You may wish to send HTML emails to your users, but sending only HTML may not be a good idea as some users email client may reject emails that are not Plain Text.
This [MOD] allows you to send a two part message: - Plain Text and HTML. Email clients configured to show HTML will do so, those which only show Plain Text will show that part of the message.
To install the [MOD]:
Find: includes/email.php and back up the file (eg change the name to email_old.php).
Upload the new includes/email.php
<?php
/**************************************************************************
* *
* 4images - A Web Based Image Gallery Management System *
* ---------------------------------------------------------------- *
* *
* File: email.php *
* Copyright: (C) 2002 Jan Sorgalla *
* Email: jan@4homepages.de *
* Web: http://www.4homepages.de *
* Scriptversion: 1.7.1 *
* *
* Never released without support from: Nicky (http://www.nicky.net) *
* *
**************************************************************************
* *
* Dieses Script ist KEINE Freeware. Bitte lesen Sie die Lizenz- *
* bedingungen (Lizenz.txt) für weitere Informationen. *
* --------------------------------------------------------------- *
* This script is NOT freeware! Please read the Copyright Notice *
* (Licence.txt) for further information. *
* *
*************************************************************************/
if (!defined('ROOT_PATH')) {
die("Security violation");
}
class Email {
var $auth_type = "LOGIN"; // Default: "LOGIN". Set to "PLAIN" if required.
var $no_error = 0;
var $use_smtp;
var $to;
var $subject;
var $body;
var $bcc = array();
var $from = "";
var $from_email = "";
var $word_wrap = 76;
var $template_extension = "html";
var $start = "{";
var $end = "}";
var $key_cache = array();
var $val_cache = array();
var $crlf = "\r\n";
function Email() {
global $config;
$this->use_smtp = ($config['use_smtp'] == 1) ? 1 : 0;
$this->smtp_auth = (!empty($config['smtp_username']) && !empty($config['smtp_password'])) ? 1 : 0;
$this->crlf = ($this->use_smtp) ? "\r\n" : "\n";
$this->mime_boundary = "==Multipart_Boundary_".md5(uniqid(time()));
$this->html_header = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">\n<html>\n<head>\n<meta http-equiv=Content-Type content=\"text/html; charset=\"".$lang['charset']."\">\n";
$this->html_footer = "</body>\n</html>";
}
function set_from($email, $name = "") {
$this->from_email = $email;
$this->from = sprintf("Return-Path: %s".$this->crlf, $email);
$this->from .= ($name != "") ? sprintf("From: %s <%s>".$this->crlf, $name, $email) : sprintf("From: %s".$this->crlf, $email);
}
function set_to($to) {
$this->to = $to;
}
function set_subject($subject) {
$this->subject = $subject;
}
function register_vars($var_name, $value = "") {
if (!is_array($var_name)) {
if (!empty($var_name)) {
$this->key_cache[$var_name] = "/".$this->add_identifiers($var_name)."/";
$this->val_cache[$var_name] = $value;
}
}
else {
foreach ($var_name as $key => $val) {
if (!empty($key)) {
$this->key_cache[$key] = "/".$this->add_identifiers($key)."/";
$this->val_cache[$key] = $val;
}
}
}
}
function add_identifiers($var_name) {
return preg_quote($this->start.$var_name.$this->end);
}
function get_template($template, $lang) {
$path = ROOT_PATH."lang/".$lang."/email/".$template.".".$this->template_extension;
$line = @implode("", @file($path));
if (empty($line)) {
$this->error("Couldn't open Template ".$path);
}
return $line;
}
function prepare_text($message) {
$message = preg_replace("/\r\n/si", "\n", $message);
if ($this->word_wrap) {
$lines = explode("\n", $message);
$message = "";
for ($i = 0 ;$i < sizeof($lines); $i++) {
$line_part = explode(" ", trim($lines[$i]));
$buf = "";
for ($j = 0; $j < count($line_part); $j++) {
$buf_o = $buf;
$buf .= (($j == 0) ? "" : " ").$line_part[$j];
if (strlen($buf) > $this->word_wrap && $buf_o != "") {
$message .= $buf_o.$this->crlf;
$buf = $line_part[$j];
}
}
$message .= $buf.$this->crlf;
}
}
return $message;
}
function set_body($template_name = "", $lang = "deutsch") {
$template_name = trim($template_name);
$body = "";
if ($template_name != "") {
$template = $this->get_template($template_name, $lang);
$body = preg_replace($this->key_cache, $this->val_cache, $template);
if ($this->send_as_html){
$html_body = preg_replace("/\r\n/si", "", $body);
$html_body = $this->html_header.$this->email_style."<body>\n".$html_body.$this->html_footer;
$text_body = strip_tags($body);
$body = "This is a multi-part message in MIME format.\n\n" .
"--{$this->mime_boundary}\n" .
"Content-Type: text/plain; charset=\"".$lang['charset']."\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
"{$text_body}\n" .
"--{$this->mime_boundary}\n" .
"Content-Type: text/html; charset=\"".$lang['charset']."\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
"{$html_body}\n" .
"--{$this->mime_boundary}--";
}
else {
$body = strip_tags($body);
}
}
$this->body = ((!empty($this->body)) ? $this->body : "").$this->prepare_text($body);
}
function set_simple_body($body = "") {
$this->body = ((!empty($this->body)) ? $this->body : "").$this->prepare_text($body);
}
function set_bcc($bcc) {
foreach ($bcc as $val) {
$val = trim($val);
if (preg_match('/^[-!#$%&\'*+\\.\/0-9=?A-Z^_`{|}~]+@([-0-9A-Z]+\.)+([0-9A-Z]){2,4}$/i', $val)) {
$this->bcc[] = $val;
}
}
}
function create_header() {
global $config;
$header = "";
if (empty($this->from)) {
$header .= sprintf("Return-Path: %s\r\n", $config['site_email']);
$header .= sprintf("From: %s\r\n", $config['site_email']);
}
else {
$header .= $this->from;
}
if (!empty($this->bcc) && !$this->use_smtp) {
$bcc_list = "";
foreach ($this->bcc as $key => $val) {
$bcc_list .= (($bcc_list != "") ? ", " : "").$val;
}
$header .= sprintf("Bcc: %s\r\n", $bcc_list);
}
//$header .= sprintf("Subject: %s\r\n", $this->subject);
$header .= "Date: " . date("r") ."\r\n";
if ($this->send_as_html){
$header .= "MIME-Version: 1.0\r\n" .
"Content-Type:multipart/alternative;\n" .
" boundary=\"{$this->mime_boundary}\"\r\n";
}
return $header;
}
function send_email() {
if ($this->use_smtp) {
return ($this->smtp_mail($this->to, $this->subject, $this->body, $this->create_header())) ? 1 : 0;
}
else {
return (mail($this->to, $this->subject, $this->body, $this->create_header())) ? 1 : 0;
//echo $this->send_as_html;
//exit;
}
}
function smtp_mail($mail_to, $subject, $body, $headers = "") {
global $config;
$ok = 1;
if (empty($config['smtp_host'])) {
$config['smtp_host'] = "localhost";
}
// open socket.
$fp = fsockopen($config['smtp_host'], 25);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 220) {
$ok = 0;
$this->error("Invalid mail server response (service not ready?): $result", 1);
}
// send helo
if ($this->smtp_auth) {
fputs($fp, "EHLO ".$config['smtp_host'].$this->crlf);
/**
* Patch by forum user blueshift. Thanks!
*/
// not ok until first valid server response
$ok = 0;
// fetch response line after line
while (!feof($fp)) {
$result = fgets($fp, 1024);
if (strlen($result)!=0) {
if (substr($result, 0, 3) == 250) {
$ok = 1;
// lower timeout after first valid response
if (function_exists('stream_set_timeout')) {
stream_set_timeout($fp, 1);
}
}
else {
// reset ok on error
$ok = 0;
break;
}
}
else {
// EOF
break;
}
}
if ($ok == 0) {
$this->error("EHLO invalid mail server response: $result", 1);
}
if (function_exists('stream_set_timeout')) {
// reset timeout for subsequent ops
stream_set_timeout($fp, 30);
}
if (strtoupper($this->auth_type) == "PLAIN") {
fputs($fp, "AUTH PLAIN ".base64_encode($config['smtp_username'].chr(0).$config['smtp_password']).$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 235) {
$ok = 0;
$this->error("AUTH PLAIN invalid mail server response: $result<br /> Maybe your SMTP Server does'nt support authentification. Try to leave Username and Password blank in your settings.", 1);
}
}
else {
fputs($fp, "AUTH LOGIN".$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 334) {
$ok = 0;
$this->error("AUTH LOGIN invalid mail server response: $result<br /> Maybe your SMTP Server does'nt support authentification. Try to leave Username and Password blank in your settings.", 1);
}
fputs($fp, base64_encode($config['smtp_username']).$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 334) {
$ok = 0;
$this->error("USERNAME invalid mail server response: $result", 1);
}
fputs($fp, base64_encode($config['smtp_password']).$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 235) {
$ok = 0;
$this->error("PASSWORD invalid mail server response: $result", 1);
}
}
}
else {
fputs($fp, "HELO ".$config['smtp_host'].$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 250) {
$ok = 0;
$this->error("HELO invalid mail server response: $result", 1);
}
}
// MAIL FROM
if (empty($this->from_email)) {
$this->from_email = $config['site_email'];
}
fputs($fp, "MAIL FROM: ".$this->from_email.$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 250) {
$ok = 0;
$this->error("MAIL FROM invalid mail server response: $result", 1);
}
// RCPT TO
$mail_to_array = explode(",", $mail_to);
$to_header = "To: ";
foreach ($mail_to_array as $key => $val) {
$val = trim($val);
fputs($fp, "RCPT TO: <$val>".$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 250) {
$ok = 0;
$this->error("RCPT TO invalid mail server response: $result", 1);
}
$to_header .= "<$val>, ";
}
$to_header = ereg_replace(", $", "", $to_header);
if (!empty($this->bcc)) {
foreach ($this->bcc as $key => $val) {
fputs($fp, "RCPT TO: <$val>".$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 250) {
$ok = 0;
$this->error("RCPT TO invalid mail server response: $result", 1);
}
//$to_header .= "<$val>, ";
}
//$to_header = ereg_replace(", $", "", $to_header);
}
// DATA
fputs($fp, "DATA".$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 354) {
$ok = 0;
$this->error("DATA invalid mail server response: $result", 1);
}
// Send subject
fputs($fp, "Subject: $subject".$this->crlf);
// Send headers
fputs($fp, $to_header.$this->crlf);
$headers = preg_replace("/([^\r]{1})\n/", "\\1\r\n", $headers);
fputs($fp, $headers.$this->crlf.$this->crlf);
// Send body
$body = preg_replace("/([^\r]{1})\n/", "\\1\r\n", $body);
$body = preg_replace("/\n\n/", "\n\r\n", $body);
$body = preg_replace("/\n\./", "\n..", $body);
fputs($fp, $body.$this->crlf);
// End of DATA: CRLF.CRLF
fputs($fp, $this->crlf.".".$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 250) {
$ok = 0;
$this->error("DATA(end): invalid mail server response: $result", 1);
}
// QUIT
fputs($fp, "QUIT".$this->crlf);
$result = fgets($fp, 1024);
if (substr($result, 0, 3) != 221) {
$ok = 0;
$this->error("QUIT: invalid mail server response: $result", 1);
}
// Close connection
fclose($fp);
return $ok;
}
function reset($reset_template_vars = 0) {
$this->to = "";
$this->subject = "";
$this->body = "";
$this->bcc = array();
$this->from = "";
$this->from_email = "";
if ($reset_template_vars) {
$this->key_cache = array();
$this->val_cache = array();
}
}
function error($errmsg, $halt = 0) {
if (!$this->no_error) {
echo "<br /><font color='#FF0000'><b>Email Error</b></font>: ".$errmsg."<br />";
if ($halt) {
exit;
}
}
}
function set_send_html($style_file = "") {
$style_file = trim($style_file);
$style_file = TEMPLATE_PATH."/".$style_file.".css";
if (file_exists($style_file)) {
$this->email_style = "<STYLE TYPE=\"text/css\">\n". implode('', file($style_file)) ."</STYLE>\n";
}
$this->send_as_html = 1;
}
} // end of class
?>
This new script should work as the 'old' script unless you trigger the need to send a two part message. This is done by adding
$site_email->set_send_html("email_style");
to any other script calling the email.php class. This line MUST be added before any line setting the body of the email eg:
$site_email->set_send_html("email_style");
$site_email->set_body("val_rej_email", $config['language_dir']);
The argument "email_style" defines the css file used to specify the style of the email. This can be any name you choose, or may be left out eg:
$site_email->set_send_html("my_own_style");
or,
$site_email->set_send_html();
If argument is set, a file of that name containing standard css should be created, and saved in the relevant templates folder. The filetype should be css, eg email_style.css
An example css file would be:body {
background:#FFFFFF;
color:#283840;
font:12px/14px verdana, arial, helvetica, sans serif;
}
td.message {
border: 1px solid #C0DFED;
padding: 0px 5px 0px 5px;
background-color: #F6FBFD;
}
ul, li, p,td {
color: #000000;
font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
line-height : 14px;
background-color : transparent;
}
p.smalltext {
font-family: Tahoma,Verdana,Arial,Helvetica,sans-serif;
font-size: 11px;
font-weight: normal;
background-color : transparent;
}
The script has been tested with the php mail() function, but has not been tested with SMTP.
Different email clients display css in theirr own way (I understand that Hotmail does not display CSS html at all), so you may get varying results fro those you expect.
Now add HTML tags to your email template(s), found in lang/{your lang}/email. These tags are removed by the script to send the Plain Text part of the message.
Experiment and enjoy!
Note: Code updated 12/06/2005
