feedwordpress / compatability.php

compatability.php in FeedWordPress 2012.1212, at compatability.php

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1	<?php
2	################################################################################
3	## LEGACY API: Replicate or mock up functions for legacy support purposes ######
4	################################################################################
5
6	class FeedWordPressCompatibility {
7
8	/**
9	* FeedWordPressCompatibility::test_version: test version of WordPress
10	* based on the database schema version.
11	*
12	* @param int $floor The minimum version necessary
13	* @param mixed $ceiling The first version that is too high. If omitted
14	* or NULL, no version is too high.
15	* @return bool TRUE if within the range of versions, FALSE if too low
16	* or too high.
17	*/
18	/static/ function test_version ($floor, $ceiling = null) {
19	global $wp_db_version;
20
21	$ver = (isset($wp_db_version) ? $wp_db_version : 0);
22	$good = ($ver >= $floor);
23	if (!is_null($ceiling)) :
24	$good = ($good and ($ver < $ceiling));
25	endif;
26	return $good;
27	} /* FeedWordPressCompatibility::test_version() */
28
29	/static/ function insert_link_category ($name) {
30	global $wpdb;
31
32	// WordPress 2.3+ term/taxonomy API
33	$term = wp_insert_term($name, 'link_category');
34
35	// OK: returned array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id)
36	if (!is_wp_error($term)) :
37	$cat_id = $term['term_id'];
38
39	// Error: term with this name already exists. Well, let's use that then.
40	elseif ($term->get_error_code() == 'term_exists') :
41	// Already-existing term ID is returned in data field
42	$cat_id = $term->get_error_data('term_exists');
43
44	// Error: another kind of error, harder to recover from. Return WP_Error.
45	else :
46	$cat_id = $term;
47	endif;
48
49	// Return newly-created category ID
50	return $cat_id;
51	} /* FeedWordPressCompatibility::insert_link_category () */
52
53	/static/ function link_category_id ($value, $key = 'cat_name') {
54	global $wpdb;
55
56	$cat_id = NULL;
57
58	$the_term = term_exists($value, 'link_category');
59
60	// Sometimes, in some versions, we get a row
61	if (is_array($the_term)) :
62	$cat_id = $the_term['term_id'];
63
64	// other times we get an integer result
65	else :
66	$cat_id = $the_term;
67	endif;
68
69	return $cat_id;
70	} /* FeedWordPressCompatibility::link_category_id () */
71
72	/static/ function validate_http_request ($action = -1, $capability = null) {
73	// Only worry about this if we're using a method with significant side-effects
74	if (strtoupper($_SERVER['REQUEST_METHOD']) == 'POST') :
75	// Limit post by user capabilities
76	if (!is_null($capability) and !current_user_can($capability)) :
77	wp_die(__('Cheatin’ uh?'));
78	endif;
79
80	// If check_admin_referer() checks a nonce.
81	if (function_exists('wp_verify_nonce')) :
82	check_admin_referer($action);
83
84	// No nonces means no checking nonces.
85	else :
86	check_admin_referer();
87	endif;
88	endif;
89	} /* FeedWordPressCompatibility::validate_http_request() */
90
91	/static/ function stamp_nonce ($action = -1) {
92	// stamp form with hidden fields for a nonce in WP 2.0.3 & later
93	if (function_exists('wp_nonce_field')) :
94	wp_nonce_field($action);
95	endif;
96	} /* FeedWordPressCompatibility::stamp_nonce() */
97
98	/static/ function bottom_script_hook ($filename) {
99	global $fwp_path;
100
101	$hook = 'admin_footer-'.$fwp_path.'/'.basename($filename);
102	return $hook;
103	} /* FeedWordPressCompatibility::bottom_script_hook() */
104	} /* class FeedWordPressCompatibility */
105
106	// Compat
107
108	if (!function_exists('set_post_field')) {
109
110	/**
111	* Update data from a post field based on Post ID
112	*
113	* Examples of the post field will be, 'post_type', 'post_status', 'post_content', etc.
114	*
115	* The context values are based off of the taxonomy filter functions and
116	* supported values are found within those functions.
117	*
118	* @uses sanitize_post_field()
119	*
120	* @param string $field Post field name
121	* @param mixed $value New value for post field
122	* @param id $post Post ID
123	* @return bool Result of UPDATE query
124	*
125	* Included under terms of GPL from WordPress Ticket #10946 <http://core.trac.wordpress.org/attachment/ticket/10946/post.php.diff>
126	*/
127	function set_post_field ($field, $value, $post_id) {
128	global $wpdb;
129
130	$post_id = absint($post_id);
131	// sigh ... when FWP is active, I need to avoid avoid_kses_munge
132	// $value = sanitize_post_field($field, $value, $post_id, 'db');
133	return $wpdb->update($wpdb->posts, array($field => $value), array('ID' => $post_id));
134	} /* function set_post_field () */
135
136	} /* if */
137
138	require_once(dirname(__FILE__).'/feedwordpress-walker-category-checklist.class.php');
139
140	function fwp_category_checklist ($post_id = 0, $descendents_and_self = 0, $selected_cats = false, $params = array()) {
141	if (is_string($params)) :
142	$prefix = $params;
143	$taxonomy = 'category';
144	elseif (is_array($params)) :
145	$prefix = (isset($params['prefix']) ? $params['prefix'] : '');
146	$taxonomy = (isset($params['taxonomy']) ? $params['taxonomy'] : 'category');
147	endif;
148
149	$walker = new FeedWordPress_Walker_Category_Checklist($params);
150	$walker->set_prefix($prefix);
151	$walker->set_taxonomy($taxonomy);
152	wp_terms_checklist(/post_id=/ $post_id, array(
153	'taxonomy' => $taxonomy,
154	'descendents_and_self' => $descendents_and_self,
155	'selected_cats' => $selected_cats,
156	'popular_cats' => false,
157	'walker' => $walker,
158	'checked_ontop' => true,
159	));
160	}
161
162	function fwp_time_elapsed ($ts) {
163	if (function_exists('human_time_diff')) :
164	if ($ts >= time()) :
165	$ret = __(human_time_diff($ts)." from now");
166	else :
167	$ret = __(human_time_diff($ts)." ago");
168	endif;
169	else :
170	$ret = strftime('%x %X', $ts);
171	endif;
172	return $ret;
173	}
174
175	################################################################################
176	## UPGRADE INTERFACE: Have users upgrade DB from older versions of FWP #########
177	################################################################################
178
179	function fwp_upgrade_page () {
180	if (isset($GLOBALS['fwp_post']['action']) and $GLOBALS['fwp_post']['action']=='Upgrade') :
181	$ver = get_option('feedwordpress_version');
182	if (get_option('feedwordpress_version') != FEEDWORDPRESS_VERSION) :
183	echo "<div class=\"wrap\">\n";
184	echo "<h2>Upgrading FeedWordPress...</h2>";
185
186	$feedwordpress = new FeedWordPress;
187	$feedwordpress->upgrade_database($ver);
188	echo "<p><strong>Done!</strong> Upgraded database to version ".FEEDWORDPRESS_VERSION.".</p>\n";
189	echo "<form action=\"\" method=\"get\">\n";
190	echo "<div class=\"submit\"><input type=\"hidden\" name=\"page\" value=\"syndication.php\" />";
191	echo "<input type=\"submit\" value=\"Continue »\" /></form></div>\n";
192	echo "</div>\n";
193	return;
194	else :
195	echo "<div class=\"updated\"><p>Already at version ".FEEDWORDPRESS_VERSION."!</p></div>";
196	endif;
197	endif;
198	?>
199	<div class="wrap">
200	<h2>Upgrade FeedWordPress</h2>
201
202	<p>It appears that you have installed FeedWordPress
203	<?php echo FEEDWORDPRESS_VERSION; ?> as an upgrade to an existing installation of
204	FeedWordPress. That's no problem, but you will need to take a minute out first
205	to upgrade your database: some necessary changes in how the software keeps
206	track of posts and feeds will cause problems such as duplicate posts and broken
207	templates if we were to continue without the upgrade.</p>
208
209	<p>Note that most of FeedWordPress's functionality is temporarily disabled
210	until we have successfully completed the upgrade. Everything should begin
211	working as normal again once the upgrade is complete. There's extraordinarily
212	little chance of any damage as the result of the upgrade, but if you're paranoid
213	like me you may want to back up your database before you proceed.</p>
214
215	<p>This may take several minutes for a large installation.</p>
216
217	<form action="" method="post">
218	<?php FeedWordPressCompatibility::stamp_nonce('feedwordpress_upgrade'); ?>
219	<div class="submit"><input type="submit" name="action" value="Upgrade" /></div>
220	</form>
221	</div>
222	<?php
223	} // function fwp_upgrade_page ()
224
225	function remove_dummy_zero ($var) {
226	return !(is_numeric($var) and ((int) $var == 0));
227	}
228
229