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Re^7: in memory files in 5.6.1

by afoken (Canon)
on Apr 11, 2016 at 05:00 UTC ( #1160082=note: print w/replies, xml ) Need Help??

in reply to Re^6: in memory files in 5.6.1
in thread in memory files in 5.6.1

command: ..put( -local => "$fh", -url => "$url/$base_dir/$work_dir" + ) Reply..: put foo_Line_01 foo_Line_02 failed command: ..put( -local => \$fh, -url => "$url/$base_dir/$work_dir" + ) Reply..: put REF(0x274dc28) failed command: ..put( -local => $fhref, -url => "$url/$base_dir/$work_dir" + ) Reply..: put REF(0x274dc28) failed command: ..put( -local => "\$fh", -url => "$url/$base_dir/$work_dir" + ) Reply..: put $fh failed command: ..put( -local => "\$fhref",-url => "$url/$base_dir/$work_dir" + ) Reply..: put $fhref failed
Any idea how to handle the -local parameter of the HTTP::DAV put request for an InMemoryfile linehandler?

Yes, sure. As I wrote:

HTTP::DAV documents for the put method:

One can upload/put a string by passing a reference to a scalar in the -local parameter.

Of course, to access the scalar behind IO::Scalar, you need to pass a reference to a scalar to the constructor IO::Scalar->new(), see IO::Scalar. BTW: You would pass the same reference to HTTP::DAV's put() method.

# (untested) my $storage=''; my $handle=IO::Scalar->new(\$storage); # use $handle to write to $storage here my $dav=HTTP::DAV->new(); # set up $dav here $dav->put( -local => \$storage, -url => '', ) or die "Put failed: ",join("\n",$dav->message(),$dav->errors());

Stringifying references ("$fh", "\$fh", "\$fhref") can't work, put() needs a reference to a scalar to transfer the scalar's content. But stringifying creates a string like "SCALAR(0x1c34ac0)" that put() will treat as a file name.

Also taking a reference to a reference won't work, you would at best transfer the stringified inner reference. Passing a reference to a handle won't work, as put expects a reference to a scalar (or a plain scalar containing a file name).


Your -url parameter for put() seems to be a directory. From a quick look at the sources of HTTP::DAV and HTTP::DAV::Resource,the -url parameter must be a filename if -local is a scalar reference. Else, HTTP::DAV will try to upload something that looks like a file to the DAV server to a resource that is a directory, not a file. Most likely, no sane DAV server will accept that. If you use put() with a local filename and a URL that points to a directory, HTTP::DAV will append the local filename (without directories) to the URL behind the scenes. This does not happen when -local is a reference to a scalar. A scalar reference simply does not have a filename that could be extracted and appended to the URL.


Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

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Re^8: in memory files in 5.6.1
by WolliK (Acolyte) on Apr 14, 2016 at 18:37 UTC

    Hi afoken, io Alexander,
    YES it works! I have to use a target file name and not only a target directory. Thanks to all of you


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