Now all modules are in core modules folder
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351
modules/advagg/advagg.missing.inc
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351
modules/advagg/advagg.missing.inc
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<?php
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/**
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* @file
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* Advanced aggregation module; 404 handler.
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*
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*/
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/**
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* Menu Callback; regenerates a missing css file.
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*/
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function advagg_missing_css() {
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ignore_user_abort();
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// Try to regenerate missing file
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$msg = advagg_missing_regenerate();
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// If here send out fast 404.
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advagg_missing_fast404($msg);
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}
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/**
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* Menu Callback; regenerates a missing js file.
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*/
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function advagg_missing_js() {
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ignore_user_abort();
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// Try to regenerate missing file
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$msg = advagg_missing_regenerate();
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// If here send out fast 404.
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advagg_missing_fast404($msg);
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}
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/**
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* regenerates a missing css file.
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*
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* @param $filename
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* filename
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* @param $type
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* css or js
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* @return
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* false if bundle couldn't be generated.
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*/
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function advagg_missing_regenerate() {
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global $base_path, $conf;
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// Get filename from request.
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$arg = arg();
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$filename = array_pop($arg);
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$filename = explode('?', $filename);
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$filename = array_shift($filename);
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$data = advagg_get_bundle_from_filename($filename);
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if (is_array($data)) {
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list($type, $md5, $counter) = $data;
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}
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else {
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return $data;
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}
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$_GET['redirect_counter'] = isset($_GET['redirect_counter']) ? intval($_GET['redirect_counter']) : 0;
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if ($_GET['redirect_counter'] > 5) {
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watchdog('advagg', 'This request could not generate correctly. Loop detected. Request data: %info', array('%info' => $_GET['q']));
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return t('In a Loop.');
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}
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// Counter in database.
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$counter_in_db = db_result(db_query("SELECT counter FROM {advagg_bundles} WHERE bundle_md5 = '%s'", $md5));
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if ($counter_in_db === FALSE) {
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return t('Not a valid bundle.');
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}
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// Cast counter as int
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$counter_in_db = intval($counter_in_db);
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$counter = intval($counter);
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// Set file(s) in cache to FALSE.
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$arg[] = $filename;
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cache_set(implode('/', $arg), FALSE, 'cache_advagg', TRUE);
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advagg_missing_remove_cache($md5);
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// Build filepath.
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list($css_path, $js_path) = advagg_get_root_files_dir();
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if ($type == 'js') {
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$file_type_path = $js_path;
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}
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if ($type == 'css') {
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$file_type_path = $css_path;
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}
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$new_filename = advagg_build_filename($type, $md5, $counter);
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$filepath = $file_type_path . '/' . $new_filename;
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// Only process if we got an older counter.
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// If we have an out of range counter see if a simlar file exists and serve
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// that up.
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if ($counter > $counter_in_db || $counter < 0) {
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$new_filename = advagg_build_filename($type, $md5, $counter_in_db);
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$filepath = $file_type_path . '/' . $new_filename;
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advagg_missing_send_file($filepath, advagg_build_uri($filepath), $type);
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exit;
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}
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// Break connection and do generation in the background.
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if (!empty($_GET['generator'])) {
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advagg_missing_async_opp($md5 . ' ' . $counter);
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}
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// Rebuild file.
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$conf['advagg_async_generation'] = FALSE;
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$good = advagg_rebuild_bundle($md5, $counter, TRUE);
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if (!$good) {
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watchdog('advagg', 'This request could not generate correctly. Aggregate not generated. Request data: %info', array('%info' => $_GET['q']));
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return t('Rebuild Failed.');
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}
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// Serve direct or redirect to file.
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$_GET['redirect_counter']++;
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$uri = $base_path . $_GET['q'] . '?redirect_counter=' . $_GET['redirect_counter'];
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advagg_missing_send_file($filepath, $uri, $type);
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exit;
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}
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/**
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* Send the file or send a 307 redirect.
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*
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* @param $filepath
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* filename
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* @param $uri
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* css or js
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*/
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function advagg_missing_send_file($filepath, $uri, $type) {
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if (!headers_sent()) {
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// Code from file_download.
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if (file_exists($filepath)) {
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$headers = module_invoke_all('file_download', $filepath, $type);
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if ($key = array_search(-1, $headers)) {
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unset($headers[$key]);
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}
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// Remove all previously set Cache-Control headers, because we're going to
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// override it. Since multiple Cache-Control headers might have been set,
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// simply setting a new, overriding header isn't enough: that would only
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// override the *last* Cache-Control header. Yay for PHP!
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foreach ($headers as $key => $header) {
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if (strpos($header, 'Cache-Control:') === 0) {
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unset($headers[$key]);
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}
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elseif (strpos($header, 'ETag:') === 0) {
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unset($headers[$key]);
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}
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}
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if (function_exists('header_remove')) {
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header_remove('Cache-Control');
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header_remove('ETag');
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}
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else {
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drupal_set_header("Cache-Control:");
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drupal_set_header("Cache-Control:");
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drupal_set_header("ETag:");
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drupal_set_header("ETag:");
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}
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// Set a far future Cache-Control header (480 weeks), which prevents
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// intermediate caches from transforming the data and allows any
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// intermediate cache to cache it, since it's marked as a public resource.
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$headers[] = "Cache-Control: max-age=290304000, no-transform, public";
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if (count($headers)) {
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advagg_missing_file_transfer($filepath, $headers);
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}
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}
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// advagg_missing_file_transfer didn't run/send data, redirect via header.
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header('Location: ' . $uri, TRUE, 307);
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usleep(250000); // Sleep for 250ms
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}
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}
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/**
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* Set cache value to FALSE.
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*
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* @param $bundle_md5
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* Bundle's machine name.
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*/
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function advagg_missing_remove_cache($bundle_md5) {
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$files = array();
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$results = db_query("SELECT filename, filetype FROM {advagg_files} AS af INNER JOIN {advagg_bundles} AS ab USING ( filename_md5 ) WHERE bundle_md5 = '%s' ORDER BY porder ASC", $bundle_md5);
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while ($row = db_fetch_array($results)) {
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$files[] = $row['filename'];
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$type = $row['filetype'];
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}
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list($css_path, $js_path) = advagg_get_root_files_dir();
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if ($type == 'js') {
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$file_type_path = $js_path;
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}
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if ($type == 'css') {
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$file_type_path = $css_path;
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}
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$filenames = advagg_get_filename($files, $type, '', $bundle_md5);
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if (!empty($filenames)) {
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foreach ($filenames as $key => $info) {
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$filename = $info['filename'];
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$filepath = $file_type_path . '/' . $filename;
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cache_set($filepath, FALSE, 'cache_advagg', TRUE);
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}
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}
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}
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/**
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* Output text & set php in async mode.
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*
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* @param $output
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* string - Text to output to open connection.
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* @param $wait
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* bool - Wait 1 second?
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* @param $content_type
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* string - Content type header.
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* @param $length
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* int - Content length.
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*/
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function advagg_missing_async_opp($output, $wait = TRUE, $content_type = "text/html; charset=utf-8", $length = 0) {
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if (headers_sent()) {
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return FALSE;
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}
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// Calculate Content Length
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if ($length == 0) {
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$output .= "\n";
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$length = (advagg_missing_strlen($output) -1);
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}
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// Prime php for background operations
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$loop = 0;
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while (ob_get_level() && $loop < 25) {
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ob_end_clean();
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$loop++;
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}
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header("Connection: close");
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ignore_user_abort();
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// Output headers & data
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ob_start();
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header("Content-type: " . $content_type);
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header("Expires: Sun, 19 Nov 1978 05:00:00 GMT");
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header("Cache-Control: no-cache");
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header("Cache-Control: must-revalidate");
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header("Content-Length: " . $length);
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header("Connection: close");
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print($output);
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ob_end_flush();
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flush();
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// wait for 1 second
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if ($wait) {
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sleep(1);
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}
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// text returned and connection closed.
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// Do background processing. Time taken after should not effect page load times.
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return TRUE;
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}
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/**
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* Get the length of a string in bytes
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*
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* @param $string
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* get string length
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*/
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function advagg_missing_strlen($string) {
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if (function_exists('mb_strlen')) {
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return mb_strlen($string, '8bit');
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}
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else {
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return strlen($string);
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}
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}
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/**
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* Transfer file using http to client. Pipes a file through Drupal to the
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* client.
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*
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* @param $source File to transfer.
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* @param $headers An array of http headers to send along with file.
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*/
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function advagg_missing_file_transfer($source, $headers) {
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$source = advagg_missing_file_create_path($source);
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$fd = fopen($source, 'rb');
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// Return if we can't open the file. Will try a 307 in browser to send file.
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if (!$fd) {
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return;
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}
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// Clear the buffer.
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if (ob_get_level()) {
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ob_end_clean();
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}
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// Add in headers.
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foreach ($headers as $header) {
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// To prevent HTTP header injection, we delete new lines that are
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// not followed by a space or a tab.
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// See http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2
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$header = preg_replace('/\r?\n(?!\t| )/', '', $header);
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drupal_set_header($header);
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}
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// Transfer file in 8096 byte chunks.
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while (!feof($fd)) {
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print fread($fd, 8096);
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}
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fclose($fd);
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exit();
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}
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/**
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* Make sure the destination is a complete path and resides in the file system
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* directory, if it is not prepend the file system directory.
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*
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* @param $dest A string containing the path to verify. If this value is
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* omitted, Drupal's 'files' directory will be used.
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* @return A string containing the path to file, with file system directory
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* appended if necessary, or FALSE if the path is invalid (i.e. outside the
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* configured 'files' or temp directories).
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*/
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function advagg_missing_file_create_path($dest = 0) {
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list($css_path, $js_path) = advagg_get_root_files_dir();
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$valid_paths = array();
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$valid_paths[] = file_directory_path();
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$valid_paths[] = $css_path;
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$valid_paths[] = $js_path;
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foreach ($valid_paths as $file_path) {
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if (!$dest) {
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return $file_path;
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}
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// file_check_location() checks whether the destination is inside the Drupal files directory.
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if (file_check_location($dest, $file_path)) {
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return $dest;
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}
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// check if the destination is instead inside the Drupal temporary files directory.
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elseif (file_check_location($dest, file_directory_temp())) {
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return $dest;
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}
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// Not found, try again with prefixed directory path.
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elseif (file_check_location($file_path . '/' . $dest, $file_path)) {
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return $file_path . '/' . $dest;
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}
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}
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// File not found.
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return FALSE;
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}
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