NAME

Mail::Message::Body::Nested - body of a message which contains a message

INHERITANCE

Mail::Message::Body::Nested
  is a Mail::Message::Body
  is a Mail::Reporter

SYNOPSIS

See Mail::Message::Body

if($body->isNested) {
   my $nest = $body->nested;
   $nest->delete;
}

DESCRIPTION

The body (content) of a message can be stored in various ways. In this manual-page you find the description of extra functionality you have when a message contains a nested message, like message/rfc822.

A nested message is different from a multipart message which contains only one element, because a nested message has a full set of message header fields defined by the RFC882, where a part of a multipart has only a few. But because we do not keep track whether all fields are presented, a Mail::Message::Part is used anyway.

WARNING: Since 2023, at least outlook started to interpret RFC6533 incorrectly. Bodies of type 'message/rfc822' can only be 'nested', but when they (illegally) have Content-Transfer-Encoding, they can now behave like normal message parts (the same as a pdf or image).

Extends "DESCRIPTION" in Mail::Message::Body.

OVERLOADED

Extends "OVERLOADED" in Mail::Message::Body.

overload: "": Inherited, see "OVERLOADED" in Mail::Message::Body
overload: '==' and '!=': Inherited, see "OVERLOADED" in Mail::Message::Body
overload: @{}: Inherited, see "OVERLOADED" in Mail::Message::Body
overload: bool: Inherited, see "OVERLOADED" in Mail::Message::Body

METHODS

Extends "METHODS" in Mail::Message::Body.

Constructors

Extends "Constructors" in Mail::Message::Body.

$obj->clone()

Inherited, see "Constructors" in Mail::Message::Body

Mail::Message::Body::Nested->new(%options)

-Option           --Defined in         --Default
 based_on           Mail::Message::Body  undef
 charset            Mail::Message::Body  'PERL'
 checked            Mail::Message::Body  <false>
 content_id         Mail::Message::Body  undef
 data               Mail::Message::Body  undef
 description        Mail::Message::Body  undef
 disposition        Mail::Message::Body  undef
 eol                Mail::Message::Body  'NATIVE'
 file               Mail::Message::Body  undef
 filename           Mail::Message::Body  undef
 log                Mail::Reporter       'WARNINGS'
 message            Mail::Message::Body  undef
 mime_type          Mail::Message::Body  'message/rfc822'
 modified           Mail::Message::Body  <false>
 nested                                  undef
 trace              Mail::Reporter       'WARNINGS'
 transfer_encoding  Mail::Message::Body  'none'

based_on => BODY
charset => CHARSET|'PERL'|<undef>
checked => BOOLEAN
content_id => STRING
data => ARRAY-OF-LINES | STRING
description => STRING|FIELD
disposition => STRING|FIELD
eol => 'CR'|'LF'|'CRLF'|'NATIVE'
file => FILENAME|FILEHANDLE|IOHANDLE
filename => FILENAME
log => LEVEL
message => MESSAGE
mime_type => STRING|FIELD|MIME
modified => BOOLEAN
nested => MESSAGE: The message which is encapsulated within this body.
trace => LEVEL
transfer_encoding => STRING|FIELD

example:

my $msg   = $folder->message(3);
my $encaps= Mail::Message::Body::Nested->new(nested => $msg);

# The body will be coerced into a message, which lacks a few
# lines but we do not bother.
my $intro = Mail::Message::Body->new(data => ...);
my $body  = Mail::Message::Body::Nested->new(nested  => $intro);

Constructing a body

Extends "Constructing a body" in Mail::Message::Body.

$obj->attach($messages, %options): Inherited, see "Constructing a body" in Mail::Message::Body::Construct
$obj->charsetDetect(%options): Inherited, see "Constructing a body" in Mail::Message::Body::Encode
Mail::Message::Body::Nested->charsetDetectAlgorithm( [CODE|undef|METHOD] ): Inherited, see "Constructing a body" in Mail::Message::Body::Encode
$obj->check(): Inherited, see "Constructing a body" in Mail::Message::Body::Encode
$obj->concatenate($components): Inherited, see "Constructing a body" in Mail::Message::Body::Construct
$obj->decoded(%options): Inherited, see "Constructing a body" in Mail::Message::Body
$obj->encode(%options): Inherited, see "Constructing a body" in Mail::Message::Body::Encode
$obj->encoded(%options): Inherited, see "Constructing a body" in Mail::Message::Body::Encode
$obj->eol( ['CR'|'LF'|'CRLF'|'NATIVE'] ): Inherited, see "Constructing a body" in Mail::Message::Body
$obj->foreachLine((CODE)): It is NOT possible to call some code for each line of a nested because that would damage the header of the encapsulated message
$obj->stripSignature(%options): Inherited, see "Constructing a body" in Mail::Message::Body::Construct
$obj->unify($body): Inherited, see "Constructing a body" in Mail::Message::Body::Encode

The body

Extends "The body" in Mail::Message::Body.

$obj->isDelayed(): Inherited, see "The body" in Mail::Message::Body
$obj->isMultipart(): Inherited, see "The body" in Mail::Message::Body
$obj->isNested(): Inherited, see "The body" in Mail::Message::Body
$obj->message( [$message] ): Inherited, see "The body" in Mail::Message::Body
$obj->partNumberOf($part): Inherited, see "The body" in Mail::Message::Body

About the payload

Extends "About the payload" in Mail::Message::Body.

$obj->charset(): Inherited, see "About the payload" in Mail::Message::Body
$obj->checked( [BOOLEAN] ): Inherited, see "About the payload" in Mail::Message::Body
$obj->contentId( [STRING|$field] ): Inherited, see "About the payload" in Mail::Message::Body
$obj->description( [STRING|$field] ): Inherited, see "About the payload" in Mail::Message::Body
$obj->disposition( [STRING|$field] ): Inherited, see "About the payload" in Mail::Message::Body
$obj->dispositionFilename( [$directory] ): Inherited, see "About the payload" in Mail::Message::Body::Encode
$obj->isBinary(): Inherited, see "About the payload" in Mail::Message::Body::Encode
$obj->isText(): Inherited, see "About the payload" in Mail::Message::Body::Encode
$obj->mimeType(): Inherited, see "About the payload" in Mail::Message::Body
$obj->nrLines(): Inherited, see "About the payload" in Mail::Message::Body
$obj->size(): Inherited, see "About the payload" in Mail::Message::Body
$obj->transferEncoding( [STRING|$field] ): Inherited, see "About the payload" in Mail::Message::Body
$obj->type( [STRING|$field] ): Inherited, see "About the payload" in Mail::Message::Body

Access to the payload

Extends "Access to the payload" in Mail::Message::Body.

$obj->endsOnNewline(): Inherited, see "Access to the payload" in Mail::Message::Body
$obj->file(): Inherited, see "Access to the payload" in Mail::Message::Body
$obj->forNested(CODE): Execute the CODE for the nested message. This returns a new nested body object. Returns undef when the CODE returns undef.
$obj->lines(): Inherited, see "Access to the payload" in Mail::Message::Body
$obj->nested(): Returns the Mail::Message::Part message which is enclosed within this body.
$obj->print( [$fh] ): Inherited, see "Access to the payload" in Mail::Message::Body
$obj->printEscapedFrom($fh): Inherited, see "Access to the payload" in Mail::Message::Body
$obj->string(): Inherited, see "Access to the payload" in Mail::Message::Body
$obj->stripTrailingNewline(): Inherited, see "Access to the payload" in Mail::Message::Body
$obj->write(%options): Inherited, see "Access to the payload" in Mail::Message::Body

Internals

Extends "Internals" in Mail::Message::Body.

$obj->addTransferEncHandler( $name, <$class|$object> )
Mail::Message::Body::Nested->addTransferEncHandler( $name, <$class|$object> ): Inherited, see "Internals" in Mail::Message::Body::Encode
$obj->contentInfoFrom($head): Inherited, see "Internals" in Mail::Message::Body
$obj->contentInfoTo($head): Inherited, see "Internals" in Mail::Message::Body
$obj->fileLocation( [$begin, $end] ): Inherited, see "Internals" in Mail::Message::Body
$obj->getTransferEncHandler($type): Inherited, see "Internals" in Mail::Message::Body::Encode
$obj->isModified(): Inherited, see "Internals" in Mail::Message::Body
$obj->load(): Inherited, see "Internals" in Mail::Message::Body
$obj->modified( [BOOLEAN] ): Inherited, see "Internals" in Mail::Message::Body
$obj->moveLocation( [$distance] ): Inherited, see "Internals" in Mail::Message::Body
$obj->read( $parser, $head, $bodytype, [$chars, [$lines]] ): Inherited, see "Internals" in Mail::Message::Body

Error handling

Extends "Error handling" in Mail::Message::Body.

$obj->AUTOLOAD(): Inherited, see "Error handling" in Mail::Message::Body
$obj->addReport($object): Inherited, see "Error handling" in Mail::Reporter
$obj->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
Mail::Message::Body::Nested->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] ): Inherited, see "Error handling" in Mail::Reporter
$obj->errors(): Inherited, see "Error handling" in Mail::Reporter
$obj->log( [$level, [$strings]] )
Mail::Message::Body::Nested->log( [$level, [$strings]] ): Inherited, see "Error handling" in Mail::Reporter
$obj->logPriority($level)
Mail::Message::Body::Nested->logPriority($level): Inherited, see "Error handling" in Mail::Reporter
$obj->logSettings(): Inherited, see "Error handling" in Mail::Reporter
$obj->notImplemented(): Inherited, see "Error handling" in Mail::Reporter
$obj->report( [$level] ): Inherited, see "Error handling" in Mail::Reporter
$obj->reportAll( [$level] ): Inherited, see "Error handling" in Mail::Reporter
$obj->trace( [$level] ): Inherited, see "Error handling" in Mail::Reporter
$obj->warnings(): Inherited, see "Error handling" in Mail::Reporter

Cleanup

Extends "Cleanup" in Mail::Message::Body.

$obj->DESTROY(): Inherited, see "Cleanup" in Mail::Reporter

DETAILS

Extends "DETAILS" in Mail::Message::Body.

DIAGNOSTICS

Warning: Charset $name is not known: The encoding or decoding of a message body encounters a character set which is not understood by Perl's Encode module.
Warning: No decoder defined for transfer encoding $name.: The data (message body) is encoded in a way which is not currently understood, therefore no decoding (or recoding) can take place.
Warning: No encoder defined for transfer encoding $name.: The data (message body) has been decoded, but the required encoding is unknown. The decoded data is returned.
Error: Package $package does not implement $method.: Fatal error: the specific package (or one of its superclasses) does not implement this method where it should. This message means that some other related classes do implement this method however the class at hand does not. Probably you should investigate this and probably inform the author of the package.
Warning: Unknown line terminator $eol ignored
Error: You cannot use foreachLine on a nested: foreachLine() should be used on decoded message bodies only, because it would modify the header of the encapsulated message. which is clearly not acceptable.

LICENSE

Copyrights 2001-2023 by [Mark Overmeer <markov@cpan.org>]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://dev.perl.org/licenses/

To install Mail::Message, copy and paste the appropriate command in to your terminal.

cpanm

cpanm Mail::Message

CPAN shell

perl -MCPAN -e shell
install Mail::Message

For more information on module installation, please visit the detailed CPAN module installation guide.

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