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#############################################################################
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## Name: Base64.pm
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## Purpose: XML::Smart::Base64
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## Author: Graciliano M. P.
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## Modified by:
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## Created: 25/5/2003
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## RCS-ID:
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## Copyright: (c) 2003 Graciliano M. P.
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## Licence: This program is free software; you can redistribute it and/or
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## modify it under the same terms as Perl itself
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#############################################################################
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##
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## Modified by Harish to fix bugs in xml creation and to errors more readable.
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## Tue Nov 1 21:18:43 IST 2011
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############################################################################
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package XML::Smart::Base64 ;
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use strict ;
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use warnings ;
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use Carp ;
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309
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use XML::Smart::Shared qw( _unset_sig_warn _reset_sig_warn ) ;
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7
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4
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5138
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our $VERSION = '1.3' ;
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35
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my ($BASE64_PM) ;
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4
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4
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9054
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eval("use MIME::Base64 ()") ;
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4
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3547
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4
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53
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if ( defined &MIME::Base64::encode_base64 ) { $BASE64_PM = 1 ;}
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#################
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# ENCODE_BASE64 #
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#################
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47
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sub encode_base64 {
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49
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0
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my $value = $_[0] ;
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51
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38
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141
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if( $BASE64_PM ) {
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38
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73
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eval {
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_unset_sig_warn() ;
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38
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750
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my $encoded = MIME::Base64::encode_base64( $value ) ;
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24
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my $decoded = MIME::Base64::decode_base64( $encoded) ;
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24
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75
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_reset_sig_warn() ;
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59
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24
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70
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my $tmp_decoded = $decoded ;
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60
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24
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73
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$tmp_decoded =~ s/\n//g ;
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61
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62
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my $tmp_value = $value ;
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$tmp_value =~ s/\n//g ;
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64
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65
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24
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90
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return $encoded if( $tmp_decoded eq $tmp_value ) ;
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};
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67
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68
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}
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69
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70
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{
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38
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87
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my $encoded ;
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38
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69
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72
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my $decoded ;
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73
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0
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0
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my $tmp_value ;
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74
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0
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0
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my $tmp_decoded ;
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75
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38
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eval {
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102
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_unset_sig_warn() ;
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77
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38
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119
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$encoded = _encode_base64_pure_perl( $value ) ;
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78
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38
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130
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$decoded = _decode_base64_pure_perl( $encoded ) ;
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79
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38
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182
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_reset_sig_warn() ;
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81
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38
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137
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$tmp_decoded = $decoded ;
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38
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2136
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$tmp_decoded =~ s/\n//g ;
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83
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84
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154
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$tmp_value = $value ;
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85
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38
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3113
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$tmp_value =~ s/\n//g ;
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86
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38
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50
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116
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} ; unless( $@ ) {
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87
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38
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100
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211
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return $encoded if( $tmp_decoded eq $tmp_value ) ;
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}
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89
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}
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90
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91
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{
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92
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14
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_unset_sig_warn() ;
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14
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57
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93
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14
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47
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my $encoded = _encode_ord_special( $value ) ;
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94
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14
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67
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my $decoded = _decode_ord_special( $encoded ) ;
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95
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14
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100
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_reset_sig_warn() ;
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96
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97
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14
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4824
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my $tmp_decoded = $decoded ;
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98
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14
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13894
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$tmp_decoded =~ s/\n//g ;
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99
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100
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14
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129
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my $tmp_value = $value ;
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101
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14
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3275
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$tmp_value =~ s/\n//g ;
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102
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103
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14
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50
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382
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return $encoded if( $tmp_decoded eq $tmp_value ) ;
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104
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}
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105
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106
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107
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108
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0
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0
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croak( "Error Encoding\n" ) ;
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109
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110
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}
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111
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112
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############################
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113
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# _ENCODE_BASE64_PURE_PERL #
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114
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############################
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115
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116
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sub _encode_base64_pure_perl {
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117
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64
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64
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116
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my $res = "";
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118
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64
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103
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my $eol = $_[1];
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119
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64
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50
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194
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$eol = "\n" unless defined $eol;
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120
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64
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1586
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pos($_[0]) = 0; # ensure start at the beginning
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121
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64
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386
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while ($_[0] =~ /(.{1,45})/gs) {
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122
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15685
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21405
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my $text = $1 ;
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123
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15685
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58578
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$res .= substr( pack('u', $text ), 1 ) ;
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124
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15685
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46959
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chop($res);
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125
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}
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126
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64
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1600
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$res =~ tr|` -_|AA-Za-z0-9+/|; # `# help emacs
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127
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# fix padding at the end
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128
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64
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237
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my $padding = (3 - length($_[0]) % 3) % 3;
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129
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64
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100
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1563
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$res =~ s/.{$padding}$/'=' x $padding/e if $padding;
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48
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191
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130
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# break encoded string into lines of no more than 76 characters each
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131
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64
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50
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169
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if (length $eol) {
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132
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64
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13932
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$res =~ s/(.{1,76})/$1$eol/g;
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133
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}
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134
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64
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1052
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$res;
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135
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}
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136
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137
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138
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139
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############################
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140
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# _ENCODE_ORD_SPECIAL #
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141
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############################
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142
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143
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144
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sub _encode_ord_special {
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145
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146
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28
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28
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92
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my $value = shift ;
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147
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148
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28
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148389
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my @chars = split( //, $value ) ;
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149
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28
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26649
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my @ords ;
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150
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28
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90
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foreach my $char ( @chars ) {
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151
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554698
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629188
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push @ords, ord( $char ) ;
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152
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}
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153
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154
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28
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244209
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return join( "|", @ords ) ;
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155
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156
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}
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157
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158
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159
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############################
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160
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# _DECODE_ORD_SPECIAL #
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161
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############################
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162
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163
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164
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sub _decode_ord_special {
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165
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166
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28
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28
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63
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my $value = shift ;
|
167
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28
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151688
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my @ords = split( /\|/, $value ) ;
|
168
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28
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17845
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my @chars ;
|
169
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28
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93
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foreach my $ord ( @ords ) {
|
170
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554698
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1078703
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push @chars, chr( $ord ) ;
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171
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}
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172
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173
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28
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97049
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return join( "", @chars ) ;
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174
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175
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}
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176
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177
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#################
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178
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# DECODE_BASE64 #
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179
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#################
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180
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181
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sub decode_base64 {
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182
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183
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26
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26
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0
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61
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my $value = $_[0] ;
|
184
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185
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26
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50
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117
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if( $BASE64_PM ) {
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186
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187
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26
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47
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eval {
|
188
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26
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|
86
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_unset_sig_warn() ;
|
189
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26
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|
3835
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my $decoded = MIME::Base64::decode_base64( $value ) ;
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190
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26
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1691
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my $encoded = MIME::Base64::encode_base64( $decoded ) ;
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191
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26
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93
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_reset_sig_warn() ;
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192
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193
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26
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83
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my $tmp_value = $value ;
|
194
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26
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3015
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$tmp_value =~ s/\n//g ;
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195
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196
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26
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48
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my $tmp_encoded = $encoded ;
|
197
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26
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|
2930
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$tmp_encoded =~ s/\n//g ;
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198
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199
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26
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100
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114
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return $decoded if( $tmp_encoded eq $tmp_value ) ;
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200
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};
|
201
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202
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}
|
203
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204
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{
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205
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206
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26
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42
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my $decoded ;
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26
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43
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207
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my $encoded ;
|
208
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0
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0
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my $tmp_value ;
|
209
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0
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0
|
my $tmp_encoded ;
|
210
|
26
|
|
|
|
|
38
|
eval {
|
211
|
26
|
|
|
|
|
70
|
$decoded = _decode_base64_pure_perl( $value ) ;
|
212
|
26
|
|
|
|
|
111
|
$encoded = _encode_base64_pure_perl( $decoded ) ;
|
213
|
|
|
|
|
|
|
|
214
|
26
|
|
|
|
|
63
|
$tmp_value = $value ;
|
215
|
26
|
|
|
|
|
2930
|
$tmp_value =~ s/\n//g ;
|
216
|
|
|
|
|
|
|
|
217
|
26
|
|
|
|
|
54
|
$tmp_encoded = $encoded ;
|
218
|
26
|
|
|
|
|
2762
|
$tmp_encoded =~ s/\n//g ;
|
219
|
26
|
50
|
|
|
|
76
|
} ; unless( $@ ) {
|
220
|
26
|
100
|
|
|
|
166
|
return $decoded if( $tmp_encoded eq $tmp_value ) ;
|
221
|
|
|
|
|
|
|
}
|
222
|
|
|
|
|
|
|
|
223
|
|
|
|
|
|
|
}
|
224
|
|
|
|
|
|
|
|
225
|
|
|
|
|
|
|
{
|
226
|
|
|
|
|
|
|
|
227
|
14
|
|
|
|
|
20
|
my $decoded = _decode_ord_special( $value ) ;
|
|
14
|
|
|
|
|
51
|
|
228
|
14
|
|
|
|
|
72
|
my $encoded = _encode_ord_special( $decoded ) ;
|
229
|
|
|
|
|
|
|
|
230
|
14
|
|
|
|
|
74
|
my $tmp_value = $value ;
|
231
|
14
|
|
|
|
|
3494
|
$tmp_value =~ s/\n//g ;
|
232
|
|
|
|
|
|
|
|
233
|
14
|
|
|
|
|
54
|
my $tmp_encoded = $encoded ;
|
234
|
14
|
|
|
|
|
1203
|
$tmp_encoded =~ s/\n//g ;
|
235
|
|
|
|
|
|
|
|
236
|
14
|
50
|
|
|
|
1384
|
return $decoded if( $tmp_encoded eq $tmp_value ) ;
|
237
|
|
|
|
|
|
|
|
238
|
|
|
|
|
|
|
}
|
239
|
|
|
|
|
|
|
|
240
|
0
|
|
|
|
|
0
|
croak "Error Decoding $value\n" ;
|
241
|
|
|
|
|
|
|
|
242
|
|
|
|
|
|
|
}
|
243
|
|
|
|
|
|
|
|
244
|
|
|
|
|
|
|
|
245
|
|
|
|
|
|
|
############################
|
246
|
|
|
|
|
|
|
# _DECODE_BASE64_PURE_PERL #
|
247
|
|
|
|
|
|
|
############################
|
248
|
|
|
|
|
|
|
|
249
|
|
|
|
|
|
|
sub _decode_base64_pure_perl {
|
250
|
64
|
|
|
64
|
|
317
|
local($^W) = 0 ;
|
251
|
64
|
|
|
|
|
217
|
my $str = shift ;
|
252
|
64
|
|
|
|
|
111
|
my $res = "";
|
253
|
|
|
|
|
|
|
|
254
|
64
|
|
|
|
|
12336
|
$str =~ tr|A-Za-z0-9+=/||cd; # remove non-base64 chars
|
255
|
64
|
100
|
|
|
|
1416
|
if (length($str) % 4) {
|
256
|
|
|
|
|
|
|
#require Carp;
|
257
|
|
|
|
|
|
|
#Carp::carp("Length of base64 data not a multiple of 4")
|
258
|
|
|
|
|
|
|
}
|
259
|
64
|
|
|
|
|
3225
|
$str =~ s/=+$//; # remove padding
|
260
|
64
|
|
|
|
|
5117
|
$str =~ tr|A-Za-z0-9+/| -_|; # convert to uuencoded format
|
261
|
64
|
|
|
|
|
494
|
while ($str =~ /(.{1,60})/gs) {
|
262
|
15680
|
|
|
|
|
27883
|
my $len = chr(32 + length($1)*3/4); # compute length byte
|
263
|
15680
|
|
|
|
|
72239
|
$res .= unpack("u", $len . $1 ); # uudecode
|
264
|
|
|
|
|
|
|
}
|
265
|
64
|
|
|
|
|
992
|
$res;
|
266
|
|
|
|
|
|
|
}
|
267
|
|
|
|
|
|
|
|
268
|
|
|
|
|
|
|
#######
|
269
|
|
|
|
|
|
|
# END #
|
270
|
|
|
|
|
|
|
#######
|
271
|
|
|
|
|
|
|
|
272
|
|
|
|
|
|
|
1;
|
273
|
|
|
|
|
|
|
|