From 77f07e47da4314a49fdb0f503dd7886328a1afba Mon Sep 17 00:00:00 2001
From: andreybrokeit <andrey.cherneha@cbs.com>
Date: Thu, 27 Feb 2014 13:31:07 -0500
Subject: [PATCH] Add ability to syndicate galleries
Currently post syndication simply copies post content to the remote
site.
That makes [gallery] short code to contain wrong image IDs.
This patch parses post content, fetches all galleries and upload images
to the remote site prior to the syndication. It adjusts gallery code
with new IDs and then syndication continues normally.
---
.../class-syndication-wp-xmlrpc-client.php | 159 +++++++++++++++++-
1 file changed, 157 insertions(+), 2 deletions(-)
diff --git a/includes/class-syndication-wp-xmlrpc-client.php b/includes/class-syndication-wp-xmlrpc-client.php
index d35862d..dccde25 100644
--- a/includes/class-syndication-wp-xmlrpc-client.php
+++ b/includes/class-syndication-wp-xmlrpc-client.php
@@ -111,9 +111,13 @@ class Syndication_WP_XMLRPC_Client extends WP_HTTP_IXR_Client implements Syndica
// This filter can be used to exclude or alter posts during a content push
$post = apply_filters( 'syn_xmlrpc_push_filter_new_post', $post, $post_ID );
- if ( false === $post )
+ if ( false === $post ) {
return true;
+ }
+ //Uploads all gallery images to the remote site and replaces [gallery] tags with new IDs
+ $post['post_content'] = $this->syndicate_gallery_images( $post['post_content'] );
+
// rearranging arguments
$args = array();
$args['post_title'] = $post['post_title'];
@@ -158,8 +162,9 @@ class Syndication_WP_XMLRPC_Client extends WP_HTTP_IXR_Client implements Syndica
// This filter can be used to exclude or alter posts during a content push
$post = apply_filters( 'syn_xmlrpc_push_filter_edit_post', $post, $post_ID );
- if ( false === $post )
+ if ( false === $post ) {
return true;
+ }
$remote_post = $this->get_remote_post( $remote_post_id );
@@ -173,6 +178,9 @@ class Syndication_WP_XMLRPC_Client extends WP_HTTP_IXR_Client implements Syndica
$args['custom_fields'][] = array( 'id' => $custom_field['id'] );
}
+ //Uploads all gallery images to the remote site and replaces [gallery] tags with new IDs
+ $post['post_content'] = $this->syndicate_gallery_images( $post['post_content'] );
+
// rearranging arguments
$args['post_title'] = $post['post_title'];
$args['post_content'] = $post['post_content'];
@@ -206,6 +214,78 @@ class Syndication_WP_XMLRPC_Client extends WP_HTTP_IXR_Client implements Syndica
return $remote_post_id;
}
+ /**
+ * Utility method to Syndicate [gallery] shortcode images
+ * It needs to upload images and inject new IDs into the post_content
+ * @access private
+ * @uses $shortcode_tags global variable
+ * @param string $post_content - post to be syndicated
+ * @return string $post_content - post content with replaced gallery shortcodes
+ */
+ private function syndicate_gallery_images( $post_content ) {
+ $attachment_ids = array();
+ global $shortcode_tags;
+ //overwrite global shortcodes for gallery only and then revert back to original
+ $temp = $shortcode_tags;
+ $shortcode_tags = array( 'gallery' => 'gallery_shortcode' );
+ $pattern = get_shortcode_regex();
+ $shortcode_tags = $temp;
+
+ $image_ids = array();
+ $new_image_ids = array();
+
+ if ( preg_match_all( '/' . $pattern . '/s', $post_content, $matches ) ) {
+ $count=count( $matches[3] );
+ for ( $i = 0; $i < $count; $i++ ) {
+ $atts = shortcode_parse_atts( $matches[3][$i] );
+ if ( isset( $atts['ids'] ) ) {
+ $attachment_ids = explode( ',', $atts['ids'] );
+ $image_ids[$i] = $attachment_ids;
+ }
+ }
+ }
+
+ if( ! empty( $image_ids ) ) {
+ foreach ( $image_ids as $key => $gallery_ids ) {
+ foreach ( $gallery_ids as $index => $id ) {
+ //do upload, get new ID back
+ list( $thumbnail_url ) = wp_get_attachment_image_src( $id, 'full' );
+ $thumbnail_post_data = get_post($id);
+ $thumbnail_alt_text = trim( get_post_meta( $id, '_wp_attachment_image_alt', true ) );
+
+ $result = $this->query(
+ 'syndication.postGalleryImage',
+ '1',
+ $this->username,
+ $this->password,
+ $thumbnail_url,
+ $thumbnail_post_data,
+ $thumbnail_alt_text
+ );
+
+ if ( ! $result ) {
+ return new WP_Error( $this->getErrorCode(), $this->getErrorMessage() );
+ }
+ $new_image_ids[$key][$index] = (int) $this->getResponse();
+ }
+ }
+ }
+
+ //new IDs needs to be injected into the post content
+ //replace old gallery code with a new one
+ $lenght = count( $matches[0] );
+ for ( $i = 0; $i < $lenght; $i++ ) {
+ $shortcode = $matches[0][$i];
+ //WP regex matches attribute with leading space, required here
+ $attribute = ' ids="' . implode( ',', $image_ids[$i] ) . '"';
+ $new_attribute = ' ids="' . implode( ',', $new_image_ids[$i] ) . '"';
+ $new_shortcode = str_replace( $attribute, $new_attribute, $shortcode );
+ $post_content = str_replace( $shortcode, $new_shortcode, $post_content );
+ }
+
+ return $post_content;
+ }
+
public function delete_post( $remote_post_id ) {
$result = $this->query(
@@ -425,6 +505,8 @@ class Syndication_WP_XMLRPC_Client_Extensions {
public static function push_syndicate_methods( $methods ) {
$methods['syndication.addThumbnail'] = array( __CLASS__, 'xmlrpc_add_thumbnail' );
$methods['syndication.deleteThumbnail'] = array( __CLASS__, 'xmlrpc_delete_thumbnail' );
+ $methods['syndication.postGalleryImage'] = array(__CLASS__, 'xmlrpc_post_gallery_images');
+
return $methods;
}
@@ -534,6 +616,79 @@ class Syndication_WP_XMLRPC_Client_Extensions {
}
+ /**
+ * Upload Image for the gallery shortcode
+ * @uses $wp_xmlrpc_server
+ * @param array $args Contains necessary parameters for XMLRCP call: user, paasword, image data
+ * @return integer $thumbnail_id New ID of the newly uploaded image to the remote site
+ */
+ public static function xmlrpc_post_gallery_images( $args ) {
+ global $wp_xmlrpc_server;
+
+ $wp_xmlrpc_server->escape( $args );
+
+ $blog_id = (int) $args[0];
+ $username = $args[1];
+ $password = $args[2];
+ $thumbnail_url = esc_url_raw( $args[3] );
+ $thumbnail_post_data = $args[4];
+ $thumbnail_alt_text = $args[5];
+
+ $thumbnail_raw = wp_remote_retrieve_body( wp_remote_get( $thumbnail_url ) );
+ if ( ! $thumbnail_raw ) {
+ return new IXR_Error( 500, __( 'Sorry, the image URL provided was incorrect.', 'syndication' ) );
+ }
+
+ $thumbnail_filename = basename( $thumbnail_url );
+ $thumbnail_type = wp_check_filetype( $thumbnail_filename );
+
+ $args = array(
+ $blog_id,
+ $username,
+ $password,
+ array(
+ 'name' => $thumbnail_filename,
+ 'type' => $thumbnail_type['type'],
+ 'bits' => $thumbnail_raw,
+ 'overwrite' => false,
+ ),
+ );
+
+ // Note: Leting mw_newMediaObject handle our auth and cap checks
+ $image = $wp_xmlrpc_server->mw_newMediaObject( $args );
+ if ( ! is_array( $image ) || empty($image['url'] ) ) {
+ return $image;
+ }
+
+ $thumbnail_id = (int) $image['id'];
+ if ( empty( $thumbnail_id ) ) {
+ return new IXR_Error( 500, __( 'Sorry, looks like the image upload failed.', 'syndication' ) );
+ }
+
+ $args = array(
+ $blog_id,
+ $username,
+ $password,
+ $thumbnail_id,
+ array(
+ 'post_title' => $thumbnail_post_data['post_title'],
+ 'post_content' => $thumbnail_post_data['post_content'],
+ 'post_excerpt' => $thumbnail_post_data['post_excerpt'],
+ ),
+ );
+
+ //update caption and description of the image
+ $result = $wp_xmlrpc_server->wp_editPost( $args );
+ if ( $result !== true ) {
+ //failed to update atatchment post details
+ //handle it th way you want it (log it, message it)
+ error_log('Syndication. xmlrpc_post_gallery_images Failed to update remote post attachments');
+ }
+ //update alt text of the image
+ update_post_meta( $thumbnail_id, '_wp_attachment_image_alt', $thumbnail_alt_text );
+
+ return $thumbnail_id;
+ } //end of xmlrpc_post_gallery_images()
}
Syndication_WP_XMLRPC_Client_Extensions::init();
--
GitLab