Adding a folder

1 files changed, 482 insertions, 0 deletions

diff --git a/Postman/PostmanUtils.php b/Postman/PostmanUtils.php
new file mode 100644
index 0000000..6f628ec
--- /dev/null
+++ b/Postman/PostmanUtils.php
@@ -0,0 +1,482 @@
+<?php
+if ( ! defined( 'ABSPATH' ) ) {
+    exit; // Exit if accessed directly
+}
+require_once 'PostmanLogger.php';
+require_once 'PostmanState.php';
+
+/**
+ *
+ * @author jasonhendriks
+ */
+class PostmanUtils {
+	private static $logger;
+	private static $emailValidator;
+
+	const POSTMAN_SETTINGS_PAGE_STUB = 'postman';
+	const REQUEST_OAUTH2_GRANT_SLUG = 'postman/requestOauthGrant';
+	const POSTMAN_EMAIL_LOG_PAGE_STUB = 'postman_email_log';
+
+	// redirections back to THIS SITE should always be relative because of IIS bug
+	const POSTMAN_EMAIL_LOG_PAGE_RELATIVE_URL = 'admin.php?page=postman_email_log';
+	const POSTMAN_HOME_PAGE_RELATIVE_URL = 'admin.php?page=postman';
+
+	// custom admin post page
+	const ADMIN_POST_OAUTH2_GRANT_URL_PART = 'admin-post.php?action=postman/requestOauthGrant';
+
+		const NO_ECHO = false;
+
+	/**
+	 * Initialize the Logger
+	 */
+	public static function staticInit() {
+		PostmanUtils::$logger = new PostmanLogger( 'PostmanUtils' );
+	}
+
+	/**
+	 *
+	 * @param mixed $slug
+	 * @return string
+	 */
+	public static function getPageUrl( $slug ) {
+		if ( is_network_admin() ) {
+			return network_admin_url( 'admin.php?page=' . $slug );
+		}
+
+		return get_admin_url() . 'admin.php?page=' . $slug;
+	}
+
+	/**
+	 * Returns an escaped URL
+	 */
+	public static function getGrantOAuthPermissionUrl() {
+		return get_admin_url() . self::ADMIN_POST_OAUTH2_GRANT_URL_PART;
+	}
+
+	/**
+	 * Returns an escaped URL
+	 */
+	public static function getEmailLogPageUrl() {
+		return menu_page_url( self::POSTMAN_EMAIL_LOG_PAGE_STUB, self::NO_ECHO );
+	}
+
+	/**
+	 * Returns an escaped URL
+	 */
+	public static function getSettingsPageUrl() {
+		return menu_page_url( self::POSTMAN_SETTINGS_PAGE_STUB, self::NO_ECHO );
+	}
+
+	public static function isCurrentPagePostmanAdmin( $page = 'postman' ) {
+		$result = (isset( $_REQUEST ['page'] ) && substr( $_REQUEST ['page'], 0, strlen( $page ) ) == $page);
+		return $result;
+	}
+	/**
+	 * from http://stackoverflow.com/questions/834303/startswith-and-endswith-functions-in-php
+	 *
+	 * @param mixed $haystack
+	 * @param mixed $needle
+	 * @return boolean
+	 */
+	public static function startsWith( $haystack, $needle ) {
+		$length = strlen( $needle );
+		return (substr( $haystack, 0, $length ) === $needle);
+	}
+	/**
+	 * from http://stackoverflow.com/questions/834303/startswith-and-endswith-functions-in-php
+	 *
+	 * @param mixed $haystack
+	 * @param mixed $needle
+	 * @return boolean
+	 */
+	public static function endsWith( $haystack, $needle ) {
+		$length = strlen( $needle );
+		if ( $length == 0 ) {
+			return true;
+		}
+		return (substr( $haystack, - $length ) === $needle);
+	}
+	public static function obfuscatePassword( $password ) {
+		return str_repeat( '*', strlen( $password ) );
+	}
+	/**
+	 * Detect if the host is NOT a domain name
+	 *
+	 * @param mixed $ipAddress
+	 * @return bool
+	 */
+	public static function isHostAddressNotADomainName( $host ) {
+		// IPv4 / IPv6 test from http://stackoverflow.com/a/17871737/4368109
+		$ipv6Detected = preg_match( '/(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))/', $host );
+		$ipv4Detected = preg_match( '/((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])/', $host );
+		return $ipv4Detected || $ipv6Detected;
+		// from http://stackoverflow.com/questions/106179/regular-expression-to-match-dns-hostname-or-ip-address
+		// return preg_match ( '/^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9‌​]{2}|2[0-4][0-9]|25[0-5])$/', $ipAddress );
+	}
+	/**
+	 * Makes the outgoing HTTP requests
+	 * Inside WordPress we can use wp_remote_post().
+	 * Outside WordPress, not so much.
+	 *
+	 * @param mixed $url
+	 * @param mixed $args
+	 * @return string the HTML body
+	 */
+	static function remotePostGetBodyOnly( $url, $parameters, array $headers = array() ) {
+		$response = PostmanUtils::remotePost( $url, $parameters, $headers );
+		$theBody = wp_remote_retrieve_body( $response );
+		return $theBody;
+	}
+
+	/**
+	 * Makes the outgoing HTTP requests
+	 * Inside WordPress we can use wp_remote_post().
+	 * Outside WordPress, not so much.
+	 *
+	 * @param mixed $url
+	 * @param mixed $args
+	 * @return array|WP_Error the HTTP response
+	 */
+	static function remotePost( $url, $parameters = array(), array $headers = array() ) {
+		$args = array(
+				'timeout' => PostmanOptions::getInstance()->getConnectionTimeout(),
+				'headers' => $headers,
+				'body' => $parameters,
+		);
+		if ( PostmanUtils::$logger->isTrace() ) {
+			PostmanUtils::$logger->trace( sprintf( 'Posting to %s', $url ) );
+			PostmanUtils::$logger->trace( 'Post header:' );
+			PostmanUtils::$logger->trace( $headers );
+			PostmanUtils::$logger->trace( 'Posting args:' );
+			PostmanUtils::$logger->trace( $parameters );
+		}
+		$response = wp_remote_post( $url, $args );
+
+		// pre-process the response
+		if ( is_wp_error( $response ) ) {
+			PostmanUtils::$logger->error( $response->get_error_message() );
+			throw new Exception( 'Error executing wp_remote_post: ' . $response->get_error_message() );
+		} else {
+			return $response;
+		}
+	}
+	/**
+	 * A facade function that handles redirects.
+	 * Inside WordPress we can use wp_redirect(). Outside WordPress, not so much. **Load it before postman-core.php**
+	 *
+	 * @param mixed $url
+	 */
+	static function redirect( $url ) {
+		// redirections back to THIS SITE should always be relative because of IIS bug
+		if ( PostmanUtils::$logger->isTrace() ) {
+			PostmanUtils::$logger->trace( sprintf( "Redirecting to '%s'", $url ) );
+		}
+		wp_redirect( $url );
+		exit();
+	}
+	static function parseBoolean( $var ) {
+		return filter_var( $var, FILTER_VALIDATE_BOOLEAN );
+	}
+	static function logMemoryUse( $startingMemory, $description ) {
+		PostmanUtils::$logger->trace( sprintf( $description . ' memory used: %s', PostmanUtils::roundBytes( memory_get_usage() - $startingMemory ) ) );
+	}
+
+	/**
+	 * Rounds the bytes returned from memory_get_usage to smaller amounts used IEC binary prefixes
+	 * See http://en.wikipedia.org/wiki/Binary_prefix
+	 *
+	 * @param mixed $size
+	 * @return string
+	 */
+	static function roundBytes( $size ) {
+		$unit = array(
+				'B',
+				'KiB',
+				'MiB',
+				'GiB',
+				'TiB',
+				'PiB',
+		);
+		return @round( $size / pow( 1024, ($i = floor( log( $size, 1024 ) )) ), 2 ) . ' ' . $unit [ $i ];
+	}
+
+	/**
+	 * Unblock threads waiting on lock()
+	 */
+	static function unlock() {
+		if ( PostmanState::getInstance()->isFileLockingEnabled() ) {
+			PostmanUtils::deleteLockFile();
+		}
+	}
+
+	/**
+	 * Processes will block on this method until unlock() is called
+	 * Inspired by http://cubicspot.blogspot.ca/2010/10/forget-flock-and-system-v-semaphores.html
+	 *
+	 * @throws Exception
+	 */
+	static function lock() {
+		if ( PostmanState::getInstance()->isFileLockingEnabled() ) {
+			$attempts = 0;
+			while ( true ) {
+				// create the semaphore
+				$lock = PostmanUtils::createLockFile();
+				if ( $lock ) {
+					// if we got the lock, return
+					return;
+				} else {
+					$attempts ++;
+					if ( $attempts >= 10 ) {
+						throw new Exception( sprintf( 'Could not create lockfile %s', '/tmp' . '/.postman.lock' ) );
+					}
+					sleep( 1 );
+				}
+			}
+		}
+	}
+
+	static function lockFileExists() {
+		$path = PostmanUtils::calculateTemporaryLockPath( null );
+
+		return file_exists($path);
+	}
+
+	static function deleteLockFile( $tempDirectory = null ) {
+		$path = PostmanUtils::calculateTemporaryLockPath( $tempDirectory );
+		$success = @unlink( $path );
+		if ( PostmanUtils::$logger->isTrace() ) {
+			PostmanUtils::$logger->trace( sprintf( 'Deleting file %s : %s', $path, $success ) );
+		}
+		return $success;
+	}
+	static function createLockFile( $tempDirectory = null ) {
+		if ( self::lockFileExists() ) {
+			self::deleteLockFile();
+		}
+		$path = PostmanUtils::calculateTemporaryLockPath( $tempDirectory );
+		$success = @fopen( $path, 'xb' );
+		if ( PostmanUtils::$logger->isTrace() ) {
+			PostmanUtils::$logger->trace( sprintf( 'Creating file %s : %s', $path, $success ) );
+		}
+		return $success;
+	}
+
+	/**
+	 * Creates the pathname of the lockfile
+	 *
+	 * @param mixed $tempDirectory
+	 * @return string
+	 */
+	private static function calculateTemporaryLockPath( $tempDirectory ) {
+		if ( empty( $tempDirectory ) ) {
+			$options = PostmanOptions::getInstance();
+			$tempDirectory = $options->getTempDirectory();
+		}
+		$fullPath = sprintf( '%s/.postman_%s.lock', $tempDirectory, self::generateUniqueLockKey() );
+		return $fullPath;
+	}
+
+	/**
+	 *
+	 * @return string
+	 */
+	private static function generateUniqueLockKey() {
+		// for single sites, use the network_site_url to generate the key because
+		// it is unique for every wordpress site unlike the blog ID which may be the same
+		$key = hash( 'crc32', network_site_url( '/' ) );
+		// TODO for multisites
+		// if the subsite is sharing the config - use the network_site_url of site 0
+		// if the subsite has its own config - use the network_site_url of the subsite
+		return $key;
+	}
+
+	/**
+	 * From http://stackoverflow.com/a/381275/4368109
+	 *
+	 * @param mixed $text
+	 * @return boolean
+	 */
+	public static function isEmpty( $text ) {
+		// Function for basic field validation (present and neither empty nor only white space
+		return ( ! isset( $text ) || trim( $text ) === '');
+	}
+
+	/**
+	 * Warning! This can only be called on hook 'init' or later
+	 */
+	public static function isAdmin() {
+		/**
+		 * is_admin() will return false when trying to access wp-login.php.
+		 * is_admin() will return true when trying to make an ajax request.
+		 * is_admin() will return true for calls to load-scripts.php and load-styles.php.
+		 * is_admin() is not intended to be used for security checks. It will return true
+		 * whenever the current URL is for a page on the admin side of WordPress. It does
+		 * not check if the user is logged in, nor if the user even has access to the page
+		 * being requested. It is a convenience function for plugins and themes to use for
+		 * various purposes, but it is not suitable for validating secured requests.
+		 *
+		 * Good to know.
+		 */
+		$logger = PostmanUtils::$logger = new PostmanLogger( 'PostmanUtils' );
+		if ( $logger->isTrace() ) {
+			$logger->trace( 'calling current_user_can' );
+		}
+		return current_user_can( Postman::MANAGE_POSTMAN_CAPABILITY_NAME ) && is_admin();
+	}
+
+	/**
+	 * Validate an e-mail address
+	 *
+	 * @param mixed $email
+	 * @return string|bool
+	 */
+	static function validateEmail( $email ) {
+		if ( PostmanOptions::getInstance()->isEmailValidationDisabled() ) {
+			return true;
+		}
+		require_once 'Postman-Mail/Zend-1.12.10/Exception.php';
+		require_once 'Postman-Mail/Zend-1.12.10/Registry.php';
+		require_once 'Postman-Mail/Zend-1.12.10/Validate/Exception.php';
+		require_once 'Postman-Mail/Zend-1.12.10/Validate/Interface.php';
+		require_once 'Postman-Mail/Zend-1.12.10/Validate/Abstract.php';
+		require_once 'Postman-Mail/Zend-1.12.10/Validate/Ip.php';
+		require_once 'Postman-Mail/Zend-1.12.10/Validate/Hostname.php';
+		require_once 'Postman-Mail/Zend-1.12.10/Validate/EmailAddress.php';
+		if ( ! isset( PostmanUtils::$emailValidator ) ) {
+			PostmanUtils::$emailValidator = new Postman_Zend_Validate_EmailAddress();
+		}
+		if ( strpos( $email, ',' ) !== false ) {
+		    $emails = explode(',', $email);
+		    $result = [];
+		    foreach ( $emails as $email ) {
+		        $result[] = PostmanUtils::$emailValidator->isValid( $email );
+            }
+
+		    return ! in_array(false, $result );
+        }
+		return PostmanUtils::$emailValidator->isValid( $email );
+	}
+
+	/**
+	 * From http://stackoverflow.com/questions/13430120/str-getcsv-alternative-for-older-php-version-gives-me-an-empty-array-at-the-e
+	 *
+	 * @param mixed $string
+	 * @return multitype:
+	 */
+	static function postman_strgetcsv_impl( $string ) {
+		$fh = fopen( 'php://temp', 'r+' );
+		fwrite( $fh, $string );
+		rewind( $fh );
+
+		$row = fgetcsv( $fh );
+
+		fclose( $fh );
+		return $row;
+	}
+
+	/**
+	 *
+	 * @return string|mixed
+	 */
+	static function postmanGetServerName() {
+		if ( ! empty( $_SERVER ['SERVER_NAME'] ) ) {
+			$serverName = sanitize_text_field($_SERVER ['SERVER_NAME']);
+		} else if ( ! empty( $_SERVER ['HTTP_HOST'] ) ) {
+			$serverName = sanitize_text_field($_SERVER ['HTTP_HOST']);
+		} else {
+			$serverName = 'localhost.localdomain';
+		}
+		return $serverName;
+	}
+
+	/**
+	 * Does this hostname belong to Google?
+	 *
+	 * @param mixed $hostname
+	 * @return boolean
+	 */
+	static function isGoogle( $hostname ) {
+		return PostmanUtils::endsWith( $hostname, 'gmail.com' ) || PostmanUtils::endsWith( $hostname, 'googleapis.com' );
+	}
+
+	/**
+	 *
+	 * @param mixed $actionName
+	 * @param mixed $callbackName
+	 */
+	public static function registerAdminMenu( $viewController, $callbackName ) {
+		$logger = PostmanUtils::$logger;
+		if ( $logger->isTrace() ) {
+			$logger->trace( 'Registering admin menu ' . $callbackName );
+		}
+		
+		add_action( 'admin_menu', array(
+				$viewController,
+				$callbackName,
+		) );
+	}
+
+	/**
+	 *
+	 * @param mixed $actionName
+	 * @param mixed $callbackName
+	 */
+	public static function registerAjaxHandler( $actionName, $class, $callbackName ) {
+
+		if ( is_admin() ) {
+			$fullname = 'wp_ajax_' . $actionName;
+			// $this->logger->debug ( 'Registering ' . 'wp_ajax_' . $fullname . ' Ajax handler' );
+			add_action( $fullname, array(
+					$class,
+					$callbackName,
+			) );
+		}
+	}
+
+	/**
+	 *
+	 * @param mixed $parameterName
+	 * @return mixed
+	 */
+	public static function getBooleanRequestParameter( $parameterName ) {
+		return filter_var( self::getRequestParameter( $parameterName ), FILTER_VALIDATE_BOOLEAN );
+	}
+
+	/**
+	 *
+	 * @param mixed $parameterName
+	 * @return mixed
+	 */
+	public static function getRequestParameter( $parameterName ) {
+		$logger = PostmanUtils::$logger;
+		if ( isset( $_POST [ $parameterName ] ) ) {
+			$value = filter_var( $_POST [ $parameterName ], FILTER_SANITIZE_STRING );
+			if ( $logger->isTrace() ) {
+				$logger->trace( sprintf( 'Found parameter "%s"', $parameterName ) );
+				$logger->trace( $value );
+			}
+			return $value;
+		}
+	}
+
+	public static function getServerName() {
+        $host = 'localhost';
+        
+        if (isset($_SERVER) and array_key_exists('SERVER_NAME', $_SERVER)) {
+            $host = $_SERVER['SERVER_NAME'];
+        } elseif (function_exists('gethostname') and gethostname() !== false) {
+            $host = gethostname();
+        } elseif (php_uname('n') !== false) {
+            $host = php_uname('n');
+        }
+
+        return str_replace('www.', '', $host );
+	}
+
+	public static function getHost( $url ) {
+		$host = parse_url( trim( $url ), PHP_URL_HOST );
+
+		return str_replace('www.', '', $host );
+	}
+}
+PostmanUtils::staticInit();