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<?php
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// $Id: twitter_actions.module,v 1.1.2.3 2009/05/25 19:35:38 walkah Exp $
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/**
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* @file
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* Exposes Drupal actions for sending Twitter messages.
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*/
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/**
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* Implementation of hook_action_info().
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*/
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function twitter_actions_action_info() {
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return array(
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'twitter_actions_set_status_action' => array(
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'type' => 'system',
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'description' => t('Post a message to Twitter'),
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'configurable' => TRUE,
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'hooks' => array(
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'nodeapi' => array('view', 'insert', 'update', 'delete'),
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'comment' => array('view', 'insert', 'update', 'delete'),
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'user' => array('view', 'insert', 'update', 'delete', 'login'),
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'cron' => array('run'),
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),
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),
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);
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}
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/**
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* Return a form definition so the Send email action can be configured.
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*
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* @param $context
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* Default values (if we are editing an existing action instance).
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* @return
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* Form definition.
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*/
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function twitter_actions_set_status_action_form($context = array()) {
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// Set default values for form.
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$context += array(
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'screen_name' => '',
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'password' => '',
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'message' => '',
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);
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$form['screen_name'] = array(
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'#type' => 'textfield',
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'#title' => t('Twitter account name'),
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'#default_value' => $context['screen_name'],
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'#size' => 25,
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'#required' => TRUE,
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);
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$form['password'] = array(
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'#title' => t('Twitter password'),
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'#type' => 'password',
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'#size' => 25,
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'#required' => TRUE,
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);
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$form['message'] = array(
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'#type' => 'textarea',
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'#title' => t('Message'),
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'#default_value' => $context['message'],
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'#cols' => '80',
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'#rows' => '3',
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'#description' => t('The message that should be sent. You may include the following variables: %site_name, %username, %node_url, %node_type, %title, %teaser, %body. Not all variables will be available in all contexts.'),
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'#required' => TRUE,
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);
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return $form;
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}
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function twitter_actions_set_status_action_validate($form, $form_state) {
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module_load_include('inc', 'twitter');
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$verify = FALSE;
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$pass = $form_state['values']['password'];
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$name = $form_state['values']['screen_name'];
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module_load_include('inc', 'twitter');
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$valid = twitter_authenticate($name, $pass);
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if (!$valid) {
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form_set_error('password', t('Twitter authentication failed. Please check your account name and try again.'));
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}
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}
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function twitter_actions_set_status_action_submit($form, $form_state) {
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$form_values = $form_state['values'];
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// Process the HTML form to store configuration. The keyed array that
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// we return will be serialized to the database.
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$params = array(
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'screen_name' => $form_values['screen_name'],
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'password' => $form_values['password'],
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'message' => $form_values['message'],
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);
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return $params;
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}
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/**
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* Implementation of a configurable Drupal action.
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* Sends an email.
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*/
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function twitter_actions_set_status_action($object, $context) {
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global $user;
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$variables['%site_name'] = variable_get('site_name', 'Drupal');
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switch ($context['hook']) {
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case 'nodeapi':
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// Because this is not an action of type 'node' the node
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// will not be passed as $object, but it will still be available
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// in $context.
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$node = $context['node'];
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break;
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// The comment hook provides nid, in $context.
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case 'comment':
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$comment = $context['comment'];
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$node = node_load($comment->nid);
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case 'user':
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// Because this is not an action of type 'user' the user
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// object is not passed as $object, but it will still be available
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// in $context.
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$account = $context['account'];
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if (isset($context['node'])) {
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$node = $context['node'];
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}
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elseif ($context['recipient'] == '%author') {
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// If we don't have a node, we don't have a node author.
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watchdog('error', 'Cannot use %author token in this context.');
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return;
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}
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break;
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case 'taxonomy':
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$account = $user;
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$vocabulary = taxonomy_vocabulary_load($object->vid);
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$variables = array_merge($variables, array(
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'%term_name' => $object->name,
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'%term_description' => $object->description,
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'%term_id' => $object->tid,
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'%vocabulary_name' => $vocabulary->name,
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'%vocabulary_description' => $vocabulary->description,
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'%vocabulary_id' => $vocabulary->vid,
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)
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);
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break;
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default:
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// We are being called directly.
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$node = $object;
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}
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if (isset($node)) {
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if (!isset($account)) {
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$account = user_load(array('uid' => $node->uid));
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}
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if ($recipient == '%author') {
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$recipient = $account->mail;
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}
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}
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$variables['%username'] = $account->name;
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// Node-based variable translation is only available if we have a node.
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if (isset($node) && is_object($node)) {
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$variables = array_merge($variables, array(
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'%uid' => $node->uid,
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'%node_url' => url('node/'. $node->nid, array('absolute' => TRUE)),
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'%node_type' => node_get_types('name', $node),
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'%title' => $node->title,
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'%teaser' => $node->teaser,
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'%body' => $node->body
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)
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);
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}
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$message = strtr($context['message'], $variables);
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module_load_include('inc', 'twitter');
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twitter_set_status($context['screen_name'], $context['password'], $message);
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}
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