[11783] | 1 | ###########################################################################
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| 2 | #
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| 3 | # WebDownload.pm -- base class for all the import plugins
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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) 1999 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 OAIDownload;
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| 27 |
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| 28 | eval {require bytes};
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| 29 |
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| 30 | # suppress the annoying "subroutine redefined" warning that various
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| 31 | # plugins cause under perl 5.6
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| 32 | $SIG{__WARN__} = sub {warn($_[0]) unless ($_[0] =~ /Subroutine\s+\S+\sredefined/)};
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| 33 |
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| 34 | use strict;
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| 35 |
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| 36 | use WgetDownload;
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| 37 | use XMLParser;
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| 38 |
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| 39 | use POSIX qw(tmpnam);
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[12465] | 40 | use util;
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[11783] | 41 |
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| 42 | sub BEGIN {
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| 43 | @OAIDownload::ISA = ('WgetDownload');
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| 44 | }
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| 45 |
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| 46 | my $arguments =
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| 47 | [ { 'name' => "url",
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| 48 | 'disp' => "{OAIDownload.url_disp}",
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| 49 | 'desc' => "{OAIDownload.url}",
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| 50 | 'type' => "string",
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| 51 | 'reqd' => "yes"},
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[14941] | 52 | { 'name' => "metadata_prefix",
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| 53 | 'disp' => "{OAIDownload.metadata_prefix_disp}",
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| 54 | 'desc' => "{OAIDownload.metadata_prefix}",
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| 55 | 'type' => "string",
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| 56 | 'deft' => "oai_dc",
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| 57 | 'reqd' => "no"},
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[11783] | 58 | { 'name' => "set",
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| 59 | 'disp' => "{OAIDownload.set_disp}",
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| 60 | 'desc' => "{OAIDownload.set}",
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| 61 | 'type' => "string",
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| 62 | 'reqd' => "no"},
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| 63 | { 'name' => "get_doc",
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[12465] | 64 | 'disp' => "{OAIDownload.get_doc_disp}",
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[11783] | 65 | 'desc' => "{OAIDownload.get_doc}",
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| 66 | 'type' => "flag",
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| 67 | 'reqd' => "no"},
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[16791] | 68 | { 'name' => "get_doc_exts",
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| 69 | 'disp' => "{OAIDownload.get_doc_exts_disp}",
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| 70 | 'desc' => "{OAIDownload.get_doc_exts}",
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| 71 | 'type' => "string",
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| 72 | 'deft' => "doc,pdf,ppt",
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| 73 | 'reqd' => "no"},
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[11783] | 74 | { 'name' => "max_records",
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| 75 | 'disp' => "{OAIDownload.max_records_disp}",
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| 76 | 'desc' => "{OAIDownload.max_records}",
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| 77 | 'type' => "int",
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| 78 | 'deft' => "500",
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| 79 | 'range' => "1,",
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| 80 | 'reqd' => "no"} ];
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| 81 |
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| 82 | my $options = { 'name' => "OAIDownload",
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| 83 | 'desc' => "{OAIDownload.desc}",
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| 84 | 'abstract' => "no",
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| 85 | 'inherits' => "yes",
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| 86 | 'args' => $arguments };
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| 87 |
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[16791] | 88 | ##my $self;
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[11783] | 89 |
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[16791] | 90 | #### my $strWgetOptions="";
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[12465] | 91 |
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[11783] | 92 | sub new
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| 93 | {
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| 94 | my ($class) = shift (@_);
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| 95 | my ($getlist,$inputargs,$hashArgOptLists) = @_;
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| 96 | push(@$getlist, $class);
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| 97 |
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[17207] | 98 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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| 99 | push(@{$hashArgOptLists->{"OptList"}},$options);
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[11783] | 100 |
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[17207] | 101 | my $self = new WgetDownload($getlist,$inputargs,$hashArgOptLists);
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[11783] | 102 |
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| 103 | if ($self->{'info_only'}) {
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| 104 | # don't worry about any options etc
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| 105 | return bless $self, $class;
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| 106 | }
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| 107 |
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| 108 | my $parser = new XML::Parser('Style' => 'Stream',
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[16791] | 109 | 'PluginObj' => $self,
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[11783] | 110 | 'Handlers' => {'Char' => \&Char,
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| 111 | 'Start' => \&OAI_StartTag,
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| 112 | 'End' => \&OAI_EndTag
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| 113 | });
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| 114 | $self->{'parser'} = $parser;
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| 115 |
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[13961] | 116 | # make sure the tmp directory that we will use later exists
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| 117 | my $tmp_dir = "$ENV{GSDLHOME}/tmp";
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| 118 | if (! -e $tmp_dir) {
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| 119 | &util::mk_dir($tmp_dir);
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| 120 | }
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| 121 |
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[16791] | 122 |
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| 123 | # set up hashmap for individual items in get_doc_exts
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| 124 | # to make testing for matches easier
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| 125 |
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| 126 | $self->{'lookup_exts'} = {};
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| 127 | my $get_doc_exts = $self->{'get_doc_exts'};
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| 128 |
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| 129 | if ((defined $get_doc_exts) && ($get_doc_exts ne "")) {
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| 130 | my @exts = split(/,\s*/,$get_doc_exts);
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| 131 | foreach my $e (@exts) {
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| 132 | $self->{'lookup_exts'}->{lc($e)} = 1;
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| 133 | }
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| 134 | }
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| 135 |
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| 136 |
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[11783] | 137 | return bless $self, $class;
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| 138 | }
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| 139 |
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| 140 | sub download
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| 141 | {
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| 142 | my ($self) = shift (@_);
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| 143 | my ($hashGeneralOptions) = @_;
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| 144 |
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[16791] | 145 | ## my $cmdWget = $strWgetOptions;
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[12465] | 146 |
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| 147 | my $strOutputDir ="";
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| 148 | $strOutputDir = $hashGeneralOptions->{"cache_dir"};
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[11783] | 149 | my $strBasURL = $self->{'url'};
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| 150 | my $intMaxRecords = $self->{'max_records'};
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| 151 | my $blnDownloadDoc = $self->{'get_doc'};
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| 152 |
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| 153 | print STDERR "<<Defined Maximum>>\n";
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[12465] | 154 |
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| 155 | my $strIDs = $self->getOAIIDs($strBasURL);
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| 156 |
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[16791] | 157 | if($strIDs eq "")
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[11783] | 158 | {
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[16791] | 159 | print STDERR "Error: No IDs found\n";
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[11783] | 160 | return 0;
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| 161 | }
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[16791] | 162 |
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[12465] | 163 | my $aryIDs = $self->parseOAIIDs($strIDs);
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[11783] | 164 | my $intIDs = 0;
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| 165 | if($self->{'max_records'} < scalar(@$aryIDs))
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| 166 | {
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| 167 | $intIDs = $self->{'max_records'};
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| 168 | }
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| 169 | else
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| 170 | {
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| 171 | $intIDs = scalar(@$aryIDs);
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| 172 | }
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| 173 | print STDERR "<<Total number of record(s):$intIDs>>\n";
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| 174 |
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[12465] | 175 | $self->getOAIRecords($aryIDs, $strOutputDir, $strBasURL, $intMaxRecords, $blnDownloadDoc);
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[11783] | 176 |
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[16791] | 177 | # my $tmp_file = &util::filename_cat($ENV{'GSDLHOME'},"tmp","oai.tmp");
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| 178 | # &util::rm($tmp_file);
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[12465] | 179 |
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[11783] | 180 | return 1;
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| 181 | }
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| 182 |
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| 183 | sub getOAIIDs
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| 184 | {
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| 185 | my ($self,$strBasURL) = @_;
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[16791] | 186 | ## my ($cmdWget);
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[12465] | 187 |
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| 188 | my $wgetOptions = $self->getWgetOptions();
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| 189 |
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[16791] | 190 | my $cmdWget = $wgetOptions;
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[12465] | 191 |
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[11783] | 192 | print STDERR "Gathering OAI identifiers.....\n";
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[12465] | 193 |
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[14941] | 194 | my $metadata_prefix = $self->{'metadata_prefix'};
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| 195 | $cmdWget .= " -q -O - \"$strBasURL?verb=ListIdentifiers&metadataPrefix=$metadata_prefix";
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[12465] | 196 |
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[14941] | 197 | # if $set specified, add it in to URL
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| 198 | my $set = $self->{'set'};
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| 199 | $cmdWget .= "&set=$set" if ($set ne "");
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| 200 |
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| 201 | $cmdWget .= "\" ";
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| 202 |
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[14948] | 203 | my $accumulated_strIDs = "";
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[12465] | 204 | my $strIDs = $self->useWget($cmdWget);
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| 205 |
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| 206 | if (!defined $strIDs or $strIDs eq "" ){
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| 207 | print STDERR "Server information is unavailable.\n";
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| 208 | print STDERR "<<Finished>>\n";
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| 209 | return;
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| 210 | }
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[17549] | 211 | if ($self->{'forced_quit'}) {
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| 212 | return $strIDs;
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| 213 | }
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[12465] | 214 |
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| 215 | print STDERR "<<Download Information>>\n";
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[14948] | 216 |
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[12465] | 217 | $self->parse_xml($strIDs);
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| 218 |
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[14948] | 219 | $accumulated_strIDs = $strIDs;
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| 220 |
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[16704] | 221 | while ($strIDs =~ m/<resumptionToken.*?>\s*(.*?)\s*<\/resumptionToken>/) {
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[14948] | 222 | # top up list with further requests for IDs
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| 223 |
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| 224 | my $resumption_token = $1;
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| 225 |
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| 226 | $cmdWget = $wgetOptions;
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| 227 |
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[16725] | 228 | $cmdWget .= " -q -O - \"$strBasURL?verb=ListIdentifiers&resumptionToken=$resumption_token\"";
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[14948] | 229 |
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| 230 | $strIDs = $self->useWget($cmdWget);
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[17549] | 231 | if ($self->{'forced_quit'}) {
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| 232 | return $accumulated_strIDs;
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| 233 | }
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[14948] | 234 |
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| 235 | $self->parse_xml($strIDs);
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| 236 |
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| 237 | $accumulated_strIDs .= $strIDs;
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| 238 |
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| 239 | my @accumulated_identifiers
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| 240 | = ($accumulated_strIDs =~ m/<identifier>(.*?)<\/identifier>/sg);
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| 241 |
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| 242 | my $num_acc_identifiers = scalar(@accumulated_identifiers);
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| 243 | if ($num_acc_identifiers > $self->{'max_records'}) {
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| 244 | last;
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| 245 | }
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| 246 | }
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| 247 |
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| 248 | return $accumulated_strIDs;
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[11783] | 249 | }
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| 250 |
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| 251 | sub parseOAIIDs
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| 252 | {
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[12465] | 253 | my ($self,$strIDs) = @_;
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[11783] | 254 |
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| 255 | print STDERR "Parsing OAI identifiers.....\n";
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| 256 | $strIDs =~ s/^.*?<identifier>/<identifier>/s;
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| 257 | $strIDs =~ s/^(.*<\/identifier>).*$/$1/s;
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| 258 |
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| 259 | my @aryIDs = ();
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| 260 |
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| 261 | while ($strIDs =~ m/<identifier>(.*?)<\/identifier>(.*)$/s)
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| 262 | {
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| 263 | $strIDs = $2;
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| 264 | push(@aryIDs,$1);
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| 265 | }
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| 266 |
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| 267 | return \@aryIDs;
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| 268 | }
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| 269 |
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| 270 | sub dirFileSplit
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| 271 | {
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[12465] | 272 | my ($self,$strFile) = @_;
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[11783] | 273 |
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[12465] | 274 | my @aryDirs = split("[/\]",$strFile);
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| 275 |
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[11783] | 276 | my $strLocalFile = pop(@aryDirs);
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| 277 | my $strSubDirs = join("/",@aryDirs);
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| 278 |
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| 279 | return ($strSubDirs,$strLocalFile);
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| 280 | }
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| 281 |
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| 282 | sub getOAIDoc
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| 283 | {
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[16791] | 284 | my ($self,$strRecord, $oai_rec_filename) = @_;
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[12465] | 285 |
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[11783] | 286 | print STDERR "Gathering source documents.....\n";
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| 287 | # look out for identifier tag in metadata section
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[12465] | 288 |
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[11783] | 289 | if ($strRecord =~ m/<metadata>(.*)<\/metadata>/s)
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| 290 | {
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| 291 | my $strMetaTag = $1;
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[16791] | 292 | my $had_valid_url = 0;
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[17668] | 293 | my $count = 1;
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[16791] | 294 | while ($strMetaTag =~ s/<(dc:)?identifier>(.*?)<\/(dc:)?identifier>//is)
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[11783] | 295 | {
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[16791] | 296 | my $doc_id_url = $2;
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[11783] | 297 |
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[16791] | 298 | next if ($doc_id_url !~ m/^(https?|ftp):\/\//);
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[11783] | 299 |
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[16791] | 300 | my $orig_doc_id_url = $doc_id_url;
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| 301 | $had_valid_url = 1;
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[12465] | 302 |
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[16791] | 303 | my ($doc_dir_url_prefix,$doc_id_tail) = ($doc_id_url =~ m/^(.*)\/(.*?)$/);
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| 304 | my $faked_ext = 0;
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| 305 | my $primary_doc_match = 0;
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[12465] | 306 |
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[16791] | 307 | my ($id_file_ext) = ($doc_id_tail =~ m/\.([^\.]+)$/);
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[11783] | 308 |
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[16791] | 309 | if (defined $id_file_ext) {
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| 310 | # cross-check this filename extension with get_doc_exts option
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| 311 | # if provided
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| 312 | my $lookup_exts = $self->{'lookup_exts'};
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[11783] | 313 |
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[16791] | 314 | if (defined $lookup_exts->{lc($id_file_ext)}) {
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| 315 | # this initial URL matches requirement
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| 316 | $primary_doc_match = 1;
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| 317 | }
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| 318 | }
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| 319 | else {
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| 320 | $faked_ext = 1;
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| 321 | $id_file_ext = "html";
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| 322 | }
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| 323 |
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| 324 |
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| 325 | if ((!$primary_doc_match) && ($id_file_ext =~ m/^html?$/i)) {
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| 326 | # Download this doc if HTML, scan through it looking for a link
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| 327 | # that does match get_doc_exts
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| 328 |
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| 329 |
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| 330 | # 1. Generate a tmp name
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| 331 | my $tmp_filename = &util::get_tmp_filename();
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| 332 |
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| 333 | # 2. Download it
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| 334 | my $wget_opts2 = $self->getWgetOptions();
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| 335 | my $wget_cmd2 = "$wget_opts2 --convert-links -O \"$tmp_filename\" \"$doc_id_url\"";
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| 336 |
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| 337 | my ($stdout_and_err2,$error2,$follow2) = $self->useWgetMonitored($wget_cmd2);
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[17549] | 338 | return $strRecord if $self->{'forced_quit'};
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[16791] | 339 |
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| 340 | if($error2 ne "")
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| 341 | {
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| 342 | print STDERR "Error occured while retrieving OAI source documents: $error2\n";
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| 343 | exit(-1);
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| 344 | }
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| 345 |
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| 346 | if (defined $follow2) {
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| 347 | # src url was "redirected" to another place
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| 348 | # => pick up on this and make it the new doc_id_url
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| 349 | $doc_id_url = $follow2;
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| 350 | }
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| 351 |
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| 352 | my $primary_doc_html = "";
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| 353 | if (open(HIN,"<$tmp_filename")) {
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| 354 | my $line;
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| 355 | while (defined ($line = <HIN>)) {
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| 356 | $primary_doc_html .= $line;
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| 357 | }
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| 358 | close(HIN);
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| 359 |
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| 360 | # 3. Scan through it looking for match
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| 361 | #
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| 362 | # if got match, change $doc_id_url to this new URL and
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| 363 | # $id_file_ext to 'match'
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| 364 |
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| 365 | my @href_links = ($primary_doc_html =~ m/href="(.*?)"/gsi);
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| 366 |
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| 367 | my $lookup_exts = $self->{'lookup_exts'};
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| 368 |
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| 369 | foreach my $href (@href_links) {
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| 370 | my ($ext) = ($href =~ m/\.([^\.]+)$/);
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| 371 |
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| 372 | if ((defined $ext) && (defined $lookup_exts->{$ext})) {
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| 373 |
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| 374 | if ($href !~ m/^(https?|ftp):\/\//) {
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| 375 | # link is within current site
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| 376 | my ($site_domain) = ($doc_id_url =~ m/^((?:https?|ftp):\/\/.*?)\//);
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| 377 |
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| 378 | $href = "$site_domain$href";
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| 379 | }
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| 380 |
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| 381 | $doc_id_url = $href;
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| 382 | $id_file_ext = $ext;
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| 383 | last;
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| 384 | }
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| 385 | }
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| 386 | }
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| 387 | else {
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| 388 | print STDERR "Error occurred while retrieving OAI source documents:\n";
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| 389 | print STDERR "$!\n";
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| 390 | }
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| 391 |
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| 392 | if (-e $tmp_filename) {
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| 393 | &util::rm($tmp_filename);
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| 394 | }
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| 395 | }
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| 396 |
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| 397 | my $download_doc_filename = $oai_rec_filename;
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[17668] | 398 | my $new_extension = "\-$count\.$id_file_ext";
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| 399 | $count++;
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| 400 | #$download_doc_filename =~ s/\.oai$/\.$id_file_ext/;
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| 401 | $download_doc_filename =~ s/\.oai$/$new_extension/;
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[16791] | 402 | my ($unused,$download_doc_file) = $self->dirFileSplit($download_doc_filename);
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| 403 |
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| 404 | my $wget_opts = $self->getWgetOptions();
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| 405 | my $wget_cmd = "$wget_opts --convert-links -O \"$download_doc_filename\" \"$doc_id_url\"";
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| 406 |
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| 407 | my ($stdout_and_err,$errors,$follow) = $self->useWgetMonitored($wget_cmd);
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[17549] | 408 | return $strRecord if $self->{'forced_quit'};
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[16791] | 409 |
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| 410 | if($errors ne "")
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[11783] | 411 | {
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[16791] | 412 | print STDERR "Error occured while retriving OAI souce documents:\n";
|
---|
| 413 | print STDERR "$errors\n";
|
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[11783] | 414 | exit(-1);
|
---|
| 415 | }
|
---|
| 416 |
|
---|
[16791] | 417 |
|
---|
| 418 | $strRecord =~ s/<metadata>(.*?)<(dc:)?identifier>$orig_doc_id_url<\/(dc:)?identifier>(.*?)<\/metadata>/<metadata>$1<${2}identifier>$orig_doc_id_url<\/${2}identifier>\n <gi.Sourcedoc>$download_doc_file<\/gi.Sourcedoc>$4<\/metadata>/s;
|
---|
[11783] | 419 | }
|
---|
[16791] | 420 |
|
---|
| 421 | if (!$had_valid_url)
|
---|
[11783] | 422 | {
|
---|
[17549] | 423 | print STDERR "\tNo source document URL is specified in the OAI record (No (dc:)?identifier is provided)\n";
|
---|
[11783] | 424 | }
|
---|
| 425 | }
|
---|
| 426 | else
|
---|
| 427 | {
|
---|
[17549] | 428 | print STDERR "\tNo source document URL is specified in the OAI record (No metadata field is provided)\n";
|
---|
[11783] | 429 | }
|
---|
[16791] | 430 |
|
---|
| 431 | return $strRecord;
|
---|
[11783] | 432 | }
|
---|
| 433 |
|
---|
| 434 | sub getOAIRecords
|
---|
| 435 | {
|
---|
[12465] | 436 | my ($self,$aryIDs, $strOutputDir, $strBasURL, $intMaxRecords, $blnDownloadDoc) = @_;
|
---|
[11783] | 437 |
|
---|
| 438 | my $intDocCounter = 0;
|
---|
| 439 |
|
---|
[14941] | 440 | my $metadata_prefix = $self->{'metadata_prefix'};
|
---|
| 441 |
|
---|
[11783] | 442 | foreach my $strID ( @$aryIDs)
|
---|
| 443 | {
|
---|
[16791] | 444 | print STDERR "Gathering OAI record with ID $strID.....\n";
|
---|
[12465] | 445 |
|
---|
[16791] | 446 | my $wget_opts = $self->getWgetOptions();
|
---|
| 447 | my $cmdWget= "$wget_opts -q -O - \"$strBasURL?verb=GetRecord&metadataPrefix=$metadata_prefix&identifier=$strID\"";
|
---|
[11783] | 448 |
|
---|
[12465] | 449 | my $strRecord = $self->useWget($cmdWget);
|
---|
| 450 |
|
---|
[16791] | 451 | my @fileDirs = split(":",$strID);
|
---|
| 452 | my $local_id = pop @fileDirs;
|
---|
[12465] | 453 |
|
---|
[11783] | 454 | # setup directories
|
---|
| 455 |
|
---|
[12580] | 456 | $strOutputDir =~ s/"//g; #"
|
---|
[13065] | 457 |
|
---|
| 458 | my $host =$self->{'url'};
|
---|
[12465] | 459 |
|
---|
[16791] | 460 | $host =~ s/https?:\/\///g;
|
---|
[13065] | 461 |
|
---|
| 462 | $host =~ s/:.*//g;
|
---|
| 463 |
|
---|
[16791] | 464 | my $strFileURL = "$strOutputDir/$host/$local_id.oai";
|
---|
[14179] | 465 |
|
---|
[16791] | 466 |
|
---|
[11783] | 467 | # prepare subdirectory for record (if needed)
|
---|
[12465] | 468 | my ($strSubDirPath,$unused) = ("", "");
|
---|
| 469 |
|
---|
| 470 | ($strSubDirPath,$unused) = $self->dirFileSplit($strFileURL);
|
---|
| 471 |
|
---|
[11783] | 472 | &util::mk_all_dir($strSubDirPath);
|
---|
| 473 |
|
---|
| 474 | my $ds = &util::get_dirsep();
|
---|
[12465] | 475 |
|
---|
[11783] | 476 | if($blnDownloadDoc)
|
---|
| 477 | {
|
---|
[16791] | 478 | $strRecord = $self->getOAIDoc($strRecord,$strFileURL);
|
---|
[11783] | 479 | }
|
---|
| 480 |
|
---|
| 481 | # save record
|
---|
[12465] | 482 | open (OAIOUT,">$strFileURL")
|
---|
[11783] | 483 | || die "Unable to save oai metadata record: $!\n";
|
---|
| 484 | print OAIOUT $strRecord;
|
---|
| 485 | close(OAIOUT);
|
---|
| 486 |
|
---|
[12465] | 487 | print STDERR "Saving records to $strFileURL\n";
|
---|
| 488 | print STDERR "<<Done>>\n";
|
---|
| 489 | $intDocCounter ++;
|
---|
[11783] | 490 | last if ($intDocCounter >= $intMaxRecords);
|
---|
| 491 | }
|
---|
[12465] | 492 |
|
---|
[11783] | 493 | ($intDocCounter >= $intMaxRecords) ?
|
---|
[14926] | 494 | print STDERR "Reached maximum download records, use -max_records to set the maximum.\n":
|
---|
[11783] | 495 | print STDERR "Complete download meta record from $strBasURL\n";
|
---|
| 496 |
|
---|
[12465] | 497 | print STDERR "<<Finished>>\n";
|
---|
[11783] | 498 | }
|
---|
| 499 |
|
---|
| 500 | sub url_information
|
---|
| 501 | {
|
---|
| 502 | my ($self) = shift (@_);
|
---|
| 503 | if(!defined $self){ die "System Error: No \$self defined for url_information in OAIDownload\n";}
|
---|
| 504 |
|
---|
[12465] | 505 | my $wgetOptions = $self->getWgetOptions();
|
---|
| 506 | my $strBaseCMD = $wgetOptions." -q -O - \"$self->{'url'}?_OPTS_\"";
|
---|
[11783] | 507 |
|
---|
| 508 | my $strIdentify = "verb=Identify";
|
---|
| 509 | my $strListSets = "verb=ListSets";
|
---|
[16791] | 510 | my $strListMdFormats = "verb=ListMetadataFormats";
|
---|
[11783] | 511 |
|
---|
| 512 | my $strIdentifyCMD = $strBaseCMD;
|
---|
| 513 | $strIdentifyCMD =~ s/_OPTS_/$strIdentify/;
|
---|
| 514 |
|
---|
[12465] | 515 | my $strIdentifyText = $self->useWget($strIdentifyCMD);
|
---|
[11783] | 516 |
|
---|
[12465] | 517 | if (!defined $strIdentifyText or $strIdentifyText eq "" ){
|
---|
| 518 | print STDERR "Server information is unavailable.\n";
|
---|
| 519 | print STDERR "<<Finished>>\n";
|
---|
| 520 | return;
|
---|
| 521 | }
|
---|
| 522 |
|
---|
[11783] | 523 | print STDERR "General information:\n";
|
---|
| 524 | $self->parse_xml($strIdentifyText);
|
---|
[16791] | 525 | print STDERR "\n";
|
---|
[11783] | 526 |
|
---|
[16791] | 527 | print STDERR "=" x 10, "\n";
|
---|
| 528 | print STDERR "Metadata Format Information (metadataPrefix):\n";
|
---|
| 529 | print STDERR "=" x 10, "\n";
|
---|
| 530 |
|
---|
| 531 | my $strListMdFormatsCMD = $strBaseCMD;
|
---|
| 532 | $strListMdFormatsCMD =~ s/_OPTS_/$strListMdFormats/;
|
---|
| 533 | my $strListMdFormatsText = $self->useWget($strListMdFormatsCMD);
|
---|
| 534 |
|
---|
| 535 | $self->parse_xml($strListMdFormatsText);
|
---|
| 536 | print STDERR "\n";
|
---|
| 537 |
|
---|
| 538 | print STDERR "=" x 10, "\n";
|
---|
| 539 | print STDERR "List Information:\n";
|
---|
| 540 | print STDERR "=" x 10, "\n";
|
---|
| 541 |
|
---|
[11783] | 542 | my $strListSetCMD = $strBaseCMD;
|
---|
| 543 | $strListSetCMD =~ s/_OPTS_/$strListSets/;
|
---|
[12465] | 544 | my $strListSetsText = $self->useWget($strListSetCMD);
|
---|
| 545 |
|
---|
[11783] | 546 | $self->parse_xml($strListSetsText);
|
---|
| 547 | }
|
---|
| 548 |
|
---|
| 549 | sub parse_xml
|
---|
| 550 | {
|
---|
| 551 | my ($self) = shift (@_);
|
---|
[16791] | 552 | my ($xml_text) = @_;
|
---|
[12465] | 553 |
|
---|
[16791] | 554 | #### change this to work directly from $xml_text
|
---|
| 555 |
|
---|
[11783] | 556 | #Open a temporary file to store OAI information, and store the information to the temp file
|
---|
[16791] | 557 | my $name = &util::filename_cat($ENV{GSDLHOME},"tmp","oai.tmp");
|
---|
[11783] | 558 |
|
---|
[12465] | 559 | open(*OAIOUT,"> $name");
|
---|
| 560 |
|
---|
[16791] | 561 | print OAIOUT $xml_text;
|
---|
[12465] | 562 | close(OAIOUT);
|
---|
| 563 |
|
---|
[11783] | 564 | $self->{'temp_file_name'} = $name;
|
---|
| 565 |
|
---|
[16791] | 566 | ## print STDERR "**** xml text = $xml_text\n";
|
---|
| 567 |
|
---|
[11783] | 568 | eval {
|
---|
| 569 | $self->{'parser'}->parsefile("$name");
|
---|
[16791] | 570 | ## $self->{'parser'}->parse($xml_text);
|
---|
[11783] | 571 | };
|
---|
| 572 |
|
---|
| 573 | if ($@) {
|
---|
[16791] | 574 | die "OAI: Parsed file $name is not a well formed XML file ($@)\n";
|
---|
| 575 | ## die "OAI: Parsed text is not a well formed XML file ($@)\n";
|
---|
[11783] | 576 | }
|
---|
| 577 |
|
---|
[16791] | 578 | unlink($self->{'temp_file_name'}) or die "Could not unlink $self->{'temp_file_name'}: $!";
|
---|
[11783] | 579 | }
|
---|
| 580 |
|
---|
[16791] | 581 | ####END
|
---|
| 582 | #{
|
---|
| 583 | # if($self->{'info'})
|
---|
| 584 | # {
|
---|
| 585 | # unlink($self->{'temp_file_name'}) or die "Could not unlink $self->{'temp_file_name'}: $!";
|
---|
| 586 | # }
|
---|
| 587 | #}
|
---|
| 588 |
|
---|
[11783] | 589 | # This Char function overrides the one in XML::Parser::Stream to overcome a
|
---|
| 590 | # problem where $expat->{Text} is treated as the return value, slowing
|
---|
| 591 | # things down significantly in some cases.
|
---|
| 592 | sub Char {
|
---|
| 593 | use bytes; # Necessary to prevent encoding issues with XML::Parser 2.31+
|
---|
| 594 | $_[0]->{'Text'} .= $_[1];
|
---|
[16791] | 595 |
|
---|
| 596 | my $self = $_[0]->{'PluginObj'};
|
---|
[11783] | 597 | if ((defined $self->{'subfield'} && ($self->{'subfield'} ne ""))) {
|
---|
| 598 | $self->{'text'} .= $_[1];
|
---|
[12465] | 599 | $self->{'text'} =~ s/[\n]|([ ]{2,})//g;
|
---|
[11783] | 600 | if($self->{'text'} ne "")
|
---|
| 601 | {
|
---|
| 602 | print STDERR " $self->{'subfield'}:($self->{'text'})\n";
|
---|
| 603 | }
|
---|
| 604 | }
|
---|
| 605 | return undef;
|
---|
| 606 | }
|
---|
| 607 |
|
---|
| 608 | sub OAI_StartTag
|
---|
| 609 | {
|
---|
| 610 | my ($expat, $element, %attr) = @_;
|
---|
[12465] | 611 |
|
---|
[16791] | 612 | my $self = $expat->{'PluginObj'};
|
---|
[11783] | 613 | $self->{'subfield'} = $element;
|
---|
[12465] | 614 |
|
---|
[11783] | 615 | }
|
---|
| 616 |
|
---|
| 617 | sub OAI_EndTag
|
---|
| 618 | {
|
---|
| 619 | my ($expat, $element) = @_;
|
---|
[16791] | 620 |
|
---|
| 621 | my $self = $expat->{'PluginObj'};
|
---|
[11783] | 622 | $self->{'text'} = "";
|
---|
| 623 | $self->{'subfield'} = "";
|
---|
| 624 | }
|
---|
| 625 |
|
---|
| 626 | sub error
|
---|
| 627 | {
|
---|
[12465] | 628 | my ($self,$strFunctionName,$strError) = @_;
|
---|
[11783] | 629 | {
|
---|
| 630 | print "Error occoured in OAIDownload.pm\n".
|
---|
| 631 | "In Function:".$strFunctionName."\n".
|
---|
| 632 | "Error Message:".$strError."\n";
|
---|
| 633 | exit(-1);
|
---|
| 634 | }
|
---|
| 635 | }
|
---|
| 636 |
|
---|
| 637 |
|
---|
| 638 |
|
---|
| 639 | 1;
|
---|