oracular (3) Mail::Message::Body::Multipart.3pm.gz

Provided by: libmail-message-perl_3.015-1_all bug

NAME

       Mail::Message::Body::Multipart - body of a message with attachments

INHERITANCE

        Mail::Message::Body::Multipart
          is a Mail::Message::Body
          is a Mail::Reporter

SYNOPSIS

        See Mail::Message::Body

        if($body->isMultipart) {
           my @attachments = $body->parts;
           my $attachment3 = $body->part(2);
           my $before      = $body->preamble;
           my $after       = $body->epilogue;
           $body->part(1)->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 attachments (parts).

       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::Multipart->new(%options)
            -Option           --Defined in         --Default
             based_on           Mail::Message::Body  undef
             boundary                                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'
             epilogue                                ''
             file               Mail::Message::Body  undef
             filename           Mail::Message::Body  undef
             log                Mail::Reporter       'WARNINGS'
             message            Mail::Message::Body  undef
             mime_type          Mail::Message::Body  'multipart/mixed'
             modified           Mail::Message::Body  <false>
             parts                                   undef
             preamble                                undef
             trace              Mail::Reporter       'WARNINGS'
             transfer_encoding  Mail::Message::Body  'none'

           based_on => BODY
           boundary => STRING
             Separator to be used between parts of the message.  This separator must be unique in case the
             message contains nested multiparts (which are not unusual).  If "undef", a nice unique boundary
             will be generated.

           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'
           epilogue => BODY|STRING
             The text which is included in the main body after the final boundary.  This is usually empty, and
             has no meaning.

             Provide a BODY object or a STRING which will automatically translated into a "text/plain" body.

           file => FILENAME|FILEHANDLE|IOHANDLE
           filename => FILENAME
           log => LEVEL
           message => MESSAGE
           mime_type => STRING|FIELD|MIME
           modified => BOOLEAN
           parts => ARRAY-OF-(MESSAGES|BODIES)
             Specifies an initial list of parts in this body.  These may be full MESSAGES, or BODIES which
             transformed into messages before use.  Each message is coerced into a Mail::Message::Part object.

             MIME::Entity and Mail::Internet objects are acceptable in the list, because they are coercible into
             Mail::Message::Part's.  Values of "undef" will be skipped silently.

           preamble => BODY|STRING
             The text which is included in the body before the first part.  It is common use to include a text
             to warn the user that the message is a multipart.  However, this was useful in earlier days: most
             mail agents are very capable in warning the user themselves.

             Provide a BODY object or a STRING which will automatically translated into a text/plain body.

           trace => LEVEL
           transfer_encoding => STRING|FIELD

           example:

            my $intro = Mail::Message::Body->new(data => ['part one']);
            my $pgp   = Mail::Message::Body->new(data => ['part three']);

            my $body  = Mail::Message::Body::Multipart->new
              ( boundary => time . '--it-s-mine'
              , preamble => "This is a multi-part message in MIME format.\n\n"
              , parts    => [ $intro, $folder->message(3)->decoded, $pgp ]
              );

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

       $obj->attach($messages|$bodies)
           Attach a list of $messages to this multipart.  A new body is returned.  When you specify $bodies,
           they will first be translated into real messages.  MIME::Entity and Mail::Internet objects may be
           specified too.  In any case, the parts will be coerced into Mail::Message::Part's.

       $obj->charsetDetect(%options)
           Inherited, see "Constructing a body" in Mail::Message::Body::Encode

       Mail::Message::Body::Multipart->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->foreachComponent(CODE)
           Execute the CODE for each component of the message: the preamble, the epilogue, and each of the
           parts.

           Each component is a body and is passed as second argument to the CODE.  The first argument is a
           reference to this multi-parted body.  The CODE returns a body object.  When any of the returned
           bodies differs from the body which was passed, then a new multi-part body will be returned.
           Reference to the not-changed bodies and the changed bodies will be included in that new multi-part.

           example:

            my $checked = $multi->foreachComponent(sub {$_[1]->check});

       $obj->foreachLine((CODE))
           It is NOT possible to call some code for each line of a multipart, because that would not only
           inflict damage to the body of each message part, but also to the headers and the part separators.

       $obj->stripSignature(%options)
           Removes all parts which contains data usually defined as being signature.  The MIME::Type module
           provides this knowledge.  A new multipart is returned, containing the remaining parts.  No %options
           are defined yet, although some may be specified, because this method overrules the "stripSignature"
           method for normal bodies.

            -Option     --Defined in                    --Default
             max_lines    Mail::Message::Body::Construct  10
             pattern      Mail::Message::Body::Construct  qr/^--\s?$/
             result_type  Mail::Message::Body::Construct  <same as current>

           max_lines => INTEGER|undef
           pattern => REGEX|STRING|CODE
           result_type => CLASS
       $obj->unify($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->boundary( [STRING] )
           Returns the boundary which is used to separate the parts in this body.  If none was read from file,
           then one will be assigned.  With STRING you explicitly set the boundary to be used.

       $obj->endsOnNewline()
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->epilogue()
           Returns the epilogue; the text after the last message part (after the last real attachment).  The
           epilogue is stored in a BODY object, and its encoding is taken from the general multipart header.

       $obj->file()
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->lines()
           Inherited, see "Access to the payload" in Mail::Message::Body

       $obj->part($index)
           Returns only the part with the specified $index.  You may use a negative value here, which counts
           from the back in the list.  Parts which are flagged to be deleted are included in the count.

           example:

            $message->body->part(2)->print;
            $body->part(1)->delete;

       $obj->parts( [<'ALL'|'ACTIVE'|'DELETED'|'RECURSE'|$filter>] )
           Return all parts by default, or when ALL is specified.  "ACTIVE" returns the parts which are not
           flagged for deletion, as opposite to "DELETED".  "RECURSE" descents into all nested multiparts to
           collect all parts.

           You may also specify a code reference which is called for each nested part.  The first argument will
           be the message part.  When the code returns true, the part is incorporated in the return list.

           example:

            print "Number of attachments: ",
                scalar $message->body->parts('ACTIVE');

            foreach my $part ($message->body->parts) {
                print "Type: ", $part->get('Content-Type');
            }

       $obj->preamble()
           Returns the preamble; the text before the first message part (before the first real attachment).  The
           preamble is stored in a BODY object, and its encoding is taken from the multipart header.

       $obj->print( [$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::Multipart->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, $callback] )
       Mail::Message::Body::Multipart->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->errors()
           Inherited, see "Error handling" in Mail::Reporter

       $obj->log( [$level, [$strings]] )
       Mail::Message::Body::Multipart->log( [$level, [$strings]] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->logPriority($level)
       Mail::Message::Body::Multipart->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.

       Error: Data not convertible to a message (type is $type)
           An object which is not coercable into a Mail::Message::Part object was passed to the initiation.  The
           data is ignored.

       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.

       Error: Unknown criterium $what to select parts.
           Valid choices fdr part selections are "ALL", "ACTIVE", "DELETED", "RECURSE" or a code reference.
           However, some other argument was passed.

       Warning: Unknown line terminator $eol ignored
       Error: You cannot use foreachLine on a multipart
           foreachLine() should be used on decoded message bodies only, because it would attempt to modify part-
           headers and separators as well, which is clearly not acceptable.

SEE ALSO

       This module is part of Mail-Message distribution version 3.015, built on December 11, 2023. Website:
       http://perl.overmeer.net/CPAN/

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/