| 1 | ###########################################################################
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| 2 | #
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| 3 | # WordPlug.pm -- plugin for importing Microsoft Word documents
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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 | # 12/05/02 Added usage datastructure - John Thompson
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| 26 |
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| 27 | package WordPlug;
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| 28 |
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| 29 | use ConvertToPlug;
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| 30 | use strict;
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| 31 | no strict 'refs'; # allow filehandles to be variables and viceversa
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| 32 |
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| 33 | sub BEGIN {
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| 34 | @WordPlug::ISA = ('ConvertToPlug');
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| 35 | }
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| 36 |
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| 37 | my $arguments =
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| 38 | [ { 'name' => "process_exp",
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| 39 | 'desc' => "{BasPlug.process_exp}",
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| 40 | 'type' => "regexp",
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| 41 | 'deft' => &get_default_process_exp(),
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| 42 | 'reqd' => "no" },
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| 43 | { 'name' => "description_tags",
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| 44 | 'desc' => "{HTMLPlug.description_tags}",
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| 45 | 'type' => "flag" }
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| 46 | ];
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| 47 |
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| 48 | my $options = { 'name' => "WordPlug",
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| 49 | 'desc' => "{WordPlug.desc}",
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| 50 | 'abstract' => "no",
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| 51 | 'inherits' => "yes",
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| 52 | 'srcreplaceable' => "yes", # Source docs in Word can be replaced with GS-generated html
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| 53 | 'args' => $arguments };
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| 54 |
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| 55 | sub new {
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| 56 | my ($class) = shift (@_);
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| 57 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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| 58 | push(@$pluginlist, $class);
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| 59 |
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| 60 | if ($ENV{'GSDLOS'} =~ m/^windows$/i) {
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| 61 | my $ws_arg = [ { 'name' => "windows_scripting",
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| 62 | 'desc' => "{WordPlug.windows_scripting}",
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| 63 | 'type' => "flag",
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| 64 | 'reqd' => "no" },
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| 65 | { 'name' => "metadata_fields",
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| 66 | 'type' => "string",
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| 67 | 'deft' => "Title" },
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| 68 | { 'name' => "level1_header",
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| 69 | 'desc' => "{StructuredHTMLPlug.level1_header}",
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| 70 | 'type' => "regexp",
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| 71 | 'reqd' => "no",
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| 72 | 'deft' => "" },
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| 73 | { 'name' => "level2_header",
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| 74 | 'desc' => "{StructuredHTMLPlug.level2_header}",
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| 75 | 'type' => "regexp",
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| 76 | 'reqd' => "no",
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| 77 | 'deft' => "" },
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| 78 | { 'name' => "level3_header",
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| 79 | 'desc' => "{StructuredHTMLPlug.level3_header}",
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| 80 | 'type' => "regexp",
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| 81 | 'reqd' => "no",
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| 82 | 'deft' => "" },
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| 83 | { 'name' => "title_header",
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| 84 | 'desc' => "{StructuredHTMLPlug.title_header}",
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| 85 | 'type' => "regexp",
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| 86 | 'reqd' => "no",
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| 87 | 'deft' => "" },
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| 88 | { 'name' => "delete_toc",
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| 89 | 'desc' => "{StructuredHTMLPlug.delete_toc}",
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| 90 | 'type' => "flag",
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| 91 | 'reqd' => "no",
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| 92 | # set the mode so this doesn't show up unless
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| 93 | # all the following ones do
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| 94 | 'modegli' => "3"},
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| 95 | { 'name' => "toc_header",
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| 96 | 'desc' => "{StructuredHTMLPlug.toc_header}",
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| 97 | 'type' => "regexp",
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| 98 | 'reqd' => "no",
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| 99 | 'deft' => "" }
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| 100 | ];
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| 101 |
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| 102 | push(@$arguments,@$ws_arg);
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| 103 | }
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| 104 |
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| 105 | if(defined $arguments){ push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});}
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| 106 | if(defined $options) { push(@{$hashArgOptLists->{"OptList"}},$options)};
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| 107 |
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| 108 | my $self = new ConvertToPlug($pluginlist, $inputargs, $hashArgOptLists);
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| 109 |
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| 110 | if ($self->{'info_only'}) {
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| 111 | # don't worry about any options etc
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| 112 | return bless $self, $class;
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| 113 | }
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| 114 |
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| 115 | #this is passed through to gsConvert.pl by ConvertToPlug.pm
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| 116 | $self->{'convert_options'} = "-windows_scripting" if $self->{'windows_scripting'};
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| 117 |
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| 118 | # we always save as utf-8
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| 119 | if ($self->{'input_encoding'} eq "auto") {
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| 120 | $self->{'input_encoding'} = "utf8";
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| 121 | }
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| 122 |
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| 123 | my $secondary_plugin_options = $self->{'secondary_plugin_options'};
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| 124 | if (defined $self->{'windows_scripting'}) {
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| 125 | if (!defined $secondary_plugin_options->{'StructuredHTMLPlug'}){
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| 126 | $secondary_plugin_options->{'StructuredHTMLPlug'} = [];
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| 127 | my $structhtml_options = $secondary_plugin_options->{'StructuredHTMLPlug'};
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| 128 |
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| 129 | # Instruct HTMLPlug (when eventually accessed through read_into_doc_obj)
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| 130 | # to extract these metadata fields from the HEAD META fields
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| 131 | push (@$structhtml_options,"-metadata_fields","Title,GENERATOR,date,author<Creator>");
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| 132 | push (@$structhtml_options , "-title_sub", '^(Page\s+\d+)?(\s*1\s+)?');
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| 133 | push (@$structhtml_options, "-description_tags") if $self->{'windows_scripting'};
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| 134 | push(@$structhtml_options,"-extract_language") if $self->{'extract_language'};
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| 135 | push (@$structhtml_options, "-delete_toc") if $self->{'delete_toc'};
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| 136 | push (@$structhtml_options, "-toc_header", $self->{'toc_header'}) if $self->{'toc_header'};
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| 137 | push (@$structhtml_options, "-title_header", $self->{'title_header'}) if $self->{'title_header'};
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| 138 | push (@$structhtml_options, "-level1_header", $self->{'level1_header'}) if $self->{'level1_header'};
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| 139 | push (@$structhtml_options, "-level2_header", $self->{'level2_header'})if $self->{'level2_header'};
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| 140 | push (@$structhtml_options, "-level3_header", $self->{'level3_header'}) if $self->{'level3_header'};
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| 141 | push (@$structhtml_options, "-metadata_fields", $self->{'metadata_fields'}) if $self->{'metadata_fields'};
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| 142 | }
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| 143 | }
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| 144 | if (!defined $secondary_plugin_options->{'HTMLPlug'}) {
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| 145 | $secondary_plugin_options->{'HTMLPlug'} = [];
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| 146 | }
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| 147 | if (!defined $secondary_plugin_options->{'TEXTPlug'}) {
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| 148 | $secondary_plugin_options->{'TEXTPlug'} = [];
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| 149 | }
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| 150 |
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| 151 | my $html_options = $secondary_plugin_options->{'HTMLPlug'};
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| 152 | my $text_options = $secondary_plugin_options->{'TextPlug'};
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| 153 | my $structhtml_options = $secondary_plugin_options->{'StructuredHTMLPlug'};
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| 154 | # wvWare will always produce html files encoded as utf-8, so make sure the secondary HTMLPlug knows this
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| 155 | push(@$html_options,"-input_encoding", "utf8");
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| 156 | push(@$html_options,"-extract_language") if $self->{'extract_language'};
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| 157 | push(@$html_options, "-description_tags") if $self->{'description_tags'};
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| 158 |
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| 159 | # Instruct HTMLPlug (when eventually accessed through read_into_doc_obj)
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| 160 | # to extract these metadata fields from the HEAD META fields
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| 161 | push(@$html_options,"-metadata_fields","Title,GENERATOR,date,author<Creator>");
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| 162 | push(@$html_options , "-title_sub", '^(Page\s+\d+)?(\s*1\s+)?');
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| 163 |
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| 164 | my $associate_tail_re = $self->{'associate_tail_re'};
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| 165 | if ((defined $associate_tail_re) && ($associate_tail_re ne "")) {
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| 166 | push(@$html_options, "-associate_tail_re", $associate_tail_re);
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| 167 | push(@$text_options, "-associate_tail_re", $associate_tail_re);
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| 168 | push(@$structhtml_options, "-associate_tail_re", $associate_tail_re);
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| 169 | }
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| 170 |
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| 171 | $self = bless $self, $class;
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| 172 | $self->load_secondary_plugins($class,$secondary_plugin_options,$hashArgOptLists);
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| 173 |
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| 174 | return bless $self;
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| 175 | }
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| 176 |
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| 177 | sub get_default_process_exp {
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| 178 | my $self = shift (@_);
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| 179 |
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| 180 | return q^(?i)\.(doc|dot)$^;
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| 181 | }
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| 182 |
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| 183 | sub convert_post_process
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| 184 | {
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| 185 | my $self = shift (@_);
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| 186 | my ($conv_filename) = @_;
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| 187 |
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| 188 | my $outhandle=$self->{'outhandle'};
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| 189 |
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| 190 | my ($language, $encoding) = $self->textcat_get_language_encoding ($conv_filename);
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| 191 |
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| 192 | # read in file ($text will be in utf8)
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| 193 | my $text = "";
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| 194 | $self->read_file ($conv_filename, $encoding, $language, \$text);
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| 195 |
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| 196 | # turn any high bytes that aren't valid utf-8 into utf-8.
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| 197 | #unicode::ensure_utf8(\$text);
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| 198 |
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| 199 | # Write it out again!
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| 200 | #$self->utf8_write_file (\$text, $conv_filename);
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| 201 | }
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| 202 |
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| 203 | sub get_file_type {
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| 204 | my $self = shift (@_);
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| 205 | my $file_type = "Word";
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| 206 | return $file_type;
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| 207 | }
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| 208 |
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| 209 | # Modified to cache HTML files for efficieny reasons rather
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| 210 | # than delete all. HTML is modified not to use IE's VML.
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| 211 | # VML uses WML files, so these can be deleted.
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| 212 | sub cleanup_tmp_area {
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| 213 | my ($self) = @_;
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| 214 | if (defined $self->{'files_dir'}) {
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| 215 | my $html_files_dir = $self->{'files_dir'};
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| 216 |
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| 217 | if (opendir(DIN,$html_files_dir)) {
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| 218 | my @wmz_files = grep( /\.wmz$/, readdir(DIN));
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| 219 | foreach my $f (@wmz_files) {
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| 220 | my $full_f = &util::filename_cat($html_files_dir,$f);
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| 221 | &util::rm($full_f);
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| 222 | }
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| 223 | closedir(DIN);
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| 224 | }
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| 225 | else {
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| 226 | # if HTML file has no supporting images, then no _files dir made
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| 227 | # => do nothing
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| 228 | }
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| 229 | }
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| 230 | }
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| 231 |
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| 232 | # do plugin specific processing of doc_obj for HTML type
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| 233 | sub process {
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| 234 | my $self = shift (@_);
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| 235 | my ($textref, $pluginfo, $base_dir, $file, $metadata, $doc_obj, $gli) = @_;
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| 236 |
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| 237 | return $self->process_type("doc", $base_dir, $file, $doc_obj);
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| 238 | }
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| 239 |
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| 240 | 1;
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| 241 |
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