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https://github.com/duesee/imap-next


https://github.com/duesee/imap-next

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# imap-next ð“…Ÿ

```mermaid
%%{init: {'theme': 'neutral' } }%%
flowchart LR
imap-types --> imap-codec
imap-codec --> imap-next
imap-next -.-> imap-proxy
imap-next -.-> imap-client

style imap-codec stroke-dasharray: 10 5
style imap-next stroke-width:4px

click imap-types href "https://github.com/duesee/imap-codec/tree/main/imap-types"
click imap-codec href "https://github.com/duesee/imap-codec"
click imap-next href "https://github.com/duesee/imap-next"
click imap-proxy href "https://github.com/duesee/imap-proxy"
click imap-client href "https://github.com/soywod/imap-client"
```

`imap-next` is a thin sans I/O abstraction over IMAP's distinct protocol flows.
These are literal handling, AUTHENTICATE, and IDLE.

The way these protocol flows were defined in IMAP couples networking, parsing, and business logic.
`imap-next` untangles them, providing a minimal interface allowing sending and receiving coherent messages.
It's a thin layer paving the ground for higher-level client or server implementations.
And it's sans I/O enabling the integration in any existing I/O runtime.

## Lower-level Libraries

`imap-next` uses [`imap-codec`](https://github.com/duesee/imap-codec) internally for parsing and serialization, and
re-exposes [`imap-types`](https://github.com/duesee/imap-codec/tree/main/imap-types).

## Higher-level Libraries

* [`imap-proxy`](https://github.com/duesee/imap-proxy) is an IMAP proxy that gracefully forwards unsolicited responses,
abstracts over literals, and `Debug`-prints messages.
* [`imap-client`](https://github.com/soywod/imap-client) is a methods-based client library with
a `client.capability()`, `client.login()`, ... interface.

## Usage

```rust,no_run
use std::error::Error;
use imap_next::{
client::{Client, Event, Options},
imap_types::{
command::{Command, CommandBody},
core::Tag,
},
stream::Stream,
};
use tokio::net::TcpStream;

#[tokio::main]
async fn main() -> Result<(), Box> {
let mut stream = Stream::insecure(TcpStream::connect("127.0.0.1:1143").await?);
let mut client = Client::new(Options::default());

loop {
match stream.next(&mut client).await? {
event => {
println!("{event:?}");

if matches!(event, Event::GreetingReceived { .. }) {
break;
}
}
}
}

let handle = client.enqueue_command(Command::new("A1", CommandBody::login("Al¹cE", "pa²²w0rd")?)?);

loop {
match stream.next(&mut client).await? {
event => println!("{event:?}"),
}
}
}
```

# License

This crate is dual-licensed under Apache 2.0 and MIT terms.

# Thanks

Thanks to the [NLnet Foundation](https://nlnet.nl/) for supporting `imap-next` through
their [NGI Assure](https://nlnet.nl/assure/) program!


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