From e7d3cf9d68cc01f65911f6a69a3b4644ece2f1ca Mon Sep 17 00:00:00 2001
From: Greg <greg@toolstack.com>
Date: Fri, 13 Jan 2023 15:47:13 -0500
Subject: [PATCH] Convert template codes to shortcodes.

As well as add new shortcodes for:

[ap_hashcats] - The post's categories as hashtags
[ap_image] - The URL for the post's featured image, full size
[ap_thumbnail] - The URL for the post's featured image thumbnail size
[ap_author] - The author's name
[ap_authorurl] - The URL to the author's profile page
[ap_date] - The post's date
[ap_time] - The post's time
[ap_datetime] - The post's date/time formated as "date @ time"
[ap_blogurl] - The URL to the site
[ap_blogname] - The name of the site
[ap_blogdesc] - The description of the site
---
 activitypub.php               |   2 +-
 includes/model/class-post.php | 232 +++++++++++++++++++++++++++++++---
 templates/settings.php        |  30 ++++-
 3 files changed, 239 insertions(+), 25 deletions(-)

diff --git a/activitypub.php b/activitypub.php
index d9f2a61..b347814 100644
--- a/activitypub.php
+++ b/activitypub.php
@@ -22,7 +22,7 @@ function init() {
 	\defined( 'ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS' ) || \define( 'ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS', 3 );
 	\defined( 'ACTIVITYPUB_HASHTAGS_REGEXP' ) || \define( 'ACTIVITYPUB_HASHTAGS_REGEXP', '(?:(?<=\s)|(?<=<p>)|(?<=<br>)|^)#([A-Za-z0-9_]+)(?:(?=\s|[[:punct:]]|$))' );
 	\defined( 'ACTIVITYPUB_ALLOWED_HTML' ) || \define( 'ACTIVITYPUB_ALLOWED_HTML', '<strong><a><p><ul><ol><li><code><blockquote><pre><img>' );
-	\defined( 'ACTIVITYPUB_CUSTOM_POST_CONTENT' ) || \define( 'ACTIVITYPUB_CUSTOM_POST_CONTENT', "<p><strong>%title%</strong></p>\n\n%content%\n\n<p>%hashtags%</p>\n\n<p>%shortlink%</p>" );
+	\defined( 'ACTIVITYPUB_CUSTOM_POST_CONTENT' ) || \define( 'ACTIVITYPUB_CUSTOM_POST_CONTENT', "<p><strong>[ap_title]</strong></p>\n\n[ap_content]\n\n<p>[ap_hashtags]</p>\n\n<p>[ap_shortlink]</p>" );
 	\define( 'ACTIVITYPUB_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
 	\define( 'ACTIVITYPUB_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );
 	\define( 'ACTIVITYPUB_PLUGIN_FILE', plugin_dir_path( __FILE__ ) . '/' . basename( __FILE__ ) );
diff --git a/includes/model/class-post.php b/includes/model/class-post.php
index 80c4d25..a062829 100644
--- a/includes/model/class-post.php
+++ b/includes/model/class-post.php
@@ -26,6 +26,12 @@ class Post {
 		$this->attachments = $this->generate_attachments();
 		$this->tags        = $this->generate_tags();
 		$this->object_type = $this->generate_object_type();
+
+		$shortcodes = array( 'ap_title', 'ap_excerpt', 'ap_content', 'ap_permalink', 'ap_shortlink', 'ap_hashtags', 'ap_thumbnail', 'ap_image', 'ap_hashcats', 'ap_author', 'ap_authorurl', 'ap_blogurl', 'ap_blogname', 'ap_blogdesc', 'ap_date', 'ap_time', 'ap_datetime' );
+
+		foreach( $shortcodes as $tag ) {
+			add_shortcode( $tag, [ $this, 'shortcode_content' ] );
+		}
 	}
 
 	public function __call( $method, $params ) {
@@ -226,18 +232,88 @@ class Post {
 		return $object_type;
 	}
 
+	public function shortcode_content( $atts, $content, $tag ) {
+		$tag = strtolower( $tag );
+		$post = $this->post;
+
+		switch( $tag ) {
+			case 'ap_title':
+				echo \get_the_title( $post->ID );
+
+				break;
+			case 'ap_excerpt':
+				echo $this->get_the_post_excerpt();
+
+				break;
+			case 'ap_content':
+				echo $this->get_the_post_content();
+
+				break;
+			case 'ap_permalink':
+				echo $this->get_the_post_link( 'permalink' );
+
+				break;
+			case 'ap_shortlink':
+				echo $this->get_the_post_link( 'shortlink' );
+
+				break;
+			case 'ap_hashtags':
+				echo $this->get_the_post_hashtags();
+
+				break;
+			case 'ap_thumbnail':
+				echo $this->get_the_post_image( 'thumbnail' );
+
+				break;
+			case 'ap_image':
+				echo $this->get_the_post_image();
+
+				break;
+			case 'ap_hashcats':
+				echo $this->get_the_post_categories();
+
+				break;
+			case 'ap_author':
+				echo $this->get_the_post_author();
+
+				break;
+			case 'ap_authorurl':
+				echo $this->get_the_post_author_url();
+
+				break;
+			case 'ap_blogurl':
+				echo \get_bloginfo('url');
+
+				break;
+			case 'ap_blogname':
+				echo \get_bloginfo('name');
+
+				break;
+			case 'ap_blogdesc':
+				echo \get_bloginfo('description');
+
+				break;
+			case 'ap_date':
+				echo  $this->get_the_post_date( 'time' );
+
+				break;
+			case 'ap_time':
+				echo $this->get_the_post_date( 'date' );
+
+				break;
+			case 'ap_datetime':
+				echo $this->get_the_post_date( 'both' );
+
+				break;
+		}
+	}
+
 	public function generate_the_content() {
 		$post = $this->post;
 		$content = $this->get_post_content_template();
 
-		$content = \str_replace( '%title%', \get_the_title( $post->ID ), $content );
-		$content = \str_replace( '%excerpt%', $this->get_the_post_excerpt(), $content );
-		$content = \str_replace( '%content%', $this->get_the_post_content(), $content );
-		$content = \str_replace( '%permalink%', $this->get_the_post_link( 'permalink' ), $content );
-		$content = \str_replace( '%shortlink%', $this->get_the_post_link( 'shortlink' ), $content );
-		$content = \str_replace( '%hashtags%', $this->get_the_post_hashtags(), $content );
-		// backwards compatibility
-		$content = \str_replace( '%tags%', $this->get_the_post_hashtags(), $content );
+		// Fill in the shortcodes.
+		$content = do_shortcode( $content );
 
 		$content = \trim( \preg_replace( '/[\r\n]{2,}/', '', $content ) );
 
@@ -255,18 +331,36 @@ class Post {
 
 	public function get_post_content_template() {
 		if ( 'excerpt' === \get_option( 'activitypub_post_content_type', 'content' ) ) {
-			return "%excerpt%\n\n<p>%permalink%</p>";
+			return "[ap_excerpt]\n\n<p>[ap_permalink]</p>";
 		}
 
 		if ( 'title' === \get_option( 'activitypub_post_content_type', 'content' ) ) {
-			return "<p><strong>%title%</strong></p>\n\n<p>%permalink%</p>";
+			return "<p><strong>[ap_title]</strong></p>\n\n<p>[ap_permalink]</p>";
 		}
 
 		if ( 'content' === \get_option( 'activitypub_post_content_type', 'content' ) ) {
-			return "%content%\n\n<p>%hashtags%</p>\n\n<p>%permalink%</p>";
+			return "[ap_content]\n\n<p>[ap_hashtags]</p>\n\n<p>[ap_permalink]</p>";
 		}
 
-		return \get_option( 'activitypub_custom_post_content', ACTIVITYPUB_CUSTOM_POST_CONTENT );
+		// Get the custom template.
+		$content = \get_option( 'activitypub_custom_post_content', ACTIVITYPUB_CUSTOM_POST_CONTENT );
+		$old_content = $content;
+
+		// Backwards compatibility, templates are now deprecated convert to shortcodes instead.
+		$content = \str_replace( '%title%', '[ap_title]', $content );
+		$content = \str_replace( '%excerpt%', '[ap_excerpt]', $content );
+		$content = \str_replace( '%content%', '[ap_content]', $content );
+		$content = \str_replace( '%permalink%', '[ap_permalink]', $content );
+		$content = \str_replace( '%shortlink%', '[ap_shortlink]', $content );
+		$content = \str_replace( '%hashtags%', '[ap_hashtags]', $content );
+		$content = \str_replace( '%tags%', '[ap_hashtags]', $content );
+
+		// Store the new template if required.
+		if( $content != $old_content ) {
+			\update_option( 'activitypub_custom_post_content', $content );
+		}
+
+		return $content;
 	}
 
 	/**
@@ -322,8 +416,7 @@ class Post {
 	/**
 	 * Adds a backlink to the post/summary content
 	 *
-	 * @param string  $content
-	 * @param WP_Post $post
+	 * @param string  $type
 	 *
 	 * @return string
 	 */
@@ -344,9 +437,6 @@ class Post {
 	/**
 	 * Adds all tags as hashtags to the post/summary content
 	 *
-	 * @param string  $content
-	 * @param WP_Post $post
-	 *
 	 * @return string
 	 */
 	public function get_the_post_hashtags() {
@@ -365,4 +455,112 @@ class Post {
 
 		return \implode( ' ', $hash_tags );
 	}
+
+	/**
+	 * Adds the featured image url to the post/summary content
+	 *
+	 * @param string  $size
+	 *
+	 * @return string
+	 */
+	public function get_the_post_image( $size = 'full' ) {
+		$post = $this->post;
+
+		if( $size == '' ) { $size = 'full'; }
+
+		$image = \get_the_post_thumbnail_url( $post->ID, $size );
+
+		if ( ! $image ) {
+			return '';
+		}
+
+		return $image;
+	}
+
+	/**
+	 * Adds all categories as hashtags to the post/summary content
+	 *
+	 * @return string
+	 */
+	public function get_the_post_categories() {
+		$post = $this->post;
+		$categories = \get_the_category( $post->ID );
+
+		if ( ! $categories ) {
+			return '';
+		}
+
+		$hash_tags = array();
+
+		foreach ( $categories as $category ) {
+			$hash_tags[] = \sprintf( '<a rel="tag" class="u-tag u-category" href="%s">#%s</a>', \get_category_link( $category ), $category->slug );
+		}
+
+		return \implode( ' ', $hash_tags );
+	}
+
+	/**
+	 * Adds author to the post/summary content
+	 *
+	 * @return string
+	 */
+	public function get_the_post_author() {
+		$post = $this->post;
+		$name = \get_the_author_meta( 'display_name', $post->post_author );
+
+		if ( ! $name ) {
+			return '';
+		}
+
+		return $name;
+	}
+
+	/**
+	 * Adds author's url to the post/summary content
+	 *
+	 * @return string
+	 */
+	public function get_the_post_profile_url() {
+		$post = $this->post;
+		$url = \get_the_author_meta( 'user_url', $post->post_author );
+
+		if ( ! $url ) {
+			return '';
+		}
+
+		return $url;
+	}
+
+	/**
+	 * Adds the post date/time to the post/summary content
+	 *
+	 * @param string display
+	 *
+	 * @return string
+	 */
+	public function get_the_post_date( $display = 'both' ) {
+		$post = $this->post;
+		$datetime = \get_post_datetime( $post );
+		$dateformat = \get_option( 'date_format' );
+		$timeformat = \get_option( 'time_format' );
+
+		switch( $display ) {
+			case 'date':
+				$date = $datetime->format( $dateformat );
+				break;
+			case 'time':
+				$date = $datetime->format( $timeformat );
+				break;
+			default:
+				$date = $datetime->format( $dateformat . ' @ ' . $timeformat );
+				break;
+		}
+
+		if ( ! $date ) {
+			return '';
+		}
+
+		return $date;
+	}
+
 }
diff --git a/templates/settings.php b/templates/settings.php
index 9450195..e8d6529 100644
--- a/templates/settings.php
+++ b/templates/settings.php
@@ -7,6 +7,10 @@
 		'welcome' => '',
 	)
 );
+
+$image_sizes = wp_get_registered_image_subsizes();
+$thumnail_size = $image_sizes['thumbnail']['width'] . 'x' . $image_sizes['thumbnail']['height'] . ' px';
+
 ?>
 
 <div class="privacy-settings-body hide-if-no-js">
@@ -56,17 +60,29 @@
 						<p>
 							<textarea name="activitypub_custom_post_content" id="activitypub_custom_post_content" rows="10" cols="50" class="large-text" placeholder="<?php echo wp_kses( ACTIVITYPUB_CUSTOM_POST_CONTENT, 'post' ); ?>"><?php echo wp_kses( \get_option( 'activitypub_custom_post_content', ACTIVITYPUB_CUSTOM_POST_CONTENT ), 'post' ); ?></textarea>
 							<details>
-								<summary><?php esc_html_e( 'See the complete list of template patterns.', 'activitypub' ); ?></summary>
+								<summary><?php esc_html_e( 'See the complete list of activitypub shortcodes.', 'activitypub' ); ?></summary>
 								<div class="description">
 									<ul>
-										<li><code>%title%</code> - <?php \esc_html_e( 'The Post-Title.', 'activitypub' ); ?></li>
-										<li><code>%content%</code> - <?php \esc_html_e( 'The Post-Content.', 'activitypub' ); ?></li>
-										<li><code>%excerpt%</code> - <?php \esc_html_e( 'The Post-Excerpt (default 400 Chars).', 'activitypub' ); ?></li>
-										<li><code>%permalink%</code> - <?php \esc_html_e( 'The Post-Permalink.', 'activitypub' ); ?></li>
+										<li><code>[ap_title]</code> - <?php \esc_html_e( 'The Post-Title.', 'activitypub' ); ?></li>
+										<li><code>[ap_content]</code> - <?php \esc_html_e( 'The Post-Content.', 'activitypub' ); ?></li>
+										<li><code>[ap_excerpt]</code> - <?php \esc_html_e( 'The Post-Excerpt (default 400 Chars).', 'activitypub' ); ?></li>
+										<li><code>[ap_permalink]</code> - <?php \esc_html_e( 'The Post-Permalink.', 'activitypub' ); ?></li>
 										<?php // translators: ?>
-										<li><code>%shortlink%</code> - <?php echo \wp_kses( \__( 'The Post-Shortlink. I can recommend <a href="https://wordpress.org/plugins/hum/" target="_blank">Hum</a>, to prettify the Shortlinks', 'activitypub' ), 'default' ); ?></li>
-										<li><code>%hashtags%</code> - <?php \esc_html_e( 'The Tags as Hashtags.', 'activitypub' ); ?></li>
+										<li><code>[ap_shortlink]</code> - <?php echo \wp_kses( \__( 'The Post-Shortlink. I can recommend <a href="https://wordpress.org/plugins/hum/" target="_blank">Hum</a>, to prettify the Shortlinks', 'activitypub' ), 'default' ); ?></li>
+										<li><code>[ap_hashtags]</code> - <?php \esc_html_e( 'The Tags as Hashtags.', 'activitypub' ); ?></li>
+										<li><code>[ap_hashcats]</code> - <?php \esc_html_e( 'The post\'s categories as hashtags.', 'activitypub' ); ?></li>
+										<li><code>[ap_image]</code> - <?php \esc_html_e( 'The URL for the post\'s featured image, full size.', 'activitypub' ); ?></li>
+										<li><code>[ap_thumbnail]</code> - <?php echo \wp_kses( sprintf( __( 'The URL for the post\'s featured image thumbnail size (%s).', 'activitypub'), $thumnail_size ), 'default' ); ?></li>
+										<li><code>[ap_author]</code> - <?php \esc_html_e( 'The author\'s name.', 'activitypub' ); ?></li>
+										<li><code>[ap_authorurl]</code> - <?php \esc_html_e( 'The URL to the author\'s profile page.', 'activitypub' ); ?></li>
+										<li><code>[ap_date]</code> - <?php \esc_html_e( 'The post\'s date.', 'activitypub' ); ?></li>
+										<li><code>[ap_time]</code> - <?php \esc_html_e( 'The post\'s time.', 'activitypub' ); ?></li>
+										<li><code>[ap_datetime]</code> - <?php \esc_html_e( 'The post\'s date/time formated as "date @ time".', 'activitypub' ); ?></li>
+										<li><code>[ap_blogurl]</code> - <?php \esc_html_e( 'The URL to the site.', 'activitypub' ); ?></li>
+										<li><code>[ap_blogname]</code> - <?php \esc_html_e( 'The name of the site.', 'activitypub' ); ?></li>
+										<li><code>[ap_blogdesc]</code> - <?php \esc_html_e( 'The description of the site.', 'activitypub' ); ?></li>
 									</ul>
+									<p><?php esc_html_e( 'Note: the old template codes are now deprecated and automatically converted to the new shortcodes.'); ?>
 								</div>
 							</details>
 						</p>