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wakaba |
1.1 |
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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($VERSION %REG %DEFAULT);
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$VERSION = '1.00';
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use overload '@{}' => sub {shift->_delete_empty_field()->{field}},
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'""' => sub {shift->stringify};
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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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%DEFAULT = (
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capitalize => 1,
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fold_length => 70,
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mail_from => 0,
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wakaba |
1.4 |
field_type => {_DEFAULT => 'Message::Field::Unstructured'},
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wakaba |
1.1 |
);
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wakaba |
1.4 |
my @field_type_Structured = qw(cancel-lock content-language
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content-transfer-encoding
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encrypted importance mime-version precedence user-agent x-cite
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x-face x-mail-count
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x-msmail-priority x-priority x-uidl xref);
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for (@field_type_Structured)
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Structured'}
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my @field_type_Address = qw(approved bcc cc delivered-to envelope-to
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errors-to from mail-followup-to reply-to resent-bcc
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resent-cc resent-to resent-from resent-sender return-path
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return-receipt-to sender to x-approved x-beenthere
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x-complaints-to x-envelope-from x-envelope-sender
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x-envelope-to x-ml-address x-ml-command x-ml-to);
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for (@field_type_Address)
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Address'}
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my @field_type_Date = qw(date date-received delivery-date expires
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expire-date nntp-posting-date posted reply-by resent-date x-tcup-date);
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for (@field_type_Date)
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Date'}
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my @field_type_MsgID = qw(content-id in-reply-to message-id
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references resent-message-id supersedes);
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for (@field_type_MsgID)
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Structured'}
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my @field_type_Received = qw(received x-received);
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for (@field_type_Received)
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Structured'}
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my @field_type_Param = qw(content-disposition content-type
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x-brother x-daughter x-face-type x-respect x-moe
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x-syster x-wife);
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for (@field_type_Param)
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Structured'}
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my @field_type_URI = qw(list-archive list-help list-owner
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list-post list-subscribe list-unsubscribe uri url x-home-page x-http_referer
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x-info x-pgp-key x-ml-url x-uri x-url x-web);
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for (@field_type_URI)
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Structured'}
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my @field_type_ListID = qw(list-id);
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for (@field_type_ListID)
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{$DEFAULT{field_type}->{$_} = 'Message::Field::Structured'}
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wakaba |
1.1 |
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=head2 Message::Header->new ([%option])
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Returns new Message::Header instance. Some options can be
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specified as hash.
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=cut
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sub new ($;%) {
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my $class = shift;
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my $self = bless {option => {@_}}, $class;
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for (keys %DEFAULT) {$self->{option}->{$_} ||= $DEFAULT{$_}}
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$self;
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}
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=head2 Message::Header->parse ($header, [%option])
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Parses given C<header> and return a new Message::Header
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object. Some options can be specified as hash.
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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 {option => {@_}}, $class;
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for (keys %DEFAULT) {$self->{option}->{$_} ||= $DEFAULT{$_}}
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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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push @{$self->{field}}, {name => 'mail-from', body => $1};
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} elsif ($field =~ /$REG{M_field}/) {
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my ($name, $body) = ($1, $2);
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$name =~ s/$REG{WSP}+$//;
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$body =~ s/$REG{WSP}+$//;
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push @{$self->{field}}, {name => lc $name, body => $body};
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}
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}
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$self;
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}
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=head2 $self->field ($field_name)
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Returns C<field-body> of given C<field-name>.
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When there are two or more C<field>s whose name is C<field-name>,
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this method return all C<field-body>s as array. (On scalar
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context, only first one is returned.)
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=cut
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sub field ($$) {
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my $self = shift;
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my $name = lc shift;
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my @ret;
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for my $field (@{$self->{field}}) {
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if ($field->{name} eq $name) {
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unless (wantarray) {
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wakaba |
1.4 |
return $self->_field_body ($field->{body}, $name);
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wakaba |
1.1 |
} else {
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wakaba |
1.4 |
push @ret, $self->_field_body ($field->{body}, $name);
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wakaba |
1.1 |
}
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}
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}
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@ret;
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}
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wakaba |
1.2 |
=head2 $self->field_name ($index)
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Returns C<field-name> of $index'th C<field>.
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=head2 $self->field_body ($index)
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Returns C<field-body> of $index'th C<field>.
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=cut
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sub field_name ($$) {
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my $self = shift;
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$self->{field}->[shift]->{name};
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}
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sub field_body ($$) {
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my $self = shift;
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wakaba |
1.4 |
my $i = shift;
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$self->_field_body ($self->{field}->[$i]->{body}, $self->{field}->[$i]->{name});
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}
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sub _field_body ($$$) {
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my $self = shift;
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my ($body, $name) = @_;
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if (ref $body) {
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return $body;
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} else {
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my $type = $self->{option}->{field_type}->{$name}
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|| $self->{option}->{field_type}->{_DEFAULT};
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eval "use $type";
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return $type->parse ($body);
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}
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wakaba |
1.2 |
}
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wakaba |
1.1 |
=head2 $self->field_name_list ()
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Returns list of all C<field-name>s. (Even if there are two
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or more C<field>s which have same C<field-name>, this method
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returns ALL names.)
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=cut
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sub field_name_list ($) {
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my $self = shift;
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$self->_delete_empty_field ();
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map {$_->{name}} @{$self->{field}};
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}
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=head2 $self->add ($field_name, $field_body)
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Adds an new C<field>. It is not checked whether
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the field which named $field_body is already exist or not.
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If you don't want duplicated C<field>s, use C<replace> method.
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=cut
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sub add ($$$) {
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my $self = shift;
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my ($name, $body) = (lc shift, shift);
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return 0 if $name =~ /$REG{UNSAFE_field_name}/;
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push @{$self->{field}}, {name => $name, body => $body};
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$self;
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}
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=head2 $self->relace ($field_name, $field_body)
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Set the C<field-body> named C<field-name> as $field_body.
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If $field_name C<field> is already exists, it is replaced
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by new $field_body value. If not, new C<field> is inserted.
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(If there are some C<field> named as $field_name,
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first one is used and the others are not changed.)
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=cut
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sub replace ($$$) {
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my $self = shift;
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my ($name, $body) = (lc shift, shift);
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return 0 if $name =~ /$REG{UNSAFE_field_name}/;
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for my $field (@{$self->{field}}) {
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if ($field->{name} eq $name) {
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$field->{body} = $body;
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return $self;
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}
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}
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push @{$self->{field}}, {name => $name, body => $body};
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$self;
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}
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| 244 |
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=head2 $self->delete ($field_name, [$index])
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| 246 |
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Deletes C<field> named as $field_name.
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If $index is specified, only $index'th C<field> is deleted.
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If not, ($index == 0), all C<field>s that have the C<field-name>
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$field_name are deleted.
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=cut
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| 254 |
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sub delete ($$;$) {
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my $self = shift;
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my ($name, $index) = (lc shift, shift);
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my $i = 0;
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for my $field (@{$self->{field}}) {
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| 259 |
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if ($field->{name} eq $name) {
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$i++;
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if ($index == 0 || $i == $index) {
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undef $field;
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| 263 |
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return $self if $i == $index;
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}
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}
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| 266 |
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}
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| 267 |
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$self;
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}
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| 270 |
wakaba |
1.2 |
=head2 $self->count ([$field_name])
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| 271 |
wakaba |
1.1 |
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Returns the number of times the given C<field> appears.
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| 273 |
wakaba |
1.2 |
If no $field_name is given, returns the number
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of fields. (Same as $#$self+1)
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| 275 |
wakaba |
1.1 |
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=cut
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| 277 |
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| 278 |
wakaba |
1.2 |
sub count ($;$) {
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| 279 |
wakaba |
1.1 |
my $self = shift;
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| 280 |
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my ($name) = (lc shift);
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| 281 |
wakaba |
1.2 |
unless ($name) {
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| 282 |
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$self->_delete_empty_field ();
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| 283 |
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return $#{$self->{field}}+1;
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| 284 |
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}
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| 285 |
wakaba |
1.1 |
my $count = 0;
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| 286 |
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for my $field (@{$self->{field}}) {
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| 287 |
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if ($field->{name} eq $name) {
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| 288 |
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$count++;
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| 289 |
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}
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| 290 |
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}
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| 291 |
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$count;
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| 292 |
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}
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| 293 |
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| 294 |
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=head2 $self->stringify ([%option])
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| 295 |
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| 296 |
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Returns the C<header> as a string.
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| 297 |
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| 298 |
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=cut
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| 299 |
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|
| 300 |
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sub stringify ($;%) {
|
| 301 |
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my $self = shift;
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| 302 |
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my %OPT = @_;
|
| 303 |
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my @ret;
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| 304 |
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$OPT{capitalize} ||= $self->{option}->{capitalize};
|
| 305 |
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$OPT{mail_from} ||= $self->{option}->{mail_from};
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| 306 |
|
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push @ret, 'From '.$self->field ('mail-from') if $OPT{mail_from};
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| 307 |
|
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for my $field (@{$self->{field}}) {
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| 308 |
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my $name = $field->{name};
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| 309 |
|
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next unless $field->{name};
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| 310 |
|
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next if !$OPT{mail_from} && $name eq 'mail-from';
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| 311 |
|
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$name =~ s/((?:^|-)[a-z])/uc($1)/ge if $OPT{capitalize};
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| 312 |
|
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push @ret, $name.': '.$self->fold ($field->{body});
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| 313 |
|
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}
|
| 314 |
wakaba |
1.3 |
my $ret = join ("\n", @ret);
|
| 315 |
|
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$ret? $ret."\n": "";
|
| 316 |
wakaba |
1.1 |
}
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| 317 |
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| 318 |
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=head2 $self->get_option ($option_name)
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| 319 |
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| 320 |
|
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Returns value of the option.
|
| 321 |
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| 322 |
|
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=head2 $self->set_option ($option_name, $option_value)
|
| 323 |
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|
| 324 |
|
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Set new value of the option.
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| 325 |
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| 326 |
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=cut
|
| 327 |
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|
| 328 |
|
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sub get_option ($$) {
|
| 329 |
|
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my $self = shift;
|
| 330 |
|
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my ($name) = @_;
|
| 331 |
|
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$self->{option}->{$name};
|
| 332 |
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}
|
| 333 |
|
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sub set_option ($$$) {
|
| 334 |
|
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my $self = shift;
|
| 335 |
|
|
my ($name, $value) = @_;
|
| 336 |
|
|
$self->{option}->{$name} = $value;
|
| 337 |
|
|
$self;
|
| 338 |
|
|
}
|
| 339 |
|
|
|
| 340 |
wakaba |
1.4 |
sub field_type ($$;$) {
|
| 341 |
|
|
my $self = shift;
|
| 342 |
|
|
my $field_name = shift;
|
| 343 |
|
|
my $new_field_type = shift;
|
| 344 |
|
|
if ($new_field_type) {
|
| 345 |
|
|
$self->{option}->{field_type}->{$field_name} = $new_field_type;
|
| 346 |
|
|
}
|
| 347 |
|
|
$self->{option}->{field_type}->{$field_name}
|
| 348 |
|
|
|| $self->{option}->{field_type}->{_DEFAULT};
|
| 349 |
|
|
}
|
| 350 |
|
|
|
| 351 |
wakaba |
1.1 |
sub _delete_empty_field ($) {
|
| 352 |
|
|
my $self = shift;
|
| 353 |
|
|
my @ret;
|
| 354 |
|
|
for my $field (@{$self->{field}}) {
|
| 355 |
|
|
push @ret, $field if $field->{name};
|
| 356 |
|
|
}
|
| 357 |
|
|
$self->{field} = \@ret;
|
| 358 |
|
|
$self;
|
| 359 |
|
|
}
|
| 360 |
|
|
|
| 361 |
|
|
sub fold ($$;$) {
|
| 362 |
|
|
my $self = shift;
|
| 363 |
|
|
my $string = shift;
|
| 364 |
|
|
my $len = shift || $self->{option}->{fold_length};
|
| 365 |
|
|
$len = 60 if $len < 60;
|
| 366 |
|
|
|
| 367 |
|
|
## This code is taken from Mail::Header 1.43 in MailTools,
|
| 368 |
|
|
## by Graham Barr (Maintained by Mark Overmeer <mailtools@overmeer.net>).
|
| 369 |
|
|
my $max = int($len - 5); # 4 for leading spcs + 1 for [\,\;]
|
| 370 |
|
|
my $min = int($len * 4 / 5) - 4;
|
| 371 |
|
|
my $ml = $len;
|
| 372 |
|
|
|
| 373 |
|
|
if (length($string) > $ml) {
|
| 374 |
|
|
#Split the line up
|
| 375 |
|
|
# first bias towards splitting at a , or a ; >4/5 along the line
|
| 376 |
|
|
# next split a whitespace
|
| 377 |
|
|
# else we are looking at a single word and probably don't want to split
|
| 378 |
|
|
my $x = "";
|
| 379 |
|
|
$x .= "$1\n "
|
| 380 |
|
|
while($string =~ s/^$REG{WSP}*(
|
| 381 |
|
|
[^"]{$min,$max}?[\,\;]
|
| 382 |
|
|
|[^"]{1,$max}$REG{WSP}
|
| 383 |
|
|
|[^\s"]*(?:"[^"]*"[^\s"]*)+$REG{WSP}
|
| 384 |
|
|
|[^\s"]+$REG{WSP}
|
| 385 |
|
|
)
|
| 386 |
|
|
//x);
|
| 387 |
|
|
$x .= $string;
|
| 388 |
|
|
$string = $x;
|
| 389 |
|
|
$string =~ s/(\A$REG{WSP}+|$REG{WSP}+\Z)//sog;
|
| 390 |
|
|
$string =~ s/\s+\n/\n/sog;
|
| 391 |
|
|
}
|
| 392 |
|
|
$string;
|
| 393 |
|
|
}
|
| 394 |
|
|
|
| 395 |
|
|
=head1 EXAMPLE
|
| 396 |
|
|
|
| 397 |
|
|
## Print field list
|
| 398 |
|
|
|
| 399 |
|
|
use Message::Header;
|
| 400 |
|
|
my $header = Message::Header->parse ($header);
|
| 401 |
|
|
|
| 402 |
wakaba |
1.2 |
## Next sample is better.
|
| 403 |
|
|
#for my $field (@$header) {
|
| 404 |
|
|
# print $field->{name}, "\t=> ", $field->{body}, "\n";
|
| 405 |
|
|
#}
|
| 406 |
|
|
|
| 407 |
|
|
for my $i (0..$#$header) {
|
| 408 |
|
|
print $header->field_name ($i), "\t=> ", $header->field_body ($i), "\n";
|
| 409 |
wakaba |
1.1 |
}
|
| 410 |
|
|
|
| 411 |
|
|
|
| 412 |
|
|
## Make simple header
|
| 413 |
|
|
|
| 414 |
wakaba |
1.2 |
use Message::Header;
|
| 415 |
wakaba |
1.1 |
use Message::Field::Address;
|
| 416 |
|
|
my $header = new Message::Header;
|
| 417 |
|
|
|
| 418 |
|
|
my $from = new Message::Field::Address;
|
| 419 |
|
|
$from->add ('foo@foo.example', name => 'F. Foo');
|
| 420 |
|
|
my $to = new Message::Field::Address;
|
| 421 |
|
|
$to->add ('bar@bar.example', name => 'Mr. Bar');
|
| 422 |
|
|
$to->add ('hoge@foo.example', name => 'Hoge-san');
|
| 423 |
|
|
$header->add ('From' => $from);
|
| 424 |
|
|
$header->add ('To' => $to);
|
| 425 |
|
|
$header->add ('Subject' => 'Re: Meeting');
|
| 426 |
|
|
$header->add ('References' => '<hoge.msgid%foo@foo.example>');
|
| 427 |
|
|
print $header;
|
| 428 |
|
|
|
| 429 |
|
|
=head1 LICENSE
|
| 430 |
|
|
|
| 431 |
|
|
Copyright 2002 wakaba E<lt>w@suika.fam.cxE<gt>.
|
| 432 |
|
|
|
| 433 |
|
|
This program is free software; you can redistribute it and/or modify
|
| 434 |
|
|
it under the terms of the GNU General Public License as published by
|
| 435 |
|
|
the Free Software Foundation; either version 2 of the License, or
|
| 436 |
|
|
(at your option) any later version.
|
| 437 |
|
|
|
| 438 |
|
|
This program is distributed in the hope that it will be useful,
|
| 439 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 440 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 441 |
|
|
GNU General Public License for more details.
|
| 442 |
|
|
|
| 443 |
|
|
You should have received a copy of the GNU General Public License
|
| 444 |
|
|
along with this program; see the file COPYING. If not, write to
|
| 445 |
|
|
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
| 446 |
|
|
Boston, MA 02111-1307, USA.
|
| 447 |
|
|
|
| 448 |
|
|
=head1 CHANGE
|
| 449 |
|
|
|
| 450 |
|
|
See F<ChangeLog>.
|
| 451 |
wakaba |
1.4 |
$Date: 2002/03/16 08:54:39 $
|
| 452 |
wakaba |
1.1 |
|
| 453 |
|
|
=cut
|
| 454 |
|
|
|
| 455 |
|
|
1;
|
Parent Directory
| 
Revision Log