NAME

Mail::Message::TransferEnc::Base64 - encode/decode base64 message bodies

INHERITANCE

Mail::Message::TransferEnc::Base64
  is a Mail::Message::TransferEnc
  is a Mail::Reporter

SYNOPSIS

my Mail::Message $msg = ...;
my $decoded = $msg->decoded;
my $encoded = $msg->encode(transfer => 'base64');

DESCRIPTION

Encode or decode message bodies with base64. The e-mail protocol and user agents can not handle binary data. Therefore, binary data -but even sometimes non-binary data- is encoded into ASCII, this is transportable.

Base64 re-groups the bits of bytes, and maps them on characters. The data contains bytes of 8 bits (an octet). These are repacked into groups of 6 bits, pointing in an array of characters containing [A-Za-z0-9+/]. This way, three data bytes become 4 base64 bytes. The encoded data will be trailed by '=' characters to align on four bytes.

METHODS

Constructors

Mail::Message::TransferEnc::Base64->new(OPTIONS)

See "Constructors" in Mail::Reporter

The Encoder

Mail::Message::TransferEnc::Base64->addTransferEncoder(TYPE, CLASS)

See "The Encoder" in Mail::Message::TransferEnc

$obj->create(TYPE, OPTIONS)

See "The Encoder" in Mail::Message::TransferEnc

$obj->name

See "The Encoder" in Mail::Message::TransferEnc

Encoding

$obj->check(BODY, OPTIONS)

See "Encoding" in Mail::Message::TransferEnc

$obj->decode(BODY, OPTIONS)

Option       Defined in                     Default              
result_type  L<Mail::Message::TransferEnc>  <type of source body>

. result_type CLASS

$obj->encode(BODY, OPTIONS)

See "Encoding" in Mail::Message::TransferEnc

Error handling

$obj->AUTOLOAD

See "Error handling" in Mail::Reporter

$obj->addReport(OBJECT)

See "Error handling" in Mail::Reporter

$obj->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

Mail::Message::TransferEnc::Base64->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

See "Error handling" in Mail::Reporter

$obj->errors

See "Error handling" in Mail::Reporter

$obj->log([LEVEL [,STRINGS]])

Mail::Message::TransferEnc::Base64->log([LEVEL [,STRINGS]])

See "Error handling" in Mail::Reporter

$obj->logPriority(LEVEL)

Mail::Message::TransferEnc::Base64->logPriority(LEVEL)

See "Error handling" in Mail::Reporter

$obj->logSettings

See "Error handling" in Mail::Reporter

$obj->notImplemented

See "Error handling" in Mail::Reporter

$obj->report([LEVEL])

See "Error handling" in Mail::Reporter

$obj->reportAll([LEVEL])

See "Error handling" in Mail::Reporter

$obj->trace([LEVEL])

See "Error handling" in Mail::Reporter

$obj->warnings

See "Error handling" in Mail::Reporter

Cleanup

$obj->DESTROY

See "Cleanup" in Mail::Reporter

$obj->inGlobalDestruction

See "Cleanup" in Mail::Reporter

DIAGNOSTICS

Warning: Base64 line length not padded on 4.

While decoding base64 the data in a message body, a string was found which was not padded into a multiple of four bytes. This is illegal, and therefore this data is ignored.

Error: Decoder for transfer encoding $type does not work: $@

Compiling the required transfer encoding resulted in errors, which means that the decoder can not be used.

Warning: No decoder for transfer encoding $type.

A decoder for the specified type of transfer encoding is not implemented.

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.

REFERENCES

See the MailBox website at http://perl.overmeer.net/mailbox/ for more details.

COPYRIGHTS

Distribution version 2.061. Written by Mark Overmeer (mark@overmeer.net). See the ChangeLog for other contributors.

Copyright (c) 2001-2003 by the author(s). All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

cpanm Mail::Box

perl -MCPAN -e shell
install Mail::Box