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<title>[BuddyPress][5272] trunk/bp-core: Introduce bbp-core-moderation.php to provide basic functions for checking submitted content against illegal keys and flooding.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://buddypress.trac.wordpress.org/changeset/5272">5272</a></dd>
<dt>Author</dt> <dd>johnjamesjacoby</dd>
<dt>Date</dt> <dd>2011-11-05 20:09:23 +0000 (Sat, 05 Nov 2011)</dd>
</dl>
<h3>Log Message</h3>
<pre>Introduce bbp-core-moderation.php to provide basic functions for checking submitted content against illegal keys and flooding. See <a href="http://buddypress.trac.wordpress.org/ticket/3732">#3732</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkbpcorebpcoreloaderphp">trunk/bp-core/bp-core-loader.php</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkbpcorebpcoremoderationphp">trunk/bp-core/bp-core-moderation.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkbpcorebpcoreloaderphp"></a>
<div class="modfile"><h4>Modified: trunk/bp-core/bp-core-loader.php (5271 => 5272)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/bp-core/bp-core-loader.php 2011-11-03 19:54:36 UTC (rev 5271)
+++ trunk/bp-core/bp-core-loader.php 2011-11-05 20:09:23 UTC (rev 5272)
</span><span class="lines">@@ -3,18 +3,19 @@
</span><span class="cx"> if ( !defined( 'ABSPATH' ) ) exit;
</span><span class="cx">
</span><span class="cx"> // Require all of the BuddyPress core libraries
</span><del>-require( BP_PLUGIN_DIR . '/bp-core/bp-core-cache.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-hooks.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-cssjs.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-classes.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-filters.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-avatars.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-widgets.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-template.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-buddybar.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-catchuri.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-component.php' );
-require( BP_PLUGIN_DIR . '/bp-core/bp-core-functions.php' );
</del><ins>+require( BP_PLUGIN_DIR . '/bp-core/bp-core-cache.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-hooks.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-cssjs.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-classes.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-filters.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-avatars.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-widgets.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-template.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-buddybar.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-catchuri.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-component.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-functions.php' );
+require( BP_PLUGIN_DIR . '/bp-core/bp-core-moderation.php' );
</ins><span class="cx">
</span><span class="cx"> // Load deprecated functions
</span><span class="cx"> require( BP_PLUGIN_DIR . '/bp-core/deprecated/1.5.php' );
</span></span></pre></div>
<a id="trunkbpcorebpcoremoderationphp"></a>
<div class="addfile"><h4>Added: trunk/bp-core/bp-core-moderation.php (0 => 5272)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/bp-core/bp-core-moderation.php (rev 0)
+++ trunk/bp-core/bp-core-moderation.php 2011-11-05 20:09:23 UTC (rev 5272)
</span><span class="lines">@@ -0,0 +1,276 @@
</span><ins>+<?php
+
+/**
+ * BuddyPress Moderation Functions
+ *
+ * @package BuddyPress
+ * @subpackage Core
+ * @since 1.6
+ */
+
+// Exit if accessed directly
+if ( !defined( 'ABSPATH' ) ) exit;
+
+/** Moderation ****************************************************************/
+
+/**
+ * Check for flooding
+ *
+ * Check to make sure that a user is not making too many posts in a short amount
+ * of time.
+ *
+ * @since BuddyPress (1.6)
+ *
+ * @param int $user_id User id to check for flood
+ * @uses get_option() To get the throttle time
+ * @uses get_transient() To get the last posted transient of the ip
+ * @uses get_user_meta() To get the last posted meta of the user
+ * @uses current_user_can() To check if the current user can throttle
+ * @return bool True if there is no flooding, true if there is
+ */
+function bp_core_check_for_flood( $user_id = 0 ) {
+
+ // Option disabled. No flood checks.
+ if ( !$throttle_time = get_option( '_bp_throttle_time' ) )
+ return true;
+
+ // Bail if no user ID passed
+ if ( empty( $user_id ) )
+ return false;
+
+ $last_posted = get_user_meta( $user_id, '_bp_last_posted', true );
+ if ( isset( $last_posted ) && ( time() < ( $last_posted + $throttle_time ) ) && !current_user_can( 'throttle' ) )
+ return false;
+
+ return true;
+}
+
+/**
+ * Check for moderation keys and too many links
+ *
+ * @since BuddyPress (1.6)
+ *
+ * @param int $user_id Topic or reply author ID
+ * @param string $title The title of the content
+ * @param string $content The content being posted
+ * @uses is_super_admin() Allow super admins to bypass blacklist
+ * @uses bbp_current_author_ip() To get current user IP address
+ * @uses bbp_current_author_ua() To get current user agent
+ * @return bool True if test is passed, false if fail
+ */
+function bp_core_check_for_moderation( $user_id = 0, $title = '', $content = '' ) {
+
+ // Bail if super admin is author
+ if ( is_super_admin( $user_id ) )
+ return true;
+
+ // Define local variable(s)
+ $post = array();
+ $match_out = '';
+
+ /** Blacklist *************************************************************/
+
+ // Get the moderation keys
+ $blacklist = trim( get_option( 'moderation_keys' ) );
+
+ // Bail if blacklist is empty
+ if ( empty( $blacklist ) )
+ return true;
+
+ /** User Data *************************************************************/
+
+ if ( !empty( $user_id ) ) {
+
+ // Get author data
+ $user = get_userdata( $user_id );
+
+ // If data exists, map it
+ if ( !empty( $user ) ) {
+ $post['author'] = $user->display_name;
+ $post['email'] = $user->user_email;
+ $post['url'] = $user->user_url;
+ }
+ }
+
+ // Current user IP and user agent
+ $post['user_ip'] = bp_current_user_ip();
+ $post['user_ua'] = bp_current_user_ua();
+
+ // Post title and content
+ $post['title'] = $title;
+ $post['content'] = $content;
+
+ /** Max Links *************************************************************/
+
+ $max_links = get_option( 'comment_max_links' );
+ if ( !empty( $max_links ) ) {
+
+ // How many links?
+ $num_links = preg_match_all( '/<a [^>]*href/i', $content, $match_out );
+
+ // Allow for bumping the max to include the user's URL
+ $num_links = apply_filters( 'comment_max_links_url', $num_links, $post['url'] );
+
+ // Das ist zu viele links!
+ if ( $num_links >= $max_links ) {
+ return false;
+ }
+ }
+
+ /** Words *****************************************************************/
+
+ // Get words separated by new lines
+ $words = explode( "\n", $blacklist );
+
+ // Loop through words
+ foreach ( (array) $words as $word ) {
+
+ // Trim the whitespace from the word
+ $word = trim( $word );
+
+ // Skip empty lines
+ if ( empty( $word ) ) { continue; }
+
+ // Do some escaping magic so that '#' chars in the
+ // spam words don't break things:
+ $word = preg_quote( $word, '#' );
+ $pattern = "#$word#i";
+
+ // Loop through post data
+ foreach( $post as $post_data ) {
+
+ // Check each user data for current word
+ if ( preg_match( $pattern, $post_data ) ) {
+
+ // Post does not pass
+ return false;
+ }
+ }
+ }
+
+ // Check passed successfully
+ return true;
+}
+
+/**
+ * Checks for blocked keys
+ *
+ * @since bbPress (r3446)
+ *
+ * @param int $user_id Topic or reply author ID
+ * @param string $title The title of the content
+ * @param string $content The content being posted
+ * @uses is_super_admin() Allow super admins to bypass blacklist
+ * @uses bp_current_author_ip() To get current user IP address
+ * @uses bp_current_author_ua() To get current user agent
+ * @return bool True if test is passed, false if fail
+ */
+function bp_core_check_for_blacklist( $user_id = 0, $title = '', $content = '' ) {
+
+ // Bail if super admin is author
+ if ( is_super_admin( $user_id ) )
+ return true;
+
+ // Define local variable
+ $post = array();
+
+ /** Blacklist *************************************************************/
+
+ // Get the moderation keys
+ $blacklist = trim( get_option( 'blacklist_keys' ) );
+
+ // Bail if blacklist is empty
+ if ( empty( $blacklist ) )
+ return true;
+
+ /** User Data *************************************************************/
+
+ // Map current user data
+ if ( !empty( $user_id ) ) {
+
+ // Get author data
+ $user = get_userdata( $user_id );
+
+ // If data exists, map it
+ if ( !empty( $user ) ) {
+ $post['author'] = $user->display_name;
+ $post['email'] = $user->user_email;
+ $post['url'] = $user->user_url;
+ }
+ }
+
+ // Current user IP and user agent
+ $post['user_ip'] = bp_current_user_ip();
+ $post['user_ua'] = bp_current_user_ua();
+
+ // Post title and content
+ $post['title'] = $title;
+ $post['content'] = $content;
+
+ /** Words *****************************************************************/
+
+ // Get words separated by new lines
+ $words = explode( "\n", $blacklist );
+
+ // Loop through words
+ foreach ( (array) $words as $word ) {
+
+ // Trim the whitespace from the word
+ $word = trim( $word );
+
+ // Skip empty lines
+ if ( empty( $word ) ) { continue; }
+
+ // Do some escaping magic so that '#' chars in the
+ // spam words don't break things:
+ $word = preg_quote( $word, '#' );
+ $pattern = "#$word#i";
+
+ // Loop through post data
+ foreach( $post as $post_data ) {
+
+ // Check each user data for current word
+ if ( preg_match( $pattern, $post_data ) ) {
+
+ // Post does not pass
+ return false;
+ }
+ }
+ }
+
+ // Check passed successfully
+ return true;
+}
+
+/**
+ * Get the current-user IP address
+ *
+ * @since BuddyPress (1.6)
+ *
+ * @return string
+ */
+function bp_core_current_user_ip() {
+ $retval = preg_replace( '/[^0-9a-fA-F:., ]/', '', $_SERVER['REMOTE_ADDR'] );
+
+ return apply_filters( 'bp_current_user_ip', $retval );
+}
+
+/**
+ * Get the current-user user-agent
+ *
+ * @since BuddyPress (1.6)
+ *
+ * @return string
+ */
+function bp_core_current_user_ua() {
+
+ // Sanity check the user agent
+ if ( !empty( $_SERVER['HTTP_USER_AGENT'] ) )
+ $retval = substr( $_SERVER['HTTP_USER_AGENT'], 0, 254 );
+ else
+ $retval = '';
+
+ return apply_filters( 'bp_current_user_ua', $retval );
+}
+
+?>
</ins><span class="cx">Property changes on: trunk/bp-core/bp-core-moderation.php
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
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