related to the rest of the installation process; it would also be
// especially out of place on the last page of the installer, where it would
// distract from the message that the Drupal installation has completed
// successfully.)
if (empty($_POST) && (!drupal_verify_install_file(DRUPAL_ROOT . '/' . $settings_file, FILE_EXIST|FILE_READABLE|FILE_NOT_WRITABLE) || !drupal_verify_install_file(DRUPAL_ROOT . '/' . $settings_dir, FILE_NOT_WRITABLE, 'dir'))) {
drupal_set_message(st('All necessary changes to %dir and %file have been made, so you should remove write permissions to them now in order to avoid security risks. If you are unsure how to do so, consult the <a href="@handbook_url">online handbook</a>.', array('%dir' => $settings_dir, '%file' => $settings_file, '@handbook_url' => 'http://drupal.org/server-permissions')), 'warning');
}
drupal_add_js(drupal_get_path('module', 'system') . '/system.js');
// Add JavaScript time zone detection.
drupal_add_js('misc/timezone.js');
// We add these strings as settings because JavaScript translation does not
// work on install time.
drupal_add_js(array('copyFieldValue' => array('edit-site-mail' => array('edit-account-mail'))), 'setting');
drupal_add_js('jQuery(function () { Drupal.cleanURLsInstallCheck(); });', 'inline');
// Add JS to show / hide the 'Email administrator about site updates' elements
drupal_add_js('jQuery(function () { Drupal.hideEmailAdministratorCheckbox() });', 'inline');
// Build menu to allow clean URL check.
menu_rebuild();
// Cache a fully-built schema. This is necessary for any invocation of
// index.php because: (1) setting cache table entries requires schema
// information, (2) that occurs during bootstrap before any module are
// loaded, so (3) if there is no cached schema, drupal_get_schema() will
// try to generate one but with no loaded modules will return nothing.
//
// This logically could be done during the 'install_finished' task, but the
// clean URL check requires it now.
drupal_get_schema(NULL, TRUE);
// Return the form.
return _install_configure_form($form, $form_state, $install_state);
}
/**
* Installation task; import remaining languages via a batch process.
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* The batch definition, if there are language files to import.
*/
function install_import_locales_remaining(&$install_state) {
include_once DRUPAL_ROOT . '/includes/locale.inc';
// Collect files to import for this language. Skip components already covered
// in the initial batch set.
$install_locale = $install_state['parameters']['locale'];
$batch = locale_batch_by_language($install_locale, NULL, variable_get('install_locale_batch_components', array()));
// Remove temporary variable.
variable_del('install_locale_batch_components');
return $batch;
}
/**
* Installation task; perform final steps and display a 'finished' page.
*
* @param $install_state
* An array of information about the current installation state.
*
* @return
* A message informing the user that the installation is complete.
*/
function install_finished(&$install_state) {
drupal_set_title(st('@drupal installation complete', array('@drupal' => drupal_install_profile_distribution_name())), PASS_THROUGH);
$messages = drupal_set_message();
$output = '<p>' . st('Congratulations, you installed @drupal!', array('@drupal' => drupal_install_profile_distribution_name())) . '</p>';
$output .= '<p>' . (isset($messages['error']) ? st('Review the messages above before visiting <a href="@url">your new site</a>.', array('@url' => url(''))) : st('<a href="@url">Visit your new site</a>.', array('@url' => url('')))) . '</p>';
// Flush all caches to ensure that any full bootstraps during the installer
// do not leave stale cached data, and that any content types or other items
// registered by the install profile are registered correctly.
drupal_flush_all_caches();
// Remember the profile which was used.
variable_set('install_profile', drupal_get_profile());
// Install profiles are always loaded last
db_update('system')
->fields(array('weight' => 1000))
->condition('type', 'module')
->condition('name', drupal_get_profile())
->execute();
// Cache a fully-built schema.
drupal_get_schema(NULL, TRUE);
// Run cron to populate update status tables (if available) so that users
// will be warned if they've installed an out of date Drupal version.
// Will also trigger indexing of profile-supplied content or feeds.
drupal_cron_run();
return $output;
}
/**
* Batch callback for batch installation of modules.
*/
function _install_module_batch($module, $module_name, &$context) {
// Install and enable the module right away, so that the module will be
// loaded by drupal_bootstrap in subsequent batch requests, and other
// modules possibly depending on it can safely perform their installation
// steps.
module_enable(array($module), FALSE);
$context['results'][] = $module;
$context['message'] = st('Installed %module module.', array('%module' => $module_name));
}
/**
* 'Finished' callback for module installation batch.
*/
function _install_profile_modules_finished($success, $results, $operations) {
// Flush all caches to complete the module installation process. Subsequent
// installation tasks will now have full access to the profile's modules.
drupal_flush_all_caches();
}
/**
* Checks installation requirements and reports any errors.
*/
function install_check_requirements($install_state) {
$profile = $install_state['parameters']['profile'];
// Check the profile requirements.
$requirements = drupal_check_profile($profile);
// If Drupal is not set up already, we need to create a settings file.
if (!$install_state['settings_verified']) {
$writable = FALSE;
$conf_path = './' . conf_path(FALSE, TRUE);
$settings_file = $conf_path . '/settings.php';
$default_settings_file = './sites/default/default.settings.php';
$file = $conf_path;
$exists = FALSE;
// Verify that the directory exists.
if (drupal_verify_install_file($conf_path, FILE_EXIST, 'dir')) {
// Check if a settings.php file already exists.
$file = $settings_file;
if (drupal_verify_install_file($settings_file, FILE_EXIST)) {
// If it does, make sure it is writable.
$writable = drupal_verify_install_file($settings_file, FILE_READABLE|FILE_WRITABLE);
$exists = TRUE;
}
}
// If default.settings.php does not exist, or is not readable, throw an
// error.
if (!drupal_verify_install_file($default_settings_file, FILE_EXIST|FILE_READABLE)) {
$requirements['default settings file exists'] = array(
'title' => st('Default settings file'),
'value' => st('The default settings file does not exist.'),
'severity' => REQUIREMENT_ERROR,
'description' => st('The @drupal installer requires that the %default-file file not be modified in any way from the original download.', array('@drupal' => drupal_install_profile_distribution_name(), '%default-file' => $default_settings_file)),
);
}
// Otherwise, if settings.php does not exist yet, we can try to copy
// default.settings.php to create it.
elseif (!$exists) {
$copied = drupal_verify_install_file($conf_path, FILE_EXIST|FILE_WRITABLE, 'dir') && @copy($default_settings_file, $settings_file);
if ($copied) {
// If the new settings file has the same owner as default.settings.php,
// this means default.settings.php is owned by the webserver user.
// This is an inherent security weakness because it allows a malicious
// webserver process to append arbitrary PHP code and then execute it.
// However, it is also a common configuration on shared hosting, and
// there is nothing Drupal can do to prevent it. In this situation,
// having settings.php also owned by the webserver does not introduce
// any additional security risk, so we keep the file in place.
if (fileowner($default_settings_file) === fileowner($settings_file)) {
$writable = drupal_verify_install_file($settings_file, FILE_READABLE|FILE_WRITABLE);
$exists = TRUE;
}
// If settings.php and default.settings.php have different owners, this
// probably means the server is set up "securely" (with the webserver
// running as its own user, distinct from the user who owns all the
// Drupal PHP files), although with either a group or world writable
// sites directory. Keeping settings.php owned by the webserver would
// therefore introduce a security risk. It would also cause a usability
// problem, since site owners who do not have root access to the file
// system would be unable to edit their settings file later on. We
// therefore must delete the file we just created and force the
// administrator to log on to the server and create it manually.
else {
$deleted = @drupal_unlink($settings_file);
// We expect deleting the file to be successful (since we just
// created it ourselves above), but if it fails somehow, we set a
// variable so we can display a one-time error message to the
// administrator at the bottom of the requirements list. We also try
// to make the file writable, to eliminate any conflicting error
// messages in the requirements list.
$exists = !$deleted;
if ($exists) {
$settings_file_ownership_error = TRUE;
$writable = drupal_verify_install_file($settings_file, FILE_READABLE|FILE_WRITABLE);
}
}
}
}
// If settings.php does not exist, throw an error.
if (!$exists) {
$requirements['settings file exists'] = array(
'title' => st('Settings file'),
'value' => st('The settings file does not exist.'),
'severity' => REQUIREMENT_ERROR,
'description' => st('The @drupal installer requires that you create a settings file as part of the installation process. Copy the %default_file file to %file. More details about installing Drupal are available in <a href="@install_txt">INSTALL.txt</a>.', array('@drupal' => drupal_install_profile_distribution_name(), '%file' => $file, '%default_file' => $default_settings_file, '@install_txt' => base_path() . 'INSTALL.txt')),
);
}
else {
$requirements['settings file exists'] = array(
'title' => st('Settings file'),
'value' => st('The %file file exists.', array('%file' => $file)),
);
// If settings.php is not writable, throw an error.
if (!$writable) {
$requirements['settings file writable'] = array(
'title' => st('Settings file'),
'value' => st('The settings file is not writable.'),
'severity' => REQUIREMENT_ERROR,
'description' => st('The @drupal installer requires write permissions to %file during the installation process. If you are unsure how to grant file permissions, consult the <a href="@handbook_url">online handbook</a>.', array('@drupal' => drupal_install_profile_distribution_name(), '%file' => $file, '@handbook_url' => 'http://drupal.org/server-permissions')),
);
}
else {
$requirements['settings file'] = array(
'title' => st('Settings file'),
'value' => st('The settings file is writable.'),
);
}
if (!empty($settings_file_ownership_error)) {
$requirements['settings file ownership'] = array(
'title' => st('Settings file'),
'value' => st('The settings file is owned by the web server.'),
'severity' => REQUIREMENT_ERROR,
'description' => st('The @drupal installer failed to create a settings file with proper file ownership. Log on to your web server, remove the existing %file file, and create a new one by copying the %default_file file to %file. More details about installing Drupal are available in <a href="@install_txt">INSTALL.txt</a>. If you have problems with the file permissions on your server, consult the <a href="@handbook_url">online handbook</a>.', array('@drupal' => drupal_install_profile_distribution_name(), '%file' => $file, '%default_file' => $default_settings_file, '@install_txt' => base_path() . 'INSTALL.txt', '@handbook_url' => 'http://drupal.org/server-permissions')),
);
}
}
}
return $requirements;
}
/**
* Forms API array definition for site configuration.
*/
function _install_configure_form($form, &$form_state, &$install_state) {
include_once DRUPAL_ROOT . '/includes/locale.inc';
$form['site_information'] = array(
'#type' => 'fieldset',
'#title' => st('Site information'),
'#collapsible' => FALSE,
);
$form['site_information']['site_name'] = array(
'#type' => 'textfield',
'#title' => st('Site name'),
'#required' => TRUE,
'#weight' => -20,
);
$form['site_information']['site_mail'] = array(
'#type' => 'textfield',
'#title' => st('Site e-mail address'),
'#default_value' => ini_get('sendmail_from'),
'#description' => st("Automated e-mails, such as registration information, will be sent from this address. Use an address ending in your site's domain to help prevent these e-mails from being flagged as spam."),
'#required' => TRUE,
'#weight' => -15,
);
$form['admin_account'] = array(
'#type' => 'fieldset',
'#title' => st('Site maintenance account'),
'#collapsible' => FALSE,
);
$form['admin_account']['account']['#tree'] = TRUE;
$form['admin_account']['account']['name'] = array('#type' => 'textfield',
'#title' => st('Username'),
'#maxlength' => USERNAME_MAX_LENGTH,
'#description' => st('Spaces are allowed; punctuation is not allowed except for periods, hyphens, and underscores.'),
'#required' => TRUE,
'#weight' => -10,
'#attributes' => array('class' => array('username')),
);
$form['admin_account']['account']['mail'] = array('#type' => 'textfield',
'#title' => st('E-mail address'),
'#maxlength' => EMAIL_MAX_LENGTH,
'#required' => TRUE,
'#weight' => -5,
);
$form['admin_account']['account']['pass'] = array(
'#type' => 'password_confirm',
'#required' => TRUE,
'#size' => 25,
'#weight' => 0,
);
$form['server_settings'] = array(
'#type' => 'fieldset',
'#title' => st('Server settings'),
'#collapsible' => FALSE,
);
$countries = country_get_list();
$form['server_settings']['site_default_country'] = array(
'#type' => 'select',
'#title' => st('Default country'),
'#empty_value' => '',
'#default_value' => variable_get('site_default_country', NULL),
'#options' => $countries,
'#description' => st('Select the default country for the site.'),
'#weight' => 0,
);
$form['server_settings']['date_default_timezone'] = array(
'#type' => 'select',
'#title' => st('Default time zone'),
'#default_value' => date_default_timezone_get(),
'#options' => system_time_zones(),
'#description' => st('By default, dates in this site will be displayed in the chosen time zone.'),
'#weight' => 5,
'#attributes' => array('class' => array('timezone-detect')),
);
$form['server_settings']['clean_url'] = array(
'#type' => 'hidden',
'#default_value' => 0,
'#attributes' => array('id' => 'edit-clean-url', 'class' => array('install')),
);
$form['update_notifications'] = array(
'#type' => 'fieldset',
'#title' => st('Update notifications'),
'#collapsible' => FALSE,
);
$form['update_notifications']['update_status_module'] = array(
'#type' => 'checkboxes',
'#options' => array(
1 => st('Check for updates automatically'),
2 => st('Receive e-mail notifications'),
),
'#default_value' => array(1, 2),
'#description' => st('The system will notify you when updates and important security releases are available for installed components. Anonymous information about your site is sent to <a href="@drupal">Drupal.org</a>.', array('@drupal' => 'http://drupal.org')),
'#weight' => 15,
);
$form['actions'] = array('#type' => 'actions');
$form['actions']['submit'] = array(
'#type' => 'submit',
'#value' => st('Save and continue'),
'#weight' => 15,
);
return $form;
}
/**
* Forms API validate for the site configuration form.
*/
function install_configure_form_validate($form, &$form_state) {
if ($error = user_validate_name($form_state['values']['account']['name'])) {
form_error($form['admin_account']['account']['name'], $error);
}
if ($error = user_validate_mail($form_state['values']['account']['mail'])) {
form_error($form['admin_account']['account']['mail'], $error);
}
if ($error = user_validate_mail($form_state['values']['site_mail'])) {
form_error($form['site_information']['site_mail'], $error);
}
}
/**
* Forms API submit for the site configuration form.
*/
function install_configure_form_submit($form, &$form_state) {
global $user;
variable_set('site_name', $form_state['values']['site_name']);
variable_set('site_mail', $form_state['values']['site_mail']);
variable_set('date_default_timezone', $form_state['values']['date_default_timezone']);
variable_set('site_default_country', $form_state['values']['site_default_country']);
// Enable update.module if this option was selected.
if ($form_state['values']['update_status_module'][1]) {
module_enable(array('update'), FALSE);
// Add the site maintenance account's email address to the list of
// addresses to be notified when updates are available, if selected.
if ($form_state['values']['update_status_module'][2]) {
variable_set('update_notify_emails', array($form_state['values']['account']['mail']));
}
}
// We precreated user 1 with placeholder values. Let's save the real values.
$account = user_load(1);
$merge_data = array('init' => $form_state['values']['account']['mail'], 'roles' => !empty($account->roles) ? $account->roles : array(), 'status' => 1, 'timezone' => $form_state['values']['date_default_timezone']);
user_save($account, array_merge($form_state['values']['account'], $merge_data));
// Load global $user and perform final login tasks.
$user = user_load(1);
user_login_finalize();
if (isset($form_state['values']['clean_url'])) {
variable_set('clean_url', $form_state['values']['clean_url']);
}
// Record when this install ran.
variable_set('install_time', $_SERVER['REQUEST_TIME']);
}
