NAME

Net::IMAP::Server::Command - A command in the IMAP server

DESCRIPTION

Commands the IMAP server knows about should be subclasses of this. They will want to override the "validate" and "run" methods.

METHODS

new

Called by the connection to create a new command.

server

Gets or sets the Net::IMAP::Server associated with this command.

connection

Gets or sets the Net::IMAP::Server::Connection associated with this command.

validate

Called before the command is run. If it returns a false value, the command is not run; it will probably want to inspect "parsed_options". If validate returns a false value, it is responsible for calling "no_command" or "bad_command" to notify the client of the failure. Handily, these return a false value.

run

Does the guts of the command. The return value is ignored; the command is in charge of eventually sending one of "ok_command", "bad_command", or "no_command" to the client.

The default implementation simply always response with "bad_command".

has_literal

Analyzes the options line, and returns true if the line has literals (as defined in the RFC, a literal is of the form {42}). If the line has literals, installs a "pending" in Net::IMAP::Server::Connection callback to continue the parsing, and returns true.

parse_options

Parses the options, and puts the results (which may be a data structure) into parsed_options.

command_id

Returns the (arbitrary) string that the client identified the command with.

parsed_options

Returns the list of options to the command.

options_str

Returns the flat string representation of the options the client gave.

data_out DATA

Returns a string representing the most probable IMAP string that conveys the DATA.

• Array references are converted into "parenthesized lists," and each element is recursively output.
• Scalar references are dereferenced and returned as-is.
• undef is output as NIL.
• Scalar values containing special characters are output as literals
• Purely numerical scalar values are output with no change
• All other scalar values are output within quotes.

Since the IMAP specification contains nothing which is similar to a hash, hash references are treated specially; specifically, the type key is taken to be how the value key should be output. Options for type are string or literal.

untagged_response STRING

Sends an untagged response to the client.

tagged_response

Sends a tagged response to the client.

poll_after

Returns a true value if the command should send untagged updates about the selected mailbox after the command completes. Defaults to always true.

send_untagged

Sends untagged updates about the currently selected inbox to the client using "send_untagged" in Net::IMAP::Server::Connection, but only if the command has a true "poll_after".

ok_command MESSAGE [, RESPONSECODE => STRING, ...]

Sends untagged OK responses for any RESPONSECODE pairs, then outputs untagged messages via "send_untagged", then sends a tagged OK with the given MESSAGE.

ok_completed [RESPONSECODE => STRING]

Sends an OK COMPLETED tagged response to the client.

no_command MESSAGE [, RESPONSECODE => STRING, ...]

Sends untagged NO responses for any RESPONSECODE pairs, then outputs untagged messages via "send_untagged", then sends a tagged OK with the given MESSAGE.

bad_command REASON

Sends any untagged updates to the client using "send_untagged", then sends a tagged BAD response with the given REASON.

valid_mailbox NAME

Returns false and calls "bad_command" if the given NAME is a valid name for a mailbox. This only checks that is passes UTF-7 encoding checks, and that it contains no 8-bit characters. If the name is valid, simply returns 1.

log SEVERITY, MESSAGE

Defers to "log" in Net::IMAP::Server::Connection.

out MESSAGE

Identical to "out" in Net::IMAP::Server::Connection.