<?php
/*
Plugin Name: Framework for an e-mail on approve plugin
Plugin URI: http://www.theblog.ca/?p=162
Description: Send an e-mail to a commenter when their comment is approved.
Author: None
Version: beta
Author URI: http://www.theblog.ca/?p=162
*/

// ----------------------------------------------------------------------
// Follow the instructions in this section to customize the notifications
// ----------------------------------------------------------------------

// The URL to your site. Replace this with the base WordPress directory (containing the wp-admin folder) if the pending e-mail notification does not have the correct URL
$eoa_siteurl = get_option('siteurl');

// The name of your blog, to appear in the title of e-mails. Replace this if e-mail subjects aren't correct
$eoa_blogname = get_option('blogname');

// -------------------------------------------
// You should not have to edit below this line
// -------------------------------------------

function eoa_comment_approved($eoa_comment_id,$eoa_comment_status) {
	global $eoa_blogname, $eoa_blogurl, $user_identity, $user_email;

	// Get all the information about the comment
	$eoa_comment = get_comment($eoa_comment_id);

	// Get information about the post it pertains to
	$eoa_post = get_post($eoa_comment->comment_post_ID);

	// Check to see whether a comment is being approved
	if ($eoa_comment_status == 'approve' && $eoa_comment->comment_type == '') {

		// Get information about the currently logged in user, as the person approving the comment and thus the sender of the e-mail
		// Their name is mapped to $user_identity and their e-mail address is mapped to $user_email
		get_currentuserinfo();
		$eoa_fromname = $user_identity;
		$eoa_fromaddress = $user_email;

		// Line break, which we will use many times in constructing e-mails
		$eoa_eol = "\r\n";

		// Header stuff for an approved comment
		// Header stuff from http://ca.php.net/mail
		$eoa_headers = 'From: ' . $eoa_fromname . ' <' . $eoa_fromaddress . '>' . $eoa_eol;
		$eoa_headers .= 'Reply-To: ' . $eoa_fromname . ' <' . $eoa_fromaddress . '>' . $eoa_eol;
		$eoa_headers .= 'Return-Path: ' . $eoa_fromname. ' <' . $eoa_fromaddress .'>' . $eoa_eol;

		// E-mail subject for the approved comment
		$eoa_subject = '[' . $eoa_blogname . '] Comment on "' . $eoa_post->post_title. '" approved';

		// Body of the e-mail
		$eoa_body = 'Hi ' . $eoa_comment->comment_author . ',' . $eoa_eol . $eoa_eol;
		$eoa_body .= 'Your comment on the post "' . $eoa_post->post_title . '" has been approved:' . $eoa_eol . $eoa_eol;
		$eoa_body .= '"' . $eoa_comment->comment_content . '"' . $eoa_eol . $eoa_eol;
		$eoa_body .= 'See the post here: ' . get_permalink($eoa_comment->comment_post_ID) . '#comment-' . $eoa_comment_id;

		// Send the notification e-mail for an approved comment
		wp_mail($eoa_comment->comment_author_email, $eoa_subject, $eoa_body, $eoa_headers);
	}
}

add_filter('wp_set_comment_status', 'eoa_comment_approved','',2);
?>