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//! Sbot type and associated methods.
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use async_std ::net ::TcpStream ;
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use kuska_handshake ::async_std ::BoxStream ;
use kuska_sodiumoxide ::crypto ::{ auth , sign ::ed25519 } ;
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use kuska_ssb ::{
api ::{
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dto ::{
//content::{About, Post},
content ::TypedMessage ,
CreateHistoryStreamIn ,
} ,
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ApiCaller ,
} ,
discovery , keystore ,
keystore ::OwnedIdentity ,
rpc ::{ RpcReader , RpcWriter } ,
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} ;
use crate ::error ::GolgiError ;
use crate ::utils ;
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/// The Scuttlebutt identity, keys and configuration parameters for connecting to a local sbot
/// instance, as well as handles for calling RPC methods and receiving responses.
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pub struct Sbot {
id : String ,
public_key : ed25519 ::PublicKey ,
private_key : ed25519 ::SecretKey ,
address : String ,
// aka caps key (scuttleverse identifier)
network_id : auth ::Key ,
client : ApiCaller < TcpStream > ,
rpc_reader : RpcReader < TcpStream > ,
}
impl Sbot {
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/// Initiate a connection with an sbot instance. Define the IP address, port and network key
/// for the sbot, then retrieve the public key, private key (secret) and identity from the
/// `.ssb-go/secret` file. Open a TCP stream to the sbot and perform the secret handshake. If successful, create a box stream and split it into a writer and reader. Return RPC handles to the sbot as part of the `struct` output.
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pub async fn init ( ip_port : Option < String > , net_id : Option < String > ) -> Result < Sbot , GolgiError > {
let address ;
if ip_port . is_none ( ) {
address = " 127.0.0.1:8008 " . to_string ( ) ;
} else {
address = ip_port . unwrap ( ) ;
}
let network_id ;
if net_id . is_none ( ) {
network_id = discovery ::ssb_net_id ( ) ;
} else {
network_id = auth ::Key ::from_slice ( & hex ::decode ( net_id . unwrap ( ) ) . unwrap ( ) ) . unwrap ( ) ;
}
let OwnedIdentity { pk , sk , id } = keystore ::from_gosbot_local ( )
. await
. expect ( " couldn't read local secret " ) ;
let socket = TcpStream ::connect ( & address )
. await
. map_err ( | source | GolgiError ::Io {
source ,
context : " socket error; failed to initiate tcp stream connection " . to_string ( ) ,
} ) ? ;
let handshake = kuska_handshake ::async_std ::handshake_client (
& mut & socket ,
network_id . clone ( ) ,
pk ,
sk . clone ( ) ,
pk ,
)
. await
. map_err ( GolgiError ::Handshake ) ? ;
let ( box_stream_read , box_stream_write ) =
BoxStream ::from_handshake ( socket . clone ( ) , socket , handshake , 0x8000 ) . split_read_write ( ) ;
let rpc_reader = RpcReader ::new ( box_stream_read ) ;
let client = ApiCaller ::new ( RpcWriter ::new ( box_stream_write ) ) ;
Ok ( Self {
id ,
public_key : pk ,
private_key : sk ,
address ,
network_id ,
client ,
rpc_reader ,
} )
}
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/// Call the `whoami` RPC method and return an `id`.
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pub async fn whoami ( & mut self ) -> Result < String , GolgiError > {
let req_id = self . client . whoami_req_send ( ) . await ? ;
utils ::get_async ( & mut self . rpc_reader , req_id , utils ::whoami_res_parse )
. await
. map ( | whoami | whoami . id )
}
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/// Call the `publish` RPC method and return a message reference.
///
/// # Arguments
///
/// * `msg` - A `TypedMessage` `enum` whose variants include `Pub`, `Post`, `Contact`, `About`,
/// `Channel` and `Vote`. See the `kuska_ssb` documentation for further details such as field
/// names and accepted values for each variant.
pub async fn publish ( & mut self , msg : TypedMessage ) -> Result < String , GolgiError > {
let req_id = self . client . publish_req_send ( msg ) . await ? ;
utils ::get_async ( & mut self . rpc_reader , req_id , utils ::publish_res_parse ) . await
}
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/// Wrapper for publish which constructs and publish a post message appropriately from a string.
///
/// # Arguments
///
/// * `text` - A &str which represents the text to be published in the post
pub async fn publish_post ( & mut self , text : & str ) -> Result < String , GolgiError > {
let msg = TypedMessage ::Post { text : text . to_string ( ) , mentions : None } ;
self . publish ( msg ) . await
}
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/*
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pub async fn publish_post ( & mut self , post : Post ) -> Result < String , GolgiError > {
let req_id = self . client . publish_req_send ( post ) . await ? ;
utils ::get_async ( & mut self . rpc_reader , req_id , utils ::publish_res_parse ) . await
}
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* /
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/// Call the `createHistoryStream` RPC method and print the output.
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async fn create_history_stream ( & mut self , id : String ) -> Result < ( ) , GolgiError > {
let args = CreateHistoryStreamIn ::new ( id ) ;
let req_id = self . client . create_history_stream_req_send ( & args ) . await ? ;
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// TODO: we should return a vector of messages instead of printing them
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utils ::print_source_until_eof ( & mut self . rpc_reader , req_id , utils ::feed_res_parse ) . await
}
}