public function createBody()
{
$body = '';
//Create unique IDs and preset boundaries
$this->uniqueid = md5(uniqid(time()));
$this->boundary[1] = 'b1_' . $this->uniqueid;
$this->boundary[2] = 'b2_' . $this->uniqueid;
$this->boundary[3] = 'b3_' . $this->uniqueid;
if ($this->sign_key_file) {
$body .= $this->getMailMIME() . $this->LE;
}
$this->setWordWrap();
$bodyEncoding = $this->Encoding;
$bodyCharSet = $this->CharSet;
//Can we do a 7-bit downgrade?
if ('8bit' == $bodyEncoding and !$this->has8bitChars($this->Body)) {
$bodyEncoding = '7bit';
$bodyCharSet = 'us-ascii';
}
//If lines are too long, and we're not already using an encoding that will shorten them,
//change to quoted-printable transfer encoding
if ('base64' != $this->Encoding and static::hasLineLongerThanMax($this->Body)) {
$this->Encoding = 'quoted-printable';
$bodyEncoding = 'quoted-printable';
}
$altBodyEncoding = $this->Encoding;
$altBodyCharSet = $this->CharSet;
//Can we do a 7-bit downgrade?
if ('8bit' == $altBodyEncoding and !$this->has8bitChars($this->AltBody)) {
$altBodyEncoding = '7bit';
$altBodyCharSet = 'us-ascii';
}
//If lines are too long, and we're not already using an encoding that will shorten them,
//change to quoted-printable transfer encoding
if ('base64' != $altBodyEncoding and static::hasLineLongerThanMax($this->AltBody)) {
$altBodyEncoding = 'quoted-printable';
}
//Use this as a preamble in all multipart message types
$mimepre = "This is a multi-part message in MIME format." . $this->LE . $this->LE;
switch ($this->message_type) {
case 'inline':
$body .= $mimepre;
$body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
$body .= $this->encodeString($this->Body, $bodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->attachAll('inline', $this->boundary[1]);
break;
case 'attach':
$body .= $mimepre;
$body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
$body .= $this->encodeString($this->Body, $bodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->attachAll('attachment', $this->boundary[1]);
break;
case 'inline_attach':
$body .= $mimepre;
$body .= $this->textLine('--' . $this->boundary[1]);
$body .= $this->headerLine('Content-Type', 'multipart/related;');
$body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
$body .= $this->LE;
$body .= $this->getBoundary($this->boundary[2], $bodyCharSet, '', $bodyEncoding);
$body .= $this->encodeString($this->Body, $bodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->attachAll('inline', $this->boundary[2]);
$body .= $this->LE;
$body .= $this->attachAll('attachment', $this->boundary[1]);
break;
case 'alt':
$body .= $mimepre;
$body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, 'text/plain', $altBodyEncoding);
$body .= $this->encodeString($this->AltBody, $altBodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->getBoundary($this->boundary[1], $bodyCharSet, 'text/html', $bodyEncoding);
$body .= $this->encodeString($this->Body, $bodyEncoding);
$body .= $this->LE . $this->LE;
if (!empty($this->Ical)) {
$body .= $this->getBoundary($this->boundary[1], '', 'text/calendar; method=REQUEST', '');
$body .= $this->encodeString($this->Ical, $this->Encoding);
$body .= $this->LE . $this->LE;
}
$body .= $this->endBoundary($this->boundary[1]);
break;
case 'alt_inline':
$body .= $mimepre;
$body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, 'text/plain', $altBodyEncoding);
$body .= $this->encodeString($this->AltBody, $altBodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->textLine('--' . $this->boundary[1]);
$body .= $this->headerLine('Content-Type', 'multipart/related;');
$body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
$body .= $this->LE;
$body .= $this->getBoundary($this->boundary[2], $bodyCharSet, 'text/html', $bodyEncoding);
$body .= $this->encodeString($this->Body, $bodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->attachAll('inline', $this->boundary[2]);
$body .= $this->LE;
$body .= $this->endBoundary($this->boundary[1]);
break;
case 'alt_attach':
$body .= $mimepre;
$body .= $this->textLine('--' . $this->boundary[1]);
$body .= $this->headerLine('Content-Type', 'multipart/alternative;');
$body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
$body .= $this->LE;
$body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, 'text/plain', $altBodyEncoding);
$body .= $this->encodeString($this->AltBody, $altBodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->getBoundary($this->boundary[2], $bodyCharSet, 'text/html', $bodyEncoding);
$body .= $this->encodeString($this->Body, $bodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->endBoundary($this->boundary[2]);
$body .= $this->LE;
$body .= $this->attachAll('attachment', $this->boundary[1]);
break;
case 'alt_inline_attach':
$body .= $mimepre;
$body .= $this->textLine('--' . $this->boundary[1]);
$body .= $this->headerLine('Content-Type', 'multipart/alternative;');
$body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
$body .= $this->LE;
$body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, 'text/plain', $altBodyEncoding);
$body .= $this->encodeString($this->AltBody, $altBodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->textLine('--' . $this->boundary[2]);
$body .= $this->headerLine('Content-Type', 'multipart/related;');
$body .= $this->textLine("\tboundary=\"" . $this->boundary[3] . '"');
$body .= $this->LE;
$body .= $this->getBoundary($this->boundary[3], $bodyCharSet, 'text/html', $bodyEncoding);
$body .= $this->encodeString($this->Body, $bodyEncoding);
$body .= $this->LE . $this->LE;
$body .= $this->attachAll('inline', $this->boundary[3]);
$body .= $this->LE;
$body .= $this->endBoundary($this->boundary[2]);
$body .= $this->LE;
$body .= $this->attachAll('attachment', $this->boundary[1]);
break;
default:
// catch case 'plain' and case ''
$body .= $this->encodeString($this->Body, $bodyEncoding);
break;
}
if ($this->isError()) {
$body = '';
} elseif ($this->sign_key_file) {
try {
if (!defined('PKCS7_TEXT')) {
throw new Exception($this->lang('extension_missing') . 'openssl');
}
// @TODO would be nice to use php://temp streams here
$file = tempnam(sys_get_temp_dir(), 'mail');
if (false === file_put_contents($file, $body)) {
throw new Exception($this->lang('signing') . ' Could not write temp file');
}
$signed = tempnam(sys_get_temp_dir(), 'signed');
//Workaround for PHP bug https://bugs.php.net/bug.php?id=69197
if (empty($this->sign_extracerts_file)) {
$sign = @openssl_pkcs7_sign($file, $signed, 'file://' . realpath($this->sign_cert_file), ['file://' . realpath($this->sign_key_file), $this->sign_key_pass], null);
} else {
$sign = @openssl_pkcs7_sign($file, $signed, 'file://' . realpath($this->sign_cert_file), ['file://' . realpath($this->sign_key_file), $this->sign_key_pass], null, PKCS7_DETACHED, $this->sign_extracerts_file);
}
if ($sign) {
@unlink($file);
$body = file_get_contents($signed);
@unlink($signed);
//The message returned by openssl contains both headers and body, so need to split them up
$parts = explode("\n\n", $body, 2);
$this->MIMEHeader .= $parts[0] . $this->LE . $this->LE;
$body = $parts[1];
} else {
@unlink($file);
@unlink($signed);
throw new Exception($this->lang('signing') . openssl_error_string());
}
} catch (Exception $exc) {
$body = '';
if ($this->exceptions) {
throw $exc;
}
}
}
return $body;
}