Provided by: libmail-box-perl_2.110-1_all 
NAME
Mail::Transport::IMAP4 - proxy to Mail::IMAPClient
INHERITANCE
Mail::Transport::IMAP4
is a Mail::Transport::Receive
is a Mail::Transport
is a Mail::Reporter
SYNOPSIS
my $imap = Mail::Transport::IMAP4->new(...);
my $message = $imap->receive($id);
$imap->send($message);
DESCRIPTION
The IMAP4 protocol is quite complicated: it is feature rich and allows verious
asynchronous actions. The main document describing IMAP is rfc3501 (which obsoleted the
original specification of protocol 4r1 in rfc2060 in March 2003).
This package, as part of MailBox, does not implement the actual protocol itself but uses
Mail::IMAPClient to do the work. The task for this package is to hide as many differences
between that module's interface and the common MailBox folder types. Multiple
Mail::Box::IMAP4 folders can share one Mail::Transport::IMAP4 connection.
The Mail::IMAPClient module is the best IMAP4 implementation for Perl5, but is not
maintained. There are many known problems with the module, and solving those is outside
the scope of MailBox. See
http://rt.cpan.org/Public/Dist/Display.html?Name=Mail-IMAPClient for all the reported
bugs.
See documentation in the base class.
METHODS
See documentation in the base class.
$obj->url()
Represent this imap4 connection as URL.
Constructors
See documentation in the base class.
Mail::Transport::IMAP4->new(OPTIONS)
Create the IMAP connection to the server. IMAP servers can handle multiple folders
for a single user, which means that connections may get shared. This is sharing is
hidden for the user.
When an "imap_client" is specified, then the options "hostname", "port", "username",
and "password" are extracted from it.
-Option --Defined in --Default
authenticate 'AUTO'
domain <server_name>
executable Mail::Transport undef
hostname Mail::Transport 'localhost'
imap_client Mail::IMAPClient
interval Mail::Transport 30
log Mail::Reporter 'WARNINGS'
password Mail::Transport undef
port Mail::Transport 143
proxy Mail::Transport undef
retry Mail::Transport <false>
starttls false
timeout Mail::Transport 120
trace Mail::Reporter 'WARNINGS'
username Mail::Transport undef
via Mail::Transport 'imap'
authenticate => TYPE|ARRAY-OF-TYPES
Authenthication method to login(), which will be passed to Mail::IMAPClient method
authenticate(). See the latter method for the available types.
domain => WINDOWS_DOMAIN
Used for NTLM authentication.
executable => FILENAME
hostname => HOSTNAME|ARRAY-OF-HOSTNAMES
imap_client => OBJECT|CLASS
When an OBJECT is supplied, that client will be used for the implementation of the
IMAP4 protocol. Information about server and such are extracted from the OBJECT to
have the accessors to produce correct results. The OBJECT shall be a
Mail::IMAPClient.
When a CLASS is given, an object of that type is created for you. The created
object can be retrieved via imapClient(), and than configured as defined by
Mail::IMAPClient.
interval => SECONDS
log => LEVEL
password => STRING
port => INTEGER
proxy => PATH
retry => NUMBER|undef
starttls => BOOLEAN
tart Transport Security Layer (TLS).
timeout => SECONDS
trace => LEVEL
username => STRING
via => CLASS|NAME
Receiving mail
See documentation in the base class.
$obj->receive([UNIQUE-MESSAGE-ID])
See "Receiving mail" in Mail::Transport::Receive
Server connection
See documentation in the base class.
$obj->findBinary(NAME [, DIRECTORIES])
See "Server connection" in Mail::Transport
$obj->remoteHost()
See "Server connection" in Mail::Transport
$obj->retry()
See "Server connection" in Mail::Transport
Attributes
$obj->authentication(['AUTO'|TYPE|LIST-OF-TYPES])
Returned is a list of pairs (ref arrays) each describing one possible way to contact
the server. Each pair contains a mechanism name and a challenge callback (which may be
"undef").
The settings are used by login() to get server access. The initial value origins from
new(authenticate), but may be changed later.
Available basic TYPES are "CRAM-MD5", "NTLM", and "PLAIN". With "AUTO", all available
types will be tried. When the Authen::NTLM is not installed, the "NTLM" option will
silently be skipped. Be warned that, because of "PLAIN", erroneous username/password
combinations will be passed readible as last attempt!
The "NTLM" authentication requires Authen::NTLM to be installed. Other methods may be
added later. Besides, you may also specify a CODE reference which implements some
authentication.
An ARRAY as TYPE can be used to specify both mechanism as callback. When no array is
used, callback of the pair is set to "undef". See "authenticate" in Mail::IMAPClient
for the gory details.
example:
$transporter->authentication('CRAM-MD5', [MY_AUTH => \&c], 'PLAIN');
foreach my $pair ($transporter->authentication)
{ my ($mechanism, $challange) = @$pair;
...
}
$obj->domain([DOMAIN])
Used in NTLM authentication to define the Windows domain which is accessed. Initially
set by new(domain) and defaults to the server's name.
Exchanging Information
Protocol [internals]
The follow methods handle protocol internals, and should not be used by a normal user of
this class.
$obj->appendMessage(MESSAGE, FOLDERNAME, [DATE])
Write the message to the server. The optional DATA can be a RFC-822 date or a
timestamp.
$obj->createFolder(NAME)
Add a folder.
$obj->createImapClient(CLASS, OPTIONS)
Create an object of CLASS, which extends Mail::IMAPClient.
All OPTIONS will be passed to the constructor (new) of CLASS.
$obj->currentFolder([FOLDERNAME])
Be sure that the specific FOLDER is the current one selected. If the folder is
already selected, no IMAP traffic will be produced.
The boolean return value indicates whether the folder is selectable. It will return
undef if it does not exist.
$obj->deleteFolder(NAME)
Remove one folder.
$obj->destroyDeleted(FOLDER)
Command the server to delete for real all messages which are flagged to be deleted.
$obj->fetch(ARRAY-OF-MESSAGES, INFO)
Get some INFO about the MESSAGES from the server. The specified messages shall extend
Mail::Box::Net::Message, Returned is a list of hashes, each info about one result.
The contents of the hash differs per INFO, but at least a "message" field will be
present, to relate to the message in question.
The right folder should be selected before this method is called. When the connection
was lost, "undef" is returned. Without any messages, and empty array is returned.
The retrieval is done by Mail::IMAPClient method "fetch()", which is then parsed.
$obj->flagsToLabels(WHAT|FLAGS)
Mail::Transport::IMAP4->flagsToLabels(WHAT|FLAGS)
In SCALAR context, a hash with labels is returned. In LIST context, pairs are
returned.
The WHAT parameter can be 'SET', 'CLEAR', or 'REPLACE'. With the latter, all standard
imap flags do not appear in the list will be ignored: their value may either by set or
cleared. See getFlags()
Unknown flags in LIST are stripped from their backslash and lower-cased. For
instance, '\SomeWeirdFlag' will become `someweirdflag => 1'.
example: translating IMAP4 flags into MailBox flags
my @flags = ('\Seen', '\Flagged');
my $labels = Mail::Transport::IMAP4->flags2labels(SET => @flags);
$obj->folders([FOLDERNAME])
Returns a list of folder names which are sub-folders of the specified FOLDERNAME.
Without FOLDERNAME, the top-level foldernames are returned.
$obj->getFields(UID, NAME, [NAME, ...])
Get the records with the specified NAMES from the header. The header fields are
returned as list of Mail::Message::Field::Fast objects. When the name is "ALL", the
whole header is returned.
$obj->getFlags(FOLDER, ID)
Returns the values of all flags which are related to the message with the specified
ID. These flags are translated into the names which are standard for the MailBox
suite.
A HASH is returned. Names which do not appear will also provide a value in the
returned: the negative for the value is it was present.
$obj->getMessageAsString(MESSAGE|UID)
Returns the whole text of the specified message: the head and the body.
$obj->ids()
Returns a list of UIDs which are defined by the IMAP server.
$obj->imapClient()
Returns the object which implements the IMAP4 protocol, an instance of a
Mail::IMAPClient, which is logged-in and ready to use.
If the contact to the server was still present or could be established, an
Mail::IMAPClient object is returned. Else, "undef" is returned and no further actions
should be tried on the object.
$obj->labelsToFlags(HASH|PAIRS)
Mail::Transport::IMAP4->labelsToFlags(HASH|PAIRS)
Convert MailBox labels into IMAP flags. Returned is a string. Unsupported labels are
ignored.
$obj->listFlags()
Returns all predefined flags as list.
$obj->login()
Establish a new connection to the IMAP4 server, using username and password.
$obj->setFlags(ID, LABEL, VALUE, [LABEL, VALUE], ...)
Change the flags on the message which are represented by the label. The value which
can be related to the label will be lost, because IMAP only defines a boolean value,
where MailBox labels can contain strings.
Returned is a list of LABEL=>VALUE pairs which could not be send to the IMAP server.
These values may be cached in a different way.
Error handling
See documentation in the base class.
$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::Transport::IMAP4->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::Transport::IMAP4->log([LEVEL [,STRINGS]])
See "Error handling" in Mail::Reporter
$obj->logPriority(LEVEL)
Mail::Transport::IMAP4->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
See documentation in the base class.
$obj->DESTROY()
The connection is cleanly terminated when the program is terminated.
DIAGNOSTICS
Error: Cannot connect to $host:$port for IMAP4: $!
Error: IMAP cannot connect to $host: $@
Notice: IMAP4 authenication $mechanism to $host:$port successful
Error: IMAP4 requires a username and password
Error: IMAP4 username $username requires a password
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.
SEE ALSO
This module is part of Mail-Box distribution version 2.110, built on January 05, 2014.
Website: http://perl.overmeer.net/mailbox/
LICENSE
Copyrights 2001-2014 by [Mark Overmeer]. 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://www.perl.com/perl/misc/Artistic.html