1 | ###########################################################################
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2 | #
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3 | # HTMLPlugin.pm -- basic html plugin
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4 | #
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5 | # A component of the Greenstone digital library software
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6 | # from the New Zealand Digital Library Project at the
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7 | # University of Waikato, New Zealand.
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8 | #
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9 | # Copyright (C) 1999 New Zealand Digital Library Project
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10 | #
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11 | # This program is free software; you can redistribute it and/or modify
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12 | # it under the terms of the GNU General Public License as published by
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13 | # the Free Software Foundation; either version 2 of the License, or
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14 | # (at your option) any later version.
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15 | #
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16 | # This program is distributed in the hope that it will be useful,
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17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 | # GNU General Public License for more details.
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20 | #
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21 | # You should have received a copy of the GNU General Public License
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22 | # along with this program; if not, write to the Free Software
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23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 | #
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25 | ###########################################################################
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26 |
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27 | #
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28 | # Note that this plugin handles frames only in a very simple way
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29 | # i.e. each frame is treated as a separate document. This means
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30 | # search results will contain links to individual frames rather
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31 | # than linking to the top level frameset.
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32 | # There may also be some problems caused by the _parent target
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33 | # (it's removed by this plugin)
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34 | #
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35 |
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36 | package HTMLPlugin;
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37 |
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38 | use Encode;
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39 | use Unicode::Normalize 'normalize';
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40 |
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41 | use ReadTextFile;
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42 | use HBPlugin;
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43 | use ghtml;
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44 | use unicode;
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45 | use util;
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46 | use FileUtils;
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47 | use XMLParser;
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48 |
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49 | use File::Copy;
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50 |
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51 | sub BEGIN {
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52 | @HTMLPlugin::ISA = ('ReadTextFile', 'HBPlugin');
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53 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
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54 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib/cpan"); # for Image/Size.pm
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55 | }
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56 |
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57 | use Image::Size;
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58 |
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59 | use strict; # every perl program should have this!
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60 | no strict 'refs'; # make an exception so we can use variables as filehandles
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61 |
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62 | my $arguments =
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63 | [ { 'name' => "process_exp",
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64 | 'desc' => "{BaseImporter.process_exp}",
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65 | 'type' => "regexp",
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66 | 'deft' => &get_default_process_exp() },
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67 | { 'name' => "block_exp",
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68 | 'desc' => "{CommonUtil.block_exp}",
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69 | 'type' => 'regexp',
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70 | 'deft' => &get_default_block_exp() },
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71 | { 'name' => "nolinks",
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72 | 'desc' => "{HTMLPlugin.nolinks}",
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73 | 'type' => "flag" },
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74 | { 'name' => "keep_head",
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75 | 'desc' => "{HTMLPlugin.keep_head}",
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76 | 'type' => "flag" },
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77 | { 'name' => "no_metadata",
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78 | 'desc' => "{HTMLPlugin.no_metadata}",
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79 | 'type' => "flag" },
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80 | { 'name' => "metadata_fields",
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81 | 'desc' => "{HTMLPlugin.metadata_fields}",
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82 | 'type' => "string",
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83 | 'deft' => "Title" },
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84 | { 'name' => "metadata_field_separator",
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85 | 'desc' => "{HTMLPlugin.metadata_field_separator}",
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86 | 'type' => "string",
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87 | 'deft' => "" },
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88 | { 'name' => "hunt_creator_metadata",
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89 | 'desc' => "{HTMLPlugin.hunt_creator_metadata}",
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90 | 'type' => "flag" },
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91 | { 'name' => "file_is_url",
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92 | 'desc' => "{HTMLPlugin.file_is_url}",
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93 | 'type' => "flag" },
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94 | { 'name' => "assoc_files",
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95 | 'desc' => "{HTMLPlugin.assoc_files}",
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96 | 'type' => "regexp",
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97 | 'deft' => &get_default_block_exp() },
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98 | { 'name' => "rename_assoc_files",
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99 | 'desc' => "{HTMLPlugin.rename_assoc_files}",
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100 | 'type' => "flag" },
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101 | { 'name' => "title_sub",
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102 | 'desc' => "{HTMLPlugin.title_sub}",
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103 | 'type' => "string",
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104 | 'deft' => "" },
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105 | { 'name' => "description_tags",
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106 | 'desc' => "{HTMLPlugin.description_tags}",
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107 | 'type' => "flag" },
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108 | # retain this for backward compatibility (w3mir option was replaced by
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109 | # file_is_url)
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110 | { 'name' => "w3mir",
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111 | # 'desc' => "{HTMLPlugin.w3mir}",
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112 | 'type' => "flag",
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113 | 'hiddengli' => "yes"},
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114 | { 'name' => "no_strip_metadata_html",
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115 | 'desc' => "{HTMLPlugin.no_strip_metadata_html}",
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116 | 'type' => "string",
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117 | 'deft' => "",
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118 | 'reqd' => "no"},
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119 | { 'name' => "sectionalise_using_h_tags",
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120 | 'desc' => "{HTMLPlugin.sectionalise_using_h_tags}",
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121 | 'type' => "flag" },
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122 | { 'name' => "use_realistic_book",
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123 | 'desc' => "{HTMLPlugin.tidy_html}",
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124 | 'type' => "flag"},
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125 | { 'name' => "old_style_HDL",
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126 | 'desc' => "{HTMLPlugin.old_style_HDL}",
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127 | 'type' => "flag"},
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128 | {'name' => "processing_tmp_files",
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129 | 'desc' => "{BaseImporter.processing_tmp_files}",
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130 | 'type' => "flag",
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131 | 'hiddengli' => "yes"}
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132 | ];
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133 |
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134 | my $options = { 'name' => "HTMLPlugin",
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135 | 'desc' => "{HTMLPlugin.desc}",
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136 | 'abstract' => "no",
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137 | 'inherits' => "yes",
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138 | 'args' => $arguments };
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139 |
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140 |
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141 | sub new {
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142 | my ($class) = shift (@_);
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143 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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144 | push(@$pluginlist, $class);
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145 |
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146 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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147 | push(@{$hashArgOptLists->{"OptList"}},$options);
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148 |
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149 |
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150 | my $self = new ReadTextFile($pluginlist,$inputargs,$hashArgOptLists);
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151 |
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152 | if ($self->{'w3mir'}) {
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153 | $self->{'file_is_url'} = 1;
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154 | }
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155 | $self->{'aux_files'} = {};
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156 | $self->{'dir_num'} = 0;
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157 | $self->{'file_num'} = 0;
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158 |
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159 | return bless $self, $class;
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160 | }
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161 |
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162 | # may want to use (?i)\.(gif|jpe?g|jpe|png|css|js(?:@.*)?)$
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163 | # if have eg <script language="javascript" src="img/lib.js@123">
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164 | # blocking is now done by reading through the file and recording all the
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165 | # images and other files
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166 | sub get_default_block_exp {
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167 | my $self = shift (@_);
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168 |
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169 | #return q^(?i)\.(gif|jpe?g|jpe|jpg|png|css)$^;
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170 | return "";
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171 | }
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172 |
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173 | sub get_default_process_exp {
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174 | my $self = shift (@_);
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175 |
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176 | # the last option is an attempt to encode the concept of an html query ...
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177 | return q^(?i)(\.html?|\.shtml|\.shm|\.asp|\.php\d?|\.cgi|.+\?.+=.*)$^;
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178 | }
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179 |
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180 | sub store_block_files
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181 | {
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182 | my $self =shift (@_);
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183 | my ($filename_full_path, $block_hash) = @_;
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184 |
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185 | my $html_fname = $filename_full_path;
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186 |
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187 | my ($language, $content_encoding) = $self->textcat_get_language_encoding ($filename_full_path);
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188 | $self->{'store_content_encoding'}->{$filename_full_path} = [$content_encoding, $language];
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189 |
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190 |
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191 | # read in file ($text will be in the filesystem encoding)
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192 | my $raw_text = "";
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193 | $self->read_file_no_decoding($filename_full_path, \$raw_text);
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194 |
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195 | my $textref = \$raw_text;
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196 | my $opencom = '(?:<!--|<!(?:—|—|--))';
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197 | my $closecom = '(?:-->|(?:—|—|--)>)';
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198 | $$textref =~ s/$opencom(.*?)$closecom//gs;
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199 |
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200 | # Convert entities to their UTF8 equivalents
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201 | $$textref =~ s/&(lt|gt|amp|quot|nbsp);/&z$1;/go;
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202 | $$textref =~ s/&([^;]+);/&ghtml::getcharequiv($1,1,0)/gseo; # on this occassion, want it left as utf8
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203 | $$textref =~ s/&z(lt|gt|amp|quot|nbsp);/&$1;/go;
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204 |
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205 | my $attval = "\\\"[^\\\"]+\\\"|[^\\s>]+";
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206 | my @img_matches = ($$textref =~ m/<img[^>]*?src\s*=\s*($attval)[^>]*>/igs);
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207 | my @usemap_matches = ($$textref =~ m/<img[^>]*?usemap\s*=\s*($attval)[^>]*>/igs);
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208 | my @link_matches = ($$textref =~ m/<link[^>]*?href\s*=\s*($attval)[^>]*>/igs);
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209 | my @embed_matches = ($$textref =~ m/<embed[^>]*?src\s*=\s*($attval)[^>]*>/igs);
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210 | my @tabbg_matches = ($$textref =~ m/<(?:body|table|tr|td)[^>]*?background\s*=\s*($attval)[^>]*>/igs);
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211 | my @script_matches = ($$textref =~ m/<script[^>]*?src\s*=\s*($attval)[^>]*>/igs);
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212 |
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213 | if(!defined $self->{'unicode_to_original_filename'}) {
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214 | # maps from utf8 converted link name -> original filename referrred to by (possibly URL-encoded) src url
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215 | $self->{'unicode_to_original_filename'} = {};
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216 | }
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217 |
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218 | foreach my $raw_link (@img_matches, @usemap_matches, @link_matches, @embed_matches, @tabbg_matches, @script_matches) {
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219 |
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220 | # remove quotes from link at start and end if necessary
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221 | if ($raw_link =~ m/^\"/) {
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222 | $raw_link =~ s/^\"//;
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223 | $raw_link =~ s/\"$//;
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224 | }
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225 |
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226 | # remove any anchor names, e.g. foo.html#name becomes foo.html
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227 | # but watch out for any #'s that are part of entities, such as α
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228 | $raw_link =~ s/([^&])\#.*$/$1/s;
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229 |
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230 | # some links may just be anchor names
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231 | next unless ($raw_link =~ /\S+/);
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232 |
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233 | if ($raw_link !~ m@^/@ && $raw_link !~ m/^([A-Z]:?)\\/i) {
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234 | # Turn relative file path into full path
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235 | my $dirname = &File::Basename::dirname($filename_full_path);
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236 | $raw_link = &FileUtils::filenameConcatenate($dirname, $raw_link);
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237 | }
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238 | $raw_link = $self->eval_dir_dots($raw_link);
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239 |
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240 | # this is the actual filename on the filesystem (that the link refers to)
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241 | my $url_original_filename = $self->opt_url_decode($raw_link);
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242 |
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243 | my ($uses_bytecodes,$exceeds_bytecodes) = &unicode::analyze_raw_string($url_original_filename);
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244 |
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245 | if ($exceeds_bytecodes) {
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246 | # We have a link to a file name that is more complicated than a raw byte filename
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247 | # What we do next depends on the operating system we are on
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248 |
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249 | if ($ENV{'GSDLOS'} =~ /^(linux|solaris)$/i) {
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250 | # Assume we're dealing with a UTF-8 encoded filename
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251 | $url_original_filename = encode("utf8", $url_original_filename);
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252 | }
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253 | elsif ($ENV{'GSDLOS'} =~ /^darwin$/i) {
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254 | # HFS+ is UTF8 with decompostion
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255 | $url_original_filename = encode("utf8", $url_original_filename);
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256 | $url_original_filename = normalize('D', $url_original_filename); # Normalization Form D (decomposition)
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257 | }
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258 | elsif ($ENV{'GSDLOS'} =~ /^windows$/i) {
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259 | # Don't need to do anything as later code maps Windows
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260 | # unicode filenames to DOS short filenames when needed
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261 | }
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262 | else {
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263 | my $outhandle = $self->{'outhandle'};
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264 | print $outhandle "Warning: Unrecognized operating system ", $ENV{'GSDLOS'}, "\n";
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265 | print $outhandle " in raw file system encoding of: $raw_link\n";
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266 | print $outhandle " Assuming filesystem is UTF-8 based.\n";
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267 | $url_original_filename = encode("utf8", $url_original_filename);
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268 | }
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269 | }
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270 |
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271 | # Convert the (currently raw) link into its Unicode version.
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272 | # Store the Unicode link along with the url_original_filename
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273 | my $unicode_url_original_filename = "";
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274 | $self->decode_text($raw_link,$content_encoding,$language,\$unicode_url_original_filename);
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275 |
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276 |
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277 | $self->{'unicode_to_original_filename'}->{$unicode_url_original_filename} = $url_original_filename;
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278 |
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279 |
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280 | if ($url_original_filename ne $unicode_url_original_filename) {
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281 | my $outhandle = $self->{'outhandle'};
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282 |
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283 | print $outhandle "URL Encoding $url_original_filename\n";
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284 | print $outhandle " ->$unicode_url_original_filename\n";
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285 |
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286 | # make sure not to block the file itself, as happens when an html file links to itself
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287 | # e.g. if the current file is mary-boleyn/index.html and contains <link rel="canonical" href="index.html" />
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288 | my $unicode_html_fname = "";
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289 | $self->decode_text($html_fname,$content_encoding,$language,\$unicode_html_fname);
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290 | if($unicode_url_original_filename ne $unicode_html_fname) {
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291 | # Allow for possibility of raw byte version and Unicode versions of file
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292 | $self->block_filename($block_hash,$unicode_url_original_filename);
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293 | }
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294 | }
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295 |
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296 | # $url_original_filename = &util::upgrade_if_dos_filename($url_original_filename);
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297 | # TODO now use unicode files in block, do we need this??
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298 | $self->block_raw_filename($block_hash,$url_original_filename) if $url_original_filename ne $html_fname;
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299 |
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300 | # but only add the linked file to the blocklist if the current html file does not link to itself
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301 |
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302 | }
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303 | }
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304 |
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305 | # Given a filename in any encoding, will URL decode it to get back the original filename
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306 | # in the original encoding. Because this method is intended to work out the *original*
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307 | # filename*, it does not URL decode any filename if a file by the name of the *URL-encoded*
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308 | # string already exists in the local folder.
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309 | #
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310 | sub opt_url_decode {
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311 | my $self = shift (@_);
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312 | my ($raw_link) = @_;
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313 |
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314 |
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315 | # Replace %XX's in URL with decoded value if required.
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316 | # Note that the filename may include the %XX in some situations
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317 |
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318 | ## if ($raw_link =~ m/\%[A-F0-9]{2}/i) {
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319 |
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320 | if (($raw_link =~ m/\%[A-F0-9]{2}/i) || ($raw_link =~ m/\&\#x[0-9A-F]+;/i) || ($raw_link =~ m/\&\#[0-9]+;/i)) {
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321 | if (!-e $raw_link) {
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322 | $raw_link = &unicode::url_decode($raw_link,1);
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323 | }
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324 | }
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325 |
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326 | return $raw_link;
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327 | }
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328 |
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329 | sub read_into_doc_obj
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330 | {
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331 | my $self = shift (@_);
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332 | my ($pluginfo, $base_dir, $file, $block_hash, $metadata, $processor, $maxdocs, $total_count, $gli) = @_;
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333 |
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334 | my ($filename_full_path, $filename_no_path) = &util::get_full_filenames($base_dir, $file);
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335 |
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336 | # Lookup content_encoding and language worked out in file_block pass for this file
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337 | # Store them under the local names they are nice and easy to access
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338 | $self->{'content_encoding'} = $self->{'store_content_encoding'}->{$filename_full_path}[0];
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339 | $self->{'language'} = $self->{'store_content_encoding'}->{$filename_full_path}[1];
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340 |
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341 | # get the input file
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342 | my $input_filename = $file;
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343 | my ($tailname, $dirname, $suffix) = &File::Basename::fileparse($input_filename, "\\.[^\\.]+\$");
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344 | $suffix = lc($suffix);
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345 | my $tidy_filename;
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346 | if (($self->{'use_realistic_book'}) || ($self->{'old_style_HDL'}))
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347 | {
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348 | # because the document has to be sectionalized set the description tags
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349 | $self->{'description_tags'} = 1;
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350 |
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351 | # set the file to be tidied
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352 | $input_filename = &FileUtils::filenameConcatenate($base_dir,$file) if $base_dir =~ m/\w/;
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353 |
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354 | # get the tidied file
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355 | #my $tidy_filename = $self->tmp_tidy_file($input_filename);
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356 | $tidy_filename = $self->convert_tidy_or_oldHDL_file($input_filename);
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357 |
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358 | # derive tmp filename from input filename
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359 | my ($tailname, $dirname, $suffix) = &File::Basename::fileparse($tidy_filename, "\\.[^\\.]+\$");
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360 |
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361 | # set the new input file and base_dir to be from the tidied file
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362 | $file = "$tailname$suffix";
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363 | $base_dir = $dirname;
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364 | }
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365 |
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366 | # call the parent read_into_doc_obj
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367 | my ($process_status,$doc_obj) = $self->SUPER::read_into_doc_obj($pluginfo, $base_dir, $file, $block_hash, $metadata, $processor, $maxdocs, $total_count, $gli);
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368 | if (($self->{'use_realistic_book'}) || ($self->{'old_style_HDL'}))
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369 | {
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370 | # now we need to reset the filenames in the doc obj so that the converted filenames are not used
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371 | my $collect_file = &util::filename_within_collection($filename_full_path);
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372 | $doc_obj->set_source_filename ($collect_file, $self->{'file_rename_method'});
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373 | ## set_source_filename does not set the doc_obj source_path which is used in archives dbs for incremental
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374 | # build. So set it manually.
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375 | $doc_obj->set_source_path($filename_full_path);
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376 | my $collect_conv_file = &util::filename_within_collection($tidy_filename);
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377 | $doc_obj->set_converted_filename($collect_conv_file);
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378 |
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379 | my $plugin_filename_encoding = $self->{'filename_encoding'};
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380 | my $filename_encoding = $self->deduce_filename_encoding($file,$metadata,$plugin_filename_encoding);
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381 | $self->set_Source_metadata($doc_obj, $filename_full_path, $filename_encoding);
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382 | }
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383 |
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384 | delete $self->{'store_content_encoding'}->{$filename_full_path};
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385 | $self->{'content_encoding'} = undef;
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386 |
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387 | return ($process_status,$doc_obj);
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388 | }
|
---|
389 |
|
---|
390 | # do plugin specific processing of doc_obj
|
---|
391 | sub process {
|
---|
392 | my $self = shift (@_);
|
---|
393 | my ($textref, $pluginfo, $base_dir, $file, $metadata, $doc_obj, $gli) = @_;
|
---|
394 | my $outhandle = $self->{'outhandle'};
|
---|
395 |
|
---|
396 | if ($ENV{'GSDLOS'} =~ m/^windows/i) {
|
---|
397 | # this makes life so much easier... perl can cope with unix-style '/'s.
|
---|
398 | $base_dir =~ s@(\\)+@/@g;
|
---|
399 | $file =~ s@(\\)+@/@g;
|
---|
400 | }
|
---|
401 |
|
---|
402 | my $filename = &FileUtils::filenameConcatenate($base_dir,$file);
|
---|
403 | my $upgraded_base_dir = &util::upgrade_if_dos_filename($base_dir);
|
---|
404 | my $upgraded_filename = &util::upgrade_if_dos_filename($filename);
|
---|
405 |
|
---|
406 | if ($ENV{'GSDLOS'} =~ m/^windows/i) {
|
---|
407 | # And again
|
---|
408 | $upgraded_base_dir =~ s@(\\)+@/@g;
|
---|
409 | $upgraded_filename =~ s@(\\)+@/@g;
|
---|
410 |
|
---|
411 | # Need to make sure there is a '/' on the end of upgraded_base_dir
|
---|
412 | if (($upgraded_base_dir ne "") && ($upgraded_base_dir !~ m/\/$/)) {
|
---|
413 | $upgraded_base_dir .= "/";
|
---|
414 | }
|
---|
415 | }
|
---|
416 | my $upgraded_file = &util::filename_within_directory($upgraded_filename,$upgraded_base_dir);
|
---|
417 |
|
---|
418 | # reset per-doc stuff...
|
---|
419 | $self->{'aux_files'} = {};
|
---|
420 | $self->{'dir_num'} = 0;
|
---|
421 | $self->{'file_num'} = 0;
|
---|
422 |
|
---|
423 | # process an HTML file where sections are divided by headings tags (H1, H2 ...)
|
---|
424 | # you can also include metadata in the format (X can be any number)
|
---|
425 | # <hX>Title<!--gsdl-metadata
|
---|
426 | # <Metadata name="name1">value1</Metadata>
|
---|
427 | # ...
|
---|
428 | # <Metadata name="nameN">valueN</Metadata>
|
---|
429 | #--></hX>
|
---|
430 | if ($self->{'sectionalise_using_h_tags'}) {
|
---|
431 | # description_tags should allways be activated because we convert headings to description tags
|
---|
432 | $self->{'description_tags'} = 1;
|
---|
433 |
|
---|
434 | my $arrSections = [];
|
---|
435 | $$textref =~ s/<h([0-9]+)[^>]*>(.*?)<\/h[0-9]+>/$self->process_heading($1, $2, $arrSections, $upgraded_file)/isge;
|
---|
436 |
|
---|
437 | if (scalar(@$arrSections)) {
|
---|
438 | my $strMetadata = $self->update_section_data($arrSections, -1);
|
---|
439 | if (length($strMetadata)) {
|
---|
440 | $strMetadata = '<!--' . $strMetadata . "\n-->\n</body>";
|
---|
441 | $$textref =~ s/<\/body>/$strMetadata/ig;
|
---|
442 | }
|
---|
443 | }
|
---|
444 | }
|
---|
445 |
|
---|
446 | my $cursection = $doc_obj->get_top_section();
|
---|
447 |
|
---|
448 | $self->extract_metadata ($textref, $metadata, $doc_obj, $cursection)
|
---|
449 | unless $self->{'no_metadata'} || $self->{'description_tags'};
|
---|
450 |
|
---|
451 | # Store URL for page as metadata - this can be used for an
|
---|
452 | # altavista style search interface. The URL won't be valid
|
---|
453 | # unless the file structure contains the domain name (i.e.
|
---|
454 | # like when w3mir is used to download a website).
|
---|
455 |
|
---|
456 | # URL metadata (even invalid ones) are used to support internal
|
---|
457 | # links, so even if 'file_is_url' is off, still need to store info
|
---|
458 |
|
---|
459 | my ($tailname,$dirname) = &File::Basename::fileparse($upgraded_file);
|
---|
460 |
|
---|
461 | # my $utf8_file = $self->filename_to_utf8_metadata($file);
|
---|
462 | # $utf8_file =~ s/&\#095;/_/g;
|
---|
463 | # variable below used to be utf8_file
|
---|
464 |
|
---|
465 | my $url_encoded_file = &unicode::raw_filename_to_url_encoded($tailname);
|
---|
466 | my $utf8_url_encoded_file = &unicode::raw_filename_to_utf8_url_encoded($tailname);
|
---|
467 |
|
---|
468 | my $web_url = "http://";
|
---|
469 | my $utf8_web_url = "http://";
|
---|
470 |
|
---|
471 | if(defined $dirname) { # local directory
|
---|
472 |
|
---|
473 | # Check for "ftp" in the domain name of the directory
|
---|
474 | # structure to determine if this URL should be a ftp:// URL
|
---|
475 | # This check is not infallible, but better than omitting the
|
---|
476 | # check, which would cause all files downloaded from ftp sites
|
---|
477 | # via mirroring with wget to have potentially erroneous http:// URLs
|
---|
478 | # assigned in their metadata
|
---|
479 | if ($dirname =~ /^[^\/]*ftp/i)
|
---|
480 | {
|
---|
481 | $web_url = "ftp://";
|
---|
482 | $utf8_web_url = "ftp://";
|
---|
483 | }
|
---|
484 | $dirname = $self->eval_dir_dots($dirname);
|
---|
485 | $dirname .= &util::get_dirsep() if $dirname ne ""; # if there's a directory, it should end on "/"
|
---|
486 |
|
---|
487 | # this local directory in import may need to be URL encoded like the file
|
---|
488 | my $url_encoded_dir = &unicode::raw_filename_to_url_encoded($dirname);
|
---|
489 | my $utf8_url_encoded_dir = &unicode::raw_filename_to_utf8_url_encoded($dirname);
|
---|
490 |
|
---|
491 | # changed here
|
---|
492 | $web_url = $web_url.$url_encoded_dir.$url_encoded_file;
|
---|
493 | $utf8_web_url = $utf8_web_url.$utf8_url_encoded_dir.$utf8_url_encoded_file;
|
---|
494 | } else {
|
---|
495 | $web_url = $web_url.$url_encoded_file;
|
---|
496 | $utf8_web_url = $utf8_web_url.$utf8_url_encoded_file;
|
---|
497 | }
|
---|
498 | $web_url =~ s/\\/\//g;
|
---|
499 | $utf8_web_url =~ s/\\/\//g;
|
---|
500 |
|
---|
501 | if ((defined $ENV{"DEBUG_UNICODE"}) && ($ENV{"DEBUG_UNICODE"})) {
|
---|
502 | print STDERR "*******DEBUG: upgraded_file: $upgraded_file\n";
|
---|
503 | print STDERR "*******DEBUG: adding URL metadata: $utf8_url_encoded_file\n";
|
---|
504 | print STDERR "*******DEBUG: web url: $web_url\n";
|
---|
505 | print STDERR "*******DEBUG: utf8 web url: $utf8_web_url\n";
|
---|
506 | }
|
---|
507 |
|
---|
508 |
|
---|
509 | $doc_obj->add_utf8_metadata($cursection, "URL", $web_url);
|
---|
510 | $doc_obj->add_utf8_metadata($cursection, "UTF8URL", $utf8_web_url);
|
---|
511 |
|
---|
512 | if ($self->{'file_is_url'}) {
|
---|
513 | $doc_obj->add_metadata($cursection, "weblink", "<a href=\"$web_url\">");
|
---|
514 | $doc_obj->add_metadata($cursection, "webicon", "_iconworld_");
|
---|
515 | $doc_obj->add_metadata($cursection, "/weblink", "</a>");
|
---|
516 | }
|
---|
517 |
|
---|
518 | if ($self->{'description_tags'}) {
|
---|
519 | # remove the html header - note that doing this here means any
|
---|
520 | # sections defined within the header will be lost (so all <Section>
|
---|
521 | # tags must appear within the body of the HTML)
|
---|
522 | my ($head_keep) = ($$textref =~ m/^(.*?)<body[^>]*>/is);
|
---|
523 |
|
---|
524 | $$textref =~ s/^.*?<body[^>]*>//is;
|
---|
525 | $$textref =~ s/(<\/body[^>]*>|<\/html[^>]*>)//isg;
|
---|
526 |
|
---|
527 | my $opencom = '(?:<!--|<!(?:—|—|--))';
|
---|
528 | my $closecom = '(?:-->|(?:—|—|--)>)';
|
---|
529 |
|
---|
530 | my $lt = '(?:<|<)';
|
---|
531 | my $gt = '(?:>|>)';
|
---|
532 | my $quot = '(?:"|"|”|“)';
|
---|
533 |
|
---|
534 | my $dont_strip = '';
|
---|
535 | if ($self->{'no_strip_metadata_html'}) {
|
---|
536 | ($dont_strip = $self->{'no_strip_metadata_html'}) =~ s{,}{|}g;
|
---|
537 | }
|
---|
538 |
|
---|
539 | my $found_something = 0; my $top = 1;
|
---|
540 | while ($$textref =~ s/^(.*?)$opencom(.*?)$closecom//s) {
|
---|
541 | my $text = $1;
|
---|
542 | my $comment = $2;
|
---|
543 | if (defined $text) {
|
---|
544 | # text before a comment - note that getting to here
|
---|
545 | # doesn't necessarily mean there are Section tags in
|
---|
546 | # the document
|
---|
547 | $self->process_section(\$text, $upgraded_base_dir, $upgraded_file, $doc_obj, $cursection);
|
---|
548 | }
|
---|
549 | while ($comment =~ s/$lt(.*?)$gt//s) {
|
---|
550 | my $tag = $1;
|
---|
551 | if ($tag eq "Section") {
|
---|
552 | $found_something = 1;
|
---|
553 | $cursection = $doc_obj->insert_section($doc_obj->get_end_child($cursection)) unless $top;
|
---|
554 | $top = 0;
|
---|
555 | } elsif ($tag eq "/Section") {
|
---|
556 | $found_something = 1;
|
---|
557 | $cursection = $doc_obj->get_parent_section ($cursection);
|
---|
558 | } elsif ($tag =~ m/^Metadata name=$quot(.*?)$quot/s) {
|
---|
559 | my $metaname = $1;
|
---|
560 | my $accumulate = $tag =~ m/mode=${quot}accumulate${quot}/ ? 1 : 0;
|
---|
561 | $comment =~ s/^(.*?)$lt\/Metadata$gt//s;
|
---|
562 | my $metavalue = $1;
|
---|
563 | $metavalue =~ s/^\s+//;
|
---|
564 | $metavalue =~ s/\s+$//;
|
---|
565 | # assume that no metadata value intentionally includes
|
---|
566 | # carriage returns or HTML tags (if they're there they
|
---|
567 | # were probably introduced when converting to HTML from
|
---|
568 | # some other format).
|
---|
569 | # actually some people want to have html tags in their
|
---|
570 | # metadata.
|
---|
571 | $metavalue =~ s/[\cJ\cM]/ /sg;
|
---|
572 | $metavalue =~ s/<[^>]+>//sg
|
---|
573 | unless $dont_strip && ($dont_strip eq 'all' || $metaname =~ m/^($dont_strip)$/);
|
---|
574 | $metavalue =~ s/\s+/ /sg;
|
---|
575 | if ($metaname =~ /\./) { # has a namespace
|
---|
576 | $metaname = "ex.$metaname";
|
---|
577 | }
|
---|
578 | if ($accumulate) {
|
---|
579 | $doc_obj->add_utf8_metadata($cursection, $metaname, $metavalue);
|
---|
580 | } else {
|
---|
581 | $doc_obj->set_utf8_metadata_element($cursection, $metaname, $metavalue);
|
---|
582 | }
|
---|
583 | } elsif ($tag eq "Description" || $tag eq "/Description") {
|
---|
584 | # do nothing with containing Description tags
|
---|
585 | } else {
|
---|
586 | # simple HTML tag (probably created by the conversion
|
---|
587 | # to HTML from some other format) - we'll ignore it and
|
---|
588 | # hope for the best ;-)
|
---|
589 | }
|
---|
590 | }
|
---|
591 | }
|
---|
592 | if ($cursection ne "") {
|
---|
593 | print $outhandle "HTMLPlugin: WARNING: $upgraded_file contains unmatched <Section></Section> tags\n";
|
---|
594 | }
|
---|
595 |
|
---|
596 | $$textref =~ s/^.*?<body[^>]*>//is;
|
---|
597 | $$textref =~ s/(<\/body[^>]*>|<\/html[^>]*>)//isg;
|
---|
598 | if ($$textref =~ m/\S/) {
|
---|
599 | if (!$found_something) {
|
---|
600 | if ($self->{'verbosity'} > 2) {
|
---|
601 | print $outhandle "HTMLPlugin: WARNING: $upgraded_file appears to contain no Section tags so\n";
|
---|
602 | print $outhandle " will be processed as a single section document\n";
|
---|
603 | }
|
---|
604 |
|
---|
605 | # go ahead and process single-section document
|
---|
606 | $self->process_section($textref, $upgraded_base_dir, $upgraded_file, $doc_obj, $cursection);
|
---|
607 |
|
---|
608 | # if document contains no Section tags we'll go ahead
|
---|
609 | # and extract metadata (this won't have been done
|
---|
610 | # above as the -description_tags option prevents it)
|
---|
611 | my $complete_text = $head_keep.$doc_obj->get_text($cursection);
|
---|
612 | $self->extract_metadata (\$complete_text, $metadata, $doc_obj, $cursection)
|
---|
613 | unless $self->{'no_metadata'};
|
---|
614 |
|
---|
615 | } else {
|
---|
616 | print $outhandle "HTMLPlugin: WARNING: $upgraded_file contains the following text outside\n";
|
---|
617 | print $outhandle " of the final closing </Section> tag. This text will\n";
|
---|
618 | print $outhandle " be ignored.";
|
---|
619 |
|
---|
620 | my ($text);
|
---|
621 | if (length($$textref) > 30) {
|
---|
622 | $text = substr($$textref, 0, 30) . "...";
|
---|
623 | } else {
|
---|
624 | $text = $$textref;
|
---|
625 | }
|
---|
626 | $text =~ s/\n/ /isg;
|
---|
627 | print $outhandle " ($text)\n";
|
---|
628 | }
|
---|
629 | } elsif (!$found_something) {
|
---|
630 |
|
---|
631 | if ($self->{'verbosity'} > 2) {
|
---|
632 | # may get to here if document contained no valid Section
|
---|
633 | # tags but did contain some comments. The text will have
|
---|
634 | # been processed already but we should print the warning
|
---|
635 | # as above and extract metadata
|
---|
636 | print $outhandle "HTMLPlugin: WARNING: $upgraded_file appears to contain no Section tags and\n";
|
---|
637 | print $outhandle " is blank or empty. Metadata will be assigned if present.\n";
|
---|
638 | }
|
---|
639 |
|
---|
640 | my $complete_text = $head_keep.$doc_obj->get_text($cursection);
|
---|
641 | $self->extract_metadata (\$complete_text, $metadata, $doc_obj, $cursection)
|
---|
642 | unless $self->{'no_metadata'};
|
---|
643 | }
|
---|
644 | $self->replace_section_links($doc_obj);
|
---|
645 | } else {
|
---|
646 |
|
---|
647 | # remove header and footer
|
---|
648 | if (!$self->{'keep_head'} || $self->{'description_tags'}) {
|
---|
649 | $$textref =~ s/^.*?<body[^>]*>//is;
|
---|
650 | $$textref =~ s/(<\/body[^>]*>|<\/html[^>]*>)//isg;
|
---|
651 | }
|
---|
652 |
|
---|
653 | $self->{'css_assoc_files'} = {};
|
---|
654 |
|
---|
655 | # single section document
|
---|
656 | $self->process_section($textref, $upgraded_base_dir, $upgraded_file, $doc_obj, $cursection);
|
---|
657 |
|
---|
658 | #my $upgraded_filename_dirname = &File::Basename::dirname($upgraded_filename);
|
---|
659 |
|
---|
660 | $self->acquire_css_associated_files($doc_obj, $cursection);
|
---|
661 |
|
---|
662 | $self->{'css_assoc_files'} = {};
|
---|
663 | }
|
---|
664 |
|
---|
665 | return 1;
|
---|
666 | }
|
---|
667 |
|
---|
668 |
|
---|
669 | sub process_heading
|
---|
670 | {
|
---|
671 | my ($self, $nHeadNo, $strHeadingText, $arrSections, $file) = @_;
|
---|
672 | $strHeadingText = '' if (!defined($strHeadingText));
|
---|
673 |
|
---|
674 | my $strMetadata = $self->update_section_data($arrSections, int($nHeadNo));
|
---|
675 |
|
---|
676 | my $strSecMetadata = '';
|
---|
677 | while ($strHeadingText =~ s/<!--gsdl-metadata(.*?)-->//is)
|
---|
678 | {
|
---|
679 | $strSecMetadata .= $1;
|
---|
680 | }
|
---|
681 |
|
---|
682 | $strHeadingText =~ s/^\s+//g;
|
---|
683 | $strHeadingText =~ s/\s+$//g;
|
---|
684 | $strSecMetadata =~ s/^\s+//g;
|
---|
685 | $strSecMetadata =~ s/\s+$//g;
|
---|
686 |
|
---|
687 | $strMetadata .= "\n<Section>\n\t<Description>\n\t\t<Metadata name=\"Title\">" . $strHeadingText . "</Metadata>\n";
|
---|
688 |
|
---|
689 | if (length($strSecMetadata)) {
|
---|
690 | $strMetadata .= "\t\t" . $strSecMetadata . "\n";
|
---|
691 | }
|
---|
692 |
|
---|
693 | $strMetadata .= "\t</Description>\n";
|
---|
694 |
|
---|
695 | return "<!--" . $strMetadata . "-->";
|
---|
696 | }
|
---|
697 |
|
---|
698 |
|
---|
699 | sub update_section_data
|
---|
700 | {
|
---|
701 | my ($self, $arrSections, $nCurTocNo) = @_;
|
---|
702 | my ($strBuffer, $nLast, $nSections) = ('', 0, scalar(@$arrSections));
|
---|
703 |
|
---|
704 | if ($nSections == 0) {
|
---|
705 | push @$arrSections, $nCurTocNo;
|
---|
706 | return $strBuffer;
|
---|
707 | }
|
---|
708 | $nLast = $arrSections->[$nSections - 1];
|
---|
709 | if ($nCurTocNo > $nLast) {
|
---|
710 | push @$arrSections, $nCurTocNo;
|
---|
711 | return $strBuffer;
|
---|
712 | }
|
---|
713 | for(my $i = $nSections - 1; $i >= 0; $i--) {
|
---|
714 | if ($nCurTocNo <= $arrSections->[$i]) {
|
---|
715 | $strBuffer .= "\n</Section>";
|
---|
716 | pop @$arrSections;
|
---|
717 | }
|
---|
718 | }
|
---|
719 | push @$arrSections, $nCurTocNo;
|
---|
720 | return $strBuffer;
|
---|
721 | }
|
---|
722 |
|
---|
723 |
|
---|
724 | # note that process_section may be called multiple times for a single
|
---|
725 | # section (relying on the fact that add_utf8_text appends the text to any
|
---|
726 | # that may exist already).
|
---|
727 | sub process_section {
|
---|
728 | my $self = shift (@_);
|
---|
729 | my ($textref, $base_dir, $file, $doc_obj, $cursection) = @_;
|
---|
730 |
|
---|
731 | my @styleTagsText = ($$textref =~ m/<style[^>]*>([^<]*)<\/style>/sg);
|
---|
732 | if(scalar(@styleTagsText) > 0)
|
---|
733 | {
|
---|
734 | my $css_filename_dirname = &File::Basename::dirname(&FileUtils::filenameConcatenate($base_dir, $file));
|
---|
735 | foreach my $styleText (@styleTagsText)
|
---|
736 | {
|
---|
737 | $self->acquire_css_associated_files_from_text_block($styleText, $css_filename_dirname);
|
---|
738 | }
|
---|
739 | }
|
---|
740 |
|
---|
741 | # trap links
|
---|
742 | if (!$self->{'nolinks'}) {
|
---|
743 | # usemap="./#index" not handled correctly => change to "#index"
|
---|
744 | ## $$textref =~ s/(<img[^>]*?usemap\s*=\s*[\"\']?)([^\"\'>\s]+)([\"\']?[^>]*>)/
|
---|
745 |
|
---|
746 | ## my $opencom = '(?:<!--|<!(?:—|—|--))';
|
---|
747 | ## my $closecom = '(?:-->|(?:—|—|--)>)';
|
---|
748 |
|
---|
749 | $$textref =~ s/(<img[^>]*?usemap\s*=\s*)((?:[\"][^\"]+[\"])|(?:[\'][^\']+[\'])|(?:[^\s\/>]+))([^>]*>)/
|
---|
750 | $self->replace_usemap_links($1, $2, $3)/isge;
|
---|
751 |
|
---|
752 | $$textref =~ s/(<(?:a|area|frame|link|script)\s+[^>]*?\s*(?:href|src)\s*=\s*)((?:[\"][^\"]+[\"])|(?:[\'][^\']+[\'])|(?:[^\s\/>]+))([^>]*>)/
|
---|
753 | $self->replace_href_links ($1, $2, $3, $base_dir, $file, $doc_obj, $cursection)/isge;
|
---|
754 |
|
---|
755 | ## $$textref =~ s/($opencom.*?)?+(<(?:a|area|frame|link|script)\s+[^>]*?\s*(?:href|src)\s*=\s*)((?:[\"][^\"]+[\"])|(?:[\'][^\']+[\'])|(?:[^\s\/>]+))([^>]*>)(.*?$closecom)?+/
|
---|
756 | # $self->replace_href_links ($1, $2, $3, $4, $5, $base_dir, $file, $doc_obj, $cursection)/isge;
|
---|
757 | }
|
---|
758 |
|
---|
759 | # trap images
|
---|
760 |
|
---|
761 | # Previously, by default, HTMLPlugin would embed <img> tags inside anchor tags
|
---|
762 | # i.e. <a href="image><img src="image"></a> in order to overcome a problem that
|
---|
763 | # turned regular text succeeding images into links. That is, by embedding <imgs>
|
---|
764 | # inside <a href=""></a>, the text following images were no longer misbehaving.
|
---|
765 | # However, there would be many occasions whereby images were not meant to link
|
---|
766 | # to their source images but where the images would link to another web page.
|
---|
767 | # To allow this, the no_image_links option was introduced: it would prevent
|
---|
768 | # the behaviour of embedding images into links that referenced the source images.
|
---|
769 |
|
---|
770 | # Somewhere along the line, the problem of normal text turning into links when
|
---|
771 | # such text followed images which were not embedded in <a href=""></a> ceased
|
---|
772 | # to occur. This is why the following lines have been commented out (as well as
|
---|
773 | # two lines in replace_images). They appear to no longer apply.
|
---|
774 |
|
---|
775 | # If at any time, there is a need for having images embedded in <a> anchor tags,
|
---|
776 | # then it might be better to turn that into an HTMLPlugin option rather than make
|
---|
777 | # it the default behaviour. Also, eventually, no_image_links needs to become
|
---|
778 | # a deprecated option for HTMLPlugin as it has now become the default behaviour.
|
---|
779 |
|
---|
780 | #if(!$self->{'no_image_links'}){
|
---|
781 | $$textref =~ s/(<(?:img|embed|table|tr|td)[^>]*?(?:src|background)\s*=\s*)((?:[\"][^\"]+[\"])|(?:[\'][^\']+[\'])|(?:[^\s\/>]+))([^>]*>)/
|
---|
782 | $self->replace_images ($1, $2, $3, $base_dir, $file, $doc_obj, $cursection)/isge;
|
---|
783 | #}
|
---|
784 |
|
---|
785 | # add text to document object
|
---|
786 | # turn \ into \\ so that the rest of greenstone doesn't think there
|
---|
787 | # is an escape code following. (Macro parsing loses them...)
|
---|
788 | $$textref =~ s/\\/\\\\/go;
|
---|
789 |
|
---|
790 | $doc_obj->add_utf8_text($cursection, $$textref);
|
---|
791 | }
|
---|
792 |
|
---|
793 | sub replace_images {
|
---|
794 | my $self = shift (@_);
|
---|
795 | my ($front, $link, $back, $base_dir,
|
---|
796 | $file, $doc_obj, $section) = @_;
|
---|
797 |
|
---|
798 | # remove quotes from link at start and end if necessary
|
---|
799 | if ($link=~/^[\"\']/) {
|
---|
800 | $link=~s/^[\"\']//;
|
---|
801 | $link=~s/[\"\']$//;
|
---|
802 | $front.='"';
|
---|
803 | $back="\"$back";
|
---|
804 | }
|
---|
805 |
|
---|
806 | $link =~ s/\n/ /g;
|
---|
807 |
|
---|
808 | # Hack to overcome Windows wv 0.7.1 bug that causes embedded images to be broken
|
---|
809 | # If the Word file path has spaces in it, wv messes up and you end up with
|
---|
810 | # absolute paths for the images, and without the "file://" prefix
|
---|
811 | # So check for this special case and massage the data to be correct
|
---|
812 | if ($ENV{'GSDLOS'} =~ m/^windows/i && $self->{'plugin_type'} eq "WordPlug" && $link =~ m/^[A-Za-z]\:\\/) {
|
---|
813 | $link =~ s/^.*\\([^\\]+)$/$1/;
|
---|
814 | }
|
---|
815 |
|
---|
816 | my ($href, $hash_part, $rl) = $self->format_link ($link, $base_dir, $file);
|
---|
817 |
|
---|
818 | my $img_file = $self->add_file ($href, $rl, $hash_part, $base_dir, $doc_obj, $section);
|
---|
819 |
|
---|
820 | # print STDERR "**** link = $link\n**** href = $href\n**** img_file = $img_file, rl = $rl\n\n";
|
---|
821 |
|
---|
822 | my $anchor_name = $img_file;
|
---|
823 | #$anchor_name =~ s/^.*\///;
|
---|
824 | #$anchor_name = "<a name=\"$anchor_name\" ></a>";
|
---|
825 |
|
---|
826 | my $image_link = $front . $img_file .$back;
|
---|
827 | return $image_link;
|
---|
828 |
|
---|
829 | # The reasons for why the following two lines are no longer necessary can be
|
---|
830 | # found in subroutine process_section
|
---|
831 | #my $anchor_link = "<a href=\"$img_file\" >".$image_link."</a>";
|
---|
832 | #return $anchor_link;
|
---|
833 |
|
---|
834 | #return $front . $img_file . $back . $anchor_name;
|
---|
835 | }
|
---|
836 |
|
---|
837 | sub replace_href_links {
|
---|
838 | my $self = shift (@_);
|
---|
839 | my ($front, $link, $back, $base_dir, $file, $doc_obj, $section) = @_;
|
---|
840 |
|
---|
841 | if($front =~ m/^<link / && $link =~ m/\.css"$/)
|
---|
842 | {
|
---|
843 | my $actual_link = $link;
|
---|
844 | $actual_link =~ s/^"(.*)"$/$1/;
|
---|
845 |
|
---|
846 | my $directory = &File::Basename::dirname($file);
|
---|
847 |
|
---|
848 | my $css_filename = &FileUtils::filenameConcatenate($base_dir, $directory, $actual_link);
|
---|
849 | $self->retrieve_css_associated_files($css_filename);
|
---|
850 | }
|
---|
851 |
|
---|
852 | # remove quotes from link at start and end if necessary
|
---|
853 | if ($link=~/^[\"\']/) {
|
---|
854 | $link=~s/^[\"\']//;
|
---|
855 | $link=~s/[\"\']$//;
|
---|
856 | $front.='"';
|
---|
857 | $back="\"$back";
|
---|
858 | }
|
---|
859 |
|
---|
860 | # can't remember adding this :-( must have had a reason though...
|
---|
861 | if ($link =~ /^\_http/ || $link =~ /^\_libraryname\_/) {
|
---|
862 | # assume it is a greenstone one and leave alone
|
---|
863 | return $front . $link . $back;
|
---|
864 | }
|
---|
865 |
|
---|
866 | # attempt to sort out targets - frames are not handled
|
---|
867 | # well in this plugin and some cases will screw things
|
---|
868 | # up - e.g. the _parent target (so we'll just remove
|
---|
869 | # them all ;-)
|
---|
870 | $front =~ s/(target=\"?)_top(\"?)/$1_gsdltop_$2/is;
|
---|
871 | $back =~ s/(target=\"?)_top(\"?)/$1_gsdltop_$2/is;
|
---|
872 | $front =~ s/target=\"?_parent\"?//is;
|
---|
873 | $back =~ s/target=\"?_parent\"?//is;
|
---|
874 |
|
---|
875 | if($link =~ m/^\#/s)
|
---|
876 | {
|
---|
877 | return $front . "_httpsamepagelink_" . $link . $back;
|
---|
878 | }
|
---|
879 |
|
---|
880 | $link =~ s/\n/ /g;
|
---|
881 |
|
---|
882 | # Find file referred to by $link on file system
|
---|
883 | # This is more complicated than it sounds when char encodings
|
---|
884 | # is taken in to account
|
---|
885 | my ($href, $hash_part, $rl) = $self->format_link ($link, $base_dir, $file);
|
---|
886 |
|
---|
887 | # href may use '\'s where '/'s should be on Windows
|
---|
888 | $href =~ s/\\/\//g;
|
---|
889 | my ($filename) = $href =~ m/^(?:.*?):(?:\/\/)?(.*)/;
|
---|
890 |
|
---|
891 | ##### leave all these links alone (they won't be picked up by intermediate
|
---|
892 | ##### pages). I think that's safest when dealing with frames, targets etc.
|
---|
893 | ##### (at least until I think of a better way to do it). Problems occur with
|
---|
894 | ##### mailto links from within small frames, the intermediate page is displayed
|
---|
895 | ##### within that frame and can't be seen. There is still potential for this to
|
---|
896 | ##### happen even with html pages - the solution seems to be to somehow tell
|
---|
897 | ##### the browser from the server side to display the page being sent (i.e.
|
---|
898 | ##### the intermediate page) in the top level window - I'm not sure if that's
|
---|
899 | ##### possible - the following line should probably be deleted if that can be done
|
---|
900 | return $front . $link . $back if $href =~ m/^(mailto|news|gopher|nntp|telnet|javascript):/is;
|
---|
901 |
|
---|
902 | if (($rl == 0) || ($filename =~ m/$self->{'process_exp'}/) ||
|
---|
903 | ($href =~ m/\/$/) || ($href =~ m/^(mailto|news|gopher|nntp|telnet|javascript):/i)) {
|
---|
904 |
|
---|
905 | if ($ENV{'GSDLOS'} =~ m/^windows$/) {
|
---|
906 |
|
---|
907 | # Don't do any encoding for now, as not clear what
|
---|
908 | # the right thing to do is to support filename
|
---|
909 | # encoding on Windows when they are not UTF16
|
---|
910 | #
|
---|
911 | }
|
---|
912 | else {
|
---|
913 | # => Unix-based system
|
---|
914 |
|
---|
915 | # If web page didn't give encoding, then default to utf8
|
---|
916 | my $content_encoding= $self->{'content_encoding'} || "utf8";
|
---|
917 |
|
---|
918 | if ((defined $ENV{"DEBUG_UNICODE"}) && ($ENV{"DEBUG_UNICODE"})) {
|
---|
919 | print STDERR "**** Encoding with '$content_encoding', href: $href\n";
|
---|
920 | }
|
---|
921 |
|
---|
922 | # on Darwin, the unicode filenames are stored on the file
|
---|
923 | # system in decomposed form, so any href link (including when
|
---|
924 | # URL-encoded) should refer to the decomposed name of the file
|
---|
925 | if ($ENV{'GSDLOS'} =~ /^darwin$/i) {
|
---|
926 | $href = normalize('D', $href); # Normalization Form D (decomposition)
|
---|
927 | }
|
---|
928 |
|
---|
929 | $href = encode($content_encoding,$href);
|
---|
930 | }
|
---|
931 |
|
---|
932 | $href = &unicode::raw_filename_to_utf8_url_encoded($href);
|
---|
933 | $href = &unicode::filename_to_url($href);
|
---|
934 |
|
---|
935 | &ghtml::urlsafe ($href);
|
---|
936 |
|
---|
937 | if ((defined $ENV{"DEBUG_UNICODE"}) && ($ENV{"DEBUG_UNICODE"})) {
|
---|
938 | print STDERR "******DEBUG: href=$href\n";
|
---|
939 | }
|
---|
940 |
|
---|
941 | #TODO here
|
---|
942 | # if ($rl ==1) {
|
---|
943 | # have a relative link, we need to do URL encoding etc so it matches what has happened for that file
|
---|
944 | #$href = &util::rename_file($href, $self->{'file_rename_method'});
|
---|
945 | # $href = &unicode::raw_filename_to_url_encoded($href);
|
---|
946 | # then, this might be url encoded, so we replace % with %25
|
---|
947 | # $href = &unicode::filename_to_url($href);
|
---|
948 | # print STDERR "DEBUG: url encoded href = $href\n";
|
---|
949 | # }
|
---|
950 |
|
---|
951 | return $front . "_httpextlink_&rl=" . $rl . "&href=" . $href . $hash_part . $back;
|
---|
952 | } else {
|
---|
953 | # link is to some other type of file (e.g., an image) so we'll
|
---|
954 | # need to associate that file
|
---|
955 | return $front . $self->add_file ($href, $rl, $hash_part, $base_dir, $doc_obj, $section) . $back;
|
---|
956 | }
|
---|
957 | }
|
---|
958 |
|
---|
959 | sub retrieve_css_associated_files {
|
---|
960 | my $self = shift (@_);
|
---|
961 | my ($css_filename) = @_;
|
---|
962 |
|
---|
963 | my $css_filename_dirname = &File::Basename::dirname($css_filename);
|
---|
964 |
|
---|
965 | # The following file reading section is a candidate to use FileUtils::readUTF8File()
|
---|
966 | # in place of calling sysread() directly. But only if we can reason we'd be working with UTF8
|
---|
967 | open (CSSFILE, $css_filename) || return;
|
---|
968 | sysread (CSSFILE, my $file_string, -s CSSFILE);
|
---|
969 |
|
---|
970 | $self->acquire_css_associated_files_from_text_block($file_string, $css_filename_dirname) unless !defined $file_string;
|
---|
971 |
|
---|
972 | close CSSFILE;
|
---|
973 | }
|
---|
974 |
|
---|
975 | sub acquire_css_associated_files_from_text_block {
|
---|
976 | my $self = shift (@_);
|
---|
977 | my ($text, $css_filename_dirname) = @_;
|
---|
978 |
|
---|
979 | my @image_urls = ($text =~ m/background-image:\s*url[^;]*;/sg);
|
---|
980 | foreach my $img_url (@image_urls)
|
---|
981 | {
|
---|
982 | $img_url =~ s/^.*url.*\((.*)\).*$/$1/;
|
---|
983 | $img_url =~ s/^\s*"?([^"]*)"?\s*$/$1/;
|
---|
984 |
|
---|
985 | $self->{'css_assoc_files'}->{&FileUtils::filenameConcatenate($css_filename_dirname, $img_url)} = $img_url;
|
---|
986 | }
|
---|
987 | }
|
---|
988 |
|
---|
989 | sub acquire_css_associated_files {
|
---|
990 | my $self = shift(@_);
|
---|
991 |
|
---|
992 | my ($doc_obj, $section) = @_;
|
---|
993 |
|
---|
994 | foreach my $image_filename (keys %{$self->{'css_assoc_files'}})
|
---|
995 | {
|
---|
996 | $doc_obj->associate_file($image_filename, $self->{'css_assoc_files'}->{$image_filename}, undef, $section);
|
---|
997 | }
|
---|
998 | }
|
---|
999 |
|
---|
1000 | sub add_file {
|
---|
1001 | my $self = shift (@_);
|
---|
1002 | my ($href, $rl, $hash_part, $base_dir, $doc_obj, $section) = @_;
|
---|
1003 | my ($newname);
|
---|
1004 |
|
---|
1005 | my $filename = $href;
|
---|
1006 | if ($base_dir eq "") {
|
---|
1007 | if ($ENV{'GSDLOS'} =~ m/^windows$/i) {
|
---|
1008 | # remove http://
|
---|
1009 | $filename =~ s/^[^:]*:\/\///;
|
---|
1010 | }
|
---|
1011 | else {
|
---|
1012 | # remove http:/ thereby leaving one slash at the start as
|
---|
1013 | # part of full pathname
|
---|
1014 | $filename =~ s/^[^:]*:\///;
|
---|
1015 | }
|
---|
1016 | }
|
---|
1017 | else {
|
---|
1018 | # remove http://
|
---|
1019 | $filename =~ s/^[^:]*:\/\///;
|
---|
1020 | }
|
---|
1021 |
|
---|
1022 | if ($ENV{'GSDLOS'} =~ m/^windows$/i) {
|
---|
1023 | $filename =~ s@\/@\\@g;
|
---|
1024 | }
|
---|
1025 |
|
---|
1026 | $filename = &FileUtils::filenameConcatenate($base_dir, $filename);
|
---|
1027 |
|
---|
1028 | if (($self->{'use_realistic_book'}) || ($self->{'old_style_HDL'})) {
|
---|
1029 | # we are processing a tidytmp file - want paths to be in import
|
---|
1030 | $filename =~ s/([\\\/])tidytmp([\\\/])/$1import$2/;
|
---|
1031 | }
|
---|
1032 |
|
---|
1033 | # Replace %XX's in URL with decoded value if required. Note that the
|
---|
1034 | # filename may include the %XX in some situations. If the *original*
|
---|
1035 | # file's name was in URL encoding, the following method will not decode
|
---|
1036 | # it.
|
---|
1037 | my $unicode_filename = $filename;
|
---|
1038 | my $opt_decode_unicode_filename = $self->opt_url_decode($unicode_filename);
|
---|
1039 |
|
---|
1040 | # wvWare can generate <img src="StrangeNoGraphicData"> tags, but with no
|
---|
1041 | # (it seems) accompanying file
|
---|
1042 | if ($opt_decode_unicode_filename =~ m/StrangeNoGraphicData$/) { return ""; }
|
---|
1043 |
|
---|
1044 | my $content_encoding= $self->{'content_encoding'} || "utf8";
|
---|
1045 |
|
---|
1046 | if ($ENV{'GSDLOS'} =~ /^(linux|solaris)$/i) {
|
---|
1047 | # The filenames that come through the HTML file have been decoded
|
---|
1048 | # into Unicode aware Perl strings. Need to convert them back
|
---|
1049 | # to their initial raw-byte encoding to match the file that
|
---|
1050 | # exists on the file system
|
---|
1051 | $filename = encode($content_encoding, $opt_decode_unicode_filename);
|
---|
1052 |
|
---|
1053 | }
|
---|
1054 | elsif ($ENV{'GSDLOS'} =~ /^darwin$/i) {
|
---|
1055 | # HFS+ is UTF8 with decompostion
|
---|
1056 | $filename = encode($content_encoding, $opt_decode_unicode_filename);
|
---|
1057 | $filename = normalize('D', $filename); # Normalization Form D (decomposition)
|
---|
1058 |
|
---|
1059 | }
|
---|
1060 | elsif ($ENV{'GSDLOS'} =~ /^windows$/i) {
|
---|
1061 | my $long_filename = Win32::GetLongPathName($opt_decode_unicode_filename);
|
---|
1062 |
|
---|
1063 | if (defined $long_filename) {
|
---|
1064 | my $short_filename = Win32::GetLongPathName($long_filename);
|
---|
1065 | $filename = $short_filename;
|
---|
1066 | }
|
---|
1067 | # else {
|
---|
1068 | # print STDERR "***** failed to map href to real file:\n";
|
---|
1069 | # print STDERR "****** $href -> $opt_decode_unicode_filename\n";
|
---|
1070 | # }
|
---|
1071 | }
|
---|
1072 | else {
|
---|
1073 | my $outhandle = $self->{'outhandle'};
|
---|
1074 | print $outhandle "Warning: Unrecognized operating system ", $ENV{'GSDLOS'}, "\n";
|
---|
1075 | print $outhandle " in file system encoding of href: $href\n";
|
---|
1076 | print $outhandle " No character encoding done.\n";
|
---|
1077 | }
|
---|
1078 |
|
---|
1079 |
|
---|
1080 | # some special processing if the intended filename was converted to utf8, but
|
---|
1081 | # the actual file still needs to be renamed
|
---|
1082 | if (!&FileUtils::fileExists($filename)) {
|
---|
1083 | # try the original filename stored in map
|
---|
1084 | if ((defined $ENV{"DEBUG_UNICODE"}) && ($ENV{"DEBUG_UNICODE"})) {
|
---|
1085 | print STDERR "******!! orig filename did not exist: $filename\n";
|
---|
1086 | }
|
---|
1087 |
|
---|
1088 | ## print STDERR "**** trying to look up unicode_filename: $unicode_filename\n";
|
---|
1089 |
|
---|
1090 | my $original_filename = $self->{'unicode_to_original_filename'}->{$unicode_filename};
|
---|
1091 |
|
---|
1092 | if ((defined $ENV{"DEBUG_UNICODE"}) && ($ENV{"DEBUG_UNICODE"})) {
|
---|
1093 | print STDERR "****** From lookup unicode_filename, now trying for: $original_filename\n";
|
---|
1094 | }
|
---|
1095 |
|
---|
1096 | if (defined $original_filename && -e $original_filename) {
|
---|
1097 | if ((defined $ENV{"DEBUG_UNICODE"}) && ($ENV{"DEBUG_UNICODE"})) {
|
---|
1098 | print STDERR "****** Found match!\n";
|
---|
1099 | }
|
---|
1100 | $filename = $original_filename;
|
---|
1101 | }
|
---|
1102 | }
|
---|
1103 |
|
---|
1104 | my ($ext) = $filename =~ m/(\.[^\.]*)$/;
|
---|
1105 |
|
---|
1106 | if ($rl == 0) {
|
---|
1107 | if ((!defined $ext) || ($ext !~ m/$self->{'assoc_files'}/)) {
|
---|
1108 | return "_httpextlink_&rl=0&el=prompt&href=" . $href . $hash_part;
|
---|
1109 | }
|
---|
1110 | else {
|
---|
1111 | return "_httpextlink_&rl=0&el=direct&href=" . $href . $hash_part;
|
---|
1112 | }
|
---|
1113 | }
|
---|
1114 |
|
---|
1115 | if ((!defined $ext) || ($ext !~ m/$self->{'assoc_files'}/)) {
|
---|
1116 | return "_httpextlink_&rl=" . $rl . "&href=" . $href . $hash_part;
|
---|
1117 | }
|
---|
1118 | # add the original image file as a source file
|
---|
1119 | if (!$self->{'processing_tmp_files'} ) {
|
---|
1120 | $doc_obj->associate_source_file($filename);
|
---|
1121 | }
|
---|
1122 | if ($self->{'rename_assoc_files'}) {
|
---|
1123 | if (defined $self->{'aux_files'}->{$href}) {
|
---|
1124 | $newname = $self->{'aux_files'}->{$href}->{'dir_num'} . "/" .
|
---|
1125 | $self->{'aux_files'}->{$href}->{'file_num'} . $ext;
|
---|
1126 | } else {
|
---|
1127 | $newname = $self->{'dir_num'} . "/" . $self->{'file_num'} . $ext;
|
---|
1128 | $self->{'aux_files'}->{$href} = {'dir_num' => $self->{'dir_num'}, 'file_num' => $self->{'file_num'}};
|
---|
1129 | $self->inc_filecount ();
|
---|
1130 | }
|
---|
1131 | $doc_obj->associate_file($filename, $newname, undef, $section);
|
---|
1132 | return "_httpdocimg_/$newname";
|
---|
1133 | } else {
|
---|
1134 | if(&unicode::is_url_encoded($unicode_filename)) {
|
---|
1135 | # use the possibly-decoded filename instead to avoid double URL encoding
|
---|
1136 | ($newname) = $filename =~ m/([^\/\\]*)$/;
|
---|
1137 | } else {
|
---|
1138 | ($newname) = $unicode_filename =~ m/([^\/\\]*)$/;
|
---|
1139 | }
|
---|
1140 |
|
---|
1141 | # Make sure this name uses only ASCII characters.
|
---|
1142 | # We use either base64 or URL encoding, as these preserve original encoding
|
---|
1143 | $newname = &util::rename_file($newname, $self->{'file_rename_method'});
|
---|
1144 |
|
---|
1145 | ### print STDERR "***** associating $filename (raw-byte/utf8)-> $newname\n";
|
---|
1146 | $doc_obj->associate_file($filename, $newname, undef, $section);
|
---|
1147 |
|
---|
1148 | # Since the generated image will be URL-encoded to avoid file-system/browser mess-ups
|
---|
1149 | # of filenames, URL-encode the additional percent signs of the URL-encoded filename
|
---|
1150 | my $newname_url = $newname;
|
---|
1151 | $newname_url = &unicode::filename_to_url($newname_url);
|
---|
1152 | return "_httpdocimg_/$newname_url";
|
---|
1153 | }
|
---|
1154 | }
|
---|
1155 |
|
---|
1156 | sub replace_section_links {
|
---|
1157 | my $self = shift(@_);
|
---|
1158 | my ($doc_obj) = @_;
|
---|
1159 | my %anchors;
|
---|
1160 | my $top_section = $doc_obj->get_top_section();
|
---|
1161 | my $thissection = $doc_obj->get_next_section($top_section);
|
---|
1162 | while ( defined $thissection ) {
|
---|
1163 | my $text = $doc_obj->get_text($thissection);
|
---|
1164 | while ( $text =~ /(?:(?:id|name)\s*=\s*[\'\"])([^\'\"]+)/gi ) {
|
---|
1165 | $anchors{$1} = $thissection;
|
---|
1166 | }
|
---|
1167 | $thissection = $doc_obj->get_next_section($thissection);
|
---|
1168 | }
|
---|
1169 | $thissection = $top_section;
|
---|
1170 | while (defined $thissection) {
|
---|
1171 | my $text = $doc_obj->get_text($thissection);
|
---|
1172 | $text =~ s/(href\s*=\s*[\"\'])(_httpsamepagelink_#)([^\'\"]+)/$self->replace_link_to_anchor($1,$2,$3,$thissection,$anchors{$3})/ige;
|
---|
1173 | $doc_obj->delete_text( $thissection);
|
---|
1174 | $doc_obj->add_utf8_text( $thissection, $text );
|
---|
1175 | $thissection = $doc_obj->get_next_section ($thissection);
|
---|
1176 | }
|
---|
1177 | }
|
---|
1178 | sub replace_link_to_anchor {
|
---|
1179 | my $self = shift(@_);
|
---|
1180 | my ($href_part,$old_link,$identifier,$current_section,$target_section) = @_;
|
---|
1181 | if (length $target_section){
|
---|
1182 | return $href_part . "javascript:goToAnchor(\'" . $target_section . "\',\'" . $identifier . "\');" ;
|
---|
1183 | }
|
---|
1184 | return $href_part . $old_link . $identifier ;
|
---|
1185 | }
|
---|
1186 |
|
---|
1187 | sub format_link {
|
---|
1188 | my $self = shift (@_);
|
---|
1189 | my ($link, $base_dir, $file) = @_;
|
---|
1190 |
|
---|
1191 | # strip off hash part, e.g. #foo, but watch out for any entities, e.g. α
|
---|
1192 | my ($before_hash, $hash_part) = $link =~ m/^(.*?[^&])(\#.*)?$/;
|
---|
1193 |
|
---|
1194 | $hash_part = "" if !defined $hash_part;
|
---|
1195 | if (!defined $before_hash || $before_hash !~ m/[\w\.\/]/) {
|
---|
1196 | my $outhandle = $self->{'outhandle'};
|
---|
1197 | print $outhandle "HTMLPlugin: ERROR - badly formatted tag ignored ($link)\n"
|
---|
1198 | if $self->{'verbosity'};
|
---|
1199 | return ($link, "", 0);
|
---|
1200 | }
|
---|
1201 |
|
---|
1202 | # my $dirname;
|
---|
1203 | if ($before_hash =~ s@^((?:http|https|ftp|file|mms)://)@@i) {
|
---|
1204 | my $type = $1;
|
---|
1205 | my $before_hash_file = $before_hash;
|
---|
1206 |
|
---|
1207 | if ($link =~ m/^(http|ftp):/i) {
|
---|
1208 |
|
---|
1209 | # Turn url (using /) into file name (possibly using \ on windows)
|
---|
1210 | my @http_dir_split = split('/', $before_hash_file);
|
---|
1211 | $before_hash_file = &FileUtils::filenameConcatenate(@http_dir_split);
|
---|
1212 | }
|
---|
1213 |
|
---|
1214 | # want to maintain two version of "before_hash": one representing the URL, the other using filesystem specific directory separator
|
---|
1215 | $before_hash_file = $self->eval_dir_dots($before_hash_file);
|
---|
1216 | my $before_hash_url = $before_hash_file;
|
---|
1217 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
|
---|
1218 | $before_hash_url =~ s@\\@\/@g;
|
---|
1219 | }
|
---|
1220 |
|
---|
1221 | ######## TODO need to check this for encoding stufff
|
---|
1222 | my $linkfilename = &FileUtils::filenameConcatenate($base_dir, $before_hash_file);
|
---|
1223 | print STDERR "checking for existence whether relative link or not $linkfilename\n";
|
---|
1224 | my $rl = 0;
|
---|
1225 | $rl = 1 if (-e $linkfilename);
|
---|
1226 | if (-e $linkfilename) {
|
---|
1227 |
|
---|
1228 | print STDERR "DOES exist $linkfilename\n";
|
---|
1229 | } else {
|
---|
1230 | print STDERR "DOESN'T exist $linkfilename\n";
|
---|
1231 | }
|
---|
1232 | # make sure there's a slash on the end if it's a directory
|
---|
1233 | if ($before_hash_url !~ m/\/$/) {
|
---|
1234 | $before_hash_url .= "/" if (-d $linkfilename);
|
---|
1235 | }
|
---|
1236 | return ($type . $before_hash_url, $hash_part, $rl);
|
---|
1237 |
|
---|
1238 | } elsif ($link !~ m/^(mailto|news|gopher|nntp|telnet|javascript):/i && $link !~ m/^\//) {
|
---|
1239 |
|
---|
1240 | #### TODO whst is this test doing???
|
---|
1241 | if ($before_hash =~ s@^/@@ || $before_hash =~ m/\\/) {
|
---|
1242 |
|
---|
1243 | # the first directory will be the domain name if file_is_url
|
---|
1244 | # to generate archives, otherwise we'll assume all files are
|
---|
1245 | # from the same site and base_dir is the root
|
---|
1246 |
|
---|
1247 | if ($self->{'file_is_url'}) {
|
---|
1248 | my @dirs = split /[\/\\]/, $file;
|
---|
1249 | my $domname = shift (@dirs);
|
---|
1250 | $before_hash = &FileUtils::filenameConcatenate($domname, $before_hash);
|
---|
1251 | $before_hash =~ s@\\@/@g; # for windows
|
---|
1252 | }
|
---|
1253 | else
|
---|
1254 | {
|
---|
1255 | # see if link shares directory with source document
|
---|
1256 | # => turn into relative link if this is so!
|
---|
1257 |
|
---|
1258 | if ($ENV{'GSDLOS'} =~ m/^windows/i) {
|
---|
1259 | # too difficult doing a pattern match with embedded '\'s...
|
---|
1260 | my $win_before_hash=$before_hash;
|
---|
1261 | $win_before_hash =~ s@(\\)+@/@g;
|
---|
1262 | # $base_dir is already similarly "converted" on windows.
|
---|
1263 | if ($win_before_hash =~ s@^$base_dir/@@o) {
|
---|
1264 | # if this is true, we removed a prefix
|
---|
1265 | $before_hash=$win_before_hash;
|
---|
1266 | }
|
---|
1267 | }
|
---|
1268 | else {
|
---|
1269 | # before_hash has lost leading slash by this point,
|
---|
1270 | # -> add back in prior to substitution with $base_dir
|
---|
1271 | $before_hash = "/$before_hash";
|
---|
1272 |
|
---|
1273 | $before_hash = &FileUtils::filenameConcatenate("",$before_hash);
|
---|
1274 | $before_hash =~ s@^$base_dir/@@;
|
---|
1275 | }
|
---|
1276 | }
|
---|
1277 | } else {
|
---|
1278 |
|
---|
1279 | # Turn relative file path into full path (inside import dir)
|
---|
1280 | my $dirname = &File::Basename::dirname($file);
|
---|
1281 |
|
---|
1282 | # we want to add dirname (which is raw filesystem path) onto $before_hash, (which is perl unicode aware string). Convert dirname to perl string
|
---|
1283 |
|
---|
1284 | my $unicode_dirname ="";
|
---|
1285 | # we need to turn raw filesystem filename into perl unicode aware string
|
---|
1286 | my $filename_encoding = $self->guess_filesystem_encoding();
|
---|
1287 |
|
---|
1288 | # copied this from set_Source_metadata in BaseImporter
|
---|
1289 | if ((defined $filename_encoding) && ($filename_encoding ne "ascii")) {
|
---|
1290 | # Use filename_encoding to map raw filename to a Perl unicode-aware string
|
---|
1291 | $unicode_dirname = decode($filename_encoding,$dirname);
|
---|
1292 | }
|
---|
1293 | else {
|
---|
1294 | # otherwise generate %xx encoded version of filename for char > 127
|
---|
1295 | $unicode_dirname = &unicode::raw_filename_to_url_encoded($dirname);
|
---|
1296 | }
|
---|
1297 | $before_hash = &FileUtils::filenameConcatenate($unicode_dirname, $before_hash);
|
---|
1298 | $before_hash = $self->eval_dir_dots($before_hash);
|
---|
1299 | $before_hash =~ s@\\@/@g; # for windows
|
---|
1300 | }
|
---|
1301 |
|
---|
1302 | my $linkfilename = &FileUtils::filenameConcatenate($base_dir, $before_hash);
|
---|
1303 |
|
---|
1304 | # make sure there's a slash on the end if it's a directory
|
---|
1305 | if ($before_hash !~ m/\/$/) {
|
---|
1306 | $before_hash .= "/" if (-d $linkfilename);
|
---|
1307 | }
|
---|
1308 | return ("http://" . $before_hash, $hash_part, 1);
|
---|
1309 | } else {
|
---|
1310 | # mailto, news, nntp, telnet, javascript or gopher link
|
---|
1311 | return ($before_hash, "", 0);
|
---|
1312 | }
|
---|
1313 | }
|
---|
1314 |
|
---|
1315 | sub extract_first_NNNN_characters {
|
---|
1316 | my $self = shift (@_);
|
---|
1317 | my ($textref, $doc_obj, $thissection) = @_;
|
---|
1318 |
|
---|
1319 | foreach my $size (split /,/, $self->{'first'}) {
|
---|
1320 | my $tmptext = $$textref;
|
---|
1321 | # skip to the body
|
---|
1322 | $tmptext =~ s/.*<body[^>]*>//i;
|
---|
1323 | # remove javascript
|
---|
1324 | $tmptext =~ s@<script.*?</script>@ @sig;
|
---|
1325 | $tmptext =~ s/<[^>]*>/ /g;
|
---|
1326 | $tmptext =~ s/ / /g;
|
---|
1327 | $tmptext =~ s/^\s+//;
|
---|
1328 | $tmptext =~ s/\s+$//;
|
---|
1329 | $tmptext =~ s/\s+/ /gs;
|
---|
1330 | $tmptext = &unicode::substr ($tmptext, 0, $size);
|
---|
1331 | $tmptext =~ s/\s\S*$/…/; # adds an ellipse (...)
|
---|
1332 | $doc_obj->add_utf8_metadata ($thissection, "First$size", $tmptext);
|
---|
1333 | }
|
---|
1334 | }
|
---|
1335 |
|
---|
1336 |
|
---|
1337 | sub extract_metadata {
|
---|
1338 | my $self = shift (@_);
|
---|
1339 | my ($textref, $metadata, $doc_obj, $section) = @_;
|
---|
1340 | my $outhandle = $self->{'outhandle'};
|
---|
1341 | # if we don't want metadata, we may as well not be here ...
|
---|
1342 | return if (!defined $self->{'metadata_fields'});
|
---|
1343 | my $separator = $self->{'metadata_field_separator'};
|
---|
1344 | if ($separator eq "") {
|
---|
1345 | undef $separator;
|
---|
1346 | }
|
---|
1347 |
|
---|
1348 | # metadata fields to extract/save. 'key' is the (lowercase) name of the
|
---|
1349 | # html meta, 'value' is the metadata name for greenstone to use
|
---|
1350 | my %find_fields = ();
|
---|
1351 |
|
---|
1352 | my %creator_fields = (); # short-cut for lookups
|
---|
1353 |
|
---|
1354 |
|
---|
1355 | foreach my $field (split /,/, $self->{'metadata_fields'}) {
|
---|
1356 | $field =~ s/^\s+//; # remove leading whitespace
|
---|
1357 | $field =~ s/\s+$//; # remove trailing whitespace
|
---|
1358 |
|
---|
1359 | # support tag<tagname>
|
---|
1360 | if ($field =~ m/^(.*?)\s*<(.*?)>$/) {
|
---|
1361 | # "$2" is the user's preferred gs metadata name
|
---|
1362 | $find_fields{lc($1)}=$2; # lc = lowercase
|
---|
1363 | } else { # no <tagname> for mapping
|
---|
1364 | # "$field" is the user's preferred gs metadata name
|
---|
1365 | $find_fields{lc($field)}=$field; # lc = lowercase
|
---|
1366 | }
|
---|
1367 | }
|
---|
1368 |
|
---|
1369 | if (defined $self->{'hunt_creator_metadata'} &&
|
---|
1370 | $self->{'hunt_creator_metadata'} == 1 ) {
|
---|
1371 | my @extra_fields =
|
---|
1372 | (
|
---|
1373 | 'author',
|
---|
1374 | 'author.email',
|
---|
1375 | 'creator',
|
---|
1376 | 'dc.creator',
|
---|
1377 | 'dc.creator.corporatename',
|
---|
1378 | );
|
---|
1379 |
|
---|
1380 | # add the creator_metadata fields to search for
|
---|
1381 | foreach my $field (@extra_fields) {
|
---|
1382 | $creator_fields{$field}=0; # add to lookup hash
|
---|
1383 | }
|
---|
1384 | }
|
---|
1385 |
|
---|
1386 |
|
---|
1387 | # find the header in the html file, which has the meta tags
|
---|
1388 | $$textref =~ m@<head>(.*?)</head>@si;
|
---|
1389 |
|
---|
1390 | my $html_header=$1;
|
---|
1391 |
|
---|
1392 | # go through every <meta... tag defined in the html and see if it is
|
---|
1393 | # one of the tags we want to match.
|
---|
1394 |
|
---|
1395 | # special case for title - we want to remember if its been found
|
---|
1396 | my $found_title = 0;
|
---|
1397 | # this assumes that ">" won't appear. (I don't think it's allowed to...)
|
---|
1398 | $html_header =~ m/^/; # match the start of the string, for \G assertion
|
---|
1399 |
|
---|
1400 | while ($html_header =~ m/\G.*?<meta(.*?)>/sig) {
|
---|
1401 | my $metatag=$1;
|
---|
1402 | my ($tag, $value);
|
---|
1403 |
|
---|
1404 | # find the tag name
|
---|
1405 | $metatag =~ m/(?:name|http-equiv)\s*=\s*([\"\'])?(.*?)\1/is;
|
---|
1406 | $tag=$2;
|
---|
1407 | # in case they're not using " or ', but they should...
|
---|
1408 | if (! $tag) {
|
---|
1409 | $metatag =~ m/(?:name|http-equiv)\s*=\s*([^\s\>]+)/is;
|
---|
1410 | $tag=$1;
|
---|
1411 | }
|
---|
1412 |
|
---|
1413 | if (!defined $tag) {
|
---|
1414 | print $outhandle "HTMLPlugin: can't find NAME in \"$metatag\"\n";
|
---|
1415 | next;
|
---|
1416 | }
|
---|
1417 |
|
---|
1418 | # don't need to assign this field if it was passed in from a previous
|
---|
1419 | # (recursive) plugin
|
---|
1420 | if (defined $metadata->{$tag}) {next}
|
---|
1421 |
|
---|
1422 | # find the tag content
|
---|
1423 | $metatag =~ m/content\s*=\s*([\"\'])?(.*?)\1/is;
|
---|
1424 | $value=$2;
|
---|
1425 |
|
---|
1426 | # The following code assigns the metaname to value if value is
|
---|
1427 | # empty. Why would we do this?
|
---|
1428 | #if (! $value) {
|
---|
1429 | # $metatag =~ m/(?:name|http-equiv)\s*=\s*([^\s\>]+)/is;
|
---|
1430 | # $value=$1;
|
---|
1431 | #}
|
---|
1432 | if (!defined $value || $value eq "") {
|
---|
1433 | print $outhandle "HTMLPlugin: can't find VALUE in <meta $metatag >\n" if ($self->{'verbosity'} > 2);
|
---|
1434 | next;
|
---|
1435 | }
|
---|
1436 |
|
---|
1437 | # clean up and add
|
---|
1438 | $value =~ s/\s+/ /gs;
|
---|
1439 | chomp($value); # remove trailing \n, if any
|
---|
1440 | if (exists $creator_fields{lc($tag)}) {
|
---|
1441 | # map this value onto greenstone's "Creator" metadata
|
---|
1442 | $tag='Creator';
|
---|
1443 | } elsif (!exists $find_fields{lc($tag)}) {
|
---|
1444 | next; # don't want this tag
|
---|
1445 | } else {
|
---|
1446 | # get the user's preferred capitalisation
|
---|
1447 | $tag = $find_fields{lc($tag)};
|
---|
1448 | }
|
---|
1449 | if (lc($tag) eq "title") {
|
---|
1450 | $found_title = 1;
|
---|
1451 | }
|
---|
1452 |
|
---|
1453 | if ($self->{'verbosity'} > 2) {
|
---|
1454 | print $outhandle " extracted \"$tag\" metadata \"$value\"\n";
|
---|
1455 | }
|
---|
1456 |
|
---|
1457 | if ($tag =~ /\./) {
|
---|
1458 | # there is a . so has a namespace, add ex.
|
---|
1459 | $tag = "ex.$tag";
|
---|
1460 | }
|
---|
1461 | if (defined $separator) {
|
---|
1462 | my @values = split($separator, $value);
|
---|
1463 | foreach my $v (@values) {
|
---|
1464 | $doc_obj->add_utf8_metadata($section, $tag, $v) if $v =~ /\S/;
|
---|
1465 | }
|
---|
1466 | }
|
---|
1467 | else {
|
---|
1468 | $doc_obj->add_utf8_metadata($section, $tag, $value);
|
---|
1469 | }
|
---|
1470 | }
|
---|
1471 |
|
---|
1472 | # TITLE: extract the document title
|
---|
1473 | if (exists $find_fields{'title'} && !$found_title) {
|
---|
1474 | # we want a title, and didn't find one in the meta tags
|
---|
1475 | # see if there's a <title> tag
|
---|
1476 | my $title;
|
---|
1477 | my $from = ""; # for debugging output only
|
---|
1478 | if ($html_header =~ m/<title[^>]*>([^<]+)<\/title[^>]*>/is) {
|
---|
1479 | $title = $1;
|
---|
1480 | $from = "<title> tags";
|
---|
1481 | }
|
---|
1482 |
|
---|
1483 | if (!defined $title) {
|
---|
1484 | $from = "first 100 chars";
|
---|
1485 | # if no title use first 100 or so characters
|
---|
1486 | $title = $$textref;
|
---|
1487 | $title =~ s/^\xFE\xFF//; # Remove unicode byte order mark
|
---|
1488 | $title =~ s/^.*?<body>//si;
|
---|
1489 | # ignore javascript!
|
---|
1490 | $title =~ s@<script.*?</script>@ @sig;
|
---|
1491 | $title =~ s/<\/([^>]+)><\1>//g; # (eg) </b><b> - no space
|
---|
1492 | $title =~ s/<[^>]*>/ /g; # remove all HTML tags
|
---|
1493 | $title =~ s@\r@@g; # remove Windows carriage returns to ensure that titles of pdftohtml docs are consistent (the same 100 chars) across windows and linux
|
---|
1494 | $title = substr ($title, 0, 100);
|
---|
1495 | $title =~ s/\s\S*$/.../;
|
---|
1496 | }
|
---|
1497 | $title =~ s/<[^>]*>/ /g; # remove html tags
|
---|
1498 | $title =~ s/ / /g;
|
---|
1499 | $title =~ s/(?: |\xc2\xa0)/ /g; # utf-8 for nbsp...
|
---|
1500 | $title =~ s/\s+/ /gs; # collapse multiple spaces
|
---|
1501 | $title =~ s/^\s*//; # remove leading spaces
|
---|
1502 | $title =~ s/\s*$//; # remove trailing spaces
|
---|
1503 |
|
---|
1504 | $title =~ s/^$self->{'title_sub'}// if ($self->{'title_sub'});
|
---|
1505 | $title =~ s/^\s+//s; # in case title_sub introduced any...
|
---|
1506 | $doc_obj->add_utf8_metadata ($section, "Title", $title);
|
---|
1507 | print $outhandle " extracted Title metadata \"$title\" from $from\n"
|
---|
1508 | if ($self->{'verbosity'} > 2);
|
---|
1509 | }
|
---|
1510 |
|
---|
1511 | # add FileFormat metadata
|
---|
1512 | $doc_obj->add_metadata($section,"FileFormat", "HTML");
|
---|
1513 |
|
---|
1514 | # Special, for metadata names such as tagH1 - extracts
|
---|
1515 | # the text between the first <H1> and </H1> tags into "H1" metadata.
|
---|
1516 |
|
---|
1517 | foreach my $field (keys %find_fields) {
|
---|
1518 | if ($field !~ m/^tag([a-z0-9]+)$/i) {next}
|
---|
1519 | my $tag = $1;
|
---|
1520 | if ($$textref =~ m@<$tag[^>]*>(.*?)</$tag[^>]*>@g) {
|
---|
1521 | my $content = $1;
|
---|
1522 | $content =~ s/ / /g;
|
---|
1523 | $content =~ s/<[^>]*>/ /g;
|
---|
1524 | $content =~ s/^\s+//;
|
---|
1525 | $content =~ s/\s+$//;
|
---|
1526 | $content =~ s/\s+/ /gs;
|
---|
1527 | if ($content) {
|
---|
1528 | $tag=$find_fields{"tag$tag"}; # get the user's capitalisation
|
---|
1529 | $tag =~ s/^tag//i;
|
---|
1530 | $doc_obj->add_utf8_metadata ($section, $tag, $content);
|
---|
1531 | print $outhandle " extracted \"$tag\" metadata \"$content\"\n"
|
---|
1532 | if ($self->{'verbosity'} > 2);
|
---|
1533 | }
|
---|
1534 | }
|
---|
1535 | }
|
---|
1536 | }
|
---|
1537 |
|
---|
1538 |
|
---|
1539 | # evaluate any "../" to next directory up
|
---|
1540 | # evaluate any "./" as here
|
---|
1541 | sub eval_dir_dots {
|
---|
1542 | my $self = shift (@_);
|
---|
1543 | my ($filename) = @_;
|
---|
1544 | my $dirsep_os = &util::get_os_dirsep();
|
---|
1545 | my @dirsep = split(/$dirsep_os/,$filename);
|
---|
1546 |
|
---|
1547 | my @eval_dirs = ();
|
---|
1548 | foreach my $d (@dirsep) {
|
---|
1549 | if ($d eq "..") {
|
---|
1550 | pop(@eval_dirs);
|
---|
1551 |
|
---|
1552 | } elsif ($d eq ".") {
|
---|
1553 | # do nothing!
|
---|
1554 |
|
---|
1555 | } else {
|
---|
1556 | push(@eval_dirs,$d);
|
---|
1557 | }
|
---|
1558 | }
|
---|
1559 |
|
---|
1560 | # Need to fiddle with number of elements in @eval_dirs if the
|
---|
1561 | # first one is the empty string. This is because of a
|
---|
1562 | # modification to FileUtils::filenameConcatenate that supresses the addition
|
---|
1563 | # of a leading '/' character (or \ if windows) (intended to help
|
---|
1564 | # filename cat with relative paths) if the first entry in the
|
---|
1565 | # array is the empty string. Making the array start with *two*
|
---|
1566 | # empty strings is a way to defeat this "smart" option.
|
---|
1567 | #
|
---|
1568 | if (scalar(@eval_dirs) > 0) {
|
---|
1569 | if ($eval_dirs[0] eq ""){
|
---|
1570 | unshift(@eval_dirs,"");
|
---|
1571 | }
|
---|
1572 | }
|
---|
1573 |
|
---|
1574 | my $evaluated_filename = (scalar @eval_dirs > 0) ? &FileUtils::filenameConcatenate(@eval_dirs) : "";
|
---|
1575 | return $evaluated_filename;
|
---|
1576 | }
|
---|
1577 |
|
---|
1578 | sub replace_usemap_links {
|
---|
1579 | my $self = shift (@_);
|
---|
1580 | my ($front, $link, $back) = @_;
|
---|
1581 |
|
---|
1582 | # remove quotes from link at start and end if necessary
|
---|
1583 | if ($link=~/^[\"\']/) {
|
---|
1584 | $link=~s/^[\"\']//;
|
---|
1585 | $link=~s/[\"\']$//;
|
---|
1586 | $front.='"';
|
---|
1587 | $back="\"$back";
|
---|
1588 | }
|
---|
1589 |
|
---|
1590 | $link =~ s/^\.\///;
|
---|
1591 | return $front . $link . $back;
|
---|
1592 | }
|
---|
1593 |
|
---|
1594 | sub inc_filecount {
|
---|
1595 | my $self = shift (@_);
|
---|
1596 |
|
---|
1597 | if ($self->{'file_num'} == 1000) {
|
---|
1598 | $self->{'dir_num'} ++;
|
---|
1599 | $self->{'file_num'} = 0;
|
---|
1600 | } else {
|
---|
1601 | $self->{'file_num'} ++;
|
---|
1602 | }
|
---|
1603 | }
|
---|
1604 |
|
---|
1605 |
|
---|
1606 | # Extend read_file so that strings like é are
|
---|
1607 | # converted to UTF8 internally.
|
---|
1608 | #
|
---|
1609 | # We don't convert < or > or & or " in case
|
---|
1610 | # they interfere with the GML files
|
---|
1611 |
|
---|
1612 | sub read_file {
|
---|
1613 | my $self = shift(@_);
|
---|
1614 | my ($filename, $encoding, $language, $textref) = @_;
|
---|
1615 |
|
---|
1616 | $self->SUPER::read_file($filename, $encoding, $language, $textref);
|
---|
1617 |
|
---|
1618 | # Convert entities to their Unicode code-point equivalents
|
---|
1619 | $$textref =~ s/&(lt|gt|amp|quot|nbsp);/&z$1;/go;
|
---|
1620 | $$textref =~ s/&([^;]+);/&ghtml::getcharequiv($1,1,1)/gseo;
|
---|
1621 | $$textref =~ s/&z(lt|gt|amp|quot|nbsp);/&$1;/go;
|
---|
1622 |
|
---|
1623 | }
|
---|
1624 |
|
---|
1625 | sub HB_read_html_file {
|
---|
1626 | my $self = shift (@_);
|
---|
1627 | my ($htmlfile, $text) = @_;
|
---|
1628 |
|
---|
1629 | # load in the file
|
---|
1630 | if (!open (FILE, $htmlfile)) {
|
---|
1631 | print STDERR "ERROR - could not open $htmlfile\n";
|
---|
1632 | return;
|
---|
1633 | }
|
---|
1634 |
|
---|
1635 | my $foundbody = 0;
|
---|
1636 | $self->HB_gettext (\$foundbody, $text, "FILE");
|
---|
1637 | close FILE;
|
---|
1638 |
|
---|
1639 | # just in case there was no <body> tag
|
---|
1640 | if (!$foundbody) {
|
---|
1641 | $foundbody = 1;
|
---|
1642 | open (FILE, $htmlfile) || return;
|
---|
1643 | $self->HB_gettext (\$foundbody, $text, "FILE");
|
---|
1644 | close FILE;
|
---|
1645 | }
|
---|
1646 | # text is in utf8
|
---|
1647 | }
|
---|
1648 |
|
---|
1649 | # converts the text to utf8, as ghtml does that for é etc.
|
---|
1650 | sub HB_gettext {
|
---|
1651 | my $self = shift (@_);
|
---|
1652 | my ($foundbody, $text, $handle) = @_;
|
---|
1653 |
|
---|
1654 | my $line = "";
|
---|
1655 | while (defined ($line = <$handle>)) {
|
---|
1656 | # look for body tag
|
---|
1657 | if (!$$foundbody) {
|
---|
1658 | if ($line =~ s/^.*<body[^>]*>//i) {
|
---|
1659 | $$foundbody = 1;
|
---|
1660 | } else {
|
---|
1661 | next;
|
---|
1662 | }
|
---|
1663 | }
|
---|
1664 |
|
---|
1665 | # check for symbol fonts
|
---|
1666 | if ($line =~ m/<font [^>]*?face\s*=\s*\"?(\w+)\"?/i) {
|
---|
1667 | my $font = $1;
|
---|
1668 | print STDERR "HBPlug::HB_gettext - warning removed font $font\n"
|
---|
1669 | if ($font !~ m/^arial$/i);
|
---|
1670 | }
|
---|
1671 |
|
---|
1672 | $$text .= $line;
|
---|
1673 | }
|
---|
1674 |
|
---|
1675 | if ($self->{'input_encoding'} eq "iso_8859_1") {
|
---|
1676 | # convert to utf-8
|
---|
1677 | $$text=&unicode::unicode2utf8(&unicode::convert2unicode("iso_8859_1", $text));
|
---|
1678 | }
|
---|
1679 | # convert any alphanumeric character entities to their utf-8
|
---|
1680 | # equivalent for indexing purposes
|
---|
1681 | #&ghtml::convertcharentities ($$text);
|
---|
1682 |
|
---|
1683 | $$text =~ s/\s+/ /g; # remove \n's
|
---|
1684 |
|
---|
1685 | # At this point $$text is a binary byte string
|
---|
1686 | # => turn it into a Unicode aware string, so full
|
---|
1687 | # Unicode aware pattern matching can be used.
|
---|
1688 | # For instance: 's/\x{0101}//g' or '[[:upper:]]'
|
---|
1689 | #
|
---|
1690 |
|
---|
1691 | $$text = decode("utf8",$$text);
|
---|
1692 | }
|
---|
1693 |
|
---|
1694 | sub HB_clean_section {
|
---|
1695 | my $self = shift (@_);
|
---|
1696 | my ($section) = @_;
|
---|
1697 |
|
---|
1698 | # remove tags without a starting tag from the section
|
---|
1699 | my ($tag, $tagstart);
|
---|
1700 | while ($section =~ m/<\/([^>]{1,10})>/) {
|
---|
1701 | $tag = $1;
|
---|
1702 | $tagstart = index($section, "<$tag");
|
---|
1703 | last if (($tagstart >= 0) && ($tagstart < index($section, "<\/$tag")));
|
---|
1704 | $section =~ s/<\/$tag>//;
|
---|
1705 | }
|
---|
1706 |
|
---|
1707 | # remove extra paragraph tags
|
---|
1708 | while ($section =~ s/<p\b[^>]*>\s*<p\b/<p/ig) {}
|
---|
1709 |
|
---|
1710 | # remove extra stuff at the end of the section
|
---|
1711 | while ($section =~ s/(<u>|<i>|<b>|<p\b[^>]*>| |\s)$//i) {}
|
---|
1712 |
|
---|
1713 | # add a newline at the beginning of each paragraph
|
---|
1714 | $section =~ s/(.)\s*<p\b/$1\n\n<p/gi;
|
---|
1715 |
|
---|
1716 | # add a newline every 80 characters at a word boundary
|
---|
1717 | # Note: this regular expression puts a line feed before
|
---|
1718 | # the last word in each section, even when it is not
|
---|
1719 | # needed.
|
---|
1720 | $section =~ s/(.{1,80})\s/$1\n/g;
|
---|
1721 |
|
---|
1722 | # fix up the image links
|
---|
1723 | $section =~ s/<img[^>]*?src=\"?([^\">]+)\"?[^>]*>/
|
---|
1724 | <center><img src=\"$1\" \/><\/center><br\/>/ig;
|
---|
1725 | $section =~ s/<<I>>\s*([^\.]+\.(png|jpg|gif))/
|
---|
1726 | <center><img src=\"$1\" \/><\/center><br\/>/ig;
|
---|
1727 |
|
---|
1728 | return $section;
|
---|
1729 | }
|
---|
1730 |
|
---|
1731 | # Will convert the oldHDL format to the new HDL format (using the Section tag)
|
---|
1732 | sub convert_to_newHDLformat
|
---|
1733 | {
|
---|
1734 | my $self = shift (@_);
|
---|
1735 | my ($file,$cnfile) = @_;
|
---|
1736 | my $input_filename = $file;
|
---|
1737 | my $tmp_filename = $cnfile;
|
---|
1738 |
|
---|
1739 | # write HTML tmp file with new HDL format
|
---|
1740 | open (PROD, ">$tmp_filename") || die("Error Writing to File: $tmp_filename $!");
|
---|
1741 |
|
---|
1742 | # read in the file and do basic html cleaning (removing header etc)
|
---|
1743 | my $html = "";
|
---|
1744 | $self->HB_read_html_file ($input_filename, \$html);
|
---|
1745 |
|
---|
1746 | # process the file one section at a time
|
---|
1747 | my $curtoclevel = 1;
|
---|
1748 | my $firstsection = 1;
|
---|
1749 | my $toclevel = 0;
|
---|
1750 | while (length ($html) > 0) {
|
---|
1751 | if ($html =~ s/^.*?(?:<p\b[^>]*>)?((<b>|<i>|<u>|\s)*)<<TOC(\d+)>>\s*(.*?)<p\b/<p/i) {
|
---|
1752 | $toclevel = $3;
|
---|
1753 | my $title = $4;
|
---|
1754 | my $sectiontext = "";
|
---|
1755 | if ($html =~ s/^(.*?)((?:<p\b[^>]*>)?((<b>|<i>|<u>|\s)*)<<TOC\d+>>)/$2/i) {
|
---|
1756 | $sectiontext = $1;
|
---|
1757 | } else {
|
---|
1758 | $sectiontext = $html;
|
---|
1759 | $html = "";
|
---|
1760 | }
|
---|
1761 |
|
---|
1762 | # remove tags and extra spaces from the title
|
---|
1763 | $title =~ s/<\/?[^>]+>//g;
|
---|
1764 | $title =~ s/^\s+|\s+$//g;
|
---|
1765 |
|
---|
1766 | # close any sections below the current level and
|
---|
1767 | # create a new section (special case for the firstsection)
|
---|
1768 | print PROD "<!--\n";
|
---|
1769 | while (($curtoclevel > $toclevel) ||
|
---|
1770 | (!$firstsection && $curtoclevel == $toclevel)) {
|
---|
1771 | $curtoclevel--;
|
---|
1772 | print PROD "</Section>\n";
|
---|
1773 | }
|
---|
1774 | if ($curtoclevel+1 < $toclevel) {
|
---|
1775 | print STDERR "WARNING - jump in toc levels in $input_filename " .
|
---|
1776 | "from $curtoclevel to $toclevel\n";
|
---|
1777 | }
|
---|
1778 | while ($curtoclevel < $toclevel) {
|
---|
1779 | $curtoclevel++;
|
---|
1780 | }
|
---|
1781 |
|
---|
1782 | if ($curtoclevel == 1) {
|
---|
1783 | # add the header tag
|
---|
1784 | print PROD "-->\n";
|
---|
1785 | print PROD "<HTML>\n<HEAD>\n<TITLE>$title</TITLE>\n</HEAD>\n<BODY>\n";
|
---|
1786 | print PROD "<!--\n";
|
---|
1787 | }
|
---|
1788 |
|
---|
1789 | print PROD "<Section>\n\t<Description>\n\t\t<Metadata name=\"Title\">$title</Metadata>\n\t</Description>\n";
|
---|
1790 |
|
---|
1791 | print PROD "-->\n";
|
---|
1792 |
|
---|
1793 | # clean up the section html
|
---|
1794 | $sectiontext = $self->HB_clean_section($sectiontext);
|
---|
1795 |
|
---|
1796 | print PROD "$sectiontext\n";
|
---|
1797 |
|
---|
1798 | } else {
|
---|
1799 | print STDERR "WARNING - leftover text\n" , $self->shorten($html),
|
---|
1800 | "\nin $input_filename\n";
|
---|
1801 | last;
|
---|
1802 | }
|
---|
1803 | $firstsection = 0;
|
---|
1804 | }
|
---|
1805 |
|
---|
1806 | print PROD "<!--\n";
|
---|
1807 | while ($curtoclevel > 0) {
|
---|
1808 | $curtoclevel--;
|
---|
1809 | print PROD "</Section>\n";
|
---|
1810 | }
|
---|
1811 | print PROD "-->\n";
|
---|
1812 |
|
---|
1813 | close (PROD) || die("Error Closing File: $tmp_filename $!");
|
---|
1814 |
|
---|
1815 | return $tmp_filename;
|
---|
1816 | }
|
---|
1817 |
|
---|
1818 | sub shorten {
|
---|
1819 | my $self = shift (@_);
|
---|
1820 | my ($text) = @_;
|
---|
1821 |
|
---|
1822 | return "\"$text\"" if (length($text) < 100);
|
---|
1823 |
|
---|
1824 | return "\"" . substr ($text, 0, 50) . "\" ... \"" .
|
---|
1825 | substr ($text, length($text)-50) . "\"";
|
---|
1826 | }
|
---|
1827 |
|
---|
1828 | sub convert_tidy_or_oldHDL_file
|
---|
1829 | {
|
---|
1830 | my $self = shift (@_);
|
---|
1831 | my ($file) = @_;
|
---|
1832 | my $input_filename = $file;
|
---|
1833 |
|
---|
1834 | if (-d $input_filename)
|
---|
1835 | {
|
---|
1836 | return $input_filename;
|
---|
1837 | }
|
---|
1838 |
|
---|
1839 | # get the input filename
|
---|
1840 | my ($tailname, $dirname, $suffix) = &File::Basename::fileparse($input_filename, "\\.[^\\.]+\$");
|
---|
1841 | my $base_dirname = $dirname;
|
---|
1842 | $suffix = lc($suffix);
|
---|
1843 |
|
---|
1844 | # derive tmp filename from input filename
|
---|
1845 | # Remove any white space from filename -- no risk of name collision, and
|
---|
1846 | # makes later conversion by utils simpler. Leave spaces in path...
|
---|
1847 | # tidy up the filename with space, dot, hyphen between
|
---|
1848 | $tailname =~ s/\s+//g;
|
---|
1849 | $tailname =~ s/\.+//g;
|
---|
1850 | $tailname =~ s/\-+//g;
|
---|
1851 | # convert to utf-8 otherwise we have problems with the doc.xml file
|
---|
1852 | # later on
|
---|
1853 | &unicode::ensure_utf8(\$tailname);
|
---|
1854 |
|
---|
1855 | # softlink to collection tmp dir
|
---|
1856 | my $tmp_dirname = &FileUtils::filenameConcatenate($ENV{'GSDLCOLLECTDIR'}, "tidytmp");
|
---|
1857 | &FileUtils::makeDirectory($tmp_dirname) if (!-e $tmp_dirname);
|
---|
1858 |
|
---|
1859 | my $test_dirname = "";
|
---|
1860 | my $f_separator = &util::get_os_dirsep();
|
---|
1861 |
|
---|
1862 | if ($dirname =~ m/import$f_separator/)
|
---|
1863 | {
|
---|
1864 | $test_dirname = $'; #'
|
---|
1865 |
|
---|
1866 | #print STDERR "init $'\n";
|
---|
1867 |
|
---|
1868 | while ($test_dirname =~ m/[$f_separator]/)
|
---|
1869 | {
|
---|
1870 | my $folderdirname = $`;
|
---|
1871 | $tmp_dirname = &FileUtils::filenameConcatenate($tmp_dirname,$folderdirname);
|
---|
1872 | &FileUtils::makeDirectory($tmp_dirname) if (!-e $tmp_dirname);
|
---|
1873 | $test_dirname = $'; #'
|
---|
1874 | }
|
---|
1875 | }
|
---|
1876 |
|
---|
1877 | my $tmp_filename = &FileUtils::filenameConcatenate($tmp_dirname, "$tailname$suffix");
|
---|
1878 |
|
---|
1879 | # tidy or convert the input file if it is a HTML-like file or it is accepted by the process_exp
|
---|
1880 | if (($suffix eq ".htm") || ($suffix eq ".html") || ($suffix eq ".shtml"))
|
---|
1881 | {
|
---|
1882 | #convert the input file to a new style HDL
|
---|
1883 | my $hdl_output_filename = $input_filename;
|
---|
1884 | if ($self->{'old_style_HDL'})
|
---|
1885 | {
|
---|
1886 | $hdl_output_filename = &FileUtils::filenameConcatenate($tmp_dirname, "$tailname$suffix");
|
---|
1887 | $hdl_output_filename = $self->convert_to_newHDLformat($input_filename,$hdl_output_filename);
|
---|
1888 | }
|
---|
1889 |
|
---|
1890 | #just for checking copy all other file from the base dir to tmp dir if it is not exists
|
---|
1891 | opendir(DIR,$base_dirname) or die "Can't open base directory : $base_dirname!";
|
---|
1892 | my @files = grep {!/^\.+$/} readdir(DIR);
|
---|
1893 | close(DIR);
|
---|
1894 |
|
---|
1895 | foreach my $file (@files)
|
---|
1896 | {
|
---|
1897 | my $src_file = &FileUtils::filenameConcatenate($base_dirname,$file);
|
---|
1898 | my $dest_file = &FileUtils::filenameConcatenate($tmp_dirname,$file);
|
---|
1899 | if ((!-e $dest_file) && (!-d $src_file))
|
---|
1900 | {
|
---|
1901 | # just copy the original file back to the tmp directory
|
---|
1902 | copy($src_file,$dest_file) or die "Can't copy file $src_file to $dest_file $!";
|
---|
1903 | }
|
---|
1904 | }
|
---|
1905 |
|
---|
1906 | # tidy the input file
|
---|
1907 | my $tidy_output_filename = $hdl_output_filename;
|
---|
1908 | if ($self->{'use_realistic_book'})
|
---|
1909 | {
|
---|
1910 | $tidy_output_filename = &FileUtils::filenameConcatenate($tmp_dirname, "$tailname$suffix");
|
---|
1911 | $tidy_output_filename = $self->tmp_tidy_file($hdl_output_filename,$tidy_output_filename);
|
---|
1912 | }
|
---|
1913 | $tmp_filename = $tidy_output_filename;
|
---|
1914 | }
|
---|
1915 | else
|
---|
1916 | {
|
---|
1917 | if (!-e $tmp_filename)
|
---|
1918 | {
|
---|
1919 | # just copy the original file back to the tmp directory
|
---|
1920 | copy($input_filename,$tmp_filename) or die "Can't copy file $input_filename to $tmp_filename $!";
|
---|
1921 | }
|
---|
1922 | }
|
---|
1923 |
|
---|
1924 | return $tmp_filename;
|
---|
1925 | }
|
---|
1926 |
|
---|
1927 |
|
---|
1928 | # Will make the html input file as a proper XML file with removed font tag and
|
---|
1929 | # image size added to the img tag.
|
---|
1930 | # The tidying process takes place in a collection specific 'tmp' directory so
|
---|
1931 | # that we don't accidentally damage the input.
|
---|
1932 | sub tmp_tidy_file
|
---|
1933 | {
|
---|
1934 | my $self = shift (@_);
|
---|
1935 | my ($file,$cnfile) = @_;
|
---|
1936 | my $input_filename = $file;
|
---|
1937 | my $tmp_filename = $cnfile;
|
---|
1938 |
|
---|
1939 | # get the input filename
|
---|
1940 | my ($tailname, $dirname, $suffix) = &File::Basename::fileparse($input_filename, "\\.[^\\.]+\$");
|
---|
1941 |
|
---|
1942 | require HTML::TokeParser::Simple;
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1943 |
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1944 | # create HTML parser to decode the input file
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1945 | my $parser = HTML::TokeParser::Simple->new($input_filename);
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1946 |
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1947 | # write HTML tmp file without the font tag and image size are added to the img tag
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1948 | open (PROD, ">$tmp_filename") || die("Error Writing to File: $tmp_filename $!");
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1949 | while (my $token = $parser->get_token())
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1950 | {
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1951 | # is it an img tag
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1952 | if ($token->is_start_tag('img'))
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1953 | {
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1954 | # get the attributes
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1955 | my $attr = $token->return_attr;
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1956 |
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1957 | # get the full path to the image
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1958 | my $img_file = &FileUtils::filenameConcatenate($dirname,$attr->{src});
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1959 |
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1960 | # set the width and height attribute
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1961 | ($attr->{width}, $attr->{height}) = imgsize($img_file);
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1962 |
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1963 | # recreate the tag
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1964 | print PROD "<img";
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1965 | print PROD map { qq { $_="$attr->{$_}"} } keys %$attr;
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1966 | print PROD ">";
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1967 | }
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1968 | # is it a font tag
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1969 | else
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1970 | {
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1971 | if (($token->is_start_tag('font')) || ($token->is_end_tag('font')))
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1972 | {
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1973 | # remove font tag
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1974 | print PROD "";
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1975 | }
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1976 | else
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1977 | {
|
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1978 | # print without changes
|
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1979 | print PROD $token->as_is;
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1980 | }
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1981 | }
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1982 | }
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1983 | close (PROD) || die("Error Closing File: $tmp_filename $!");
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1984 |
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1985 | # run html-tidy on the tmp file to make it a proper XML file
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1986 |
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1987 | my $outhandle = $self->{'outhandle'};
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1988 | print $outhandle "Converting HTML to be XML compliant:\n";
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1989 |
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1990 | my $tidy_cmd = "tidy";
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1991 | $tidy_cmd .= " -q" if ($self->{'verbosity'} <= 2);
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1992 | $tidy_cmd .= " -raw -wrap 0 -asxml \"$tmp_filename\"";
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1993 | if ($self->{'verbosity'} <= 2) {
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1994 | if ($ENV{'GSDLOS'} =~ m/^windows/i) {
|
---|
1995 | $tidy_cmd .= " 2>nul";
|
---|
1996 | }
|
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1997 | else {
|
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1998 | $tidy_cmd .= " 2>/dev/null";
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1999 | }
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2000 | print $outhandle " => $tidy_cmd\n";
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2001 | }
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2002 |
|
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2003 | my $tidyfile = `$tidy_cmd`;
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2004 |
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2005 | # write result back to the tmp file
|
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2006 | open (PROD, ">$tmp_filename") || die("Error Writing to File: $tmp_filename $!");
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2007 | print PROD $tidyfile;
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2008 | close (PROD) || die("Error Closing File: $tmp_filename $!");
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2009 |
|
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2010 | # return the output filename
|
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2011 | return $tmp_filename;
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2012 | }
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2013 |
|
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2014 | sub associate_cover_image
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2015 | {
|
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2016 | my $self = shift(@_);
|
---|
2017 | my ($doc_obj, $filename) = @_;
|
---|
2018 | if (($self->{'use_realistic_book'}) || ($self->{'old_style_HDL'}))
|
---|
2019 | {
|
---|
2020 | # we will have cover image in tidytmp, but want it from import
|
---|
2021 | $filename =~ s/([\\\/])tidytmp([\\\/])/$1import$2/;
|
---|
2022 | }
|
---|
2023 | $self->SUPER::associate_cover_image($doc_obj, $filename);
|
---|
2024 | }
|
---|
2025 |
|
---|
2026 |
|
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2027 | 1;
|
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