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# Added by cargo
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[package]
name = "signal-irc-bridge"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
bytes = "1.6.0"
futures = "0.3.30"
futures-util = "0.3.30"
irc = "1.0.0"
jsonrpsee = { version = "0.22.4", features = ["macros", "async-client"] }
log = "0.4.21"
pretty_env_logger = "0.5.0"
serde = "1.0.199"
serde_json = "1.0.116"
thiserror = "1.0.59"
tokio = { version = "1.37.0", features = ["full"] }
tokio-stream = "0.1.15"
tokio-util = "0.7.10"

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along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

11
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# Bridge between irc and signal
This program bridges togther one irc channel and one signal group (multiple channels is unsupported though it is easy to implement).
It uses [signal-cli](https://github.com/AsamK/signal-cli/) for the signal protocol and [irc crate](https://crates.io/crates/irc) for the irc part.
For the moment it does not support CTCP.
# how to deploy
TODO

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#!/usr/bin/env bash
signal-cli --config ./.config/ daemon --socket ./socket --receive-mode=manual

47
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# Generated by npins. Do not modify; will be overwritten regularly
let
data = builtins.fromJSON (builtins.readFile ./sources.json);
version = data.version;
mkSource = spec:
assert spec ? type; let
path =
if spec.type == "Git" then mkGitSource spec
else if spec.type == "GitRelease" then mkGitSource spec
else if spec.type == "PyPi" then mkPyPiSource spec
else if spec.type == "Channel" then mkChannelSource spec
else builtins.throw "Unknown source type ${spec.type}";
in
spec // { outPath = path; };
mkGitSource = { repository, revision, url ? null, hash, ... }:
assert repository ? type;
# At the moment, either it is a plain git repository (which has an url), or it is a GitHub/GitLab repository
# In the latter case, there we will always be an url to the tarball
if url != null then
(builtins.fetchTarball {
inherit url;
sha256 = hash; # FIXME: check nix version & use SRI hashes
})
else assert repository.type == "Git"; builtins.fetchGit {
url = repository.url;
rev = revision;
# hash = hash;
};
mkPyPiSource = { url, hash, ... }:
builtins.fetchurl {
inherit url;
sha256 = hash;
};
mkChannelSource = { url, hash, ... }:
builtins.fetchTarball {
inherit url;
sha256 = hash;
};
in
if version == 3 then
builtins.mapAttrs (_: mkSource) data.pins
else
throw "Unsupported format version ${toString version} in sources.json. Try running `npins upgrade`"

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{
"pins": {
"nixpkgs": {
"type": "Channel",
"name": "nixpkgs-unstable",
"url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.05pre615144.69ee1d82f1fa/nixexprs.tar.xz",
"hash": "181kd75xkvxv8f9845hvjac0d2ic65p1jvv1jv5ljyw1binc1ah7"
}
},
"version": 3
}

12
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{ pkgs ? import (import ./npins).nixpkgs { } }:
pkgs.mkShell {
buildInputs = [
pkgs.cargo
pkgs.openssl
pkgs.pkg-config
pkgs.signal-cli
pkgs.rustc
pkgs.rust-analyzer
pkgs.rustfmt
];
}

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/*
* This work is adapted from signal-cli (https://github.com/AsamK/signal-cli/)
* Copyright (C) 2024 AsamK
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use std::path::Path;
use jsonrpsee::async_client::ClientBuilder;
use jsonrpsee::core::client::SubscriptionClientT;
use jsonrpsee::proc_macros::rpc;
use serde::Deserialize;
use serde_json::Value;
#[rpc(client)]
pub trait Rpc {
#[method(name = "addDevice", param_kind = map)]
async fn add_device(
&self,
account: Option<String>,
uri: String,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "addStickerPack", param_kind = map)]
async fn add_sticker_pack(
&self,
account: Option<String>,
uri: String,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "block", param_kind = map)]
fn block(
&self,
account: Option<String>,
recipients: Vec<String>,
#[allow(non_snake_case)] groupIds: Vec<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "deleteLocalAccountData", param_kind = map)]
fn delete_local_account_data(
&self,
account: Option<String>,
#[allow(non_snake_case)] ignoreRegistered: Option<bool>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "getAttachment", param_kind = map)]
fn get_attachment(
&self,
account: Option<String>,
id: String,
recipient: Option<String>,
#[allow(non_snake_case)] groupId: Option<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "getAvatar", param_kind = map)]
fn get_avatar(
&self,
account: Option<String>,
contact: Option<String>,
profile: Option<String>,
#[allow(non_snake_case)] groupId: Option<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "getSticker", param_kind = map)]
fn get_sticker(
&self,
account: Option<String>,
#[allow(non_snake_case)] packId: String,
#[allow(non_snake_case)] stickerId: u32,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "getUserStatus", param_kind = map)]
fn get_user_status(
&self,
account: Option<String>,
recipients: Vec<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "joinGroup", param_kind = map)]
fn join_group(&self, account: Option<String>, uri: String) -> Result<Value, ErrorObjectOwned>;
#[allow(non_snake_case)]
#[method(name = "finishChangeNumber", param_kind = map)]
fn finish_change_number(
&self,
account: Option<String>,
number: String,
verificationCode: String,
pin: Option<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "finishLink", param_kind = map)]
fn finish_link(
&self,
#[allow(non_snake_case)] deviceLinkUri: String,
#[allow(non_snake_case)] deviceName: String,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "listAccounts", param_kind = map)]
fn list_accounts(&self) -> Result<Value, ErrorObjectOwned>;
#[method(name = "listContacts", param_kind = map)]
fn list_contacts(
&self,
account: Option<String>,
recipients: Vec<String>,
#[allow(non_snake_case)] allRecipients: bool,
blocked: Option<bool>,
name: Option<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "listDevices", param_kind = map)]
fn list_devices(&self, account: Option<String>) -> Result<Value, ErrorObjectOwned>;
#[method(name = "listGroups", param_kind = map)]
fn list_groups(
&self,
account: Option<String>,
#[allow(non_snake_case)] groupIds: Vec<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "listIdentities", param_kind = map)]
fn list_identities(
&self,
account: Option<String>,
number: Option<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "listStickerPacks", param_kind = map)]
fn list_sticker_packs(&self, account: Option<String>) -> Result<Value, ErrorObjectOwned>;
#[method(name = "quitGroup", param_kind = map)]
fn quit_group(
&self,
account: Option<String>,
#[allow(non_snake_case)] groupId: String,
delete: bool,
admins: Vec<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "register", param_kind = map)]
fn register(
&self,
account: Option<String>,
voice: bool,
captcha: Option<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "removeContact", param_kind = map)]
fn remove_contact(
&self,
account: Option<String>,
recipient: String,
forget: bool,
hide: bool,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "removeDevice", param_kind = map)]
fn remove_device(
&self,
account: Option<String>,
#[allow(non_snake_case)] deviceId: u32,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "removePin", param_kind = map)]
fn remove_pin(&self, account: Option<String>) -> Result<Value, ErrorObjectOwned>;
#[method(name = "remoteDelete", param_kind = map)]
fn remote_delete(
&self,
account: Option<String>,
#[allow(non_snake_case)] targetTimestamp: u64,
recipients: Vec<String>,
#[allow(non_snake_case)] groupIds: Vec<String>,
#[allow(non_snake_case)] noteToSelf: bool,
) -> Result<Value, ErrorObjectOwned>;
#[allow(non_snake_case)]
#[method(name = "send", param_kind = map)]
fn send(
&self,
account: Option<String>,
recipients: Vec<String>,
groupIds: Vec<String>,
noteToSelf: bool,
endSession: bool,
message: String,
attachments: Vec<String>,
mentions: Vec<String>,
textStyle: Vec<String>,
quoteTimestamp: Option<u64>,
quoteAuthor: Option<String>,
quoteMessage: Option<String>,
quoteMention: Vec<String>,
quoteTextStyle: Vec<String>,
quoteAttachment: Vec<String>,
preview_url: Option<String>,
preview_title: Option<String>,
preview_description: Option<String>,
preview_image: Option<String>,
sticker: Option<String>,
storyTimestamp: Option<u64>,
storyAuthor: Option<String>,
editTimestamp: Option<u64>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "sendContacts", param_kind = map)]
fn send_contacts(&self, account: Option<String>) -> Result<Value, ErrorObjectOwned>;
#[method(name = "sendPaymentNotification", param_kind = map)]
fn send_payment_notification(
&self,
account: Option<String>,
recipient: String,
receipt: String,
note: String,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "sendReaction", param_kind = map)]
fn send_reaction(
&self,
account: Option<String>,
recipients: Vec<String>,
#[allow(non_snake_case)] groupIds: Vec<String>,
#[allow(non_snake_case)] noteToSelf: bool,
emoji: String,
#[allow(non_snake_case)] targetAuthor: String,
#[allow(non_snake_case)] targetTimestamp: u64,
remove: bool,
story: bool,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "sendReceipt", param_kind = map)]
fn send_receipt(
&self,
account: Option<String>,
recipient: String,
#[allow(non_snake_case)] targetTimestamps: Vec<u64>,
r#type: String,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "sendSyncRequest", param_kind = map)]
fn send_sync_request(&self, account: Option<String>) -> Result<Value, ErrorObjectOwned>;
#[method(name = "sendTyping", param_kind = map)]
fn send_typing(
&self,
account: Option<String>,
recipients: Vec<String>,
#[allow(non_snake_case)] groupIds: Vec<String>,
stop: bool,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "sendMessageRequestResponse", param_kind = map)]
fn send_message_request_response(
&self,
account: Option<String>,
recipients: Vec<String>,
#[allow(non_snake_case)] groupIds: Vec<String>,
r#type: String,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "setPin", param_kind = map)]
fn set_pin(&self, account: Option<String>, pin: String) -> Result<Value, ErrorObjectOwned>;
#[method(name = "submitRateLimitChallenge", param_kind = map)]
fn submit_rate_limit_challenge(
&self,
account: Option<String>,
challenge: String,
captcha: String,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "startChangeNumber", param_kind = map)]
fn start_change_number(
&self,
account: Option<String>,
number: String,
voice: bool,
captcha: Option<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "startLink", param_kind = map)]
fn start_link(&self, account: Option<String>) -> Result<JsonLink, ErrorObjectOwned>;
#[method(name = "trust", param_kind = map)]
fn trust(
&self,
account: Option<String>,
recipient: String,
#[allow(non_snake_case)] trustAllKnownKeys: bool,
#[allow(non_snake_case)] verifiedSafetyNumber: Option<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "unblock", param_kind = map)]
fn unblock(
&self,
account: Option<String>,
recipients: Vec<String>,
#[allow(non_snake_case)] groupIds: Vec<String>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "unregister", param_kind = map)]
fn unregister(
&self,
account: Option<String>,
#[allow(non_snake_case)] deleteAccount: bool,
) -> Result<Value, ErrorObjectOwned>;
#[allow(non_snake_case)]
#[method(name = "updateAccount", param_kind = map)]
fn update_account(
&self,
account: Option<String>,
deviceName: Option<String>,
unrestrictedUnidentifiedSender: Option<bool>,
discoverableByNumber: Option<bool>,
numberSharing: Option<bool>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "updateConfiguration", param_kind = map)]
fn update_configuration(
&self,
account: Option<String>,
#[allow(non_snake_case)] readReceipts: Option<bool>,
#[allow(non_snake_case)] unidentifiedDeliveryIndicators: Option<bool>,
#[allow(non_snake_case)] typingIndicators: Option<bool>,
#[allow(non_snake_case)] linkPreviews: Option<bool>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "updateContact", param_kind = map)]
fn update_contact(
&self,
account: Option<String>,
recipient: String,
name: Option<String>,
expiration: Option<u32>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "updateGroup", param_kind = map)]
fn update_group(
&self,
account: Option<String>,
#[allow(non_snake_case)] groupId: Option<String>,
name: Option<String>,
description: Option<String>,
avatar: Option<String>,
member: Vec<String>,
#[allow(non_snake_case)] removeMember: Vec<String>,
admin: Vec<String>,
#[allow(non_snake_case)] removeAdmin: Vec<String>,
ban: Vec<String>,
unban: Vec<String>,
#[allow(non_snake_case)] resetLink: bool,
#[allow(non_snake_case)] link: Option<String>,
#[allow(non_snake_case)] setPermissionAddMember: Option<String>,
#[allow(non_snake_case)] setPermissionEditDetails: Option<String>,
#[allow(non_snake_case)] setPermissionSendMessages: Option<String>,
expiration: Option<u32>,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "updateProfile", param_kind = map)]
fn update_profile(
&self,
account: Option<String>,
#[allow(non_snake_case)] givenName: Option<String>,
#[allow(non_snake_case)] familyName: Option<String>,
about: Option<String>,
#[allow(non_snake_case)] aboutEmoji: Option<String>,
#[allow(non_snake_case)] mobileCoinAddress: Option<String>,
avatar: Option<String>,
#[allow(non_snake_case)] removeAvatar: bool,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "uploadStickerPack", param_kind = map)]
fn upload_sticker_pack(
&self,
account: Option<String>,
path: String,
) -> Result<Value, ErrorObjectOwned>;
#[method(name = "verify", param_kind = map)]
fn verify(
&self,
account: Option<String>,
#[allow(non_snake_case)] verificationCode: String,
pin: Option<String>,
) -> Result<Value, ErrorObjectOwned>;
#[subscription(
name = "subscribeReceive" => "receive",
unsubscribe = "unsubscribeReceive",
item = Value,
param_kind = map
)]
async fn subscribe_receive(&self, account: Option<String>) -> SubscriptionResult;
#[method(name = "version")]
fn version(&self) -> Result<Value, ErrorObjectOwned>;
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct JsonLink {
pub device_link_uri: String,
}
pub async fn connect_unix(
socket_path: impl AsRef<Path>,
) -> Result<impl SubscriptionClientT, std::io::Error> {
let (sender, receiver) = super::transports::ipc::connect(socket_path).await?;
Ok(ClientBuilder::default().build_with_tokio(sender, receiver))
}

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mod jsonrpc;
mod transform;
mod transports;
use crate::jsonrpc::RpcClient;
use irc::client::ClientStream;
use jsonrpsee::core::client::SubscriptionClientT;
use log;
use serde_json::Value;
use std::path::Path;
use transform::Bridge;
use jsonrpsee::core::client::Subscription;
use pretty_env_logger;
use futures::future::try_join;
use futures::prelude::*;
use irc::client::prelude::*;
const CHANNEL: &str = "#hackens-signal";
const MEDIA_DIR: &str = "./www";
const SIGNALCLI_DIR: &str = "./.config";
const SOCKET: &str = "./socket";
const URL_ROOT: &str = "https://hackens.org/irc-bridge/";
#[tokio::main]
async fn main() -> Result<(), String> {
pretty_env_logger::init();
log::info!("Starting...");
// TODO: load config at runtime and add consts inside
let config = Config {
nickname: Some("bottest".to_owned()),
server: Some("ulminfo.fr".to_owned()),
channels: vec![CHANNEL.to_owned()],
use_tls: Some(true),
..Config::default()
};
// Initialisation of components. TODO separate module
let init_irc = async {
let mut client = Client::from_config(config).await.unwrap();
client.identify().unwrap();
let sender = client.sender();
let mut stream = client.stream().unwrap();
log::debug!("Initializing IRC");
while client.list_channels().is_some_and(|x| x.len() == 0) {
stream
.next()
.await
.transpose()
.map_err(|e| format!("error waiting for motd: {e}"))?;
}
log::debug!("Initialized IRC");
Ok::<(irc::client::Sender, ClientStream), String>((sender, stream))
};
let init_signal = async {
log::debug!("Initializing Signal");
let signal_client = jsonrpc::connect_unix(SOCKET)
.await
.map_err(|e| format!("failed to connect to signal socket: {e}"))?;
let signal_stream = signal_client.subscribe_receive(None).await.unwrap();
log::debug!("Initialized Signal");
Ok((signal_stream, signal_client))
};
let ((sender, mut stream), (mut signal_stream, signal_client)) =
try_join(init_irc, init_signal).await?;
let bridge = Bridge::new(
&Path::new(MEDIA_DIR),
&Path::new(SIGNALCLI_DIR),
URL_ROOT,
GROUPID,
);
// Run !!
log::info!("Bridge is up and running");
try_join(
handle_signal(sender, &mut signal_stream, &bridge),
handle_irc(&mut stream, signal_client, &bridge),
)
.await?;
unreachable!();
}
async fn handle_irc(
stream: &mut ClientStream,
signal_client: impl SubscriptionClientT + std::marker::Sync,
bridge: &Bridge<'_>,
) -> Result<(), String> {
loop {
if let Some(message) = stream
.next()
.await
.transpose()
.map_err(|e| format!("error while retrieving messages from irc: {e}"))?
{
if let Some(msg) = bridge.irc2signal(message) {
log::trace!("[SIGNAL SEND] {msg}");
signal_client
.send(
None,
vec![],
vec![String::from(GROUPID)],
false,
false,
msg,
vec![],
vec![],
vec![],
None,
None,
None,
vec![],
vec![],
vec![],
None,
None,
None,
None,
None,
None,
None,
None,
)
.await
.map_err(|e| format!("error while sending to signal: {e}"))?;
}
}
}
}
async fn handle_signal(
sender: Sender,
stream: &mut Subscription<Value>,
bridge: &Bridge<'_>,
) -> Result<(), String> {
loop {
match stream.next().await {
None => {
return Err(String::from("signal-cli stream terminated"));
}
Some(Ok(val)) => {
log::trace!("[SIGNAL RCV] {:?}", val);
if let Some(msg) = bridge.signal2irc(val).await {
sender
.send_privmsg(CHANNEL, msg)
.map_err(|e| format!("error while sending to irc: {e}"))?;
}
}
Some(Err(err)) => return Err(format!("error while retrieving messages from signal: {err}")),
}
}
}

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use irc::client::prelude::*;
use serde_json::Map;
use serde_json::Value;
use std::path::Path;
use tokio::fs::copy;
#[derive(Default)]
struct SignalMessageBuilder {
from: Option<String>,
message: Option<String>,
attachments_urls: Vec<String>,
valid: bool,
}
impl SignalMessageBuilder {
pub fn message(self: &mut Self, message: String) {
self.message = Some(message);
}
pub fn from(self: &mut Self, from: String) {
self.from = Some(from);
}
pub fn attach(self: &mut Self, attach: Vec<String>) {
self.attachments_urls.extend_from_slice(&attach);
}
pub fn valid(self: &mut Self, v: bool) {
self.valid = v;
}
pub fn build(self: &Self) -> Option<String> {
if !self.valid {
return None;
}
let attachments_text = self.attachments_urls.join(", ");
match (&self.message, attachments_text.len()) {
(None, 0) => None,
(None, _) => self
.from
.as_ref()
.map(|from| format!("<{from}>: {attachments_text}")),
(Some(m), 0) => self.from.as_ref().map(|from| format!("<{from}>: {m}")),
(Some(m), _) => self
.from
.as_ref()
.map(|from| format!("<{from}>: {m} ({attachments_text})")),
}
}
}
pub struct Bridge<'a> {
media_dir: &'a Path,
signalcli_dir: &'a Path,
url_root: &'a str,
groupid: &'a str,
}
impl<'a> Bridge<'a> {
pub fn new(
media_dir: &'a Path,
signalcli_dir: &'a Path,
url_root: &'a str,
groupid: &'a str,
) -> Self {
Self {
media_dir,
signalcli_dir,
url_root,
groupid,
}
}
async fn handle_attachment(self: &Self, attachment: &Value) -> Option<String> {
if let Value::Object(a) = attachment {
if let Some(Value::String(fname)) = a.get("id") {
match copy(
self.signalcli_dir.join("attachments").join(fname),
self.media_dir.join(fname),
)
.await
{
Err(e) => {
log::error!("dropped attachment because of {e}");
return None;
}
_ => {
let url_root = self.url_root;
return Some(url_root.to_owned() + fname);
}
}
}
}
None
}
async fn process_signal(
self: &Self,
message: &Map<String, Value>,
result: &mut SignalMessageBuilder,
) {
if let Some(Value::Array(attachments)) = message.get("attachments") {
let mut attachments_urls = Vec::with_capacity(attachments.len());
for a in attachments.iter() {
if let Some(url) = self.handle_attachment(a).await {
attachments_urls.push(url);
} else {
log::warn!("droped attachment: {a}");
}
}
result.attach(attachments_urls);
};
if let Some(Value::String(text)) = message.get("message") {
result.message(text.clone());
}
if let Some(Value::Object(group_info)) = message.get("groupInfo") {
if let Some(Value::String(groupid)) = group_info.get("groupId") {
result.valid(groupid == self.groupid);
}
}
}
pub async fn signal2irc(self: &Self, signal: Value) -> Option<String> {
let mut result: SignalMessageBuilder = SignalMessageBuilder::default();
if let Value::Object(map) = signal {
if let Some(Value::Object(envelope)) = map.get("envelope") {
if let Some(Value::String(from)) = envelope.get("sourceName") {
result.from(from.to_owned());
}
if let Some(Value::Object(message)) = envelope.get("dataMessage") {
self.process_signal(message, &mut result).await;
}
if let Some(Value::Object(m)) = envelope.get("syncMessage") {
if let Some(Value::Object(message)) = m.get("sentMessage") {
self.process_signal(message, &mut result).await;
}
}
}
}
result.build()
}
pub fn irc2signal(self: &Self, message: Message) -> Option<String> {
match (message.prefix, message.command) {
(Some(Prefix::Nickname(from, _, _)), Command::PRIVMSG(_, message)) => {
return Some(format!("<{from}>: {message}"))
}
(Some(Prefix::Nickname(from, _, _)), Command::NOTICE(_, message)) => {
return Some(format!("📜 {from} {message}"))
}
_ => return None,
}
}
}

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/*
* This work is adapted from signal-cli (https://github.com/AsamK/signal-cli/)
* Copyright (C) 2024 AsamK
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use std::io::Error;
use std::path::Path;
use futures_util::stream::StreamExt;
use jsonrpsee::core::client::{TransportReceiverT, TransportSenderT};
use tokio::net::UnixStream;
use tokio_util::codec::Decoder;
use super::stream_codec::StreamCodec;
use super::{Receiver, Sender};
/// Connect to a JSON-RPC Unix Socket server.
pub async fn connect(
socket: impl AsRef<Path>,
) -> Result<(impl TransportSenderT + Send, impl TransportReceiverT + Send), Error> {
let connection = UnixStream::connect(socket).await?;
let (sink, stream) = StreamCodec::stream_incoming().framed(connection).split();
let sender = Sender { inner: sink };
let receiver = Receiver { inner: stream };
Ok((sender, receiver))
}

80
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/*
* This work is adapted from signal-cli (https://github.com/AsamK/signal-cli/)
* Copyright (C) 2024 AsamK
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use futures_util::{stream::StreamExt, Sink, SinkExt, Stream};
use jsonrpsee::core::{
async_trait,
client::{ReceivedMessage, TransportReceiverT, TransportSenderT},
};
use thiserror::Error;
pub mod ipc;
mod stream_codec;
#[derive(Debug, Error)]
enum Errors {
#[error("Other: {0}")]
Other(String),
#[error("Closed")]
Closed,
}
struct Sender<T: Send + Sink<String>> {
inner: T,
}
#[async_trait]
impl<T: Send + Sink<String, Error = impl std::error::Error> + Unpin + 'static> TransportSenderT
for Sender<T>
{
type Error = Errors;
async fn send(&mut self, body: String) -> Result<(), Self::Error> {
self.inner
.send(body)
.await
.map_err(|e| Errors::Other(format!("{:?}", e)))?;
Ok(())
}
async fn close(&mut self) -> Result<(), Self::Error> {
self.inner
.close()
.await
.map_err(|e| Errors::Other(format!("{:?}", e)))?;
Ok(())
}
}
struct Receiver<T: Send + Stream> {
inner: T,
}
#[async_trait]
impl<T: Send + Stream<Item = Result<String, std::io::Error>> + Unpin + 'static> TransportReceiverT
for Receiver<T>
{
type Error = Errors;
async fn receive(&mut self) -> Result<ReceivedMessage, Self::Error> {
match self.inner.next().await {
None => Err(Errors::Closed),
Some(Ok(msg)) => Ok(ReceivedMessage::Text(msg)),
Some(Err(e)) => Err(Errors::Other(format!("{:?}", e))),
}
}
}

78
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/*
* This work is adapted from signal-cli (https://github.com/AsamK/signal-cli/)
* Copyright (C) 2024 AsamK
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use bytes::BytesMut;
use std::{io, str};
use tokio_util::codec::{Decoder, Encoder};
type Separator = u8;
/// Stream codec for streaming protocols (ipc, tcp)
#[derive(Debug, Default)]
pub struct StreamCodec {
incoming_separator: Separator,
outgoing_separator: Separator,
}
impl StreamCodec {
/// Default codec with streaming input data. Input can be both enveloped and not.
pub fn stream_incoming() -> Self {
StreamCodec::new(b'\n', b'\n')
}
/// New custom stream codec
pub fn new(incoming_separator: Separator, outgoing_separator: Separator) -> Self {
StreamCodec {
incoming_separator,
outgoing_separator,
}
}
}
impl Decoder for StreamCodec {
type Item = String;
type Error = io::Error;
fn decode(&mut self, buf: &mut BytesMut) -> io::Result<Option<Self::Item>> {
if let Some(i) = buf
.as_ref()
.iter()
.position(|&b| b == self.incoming_separator)
{
let line = buf.split_to(i);
let _ = buf.split_to(1);
match str::from_utf8(line.as_ref()) {
Ok(s) => Ok(Some(s.to_string())),
Err(_) => Err(io::Error::new(io::ErrorKind::Other, "invalid UTF-8")),
}
} else {
Ok(None)
}
}
}
impl Encoder<String> for StreamCodec {
type Error = io::Error;
fn encode(&mut self, msg: String, buf: &mut BytesMut) -> io::Result<()> {
let mut payload = msg.into_bytes();
payload.push(self.outgoing_separator);
buf.extend_from_slice(&payload);
Ok(())
}
}