1 | package rbCGI;
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2 |
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3 |
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4 | use strict;
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5 | no strict 'subs';
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6 | no strict 'refs'; # allow filehandles to be variables and viceversa
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7 |
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8 | use CGI;
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9 | use Cwd;
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10 | use MIME::Base64;
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11 |
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12 | @rbCGI::ISA = ( 'CGI' );
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13 |
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14 | sub new {
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15 | my $class = shift @_;
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16 |
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17 | my $self = new CGI;
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18 |
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19 | $self->{'site_filename'} = "rbsite.cfg";
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20 |
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21 | return bless $self, $class;
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22 | }
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23 |
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24 |
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25 | sub parse_cgi_args
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26 | {
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27 | my $self = shift @_;
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28 | my $xml = (defined $self->param("xml")) ? 1 : 0;
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29 |
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30 | $self->{'xml'} = $xml;
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31 |
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32 | my @var_names = $self->param;
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33 | my @arg_list = ();
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34 | foreach my $n ( @var_names ) {
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35 | my $arg = "$n=";
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36 | my $val = $self->param($n);
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37 | $arg .= $val if (defined $val);
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38 | push(@arg_list,$arg);
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39 | }
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40 |
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41 | $self->{'args'} = join("&",@arg_list);
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42 | }
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43 |
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44 |
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45 | sub clean_param
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46 | {
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47 | my $self = shift @_;
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48 | my ($param) = @_;
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49 |
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50 | my $val = $self->SUPER::param($param);
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51 | $val =~ s/[\r\n]+$// if (defined $val);
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52 |
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53 | return $val;
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54 | }
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55 |
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56 | sub safe_val
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57 | {
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58 | my $self = shift @_;
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59 | my ($val) = @_;
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60 |
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61 | # ensure only alpha-numeric plus a few other special chars remain
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62 |
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63 | $val =~ s/[^[:alnum:]@\.\/\- :_]//g if (defined $val);
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64 |
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65 | return $val;
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66 | }
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67 |
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68 | sub generate_message
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69 | {
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70 | my $self = shift @_;
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71 | my ($message) = @_;
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72 |
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73 | print STDOUT "Content-type:text/plain\n\n$message";
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74 |
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75 | }
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76 |
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77 | sub generate_error
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78 | {
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79 | my $self = shift @_;
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80 | my ($mess) = @_;
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81 |
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82 | my $xml = $self->{'xml'};
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83 |
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84 | my $full_mess;
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85 | my $args = $self->{'args'};
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86 |
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87 | if ($xml) {
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88 | # Make $args XML safe
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89 | my $args_xml_safe = $args;
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90 | $args_xml_safe =~ s/&/&/g;
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91 |
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92 | $full_mess = "<Error>\n";
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93 | $full_mess .= " $mess\n";
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94 | $full_mess .= " CGI args were: $args_xml_safe\n";
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95 | $full_mess .= "</Error>\n";
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96 | }
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97 | else {
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98 | $full_mess = "ERROR: $mess\n ($args)\n";
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99 | }
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100 |
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101 | $self->generate_message($full_mess);
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102 |
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103 | die $full_mess;
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104 | }
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105 |
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106 | sub generate_warning
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107 | {
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108 | my $self = shift @_;
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109 | my ($mess) = @_;
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110 |
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111 | my $xml = $self->{'xml'};
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112 |
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113 | my $full_mess;
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114 | my $args = $self->{'args'};
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115 |
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116 | if ($xml) {
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117 | # Make $args XML safe
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118 | my $args_xml_safe = $args;
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119 | $args_xml_safe =~ s/&/&/g;
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120 |
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121 | $full_mess = "<Warning>\n";
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122 | $full_mess .= " $mess\n";
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123 | $full_mess .= " CGI args were: $args_xml_safe\n";
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124 | $full_mess .= "</Warning>\n";
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125 | }
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126 | else {
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127 | $full_mess = "Warning: $mess ($args)\n";
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128 | }
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129 |
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130 | $self->generate_message($full_mess);
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131 |
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132 | print STDERR $full_mess;
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133 | }
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134 |
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135 |
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136 | sub generate_ok_message
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137 | {
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138 | my $self = shift @_;
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139 | my ($mess) = @_;
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140 |
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141 | my $xml = $self->{'xml'};
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142 |
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143 | my $full_mess;
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144 |
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145 | if ($xml) {
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146 | $full_mess = "<Accepted>\n";
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147 | $full_mess .= " $mess\n";
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148 | $full_mess .= "</Accepted>\n";
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149 | }
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150 | else {
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151 | $full_mess = "$mess\n";
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152 | }
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153 |
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154 | $self->generate_message($full_mess);
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155 | }
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156 |
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157 |
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158 |
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159 | sub get_config_info {
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160 | my $self = shift @_;
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161 | my ($infotype, $optional) = @_;
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162 |
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163 | my $site_filename = $self->{'site_filename'};
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164 | open (FILEIN, "<$site_filename")
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165 | || $self->generate_error("Could not open $site_filename");
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166 |
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167 | my $config_content = "";
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168 | while(defined (my $line = <FILEIN>)) {
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169 | $config_content .= $line;
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170 | }
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171 | close(FILEIN);
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172 |
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173 | my ($loc) = ($config_content =~ m/^$infotype\s+((\".+\")|(\S+))\s*\n/m);
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174 | $loc =~ s/\"//g if defined $loc;
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175 |
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176 | if ((!defined $loc) || ($loc =~ m/^\s*$/)) {
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177 | if((!defined $optional) || (!$optional)) {
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178 | $self->generate_error("$infotype is not set in $site_filename");
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179 | }
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180 | }
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181 |
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182 | return $loc;
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183 | }
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184 |
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185 |
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186 | sub get_rb_home {
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187 | my $self = shift @_;
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188 |
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189 | if (defined $self->{'rbhome'}) {
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190 | return $self->{'rbhome'};
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191 | }
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192 |
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193 | my $rbhome = $self->get_config_info("rbhome");
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194 |
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195 | $rbhome =~ s/(\/|\\)$//; # remove trailing slash
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196 |
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197 | $self->{'rbhome'} = $rbhome;
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198 |
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199 | return $rbhome;
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200 | }
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201 |
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202 | sub get_rb_os {
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203 | my $self = shift @_;
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204 |
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205 | my $os = $^O;
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206 |
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207 | if ($os =~ m/linux/i) {
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208 | return "linux";
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209 | }
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210 | elsif ($os =~ m/mswin/i) {
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211 | return "windows";
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212 | }
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213 | elsif ($os =~ m/macos/i) {
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214 | return "darwin";
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215 | }
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216 | else {
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217 | # return as is.
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218 | return $os;
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219 | }
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220 | }
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221 |
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222 |
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223 | sub setup_rb {
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224 | my $self = shift @_;
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225 | my $optional = 1; # ignore absence of specified properties in rbsite.cfg if not found
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226 |
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227 | my $rbhome = $self->get_rb_home();
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228 | my $rbos = $self->get_rb_os();
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229 | $ENV{'REALISTIC_BOOKS_HOME'} = $rbhome;
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230 | $ENV{'RBOS'} = $rbos;
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231 | $ENV{'GSDLOS'} = $rbos;
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232 |
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233 | require util;
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234 |
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235 | my $rb_bin_script = &util::filename_cat($rbhome,"bin","script");
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236 | &util::envvar_append("PATH",$rb_bin_script);
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237 |
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238 | my $rb_bin_os = &util::filename_cat($rbhome,"bin",$rbos);
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239 | &util::envvar_append("PATH",$rb_bin_os);
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240 |
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241 |
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242 | my $rb_bin_perl = &util::filename_cat($rbhome,"bin",$rbos,"perl","bin");
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243 | &util::envvar_append("PATH",$rb_bin_perl);
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244 |
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245 | }
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246 |
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247 |
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248 | sub checked_chdir
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249 | {
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250 | my $self = shift @_;
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251 | my ($dir) = @_;
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252 |
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253 | if (!-e $dir) {
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254 | $self->generate_error("Directory '$dir' does not exist");
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255 | }
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256 |
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257 | chdir $dir
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258 | || $self->generate_error("Unable to change to directory: $dir");
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259 | }
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260 |
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261 |
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262 | sub decode {
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263 | my ($self, $text) = @_;
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264 | $text =~ s/\+/ /g;
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265 | $text = &MIME::Base64::decode_base64($text);
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266 |
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267 | return $text;
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268 | }
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269 |
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270 | 1;
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271 |
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