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Jetpack_JSON_API_Endpoint::validate_call()   B

Complexity

Conditions 6
Paths 4

Size

Total Lines 29

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 6
nc 4
nop 3
dl 0
loc 29
rs 8.8337
c 0
b 0
f 0
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<?php
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include JETPACK__PLUGIN_DIR . '/modules/module-info.php';
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/**
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 * Base class for Jetpack Endpoints, has the validate_call helper function.
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 */
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abstract class Jetpack_JSON_API_Endpoint extends WPCOM_JSON_API_Endpoint {
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	protected $needed_capabilities;
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	protected $expected_actions = array();
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	protected $action;
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	public function callback( $path = '', $blog_id = 0, $object = null ) {
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		if ( is_wp_error( $error = $this->validate_call( $blog_id, $this->needed_capabilities ) ) ) {
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			return $error;
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		}
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		if ( is_wp_error( $error = $this->validate_input( $object ) ) ) {
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			return $error;
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		}
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		if ( ! empty( $this->action ) ) {
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			if( is_wp_error( $error = call_user_func( array( $this, $this->action ) ) ) ) {
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				return $error;
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			}
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		}
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		return $this->result();
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	}
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	abstract protected function result();
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	protected function validate_input( $object ) {
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		$args = $this->input();
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		if( isset( $args['action'] ) && $args['action'] == 'update' ) {
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			$this->action = 'update';
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		}
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		if ( preg_match( "/\/update\/?$/", $this->path ) ) {
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			$this->action = 'update';
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		} elseif( preg_match( "/\/install\/?$/", $this->path ) ) {
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			$this->action = 'install';
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		} elseif( ! empty( $args['action'] ) ) {
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			if( ! in_array( $args['action'], $this->expected_actions ) ) {
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				return new WP_Error( 'invalid_action', __( 'You must specify a valid action', 'jetpack' ) );
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			}
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			$this->action =  $args['action'];
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		}
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		return true;
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	}
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	/**
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	 * Switches to the blog and checks current user capabilities.
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	 * @return bool|WP_Error a WP_Error object or true if things are good.
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	 */
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	protected function validate_call( $_blog_id, $capability, $check_validation = true ) {
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		$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $_blog_id ) );
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		if ( is_wp_error( $blog_id ) ) {
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			return $blog_id;
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		}
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		if ( is_wp_error( $error = $this->check_capability( $capability ) ) ) {
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			return $error;
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		}
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		if (
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			$check_validation &&
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			'GET' !== $this->method &&
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			/**
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			 * Filter to disallow JSON API requests to the site.
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			 * Setting to false disallows you to manage your site remotely from WordPress.com
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			 * and disallows plugin auto-updates.
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			 *
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			 * @since 7.3.0
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			 *
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			 * @param bool $check_validation Whether to allow API requests to manage the site
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			 */
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			! apply_filters( 'jetpack_json_manage_api_enabled', $check_validation )
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		) {
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			return new WP_Error( 'unauthorized_full_access', __( 'Full management mode is off for this site.', 'jetpack' ), 403 );
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		}
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		return true;
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	}
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	/**
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	 * @param $capability
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	 *
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	 * @return bool|WP_Error
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	 */
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	protected function check_capability( $capability ) {
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		if ( is_array( $capability ) ) {
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			// the idea is that the we can pass in an array of capabilitie that the user needs to have before we allowing them to do something
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			$capabilities = ( isset( $capability['capabilities'] ) ? $capability['capabilities'] : $capability );
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			// We can pass in the number of conditions we must pass by default it is all.
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			$must_pass = ( isset( $capability['must_pass'] ) && is_int( $capability['must_pass'] ) ? $capability['must_pass'] : count( $capabilities ) );
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			$failed = array(); // store the failed capabilities
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			$passed = 0; //
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			foreach ( $capabilities as $cap ) {
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				if ( current_user_can( $cap ) ) {
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					$passed ++;
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				} else {
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					$failed[] = $cap;
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				}
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			}
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			// Check that must have conditions is less then
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			if ( $passed < $must_pass ) {
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				return new WP_Error( 'unauthorized', sprintf( __( 'This user is not authorized to %s on this blog.', 'jetpack' ), implode( ', ', $failed ), 403 ) );
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			}
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		} else {
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			if ( !current_user_can( $capability ) ) {
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				return new WP_Error( 'unauthorized', sprintf( __( 'This user is not authorized to %s on this blog.', 'jetpack' ), $capability ), 403 );
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			}
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		}
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		return true;
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	}
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}
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