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<title>[BuddyPress][13178] trunk/src/bp-core/bp-core-avatars.php: Add Ajax handlers for the recycle and delete previous avatar actions</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="http://buddypress.trac.wordpress.org/changeset/13178">13178</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"http://buddypress.trac.wordpress.org/changeset/13178","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>imath</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2021-12-11 14:13:14 +0000 (Sat, 11 Dec 2021)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Add Ajax handlers for the recycle and delete previous avatar actions

These handlers will be used by the avatar UI:
- to reset a previously uploaded user avatar as the current user avatar (`bp_avatar_ajax_recycle_previous_avatar()`),
- to permanently remove a previously uploaded user avatar (`bp_avatar_ajax_delete_previous_avatar()`).

Props vapvarun, oztaser

See <a href="http://buddypress.trac.wordpress.org/ticket/8581">#8581</a></pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcbpcorebpcoreavatarsphp">trunk/src/bp-core/bp-core-avatars.php</a></li>
</ul>

</div>
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<h3>Diff</h3>
<a id="trunksrcbpcorebpcoreavatarsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/bp-core/bp-core-avatars.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/bp-core/bp-core-avatars.php     2021-12-11 13:40:24 UTC (rev 13177)
+++ trunk/src/bp-core/bp-core-avatars.php       2021-12-11 14:13:14 UTC (rev 13178)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2240,3 +2240,343 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        return wp_filter_object_list( $avatars, array( 'type' => $type ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+/**
+ * Recycle a previously uploaded avatar as the current avatar.
+ *
+ * @since 10.0.0
+ */
+function bp_avatar_ajax_recycle_previous_avatar() {
+       if ( ! bp_is_post_request() ) {
+               wp_send_json_error();
+       }
+
+       $avatar_data = bp_parse_args(
+               $_POST,
+               array(
+                       'object'    => '',
+                       'item_id'   => 0,
+                       'avatar_id' => '',
+               )
+       );
+
+       if ( ! $avatar_data['object'] || ! $avatar_data['item_id'] || ! $avatar_data['avatar_id'] ) {
+               wp_send_json_error();
+       }
+
+       // Check the nonce.
+       check_admin_referer( 'bp_avatar_recycle_previous', 'nonce' );
+
+       // Capability check.
+       if ( ! bp_attachments_current_user_can( 'edit_avatar', $avatar_data ) ) {
+               wp_send_json_error();
+       }
+
+       // Set the Avatar Attachment Instance.
+       $avatar_attachment = new BP_Attachment_Avatar();
+       $object            = sanitize_key( $avatar_data['object'] );
+
+       if ( 'user' === $object ) {
+               $avatar_dir = 'avatars';
+       } else {
+               $avatar_dir = $object . '-avatars';
+       }
+
+       $item_id         = (int) $avatar_data['item_id'];
+       $avatar_dir_path = $avatar_attachment->upload_path . '/' . $avatar_dir . '/' . $item_id;
+       $current_avatars = bp_attachments_list_directory_files( $avatar_dir_path );
+       $revision_errors = array();
+
+       // This path will be needed to get the avatar revision object.
+       $avatar_full_revision_path = '';
+
+       // Add a revision of the current avatar if it's not a mystery man!
+       if ( $current_avatars ) {
+               foreach( $current_avatars as $current_avatar ) {
+                       if ( ! isset( $current_avatar->name, $current_avatar->id, $current_avatar->path ) ) {
+                               continue;
+                       }
+
+                       $is_full  = preg_match( "/-bpfull/", $current_avatar->name );
+                       $is_thumb = preg_match( "/-bpthumb/", $current_avatar->name );
+
+                       if ( $is_full || $is_thumb ) {
+                               // Add a revision of the current avatar.
+                               $revision = $avatar_attachment->add_revision(
+                                       'avatar',
+                                       array(
+                                               'file_abspath' => $current_avatar->path,
+                                               'file_id'      => $current_avatar->id,
+                                       )
+                               );
+
+                               if ( is_wp_error( $revision ) ) {
+                                       $revision_errors[] = $revision->get_error_message();
+                               } elseif ( $is_full ) {
+                                       $avatar_full_revision_path = $revision->path;
+                               }
+                       }
+               }
+       }
+
+       // No errors, let's recycle the previous avatar.
+       if ( ! $revision_errors ) {
+               $avatar_id   = sanitize_file_name( $avatar_data['avatar_id'] );
+               $suffix      = '-bpfull';
+               $history_dir = trailingslashit( bp_core_avatar_upload_path() ) . $avatar_dir . '/' . $item_id . '/history';
+               $avatars     = bp_attachments_list_directory_files( $history_dir );
+
+               if ( ! isset( $avatars[ $avatar_id ] ) ) {
+                       wp_send_json_error(
+                               array(
+                                       'message' => __( 'The profile photo you want to recycle cannot be found.', 'buddypress' ),
+                               )
+                       );
+               }
+
+               // Init recycle vars.
+               $recycle_timestamp = bp_core_current_time( true, 'timestamp' );
+               $recycle_errors    = array();
+               $avatar_types      = array(
+                       'full'  => '',
+                       'thumb' => '',
+               );
+
+               // Use the found previous avatar.
+               $avatar                = $avatars[ $avatar_id ];
+               $avatar_types['full']  = $avatar->path;
+               $avatar_types['thumb'] = str_replace( $suffix, '-bpthumb', $avatar->path );
+               $historical_types      = $avatar_types;
+
+               // It's a legacy avatar, we need to crop it again and remove the thumb file that is not using a timestamp in its name.
+               if ( ! file_exists( $avatar_types['thumb'] ) ) {
+                       $full_avatar_path = $avatar_dir_path . '/' . str_replace( 'bpfull', 'original-file', wp_basename( $avatar->path ) );
+
+                       // Move the full version back to avatar dir.
+                       rename( $avatar->path, $full_avatar_path );
+
+                       $avatar_types = $avatar_attachment->crop(
+                               array(
+                                       'original_file' => $full_avatar_path,
+                                       'avatar_dir'    => $avatar_dir,
+                                       'object'        => $object,
+                                       'item_id'       => $item_id,
+                               )
+                       );
+
+                       // loop into the history directory to delete the legacy thumb version file.
+                       foreach ( $avatars as $avatar_object ) {
+                               $timestamp = str_replace( array( '-bpthumb', '-bpfull' ), '', $avatar_object->id );
+
+                               if ( ! is_numeric( $timestamp ) && false !== strpos( $avatar_object->id, '-bpthumb' ) ) {
+                                       @unlink( $avatar_object->path );
+                               }
+                       }
+               } else {
+                       foreach( $avatar_types as $type_key => $avatar_path ) {
+                               $filename  = wp_basename( $avatar_path );
+                               $avatar_id = pathinfo( $filename, PATHINFO_FILENAME );
+                               $recycle_path = $avatar_dir_path . '/' . str_replace( $avatar_id, $recycle_timestamp . '-bp' . $type_key, $filename );
+
+                               if ( ! rename( $avatar_path, $recycle_path ) ) {
+                                       $recycle_errors[] = __( 'An unexpected error occured while recycling the previous profile photo.', 'buddypress' );
+                               } else {
+                                       $avatar_types[ $type_key ] = $recycle_path;
+                               }
+                       }
+
+                       $avatar_types = array_merge(
+                               $avatar_types,
+                               array(
+                                       'timestamp' => $recycle_timestamp,
+                               )
+                       );
+               }
+
+               // No errors, fire the hook used when an avatar is set.
+               if ( ! $recycle_errors && $historical_types['full'] !== $avatar_types['full'] ) {
+                       $r = array(
+                               'item_id'    => $item_id,
+                               'object'     => $object,
+                               'avatar_dir' => $avatar_dir,
+                       );
+
+                       $action_hook = 'bp_members_avatar_uploaded';
+                       if ( 'group' === $object ) {
+                               $action_hook = 'groups_avatar_uploaded';
+                       }
+
+                       /** This action is documented in bp-core/bp-core-avatars.php */
+                       do_action( $action_hook, $item_id, 'recycle', $r, $avatar_types );
+               } else {
+                       $recycle_error = reset( $recycle_errors );
+
+                       wp_send_json_error(
+                               array(
+                                       'message' => join( "\n", $recycle_error ),
+                               )
+                       );
+               }
+       } else {
+               wp_send_json_error(
+                       array(
+                               'message' => join( "\n", $revision_errors ),
+                       )
+               );
+       }
+
+       $return = array(
+               'avatar'        => esc_url(
+                       bp_core_fetch_avatar(
+                               array(
+                                       'object'  => $object,
+                                       'item_id' => $item_id,
+                                       'html'    => false,
+                                       'type'    => 'full',
+                               )
+                       )
+               ),
+               'feedback_code' => 5,
+               'item_id'       => $item_id,
+       );
+
+       // Get the created revision object if it exists.
+       if ( $avatar_full_revision_path ) {
+               $history_dir     = dirname( $avatar_full_revision_path );
+               $avatars_history = bp_attachments_list_directory_files( $history_dir );
+               $latest_id       = pathinfo( wp_basename( $avatar_full_revision_path ), PATHINFO_FILENAME );
+
+               if ( isset( $avatars_history[ $latest_id ] ) ) {
+                       $gmdate      = gmdate( 'Y-m-d H:i:s', $avatars_history[ $latest_id ]->last_modified );
+                       $date        = strtotime( get_date_from_gmt( $gmdate ) );
+                       $history_url = trailingslashit( bp_core_avatar_url() ) .  $avatar_dir . '/' . $item_id . '/history';
+
+                       // Prepare the avatar object for JavaScript.
+                       $avatars_history[ $latest_id ]->date = sprintf(
+                               '%1$s (%2$s)',
+                               date_i18n( get_option( 'date_format' ), $date ),
+                               date_i18n( get_option( 'time_format' ), $date )
+                       );
+                       $avatars_history[ $latest_id ]->type = 'full';
+                       $avatars_history[ $latest_id ]->url  = $history_url . '/' . $avatars_history[ $latest_id ]->name;
+
+                       // Remove the path.
+                       unset( $avatars_history[ $latest_id ]->path );
+
+                       // Set the new object to add to the revision list.
+                       $return['historicalAvatar'] = $avatars_history[ $latest_id ];
+               }
+       }
+
+       wp_send_json_success( $return );
+}
+add_action( 'wp_ajax_bp_avatar_recycle_previous', 'bp_avatar_ajax_recycle_previous_avatar' );
+
+/**
+ * Delete a previously uploaded avatar from avatars history.
+ *
+ * @since 10.0.0
+ */
+function bp_avatar_ajax_delete_previous_avatar() {
+       if ( ! bp_is_post_request() ) {
+               wp_send_json_error();
+       }
+
+       $avatar_data = bp_parse_args(
+               $_POST,
+               array(
+                       'object'    => '',
+                       'item_id'   => 0,
+                       'avatar_id' => '',
+               )
+       );
+
+       if ( ! $avatar_data['object'] || ! $avatar_data['item_id'] || ! $avatar_data['avatar_id'] ) {
+               wp_send_json_error();
+       }
+
+       // Check the nonce.
+       check_admin_referer( 'bp_avatar_delete_previous', 'nonce' );
+
+       // Capability check.
+       if ( ! bp_attachments_current_user_can( 'edit_avatar', $avatar_data ) ) {
+               wp_send_json_error();
+       }
+
+       $object = sanitize_key( $avatar_data['object'] );
+       if ( 'user' === $object ) {
+               $avatar_dir = 'avatars';
+       } else {
+               $avatar_dir = $object . '-avatars';
+       }
+
+       $item_id     = (int) $avatar_data['item_id'];
+       $avatar_id   = sanitize_file_name( $avatar_data['avatar_id'] );
+       $suffix      = '-bpfull';
+       $history_dir = trailingslashit( bp_core_avatar_upload_path() ) . $avatar_dir . '/' . $item_id . '/history';
+       $avatars     = bp_attachments_list_directory_files( $history_dir );
+
+       if ( ! isset( $avatars[ $avatar_id ] ) ) {
+               wp_send_json_error(
+                       array(
+                               'message' => __( 'The profile photo you want to delete cannot be found.', 'buddypress' ),
+                       )
+               );
+       }
+
+       $avatar_types = array(
+               'full'  => '',
+               'thumb' => '',
+       );
+
+       // Use the found previous avatar.
+       $avatar                = $avatars[ $avatar_id ];
+       $avatar_types['full']  = $avatar->path;
+       $avatar_types['thumb'] = str_replace( $suffix, '-bpthumb', $avatar->path );
+
+       // It's a legacy avatar, we need to find the thumb version using file last modified date.
+       if ( ! file_exists( $avatar_types['thumb'] ) ) {
+               $avatar_types['thumb']  = '';
+               $possible_thumb_avatars = wp_list_pluck( $avatars, 'last_modified', 'id' );
+
+               foreach ( $possible_thumb_avatars as $type_id => $modified_date ) {
+                       $timediff = $avatar->last_modified - $modified_date;
+                       if ( 1000 >= absint( $timediff ) && $avatar_id !== $type_id ) {
+                               $avatar_types['thumb'] = $avatars[ $type_id ]->path;
+                               break;
+                       }
+               }
+       }
+
+       // Remove the files.
+       foreach ( $avatar_types as $avatar_path ) {
+               if ( ! $avatar_path ) {
+                       continue;
+               }
+
+               @unlink( $avatar_path );
+       }
+
+       $timestamp = str_replace( '-bpfull', '', $avatar_id );
+       if ( ! is_numeric( $timestamp ) ) {
+               $timestamp = $avatar->last_modified;
+       }
+
+       /**
+        * Hook here to run custom code once the previous avatar has been deleted.
+        *
+        * @since 10.0.0
+        *
+        * @param int $item_id   The object ID.
+        * @param int $timestamp The avatar timestamp.
+        */
+       do_action( "bp_previous_{$object}_avatar_deleted", $item_id, $timestamp );
+
+       // Finally inform about the deletion success.
+       wp_send_json_success(
+               array(
+                       'feedback_code' => 6,
+               )
+       );
+}
+add_action( 'wp_ajax_bp_avatar_delete_previous', 'bp_avatar_ajax_delete_previous_avatar' );
</ins></span></pre>
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