imap_client

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Description:

imap client

imap_client #
An interface to get emails via the imap protocol (version 4rev1)
This interface implements the IMAP protocol (version 4 rev 1) as described in rfc 3501.
This package gives easy access to all commands and automatically analyzes responses.
Supported extensions:

RFC 2177: IMAP4 IDLE command

This package is made available under the GNU General Public License v3.0.
Usage #
This example connects the client to an imap server:
import 'package:imap_client/imap_client.dart';

main() async {
ImapClient client = new ImapClient();

await client.connect("imap.gmail.com", 993, true);
}
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All commands are async methods that can be awaited for. On completion,
most return an enum ImapTaggedResponse, which can be either:

OK: success
NO: command was unsuccessful
BAD: command not accepted by the server

Sometimes, there are commands which have other return data, like fetch or list.
To select a folder, a simple call to getFolder() is sufficient:
import 'package:imap_client/imap_client.dart';

main() async {
ImapClient client = new ImapClient();

await client.connect("imap.gmail.com", 993, true);

ImapFolder inbox = client.getFolder("inbox");
}
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This ImapFolder instance allows for actions in this specific folder.
Folders can only exist once per name, so another call to ImapClient.getFolder() with
the same name will return the same ImapFolder instance! If an instance
is no longer needed, it can be marked for garbage collection via ImapFolder.destroy().
This will free up some ram and should especially be considered when working with
many folders.
There are two types of handlers that are highly suggested to be implemented:
ALERT handler:
void Function(String message)
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The messages passed to this function are directly from the server and must be
shown to the user (as defined in the protocol).
EXPUNGE handler:
void Function(int number)
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This function receives message numbers of messages that have been deleted.
Both can be set directly via the client instance, either via client.expungeHandler = ...
or client.alertHandler = ...
ImapFolder.store(), ImapFolder.fetch() and ImapFolder.copy() need messages to work with.
Those messages can either be provided via the optional messageId parameter, or if ranges are needed,
via the optional messageIdRanges. One of the two must always be given.
Ranges have the following format: start:end, whereas end can also be *, which matches the
highest possible number as determined by the server. This means that 1:* would match every mail in this folder.
To use message uids instead of relative numbers, the optional parameter uid can be set to true.
Please note that responses from the server will also use uids instead of relative numbers.
Example:
await inbox.fetch(["BODY"], messageIds: [1]);
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Authentication #
The last important thing would be logging in. There are three possible ways:
Preauth
Preauth means that the client is already registered, this might be because credentials were
already submitted via the url on connect.
Login
The login command takes a username and password as parameters.
await client.login("username", "password");
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Authenticate
The authenticate command is used for any other authentication mechanisms. It takes an
ImapSaslMechanism object and logs in via the mechanism defined there. "login" and "plain"
are both already implemented, a short walk through on how to create a custom mechanism can
be found in the wiki.
await client.authenticate(new ImapPlainAuth("username", "password"));
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Closing the connection #
To close the connection, logout can either be called in a folder or the client itself.
Features and bugs #
Feel free to contribute to this project.
If you find a bug or think of a new feature, but don't know how to fix/implement it, please open an issue.
If you fixed a bug or implemented a new feature, please send a pull request.

License

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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