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=head1 NAME
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Message::Header Perl module
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=head1 DESCRIPTION
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Perl module for RFC 822/2822 message C<header>.
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=cut
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package Message::Header;
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use strict;
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use vars qw($VERSION %REG);
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$VERSION = '1.00';
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use Carp ();
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use overload '@{}' => sub { shift->_delete_empty_field->{field} },
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'""' => sub { shift->stringify },
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fallback => 1;
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$REG{WSP} = qr/[\x09\x20]/;
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$REG{FWS} = qr/[\x09\x20]*/;
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$REG{M_field} = qr/^([^\x3A]+):$REG{FWS}([\x00-\xFF]*)$/;
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$REG{M_fromline} = qr/^\x3E?From$REG{WSP}+([\x00-\xFF]*)$/;
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$REG{UNSAFE_field_name} = qr/[\x00-\x20\x3A\x7F-\xFF]/;
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=head2 options
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These options can be getten/set by C<get_option>/C<set_option>
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method.
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=head3 capitalize = 0/1
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(First character of) C<field-name> is capitalized
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when C<stringify>. (Default = 1)
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=head3 fold_length = numeric value
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Length of line used to fold. (Default = 70)
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=head3 mail_from = 0/1
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Outputs "From " line (known as Un*x From, Mail-From, and so on)
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when C<stringify>. (Default = 0)
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=cut
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=head1 CONSTRUCTORS
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The following methods construct new C<Message::Header> objects:
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=over 4
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## Initialize
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my %DEFAULT = (
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capitalize => 1,
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fold_length => 70,
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#field_type => {},
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format => 'mail-rfc2822',
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mail_from => 0,
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output_bcc => 0,
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parse_all => 0,
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sort => 'none',
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translate_underscore => 1,
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validate => 1,
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);
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$DEFAULT{field_type} = {
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':DEFAULT' => 'Message::Field::Unstructured',
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received => 'Message::Field::Received',
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'x-received' => 'Message::Field::Received',
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'content-type' => 'Message::Field::ContentType',
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'content-disposition' => 'Message::Field::ContentDisposition',
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'auto-submitted' => 'Message::Field::ValueParams',
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link => 'Message::Field::ValueParams',
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archive => 'Message::Field::ValueParams',
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'x-face-type' => 'Message::Field::ValueParams',
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subject => 'Message::Field::Subject',
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'x-nsubject' => 'Message::Field::Subject',
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'list-software' => 'Message::Field::UA',
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'user-agent' => 'Message::Field::UA',
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server => 'Message::Field::UA',
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## Numeric value
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'content-length' => 'Message::Field::Numval',
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lines => 'Message::Field::Numval',
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'max-forwards' => 'Message::Field::Numval',
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'mime-version' => 'Message::Field::Numval',
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'x-jsmail-priority' => 'Message::Field::Numval',
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'x-priority' => 'Message::Field::Numval',
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path => 'Message::Field::Path',
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};
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for (qw(cancel-lock importance precedence list-id
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x-face x-mail-count x-msmail-priority x-priority xref))
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Structured'}
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for (qw(approved bcc cc complaints-to
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delivered-to disposition-notification-to envelope-to
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errors-to fcc from mail-followup-to mail-followup-cc
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mail-reply-to
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notice-requested-upon-delivery-to reply-to resent-bcc
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resent-cc resent-to resent-from resent-sender return-path
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return-receipt-to sender to x-approved x-beenthere
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x-complaints-to x-envelope-from x-envelope-sender
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x-envelope-to x-ml-address x-ml-command x-ml-to x-nfrom x-nto))
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Address'}
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for (qw(date date-received delivery-date expires
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expire-date nntp-posting-date posted reply-by resent-date x-tcup-date))
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Date'}
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for (qw(article-updates client-date content-id in-reply-to message-id
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references resent-message-id see-also supersedes))
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{$DEFAULT{field_type}->{$_} = 'Message::Field::MsgID'}
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for (qw(accept accept-charset accept-encoding accept-language
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content-language
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content-transfer-encoding encrypted followup-to keywords
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list-archive list-digest list-help list-owner
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list-post list-subscribe list-unsubscribe list-url uri newsgroups
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x-brother x-daughter x-respect x-moe x-syster x-wife))
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{$DEFAULT{field_type}->{$_} = 'Message::Field::CSV'}
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for (qw(content-alias content-base content-location location referer
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url x-home-page x-http_referer
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x-info x-pgp-key x-ml-url x-uri x-url x-web))
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{$DEFAULT{field_type}->{$_} = 'Message::Field::URI'}
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## taken from L<HTTP::Header>
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# "Good Practice" order of HTTP message headers:
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# - General-Headers
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# - Request-Headers
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# - Response-Headers
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# - Entity-Headers
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# (From draft-ietf-http-v11-spec-rev-01, Nov 21, 1997)
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my @header_order = qw(
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mail-from x-envelope-from relay-version path status
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cache-control connection date pragma transfer-encoding upgrade trailer via
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accept accept-charset accept-encoding accept-language
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authorization expect from host
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if-modified-since if-match if-none-match if-range if-unmodified-since
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max-forwards proxy-authorization range referer te user-agent
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accept-ranges age location proxy-authenticate retry-after server vary
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warning www-authenticate
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mime-version
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allow content-base content-encoding content-language content-length
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content-location content-md5 content-range content-type
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etag expires last-modified content-style-type content-script-type
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link
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xref
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);
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my %header_order;
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sub _init ($;%) {
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my $self = shift;
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my %options = @_;
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$self->{field} = [];
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$self->{option} = \%DEFAULT;
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my @new_fields = ();
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for my $name (keys %options) {
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if (substr ($name, 0, 1) eq '-') {
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$self->{option}->{substr ($name, 1)} = $options{$name};
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} else {
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push @new_fields, ($name => $options{$name});
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}
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}
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$self->add (@new_fields, -parse => $self->{option}->{parse_all})
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if $#new_fields > -1;
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my $format = $self->{option}->{format};
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if ($format =~ /^cgi/) {
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unshift @header_order, qw(content-type location);
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$self->{option}->{sort} = 'good-practice';
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} elsif ($format =~ /^http/) {
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$self->{option}->{sort} = 'good-practice';
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}
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# Make alternative representations of @header_order. This is used
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# for sorting.
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my $i = 1;
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for (@header_order) {
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$header_order{$_} = $i++ unless $header_order{$_};
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}
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}
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=item Message::Header->new ([%initial-fields/options])
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Constructs a new C<Message::Headers> object. You might pass some initial
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C<field-name>-C<field-body> pairs and/or options as parameters to the constructor.
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Example:
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$hdr = new Message::Headers
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Date => 'Thu, 03 Feb 1994 00:00:00 +0000',
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Content_Type => 'text/html',
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Content_Location => 'http://www.foo.example/',
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-format => 'mail-rfc2822' ## not to be header field
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;
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=cut
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sub new ($;%) {
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my $class = shift;
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my $self = bless {}, $class;
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$self->_init (@_);
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$self;
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}
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=item Message::Header->parse ($header, [%initial-fields/options])
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Parses given C<header> and constructs a new C<Message::Headers>
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object. You might pass some additional C<field-name>-C<field-body> pairs
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or/and initial options as parameters to the constructor.
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=cut
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sub parse ($$;%) {
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my $class = shift;
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my $header = shift;
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my $self = bless {}, $class;
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$self->_init (@_);
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$header =~ s/\x0D?\x0A$REG{WSP}/\x20/gos; ## unfold
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for my $field (split /\x0D?\x0A/, $header) {
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if ($field =~ /$REG{M_fromline}/) {
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my $body = $1;
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$body = $self->_field_body ($body, 'mail-from')
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if $self->{option}->{parse_all};
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push @{$self->{field}}, {name => 'mail-from', body => $body};
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} elsif ($field =~ /$REG{M_field}/) {
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my ($name, $body) = (lc $1, $2);
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$name =~ s/$REG{WSP}+$//;
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$body =~ s/$REG{WSP}+$//;
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$body = $self->_field_body ($body, $name) if $self->{option}->{parse_all};
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push @{$self->{field}}, {name => $name, body => $body};
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}
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}
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$self;
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}
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=item Message::Header->parse_array (\@header, [%initial-fields/options])
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Parses given C<header> and constructs a new C<Message::Headers>
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object. Same as C<Message::Header-E<lt>parse> but this method
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is given an array reference. You might pass some additional
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C<field-name>-C<field-body> pairs or/and initial options
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as parameters to the constructor.
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=cut
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sub parse_array ($\@;%) {
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my $class = shift;
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my $header = shift;
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Carp::croak "parse_array: first argument is not an array reference"
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unless ref $header eq 'ARRAY';
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my $self = bless {}, $class;
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$self->_init (@_);
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| 261 |
while (1) {
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my $field = shift @$header;
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| 263 |
while (1) {
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| 264 |
if ($$header[0] =~ /^$REG{WSP}/) {
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$field .= shift @$header;
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} else {last}
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}
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$field =~ tr/\x0D\x0A//d; ## BUG: not safe for bar CR/LF
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| 269 |
if ($field =~ /$REG{M_fromline}/) {
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my $body = $1;
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$body = $self->_field_body ($body, 'mail-from')
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if $self->{option}->{parse_all};
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push @{$self->{field}}, {name => 'mail-from', body => $body};
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} elsif ($field =~ /$REG{M_field}/) {
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my ($name, $body) = (lc $1, $2);
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$name =~ s/$REG{WSP}+$//;
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$body =~ s/$REG{WSP}+$//;
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| 278 |
$body = $self->_field_body ($body, $name) if $self->{option}->{parse_all};
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push @{$self->{field}}, {name => $name, body => $body};
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}
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last if $#$header < 0;
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| 282 |
}
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$self;
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}
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=back
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=head1 METHODS
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| 290 |
=head2 $self->field ($field_name)
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| 291 |
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| 292 |
Returns C<field-body> of given C<field-name>.
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| 293 |
When there are two or more C<field>s whose name is C<field-name>,
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| 294 |
this method return all C<field-body>s as array. (On scalar
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| 295 |
context, only first one is returned.)
|
| 296 |
|
| 297 |
=cut
|
| 298 |
|
| 299 |
sub field ($$) {
|
| 300 |
my $self = shift;
|
| 301 |
my $name = lc shift;
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| 302 |
my @ret;
|
| 303 |
for my $field (@{$self->{field}}) {
|
| 304 |
if ($field->{name} eq $name) {
|
| 305 |
unless (wantarray) {
|
| 306 |
$field->{body} = $self->_field_body ($field->{body}, $name);
|
| 307 |
return $field->{body};
|
| 308 |
} else {
|
| 309 |
$field->{body} = $self->_field_body ($field->{body}, $name);
|
| 310 |
push @ret, $field->{body};
|
| 311 |
}
|
| 312 |
}
|
| 313 |
}
|
| 314 |
if ($#ret < 0) {
|
| 315 |
return $self->add ($name);
|
| 316 |
}
|
| 317 |
@ret;
|
| 318 |
}
|
| 319 |
|
| 320 |
sub field_exist ($$) {
|
| 321 |
my $self = shift;
|
| 322 |
my $name = lc shift;
|
| 323 |
my @ret;
|
| 324 |
for my $field (@{$self->{field}}) {
|
| 325 |
return 1 if ($field->{name} eq $name);
|
| 326 |
}
|
| 327 |
0;
|
| 328 |
}
|
| 329 |
|
| 330 |
=head2 $self->field_name ($index)
|
| 331 |
|
| 332 |
Returns C<field-name> of $index'th C<field>.
|
| 333 |
|
| 334 |
=head2 $self->field_body ($index)
|
| 335 |
|
| 336 |
Returns C<field-body> of $index'th C<field>.
|
| 337 |
|
| 338 |
=cut
|
| 339 |
|
| 340 |
sub field_name ($$) {
|
| 341 |
my $self = shift;
|
| 342 |
$self->{field}->[shift]->{name};
|
| 343 |
}
|
| 344 |
sub field_body ($$) {
|
| 345 |
my $self = shift;
|
| 346 |
my $i = shift;
|
| 347 |
$self->{field}->[$i]->{body}
|
| 348 |
= $self->_field_body ($self->{field}->[$i]->{body}, $self->{field}->[$i]->{name});
|
| 349 |
$self->{field}->[$i]->{body};
|
| 350 |
}
|
| 351 |
|
| 352 |
sub _field_body ($$$) {
|
| 353 |
my $self = shift;
|
| 354 |
my ($body, $name) = @_;
|
| 355 |
unless (ref $body) {
|
| 356 |
my $type = $self->{option}->{field_type}->{$name}
|
| 357 |
|| $self->{option}->{field_type}->{':DEFAULT'};
|
| 358 |
eval "require $type" or Carp::croak ("_field_body: $type: $@");
|
| 359 |
unless ($body) {
|
| 360 |
$body = $type->new (-field_name => $name,
|
| 361 |
-format => $self->{option}->{format});
|
| 362 |
} else {
|
| 363 |
$body = $type->parse ($body, -field_name => $name,
|
| 364 |
-format => $self->{option}->{format});
|
| 365 |
}
|
| 366 |
}
|
| 367 |
$body;
|
| 368 |
}
|
| 369 |
|
| 370 |
=head2 $self->field_name_list ()
|
| 371 |
|
| 372 |
Returns list of all C<field-name>s. (Even if there are two
|
| 373 |
or more C<field>s which have same C<field-name>, this method
|
| 374 |
returns ALL names.)
|
| 375 |
|
| 376 |
=cut
|
| 377 |
|
| 378 |
sub field_name_list ($) {
|
| 379 |
my $self = shift;
|
| 380 |
$self->_delete_empty_field ();
|
| 381 |
map {$_->{name}} @{$self->{field}};
|
| 382 |
}
|
| 383 |
|
| 384 |
=head2 $self->add ($field-name, $field-body, [$name, $body, ...])
|
| 385 |
|
| 386 |
Adds an new C<field>. It is not checked whether
|
| 387 |
the field which named $field_body is already exist or not.
|
| 388 |
If you don't want duplicated C<field>s, use C<replace> method.
|
| 389 |
|
| 390 |
Instead of field name-body pair, you might pass some options.
|
| 391 |
Four options are available for this method.
|
| 392 |
|
| 393 |
C<-parse>: Parses and validates C<field-body>, and returns
|
| 394 |
C<field-body> object. (When multiple C<field-body>s are
|
| 395 |
added, returns only last one.) (Default: C<defined wantarray>)
|
| 396 |
|
| 397 |
C<-prepend>: New fields are not appended,
|
| 398 |
but prepended to current fields. (Default: C<0>)
|
| 399 |
|
| 400 |
C<-translate-underscore>: Do C<field-name> =~ tr/_/-/. (Default: C<1>)
|
| 401 |
|
| 402 |
C<-validate>: Checks whether C<field-name> is valid or not.
|
| 403 |
|
| 404 |
=cut
|
| 405 |
|
| 406 |
sub add ($%) {
|
| 407 |
my $self = shift;
|
| 408 |
my %fields = @_;
|
| 409 |
my %option = %{$self->{option}};
|
| 410 |
$option{parse} = defined wantarray unless defined $option{parse};
|
| 411 |
for (grep {/^-/} keys %fields) {$option{substr ($_, 1)} = $fields{$_}}
|
| 412 |
my $body;
|
| 413 |
for (grep {/^[^-]/} keys %fields) {
|
| 414 |
my $name = lc $_; $body = $fields{$_};
|
| 415 |
$name =~ tr/_/-/ if $option{translate_underscore};
|
| 416 |
Carp::croak "add: $name: invalid field-name"
|
| 417 |
if $option{validate} && $name =~ /$REG{UNSAFE_field_name}/;
|
| 418 |
$body = $self->_field_body ($body, $name) if $option{parse};
|
| 419 |
if ($option{prepend}) {
|
| 420 |
unshift @{$self->{field}}, {name => $name, body => $body};
|
| 421 |
} else {
|
| 422 |
push @{$self->{field}}, {name => $name, body => $body};
|
| 423 |
}
|
| 424 |
}
|
| 425 |
$body if $option{parse};
|
| 426 |
}
|
| 427 |
|
| 428 |
=head2 $self->relace ($field_name, $field_body)
|
| 429 |
|
| 430 |
Set the C<field-body> named C<field-name> as $field_body.
|
| 431 |
If $field_name C<field> is already exists, it is replaced
|
| 432 |
by new $field_body value. If not, new C<field> is inserted.
|
| 433 |
(If there are some C<field> named as $field_name,
|
| 434 |
first one is used and the others are not changed.)
|
| 435 |
|
| 436 |
=cut
|
| 437 |
|
| 438 |
sub replace ($%) {
|
| 439 |
my $self = shift;
|
| 440 |
my %params = @_;
|
| 441 |
my %option = %{$self->{option}};
|
| 442 |
$option{parse} = defined wantarray unless defined $option{parse};
|
| 443 |
for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}
|
| 444 |
my (%new_field);
|
| 445 |
for (grep {/^[^-]/} keys %params) {
|
| 446 |
my $name = lc $_;
|
| 447 |
$name =~ tr/_/-/ if $option{translate_underscore};
|
| 448 |
Carp::croak "replace: $name: invalid field-name"
|
| 449 |
if $option{validate} && $name =~ /$REG{UNSAFE_field_name}/;
|
| 450 |
$params{$_} = $self->_field_body ($params{$_}, $name) if $option{parse};
|
| 451 |
$new_field{$name} = $params{$_};
|
| 452 |
}
|
| 453 |
my $body = (%new_field)[-1];
|
| 454 |
for my $field (@{$self->{field}}) {
|
| 455 |
if (defined $new_field{$field->{name}}) {
|
| 456 |
$field->{body} = $new_field {$field->{name}};
|
| 457 |
$new_field{$field->{name}} = undef;
|
| 458 |
}
|
| 459 |
}
|
| 460 |
for (keys %new_field) {
|
| 461 |
push @{$self->{field}}, {name => $_, body => $new_field{$_}};
|
| 462 |
}
|
| 463 |
$body if $option{parse};
|
| 464 |
}
|
| 465 |
|
| 466 |
=head2 $self->delete ($field-name, [$name, ...])
|
| 467 |
|
| 468 |
Deletes C<field> named as $field_name.
|
| 469 |
|
| 470 |
=cut
|
| 471 |
|
| 472 |
sub delete ($@) {
|
| 473 |
my $self = shift;
|
| 474 |
my %delete;
|
| 475 |
for (@_) {$delete{lc $_} = 1}
|
| 476 |
for my $field (@{$self->{field}}) {
|
| 477 |
undef $field if $delete{$field->{name}};
|
| 478 |
}
|
| 479 |
}
|
| 480 |
|
| 481 |
=head2 $self->count ([$field_name])
|
| 482 |
|
| 483 |
Returns the number of times the given C<field> appears.
|
| 484 |
If no $field_name is given, returns the number
|
| 485 |
of fields. (Same as $#$self+1)
|
| 486 |
|
| 487 |
=cut
|
| 488 |
|
| 489 |
sub count ($;$) {
|
| 490 |
my $self = shift;
|
| 491 |
my ($name) = (lc shift);
|
| 492 |
unless ($name) {
|
| 493 |
$self->_delete_empty_field ();
|
| 494 |
return $#{$self->{field}}+1;
|
| 495 |
}
|
| 496 |
my $count = 0;
|
| 497 |
for my $field (@{$self->{field}}) {
|
| 498 |
if ($field->{name} eq $name) {
|
| 499 |
$count++;
|
| 500 |
}
|
| 501 |
}
|
| 502 |
$count;
|
| 503 |
}
|
| 504 |
|
| 505 |
=head2 $self->rename ($field-name, $new-name, [$old, $new,...])
|
| 506 |
|
| 507 |
Renames C<$field-name> as C<$new-name>.
|
| 508 |
|
| 509 |
=cut
|
| 510 |
|
| 511 |
sub rename ($%) {
|
| 512 |
my $self = shift;
|
| 513 |
my %params = @_;
|
| 514 |
my %option = %{$self->{option}};
|
| 515 |
for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}
|
| 516 |
my %new_name;
|
| 517 |
for (grep {/^[^-]/} keys %params) {
|
| 518 |
my ($old => $new) = (lc $_ => lc $params{$_});
|
| 519 |
$new =~ tr/_/-/ if $option{translate_underscore};
|
| 520 |
Carp::croak "rename: $new: invalid field-name"
|
| 521 |
if $option{validate} && $new =~ /$REG{UNSAFE_field_name}/;
|
| 522 |
$new_name{$old} = $new;
|
| 523 |
}
|
| 524 |
for my $field (@{$self->{field}}) {
|
| 525 |
if (length $new_name{$field->{name}}) {
|
| 526 |
$field->{name} = $new_name{$field->{name}};
|
| 527 |
}
|
| 528 |
}
|
| 529 |
$self if defined wantarray;
|
| 530 |
}
|
| 531 |
|
| 532 |
|
| 533 |
=item $self->scan(\&doit)
|
| 534 |
|
| 535 |
Apply a subroutine to each header field in turn. The callback routine is
|
| 536 |
called with two parameters; the name of the field and a single value.
|
| 537 |
If the header has more than one value, then the routine is called once
|
| 538 |
for each value.
|
| 539 |
|
| 540 |
=cut
|
| 541 |
|
| 542 |
sub scan ($&) {
|
| 543 |
my ($self, $sub) = @_;
|
| 544 |
my $sort;
|
| 545 |
$sort = \&_header_cmp if $self->{option}->{sort} eq 'good-practice';
|
| 546 |
$sort = {$a cmp $b} if $self->{option}->{sort} eq 'alphabetic';
|
| 547 |
my @field = @{$self->{field}};
|
| 548 |
if (ref $sort) {
|
| 549 |
@field = sort $sort @{$self->{field}};
|
| 550 |
}
|
| 551 |
for my $field (@field) {
|
| 552 |
next if $field->{name} =~ /^_/;
|
| 553 |
&$sub($field->{name} => $field->{body});
|
| 554 |
}
|
| 555 |
}
|
| 556 |
|
| 557 |
# Compare function which makes it easy to sort headers in the
|
| 558 |
# recommended "Good Practice" order.
|
| 559 |
## taken from HTTP::Header
|
| 560 |
sub _header_cmp
|
| 561 |
{
|
| 562 |
my ($na, $nb) = ($a->{name}, $b->{name});
|
| 563 |
# Unknown headers are assign a large value so that they are
|
| 564 |
# sorted last. This also helps avoiding a warning from -w
|
| 565 |
# about comparing undefined values.
|
| 566 |
$header_order{$na} = 999 unless defined $header_order{$na};
|
| 567 |
$header_order{$nb} = 999 unless defined $header_order{$nb};
|
| 568 |
|
| 569 |
$header_order{$na} <=> $header_order{$nb} || $na cmp $nb;
|
| 570 |
}
|
| 571 |
|
| 572 |
=head2 $self->stringify ([%option])
|
| 573 |
|
| 574 |
Returns the C<header> as a string.
|
| 575 |
|
| 576 |
=cut
|
| 577 |
|
| 578 |
sub stringify ($;%) {
|
| 579 |
my $self = shift;
|
| 580 |
my %params = @_;
|
| 581 |
my %option = %{$self->{option}};
|
| 582 |
for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}
|
| 583 |
my @ret;
|
| 584 |
if ($option{mail_from}) {
|
| 585 |
my $fromline = $self->field ('mail-from');
|
| 586 |
push @ret, 'From '.$fromline if $fromline;
|
| 587 |
}
|
| 588 |
$self->scan (sub {
|
| 589 |
my ($name, $body) = (@_);
|
| 590 |
return unless length $name;
|
| 591 |
return if $option{mail_from} && $name eq 'mail-from';
|
| 592 |
return if !$option{output_bcc} && ($name eq 'bcc' || $name eq 'resent-bcc');
|
| 593 |
my $fbody;
|
| 594 |
if (ref $body) {
|
| 595 |
$fbody = $body->stringify (-format => $option{format});
|
| 596 |
} else {
|
| 597 |
$fbody = $body;
|
| 598 |
}
|
| 599 |
return unless length $fbody;
|
| 600 |
$fbody =~ s/\x0D(?=[^\x09\x0A\x20])/\x0D\x20/g;
|
| 601 |
$fbody =~ s/\x0A(?=[^\x09\x20])/\x0A\x20/g;
|
| 602 |
$name =~ s/((?:^|-)[a-z])/uc($1)/ge if $option{capitalize};
|
| 603 |
push @ret, $name.': '.$self->fold ($fbody);
|
| 604 |
});
|
| 605 |
my $ret = join ("\n", @ret);
|
| 606 |
$ret? $ret."\n": '';
|
| 607 |
}
|
| 608 |
*as_string = \&stringify;
|
| 609 |
|
| 610 |
=head2 $self->option ($option_name, [$option_value])
|
| 611 |
|
| 612 |
Set/gets new value of the option.
|
| 613 |
|
| 614 |
=cut
|
| 615 |
|
| 616 |
sub option ($@) {
|
| 617 |
my $self = shift;
|
| 618 |
if (@_ == 1) {
|
| 619 |
return $self->{option}->{ shift (@_) };
|
| 620 |
}
|
| 621 |
while (my ($name, $value) = splice (@_, 0, 2)) {
|
| 622 |
$name =~ s/^-//;
|
| 623 |
$self->{option}->{$name} = $value;
|
| 624 |
if ($name eq 'format') {
|
| 625 |
for my $f (@{$self->{field}}) {
|
| 626 |
if (ref $f->{body}) {
|
| 627 |
$f->{body}->option (-format => $value);
|
| 628 |
}
|
| 629 |
}
|
| 630 |
}
|
| 631 |
}
|
| 632 |
}
|
| 633 |
|
| 634 |
sub field_type ($$;$) {
|
| 635 |
my $self = shift;
|
| 636 |
my $field_name = shift;
|
| 637 |
my $new_field_type = shift;
|
| 638 |
if ($new_field_type) {
|
| 639 |
$self->{option}->{field_type}->{$field_name} = $new_field_type;
|
| 640 |
}
|
| 641 |
$self->{option}->{field_type}->{$field_name}
|
| 642 |
|| $self->{option}->{field_type}->{':DEFAULT'};
|
| 643 |
}
|
| 644 |
|
| 645 |
sub _delete_empty_field ($) {
|
| 646 |
my $self = shift;
|
| 647 |
my @ret;
|
| 648 |
for my $field (@{$self->{field}}) {
|
| 649 |
push @ret, $field if $field->{name};
|
| 650 |
}
|
| 651 |
$self->{field} = \@ret;
|
| 652 |
$self;
|
| 653 |
}
|
| 654 |
|
| 655 |
sub fold ($$;$) {
|
| 656 |
my $self = shift;
|
| 657 |
my $string = shift;
|
| 658 |
my $len = shift || $self->{option}->{fold_length};
|
| 659 |
$len = 60 if $len < 60;
|
| 660 |
|
| 661 |
## This code is taken from Mail::Header 1.43 in MailTools,
|
| 662 |
## by Graham Barr (Maintained by Mark Overmeer <mailtools@overmeer.net>).
|
| 663 |
my $max = int($len - 5); # 4 for leading spcs + 1 for [\,\;]
|
| 664 |
my $min = int($len * 4 / 5) - 4;
|
| 665 |
my $ml = $len;
|
| 666 |
|
| 667 |
if (length($string) > $ml) {
|
| 668 |
#Split the line up
|
| 669 |
# first bias towards splitting at a , or a ; >4/5 along the line
|
| 670 |
# next split a whitespace
|
| 671 |
# else we are looking at a single word and probably don't want to split
|
| 672 |
my $x = "";
|
| 673 |
$x .= "$1\n "
|
| 674 |
while($string =~ s/^$REG{WSP}*(
|
| 675 |
[^"]{$min,$max}?[\,\;]
|
| 676 |
|[^"]{1,$max}$REG{WSP}
|
| 677 |
|[^\s"]*(?:"[^"]*"[^\s"]*)+$REG{WSP}
|
| 678 |
|[^\s"]+$REG{WSP}
|
| 679 |
)
|
| 680 |
//x);
|
| 681 |
$x .= $string;
|
| 682 |
$string = $x;
|
| 683 |
$string =~ s/(\A$REG{WSP}+|$REG{WSP}+\Z)//sog;
|
| 684 |
$string =~ s/\s+\n/\n/sog;
|
| 685 |
}
|
| 686 |
$string;
|
| 687 |
}
|
| 688 |
|
| 689 |
=head2 $self->clone ()
|
| 690 |
|
| 691 |
Returns a copy of Message::Header object.
|
| 692 |
|
| 693 |
=cut
|
| 694 |
|
| 695 |
sub clone ($) {
|
| 696 |
my $self = shift;
|
| 697 |
my $clone = new Message::Header;
|
| 698 |
for my $name (%{$self->{option}}) {
|
| 699 |
if (ref $self->{option}->{$name} eq 'HASH') {
|
| 700 |
$clone->{option}->{$name} = {%{$self->{option}->{$name}}};
|
| 701 |
} elsif (ref $self->{option}->{$name} eq 'ARRAY') {
|
| 702 |
$clone->{option}->{$name} = [@{$self->{option}->{$name}}];
|
| 703 |
} else {
|
| 704 |
$clone->{option}->{$name} = $self->{option}->{$name};
|
| 705 |
}
|
| 706 |
}
|
| 707 |
for (@{$self->{field}}) {
|
| 708 |
$clone->add ($_->{name}, scalar $_->{body});
|
| 709 |
}
|
| 710 |
$clone;
|
| 711 |
}
|
| 712 |
|
| 713 |
=head1 NOTE
|
| 714 |
|
| 715 |
=head2 C<field-name>
|
| 716 |
|
| 717 |
The header field name is not case sensitive. To make the life
|
| 718 |
easier for perl users who wants to avoid quoting before the => operator,
|
| 719 |
you can use '_' as a synonym for '-' in header field names
|
| 720 |
(this behaviour can be suppressed by setting
|
| 721 |
C<translate_underscore> option to C<0> value).
|
| 722 |
|
| 723 |
=head1 EXAMPLE
|
| 724 |
|
| 725 |
## Print field list
|
| 726 |
|
| 727 |
use Message::Header;
|
| 728 |
my $header = Message::Header->parse ($header);
|
| 729 |
|
| 730 |
for my $i (0..$#$header) {
|
| 731 |
print $header->field_name ($i), "\t=> ", $header->field_body ($i), "\n";
|
| 732 |
}
|
| 733 |
|
| 734 |
|
| 735 |
## Make simple header
|
| 736 |
|
| 737 |
use Message::Header;
|
| 738 |
use Message::Field::Address;
|
| 739 |
my $header = new Message::Header;
|
| 740 |
|
| 741 |
my $from = new Message::Field::Address;
|
| 742 |
$from->add ('foo@foo.example', name => 'F. Foo');
|
| 743 |
my $to = new Message::Field::Address;
|
| 744 |
$to->add ('bar@bar.example', name => 'Mr. Bar');
|
| 745 |
$to->add ('hoge@foo.example', name => 'Hoge-san');
|
| 746 |
$header->add ('From' => $from);
|
| 747 |
$header->add ('To' => $to);
|
| 748 |
$header->add ('Subject' => 'Re: Meeting');
|
| 749 |
$header->add ('References' => '<hoge.msgid%foo@foo.example>');
|
| 750 |
print $header;
|
| 751 |
|
| 752 |
=head1 ACKNOWLEDGEMENTS
|
| 753 |
|
| 754 |
Some of codes are taken from other modules such as
|
| 755 |
HTTP::Header, Mail::Header.
|
| 756 |
|
| 757 |
=head1 LICENSE
|
| 758 |
|
| 759 |
Copyright 2002 wakaba E<lt>w@suika.fam.cxE<gt>.
|
| 760 |
|
| 761 |
This program is free software; you can redistribute it and/or modify
|
| 762 |
it under the terms of the GNU General Public License as published by
|
| 763 |
the Free Software Foundation; either version 2 of the License, or
|
| 764 |
(at your option) any later version.
|
| 765 |
|
| 766 |
This program is distributed in the hope that it will be useful,
|
| 767 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 768 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 769 |
GNU General Public License for more details.
|
| 770 |
|
| 771 |
You should have received a copy of the GNU General Public License
|
| 772 |
along with this program; see the file COPYING. If not, write to
|
| 773 |
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
| 774 |
Boston, MA 02111-1307, USA.
|
| 775 |
|
| 776 |
=head1 CHANGE
|
| 777 |
|
| 778 |
See F<ChangeLog>.
|
| 779 |
$Date: 2002/04/05 14:56:26 $
|
| 780 |
|
| 781 |
=cut
|
| 782 |
|
| 783 |
1;
|
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| 
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