commit 877f797926a63d43103d0bbca7d0c1b87ac73864
Author: LordMZTE <lord@mzte.de>
Date:   Tue Jan 12 00:44:51 2021 +0100

    init

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..07a1e39
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+/target
+Cargo.lock
+
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..6364941
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,40 @@
+[package]
+name = "ruff"
+version = "0.1.0"
+authors = ["LordMZTE <lord@mzte.de>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0"
+async-trait = "0.1.42"
+bytes = "0.5"
+chrono = "0.4.19"
+clap = "2.33.3"
+dirs = "3.0.1"
+fern = "0.6.0"
+log = "0.4.13"
+once_cell = "1.5.2"
+pin-project-lite = "0.2.4"
+serde_json = "1.0.61"
+structopt = "0.3.21"
+thiserror = "1.0.23"
+toml = "0.5.8"
+
+[dependencies.tokio]
+version = "0.2"
+features = [
+    "macros",
+    "fs",
+    "stream",
+]
+
+[dependencies.serde]
+version = "1.0"
+features = ["derive"]
+
+[dependencies.reqwest]
+version = "0.10"
+features = ["stream"]
+
diff --git a/defaultconfig.toml b/defaultconfig.toml
new file mode 100644
index 0000000..2e0b048
--- /dev/null
+++ b/defaultconfig.toml
@@ -0,0 +1,42 @@
+# The nickname to be used
+nickname = "RUFF"
+# what matterbridge gateways the bot should work on
+gateways = ["gateway1"]
+# the api endpoint the bot should use
+api = "http://localhost:4242/api"
+
+[memes]
+uffat = "https://jensmemes.tilera.xyz/images/584309714544fbe5961cdb4ddbc880d0/uffat.png"
+uffgo = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/uffgothon.png"
+hey = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/jensgenervt.PNG"
+uffch = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/uffch.png"
+drogen = "https://jensmemes.tilera.xyz/images/000/drogen.PNG"
+kappa = "https://jensmemes.tilera.xyz/images/d41d8cd98f00b204e9800998ecf8427e/jensKappa%20-%20Kopie%20-%20Kopie.png"
+hendrik = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/hendrik.png"
+ufflie = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/ufflie.png"
+uffns = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/uffns.png"
+uffhs = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/uffhs.png"
+uffde = "https://jensmemes.tilera.xyz/images/000/uff.png"
+uffhre = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/uffhre.png"
+uffpy = "https://jensmemes.tilera.xyz/images/48f8912f48b94a78b1f0cb939d69a52f/uffpy_ns.png"
+itbyhf = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/itbyhf.png"
+tilera = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/tilera.png"
+lordmzte = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/lord.png"
+realtox = "https://jensmemes.tilera.xyz/images/6c42dfd93466145a29b97854b394c62c/realtoxguthosting.jpg"
+jonasled = "https://jensmemes.tilera.xyz/images/584309714544fbe5961cdb4ddbc880d0/jonasled.png"
+sklave = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/versklavung.png"
+jens = "https://jensmemes.tilera.xyz/images/48f8912f48b94a78b1f0cb939d69a52f/jens_2.mp4"
+fresse = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/fresse.jpg"
+bastard = "https://jensmemes.tilera.xyz/images/d9d03ec0275ad5181bb1e3fc5cbc5205/fresse.jpg"
+uffsr = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/uffsr.png"
+party = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/party.mp4"
+uffrs = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/uffrs.png"
+uffjs = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/uffjs.png"
+uffkt = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/uffkt.png"
+uffj = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/uffj.png"
+ufftl = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/ufftl.png"
+uffhf = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/uffhf.png"
+uffmz = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/uffmz.png"
+uffal = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/uffal.png"
+alec = "https://jensmemes.tilera.xyz/images/e8453a9f812165a8686ad32c149774c6/alecmichdochamarsch.png"
+
diff --git a/rustfmt.toml b/rustfmt.toml
new file mode 100644
index 0000000..fb2722d
--- /dev/null
+++ b/rustfmt.toml
@@ -0,0 +1,13 @@
+unstable_features = true
+binop_separator = "Back"
+format_code_in_doc_comments = true
+format_macro_matchers = true
+format_strings = true
+imports_layout = "HorizontalVertical"
+match_block_trailing_comma = true
+merge_imports = true
+normalize_comments = true
+use_field_init_shorthand = true
+use_try_shorthand = true
+wrap_comments = true
+
diff --git a/src/api.rs b/src/api.rs
new file mode 100644
index 0000000..2abf806
--- /dev/null
+++ b/src/api.rs
@@ -0,0 +1,47 @@
+use serde::{
+    de::{Deserializer, Visitor},
+    Deserialize,
+    Serialize,
+};
+use std::fmt;
+
+#[derive(Deserialize, Serialize, Debug)]
+pub struct Message {
+    pub text: String,
+    pub username: String,
+    #[serde(skip_serializing)]
+    pub event: Option<Event>,
+    pub gateway: String,
+}
+
+#[derive(Debug)]
+pub enum Event {
+    ApiConnected,
+    Other(String),
+}
+
+impl<'de> Deserialize<'de> for Event {
+    fn deserialize<D>(deserializer: D) -> Result<Event, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        struct EventVisitor;
+
+        impl<'de> Visitor<'de> for EventVisitor {
+            type Value = Event;
+
+            fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+                formatter.write_str("an event type in the form of a string")
+            }
+
+            fn visit_str<E>(self, value: &str) -> Result<Self::Value, E> {
+                Ok(match value {
+                    "api_connected" => Event::ApiConnected,
+                    _ => Event::Other(value.into()),
+                })
+            }
+        }
+
+        deserializer.deserialize_str(EventVisitor)
+    }
+}
diff --git a/src/config.rs b/src/config.rs
new file mode 100644
index 0000000..3da391a
--- /dev/null
+++ b/src/config.rs
@@ -0,0 +1,37 @@
+use anyhow::{Context, Result};
+use once_cell::sync::OnceCell;
+use serde::Deserialize;
+use std::{collections::HashMap, path::PathBuf};
+
+#[derive(Deserialize)]
+pub struct Config {
+    pub nickname: String,
+    pub gateways: Vec<String>,
+    pub api: String,
+    pub memes: HashMap<String, String>,
+}
+
+static CONFIG: OnceCell<Config> = OnceCell::new();
+pub static CONFIG_PATH: OnceCell<PathBuf> = OnceCell::new();
+
+pub async fn try_get_config<'a>() -> Result<&'a Config> {
+    match CONFIG.get() {
+        None => {
+            log::info!("Initializing config");
+            let config = CONFIG_PATH.get_or_try_init::<_, anyhow::Error>(|| {
+                let mut config = dirs::config_dir().context("Failed to get config dir")?;
+                config.push("ruff/config.toml");
+                Ok(config)
+            })?;
+
+            if let Some(p) = config.to_str() {
+                log::info!("trying to read config at {}", p);
+            }
+
+            let bytes = tokio::fs::read(config).await?;
+            let config = toml::from_slice::<Config>(&bytes)?;
+            Ok(CONFIG.get_or_init(|| config))
+        },
+        Some(c) => Ok(c),
+    }
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..4d07257
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,245 @@
+use anyhow::{anyhow, Result};
+use api::{Event, Message};
+use bytes::Bytes;
+use pin_project_lite::pin_project;
+use reqwest::Client;
+use std::{
+    pin::Pin,
+    string::FromUtf8Error,
+    task::{Context, Poll},
+};
+use structopt::StructOpt;
+use thiserror::Error;
+use tokio::stream::{Stream, StreamExt};
+
+pub mod api;
+pub mod config;
+
+#[derive(StructOpt)]
+#[structopt(about = "The next generation uffbot for matterbridge!")]
+pub struct Opt {
+    #[structopt(
+        long,
+        short,
+        help = "Use the given config file instead of the default. (located at \
+                .config/ruff/config.toml)"
+    )]
+    config: Option<String>,
+}
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    fern::Dispatch::new()
+        .format(|out, message, record| {
+            out.finish(format_args!(
+                "{}[{}][{}] {}",
+                chrono::Local::now().format("[%Y-%m-%d][%H:%M:%S]"),
+                record.target(),
+                record.level(),
+                message
+            ))
+        })
+        .level(log::LevelFilter::Debug)
+        .chain(std::io::stdout())
+        .apply()?;
+
+    let client = Client::new();
+    let opt = Opt::from_args_safe()?;
+
+    if let Some(c) = opt.config {
+        let _ = config::CONFIG_PATH.set(c.into());
+    }
+
+    loop {
+        let mut stream = stream(&client).await?;
+
+        while let Some(msg) = stream.next().await {
+            if let Err(e) = next_message(&client, msg).await {
+                log::error!("Got error processing message: {}", e);
+            }
+        }
+
+        log::error!("Stream to server closed. restarting.");
+    }
+}
+
+#[derive(Debug, Error)]
+enum MessageProcessError {
+    #[error("Got error `{error}` trying to deserialize message:\n{data}")]
+    Deserialize {
+        error: serde_json::Error,
+        data: String,
+    },
+
+    #[error("Got Error `{error}` try to deserialize invalid UTF-8 data:\n{data:X?}")]
+    InvalidUtf8 { error: FromUtf8Error, data: Vec<u8> },
+}
+
+async fn next_message(client: &Client, raw_msg: Vec<u8>) -> Result<()> {
+    let s_data =
+        String::from_utf8(raw_msg.clone()).map_err(|error| MessageProcessError::InvalidUtf8 {
+            error,
+            data: raw_msg,
+        })?;
+    let message =
+        serde_json::from_str(&s_data).map_err(|error| MessageProcessError::Deserialize {
+            error,
+            data: s_data,
+        })?;
+
+    log::info!("Processing message {:?}", &message);
+    process_message(client, message).await
+}
+
+async fn process_message(client: &Client, message: Message) -> Result<()> {
+    let config = config::try_get_config().await?;
+    match message {
+        Message {
+            event: Some(Event::ApiConnected),
+            ..
+        } => log::info!("got api connected event"),
+        Message { text, gateway, .. } if config.gateways.contains(&gateway) && !text.is_empty() => {
+            if let Some(start) = text.split(" ").next() {
+                if let Some(meme) = config.memes.get(&start.to_lowercase()) {
+                    log::info!(
+                        r#"found meme matching message "{}". responding with "{}""#,
+                        text,
+                        &meme
+                    );
+
+                    let message = Message {
+                        text: meme.clone(),
+                        gateway,
+                        username: config.nickname.clone(),
+                        event: None,
+                    };
+
+                    send_message(client, &message).await?;
+                }
+            }
+        },
+        msg => log::warn!("Got unknown message: {:?}", msg),
+    }
+
+    Ok(())
+}
+
+async fn send_message(client: &Client, msg: &Message) -> Result<()> {
+    let config = config::try_get_config().await?;
+    log::info!("Sending message: {:?}", msg);
+    let res: Result<()> = {
+        let response = client
+            .post(&format!("{}/message", config.api))
+            .header("Content-Type", "application/json")
+            .body(serde_json::to_vec(&msg)?)
+            .send()
+            .await?;
+
+        log::info!(
+            "sent message. server responded with `{}`",
+            response.text().await?
+        );
+
+        Ok(())
+    };
+
+    res.map_err(|e| anyhow!("Error sending message:\n{}", e))
+}
+
+async fn stream(client: &Client) -> Result<impl Stream<Item = Vec<u8>>> {
+    let conf = config::try_get_config().await?;
+    let stream = client
+        .get(&format!("{}/stream", conf.api))
+        .send()
+        .await?
+        .bytes_stream();
+    Ok(NewlineStream::new(stream.filter_map(Result::ok)))
+}
+
+pin_project! {
+    struct NewlineStream<T: Stream<Item = Bytes>> {
+        #[pin]
+        inner: T,
+        buf: Vec<u8>,
+    }
+}
+
+impl<T: Stream<Item = Bytes>> Stream for NewlineStream<T> {
+    type Item = Vec<u8>;
+
+    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
+        loop {
+            let poll = self.as_mut().project().inner.poll_next(cx);
+            // if the inner stream is not done yet, we are not either
+            let poll = match poll {
+                Poll::Ready(x) => x,
+                Poll::Pending => return Poll::Pending,
+            };
+
+            match poll {
+                Some(i) => {
+                    let buf = &mut self.as_mut().project().buf;
+                    buf.extend(i.into_iter());
+
+                    let pos = match buf.iter().position(|&e| e == b'\n') {
+                        Some(n) => n,
+                        // if there is no newline yet, try again
+                        None => continue,
+                    };
+
+                    let result = Vec::from(&buf[0..pos]);
+                    **buf = Vec::from(&buf[1 + pos..]);
+
+                    return Poll::Ready(Some(result));
+                },
+                // if the inner stream had nothing, we return the buffer and are done
+                // in order to avoid an inifite loop when the inner stream is done, we clear the
+                // buffer and return None once the buffer has been output once
+                None => {
+                    if !self.buf.is_empty() {
+                        let buf = self.buf.clone();
+                        *self.as_mut().project().buf = vec![];
+                        return Poll::Ready(Some(buf));
+                    } else {
+                        return Poll::Ready(None);
+                    }
+                },
+            }
+        }
+    }
+}
+
+impl<T: Stream<Item = Bytes>> NewlineStream<T> {
+    pub fn new(stream: T) -> Self {
+        Self {
+            inner: stream,
+            buf: vec![],
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use bytes::Bytes;
+    use tokio::stream::StreamExt;
+
+    #[tokio::test]
+    async fn newline_stream() {
+        let stream = tokio::stream::iter(
+            vec![
+                Bytes::from("hello "),
+                Bytes::from("world"),
+                Bytes::from("\nfoobar"),
+            ]
+            .into_iter(),
+        );
+
+        let mut newline_stream = NewlineStream::new(stream);
+
+        assert_eq!(newline_stream.next().await, Some(b"hello world".to_vec()));
+        assert_eq!(newline_stream.next().await, Some(b"foobar".to_vec()));
+        assert_eq!(newline_stream.next().await, None);
+    }
+}
+
diff --git a/testenv/data/matterbridge/matterbridge.toml b/testenv/data/matterbridge/matterbridge.toml
new file mode 100644
index 0000000..77a8282
--- /dev/null
+++ b/testenv/data/matterbridge/matterbridge.toml
@@ -0,0 +1,24 @@
+[irc.testirc]
+# "irc" is the hostname of the irc container in docker-compose
+Server = "irc:6667"
+Nick = "bridge"
+RemoteNickFormat = "[{PROTOCOL}] <{NICK}> "
+
+[[gateway]]
+name = "gateway1"
+enable = true
+
+[[gateway.inout]]
+account = "irc.testirc"
+channel = "#testing"
+
+# api config
+[api.ruff]
+BindAddress = "0.0.0.0:4242"
+Buffer = 1000
+RemoteNickFormat = "{NICK}"
+
+[[gateway.inout]]
+account = "api.ruff"
+channel = "ruffapi"
+
diff --git a/testenv/docker-compose.yml b/testenv/docker-compose.yml
new file mode 100644
index 0000000..52db8aa
--- /dev/null
+++ b/testenv/docker-compose.yml
@@ -0,0 +1,15 @@
+version: "3.3"
+services:
+    matterbridge:
+        image: "42wim/matterbridge"
+        restart: "unless-stopped"
+        volumes:
+            - "./data/matterbridge:/etc/matterbridge"
+        ports:
+            - "4242:4242"
+
+    irc:
+        image: "inspircd/inspircd-docker"
+        ports: 
+            - "6667:6667"
+