+global\UserMailer::sendInternal()

Complexity

Conditions	29
Paths	9520

Size

Total Lines	224
Code Lines	121

Duplication

Lines	21
Ratio	9.38 %

Importance

Changes

0

<?php
	protected static function sendInternal(
		array $to,
		MailAddress $from,
		$subject,
		$body,
		$options = []
	) {
		global $wgSMTP, $wgEnotifMaxRecips, $wgAdditionalMailParams;
		$mime = null;

		$replyto = isset( $options['replyTo'] ) ? $options['replyTo'] : null;
		$contentType = isset( $options['contentType'] ) ?
			$options['contentType'] : 'text/plain; charset=UTF-8';
		$headers = isset( $options['headers'] ) ? $options['headers'] : [];

		// Allow transformation of content, such as encrypting/signing
		$error = false;
		if ( !Hooks::run( 'UserMailerTransformContent', [ $to, $from, &$body, &$error ] ) ) {
			if ( $error ) {
				return Status::newFatal( 'php-mail-error', $error );
			} else {
				return Status::newFatal( 'php-mail-error-unknown' );
			}
		}

		/**
		 * Forge email headers
		 * -------------------
		 *
		 * WARNING
		 *
		 * DO NOT add To: or Subject: headers at this step. They need to be
		 * handled differently depending upon the mailer we are going to use.
		 *
		 * To:
		 *  PHP mail() first argument is the mail receiver. The argument is
		 *  used as a recipient destination and as a To header.
		 *
		 *  PEAR mailer has a recipient argument which is only used to
		 *  send the mail. If no To header is given, PEAR will set it to
		 *  to 'undisclosed-recipients:'.
		 *
		 *  NOTE: To: is for presentation, the actual recipient is specified
		 *  by the mailer using the Rcpt-To: header.
		 *
		 * Subject:
		 *  PHP mail() second argument to pass the subject, passing a Subject
		 *  as an additional header will result in a duplicate header.
		 *
		 *  PEAR mailer should be passed a Subject header.
		 *
		 * -- hashar 20120218
		 */

		$headers['From'] = $from->toString();
		$returnPath = $from->address;
		$extraParams = $wgAdditionalMailParams;

		// Hook to generate custom VERP address for 'Return-Path'
		Hooks::run( 'UserMailerChangeReturnPath', [ $to, &$returnPath ] );
		// Add the envelope sender address using the -f command line option when PHP mail() is used.
		// Will default to the $from->address when the UserMailerChangeReturnPath hook fails and the
		// generated VERP address when the hook runs effectively.
		$extraParams .= ' -f ' . $returnPath;

		$headers['Return-Path'] = $returnPath;

		if ( $replyto ) {
			$headers['Reply-To'] = $replyto->toString();
		}

		$headers['Date'] = MWTimestamp::getLocalInstance()->format( 'r' );
		$headers['Message-ID'] = self::makeMsgId();
		$headers['X-Mailer'] = 'MediaWiki mailer';
		$headers['List-Unsubscribe'] = '<' . SpecialPage::getTitleFor( 'Preferences' )
			->getFullURL( '', false, PROTO_CANONICAL ) . '>';

		// Line endings need to be different on Unix and Windows due to
		// the bug described at https://core.trac.wordpress.org/ticket/2603
		$endl = PHP_EOL;

		if ( is_array( $body ) ) {
			// we are sending a multipart message
			wfDebug( "Assembling multipart mime email\n" );
			if ( !stream_resolve_include_path( 'Mail/mime.php' ) ) {
				wfDebug( "PEAR Mail_Mime package is not installed. Falling back to text email.\n" );
				// remove the html body for text email fall back
				$body = $body['text'];
			} else {
				// Check if pear/mail_mime is already loaded (via composer)
				if ( !class_exists( 'Mail_mime' ) ) {
					require_once 'Mail/mime.php';
				}
				if ( wfIsWindows() ) {
					$body['text'] = str_replace( "\n", "\r\n", $body['text'] );
					$body['html'] = str_replace( "\n", "\r\n", $body['html'] );
				}
				$mime = new Mail_mime( [
					'eol' => $endl,
					'text_charset' => 'UTF-8',
					'html_charset' => 'UTF-8'
				] );
				$mime->setTXTBody( $body['text'] );
				$mime->setHTMLBody( $body['html'] );
				$body = $mime->get(); // must call get() before headers()
				$headers = $mime->headers( $headers );
			}
		}
		if ( $mime === null ) {
			// sending text only, either deliberately or as a fallback
			if ( wfIsWindows() ) {
				$body = str_replace( "\n", "\r\n", $body );
			}
			$headers['MIME-Version'] = '1.0';
			$headers['Content-type'] = $contentType;
			$headers['Content-transfer-encoding'] = '8bit';
		}

		// allow transformation of MIME-encoded message
		if ( !Hooks::run( 'UserMailerTransformMessage',
			[ $to, $from, &$subject, &$headers, &$body, &$error ] )
		) {
			if ( $error ) {
				return Status::newFatal( 'php-mail-error', $error );
			} else {
				return Status::newFatal( 'php-mail-error-unknown' );
			}
		}

		$ret = Hooks::run( 'AlternateUserMailer', [ $headers, $to, $from, $subject, $body ] );
		if ( $ret === false ) {
			// the hook implementation will return false to skip regular mail sending
			return Status::newGood();
		} elseif ( $ret !== true ) {
			// the hook implementation will return a string to pass an error message
			return Status::newFatal( 'php-mail-error', $ret );
		}

		if ( is_array( $wgSMTP ) ) {
			// Check if pear/mail is already loaded (via composer)
			if ( !class_exists( 'Mail' ) ) {
				// PEAR MAILER
				if ( !stream_resolve_include_path( 'Mail.php' ) ) {
					throw new MWException( 'PEAR mail package is not installed' );
				}
				require_once 'Mail.php';
			}

			MediaWiki\suppressWarnings();

			// Create the mail object using the Mail::factory method
			$mail_object =& Mail::factory( 'smtp', $wgSMTP );
			if ( PEAR::isError( $mail_object ) ) {
				wfDebug( "PEAR::Mail factory failed: " . $mail_object->getMessage() . "\n" );
				MediaWiki\restoreWarnings();
				return Status::newFatal( 'pear-mail-error', $mail_object->getMessage() );
			}

			wfDebug( "Sending mail via PEAR::Mail\n" );

			$headers['Subject'] = self::quotedPrintable( $subject );

			// When sending only to one recipient, shows it its email using To:
			if ( count( $to ) == 1 ) {
				$headers['To'] = $to[0]->toString();
			}

			// Split jobs since SMTP servers tends to limit the maximum
			// number of possible recipients.
			$chunks = array_chunk( $to, $wgEnotifMaxRecips );
			foreach ( $chunks as $chunk ) {
				$status = self::sendWithPear( $mail_object, $chunk, $headers, $body );
				// FIXME : some chunks might be sent while others are not!
				if ( !$status->isOK() ) {
					MediaWiki\restoreWarnings();
					return $status;
				}
			}
			MediaWiki\restoreWarnings();
			return Status::newGood();
		} else {
			// PHP mail()
			if ( count( $to ) > 1 ) {
				$headers['To'] = 'undisclosed-recipients:;';
			}
			$headers = self::arrayToHeaderString( $headers, $endl );

			wfDebug( "Sending mail via internal mail() function\n" );

			self::$mErrorString = '';
			$html_errors = ini_get( 'html_errors' );
			ini_set( 'html_errors', '0' );
			set_error_handler( 'UserMailer::errorHandler' );

			try {
				foreach ( $to as $recip ) {
					$sent = mail(
						$recip,
						self::quotedPrintable( $subject ),
						$body,
						$headers,
						$extraParams
					);
				}
			} catch ( Exception $e ) {
				restore_error_handler();
				throw $e;
			}

			restore_error_handler();
			ini_set( 'html_errors', $html_errors );

			if ( self::$mErrorString ) {
				wfDebug( "Error sending mail: " . self::$mErrorString . "\n" );
				return Status::newFatal( 'php-mail-error', self::$mErrorString );
			} elseif ( !$sent ) {

The variable $sent does not seem to be defined for all execution paths leading up to this point.

				// mail function only tells if there's an error
				wfDebug( "Unknown error sending mail\n" );
				return Status::newFatal( 'php-mail-error-unknown' );
			} else {
				return Status::newGood();
			}
		}
	}