Adds FeedWordPress. Fixes #329

wp-content/plugins/feedwordpress/compatability.php

@@ -0,0 +1,275 @@
+<?php
+################################################################################
+## LEGACY API: Replicate or mock up functions for legacy support purposes ######
+################################################################################
+
+class FeedWordPressCompatibility {
+
+	/**
+	 * FeedWordPressCompatibility::test_version: test version of WordPress
+	 * based on the database schema version.
+	 *
+	 * @param int $floor The minimum version necessary
+	 * @param mixed $ceiling The first version that is too high. If omitted
+	 * 	or NULL, no version is too high.
+	 * @return bool TRUE if within the range of versions, FALSE if too low
+	 * 	or too high.
+	 */
+	/*static*/ function test_version ($floor, $ceiling = null) {
+		global $wp_db_version;
+
+		$ver = (isset($wp_db_version) ? $wp_db_version : 0);
+		$good = ($ver >= $floor);
+		if (!is_null($ceiling)) :
+			$good = ($good and ($ver < $ceiling));
+		endif;
+		return $good;
+	} /* FeedWordPressCompatibility::test_version() */
+
+	/*static*/ function insert_link_category ($name) {
+		global $wpdb;
+
+		// WordPress 2.3+ term/taxonomy API
+		$term = wp_insert_term($name, 'link_category');
+
+		// OK: returned array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id)
+		if (!is_wp_error($term)) :
+			$cat_id = $term['term_id'];
+
+		// Error: term with this name already exists. Well, let's use that then.
+		elseif ($term->get_error_code() == 'term_exists') :
+			// Already-existing term ID is returned in data field
+			$cat_id = $term->get_error_data('term_exists');
+
+		// Error: another kind of error, harder to recover from. Return WP_Error.
+		else :
+			$cat_id = $term;
+		endif;
+
+		// Return newly-created category ID
+		return $cat_id;
+	} /* FeedWordPressCompatibility::insert_link_category () */
+
+	/*static*/ function link_category_id ($value, $key = 'cat_name') {
+		global $wpdb;
+
+		$cat_id = NULL;
+
+		$the_term = term_exists($value, 'link_category');
+
+		// Sometimes, in some versions, we get a row
+		if (is_array($the_term)) :
+			$cat_id = $the_term['term_id'];
+
+		// other times we get an integer result
+		else :
+			$cat_id = $the_term;
+		endif;
+
+		return $cat_id;
+	} /* FeedWordPressCompatibility::link_category_id () */
+
+	/*static*/ function post_tags () {
+		return FeedWordPressCompatibility::test_version(FWP_SCHEMA_23);
+	} /* FeedWordPressCompatibility::post_tags () */
+
+	/*static*/ function validate_http_request ($action = -1, $capability = null) {
+		// Only worry about this if we're using a method with significant side-effects
+		if (strtoupper($_SERVER['REQUEST_METHOD']) == 'POST') :
+			// Limit post by user capabilities
+			if (!is_null($capability) and !current_user_can($capability)) :
+				wp_die(__('Cheatin&#8217; uh?'));
+			endif;
+
+			// If check_admin_referer() checks a nonce.
+			if (function_exists('wp_verify_nonce')) :
+				check_admin_referer($action);
+
+			// No nonces means no checking nonces.
+			else :
+				check_admin_referer();
+			endif;
+		endif;
+	} /* FeedWordPressCompatibility::validate_http_request() */
+
+	/*static*/ function stamp_nonce ($action = -1) {
+		// stamp form with hidden fields for a nonce in WP 2.0.3 & later
+		if (function_exists('wp_nonce_field')) :
+			wp_nonce_field($action);
+		endif;
+	} /* FeedWordPressCompatibility::stamp_nonce() */
+
+	/*static*/ function bottom_script_hook ($filename) {
+		global $fwp_path;
+
+		$hook = 'admin_footer';
+		if (FeedWordPressCompatibility::test_version(FWP_SCHEMA_28)) : // WordPress 2.8+
+			$hook = $hook . '-' . $fwp_path . '/' . basename($filename);
+		endif;
+		return $hook;
+	} /* FeedWordPressCompatibility::bottom_script_hook() */
+} /* class FeedWordPressCompatibility */
+
+define('FEEDWORDPRESS_AND_TAGS', (FeedWordPressCompatibility::post_tags() ? ' & Tags' : ''));
+
+if (!function_exists('stripslashes_deep')) {
+	function stripslashes_deep($value) {
+		$value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value);
+		return $value;
+	}
+}
+
+if (!function_exists('sanitize_user')) {
+	function sanitize_user ($text, $strict = false) {
+		return $text; // Don't munge it if it wasn't munged going in...
+	}
+}
+
+if (!function_exists('disabled')) {
+	/**
+	 * Outputs the html disabled attribute.
+	 *
+	 * Compares the first two arguments and if identical marks as disabled
+	 *
+	 * @since 3.0.0
+	 *
+	 * @param mixed $disabled One of the values to compare
+	 * @param mixed $current (true) The other value to compare if not just true
+	 * @param bool $echo Whether to echo or just return the string
+	 * @return string html attribute or empty string
+	 */
+	function disabled( $disabled, $current = true, $echo = true ) {
+		return __checked_selected_helper( $disabled, $current, $echo, 'disabled' );
+	}
+} /* if */
+
+// Compat
+
+if (!function_exists('set_post_field')) {
+
+	/**
+	 * Update data from a post field based on Post ID
+	 *
+	 * Examples of the post field will be, 'post_type', 'post_status', 'post_content', etc.
+	 *
+	 * The context values are based off of the taxonomy filter functions and
+	 * supported values are found within those functions.
+	 *
+	 * @uses sanitize_post_field()
+	 *
+	 * @param string $field Post field name
+	 * @param mixed $value New value for post field
+	 * @param id $post Post ID
+	 * @return bool Result of UPDATE query
+	 *
+	 * Included under terms of GPL from WordPress Ticket #10946 <http://core.trac.wordpress.org/attachment/ticket/10946/post.php.diff>
+	 */
+	function set_post_field ($field, $value, $post_id) {
+		global $wpdb; 
+
+		$post_id = absint($post_id);
+		// sigh ... when FWP is active, I need to avoid avoid_kses_munge
+		// $value = sanitize_post_field($field, $value, $post_id, 'db'); 
+		return $wpdb->update($wpdb->posts, array($field => $value), array('ID' => $post_id));
+	} /* function set_post_field () */
+
+} /* if */
+
+if (!function_exists('term_exists')) {
+	// Fucking WordPress 3.0 wordsmithing.
+	function term_exists ( $term, $taxonomy = '', $parent = 0 ) {
+		return is_term($term, $taxonomy, $parent);
+	}
+} /* if */
+
+require_once(dirname(__FILE__).'/feedwordpress-walker-category-checklist.class.php');
+
+function fwp_category_checklist ($post_id = 0, $descendents_and_self = 0, $selected_cats = false, $params = array()) {
+	if (is_string($params)) :
+		$prefix = $params;
+		$taxonomy = 'category';
+	elseif (is_array($params)) :
+		$prefix = (isset($params['prefix']) ? $params['prefix'] : '');
+		$taxonomy = (isset($params['taxonomy']) ? $params['taxonomy'] : 'category');
+	endif;
+
+	$walker = new FeedWordPress_Walker_Category_Checklist($params);
+	$walker->set_prefix($prefix);
+	$walker->set_taxonomy($taxonomy); 
+	wp_terms_checklist(/*post_id=*/ $post_id, array(
+		'taxonomy' => $taxonomy,
+		'descendents_and_self' => $descendents_and_self,
+		'selected_cats' => $selected_cats,
+		'popular_cats' => false,
+		'walker' => $walker,
+		'checked_ontop' => true,
+	));
+}
+
+function fwp_time_elapsed ($ts) {
+	if (function_exists('human_time_diff')) :
+		if ($ts >= time()) :
+			$ret = __(human_time_diff($ts)." from now");
+		else :
+			$ret = __(human_time_diff($ts)." ago");
+		endif;
+	else :
+		$ret = strftime('%x %X', $ts);
+	endif;
+	return $ret;
+}
+
+################################################################################
+## UPGRADE INTERFACE: Have users upgrade DB from older versions of FWP #########
+################################################################################
+
+function fwp_upgrade_page () {
+	if (isset($GLOBALS['fwp_post']['action']) and $GLOBALS['fwp_post']['action']=='Upgrade') :
+		$ver = get_option('feedwordpress_version');
+		if (get_option('feedwordpress_version') != FEEDWORDPRESS_VERSION) :
+			echo "<div class=\"wrap\">\n";
+			echo "<h2>Upgrading FeedWordPress...</h2>";
+
+			$feedwordpress = new FeedWordPress;
+			$feedwordpress->upgrade_database($ver);
+			echo "<p><strong>Done!</strong> Upgraded database to version ".FEEDWORDPRESS_VERSION.".</p>\n";
+			echo "<form action=\"\" method=\"get\">\n";
+			echo "<div class=\"submit\"><input type=\"hidden\" name=\"page\" value=\"syndication.php\" />";
+			echo "<input type=\"submit\" value=\"Continue &raquo;\" /></form></div>\n";
+			echo "</div>\n";
+			return;
+		else :
+			echo "<div class=\"updated\"><p>Already at version ".FEEDWORDPRESS_VERSION."!</p></div>";
+		endif;
+	endif;
+?>
+<div class="wrap">
+<h2>Upgrade FeedWordPress</h2>
+
+<p>It appears that you have installed FeedWordPress
+<?php echo FEEDWORDPRESS_VERSION; ?> as an upgrade to an existing installation of
+FeedWordPress. That's no problem, but you will need to take a minute out first
+to upgrade your database: some necessary changes in how the software keeps
+track of posts and feeds will cause problems such as duplicate posts and broken
+templates if we were to continue without the upgrade.</p>
+
+<p>Note that most of FeedWordPress's functionality is temporarily disabled
+until we have successfully completed the upgrade. Everything should begin
+working as normal again once the upgrade is complete. There's extraordinarily
+little chance of any damage as the result of the upgrade, but if you're paranoid
+like me you may want to back up your database before you proceed.</p>
+
+<p>This may take several minutes for a large installation.</p>
+
+<form action="" method="post">
+<?php FeedWordPressCompatibility::stamp_nonce('feedwordpress_upgrade'); ?>
+<div class="submit"><input type="submit" name="action" value="Upgrade" /></div>
+</form>
+</div>
+<?php
+} // function fwp_upgrade_page ()
+
+function remove_dummy_zero ($var) {
+	return !(is_numeric($var) and ((int) $var == 0));
+}
+