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|
use super::Action;
use crate::message::MessageConfig;
use crate::message::MessageParams;
use anyhow::{Context, Result};
use async_scoped::TokioScope;
use async_trait::async_trait;
use const_format::formatcp;
use nostr_relay_pool::RelayOptions;
use nostr_sdk::nips::nip05;
use nostr_sdk::serde_json::from_reader;
use nostr_sdk::serde_json::to_string;
use nostr_sdk::Client;
use nostr_sdk::Keys;
use nostr_sdk::Metadata;
use nostr_sdk::PublicKey;
use nostr_sdk::ToBech32;
use serde::Deserialize;
use serde::Serialize;
use std::fs::File;
use std::io::BufReader;
use std::io::Write;
use std::net::SocketAddr;
use std::path::PathBuf;
#[derive(Debug, Clone, Deserialize, Serialize)]
struct NostrData {
key: String,
metadata_set: bool,
}
impl Default for NostrData {
fn default() -> Self {
NostrData {
key: Keys::generate().secret_key().unwrap().to_bech32().unwrap(),
metadata_set: false,
}
}
}
fn get_nostr_data_filepath() -> PathBuf {
dirs::cache_dir()
.unwrap_or(PathBuf::from("cache"))
.join(env!("CARGO_PKG_NAME"))
.join("nostr.json")
}
fn get_nostr_data() -> Result<NostrData> {
let path = get_nostr_data_filepath();
match File::open(&path) {
Ok(file) => {
let reader = BufReader::new(file);
from_reader(reader)
.with_context(|| format!("cannot read nostr data from '{}'", path.display()))
}
Err(_) => {
let nostr_data = NostrData::default();
let mut file = File::create(&path)?;
file.write_all(to_string(&nostr_data)?.as_bytes())
.with_context(|| format!("could not write nostr data to '{}'", path.display()))?;
Ok(nostr_data)
}
}
}
fn get_default_relays() -> Vec<String> {
vec![
"wss://nostr.bitcoiner.social",
"wss://nostr.oxtr.dev",
"wss://nostr.orangepill.dev",
"wss://relay.damus.io",
]
.into_iter()
.map(String::from)
.collect()
}
fn get_default_bot_metadata() -> Metadata {
Metadata::new()
.name(formatcp!("{}bot", env!("CARGO_PKG_NAME")))
.display_name(formatcp!("{} bot", env!("CARGO_PKG_NAME")))
.about(env!("CARGO_PKG_DESCRIPTION"))
.website(env!("CARGO_PKG_REPOSITORY").parse().unwrap())
.picture("https://robohash.org/sentrumbot.png".parse().unwrap())
.banner(
"https://void.cat/d/HX1pPeqz21hvneLDibs5JD.webp"
.parse()
.unwrap(),
)
.lud06(formatcp!(
"https://sommerfeld.dev/.well-known/lnurlp/{}",
env!("CARGO_PKG_NAME")
))
.lud16(formatcp!("{}@sommerfeld.dev", env!("CARGO_PKG_NAME")))
}
fn mark_bot_metadata_as_set(mut nostr_data: NostrData) -> Result<()> {
let path = get_nostr_data_filepath();
nostr_data.metadata_set = true;
let mut file = File::create(&path)?;
file.write_all(to_string(&nostr_data)?.as_bytes())
.with_context(|| format!("could not write nostr data to '{}'", path.display()))?;
Ok(())
}
#[derive(Deserialize, Debug)]
pub struct NostrConfig {
#[serde(default = "get_default_relays")]
relays: Vec<String>,
proxy: Option<SocketAddr>,
#[serde(default = "get_default_bot_metadata")]
bot_metadata: Metadata,
#[serde(default)]
resend_bot_metadata: bool,
recipient: String,
#[serde(default)]
sealed_dm: bool,
}
impl NostrConfig {}
pub struct NostrAction<'a> {
message_config: &'a MessageConfig,
client: Client,
recipient: PublicKey,
sealed_dm: bool,
}
impl<'a> NostrAction<'a> {
pub async fn new(
message_config: &'a MessageConfig,
nostr_config: &'a NostrConfig,
) -> Result<Self> {
let nostr_data = get_nostr_data()?;
let keys = Keys::parse(&nostr_data.key)
.with_context(|| format!("could not parse nostr secret key '{}'", nostr_data.key))?;
let client = Client::new(&keys);
let relay_opts = RelayOptions::new().read(false).proxy(nostr_config.proxy);
TokioScope::scope_and_block(|s| {
for relay in nostr_config.relays.iter() {
s.spawn(client.add_relay_with_opts(relay.clone(), relay_opts.clone()));
}
});
client.connect().await;
if !nostr_data.metadata_set || nostr_config.resend_bot_metadata {
client.set_metadata(&nostr_config.bot_metadata).await?;
mark_bot_metadata_as_set(nostr_data)?;
}
let recipient = match PublicKey::parse(&nostr_config.recipient) {
Ok(p) => p,
Err(e) => {
nip05::get_profile(&nostr_config.recipient, nostr_config.proxy)
.await
.with_context(|| {
format!("invalid recipient '{}': {}", nostr_config.recipient, e)
})?
.public_key
}
};
Ok(Self {
message_config,
client,
recipient,
sealed_dm: nostr_config.sealed_dm,
})
}
}
#[async_trait]
impl Action<'_> for NostrAction<'_> {
async fn run(&self, params: Option<&MessageParams<'_, '_>>) -> Result<()> {
let subject = self.message_config.subject(params)?;
let body = self.message_config.body(params)?;
let message = format!("{}\n{}", subject, body);
if self.sealed_dm {
self.client
.send_sealed_msg(self.recipient, message, None)
.await?;
} else {
self.client
.send_direct_msg(self.recipient, message, None)
.await?;
}
Ok(())
}
}
|
