~canonical-sysadmins/wordpress/4.7.2

trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );

120

$response = wp_remote_post( $http_url, $options );

121

}

122

123

if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) )

124

return false;

125

126

$body = trim( wp_remote_retrieve_body( $response ) );

127

$body = json_decode( $body, true );

128

129

if ( ! is_array( $body ) || ! isset( $body['offers'] ) )

130

return false;

131

132

$offers = $body['offers'];

133

134

foreach ( $offers as &$offer ) {

135

foreach ( $offer as $offer_key => $value ) {

136

if ( 'packages' == $offer_key )

137

$offer['packages'] = (object) array_intersect_key( array_map( 'esc_url', $offer['packages'] ),

138

array_fill_keys( array( 'full', 'no_content', 'new_bundled', 'partial', 'rollback' ), '' ) );

139

elseif ( 'download' == $offer_key )

140

$offer['download'] = esc_url( $value );

141

else

142

$offer[ $offer_key ] = esc_html( $value );

143

}

144

$offer = (object) array_intersect_key( $offer, array_fill_keys( array( 'response', 'download', 'locale',

145

'packages', 'current', 'version', 'php_version', 'mysql_version', 'new_bundled', 'partial_version', 'notify_email', 'support_email' ), '' ) );

146

}

147

148

$updates = new stdClass();

149

$updates->updates = $offers;

150

$updates->last_checked = time();

151

$updates->version_checked = $wp_version;

152

153

if ( isset( $body['translations'] ) )

154

$updates->translations = $body['translations'];

155

156

set_site_transient( 'update_core', $updates );

157

158

if ( ! empty( $body['ttl'] ) ) {

159

$ttl = (int) $body['ttl'];

160

if ( $ttl && ( time() + $ttl < wp_next_scheduled( 'wp_version_check' ) ) ) {

161

// Queue an event to re-run the update check in $ttl seconds.

162

wp_schedule_single_event( time() + $ttl, 'wp_version_check' );

163

}

164

}

165

166

// Trigger a background updates check if running non-interactively, and we weren't called from the update handler.

167

if ( defined( 'DOING_CRON' ) && DOING_CRON && ! doing_action( 'wp_maybe_auto_update' ) ) {

168

do_action( 'wp_maybe_auto_update' );

169

}

170

}

171

172

/**

173

* Check plugin versions against the latest versions hosted on WordPress.org.

174

175

* The WordPress version, PHP version, and Locale is sent along with a list of

176

* all plugins installed. Checks against the WordPress server at

177

* api.wordpress.org. Will only check if WordPress isn't installing.

178

179

* @since 2.3.0

180

* @uses $wp_version Used to notify the WordPress version.

181

182

* @param array $extra_stats Extra statistics to report to the WordPress.org API.

183

* @return mixed Returns null if update is unsupported. Returns false if check is too soon.

184

185

function wp_update_plugins( $extra_stats = array() ) {

186

include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version

187

188

if ( defined('WP_INSTALLING') )

189

return false;

190

191

// If running blog-side, bail unless we've not checked in the last 12 hours

192

if ( !function_exists( 'get_plugins' ) )

193

require_once( ABSPATH . 'wp-admin/includes/plugin.php' );

194

195

$plugins = get_plugins();

196

$translations = wp_get_installed_translations( 'plugins' );

197

198

$active = get_option( 'active_plugins', array() );

199

$current = get_site_transient( 'update_plugins' );

200

if ( ! is_object($current) )

201

$current = new stdClass;

202

203

$new_option = new stdClass;

204

$new_option->last_checked = time();

205

206

// Check for update on a different schedule, depending on the page.

207

switch ( current_filter() ) {

208

case 'upgrader_process_complete' :

209

$timeout = 0;

210

break;

211

case 'load-update-core.php' :

212

$timeout = MINUTE_IN_SECONDS;

213

break;

214

case 'load-plugins.php' :

215

case 'load-update.php' :

216

$timeout = HOUR_IN_SECONDS;

217

break;

218

default :

219

if ( defined( 'DOING_CRON' ) && DOING_CRON ) {

220

$timeout = 0;

221

} else {

222

$timeout = 12 * HOUR_IN_SECONDS;

223

}

224

}

225

226

$time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );

227

228

if ( $time_not_changed && ! $extra_stats ) {

229

$plugin_changed = false;

230

foreach ( $plugins as $file => $p ) {

231

$new_option->checked[ $file ] = $p['Version'];

232

233

if ( !isset( $current->checked[ $file ] ) || strval($current->checked[ $file ]) !== strval($p['Version']) )

234

$plugin_changed = true;

235

}

236

237

if ( isset ( $current->response ) && is_array( $current->response ) ) {

238

foreach ( $current->response as $plugin_file => $update_details ) {

239

if ( ! isset($plugins[ $plugin_file ]) ) {

240

$plugin_changed = true;

241

break;

242

}

243

}

244

}

245

246

// Bail if we've checked recently and if nothing has changed

247

if ( ! $plugin_changed )

248

return false;

249

}

250

251

// Update last_checked for current to prevent multiple blocking requests if request hangs

252

$current->last_checked = time();

253

set_site_transient( 'update_plugins', $current );

254

255

$to_send = compact( 'plugins', 'active' );

256

257

$locales = array( get_locale() );

258

/**

259

* Filter the locales requested for plugin translations.

260

261

* @since 3.7.0

262

263

* @param array $locales Plugin locale. Default is current locale of the site.

264

265

$locales = apply_filters( 'plugins_update_check_locales', $locales );

266

267

if ( defined( 'DOING_CRON' ) && DOING_CRON ) {

268

$timeout = 30;

269

} else {

270

// Three seconds, plus one extra second for every 10 plugins

271

$timeout = 3 + (int) ( count( $plugins ) / 10 );

272

}

273

274

$options = array(

275

'timeout' => $timeout,

276

'body' => array(

277

'plugins' => json_encode( $to_send ),

278

'translations' => json_encode( $translations ),

279

'locale' => json_encode( $locales ),

280

'all' => json_encode( true ),

281

282

'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )

283

);

284

285

if ( $extra_stats ) {

286

$options['body']['update_stats'] = json_encode( $extra_stats );

287

}

288

289

$url = $http_url = 'http://api.wordpress.org/plugins/update-check/1.1/';

290

if ( $ssl = wp_http_supports( array( 'ssl' ) ) )

291

$url = set_url_scheme( $url, 'https' );

292

293

$raw_response = wp_remote_post( $url, $options );

294

if ( $ssl && is_wp_error( $raw_response ) ) {

295

296

$raw_response = wp_remote_post( $http_url, $options );

297

}

298

299

if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) )

300

return false;

301

302

$response = json_decode( wp_remote_retrieve_body( $raw_response ), true );

303

foreach ( $response['plugins'] as &$plugin ) {

304

$plugin = (object) $plugin;

305

}

306

unset( $plugin );

307

foreach ( $response['no_update'] as &$plugin ) {

308

$plugin = (object) $plugin;

309

}

310

unset( $plugin );

311

312

if ( is_array( $response ) ) {

313

$new_option->response = $response['plugins'];

314

$new_option->translations = $response['translations'];

315

// TODO: Perhaps better to store no_update in a separate transient with an expiry?

316

$new_option->no_update = $response['no_update'];

317

} else {

318

$new_option->response = array();

319

$new_option->translations = array();

320

$new_option->no_update = array();

321

}

322

323

set_site_transient( 'update_plugins', $new_option );

324

}

325

326

/**

327

* Check theme versions against the latest versions hosted on WordPress.org.

328

329

* A list of all themes installed in sent to WP. Checks against the

330

* WordPress server at api.wordpress.org. Will only check if WordPress isn't

331

* installing.

332

333

* @since 2.7.0

334

* @uses $wp_version Used to notify the WordPress version.

335

336

* @param array $extra_stats Extra statistics to report to the WordPress.org API.

337

* @return mixed Returns null if update is unsupported. Returns false if check is too soon.

338

339

function wp_update_themes( $extra_stats = array() ) {

340

include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version

341

342

if ( defined( 'WP_INSTALLING' ) )

343

return false;

344

345

$installed_themes = wp_get_themes();

346

$translations = wp_get_installed_translations( 'themes' );

347

348

$last_update = get_site_transient( 'update_themes' );

349

if ( ! is_object($last_update) )

350

$last_update = new stdClass;

351

352

$themes = $checked = $request = array();

353

354

// Put slug of current theme into request.

355

$request['active'] = get_option( 'stylesheet' );

356

357

foreach ( $installed_themes as $theme ) {

358

$checked[ $theme->get_stylesheet() ] = $theme->get('Version');

359

360

$themes[ $theme->get_stylesheet() ] = array(

361

'Name' => $theme->get('Name'),

362

'Title' => $theme->get('Name'),

363

'Version' => $theme->get('Version'),

364

'Author' => $theme->get('Author'),

365

'Author URI' => $theme->get('AuthorURI'),

366

'Template' => $theme->get_template(),

367

'Stylesheet' => $theme->get_stylesheet(),

368

);

369

}

370

371

// Check for update on a different schedule, depending on the page.

372

switch ( current_filter() ) {

373

case 'upgrader_process_complete' :

374

$timeout = 0;

375

break;

376

case 'load-update-core.php' :

377

$timeout = MINUTE_IN_SECONDS;

378

break;

379

case 'load-themes.php' :

380

case 'load-update.php' :

381

$timeout = HOUR_IN_SECONDS;

382

break;

383

default :

384

if ( defined( 'DOING_CRON' ) && DOING_CRON ) {

385

$timeout = 0;

386

} else {

387

$timeout = 12 * HOUR_IN_SECONDS;

388

}

389

}

390

391

$time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time() - $last_update->last_checked );

392

393

if ( $time_not_changed && ! $extra_stats ) {

394

$theme_changed = false;

395

foreach ( $checked as $slug => $v ) {

396

if ( !isset( $last_update->checked[ $slug ] ) || strval($last_update->checked[ $slug ]) !== strval($v) )

397

$theme_changed = true;

398

}

399

400

if ( isset ( $last_update->response ) && is_array( $last_update->response ) ) {

401

foreach ( $last_update->response as $slug => $update_details ) {

402

if ( ! isset($checked[ $slug ]) ) {

403

$theme_changed = true;

404

break;

405

}

406

}

407

}

408

409

// Bail if we've checked recently and if nothing has changed

410

if ( ! $theme_changed )

411

return false;

412

}

413

414

// Update last_checked for current to prevent multiple blocking requests if request hangs

415

$last_update->last_checked = time();

416

set_site_transient( 'update_themes', $last_update );

417

418

$request['themes'] = $themes;

419

420

$locales = array( get_locale() );

421

/**

422

* Filter the locales requested for theme translations.

423

424

* @since 3.7.0

425

426

* @param array $locales Theme locale. Default is current locale of the site.

427

428

$locales = apply_filters( 'themes_update_check_locales', $locales );

429

430

if ( defined( 'DOING_CRON' ) && DOING_CRON ) {

431

$timeout = 30;

432

} else {

433

// Three seconds, plus one extra second for every 10 themes

434

$timeout = 3 + (int) ( count( $themes ) / 10 );

435

}

436

437

$options = array(

438

'timeout' => $timeout,

439

'body' => array(

440

'themes' => json_encode( $request ),

441

'translations' => json_encode( $translations ),

442

'locale' => json_encode( $locales ),

443

444

'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )

445

);

446

447

if ( $extra_stats ) {

448

$options['body']['update_stats'] = json_encode( $extra_stats );

449

}

450

451

$url = $http_url = 'http://api.wordpress.org/themes/update-check/1.1/';

452

if ( $ssl = wp_http_supports( array( 'ssl' ) ) )

453

$url = set_url_scheme( $url, 'https' );

454

455

$raw_response = wp_remote_post( $url, $options );

456

if ( $ssl && is_wp_error( $raw_response ) ) {

457

458

$raw_response = wp_remote_post( $http_url, $options );

459

}

460

461

if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) )

462

return false;

463

464

$new_update = new stdClass;

465

$new_update->last_checked = time();

466

$new_update->checked = $checked;

467

468

$response = json_decode( wp_remote_retrieve_body( $raw_response ), true );

469

470

if ( is_array( $response ) ) {

471

$new_update->response = $response['themes'];

472

$new_update->translations = $response['translations'];

473

}

474

475

set_site_transient( 'update_themes', $new_update );

476

}

477

478

/**

479

* Performs WordPress automatic background updates.

480

481

* @since 3.7.0

482

483

function wp_maybe_auto_update() {

484

include_once( ABSPATH . '/wp-admin/includes/admin.php' );

485

include_once( ABSPATH . '/wp-admin/includes/class-wp-upgrader.php' );

486

487

$upgrader = new WP_Automatic_Updater;

488

$upgrader->run();

489

}

490

491

/**

492

* Retrieves a list of all language updates available.

493

494

* @since 3.7.0

495

496

function wp_get_translation_updates() {

497

$updates = array();

498

$transients = array( 'update_core' => 'core', 'update_plugins' => 'plugin', 'update_themes' => 'theme' );

499

foreach ( $transients as $transient => $type ) {

500

501

$transient = get_site_transient( $transient );

502

if ( empty( $transient->translations ) )

503

continue;

504

505

foreach ( $transient->translations as $translation ) {

506

$updates[] = (object) $translation;

507

}

508

}

509

510

return $updates;

511

}

512

513

/**

514

* Collect counts and UI strings for available updates

515

516

* @since 3.3.0

517

518

* @return array

519

520

function wp_get_update_data() {

521

$counts = array( 'plugins' => 0, 'themes' => 0, 'wordpress' => 0, 'translations' => 0 );

522

523

if ( $plugins = current_user_can( 'update_plugins' ) ) {

524

$update_plugins = get_site_transient( 'update_plugins' );

525

if ( ! empty( $update_plugins->response ) )

526

$counts['plugins'] = count( $update_plugins->response );

527

}

528

529

if ( $themes = current_user_can( 'update_themes' ) ) {

530

$update_themes = get_site_transient( 'update_themes' );

531

if ( ! empty( $update_themes->response ) )

532

$counts['themes'] = count( $update_themes->response );

533

}

534

535

if ( ( $core = current_user_can( 'update_core' ) ) && function_exists( 'get_core_updates' ) ) {

536

$update_wordpress = get_core_updates( array('dismissed' => false) );

537

if ( ! empty( $update_wordpress ) && ! in_array( $update_wordpress[0]->response, array('development', 'latest') ) && current_user_can('update_core') )

538

$counts['wordpress'] = 1;

539

}

540

541

if ( ( $core || $plugins || $themes ) && wp_get_translation_updates() )

542

$counts['translations'] = 1;

543

544

$counts['total'] = $counts['plugins'] + $counts['themes'] + $counts['wordpress'] + $counts['translations'];

545

$titles = array();

546

if ( $counts['wordpress'] )

547

$titles['wordpress'] = sprintf( __( '%d WordPress Update'), $counts['wordpress'] );

548

if ( $counts['plugins'] )

549

$titles['plugins'] = sprintf( _n( '%d Plugin Update', '%d Plugin Updates', $counts['plugins'] ), $counts['plugins'] );

550

if ( $counts['themes'] )

551

$titles['themes'] = sprintf( _n( '%d Theme Update', '%d Theme Updates', $counts['themes'] ), $counts['themes'] );

552

if ( $counts['translations'] )

553

$titles['translations'] = __( 'Translation Updates' );

554

555

$update_title = $titles ? esc_attr( implode( ', ', $titles ) ) : '';

556

557

$update_data = array( 'counts' => $counts, 'title' => $update_title );

558

/**

559

* Filter the returned array of update data for plugins, themes, and WordPress core.

560

561

* @since 3.5.0

562

563

* @param array $update_data {

564

* Fetched update data.

565

566

* @type array $counts An array of counts for available plugin, theme, and WordPress updates.

567

* @type string $update_title Titles of available updates.

568

* }

569

* @param array $titles An array of update counts and UI strings for available updates.

570

571

return apply_filters( 'wp_get_update_data', $update_data, $titles );

572

}

573

574

function _maybe_update_core() {

575

include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version

576

577

$current = get_site_transient( 'update_core' );

578

579

if ( isset( $current->last_checked ) &&

580

12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) &&

581

isset( $current->version_checked ) &&

582

$current->version_checked == $wp_version )

583

return;

584

585

wp_version_check();

586

}

587

/**

588

* Check the last time plugins were run before checking plugin versions.

589

590

* This might have been backported to WordPress 2.6.1 for performance reasons.

591

* This is used for the wp-admin to check only so often instead of every page

592

* load.

593

594

* @since 2.7.0

595

* @access private

596

597

function _maybe_update_plugins() {

598

$current = get_site_transient( 'update_plugins' );

599

if ( isset( $current->last_checked ) && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) )

600

return;

601

wp_update_plugins();

602

}

603

604

/**

605

* Check themes versions only after a duration of time.

606

607

* This is for performance reasons to make sure that on the theme version

608

* checker is not run on every page load.

609

610

* @since 2.7.0

611

* @access private

612

613

function _maybe_update_themes() {

614

$current = get_site_transient( 'update_themes' );

615

if ( isset( $current->last_checked ) && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) )

616

return;

617

618

wp_update_themes();

619

}

620

621

/**

622

* Schedule core, theme, and plugin update checks.

623

624

* @since 3.1.0

625

626

function wp_schedule_update_checks() {

627

if ( !wp_next_scheduled('wp_version_check') && !defined('WP_INSTALLING') )

628

wp_schedule_event(time(), 'twicedaily', 'wp_version_check');

629

630

if ( !wp_next_scheduled('wp_update_plugins') && !defined('WP_INSTALLING') )

631

wp_schedule_event(time(), 'twicedaily', 'wp_update_plugins');

632

633

if ( !wp_next_scheduled('wp_update_themes') && !defined('WP_INSTALLING') )

634

wp_schedule_event(time(), 'twicedaily', 'wp_update_themes');

635

636

if ( ! wp_next_scheduled( 'wp_maybe_auto_update' ) && ! defined( 'WP_INSTALLING' ) ) {

637

// Schedule auto updates for 7 a.m. and 7 p.m. in the timezone of the site.

638

$next = strtotime( 'today 7am' );

639

$now = time();

640

// Find the next instance of 7 a.m. or 7 p.m., but skip it if it is within 3 hours from now.

641

while ( ( $now + 3 * HOUR_IN_SECONDS ) > $next ) {

642

$next += 12 * HOUR_IN_SECONDS;

643

}

644

$next = $next - get_option( 'gmt_offset' ) * HOUR_IN_SECONDS;

645

// Add a random number of minutes, so we don't have all sites trying to update exactly on the hour

646

$next = $next + rand( 0, 59 ) * MINUTE_IN_SECONDS;

647

wp_schedule_event( $next, 'twicedaily', 'wp_maybe_auto_update' );

648

}

649

}

650

651

if ( ( ! is_main_site() && ! is_network_admin() ) || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) )

652

return;

653

654

add_action( 'admin_init', '_maybe_update_core' );

655

add_action( 'wp_version_check', 'wp_version_check' );

656

add_action( 'upgrader_process_complete', 'wp_version_check', 10, 0 );

657

658

add_action( 'load-plugins.php', 'wp_update_plugins' );

659

add_action( 'load-update.php', 'wp_update_plugins' );

660

add_action( 'load-update-core.php', 'wp_update_plugins' );

661

add_action( 'admin_init', '_maybe_update_plugins' );

662

add_action( 'wp_update_plugins', 'wp_update_plugins' );

663

add_action( 'upgrader_process_complete', 'wp_update_plugins', 10, 0 );

664

665

add_action( 'load-themes.php', 'wp_update_themes' );

666

add_action( 'load-update.php', 'wp_update_themes' );

667

add_action( 'load-update-core.php', 'wp_update_themes' );

668

add_action( 'admin_init', '_maybe_update_themes' );

669

add_action( 'wp_update_themes', 'wp_update_themes' );

670

add_action( 'upgrader_process_complete', 'wp_update_themes', 10, 0 );

671

672

add_action( 'wp_maybe_auto_update', 'wp_maybe_auto_update' );

673

674

add_action('init', 'wp_schedule_update_checks');

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