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<?php |
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|
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/* |
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Plugin Name: Email Post Changes |
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Description: Whenever a change to a post or page is made, those changes are emailed to the blog's admin. |
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Plugin URI: http://wordpress.org/extend/plugins/email-post-changes/ |
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Version: 0.4 |
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Author: Michael D Adams |
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Author URI: http://blogwaffe.com/ |
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*/ |
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|
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class Email_Post_Changes { |
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var $defaults; |
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|
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var $left_post; |
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var $right_post; |
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|
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var $text_diff; |
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|
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const ADMIN_PAGE = 'email_post_changes'; |
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const OPTION_GROUP = 'email_post_changes'; |
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const OPTION = 'email_post_changes'; |
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|
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function &init() { |
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static $instance = null; |
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|
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if ( $instance ) |
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return $instance; |
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|
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$class = __CLASS__; |
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$instance = new $class; |
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} |
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|
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function __construct() { |
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$this->defaults = array( |
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'emails' => array( get_option( 'admin_email' ) ), |
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'post_types' => array( 'post', 'page' ) |
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); |
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|
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add_action( 'wp_insert_post', array( &$this, 'wp_insert_post' ), 10, 2 ); |
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add_action( 'admin_menu', array( &$this, 'admin_menu' ) ); |
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} |
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|
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function get_post_types() { |
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$post_types = get_post_types(); |
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if ( false !== $pos = array_search( 'revision', $post_types ) ) |
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unset( $post_types[$pos] ); |
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return $post_types; |
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} |
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|
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function get_options( $just_defaults = false ) { |
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if ( $just_defaults ) |
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return $this->defaults; |
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|
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return get_option( 'email_post_changes', $this->defaults ); |
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} |
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|
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// The meat of the plugin |
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function wp_insert_post( $post_id, $post ) { |
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$options = $this->get_options(); |
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|
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if ( 'revision' == $post->post_type ) { // Revision is saved first |
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if ( wp_is_post_autosave( $post ) ) |
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return; |
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$this->left_post = $post; |
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} elseif ( !empty( $this->left_post ) && $this->left_post->post_parent == $post->ID ) { // Then new post |
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if ( !in_array( $post->post_type, $options['post_types'] ) ) |
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return; |
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$this->right_post = $post; |
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} |
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|
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if ( !$this->left_post || !$this->right_post ) |
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return; |
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|
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$html_diffs = array(); |
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$text_diffs = array(); |
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$identical = true; |
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foreach ( _wp_post_revision_fields() as $field => $field_title ) { |
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$left = apply_filters( "_wp_post_revision_field_$field", $this->left_post->$field, $field ); |
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$right = apply_filters( "_wp_post_revision_field_$field", $this->right_post->$field, $field ); |
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|
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if ( !$diff = wp_text_diff( $left, $right ) ) |
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continue; |
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$html_diffs[$field_title] = $diff; |
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|
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$left = normalize_whitespace( $left ); |
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$right = normalize_whitespace( $right ); |
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|
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$left_lines = split( "\n", $left ); |
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$right_lines = split( "\n", $right ); |
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|
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require_once( dirname( __FILE__ ) . '/unified.php' ); |
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|
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$text_diff = new Text_Diff( $left_lines, $right_lines ); |
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$renderer = new Text_Diff_Renderer_unified(); |
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$text_diffs[$field_title] = $renderer->render($text_diff); |
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|
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$identical = false; |
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} |
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|
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if ( $identical ) |
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return; |
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|
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// Grab the meta data |
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$the_author = get_the_author_meta( 'display_name', $this->left_post->post_author ); // The revision |
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$the_title = get_the_title( $this->right_post->ID ); // New title (may be same as old title) |
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$right_date = new DateTime( $this->right_post->post_modified_gmt, new DateTimeZone( 'UTC' ) ); // Modified time |
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$the_date = $right_date->format( 'j F, Y \a\t G:i \U\T\C' ); |
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$the_permalink = clean_url( get_permalink( $this->right_post->ID ) ); |
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$the_edit_link = clean_url( get_edit_post_link( $this->right_post->ID ) ); |
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|
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$left_title = __( 'Revision' ); |
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$right_title = sprintf( __( 'Current %s' ), $post_type = ucfirst( $this->right_post->post_type ) ); |
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|
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$head_sprintf = __( '%s made the following changes to the %s %s on %s' ); |
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|
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|
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// HTML |
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$html_diff_head = '<h2>' . sprintf( __( '%s changed' ), $post_type ) . "</h2>\n"; |
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$html_diff_head .= '<p>' . sprintf( $head_sprintf, |
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esc_html( $the_author ), |
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sprintf( _x( '“%s” [%s]', '1 = link, 2 = "edit"' ), |
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"<a href='$the_permalink'>" . esc_html( $the_title ) . '</a>', |
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"<a href='$the_edit_link'>" . __( 'edit' ) . '</a>' |
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), |
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$this->right_post->post_type, |
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$the_date |
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) . "</p>\n\n"; |
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|
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$html_diff_head .= "<table style='width: 100%; border-collapse: collapse; border: none;'><tr>\n"; |
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$html_diff_head .= "<td style='width: 50%; padding: 0; margin: 0;'>" . esc_html( $left_title ) . ' @ ' . esc_html( $this->left_post->post_date_gmt ) . "</td>\n"; |
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$html_diff_head .= "<td style='width: 50%; padding: 0; margin: 0;'>" . esc_html( $right_title ) . ' @ ' . esc_html( $this->right_post->post_modified_gmt ) . "</td>\n"; |
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$html_diff_head .= "</tr></table>\n\n"; |
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|
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$html_diff = ''; |
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foreach ( $html_diffs as $field_title => $diff ) { |
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$html_diff .= '<h3>' . esc_html( $field_title ) . "</h3>\n"; |
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$html_diff .= "$diff\n\n"; |
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} |
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|
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$html_diff = rtrim( $html_diff ); |
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|
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// Replace classes with inline style |
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$html_diff = str_replace( "class='diff'", 'style="width: 100%; border-collapse: collapse; border: none; white-space: pre-wrap; word-wrap: break-word; font-family: Consolas,Monaco,Courier,monospace;"', $html_diff ); |
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$html_diff = preg_replace( '#<col[^>]+/?>#i', '', $html_diff ); |
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$html_diff = str_replace( "class='diff-deletedline'", 'style="padding: 5px; width: 50%; background-color: #fdd;"', $html_diff ); |
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$html_diff = str_replace( "class='diff-addedline'", 'style="padding: 5px; width: 50%; background-color: #dfd;"', $html_diff ); |
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$html_diff = str_replace( "class='diff-context'", 'style="padding: 5px; width: 50%;"', $html_diff ); |
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$html_diff = str_replace( '<td>', '<td style="padding: 5px;">', $html_diff ); |
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$html_diff = str_replace( '<del>', '<del style="text-decoration: none; background-color: #f99;">', $html_diff ); |
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$html_diff = str_replace( '<ins>', '<ins style="text-decoration: none; background-color: #9f9;">', $html_diff ); |
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$html_diff = str_replace( array( '</td>', '</tr>', '</tbody>' ), array( "</td>\n", "</tr>\n", "</tbody>\n" ), $html_diff ); |
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|
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$html_diff = $html_diff_head . $html_diff; |
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|
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|
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// Refactor some of the meta data for TEXT |
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$length = max( strlen( $left_title ), strlen( $right_title ) ); |
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$left_title = str_pad( $left_title, $length + 2 ); |
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$right_title = str_pad( $right_title, $length + 2 ); |
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|
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// TEXT |
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$text_diff = sprintf( $head_sprintf, $the_author, '"' . $the_title . '"', $this->right_post->post_type, $the_date ) . "\n"; |
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$text_diff .= "URL: $the_permalink\n"; |
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$text_diff .= "Edit: $the_edit_link\n\n"; |
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|
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foreach ( $text_diffs as $field_title => $diff ) { |
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$text_diff .= "$field_title\n"; |
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$text_diff .= "===================================================================\n"; |
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$text_diff .= "--- $left_title ({$this->left_post->post_date_gmt})\n"; |
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$text_diff .= "+++ $right_title ({$this->right_post->post_modified_gmt})\n"; |
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$text_diff .= "$diff\n\n"; |
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} |
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|
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$this->text_diff = $text_diff = rtrim( $text_diff ); |
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|
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|
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// Send email |
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$blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); |
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$title = wp_specialchars_decode( $the_title, ENT_QUOTES ); |
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|
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add_action( 'phpmailer_init', array( &$this, 'phpmailer_init_once' ) ); |
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|
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wp_mail( |
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null, // see hack in ::phpmailer_init_once() |
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sprintf( __( '[%s] %s changed: %s' ), $blogname, $post_type, $title ), |
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$html_diff |
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); |
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} |
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|
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/* Email hook */ |
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function phpmailer_init_once( &$phpmailer ) { |
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remove_action( 'phpmailer_init', array( &$this, 'phpmailer_init_once' ) ); |
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$phpmailer->AltBody = $this->text_diff; |
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|
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$phpmailer->to = array(); // Hack |
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|
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$options = $this->get_options(); |
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foreach ( $options['emails'] as $email ) |
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$phpmailer->AddBCC( $email ); |
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|
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$phpmailer->AddReplyTo( |
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get_the_author_meta( 'email', $this->right_post->post_author ), |
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get_the_author_meta( 'display_name', $this->right_post->post_author ) |
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); |
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} |
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|
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/* Admin */ |
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function admin_menu() { |
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register_setting( self::OPTION_GROUP, self::OPTION, array( &$this, 'validate_options' ) ); |
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|
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add_settings_section( self::ADMIN_PAGE, __( 'Email Post Changes' ), array( &$this, 'settings_section' ), self::ADMIN_PAGE ); |
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add_settings_field( self::ADMIN_PAGE . '_emails', __( 'Email Addresses' ), array( &$this, 'emails_setting' ), self::ADMIN_PAGE, self::ADMIN_PAGE ); |
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add_settings_field( self::ADMIN_PAGE . '_post_types', __( 'Post Types' ), array( &$this, 'post_types_setting' ), self::ADMIN_PAGE, self::ADMIN_PAGE ); |
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|
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add_options_page( __( 'Email Post Changes' ), __( 'Email Post Changes' ), 'manage_options', self::ADMIN_PAGE, array( &$this, 'admin_page' ) ); |
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|
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add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), array( &$this, 'plugin_action_links' ) ); |
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} |
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|
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function validate_options( $options ) { |
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if ( !$options || !is_array( $options ) ) |
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return $this->defaults; |
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|
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$return = array(); |
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|
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if ( empty( $options['emails'] ) ) { |
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$return['emails'] = $this->defaults['emails']; |
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} else { |
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if ( is_string( $options['emails'] ) ) |
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$_emails = preg_split( '(\n|\r)', $options['emails'], -1, PREG_SPLIT_NO_EMPTY ); |
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$_emails = array_unique( (array) $_emails ); |
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$emails = array_filter( $_emails, 'is_email' ); |
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if ( $diff = array_diff( $_emails, $emails ) ) |
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$return['invalid_emails'] = $diff; |
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$return['emails'] = $emails ? $emails : $this->defaults['emails']; |
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} |
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|
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if ( empty( $options['post_types'] ) || !is_array( $options ) ) { |
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$return['post_types'] = $this->defaults['post_types']; |
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} else { |
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$post_types = array_intersect( $options['post_types'], $this->get_post_types() ); |
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$return['post_types'] = $post_types ? $post_types : $this->defaults['post_types']; |
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} |
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|
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return $return; |
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} |
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|
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function admin_page() { |
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$options = $this->get_options(); |
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?> |
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|
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<div class="wrap"> |
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<h2><?php _e( 'Email Post Changes' ); ?></h2> |
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<?php if ( !empty( $options['invalid_emails'] ) ) : ?> |
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|
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<div class="error"> |
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<p><?php printf( _n( 'Invalid Email: %s', 'Invalid Emails: %s', count( $options['invalid_emails'] ) ), '<kbd>' . join( '</kbd>, <kbd>', array_map( 'esc_html', $options['invalid_emails'] ) ) ); ?></p> |
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</div> |
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<?php endif; ?> |
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|
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<form action="options.php" method="post"> |
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<?php settings_fields( self::OPTION_GROUP ); ?> |
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<?php do_settings_sections( self::ADMIN_PAGE ); ?> |
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<p class="submit"> |
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<input type="submit" class="button-primary" value="<?php esc_attr_e( 'Save Changes' ); ?>" /> |
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</p> |
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</form> |
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</div> |
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<?php |
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} |
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|
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function settings_section() {} // stub |
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|
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function emails_setting() { |
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$options = $this->get_options(); |
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?> |
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<textarea rows="4" cols="40" style="width: 40em;" name="email_post_changes[emails]"><?php echo esc_html( join( "\n", $options['emails'] ) ); ?></textarea> |
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<p class="description"><?php _e( 'Send emails to these addresses. One per line.' ); ?></p> |
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<p class="description"><?php printf( |
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__( "If blank, send emails to this site’s <a href='%s'>admin email address</a>." ), |
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clean_url( get_bloginfo( 'wpurl' ) . '/wp-admin/options-general.php#admin_email' ) |
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); ?></p> |
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<?php |
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} |
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|
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function post_types_setting() { |
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$options = $this->get_options(); |
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?> |
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|
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<ul> |
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<?php foreach ( $this->get_post_types() as $post_type ) : ?> |
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|
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<li><label><input type="checkbox" name="email_post_changes[post_types][]" value="<?php echo esc_attr( $post_type ); ?>"<?php checked( in_array( $post_type, $options['post_types'] ) ); ?> /> <?php echo esc_html( ucfirst( $post_type ) ); ?></label></li> |
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<?php endforeach; ?> |
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|
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</ul> |
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<p class="description"><?php _e( 'Send emails when a post of these post types changes.' ); ?></p> |
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<p class="description"><?php _e( 'If none are selected, “post” and “page” will be checked by default.' ); ?></p> |
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<?php |
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} |
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|
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function plugin_action_links( $links ) { |
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array_unshift( $links, '<a href="options-general.php?page=' . self::ADMIN_PAGE . '">' . __( 'Settings' ) . "</a>" ); |
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return $links; |
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} |
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} |
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|
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add_action( 'init', array( 'Email_Post_Changes', 'init' ) ); |
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|
