feedwordpress / compatability.php

compatability.php in FeedWordPress 2010.0528, 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	// version testing
7	function fwp_test_wp_version ($floor, $ceiling = NULL) {
8	global $wp_db_version;
9
10	$ver = (isset($wp_db_version) ? $wp_db_version : 0);
11	$good = ($ver >= $floor);
12	if (!is_null($ceiling)) :
13	$good = ($good and ($ver < $ceiling));
14	endif;
15	return $good;
16	} /* function fwp_test_wp_version () */
17
18	class FeedWordPressCompatibility {
19	/static/ function test_version ($floor, $ceiling = null) {
20	return fwp_test_wp_version($floor, $ceiling);
21	} /* FeedWordPressCompatibility::test_version() */
22
23	/static/ function insert_link_category ($name) {
24	global $wpdb;
25
26	$name = $wpdb->escape($name);
27
28	// WordPress 2.3+ term/taxonomy API
29	if (function_exists('wp_insert_term')) :
30	$term = wp_insert_term($name, 'link_category');
31	$cat_id = $term['term_id'];
32	// WordPress 2.1, 2.2 category API. By the way, why the fuck is this API function only available in a wp-admin module?
33	elseif (function_exists('wp_insert_category') and !fwp_test_wp_version(FWP_SCHEMA_20, FWP_SCHEMA_21)) :
34	$cat_id = wp_insert_category(array('cat_name' => $name));
35	// WordPress 1.5 and 2.0.x
36	elseif (fwp_test_wp_version(0, FWP_SCHEMA_21)) :
37	$result = $wpdb->query("
38	INSERT INTO $wpdb->linkcategories
39	SET
40	cat_id = 0,
41	cat_name='$name',
42	show_images='N',
43	show_description='N',
44	show_rating='N',
45	show_updated='N',
46	sort_order='name'
47	");
48	$cat_id = $wpdb->insert_id;
49	// This should never happen.
50	else :
51	FeedWordPress::critical_bug('FeedWordPress::link_category_id::wp_db_version', $wp_db_version, __LINE__);
52	endif;
53
54	// Return newly-created category ID
55	return $cat_id;
56	} /* FeedWordPressCompatibility::insert_link_category () */
57
58	/static/ function link_category_id ($value, $key = 'cat_name') {
59	global $wpdb;
60
61	$cat_id = NULL;
62
63	// WordPress 2.3 introduces a new taxonomy/term API
64	if (function_exists('is_term')) :
65	$the_term = is_term($value, 'link_category');
66
67	// Sometimes, in some versions, we get a row
68	if (is_array($the_term)) :
69	$cat_id = $the_term['term_id'];
70
71	// other times we get an integer result
72	else :
73	$cat_id = $the_term;
74	endif;
75
76	// WordPress 2.1 and 2.2 use a common table for both link and post categories
77	elseif (fwp_test_wp_version(FWP_SCHEMA_21, FWP_SCHEMA_23)) :
78	$value = $wpdb->escape($value);
79	$cat_id = $wpdb->get_var("SELECT cat_id FROM {$wpdb->categories} WHERE {$key}='$value'");
80
81	// WordPress 1.5 and 2.0.x have a separate table for link categories
82	elseif (fwp_test_wp_version(0, FWP_SCHEMA_21)):
83	$value = $wpdb->escape($value);
84	$cat_id = $wpdb->get_var("SELECT cat_id FROM {$wpdb->linkcategories} WHERE {$key}='$value'");
85
86	// This should never happen.
87	else :
88	FeedWordPress::critical_bug(__CLASS__.'::'.__METHOD__.'::wp_db_version', $wp_db_version, __LINE__);
89	endif;
90
91	return $cat_id;
92	} /* FeedWordPressCompatibility::link_category_id () */
93
94	/static/ function post_tags () {
95	return FeedWordPressCompatibility::test_version(FWP_SCHEMA_23);
96	} /* FeedWordPressCompatibility::post_tags () */
97
98	/static/ function validate_http_request ($action = -1, $capability = null) {
99	// Only worry about this if we're using a method with significant side-effects
100	if (strtoupper($_SERVER['REQUEST_METHOD']) == 'POST') :
101	// Limit post by user capabilities
102	if (!is_null($capability) and !current_user_can($capability)) :
103	wp_die(__('Cheatin’ uh?'));
104	endif;
105
106	// If check_admin_referer() checks a nonce.
107	if (function_exists('wp_verify_nonce')) :
108	check_admin_referer($action);
109
110	// No nonces means no checking nonces.
111	else :
112	check_admin_referer();
113	endif;
114	endif;
115	} /* FeedWordPressCompatibility::validate_http_request() */
116
117	/static/ function stamp_nonce ($action = -1) {
118	// stamp form with hidden fields for a nonce in WP 2.0.3 & later
119	if (function_exists('wp_nonce_field')) :
120	wp_nonce_field($action);
121	endif;
122	} /* FeedWordPressCompatibility::stamp_nonce() */
123
124	/static/ function bottom_script_hook ($filename) {
125	global $fwp_path;
126
127	$hook = 'admin_footer';
128	if (FeedWordPressCompatibility::test_version(FWP_SCHEMA_28)) : // WordPress 2.8+
129	$hook = $hook . '-' . $fwp_path . '/' . basename($filename);
130	endif;
131	return $hook;
132	} /* FeedWordPressCompatibility::bottom_script_hook() */
133	} /* class FeedWordPressCompatibility */
134
135	define('FEEDWORDPRESS_AND_TAGS', (FeedWordPressCompatibility::post_tags() ? ' & Tags' : ''));
136
137	if (!function_exists('stripslashes_deep')) {
138	function stripslashes_deep($value) {
139	$value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value);
140	return $value;
141	}
142	}
143
144	if (!function_exists('get_option')) {
145	function get_option ($option) {
146	return get_settings($option);
147	}
148	}
149	if (!function_exists('current_user_can')) {
150	$fwp_capability['manage_options'] = 6;
151	$fwp_capability['manage_links'] = 5;
152	function current_user_can ($task) {
153	global $user_level;
154
155	$can = false;
156
157	// This is not a full replacement for current_user_can. It
158	// is only for checking the capabilities we care about via the
159	// WordPress 1.5 user levels.
160	switch ($task) :
161	case 'manage_options':
162	$can = ($user_level >= 6);
163	break;
164	case 'manage_links':
165	$can = ($user_level >= 5);
166	break;
167	case 'edit_files':
168	$can = ($user_level >= 9);
169	break;
170	endswitch;
171	return $can;
172	}
173	} else {
174	$fwp_capability['manage_options'] = 'manage_options';
175	$fwp_capability['manage_links'] = 'manage_links';
176	}
177	if (!function_exists('sanitize_user')) {
178	function sanitize_user ($text, $strict = false) {
179	return $text; // Don't munge it if it wasn't munged going in...
180	}
181	}
182	if (!function_exists('wp_insert_user')) {
183	function wp_insert_user ($userdata) {
184	global $wpdb;
185
186	#-- Help WordPress 1.5.x quack like a duck
187	$login = $userdata['user_login'];
188	$author = $userdata['display_name'];
189	$nice_author = $userdata['user_nicename'];
190	$email = $userdata['user_email'];
191	$url = $userdata['user_url'];
192
193	$wpdb->query (
194	"INSERT INTO $wpdb->users
195	SET
196	ID='0',
197	user_login='$login',
198	user_firstname='$author',
199	user_nickname='$author',
200	user_nicename='$nice_author',
201	user_description='$author',
202	user_email='$email',
203	user_url='$url'");
204	$id = $wpdb->insert_id;
205
206	return $id;
207	}
208	} /* if (!function_exists('wp_insert_user')) */
209
210	if (!function_exists('wp_die')) {
211	function wp_die ( $message, $title = '', $args = array() ) {
212	die($message);
213	} /* wp_die() */
214	} /* if */
215
216	if (!function_exists('add_post_meta')) {
217	function add_post_meta ($postId, $key, $value, $unique) {
218	global $wpdb;
219
220	$postId = (int) $postId;
221	$key = $wpdb->escape($key);
222	$value = $wpdb->escape($value);
223
224	$result = $wpdb->query("
225	INSERT INTO $wpdb->postmeta
226	SET
227	post_id='$postId',
228	meta_key='$key',
229	meta_value='$value'
230	");
231	if (!$result) :
232	$err = mysql_error();
233	if (FEEDWORDPRESS_DEBUG) :
234	echo "[DEBUG:".date('Y-m-d H:i:S')."][feedwordpress]: post metadata insertion FAILED for field '$key' := '$value': [$err]";
235	endif;
236	endif;
237	} /* add_post_meta() */
238	} /* if */
239
240	function fwp_category_checklist ($post_id = 0, $descendents_and_self = 0, $selected_cats = false) {
241	if (function_exists('wp_category_checklist')) :
242	wp_category_checklist($post_id, $descendents_and_self, $selected_cats);
243	else :
244	// selected_cats is an array of integer cat_IDs / term_ids for
245	// the categories that should be checked
246	global $post_ID;
247
248	$cats = get_nested_categories();
249
250	// Undo damage from usort() in WP 2.0
251	$dogs = array();
252	foreach ($cats as $cat) :
253	$dogs[$cat['cat_ID']] = $cat;
254	endforeach;
255	foreach ($selected_cats as $cat_id) :
256	$dogs[$cat_id]['checked'] = true;
257	endforeach;
258	write_nested_categories($dogs);
259	endif;
260	}
261
262	function fwp_time_elapsed ($ts) {
263	if (function_exists('human_time_diff')) :
264	if ($ts >= time()) :
265	$ret = __(human_time_diff($ts)." from now");
266	else :
267	$ret = __(human_time_diff($ts)." ago");
268	endif;
269	else :
270	$ret = strftime('%x %X', $ts);
271	endif;
272	return $ret;
273	}
274
275	################################################################################
276	## UPGRADE INTERFACE: Have users upgrade DB from older versions of FWP #########
277	################################################################################
278
279	function fwp_upgrade_page () {
280	if (isset($GLOBALS['fwp_post']['action']) and $GLOBALS['fwp_post']['action']=='Upgrade') :
281	$ver = get_option('feedwordpress_version');
282	if (get_option('feedwordpress_version') != FEEDWORDPRESS_VERSION) :
283	echo "<div class=\"wrap\">\n";
284	echo "<h2>Upgrading FeedWordPress...</h2>";
285
286	$feedwordpress = new FeedWordPress;
287	$feedwordpress->upgrade_database($ver);
288	echo "<p><strong>Done!</strong> Upgraded database to version ".FEEDWORDPRESS_VERSION.".</p>\n";
289	echo "<form action=\"\" method=\"get\">\n";
290	echo "<div class=\"submit\"><input type=\"hidden\" name=\"page\" value=\"syndication.php\" />";
291	echo "<input type=\"submit\" value=\"Continue »\" /></form></div>\n";
292	echo "</div>\n";
293	return;
294	else :
295	echo "<div class=\"updated\"><p>Already at version ".FEEDWORDPRESS_VERSION."!</p></div>";
296	endif;
297	endif;
298	?>
299	<div class="wrap">
300	<h2>Upgrade FeedWordPress</h2>
301
302	<p>It appears that you have installed FeedWordPress
303	<?php echo FEEDWORDPRESS_VERSION; ?> as an upgrade to an existing installation of
304	FeedWordPress. That's no problem, but you will need to take a minute out first
305	to upgrade your database: some necessary changes in how the software keeps
306	track of posts and feeds will cause problems such as duplicate posts and broken
307	templates if we were to continue without the upgrade.</p>
308
309	<p>Note that most of FeedWordPress's functionality is temporarily disabled
310	until we have successfully completed the upgrade. Everything should begin
311	working as normal again once the upgrade is complete. There's extraordinarily
312	little chance of any damage as the result of the upgrade, but if you're paranoid
313	like me you may want to back up your database before you proceed.</p>
314
315	<p>This may take several minutes for a large installation.</p>
316
317	<form action="" method="post">
318	<?php FeedWordPressCompatibility::stamp_nonce('feedwordpress_upgrade'); ?>
319	<div class="submit"><input type="submit" name="action" value="Upgrade" /></div>
320	</form>
321	</div>
322	<?php
323	} // function fwp_upgrade_page ()
324
325