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PK GV"\ %x�� � ETag.pmnu �[��� package HTTP::Headers::ETag; use strict; use warnings; our $VERSION = '6.29'; require HTTP::Date; require HTTP::Headers; package HTTP::Headers; sub _etags { my $self = shift; my $header = shift; my @old = _split_etag_list($self->_header($header)); if (@_) { $self->_header($header => join(", ", _split_etag_list(@_))); } wantarray ? @old : join(", ", @old); } sub etag { shift->_etags("ETag", @_); } sub if_match { shift->_etags("If-Match", @_); } sub if_none_match { shift->_etags("If-None-Match", @_); } sub if_range { # Either a date or an entity-tag my $self = shift; my @old = $self->_header("If-Range"); if (@_) { my $new = shift; if (!defined $new) { $self->remove_header("If-Range"); } elsif ($new =~ /^\d+$/) { $self->_date_header("If-Range", $new); } else { $self->_etags("If-Range", $new); } } return unless defined(wantarray); for (@old) { my $t = HTTP::Date::str2time($_); $_ = $t if $t; } wantarray ? @old : join(", ", @old); } # Split a list of entity tag values. The return value is a list # consisting of one element per entity tag. Suitable for parsing # headers like C<If-Match>, C<If-None-Match>. You might even want to # use it on C<ETag> and C<If-Range> entity tag values, because it will # normalize them to the common form. # # entity-tag = [ weak ] opaque-tag # weak = "W/" # opaque-tag = quoted-string sub _split_etag_list { my(@val) = @_; my @res; for (@val) { while (length) { my $weak = ""; $weak = "W/" if s,^\s*[wW]/,,; my $etag = ""; if (s/^\s*(\"[^\"\\]*(?:\\.[^\"\\]*)*\")//) { push(@res, "$weak$1"); } elsif (s/^\s*,//) { push(@res, qq(W/"")) if $weak; } elsif (s/^\s*([^,\s]+)//) { $etag = $1; $etag =~ s/([\"\\])/\\$1/g; push(@res, qq($weak"$etag")); } elsif (s/^\s+// || !length) { push(@res, qq(W/"")) if $weak; } else { die "This should not happen: '$_'"; } } } @res; } 1; __END__ =pod =encoding UTF-8 =head1 NAME HTTP::Headers::ETag =head1 VERSION version 6.29 =head1 AUTHOR Gisle Aas <gisle@activestate.com> =head1 COPYRIGHT AND LICENSE This software is copyright (c) 1994 by Gisle Aas. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. =cut PK GV"\�� � � Util.pmnu �[��� package HTTP::Headers::Util; use strict; use warnings; our $VERSION = '6.29'; use base 'Exporter'; our @EXPORT_OK=qw(split_header_words _split_header_words join_header_words); sub split_header_words { my @res = &_split_header_words; for my $arr (@res) { for (my $i = @$arr - 2; $i >= 0; $i -= 2) { $arr->[$i] = lc($arr->[$i]); } } return @res; } sub _split_header_words { my(@val) = @_; my @res; for (@val) { my @cur; while (length) { if (s/^\s*(=*[^\s=;,]+)//) { # 'token' or parameter 'attribute' push(@cur, $1); # a quoted value if (s/^\s*=\s*\"([^\"\\]*(?:\\.[^\"\\]*)*)\"//) { my $val = $1; $val =~ s/\\(.)/$1/g; push(@cur, $val); # some unquoted value } elsif (s/^\s*=\s*([^;,\s]*)//) { my $val = $1; $val =~ s/\s+$//; push(@cur, $val); # no value, a lone token } else { push(@cur, undef); } } elsif (s/^\s*,//) { push(@res, [@cur]) if @cur; @cur = (); } elsif (s/^\s*;// || s/^\s+//) { # continue } else { die "This should not happen: '$_'"; } } push(@res, \@cur) if @cur; } @res; } sub join_header_words { @_ = ([@_]) if @_ && !ref($_[0]); my @res; for (@_) { my @cur = @$_; my @attr; while (@cur) { my $k = shift @cur; my $v = shift @cur; if (defined $v) { if ($v =~ /[\x00-\x20()<>@,;:\\\"\/\[\]?={}\x7F-\xFF]/ || !length($v))
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