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<title>[401] sites/trunk/wordcamp.org/public_html/wp-content/plugins: Participation Notifier: Initial commit.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://meta.trac.wordpress.org/changeset/401">401</a></dd>
<dt>Author</dt> <dd>iandunn</dd>
<dt>Date</dt> <dd>2014-02-19 03:05:54 +0000 (Wed, 19 Feb 2014)</dd>
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<h3>Log Message</h3>
<pre>Participation Notifier: Initial commit.</pre>
<h3>Added Paths</h3>
<ul>
<li>sites/trunk/wordcamp.org/public_html/wp-content/plugins/wordcamp-participation-notifier/</li>
<li><a href="#sitestrunkwordcamporgpublic_htmlwpcontentpluginswordcampparticipationnotifierwordcampparticipationnotifierphp">sites/trunk/wordcamp.org/public_html/wp-content/plugins/wordcamp-participation-notifier/wordcamp-participation-notifier.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="sitestrunkwordcamporgpublic_htmlwpcontentpluginswordcampparticipationnotifierwordcampparticipationnotifierphp"></a>
<div class="addfile"><h4>Added: sites/trunk/wordcamp.org/public_html/wp-content/plugins/wordcamp-participation-notifier/wordcamp-participation-notifier.php (0 => 401)</h4>
<pre class="diff"><span>
<span class="info">--- sites/trunk/wordcamp.org/public_html/wp-content/plugins/wordcamp-participation-notifier/wordcamp-participation-notifier.php (rev 0)
+++ sites/trunk/wordcamp.org/public_html/wp-content/plugins/wordcamp-participation-notifier/wordcamp-participation-notifier.php 2014-02-19 03:05:54 UTC (rev 401)
</span><span class="lines">@@ -0,0 +1,281 @@
</span><ins>+<?php
+/*
+Plugin Name: WordCamp Participation Notifier
+Plugin Description: Updates a user's WordPress.org profile when they participate in a WordCamp.
+Author: WordCamp Central
+Author URI: http://wordcamp.org
+Version: 0.1
+License: GPLv2 or later
+*/
+
+class WordCamp_Participation_Notifier {
+ const PROFILES_HANDLER_URL = 'https://profiles.wordpress.org/wp-admin/admin-ajax.php';
+
+ /**
+ * Constructor
+ */
+ public function __construct() {
+ if ( ! in_array( get_current_blog_id(), apply_filters( 'wpn_enabled_blog_ids', array( 206 ) ) ) ) { // testing.wordcamp.org
+ return;
+
+ // todo reverse this when going live so that testing cpts on testing.wcorg doesn't affect real profiles.
+ // or maybe just put admin_notice on those pages to let admins know if they use real usernames, it'll affect their profiles
+ }
+
+ add_action( 'transition_post_status', array( $this, 'post_updated' ), 5, 3 );
+ }
+
+ /**
+ * Determines how to handle post updates.
+ *
+ * Ignores updates that shouldn't trigger notifications, and routes ones that do to the appropriate notifier.
+ *
+ * This hooks in before the custom post types save their post meta fields, so that we can access the
+ * WordPress.org username from the previous revision and from the current one.
+ *
+ * @param string $new_status
+ * @param string $old_status
+ * @param WP_Post $post
+ */
+ function post_updated( $new_status, $old_status, $post ) {
+ if ( ! $this->is_post_notifiable( $post ) ) {
+ return;
+ }
+
+ if ( 'publish' == $new_status && 'publish' == $old_status ) {
+ $this->published_post_updated( $post );
+ } elseif ( 'publish' == $new_status || 'publish' == $old_status ) {
+ $this->post_published_or_unpublished( $new_status, $old_status, $post );
+ }
+ }
+
+ /**
+ * Determines whether or not a post should trigger a notification.
+ *
+ * Note: post_status values also need to be checked, but that is handled by post_updated()
+ * because the logic differs based on the payload being generated.
+ *
+ * @param WP_Post $post The post
+ * @return boolean true if the post can be notified about; false if it can't
+ */
+ protected function is_post_notifiable( $post ) {
+ $notifiable = false;
+ $valid_post_types = array( 'wcb_speaker', 'wcb_organizer' );
+
+ if ( is_a( $post, 'WP_Post' ) && empty( $post->post_password ) && in_array( $post->post_type, $valid_post_types ) ) {
+ $notifiable = true;
+ }
+
+ return apply_filters( 'wpn_is_post_notifiable', $notifiable, $post );
+ }
+
+ /**
+ * Updates the activity and associations of a profile when the WordPress.org username on a published post changes.
+ *
+ * @todo The handler doesn't support removing activity, but maybe do that here if support is added.
+ *
+ * @param WP_Post $post
+ */
+ public function published_post_updated( $post ) {
+ $previous_user_id = $this->get_wporg_user_id( $post, false );
+ $new_user_id = $this->get_wporg_user_id( $post );
+
+ // There is no username, or it hasn't changed, so we don't need to do anything here.
+ if ( $previous_user_id === $new_user_id ) {
+ return;
+ }
+
+ // A new username was added, so add the activity and association.
+ if ( $new_user_id && ! $previous_user_id ) {
+ $this->remote_post( self::PROFILES_HANDLER_URL, $this->get_post_activity_payload( $post ) );
+ $this->remote_post( self::PROFILES_HANDLER_URL, $this->get_post_association_payload( $post, 'add' ) );
+ }
+
+ // The username was removed, so remove the association.
+ if ( ! $new_user_id && $previous_user_id ) {
+ $this->remote_post( self::PROFILES_HANDLER_URL, $this->get_post_association_payload( $post, 'remove', $previous_user_id ) );
+ }
+
+ // The username changed, so remove the association from the previous user and add both the activity and association to the new user.
+ if ( $new_user_id && $previous_user_id ) {
+ $this->remote_post( self::PROFILES_HANDLER_URL, $this->get_post_association_payload( $post, 'remove', $previous_user_id ) );
+ $this->remote_post( self::PROFILES_HANDLER_URL, $this->get_post_activity_payload( $post ) );
+ $this->remote_post( self::PROFILES_HANDLER_URL, $this->get_post_association_payload( $post, 'add' ) );
+ }
+ }
+
+ /**
+ * Adds new activity and associations to a user's profile when custom posts are published, and removes
+ * associations when custom posts are unpublished.
+ *
+ * @todo The handler doesn't support removing activity, but maybe do that here if support is added.
+ *
+ * @param string $new_status
+ * @param string $old_status
+ * @param WP_Post $post
+ */
+ public function post_published_or_unpublished( $new_status, $old_status, $post ) {
+ if ( 'publish' == $new_status ) {
+ $this->remote_post( self::PROFILES_HANDLER_URL, $this->get_post_activity_payload( $post ) );
+ $this->remote_post( self::PROFILES_HANDLER_URL, $this->get_post_association_payload( $post, 'add' ) );
+ } elseif( 'publish' == $old_status ) {
+ // Get the $user_id from post meta instead of $_POST in case it changed during the unpublish update.
+ // This makes sure that the association is removed from the same user that it was originally added to.
+
+ $user_id = $this->get_wporg_user_id( $post, false );
+ $this->remote_post( self::PROFILES_HANDLER_URL, $this->get_post_association_payload( $post, 'remove', $user_id ) );
+ }
+ }
+
+ /**
+ * Builds the payload for an activity notification based on a new post
+ *
+ * @param WP_Post $post
+ * @return array|false
+ */
+ protected function get_post_activity_payload( $post ) {
+ $activity = false;
+ $user_id = $this->get_wporg_user_id( $post );
+
+ if ( $user_id ) {
+ $activity = array(
+ 'action' => 'wporg_handle_activity',
+ 'source' => 'wordcamp',
+ 'user_id' => $user_id,
+ 'wordcamp_name' => get_wordcamp_name(),
+ 'url' => site_url(),
+ );
+
+ switch( $post->post_type ) {
+ case 'wcb_speaker':
+ $activity['speaker_id'] = $post->ID;
+ break;
+
+ case 'wcb_organizer':
+ $activity['organizer_id'] = $post->ID;
+ break;
+
+ default:
+ $activity = false;
+ break;
+ }
+ }
+
+ return apply_filters( 'wpn_post_activity_payload', $activity, $post, $user_id );
+ }
+
+ /**
+ * Build the payload for an association notification based on a new or updated post
+ *
+ * @param WP_Post $post
+ * @param string $command 'add' | 'remove'
+ * @param int $user_id
+ * @return array|false
+ */
+ protected function get_post_association_payload( $post, $command, $user_id = null ) {
+ $association = false;
+
+ if ( ! $user_id ) {
+ $user_id = $this->get_wporg_user_id( $post );
+ }
+
+ if ( $user_id ) {
+ $association = array(
+ 'action' => 'wporg_handle_association',
+ 'source' => 'wordcamp',
+ 'command' => $command,
+ 'user_id' => $user_id,
+ 'wordcamp_name' => get_wordcamp_name(),
+ 'url' => site_url(),
+ );
+
+ switch( $post->post_type ) {
+ case 'wcb_speaker':
+ $association['association'] = 'wordcamp_speaker';
+ break;
+
+ case 'wcb_organizer':
+ $association['association'] = 'wordcamp_organizer';
+ break;
+
+ default:
+ $association = false;
+ break;
+ }
+ }
+
+ return apply_filters( 'wpn_post_association_payload', $association, $post, $command, $user_id );
+ }
+
+ /**
+ * Get the WordPress.org user_id associated with a custom post
+ *
+ * When creating a new post, the user_id may be needed before the post meta is saved,
+ * so we first check the request for the latest value.
+ *
+ * @param WP_Post $post
+ * @param string $username_field
+ * @return false|int
+ */
+ protected function get_wporg_user_id( $post, $username_field = 'wcpt-wporg-username' ) {
+ $user_id = false;
+
+ if ( $username_field && isset( $_POST[ $username_field ] ) ) {
+ $user = get_user_by( 'login', $_POST[ $username_field ] );
+
+ if ( ! empty( $user->ID ) ) {
+ $user_id = $user->ID;
+ }
+ } else {
+ $user_id = (int) get_post_meta( $post->ID, '_wcpt_user_id', true );
+ }
+
+ return $user_id;
+ }
+
+ /**
+ * Wrapper for wp_remote_post()
+ *
+ * This reduces the amount of duplicated code in the callers, makes them more readable, and logs errors to aid in debugging
+ *
+ * @param string $url
+ * @param array $body The value intended to be passed to wp_remote_post() as $args['body']
+ * @return false|array|WP_Error False if a valid $body was not passed; otherwise the results from wp_remote_post()
+ */
+ protected function remote_post( $url, $body ) {
+ $response = $error = false;
+
+ // todo verify/update when can see actual responses from server
+
+ if ( $body ) {
+ $response = wp_remote_post( $url, array( 'body' => $body ) );
+
+ if ( is_wp_error( $response ) ) {
+ $error = sprintf(
+ 'Recieved WP_Error message: %s Request was: %s',
+ implode( ', ', $response->get_error_messages() ),
+ print_r( $body, true )
+ );
+ } elseif ( 200 != $response['response']['code'] || strlen( $response['body'] ) > 0 ) {
+ // The handler will will not output anything if the request was successful. It might not output anything if it failed,
+ // but in some cases a failure will result in an error message.
+ // trigger_error() has a message limit of 1024 bytes, so we truncate $response['body'] to make sure that $body doesn't get truncated.
+
+ $error = sprintf(
+ 'Recieved HTTP code: %s and body: %s. Request was: %s',
+ $response['response']['code'],
+ substr( sanitize_text_field( $response['body'] ), 0, 500 ),
+ print_r( $body, true )
+ );
+ }
+
+ if ( $error ) {
+ trigger_error( sprintf( '%s error: %s', __METHOD__, sanitize_text_field( $error ) ), E_USER_WARNING );
+ }
+ }
+
+ return $response;
+ }
+}
+
+$GLOBALS['WordCamp_Participation_Notifier'] = new WordCamp_Participation_Notifier();
</ins></span></pre>
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