[Javier Cintrón]

Hi,

Is possible encrypt using SHA1 a upload file. Help me with this problem, I need create a form with upload file, but upload file must be encrypted in SHA1.

Thanks.

[victor]

HI, Javier Cintrón!
I think that you should change this code:
grocery_crud.php str. 4529

private function trim_file_name($name, $type) {

// Remove path information and dots around the filename, to prevent uploading

// into different directories or replacing hidden system files.

// Also remove control characters and spaces (\x00..\x20) around the filename:

$file_name = trim(basename(stripslashes($name)), ".\x00..\x20");

// Add missing file extension for known image types:

if (strpos($file_name, '.') === false &&

preg_match('/^image\/(gif|jpe?g|png)/', $type, $matches)) {

$file_name .= '.'.$matches[1];

}



//Ensure that we don't have disallowed characters and add a unique id just to ensure that the file name will be unique

$file_name = substr(uniqid(),-5).'-'.preg_replace("/([^a-zA-Z0-9\.\-\_]+?){1}/i", '-', $file_name);



return $file_name;

} 

$file_name = substr(uniqid(),-5).'-'.preg_replace("/([^a-zA-Z0-9\.\-\_]+?){1}/i", '-', $file_name);

[victor]

for example :

$file_name = sha1(date()).'.'.substr(strrchr($file_name,'.'), 1);

[Javier Cintrón]

Hi Victor,

Thanks for your answer, try what you sent me does not work, that is not what I'm doing wrong. Please help me.

Thanks.

[Javier Cintrón]

[quote name='victor' timestamp='1351536716' post='4028']
for example :

$file_name = sha1(date()).'.'.substr(strrchr($file_name,'.'), 1);

[/quote]

[color=#282828][font=helvetica, arial, sans-serif]Hi Victor,[/font][/color]

[color=#282828][font=helvetica, arial, sans-serif]Thanks for your answer, try what you sent me does not work, that is not what I'm doing wrong. Please help me.[/font][/color]

[color=#282828][font=helvetica, arial, sans-serif]Thanks.[/font][/color]

[victor]

    private function trim_file_name($name, $type) {

	    // Remove path information and dots around the filename, to prevent uploading

	    // into different directories or replacing hidden system files.

	    // Also remove control characters and spaces (\x00..\x20) around the filename:

	    $file_name = trim(basename(stripslashes($name)), ".\x00..\x20");

	    // Add missing file extension for known image types:

	    if (strpos($file_name, '.') === false &&

		    preg_match('/^image\/(gif|jpe?g|png)/', $type, $matches)) {

		    $file_name .= '.'.$matches[1];

	    }

	    //Ensure that we don't have disallowed characters and add a unique id just to ensure that the file name will be unique

	  //  $file_name = '123456'.substr(uniqid(),-5).'-'.preg_replace("/([^a-zA-Z0-9\.\-\_]+?){1}/i", '-', $file_name);

$file_name = sha1(date()).'.'.substr(strrchr($file_name,'.'), 1);

	    return $file_name;

    }

result : da39a3ee5e6b4b0d3255bfef95601890afd80709.jpg

[victor]

or you need another result?

[victor]

The function trim_file_name() returning file's name. You can change the function as you like. bu

[Javier Cintrón]

When add command line, display the following error "An error has occuerred on uploading".

[victor]

deleted

[Javier Cintrón]

I send the file now. Thanks.

[victor]

update your library. On my localhost it works perfectly

[Javier Cintrón]

Hi Victor,

I try in Ubuntu, and working perfect. Thanks. A last question, when he says he needs to encrypt a file, this is the right way.

Thanks.

[victor]

A last question, when he says he needs to encrypt a file, this is the right way.

sorry, i don't understand this question.

[Javier Cintrón]

This is the correct way to encrypt a file.

[victor]

This is the correct way to encrypt a [b]file's name.[/b]

it's better:

$file_name = sha1(microtime().$_SERVER['REMOTE_ADDR']).'.'.substr(strrchr($file_name,'.'), 1);

if you want to encrypt the contents of the file you need to do different way.
sorry, I'm bad in English.

[Javier Cintrón]

I need both. If posible or your have rutine. Thanks.

[victor]

for what it is necessary? do you need an Encrypting / Decrypting file?

[victor]

or only encrypting?

[Javier Cintrón]

The files that users upload is confidential information.