package CGI::Util;
use strict;
-use vars '$VERSION','@EXPORT_OK','@ISA','$EBCDIC','@A2E';
+use vars qw($VERSION @EXPORT_OK @ISA $EBCDIC @A2E @E2A);
require Exporter;
@ISA = qw(Exporter);
-@EXPORT_OK = qw(rearrange make_attributes unescape escape expires);
+@EXPORT_OK = qw(rearrange make_attributes unescape escape
+ expires ebcdic2ascii ascii2ebcdic);
-$VERSION = '1.1';
+$VERSION = '1.5';
$EBCDIC = "\t" ne "\011";
-if ($EBCDIC) {
+# (ord('^') == 95) for codepage 1047 as on os390, vmesa
@A2E = (
- 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 21, 11, 12, 13, 14, 15,
- 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31,
- 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97,
-240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111,
-124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214,
-215,216,217,226,227,228,229,230,231,232,233,173,224,189, 95,109,
-121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150,
-151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7,
- 32, 33, 34, 35, 36, 37, 6, 23, 40, 41, 42, 43, 44, 9, 10, 27,
- 48, 49, 26, 51, 52, 53, 54, 8, 56, 57, 58, 59, 4, 20, 62,255,
- 65,170, 74,177,159,178,106,181,187,180,154,138,176,202,175,188,
-144,143,234,250,190,160,182,179,157,218,155,139,183,184,185,171,
-100,101, 98,102, 99,103,158,104,116,113,114,115,120,117,118,119,
-172,105,237,238,235,239,236,191,128,253,254,251,252,186,174, 89,
- 68, 69, 66, 70, 67, 71,156, 72, 84, 81, 82, 83, 88, 85, 86, 87,
-140, 73,205,206,203,207,204,225,112,221,222,219,220,141,142,223
- );
+ 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 21, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31,
+ 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97,
+ 240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111,
+ 124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214,
+ 215,216,217,226,227,228,229,230,231,232,233,173,224,189, 95,109,
+ 121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150,
+ 151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7,
+ 32, 33, 34, 35, 36, 37, 6, 23, 40, 41, 42, 43, 44, 9, 10, 27,
+ 48, 49, 26, 51, 52, 53, 54, 8, 56, 57, 58, 59, 4, 20, 62,255,
+ 65,170, 74,177,159,178,106,181,187,180,154,138,176,202,175,188,
+ 144,143,234,250,190,160,182,179,157,218,155,139,183,184,185,171,
+ 100,101, 98,102, 99,103,158,104,116,113,114,115,120,117,118,119,
+ 172,105,237,238,235,239,236,191,128,253,254,251,252,186,174, 89,
+ 68, 69, 66, 70, 67, 71,156, 72, 84, 81, 82, 83, 88, 85, 86, 87,
+ 140, 73,205,206,203,207,204,225,112,221,222,219,220,141,142,223
+ );
+@E2A = (
+ 0, 1, 2, 3,156, 9,134,127,151,141,142, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19,157, 10, 8,135, 24, 25,146,143, 28, 29, 30, 31,
+ 128,129,130,131,132,133, 23, 27,136,137,138,139,140, 5, 6, 7,
+ 144,145, 22,147,148,149,150, 4,152,153,154,155, 20, 21,158, 26,
+ 32,160,226,228,224,225,227,229,231,241,162, 46, 60, 40, 43,124,
+ 38,233,234,235,232,237,238,239,236,223, 33, 36, 42, 41, 59, 94,
+ 45, 47,194,196,192,193,195,197,199,209,166, 44, 37, 95, 62, 63,
+ 248,201,202,203,200,205,206,207,204, 96, 58, 35, 64, 39, 61, 34,
+ 216, 97, 98, 99,100,101,102,103,104,105,171,187,240,253,254,177,
+ 176,106,107,108,109,110,111,112,113,114,170,186,230,184,198,164,
+ 181,126,115,116,117,118,119,120,121,122,161,191,208, 91,222,174,
+ 172,163,165,183,169,167,182,188,189,190,221,168,175, 93,180,215,
+ 123, 65, 66, 67, 68, 69, 70, 71, 72, 73,173,244,246,242,243,245,
+ 125, 74, 75, 76, 77, 78, 79, 80, 81, 82,185,251,252,249,250,255,
+ 92,247, 83, 84, 85, 86, 87, 88, 89, 90,178,212,214,210,211,213,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,179,219,220,217,218,159
+ );
+
+if ($EBCDIC && ord('^') == 106) { # as in the BS2000 posix-bc coded character set
+ $A2E[91] = 187; $A2E[92] = 188; $A2E[94] = 106; $A2E[96] = 74;
+ $A2E[123] = 251; $A2E[125] = 253; $A2E[126] = 255; $A2E[159] = 95;
+ $A2E[162] = 176; $A2E[166] = 208; $A2E[168] = 121; $A2E[172] = 186;
+ $A2E[175] = 161; $A2E[217] = 224; $A2E[219] = 221; $A2E[221] = 173;
+ $A2E[249] = 192;
+
+ $E2A[74] = 96; $E2A[95] = 159; $E2A[106] = 94; $E2A[121] = 168;
+ $E2A[161] = 175; $E2A[173] = 221; $E2A[176] = 162; $E2A[186] = 172;
+ $E2A[187] = 91; $E2A[188] = 92; $E2A[192] = 249; $E2A[208] = 166;
+ $E2A[221] = 219; $E2A[224] = 217; $E2A[251] = 123; $E2A[253] = 125;
+ $E2A[255] = 126;
+ }
+elsif ($EBCDIC && ord('^') == 176) { # as in codepage 037 on os400
+ $A2E[10] = 37; $A2E[91] = 186; $A2E[93] = 187; $A2E[94] = 176;
+ $A2E[133] = 21; $A2E[168] = 189; $A2E[172] = 95; $A2E[221] = 173;
+
+ $E2A[21] = 133; $E2A[37] = 10; $E2A[95] = 172; $E2A[173] = 221;
+ $E2A[176] = 94; $E2A[186] = 91; $E2A[187] = 93; $E2A[189] = 168;
}
# Smart rearrangement of parameters to allow named parameter
my ($i,%pos);
$i = 0;
foreach (@$order) {
- foreach (ref($_) eq 'ARRAY' ? @$_ : $_) { $pos{$_} = $i; }
+ foreach (ref($_) eq 'ARRAY' ? @$_ : $_) { $pos{lc($_)} = $i; }
$i++;
}
my (@result,%leftover);
$#result = $#$order; # preextend
while (@param) {
- my $key = uc(shift(@param));
+ my $key = lc(shift(@param));
$key =~ s/^\-//;
if (exists $pos{$key}) {
$result[$pos{$key}] = shift(@param);
}
}
- push (@result,make_attributes(\%leftover)) if %leftover;
+ push (@result,make_attributes(\%leftover,defined $CGI::Q ? $CGI::Q->{escape} : 1)) if %leftover;
@result;
}
sub make_attributes {
my $attr = shift;
return () unless $attr && ref($attr) && ref($attr) eq 'HASH';
- my $escape = shift || 0;
+ my $escape = shift || 0;
my(@att);
foreach (keys %{$attr}) {
my($key) = $_;
$key=~s/^\-//; # get rid of initial - if present
- $key=~tr/a-z_/A-Z-/; # parameters are upper case, use dashes
+
+ # old way: breaks EBCDIC!
+ # $key=~tr/A-Z_/a-z-/; # parameters are lower case, use dashes
+
+ ($key="\L$key") =~ tr/_/-/; # parameters are lower case, use dashes
+
my $value = $escape ? simple_escape($attr->{$_}) : $attr->{$_};
push(@att,defined($attr->{$_}) ? qq/$key="$value"/ : qq/$key/);
}
}
sub simple_escape {
- return unless defined (my $toencode = shift);
- $toencode =~ s{(.)}{
- if ($1 eq '<') { '<' }
- elsif ($1 eq '>') { '>' }
- elsif ($1 eq '&') { '&' }
- elsif ($1 eq '"') { '"' }
- elsif ($1 eq "\x8b") { '‹' }
- elsif ($1 eq "\x9b") { '›' }
- else { $1 }
- }gsex;
+ return unless defined(my $toencode = shift);
+ $toencode =~ s{&}{&}gso;
+ $toencode =~ s{<}{<}gso;
+ $toencode =~ s{>}{>}gso;
+ $toencode =~ s{\"}{"}gso;
+# Doesn't work. Can't work. forget it.
+# $toencode =~ s{\x8b}{‹}gso;
+# $toencode =~ s{\x9b}{›}gso;
$toencode;
}
+sub utf8_chr {
+ my $c = shift(@_);
+ return chr($c) if $] >= 5.006;
+
+ if ($c < 0x80) {
+ return sprintf("%c", $c);
+ } elsif ($c < 0x800) {
+ return sprintf("%c%c", 0xc0 | ($c >> 6), 0x80 | ($c & 0x3f));
+ } elsif ($c < 0x10000) {
+ return sprintf("%c%c%c",
+ 0xe0 | ($c >> 12),
+ 0x80 | (($c >> 6) & 0x3f),
+ 0x80 | ( $c & 0x3f));
+ } elsif ($c < 0x200000) {
+ return sprintf("%c%c%c%c",
+ 0xf0 | ($c >> 18),
+ 0x80 | (($c >> 12) & 0x3f),
+ 0x80 | (($c >> 6) & 0x3f),
+ 0x80 | ( $c & 0x3f));
+ } elsif ($c < 0x4000000) {
+ return sprintf("%c%c%c%c%c",
+ 0xf8 | ($c >> 24),
+ 0x80 | (($c >> 18) & 0x3f),
+ 0x80 | (($c >> 12) & 0x3f),
+ 0x80 | (($c >> 6) & 0x3f),
+ 0x80 | ( $c & 0x3f));
+
+ } elsif ($c < 0x80000000) {
+ return sprintf("%c%c%c%c%c%c",
+ 0xfc | ($c >> 30),
+ 0x80 | (($c >> 24) & 0x3f),
+ 0x80 | (($c >> 18) & 0x3f),
+ 0x80 | (($c >> 12) & 0x3f),
+ 0x80 | (($c >> 6) & 0x3f),
+ 0x80 | ( $c & 0x3f));
+ } else {
+ return utf8_chr(0xfffd);
+ }
+}
+
# unescape URL-encoded data
sub unescape {
- shift() if ref($_[0]) || (defined $_[1] && $_[0] eq $CGI::DefaultClass);
+ shift() if @_ > 0 and (ref($_[0]) || (defined $_[1] && $_[0] eq $CGI::DefaultClass));
my $todecode = shift;
return undef unless defined($todecode);
$todecode =~ tr/+/ /; # pluses become spaces
+ $EBCDIC = "\t" ne "\011";
if ($EBCDIC) {
$todecode =~ s/%([0-9a-fA-F]{2})/chr $A2E[hex($1)]/ge;
} else {
- $todecode =~ s/%([0-9a-fA-F]{2})/chr hex($1)/ge;
+ $todecode =~ s/%(?:([0-9a-fA-F]{2})|u([0-9a-fA-F]{4}))/
+ defined($1)? chr hex($1) : utf8_chr(hex($2))/ge;
}
return $todecode;
}
# URL-encode data
sub escape {
- shift() if ref($_[0]) || (defined $_[1] && $_[0] eq $CGI::DefaultClass);
+ shift() if @_ > 1 and ( ref($_[0]) || (defined $_[1] && $_[0] eq $CGI::DefaultClass));
my $toencode = shift;
return undef unless defined($toencode);
- $toencode=~s/([^a-zA-Z0-9_.-])/uc sprintf("%%%02x",ord($1))/eg;
+ # we enforce UTF-8 encoding for URLs for no good reason except UTF-8 being the future
+ utf8::encode $toencode;
+ if ($EBCDIC) {
+ $toencode=~s/([^a-zA-Z0-9_.~-])/uc sprintf("%%%02x",$E2A[ord($1)])/eg;
+ } else {
+ $toencode=~s/([^a-zA-Z0-9_.~-])/uc sprintf("%%%02x",ord($1))/eg;
+ }
return $toencode;
}
# specifying the date yourself
my($offset);
if (!$time || (lc($time) eq 'now')) {
- $offset = 0;
+ $offset = 0;
} elsif ($time=~/^\d+/) {
- return $time;
- } elsif ($time=~/^([+-]?(?:\d+|\d*\.\d*))([mhdMy]?)/) {
- $offset = ($mult{$2} || 1)*$1;
+ return $time;
+ } elsif ($time=~/^([+-]?(?:\d+|\d*\.\d*))([smhdMy])/) {
+ $offset = ($mult{$2} || 1)*$1;
} else {
- return $time;
+ return $time;
}
return (time+$offset);
}
+sub ebcdic2ascii {
+ my $data = shift;
+ $data =~ s/(.)/chr $E2A[ord($1)]/ge;
+ $data;
+}
+
+sub ascii2ebcdic {
+ my $data = shift;
+ $data =~ s/(.)/chr $A2E[ord($1)]/ge;
+ $data;
+}
+
1;
+
+__END__
+
+=head1 NAME
+
+CGI::Util - Internal utilities used by CGI module
+
+=head1 SYNOPSIS
+
+none
+
+=head1 DESCRIPTION
+
+no public subroutines
+
+=head1 AUTHOR INFORMATION
+
+Copyright 1995-1998, Lincoln D. Stein. All rights reserved.
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+Address bug reports and comments to: lstein@cshl.org. When sending
+bug reports, please provide the version of CGI.pm, the version of
+Perl, the name and version of your Web server, and the name and
+version of the operating system you are using. If the problem is even
+remotely browser dependent, please provide information about the
+affected browers as well.
+
+=head1 SEE ALSO
+
+L<CGI>
+
+=cut
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