관리-도구

편집 파일: wpbook.php

<?php
/*
Plugin Name: WPBook
Plugin URI: http://wpbook.net/
Date: 2012, March 10th
Description: Plugin to embed Wordpress Blog into Facebook Canvas using the Facebook Platform. 
Author: John Eckman
Author URI: http://johneckman.com
Version: 2.4
Stable tag: 2.4
*/
  
/*
Note: This plugin draws inspiration (and sometimes code) from: 
   Alex King's WP-Mobile plugin (http://alexking.org/projects/wordpress ) 
   and BraveNewCode's WPTouch (http://www.bravenewcode.com/wptouch/
   as well as Devbit's List Pages Plus (http://skullbit.com/wordpress-plugin/list-pages-plus/) 
   and Steve Atty's Wordbooker (http://wordpress.org/extend/plugins/wordbooker/ )
   the WP admin interface was inspired by (read: copied from) Ozh's YOURLS: WordPress to Twitter 
   (http://wordpress.org/extend/plugins/yourls-wordpress-to-twitter/)
*/

/*  
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

if (version_compare(PHP_VERSION, '5.0.0', '<')) {
  wp_die("Sorry, but you can't run this plugin, it requires PHP 5 or higher.");
} else { 
  include(WP_PLUGIN_DIR .'/wpbook/includes/wpbook_cron.php');
}
  
// this function checks for admin pages
if (!function_exists('is_admin_page')) {
  function is_admin_page() {
    if (function_exists('is_admin')) {
      return is_admin();
    }
		if (function_exists('check_admin_referer')) {
			return true;
		}
		else {
			return false;
		}
  }
}

$_SERVER['REQUEST_URI'] = ( isset($_SERVER['REQUEST_URI']) ? 
  $_SERVER['REQUEST_URI'] : $_SERVER['SCRIPT_NAME'] 
  . (( isset($_SERVER['QUERY_STRING']) ? '?' 
  . $_SERVER['QUERY_STRING'] : '')));

// activation, install, uninstall need work  
function wpbook_activate() {
  wpbook_activation_check();
  $dummy=wp_clear_scheduled_hook('wpbook_cron_job');
	$dummy=wp_schedule_event(time(), 'hourly', 'wpbook_cron_job');
}

function wpbook_deactivate() {
  wp_clear_scheduled_hook('wpbook_cron_job');
}

function is_authorized() {
  global $user_level;
	if (function_exists("current_user_can")) {
		return current_user_can('activate_plugins');
	} else {
		return $user_level > 5;
	}
}

//function to add css and java to the header of the admin page 
function wpbook_admin_head() {
	$plugin_url= WP_PLUGIN_URL;
	wp_enqueue_script('wpbook_admin_javascript.js', $plugin_url.'/wpbook/admin_includes/wpbook_admin_javascript.js');
	wp_enqueue_style('wpbook_admin_styles.css', $plugin_url.'/wpbook/admin_includes/wpbook_admin_styles.css');
 }
  
//function to list pages to exclude taken from List Pages Plus 
function wpbook_exclude_Page(){
  global $wpdb;
  $wpbookAdminOptions = wpbook_getAdminOptions();
  $pages = $wpdb->get_results( "SELECT ID, post_title FROM $wpdb->posts WHERE post_type='page' ORDER BY post_parent, menu_order, post_title ASC" );
  $select = $wpbookAdminOptions['exclude_pages'];
  $select = explode(",", $select);
  $out = "<ul>";
  if(!is_array($select)) {
    $select = array($select);
  }
  foreach( $pages as $pg ) {
    $out .= "<li class='options'><input type='checkbox'  name='exclude_pages[]' value='".$pg->ID ."' id='$pg->ID'";
    if( in_array($pg->ID, $select)) {
      $out .= " checked";
    }
    $out .= "> ". $pg->post_title."</li>";
  } // end foreach
  $out .= "</ul>";
  echo $out;
}

echo '<p>';
				echo '<input type="radio" value="note" name="post_as" ';
				if(($wpbookAdminOptions['wpbook_as_note'] == 'note') || ($wpbookAdminOptions['wpbook_as_note'] == 'true')) 
					echo 'checked';
				echo ' > Publish as Notes</p>';
		
				echo '<p>';
				echo '<input type="radio" value="link" name="post_as" ';
				if($wpbookAdminOptions['wpbook_as_note'] == 'link') 
					echo 'checked';
				echo ' > Publish as Links. (Note: This assumes appropriate Facebook open graph metadata is provided by your blog.)</p>';
				echo '</p></div>'; // end post type options
		
				echo '<p><input type="checkbox" name="stream_publish_pages" value="true" ';
				if( htmlentities($wpbookAdminOptions['stream_publish_pages']) == "true") {
					echo("checked");
				}
				echo ' id="set_2" > Publish new posts to the wall of this page/group: ';
				echo '<p class="wpbook_hidden wpbook_option_set_2 sub_options">Page ID: <input type="text" name="fb_page_target" value="';
				echo preg_replace("#[^0-9]#","",htmlentities($wpbookAdminOptions['fb_page_target'])) .'" size="15" /> ';
				echo ' (Information on <a href="http://socialmediaseo.net/2010/02/20/how-to-find-facebook-id/">finding your Page ID</a>)</p>';
      
				echo '<p class="wpbook_hidden wpbook_option_set_2 sub_options">Group ID: <input type="text" name="wpbook_target_group" value="';
				echo preg_replace("#[^0-9]#","",htmlentities($wpbookAdminOptions['wpbook_target_group'])) .'" size="15" /> ';
				echo ' (Generally your GroupID should be in your url, like: http://www.facebook.com/group.php?gid=149948248362737 - the gid is the group ID). </p>';
       		
				echo '<p><strong>Page / Group Post Type Options</strong><br/>';
				echo '<div style="padding-left: 10px">';
				echo '<input type="radio" value="post" name="page_post_as" ';
				if(($wpbookAdminOptions['wpbook_as_link'] == 'post') || ($wpbookAdminOptions['wpbook_as_note'] == '')) 
					echo 'checked';	
				echo " > Publish as Posts. (Default: if you don't know the difference, don't change this.)</p>";		
				echo '<p>';
				echo '<input type="radio" value="link" name="page_post_as" ';
				if($wpbookAdminOptions['wpbook_as_link'] == 'link') 
					echo 'checked';
				echo ' > Publish as Links. (Note: This assumes appropriate Facebook open graph metadata is provided by your blog.)</p>';
				echo '</p></div>'; // end post type options
				
			
				echo '<p><input type="checkbox" name="promote_external" value="true" ';
				if( htmlentities($wpbookAdminOptions['promote_external']) == "true") {
					echo("checked");
				}
				echo ' id="promote_external" > Use external permalinks on Walls (applies to profiles, pages, and groups)</p>';
				
				
				echo '<p><strong>Stream Debug Options</strong><br/><input type="checkbox" name="wpbook_enable_debug" value="true" ';
				if( htmlentities($wpbookAdminOptions['wpbook_enable_debug']) == "true") {
					echo("checked");
				}
				echo ' id="wpbook_enable_debug" > Enable WPBook to create a debug file';
				echo '<br/><input type="checkbox" name="show_errors" value="true" ';
				if( htmlentities($wpbookAdminOptions['show_errors']) == "true") {
					echo("checked");
				}
				echo ' id="show_errors" > Show errors posting to Facebook Stream </p>';

echo '<p><input type="checkbox" name="wpbook_disable_sslverify" value="true" ';
				if( htmlentities($wpbookAdminOptions['wpbook_disable_sslverify']) == "true") {
					echo("checked");
				}
				echo ' id="wpbook_disable_sslverify" > Disable Facebook SSL verification</p>';
				echo '<p><strong>Stream Comment Options</strong><br/>
				<input type="checkbox" name="import_comments" value="1" ';
				if( htmlentities($wpbookAdminOptions['import_comments']) == "1") {
					echo("checked");
				}
				echo ' id="set_3" > Import comments from Facebook Walls <br/>';
				echo '<p class="wpbook_hidden wpbook_option_set_3 sub_options"><input type="checkbox" name="approve_imported_comments" value="1" ';
				if( htmlentities($wpbookAdminOptions['approve_imported_comments']) == "1") {
					echo("checked");
				}
				echo ' id="approve_imported_comments" > Automatically approve imported Wall comments</p>';

echo '<p class="wpbook_hidden wpbook_option_set_3 sub_options">For how many days should WPBook look for comments on Facebook Walls?: ';
				echo '&nbsp;<input type="text" name="num_days_import" value="';
				echo htmlentities($wpbookAdminOptions['num_days_import']) .'" size="2" /></p>';

echo '<p class="wpbook_hidden wpbook_option_set_3 sub_options">What email address should WPBook associate with imported comments? ';
				echo '&nbsp;<input type="text" name="imported_comments_email" value="';
				echo htmlentities($wpbookAdminOptions['imported_comments_email']) .'" size="40" /></p>';      
				echo '</div>'; 
			} //end hide all settings if required fields aren't filled in
			?>
			</div>  
      
			 
			<h3 class="div_wpbook_toggle" id="wpbook_app">Application View Options<span class="div_wpbook_toggle_icon expand">+</span></h3>
			<div class="div_wpbook" id="div_wpbook_app">
			<?php 
			if(empty($wpbookAdminOptions['fb_app_url']) || empty($wpbookAdminOptions['fb_secret']) || empty($wpbookAdminOptions['fb_api_key'])) {  
				echo '<p><strong>Once your Facebook application is established by filling out the required information, return to customize your application view.</strong></p>';
			} else {
				echo '<p>These settings all impact what the users of your application see inside of Facebook. In your case what they see by visiting <a href="'. $wpbookAdminOptions['proto'] .'://apps.facebook.com/' . htmlentities($wpbookAdminOptions['fb_app_url']) .'">'. $wpbookAdminOptions['proto'] .'://apps.facebook.com/' . htmlentities($wpbookAdminOptions['fb_app_url']).'</a> </p>';
			/* Now let's handle commenting - only show require_email if comments on */
			echo'<h4> Commenting Options:</strong></h4>';
			echo '<p><input type="checkbox" name="allow_comments" value="true" ';
			if( htmlentities($wpbookAdminOptions['allow_comments']) == "true") {
				echo("checked");
			}
			echo ' id="set_4" > Allow comments inside Facebook </p>';
			echo '<div class="wpbook_hidden wpbook_option_set_4 sub_options"><input type="checkbox" name="require_email" value = "true"';
			if( htmlentities($wpbookAdminOptions['require_email']) == "true"){ 
				echo("checked");
			}
			echo '> Require Comment Authors E-mail Address';
			//gravatar options
			echo '<br/><input type="checkbox" name="use_gravatar" value="true" ';
			if( htmlentities($wpbookAdminOptions['use_gravatar']) == "true") {
				echo("checked");
			}
			echo ' id="set_5" > Show Gravatar Images';
			//gravatar rating
			echo '<p class="wpbook_hidden wpbook_option_set_5 sub_child_options"> Gravatar Rating: ';
			$gravatar_ratings = array('G','PG','R','X');
			foreach ( $gravatar_ratings as $gravatar_rating ) {
				echo "<input type='radio' name='gravatar_rating' value='" . attribute_escape($gravatar_rating) . "'";
				if ( htmlentities($wpbookAdminOptions['gravatar_rating']) === $gravatar_rating ) { // checked() uses "==" rather than "==="
					echo " checked='checked'";
				}
				echo ' /> ' . $gravatar_rating;
			}
			//gravatar default
			echo '<p class="wpbook_hidden wpbook_option_set_5 sub_child_options"> Gravatar Default:</p>';
			echo '<p class="wpbook_hidden wpbook_option_set_5 sub_child_options"><input type="radio" name="gravatar_default" value = "'. WP_PLUGIN_URL .'/wpbook/theme/default/gravatar_default.gif"';
			$gravatar_defaults_custom = TRUE;
			if( htmlentities($wpbookAdminOptions['gravatar_default']) == WP_PLUGIN_URL. '/wpbook/theme/default/gravatar_default.gif'){ 
				echo("checked");
				$gravatar_defaults_custom = FALSE;
			}
			echo (' ><span class="gravatar_facebook_default"> Facebook Default <img src="');
			echo (WP_PLUGIN_URL.'/wpbook/admin_includes/images/gravatar_default.gif"  width="40" height="40" /></span> ');

$gravatar_defaults = array('identicon','monsterid','wavatar');
			foreach ( $gravatar_defaults as $gravatar_default ) {
				echo "<input type='radio' name='gravatar_default' value='" . attribute_escape($gravatar_default) . "'";
				if ( htmlentities($wpbookAdminOptions['gravatar_default']) === $gravatar_default ) { // checked() uses "==" rather than "==="
					echo " checked='checked'";
					$gravatar_defaults_custom = FALSE;
				}
				echo ' /> <span class="gravatar_'.$gravatar_default .'_default">' . $gravatar_default;
				echo '   <img src="'. WP_PLUGIN_URL .'/wpbook/admin_includes/images/'. $gravatar_default .'_default.gif" width="40" height="40"> </span> ';
			}
      
			//Custom Gravatar
			echo '<input type="radio" name="gravatar_default" class="gravatar_rating_custom_radio" value="\c\u\s\t\o\m"' ;
			checked( $gravatar_defaults_custom, TRUE );
			echo '/> Custom: 
            <p class="wpbook_hidden wpbook_option_set_5 sub_child_options">  <input type="text" size="70" class="gravatar_rating_custom" name="gravatar_rating_custom"'; 
			if($gravatar_defaults_custom === TRUE){
				echo 'value= '. $wpbookAdminOptions['gravatar_default'];
			}
			echo'/></p>';
			//gravatar outside Facebook
			echo'<p class="wpbook_hidden wpbook_option_set_5 sub_child_options"> <input type="checkbox" name="wpbook_use_global_gravatar" value="true"';
			if( htmlentities($wpbookAdminOptions['wpbook_use_global_gravatar']) == "true") {
				echo("checked");
			}
			echo '> Use WPBook Gravatar Globally (this will overwrite WordPress Gravatar settings and also show Facebook avatars outside of Facebook)';
			echo' </p></div>';
			echo '<h4>Socialize Options: </h4>';
      
			// Here starts the "invite friends" section
			echo '<p> <input type="checkbox" name="invite_friends" value = "true"';
			if( htmlentities($wpbookAdminOptions['invite_friends']) == "true"){ 
				echo("checked");
			}
			echo '> Show Invite Friends Link</p><p> ';
   
			// show share option 
			echo '<div id="enable_share_options"><p><input type="checkbox" name="enable_share" value="true"';
			if( htmlentities($wpbookAdminOptions['enable_share']) == "true"){
				echo("checked");
			}
			echo ' id="enable_share"> Enable "Share This Post" (within Facebook)</p>';
  
			// show external link option 
			echo '<p><input type="checkbox" name="enable_external_link" value="true"';
			if( htmlentities($wpbookAdminOptions['enable_external_link']) == "true"){
				echo("checked");
			}
			echo ' id="enable_external_link"> Enable "view post at external site" link</p></div>';
  
			//links button position for external and share button 
			//see if share button or external link is enabled first
			echo '<p id="position_option" class="sub_options">Link(s) position for share button and external link button: ';
			//top
			echo '<input type="radio" name="links_position" value = "top"';
			if( htmlentities($wpbookAdminOptions['links_position']) == "top"){ 
				echo("checked");
			}
			echo '>Top ';
			echo '<input type="radio" name="links_position" value = "bottom"';
			if( htmlentities($wpbookAdminOptions['links_position']) == "bottom"){ 
				echo("checked");
			}
			//bottom
			echo '> Bottom </p>';
			echo'<h4> Page Options:</strong></h4>';

//start show pages option 
			echo '<p><input type="checkbox" id="set_6" name="show_pages" value="true"';
			if( htmlentities($wpbookAdminOptions['show_pages']) == "true"){
				echo("checked");
			}
			echo '> Enable pages </p>';

echo ' <div class="sub_options wpbook_hidden wpbook_option_set_6"> ';
			//show top menu of parent pages 
			echo'<p><input type="checkbox" id="show_pages_menu" name="show_pages_menu" value="true"';
			if( htmlentities($wpbookAdminOptions['show_pages_menu']) == "true"){
				echo("checked");
			}
			echo '> Display menu of parent pages at top of application </p> 
			<p><input type="checkbox" name="show_pages_list" value="true" id="set_7"';
			if( htmlentities($wpbookAdminOptions['show_pages_list']) == "true"){
				echo("checked");
			}
			echo '> Show a list of pages below content </p>';

echo '<div class="exclude_pages sub_child_options wpbook_option_set_7 wpbook_hidden"> <input type="checkbox" id="set_8" name="exclude_true" value="true"';
			if( htmlentities($wpbookAdminOptions['exclude_true']) == "true"){
				echo("checked");
			}
			echo '>';
			echo ' Exclude some pages <span class="which_pages"> </span> <div class="sub_grandchild_options wpbook_option_set_8 wpbook_hidden">';
			echo(wpbook_exclude_Page());
			echo' </div>'; //end exclude pages 
			echo' </div>'; //end bottom page list 
			echo '</div>'; //end all page options
			echo'<h4> General Options:</strong></h4>';
			//start show date in title
			echo '<p><input type="checkbox" name="show_date_title" value="true" id="set_9"';
			if( htmlentities($wpbookAdminOptions['show_date_title']) == "true"){
				echo("checked");
			}
			echo '> Include post date with title <span id="wpbook_toggle_date_template"></span>'
			.'<div id="wpbook_date_template" class="sub_grandchild_options">';
			echo '<strong> Date Format:</strong><p>'; 
			// date code copied from wp-admin/options-general.php
			$date_formats = apply_filters( 'date_formats', array(
															   __('F j, Y'),
															  'Y/m/d',
															  'm/d/Y',
															   'd/m/Y',
																) 
										);
			$custom = TRUE;
			foreach ( $date_formats as $format ) {
				echo "\t<label title='" . attribute_escape($format) . "'><input type='radio' name='timestamp_date_format' value='" . attribute_escape($format) . "'";
				if ( htmlentities($wpbookAdminOptions['timestamp_date_format']) === $format ) { // checked() uses "==" rather than "==="
					echo " checked='checked'";
					$custom = FALSE;
				}
				echo ' /> ' . date_i18n($format,time(),FALSE) . "</label><br />\n";
			}
			echo '	<label><input type="radio" name="timestamp_date_format" id="date_format_custom_radio" value="\c\u\s\t\o\m"';
			checked( $custom, TRUE );
			echo '/> ' . __('Custom:') . ' </label><input type="text" name="timestamp_date_format_custom" value="' . attribute_escape($wpbookAdminOptions['timestamp_date_format'] ) . '" class="small-text" /> ' . date_i18n($wpbookAdminOptions['timestamp_date_format'], time(),FALSE);
			echo'</p>';
			//end date code 
			//start time code, copied from wp-admin/options-general.php
			echo '<strong> Time format</strong><p>';
			$time_formats = apply_filters( 'time_formats', array(
																__('g:i a'),
																'g:i A',
																'H:i',
																) 
										);
			$custom = TRUE;
			foreach ( $time_formats as $format ) {
				echo "\t<label title='" . attribute_escape($format) . "'><input type='radio' name='timestamp_time_format' value='" . attribute_escape($format) . "'";
				if ( htmlentities($wpbookAdminOptions['timestamp_time_format'])  === $format) { // checked() uses "==" rather than "==="
					echo " checked='checked'";
					$custom = FALSE;
				}	
				echo ' /> ' . date_i18n($format,time(),FALSE) . "</label><br />\n";
			}
			echo '	<label><input type="radio" name="timestamp_time_format" id="time_format_custom_radio" value="\c\u\s\t\o\m"';
			checked( $custom, TRUE );
			echo '/> ' . __('Custom:') . ' </label><input type="text" name="timestamp_time_format_custom" value="' . attribute_escape(($wpbookAdminOptions['timestamp_time_format'] ) ) . '" class="small-text" /> ' . date_i18n(($wpbookAdminOptions['timestamp_time_format']), time(),FALSE ) . "\n";

echo "\t</p><p>" . __('<a href="http://codex.wordpress.org/Formatting_Date_and_Time" target="_blank">Documentation on date/time formatting</a>. Click "Save" to update sample output.'). "</p>\n";

echo '</div>';

//start give credit option 
			echo '<p><input type="checkbox" name="give_credit" value="true"';
			if( htmlentities($wpbookAdminOptions['give_credit']) == "true"){
				echo("checked");
			}
			echo '> Give WPBook Credit (in Facebook)</p>  '
			.'<p><input type="checkbox" id="set_10" name="show_recent_post_list" value="true"';
			if( htmlentities($wpbookAdminOptions['show_recent_post_list']) == "true"){
				echo("checked");
			}
			echo '> Show a list of recent post below content </p>'
			.'<p class="wpbook_option_set_10 wpbook_hidden sub_child_options">How many? <input type="text" size="20" name="recent_post_amount_input"'; 
			echo 'value= '. preg_replace("[0-9]","", $wpbookAdminOptions['recent_post_amount']);
			echo '  /></p> ';

echo '<p><strong>Custom Header and Footer</strong><br/> This is where you can'
			.' set custom headers and footers for your post. For example if you wanted'
			.' to show the post author at the bottom of each post here is where you would set that option.';

//enable custom footer/header
			echo '<p>Show Custom Header/Footer: <br/>';
			//disabled
			echo '<input type="radio" name="show_custom_header_footer" value = "disabled"';
			if( htmlentities($wpbookAdminOptions['show_custom_header_footer']) == "disabled"){ 
				echo("checked");
			}
			echo '>Disabled ';

//Both 
			echo '<input type="radio" name="show_custom_header_footer" value = "both"';
			if( htmlentities($wpbookAdminOptions['show_custom_header_footer']) == "both"){ 
				echo("checked");
			}
			echo '> Both ';

//header
			echo '<input type="radio" name="show_custom_header_footer" value = "header"';
			if( htmlentities($wpbookAdminOptions['show_custom_header_footer']) == "header"){ 
				echo("checked");
			}
			echo '> Header ';

//footer
			echo '<input type="radio" name="show_custom_header_footer" value = "footer"';
			if( htmlentities($wpbookAdminOptions['show_custom_header_footer']) == "footer"){ 
				echo("checked");
			}
			echo '> Footer</p> ';
			echo'<div id="header_footer_options"><p><strong>Example Usage:</strong> Written by %author% and posted to %category% on %date% at %time%.</p>'
			.'<h4 id="wpbook_toggle_headerfooter_template">Predefined Strings: </h4>'
			.'<div id="wpbook_headerfooter_template">'
			.'%author% - The Post Author<br/>  '
			.'%time% - The Post Time (in format above) <br/>'
			.'%date% - The Post Date (in format above) <br/>'
			.'%tags% - The Post\'s tags <br/>'
			.'%tag_link% - The Post\'s tags with link to archive page <br/>'
			.'%category% - The Post Category <br/> '
			.'%category_link% - The Post Category with link to archive page <br/>'
			.'%permalink% - The Post Permalink<br/>'
			.'%comments% - Link to the Post\'s Comments<br/><br/>'
			.'</div>';
			echo(' <p id="custom_header">Custom Header:<br/> <textarea rows="2" cols="100" name="custom_header">'.$wpbookAdminOptions['custom_header'].'</textarea></p>');

//custom footer
			echo(' <p id="custom_footer">Custom Footer:<br/> <textarea rows="2" cols="100" name="custom_footer">'.$wpbookAdminOptions['custom_footer'].'</textarea></p></div>');

}//end valid required settings     
			?>
			</div>

<?php 
			echo '<p><input type="submit" value="Save" class="button-primary"';
			echo ' name="wpbook_save_button" /></form></p>';
			echo'<div id="help">';
			echo '<h2>Need Help?</h2>';
			echo '<p>If you need help setting up this application first read the <a href="http://wpbook.net/docs/install" target="_blank"> install instructions</a>.';
			echo 'Support can also be found on <a href="http://wordpress.org/extend/plugins/wpbook/" target="_blank">the plugin page</a> </p><h3>Thanks for using WPBook!</h3>';
			echo'</div>';
	} else {
			echo '<div class="wrap"><p>Sorry, you are not allowed to access ';
			echo 'this page.</p></div>';
	}
}	
  
	if (!function_exists('wp_recent_posts')) {
		// this is based almost entirely on: Recent Posts
		// http://mtdewvirus.com/code/wordpress-plugins/ v. 1.07
// by Nick Momrik, http://mtdewvirus.com/
	function wp_recent_posts($count = 5, $before = '<li>', $after = '</li>',
      $hide_pass_post = true, $skip_posts = 0, $show_excerpts = false, 
      $where = '', $join = '', $groupby = '') {
		global $wpdb;
		$time_difference = get_settings('gmt_offset');
		$now = gmdate("Y-m-d H:i:s",time());
	
		$join = apply_filters('posts_join', $join);
		$where = apply_filters('posts_where', $where);
		$groupby = apply_filters('posts_groupby', $groupby);
		if (!empty($groupby)) { $groupby = ' GROUP BY '.$groupby; }
	
		$request = "SELECT ID, post_title, post_excerpt FROM $wpdb->posts "
      . "$join WHERE post_status = 'publish' AND post_type = 'post' ";
		if ($hide_pass_post) $request .= "AND post_password ='' ";
		$request .= "AND post_date_gmt < '$now' $where $groupby ORDER BY "
      . "post_date DESC LIMIT $skip_posts, $count";
		$posts = $wpdb->get_results($request);
		$output = '';
		if ($posts) {
			foreach ($posts as $post) {
				$post_title = stripslashes($post->post_title);
				$permalink = get_permalink($post->ID);
				$output .= $before . '<a href="' . $permalink . '" rel="bookmark" '
          . 'title="Permanent Link: ' 
          . $post_title .'">'
          . $post_title . '</a>';
				if($show_excerpts) {
					$post_excerpt = stripslashes($post->post_excerpt);
					$output.= '<br />' . $post_excerpt;
				}
				$output .= $after;
			}
		} else {
			$output .= $before . "None found" . $after;
		}
		echo $output;
	}
}

// todo: eliminate this function (not needed anymore?)
// this is a copy of the wp_recent_posts function
// necessary because we don't want to echo output (for profile)
function wpbook_profile_recent_posts($count = 5, $before = '<li>', $after = '</li>',
                        $hide_pass_post = true, $skip_posts = 0, $show_excerpts = false, 
                        $where = '', $join = '', $groupby = '') {
  global $wpdb;
  $my_options = wpbook_getAdminOptions();
  
  $time_difference = get_settings('gmt_offset');
  $now = gmdate("Y-m-d H:i:s",time());
  $join = apply_filters('posts_join', $join);
  $where = apply_filters('posts_where', $where);
  $groupby = apply_filters('posts_groupby', $groupby);
  if (!empty($groupby)) { $groupby = ' GROUP BY '.$groupby; }
  
  $request = "SELECT ID, post_title, post_excerpt FROM $wpdb->posts "
    . "$join WHERE post_status = 'publish' AND post_type = 'post' ";
  if ($hide_pass_post) $request .= "AND post_password ='' ";
  $request .= "AND post_date_gmt < '$now' $where $groupby ORDER BY "
    . "post_date DESC LIMIT $skip_posts, $count";
  $posts = $wpdb->get_results($request);
  $output = '';
  if ($posts) {
    foreach ($posts as $post) {
      $post_title = stripslashes($post->post_title);
      if($my_options['promote_external']) {
        if(check_facebook()) {
          $permalink = get_external_post_url(get_permalink($post->ID));  // external permalink
        } else {
          $permalink = get_permalink($post->ID);
        }
      } else {
        $permalink = get_permalink($post->ID);  // permalink is un-filtered
        $my_offset = strlen(get_option('home'));
        $app_url = $my_options['fb_app_url'];
        $my_link = $my_options['proto'] . '://apps.facebook.com/' . $app_url 
          . substr($permalink,$my_offset); 
        $permalink = $my_link;
      }
      $output .= $before . '<a href="' . $permalink . '" rel="bookmark" '
        . 'title="Permanent Link: ' 
        . $post_title .'">'
        . $post_title . '</a>';
      if($show_excerpts) {
        $post_excerpt = stripslashes($post->post_excerpt);
        $output.= '<br />' . $post_excerpt;
      }
      $output .= $after;
    }
  } else {
    $output .= $before . "None found" . $after;
  }
  return $output;
}

// this checks to see if we are in facebook
function check_facebook() {
	if (!isset($_SERVER["HTTP_USER_AGENT"])) {
		return false;
	}
	if (isset($_REQUEST['fb_sig_in_iframe']) || isset($_REQUEST['fb_force_mode'])) {  
		defined('DONOTCACHEPAGE') or define('DONOTCACHEPAGE', 'true'); 
    return true;
	}
  /* need to check for signed_request to trap new iframes */ 
  if (isset($_POST['signed_request']) || isset($_REQUEST['signed_request'])) {
    defined('DONOTCACHEPAGE') or define('DONOTCACHEPAGE', 'true'); 
      return true; 
  }
	return false;
}

//check to see if the user has a custom theme in their theme folder
function wpbook_check_custom_theme($theme) {
	global $wp_version;
  if (version_compare($wp_version, '3.1', '>=')) { // get_themes() crashes WP < 3.1
    $installed_themes= array();
    $installed_themes= get_themes();
    $wpbook_theme_check = (!empty($installed_themes[$theme])) ? TRUE : FALSE;
    return $wpbook_theme_check;
  } else { // this check works before 3.1
    if(file_exists(WP_CONTENT_DIR . '/themes/wpbook_theme/style.css')){ 
      return TRUE; 
    }
  }
  return FALSE;  // no custom theme found
}
  
// this is the function which adds to the template and stylesheet hooks
// the call to wpbook_template
if (check_facebook()) {
  add_filter('template_directory', 'wpbook_template_directory');
  add_filter('theme_root', 'wpbook_theme_root');
  add_filter('theme_root_uri', 'wpbook_theme_root_uri');
  add_filter('stylesheet', 'wpbook_stylesheet'); 
}
             
// also have to change permalinks, next/prev links , page links, and archive links
function fb_filter_postlink($postlink) {
	if (check_facebook()) {
		$my_offset = strlen(get_option('home'));
		$my_options = wpbook_getAdminOptions();
		if ( $my_options['proto'] == "https" ) {
			$my_offset++;
		}
		$app_url = $my_options['fb_app_url'];
		$my_link = $my_options['proto'] . '://apps.facebook.com/' . $app_url 
      . substr($postlink,$my_offset); 
		return $my_link;
	} else {
		return $postlink; 
	}
}

// this version to be called when we're outside facebook too  
function wpbook_always_filter_postlink($postlink) {
  $my_offset = strlen(get_option('home'));
  if ( $my_options['proto'] == "https" ) {
    $my_offset++;
  }
  $my_options = wpbook_getAdminOptions();
  $app_url = $my_options['fb_app_url'];
  $my_link = $my_options['proto'] . '://apps.facebook.com/' . $app_url 
  . substr($postlink,$my_offset); 
  return $my_link;
  }

/*
 * This function handles streaming publish to Facebook. 
 * It includes publish_to_facebook.php
 */
function wpbook_publish_to_facebook($post_ID) {
  if (!version_compare(PHP_VERSION, '5.0.0', '<')) {
    include_once(WP_PLUGIN_DIR .'/wpbook/includes/publish_to_facebook.php');
  } else {
    wp_die("Sorry, but you can't run this plugin, it requires PHP 5 or higher.");
  }
  wpbook_safe_publish_to_facebook($post_ID);
} // end of function wpbook_publish_to_facebook

add_action('draft_post', 'wpbook_store_post_options', 1, 2);
add_action('publish_post', 'wpbook_store_post_options', 1, 2);
add_action('save_post', 'wpbook_store_post_options', 1, 2);

// based on sample code here:
// http://willnorris.com/2009/06/wordpress-plugin-pet-peeve-2-direct-calls-to-plugin-files  
// thanks will  
function wpbook_parse_request($wp) {
  if (array_key_exists('wpbook', $wp->query_vars)){
    if($wp->query_vars['wpbook'] == 'comment-handler') {  // first process requests with "wpbook=comment-handler"
      // process the request - in our case this is a comment being posted
      nocache_headers();
      $comment_post_ID = (int) $_POST['comment_post_ID'];
      global $wpdb;
      $status = $wpdb->get_row("SELECT post_status, comment_status FROM "
                               . "$wpdb->posts WHERE ID = '$comment_post_ID'");
      if ( empty($status->comment_status) ) {
        do_action('comment_id_not_found', $comment_post_ID);
        exit;
      } elseif ( !comments_open($comment_post_ID) ) {
        do_action('comment_closed', $comment_post_ID);
        wp_die( __('Sorry, comments are closed for this item.') );
      } elseif ( in_array($status->post_status, array('draft', 'pending') ) ) {
        do_action('comment_on_draft', $comment_post_ID);
        exit;
      }
     
      $wpbookOptions = get_option('wpbookAdminOptions');
      if (!empty($wpbookOptions)) {
        foreach ($wpbookOptions as $key => $option)
          $wpbookAdminOptions[$key] = $option;
      }
     
      $comment_author       = trim(strip_tags($_POST['author']));
      $comment_author_email = trim($_POST['email']);
      $comment_author_url   = trim($_POST['url']);
      $comment_content      = trim($_POST['comment']);
      $comment_type = '';
       
      $wpbook_require_email = $wpbookOptions['require_email'];
     
      // need to account here for wpadminOptions version of email required
      if(($wpbook_require_email == "true") && ('' == $comment_author_email)){
        echo '<p>Sorry: comments require an email address</p>';
        wp_die( __('Error: please enter an e-mail.'));
      }
      
      if($comment_author_email != ''){
        if(!preg_match('/^[A-Z0-9._%-]+@[A-Z0-9.-]+\.(?:[A-Z]{2}|com|org|net|biz|'
                       . 'info|name|aero|biz|info|jobs|museum|name|edu)$/i', 
                       $comment_author_email)) {
        wp_die( __('Error: please enter a valid e-mail.'));
        }
      }
      
      if ( '' == $comment_content )
        wp_die( __('Error: please type a comment.') );
      
      $commentdata = compact('comment_post_ID', 'comment_author', 
                             'comment_author_email', 'comment_author_url',
                             'comment_content', 'comment_type', 'user_ID');
      
      $comment_id = wp_new_comment( $commentdata );
      
      $comment = get_comment($comment_id);
      if ( !$user->ID ) {
        setcookie('comment_author_' . COOKIEHASH, 
                  $comment->comment_author, time() + 30000000, 
                  COOKIEPATH, COOKIE_DOMAIN);
        setcookie('comment_author_email_' . COOKIEHASH,
                  $comment->comment_author_email, time() + 30000000, 
                  COOKIEPATH, COOKIE_DOMAIN);
        setcookie('comment_author_url_' . COOKIEHASH, 
                  clean_url($comment->comment_author_url), 
                  time() + 30000000, COOKIEPATH, COOKIE_DOMAIN);
      }
      
      // all done parsing, redirect to post, on comment anchor
      
      $redirect_url = get_permalink($comment_post_ID);
      $redirect_url .= '#comment-' . $comment_id;
      
      // switched to raw php header redirect as $facebook->redirect was
      // problematic and no fb session needed in this page
      header( 'Location: ' . $redirect_url );
    }
  }
}
  
function wpbook_query_vars($vars) {
    $vars[] = 'wpbook';
    return $vars;
}

//show facebook avatar as gravatar
function wpbook_get_facebook_avatar($avatar, $comment, $size="50") {
	$wpbookOptions = get_option('wpbookAdminOptions');
      if (!empty($wpbookOptions)) {
        foreach ($wpbookOptions as $key => $option)
          $wpbookAdminOptions[$key] = $option;
      }
      if($wpbookAdminOptions['use_gravatar'] =="true"){
      $author_url = get_comment_author_url();
	$email = get_comment_author_email();
	$default = $wpbookAdminOptions['gravatar_default'];
	$rating=$wpbookAdminOptions['gravatar_rating'];
	$size="50";
	if(preg_match("@^(?:http://)?(?:www\.)?facebook@i",trim($author_url))){
        $parse_author_url = (parse_url($author_url));
        $parse_author_url_q = $parse_author_url['query'];
            if(preg_match('/id[=]([0-9]*)/', $parse_author_url_q, $match)){
                $fb_id = "/".$match[1];
            } else {
              /* have to account here for multiple options
               * http://facebook.com/profile.php?id=12234
               * http://www.facebook.com/pages/PageName/1234
               * Application pages, groups?
               */
              if(strrpos($parse_author_url['path'],'pages')) {
                $fb_id_array = explode('/',$parse_author_url['path']);
                $size = count($fb_id_array);
                $fb_id = "/" . $fb_id_array[$size-1]; 
              } else {
                $fb_id = $parse_author_url['path'];
              }
            }
        $grav_url= "http://graph.facebook.com".$fb_id."/picture?type=square";
        }
        else{
            $grav_url = "http://www.gravatar.com/avatar/" .
                md5(strtolower($email))."?d=" . $default."&s=".$size."&r=".$rating;
        }
    $grav_img = "<img src='".$grav_url."'/>";
      return $grav_img; }
      return $avatar;
}

// show facebook avatar as gravatar even outside facebook
function wpbook_get_global_facebook_avatar($avatar, $comment, $size="50") {
  $wpbookOptions = get_option('wpbookAdminOptions');
  if (!empty($wpbookOptions)) {
    foreach ($wpbookOptions as $key => $option)
      $wpbookAdminOptions[$key] = $option;
  }
  if(($wpbookAdminOptions['use_gravatar'] =="true") 
		&& ($wpbookAdminOptions['wpbook_use_global_gravatar'] =="true") 
		&& (is_object($comment)) 
	){
    $author_url = get_comment_author_url();
    $email = get_comment_author_email();
    $default = $wpbookAdminOptions['gravatar_default'];
    $rating=$wpbookAdminOptions['gravatar_rating'];
    $size="50";
    $parse_author_url = (parse_url($author_url));
    if(preg_match("@^(?:http://)?(?:www\.)?facebook@i",trim($author_url))){
      $parse_author_url_q = $parse_author_url['query'];
      if(preg_match('/id[=]([0-9]*)/', $parse_author_url_q, $match)){
        $fb_id = "/".$match[1];
      }
      else { 
        /* have to account here for multiple options
         * http://facebook.com/profile.php?id=12234
         * http://www.facebook.com/pages/PageName/1234
         * Application pages, groups?
         */
        if(strrpos($parse_author_url['path'],'pages')) {
          $fb_id_array = explode('/',$parse_author_url['path']);
          $size = count($fb_id_array) -1;
          $fb_id = "/" . $fb_id_array[$size]; 
        } else {
          $fb_id = $parse_author_url['path'];
        }
      }
      $grav_url= "http://graph.facebook.com".$fb_id."/picture?type=square";
    }
    else {
      $grav_url = "http://www.gravatar.com/avatar/" . md5(strtolower($email)).
        "?d=" . $default."&s=".$size."&r=".$rating;
    }
    $grav_img = "<img src='".$grav_url."'/>";
    return $grav_img; 
  }
  return $avatar;
}
  
/**
  * Thanks Otto - http://lists.automattic.com/pipermail/wp-hackers/2009-July/026759.html
  */
function wpbook_activation_check(){
  global $wp_version;
  if (version_compare(PHP_VERSION, '5.0.0', '<')) {
    deactivate_plugins(basename(__FILE__)); // Deactivate ourself
    wp_die("Sorry, but you can't run this plugin, it requires PHP 5 or higher.");
  }
  if (version_compare($wp_version, '2.9', '<')) {
    wp_die("This plugin requires WordPress 2.6 or greater.");
  }
}
  
// thanks http://wpengineer.com/35/wordpress-plugin-deinstall-data-automatically/ 
 /**
 * Check for uninstall hook
 */
if ( function_exists('register_uninstall_hook') )
	register_uninstall_hook(__FILE__, 'wpbook_deinstall');

/**
 * Delete options in database
 */
function wpbook_deinstall() {
	delete_option('wpbookAdminOptions');
	delete_option('wpbook_user_access_token');
	delete_option('wpbook_page_access_token');
}  
  
  
  
  
add_filter('query_vars', 'wpbook_query_vars');	
add_filter('post_link','fb_filter_postlink',1,1);
add_filter('page_link','fb_filter_postlink',1,1); 
add_filter('get_pagenum_link','fb_filter_postlink',1,1);

//add gravatar/facebook avatar support outside facebook
//filter for inside facebook is in the theme/config_wp_settings.php
add_filter('get_avatar','wpbook_get_global_facebook_avatar', 1, 3 );

/* you can't actually filter the tag_link and category_links this way
 * because if you do, wordpress redirects to /app_url/tag/yourtag whenever
 * you try to access /tag/yourtag inside FB
 *  add_filter('tag_link','fb_filter_postlink',1,1); 
 *  add_filter('category_link','fb_filter_postlink',1,1); 
 */
add_action('admin_menu', 'wpbook_options_page');
add_action('wp', 'wpbook_parse_request');
add_action('admin_menu', 'wpbook_add_meta_box');
  
	
// these capture new posts, not edits of previous posts	
add_action('future_to_publish','wpbook_publish_to_facebook');	
add_action('new_to_publish','wpbook_publish_to_facebook');
add_action('draft_to_publish','wpbook_publish_to_facebook');  
add_action('pending_to_publish','wpbook_publish_to_facebook');
// support xml-rpc clients
add_action('auto-draft_to_publish','wpbook_publish_to_facebook');
  
// cron job task  
add_action('wpbook_cron_job', 'wpbook_import_comments');

register_activation_hook(__FILE__, 'wpbook_activate');
register_deactivation_hook(__FILE__, 'wpbook_deactivate');