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

I want to resume a truncated download of a BIG file from a remote host.

I'm currently using WWW::Mechanize:

$mech->get($url, ':content_file' => "$file.tmp");

I couldn't find any standard way to do that, other than to add the Range header by myself to the HTTP::Request object, and to append the sequence of temporary files.

Did I miss something? A parameter? An LWP::UserAgent method?

Thanks!!!

Replies are listed 'Best First'.
Re: Resume downloads
by Anonymous Monk on Aug 10, 2009 at 21:30 UTC
[reply]
[d/l]

      AFAIK, that should be used to download the whole file again, if the modification time of the file in the server is newer than the whole file I've previously downloaded.

      What I have is about 40MB of a 45MB binary file from a interrupted connection, and I want to resume in a new one, skipping that range of bytes...

      I´m just looking for a standard way to do this, and not to write code from scratch using lower level methods.

[reply]
        Oh, in that case there is no standard way
[reply]
Re: Resume downloads
by mulander (Monk) on Aug 13, 2009 at 11:03 UTC
    Found and extracted from the google cache
    • Find out how much has already been downloaded
    • Create an HTTP Request (e.g. HTTP::Request from the LWP Bundle)
    • Set an additional header for the offset (Content-Range as specified in RFC 2616). HTTP::Headers from the LWP Bundle can do that.
    • Send the request and append the answer to the file.
[reply]
Re: Resume downloads
by Anonymous Monk on Dec 01, 2011 at 08:32 UTC
[reply]

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