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   1  <?php
   2  /**
   3   * zeList Filters and Actions
   4   */
   5  
   6  /**
   7   * It's the main hook on WordPress, starting with $wp_query->get_posts()
   8   * It tests if any zelist query var is in the request and (if there are) launch zelist_query
   9   */
  10  function zelist_pre_get_posts($wp_query) {
  11  
  12    //$debug = true;
  13    if(!is_home() && !is_page() && !is_tax() && !isset($wp_query->query_vars['ls']))
  14    return false;
  15  
  16    //global $wp_rewrite;  echo '<pre>'.print_r($wp_rewrite,1).'</pre>';
  17    //if($debug) echo '<pre>'.print_r($wp_query,1).'</pre>';
  18  
  19  
  20    // not the main query : if you want to get links outside of the main query, use zelist_get_bookmarks() which calls directly zelist_query
  21    global $wp_the_query;
  22    if($wp_the_query !== $wp_query) {
  23      return false;
  24    }
  25  
  26    if(is_page()) { // is page but not zelist_root
  27      if($debug) echo " is page ! ";
  28      $page_id = ($wp_query->query_vars['page_id']) ? $wp_query->query_vars['page_id'] : $wp_query->queried_object->ID;
  29      if($debug) echo " > page id $page_id";
  30  
  31      if($page_id != get_option('zelist_root')) return false;
  32  
  33    }
  34  
  35    $wp_query->query_vars['page_id'] = $zelist_root = get_option('zelist_root');
  36    $wp_query->is_page = 1;
  37  
  38  
  39    //$page_id = $wp_query->queried_object_id;
  40    //if($page_id && $page_id != $zelist_root)  return false;
  41  
  42    if(!$page_id) $page_id = get_option('page_on_front');
  43    $taxonomy = get_query_var('taxonomy');
  44    $link_id = get_query_var('link');
  45    $link_name = get_query_var('link_name');
  46    $link_category = get_query_var('link_category');
  47    $link_category_name = get_query_var('link_category_name');
  48    $link_search = get_query_var('ls');
  49    $tag = get_query_var('tag');
  50  
  51    //$debug = true;
  52    //if($debug) echo '<pre>'.print_r($wp_query,1).'</pre>';
  53  
  54    //if($debug) { global $wp_rewrite; echo '<pre>'.print_r($wp_rewrite,1).'</pre>'; }
  55    //if($debug) { global $wp;    echo '<pre>'.print_r($wp,1).'</pre>'; }
  56    if($debug) echo "<br />zelist root $zelist_root
  57      <br />pageid $page_id
  58      <br />taxonomy $taxonomy
  59      <br />link_id $link_id
  60      <br />link name $link_name
  61      <br />link_category $link_category
  62      <br />link_category_name $link_category_name
  63      <br />link_search $link_search
  64      ";
  65    if($debug && is_page()) echo "<br />\nis page ! ";
  66    if($debug && is_home()) echo "<br />\nis home ! ";
  67  
  68    $it_is_links = false;
  69  
  70    if($debug) echo "<br />\ntaxonomy = '$taxonomy '";
  71  
  72    if( // link
  73    $taxonomy && $taxonomy == 'link'
  74    || !empty($link_name)
  75    || !empty($link_id)
  76    ) {
  77      if($debug) echo "<br /> >> link ! ";
  78      $it_is_links = true;
  79      // reset wp query vars to let the wp page load
  80      $wp_query->set('taxonomy','');
  81      $wp_query->is_tax = false;
  82      $wp_query->set('page_id',$zelist_root);
  83      $wp_query->set('post_type','page');
  84    }
  85    elseif( // link tag
  86    $taxonomy && $taxonomy == 'link_tag'
  87    || !empty($link_tag)
  88    ) {
  89      if($debug) echo "<br /> >> link tag ! ";
  90      $it_is_links = true;
  91      // reset wp query vars to let the wp page load
  92      $wp_query->set('taxonomy','');
  93      $wp_query->is_tax = false;
  94      $wp_query->set('page_id',$zelist_root);
  95      $wp_query->set('post_type','page');
  96    }
  97    elseif( // link category
  98    $taxonomy && $taxonomy == 'link_category' // category id
  99    || !empty($link_category_name) // rewrited urls
 100    ) {
 101      if($debug) echo "<br /> >> link category ! ";
 102      $it_is_links = true;
 103    }
 104    elseif(!empty($link_search)) {
 105      $it_is_links = true;
 106    }
 107    elseif($page_id && $page_id == $zelist_root) { // link home
 108      if($debug) echo "<br /> >> link home ! ";
 109      $it_is_links = true;
 110    }
 111  
 112  
 113    if($it_is_links) {
 114      if($debug) echo "\nit is links ! ";
 115      it_is_links();
 116  
 117      // force 404 on wp query to prevent further 404 header
 118      $wp_query->is_404 = 1;
 119  
 120      global $zelist_query,$zelist_the_query;
 121      $zelist_query = new zelist_query;
 122      $zelist_query->query($wp_query->query_vars);
 123      if($debug) echo '<pre>'.print_r($zelist_query,1).'</pre>';
 124  
 125      if( !isset($zelist_the_query) ) $zelist_the_query = $zelist_query;
 126    }
 127  }
 128  add_action('pre_get_posts','zelist_pre_get_posts');
 129  
 130  /**
 131   * zelist hook on init
 132   */
 133  function zelist_action_init() {
 134    global $wpdb;
 135    $wpdb->linkmeta = $wpdb->prefix.'linkmeta';
 136    zelist_add_taxonomies();
 137    zelist_link_capabilities();
 138    load_plugin_textdomain('zelist',false,'zelist');
 139    do_action('zelist_init');
 140  
 141  
 142  }
 143  add_action('init','zelist_action_init');
 144  
 145  function zelist_action_wp_head() {
 146    do_action('zelist_wp_head');
 147  }
 148  add_action('wp_head','zelist_action_wp_head');
 149  
 150  
 151  /**
 152   * zelist hook on 'wp'. Load fallback content if needed, add scripts
 153   * @return unknown_type
 154   */
 155  function zelist_hook_wp_head() {
 156    // styles and scripts
 157    global $post;
 158    if(is_page() && $post->ID == get_option('zelist_submit_page')) {
 159      if(!file_exists(TEMPLATEPATH . "/submitform.php")) {
 160        // we assume that if the webmaster has set a custom submitform.php, he does not want fallback style
 161        wp_enqueue_style('zelist_submit_style',WP_PLUGIN_URL.'/zelist/style/submit.css',false,false,'all');
 162      }
 163      if(!file_exists(TEMPLATEPATH . "/submit.js")) {
 164        wp_enqueue_script('zelist_submit',WP_PLUGIN_URL.'/zelist/js/submit.js',array('jquery','jquery-form','wp-ajax-response'),ZELIST_CURRENT_VERSION);
 165      }
 166      wp_localize_script('zelist_submit','submitL10n',array(
 167          'checking' => __('Checking...','zelist'),
 168          'text_category_not_valid' => __('Please choose a valid category','zelist'),
 169          'text_email_not_valid' => __('Not a valid email','zelist'),
 170          'text_url_not_valid' => __('Not a valid URL','zelist'),
 171          'text_name_not_valid' => __('Not a valid name','zelist'),
 172          'text_missing_field' => __('Please fill all required fields','zelist'),
 173          'regular_submit' =>  ZELIST_ADMIN_URL_ADD,
 174          'ajax_submit' =>  get_option('home').'/wp-admin/admin-ajax.php',
 175          'admin_images' => admin_url('images/'),
 176          'l10n_print_after' => 'try{convertEntities(mailL10n);}catch(e){};',
 177      ));
 178    }
 179  
 180    // admin zelist style
 181    if(is_admin()) wp_enqueue_style('zelist-admin',WP_PLUGIN_URL.'/zelist/style/admin.css');
 182  }
 183  add_action('wp_head','zelist_hook_wp_head',8);
 184  
 185  /**
 186   * Adding localized strings for Javascript usage
 187   * @return unknown_type
 188   */
 189  function zelist_submit_localize() {
 190    if(is_admin()) return;
 191    wp_localize_script( 'zelist-submit', 'zelist_submitL10n', array(
 192          'checking' => __('Checking...','zelist'),
 193          'text_category_not_valid' => __('Please choose a valid category','zelist'),
 194          'text_email_not_valid' => __('Not a valid email','zelist'),
 195          'text_url_not_valid' => __('Not a valid URL','zelist'),
 196          'ajax_submit' => admin_url('admin-ajax.php'),
 197          'regular_submit' =>  ZELIST_ADMIN_URL_ADD,
 198          'l10n_print_after' => 'try{convertEntities(mailL10n);}catch(e){};',
 199    ));
 200    wp_enqueue_script('zelist-submit');
 201  }
 202  add_action('wp_print_scripts','zelist_submit_localize');
 203  
 204  /**
 205   * Filters the link edit link
 206   * @param $link
 207   * @param $link_id
 208   * @return unknown_type
 209   */
 210  function zelist_get_edit_bookmark_link($link,$link_id = 0) {
 211    $link = parse_url($link);
 212    $defaults = array('link_id' => false,'action' => 'edit');
 213    $query = wp_parse_args( html_entity_decode($link['query']), $defaults );
 214    extract($query);
 215  
 216  
 217    $location = add_query_arg('action','edit',ZELIST_ADMIN_URL_LINK);
 218    $location = add_query_arg('link_id',$link_id,$location);
 219    // $file = 'link-manager.php?page=zelist/admin/link.php';
 220    //$var = 'link_id';
 221    //admin_url("$file&action={$action}&$var=$link_id",$link_id);
 222    return $location;
 223  }
 224  add_filter( 'get_edit_bookmark_link', 'zelist_get_edit_bookmark_link');
 225  
 226  
 227  function all_actions() {
 228    if(in_array(current_filter(),array('attribute_escape','gettext','sanitize_title',))) return;
 229    if(stripos(current_filter(),'option_') !== false) return;
 230    //        if(current_filter() == 'parse_query') $debug = true;
 231    global $debug;
 232    $debug = true;
 233    //echo "<br />\n".current_filter();
 234    if($debug) {
 235      echo "\nfilter = ";
 236      var_dump(current_filter());
 237      if(!in_array(current_filter(),array('get_terms','parse_request')))
 238      echo '<pre>ARGS = '.print_r(func_get_args(),1).'</pre>';
 239    }
 240    if(is_404()) echo "\n".current_filter().' is 404 ! ';
 241  }
 242  //add_action('all','all_actions',1);
 243  
 244  function zelist_remote_request_args($array) {
 245    /* Defaults, see wp-includes/http.php
 246     $defaults = array(
 247     'method' => 'GET',
 248     'timeout' => apply_filters( 'http_request_timeout', 5),
 249     'redirection' => apply_filters( 'http_request_redirection_count', 5),
 250     'httpversion' => apply_filters( 'http_request_version', '1.0'),
 251     'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version ),
 252     'blocking' => true,
 253     'headers' => array(),
 254     'body' => null
 255     );
 256     */
 257    $array['user_agent'] = 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1); URL fetching by zelist (http://www.zelist.net) for '.get_option('blogname').';';
 258    return $array;
 259  }
 260  add_filter('zelist_remote_request','zelist_remote_request_args');
 261  
 262  /**
 263   * After adding a link, update the link_added date
 264   * @param $link_id
 265   * @return unknown_type
 266   */
 267  function zelist_add_link($link_id) {
 268    $link = get_bookmark($link_id);
 269  
 270    global $wpdb;
 271    $query = "UPDATE $wpdb->links SET ";
 272    $join = "";
 273    $update = array();
 274    $where = "WHERE link_id = $link_id ";
 275    if($link->link_added == '0000-00-00 00:00:00') {
 276      $update[] = 'link_added = NOW()';
 277    /*  $link_added = false;
 278      if(isset($_POST['link_added'])) {
 279        $link_added = date('Y-m-d H:i:s',strtotime($_POST['link_added']));
 280        $link_added = "'$link_added'";
 281      }
 282      if(!$link_added) $link_added = 'NOW()';*/
 283    }
 284    if($link->link_status == 'publish') {
 285      $update[] = 'link_published = NOW()';
 286    }
 287    $update[] = 'link_updated = NOW()';
 288  
 289  
 290    $visible = ($link->link_status == 'publish') ? 'Y' : 'N';
 291    $update[] = "link_visible = '$visible' ";
 292  
 293    if(count($update) == 0) return;
 294  
 295    $update = apply_filters('zelist_add_link',$update,$link_id,$link,$query,$join,$where);
 296    $query = $query . implode(', ',$update) . $where;
 297    $wpdb->query($query);
 298    return;
 299  }
 300  add_action( 'add_link', 'zelist_add_link',10,1);
 301  
 302  function zelist_get_search_query($s) {
 303    if(empty($s))  return stripslashes( get_query_var( 'ls' ) );
 304  }
 305  add_filter( 'get_search_query', 'zelist_get_search_query');
 306  
 307  //add_filter('login_headerurl', 'zelist_login_headerurl');