<?php
require_once(dirname(__FILE__) . '/admin-ui.php');
require_once(dirname(__FILE__) . '/magpiemocklink.class.php');
require_once(dirname(__FILE__) . '/feedfinder.class.php');
require_once(dirname(__FILE__) . '/updatedpostscontrol.class.php');

class FeedWordPressFeedsPage extends FeedWordPressAdminPage {
	var $HTTPStatusMessages = array (
		200 => 'OK. FeedWordPress had no problems retrieving the content at this URL but the content does not seem to be a feed, and does not seem to include links to any feeds.',
		201 => 'Created',
		202 => 'Accepted',
		203 => 'Non-Authoritative information',
		204 => 'No Content',
		205 => 'Reset Content',
		206 => 'Partial Content',
		300 => 'Multiple Choices',
		301 => 'Moved Permanently',
		302 => 'Found',
		303 => 'See Other',
		304 => 'Not Modified',
		305 => 'Use Proxy',
		307 => 'Temporary Redirect',
		400 => 'Bad Request',
		401 => 'Unauthorized. This URL probably needs a username and password for you to access it.',
		402 => 'Payment Required',
		403 => 'Forbidden. The URL is not made available for the machine that FeedWordPress is running on.',
		404 => 'Not Found. There is nothing at this URL. Have you checked the address for typos?',
		405 => 'Method Not Allowed',
		406 => 'Not Acceptable',
		407 => 'Proxy Authentication Required',
		408 => 'Request Timeout',
		409 => 'Conflict',
		410 => 'Gone. This URL is no longer available on this server and no forwarding address is known.',
		411 => 'Length Required',
		412 => 'Precondition Failed',
		413 => 'Request Entity Too Large',
		414 => 'Request URI Too Long',
		415 => 'Unsupported Media Type',
		416 => 'Requested Range Not Satisfiable',
		417 => 'Expectation Failed',
		500 => 'Internal Server Error. Something unexpected went wrong with the configuration of the server that hosts this URL. You might try again later to see if this issue has been resolved.',
		501 => 'Not Implemented',
		502 => 'Bad Gateway',
		503 => 'Service Unavailable. The server is currently unable to handle the request due to a temporary overloading or maintenance of the server that hosts this URL. This is probably a temporary condition and you should try again later to see if the issue has been resolved.',
		504 => 'Gateway Timeout',
		505 => 'HTTP Version Not Supported',
	);
	var $updatedPosts = NULL;

	var $special_settings = array ( /* Regular expression syntax is OK here */
		'cats',
		'cat_split',
		'fetch timeout',
		'freeze updates',
		'hardcode name',
		'hardcode url',
		'hardcode description',
		'hardcode categories', /* Deprecated */
		'comment status',
		'terms',
		'map authors',
		'munge permalink',
		'ping status',
		'post status',
		'postmeta',
		'query parameters',
		'resolve relative',
		'syndicated post type',
		'tags',
		'unfamiliar author',
		'unfamliar categories', /* Deprecated */
		'unfamiliar category',
		'unfamiliar post_tag',
		'add/.*',
		'update/.*',
		'feed/.*',
		'link/.*',
		'match/.*',
	);

	/**
	 * Constructs the Feeds page object
	 *
	 * @param mixed $link An object of class {@link SyndicatedLink} if created for one feed's settings, NULL if created for global default settings
	 */
	function FeedWordPressFeedsPage ($link = -1) {
		if (is_numeric($link) and -1 == $link) :
			$link = FeedWordPressAdminPage::submitted_link();
		endif;

		FeedWordPressAdminPage::FeedWordPressAdminPage('feedwordpressfeeds', $link);

		$this->dispatch = 'feedwordpress_admin_page_feeds';
		$this->pagenames = array(
			'default' => 'Feeds',
			'settings-update' => 'Syndicated feed',
			'open-sheet' => 'Feed and Update',
		);
		$this->filename = __FILE__;
		$this->updatedPosts = new UpdatedPostsControl($this);
		
		$this->special_settings = apply_filters('syndicated_feed_special_settings', $this->special_settings, $this);
	} /* FeedWordPressFeedsPage constructor */

	function display () {
		global $fwp_post;
		global $post_source;

		$this->boxes_by_methods = array(
			'feed_information_box' => __('Feed Information'),
			'global_feeds_box' => __('Update Scheduling'),
			'updated_posts_box' => __('Updated Posts'),
			'custom_settings_box' => __('Custom Feed Settings (for use in templates)'),
			'fetch_settings_box' => __('Settings for Fetching Feeds (Advanced)'),
		);
		if ($this->for_default_settings()) :
			unset($this->boxes_by_methods['custom_settings_box']);
		endif;	
			
		// Allow overriding of normal source for FeedFinder, which may
		// be called from multiple points.
		if (isset($post_source) and !is_null($post_source)) :
			$source = $post_source;
		else :
			$source = $this->dispatch;
		endif;

		if (isset($_REQUEST['feedfinder'])
		or (isset($_REQUEST['action']) and $_REQUEST['action']=='feedfinder')
		or (isset($_REQUEST['action']) and $_REQUEST['action']==FWP_SYNDICATE_NEW)) :
			// If this is a POST, validate source and user credentials
			FeedWordPressCompatibility::validate_http_request(/*action=*/ $source, /*capability=*/ 'manage_links');

			return $this->display_feedfinder(); // re-route to Feed Finder page
		endif;

		parent::display();
		return false; // Don't continue
	} /* FeedWordPressFeedsPage::display() */

	function ajax_interface_js () {
		FeedWordPressAdminPage::ajax_interface_js();
		?>

		jQuery(document).ready( function () {
			contextual_appearance('automatic-updates-selector', 'cron-job-explanation', null, 'no');
			contextual_appearance('time-limit', 'time-limit-box', null, 'yes');
			contextual_appearance('use-default-update-window-no', 'update-scheduling-note', null, null, 'block', true);
			jQuery('#use-default-update-window-yes, #use-default-update-window-no').click( function () {
				contextual_appearance('use-default-update-window-no', 'update-scheduling-note', null, null, 'block', true);
			} );

			var els = ['name', 'description', 'url'];
			for (var i = 0; i < els.length; i++) {
				contextual_appearance(
					/*item=*/ 'basics-hardcode-'+els[i],
					/*appear=*/ 'basics-'+els[i]+'-view',
					/*disappear=*/ 'basics-'+els[i]+'-edit',
					/*value=*/ 'no',
					/*visibleStyle=*/ 'block',
					/*checkbox=*/ true
				);
			} /* for */
		} );

		<?php
	}
	
	/*static*/ function updated_posts_box ($page, $box = NULL) {
		?>
		<table class="edit-form">
		<?php $page->updatedPosts->display(); ?>
		</table>
		<?php
	} /* FeedWordPressFeedsPage::updated_posts_box() */

	/*static*/ function global_feeds_box ($page, $box = NULL) {
		$automatic_updates = get_option('feedwordpress_automatic_updates');
		$update_time_limit = (int) get_option('feedwordpress_update_time_limit');

		// Hey, ho, let's go...
		?>

		<table class="edit-form">
		<?php if ($page->for_default_settings()) : ?>

		<tr>
		<th scope="row">Updates:</th>
		<td><select id="automatic-updates-selector" name="automatic_updates" size="1" onchange="contextual_appearance('automatic-updates-selector', 'cron-job-explanation', null, 'no');">
		<option value="shutdown"<?php echo ($automatic_updates=='shutdown')?' selected="selected"':''; ?>>automatically check for updates after pages load</option>
		<option value="init"<?php echo ($automatic_updates=='init')?' selected="selected"':''; ?>>automatically check for updates before pages load</option>
		<option value="no"<?php echo (!$automatic_updates)?' selected="selected"':''; ?>>cron job or manual updates</option>
		</select>
		<div id="cron-job-explanation" class="setting-description">
		<p>If you want to use a cron job,
		you can perform scheduled updates by sending regularly-scheduled
		requests to <a href="<?php bloginfo('home'); ?>?update_feedwordpress=1"><code><?php bloginfo('url') ?>?update_feedwordpress=1</code></a>
		For example, inserting the following line in your crontab:</p>
		<pre style="font-size: 0.80em"><code>*/10 * * * * /usr/bin/curl --silent <?php bloginfo('url'); ?>?update_feedwordpress=1</code></pre>
		<p class="setting-description">will check in every 10 minutes
		and check for updates on any feeds that are ready to be polled for updates.</p>
		</div>
		</td>
		</tr>
		
		<?php else : /* Feed-specific settings */ ?>

		<tr>
		<th scope="row"><?php _e('Last update') ?>:</th>
		<td><?php
			if (isset($page->link->settings['update/last'])) :
				echo fwp_time_elapsed($page->link->settings['update/last'])." ";
			else :
				echo " none yet";
			endif;
		?></td></tr>

		<tr><th><?php _e('Next update') ?>:</th>
		<td><?php
			$holdem = (isset($page->link->settings['update/hold']) ? $page->link->settings['update/hold'] : 'scheduled');
		?>
		<select name="update_schedule">
		<option value="scheduled"<?php echo ($holdem=='scheduled')?' selected="selected"':''; ?>>update on schedule <?php
			echo " (";
			if (isset($page->link->settings['update/ttl']) and is_numeric($page->link->settings['update/ttl'])) :
				if (isset($page->link->settings['update/timed']) and $page->link->settings['update/timed']=='automatically') :
					echo 'next: ';
					$next = $page->link->settings['update/last'] + ((int) $page->link->settings['update/ttl'] * 60);
					if (strftime('%x', time()) != strftime('%x', $next)) :
						echo strftime('%x', $next)." ";
					endif;
					echo strftime('%X', $page->link->settings['update/last']+((int) $page->link->settings['update/ttl']*60));
				else :
					echo "every ".$page->link->settings['update/ttl']." minute".(($page->link->settings['update/ttl']!=1)?"s":"");
				endif;
			else:
				echo "next scheduled update";
			endif;
			echo ")";
		?></option>
		<option value="next"<?php echo ($holdem=='next')?' selected="selected"':''; ?>>update ASAP</option>
		<option value="ping"<?php echo ($holdem=='ping')?' selected="selected"':''; ?>>update only when pinged</option>
		</select></td></tr>
		
		<?php endif; ?>
		
		<tr>
		<th scope="row"><?php print __('Update scheduling:') ?></th>
		<td><p style="margin-top:0px">How long should FeedWordPress wait between updates before it considers this feed ready to be polled for updates again?</p>
		<?php
			
			$this->setting_radio_control(
				'update/window', 'update_window',
				array(&$this, 'update_window_edit_box'),
				array(
					'global-setting-default' => DEFAULT_UPDATE_PERIOD,
					'default-input-name' => 'use_default_update_window',
					'default-input-id' => 'use-default-update-window-yes',
					'default-input-id-no' => 'use-default-update-window-no',
					'labels' => array(&$this, 'update_window_currently'),
				)
			);
			?></td>
		</tr>

		<?php if ($this->for_default_settings()) : ?>
		
		<tr>
		<th scope="row"><?php print __('Time limit on updates'); ?>:</th>
		<td><select id="time-limit" name="update_time_limit" size="1" onchange="contextual_appearance('time-limit', 'time-limit-box', null, 'yes');">
		<option value="no"<?php echo ($update_time_limit>0)?'':' selected="selected"'; ?>>no time limit on updates</option>
		<option value="yes"<?php echo ($update_time_limit>0)?' selected="selected"':''; ?>>limit updates to no more than...</option>
		</select>
		<span id="time-limit-box"><label><input type="text" name="time_limit_seconds" value="<?php print $update_time_limit; ?>" size="5" /> seconds</label></span>
		</tr>

		<?php endif; ?>
		
		</table>
		
		<?php
	} /* FeedWordPressFeedsPage::global_feeds_box() */

	function update_window_edit_box ($updateWindow, $defaulted, $params) {
			if (!is_numeric($updateWindow)) :
				$updateWindow = DEFAULT_UPDATE_PERIOD;
			endif;
		?>
		<p>Wait <input type="text" name="update_window" value="<?php print $updateWindow; ?>" size="4" /> minutes between polling.</p>
		<div class="setting-description" id="update-scheduling-note">
		<p<?php if ($updateWindow<50) : ?> style="color: white; background-color: #703030; padding: 1.0em;"<?php endif; ?>><strong>Recommendation.</strong> Unless you are positive that you have the webmaster's permission, you generally should not set FeedWordPress to poll feeds more frequently than once every 60 minutes. Many webmasters consider more frequent automated polling to be abusive, and may complain to your web host, or ban your IP address, as retaliation for hammering their servers too hard.</p>
		<p><strong>Note.</strong> This is a default setting that FeedWordPress uses to schedule updates when the feed does not provide any scheduling requests. If this feed does provide update scheduling information (through elements such as <code>&lt;rss:ttl&gt;</code> or <code>&lt;sy:updateFrequency&gt;</code>), FeedWordPress will respect the feed's request.</p>
		</div>
		<?php
	} /* FeedWordPressFeedsPage::update_window_edit_box () */
	
	function update_window_currently ($updateWindow, $defaulted, $params) {
		$updateWindow = (int) $updateWindow;
		if (1==$updateWindow) :
			$caption = 'wait %d minute between polling';
		else :
			$caption = 'wait %d minutes between polling';
		endif;
		return sprintf(__($caption), $updateWindow);
	} /* FeedWordPressFeedsPage::update_window_currently () */
	
	function fetch_timeout_setting ($setting, $defaulted, $params) {
		$timeout = intval($this->setting('fetch timeout', FEEDWORDPRESS_FETCH_TIMEOUT_DEFAULT));

		if ($this->for_feed_settings()) :
			$article = 'this';
		else :
			$article = 'a';
		endif;
		?>
		<p>Wait no more than
		than <input name="fetch_timeout" type="number" min="0" size="3" value="<?php print $timeout; ?>" />
		second(s) when trying to fetch <?php print $article; ?> feed to check for updates.</p>
		<p>If <?php print $article; ?> source's web server does not respond before time runs
		out, FeedWordPress will skip over the source and try again during
		the next update cycle.</p>
		<?php
	}
	function fetch_timeout_setting_value ($setting, $defaulted, $params) {
		print number_format(intval($setting)) . " " . (($setting==1) ? "second" : "seconds");
	}
	
	function fetch_settings_box ($page, $box = NULL) {
		$this->setting_radio_control(
			'fetch timeout', 'fetch_timeout',
			array(&$this, 'fetch_timeout_setting'),
			array(
				'global-setting-default' => FEEDWORDPRESS_FETCH_TIMEOUT_DEFAULT,
				'input-name' => 'fetch_timeout',
				'default-input-name' => 'fetch_timeout_default',
				'labels' => array(&$this, 'fetch_timeout_setting_value'),
			)
		);
	} /* FeedWordPressFeedsPage::fetch_settings_box () */
	
	function feed_information_box ($page, $box = NULL) {
		global $wpdb;
		$link_rss_params = maybe_unserialize($page->setting('query parameters', ''));
		if (!is_array($link_rss_params)) :
			$link_rss_params = array();
		endif;
		
		if ($page->for_feed_settings()) :
			$info['name'] = esc_html($page->link->link->link_name);
			$info['description'] = esc_html($page->link->link->link_description);
			$info['url'] = esc_html($page->link->link->link_url);
			$rss_url = $page->link->link->link_rss;

			$hardcode['name'] = $page->link->hardcode('name');
			$hardcode['description'] = $page->link->hardcode('description');
			$hardcode['url'] = $page->link->hardcode('url');
		else :
			$cat_id = FeedWordPress::link_category_id();

			$params = array();
			if (FeedWordPressCompatibility::test_version(FWP_SCHEMA_USES_ARGS_TAXONOMY)) :
				$params['taxonomy'] = 'link_category';
			else :
				$params['type'] = 'link';
			endif;
			$params['hide_empty'] = false;
			$results = get_categories($params);
				
			// Guarantee that the Contributors category will be in the drop-down chooser, even if it is empty.
			$found_link_category_id = false;
			foreach ($results as $row) :
				// Normalize case
				if (!isset($row->cat_id)) : $row->cat_id = $row->cat_ID; endif;

				if ($row->cat_id == $cat_id) :	$found_link_category_id = true;	endif;
			endforeach;
			
			if (!$found_link_category_id) :
				$results[] = get_category($cat_id);
			endif;
	
			$info = array();
			$rss_url = null;

			$hardcode['name'] = get_option('feedwordpress_hardcode_name');
			$hardcode['description'] = get_option('feedwordpress_hardcode_description');
			$hardcode['url'] = get_option('feedwordpress_hardcode_url');
		endif;

		// Hey ho, let's go
		?>
		<table class="edit-form">

		<?php if ($page->for_feed_settings()) : ?>

		<tr>
		<th scope="row"><?php _e('Feed URL:') ?></th>
		<td><a href="<?php echo esc_html($rss_url); ?>"><?php echo esc_html($rss_url); ?></a>
		(<a href="<?php echo FEEDVALIDATOR_URI; ?>?url=<?php echo urlencode($rss_url); ?>"
		title="Check feed &lt;<?php echo esc_html($rss_url); ?>&gt; for validity">validate</a>)
		<input type="submit" name="feedfinder" value="switch &rarr;" style="font-size:smaller" />
		
		<table id="link-rss-params">
		<tbody>
		<?php
		$link_rss_params['new'] = array('', '');
		$i = 0;
		foreach ($link_rss_params as $index => $pair) :
		?>
		<tr class="link-rss-params-row" id="link-rss-params-<?php print $index; ?>">
		<td><label>Parameter: <input type="text" class="link_params_key"
		name="link_rss_params_key[<?php print $index; ?>]" value="<?php print esc_html($pair[0]); ?>"
		size="5" style="width: 5em" placeholder="name" /></label></td>
		<td class="link-rss-params-value-cell"><label class="link_params_value_label">= <input type="text" class="link_params_value"
		name="link_rss_params_value[<?php print $index; ?>]" value="<?php print esc_html($pair[1]); ?>"
		size="8" placeholder="value" /></label></td>
		</tr>
		<?php
			$i++;
		endforeach;
		?>
		</tbody>
		</table>
		
		<div><input type="hidden" id="link-rss-params-num" name="link_rss_params_num" value="<?php print $i; ?>" /></div>
		
		<script type="text/javascript">
		function linkParamsRowRemove (element) {
			jQuery(element).closest('tr').fadeOut('slow', function () {
				jQuery(this).remove();
			} );
		}

		jQuery('<td><a href="#" class="add-remove link-rss-params-remove"><span class="x">(X)</span> Remove</a></td>').insertAfter('.link-rss-params-value-cell');

		jQuery('#link-rss-params-new').hide();
		jQuery('<a  class="add-remove" id="link-rss-params-add" href="#">+ Add a query parameter</a>').insertAfter('#link-rss-params');
		jQuery('#link-rss-params-add').click( function () {
			var next = jQuery('#link-rss-params-num').val();
			var newRow = jQuery('#link-rss-params-new').clone().attr('id', 'link-rss-params-'+next);
			newRow.find('.link_params_key').attr('name', 'link_rss_params_key['+next+']');
			newRow.find('.link_params_value').attr('name', 'link_rss_params_value['+next+']');
			
			newRow.find('.link-rss-params-remove').click( function () {
				linkParamsRowRemove(this);
				return false;
			} );

			newRow.appendTo('#link-rss-params');
			newRow.show();
			
			// Update counter for next row.
			next++;
			jQuery('#link-rss-params-num').val(next);

			return false;
		} );
		jQuery('.link-rss-params-remove').click( function () {
			linkParamsRowRemove(this);
			return false;
		} );
		</script>
		</td>
		</tr>

		<?php
		$rows = array(
			"name" => __('Link Name'),
			"description" => __('Short Description'),
			"url" => __('Homepage'),
		);
		foreach ($rows as $what => $label) :
			?>
			<tr>
			<th scope="row"><?php print $label ?></th>
			<td>
			<div id="basics-<?php print $what; ?>-edit"><input type="text" name="link<?php print $what; ?>"
			value="<?php echo $info[$what]; ?>" style="width: 95%" /></div>
			<div id="basics-<?php print $what; ?>-view">
			<?php if ($what=='url') : ?><a href="<?php print $info[$what]; ?>"><?php else : ?><strong><?php endif; ?>
			<?php print (strlen(trim($info[$what])) > 0) ? $info[$what] : '(none provided)'; ?>
			<?php if ($what=='url') : ?></a><?php else : ?></strong><?php endif; ?></div>
	
			<div>
			<label><input id="basics-hardcode-<?php print $what; ?>"
				type="radio" name="hardcode_<?php print $what; ?>" value="no"
				<?php echo (($hardcode[$what]=='yes')?'':' checked="checked"');?>
				onchange="contextual_appearance('basics-hardcode-<?php print $what; ?>', 'basics-<?php print $what; ?>-view', 'basics-<?php print $what; ?>-edit', 'no', 'block', /*checkbox=*/ true)"
			/> Update automatically from feed</label>
			<label><input type="radio" name="hardcode_<?php print $what; ?>" value="yes"
			<?php echo (($hardcode[$what]!='yes')?'':' checked="checked"');?>
			onchange="contextual_appearance('basics-hardcode-<?php print $what; ?>', 'basics-<?php print $what; ?>-view', 'basics-<?php print $what; ?>-edit', 'no', 'block', /*checkbox=*/ true)"
			/> Edit manually</label>
			</div>
			</td>
			</tr>
			<?php
		endforeach;
		?>

		<?php else : ?>

		<tr>
		<th scope="row">Syndicated Link category:</th>
		<td><p><select name="syndication_category" size="1">
		<?php
			foreach ($results as $row) :
				// Normalize case
				if (!isset($row->cat_id)) : $row->cat_id = $row->cat_ID; endif;

				echo "\n\t<option value=\"$row->cat_id\"";
				if ($row->cat_id == $cat_id) :
					echo " selected='selected'";
				endif;
				echo ">$row->cat_id: ".esc_html($row->cat_name);
				echo "</option>\n";
			endforeach;
		?></select></p>
		<p class="setting-description">FeedWordPress will syndicate the
		links placed under this link category.</p>
		</td>
		</tr>
				
		<tr>
		<th scope="row">Link Names:</th>
		<td><label><input type="checkbox" name="hardcode_name" value="no"<?php echo (($hardcode['name']=='yes')?'':' checked="checked"');?>/> Update contributor titles automatically when the feed title changes</label></td>
		</tr>
		
		<tr>
		<th scope="row">Short descriptions:</th>
		<td><label><input type="checkbox" name="hardcode_description" value="no"<?php echo (($hardcode['description']=='yes')?'':' checked="checked"');?>/> Update contributor descriptions automatically when the feed tagline changes</label></td>
		</tr>
		
		<tr>
		<th scope="row">Homepages:</th>
		<td><label><input type="checkbox" name="hardcode_url" value="no"<?php echo (($hardcode['url']=='yes')?'':' checked="checked"');?>/> Update contributor homepages automatically when the feed link changes</label></td>
		</tr>

		<?php endif; ?>

		</table>
		<?php
	} /* FeedWordPressFeedsPage::feed_information_box() */

	function custom_settings_box ($page, $box = NULL) {
		?>
	<p class="setting-description">These custom settings are special fields for the <strong>feed</strong> you are
	syndicating, to be retrieved in templates using the <code>get_feed_meta()</code> function. They do not create
	custom fields on syndicated <strong>posts</strong>. If you want to create custom fields that are applied to each
	individual post from this feed, set up the settings in <a href="admin.php?page=<?php print $GLOBALS['fwp_path'] ?>/posts-page.php&amp;link_id=<?php print $page->link->id; ?>">Syndicated Posts</a>.</p>
	
	<div id="postcustomstuff">
	<table id="meta-list" cellpadding="3">
		<tr>
		<th>Key</th>
		<th>Value</th>
		<th>Action</th>
		</tr>
	
	<?php
		$i = 0;
		foreach ($page->link->settings as $key => $value) :
			if (!preg_match("\007^((".implode(')|(', $page->special_settings)."))$\007i", $key)) :
	?>
				<tr style="vertical-align:top">
				<th width="30%" scope="row"><input type="hidden" name="notes[<?php echo $i; ?>][key0]" value="<?php echo esc_html($key); ?>" />
				<input id="notes-<?php echo $i; ?>-key" name="notes[<?php echo $i; ?>][key1]" value="<?php echo esc_html($key); ?>" /></th>
				<td width="60%"><textarea rows="2" cols="40" id="notes-<?php echo $i; ?>-value" name="notes[<?php echo $i; ?>][value]"><?php echo esc_html($value); ?></textarea></td>
				<td width="10%"><select name="notes[<?php echo $i; ?>][action]">
				<option value="update">save changes</option>
				<option value="delete">delete this setting</option>
				</select></td>
				</tr>
	<?php
				$i++;
			endif;
		endforeach;
	?>
		<tr>
		<th scope="row"><input type="text" size="10" name="notes[<?php echo $i; ?>][key1]" value="" /></th>
		<td><textarea name="notes[<?php echo $i; ?>][value]" rows="2" cols="40"></textarea></td>
		<td><em>add new setting...</em><input type="hidden" name="notes[<?php echo $i; ?>][action]" value="update" /></td>
		</tr>
	</table>
	</div> <!-- id="postcustomstuff" -->
		<?php
	}

	function display_feedfinder () {
		global $wpdb;
	
		$lookup = (isset($_REQUEST['lookup']) ? $_REQUEST['lookup'] : NULL);

		$feeds = array(); $feedSwitch = false; $current = null;
		if ($this->for_feed_settings()) : // Existing feed?
			$feedSwitch = true;
			if (is_null($lookup)) :
				// Switch Feed without a specific feed yet suggested
				// Go to the human-readable homepage to look for
				// auto-detection links
				$lookup = $this->link->link->link_url;
				
				// Guarantee that you at least have the option to
				// stick with what works.
				$current = $this->link->link->link_rss;
				$feeds[] = $current;
			endif;
			$name = esc_html($this->link->link->link_name);
		else: // Or a new subscription to add?
			$name = "Subscribe to <code>".esc_html(feedwordpress_display_url($lookup))."</code>";
		endif;
		?>
		<div class="wrap" id="feed-finder">
		<h2>Feed Finder: <?php echo $name; ?></h2>

		<?php
		if ($feedSwitch) :
			$this->display_alt_feed_box($lookup);
		endif;

		$finder = array();
		if (!is_null($current)) :
			$finder[$current] = new FeedFinder($current);
		endif;
		$finder[$lookup] = new FeedFinder($lookup);
		
		foreach ($finder as $url => $ff) :
			$feeds = array_merge($feeds, $ff->find());
		endforeach;
		
		$feeds = array_values( // Renumber from 0..(N-1)
				array_unique( // Eliminate duplicates
					$feeds
				)
		);

		if (count($feeds) > 0):
			if ($feedSwitch) :
				?>
				<h3>Feeds Found</h3>
				<?php
			endif;

			if (count($feeds) > 1) :
				$option_template = 'Option %d: ';
				$form_class = ' class="multi"';
				?>
				<p><strong>This web page provides at least <?php print count($feeds); ?> different feeds.</strong> These feeds may provide the same information
				in different formats, or may track different items. (You can check the Feed Information and the
				Sample Item for each feed to get an idea of what the feed provides.) Please select the feed that you'd like to subscribe to.</p>
				<?php
			else :
				$option_template = '';
				$form_class = '';
			endif;

			foreach ($feeds as $key => $f):
				$pie = FeedWordPress::fetch($f);
				$rss = (is_wp_error($pie) ? $pie : new MagpieFromSimplePie($pie));

				if ($rss and !is_wp_error($rss)):
					$feed_link = (isset($rss->channel['link'])?$rss->channel['link']:'');
					$feed_title = (isset($rss->channel['title'])?$rss->channel['title']:$feed_link);
					$feed_type = ($rss->feed_type ? $rss->feed_type : 'Unknown');
					$feed_version_template = '%.1f';
					$feed_version = $rss->feed_version;
				else :
					// Give us some sucky defaults
					$feed_title = feedwordpress_display_url($lookup);
					$feed_link = $lookup;
					$feed_type = 'Unknown';
					$feed_version_template = '';
					$feed_version = '';
				endif;
				?>
					<form<?php print $form_class; ?> action="admin.php?page=<?php print $GLOBALS['fwp_path'] ?>/syndication.php" method="post">
					<div class="inside"><?php FeedWordPressCompatibility::stamp_nonce('feedwordpress_switchfeed'); ?>

					<?php
					$classes = array('feed-found'); $currentFeed = '';
					if (!is_null($current) and $current==$f) :
						$classes[] = 'current';
						$currentFeed = ' (currently subscribed)';
					endif;
					if ($key%2) :
						$classes[] = 'alt';
					endif;
					?>
					<fieldset class="<?php print implode(" ", $classes); ?>">
					<legend><?php printf($option_template, ($key+1)); print $feed_type." "; printf($feed_version_template, $feed_version); ?> feed<?php print $currentFeed; ?></legend>

					<?php
					$this->stamp_link_id();

					// No feed specified = add new feed; we
					// need to pass along a starting title
					// and homepage URL for the new Link.
					if (!$this->for_feed_settings()):
						?>
						<input type="hidden" name="feed_title" value="<?php echo esc_html($feed_title); ?>" />
						<input type="hidden" name="feed_link" value="<?php echo esc_html($feed_link); ?>" />
						<?php
					endif;
					?>

					<input type="hidden" name="feed" value="<?php echo esc_html($f); ?>" />
					<input type="hidden" name="action" value="switchfeed" />

					<div>
					<div class="feed-sample">
					<?php
					$link = NULL;
					$post = NULL;
					if (!is_wp_error($rss) and count($rss->items) > 0):
						// Prepare to display Sample Item
						$link = new MagpieMockLink(array('simplepie' => $pie, 'magpie' => $rss), $f);
						$post = new SyndicatedPost(array('simplepie' => $rss->originals[0], 'magpie' => $rss->items[0]), $link);
						?>
						<h3>Sample Item</h3>
						<ul>
						<li><strong>Title:</strong> <a href="<?php echo $post->post['meta']['syndication_permalink']; ?>"><?php echo $post->post['post_title']; ?></a></li>
						<li><strong>Date:</strong> <?php print date('d-M-y g:i:s a', $post->published()); ?></li>
						</ul>
						<div class="entry">
						<?php print $post->post['post_content']; ?>
						</div>
						<?php
						do_action('feedwordpress_feed_finder_sample_item', $f, $post, $link);
					else:
						if (is_wp_error($rss)) :
							print '<div class="feed-problem">';
							print "<h3>Problem:</h3>\n";
							print "<p>FeedWordPress encountered the following error
							when trying to retrieve this feed:</p>";
							print '<p style="margin: 1.0em 3.0em"><code>'.$rss->get_error_message().'</code></p>';
							print "<p>If you think this is a temporary problem, you can still force FeedWordPress to add the subscription. FeedWordPress will not be able to find any syndicated posts until this problem is resolved.</p>";
							print "</div>";
						endif;
						?>
						<h3>No Items</h3>
						<p>FeedWordPress found no posts on this feed.</p>
						<?php
					endif;
					?>
					</div>
	
					<div>
					<h3>Feed Information</h3>
					<ul>
					<li><strong>Homepage:</strong> <a href="<?php echo $feed_link; ?>"><?php echo is_null($feed_title)?'<em>Unknown</em>':$feed_title; ?></a></li>
					<li><strong>Feed URL:</strong> <a title="<?php echo esc_html($f); ?>" href="<?php echo esc_html($f); ?>"><?php echo esc_html(feedwordpress_display_url($f, 40, 10)); ?></a> (<a title="Check feed &lt;<?php echo esc_html($f); ?>&gt; for validity" href="http://feedvalidator.org/check.cgi?url=<?php echo urlencode($f); ?>">validate</a>)</li>
					<li><strong>Encoding:</strong> <?php echo isset($rss->encoding)?esc_html($rss->encoding):"<em>Unknown</em>"; ?></li>
					<li><strong>Description:</strong> <?php echo isset($rss->channel['description'])?esc_html($rss->channel['description']):"<em>Unknown</em>"; ?></li>
					</ul>
					<?php do_action('feedwordpress_feedfinder_form', $f, $post, $link, $this->for_feed_settings()); ?>
					<div class="submit"><input type="submit" class="button-primary" name="Use" value="&laquo; Use this feed" />
					<input type="submit" class="button" name="Cancel" value="× Cancel" /></div>
					</div>
					</div>
					</fieldset>
					</div> <!-- class="inside" -->
					</form>
					<?php
				unset($link);
				unset($post);
			endforeach;
		else:
			foreach ($finder as $url => $ff) :
				$url = esc_html($url);
				print "<h3>Searched for feeds at ${url}</h3>\n";
				print "<p><strong>".__('Error').":</strong> ".__("FeedWordPress couldn't find any feeds at").' <code><a href="'.htmlspecialchars($lookup).'">'.htmlspecialchars($lookup).'</a></code>';
				print ". ".__('Try another URL').".</p>";
			
				// Diagnostics
				print "<div class=\"updated\" style=\"margin-left: 3.0em; margin-right: 3.0em;\">\n";
				print "<h3>".__('Diagnostic information')."</h3>\n";
				if (!is_null($ff->error()) and strlen($ff->error()) > 0) :
					print "<h4>".__('HTTP request failure')."</h4>\n";
					print "<p>".$ff->error()."</p>\n";
				else :
					print "<h4>".__('HTTP request completed')."</h4>\n";
					print "<p><strong>Status ".$ff->status().":</strong> ".$this->HTTPStatusMessages[(int) $ff->status()]."</p>\n";
				endif;

				// Do some more diagnostics if the API for it is available.
				if (function_exists('_wp_http_get_object')) :
					$httpObject = _wp_http_get_object();
					$transports = $httpObject->_getTransport();
	
					print "<h4>".__('HTTP Transports available').":</h4>\n";
					print "<ol>\n";
					print "<li>".implode("</li>\n<li>", array_map('get_class', $transports))."</li>\n";
					print "</ol>\n";
					print "</div>\n";
				endif;
			endforeach;
		endif;
		
		if (!$feedSwitch) :
			$this->display_alt_feed_box($lookup, /*alt=*/ true);
		endif;
		?>
	</div> <!-- class="wrap" -->
		<?php
		return false; // Don't continue
	} /* FeedWordPressFeedsPage::display_feedfinder() */

	function display_alt_feed_box ($lookup, $alt = false) {
		global $fwp_post;
		?>
		<form action="admin.php?page=<?php print $GLOBALS['fwp_path'] ?>/<?php echo basename(__FILE__); ?>" method="post">
		<div class="inside"><?php
			FeedWordPressCompatibility::stamp_nonce($this->dispatch);
		?>
		<fieldset class="alt"
		<?php if (!$alt): ?>style="margin: 1.0em 3.0em; font-size: smaller;"<?php endif; ?>>
		<legend><?php if ($alt) : ?>Alternative feeds<?php else: ?>Find feeds<?php endif; ?></legend>
		<?php if ($alt) : ?><h3>Use a different feed</h3><?php endif; ?>
		<div><label>Address:
		<input type="text" name="lookup" id="use-another-feed"
		placeholder="URL"
 		<?php if (is_null($lookup)) : ?>
			value="URL"
		<?php else : ?>
			value="<?php print esc_html($lookup); ?>"
		<?php endif; ?>
		size="64" style="max-width: 80%" /></label>
		<?php if (is_null($lookup)) : ?>
		<?php FeedWordPressSettingsUI::magic_input_tip_js('use-another-feed'); ?>
		<?php endif; ?>
		<?php $this->stamp_link_id('link_id'); ?>
		<input type="hidden" name="action" value="feedfinder" />
		<input type="submit" class="button<?php if ($alt): ?>-primary<?php endif; ?>" value="Check &raquo;" /></div>
		<p>This can be the address of a feed, or of a website. FeedWordPress
		will try to automatically detect any feeds associated with a
		website.</p>
		</div> <!-- class="inside" -->
		</fieldset></form>
		
		<?php
	} /* FeedWordPressFeedsPage::display_alt_feed_box() */
	
	function save_settings ($post) {
		if ($this->for_feed_settings()) :
			if (isset($post['link_rss_params_key'])) :
				$qp = array();
				foreach ($post['link_rss_params_key'] as $index => $key) :
					if (strlen($key) > 0) :
						if (isset($post['link_rss_params_value'][$index])
						and strlen($post['link_rss_params_value'][$index])) :
							$value = $post['link_rss_params_value'][$index];
							$qp[] = array($key, $value);
						endif;
					endif;
				endforeach;
				$this->update_setting('query parameters', serialize($qp));
			endif;
			
			// custom feed settings first
			foreach ($post['notes'] as $mn) :
				$mn['key0'] = (isset($mn['key0']) ? trim($mn['key0']) : NULL);
				$mn['key1'] = trim($mn['key1']);
				if (preg_match("\007^(("
						.implode(')|(',$this->special_settings)
						."))$\007i",
						$mn['key1'])) :
					$mn['key1'] = 'user/'.$mn['key1'];
				endif;

				if (strlen($mn['key0']) > 0) :
					unset($this->link->settings[$mn['key0']]); // out with the old
				endif;
				
				if (($mn['action']=='update') and (strlen($mn['key1']) > 0)) :
					$this->link->settings[$mn['key1']] = $mn['value']; // in with the new
				endif;
			endforeach;
			
			// now stuff through the web form
			// hardcoded feed info
			
			foreach (array('name', 'description', 'url') as $what) :
				// We have a checkbox for "No," so if it's unchecked, mark as "Yes."
				$this->link->settings["hardcode {$what}"] = (isset($post["hardcode_{$what}"]) ? $post["hardcode_{$what}"] : 'yes');
				if (FeedWordPress::affirmative($this->link->settings, "hardcode {$what}")) :
					$this->link->link->{'link_'.$what} = $post['link'.$what];
				endif;
			endforeach;
			
			// Update scheduling
			if (isset($post['update_schedule'])) :
				$this->link->settings['update/hold'] = $post['update_schedule'];
			endif;

			if (isset($post['use_default_update_window']) and strtolower($post['use_default_update_window'])=='yes') :
				unset($this->link->settings['update/window']);
			elseif (isset($post['update_window'])):
				if ((int) $post['update_window'] > 0) :
					$this->link->settings['update/window'] = (int) $post['update_window'];
				endif;
			endif;
			
		else :
			// Global
			update_option('feedwordpress_cat_id', $post['syndication_category']);
			
			if (!isset($post['automatic_updates']) or !in_array($post['automatic_updates'], array('init', 'shutdown'))) :
				$automatic_updates = false;
			else :
				$automatic_updates = $post['automatic_updates'];
			endif;
			update_option('feedwordpress_automatic_updates', $automatic_updates);

			if (isset($post['update_window'])):
				if ((int) $post['update_window'] > 0) :
					update_option('feedwordpress_update_window', (int) $post['update_window']);
				endif;
			endif;

			update_option('feedwordpress_update_time_limit', ($post['update_time_limit']=='yes')?(int) $post['time_limit_seconds']:0);

			foreach (array('name', 'description', 'url') as $what) :
				// We have a checkbox for "No," so if it's unchecked, mark as "Yes."
				$hardcode = (isset($post["hardcode_{$what}"]) ? $post["hardcode_{$what}"] : 'yes');
				update_option("feedwordpress_hardcode_{$what}", $hardcode);
			endforeach;
			
		endif;
		
		if (isset($post['fetch_timeout'])) :
			if (isset($post['fetch_timeout_default']) and $post['fetch_timeout_default']=='yes') :
				$timeout = NULL;
			else :
				$timeout = $post['fetch_timeout'];
			endif;

			if (is_int($timeout)) :
				$timeout = intval($timeout);
			endif;
			$this->update_setting('fetch timeout', $timeout);
		endif;
		
		$this->updatedPosts->accept_POST($post);
		parent::save_settings($post);
	} /* FeedWordPressFeedsPage::save_settings() */

} /* class FeedWordPressFeedsPage */

	$feedsPage = new FeedWordPressFeedsPage;
	$feedsPage->display();