feedwordpress / compatability.php

compatability.php in FeedWordPress 2011.0512, at compatability.php

276 lines 9.2 KB

Raw Download Zip

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 $cat_id;
70	} /* FeedWordPressCompatibility::link_category_id () */
71
72	/static/ function post_tags () {
73	return FeedWordPressCompatibility::test_version(FWP_SCHEMA_23);
74	} /* FeedWordPressCompatibility::post_tags () */
75
76	/static/ function validate_http_request ($action = -1, $capability = null) {
77	// Only worry about this if we're using a method with significant side-effects
78	if (strtoupper($_SERVER['REQUEST_METHOD']) == 'POST') :
79	// Limit post by user capabilities
80	if (!is_null($capability) and !current_user_can($capability)) :
81	wp_die(__('Cheatin’ uh?'));
82	endif;
83
84	// If check_admin_referer() checks a nonce.
85	if (function_exists('wp_verify_nonce')) :
86	check_admin_referer($action);
87
88	// No nonces means no checking nonces.
89	else :
90	check_admin_referer();
91	endif;
92	endif;
93	} /* FeedWordPressCompatibility::validate_http_request() */
94
95	/static/ function stamp_nonce ($action = -1) {
96	// stamp form with hidden fields for a nonce in WP 2.0.3 & later
97	if (function_exists('wp_nonce_field')) :
98	wp_nonce_field($action);
99	endif;
100	} /* FeedWordPressCompatibility::stamp_nonce() */
101
102	/static/ function bottom_script_hook ($filename) {
103	global $fwp_path;
104
105	$hook = 'admin_footer';
106	if (FeedWordPressCompatibility::test_version(FWP_SCHEMA_28)) : // WordPress 2.8+
107	$hook = $hook . '-' . $fwp_path . '/' . basename($filename);
108	endif;
109	return $hook;
110	} /* FeedWordPressCompatibility::bottom_script_hook() */
111	} /* class FeedWordPressCompatibility */
112
113	define('FEEDWORDPRESS_AND_TAGS', (FeedWordPressCompatibility::post_tags() ? ' & Tags' : ''));
114
115	if (!function_exists('stripslashes_deep')) {
116	function stripslashes_deep($value) {
117	$value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value);
118	return $value;
119	}
120	}
121
122	if (!function_exists('sanitize_user')) {
123	function sanitize_user ($text, $strict = false) {
124	return $text; // Don't munge it if it wasn't munged going in...
125	}
126	}
127
128	if (!function_exists('disabled')) {
129	/**
130	* Outputs the html disabled attribute.
131	*
132	* Compares the first two arguments and if identical marks as disabled
133	*
134	* @since 3.0.0
135	*
136	* @param mixed $disabled One of the values to compare
137	* @param mixed $current (true) The other value to compare if not just true
138	* @param bool $echo Whether to echo or just return the string
139	* @return string html attribute or empty string
140	*/
141	function disabled( $disabled, $current = true, $echo = true ) {
142	return __checked_selected_helper( $disabled, $current, $echo, 'disabled' );
143	}
144	} /* if */
145
146	// Compat
147
148	if (!function_exists('set_post_field')) {
149
150	/**
151	* Update data from a post field based on Post ID
152	*
153	* Examples of the post field will be, 'post_type', 'post_status', 'post_content', etc.
154	*
155	* The context values are based off of the taxonomy filter functions and
156	* supported values are found within those functions.
157	*
158	* @uses sanitize_post_field()
159	*
160	* @param string $field Post field name
161	* @param mixed $value New value for post field
162	* @param id $post Post ID
163	* @return bool Result of UPDATE query
164	*
165	* Included under terms of GPL from WordPress Ticket #10946 <http://core.trac.wordpress.org/attachment/ticket/10946/post.php.diff>
166	*/
167	function set_post_field ($field, $value, $post_id) {
168	global $wpdb;
169
170	$post_id = absint($post_id);
171	// sigh ... when FWP is active, I need to avoid avoid_kses_munge
172	// $value = sanitize_post_field($field, $value, $post_id, 'db');
173	return $wpdb->update($wpdb->posts, array($field => $value), array('ID' => $post_id));
174	} /* function set_post_field () */
175
176	} /* if */
177
178	if (!function_exists('term_exists')) {
179	// Fucking WordPress 3.0 wordsmithing.
180	function term_exists ( $term, $taxonomy = '', $parent = 0 ) {
181	return is_term($term, $taxonomy, $parent);
182	}
183	} /* if */
184
185	require_once(dirname(__FILE__).'/feedwordpress-walker-category-checklist.class.php');
186
187	function fwp_category_checklist ($post_id = 0, $descendents_and_self = 0, $selected_cats = false, $params = array()) {
188	if (is_string($params)) :
189	$prefix = $params;
190	$taxonomy = 'category';
191	elseif (is_array($params)) :
192	$prefix = (isset($params['prefix']) ? $params['prefix'] : '');
193	$taxonomy = (isset($params['taxonomy']) ? $params['taxonomy'] : 'category');
194	endif;
195
196	$walker = new FeedWordPress_Walker_Category_Checklist($params);
197	$walker->set_prefix($prefix);
198	$walker->set_taxonomy($taxonomy);
199	wp_terms_checklist(/post_id=/ $post_id, array(
200	'taxonomy' => $taxonomy,
201	'descendents_and_self' => $descendents_and_self,
202	'selected_cats' => $selected_cats,
203	'popular_cats' => false,
204	'walker' => $walker,
205	'checked_ontop' => true,
206	));
207	}
208
209	function fwp_time_elapsed ($ts) {
210	if (function_exists('human_time_diff')) :
211	if ($ts >= time()) :
212	$ret = __(human_time_diff($ts)." from now");
213	else :
214	$ret = __(human_time_diff($ts)." ago");
215	endif;
216	else :
217	$ret = strftime('%x %X', $ts);
218	endif;
219	return $ret;
220	}
221
222	################################################################################
223	## UPGRADE INTERFACE: Have users upgrade DB from older versions of FWP #########
224	################################################################################
225
226	function fwp_upgrade_page () {
227	if (isset($GLOBALS['fwp_post']['action']) and $GLOBALS['fwp_post']['action']=='Upgrade') :
228	$ver = get_option('feedwordpress_version');
229	if (get_option('feedwordpress_version') != FEEDWORDPRESS_VERSION) :
230	echo "<div class=\"wrap\">\n";
231	echo "<h2>Upgrading FeedWordPress...</h2>";
232
233	$feedwordpress = new FeedWordPress;
234	$feedwordpress->upgrade_database($ver);
235	echo "<p><strong>Done!</strong> Upgraded database to version ".FEEDWORDPRESS_VERSION.".</p>\n";
236	echo "<form action=\"\" method=\"get\">\n";
237	echo "<div class=\"submit\"><input type=\"hidden\" name=\"page\" value=\"syndication.php\" />";
238	echo "<input type=\"submit\" value=\"Continue »\" /></form></div>\n";
239	echo "</div>\n";
240	return;
241	else :
242	echo "<div class=\"updated\"><p>Already at version ".FEEDWORDPRESS_VERSION."!</p></div>";
243	endif;
244	endif;
245	?>
246	<div class="wrap">
247	<h2>Upgrade FeedWordPress</h2>
248
249	<p>It appears that you have installed FeedWordPress
250	<?php echo FEEDWORDPRESS_VERSION; ?> as an upgrade to an existing installation of
251	FeedWordPress. That's no problem, but you will need to take a minute out first
252	to upgrade your database: some necessary changes in how the software keeps
253	track of posts and feeds will cause problems such as duplicate posts and broken
254	templates if we were to continue without the upgrade.</p>
255
256	<p>Note that most of FeedWordPress's functionality is temporarily disabled
257	until we have successfully completed the upgrade. Everything should begin
258	working as normal again once the upgrade is complete. There's extraordinarily
259	little chance of any damage as the result of the upgrade, but if you're paranoid
260	like me you may want to back up your database before you proceed.</p>
261
262	<p>This may take several minutes for a large installation.</p>
263
264	<form action="" method="post">
265	<?php FeedWordPressCompatibility::stamp_nonce('feedwordpress_upgrade'); ?>
266	<div class="submit"><input type="submit" name="action" value="Upgrade" /></div>
267	</form>
268	</div>
269	<?php
270	} // function fwp_upgrade_page ()
271
272	function remove_dummy_zero ($var) {
273	return !(is_numeric($var) and ((int) $var == 0));
274	}
275
276