function advagg_advagg_save_aggregate_alter

Implements hook_advagg_save_aggregate_alter().

Used to add in a .gz file if none exits.

Related topics

File

./advagg.advagg.inc, line 20

Code

function advagg_advagg_save_aggregate_alter(array &$files_to_save, array $aggregate_settings, array $other_parameters) {
    // * @param array $files_to_save
    // *   Array($uri => $contents).
    // * @param array $aggregate_settings
    // *   Array of settings.
    // * @param array $other_parameters
    // *   Array of containing $files and $type.
    $file_types = array();
    // Handle gzip.
    if (!empty($aggregate_settings['variables']['advagg_gzip'])) {
        // Use zopfli_encode if it exists.
        // See https://github.com/kjdev/php-ext-zopfli
        if (function_exists('zopfli_encode') && defined('ZOPFLI_GZIP') && empty($aggregate_settings['variables']['advagg_no_zopfli'])) {
            $file_types['.gz'] = array(
                'zopfli_encode',
                15,
                constant('ZOPFLI_GZIP'),
            );
        }
        else {
            $file_types['.gz'] = array(
                'gzencode',
                9,
                FORCE_GZIP,
            );
        }
    }
    // Handle brotli.
    // See https://github.com/kjdev/php-ext-brotli
    if (!empty($aggregate_settings['variables']['advagg_brotli']) && defined('BROTLI_TEXT') && function_exists('brotli_compress')) {
        $file_types['.br'] = array(
            'brotli_compress',
            11,
            constant('BROTLI_TEXT'),
        );
    }
    if (empty($file_types)) {
        return;
    }
    // Special S3 handling.
    $s3fs = FALSE;
    $files_to_save_keys = array_keys($files_to_save);
    foreach ($files_to_save_keys as $uri) {
        $wrapper = file_stream_wrapper_get_instance_by_uri($uri);
        if ($wrapper && get_class($wrapper) === 'S3fsStreamWrapper') {
            $s3fs = TRUE;
            break;
        }
    }
    foreach ($file_types as $ext => $settings) {
        // See if a file already exists with this extension.
        $ext_exists = FALSE;
        foreach ($files_to_save as $uri => $contents) {
            // See if this uri contains $ext near the end of it.
            if (strlen($uri) > 91 + strlen(ADVAGG_SPACE) * 3) {
                $pos = strripos($uri, $ext, 91 + strlen(ADVAGG_SPACE) * 3);
            }
            else {
                $pos = strripos($uri, $ext);
            }
            if (!empty($pos)) {
                $len = strlen($uri);
                // $ext file exists, exit loop.
                if ($pos == $len - 3) {
                    $ext_exists = TRUE;
                    break;
                }
            }
        }
        // If a $ext file does not exist, create one.
        if (!$ext_exists) {
            // Use the first file in the array.
            $data = reset($files_to_save);
            $uri = key($files_to_save);
            // Compress it and add it to the $files_to_save array.
            $callback = $settings[0];
            $settings[0] = $data;
            $compressed = call_user_func_array($callback, $settings);
            if (!empty($compressed)) {
                if ($s3fs && $ext === '.gz') {
                    // Only serve gzip files from S3.
                    $files_to_save[$uri] = $compressed;
                }
                elseif ($s3fs && $ext === '.br' && !isset($file_types['.gz'])) {
                    // Only serve br files from S3.
                    $files_to_save[$uri] = $compressed;
                }
                else {
                    $files_to_save[$uri . $ext] = $compressed;
                }
            }
        }
    }
}