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xSpeed Cache: AI-Powered Performance Hub with MCP, Caching & CDN / 1.3.3
xSpeed Cache: AI-Powered Performance Hub with MCP, Caching & CDN v1.3.3
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← All changes | uninstall.php +180 -7 1.0.71.3.3 View file →
@@ -14,11 +14,131 @@
14 14 /**
15 15 * Run all uninstall cleanup. Wrapped in a function so locals don't pollute global scope.
16 16 */
17 17 function xspeed_uninstall_cleanup() {
18 + /*
19 + * Everything here is ours to delete. `wpdeveloper_xspeed_offer` is NOT — it
20 + * is the site's answer about whether it wants this plugin, written by
21 + * whichever WPDeveloper plugin offered it. Removing xSpeed is itself an
22 + * answer — the siblings read it as one, from that row plus the absent plugin
23 + * files. Deleting it here would make every one of them offer xSpeed again to
24 + * the user who just took it off.
25 + * See docs/guides/installing-from-another-plugin.md.
26 + */
18 27 delete_option( 'xspeed_options' );
28 +
29 + /*
30 + * Per-module rows, for the modules THIS plugin ships. The slugs are read
31 + * out of the module files rather than kept as a list here, so a module
32 + * added later cannot leave its row behind; and only Free's, because
33 + * xspeed-pro keeps its own rows under the same prefix and a Free uninstall
34 + * is not a decision about Pro's settings.
35 + *
36 + * These have to go. The conflict-safe profile writes an explicit `false`
37 + * into every one of them when another plugin owns the page cache, and
38 + * seeding on the next install only fills ABSENT keys — so a row that
39 + * survived uninstall kept every switch off on a site that had since been
40 + * cleared, with no way back but the dashboard (PR #295 review).
41 + */
42 + foreach ( glob( __DIR__ . '/includes/modules/*/*Module.php' ) ?: array() as $module_file ) {
43 + $source = @file_get_contents( $module_file ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents -- own plugin file, uninstall.
44 + if ( is_string( $source ) && preg_match( "/const\s+SLUG\s*=\s*'([^']+)'/", $source, $m ) ) {
45 + delete_option( 'xspeed_module_' . $m[1] );
46 + }
47 + }
48 + delete_option( 'xspeed_data_version' );
49 + delete_option( 'xspeed_activity_log' );
50 + delete_option( 'xspeed_server_type' );
51 + delete_option( 'xspeed_oc_dropin_synced' );
52 + delete_option( 'xspeed_oc_generation' );
53 + delete_option( 'xspeed_oc_sync_attempts' );
54 + delete_option( 'xspeed_overridden_constants' );
55 + delete_option( 'xspeed_last_mobile_separate' );
56 + delete_option( 'xspeed_redirect_to_onboarding' );
57 + delete_option( 'xspeed_onboarding_complete' );
58 + // Provenance a host plugin wrote before it activated us, and the profile
59 + // that install came up with.
60 + delete_option( 'xspeed_installed_by' );
61 + delete_option( 'xspeed_installer' );
62 + delete_option( 'xspeed_install_profile' );
63 + // Written by the copy-vendored Setup that host plugins used to carry
64 + // before xSpeed seeded its own conflict-safe profile on activation. We no
65 + // longer write it; an older host may have, and it is ours to clean up.
66 + delete_option( 'xspeed_setup_snapshot' );
19 67 delete_option( 'xspeed_stats' );
68 + delete_option( 'xspeed_gc_cursor' );
69 + wp_clear_scheduled_hook( 'xspeed_gc' );
20 70
71 + global $wpdb;
72 +
73 + // Hit counters and the Hub attachment flag — ours, and simply never named
74 + // here before. xspeed_hit_buffer is BOTH an option and a transient of the
75 + // same name (Hit_Counter uses one string for the memory buffer and the
76 + // durable counter), so both stores need clearing.
77 + delete_option( 'xspeed_hit_buffer' );
78 + delete_transient( 'xspeed_hit_buffer' );
79 + delete_option( 'xspeed_hit_daily' );
80 + delete_option( 'xspeed_hub_site_attached' );
81 +
82 + // Usage-tracking state, which lives in the shared WP Insights rows rather
83 + // than under our own prefix. Left behind, the consent key survives an
84 + // uninstall: a REINSTALL then reads as already opted in before the wizard
85 + // has asked anything, and a later deactivation posts a diagnostic payload
86 + // for a consent this install never collected (#439).
87 + //
88 + // The two keyed rows are SHARED with sibling WPDeveloper plugins, so only
89 + // our own key comes out and the row itself is deleted only once nothing
90 + // else is using it. Deleting them outright would wipe another plugin's
91 + // consent state.
92 + foreach ( array( 'wpins_allow_tracking', 'wpins_last_track_time' ) as $shared ) {
93 + $value = get_option( $shared );
94 + if ( ! is_array( $value ) ) {
95 + continue; // Absent, or a shape we did not write — leave it alone.
96 + }
97 + unset( $value['xspeed'] );
98 + if ( empty( $value ) ) {
99 + delete_option( $shared );
100 + } else {
101 + update_option( $shared, $value );
102 + }
103 + }
104 + // The deactivation-feedback payload. Normally consumed-then-deleted by the
105 + // tracker's own deactivation send, but that only happens when consent
106 + // passes and the send succeeds — a user who deactivates without consent
107 + // leaves both rows behind, and they are exactly the orphaned diagnostic
108 + // payload #439 describes.
109 + delete_option( 'wpins_deactivation_reason_xspeed' );
110 + delete_option( 'wpins_deactivation_details_xspeed' );
111 + // The tracker's recurring send. Cleared on opt-out, but nothing guarantees
112 + // an opt-out ever happened before the uninstall.
113 + wp_clear_scheduled_hook( 'xspeed_do_weekly_action' );
114 + // Our own WP Insights rows: the site id, the original URL, and the last
115 + // payload — whose name embeds the site id. The payload names are
116 + // derivable from the id, but a failed earlier uninstall or a renamed row
117 + // shape would strand them, so sweep the prefix. `xspeed-pro`'s rows
118 + // survive this only because its slug's HYPHEN doesn't match the
119 + // underscore in `wpins_xspeed_%` — that separator is load-bearing.
120 + delete_option( 'wpins_xspeed_site_id' );
121 + delete_option( 'wpins_xspeed_original_url' );
122 + // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- options API has no prefix delete; uninstall only.
123 + $wpins_rows = $wpdb->get_col(
124 + $wpdb->prepare(
125 + "SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE %s",
126 + $wpdb->esc_like( 'wpins_xspeed_' ) . '%'
127 + )
128 + );
129 + foreach ( (array) $wpins_rows as $wpins_row ) {
130 + delete_option( $wpins_row );
131 + }
132 +
133 + // Score history — the plugin's own table, plus the legacy option the
134 + // table was migrated from (kept on upgrade so a bad migration is
135 + // recoverable; there is nothing to recover on uninstall).
136 + // phpcs:ignore WordPress.DB.DirectDatabaseQuery, WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- own table, uninstall.
137 + $wpdb->query( 'DROP TABLE IF EXISTS ' . $wpdb->prefix . 'xspeed_scores' );
138 + delete_option( 'xspeed_score_schema' );
139 + delete_option( 'xspeed_score_history' );
140 +
21 141 if ( ! function_exists( 'WP_Filesystem' ) ) {
22 142 require_once ABSPATH . 'wp-admin/includes/file.php';
23 143 }
24 144 WP_Filesystem();
@@ -72,21 +192,74 @@
72 192 }
73 193 insert_with_markers( $htaccess, 'xSpeed Static Cache', array() );
74 194 }
75 195
76 - $drop_in = WP_CONTENT_DIR . '/advanced-cache.php';
196 + // Serialize the shared drop-in/config teardown with Cache::toggle(). If
197 + // the lock is unavailable, leave shared state and its receipt untouched.
198 + // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_fopen,WordPress.PHP.NoSilencedErrors.Discouraged -- flock requires a local handle; failure is fail-closed.
199 + $ownership_lock = @fopen( WP_CONTENT_DIR . '/.xspeed-page-cache.lock', 'c+' );
200 + if ( ! is_resource( $ownership_lock ) || ! flock( $ownership_lock, LOCK_EX ) ) {
201 + return;
202 + }
203 +
204 + require_once __DIR__ . '/includes/wp-cache-constant.php';
205 + $drop_in = WP_CONTENT_DIR . '/advanced-cache.php';
206 + $dropin_ours = false;
77 207 if ( $wp_filesystem->exists( $drop_in ) ) {
78 - $contents = $wp_filesystem->get_contents( $drop_in );
79 - if ( is_string( $contents ) && false !== strpos( $contents, 'XSPEED_DROPIN' ) ) {
208 + $contents = $wp_filesystem->get_contents( $drop_in );
209 + $dropin_ours = is_string( $contents ) && xspeed_has_canonical_dropin_signature( $contents );
210 + if ( $dropin_ours ) {
80 211 $wp_filesystem->delete( $drop_in );
81 212 }
82 213 }
83 214
84 - $wp_config = ABSPATH . 'wp-config.php';
85 - if ( defined( 'WP_CACHE' ) && WP_CACHE && $wp_filesystem->is_writable( $wp_config ) ) {
215 + $wp_config = file_exists( ABSPATH . 'wp-config.php' ) ? ABSPATH . 'wp-config.php' : dirname( ABSPATH ) . '/wp-config.php';
216 + // `defined()` alone, not `&& WP_CACHE`: the old truthiness test skipped
217 + // the removal whenever the constant was false/0 — exactly the orphan we
218 + // are here to clean up — while still entering it for TRUE/1, where the
219 + // hardcoded-lowercase regex then matched nothing and reported success.
220 + // Strip whatever spelling is there. (#9)
221 + //
222 + // Gated on the drop-in being ours: if another caching plugin holds
223 + // advanced-cache.php, WP_CACHE is the switch that loads THEIR file, and
224 + // stripping it on our way out would silently disable their page cache.
225 + if ( $wp_filesystem->is_writable( $wp_config ) ) {
86 226 $config = $wp_filesystem->get_contents( $wp_config );
87 227 if ( is_string( $config ) ) {
88 - $config = preg_replace( "/define\\(\\s*['\"]WP_CACHE['\"]\\s*,\\s*true\\s*\\);\\s*\\n?/", '', $config );
89 - $wp_filesystem->put_contents( $wp_config, $config, FS_CHMOD_FILE );
228 + // Same helper Cache::set_wp_cache_constant() uses — one pattern,
229 + // one place. uninstall.php loads no plugin classes, hence a
230 + // plain requirable function rather than a method.
231 + require_once __DIR__ . '/includes/wp-cache-constant.php';
232 + $receipt = get_option( 'xspeed_page_cache_ownership_receipt', '' );
233 + $marked = xspeed_wp_cache_receipt_matches( $config, $receipt );
234 + /*
235 + * A receipt proves WE wrote the line; it does not prove the line
236 + * is still ours to remove. If a competitor has since taken over
237 + * advanced-cache.php, WP_CACHE is what loads THEIR drop-in — they
238 + * had no reason to touch an already-true define, so our receipt
239 + * comment is still sitting beside it. Stripping on the receipt
240 + * alone silently stopped their live page cache.
241 + *
242 + * A foreign drop-in therefore vetoes the removal outright, which
243 + * is the same rule Cache::set_wp_cache_constant() applies in the
244 + * running plugin; only this path was missing it. `$dropin_ours`
245 + * covers the file we just deleted, `$marked` the case where there
246 + * is no drop-in left at all.
247 + */
248 + $foreign_dropin = $wp_filesystem->exists( $drop_in ) && ! $dropin_ours;
249 + if ( ! $foreign_dropin && ( $dropin_ours || $marked ) ) {
250 + $config = xspeed_strip_wp_cache_define( $config );
251 + $wp_filesystem->put_contents( $wp_config, $config, FS_CHMOD_FILE );
252 + }
90 253 }
91 254 }
255 + delete_option( 'xspeed_page_cache_ownership_receipt' );
256 + flock( $ownership_lock, LOCK_UN );
257 + fclose( $ownership_lock );
258 + // Our own lock file, left in wp-content after everything else of ours is
259 + // gone. Deleted last, after the handle is closed, so we are not
260 + // unlinking a lock we are still inside. That ordering is hygiene, not a
261 + // guarantee: a request already past the fopen would hold a handle to an
262 + // unlinked inode. Harmless here — by this point the plugin is being
263 + // removed and nothing will take the lock again.
264 + $wp_filesystem->delete( WP_CONTENT_DIR . '/.xspeed-page-cache.lock' );
92 265 }