CRM/Utils/Mail.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.4                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2013                                |
   7  +--------------------------------------------------------------------+
   8  | This file is a part of CiviCRM.                                    |
   9  |                                                                    |
  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
  11  | under the terms of the GNU Affero General Public License           |
  12  | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13  |                                                                    |
  14  | CiviCRM is distributed in the hope that it will be useful, but     |
  15  | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17  | See the GNU Affero General Public License for more details.        |
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  19  | You should have received a copy of the GNU Affero General Public   |
  20  | License and the CiviCRM Licensing Exception along                  |
  21  | with this program; if not, contact CiviCRM LLC                     |
  22  | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23  | GNU Affero General Public License or the licensing of CiviCRM,     |
  24  | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25  +--------------------------------------------------------------------+
  26 */
  27
  28 /**
  29  *
  30  * @package CRM
  31  * @copyright CiviCRM LLC (c) 2004-2013
  32  * $Id$
  33  *
  34  */
  35 class CRM_Utils_Mail {
  36
  37   /**
  38    * Wrapper function to send mail in CiviCRM. Hooks are called from this function. The input parameter
  39    * is an associateive array which holds the values of field needed to send an email. These are:
  40    *
  41    * from    : complete from envelope
  42    * toName  : name of person to send email
  43    * toEmail : email address to send to
  44    * cc      : email addresses to cc
  45    * bcc     : email addresses to bcc
  46    * subject : subject of the email
  47    * text    : text of the message
  48    * html    : html version of the message
  49    * replyTo : reply-to header in the email
  50    * attachments: an associative array of
  51    *   fullPath : complete pathname to the file
  52    *   mime_type: mime type of the attachment
  53    *   cleanName: the user friendly name of the attachmment
  54    *
  55    * @param array $params (by reference)
  56    *
  57    * @access public
  58    *
  59    * @return boolean true if a mail was sent, else false
  60    */
  61   static function send(&$params) {
  62     $returnPath       = CRM_Core_BAO_MailSettings::defaultReturnPath();
  63     $includeMessageId = CRM_Core_BAO_MailSettings::includeMessageId();
  64     $emailDomain      = CRM_Core_BAO_MailSettings::defaultDomain();
  65     $from             = CRM_Utils_Array::value('from', $params);
  66     if (!$returnPath) {
  67       $returnPath = self::pluckEmailFromHeader($from);
  68     }
  69     $params['returnPath'] = $returnPath;
  70
  71     // first call the mail alter hook
  72     CRM_Utils_Hook::alterMailParams($params);
  73
  74     // check if any module has aborted mail sending
  75     if (!empty($params['abortMailSend']) || empty($params['toEmail'])) {
  76       return FALSE;
  77     }
  78
  79     $textMessage = CRM_Utils_Array::value('text', $params);
  80     $htmlMessage = CRM_Utils_Array::value('html', $params);
  81     $attachments = CRM_Utils_Array::value('attachments', $params);
  82
  83     // CRM-6224
  84     if (trim(CRM_Utils_String::htmlToText($htmlMessage)) == '') {
  85       $htmlMessage = FALSE;
  86     }
  87
  88     $headers         = array();
  89     // CRM-10699 support custom email headers
  90     if (!empty($params['headers'])) {
  91       $headers = array_merge($headers, $params['headers']);
  92     }
  93     $headers['From'] = $params['from'];
  94     $headers['To']   =
  95       self::formatRFC822Email(
  96         CRM_Utils_Array::value('toName', $params),
  97         CRM_Utils_Array::value('toEmail', $params),
  98         FALSE
  99       );
 100     $headers['Cc'] = CRM_Utils_Array::value('cc', $params);
 101     $headers['Bcc'] = CRM_Utils_Array::value('bcc', $params);
 102     $headers['Subject'] = CRM_Utils_Array::value('subject', $params);
 103     $headers['Content-Type'] = $htmlMessage ? 'multipart/mixed; charset=utf-8' : 'text/plain; charset=utf-8';
 104     $headers['Content-Disposition'] = 'inline';
 105     $headers['Content-Transfer-Encoding'] = '8bit';
 106     $headers['Return-Path'] = CRM_Utils_Array::value('returnPath', $params);
 107
 108     // CRM-11295: Omit reply-to headers if empty; this avoids issues with overzealous mailservers
 109     $replyTo = CRM_Utils_Array::value('replyTo', $params, $from);
 110
 111     if (!empty($replyTo)) {
 112       $headers['Reply-To'] = $replyTo;
 113     }
 114     $headers['Date'] = date('r');
 115     if ($includeMessageId) {
 116       $headers['Message-ID'] = '<' . uniqid('civicrm_', TRUE) . "@$emailDomain>";
 117     }
 118     if (!empty($params['autoSubmitted'])) {
 119       $headers['Auto-Submitted'] = "Auto-Generated";
 120     }
 121
 122     //make sure we has to have space, CRM-6977
 123     foreach (array('From', 'To', 'Cc', 'Bcc', 'Reply-To', 'Return-Path') as $fld) {
 124       if (isset($headers[$fld])) {
 125         $headers[$fld] = str_replace('"<', '" <', $headers[$fld]);
 126       }
 127     }
 128
 129     // quote FROM, if comma is detected AND is not already quoted. CRM-7053
 130     if (strpos($headers['From'], ',') !== FALSE) {
 131       $from = explode(' <', $headers['From']);
 132       $headers['From'] = self::formatRFC822Email(
 133         $from[0],
 134         substr(trim($from[1]), 0, -1),
 135         TRUE
 136       );
 137     }
 138
 139     require_once 'Mail/mime.php';
 140     $msg = new Mail_mime("\n");
 141     if ($textMessage) {
 142       $msg->setTxtBody($textMessage);
 143     }
 144
 145     if ($htmlMessage) {
 146       $msg->setHTMLBody($htmlMessage);
 147     }
 148
 149     if (!empty($attachments)) {
 150       foreach ($attachments as $fileID => $attach) {
 151         $msg->addAttachment(
 152           $attach['fullPath'],
 153           $attach['mime_type'],
 154           $attach['cleanName']
 155         );
 156       }
 157     }
 158
 159     $message = self::setMimeParams($msg);
 160     $headers = &$msg->headers($headers);
 161
 162     $to = array($params['toEmail']);
 163     $result = null;
 164     $mailer =& CRM_Core_Config::getMailer( );
 165
 166     // Mail_smtp and Mail_sendmail mailers require Bcc anc Cc emails
 167     // be included in both $to and $headers['Cc', 'Bcc']
 168     if (get_class($mailer) != "Mail_mail") {
 169         //get emails from headers, since these are
 170         //combination of name and email addresses.
 171         if (!empty($headers['Cc'])) {
 172             $to[] = CRM_Utils_Array::value( 'Cc', $headers );
 173         }
 174         if (!empty($headers['Bcc'])) {
 175             $to[] = CRM_Utils_Array::value( 'Bcc', $headers );
 176         }
 177     }
 178     if (is_object($mailer)) {
 179       CRM_Core_Error::ignoreException();
 180       $result = $mailer->send($to, $headers, $message);
 181       CRM_Core_Error::setCallback();
 182       if (is_a($result, 'PEAR_Error')) {
 183         $message = self::errorMessage($mailer, $result);
 184         // append error message in case multiple calls are being made to
 185         // this method in the course of sending a batch of messages.
 186         CRM_Core_Session::setStatus($message, ts('Mailing Error'), 'error');
 187         return FALSE;
 188       }
 189       // CRM-10699
 190       CRM_Utils_Hook::postEmailSend($params);
 191       return TRUE;
 192     }
 193     return FALSE;
 194   }
 195
 196   static function errorMessage($mailer, $result) {
 197     $message = '<p>' . ts('An error occurred when CiviCRM attempted to send an email (via %1). If you received this error after submitting on online contribution or event registration - the transaction was completed, but we were unable to send the email receipt.', array(
 198       1 => 'SMTP')) . '</p>' . '<p>' . ts('The mail library returned the following error message:') . '<br /><span class="font-red"><strong>' . $result->getMessage() . '</strong></span></p>' . '<p>' . ts('This is probably related to a problem in your Outbound Email Settings (Administer CiviCRM &raquo; System Settings &raquo; Outbound Email), OR the FROM email address specifically configured for your contribution page or event. Possible causes are:') . '</p>';
 199
 200     if (is_a($mailer, 'Mail_smtp')) {
 201       $message .= '<ul>' . '<li>' . ts('Your SMTP Username or Password are incorrect.') . '</li>' . '<li>' . ts('Your SMTP Server (machine) name is incorrect.') . '</li>' . '<li>' . ts('You need to use a Port other than the default port 25 in your environment.') . '</li>' . '<li>' . ts('Your SMTP server is just not responding right now (it is down for some reason).') . '</li>';
 202     }
 203     else {
 204       $message .= '<ul>' . '<li>' . ts('Your Sendmail path is incorrect.') . '</li>' . '<li>' . ts('Your Sendmail argument is incorrect.') . '</li>';
 205     }
 206
 207     $message .= '<li>' . ts('The FROM Email Address configured for this feature may not be a valid sender based on your email service provider rules.') . '</li>' . '</ul>' . '<p>' . ts('Check <a href="%1">this page</a> for more information.', array(
 208       1 => CRM_Utils_System::docURL2('user/advanced-configuration/email-system-configuration', TRUE))) . '</p>';
 209
 210     return $message;
 211   }
 212
 213   static function logger(&$to, &$headers, &$message) {
 214     if (is_array($to)) {
 215       $toString = implode(', ', $to);
 216       $fileName = $to[0];
 217     }
 218     else {
 219       $toString = $fileName = $to;
 220     }
 221     $content = "To: " . $toString . "\n";
 222     foreach ($headers as $key => $val) {
 223       $content .= "$key: $val\n";
 224     }
 225     $content .= "\n" . $message . "\n";
 226
 227     if (is_numeric(CIVICRM_MAIL_LOG)) {
 228       $config = CRM_Core_Config::singleton();
 229       // create the directory if not there
 230       $dirName = $config->configAndLogDir . 'mail' . DIRECTORY_SEPARATOR;
 231       CRM_Utils_File::createDir($dirName);
 232       $fileName = md5(uniqid(CRM_Utils_String::munge($fileName))) . '.txt';
 233       file_put_contents($dirName . $fileName,
 234         $content
 235       );
 236     }
 237     else {
 238       file_put_contents(CIVICRM_MAIL_LOG, $content, FILE_APPEND);
 239     }
 240   }
 241
 242   /**
 243    * Get the email address itself from a formatted full name + address string
 244    *
 245    * Ugly but working.
 246    *
 247    * @param  string $header  the full name + email address string
 248    *
 249    * @return string          the plucked email address
 250    * @static
 251    */
 252   static function pluckEmailFromHeader($header) {
 253     preg_match('/<([^<]*)>$/', $header, $matches);
 254
 255     if (isset($matches[1])) {
 256       return $matches[1];
 257     }
 258     return NULL;
 259   }
 260
 261   /**
 262    * Get the Active outBound email
 263    *
 264    * @return boolean true if valid outBound email configuration found, false otherwise
 265    * @access public
 266    * @static
 267    */
 268   static function validOutBoundMail() {
 269     $mailingInfo = CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::MAILING_PREFERENCES_NAME,
 270       'mailing_backend'
 271     );
 272     if ($mailingInfo['outBound_option'] == CRM_Mailing_Config::OUTBOUND_OPTION_MAIL) {
 273       return TRUE;
 274     }
 275     elseif ($mailingInfo['outBound_option'] == CRM_Mailing_Config::OUTBOUND_OPTION_SMTP) {
 276       if (!isset($mailingInfo['smtpServer']) || $mailingInfo['smtpServer'] == '' ||
 277         $mailingInfo['smtpServer'] == 'YOUR SMTP SERVER' ||
 278         ($mailingInfo['smtpAuth'] && ($mailingInfo['smtpUsername'] == '' || $mailingInfo['smtpPassword'] == ''))
 279       ) {
 280         return FALSE;
 281       }
 282       return TRUE;
 283     }
 284     elseif ($mailingInfo['outBound_option'] == CRM_Mailing_Config::OUTBOUND_OPTION_SENDMAIL) {
 285       if (!$mailingInfo['sendmail_path'] || !$mailingInfo['sendmail_args']) {
 286         return FALSE;
 287       }
 288       return TRUE;
 289     }
 290     elseif ($mailingInfo['outBound_option'] == CRM_Mailing_Config::OUTBOUND_OPTION_REDIRECT_TO_DB) {
 291       return TRUE;
 292     }
 293     return FALSE;
 294   }
 295
 296   static function &setMimeParams(&$message, $params = NULL) {
 297     static $mimeParams = NULL;
 298     if (!$params) {
 299       if (!$mimeParams) {
 300         $mimeParams = array(
 301           'text_encoding' => '8bit',
 302           'html_encoding' => '8bit',
 303           'head_charset' => 'utf-8',
 304           'text_charset' => 'utf-8',
 305           'html_charset' => 'utf-8',
 306         );
 307       }
 308       $params = $mimeParams;
 309     }
 310     return $message->get($params);
 311   }
 312
 313   static function formatRFC822Email($name, $email, $useQuote = FALSE) {
 314     $result = NULL;
 315
 316     $name = trim($name);
 317
 318     // strip out double quotes if present at the beginning AND end
 319     if (substr($name, 0, 1) == '"' &&
 320       substr($name, -1, 1) == '"'
 321     ) {
 322       $name = substr($name, 1, -1);
 323     }
 324
 325     if (!empty($name)) {
 326       // escape the special characters
 327       $name = str_replace(array('<', '"', '>'),
 328         array('\<', '\"', '\>'),
 329         $name
 330       );
 331       if (strpos($name, ',') !== FALSE ||
 332         $useQuote
 333       ) {
 334         // quote the string if it has a comma
 335         $name = '"' . $name . '"';
 336       }
 337
 338       $result = "$name ";
 339     }
 340
 341     $result .= "<{$email}>";
 342     return $result;
 343   }
 344
 345   /**
 346    * Takes a string and checks to see if it needs to be escaped / double quoted
 347    * and if so does the needful and return the formatted name
 348    *
 349    * This code has been copied and adapted from ezc/Mail/src/tools.php
 350    */
 351   static function formatRFC2822Name($name) {
 352     $name = trim($name);
 353     if (!empty($name)) {
 354       // remove the quotes around the name part if they are already there
 355       if (substr($name, 0, 1) == '"' && substr($name, -1) == '"') {
 356         $name = substr($name, 1, -1);
 357       }
 358
 359       // add slashes to " and \ and surround the name part with quotes
 360       if (strpbrk($name, ",@<>:;'\"") !== FALSE) {
 361         $name = '"' . addcslashes($name, '\\"') . '"';
 362       }
 363     }
 364
 365     return $name;
 366   }
 367 }
 368