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<?php
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// $Id: twitter.module,v 1.10.2.2 2009/06/11 02:50:07 walkah Exp $
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/**
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* Implementation of hook_meu()
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*/
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function twitter_menu() {
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$items = array();
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$items['twitter/oauth'] = array(
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'title' => 'Twitter',
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'access callback' => TRUE,
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'page callback' => 'drupal_get_form',
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'page arguments' => array('twitter_oauth_callback'),
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'type' => MENU_CALLBACK,
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'file' => 'twitter.pages.inc',
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);
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$items['admin/settings/twitter'] = array(
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'title' => 'Twitter setup',
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'description' => 'Twitter module settings',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('twitter_admin_form'),
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'access arguments' => array('administer site configuration'),
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'file' => 'twitter.pages.inc'
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);
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$items['user/%user_category/edit/twitter'] = array(
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'title' => 'Twitter accounts',
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'page callback' => 'twitter_user_settings',
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'page arguments' => array(1),
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'access arguments' => array('add twitter accounts'),
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'load arguments' => array('%map', '%index'),
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'weight' => 10,
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'file' => 'twitter.pages.inc',
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'type' => MENU_LOCAL_TASK,
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);
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return $items;
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}
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/**
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* Implementation of hook_perm()
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*/
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function twitter_perm() {
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return array('add twitter accounts', 'use global twitter account');
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}
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/**
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* Implementation of hook_user().
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*/
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function twitter_user($op, &$edit, &$account, $category = NULL) {
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switch ($op) {
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case 'categories':
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return array(
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array(
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'name' => 'twitter',
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'title' => 'Twitter accounts',
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'weight' => 3,
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),
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);
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}
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}
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function twitter_theme() {
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return array(
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'twitter_account_list_form' => array(
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'arguments' => array('form' => NULL),
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)
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);
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}
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/**
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* Very lightweight helper function to generate a TinyURL for a given post.
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*/
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function twitter_shorten_url($url) {
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if (function_exists('custom_twitter_shorten_url')) {
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return custom_twitter_shorten_url($url);
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}
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else {
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$response = drupal_http_request("http://tinyurl.com/api-create.php?url=" . $url);
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if ($response->code == 200) {
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return $response->data;
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}
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else {
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return $url;
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}
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}
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}
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/**
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* Implementation of hook_cron()
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*
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* Imports new Twitter statuses for site users, and deletes expired tweets.
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*/
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function twitter_cron() {
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if (!variable_get('twitter_import', TRUE)) {
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return;
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}
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module_load_include('inc', 'twitter');
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// Pull up a list of Twitter accounts that are flagged for updating,
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// sorted by how long it's been since we last updated them. This ensures
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// that the most out-of-date accounts get updated first.
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$sql = "SELECT twitter_uid FROM {twitter_account} WHERE import = 1 ORDER BY last_refresh ASC";
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$results = db_query_range($sql, 0, 20);
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while ($account = db_fetch_object($results)) {
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twitter_fetch_user_timeline($account->twitter_uid);
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}
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// Nuke old statuses.
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if ($age = variable_get('twitter_expire', 0)) {
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db_query('DELETE FROM {twitter} WHERE created_time < %d', time() - $age);
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}
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}
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/**
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* Implementation of hook_filter().
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* - Twitter @username converter:
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* .Converts Twitter-style @usernames into links to Twitter account pages.
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* - Twitter #hashtag converter:
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* .Converts Twitter-style #hashtags into links to hashtags.org.
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*/
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function twitter_filter($op, $delta = 0, $format = -1, $text = '') {
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switch ($op) {
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case 'list':
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return array(0 => t('Twitter @username converter'), 1 => t('Twitter #hashtag converter'));
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case 'description':
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switch ($delta) {
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case 0:
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return t('Converts Twitter-style @usernames into links to Twitter account pages.');
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case 1:
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return t('Converts Twitter-style #hashtags into links to hashtags.org.');
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default:
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return;
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}
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case 'process':
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switch ($delta) {
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case 0:
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return twitter_link_filter($text);
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case 1:
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return twitter_link_filter($text, '#', 'http://search.twitter.com/search?q=%23');
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default:
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return $text;
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}
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default:
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return $text;
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}
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}
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/**
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* Implementation of hook_filter_tips().
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*/
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function twitter_filter_tips($delta, $format, $long = FALSE) {
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global $base_url;
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switch ($delta) {
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case 0:
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return t('Twitter-style @usersnames are linked to their Twitter account pages.');
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case 1:
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return t('Twitter-style #hashtags are linked to !url.', array('!url' => '<a href="http://search.twitter.com/">search.twitter.com</a>'));
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}
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}
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/**
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* This helper function converts Twitter-style @usernames and #hashtags into
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* actual links.
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*/
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function twitter_link_filter($text, $prefix = '@', $destination = 'http://twitter.com/') {
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$matches = array(
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'/\>' . $prefix . '([a-z0-9_]{0,15})/i',
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'/^' . $prefix . '([a-z0-9_]{0,15})/i',
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'/(\s+)' . $prefix . '([a-z0-9_]{0,15})/i',
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);
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$replacements = array(
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'><a href="' . $destination . '${1}">' . $prefix . '${1}</a>',
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'<a href="' . $destination . '${1}">' . $prefix . '${1}</a>',
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'${1}<a href="' . $destination . '${2}">' . $prefix . '${2}</a>',
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);
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return preg_replace($matches, $replacements, $text);
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}
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/**
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* An implementation of hook_twitter_accounts. We want to move this into a
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* separate module eventually, but sticking the code here and using a hook
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* lets other modules solve the 'what accounts can a user post with' problem
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* in cleaner ways.
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*/
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function twitter_twitter_accounts($drupal_user, $full_access = FALSE) {
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$accounts = array();
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if (user_access('use global twitter account') &&
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($name = variable_get('twitter_global_name', NULL)) &&
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($pass = variable_get('twitter_global_password', NULL))) {
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$accounts[$name] = array(
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'screen_name' => $name,
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'password' => $pass,
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);
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}
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$sql = "SELECT * FROM {twitter_account} WHERE uid = %d";
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if ($full_access) {
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$sql .= " AND password IS NOT NULL";
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}
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$args = array($drupal_user->uid);
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$results = db_query($sql, $args);
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while ($account = db_fetch_array($results)) {
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$accounts[$account['screen_name']] = $account;
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}
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return $accounts;
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}
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function _twitter_use_oauth() {
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if (!module_exists('oauth')) {
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return FALSE;
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}
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return (variable_get('twitter_consumer_key', '') && variable_get('twitter_consumer_secret', ''));
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}
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/**
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* Implementation of hook_views_api.
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* Notifies the Views module that we're compatible with a particular API revision.
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*/
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function twitter_views_api() {
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return array('api' => 2);
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}
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