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   1  <?php
   2  /*
   3  Plugin Name: Akismet
   4  Plugin URI: http://akismet.com/
   5  Description: Akismet checks posts against the Akismet web service to see if they look like spam or not. You need a <a href="http://wordpress.com/api-keys/">WordPress.com API key</a> to use this service.
   6  Author: Michael Adams
   7  Version: 1.1
   8  Author URI: http://blogwaffe.com/
   9  */
  10  
  11  
  12  
  13  $bb_ksd_api_host = bb_get_option( 'akismet_key' ) . '.rest.akismet.com';
  14  $bb_ksd_api_port = 80;
  15  $bb_ksd_user_agent = 'bbPress/' . bb_get_option( 'version' ) . ' | bbAkismet/'. bb_get_option( 'version' );
  16  
  17  function bb_akismet_verify_key( $key )
  18  {
  19      global $bb_ksd_api_port;
  20      $blog = urlencode( bb_get_uri( null, null, BB_URI_CONTEXT_TEXT + BB_URI_CONTEXT_AKISMET ) );
  21      $response = bb_ksd_http_post( 'key=' . $key . '&blog=' . $blog, 'rest.akismet.com', '/1.1/verify-key', $bb_ksd_api_port );
  22      if ( 'valid' == $response[1] ) {
  23          return true;
  24      } else {
  25          return false;
  26      }
  27  }
  28  
  29  // Returns array with headers in $response[0] and entity in $response[1]
  30  function bb_ksd_http_post( $request, $host, $path, $port = 80 )
  31  {
  32      global $bb_ksd_user_agent;
  33  
  34      $http_request  = 'POST ' . $path . ' HTTP/1.0' . "\r\n";
  35      $http_request .= 'Host: ' . $host . "\r\n";
  36      $http_request .= 'Content-Type: application/x-www-form-urlencoded; charset=utf-8' . "\r\n"; // for now
  37      $http_request .= 'Content-Length: ' . strlen($request) . "\r\n";
  38      $http_request .= 'User-Agent: ' . $bb_ksd_user_agent . "\r\n";
  39      $http_request .= "\r\n";
  40      $http_request .= $request;
  41      $response = '';
  42      if ( false != ( $fs = @fsockopen( $host, $port, $errno, $errstr, 10 ) ) ) {
  43          fwrite( $fs, $http_request );
  44  
  45          while ( !feof( $fs ) ) {
  46              $response .= fgets( $fs, 1160 ); // One TCP-IP packet
  47          }
  48          fclose( $fs );
  49          $response = explode( "\r\n\r\n", $response, 2 );
  50      }
  51      return $response;
  52  }
  53  
  54  function bb_ksd_configuration_page()
  55  {
  56  ?>
  57  <h2><?php _e( 'Akismet Settings' ); ?></h2>
  58  <?php do_action( 'bb_admin_notices' ); ?>
  59  
  60  <form class="settings" method="post" action="<?php bb_uri( 'bb-admin/admin-base.php', array( 'plugin' => 'bb_ksd_configuration_page'), BB_URI_CONTEXT_FORM_ACTION + BB_URI_CONTEXT_BB_ADMIN ); ?>">
  61      <fieldset>
  62          <p><?php printf( __( 'For many people, <a href="%s">Akismet</a> will greatly reduce or even completely eliminate the spam you get on your site. If one does happen to get through, simply mark it as "spam" and Akismet will learn from the mistakes.' ), 'http://akismet.com/' ); ?></p>
  63  
  64  <?php
  65      $after = '';
  66      if ( false !== $key = bb_get_option( 'akismet_key' ) ) {
  67          if ( bb_akismet_verify_key( $key ) ) {
  68              $after = __( 'This key is valid' );
  69          } else {
  70              bb_delete_option( 'akismet_key' );
  71          }
  72      }
  73  
  74      bb_option_form_element( 'akismet_key', array(
  75          'title' => __( 'WordPress.com API Key' ),
  76          'attributes' => array( 'maxlength' => 12 ),
  77          'after' => $after,
  78          'note' => sprintf( __( 'If you don\'t have a WordPress.com API Key, you can get one at <a href="%s">WordPress.com</a>' ), 'http://wordpress.com/api-keys/' )
  79      ) );
  80  
  81      bb_option_form_element( 'akismet_stats', array(
  82          'title' => __( 'Enable stats page' ),
  83          'type' => 'checkbox',
  84          'options' => array(
  85              1 => __( 'Create a page that shows spam statistics.' )
  86          ),
  87          'note' => __( 'This page will be viewable by moderators or higher.' )
  88      ) );
  89  ?>
  90  
  91      </fieldset>
  92      <fieldset class="submit">
  93          <?php bb_nonce_field( 'options-akismet-update' ); ?>
  94          <input type="hidden" name="action" value="update-akismet-settings" />
  95          <input class="submit" type="submit" name="submit" value="<?php _e('Save Changes') ?>" />
  96      </fieldset>
  97  </form>
  98  <?php
  99  }
 100  
 101  function bb_ksd_configuration_page_add()
 102  {
 103      bb_admin_add_submenu( __( 'Akismet' ), 'use_keys', 'bb_ksd_configuration_page', 'options-general.php' );
 104  }
 105  add_action( 'bb_admin_menu_generator', 'bb_ksd_configuration_page_add' );
 106  
 107  function bb_ksd_configuration_page_process()
 108  {
 109      if ( 'post' == strtolower( $_SERVER['REQUEST_METHOD'] ) && $_POST['action'] == 'update-akismet-settings') {
 110          bb_check_admin_referer( 'options-akismet-update' );
 111  
 112          $goback = remove_query_arg( array( 'invalid-akismet', 'updated-akismet' ), wp_get_referer() );
 113  
 114          if ( !isset( $_POST['akismet_stats'] ) ) {
 115              $_POST['akismet_stats'] = false;
 116          }
 117  
 118          if ( true === (bool) $_POST['akismet_stats'] ) {
 119              bb_update_option( 'akismet_stats', 1 );
 120          } else {
 121              bb_delete_option( 'akismet_stats' );
 122          }
 123  
 124          if ( $_POST['akismet_key'] ) {
 125              $value = stripslashes_deep( trim( $_POST['akismet_key'] ) );
 126              if ( $value ) {
 127                  if ( bb_akismet_verify_key( $value ) ) {
 128                      bb_update_option( 'akismet_key', $value );
 129                  } else {
 130                      $goback = add_query_arg( 'invalid-akismet', 'true', $goback );
 131                      bb_safe_redirect( $goback );
 132                      exit;
 133                  }
 134              } else {
 135                  bb_delete_option( 'akismet_key' );
 136              }
 137          } else {
 138              bb_delete_option( 'akismet_key' );
 139          }
 140  
 141          $goback = add_query_arg( 'updated-akismet', 'true', $goback );
 142          bb_safe_redirect( $goback );
 143          exit;
 144      }
 145  
 146      if ( !empty( $_GET['updated-akismet'] ) ) {
 147          bb_admin_notice( __( '<strong>Settings saved.</strong>' ) );
 148      }
 149  
 150      if ( !empty( $_GET['invalid-akismet'] ) ) {
 151          bb_admin_notice( __( '<strong>The key you attempted to enter is invalid. Reverting to previous setting.</strong>' ), 'error' );
 152      }
 153  
 154      global $bb_admin_body_class;
 155      $bb_admin_body_class = ' bb-admin-settings';
 156  }
 157  add_action( 'bb_ksd_configuration_page_pre_head', 'bb_ksd_configuration_page_process' );
 158  
 159  // Bail here if no key is set
 160  if ( !bb_get_option( 'akismet_key' ) ) {
 161      return;
 162  }
 163  
 164  function bb_ksd_stats_script()
 165  {
 166  ?>
 167  <style>
 168      #bb-ksd-stats-frame {
 169          -moz-box-shadow: 0 0 15px rgb(255, 255, 255);
 170          -webkit-box-shadow: 0 0 15px rgb(255, 255, 255);
 171          box-shadow: 0 0 15px rgb(255, 255, 255);
 172          margin-top: 16px;
 173          width: 100%;
 174          height: 700px;
 175          border-width: 0;
 176      }
 177  </style>
 178  <script type="text/javascript">
 179  	function resizeIframe() {
 180          var height = document.documentElement.clientHeight;
 181          height -= document.getElementById('bb-ksd-stats-frame').offsetTop;
 182          height -= 60;
 183          document.getElementById('bb-ksd-stats-frame').style.height = height +"px";
 184      };
 185  	function resizeIframeInit() {
 186          document.getElementById('bb-ksd-stats-frame').onload = resizeIframe;
 187          window.onresize = resizeIframe;
 188      }
 189      addLoadEvent(resizeIframeInit);
 190  </script>
 191  <?php
 192  }
 193  
 194  function bb_ksd_stats_display_pre_head()
 195  {
 196      if ( !bb_get_option( 'akismet_stats' ) ) {
 197          return;
 198      }
 199      add_action( 'bb_admin_head', 'bb_ksd_stats_script' );
 200  }
 201  add_action( 'bb_ksd_stats_display_pre_head', 'bb_ksd_stats_display_pre_head' );
 202  
 203  function bb_ksd_stats_display()
 204  {
 205      $site = urlencode( bb_get_uri( null, null, BB_URI_CONTEXT_TEXT + BB_URI_CONTEXT_AKISMET ) );
 206      $url = "http://".bb_get_option( 'akismet_key' ).".web.akismet.com/1.0/user-stats.php?blog={$site}&amp;type=forum";
 207  ?>
 208      <iframe src="<?php echo $url; ?>" id="bb-ksd-stats-frame"></iframe>
 209  <?php
 210  }
 211  
 212  function bb_ksd_stats_page()
 213  {
 214      if ( !bb_get_option( 'akismet_stats' ) ) {
 215          return;
 216      }
 217      if ( function_exists( 'bb_admin_add_submenu' ) ) {
 218          bb_admin_add_submenu( __( 'Akismet Stats' ), 'moderate', 'bb_ksd_stats_display', 'index.php' );
 219      }
 220  }
 221  add_action( 'bb_admin_menu_generator', 'bb_ksd_stats_page' );
 222  
 223  function bb_ksd_submit( $submit, $type = false )
 224  {
 225      global $bb_ksd_api_host;
 226      global $bb_ksd_api_port;
 227  
 228      switch ( $type ) {
 229          case 'ham':
 230          case 'spam':
 231              $path = '/1.1/submit-' . $type;
 232  
 233              $bb_post = bb_get_post( $submit );
 234              if ( !$bb_post ) {
 235                  return;
 236              }
 237              $user = bb_get_user( $bb_post->poster_id );
 238              if ( bb_is_trusted_user( $user->ID ) ) {
 239                  return;
 240              }
 241  
 242              $_submit = array(
 243                  'blog' => bb_get_uri( null, null, BB_URI_CONTEXT_TEXT + BB_URI_CONTEXT_AKISMET ),
 244                  'user_ip' => $bb_post->poster_ip,
 245                  'permalink' => get_topic_link( $bb_post->topic_id ), // First page
 246                  'comment_type' => 'forum',
 247                  'comment_author' => get_user_name( $user->ID ),
 248                  'comment_author_email' =>  bb_get_user_email( $user->ID ),
 249                  'comment_author_url' => get_user_link( $user->ID ),
 250                  'comment_content' => $bb_post->post_text,
 251                  'comment_date_gmt' => $bb_post->post_time
 252              );
 253              break;
 254  
 255          case 'hammer':
 256          case 'spammer':
 257              $path = '/1.1/submit-' . substr( $type, 0, -3 );
 258  
 259              $user = bb_get_user( $submit );
 260              if ( !$user ) {
 261                  return;
 262              }
 263              if ( bb_is_trusted_user( $user->ID ) ) {
 264                  return;
 265              }
 266  
 267              $_submit = array(
 268                  'blog' => bb_get_uri( null, null, BB_URI_CONTEXT_TEXT + BB_URI_CONTEXT_AKISMET ),
 269                  'permalink' => get_user_profile_link( $user->ID ),
 270                  'comment_type' => 'profile',
 271                  'comment_author' => get_user_name( $user->ID ),
 272                  'comment_author_email' =>  bb_get_user_email( $user->ID ),
 273                  'comment_author_url' => get_user_link( $user->ID ),
 274                  'comment_content' => $user->occ . ' ' . $user->interests,
 275                  'comment_date_gmt' => $user->user_registered
 276              );
 277              break;
 278  
 279          default:
 280              if ( bb_is_trusted_user( bb_get_current_user() ) ) {
 281                  return;
 282              }
 283  
 284              $path = '/1.1/comment-check';
 285  
 286              $_submit = array(
 287                  'blog' => bb_get_uri( null, null, BB_URI_CONTEXT_TEXT + BB_URI_CONTEXT_AKISMET ),
 288                  'user_ip' => preg_replace( '/[^0-9., ]/', '', $_SERVER['REMOTE_ADDR'] ),
 289                  'user_agent' => $_SERVER['HTTP_USER_AGENT'],
 290                  'referrer' => $_SERVER['HTTP_REFERER'],
 291                  'comment_type' => isset($_POST['topic_id']) ? 'forum' : 'profile',
 292                  'comment_author' => bb_get_current_user_info( 'name' ),
 293                  'comment_author_email' => bb_get_current_user_info( 'email' ),
 294                  'comment_author_url' => bb_get_current_user_info( 'url' ),
 295                  'comment_content' => $submit
 296              );
 297              if ( isset( $_POST['topic_id'] ) ) {
 298                  $_submit['permalink'] = get_topic_link( $_POST['topic_id'] ); // First page
 299              }
 300              break;
 301      }
 302  
 303      $query_string = '';
 304      foreach ( $_submit as $key => $data ) {
 305          $query_string .= $key . '=' . urlencode( stripslashes( $data ) ) . '&';
 306      }
 307      return bb_ksd_http_post( $query_string, $bb_ksd_api_host, $path, $bb_ksd_api_port );
 308  }
 309  
 310  function bb_ksd_submit_ham( $post_id )
 311  {
 312      bb_ksd_submit( $post_id, 'ham' );
 313  }
 314  
 315  function bb_ksd_submit_spam( $post_id )
 316  {
 317      bb_ksd_submit( $post_id, 'spam' );
 318  }
 319  
 320  function bb_ksd_check_post( $post_text )
 321  {
 322      global $bb_ksd_pre_post_status, $bb_ksd_pre_post;
 323  
 324      $bb_ksd_pre_post = $post_text;
 325  
 326      return $post_text;
 327  }
 328  add_action( 'pre_post', 'bb_ksd_check_post', 1 );
 329  
 330  function bb_ksd_check_profile( $user_id )
 331  {
 332      global $bb_current_user, $user_obj;
 333      $bb_current_id = bb_get_current_user_info( 'id' );
 334      bb_set_current_user( $user_id );
 335      if ( $bb_current_id && $bb_current_id != $user_id ) {
 336          if ( $user_obj->data->is_bozo && !$bb_current_user->data->is_bozo ) {
 337              bb_ksd_submit( $user_id, 'hammer' );
 338          }
 339          if ( !$user_obj->data->is_bozo && $bb_current_user->data->is_bozo ) {
 340              bb_ksd_submit( $user_id, 'spammer' );
 341          }
 342      } else {
 343          $response = bb_ksd_submit( $bb_current_user->data->occ . ' ' . $bb_current_user->data->interests );
 344          if ( 'true' == $response[1] && function_exists( 'bb_bozon' ) ) {
 345              bb_bozon( bb_get_current_user_info( 'id' ) );
 346          }
 347      }
 348      bb_set_current_user( (int) $bb_current_id );
 349  }
 350  add_action( 'register_user', 'bb_ksd_check_profile', 1);
 351  add_action( 'profile_edited', 'bb_ksd_check_profile', 1);
 352  
 353  function bb_ksd_new_post( $post_id )
 354  {
 355      global $bb_ksd_pre_post_status;
 356      if ( '2' != $bb_ksd_pre_post_status ) {
 357          return;
 358      }
 359      $bb_post = bb_get_post( $post_id );
 360      $topic = get_topic( $bb_post->topic_id );
 361      if ( 0 == $topic->topic_posts ) {
 362          bb_delete_topic( $topic->topic_id, 2 );
 363      }
 364  }
 365  add_filter( 'bb_new_post', 'bb_ksd_new_post' );
 366  
 367  function bb_akismet_delete_old()
 368  {
 369      // Delete old every 20
 370      $n = mt_rand( 1, 20 );
 371      if ( $n % 20 ) {
 372          return;
 373      }
 374      global $bbdb;
 375      $now = bb_current_time( 'mysql' );
 376      $posts = (array) $bbdb->get_col( $bbdb->prepare(
 377          "SELECT post_id FROM $bbdb->posts WHERE DATE_SUB(%s, INTERVAL 15 DAY) > post_time AND post_status = '2'",
 378          $now
 379      ) );
 380      foreach ( $posts as $post ) {
 381          bb_delete_post( $post, 1 );
 382      }
 383  }
 384  
 385  function bb_ksd_pre_post_status( $post_status, $post_ID )
 386  {
 387      global $bb_current_user, $bb_ksd_pre_post_status, $bb_ksd_pre_post;
 388  
 389      // Don't filter content from users with a trusted role
 390      if ( in_array( $bb_current_user->roles[0], bb_trusted_roles() ) ) {
 391          return $post_status;
 392      }
 393  
 394      $response = bb_ksd_submit( $bb_ksd_pre_post );
 395  
 396      if ( isset( $response[1] ) ) {
 397          bb_update_postmeta( $post_ID, 'akismet_response', $response[1] );
 398      }
 399  
 400      if ( 'true' == $response[1] ) {
 401          $bb_ksd_pre_post_status = '2';
 402          return $bb_ksd_pre_post_status;
 403      }
 404      return $post_status;
 405  }
 406  add_filter( 'pre_post_status', 'bb_ksd_pre_post_status', 10, 2 );
 407  
 408  function bb_ksd_delete_post( $post_id, $new_status, $old_status )
 409  {
 410      // Don't report post deletion
 411      if ( 1 == $new_status ) {
 412          return;
 413      }
 414      // Don't report no change in post status
 415      if ( $new_status == $old_status ) {
 416          return;
 417      }
 418      // It's being marked as spam, so report it
 419      if ( 2 == $new_status ) {
 420          bb_ksd_submit_spam( $post_id );
 421          return;
 422      }
 423      // It's not spam (and not being deleted), so it's ham now
 424      if ( 2 == $old_status ) {
 425          bb_ksd_submit_ham( $post_id );
 426          return;
 427      }
 428  }
 429  add_action( 'bb_delete_post', 'bb_ksd_delete_post', 10, 3);
 430  
 431  function bb_ksd_post_delete_link( $parts, $args )
 432  {
 433      if ( !bb_current_user_can( 'moderate' ) ) {
 434          return $parts;
 435      }
 436      $bb_post = bb_get_post( get_post_id( $args['post_id'] ) );
 437  
 438      if ( 2 == $bb_post->post_status ) {
 439          $query = array(
 440              'id'     => $bb_post->post_id,
 441              'status' => 0,
 442              'view'   => 'all'
 443          );
 444          $display = __('Not Spam');
 445      } else {
 446          $query = array(
 447              'id'     => $bb_post->post_id,
 448              'status' => 2
 449          );
 450          $display = __('Spam');
 451      }
 452      $uri = bb_get_uri( 'bb-admin/delete-post.php', $query, BB_URI_CONTEXT_A_HREF + BB_URI_CONTEXT_BB_ADMIN );
 453      $uri = esc_url( bb_nonce_url( $uri, 'delete-post_' . $bb_post->post_id ) );
 454      if ( !is_array( $parts ) ) {
 455          $parts = array();
 456          $before = '';
 457          $after = '';
 458      } else {
 459          $before = isset( $args['last_each']['before'] ) ? $args['last_each']['before'] : '';
 460          $after  = isset( $args['last_each']['after'] )  ? $args['last_each']['after']  : '';
 461      }
 462  
 463      // Make sure that the last tag in $before gets a class (if it's there)
 464      if ( preg_match( '/.*(<[^>]+>)[^<]*/', $before, $_node ) ) {
 465          if ( preg_match( '/class=(\'|")(.*)\1/U', $_node[1], $_class ) ) {
 466              $before = str_replace( $_class[0], 'class=' . $_class[1] . 'before-post-spam-link ' . $_class[2] . $_class[1], $before );
 467          } else {
 468              $before = preg_replace( '/(.*)<([a-z0-9_-]+)(\s?)([^>]*)>([^<]*)/i', '$1<$2 class="before-post-spam-link"$3$4>$5', $before, 1 );
 469          }
 470      }
 471  
 472      $parts[] = $before . '<a class="post-spam-link" href="' . $uri . '" >' . $display . '</a>' . $after;
 473      return $parts;
 474  }
 475  add_filter( 'bb_post_admin', 'bb_ksd_post_delete_link', 10, 2 );
 476  
 477  function bb_ksd_bulk_post_actions( &$bulk_actions, &$post_query ) {
 478      $status = $post_query->get( 'post_status' );
 479  
 480      $bulk_actions['unspam'] = __( 'Not Spam' );
 481      $bulk_actions['spam'] = __( 'Mark as Spam' );
 482  
 483      if ( 2 == $status )
 484          unset( $bulk_actions['undelete'], $bulk_actions['spam'] );
 485      elseif ( is_numeric( $status ) )
 486          unset( $bulk_actions['unspam'] );
 487  }
 488  
 489  add_action( 'bulk_post_actions', 'bb_ksd_bulk_post_actions', 10, 2 );
 490  
 491  function bb_ksd_bulk_post__action( $query_vars, $post_ids, $action ) {
 492      $count = 0;
 493  
 494      switch ( $action ) {
 495      case 'spam' :
 496          foreach ( $post_ids as $post_id ) {
 497              $count += (int) (bool) bb_delete_post( $post_id, 2 );
 498          }
 499          return array( 'message' => 'spammed', 'count' => $count );
 500      case 'unspam' :
 501          foreach ( $post_ids as $post_id ) {
 502              $count += (int) (bool) bb_delete_post( $post_id, 0 );
 503          }
 504          return array( 'message' => 'unspammed-normal', 'count' => $count );
 505      }
 506  }
 507  
 508  add_action( 'bulk_post__spam', 'bb_ksd_bulk_post__action', 10, 3 );
 509  add_action( 'bulk_post__unspam', 'bb_ksd_bulk_post__action', 10, 3 );
 510  
 511  function bb_ksd_add_post_status_to_forms( $stati, $type )
 512  {
 513      if ( 'post' === $type ) {
 514          $stati['2'] = __( 'Spam' );
 515      }
 516      return $stati;
 517  }
 518  add_filter( 'bb_query_form_post_status', 'bb_ksd_add_post_status_to_forms', 10, 2 );
 519  
 520  function bb_ksd_post_del_class( $classes, $post_id, $post )
 521  {
 522      if ( '2' === (string) $post->post_status ) {
 523          if ( $classes ) {
 524              return $classes . ' spam';
 525          }
 526          return 'spam';
 527      }
 528      return $classes;
 529  }
 530  add_filter( 'post_del_class', 'bb_ksd_post_del_class', 10, 3 );