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PHP Version : 7.4.28
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Directory : /home/montcaro/public_html/includes/
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Server : Apache System : Linux copper.netcy.com 2.6.32-754.27.1.el6.centos.plus.x86_64 #1 SMP Thu Jan 30 13:54:25 UTC 2020 x86_64 User : montcaro ( 581) PHP Version : 7.4.28 Disable Function : NONE Directory : /home/montcaro/public_html/includes/ |
<?php
/**
* @file
* Batch processing API for processes to run in multiple HTTP requests.
*
* Note that batches are usually invoked by form submissions, which is
* why the core interaction functions of the batch processing API live in
* form.inc.
*
* @see form.inc
* @see batch_set()
* @see batch_process()
* @see batch_get()
*/
/**
* Loads a batch from the database.
*
* @param $id
* The ID of the batch to load. When a progressive batch is being processed,
* the relevant ID is found in $_REQUEST['id'].
*
* @return
* An array representing the batch, or FALSE if no batch was found.
*/
function batch_load($id) {
$batch = db_query("SELECT batch FROM {batch} WHERE bid = :bid AND token = :token", array(
':bid' => $id,
':token' => drupal_get_token($id),
))->fetchField();
if ($batch) {
return unserialize($batch);
}
return FALSE;
}
/**
* Renders the batch processing page based on the current state of the batch.
*
* @see _batch_shutdown()
*/
function _batch_page() {
$batch = &batch_get();
if (!isset($_REQUEST['id'])) {
return FALSE;
}
// Retrieve the current state of the batch.
if (!$batch) {
$batch = batch_load($_REQUEST['id']);
if (!$batch) {
drupal_set_message(t('No active batch.'), 'error');
drupal_goto();
}
}
// Register database update for the end of processing.
drupal_register_shutdown_function('_batch_shutdown');
// Add batch-specific CSS.
foreach ($batch['sets'] as $batch_set) {
if (isset($batch_set['css'])) {
foreach ($batch_set['css'] as $css) {
drupal_add_css($css);
}
}
}
$op = isset($_REQUEST['op']) ? $_REQUEST['op'] : '';
$output = NULL;
switch ($op) {
case 'start':
$output = _batch_start();
break;
case 'do':
// JavaScript-based progress page callback.
_batch_do();
break;
case 'do_nojs':
// Non-JavaScript-based progress page.
$output = _batch_progress_page_nojs();
break;
case 'finished':
$output = _batch_finished();
break;
}
return $output;
}
/**
* Initializes the batch processing.
*
* JavaScript-enabled clients are identified by the 'has_js' cookie set in
* drupal.js. If no JavaScript-enabled page has been visited during the current
* user's browser session, the non-JavaScript version is returned.
*/
function _batch_start() {
if (isset($_COOKIE['has_js']) && $_COOKIE['has_js']) {
return _batch_progress_page_js();
}
else {
return _batch_progress_page_nojs();
}
}
/**
* Outputs a batch processing page with JavaScript support.
*
* This initializes the batch and error messages. Note that in JavaScript-based
* processing, the batch processing page is displayed only once and updated via
* AHAH requests, so only the first batch set gets to define the page title.
* Titles specified by subsequent batch sets are not displayed.
*
* @see batch_set()
* @see _batch_do()
*/
function _batch_progress_page_js() {
$batch = batch_get();
$current_set = _batch_current_set();
drupal_set_title($current_set['title'], PASS_THROUGH);
// Merge required query parameters for batch processing into those provided by
// batch_set() or hook_batch_alter().
$batch['url_options']['query']['id'] = $batch['id'];
$js_setting = array(
'batch' => array(
'errorMessage' => $current_set['error_message'] . '<br />' . $batch['error_message'],
'initMessage' => $current_set['init_message'],
'uri' => url($batch['url'], $batch['url_options']),
),
);
drupal_add_js($js_setting, 'setting');
drupal_add_library('system', 'drupal.batch');
return '<div id="progress"></div>';
}
/**
* Does one execution pass with JavaScript and returns progress to the browser.
*
* @see _batch_progress_page_js()
* @see _batch_process()
*/
function _batch_do() {
// HTTP POST required.
if ($_SERVER['REQUEST_METHOD'] != 'POST') {
drupal_set_message(t('HTTP POST is required.'), 'error');
drupal_set_title(t('Error'));
return '';
}
// Perform actual processing.
list($percentage, $message) = _batch_process();
drupal_json_output(array('status' => TRUE, 'percentage' => $percentage, 'message' => $message));
}
/**
* Outputs a batch processing page without JavaScript support.
*
* @see _batch_process()
*/
function _batch_progress_page_nojs() {
$batch = &batch_get();
$current_set = _batch_current_set();
drupal_set_title($current_set['title'], PASS_THROUGH);
$new_op = 'do_nojs';
if (!isset($batch['running'])) {
// This is the first page so we return some output immediately.
$percentage = 0;
$message = $current_set['init_message'];
$batch['running'] = TRUE;
}
else {
// This is one of the later requests; do some processing first.
// Error handling: if PHP dies due to a fatal error (e.g. a nonexistent
// function), it will output whatever is in the output buffer, followed by
// the error message.
ob_start();
$fallback = $current_set['error_message'] . '<br />' . $batch['error_message'];
$fallback = theme('maintenance_page', array('content' => $fallback, 'show_messages' => FALSE));
// We strip the end of the page using a marker in the template, so any
// additional HTML output by PHP shows up inside the page rather than below
// it. While this causes invalid HTML, the same would be true if we didn't,
// as content is not allowed to appear after </html> anyway.
list($fallback) = explode('<!--partial-->', $fallback);
print $fallback;
// Perform actual processing.
list($percentage, $message) = _batch_process($batch);
if ($percentage == 100) {
$new_op = 'finished';
}
// PHP did not die; remove the fallback output.
ob_end_clean();
}
// Merge required query parameters for batch processing into those provided by
// batch_set() or hook_batch_alter().
$batch['url_options']['query']['id'] = $batch['id'];
$batch['url_options']['query']['op'] = $new_op;
$url = url($batch['url'], $batch['url_options']);
$element = array(
'#tag' => 'meta',
'#attributes' => array(
'http-equiv' => 'Refresh',
'content' => '0; URL=' . $url,
),
);
drupal_add_html_head($element, 'batch_progress_meta_refresh');
return theme('progress_bar', array('percent' => $percentage, 'message' => $message));
}
/**
* Processes sets in a batch.
*
* If the batch was marked for progressive execution (default), this executes as
* many operations in batch sets until an execution time of 1 second has been
* exceeded. It will continue with the next operation of the same batch set in
* the next request.
*
* @return
* An array containing a completion value (in percent) and a status message.
*/
function _batch_process() {
$batch = &batch_get();
$current_set = &_batch_current_set();
// Indicate that this batch set needs to be initialized.
$set_changed = TRUE;
// If this batch was marked for progressive execution (e.g. forms submitted by
// drupal_form_submit()), initialize a timer to determine whether we need to
// proceed with the same batch phase when a processing time of 1 second has
// been exceeded.
if ($batch['progressive']) {
timer_start('batch_processing');
}
if (empty($current_set['start'])) {
$current_set['start'] = microtime(TRUE);
}
$queue = _batch_queue($current_set);
while (!$current_set['success']) {
// If this is the first time we iterate this batch set in the current
// request, we check if it requires an additional file for functions
// definitions.
if ($set_changed && isset($current_set['file']) && is_file($current_set['file'])) {
include_once DRUPAL_ROOT . '/' . $current_set['file'];
}
$task_message = '';
// Assume a single pass operation and set the completion level to 1 by
// default.
$finished = 1;
if ($item = $queue->claimItem()) {
list($function, $args) = $item->data;
// Build the 'context' array and execute the function call.
$batch_context = array(
'sandbox' => &$current_set['sandbox'],
'results' => &$current_set['results'],
'finished' => &$finished,
'message' => &$task_message,
);
call_user_func_array($function, array_merge($args, array(&$batch_context)));
if ($finished >= 1) {
// Make sure this step is not counted twice when computing $current.
$finished = 0;
// Remove the processed operation and clear the sandbox.
$queue->deleteItem($item);
$current_set['count']--;
$current_set['sandbox'] = array();
}
}
// When all operations in the current batch set are completed, browse
// through the remaining sets, marking them 'successfully processed'
// along the way, until we find a set that contains operations.
// _batch_next_set() executes form submit handlers stored in 'control'
// sets (see form_execute_handlers()), which can in turn add new sets to
// the batch.
$set_changed = FALSE;
$old_set = $current_set;
while (empty($current_set['count']) && ($current_set['success'] = TRUE) && _batch_next_set()) {
$current_set = &_batch_current_set();
$current_set['start'] = microtime(TRUE);
$set_changed = TRUE;
}
// At this point, either $current_set contains operations that need to be
// processed or all sets have been completed.
$queue = _batch_queue($current_set);
// If we are in progressive mode, break processing after 1 second.
if ($batch['progressive'] && timer_read('batch_processing') > 1000) {
// Record elapsed wall clock time.
$current_set['elapsed'] = round((microtime(TRUE) - $current_set['start']) * 1000, 2);
break;
}
}
if ($batch['progressive']) {
// Gather progress information.
// Reporting 100% progress will cause the whole batch to be considered
// processed. If processing was paused right after moving to a new set,
// we have to use the info from the new (unprocessed) set.
if ($set_changed && isset($current_set['queue'])) {
// Processing will continue with a fresh batch set.
$remaining = $current_set['count'];
$total = $current_set['total'];
$progress_message = $current_set['init_message'];
$task_message = '';
}
else {
// Processing will continue with the current batch set.
$remaining = $old_set['count'];
$total = $old_set['total'];
$progress_message = $old_set['progress_message'];
}
// Total progress is the number of operations that have fully run plus the
// completion level of the current operation.
$current = $total - $remaining + $finished;
$percentage = _batch_api_percentage($total, $current);
$elapsed = isset($current_set['elapsed']) ? $current_set['elapsed'] : 0;
$values = array(
'@remaining' => $remaining,
'@total' => $total,
'@current' => floor($current),
'@percentage' => $percentage,
'@elapsed' => format_interval($elapsed / 1000),
// If possible, estimate remaining processing time.
'@estimate' => ($current > 0) ? format_interval(($elapsed * ($total - $current) / $current) / 1000) : '-',
);
$message = strtr($progress_message, $values);
if (!empty($message)) {
$message .= '<br />';
}
if (!empty($task_message)) {
$message .= $task_message;
}
return array($percentage, $message);
}
else {
// If we are not in progressive mode, the entire batch has been processed.
return _batch_finished();
}
}
/**
* Formats the percent completion for a batch set.
*
* @param $total
* The total number of operations.
* @param $current
* The number of the current operation. This may be a floating point number
* rather than an integer in the case of a multi-step operation that is not
* yet complete; in that case, the fractional part of $current represents the
* fraction of the operation that has been completed.
*
* @return
* The properly formatted percentage, as a string. We output percentages
* using the correct number of decimal places so that we never print "100%"
* until we are finished, but we also never print more decimal places than
* are meaningful.
*
* @see _batch_process()
*/
function _batch_api_percentage($total, $current) {
if (!$total || $total == $current) {
// If $total doesn't evaluate as true or is equal to the current set, then
// we're finished, and we can return "100".
$percentage = "100";
}
else {
// We add a new digit at 200, 2000, etc. (since, for example, 199/200
// would round up to 100% if we didn't).
$decimal_places = max(0, floor(log10($total / 2.0)) - 1);
do {
// Calculate the percentage to the specified number of decimal places.
$percentage = sprintf('%01.' . $decimal_places . 'f', round($current / $total * 100, $decimal_places));
// When $current is an integer, the above calculation will always be
// correct. However, if $current is a floating point number (in the case
// of a multi-step batch operation that is not yet complete), $percentage
// may be erroneously rounded up to 100%. To prevent that, we add one
// more decimal place and try again.
$decimal_places++;
} while ($percentage == '100');
}
return $percentage;
}
/**
* Returns the batch set being currently processed.
*/
function &_batch_current_set() {
$batch = &batch_get();
return $batch['sets'][$batch['current_set']];
}
/**
* Retrieves the next set in a batch.
*
* If there is a subsequent set in this batch, assign it as the new set to
* process and execute its form submit handler (if defined), which may add
* further sets to this batch.
*
* @return
* TRUE if a subsequent set was found in the batch.
*/
function _batch_next_set() {
$batch = &batch_get();
if (isset($batch['sets'][$batch['current_set'] + 1])) {
$batch['current_set']++;
$current_set = &_batch_current_set();
if (isset($current_set['form_submit']) && ($function = $current_set['form_submit']) && function_exists($function)) {
// We use our stored copies of $form and $form_state to account for
// possible alterations by previous form submit handlers.
$function($batch['form_state']['complete form'], $batch['form_state']);
}
return TRUE;
}
}
/**
* Ends the batch processing.
*
* Call the 'finished' callback of each batch set to allow custom handling of
* the results and resolve page redirection.
*/
function _batch_finished() {
$batch = &batch_get();
// Execute the 'finished' callbacks for each batch set, if defined.
foreach ($batch['sets'] as $batch_set) {
if (isset($batch_set['finished'])) {
// Check if the set requires an additional file for function definitions.
if (isset($batch_set['file']) && is_file($batch_set['file'])) {
include_once DRUPAL_ROOT . '/' . $batch_set['file'];
}
if (function_exists($batch_set['finished'])) {
$queue = _batch_queue($batch_set);
$operations = $queue->getAllItems();
$batch_set['finished']($batch_set['success'], $batch_set['results'], $operations, format_interval($batch_set['elapsed'] / 1000));
}
}
}
// Clean up the batch table and unset the static $batch variable.
if ($batch['progressive']) {
db_delete('batch')
->condition('bid', $batch['id'])
->execute();
foreach ($batch['sets'] as $batch_set) {
if ($queue = _batch_queue($batch_set)) {
$queue->deleteQueue();
}
}
}
$_batch = $batch;
$batch = NULL;
// Clean-up the session. Not needed for CLI updates.
if (isset($_SESSION)) {
unset($_SESSION['batches'][$batch['id']]);
if (empty($_SESSION['batches'])) {
unset($_SESSION['batches']);
}
}
// Redirect if needed.
if ($_batch['progressive']) {
// Revert the 'destination' that was saved in batch_process().
if (isset($_batch['destination'])) {
$_GET['destination'] = $_batch['destination'];
}
// Determine the target path to redirect to.
if (!isset($_batch['form_state']['redirect'])) {
if (isset($_batch['redirect'])) {
$_batch['form_state']['redirect'] = $_batch['redirect'];
}
else {
$_batch['form_state']['redirect'] = $_batch['source_url'];
}
}
// Use drupal_redirect_form() to handle the redirection logic.
drupal_redirect_form($_batch['form_state']);
// If no redirection happened, redirect to the originating page. In case the
// form needs to be rebuilt, save the final $form_state for
// drupal_build_form().
if (!empty($_batch['form_state']['rebuild'])) {
$_SESSION['batch_form_state'] = $_batch['form_state'];
}
$function = $_batch['redirect_callback'];
if (function_exists($function)) {
$function($_batch['source_url'], array('query' => array('op' => 'finish', 'id' => $_batch['id'])));
}
}
}
/**
* Shutdown function: Stores the current batch data for the next request.
*
* @see _batch_page()
* @see drupal_register_shutdown_function()
*/
function _batch_shutdown() {
if ($batch = batch_get()) {
db_update('batch')
->fields(array('batch' => serialize($batch)))
->condition('bid', $batch['id'])
->execute();
}
}