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PHP Server Side Scripting Forum

    
Trouble with form file attachments on PHP script
I need this script to allow only .rtf attachments. I have tried everything.
charly




msg:1303585
 7:49 pm on Mar 20, 2003 (gmt 0)

I am trying to make it so users can upload files using a html form that calls the following script as it's post action - though I only want to accept .rtf files. Any help you could provide to doctor this script would be greatly appreciated. If you want to suggest an alternative script/method, I am open to that too.

// Read POST request params into global vars
$to = $_POST['to'];
$from = $_POST['from'];
$subject = $_POST['subject'];
$message = $_POST['message'];

// Obtain file upload vars
if($_FILES['fileatt']['type'] == "application/rtf") {
// file is rtf
} else {
// file is not rtf
}

$fileatt = $_FILES['fileatt']['tmp_name'];
$fileatt_name = $_FILES['fileatt']['name'];

$headers = "From: $from";
//If file exists...
if(file_exists($fileatt)) {
// Read the file to be attached ('rb' = read binary)
$file = fopen($fileatt,'rb');
if (is_uploaded_file($fileatt)) {
$data = fread($file,filesize($fileatt));
fclose($file);

// Generate a boundary string
$semi_rand = md5(time());
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";

// Add the headers for a file attachment
$headers .= "\nMIME-Version: 1.0\n" .
"Content-Type: multipart/mixed;\n" .
" boundary=\"{$mime_boundary}\"";

// Add a multipart boundary above the plain message
$message = "This is a multi-part message in MIME format.\n\n" .
"--{$mime_boundary}\n" .
"Content-Type: text/plain; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$message . "\n\n";

// Base64 encode the file data
$data = chunk_split(base64_encode($data));

// Add file attachment to the message
$message .= "--{$mime_boundary}\n" .
"Content-Type: {$fileatt_type};\n" .
" name=\"{$fileatt_name}\"\n" .
//"Content-Disposition: attachment;\n" .
//" filename=\"{$fileatt_name}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n" .
"--{$mime_boundary}--\n";
}}

 

jatar_k




msg:1303586
 5:35 pm on Mar 21, 2003 (gmt 0)

Hi charly and Welcome to WebmasterWorld,

what type of doctoring are you looking for? Is the script working, not working, too slow?

not totally sure what the question is.

<added>ok I'm an idiot and just read the description line in the thread title.

if you put echo lines in that if statement does it always fail, does it always succeed, what happens.

jatar_k




msg:1303587
 5:44 pm on Mar 21, 2003 (gmt 0)

have you tried maybe text/rtf as well?
I am reading throught this to see what I can see
[php.net...]

jatar_k




msg:1303588
 6:23 pm on Mar 21, 2003 (gmt 0)

$allowedFile = false;
$allowedFileTypes = array("text/rtf", "application/rtf");
foreach($allowedFileTypes as $this) {
if ($_FILES['fileatt']['type'] == $this) {
$allowedFile = true;
break;
}
}
if (!$allowedFile) {
// show error or send them to error page
echo "file must be rtf";
// unlink the temp file
unlink [php.net]($_FILES['fileatt']['tmp_name']);
}

seems like that should work but it would depend on whether those are the proper mime types.

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