Upload in-memory files with WWW:Mechanize

hotsolutions has asked for the wisdom of the Perl Monks concerning the following question:

I'd like to upload files to a <INPUT TYPE=FILE name="file1"> element using WWW:Mechanize.
My files are in memory - I cannot save them to /tmp and then do something like

$mech->submit_form(form_name => 'something', fields => { file1 => '/tm
+p/myfile' }
[download]

so - is there any way to pass the file as an in-memory object? I can do it with something like this:

    my $input = $m->current_form()->find_input('file1');
    $input->content(  $content_here );
    $input->filename( $filename );
    $input->headers( content_type => $content_type );
[download]

but how would I determine the content type for any type of file?

Comment on Upload in-memory files with WWW:Mechanize Select or Download Code

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Re: Upload in-memory files with WWW:Mechanize by BrowserUk (Patriarch) on Mar 05, 2009 at 04:43 UTC
According to the docs, you need to specify a `content_type` of `'form-data'` to trigger the multipart/form-data wrapping of the content. Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. "Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."	[reply] [d/l] [select]
Re: Upload in-memory files with WWW:Mechanize by kyle (Abbot) on Mar 05, 2009 at 04:15 UTC
You can use File::Type to get the type of a file in memory.	[reply]
Re: Upload in-memory files with WWW:Mechanize by Anonymous Monk on Mar 05, 2009 at 04:39 UTC
See HTML::Form `my $upin = $mech->current_form()->find_input('upload'); $upin->content('the content'); $mech->submit();` [download]	[reply] [d/l]
Re: Upload in-memory files with WWW:Mechanize by ikegami (Patriarch) on Mar 05, 2009 at 04:29 UTC
Does the receiver even care? WWW::Mechanize wouldn't have set it (right?), so you're going beyond your stated goal.	[reply]