[11784] | 1 | ###########################################################################
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| 2 | #
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| 3 | # download.pm -- functions to handle using download modules
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| 4 | # A component of the Greenstone digital library software
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| 5 | # from the New Zealand Digital Library Project at the
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| 6 | # University of Waikato, New Zealand.
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| 7 | #
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| 8 | # Copyright (C) 2005 New Zealand Digital Library Project
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| 9 | #
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| 10 | # This program is free software; you can redistribute it and/or modify
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| 11 | # it under the terms of the GNU General Public License as published by
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| 12 | # the Free Software Foundation; either version 2 of the License, or
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| 13 | # (at your option) any later version.
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| 14 | #
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| 15 | # This program is distributed in the hope that it will be useful,
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| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | # GNU General Public License for more details.
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| 19 | #
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| 20 | # You should have received a copy of the GNU General Public License
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| 21 | # along with this program; if not, write to the Free Software
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| 22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | #
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| 24 | ###########################################################################
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| 25 |
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| 26 | package download;
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| 27 |
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| 28 | use strict; # to pick up typos and undeclared variables...
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| 29 | no strict 'refs'; # ...but allow filehandles to be variables and vice versa
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| 30 | no strict 'subs';
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| 31 |
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[16794] | 32 | ##require util;
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| 33 | use util;
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[11784] | 34 | use gsprintf 'gsprintf';
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| 35 |
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| 36 |
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| 37 | sub load_download {
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| 38 | my ($download_name,$download_options) = @_;
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[12465] | 39 |
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[11784] | 40 | my ($download_obj);
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| 41 |
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[12465] | 42 | my $coldownloadname ="";
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| 43 |
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| 44 | if ($ENV{'GSDLCOLLECTDIR'}){
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| 45 |
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[16794] | 46 | $coldownloadname = &util::filename_cat($ENV{'GSDLCOLLECTDIR'},
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| 47 | "perllib","downloaders",
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[11784] | 48 | "${download_name}.pm");
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[12465] | 49 |
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[16794] | 50 | }
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[12465] | 51 |
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[11784] | 52 | my $maindownloadname = &util::filename_cat($ENV{'GSDLHOME'},
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[16794] | 53 | "perllib","downloaders",
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[11784] | 54 | "${download_name}.pm");
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[12465] | 55 |
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[11784] | 56 | if (-e $coldownloadname) { require $coldownloadname;}
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| 57 | elsif (-e $maindownloadname ) { require $maindownloadname; }
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| 58 | else {
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| 59 | &gsprintf(STDERR, "{download.could_not_find_download}\n",
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| 60 | $download_name);
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| 61 | die "\n";
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| 62 | }
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| 63 |
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| 64 | eval ("\$download_obj = new \$download_name([],\$download_options)");
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| 65 | die "$@" if $@;
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| 66 |
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| 67 | return $download_obj;
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| 68 | }
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| 69 |
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| 70 | sub process {
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| 71 | my ($download_obj,$options) = @_;
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| 72 | # options: This is a hash map which maps to
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| 73 | # downloadfrom's arguments
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| 74 | # $options->{'cache_dir'}
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| 75 | # $options->{'download_mode'}
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| 76 | # $options->{'gli_call'}
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| 77 | # $options->{'info'}
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| 78 | ($download_obj->download($options) == 1)?
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| 79 | return "true":
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| 80 | return "false";
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| 81 | }
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| 82 |
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| 83 | sub get_information {
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| 84 | my ($download_obj) = @_;
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| 85 |
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| 86 | $download_obj->url_information();
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| 87 | }
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| 88 |
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| 89 | 1;
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