BaseMailer.php 13.1 KB
Newer Older
1 2 3 4 5 6 7
<?php
/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

Paul Klimov committed
8
namespace yii\mail;
9

10
use Yii;
11 12
use yii\base\Component;
use yii\base\InvalidConfigException;
13
use yii\base\ViewContextInterface;
Qiang Xue committed
14
use yii\web\View;
15
use yii\base\MailEvent;
16 17

/**
Qiang Xue committed
18 19
 * BaseMailer serves as a base class that implements the basic functions required by [[MailerInterface]].
 *
20
 * Concrete child classes should may focus on implementing the [[sendMessage()]] method.
21 22 23
 *
 * @see BaseMessage
 *
24 25
 * @property View $view View instance. Note that the type of this property differs in getter and setter. See
 * [[getView()]] and [[setView()]] for details.
26 27 28 29
 *
 * @author Paul Klimov <klimov.paul@gmail.com>
 * @since 2.0
 */
30
abstract class BaseMailer extends Component implements MailerInterface, ViewContextInterface
31
{
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
    /**
     * @event \yii\base\MailEvent an event raised right before send.
     * You may set [[\yii\base\MailEvent::isValid]] to be false to cancel the send.
     */
    const EVENT_BEFORE_SEND = 'beforeSend';
    /**
     * @event \yii\base\MailEvent an event raised right after send.
     */
    const EVENT_AFTER_SEND = 'afterSend';
    /**
     * @var string|boolean HTML layout view name. This is the layout used to render HTML mail body.
     * The property can take the following values:
     *
     * - a relative view name: a view file relative to [[viewPath]], e.g., 'layouts/html'.
     * - a path alias: an absolute view file path specified as a path alias, e.g., '@app/mail/html'.
     * - a boolean false: the layout is disabled.
     */
    public $htmlLayout = 'layouts/html';
    /**
     * @var string|boolean text layout view name. This is the layout used to render TEXT mail body.
     * Please refer to [[htmlLayout]] for possible values that this property can take.
     */
    public $textLayout = 'layouts/text';
    /**
     * @var array the configuration that should be applied to any newly created
     * email message instance by [[createMessage()]] or [[compose()]]. Any valid property defined
     * by [[MessageInterface]] can be configured, such as `from`, `to`, `subject`, `textBody`, `htmlBody`, etc.
     *
     * For example:
     *
     * ~~~
     * [
     *     'charset' => 'UTF-8',
     *     'from' => 'noreply@mydomain.com',
     *     'bcc' => 'developer@mydomain.com',
     * ]
     * ~~~
     */
    public $messageConfig = [];
    /**
     * @var string the default class name of the new message instances created by [[createMessage()]]
     */
    public $messageClass = 'yii\mail\BaseMessage';
    /**
     * @var boolean whether to save email messages as files under [[fileTransportPath]] instead of sending them
     * to the actual recipients. This is usually used during development for debugging purpose.
     * @see fileTransportPath
     */
    public $useFileTransport = false;
    /**
     * @var string the directory where the email messages are saved when [[useFileTransport]] is true.
     */
    public $fileTransportPath = '@runtime/mail';
    /**
     * @var callable a PHP callback that will be called by [[send()]] when [[useFileTransport]] is true.
     * The callback should return a file name which will be used to save the email message.
     * If not set, the file name will be generated based on the current timestamp.
     *
     * The signature of the callback is:
     *
     * ~~~
     * function ($mailer, $message)
     * ~~~
     */
    public $fileTransportCallback;
97

98 99 100 101
    /**
     * @var \yii\base\View|array view instance or its array configuration.
     */
    private $_view = [];
102 103 104 105
    /**
     * @var string the directory containing view files for composing mail messages.
     */
    private $_viewPath;
106

107
    /**
108 109
     * @param array|View $view view instance or its array configuration that will be used to
     * render message bodies.
110 111 112 113 114 115 116 117 118
     * @throws InvalidConfigException on invalid argument.
     */
    public function setView($view)
    {
        if (!is_array($view) && !is_object($view)) {
            throw new InvalidConfigException('"' . get_class($this) . '::view" should be either object or configuration array, "' . gettype($view) . '" given.');
        }
        $this->_view = $view;
    }
119

120 121 122 123 124 125 126 127
    /**
     * @return View view instance.
     */
    public function getView()
    {
        if (!is_object($this->_view)) {
            $this->_view = $this->createView($this->_view);
        }
128

129 130
        return $this->_view;
    }
131

132 133
    /**
     * Creates view instance from given configuration.
134 135
     * @param array $config view configuration.
     * @return View view instance.
136 137 138 139 140 141
     */
    protected function createView(array $config)
    {
        if (!array_key_exists('class', $config)) {
            $config['class'] = View::className();
        }
142

143 144
        return Yii::createObject($config);
    }
145

146 147 148 149 150 151 152 153 154 155 156 157 158 159 160
    /**
     * Creates a new message instance and optionally composes its body content via view rendering.
     *
     * @param string|array $view the view to be used for rendering the message body. This can be:
     *
     * - a string, which represents the view name or path alias for rendering the HTML body of the email.
     *   In this case, the text body will be generated by applying `strip_tags()` to the HTML body.
     * - an array with 'html' and/or 'text' elements. The 'html' element refers to the view name or path alias
     *   for rendering the HTML body, while 'text' element is for rendering the text body. For example,
     *   `['html' => 'contact-html', 'text' => 'contact-text']`.
     * - null, meaning the message instance will be returned without body content.
     *
     * The view to be rendered can be specified in one of the following formats:
     *
     * - path alias (e.g. "@app/mail/contact");
161
     * - a relative view name (e.g. "contact") located under [[viewPath]].
162
     *
163
     * @param array $params the parameters (name-value pairs) that will be extracted and made available in the view file.
164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
     * @return MessageInterface message instance.
     */
    public function compose($view = null, array $params = [])
    {
        $message = $this->createMessage();
        if ($view !== null) {
            $params['message'] = $message;
            if (is_array($view)) {
                if (isset($view['html'])) {
                    $html = $this->render($view['html'], $params, $this->htmlLayout);
                }
                if (isset($view['text'])) {
                    $text = $this->render($view['text'], $params, $this->textLayout);
                }
            } else {
                $html = $this->render($view, $params, $this->htmlLayout);
            }
            if (isset($html)) {
                $message->setHtmlBody($html);
            }
            if (isset($text)) {
                $message->setTextBody($text);
            } elseif (isset($html)) {
                $message->setTextBody(strip_tags($html));
            }
        }
        return $message;
    }
192

193 194 195 196 197 198 199 200 201 202 203 204 205
    /**
     * Creates a new message instance.
     * The newly created instance will be initialized with the configuration specified by [[messageConfig]].
     * If the configuration does not specify a 'class', the [[messageClass]] will be used as the class
     * of the new message instance.
     * @return MessageInterface message instance.
     */
    protected function createMessage()
    {
        $config = $this->messageConfig;
        if (!array_key_exists('class', $config)) {
            $config['class'] = $this->messageClass;
        }
206
        $config['mailer'] = $this;
207 208
        return Yii::createObject($config);
    }
209

210 211 212 213 214 215
    /**
     * Sends the given email message.
     * This method will log a message about the email being sent.
     * If [[useFileTransport]] is true, it will save the email as a file under [[fileTransportPath]].
     * Otherwise, it will call [[sendMessage()]] to send the email to its recipient(s).
     * Child classes should implement [[sendMessage()]] with the actual email sending logic.
216 217
     * @param MessageInterface $message email message instance to be sent
     * @return boolean whether the message has been sent successfully
218 219 220 221 222 223
     */
    public function send($message)
    {
        if (!$this->beforeSend($message)) {
            return false;
        }
224

225 226 227 228 229
        $address = $message->getTo();
        if (is_array($address)) {
            $address = implode(', ', array_keys($address));
        }
        Yii::info('Sending email "' . $message->getSubject() . '" to "' . $address . '"', __METHOD__);
230

231 232 233 234 235 236
        if ($this->useFileTransport) {
            $isSuccessful = $this->saveMessage($message);
        } else {
            $isSuccessful = $this->sendMessage($message);
        }
        $this->afterSend($message, $isSuccessful);
237

238 239
        return $isSuccessful;
    }
240

241 242 243 244 245 246 247
    /**
     * Sends multiple messages at once.
     *
     * The default implementation simply calls [[send()]] multiple times.
     * Child classes may override this method to implement more efficient way of
     * sending multiple messages.
     *
248
     * @param array $messages list of email messages, which should be sent.
249 250 251 252 253 254 255 256 257 258
     * @return integer number of messages that are successfully sent.
     */
    public function sendMultiple(array $messages)
    {
        $successCount = 0;
        foreach ($messages as $message) {
            if ($this->send($message)) {
                $successCount++;
            }
        }
259

260 261
        return $successCount;
    }
262

263 264 265
    /**
     * Renders the specified view with optional parameters and layout.
     * The view will be rendered using the [[view]] component.
266 267 268 269
     * @param string $view the view name or the path alias of the view file.
     * @param array $params the parameters (name-value pairs) that will be extracted and made available in the view file.
     * @param string|boolean $layout layout view name or path alias. If false, no layout will be applied.
     * @return string the rendering result.
270 271 272 273 274 275 276 277 278 279 280 281 282 283
     */
    public function render($view, $params = [], $layout = false)
    {
        $output = $this->getView()->render($view, $params, $this);
        if ($layout !== false) {
            return $this->getView()->render($layout, ['content' => $output], $this);
        } else {
            return $output;
        }
    }

    /**
     * Sends the specified message.
     * This method should be implemented by child classes with the actual email sending logic.
284 285
     * @param MessageInterface $message the message to be sent
     * @return boolean whether the message is sent successfully
286 287 288 289 290
     */
    abstract protected function sendMessage($message);

    /**
     * Saves the message as a file under [[fileTransportPath]].
291 292
     * @param MessageInterface $message
     * @return boolean whether the message is saved successfully
293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320
     */
    protected function saveMessage($message)
    {
        $path = Yii::getAlias($this->fileTransportPath);
        if (!is_dir(($path))) {
            mkdir($path, 0777, true);
        }
        if ($this->fileTransportCallback !== null) {
            $file = $path . '/' . call_user_func($this->fileTransportCallback, $this, $message);
        } else {
            $file = $path . '/' . $this->generateMessageFileName();
        }
        file_put_contents($file, $message->toString());

        return true;
    }

    /**
     * @return string the file name for saving the message when [[useFileTransport]] is true.
     */
    public function generateMessageFileName()
    {
        $time = microtime(true);

        return date('Ymd-His-', $time) . sprintf('%04d', (int) (($time - (int) $time) * 10000)) . '-' . sprintf('%04d', mt_rand(0, 10000)) . '.eml';
    }

    /**
321 322 323 324 325 326 327 328 329 330 331 332 333 334
     * @return string the directory that contains the view files for composing mail messages
     * Defaults to '@app/mail'.
     */
    public function getViewPath()
    {
        if ($this->_viewPath === null) {
            $this->setViewPath('@app/mail');
        }
        return $this->_viewPath;
    }

    /**
     * @param string $path the directory that contains the view files for composing mail messages
     * This can be specified as an absolute path or a path alias.
335
     */
336
    public function setViewPath($path)
337
    {
338
        $this->_viewPath = Yii::getAlias($path);
339 340 341 342 343 344
    }

    /**
     * This method is invoked right before mail send.
     * You may override this method to do last-minute preparation for the message.
     * If you override this method, please make sure you call the parent implementation first.
345 346
     * @param MessageInterface $message
     * @return boolean whether to continue sending an email.
347 348 349 350 351 352 353 354 355 356 357 358 359 360
     */
    public function beforeSend($message)
    {
        $event = new MailEvent(['message' => $message]);
        $this->trigger(self::EVENT_BEFORE_SEND, $event);

        return $event->isValid;
    }

    /**
     * This method is invoked right after mail was send.
     * You may override this method to do some postprocessing or logging based on mail send status.
     * If you override this method, please make sure you call the parent implementation first.
     * @param MessageInterface $message
361
     * @param boolean $isSuccessful
362 363 364 365 366 367
     */
    public function afterSend($message, $isSuccessful)
    {
        $event = new MailEvent(['message' => $message, 'isSuccessful' => $isSuccessful]);
        $this->trigger(self::EVENT_AFTER_SEND, $event);
    }
368
}