[ic] File upload

Wed Oct 2 09:28:02 2002

Marco Mescoli [m.mescoli@omnibit.nu] wrote:
> 
> Well i have tested the code and very thanks upload OK.
> I add the tag  [value-extended name=uploaded_file file_contents=1] to
> display file content.
> But two problem:
>
> (...snip...)
> 
> ----------------------- uploadfile.html ---------------------------------
> <head>
> <title> Do uploading </title>
> </head>
> <body>
>   [set outfilename]tmp/test_file[/set]
>   [if type=explicit compare="[value-extended name=uploaded_file test=isfile]"]
>   [then]
>     [tmp result]
>       [value-extended
>         yes="Success"
>         no="Failed"
>         ascii=0
>         name=uploaded_file
>         outfile="[scratch outfilename]"
>     ]
>     [/tmp]
>     [if scratch result] <!-- BEWARE NOT CORRECT -->
>       [tmp result]File upload succeeded.[/tmp]
>       File contents:<br>
>       [value-extended name=uploaded_file file_contents=1]
>     [else]
>       [tmp result]File upload failed.[/tmp]
>     [/else]
>     [/if]
>   [/then]
>   [else]
>     [tmp result]No file upload was specified.[/tmp]
>   [/else]
>   [/if]
>   <br><br>
>   [scratch result]
> </body>
> </html>
> -------------------------------------------------------------------
>
> 1) [if scratch result eq 'Success'] do not pass even if [scratch result] is
> really equal "Success".
> I try some other type of "if compare" with the same result.
>
The problem is not the [if], but rather the [tmp result].  The way you
modified the example, the 'Success' message would be surrounded with
newlines, which is not what the [if] is being told to expect.

Change this code:

    [tmp result]
      [value-extended
        yes="Success"
        no="Failed"
        ascii=0
        name=uploaded_file
        outfile="[scratch outfilename]"
    ]
    [/tmp]
    [if scratch result] <!-- BEWARE NOT CORRECT -->

to this:

    [tmp result][value-extended
        yes="Success"
        no="Failed"
        ascii=0
        name=uploaded_file
        outfile="[scratch outfilename]"
    ][/tmp]
    [if scratch result eq 'Success']

>
> 2) If in <input type="file ... > i put a non existent file name [scratch
> result] is equal "Success". May be a problem in [value-extended
> name=uploaded_file test=isfile] ?
>
Perhaps the browser sends a zero-length buffer as the file contents
if a non-existent filename is specified.  If this is the case then
you will need a further check.  Try changing these lines:

    [tmp result]File upload succeeded.[/tmp]
    File contents:<br>
    [value-extended name=uploaded_file file_contents=1]

to something more like this:

    [tmp contents][value-extended
        name=uploaded_file
        file_contents=1
    ][/tmp]
    [if scratch contents]
        [tmp result]File upload succeeded.[/tmp]
        File contents:<br>
        <pre>[scratch contents]</pre>
    [else]
        [tmp result]File upload failed.[/tmp]
        Uploaded file is empty or non-existent.
    [/else]
    [/if]

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