silverstripe-framework/email/Email.php
Damian Mooyman e47800917a API Mailer can be configured to use different encoding mechanisms, and added support for unicode quoted-string encoding
API Mailer bounce email can now be configured
API Mailer no longer calls Convert::xml2raw on all email subjects
API Deprecate dead Mailer code and refactored duplicate or mis-documented code.
2014-09-25 16:04:56 +12:00

671 lines
19 KiB
PHP

<?php
/**
* @package framework
* @subpackage email
*/
if(isset($_SERVER['SERVER_NAME'])) {
/**
* X-Mailer header value on emails sent
*/
define('X_MAILER', 'SilverStripe Mailer - version 2006.06.21 (Sent from "'.$_SERVER['SERVER_NAME'].'")');
} else {
/**
* @ignore
*/
define('X_MAILER', 'SilverStripe Mailer - version 2006.06.21');
}
/**
* Class to support sending emails.
* @package framework
* @subpackage email
*/
class Email extends ViewableData {
/**
* @param string $from Email-Address
*/
protected $from;
/**
* @param string $to Email-Address. Use comma-separation to pass multiple email-addresses.
*/
protected $to;
/**
* @param string $subject Subject of the email
*/
protected $subject;
/**
* @param string $body HTML content of the email.
* Passed straight into {@link $ss_template} as $Body variable.
*/
protected $body;
/**
* @param string $plaintext_body Optional string for plaintext emails.
* If not set, defaults to converting the HTML-body with {@link Convert::xml2raw()}.
*/
protected $plaintext_body;
/**
* @param string $cc
*/
protected $cc;
/**
* @param string $bcc
*/
protected $bcc;
/**
* @deprecated since version 3.3
*/
public static function set_mailer(Mailer $mailer) {
Deprecation::notice('3.3.0', 'Use Injector to override the Mailer service');
Injector::inst()->registerService($mailer, 'Mailer');
}
/**
* Get the mailer.
*
* @return Mailer
*/
public static function mailer() {
return Injector::inst()->get('Mailer');
}
/**
* @param array $customHeaders A map of header-name -> header-value
*/
protected $customHeaders = array();
/**
* @param array $attachements Internal, use {@link attachFileFromString()} or {@link attachFile()}
*/
protected $attachments = array();
/**
* @param boolean $
*/
protected $parseVariables_done = false;
/**
* @param string $ss_template The name of the used template (without *.ss extension)
*/
protected $ss_template = "GenericEmail";
/**
* @param array $template_data Additional data available in a template.
* Used in the same way than {@link ViewableData->customize()}.
*/
protected $template_data = null;
/**
* @config
* @var string The default administrator email address.
* This will be set in the config on a site-by-site basis
*/
private static $admin_email = '';
/**
* Send every email generated by the Email class to the given address.
*
* It will also add " [addressed to (email), cc to (email), bcc to (email)]" to the end of the subject line
*
* To set this, set Email.send_all_emails_to in your yml config file.
* It can also be set in _ss_environment.php with SS_SEND_ALL_EMAILS_TO.
*
* @config
* @param string $send_all_emails_to Email-Address
*/
private static $send_all_emails_to = null;
/**
* Send every email generated by the Email class *from* the given address.
* It will also add " [, from to (email)]" to the end of the subject line
*
* To set this, set Email.send_all_emails_from in your yml config file.
* It can also be set in _ss_environment.php with SS_SEND_ALL_EMAILS_FROM.
*
* @config
* @param string $send_all_emails_from Email-Address
*/
private static $send_all_emails_from = null;
/**
* @config
* @param string BCC every email generated by the Email class to the given address.
*/
private static $bcc_all_emails_to = null;
/**
* @config
* @param string CC every email generated by the Email class to the given address.
*/
private static $cc_all_emails_to = null;
/**
* Create a new email.
*/
public function __construct($from = null, $to = null, $subject = null, $body = null, $bounceHandlerURL = null,
$cc = null, $bcc = null) {
if($from != null) $this->from = $from;
if($to != null) $this->to = $to;
if($subject != null) $this->subject = $subject;
if($body != null) $this->body = $body;
if($cc != null) $this->cc = $cc;
if($bcc != null) $this->bcc = $bcc;
if($bounceHandlerURL != null) {
Deprecation::notice('3.1', 'Use "emailbouncehandler" module');
}
parent::__construct();
}
public function attachFileFromString($data, $filename, $mimetype = null) {
$this->attachments[] = array(
'contents' => $data,
'filename' => $filename,
'mimetype' => $mimetype,
);
return $this;
}
public function setBounceHandlerURL($bounceHandlerURL) {
Deprecation::notice('3.1', 'Use "emailbouncehandler" module');
}
public function attachFile($filename, $attachedFilename = null, $mimetype = null) {
if(!$attachedFilename) $attachedFilename = basename($filename);
$absoluteFileName = Director::getAbsFile($filename);
if(file_exists($absoluteFileName)) {
$this->attachFileFromString(file_get_contents($absoluteFileName), $attachedFilename, $mimetype);
} else {
user_error("Could not attach '$absoluteFileName' to email. File does not exist.", E_USER_NOTICE);
}
return $this;
}
public function Subject() {
return $this->subject;
}
public function Body() {
return $this->body;
}
public function To() {
return $this->to;
}
public function From() {
return $this->from;
}
public function Cc() {
return $this->cc;
}
public function Bcc() {
return $this->bcc;
}
public function setSubject($val) {
$this->subject = $val;
return $this;
}
public function setBody($val) {
$this->body = $val;
return $this;
}
public function setTo($val) {
$this->to = $val;
return $this;
}
public function setFrom($val) {
$this->from = $val;
return $this;
}
public function setCc($val) {
$this->cc = $val;
return $this;
}
public function setBcc($val) {
$this->bcc = $val;
return $this;
}
/**
* Set the "Reply-To" header with an email address.
* @param string $email The email address of the "Reply-To" header
*/
public function replyTo($email) {
$this->addCustomHeader('Reply-To', $email);
return $this;
}
/**
* Add a custom header to this value.
* Useful for implementing all those cool features that we didn't think of.
*
* @param string $headerName
* @param string $headerValue
*/
public function addCustomHeader($headerName, $headerValue) {
if($headerName == 'Cc') $this->cc = $headerValue;
else if($headerName == 'Bcc') $this->bcc = $headerValue;
else {
if(isset($this->customHeaders[$headerName])) $this->customHeaders[$headerName] .= ", " . $headerValue;
else $this->customHeaders[$headerName] = $headerValue;
}
return $this;
}
public function BaseURL() {
return Director::absoluteBaseURL();
}
/**
* Debugging help
*/
public function debug() {
$this->parseVariables();
return "<h2>Email template $this->class</h2>\n" .
"<p><b>From:</b> $this->from\n" .
"<b>To:</b> $this->to\n" .
"<b>Cc:</b> $this->cc\n" .
"<b>Bcc:</b> $this->bcc\n" .
"<b>Subject:</b> $this->subject</p>" .
$this->body;
}
/**
* Set template name (without *.ss extension).
*
* @param string $template
*/
public function setTemplate($template) {
$this->ss_template = $template;
return $this;
}
/**
* @return string
*/
public function getTemplate() {
return $this->ss_template;
}
protected function templateData() {
if($this->template_data) {
return $this->template_data->customise(array(
"To" => $this->to,
"Cc" => $this->cc,
"Bcc" => $this->bcc,
"From" => $this->from,
"Subject" => $this->subject,
"Body" => $this->body,
"BaseURL" => $this->BaseURL(),
"IsEmail" => true,
));
} else {
return $this;
}
}
/**
* Used by {@link SSViewer} templates to detect if we're rendering an email template rather than a page template
*/
public function IsEmail() {
return true;
}
/**
* Populate this email template with values.
* This may be called many times.
*/
public function populateTemplate($data) {
if($this->template_data) {
$this->template_data = $this->template_data->customise($data);
} else {
if(is_array($data)) $data = new ArrayData($data);
$this->template_data = $this->customise($data);
}
$this->parseVariables_done = false;
return $this;
}
/**
* Load all the template variables into the internal variables, including
* the template into body. Called before send() or debugSend()
* $isPlain=true will cause the template to be ignored, otherwise the GenericEmail template will be used
* and it won't be plain email :)
*/
protected function parseVariables($isPlain = false) {
$origState = Config::inst()->get('SSViewer', 'source_file_comments');
Config::inst()->update('SSViewer', 'source_file_comments', false);
if(!$this->parseVariables_done) {
$this->parseVariables_done = true;
// Parse $ variables in the base parameters
$data = $this->templateData();
// Process a .SS template file
$fullBody = $this->body;
if($this->ss_template && !$isPlain) {
// Requery data so that updated versions of To, From, Subject, etc are included
$data = $this->templateData();
$template = new SSViewer($this->ss_template);
if($template->exists()) {
$fullBody = $template->process($data);
}
}
// Rewrite relative URLs
$this->body = HTTP::absoluteURLs($fullBody);
}
Config::inst()->update('SSViewer', 'source_file_comments', $origState);
return $this;
}
/**
* Validates the email address. Returns true of false
*/
public static function validEmailAddress($address) {
if (function_exists('filter_var')) {
return filter_var($address, FILTER_VALIDATE_EMAIL);
} else {
return preg_match('#^([a-zA-Z0-9_+\.\-]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)'
. '|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$#', $address);
}
}
/**
* Send the email in plaintext.
*
* @see send() for sending emails with HTML content.
* @uses Mailer->sendPlain()
*
* @param string $messageID Optional message ID so the message can be identified in bounces etc.
* @return bool Success of the sending operation from an MTA perspective.
* Doesn't actually give any indication if the mail has been delivered to the recipient properly)
*/
public function sendPlain($messageID = null) {
Requirements::clear();
$this->parseVariables(true);
if(empty($this->from)) $this->from = Email::config()->admin_email;
$headers = $this->customHeaders;
if($messageID) $headers['X-SilverStripeMessageID'] = project() . '.' . $messageID;
if(project()) $headers['X-SilverStripeSite'] = project();
$to = $this->to;
$from = $this->from;
$subject = $this->subject;
if($sendAllTo = $this->config()->send_all_emails_to) {
$subject .= " [addressed to $to";
$to = $sendAllTo;
if($this->cc) $subject .= ", cc to $this->cc";
if($this->bcc) $subject .= ", bcc to $this->bcc";
$subject .= ']';
unset($headers['Cc']);
unset($headers['Bcc']);
} else {
if($this->cc) $headers['Cc'] = $this->cc;
if($this->bcc) $headers['Bcc'] = $this->bcc;
}
if($ccAllTo = $this->config()->cc_all_emails_to) {
if(!empty($headers['Cc']) && trim($headers['Cc'])) {
$headers['Cc'] .= ', ' . $ccAllTo;
} else {
$headers['Cc'] = $ccAllTo;
}
}
if($bccAllTo = $this->config()->bcc_all_emails_to) {
if(!empty($headers['Bcc']) && trim($headers['Bcc'])) {
$headers['Bcc'] .= ', ' . $bccAllTo;
} else {
$headers['Bcc'] = $bccAllTo;
}
}
if($sendAllfrom = $this->config()->send_all_emails_from) {
if($from) $subject .= " [from $from]";
$from = $sendAllfrom;
}
Requirements::restore();
return self::mailer()->sendPlain($to, $from, $subject, $this->body, $this->attachments, $headers);
}
/**
* Send an email with HTML content.
*
* @see sendPlain() for sending plaintext emails only.
* @uses Mailer->sendHTML()
*
* @param string $messageID Optional message ID so the message can be identified in bounces etc.
* @return bool Success of the sending operation from an MTA perspective.
* Doesn't actually give any indication if the mail has been delivered to the recipient properly)
*/
public function send($messageID = null) {
Requirements::clear();
$this->parseVariables();
if(empty($this->from)) $this->from = Email::config()->admin_email;
$headers = $this->customHeaders;
if($messageID) $headers['X-SilverStripeMessageID'] = project() . '.' . $messageID;
if(project()) $headers['X-SilverStripeSite'] = project();
$to = $this->to;
$from = $this->from;
$subject = $this->subject;
if($sendAllTo = $this->config()->send_all_emails_to) {
$subject .= " [addressed to $to";
$to = $sendAllTo;
if($this->cc) $subject .= ", cc to $this->cc";
if($this->bcc) $subject .= ", bcc to $this->bcc";
$subject .= ']';
unset($headers['Cc']);
unset($headers['Bcc']);
} else {
if($this->cc) $headers['Cc'] = $this->cc;
if($this->bcc) $headers['Bcc'] = $this->bcc;
}
if($ccAllTo = $this->config()->cc_all_emails_to) {
if(!empty($headers['Cc']) && trim($headers['Cc'])) {
$headers['Cc'] .= ', ' . $ccAllTo;
} else {
$headers['Cc'] = $ccAllTo;
}
}
if($bccAllTo = $this->config()->bcc_all_emails_to) {
if(!empty($headers['Bcc']) && trim($headers['Bcc'])) {
$headers['Bcc'] .= ', ' . $bccAllTo;
} else {
$headers['Bcc'] = $bccAllTo;
}
}
if($sendAllfrom = $this->config()->send_all_emails_from) {
if($from) $subject .= " [from $from]";
$from = $sendAllfrom;
}
Requirements::restore();
return self::mailer()->sendHTML($to, $from, $subject, $this->body, $this->attachments, $headers,
$this->plaintext_body);
}
/**
* Used as a default sender address in the {@link Email} class
* unless overwritten. Also shown to users on live environments
* as a contact address on system error pages.
*
* Used by {@link Email->send()}, {@link Email->sendPlain()}, {@link Debug->friendlyError()}.
*
* @deprecated 3.2 Use the "Email.admin_email" config setting instead
* @param string $newEmail
*/
public static function setAdminEmail($newEmail) {
Deprecation::notice('3.2', 'Use the "Email.admin_email" config setting instead');
Config::inst()->update('Email', 'admin_email', $newEmail);
}
/**
* @deprecated 3.2 Use the "Email.admin_email" config setting instead
* @return string
*/
public static function getAdminEmail() {
Deprecation::notice('3.2', 'Use the "Email.admin_email" config setting instead');
return Config::inst()->get('Email', 'admin_email');
}
/**
* Send every email generated by the Email class to the given address.
* It will also add " [addressed to (email), cc to (email), bcc to (email)]" to the end of the subject line
* This can be used when testing, by putting a command like this in your _config.php file
*
* if(!Director::isLive()) Email::send_all_emails_to("someone@example.com")
*
* @deprecated 3.2 Use the "Email.send_all_emails_to" config setting instead
*/
public static function send_all_emails_to($emailAddress) {
Deprecation::notice('3.2', 'Use the "Email.send_all_emails_to" config setting instead');
Config::inst()->update('Email', 'send_all_emails_to', $emailAddress);
}
/**
* CC every email generated by the Email class to the given address.
* It won't affect the original delivery in the same way that send_all_emails_to does. It just adds a CC header
* with the given email address. Note that you can only call this once - subsequent calls will overwrite the
* configuration variable.
*
* This can be used when you have a system that relies heavily on email and you want someone to be checking all
* correspondence.
*
* if(Director::isLive()) Email::cc_all_emails_to("supportperson@example.com")
*
* @deprecated 3.2 Use the "Email.cc_all_emails_to" config setting instead
*/
public static function cc_all_emails_to($emailAddress) {
Deprecation::notice('3.2', 'Use the "Email.cc_all_emails_to" config setting instead');
Config::inst()->update('Email', 'cc_all_emails_to', $emailAddress);
}
/**
* BCC every email generated by the Email class to the given address.
* It won't affect the original delivery in the same way that send_all_emails_to does. It just adds a BCC header
* with the given email address. Note that you can only call this once - subsequent calls will overwrite the
* configuration variable.
*
* This can be used when you have a system that relies heavily on email and you want someone to be checking all
* correspondence.
*
* if(Director::isLive()) Email::cc_all_emails_to("supportperson@example.com")
*
* @deprecated 3.2 Use the "Email.bcc_all_emails_to" config setting instead
*/
public static function bcc_all_emails_to($emailAddress) {
Deprecation::notice('3.2', 'Use the "Email.bcc_all_emails_to" config setting instead');
Config::inst()->update('Email', 'bcc_all_emails_to', $emailAddress);
}
/**
* Checks for RFC822-valid email format.
*
* @param string $str
* @return boolean
*
* @copyright Cal Henderson <cal@iamcal.com>
* This code is licensed under a Creative Commons Attribution-ShareAlike 2.5 License
* http://creativecommons.org/licenses/by-sa/2.5/
*/
public static function is_valid_address($email){
$qtext = '[^\\x0d\\x22\\x5c\\x80-\\xff]';
$dtext = '[^\\x0d\\x5b-\\x5d\\x80-\\xff]';
$atom = '[^\\x00-\\x20\\x22\\x28\\x29\\x2c\\x2e\\x3a-\\x3c'.
'\\x3e\\x40\\x5b-\\x5d\\x7f-\\xff]+';
$quoted_pair = '\\x5c[\\x00-\\x7f]';
$domain_literal = "\\x5b($dtext|$quoted_pair)*\\x5d";
$quoted_string = "\\x22($qtext|$quoted_pair)*\\x22";
$domain_ref = $atom;
$sub_domain = "($domain_ref|$domain_literal)";
$word = "($atom|$quoted_string)";
$domain = "$sub_domain(\\x2e$sub_domain)*";
$local_part = "$word(\\x2e$word)*";
$addr_spec = "$local_part\\x40$domain";
return preg_match("!^$addr_spec$!", $email) ? 1 : 0;
}
/**
* Encode an email-address to protect it from spambots.
* At the moment only simple string substitutions,
* which are not 100% safe from email harvesting.
*
* @todo Integrate javascript-based solution
*
* @param string $email Email-address
* @param string $method Method for obfuscating/encoding the address
* - 'direction': Reverse the text and then use CSS to put the text direction back to normal
* - 'visible': Simple string substitution ('@' to '[at]', '.' to '[dot], '-' to [dash])
* - 'hex': Hexadecimal URL-Encoding - useful for mailto: links
* @return string
*/
public static function obfuscate($email, $method = 'visible') {
switch($method) {
case 'direction' :
Requirements::customCSS(
'span.codedirection { unicode-bidi: bidi-override; direction: rtl; }',
'codedirectionCSS'
);
return '<span class="codedirection">' . strrev($email) . '</span>';
case 'visible' :
$obfuscated = array('@' => ' [at] ', '.' => ' [dot] ', '-' => ' [dash] ');
return strtr($email, $obfuscated);
case 'hex' :
$encoded = '';
for ($x=0; $x < strlen($email); $x++) $encoded .= '&#x' . bin2hex($email{$x}).';';
return $encoded;
default:
user_error('Email::obfuscate(): Unknown obfuscation method', E_USER_NOTICE);
return $email;
}
}
}