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| deliver | |
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| 1 | <?php |
| 2 | /** |
| 3 | * Routes wp_mail() through MailChannels. |
| 4 | * |
| 5 | * @package automattic/jetpack-send |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Send; |
| 9 | |
| 10 | use WP_Error; |
| 11 | |
| 12 | if ( ! defined( 'ABSPATH' ) ) { |
| 13 | exit( 0 ); |
| 14 | } |
| 15 | |
| 16 | /** |
| 17 | * The `pre_wp_mail` handler. |
| 18 | */ |
| 19 | class Mailer { |
| 20 | |
| 21 | /** |
| 22 | * Send through MailChannels, or hand the message back to core. |
| 23 | * |
| 24 | * @param null|bool $return Short-circuit value from earlier callbacks. |
| 25 | * @param array $atts wp_mail() attributes. |
| 26 | * @return null|bool True when sent, null to let core send it, false when it failed with fallback off. |
| 27 | */ |
| 28 | public static function pre_wp_mail( $return, $atts ) { |
| 29 | if ( null !== $return ) { |
| 30 | return $return; |
| 31 | } |
| 32 | |
| 33 | $settings = Settings::get(); |
| 34 | if ( empty( $settings['enabled'] ) ) { |
| 35 | return null; |
| 36 | } |
| 37 | $account = Account::get(); |
| 38 | if ( ! $account ) { |
| 39 | return null; |
| 40 | } |
| 41 | |
| 42 | $atts = (array) $atts; |
| 43 | $payload = Message_Builder::build( $atts, $settings, $account ); |
| 44 | $result = is_wp_error( $payload ) ? $payload : self::deliver( $payload, $account ); |
| 45 | if ( ! is_wp_error( $result ) ) { |
| 46 | self::log( $atts, $payload, Email_Log::STATUS_SENT, $result['request_id'], '', 'wp_mail' ); |
| 47 | /** This action is documented in wp-includes/pluggable.php */ |
| 48 | do_action( 'wp_mail_succeeded', $atts ); |
| 49 | return true; |
| 50 | } |
| 51 | |
| 52 | // A message MailChannels can't represent always goes to core, whatever the fallback setting. |
| 53 | if ( ! empty( $settings['fallback'] ) || 'jetpack_send_unsupported' === $result->get_error_code() ) { |
| 54 | self::log( $atts, $payload, Email_Log::STATUS_FALLBACK, '', $result->get_error_message(), 'wp_mail' ); |
| 55 | return null; |
| 56 | } |
| 57 | |
| 58 | self::log( $atts, $payload, Email_Log::STATUS_FAILED, '', $result->get_error_message(), 'wp_mail' ); |
| 59 | /** This action is documented in wp-includes/pluggable.php */ |
| 60 | do_action( 'wp_mail_failed', new WP_Error( 'wp_mail_failed', $result->get_error_message(), $atts ) ); |
| 61 | return false; |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * Send one built message. |
| 66 | * |
| 67 | * @param array $payload MailChannels payload. |
| 68 | * @param array $account Provisioned account. |
| 69 | * @return array{request_id: string}|WP_Error |
| 70 | */ |
| 71 | private static function deliver( array $payload, array $account ) { |
| 72 | $response = ( new MailChannels_Client( $account['api_key'] ) )->send( $payload ); |
| 73 | if ( is_wp_error( $response ) ) { |
| 74 | return $response; |
| 75 | } |
| 76 | |
| 77 | $result = isset( $response['results'][0] ) && is_array( $response['results'][0] ) ? $response['results'][0] : array(); |
| 78 | if ( 'sent' !== ( $result['status'] ?? '' ) ) { |
| 79 | return new WP_Error( |
| 80 | 'jetpack_send_rejected', |
| 81 | ! empty( $result['reason'] ) && is_string( $result['reason'] ) ? $result['reason'] : __( 'MailChannels did not accept the message.', 'jetpack-send-pkg' ), |
| 82 | array( 'status' => 502 ) |
| 83 | ); |
| 84 | } |
| 85 | |
| 86 | return array( 'request_id' => (string) ( $response['request_id'] ?? '' ) ); |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Send a test email, skipping the enabled check and fallback so the result reflects MailChannels. |
| 91 | * |
| 92 | * @param string $to Recipient. |
| 93 | * @return array{request_id: string}|WP_Error |
| 94 | */ |
| 95 | public static function send_test( $to ) { |
| 96 | $account = Account::get(); |
| 97 | if ( ! $account ) { |
| 98 | return new WP_Error( 'jetpack_send_not_set_up', __( 'Set up Send before sending a test email.', 'jetpack-send-pkg' ), array( 'status' => 400 ) ); |
| 99 | } |
| 100 | |
| 101 | $atts = array( |
| 102 | 'to' => $to, |
| 103 | 'subject' => __( 'Jetpack Send test email', 'jetpack-send-pkg' ), |
| 104 | /* translators: %s: site URL. */ |
| 105 | 'message' => sprintf( __( 'This test email from %s was delivered by Jetpack Send.', 'jetpack-send-pkg' ), home_url() ), |
| 106 | 'headers' => '', |
| 107 | 'attachments' => array(), |
| 108 | ); |
| 109 | |
| 110 | $payload = Message_Builder::build( $atts, Settings::get(), $account ); |
| 111 | $result = is_wp_error( $payload ) ? $payload : self::deliver( $payload, $account ); |
| 112 | if ( is_wp_error( $result ) ) { |
| 113 | self::log( $atts, $payload, Email_Log::STATUS_FAILED, '', $result->get_error_message(), 'test' ); |
| 114 | } else { |
| 115 | self::log( $atts, $payload, Email_Log::STATUS_SENT, $result['request_id'], '', 'test' ); |
| 116 | } |
| 117 | |
| 118 | return $result; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Write a log row. |
| 123 | * |
| 124 | * @param array $atts wp_mail() attributes. |
| 125 | * @param array|WP_Error $payload MailChannels payload, or why it wasn't built. |
| 126 | * @param string $status Email_Log status. |
| 127 | * @param string $request_id MailChannels request ID. |
| 128 | * @param string $error Error message. |
| 129 | * @param string $source `wp_mail` or `test`. |
| 130 | * @return void |
| 131 | */ |
| 132 | private static function log( array $atts, $payload, $status, $request_id, $error, $source ) { |
| 133 | $to = $atts['to'] ?? ''; |
| 134 | Email_Log::insert( |
| 135 | array( |
| 136 | 'recipients' => is_array( $to ) ? implode( ', ', $to ) : (string) $to, |
| 137 | 'subject' => (string) ( $atts['subject'] ?? '' ), |
| 138 | 'status' => $status, |
| 139 | 'error' => $error, |
| 140 | 'request_id' => $request_id, |
| 141 | 'source' => $source, |
| 142 | 'message' => self::log_message( $atts, $payload ), |
| 143 | ) |
| 144 | ); |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * The content the log keeps for previewing: the message as sent, or as wp_mail() received it. |
| 149 | * |
| 150 | * @param array $atts wp_mail() attributes. |
| 151 | * @param array|WP_Error $payload MailChannels payload, or why it wasn't built. |
| 152 | * @return array|null Null when the content isn't kept. |
| 153 | */ |
| 154 | public static function log_message( array $atts, $payload ) { |
| 155 | /** |
| 156 | * Whether Send keeps an email's content in its log so it can be previewed. |
| 157 | * |
| 158 | * @since $$next-version$$ |
| 159 | * |
| 160 | * @param bool $keep Default true. |
| 161 | * @param array $atts wp_mail() attributes. |
| 162 | */ |
| 163 | if ( ! apply_filters( 'jetpack_send_log_email_content', true, $atts ) ) { |
| 164 | return null; |
| 165 | } |
| 166 | |
| 167 | if ( is_array( $payload ) ) { |
| 168 | $personalization = $payload['personalizations'][0]; |
| 169 | // The HTML part comes last when there is one. |
| 170 | $part = end( $payload['content'] ); |
| 171 | $message = array( |
| 172 | 'from' => $payload['from'], |
| 173 | 'reply_to' => $payload['reply_to'] ?? null, |
| 174 | 'cc' => $personalization['cc'] ?? array(), |
| 175 | 'bcc' => $personalization['bcc'] ?? array(), |
| 176 | 'content_type' => $part['type'], |
| 177 | 'body' => $part['value'], |
| 178 | 'attachments' => array_column( $payload['attachments'] ?? array(), 'filename' ), |
| 179 | ); |
| 180 | } else { |
| 181 | $headers = Message_Builder::parse_headers( $atts['headers'] ?? '' ); |
| 182 | /** This filter is documented in wp-includes/pluggable.php */ |
| 183 | $content_type = (string) apply_filters( 'wp_mail_content_type', '' !== $headers['content_type'] ? $headers['content_type'] : 'text/plain' ); |
| 184 | $message = array( |
| 185 | 'from' => '' !== $headers['from']['email'] ? $headers['from'] : null, |
| 186 | 'reply_to' => $headers['reply_to'][0] ?? null, |
| 187 | 'cc' => $headers['cc'], |
| 188 | 'bcc' => $headers['bcc'], |
| 189 | 'content_type' => 'text/html' === strtolower( $content_type ) ? 'text/html' : 'text/plain', |
| 190 | 'body' => (string) ( $atts['message'] ?? '' ), |
| 191 | 'attachments' => array_column( Message_Builder::attachment_files( $atts['attachments'] ?? array() ), 'filename' ), |
| 192 | ); |
| 193 | } |
| 194 | |
| 195 | return strlen( $message['body'] ) > Email_Log::MAX_BODY_BYTES ? null : $message; |
| 196 | } |
| 197 | } |