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<?php
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// $Id: js.install,v 1.1 2008/06/02 02:17:51 sun Exp $
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/**
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* @file
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* Ensures JavaScript callback handler has been setup properly.
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*/
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/**
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* Implementation of hook_requirements().
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*/
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function js_requirements($phase) {
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$requirements = array();
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$t = get_t();
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switch ($phase) {
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case 'install':
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case 'runtime':
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$path = drupal_get_path('module', 'js') .'/js.php';
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$title = $t('JavaScript callback handler');
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// Warn about missing js.php in root directoy.
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if (file_exists($path) && file_exists('js.php') && md5_file($path) != md5_file('js.php')) {
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$requirements['js'] = array(
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'title' => $title,
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'description' => $t('In order for JavaScript callbacks to work correctly, please copy the file at %mod and use it to replace %core.', array('%core' => 'js.php', '%mod' => $path)),
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'severity' => $phase == 'install' ? REQUIREMENT_WARNING : REQUIREMENT_ERROR,
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'value' => $t('Please copy js.php'),
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);
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}
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// Warn about moved (instead of copied) js.php.
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else if (!file_exists($path)) {
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$requirements['js'] = array(
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'title' => $title,
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'description' => $t('You probably <em>moved</em> rather than <em>copied</em> the js.php file from %mod to %core. You should leave a copy of this file in the module directory so that you will not lose this file when you upgrade to another revision of Drupal.', array('%core' => 'js.php', '%mod' => $path)),
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'severity' => $phase == 'install' ? REQUIREMENT_WARNING : REQUIREMENT_ERROR,
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'value' => $t('js.php no longer exists in the js directory'),
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);
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}
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else if ($phase == 'runtime') {
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// Warn about disabled clean URLs.
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if (!variable_get('clean_url', FALSE)) {
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$requirements['js'] = array(
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'title' => $title,
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'description' => $t('In order for JavaScript callbacks to work correctly, please <a href="!clean-urls">enable clean URLs</a>', array('!clean-urls' => url('admin/settings/clean-urls'))),
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'severity' => REQUIREMENT_ERROR,
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'value' => $t('Enable clean URLs'),
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);
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}
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// Warn about missing RewriteRule in .htaccess.
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else if (strpos(file_get_contents('.htaccess'), 'js.php') === FALSE) {
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$requirements['js'] = array(
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'title' => $title,
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'description' => $t('In order for increasing performance of JavaScript callbacks, please add the required <a href="!readme">RewriteRule</a>', array('!readme' => url(drupal_get_path('module', 'js') .'/README.txt'))),
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'severity' => REQUIREMENT_WARNING,
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'value' => $t('Add Apache RewriteRule to .htaccess'),
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);
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}
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// Return positive status message.
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else {
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$requirements['js'] = array(
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'title' => $title,
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'description' => t('The JavaScript callback handler has been installed correctly.',
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array('%core' => 'js.php')
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),
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'severity' => REQUIREMENT_OK,
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'value' => $t('Installed correctly'),
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);
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}
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}
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}
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return $requirements;
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}
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