mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
432 lines
15 KiB
PHP
432 lines
15 KiB
PHP
<?php
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/**
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* Mailer objects are responsible for actually sending emails.
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* The default Mailer class will use PHP's mail() function.
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*
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* @package framework
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* @subpackage email
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*/
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class Mailer extends Object {
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/**
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* Send a plain-text email.
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*
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* @param string $to
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* @param string $from
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* @param string §subject
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* @param string $plainContent
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* @param bool $attachedFiles
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* @param array $customheaders
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* @return bool
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*/
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public function sendPlain($to, $from, $subject, $plainContent, $attachedFiles = false, $customheaders = false) {
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return plaintextEmail($to, $from, $subject, $plainContent, $attachedFiles, $customheaders);
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}
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/**
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* Send a multi-part HTML email.
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*
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* @return bool
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*/
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public function sendHTML($to, $from, $subject, $htmlContent, $attachedFiles = false, $customheaders = false, $plainContent = false, $inlineImages = false) {
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return htmlEmail($to, $from, $subject, $htmlContent, $attachedFiles, $customheaders, $plainContent, $inlineImages);
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}
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}
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// TO DO: Clean this code up, make it more OO.
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// For now, we've just put a clean interface around this dirty code :)
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/*
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* Sends an email as a both HTML and plaintext
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* $attachedFiles should be an array of file names
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* - if you pass the entire $_FILES entry, the user-uploaded filename will be preserved
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* use $plainContent to override default plain-content generation
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*
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* @return bool
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*/
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function htmlEmail($to, $from, $subject, $htmlContent, $attachedFiles = false, $customheaders = false, $plainContent = false, $inlineImages = false) {
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if ($customheaders && is_array($customheaders) == false) {
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echo "htmlEmail($to, $from, $subject, ...) could not send mail: improper \$customheaders passed:<BR>";
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dieprintr($customheaders);
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}
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$bodyIsUnicode = (strpos($htmlContent,"&#") !== false);
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$plainEncoding = "";
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// We generate plaintext content by default, but you can pass custom stuff
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$plainEncoding = '';
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if(!$plainContent) {
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$plainContent = Convert::xml2raw($htmlContent);
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if(isset($bodyIsUnicode) && $bodyIsUnicode) $plainEncoding = "base64";
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}
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// If the subject line contains extended characters, we must encode the
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$subject = Convert::xml2raw($subject);
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$subject = "=?UTF-8?B?" . base64_encode($subject) . "?=";
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// Make the plain text part
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$headers["Content-Type"] = "text/plain; charset=utf-8";
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$headers["Content-Transfer-Encoding"] = $plainEncoding ? $plainEncoding : "quoted-printable";
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$plainPart = processHeaders($headers, ($plainEncoding == "base64") ? chunk_split(base64_encode($plainContent),60) : wordwrap(QuotedPrintable_encode($plainContent),75));
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// Make the HTML part
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$headers["Content-Type"] = "text/html; charset=utf-8";
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// Add basic wrapper tags if the body tag hasn't been given
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if(stripos($htmlContent, '<body') === false) {
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$htmlContent =
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"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">\n" .
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"<HTML><HEAD>\n" .
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"<META http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n" .
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"<STYLE type=\"text/css\"></STYLE>\n\n".
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"</HEAD>\n" .
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"<BODY bgColor=\"#ffffff\">\n" .
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$htmlContent .
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"\n</BODY>\n" .
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"</HTML>";
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}
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if($inlineImages) {
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$htmlPart = wrapImagesInline($htmlContent);
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} else {
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$headers["Content-Transfer-Encoding"] = "quoted-printable";
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$htmlPart = processHeaders($headers, wordwrap(QuotedPrintable_encode($htmlContent),75));
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}
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list($messageBody, $messageHeaders) = encodeMultipart(array($plainPart,$htmlPart), "multipart/alternative");
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// Messages with attachments are handled differently
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if($attachedFiles && is_array($attachedFiles)) {
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// The first part is the message itself
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$fullMessage = processHeaders($messageHeaders, $messageBody);
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$messageParts = array($fullMessage);
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// Include any specified attachments as additional parts
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foreach($attachedFiles as $file) {
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if(isset($file['tmp_name']) && isset($file['name'])) {
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$messageParts[] = encodeFileForEmail($file['tmp_name'], $file['name']);
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} else {
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$messageParts[] = encodeFileForEmail($file);
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}
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}
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// We further wrap all of this into another multipart block
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list($fullBody, $headers) = encodeMultipart($messageParts, "multipart/mixed");
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// Messages without attachments do not require such treatment
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} else {
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$headers = $messageHeaders;
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$fullBody = $messageBody;
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}
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// Email headers
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$headers["From"] = validEmailAddr($from);
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// Messages with the X-SilverStripeMessageID header can be tracked
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if(isset($customheaders["X-SilverStripeMessageID"]) && defined('BOUNCE_EMAIL')) {
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$bounceAddress = BOUNCE_EMAIL;
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} else {
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$bounceAddress = $from;
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}
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// Strip the human name from the bounce address
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if(preg_match('/^([^<>]*)<([^<>]+)> *$/', $bounceAddress, $parts)) $bounceAddress = $parts[2];
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// $headers["Sender"] = $from;
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$headers["X-Mailer"] = X_MAILER;
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if (!isset($customheaders["X-Priority"])) $headers["X-Priority"] = 3;
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$headers = array_merge((array)$headers, (array)$customheaders);
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// the carbon copy header has to be 'Cc', not 'CC' or 'cc' -- ensure this.
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if (isset($headers['CC'])) { $headers['Cc'] = $headers['CC']; unset($headers['CC']); }
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if (isset($headers['cc'])) { $headers['Cc'] = $headers['cc']; unset($headers['cc']); }
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// the carbon copy header has to be 'Bcc', not 'BCC' or 'bcc' -- ensure this.
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if (isset($headers['BCC'])) {$headers['Bcc']=$headers['BCC']; unset($headers['BCC']); }
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if (isset($headers['bcc'])) {$headers['Bcc']=$headers['bcc']; unset($headers['bcc']); }
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// Send the email
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$headers = processHeaders($headers);
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$to = validEmailAddr($to);
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// Try it without the -f option if it fails
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if(!($result = @mail($to, $subject, $fullBody, $headers, "-f$bounceAddress"))) {
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$result = mail($to, $subject, $fullBody, $headers);
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}
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return $result;
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}
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/*
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* Send a plain text e-mail
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*/
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function plaintextEmail($to, $from, $subject, $plainContent, $attachedFiles, $customheaders = false) {
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$plainEncoding = false; // Not ensurely where this is supposed to be set, but defined it false for now to remove php notices
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if ($customheaders && is_array($customheaders) == false) {
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echo "htmlEmail($to, $from, $subject, ...) could not send mail: improper \$customheaders passed:<BR>";
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dieprintr($customheaders);
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}
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// If the subject line contains extended characters, we must encode it
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$subject = Convert::xml2raw($subject);
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$subject = "=?UTF-8?B?" . base64_encode($subject) . "?=";
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// Make the plain text part
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$headers["Content-Type"] = "text/plain; charset=utf-8";
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$headers["Content-Transfer-Encoding"] = $plainEncoding ? $plainEncoding : "quoted-printable";
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$plainContent = ($plainEncoding == "base64") ? chunk_split(base64_encode($plainContent),60) : QuotedPrintable_encode($plainContent);
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// Messages with attachments are handled differently
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if($attachedFiles) {
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// The first part is the message itself
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$fullMessage = processHeaders($headers, $plainContent);
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$messageParts = array($fullMessage);
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// Include any specified attachments as additional parts
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foreach($attachedFiles as $file) {
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if(isset($file['tmp_name']) && isset($file['name'])) {
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$messageParts[] = encodeFileForEmail($file['tmp_name'], $file['name']);
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} else {
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$messageParts[] = encodeFileForEmail($file);
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}
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}
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// We further wrap all of this into another multipart block
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list($fullBody, $headers) = encodeMultipart($messageParts, "multipart/mixed");
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// Messages without attachments do not require such treatment
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} else {
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$fullBody = $plainContent;
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}
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// Email headers
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$headers["From"] = validEmailAddr($from);
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// Messages with the X-SilverStripeMessageID header can be tracked
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if(isset($customheaders["X-SilverStripeMessageID"]) && defined('BOUNCE_EMAIL')) {
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$bounceAddress = BOUNCE_EMAIL;
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// Get the human name from the from address, if there is one
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if(preg_match('/^([^<>]+)<([^<>])> *$/', $from, $parts))
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$bounceAddress = "$parts[1]<$bounceAddress>";
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} else {
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$bounceAddress = $from;
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}
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// $headers["Sender"] = $from;
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$headers["X-Mailer"] = X_MAILER;
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if(!isset($customheaders["X-Priority"])) {
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$headers["X-Priority"] = 3;
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}
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$headers = array_merge((array)$headers, (array)$customheaders);
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// the carbon copy header has to be 'Cc', not 'CC' or 'cc' -- ensure this.
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if (isset($headers['CC'])) { $headers['Cc'] = $headers['CC']; unset($headers['CC']); }
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if (isset($headers['cc'])) { $headers['Cc'] = $headers['cc']; unset($headers['cc']); }
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// Send the email
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$headers = processHeaders($headers);
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$to = validEmailAddr($to);
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// Try it without the -f option if it fails
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if(!$result = @mail($to, $subject, $fullBody, $headers, "-f$bounceAddress"))
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$result = mail($to, $subject, $fullBody, $headers);
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if($result)
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return array($to,$subject,$fullBody,$headers);
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return false;
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}
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function encodeMultipart($parts, $contentType, $headers = false) {
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$separator = "----=_NextPart_" . preg_replace('/[^0-9]/', '', rand() * 10000000000);
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$headers["MIME-Version"] = "1.0";
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$headers["Content-Type"] = "$contentType; boundary=\"$separator\"";
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$headers["Content-Transfer-Encoding"] = "7bit";
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if($contentType == "multipart/alternative") {
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//$baseMessage = "This is an encoded HTML message. There are two parts: a plain text and an HTML message, open whatever suits you better.";
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$baseMessage = "\nThis is a multi-part message in MIME format.";
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} else {
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//$baseMessage = "This is a message containing attachments. The e-mail body is contained in the first attachment";
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$baseMessage = "\nThis is a multi-part message in MIME format.";
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}
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$separator = "\n--$separator\n";
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$body = "$baseMessage\n" .
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$separator . implode("\n".$separator, $parts) . "\n" . trim($separator) . "--";
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return array($body, $headers);
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}
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/*
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* Return a multipart/related e-mail chunk for the given HTML message and its linked images
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* Decodes absolute URLs, accessing the appropriate local images
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*/
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function wrapImagesInline($htmlContent) {
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global $_INLINED_IMAGES;
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$_INLINED_IMAGES = null;
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$replacedContent = imageRewriter($htmlContent, 'wrapImagesInline_rewriter($URL)');
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// Make the HTML part
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$headers["Content-Type"] = "text/html; charset=utf-8";
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$headers["Content-Transfer-Encoding"] = "quoted-printable";
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$multiparts[] = processHeaders($headers, QuotedPrintable_encode($replacedContent));
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// Make all the image parts
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global $_INLINED_IMAGES;
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foreach($_INLINED_IMAGES as $url => $cid) {
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$multiparts[] = encodeFileForEmail($url, false, "inline", "Content-ID: <$cid>\n");
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}
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// Merge together in a multipart
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list($body, $headers) = encodeMultipart($multiparts, "multipart/related");
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return processHeaders($headers, $body);
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}
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function wrapImagesInline_rewriter($url) {
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$url = relativiseURL($url);
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global $_INLINED_IMAGES;
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if(!$_INLINED_IMAGES[$url]) {
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$identifier = "automatedmessage." . rand(1000,1000000000) . "@silverstripe.com";
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$_INLINED_IMAGES[$url] = $identifier;
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}
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return "cid:" . $_INLINED_IMAGES[$url];
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}
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/*
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* Combine headers w/ the body into a single string.
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*/
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function processHeaders($headers, $body = false) {
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$res = '';
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if(is_array($headers)) while(list($k, $v) = each($headers))
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$res .= "$k: $v\n";
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if($body) $res .= "\n$body";
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return $res;
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}
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/**
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* Encode the contents of a file for emailing, including headers
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*
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* $file can be an array, in which case it expects these members:
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* 'filename' - the filename of the file
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* 'contents' - the raw binary contents of the file as a string
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* and can optionally include these members:
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* 'mimetype' - the mimetype of the file (calculated from filename if missing)
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* 'contentLocation' - the 'Content-Location' header value for the file
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*
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* $file can also be a string, in which case it is assumed to be the filename
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*
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* h5. contentLocation
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*
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* Content Location is one of the two methods allowed for embedding images into an html email. It's also the simplest, and best supported
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*
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* Assume we have an email with this in the body:
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*
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* <img src="http://example.com/image.gif" />
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*
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* To display the image, an email viewer would have to download the image from the web every time it is displayed. Due to privacy issues, most
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* viewers will not display any images unless the user clicks 'Show images in this email'. Not optimal.
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*
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* However, we can also include a copy of this image as an attached file in the email. By giving it a contentLocation of "http://example.com/image.gif"
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* most email viewers will use this attached copy instead of downloading it. Better, most viewers will show it without a 'Show images in this email'
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* conformation.
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*
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* Here is an example of passing this information through Email.php:
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*
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* $email = new Email();
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* $email->attachments[] = array(
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* 'filename' => BASE_PATH . "/themes/mytheme/images/header.gif",
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* 'contents' => file_get_contents(BASE_PATH . "/themes/mytheme/images/header.gif"),
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* 'mimetype' => 'image/gif',
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* 'contentLocation' => Director::absoluteBaseURL() . "/themes/mytheme/images/header.gif"
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* );
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*
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*/
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function encodeFileForEmail($file, $destFileName = false, $disposition = NULL, $extraHeaders = "") {
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if(!$file) {
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user_error("encodeFileForEmail: not passed a filename and/or data", E_USER_WARNING);
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return;
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}
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if (is_string($file)) {
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$file = array('filename' => $file);
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$fh = fopen($file['filename'], "rb");
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if ($fh) {
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while(!feof($fh)) $file['contents'] .= fread($fh, 10000);
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fclose($fh);
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}
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}
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// Build headers, including content type
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if(!$destFileName) $base = basename($file['filename']);
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else $base = $destFileName;
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$mimeType = $file['mimetype'] ? $file['mimetype'] : HTTP::get_mime_type($file['filename']);
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if(!$mimeType) $mimeType = "application/unknown";
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if (empty($disposition)) $disposition = isset($file['contentLocation']) ? 'inline' : 'attachment';
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// Encode for emailing
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if (substr($file['mimetype'], 0, 4) != 'text') {
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$encoding = "base64";
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$file['contents'] = chunk_split(base64_encode($file['contents']));
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} else {
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// This mime type is needed, otherwise some clients will show it as an inline attachment
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$mimeType = 'application/octet-stream';
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$encoding = "quoted-printable";
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$file['contents'] = QuotedPrintable_encode($file['contents']);
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}
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$headers = "Content-type: $mimeType;\n\tname=\"$base\"\n".
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"Content-Transfer-Encoding: $encoding\n".
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"Content-Disposition: $disposition;\n\tfilename=\"$base\"\n" ;
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if ( isset($file['contentLocation']) ) $headers .= 'Content-Location: ' . $file['contentLocation'] . "\n" ;
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$headers .= $extraHeaders . "\n";
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// Return completed packet
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return $headers . $file['contents'];
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}
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function QuotedPrintable_encode($quotprint) {
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$quotprint = (string) str_replace('\r\n',chr(13).chr(10),$quotprint);
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$quotprint = (string) str_replace('\n', chr(13).chr(10),$quotprint);
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$quotprint = (string) preg_replace("~([\x01-\x1F\x3D\x7F-\xFF])~e", "sprintf('=%02X', ord('\\1'))", $quotprint);
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//$quotprint = (string) str_replace('\=0D=0A',"=0D=0A",$quotprint);
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$quotprint = (string) str_replace('=0D=0A',"\n",$quotprint);
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$quotprint = (string) str_replace('=0A=0D',"\n",$quotprint);
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$quotprint = (string) str_replace('=0D',"\n",$quotprint);
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$quotprint = (string) str_replace('=0A',"\n",$quotprint);
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return (string) $quotprint;
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}
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function validEmailAddr($emailAddress) {
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$emailAddress = trim($emailAddress);
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$angBrack = strpos($emailAddress, '<');
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if($angBrack === 0) {
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$emailAddress = substr($emailAddress, 1, strpos($emailAddress,'>')-1);
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} else if($angBrack) {
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$emailAddress = str_replace('@', '', substr($emailAddress, 0, $angBrack))
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.substr($emailAddress, $angBrack);
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}
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return $emailAddress;
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}
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