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817 lines (743 loc) · 22.8 KB
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<?php
use WP_CLI\Traverser\RecursiveDataStructureTraverser;
use WP_CLI\Utils;
/**
* Adds, gets, and deletes entries in the WordPress Transient Cache.
*
* By default, the transient cache uses the WordPress database to persist values
* between requests. On a single site installation, values are stored in the
* `wp_options` table. On a multisite installation, values are stored in the
* `wp_options` or the `wp_sitemeta` table, depending on use of the `--network`
* flag.
*
* When a persistent object cache drop-in is installed (e.g. Redis or Memcached),
* the transient cache skips the database and simply wraps the WP Object Cache.
*
* ## EXAMPLES
*
* # Set transient.
* $ wp transient set sample_key "test data" 3600
* Success: Transient added.
*
* # Get transient.
* $ wp transient get sample_key
* test data
*
* # Delete transient.
* $ wp transient delete sample_key
* Success: Transient deleted.
*
* # Delete expired transients.
* $ wp transient delete --expired
* Success: 12 expired transients deleted from the database.
*
* # Delete all transients.
* $ wp transient delete --all
* Success: 14 transients deleted from the database.
*
* # Delete all site transients.
* $ wp transient delete --all --network
* Success: 2 transients deleted from the database.
*/
class Transient_Command extends WP_CLI_Command {
/**
* Gets a transient value.
*
* For a more complete explanation of the transient cache, including the
* network|site cache, please see docs for `wp transient`.
*
* ## OPTIONS
*
* <key>
* : Key for the transient.
*
* [--format=<format>]
* : Render output in a particular format.
* ---
* default: table
* options:
* - table
* - csv
* - json
* - yaml
* ---
*
* [--network]
* : Get the value of a network|site transient. On single site, this is
* a specially-named cache key. On multisite, this is a global cache
* (instead of local to the site).
*
* ## EXAMPLES
*
* $ wp transient get sample_key
* test data
*
* $ wp transient get random_key
* Warning: Transient with key "random_key" is not set.
*
* @param array{string} $args Positional arguments.
* @param array{format: string} $assoc_args Associative arguments.
*/
public function get( $args, $assoc_args ) {
list( $key ) = $args;
$func = Utils\get_flag_value( $assoc_args, 'network' ) ? 'get_site_transient' : 'get_transient';
$value = $func( $key );
if ( false === $value ) {
WP_CLI::warning( 'Transient with key "' . $key . '" is not set.' );
exit;
}
WP_CLI::print_value( $value, $assoc_args );
}
/**
* Sets a transient value.
*
* `<expiration>` is the time until expiration, in seconds.
*
* For a more complete explanation of the transient cache, including the
* network|site cache, please see docs for `wp transient`.
*
* ## OPTIONS
*
* <key>
* : Key for the transient.
*
* <value>
* : Value to be set for the transient.
*
* [<expiration>]
* : Time until expiration, in seconds.
*
* [--network]
* : Set the value of a network|site transient. On single site, this is
* a specially-named cache key. On multisite, this is a global cache
* (instead of local to the site).
*
* ## EXAMPLES
*
* $ wp transient set sample_key "test data" 3600
* Success: Transient added.
*
* @param array{0: string, 1: string, 2?: string} $args Positional arguments.
* @param array{network?: bool} $assoc_args Associative arguments.
*/
public function set( $args, $assoc_args ) {
list( $key, $value ) = $args;
$expiration = $args[2] ?? 0;
$func = Utils\get_flag_value( $assoc_args, 'network' ) ? 'set_site_transient' : 'set_transient';
if ( $func( $key, $value, (int) $expiration ) ) {
WP_CLI::success( 'Transient added.' );
} else {
WP_CLI::error( 'Transient could not be set.' );
}
}
/**
* Deletes a transient value.
*
* For a more complete explanation of the transient cache, including the
* network|site cache, please see docs for `wp transient`.
*
* ## OPTIONS
*
* [<key>]
* : Key for the transient.
*
* [--network]
* : Delete the value of a network|site transient. On single site, this is
* a specially-named cache key. On multisite, this is a global cache
* (instead of local to the site).
*
* [--all]
* : Delete all transients.
*
* [--expired]
* : Delete all expired transients.
*
* ## EXAMPLES
*
* # Delete transient.
* $ wp transient delete sample_key
* Success: Transient deleted.
*
* # Delete expired transients.
* $ wp transient delete --expired
* Success: 12 expired transients deleted from the database.
*
* # Delete expired site transients.
* $ wp transient delete --expired --network
* Success: 1 expired transient deleted from the database.
*
* # Delete all transients.
* $ wp transient delete --all
* Success: 14 transients deleted from the database.
*
* # Delete all site transients.
* $ wp transient delete --all --network
* Success: 2 transients deleted from the database.
*
* # Delete all transients in a multisite.
* $ wp transient delete --all --network && wp site list --field=url | xargs -n1 -I % wp --url=% transient delete --all
*
* @param array{string} $args Positional arguments.
* @param array{network?: bool, all?: bool, expired?: bool} $assoc_args Associative arguments.
*/
public function delete( $args, $assoc_args ) {
$key = ( ! empty( $args ) ) ? $args[0] : null;
$all = Utils\get_flag_value( $assoc_args, 'all', false );
$expired = Utils\get_flag_value( $assoc_args, 'expired', false );
$network = Utils\get_flag_value( $assoc_args, 'network', false );
if ( true === $all ) {
$this->delete_all( $network );
return;
} elseif ( true === $expired ) {
$this->delete_expired( $network );
return;
}
if ( ! $key ) {
WP_CLI::error( 'Please specify transient key, or use --all or --expired.' );
}
$func = $network ? 'delete_site_transient' : 'delete_transient';
if ( $func( $key ) ) {
WP_CLI::success( 'Transient deleted.' );
} else {
$func = Utils\get_flag_value( $assoc_args, 'network' ) ? 'get_site_transient' : 'get_transient';
if ( $func( $key ) ) {
WP_CLI::error( 'Transient was not deleted even though the transient appears to exist.' );
} else {
WP_CLI::warning( 'Transient was not deleted; however, the transient does not appear to exist.' );
}
}
}
/**
* Determines the type of transients implementation.
*
* Indicates whether the transients API is using an object cache or the
* database.
*
* For a more complete explanation of the transient cache, including the
* network|site cache, please see docs for `wp transient`.
*
* ## EXAMPLES
*
* $ wp transient type
* Transients are saved to the database.
*/
public function type() {
if ( wp_using_ext_object_cache() ) {
$message = 'Transients are saved to the object cache.';
} else {
$message = 'Transients are saved to the database.';
}
WP_CLI::line( $message );
}
/**
* Lists transients and their values.
*
* ## OPTIONS
*
* [--search=<pattern>]
* : Use wildcards ( * and ? ) to match transient name.
*
* [--exclude=<pattern>]
* : Pattern to exclude. Use wildcards ( * and ? ) to match transient name.
*
* [--network]
* : Get the values of network|site transients. On single site, this is
* a specially-named cache key. On multisite, this is a global cache
* (instead of local to the site).
*
* [--unserialize]
* : Unserialize transient values in output.
*
* [--human-readable]
* : Human-readable output for expirations.
*
* [--fields=<fields>]
* : Limit the output to specific object fields.
*
* [--format=<format>]
* : The serialization format for the value.
* ---
* default: table
* options:
* - table
* - json
* - csv
* - count
* - yaml
* ---
*
* ## AVAILABLE FIELDS
*
* This field will be displayed by default for each matching option:
*
* * name
* * value
* * expiration
*
* ## EXAMPLES
*
* # List all transients
* $ wp transient list
* +------+-------+---------------+
* | name | value | expiration |
* +------+-------+---------------+
* | foo | bar | 39 mins |
* | foo2 | bar2 | no expiration |
* | foo3 | bar2 | expired |
* | foo4 | bar4 | 4 hours |
* +------+-------+---------------+
*
* @subcommand list
*
* @param string[] $args Positional arguments. Unused.
* @param array{search?: string, exclude?: string, network?: bool, unserialize?: bool, 'human-readable'?: bool, fields?: string, format?: string} $assoc_args Associative arguments.
*/
public function list_( $args, $assoc_args ) {
global $wpdb;
if ( wp_using_ext_object_cache() ) {
WP_CLI::warning( 'Transients are stored in an external object cache, and this command only shows those stored in the database.' );
}
$network = Utils\get_flag_value( $assoc_args, 'network', false );
$unserialize = Utils\get_flag_value( $assoc_args, 'unserialize', false );
$human_readable = Utils\get_flag_value( $assoc_args, 'human-readable', false );
$fields = array( 'name', 'value', 'expiration' );
if ( isset( $assoc_args['fields'] ) ) {
$fields = explode( ',', $assoc_args['fields'] );
}
$pattern = '%';
$exclude = '';
if ( isset( $assoc_args['search'] ) ) {
$pattern = Utils\esc_like( $assoc_args['search'] );
// Substitute wildcards.
$pattern = str_replace(
array( '*', '?' ),
array( '%', '_' ),
$pattern
);
}
if ( isset( $assoc_args['exclude'] ) ) {
$exclude = Utils\esc_like( $assoc_args['exclude'] );
// Substitute wildcards.
$exclude = str_replace(
array( '*', '?' ),
array( '%', '_' ),
$exclude
);
}
if ( $network ) {
if ( is_multisite() ) {
$where = $wpdb->prepare(
'WHERE `meta_key` LIKE %s',
Utils\esc_like( '_site_transient_' ) . $pattern
);
$where .= $wpdb->prepare(
' AND meta_key NOT LIKE %s',
Utils\esc_like( '_site_transient_timeout_' ) . '%'
);
if ( $exclude ) {
$where .= $wpdb->prepare(
' AND meta_key NOT LIKE %s',
Utils\esc_like( '_site_transient_' ) . $exclude
);
}
$query = "SELECT `meta_key` as `name`, `meta_value` as `value` FROM {$wpdb->sitemeta} {$where}";
} else {
$where = $wpdb->prepare(
'WHERE `option_name` LIKE %s',
Utils\esc_like( '_site_transient_' ) . $pattern
);
$where .= $wpdb->prepare(
' AND option_name NOT LIKE %s',
Utils\esc_like( '_site_transient_timeout_' ) . '%'
);
if ( $exclude ) {
$where .= $wpdb->prepare(
' AND option_name NOT LIKE %s',
Utils\esc_like( '_site_transient_' ) . $exclude
);
}
$query = "SELECT `option_name` as `name`, `option_value` as `value` FROM {$wpdb->options} {$where}";
}
} else {
$where = $wpdb->prepare(
'WHERE `option_name` LIKE %s',
Utils\esc_like( '_transient_' ) . $pattern
);
$where .= $wpdb->prepare(
' AND option_name NOT LIKE %s',
Utils\esc_like( '_transient_timeout_' ) . '%'
);
if ( $exclude ) {
$where .= $wpdb->prepare(
' AND option_name NOT LIKE %s',
Utils\esc_like( '_transient_' ) . $exclude
);
}
$query = "SELECT `option_name` as `name`, `option_value` as `value` FROM {$wpdb->options} {$where}";
}
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared -- Prepared properly above.
$results = $wpdb->get_results( $query );
foreach ( $results as $result ) {
$result->name = str_replace( array( '_site_transient_', '_transient_' ), '', $result->name );
$result->expiration = $this->get_transient_expiration( $result->name, $network, $human_readable );
if ( $unserialize ) {
$result->value = maybe_unserialize( $result->value );
}
}
$formatter = new \WP_CLI\Formatter(
$assoc_args,
$fields
);
$formatter->display_items( $results );
}
/**
* Get a nested value from a transient.
*
* ## OPTIONS
*
* <key>
* : Key for the transient.
*
* <key-path>...
* : The name(s) of the keys within the value to locate the value to pluck.
*
* [--format=<format>]
* : The output format of the value.
* ---
* default: plaintext
* options:
* - plaintext
* - json
* - yaml
* ---
*
* [--network]
* : Get the value of a network|site transient. On single site, this is
* a specially-named cache key. On multisite, this is a global cache
* (instead of local to the site).
*
* @param string[] $args Positional arguments.
* @param array{format: string} $assoc_args Associative arguments.
*/
public function pluck( $args, $assoc_args ) {
list( $key ) = $args;
$func = Utils\get_flag_value( $assoc_args, 'network' ) ? 'get_site_transient' : 'get_transient';
$value = $func( $key );
if ( false === $value ) {
WP_CLI::warning( 'Transient with key "' . $key . '" is not set.' );
exit;
}
$key_path = array_map(
function ( $key ) {
if ( is_numeric( $key ) && ( (string) intval( $key ) === $key ) ) {
return (int) $key;
}
return $key;
},
array_slice( $args, 1 )
);
$traverser = new RecursiveDataStructureTraverser( $value );
try {
$value = $traverser->get( $key_path );
} catch ( \Exception $e ) {
die( 1 );
}
WP_CLI::print_value( $value, $assoc_args );
}
/**
* Update a nested value from a transient.
*
* ## OPTIONS
*
* <action>
* : Patch action to perform.
* ---
* options:
* - insert
* - update
* - delete
* ---
*
* <key>
* : Key for the transient.
*
* <key-path>...
* : The name(s) of the keys within the value to locate the value to patch.
*
* [<value>]
* : The new value. If omitted, the value is read from STDIN.
*
* [--format=<format>]
* : The serialization format for the value.
* ---
* default: plaintext
* options:
* - plaintext
* - json
* ---
*
* [--expiration=<expiration>]
* : Time until expiration, in seconds.
* ---
* default: 0
* ---
*
* [--network]
* : Get the value of a network|site transient. On single site, this is
* a specially-named cache key. On multisite, this is a global cache
* (instead of local to the site).
*
* @param string[] $args Positional arguments.
* @param array{format: string} $assoc_args Associative arguments.
*/
public function patch( $args, $assoc_args ) {
list( $action, $key ) = $args;
$expiration = (int) Utils\get_flag_value( $assoc_args, 'expiration', 0 );
$read_func = Utils\get_flag_value( $assoc_args, 'network' ) ? 'get_site_transient' : 'get_transient';
$write_func = Utils\get_flag_value( $assoc_args, 'network' ) ? 'set_site_transient' : 'set_transient';
$key_path = array_map(
function ( $key ) {
if ( is_numeric( $key ) && ( (string) intval( $key ) === $key ) ) {
return (int) $key;
}
return $key;
},
array_slice( $args, 2 )
);
if ( 'delete' === $action ) {
$patch_value = null;
} else {
$stdin_value = Utils\has_stdin()
? trim( WP_CLI::get_value_from_arg_or_stdin( $args, -1 ) )
: null;
if ( ! empty( $stdin_value ) ) {
$patch_value = WP_CLI::read_value( $stdin_value, $assoc_args );
} elseif ( count( $key_path ) > 1 ) {
$patch_value = WP_CLI::read_value( (string) array_pop( $key_path ), $assoc_args );
} else {
$patch_value = null;
}
if ( null === $patch_value ) {
WP_CLI::error( 'Please provide value to update.' );
}
}
/* Need to make a copy of $current_value here as it is modified by reference */
$old_value = $read_func( $key );
$current_value = $old_value;
if ( is_object( $old_value ) ) {
$current_value = clone $old_value;
}
$traverser = new RecursiveDataStructureTraverser( $current_value );
try {
$traverser->$action( $key_path, $patch_value );
} catch ( \Exception $e ) {
WP_CLI::error( $e->getMessage() );
}
$patched_value = $traverser->value();
if ( $patched_value === $old_value ) {
WP_CLI::success( "Value passed for transient '$key' is unchanged." );
} else {
$success = $write_func( $key, $patched_value, $expiration );
if ( $success ) {
WP_CLI::success( "Updated transient '$key'." );
} else {
WP_CLI::error( "Could not update transient '$key'." );
}
}
}
/**
* Retrieves the expiration time.
*
* @param string $name Transient name.
* @param bool $is_site_transient Optional. Whether this is a site transient. Default false.
* @param bool $human_readable Optional. Whether to return the difference between now and the
* expiration time in a human-readable format. Default false.
* @return string Expiration time string.
*/
private function get_transient_expiration( $name, $is_site_transient = false, $human_readable = false ) {
if ( $is_site_transient ) {
if ( is_multisite() ) {
/**
* @var string $expiration
*/
$expiration = get_site_option( '_site_transient_timeout_' . $name );
} else {
/**
* @var string $expiration
*/
$expiration = get_option( '_site_transient_timeout_' . $name );
}
} else {
/**
* @var string $expiration
*/
$expiration = get_option( '_transient_timeout_' . $name );
}
$expiration = (int) $expiration;
if ( 0 === $expiration ) {
return $human_readable ? 'never expires' : 'false';
}
if ( ! $human_readable ) {
return (string) $expiration;
}
$now = time();
if ( $now > $expiration ) {
return 'expired';
}
return human_time_diff( $now, $expiration );
}
/**
* Deletes all expired transients.
*
* Only deletes the expired transients from the database.
*
* @param bool $network Whether to delete transients or network|site transients.
*/
private function delete_expired( $network ) {
global $wpdb;
$count = 0;
if ( ! $network ) {
$count += $wpdb->query(
$wpdb->prepare(
"DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b
WHERE a.option_name LIKE %s
AND a.option_name NOT LIKE %s
AND b.option_name = CONCAT( '_transient_timeout_', SUBSTRING( a.option_name, 12 ) )
AND b.option_value < %d",
Utils\esc_like( '_transient_' ) . '%',
Utils\esc_like( '_transient_timeout_' ) . '%',
time()
)
);
} elseif ( ! is_multisite() ) {
// Non-Multisite stores site transients in the options table.
$count += $wpdb->query(
$wpdb->prepare(
"DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b
WHERE a.option_name LIKE %s
AND a.option_name NOT LIKE %s
AND b.option_name = CONCAT( '_site_transient_timeout_', SUBSTRING( a.option_name, 17 ) )
AND b.option_value < %d",
Utils\esc_like( '_site_transient_' ) . '%',
Utils\esc_like( '_site_transient_timeout_' ) . '%',
time()
)
);
} else {
// Multisite stores site transients in the sitemeta table.
$count += $wpdb->query(
$wpdb->prepare(
"DELETE a, b FROM {$wpdb->sitemeta} a, {$wpdb->sitemeta} b
WHERE a.meta_key LIKE %s
AND a.meta_key NOT LIKE %s
AND b.meta_key = CONCAT( '_site_transient_timeout_', SUBSTRING( a.meta_key, 17 ) )
AND b.meta_value < %d",
Utils\esc_like( '_site_transient_' ) . '%',
Utils\esc_like( '_site_transient_timeout_' ) . '%',
time()
)
);
}
// The above queries delete the transient and the transient timeout
// thus each transient is counted twice.
$count = $count / 2;
if ( $count > 0 ) {
WP_CLI::success(
sprintf(
'%d expired %s deleted from the database.',
$count,
Utils\pluralize( 'transient', $count )
)
);
} else {
WP_CLI::success( 'No expired transients found.' );
}
if ( wp_using_ext_object_cache() ) {
WP_CLI::warning( 'Transients are stored in an external object cache, and this command only deletes those stored in the database. You must flush the cache to delete all transients.' );
}
}
/**
* Deletes all transients.
*
* Only deletes the transients from the database.
*
* @param bool $network Whether to delete transients or network|site transients.
*/
private function delete_all( $network ) {
global $wpdb;
// To ensure proper count values we first delete all transients with a timeout
// and then the remaining transients without a timeout.
$count = 0;
if ( ! $network ) {
$deleted = $wpdb->query(
$wpdb->prepare(
"DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b
WHERE a.option_name LIKE %s
AND a.option_name NOT LIKE %s
AND b.option_name = CONCAT( '_transient_timeout_', SUBSTRING( a.option_name, 12 ) )",
Utils\esc_like( '_transient_' ) . '%',
Utils\esc_like( '_transient_timeout_' ) . '%'
)
);
$count += $deleted / 2; // Ignore affected rows for timeouts.
$count += $wpdb->query(
$wpdb->prepare(
"DELETE FROM $wpdb->options WHERE option_name LIKE %s",
Utils\esc_like( '_transient_' ) . '%'
)
);
} elseif ( ! is_multisite() ) {
// Non-Multisite stores site transients in the options table.
$deleted = $wpdb->query(
$wpdb->prepare(
"DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b
WHERE a.option_name LIKE %s
AND a.option_name NOT LIKE %s
AND b.option_name = CONCAT( '_site_transient_timeout_', SUBSTRING( a.option_name, 17 ) )",
Utils\esc_like( '_site_transient_' ) . '%',
Utils\esc_like( '_site_transient_timeout_' ) . '%'
)
);
$count += $deleted / 2; // Ignore affected rows for timeouts.
$count += $wpdb->query(
$wpdb->prepare(
"DELETE FROM $wpdb->options WHERE option_name LIKE %s",
Utils\esc_like( '_site_transient_' ) . '%'
)
);
} else {
// Multisite stores site transients in the sitemeta table.
$deleted = $wpdb->query(
$wpdb->prepare(
"DELETE a, b FROM {$wpdb->sitemeta} a, {$wpdb->sitemeta} b
WHERE a.meta_key LIKE %s
AND a.meta_key NOT LIKE %s
AND b.meta_key = CONCAT( '_site_transient_timeout_', SUBSTRING( a.meta_key, 17 ) )",
Utils\esc_like( '_site_transient_' ) . '%',
Utils\esc_like( '_site_transient_timeout_' ) . '%'
)
);
$count += $deleted / 2; // Ignore affected rows for timeouts.
$count += $wpdb->query(
$wpdb->prepare(
"DELETE FROM $wpdb->sitemeta WHERE meta_key LIKE %s",
Utils\esc_like( '_site_transient_' ) . '%'
)
);
}
if ( $count > 0 ) {
WP_CLI::success(
sprintf(
'%d %s deleted from the database.',
$count,
Utils\pluralize( 'transient', $count )
)
);
} else {
WP_CLI::success( 'No transients found.' );
}
if ( wp_using_ext_object_cache() ) {
WP_CLI::warning( 'Transients are stored in an external object cache, and this command only deletes those stored in the database. You must flush the cache to delete all transients.' );
}
}
}