mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-06-29 07:59:31 +02:00
dffae1a2e7
This also removes the $global_mimetypes that was generating weird errors when both HTTP and Mailer classes tried to modify and use it. Support of finfo should be straightforward since PHP 5.3 includes that module that default
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 $customheaders
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* @return bool
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*/
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function sendPlain($to, $from, $subject, $plainContent, $attachedFiles = false, $customheaders = false) {
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return plaintextEmail($to, $from, $subject, $plainContent, $attachedFiles, $customheaders);
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}
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/**
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* Send a multi-part HTML email.
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*
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* @return bool
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*/
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function sendHTML($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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