' . t('A captcha is a tool to fight automated spam submission of forms (e.g. user registration forms, comment forms, guestbook forms, etc.) by malicious users. A captcha is an extra field (or several fields) on a form presented to the user. It represents a challenge, which should be easy for a normal human to solve (e.g. a simple math problem), but hard enough to keep automated scripts and spam bots out.') . '
'; + return ''. t('A captcha is a tool to fight automated spam submission of forms (e.g. user registration forms, comment forms, guestbook forms, etc.) by malicious users. A captcha is an extra field (or several fields) on a form presented to the user. It represents a challenge, which should be easy for a normal human to solve (e.g. a simple math problem), but hard enough to keep automated scripts and spam bots out.') .'
'; case 'admin/user/captcha': case 'admin/user/captcha/captcha': case 'admin/user/captcha/captcha/settings': @@ -93,12 +93,12 @@ * challenge and $challenge the name of the challenge type. * (It also includes a 'none' => 'none' option) */ -function _captcha_available_challenge_types(){ +function _captcha_available_challenge_types() { $captcha_challenges['none'] = 'none'; - foreach(module_implements('captcha') as $module) { + foreach (module_implements('captcha') as $module) { $result = call_user_func_array($module .'_captcha', 'list'); if (is_array($result)) { - foreach($result as $challenge) { + foreach ($result as $challenge) { $captcha_challenges["$module/$challenge"] = "$challenge ($module)"; } } @@ -139,13 +139,13 @@ case 'disable': // disable the captcha for the form: set the module and type to NULL db_query("UPDATE {captcha_points} SET module = NULL, type = NULL WHERE form_id = '%s'", $form_id); - drupal_set_message(t('Disabled captcha for form %form_id.', array('%form_id'=>$form_id))); + drupal_set_message(t('Disabled captcha for form %form_id.', array('%form_id' => $form_id))); // goto the captcha adminstration or alternative destination if present in URI drupal_goto('admin/user/captcha'); break; case 'delete': db_query("DELETE FROM {captcha_points} WHERE form_id = '%s'", $form_id); - drupal_set_message(t('Deleted captcha for form %form_id.', array('%form_id'=>$form_id))); + drupal_set_message(t('Deleted captcha for form %form_id.', array('%form_id' => $form_id))); // goto the captcha adminstration or alternative destination if present in URI drupal_goto('admin/user/captcha'); break; @@ -200,7 +200,7 @@ ); // if a form_id was given as argument of this form builder, highlight the captcha type select widget if ($form_id == $captcha_point->form_id) { - $form['captcha_types'][$captcha_point->form_id]['captcha_type']['#attributes'] = array('class'=>'error'); + $form['captcha_types'][$captcha_point->form_id]['captcha_type']['#attributes'] = array('class' => 'error'); } // additional operations $form['captcha_types'][$captcha_point->form_id]['operations'] = array( @@ -221,7 +221,7 @@ foreach ($langs['name'] as $lang_code => $lang_name) { $form['captcha_descriptions']["captcha_description_$lang_code"] = array( '#type' => 'textfield', - '#title' => t('Captcha description for %lang_name (locale %lang_code)', array('%lang_name'=>$lang_name, '%lang_code'=>$lang_code)), + '#title' => t('Captcha description for %lang_name (locale %lang_code)', array('%lang_name' => $lang_name, '%lang_code' => $lang_code)), '#default_value' => _captcha_get_description($lang_code), ); } @@ -308,7 +308,7 @@ // Visitor does not have permission to skip the captcha challenge // Do not present captcha if not captcha-persistent and user has already solved a captcha for this form - if(!variable_get('captcha_persistence', TRUE) && ($_SESSION['captcha'][$form_id]['success'] === TRUE)) { + if (!variable_get('captcha_persistence', TRUE) && ($_SESSION['captcha'][$form_id]['success'] === TRUE)) { return; } @@ -328,7 +328,7 @@ //The selected module returned nothing, maybe it is disabled or it's wrong, we should watchdog that and then quit. watchdog('captcha', t('Captcha problem: hook_captcha() of module %module returned nothing when trying to retrieve captcha type %type for form %form_id.', - array('%type' => $captcha_point->type, '%module' => $captcha_point->module, '%form_id'=> $form_id)), + array('%type' => $captcha_point->type, '%module' => $captcha_point->module, '%form_id' => $form_id)), WATCHDOG_ERROR); return; } @@ -358,7 +358,7 @@ // in a new (POST) request. Consequently the right captcha solution would be // overwritten just before validation. The pre_render functions are not run // before validation and are the right place to store the solution in $_SESSION. - $form['captcha']['captcha_solution'] = array ( + $form['captcha']['captcha_solution'] = array( '#type' => 'value', '#value' => $captcha['solution'], ); @@ -368,7 +368,7 @@ // couple of times before submitting them. The solution of the captcha of // each of these form instances will be stored at the pre_render phase in // $_SESSION['captcha'][$form_id][$captcha_token] - $form['captcha']['captcha_token'] = array ( + $form['captcha']['captcha_token'] = array( '#type' => 'hidden', '#value' => md5(mt_rand()), ); @@ -503,7 +503,7 @@ function captcha_pre_render_place_captcha($form_id, &$form) { // search the weights of the buttons in the form $button_weights = array(); - foreach(element_children($form) as $key) { + foreach (element_children($form) as $key) { if ($form[$key]['#type'] == 'submit' || $form[$key]['#type'] == 'button') { $button_weights[] = $form[$key]['#weight']; } @@ -541,10 +541,10 @@ else { // generate a list with examples of the available challenges $output = t('This page gives an overview of all available captcha types, generated with their current settings.'); - foreach(module_implements('captcha') as $module) { + foreach (module_implements('captcha') as $module) { $challenges = call_user_func_array($module .'_captcha', 'list'); if ($challenges) { - foreach($challenges as $challenge) { + foreach ($challenges as $challenge) { // generate captcha challenge $captcha = call_user_func_array($module .'_captcha', array('generate', $challenge)); // build form @@ -573,7 +573,7 @@ * Default implementation of hook_captcha */ function captcha_captcha($op, $captcha_type='') { - switch($op) { + switch ($op) { case 'list': return array('Math'); case 'generate': @@ -583,7 +583,7 @@ $x = mt_rand(1, $answer); $y = $answer - $x; $result['solution'] = "$answer"; - $result['form']['captcha_response'] = array ( + $result['form']['captcha_response'] = array( '#type' => 'textfield', '#title' => t('Math Question'), '#description' => t('Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.'),