I am trying to send HTML emails with attachments from Opencart. There is a built-in function $mail->addAttachment. Everything is in order, except that there is a white box in the Apple Mail at the site of the application. In iOs Mail, the application does not appear at all. On GMail, this is normal:
An attachment is also available in Apple Mail, because if I double-click on the white area, the application will open.
Here is the source of the message open in GMail (I removed the X headers):
X-Mailer: PHP/5.4.39-0+deb7u2
Content-Type: multipart/related; boundary="----=_NextPart_fefb9509ef8523a96a17066ecf8472c8"
------=_NextPart_fefb9509ef8523a96a17066ecf8472c8
Content-Type: multipart/alternative; boundary="----=_NextPart_fefb9509ef8523a96a17066ecf8472c8_alt"
------=_NextPart_fefb9509ef8523a96a17066ecf8472c8_alt
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 8bit
Some text (text/plain)
------=_NextPart_fefb9509ef8523a96a17066ecf8472c8_alt
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: 8bit
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Test title</title>
</head>
<body>
<p>Some html text(text/html)</p>
</body>
</html>
------=_NextPart_fefb9509ef8523a96a17066ecf8472c8_alt--
------=_NextPart_fefb9509ef8523a96a17066ecf8472c8
Content-Type: application/pdf; name="form.pdf"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="form.pdf"
Content-ID <%2Fhome%2Fhtml%2Fdownload%2form.pdf>
X-Attachment-Id: %2Fhome%2Fhtml%2Fdownload%2form.pdf
JVBERi0xLjMKJcTl8uXrp/Og0MTGCjQgMCBvYmoKPDwgL0xlbmd0aCA1IDAgUiAvRmlsdGVyIC9G
bGF0ZURlY29kZSA+PgpzdHJlYW0KeAGdW0tzHLcRvs+vQGInGbqk0bwfuTl2qqKkbMkRk1Q58mFJ
jkJylzvS7pIu8Q/o5oMuLlfpmB+Un5SvHwDmtdylSyXNAgM0uhuN7q8bo3fmO/POxPhTNIWp89Rs
WvMvszbPvtom5nxrEv6zPccIenvjxq34V2xWPHsVXJo3TCtLoiYr49ykdZQVpsjqqKqqxlR1GWWW
+jtQpUUTk5WmKjNzfmP+dGr+fAoStHKAlel9bLCyH1ympspqHRxHcRwn5vTcJDkP1cfpjXl2ekp8
...
------=_NextPart_fefb9509ef8523a96a17066ecf8472c8--
Relevant part from /system/library/mail.php:
foreach ($this->attachments as $attachment) {
if (file_exists($attachment)) {
$handle = fopen($attachment, 'r');
$content = fread($handle, filesize($attachment));
fclose($handle);
$message .= '--' . $boundary . $this->newline;
$message .= 'Content-Type: application/pdf; name="' . basename($attachment) . '"' . $this->newline;
$message .= 'Content-Transfer-Encoding: base64' . $this->newline;
$message .= 'Content-Disposition: attachment; filename="' . basename($attachment) . '"' . $this->newline;
$message .= 'Content-ID: <' . basename(urlencode($attachment)) . '>' . $this->newline;
$message .= 'X-Attachment-Id: ' . basename(urlencode($attachment)) . $this->newline . $this->newline;
$message .= chunk_split(base64_encode($content));
}
}
EDIT:
I just realized that the issue of Content-ID and X-Attachment-Id was a problem:
basename(urlencode($attachment)
it should be:
urlencode(basename($attachment))
Now it works great in Apple Mail, but the app is still missing on iOS (iPhone / iPad). Any idea?