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Revision 1.40 - (show annotations) (download)
Sat Jul 27 04:44:25 2002 UTC (21 years, 9 months ago) by wakaba
Branch: MAIN
Changes since 1.39: +31 -64 lines
2002-07-26  Wakaba <w@suika.fam.cx>

	* Entity.pm:
	- (fill_missing_fields): New option.
	- (fill_source, fill_destination): New options.
	- (hook_stringify_fill_fields): Option removed.
	* Header.pm:
	- (_header_cmp): Removed.
	- (@header_order, %header_order): Removed.
	- (_scan_sort): Use Message::Header::* namespace packages to sort.

1
2 =head1 NAME
3
4 Message::Header --- A Perl Module for Internet Message Headers
5
6 =cut
7
8 package Message::Header;
9 use strict;
10 use vars qw(%DEFAULT @ISA %REG $VERSION);
11 $VERSION=do{my @r=(q$Revision: 1.40 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
12 require Message::Field::Structured; ## This may seem silly:-)
13 push @ISA, qw(Message::Field::Structured);
14
15 %REG = %Message::Util::REG;
16 $REG{M_field} = qr/^([^\x3A]+):$REG{FWS}([\x00-\xFF]*)$/;
17 $REG{M_fromline} = qr/^\x3E?From$REG{WSP}+([\x00-\xFF]*)$/;
18 $REG{ftext} = qr/[\x21-\x39\x3B-\x7E]+/; ## [2]822
19 $REG{NON_ftext} = qr/[^\x21-\x39\x3B-\x7E]/; ## [2]822
20 $REG{NON_ftext_usefor} = qr/[^0-9A-Za-z-]/; ## name-character
21 $REG{NON_ftext_http} = $REG{NON_http_token};
22
23 ## Namespace support
24 our %NS_phname2uri; ## PH-namespace name -> namespace URI
25 our %NS_uri2package; ## namespace URI -> Package name
26 our %NS_uri2phpackage; ## namespace URI -> PH-Package name
27 require Message::Header::Default; ## Default namespace
28
29 ## Initialize of this class -- called by constructors
30 %DEFAULT = (
31 -_HASH_NAME => 'value',
32 -_METHODS => [qw|field field_exist field_type add replace count delete subject id is|],
33 -_MEMBERS => [qw|value|],
34 -_VALTYPE_DEFAULT => ':default',
35 -by => 'name',
36 -field_format_pattern => '%s: %s',
37 -field_name_case_sensible => 0,
38 -field_name_unsafe_rule => 'NON_ftext',
39 -field_name_validation => 0,
40 -field_sort => 0,
41 -format => 'mail-rfc2822',
42 -header_default_charset => 'iso-2022-int-1',
43 -header_default_charset_input => 'iso-2022-int-1',
44 -hook_init_fill_options => sub {},
45 -hook_stringify_fill_fields => sub {},
46 -linebreak_strict => 0,
47 -line_length_max => 60, ## For folding
48 #ns_default_phuri
49 -output_bcc => 0,
50 -output_folding => 1,
51 -output_mail_from => 0,
52 #parse_all
53 -translate_underscore => 1,
54 #uri_mailto_safe
55 -uri_mailto_safe_level => 4,
56 -use_folding => 1,
57 #value_type
58 );
59
60 =head1 CONSTRUCTORS
61
62 The following methods construct new C<Message::Header> objects:
63
64 =over 4
65
66 =cut
67
68 sub _init ($;%) {
69 my $self = shift;
70 my %options = @_;
71 my $DEFAULT = Message::Util::make_clone (\%DEFAULT);
72 $self->SUPER::_init (%$DEFAULT, %options);
73 $self->{value} = [];
74 $self->_ns_load_ph ('default');
75 $self->_ns_load_ph ('x-rfc822');
76 $self->_ns_load_ph ('x-http');
77 $self->{option}->{ns_default_phuri} = $self->{ns}->{phname2uri}->{'x-rfc822'}
78 unless $self->{option}->{ns_default_phuri};
79
80 ## For text/rfc822-headers
81 if (ref $options{entity_header}) {
82 $self->{entity_header} = $options{entity_header};
83 delete $options{entity_header};
84 }
85 my @new_fields = ();
86 for my $name (keys %options) {
87 unless (substr ($name, 0, 1) eq '-') {
88 push @new_fields, ($name => $options{$name});
89 }
90 }
91 &{ $self->{option}->{hook_init_fill_options} } ($self, $self->{option});
92 $self->_init_by_format ($self->{option}->{format}, $self->{option});
93 $self->add (@new_fields, -parse => $self->{option}->{parse_all})
94 if $#new_fields > -1;
95 }
96
97 sub _init_by_format ($$\%) {
98 my $self = shift;
99 my ($format, $option) = @_;
100 if ($format =~ /http/) {
101 $option->{ns_default_phuri} = $self->{ns}->{phname2uri}->{'x-http'};
102 if ($format =~ /cgi/) {
103 #unshift @header_order, qw(content-type location);
104 $option->{field_sort} = 'good-practice';
105 $option->{use_folding} = 0;
106 } else {
107 $option->{field_sort} = 'good-practice';
108 }
109 } elsif ($format =~ /mail|news|mime/) { ## RFC 822
110 $option->{ns_default_phuri} = $self->{ns}->{phname2uri}->{'x-rfc822'};
111 }
112 if ($format =~ /uri-url-mailto/) {
113 $option->{output_bcc} = 0;
114 $option->{field_format_pattern} = '%s=%s';
115 $option->{output_folding} = sub {
116 $_[1] =~ s/([^:@+\$A-Za-z0-9\-_.!~*])/sprintf('%%%02X', ord $1)/ge;
117 $_[1];
118 }; ## Yes, this is not folding!
119 }
120 }
121
122 =item $msg = Message::Header->new ([%initial-fields/options])
123
124 Constructs a new C<Message::Headers> object. You might pass some initial
125 C<field-name>-C<field-body> pairs and/or options as parameters to the constructor.
126
127 Example:
128
129 $hdr = new Message::Headers
130 Date => 'Thu, 03 Feb 1994 00:00:00 +0000',
131 Content_Type => 'text/html',
132 Content_Location => 'http://www.foo.example/',
133 -format => 'mail-rfc2822' ## not to be header field
134 ;
135
136 =cut
137
138 ## Inherited
139
140 =item $msg = Message::Header->parse ($header, [%initial-fields/options])
141
142 Parses given C<header> and constructs a new C<Message::Headers>
143 object. You might pass some additional C<field-name>-C<field-body> pairs
144 or/and initial options as parameters to the constructor.
145
146 =cut
147
148 sub parse ($$;%) {
149 my $class = shift;
150 my $header = shift;
151 my $self = bless {}, $class;
152 $self->_init (@_);
153 if ($self->{option}->{linebreak_strict}) {
154 $header =~ s/\x0D\x0A$REG{WSP}/\x20/gos if $self->{option}->{use_folding};
155 } else {
156 $header =~ s/\x0D?\x0A$REG{WSP}/\x20/gos if $self->{option}->{use_folding};
157 }
158 my %option = (%{ $self->{option} });
159 $option{parse_all} = 0;
160 for my $field (split /\x0D?\x0A/, $header) {
161 if ($field =~ /$REG{M_fromline}/) {
162 my ($s,undef,$value) = $self->_value_to_arrayitem
163 ('mail-from' => $1, \%option);
164 push @{$self->{value}}, $value if $s;
165 } elsif ($field =~ /$REG{M_field}/) {
166 my ($name, $body) = ($1, $2);
167 $body =~ s/$REG{WSP}+$//;
168 my ($s,undef,$value) = $self->_value_to_arrayitem
169 ($name => $body, \%option);
170 push @{$self->{value}}, $value if $s;
171 } elsif (length $field) {
172 my ($s,undef,$value) = $self->_value_to_arrayitem
173 ('x-unknown' => $field, \%option);
174 push @{$self->{value}}, $value if $s;
175 }
176 }
177 $self->_ns_associate_numerical_prefix; ## RFC 2774 namespace
178 for (@{ $self->{value} }) {
179 no strict 'refs';
180 $_->{name}
181 = &{ ${ &_NS_uri2package ($_->{ns}).'::OPTION' }{n11n_name} }
182 ($self, &_NS_uri2package ($_->{ns}), $_->{name});
183 $_->{body} = $self->_parse_value ($_->{name} => $_->{body}, ns => $_->{ns})
184 if $self->{option}->{parse_all};
185 }
186 $self;
187 }
188
189 =item $msg = Message::Header->parse_array (\@header, [%initial-fields/options])
190
191 Parses given C<header> and constructs a new C<Message::Headers>
192 object. Same as C<Message::Header-E<lt>parse> but this method
193 is given an array reference. You might pass some additional
194 C<field-name>-C<field-body> pairs or/and initial options
195 as parameters to the constructor.
196
197 =cut
198
199 sub parse_array ($\@;%) {
200 my $class = shift;
201 my $header = shift;
202 Carp::croak "parse_array: first argument is not an array reference"
203 unless ref $header eq 'ARRAY';
204 my $self = bless {}, $class;
205 $self->_init (@_);
206 while (1) {
207 my $field = shift @$header;
208 if ($self->{option}->{use_folding}) {
209 while (1) {
210 if ($$header[0] =~ /^$REG{WSP}/) {
211 $field .= shift @$header;
212 } else {last}
213 }
214 }
215 if ($self->{option}->{linebreak_strict}) {
216 $field =~ s/\x0D\x0A//g;
217 } else {
218 $field =~ tr/\x0D\x0A//d;
219 }
220 local $self->{option}->{parse} = $self->{option}->{parse_all};
221 if ($field =~ /$REG{M_fromline}/) {
222 my ($s,undef,$value) = $self->_value_to_arrayitem
223 ('mail-from' => $1, $self->{option});
224 push @{$self->{value}}, $value if $s;
225 } elsif ($field =~ /$REG{M_field}/) {
226 my ($name, $body) = ($self->_n11n_field_name ($1), $2);
227 $body =~ s/$REG{WSP}+$//;
228 my ($s,undef,$value) = $self->_value_to_arrayitem
229 ($name => $body, $self->{option});
230 push @{$self->{value}}, $value if $s;
231 } elsif (length $field) {
232 my ($s,undef,$value) = $self->_value_to_arrayitem
233 ('x-unknown' => $field, $self->{option});
234 push @{$self->{value}}, $value if $s;
235 }
236 last if $#$header < 0;
237 }
238 $self->_ns_associate_numerical_prefix; ## RFC 2774 namespace
239 $self;
240 }
241
242 =back
243
244 =head1 METHODS
245
246 =head2 $self->field ($field_name)
247
248 Returns C<field-body> of given C<field-name>.
249 When there are two or more C<field>s whose name is C<field-name>,
250 this method return all C<field-body>s as array. (On scalar
251 context, only first one is returned.)
252
253 =cut
254
255 sub field ($@) {shift->SUPER::item (@_)}
256 sub field_exist ($@) {shift->SUPER::item_exist (@_)}
257
258 ## item-by?, \$checked-item, {item-key => 1}, \%option
259 sub _item_match ($$\$\%\%) {
260 my $self = shift;
261 my ($by, $i, $list, $option) = @_;
262 return 0 unless ref $$i; ## Already removed
263 if ($by eq 'name') {
264 my %o = %$option; #$o{parse} = 0;
265 my %l;
266 for (keys %$list) {
267 my ($s, undef, $v) = $self->_value_to_arrayitem ($_, '', \%o);
268 if ($s) {
269 $l{$v->{name} . ':' . ( $option->{ns} || $v->{ns} ) } = 1;
270 } else {
271 $l{$v->{name} .':'. ( $option->{ns} || $self->{option}->{ns_default_phuri} ) } = 1;
272 }
273 }
274 return 1 if $l{$$i->{name} . ':' . $$i->{ns}};
275 } elsif ($by eq 'ns') {
276 return 1 if $list->{ $$i->{ns} };
277 } elsif ($by eq 'http-ns-define') {
278 if ($$i->{ns} eq $self->{ns}->{phname2uri}->{'x-http'}
279 || $$i->{ns} eq $self->{ns}->{phname2uri}->{'x-http-c'}) {
280 my $n = $$i->{name};
281 if ($n eq 'opt' || $n eq 'c-opt' || $n eq 'man' || $n eq 'c-man') {
282 $option->{parse} = 0;
283 $$i->{body} = $self->_parse_value ($$i->{name} => $$i->{body}, ns => $$i->{ns});
284 for my $j (0..$$i->{body}->count-1) {
285 return 1 if $list->{ ($$i->{body}->value ($j))[0]->value };
286 }
287 }
288 }
289 }
290 0;
291 }
292 *_delete_match = \&_item_match;
293
294 ## Returns returned item value \$item-value, \%option
295 sub _item_return_value ($\$\%) {
296 if (ref ${$_[1]}->{body}) {
297 ${$_[1]}->{body};
298 } else {
299 ${$_[1]}->{body} = $_[0]->_parse_value (${$_[1]}->{name} => ${$_[1]}->{body},
300 ns => ${$_[1]}->{ns});
301 ${$_[1]}->{body};
302 }
303 }
304 *_add_return_value = \&_item_return_value;
305 *_replace_return_value = \&_item_return_value;
306
307 ## Returns returned (new created) item value $name, \%option
308 sub _item_new_value ($$\%) {
309 my $self = shift;
310 my ($name, $option) = @_;
311 if ($option->{by} eq 'http-ns-define') {
312 my $value = $self->_parse_value (opt => '', ns => $self->{ns}->{phname2uri}->{'x-http'});
313 ($value->value (0))[0]->value ($name);
314 {name => 'opt', body => $value, ns => $self->{ns}->{phname2uri}->{'x-http'}};
315 } else {
316 my ($s,undef,$value) = $self->_value_to_arrayitem
317 ($name => '', $option);
318 $s? $value: undef;
319 }
320 }
321
322
323
324 ## $self->_parse_value ($type, $value, %options);
325 sub _parse_value ($$$;%) {
326 my $self = shift;
327 my $name = shift ;#|| $self->{option}->{_VALTYPE_DEFAULT};
328 my $value = shift; return $value if ref $value;
329 my %option = @_;
330 my $vtype; { no strict 'refs';
331 my $vt = ${&_NS_uri2package ($option{ns}).'::OPTION'}{value_type};
332 if (ref $vt) {
333 $vtype = $vt->{$name} || $vt->{$self->{option}->{_VALTYPE_DEFAULT}};
334 }
335 ## For compatiblity.
336 unless (ref $vtype) { $vtype = $self->{option}->{value_type}->{$name}
337 || $self->{option}->{value_type}->{$self->{option}->{_VALTYPE_DEFAULT}} }
338 }
339 my $vpackage = $vtype->[0];
340 my %vopt = %{$vtype->[1]} if ref $vtype->[1];
341 if ($vpackage eq ':none:') {
342 return $value;
343 } elsif (length $value) {
344 eval "require $vpackage" or Carp::croak qq{<parse>: $vpackage: Can't load package: $@};
345 return $vpackage->parse ($value,
346 -format => $self->{option}->{format},
347 -field_ns => $option{ns},
348 -field_name => $name,
349 -header_default_charset => $self->{option}->{header_default_charset},
350 -header_default_charset_input => $self->{option}->{header_default_charset_input},
351 -internal_charset_name => $self->{option}->{internal_charset_name},
352 -parse_all => $self->{option}->{parse_all},
353 %vopt);
354 } else {
355 eval "require $vpackage" or Carp::croak qq{<parse>: $vpackage: Can't load package: $@};
356 return $vpackage->new (
357 -format => $self->{option}->{format},
358 -field_ns => $option{ns},
359 -field_name => $name,
360 -header_default_charset => $self->{option}->{header_default_charset},
361 -header_default_charset_input => $self->{option}->{header_default_charset_input},
362 -internal_charset_name => $self->{option}->{internal_charset_name},
363 -parse_all => $self->{option}->{parse_all},
364 %vopt);
365 }
366 }
367
368 ## Defined for text/rfc822-headers
369 sub entity_header ($;$) {
370 my $self = shift;
371 my $new_header = shift;
372 if (ref $new_header) {
373 $self->{header} = $new_header;
374 }
375 $self->{header};
376 }
377
378 =head2 $self->field_name_list ()
379
380 Returns list of all C<field-name>s. (Even if there are two
381 or more C<field>s which have same C<field-name>, this method
382 returns ALL names.)
383
384 =cut
385
386 sub field_name_list ($) {
387 my $self = shift;
388 $self->_delete_empty ();
389 map { $_->{name} . ':' . $_->{ns} } @{$self->{value}};
390 }
391
392 sub namespace_ph_default ($;$) {
393 my $self = shift;
394 if (defined $_[0]) {
395 no strict 'refs';
396 $self->{option}->{ns_default_phuri} = $_[0];
397 $self->_ns_load_ph (${&_NS_uri2package ($self->{option}->{ns_default_phuri}).'::OPTION'}{namespace_phname});
398 }
399 $self->{option}->{ns_default_phuri};
400 }
401
402 =item $hdr->add ($field-name, $field-body, [$name, $body, ...])
403
404 Adds some field name/body pairs. Even if there are
405 one or more fields named given C<$field-name>,
406 given name/body pairs are ADDed. Use C<replace>
407 to remove same-name-fields.
408
409 Instead of field name-body pair, you might pass some options.
410 Four options are available for this method.
411
412 C<-parse>: Parses and validates C<field-body>, and returns
413 C<field-body> object. (When multiple C<field-body>s are
414 added, returns only last one.) (Default: C<defined wantarray>)
415
416 C<-prepend>: New fields are not appended,
417 but prepended to current fields. (Default: C<0>)
418
419 C<-translate-underscore>: Do C<field-name> =~ tr/_/-/. (Default: C<1>)
420
421 C<-validate>: Checks whether C<field-name> is valid or not.
422
423 =cut
424
425 ## [Name: Value] pair -> internal array item
426 ## $self->_value_to_arrayitem ($name => $value, {%options})
427 ## or
428 ## $self->_value_to_arrayitem ($name => [$value, %value_options], {%options})
429 ##
430 ## Return: ((1 = success / 0 = failue), $full_name, $arrayitem)
431 sub _value_to_arrayitem ($$$\%) {
432 my $self = shift;
433 my ($name, $value, $option) = @_;
434 my $value_option = {};
435 if (ref $value eq 'ARRAY') {
436 ($value, %$value_option) = @$value;
437 }
438 my $default_ns = $option->{ns_default_phuri};
439 my $nsuri = $default_ns;
440 $name =~ s/^$REG{WSP}+//; $name =~ s/$REG{WSP}+$//;
441
442 no strict 'refs';
443 if ($value_option->{ns}) {
444 $nsuri = $value_option->{ns};
445 } elsif ($option->{ns}) {
446 $nsuri = $option->{ns};
447 } elsif (($default_ns eq $self->{ns}->{phname2uri}->{'x-http'}
448 && $name =~ s/^([0-9]+)-//)
449 || ($name =~ s/^x-http-([0-9]+)-//i)) { ## Numric namespace prefix, RFC 2774
450 my $prefix = 0+$1;
451 $nsuri = $self->{ns}->{number2uri}->{ $prefix };
452 unless ($nsuri) {
453 $self->{ns}->{number2uri}->{ $prefix } = 'urn:x-suika-fam-cx:msgpm:header:x-temp:'.$prefix;
454 $nsuri = $self->{ns}->{number2uri}->{ $prefix };
455 }
456 } elsif (
457 ${ &_NS_uri2package ($default_ns).'::OPTION' }{use_ph_namespace}
458 && (
459 ($name =~ s/^([Xx]-[A-Za-z0-9]+|[A-Za-z]*[A-WYZa-wyz0-9][A-Za-z0-9]*)-
460 ([Xx]-[A-Za-z0-9]+|[A-Za-z0-9]*[A-WYZa-wyz0-9][A-Za-z0-9]*)-//x)
461 || $name =~ s/^([Xx]-[A-Za-z0-9]+|[A-Za-z0-9]*[A-WYZa-wyz0-9][A-Za-z0-9]*)-//
462 )) {
463 my ($prefix1, $prefix2) = ($1, $2);
464 my $original_prefix = $&; my $one_prefix = 0;
465 unless ($prefix2) {
466 $prefix2 = $prefix1;
467 $prefix1 = $self->{ns}->{uri2phname}->{ $default_ns };
468 $one_prefix = 1;
469 }
470 my $prefix
471 = &{ ${ &_NS_uri2package ($nsuri).'::OPTION' }{n11n_prefix} }
472 ($self, &_NS_uri2package ($nsuri), $prefix1.'-'.$prefix2);
473 $self->_ns_load_ph ($prefix);
474 $nsuri = $self->{ns}->{phname2uri}->{ $prefix };
475 unless ($nsuri) {
476 $nsuri = $default_ns;
477 $prefix
478 = &{ ${ &_NS_uri2package ($nsuri).'::OPTION' }{n11n_prefix} }
479 ($self, &_NS_uri2package ($nsuri), $one_prefix? $prefix2:
480 $prefix1);
481 $self->_ns_load_ph ($prefix);
482 $nsuri = $self->{ns}->{phname2uri}->{ $prefix };
483 if ($nsuri) {
484 $name = $prefix2 . '-' . $name unless $one_prefix;
485 } else {
486 unless ($one_prefix) {
487 $prefix
488 = &{ ${ &_NS_uri2package ($nsuri).'::OPTION' }{n11n_prefix} }
489 ($self, &_NS_uri2package ($nsuri),
490 $self->{ns}->{uri2phname}->{ $default_ns } . '-' . $prefix1);
491 $self->_ns_load_ph ($prefix);
492 $nsuri = $self->{ns}->{phname2uri}->{ $prefix };
493 if ($nsuri) {
494 $name = $prefix2 . '-' . $name;
495 }
496 }
497 unless ($nsuri) {
498 $name = $original_prefix . $name;
499 $nsuri = $default_ns;
500 }
501 }
502 }
503 }
504 $name
505 = &{ ${ &_NS_uri2package ($nsuri).'::OPTION' }{n11n_name} }
506 ($self, &_NS_uri2package ($nsuri), $name);
507 Carp::croak "$name: invalid field-name"
508 if $option->{field_name_validation}
509 && $name =~ /$REG{ $option->{field_name_unsafe_rule} }/;
510 $value = $self->_parse_value ($name => $value, ns => $nsuri)
511 if $option->{parse} || $option->{parse_all};
512 $option->{parse} = 0;
513 (1, $name.':'.$nsuri => {name => $name, body => $value, ns => $nsuri});
514 }
515 *_add_hash_check = \&_value_to_arrayitem;
516 *_replace_hash_check = \&_value_to_arrayitem;
517
518 =head2 $self->relace ($field_name, $field_body)
519
520 Set the C<field-body> named C<field-name> as $field_body.
521 If $field_name C<field> is already exists, it is replaced
522 by new $field_body value. If not, new C<field> is inserted.
523 (If there are some C<field> named as $field_name,
524 first one is used and the others are not changed.)
525
526 =cut
527
528 sub _replace_hash_shift ($\%$\%) {
529 shift; my $r = shift; my $n = $_[0]->{name} . ':' . $_[0]->{ns};
530 if ($$r{$n}) {
531 my $d = $$r{$n};
532 delete $$r{$n};
533 return $d;
534 }
535 undef;
536 }
537
538 =head2 $self->delete ($field-name, [$name, ...])
539
540 Deletes C<field> named as $field_name.
541
542 =cut
543
544
545 =head2 $self->count ([$field_name])
546
547 Returns the number of times the given C<field> appears.
548 If no $field_name is given, returns the number
549 of fields. (Same as $#$self+1)
550
551 =cut
552
553 sub _count_by_name ($$\%) {
554 my $self = shift;
555 my ($array, $option) = @_;
556 my $name = $self->_n11n_field_name ($$option{-name});
557 my @a = grep {$_->{name} eq $name} @{$self->{$array}};
558 $#a + 1;
559 }
560
561 ## Delete empty items
562 sub _delete_empty ($) {
563 my $self = shift;
564 my $array = $self->{option}->{_HASH_NAME};
565 $self->{$array} = [grep {ref $_ && length $_->{name}} @{$self->{$array}}];
566 }
567
568 =head2 $self->rename ($field-name, $new-name, [$old, $new,...])
569
570 Renames C<$field-name> as C<$new-name>.
571
572 =cut
573
574 sub rename ($%) {
575 my $self = shift;
576 my %params = @_;
577 my %option = %{$self->{option}};
578 for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}
579 my %new_name;
580 for (grep {/^[^-]/} keys %params) {
581 my ($old => $new)
582 = ($self->_n11n_field_name ($_) => $self->_n11n_field_name ($params{$_}));
583 $old =~ tr/_/-/ if $option{translate_underscore};
584 $new =~ tr/_/-/ if $option{translate_underscore};
585 Carp::croak "rename: $new: invalid field-name"
586 if $option{field_name_validation}
587 && $new =~ /$REG{$option{field_name_unsafe_rule}}/;
588 $new_name{$old} = $new;
589 }
590 for my $field (@{$self->{value}}) {
591 if (length $new_name{$field->{name}}) {
592 $field->{name} = $new_name{$field->{name}};
593 }
594 }
595 $self if defined wantarray;
596 }
597
598
599 =item $self->scan(\&doit)
600
601 Apply a subroutine to each header field in turn. The callback routine is
602 called with two parameters; the name of the field and a single value.
603 If the header has more than one value, then the routine is called once
604 for each value.
605
606 =cut
607
608 sub _scan_sort ($\@\%) {
609 no strict 'refs';
610 my $self = shift;
611 my ($array, $option) = @_;
612 my $nspack = &_NS_uri2package ($self->{option}->{ns_default_phuri});
613 my $sort = ${ $nspack.'::OPTION' }{field_sort};
614 if ($option->{field_sort} eq 'good-practice' && $sort->{'good-practice'}) {
615 return $self->Message::Header::Default::sort_good_practice ($array, $nspack, $option);
616 } elsif ($option->{field_sort} eq 'alphabetic' && $sort->{'alphabetic'}) {
617 ## TODO: How treat namespace prefix?
618 return sort {$a->{name} cmp $b->{name}} @$array;
619 }
620 @$array;
621 }
622
623 sub _n11n_field_name ($$) {
624 no strict 'refs';
625 my $self = shift;
626 my $s = shift;
627 $s =~ s/^$REG{WSP}+//; $s =~ s/$REG{WSP}+$//;
628 $s = lc $s unless ${&_NS_uri2package ($self->{option}->{ns_default_phuri}).'::OPTION'}{case_sensible};
629 $s;
630 }
631
632
633 =head2 $self->stringify ([%option])
634
635 Returns the C<header> as a string.
636
637 =cut
638
639 sub stringify ($;%) {
640 my $self = shift;
641 my %params = @_;
642 my %option = %{$self->{option}};
643 $option{format} = $params{-format} if $params{-format};
644 $self->_init_by_format ($option{format}, \%option)
645 if $self->{option}->{format} ne $option{format};
646 for (grep {/^-/} keys %params) {$option{substr ($_, 1)} = $params{$_}}
647 ## Fill required fields
648 my %exist;
649 for ($self->field_name_list) {$exist{$_} = 1}
650 &{ $option{hook_stringify_fill_fields} } ($self, \%exist, \%option);
651 my @ret;
652 ## RFC 2774 numerical field name prefix
653 my %nprefix;
654 {no strict 'refs';
655 %nprefix = reverse %{ $self->{ns}->{number2uri} };
656 my $i = (sort { $a <=> $b } keys %{ $self->{ns}->{number2uri} })[-1] + 1;
657 $i = 10 if $i < 10;
658 my $hprefix = ${ &_NS_uri2package
659 ($self->{ns}->{phname2uri}->{'x-http'})
660 .'::OPTION' } {namespace_phname_goodcase};
661 for my $uri (keys %nprefix) {
662 if ($nprefix{ $uri } < 10) {
663 $nprefix{ $uri } = $i++;
664 }
665 my $nsfs = $self->item ($uri, -by => 'http-ns-define');
666 for my $i (0..$nsfs->count-1) {
667 my $nsf = ($nsfs->value ($i))[0];
668 if ($nsf->value eq $uri) {
669 $nsf->replace (ns => $nprefix{ $uri });
670 $nprefix{ $uri } = $hprefix . '-' . $nprefix{ $uri };
671 last;
672 }
673 }
674 }
675 }
676 my $_stringify = sub {
677 no strict 'refs';
678 my ($name, $body, $nsuri) = ($_[1]->{name}, $_[1]->{body}, $_[1]->{ns});
679 return unless length $name;
680 return if $option{output_mail_from} && $name eq 'mail-from';
681 $body = '' if !$option{output_bcc} && $name eq 'bcc';
682 my $nspackage = &_NS_uri2package ($nsuri);
683 my $oname; ## Outputed field-name
684 my $prefix = $nprefix{ $nsuri }
685 || ${$nspackage.'::OPTION'} {namespace_phname_goodcase}
686 || $self->{ns}->{uri2phname}->{ $nsuri };
687 my $default_prefix = ${ &_NS_uri2package ($option{ns_default_phuri})
688 .'::OPTION'} {namespace_phname_goodcase};
689 $prefix = '' if $prefix eq $default_prefix;
690 $prefix =~ s/^\Q$default_prefix\E-//;
691 my $gc = ${$nspackage.'::OPTION'} {to_be_goodcase};
692 if (ref $gc) { $oname = &$gc ($self, $nspackage, $name, \%option) }
693 else { $oname = $name }
694 if ($prefix) { $oname = $prefix . '-' . $oname }
695 if ($option{format} =~ /uri-url-mailto/) {
696 return if (( ${$nspackage.'::OPTION'} {uri_mailto_safe}->{$name}
697 || ${$nspackage.'::OPTION'} {uri_mailto_safe}->{':default'})
698 < $option{uri_mailto_safe_level});
699 if ($name eq 'to') {
700 $body = $self->field ('to', -new_item_unless_exist => 0);
701 if (ref $body && $body->have_group) {
702 #
703 } elsif (ref $body && $body->count > 1) {
704 $body = $body->clone;
705 $body->delete ({-by => 'index'}, 0);
706 }
707 }
708 }
709 my $fbody;
710 if (ref $body) {
711 $fbody = $body->stringify (-format => $option{format});
712 } else {
713 $fbody = $body;
714 }
715 unless (${$nspackage.'::OPTION'} {field}->{$name}->{empty_body}) {
716 return unless length $fbody;
717 }
718 unless ($option{linebreak_strict}) {
719 ## bare \x0D and bare \x0A are unsafe
720 $fbody =~ s/\x0D(?=[^\x09\x0A\x20])/\x0D\x20/g;
721 $fbody =~ s/\x0A(?=[^\x09\x20])/\x0A\x20/g;
722 } else {
723 $fbody =~ s/\x0D\x0A(?=[^\x09\x20])/\x0D\x0A\x20/g;
724 }
725 if ($option{use_folding}) {
726 if (ref $option{output_folding}) {
727 $fbody = &{$option{output_folding}} ($self, $fbody,
728 -initial_length => length ($oname) +2);
729 } elsif ($option{output_folding}) {
730 $fbody = $self->_fold ($fbody, -initial_length => length ($oname) +2);
731 }
732 }
733 push @ret, sprintf $option{field_format_pattern}, $oname, $fbody;
734 };
735 if ($option{format} =~ /uri-url-mailto/) {
736 if ($option{format} =~ /uri-url-mailto-to/) {
737 my $to = $self->field ('to', -new_item_unless_exist => 0);
738 if ($to) {
739 unless ($to->have_group) {
740 my $fbody = $to->stringify (-format => $option{format}, -max => 1);
741 return &{$option{output_folding}} ($self, $fbody);
742 }
743 }
744 '';
745 } elsif ($option{format} =~ /uri-url-mailto-rfc1738/) {
746 my $to = $self->field ('to', -new_item_unless_exist => 0);
747 if ($to) {
748 my $fbody = $to->addr_spec (-format => $option{format});
749 return &{$option{output_folding}} ($self, $fbody);
750 }
751 '';
752 } else {
753 $self->scan ($_stringify);
754 my $ret = join ('&', @ret);
755 $ret;
756 }
757 } else {
758 if ($option{output_mail_from}) {
759 my $fromline = $self->field ('mail-from', -new_item_unless_exist => 0);
760 push @ret, 'From '.$fromline if $fromline;
761 }
762 $self->scan ($_stringify);
763 my $ret = join ("\x0D\x0A", @ret);
764 $ret? $ret."\x0D\x0A": '';
765 }
766 }
767 *as_string = \&stringify;
768
769 =head2 $self->option ($option_name, [$option_value])
770
771 Set/gets new value of the option.
772
773 =cut
774
775 sub option ($@) {
776 my $self = shift;
777 if (@_ == 1) {
778 return $self->{option}->{ shift (@_) };
779 }
780 while (my ($name, $value) = splice (@_, 0, 2)) {
781 $self->{option}->{$name} = $value;
782 if ($name eq 'format') {
783 for my $f (@{$self->{field}}) {
784 if (ref $f->{body}) {
785 $f->{body}->option (-format => $value);
786 }
787 }
788 }
789 }
790 }
791
792 sub field_type ($@) {shift->SUPER::value_type (@_)}
793
794 ## $self->_fold ($string, %option = (-max, -initial_length(for field-name)) )
795 sub _fold ($$;%) {
796 my $self = shift;
797 my $string = shift;
798 my %option = @_;
799 my $max = $self->{option}->{line_length_max};
800 $max = 20 if $max < 20;
801
802 my $l = $option{-initial_length} || 0;
803 $l += length $1 if $string =~ /^([^\x09\x20]+)/;
804 $string =~ s{([\x09\x20][^\x09\x20]+)}{
805 my $s = $1;
806 if (($l + length $s) > $max) {
807 $s = "\x0D\x0A\x20" . $s;
808 $l = 1 + length $s;
809 } else { $l += length $s }
810 $s;
811 }gex;
812 $string;
813 }
814
815 sub _ns_load_ph ($$) {
816 my $self = shift;
817 my $name = shift; ## normalized prefix (without HYPHEN-MINUS)
818 return if $self->{ns}->{phname2uri}->{$name};
819 $self->{ns}->{phname2uri}->{$name} = $NS_phname2uri{$name};
820 $self->{ns}->{uri2phname}->{ $self->{ns}->{phname2uri}->{$name} } = $name;
821 }
822
823 sub _ns_associate_numerical_prefix ($) {
824 my $self = shift;
825 $self->scan (sub {shift;
826 my $f = shift; return unless $f->{name};
827 if ($f->{ns} eq $self->{ns}->{phname2uri}->{'x-http'}
828 || $f->{ns} eq $self->{ns}->{phname2uri}->{'x-http-c'}) {
829 my $fn = $f->{name};
830 if ($fn eq 'opt' || $fn eq 'man') {
831 $f->{body} = $self->_parse_value ($fn => $f->{body}, ns => $f->{ns});
832 for ($f->{body}->value (0..$f->{body}->count-1)) {
833 my ($nsuri, $number) = ($_->value, $_->item ('ns'));
834 if ($number && $nsuri) {
835 $self->{ns}->{number2uri}->{ $number } = $nsuri;
836 }
837 }
838 }
839 }
840 });
841 $self->scan (sub {shift;
842 my $f = shift;
843 if ($f->{ns} =~ /urn:x-suika-fam-cx:msgpm:header:x-temp:([0-9]+)$/ && $self->{ns}->{number2uri}->{ $1 }) {
844 $f->{ns} = $self->{ns}->{number2uri}->{ $1 };
845 }
846 });
847 }
848
849 ## $package_name = Message::Header::_NS_uri2phpackage ($nsuri)
850 ## (For internal use of Message::* modules)
851 sub _NS_uri2phpackage ($) {
852 $NS_uri2phpackage{$_[0]}
853 || $NS_uri2phpackage{$Message::Header::Default::OPTION{namespace_uri}};
854 }
855 sub _NS_uri2package ($) {
856 $NS_uri2package{$_[0]}
857 || $NS_uri2phpackage{$_[0]}
858 || $NS_uri2phpackage{$Message::Header::Default::OPTION{namespace_uri}};
859 }
860
861 =head2 $self->clone ()
862
863 Returns a copy of Message::Header object.
864
865 =cut
866
867 ## Inhreited
868
869 =head1 NOTE
870
871 =head2 C<field-name>
872
873 The header field name is not case sensitive. To make the life
874 easier for perl users who wants to avoid quoting before the => operator,
875 you can use '_' as a synonym for '-' in header field names
876 (this behaviour can be suppressed by setting
877 C<translate_underscore> option to C<0> value).
878
879 =head1 EXAMPLE
880
881 ## Print field list
882
883 use Message::Header;
884 my $header = Message::Header->parse ($header);
885
886 for my $i (0..$#$header) {
887 print $header->field_name ($i), "\t=> ", $header->field_body ($i), "\n";
888 }
889
890
891 ## Make simple header
892
893 use Message::Header;
894 use Message::Field::Address;
895 my $header = new Message::Header;
896
897 my $from = new Message::Field::Address;
898 $from->add ('foo@foo.example', name => 'F. Foo');
899 my $to = new Message::Field::Address;
900 $to->add ('bar@bar.example', name => 'Mr. Bar');
901 $to->add ('hoge@foo.example', name => 'Hoge-san');
902 $header->add ('From' => $from);
903 $header->add ('To' => $to);
904 $header->add ('Subject' => 'Re: Meeting');
905 $header->add ('References' => '<hoge.msgid%foo@foo.example>');
906 print $header;
907
908 =head1 ACKNOWLEDGEMENTS
909
910 Some of codes are taken from other modules such as
911 HTTP::Header, Mail::Header.
912
913 =head1 LICENSE
914
915 Copyright 2002 wakaba E<lt>w@suika.fam.cxE<gt>.
916
917 This program is free software; you can redistribute it and/or modify
918 it under the terms of the GNU General Public License as published by
919 the Free Software Foundation; either version 2 of the License, or
920 (at your option) any later version.
921
922 This program is distributed in the hope that it will be useful,
923 but WITHOUT ANY WARRANTY; without even the implied warranty of
924 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
925 GNU General Public License for more details.
926
927 You should have received a copy of the GNU General Public License
928 along with this program; see the file COPYING. If not, write to
929 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
930 Boston, MA 02111-1307, USA.
931
932 =head1 CHANGE
933
934 See F<ChangeLog>.
935 $Date: 2002/07/27 04:44:25 $
936
937 =cut
938
939 1;

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