request_filesystem_credentials

函数
request_filesystem_credentials ( $form_post, $type = '', $error = false, $context = '', $extra_fields = null, $allow_relaxed_file_ownership = false )
参数
  • (string) $form_post The URL to post the form to.
    Required:
  • (string) $type Optional. Chosen type of filesystem. Default empty.
    Required:
    Default: (empty)
  • (bool|WP_Error) $error Optional. Whether the current request has failed to connect, or an error object. Default false.
    Required:
    Default: false
  • (string) $context Optional. Full path to the directory that is tested for being writable. Default empty.
    Required:
    Default: (empty)
  • (array) $extra_fields Optional. Extra `POST` fields to be checked for inclusion in the post. Default null.
    Required:
    Default: null
  • (bool) $allow_relaxed_file_ownership Optional. Whether to allow Group/World writable. Default false.
    Required:
    Default: false
返回值
  • (bool|array) True if no filesystem credentials are required, false if they are required but have not been provided, array of credentials if they are required and have been provided.
定义位置
相关方法
wp_print_request_filesystem_credentials_modalget_filesystem_methodrest_api_register_rewritesget_registered_settings_wp_privacy_requests_screen_options
引入
2.5.0
弃用
-

request_filesystem_credentials: 这个函数用来提示用户他们的FTP或SSH证书,以便执行文件操作。它通常在安装或更新插件和主题时使用。

显示一个表格给用户,要求他们提供FTP/SSH的详细信息,以便连接到文件系统。

所有选择/输入的细节都被保存,不包括密码。

主机名可以采用hostname:portnumber的形式(例如:wordpress.org:2467)来指定一个备用的FTP/SSH端口。

插件可以通过{@see ‘request_filesystem_credentials’}过滤器返回true|false来覆盖这种形式。

function request_filesystem_credentials( $form_post, $type = '', $error = false, $context = '', $extra_fields = null, $allow_relaxed_file_ownership = false ) {
	global $pagenow;

	/**
	 * Filters the filesystem credentials.
	 *
	 * Returning anything other than an empty string will effectively short-circuit
	 * output of the filesystem credentials form, returning that value instead.
	 *
	 * A filter should return true if no filesystem credentials are required, false if they are required but have not been
	 * provided, or an array of credentials if they are required and have been provided.
	 *
	 * @since 2.5.0
	 * @since 4.6.0 The `$context` parameter default changed from `false` to an empty string.
	 *
	 * @param mixed         $credentials                  Credentials to return instead. Default empty string.
	 * @param string        $form_post                    The URL to post the form to.
	 * @param string        $type                         Chosen type of filesystem.
	 * @param bool|WP_Error $error                        Whether the current request has failed to connect,
	 *                                                    or an error object.
	 * @param string        $context                      Full path to the directory that is tested for
	 *                                                    being writable.
	 * @param array         $extra_fields                 Extra POST fields.
	 * @param bool          $allow_relaxed_file_ownership Whether to allow Group/World writable.
	 */
	$req_cred = apply_filters( 'request_filesystem_credentials', '', $form_post, $type, $error, $context, $extra_fields, $allow_relaxed_file_ownership );

	if ( '' !== $req_cred ) {
		return $req_cred;
	}

	if ( empty( $type ) ) {
		$type = get_filesystem_method( array(), $context, $allow_relaxed_file_ownership );
	}

	if ( 'direct' === $type ) {
		return true;
	}

	if ( is_null( $extra_fields ) ) {
		$extra_fields = array( 'version', 'locale' );
	}

	$credentials = get_option(
		'ftp_credentials',
		array(
			'hostname' => '',
			'username' => '',
		)
	);

	$submitted_form = wp_unslash( $_POST );

	// Verify nonce, or unset submitted form field values on failure.
	if ( ! isset( $_POST['_fs_nonce'] ) || ! wp_verify_nonce( $_POST['_fs_nonce'], 'filesystem-credentials' ) ) {
		unset(
			$submitted_form['hostname'],
			$submitted_form['username'],
			$submitted_form['password'],
			$submitted_form['public_key'],
			$submitted_form['private_key'],
			$submitted_form['connection_type']
		);
	}

	$ftp_constants = array(
		'hostname'    => 'FTP_HOST',
		'username'    => 'FTP_USER',
		'password'    => 'FTP_PASS',
		'public_key'  => 'FTP_PUBKEY',
		'private_key' => 'FTP_PRIKEY',
	);

	// If defined, set it to that. Else, if POST'd, set it to that. If not, set it to an empty string.
	// Otherwise, keep it as it previously was (saved details in option).
	foreach ( $ftp_constants as $key => $constant ) {
		if ( defined( $constant ) ) {
			$credentials[ $key ] = constant( $constant );
		} elseif ( ! empty( $submitted_form[ $key ] ) ) {
			$credentials[ $key ] = $submitted_form[ $key ];
		} elseif ( ! isset( $credentials[ $key ] ) ) {
			$credentials[ $key ] = '';
		}
	}

	// Sanitize the hostname, some people might pass in odd data.
	$credentials['hostname'] = preg_replace( '|w+://|', '', $credentials['hostname'] ); // Strip any schemes off.

	if ( strpos( $credentials['hostname'], ':' ) ) {
		list( $credentials['hostname'], $credentials['port'] ) = explode( ':', $credentials['hostname'], 2 );
		if ( ! is_numeric( $credentials['port'] ) ) {
			unset( $credentials['port'] );
		}
	} else {
		unset( $credentials['port'] );
	}

	if ( ( defined( 'FTP_SSH' ) && FTP_SSH ) || ( defined( 'FS_METHOD' ) && 'ssh2' === FS_METHOD ) ) {
		$credentials['connection_type'] = 'ssh';
	} elseif ( ( defined( 'FTP_SSL' ) && FTP_SSL ) && 'ftpext' === $type ) { // Only the FTP Extension understands SSL.
		$credentials['connection_type'] = 'ftps';
	} elseif ( ! empty( $submitted_form['connection_type'] ) ) {
		$credentials['connection_type'] = $submitted_form['connection_type'];
	} elseif ( ! isset( $credentials['connection_type'] ) ) { // All else fails (and it's not defaulted to something else saved), default to FTP.
		$credentials['connection_type'] = 'ftp';
	}

	if ( ! $error
		&& ( ! empty( $credentials['hostname'] ) && ! empty( $credentials['username'] ) && ! empty( $credentials['password'] )
			|| 'ssh' === $credentials['connection_type'] && ! empty( $credentials['public_key'] ) && ! empty( $credentials['private_key'] )
		)
	) {
		$stored_credentials = $credentials;

		if ( ! empty( $stored_credentials['port'] ) ) { // Save port as part of hostname to simplify above code.
			$stored_credentials['hostname'] .= ':' . $stored_credentials['port'];
		}

		unset(
			$stored_credentials['password'],
			$stored_credentials['port'],
			$stored_credentials['private_key'],
			$stored_credentials['public_key']
		);

		if ( ! wp_installing() ) {
			update_option( 'ftp_credentials', $stored_credentials );
		}

		return $credentials;
	}

	$hostname        = isset( $credentials['hostname'] ) ? $credentials['hostname'] : '';
	$username        = isset( $credentials['username'] ) ? $credentials['username'] : '';
	$public_key      = isset( $credentials['public_key'] ) ? $credentials['public_key'] : '';
	$private_key     = isset( $credentials['private_key'] ) ? $credentials['private_key'] : '';
	$port            = isset( $credentials['port'] ) ? $credentials['port'] : '';
	$connection_type = isset( $credentials['connection_type'] ) ? $credentials['connection_type'] : '';

	if ( $error ) {
		$error_string = __( '<strong>Error:</strong> Could not connect to the server. Please verify the settings are correct.' );
		if ( is_wp_error( $error ) ) {
			$error_string = esc_html( $error->get_error_message() );
		}
		echo '<div id="message" class="error"><p>' . $error_string . '</p></div>';
	}

	$types = array();
	if ( extension_loaded( 'ftp' ) || extension_loaded( 'sockets' ) || function_exists( 'fsockopen' ) ) {
		$types['ftp'] = __( 'FTP' );
	}
	if ( extension_loaded( 'ftp' ) ) { // Only this supports FTPS.
		$types['ftps'] = __( 'FTPS (SSL)' );
	}
	if ( extension_loaded( 'ssh2' ) ) {
		$types['ssh'] = __( 'SSH2' );
	}

	/**
	 * Filters the connection types to output to the filesystem credentials form.
	 *
	 * @since 2.9.0
	 * @since 4.6.0 The `$context` parameter default changed from `false` to an empty string.
	 *
	 * @param string[]      $types       Types of connections.
	 * @param array         $credentials Credentials to connect with.
	 * @param string        $type        Chosen filesystem method.
	 * @param bool|WP_Error $error       Whether the current request has failed to connect,
	 *                                   or an error object.
	 * @param string        $context     Full path to the directory that is tested for being writable.
	 */
	$types = apply_filters( 'fs_ftp_connection_types', $types, $credentials, $type, $error, $context );
	?>
<form action="<?php echo esc_url( $form_post ); ?>" method="post">
<div id="request-filesystem-credentials-form" class="request-filesystem-credentials-form">
	<?php
	// Print a H1 heading in the FTP credentials modal dialog, default is a H2.
	$heading_tag = 'h2';
	if ( 'plugins.php' === $pagenow || 'plugin-install.php' === $pagenow ) {
		$heading_tag = 'h1';
	}
	echo "<$heading_tag id='request-filesystem-credentials-title'>" . __( 'Connection Information' ) . "</$heading_tag>";
	?>
<p id="request-filesystem-credentials-desc">
	<?php
	$label_user = __( 'Username' );
	$label_pass = __( 'Password' );
	_e( 'To perform the requested action, WordPress needs to access your web server.' );
	echo ' ';
	if ( ( isset( $types['ftp'] ) || isset( $types['ftps'] ) ) ) {
		if ( isset( $types['ssh'] ) ) {
			_e( 'Please enter your FTP or SSH credentials to proceed.' );
			$label_user = __( 'FTP/SSH Username' );
			$label_pass = __( 'FTP/SSH Password' );
		} else {
			_e( 'Please enter your FTP credentials to proceed.' );
			$label_user = __( 'FTP Username' );
			$label_pass = __( 'FTP Password' );
		}
		echo ' ';
	}
	_e( 'If you do not remember your credentials, you should contact your web host.' );

	$hostname_value = esc_attr( $hostname );
	if ( ! empty( $port ) ) {
		$hostname_value .= ":$port";
	}

	$password_value = '';
	if ( defined( 'FTP_PASS' ) ) {
		$password_value = '*****';
	}
	?>
</p>
<label for="hostname">
	<span class="field-title"><?php _e( 'Hostname' ); ?></span>
	<input name="hostname" type="text" id="hostname" aria-describedby="request-filesystem-credentials-desc" class="code" placeholder="<?php esc_attr_e( 'example: www.wordpress.org' ); ?>" value="<?php echo $hostname_value; ?>"<?php disabled( defined( 'FTP_HOST' ) ); ?> />
</label>
<div class="ftp-username">
	<label for="username">
		<span class="field-title"><?php echo $label_user; ?></span>
		<input name="username" type="text" id="username" value="<?php echo esc_attr( $username ); ?>"<?php disabled( defined( 'FTP_USER' ) ); ?> />
	</label>
</div>
<div class="ftp-password">
	<label for="password">
		<span class="field-title"><?php echo $label_pass; ?></span>
		<input name="password" type="password" id="password" value="<?php echo $password_value; ?>"<?php disabled( defined( 'FTP_PASS' ) ); ?> />
		<?php
		if ( ! defined( 'FTP_PASS' ) ) {
			_e( 'This password will not be stored on the server.' );}
		?>
	</label>
</div>
<fieldset>
<legend><?php _e( 'Connection Type' ); ?></legend>
	<?php
	$disabled = disabled( ( defined( 'FTP_SSL' ) && FTP_SSL ) || ( defined( 'FTP_SSH' ) && FTP_SSH ), true, false );
	foreach ( $types as $name => $text ) :
		?>
	<label for="<?php echo esc_attr( $name ); ?>">
		<input type="radio" name="connection_type" id="<?php echo esc_attr( $name ); ?>" value="<?php echo esc_attr( $name ); ?>" <?php checked( $name, $connection_type ); ?> <?php echo $disabled; ?> />
		<?php echo $text; ?>
	</label>
		<?php
	endforeach;
	?>
</fieldset>
	<?php
	if ( isset( $types['ssh'] ) ) {
		$hidden_class = '';
		if ( 'ssh' !== $connection_type || empty( $connection_type ) ) {
			$hidden_class = ' class="hidden"';
		}
		?>
<fieldset id="ssh-keys"<?php echo $hidden_class; ?>>
<legend><?php _e( 'Authentication Keys' ); ?></legend>
<label for="public_key">
	<span class="field-title"><?php _e( 'Public Key:' ); ?></span>
	<input name="public_key" type="text" id="public_key" aria-describedby="auth-keys-desc" value="<?php echo esc_attr( $public_key ); ?>"<?php disabled( defined( 'FTP_PUBKEY' ) ); ?> />
</label>
<label for="private_key">
	<span class="field-title"><?php _e( 'Private Key:' ); ?></span>
	<input name="private_key" type="text" id="private_key" value="<?php echo esc_attr( $private_key ); ?>"<?php disabled( defined( 'FTP_PRIKEY' ) ); ?> />
</label>
<p id="auth-keys-desc"><?php _e( 'Enter the location on the server where the public and private keys are located. If a passphrase is needed, enter that in the password field above.' ); ?></p>
</fieldset>
		<?php
	}

	foreach ( (array) $extra_fields as $field ) {
		if ( isset( $submitted_form[ $field ] ) ) {
			echo '<input type="hidden" name="' . esc_attr( $field ) . '" value="' . esc_attr( $submitted_form[ $field ] ) . '" />';
		}
	}

	// Make sure the `submit_button()` function is available during the REST API call
	// from WP_Site_Health_Auto_Updates::test_check_wp_filesystem_method().
	if ( ! function_exists( 'submit_button' ) ) {
		require_once ABSPATH . '/wp-admin/includes/template.php';
	}
	?>
	<p class="request-filesystem-credentials-action-buttons">
		<?php wp_nonce_field( 'filesystem-credentials', '_fs_nonce', false, true ); ?>
		<button class="button cancel-button" data-js-action="close" type="button"><?php _e( 'Cancel' ); ?></button>
		<?php submit_button( __( 'Proceed' ), '', 'upgrade', false ); ?>
	</p>
</div>
</form>
	<?php
	return false;
}

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