fusionpbx/resources/classes/email.php

639 lines
21 KiB
PHP

<?php
/*-
* Copyright (c) 2022 - 2023 Mark J Crane <markjcrane@fusionpbx.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/**
* email class
*
*/
class email {
/**
* declare the variables
*/
private $app_name;
private $app_uuid;
private $name;
public $domain_uuid;
public $method;
public $recipients;
public $subject;
public $body;
public $from_address;
public $from_name;
public $priority;
public $debug_level;
public $attachments;
public $read_confirmation;
public $error;
public $response;
private $settings;
/**
* called when the object is created
*/
public function __construct($params = []) {
//assign the variables
$this->app_name = 'email';
$this->name = 'email';
$this->app_uuid = '7a4fef67-5bf8-436a-ae25-7e3c03afcf96';
$this->priority = 0;
$this->debug_level = 3;
$this->read_confirmation = false;
//set the domain_uuid
$this->domain_uuid = $params['domain_uuid'] ?? $_SESSION['domain_uuid'] ?? '';
if (isset($params['settings'])) {
$this->settings = $params['settings'];
}
//set the database from the settings object if available
if ($this->settings instanceof settings && !isset($this->database)) {
$this->database = $this->settings->database();
}
//ensure we have a valid database object
if (!($this->database instanceof database)) {
$this->database = $params['database'] ?? database::new();
}
//ensure we have a valid settings object
if (!($this->settings) instanceof settings) {
$this->settings = new settings(['database' => $this->database, 'domain_uuid' => $this->domain_uuid]);
}
}
/**
* parse raw emails
*/
public function parse($message) {
//includes
require_once('resources/pop3/mime_parser.php');
require_once('resources/pop3/rfc822_addresses.php');
if (file_exists($_SERVER["PROJECT_ROOT"]."/app/emails/email_transcription.php")) {
require_once($_SERVER["PROJECT_ROOT"]."/app/emails/email_transcription.php");
}
//parse the email message
$mime = new mime_parser_class;
$mime->decode_bodies = 1;
$parameters = array(
//'File'=>$message_file,
// Read a message from a string instead of a file
'Data' => $message,
// Save the message body parts to a directory
// 'SaveBody' => '/tmp',
// Do not retrieve or save message body parts
// 'SkipBody' => 1,
);
$success = $mime->Decode($parameters, $decoded);
unset($parameters);
if (!$success) {
echo "MIME message decoding error: ".HtmlSpecialChars($mime->error)."\n";
}
else {
//get the headers
$this->headers = json_decode($decoded[0]["Headers"]["x-headers:"], true);
$this->subject = $decoded[0]["Headers"]["subject:"];
$this->from_name = $decoded[0]["ExtractedAddresses"]["from:"][0]["name"];
$this->from_address = $decoded[0]["ExtractedAddresses"]["from:"][0]["address"];
$this->reply_to = $decoded[0]["Headers"]["reply-to:"];
$this->recipients = $decoded[0]["ExtractedAddresses"]["to:"];
$this->date = $decoded[0]["Headers"]["date:"];
//debug information
//view_array($decoded[0]);
//view_array($this);
//view_array($this->recipients);
//get the body
$this->body = ''; //$parts_array["Parts"][0]["Headers"]["content-type:"];
//get the body
$this->body = '';
$this->content_type = $decoded[0]['Headers']['content-type:'];
if (substr($this->content_type, 0, 15) == "multipart/mixed" || substr($this->content_type, 0, 21) == "multipart/alternative") {
foreach ($decoded[0]["Parts"] as $row) {
$body_content_type = $row["Headers"]["content-type:"];
if (substr($body_content_type, 0, 9) == "text/html") {
$this->body = $row["Body"];
}
if (substr($body_content_type, 0, 10) == "text/plain") {
$body_plain = $row["Body"];
$this->body = $body_plain;
}
}
}
else {
$content_type_array = explode(";", $content_type);
$this->body = $decoded[0]["Body"];
//if ($content_type_array[0] == "text/html" || $content_type_array[0] == "text/plain") {
// $body = $row["Body"];
//}
}
//get the attachments and add to the email
$x = 0;
foreach ($decoded[0]["Parts"] as $parts_array) {
//image/tiff;name="testfax.tif"
//text/plain; charset=ISO-8859-1; format=flowed
$content_type = $parts_array["Parts"][0]["Headers"]["content-type:"];
//base64, 7bit
$content_transfer_encoding = $parts_array["Parts"][0]["Headers"]["content-transfer-encoding:"];
//inline;filename="testfax.tif"
$content_disposition = $parts_array["Parts"][0]["Headers"]["content-disposition"];
//testfax.tif
$file = $parts_array["FileName"];
//inline
$filedisposition = $parts_array["FileDisposition"];
$body_part = $parts_array["BodyPart"];
$body_length = $parts_array["BodyLength"];
if (!empty($file)) {
//get the file information
$file_ext = pathinfo($file, PATHINFO_EXTENSION);
$file_name = substr($file, 0, (strlen($file) - strlen($file_ext))-1 );
$encoding = "base64"; //base64_decode
switch ($file_ext){
case "wav":
$mime_type = "audio/x-wav";
break;
case "mp3":
$mime_type = "audio/x-mp3";
break;
case "pdf":
$mime_type = "application/pdf";
break;
case "tif":
$mime_type = "image/tiff";
break;
case "tiff":
$mime_type = "image/tiff";
break;
default:
$mime_type = "binary/octet-stream";
break;
}
//add attachment(s)
$this->attachments[$x]['type'] = 'string';
$this->attachments[$x]['name'] = $file;
$this->attachments[$x]['value'] = $parts_array["Body"];
//increment the id
$x++;
}
}
}
}
/**
* send emails
*/
public function send() {
//set the send_method if not already set
if (!isset($this->method)) {
if ($this->settings->get('email_queue','enabled', true)) {
$this->method = 'queue';
}
else {
$this->method = 'direct';
}
}
//add the email to the queue
if ($this->method == 'queue') {
//add the email_queue_uuid
$email_queue_uuid = uuid();
//set the email from address and name
$email_from = $this->from_address;
if (!empty($this->from_name)) {
$email_from = $this->from_name.'<'.$email_from.'>';
}
//prepare the array
$array['email_queue'][0]['email_queue_uuid'] = $email_queue_uuid;
$array['email_queue'][0]['domain_uuid'] = $this->domain_uuid;
$array['email_queue'][0]['hostname'] = gethostname();
$array['email_queue'][0]['email_date'] = 'now()';
$array['email_queue'][0]['email_from'] = $email_from;
$array['email_queue'][0]['email_to'] = $this->recipients;
$array['email_queue'][0]['email_subject'] = $this->subject;
$array['email_queue'][0]['email_body'] = $this->body;
$array['email_queue'][0]['email_status'] = 'waiting';
$array['email_queue'][0]['email_retry_count'] = null;
//$array['email_queue'][0]['email_action_before'] = $email_action_before;
//$array['email_queue'][0]['email_action_after'] = $email_action_after;
//add email attachments
if (is_array($this->attachments) && sizeof($this->attachments) > 0) {
$y = 0;
foreach ($this->attachments as $attachment) {
//set the name of the file, determine extension
if ($attachment['path'] && $attachment['name']) {
if (file_exists($attachment['path'] && $attachment['name'])) {
$attachment['type'] = strtolower(pathinfo($attachment['name'], PATHINFO_EXTENSION));
}
}
else if ($attachment['value']) {
//old method
if (strlen($attachment['value']) < 255 && file_exists($attachment['value'])) {
$attachment['name'] = $attachment['name'] != '' ? $attachment['name'] : basename($attachment['value']);
$attachment['path'] = pathinfo($attachment['value'], PATHINFO_DIRNAME);
$attachment['type'] = strtolower(pathinfo($attachment['value'], PATHINFO_EXTENSION));
}
}
//set the mime type
switch ($attachment['type']) {
case "jpg":
case "jpeg":
$attachment['mime_type'] = 'image/jpeg';
break;
case "gif":
$attachment['mime_type'] = 'image/gif';
break;
case "png":
$attachment['mime_type'] = 'image/png';
break;
case "pdf":
$attachment['mime_type'] = 'application/pdf';
break;
case "tif":
case "tiff":
$attachment['mime_type'] = 'image/tiff';
break;
case "mp3":
$attachment['mime_type'] = 'audio/mpeg';
break;
case "wav":
$attachment['mime_type'] = 'audio/x-wav';
break;
case "opus":
$attachment['mime_type'] = 'audio/opus';
break;
case "ogg":
$attachment['mime_type'] = 'audio/ogg';
break;
default:
$attachment['mime_type'] = 'binary/octet-stream';
}
//add the attachments to the array
$array['email_queue_attachments'][$y]['email_queue_attachment_uuid'] = uuid();
$array['email_queue_attachments'][$y]['email_queue_uuid'] = $email_queue_uuid;
$array['email_queue_attachments'][$y]['domain_uuid'] = $this->domain_uuid;
$array['email_queue_attachments'][$y]['email_attachment_mime_type'] = $attachment['mime_type'];
$array['email_queue_attachments'][$y]['email_attachment_type'] = $attachment['type'];
$array['email_queue_attachments'][$y]['email_attachment_name'] = $attachment['name'];
$array['email_queue_attachments'][$y]['email_attachment_path'] = $attachment['path'];
$array['email_queue_attachments'][$y]['email_attachment_base64'] = $attachment['base64'];
$y++;
}
}
//add temporary permissions
$p = permissions::new();
$p->add("email_queue_add", 'temp');
$p->add("email_queue_attachment_add", 'temp');
//save the dialplan
$this->database->app_name = 'email';
$this->database->app_uuid = 'e24b5dab-3bcc-42e8-99c1-19b0c558c2d7';
$this->database->save($array);
//$dialplan_response = $this->database->message;
unset($array);
//remove temporary permissions
$p->delete("dialplan_add", 'temp');
$p->delete("dialplan_detail_add", 'temp');
//return a human readable response for debugging
if ($this->database->message['message'] == 'OK') {
return "Added to queue";
} else {
//return the SQL server message
return $this->database->message['message'];
}
}
//send the email directly
if ($this->method == 'direct') {
/*
RECIPIENTS NOTE:
Pass in a single email address...
user@domain.com
Pass in a comma or semi-colon delimited string of e-mail addresses...
user@domain.com,user2@domain2.com,user3@domain3.com
user@domain.com;user2@domain2.com;user3@domain3.com
Pass in a simple array of email addresses...
Array (
[0] => user@domain.com
[1] => user2@domain2.com
[2] => user3@domain3.com
)
Pass in a multi-dimentional array of addresses (delivery, address, name)...
Array (
[0] => Array (
[delivery] => to
[address] => user@domain.com
[name] => user 1
)
[1] => Array (
[delivery] => cc
[address] => user2@domain2.com
[name] => user 2
)
[2] => Array (
[delivery] => bcc
[address] => user3@domain3.com
[name] => user 3
)
)
ATTACHMENTS NOTE:
Pass in as many files as necessary in an array in the following format...
Array (
[0] => Array (
[mime_type] => image/jpeg (will be determined by file extension, if empty)
[name] => filename.ext
[path] => /source/folder/ (not used if base64 content)
[base64] => file content as base64 (not used if name and path set)
[cid] => content id of file attachment (only used if referencing attached files in body content)
)
[1] => Array (
...
)
)
ERROR RESPONSE:
Error messages are stored in the variable passed into $this->error BY REFERENCE
*/
try {
//include the phpmailer classes
include_once("resources/phpmailer/class.phpmailer.php");
include_once("resources/phpmailer/class.smtp.php");
//use the email default settings
if (!empty($this->settings->get('email','smtp_hostname'))) {
$smtp['hostname'] = $this->settings->get('email','smtp_hostname');
}
$smtp['host'] = (!empty($this->settings->get('email','smtp_host')) ? $this->settings->get('email','smtp_host'): '127.0.0.1');
if (!empty($this->settings->get('email','smtp_port'))) {
$smtp['port'] = (int)$this->settings->get('email','smtp_port');
}
else {
$smtp['port'] = 0;
}
$smtp['secure'] = $this->settings->get('email','smtp_secure');
$smtp['auth'] = $this->settings->get('email','smtp_auth');
$smtp['username'] = $this->settings->get('email','smtp_username');
$smtp['password'] = $this->settings->get('email','smtp_password');
$smtp['from'] = $this->settings->get('voicemail','smtp_from') ?? $this->settings->get('email','smtp_from');
$smtp['from_name'] = $this->settings->get('voicemail','smtp_from_name') ?? $this->settings->get('email','smtp_from_name');
$smtp['validate_certificate'] = $this->settings->get('email','smtp_validate_certificate', true);
$smtp['crypto_method'] = $this->settings->get('email','smtp_crypto_method') ?? null;
//override the domain-specific smtp server settings, if any
$sql = "select domain_setting_subcategory, domain_setting_value ";
$sql .= "from v_domain_settings ";
$sql .= "where domain_uuid = :domain_uuid ";
$sql .= "and (domain_setting_category = 'email' or domain_setting_category = 'voicemail') ";
$sql .= "and domain_setting_enabled = 'true' ";
$parameters['domain_uuid'] = $this->domain_uuid;
$result = $this->database->select($sql, $parameters, 'all');
if (is_array($result) && @sizeof($result) != 0) {
foreach ($result as $row) {
if ($row['domain_setting_value'] != '') {
$smtp[str_replace('smtp_','',$row["domain_setting_subcategory"])] = $row['domain_setting_value'];
}
}
}
unset($sql, $parameters, $result, $row);
//value adjustments
$smtp['auth'] = ($smtp['auth'] == "true") ? true : false;
$smtp['password'] = ($smtp['password'] != '') ? $smtp['password'] : null;
$smtp['secure'] = ($smtp['secure'] != "none") ? $smtp['secure'] : null;
$smtp['username'] = ($smtp['username'] != '') ? $smtp['username'] : null;
//create the email object and set general settings
$mail = new PHPMailer();
$mail->IsSMTP();
if (!empty($smtp['hostname'])) {
$mail->Hostname = $smtp['hostname'];
}
$mail->Host = $smtp['host'];
if (is_numeric($smtp['port'])) {
$mail->Port = $smtp['port'];
}
if ($smtp['auth'] == "true") {
$mail->SMTPAuth = true;
$mail->Username = $smtp['username'];
$mail->Password = $smtp['password'];
}
else {
$mail->SMTPAuth = false;
}
$smtp_secure = true;
if ($smtp['secure'] == "") {
$mail->SMTPSecure = 'none';
$mail->SMTPAutoTLS = false;
$smtp_secure = false;
}
elseif ($smtp['secure'] == "none") {
$mail->SMTPSecure = 'none';
$mail->SMTPAutoTLS = false;
$smtp_secure = false;
}
else {
$mail->SMTPSecure = $smtp['secure'];
}
if ($smtp_secure && isset($smtp['validate_certificate']) && !$smtp['validate_certificate']) {
//bypass certificate check e.g. for self-signed certificates
$smtp_options['ssl']['verify_peer'] = false;
$smtp_options['ssl']['verify_peer_name'] = false;
$smtp_options['ssl']['allow_self_signed'] = true;
}
//used to set the SSL version
if ($smtp_secure && isset($smtp['crypto_method'])) {
$smtp_options['ssl']['crypto_method'] = $smtp['crypto_method'];
}
//add SMTP Options if the array exists
if (is_array($smtp_options)) {
$mail->SMTPOptions = $smtp_options;
}
$this->from_address = ($this->from_address != '') ? $this->from_address : $smtp['from'];
$this->from_name = ($this->from_name != '') ? $this->from_name : $smtp['from_name'];
$mail->SetFrom($this->from_address, $this->from_name);
$mail->AddReplyTo($this->from_address, $this->from_name);
$mail->Subject = $this->subject;
$mail->MsgHTML($this->body);
$mail->Priority = $this->priority;
if ($this->read_confirmation) {
$mail->AddCustomHeader('X-Confirm-Reading-To: '.$this->from_address);
$mail->AddCustomHeader('Return-Receipt-To: '.$this->from_address);
$mail->AddCustomHeader('Disposition-Notification-To: '.$this->from_address);
}
if (is_numeric($this->debug_level) && $this->debug_level > 0) {
$mail->SMTPDebug = $this->debug_level;
}
$mail->Timeout = 20; //set the timeout (seconds)
$mail->SMTPKeepAlive = true; //don't close the connection between messages
//add the email recipients
$address_found = false;
if (!is_array($this->recipients)) { // must be a single or delimited recipient address(s)
$this->recipients = str_replace(' ', '', $this->recipients);
$this->recipients = str_replace(',', ';', $this->recipients);
$this->recipients = explode(';', $this->recipients); // convert to array of addresses
}
foreach ($this->recipients as $this->recipient) {
if (is_array($this->recipient)) { // check if each recipient has multiple fields
if ($this->recipient["address"] != '' && valid_email($this->recipient["address"])) { // check if valid address
switch ($this->recipient["delivery"]) {
case "cc" : $mail->AddCC($this->recipient["address"], ($this->recipient["name"]) ? $this->recipient["name"] : $this->recipient["address"]); break;
case "bcc" : $mail->AddBCC($this->recipient["address"], ($this->recipient["name"]) ? $this->recipient["name"] : $this->recipient["address"]); break;
default : $mail->AddAddress($this->recipient["address"], ($this->recipient["name"]) ? $this->recipient["name"] : $this->recipient["address"]);
}
$address_found = true;
}
}
else if ($this->recipient != '' && valid_email($this->recipient)) { // check if recipient value is simply (only) an address
$mail->AddAddress($this->recipient);
$address_found = true;
}
}
if (!$address_found) {
$this->error = "No valid e-mail address provided.";
return false;
}
//add email attachments
if (is_array($this->attachments) && sizeof($this->attachments) > 0) {
foreach ($this->attachments as $attachment) {
//add the attachments
if (file_exists($attachment['path'].'/'.$attachment['name'])) {
$mail->AddAttachment($attachment['path'].'/'.$attachment['name'], $attachment['name'], 'base64', $attachment['mime_type']);
}
else {
if ($attachment['base64']) {
if ($attachment['cid']) {
$mail->addStringEmbeddedImage(base64_decode($attachment['base64']), $attachment['cid'], $attachment['name'], 'base64', $attachment['mime_type']);
}
else {
$mail->AddStringAttachment(base64_decode($attachment['base64']), $attachment['name'], 'base64', $attachment['mime_type']);
}
}
}
}
}
//save output to a buffer
ob_start();
//send the email
$mail_status = $mail->Send();
//get the output buffer
$this->response = ob_get_clean();
//send the email
if (!$mail_status) {
if (isset($mail->ErrorInfo) && !empty($mail->ErrorInfo)) {
$this->error = $mail->ErrorInfo;
}
return false;
}
//cleanup the mail object
$mail->ClearAddresses();
$mail->SmtpClose();
unset($mail);
return true;
}
catch (Exception $e) {
$this->error = $mail->ErrorInfo;
return false;
}
}
}
}
/*
$email = new email;
$email->recipients = $recipients;
$email->subject = $email_subject;
$email->body = $email_body;
$email->from_address = $email_from_address;
$email->from_name = $email_from_name;
$email->attachments = $email_attachments;
$response = $mail->error;
$sent = $email->send();
*/