0340541002 2025-04-24 1: use crate::{
9adc69d514 2026-03-25 2: Arc,
0340541002 2025-04-24 3: command,
9adc69d514 2026-03-25 4: Mutex,
0340541002 2025-04-24 5: sql::Db,
9adc69d514 2026-03-25 6: tg_bot::{
3fd8c40aa8 2026-03-30 7: Callback,
9adc69d514 2026-03-25 8: MyMessage,
9adc69d514 2026-03-25 9: Tg,
9adc69d514 2026-03-25 10: },
0340541002 2025-04-24 11: };
1c444d34ff 2024-08-28 12:
9171c791eb 2021-11-13 13: use std::{
c1e27b74ed 2021-11-13 14: borrow::Cow,
9171c791eb 2021-11-13 15: collections::{
9171c791eb 2021-11-13 16: BTreeMap,
9171c791eb 2021-11-13 17: HashSet,
9171c791eb 2021-11-13 18: },
9adc69d514 2026-03-25 19: time::Duration,
44575a91d3 2025-07-09 20: };
44575a91d3 2025-07-09 21:
dc7c43b010 2026-01-01 22: use async_compat::Compat;
acb0a4ac54 2025-09-28 23: use chrono::{
acb0a4ac54 2025-09-28 24: DateTime,
acb0a4ac54 2025-09-28 25: Local,
44575a91d3 2025-07-09 26: };
5a4aab7687 2025-06-29 27: use lazy_static::lazy_static;
5a4aab7687 2025-06-29 28: use regex::Regex;
9c4f09193a 2026-01-09 29: use reqwest::header::LAST_MODIFIED;
9adc69d514 2026-03-25 30: use smol::Timer;
44575a91d3 2025-07-09 31: use stacked_errors::{
44575a91d3 2025-07-09 32: Result,
44575a91d3 2025-07-09 33: StackableErr,
44575a91d3 2025-07-09 34: anyhow,
44575a91d3 2025-07-09 35: bail,
44575a91d3 2025-07-09 36: };
9adc69d514 2026-03-25 37: use tgbot::{
9adc69d514 2026-03-25 38: handler::UpdateHandler,
9adc69d514 2026-03-25 39: types::{
3fd8c40aa8 2026-03-30 40: CallbackQuery,
9adc69d514 2026-03-25 41: ChatPeerId,
9adc69d514 2026-03-25 42: Command,
9adc69d514 2026-03-25 43: Update,
9adc69d514 2026-03-25 44: UpdateType,
9adc69d514 2026-03-25 45: UserPeerId,
9adc69d514 2026-03-25 46: },
9adc69d514 2026-03-25 47: };
9adc69d514 2026-03-25 48: use ttl_cache::TtlCache;
5a4aab7687 2025-06-29 49:
5a4aab7687 2025-06-29 50: lazy_static!{
5a4aab7687 2025-06-29 51: pub static ref RE_SPECIAL: Regex = Regex::new(r"([\-_*\[\]()~`>#+|{}\.!])").unwrap();
5a4aab7687 2025-06-29 52: }
5a4aab7687 2025-06-29 53:
7393d62235 2026-01-07 54: // This one does nothing except making sure only one token exists for each id
7393d62235 2026-01-07 55: pub struct Token {
7393d62235 2026-01-07 56: running: Arc<Mutex<HashSet<i32>>>,
7393d62235 2026-01-07 57: my_id: i32,
7393d62235 2026-01-07 58: }
7393d62235 2026-01-07 59:
7393d62235 2026-01-07 60: impl Token {
7393d62235 2026-01-07 61: /// Attempts to acquire a per-id token by inserting `my_id` into the shared `running` set.
7393d62235 2026-01-07 62: ///
7393d62235 2026-01-07 63: /// If the id was not already present, the function inserts it and returns `Some(Token)`.
7393d62235 2026-01-07 64: /// When the returned `Token` is dropped, the id will be removed from the `running` set,
7393d62235 2026-01-07 65: /// allowing subsequent acquisitions for the same id.
7393d62235 2026-01-07 66: ///
7393d62235 2026-01-07 67: /// # Parameters
7393d62235 2026-01-07 68: ///
7393d62235 2026-01-07 69: /// - `running`: Shared set tracking active ids.
7393d62235 2026-01-07 70: /// - `my_id`: Identifier to acquire a token for.
7393d62235 2026-01-07 71: ///
7393d62235 2026-01-07 72: /// # Returns
7393d62235 2026-01-07 73: ///
7393d62235 2026-01-07 74: /// `Ok(Token)` if the id was successfully acquired, `Error` if a token for the id is already active.
7393d62235 2026-01-07 75: async fn new (running: &Arc<Mutex<HashSet<i32>>>, my_id: i32) -> Result<Token> {
7393d62235 2026-01-07 76: let running = running.clone();
7393d62235 2026-01-07 77: let mut set = running.lock_arc().await;
7393d62235 2026-01-07 78: if set.contains(&my_id) {
7393d62235 2026-01-07 79: bail!("Token already taken");
7393d62235 2026-01-07 80: } else {
7393d62235 2026-01-07 81: set.insert(my_id);
7393d62235 2026-01-07 82: Ok(Token {
7393d62235 2026-01-07 83: running,
7393d62235 2026-01-07 84: my_id,
7393d62235 2026-01-07 85: })
7393d62235 2026-01-07 86: }
7393d62235 2026-01-07 87: }
7393d62235 2026-01-07 88: }
7393d62235 2026-01-07 89:
7393d62235 2026-01-07 90: impl Drop for Token {
7393d62235 2026-01-07 91: /// Releases this token's claim on the shared running-set when the token is dropped.
7393d62235 2026-01-07 92: ///
7393d62235 2026-01-07 93: /// The token's identifier is removed from the shared `running` set so that future
7393d62235 2026-01-07 94: /// operations for the same id may proceed.
7393d62235 2026-01-07 95: ///
7393d62235 2026-01-07 96: /// TODO: is using block_on inside block_on safe? Currently tested and working fine.
7393d62235 2026-01-07 97: fn drop (&mut self) {
7393d62235 2026-01-07 98: smol::block_on(async {
7393d62235 2026-01-07 99: let mut set = self.running.lock_arc().await;
7393d62235 2026-01-07 100: set.remove(&self.my_id);
7393d62235 2026-01-07 101: })
7393d62235 2026-01-07 102: }
5a4aab7687 2025-06-29 103: }
7393d62235 2026-01-07 104:
be0b8602d1 2026-04-18 105: pub type FeedList = BTreeMap<i32, String>;
9adc69d514 2026-03-25 106: type UserCache = TtlCache<i64, Arc<Mutex<FeedList>>>;
9adc69d514 2026-03-25 107:
9171c791eb 2021-11-13 108: #[derive(Clone)]
9171c791eb 2021-11-13 109: pub struct Core {
9c4f09193a 2026-01-09 110: pub tg: Tg,
0340541002 2025-04-24 111: pub db: Db,
9adc69d514 2026-03-25 112: pub feeds: Arc<Mutex<UserCache>>,
7393d62235 2026-01-07 113: running: Arc<Mutex<HashSet<i32>>>,
45e34762e4 2023-05-28 114: http_client: reqwest::Client,
45e34762e4 2023-05-28 115: }
45e34762e4 2023-05-28 116:
dc7c43b010 2026-01-01 117: pub struct Post {
dc7c43b010 2026-01-01 118: uri: String,
9c4f09193a 2026-01-09 119: _title: String,
9c4f09193a 2026-01-09 120: _authors: String,
9c4f09193a 2026-01-09 121: _summary: String,
dc7c43b010 2026-01-01 122: }
dc7c43b010 2026-01-01 123:
9171c791eb 2021-11-13 124: impl Core {
7393d62235 2026-01-07 125: /// Create a Core instance from configuration and start its background autofetch loop.
7393d62235 2026-01-07 126: ///
7393d62235 2026-01-07 127: /// The provided `settings` must include:
fabcca1eaf 2026-01-09 128: /// - `owner` (integer): default chat id to use as the owner/destination,
7393d62235 2026-01-07 129: /// - `api_key` (string): Telegram bot API key,
7393d62235 2026-01-07 130: /// - `api_gateway` (string): Telegram API gateway host,
7393d62235 2026-01-07 131: /// - `pg` (string): PostgreSQL connection string,
7393d62235 2026-01-07 132: /// - optional `proxy` (string): proxy URL for the HTTP client.
7393d62235 2026-01-07 133: ///
7393d62235 2026-01-07 134: /// On success returns an initialized `Core` with Telegram and HTTP clients, database connection,
7393d62235 2026-01-07 135: /// an empty running set for per-id tokens, and a spawned background task that periodically runs
7393d62235 2026-01-07 136: /// `autofetch`. If any required setting is missing or initialization fails, an error is returned.
0340541002 2025-04-24 137: pub async fn new(settings: config::Config) -> Result<Core> {
45e34762e4 2023-05-28 138: let mut client = reqwest::Client::builder();
9d8a6738fd 2023-07-30 139: if let Ok(proxy) = settings.get_string("proxy") {
44575a91d3 2025-07-09 140: let proxy = reqwest::Proxy::all(proxy).stack()?;
45e34762e4 2023-05-28 141: client = client.proxy(proxy);
45e34762e4 2023-05-28 142: }
9c4f09193a 2026-01-09 143:
0340541002 2025-04-24 144: let core = Core {
9c4f09193a 2026-01-09 145: tg: Tg::new(&settings).await.stack()?,
44575a91d3 2025-07-09 146: db: Db::new(&settings.get_string("pg").stack()?)?,
9adc69d514 2026-03-25 147: feeds: Arc::new(Mutex::new(TtlCache::new(10000))),
7393d62235 2026-01-07 148: running: Arc::new(Mutex::new(HashSet::new())),
9c4f09193a 2026-01-09 149: http_client: client.build().stack()?,
0340541002 2025-04-24 150: };
9c4f09193a 2026-01-09 151:
bb89b6fab8 2025-06-15 152: let clone = core.clone();
dc7c43b010 2026-01-01 153: smol::spawn(Compat::new(async move {
26339860ce 2022-02-13 154: loop {
26339860ce 2022-02-13 155: let delay = match &clone.autofetch().await {
26339860ce 2022-02-13 156: Err(err) => {
9adc69d514 2026-03-25 157: if let Err(err) = clone.tg.send(MyMessage::html(format!("🛑 {err}"))).await {
e624ef9d66 2025-04-20 158: eprintln!("Autofetch error: {err:?}");
26339860ce 2022-02-13 159: };
cb86e770f9 2022-03-15 160: std::time::Duration::from_secs(60)
26339860ce 2022-02-13 161: },
26339860ce 2022-02-13 162: Ok(time) => *time,
9171c791eb 2021-11-13 163: };
dc7c43b010 2026-01-01 164: Timer::after(delay).await;
9171c791eb 2021-11-13 165: }
dc7c43b010 2026-01-01 166: })).detach();
9171c791eb 2021-11-13 167: Ok(core)
9171c791eb 2021-11-13 168: }
9171c791eb 2021-11-13 169:
7393d62235 2026-01-07 170: /// Fetches the feed for a source, sends any newly discovered posts to the appropriate chat, and records them in the database.
7393d62235 2026-01-07 171: ///
7393d62235 2026-01-07 172: /// This acquires a per-source guard to prevent concurrent checks for the same `id`. If a check is already running for
7393d62235 2026-01-07 173: /// the given `id`, the function returns an error. If `last_scrape` is provided, it is sent as the `If-Modified-Since`
7393d62235 2026-01-07 174: /// header to the feed request. The function parses RSS or Atom feeds, sends unseen post URLs to either the source's
7393d62235 2026-01-07 175: /// channel (when `real` is true) or the source owner (when `real` is false), and persists posted entries so they are
7393d62235 2026-01-07 176: /// not reposted later.
7393d62235 2026-01-07 177: ///
7393d62235 2026-01-07 178: /// Parameters:
7393d62235 2026-01-07 179: /// - `id`: Identifier of the source to check.
7393d62235 2026-01-07 180: /// - `real`: When `true`, send posts to the source's channel; when `false`, send to the source owner.
7393d62235 2026-01-07 181: /// - `last_scrape`: Optional timestamp used to set the `If-Modified-Since` header for the HTTP request.
7393d62235 2026-01-07 182: ///
7393d62235 2026-01-07 183: /// # Returns
7393d62235 2026-01-07 184: ///
7393d62235 2026-01-07 185: /// `Posted: N` where `N` is the number of posts processed and sent.
acb0a4ac54 2025-09-28 186: pub async fn check (&self, id: i32, real: bool, last_scrape: Option<DateTime<Local>>) -> Result<String> {
44575a91d3 2025-07-09 187: let mut posted: i32 = 0;
44575a91d3 2025-07-09 188: let mut conn = self.db.begin().await.stack()?;
44575a91d3 2025-07-09 189:
7393d62235 2026-01-07 190: let _token = Token::new(&self.running, id).await.stack()?;
9c4f09193a 2026-01-09 191: let source = conn.get_source(id, self.tg.owner).await.stack()?;
7393d62235 2026-01-07 192: conn.set_scrape(id).await.stack()?;
7393d62235 2026-01-07 193: let destination = ChatPeerId::from(match real {
7393d62235 2026-01-07 194: true => source.channel_id,
7393d62235 2026-01-07 195: false => source.owner,
7393d62235 2026-01-07 196: });
7393d62235 2026-01-07 197: let mut this_fetch: Option<DateTime<chrono::FixedOffset>> = None;
7393d62235 2026-01-07 198: let mut posts: BTreeMap<DateTime<chrono::FixedOffset>, Post> = BTreeMap::new();
7393d62235 2026-01-07 199:
7393d62235 2026-01-07 200: let mut builder = self.http_client.get(&source.url);
7393d62235 2026-01-07 201: if let Some(last_scrape) = last_scrape {
7393d62235 2026-01-07 202: builder = builder.header(LAST_MODIFIED, last_scrape.to_rfc2822());
7393d62235 2026-01-07 203: };
7393d62235 2026-01-07 204: let response = builder.send().await.stack()?;
7393d62235 2026-01-07 205: #[cfg(debug_assertions)]
7393d62235 2026-01-07 206: {
9c4f09193a 2026-01-09 207: use reqwest::header::{
9c4f09193a 2026-01-09 208: CACHE_CONTROL,
9c4f09193a 2026-01-09 209: EXPIRES,
9c4f09193a 2026-01-09 210: };
7393d62235 2026-01-07 211: let headers = response.headers();
7393d62235 2026-01-07 212: let expires = headers.get(EXPIRES);
7393d62235 2026-01-07 213: let cache = headers.get(CACHE_CONTROL);
7393d62235 2026-01-07 214: if expires.is_some() || cache.is_some() {
7393d62235 2026-01-07 215: println!("{} {} {:?} {:?} {:?}", Local::now().to_rfc2822(), &source.url, last_scrape, expires, cache);
7393d62235 2026-01-07 216: }
7393d62235 2026-01-07 217: }
7393d62235 2026-01-07 218: let status = response.status();
7393d62235 2026-01-07 219: let content = response.bytes().await.stack()?;
7393d62235 2026-01-07 220: match rss::Channel::read_from(&content[..]) {
7393d62235 2026-01-07 221: Ok(feed) => {
7393d62235 2026-01-07 222: for item in feed.items() {
7393d62235 2026-01-07 223: if let Some(link) = item.link() {
7393d62235 2026-01-07 224: let date = match item.pub_date() {
7393d62235 2026-01-07 225: Some(feed_date) => DateTime::parse_from_rfc2822(feed_date),
7393d62235 2026-01-07 226: None => DateTime::parse_from_rfc3339(match item.dublin_core_ext() {
7393d62235 2026-01-07 227: Some(ext) => {
7393d62235 2026-01-07 228: let dates = ext.dates();
7393d62235 2026-01-07 229: if dates.is_empty() {
7393d62235 2026-01-07 230: bail!("Feed item has Dublin Core extension but no dates.")
7393d62235 2026-01-07 231: } else {
7393d62235 2026-01-07 232: &dates[0]
7393d62235 2026-01-07 233: }
7393d62235 2026-01-07 234: },
7393d62235 2026-01-07 235: None => bail!("Feed item misses posting date."),
7393d62235 2026-01-07 236: }),
7393d62235 2026-01-07 237: }.stack()?;
7393d62235 2026-01-07 238: posts.insert(date, Post{
9c4f09193a 2026-01-09 239: uri: link.to_string(),
9c4f09193a 2026-01-09 240: _title: item.title().unwrap_or("").to_string(),
9c4f09193a 2026-01-09 241: _authors: item.author().unwrap_or("").to_string(),
9c4f09193a 2026-01-09 242: _summary: item.content().unwrap_or("").to_string(),
7393d62235 2026-01-07 243: });
7393d62235 2026-01-07 244: }
7393d62235 2026-01-07 245: };
7393d62235 2026-01-07 246: },
7393d62235 2026-01-07 247: Err(err) => match err {
7393d62235 2026-01-07 248: rss::Error::InvalidStartTag => {
7393d62235 2026-01-07 249: match atom_syndication::Feed::read_from(&content[..]) {
7393d62235 2026-01-07 250: Ok(feed) => {
7393d62235 2026-01-07 251: for item in feed.entries() {
7393d62235 2026-01-07 252: let date = item.published()
7393d62235 2026-01-07 253: .stack_err("Feed item missing publishing date.")?;
7393d62235 2026-01-07 254: let uri = {
7393d62235 2026-01-07 255: let links = item.links();
7393d62235 2026-01-07 256: if links.is_empty() {
7393d62235 2026-01-07 257: bail!("Feed item missing post links.");
7393d62235 2026-01-07 258: } else {
7393d62235 2026-01-07 259: links[0].href().to_string()
7393d62235 2026-01-07 260: }
7393d62235 2026-01-07 261: };
9c4f09193a 2026-01-09 262: let _authors = item.authors().iter().map(|x| format!("{} <{:?}>", x.name(), x.email())).collect::<Vec<String>>().join(", ");
9c4f09193a 2026-01-09 263: let _summary = if let Some(sum) = item.summary() { sum.value.clone() } else { String::new() };
7393d62235 2026-01-07 264: posts.insert(*date, Post{
7393d62235 2026-01-07 265: uri,
9c4f09193a 2026-01-09 266: _title: item.title().to_string(),
9c4f09193a 2026-01-09 267: _authors,
9c4f09193a 2026-01-09 268: _summary,
7393d62235 2026-01-07 269: });
7393d62235 2026-01-07 270: };
7393d62235 2026-01-07 271: },
7393d62235 2026-01-07 272: Err(err) => {
7393d62235 2026-01-07 273: bail!("Unsupported or mangled content:\n{:?}\n{err}\n{status:#?}\n", &source.url)
7393d62235 2026-01-07 274: },
7393d62235 2026-01-07 275: }
7393d62235 2026-01-07 276: },
7393d62235 2026-01-07 277: rss::Error::Eof => (),
7393d62235 2026-01-07 278: _ => bail!("Unsupported or mangled content:\n{:?}\n{err}\n{status:#?}\n", &source.url)
7393d62235 2026-01-07 279: }
7393d62235 2026-01-07 280: };
7393d62235 2026-01-07 281: for (date, post) in posts.iter() {
7393d62235 2026-01-07 282: let post_url: Cow<str> = match source.url_re {
7393d62235 2026-01-07 283: Some(ref x) => sedregex::ReplaceCommand::new(x).stack()?.execute(&post.uri),
7393d62235 2026-01-07 284: None => post.uri.clone().into(),
7393d62235 2026-01-07 285: };
7393d62235 2026-01-07 286: if ! conn.exists(&post_url, id).await.stack()? {
7393d62235 2026-01-07 287: if this_fetch.is_none() || *date > this_fetch.unwrap() {
7393d62235 2026-01-07 288: this_fetch = Some(*date);
7393d62235 2026-01-07 289: };
9adc69d514 2026-03-25 290: self.tg.send(MyMessage::html_to(match &source.iv_hash {
7393d62235 2026-01-07 291: Some(hash) => format!("<a href=\"https://t.me/iv?url={post_url}&rhash={hash}\"> </a>{post_url}"),
7393d62235 2026-01-07 292: None => format!("{post_url}"),
9adc69d514 2026-03-25 293: }, destination)).await.stack()?;
7393d62235 2026-01-07 294: conn.add_post(id, date, &post_url).await.stack()?;
fae13a0e55 2025-06-28 295: posted += 1;
fae13a0e55 2025-06-28 296: };
fae13a0e55 2025-06-28 297: };
7393d62235 2026-01-07 298: posts.clear();
0340541002 2025-04-24 299: Ok(format!("Posted: {posted}"))
0340541002 2025-04-24 300: }
0340541002 2025-04-24 301:
fabcca1eaf 2026-01-09 302: /// Determine the delay until the next scheduled fetch and spawn background checks for any overdue sources.
fabcca1eaf 2026-01-09 303: ///
fabcca1eaf 2026-01-09 304: /// This scans the database queue, spawns background tasks to run checks for sources whose `next_fetch`
fabcca1eaf 2026-01-09 305: /// is in the past (each task uses a Core clone with the appropriate owner), and computes the shortest
fabcca1eaf 2026-01-09 306: /// duration until the next `next_fetch`.
bb89b6fab8 2025-06-15 307: async fn autofetch(&self) -> Result<std::time::Duration> {
9910c2209c 2023-08-04 308: let mut delay = chrono::Duration::minutes(1);
9910c2209c 2023-08-04 309: let now = chrono::Local::now();
bb89b6fab8 2025-06-15 310: let queue = {
44575a91d3 2025-07-09 311: let mut conn = self.db.begin().await.stack()?;
44575a91d3 2025-07-09 312: conn.get_queue().await.stack()?
bb89b6fab8 2025-06-15 313: };
bb89b6fab8 2025-06-15 314: for row in queue {
9910c2209c 2023-08-04 315: if let Some(next_fetch) = row.next_fetch {
9910c2209c 2023-08-04 316: if next_fetch < now {
acb0a4ac54 2025-09-28 317: if let (Some(owner), Some(source_id), last_scrape) = (row.owner, row.source_id, row.last_scrape) {
bb89b6fab8 2025-06-15 318: let clone = Core {
9c4f09193a 2026-01-09 319: tg: self.tg.with_owner(owner),
9910c2209c 2023-08-04 320: ..self.clone()
9910c2209c 2023-08-04 321: };
b4af85e31b 2025-06-29 322: let source = {
44575a91d3 2025-07-09 323: let mut conn = self.db.begin().await.stack()?;
b4af85e31b 2025-06-29 324: match conn.get_one(owner, source_id).await {
b4af85e31b 2025-06-29 325: Ok(Some(source)) => source.to_string(),
7393d62235 2026-01-07 326: Ok(None) => "Source not found in database?".to_string(),
b4af85e31b 2025-06-29 327: Err(err) => format!("Failed to fetch source data:\n{err}"),
b4af85e31b 2025-06-29 328: }
b4af85e31b 2025-06-29 329: };
dc7c43b010 2026-01-01 330: smol::spawn(Compat::new(async move {
9c4f09193a 2026-01-09 331: if let Err(err) = clone.check(source_id, true, Some(last_scrape)).await
3fd8c40aa8 2026-03-30 332: && let Err(err) = clone.tg.send(MyMessage::html(format!("🛑 {source}\n<pre>{}</pre>", &err.to_string()))).await
9c4f09193a 2026-01-09 333: {
9c4f09193a 2026-01-09 334: eprintln!("Check error: {err}");
dc7c43b010 2026-01-01 335: };
dc7c43b010 2026-01-01 336: })).detach();
9910c2209c 2023-08-04 337: }
9910c2209c 2023-08-04 338: } else if next_fetch - now < delay {
9910c2209c 2023-08-04 339: delay = next_fetch - now;
9910c2209c 2023-08-04 340: }
9910c2209c 2023-08-04 341: }
9910c2209c 2023-08-04 342: };
44575a91d3 2025-07-09 343: delay.to_std().stack()
b4af85e31b 2025-06-29 344: }
b4af85e31b 2025-06-29 345:
9adc69d514 2026-03-25 346: /// Displays full list of managed channels for specified user
b4af85e31b 2025-06-29 347: pub async fn list (&self, owner: UserPeerId) -> Result<String> {
b4af85e31b 2025-06-29 348: let mut reply: Vec<String> = vec![];
b4af85e31b 2025-06-29 349: reply.push("Channels:".into());
44575a91d3 2025-07-09 350: let mut conn = self.db.begin().await.stack()?;
44575a91d3 2025-07-09 351: for row in conn.get_list(owner).await.stack()? {
b4af85e31b 2025-06-29 352: reply.push(row.to_string());
b4af85e31b 2025-06-29 353: };
b4af85e31b 2025-06-29 354: Ok(reply.join("\n\n"))
9adc69d514 2026-03-25 355: }
9adc69d514 2026-03-25 356:
9adc69d514 2026-03-25 357: /// Returns current cached list of feed for requested user, or loads data from database
3fd8c40aa8 2026-03-30 358: pub async fn get_feeds (&self, owner: i64) -> Result<Arc<Mutex<FeedList>>> {
9adc69d514 2026-03-25 359: let mut feeds = self.feeds.lock_arc().await;
9adc69d514 2026-03-25 360: Ok(match feeds.get(&owner) {
9adc69d514 2026-03-25 361: None => {
374eadef45 2026-03-28 362: let mut conn = self.db.begin().await.stack()?;
9adc69d514 2026-03-25 363: let feed_list = conn.get_feeds(owner).await.stack()?;
be0b8602d1 2026-04-18 364: let mut map = BTreeMap::new();
9adc69d514 2026-03-25 365: for feed in feed_list {
9adc69d514 2026-03-25 366: map.insert(feed.source_id, feed.channel);
9adc69d514 2026-03-25 367: };
9adc69d514 2026-03-25 368: let res = Arc::new(Mutex::new(map));
9adc69d514 2026-03-25 369: feeds.insert(owner, res.clone(), Duration::from_secs(60 * 60 * 3));
9adc69d514 2026-03-25 370: res
9adc69d514 2026-03-25 371: },
9adc69d514 2026-03-25 372: Some(res) => res.clone(),
9adc69d514 2026-03-25 373: })
9adc69d514 2026-03-25 374: }
9adc69d514 2026-03-25 375:
9adc69d514 2026-03-25 376: /// Adds feed to cached list
9adc69d514 2026-03-25 377: pub async fn add_feed (&self, owner: i64, source_id: i32, channel: String) -> Result<()> {
9adc69d514 2026-03-25 378: let mut inserted = true;
9adc69d514 2026-03-25 379: {
9adc69d514 2026-03-25 380: let mut feeds = self.feeds.lock_arc().await;
9adc69d514 2026-03-25 381: if let Some(feed) = feeds.get_mut(&owner) {
9adc69d514 2026-03-25 382: let mut feed = feed.lock_arc().await;
9adc69d514 2026-03-25 383: feed.insert(source_id, channel);
9adc69d514 2026-03-25 384: } else {
9adc69d514 2026-03-25 385: inserted = false;
9adc69d514 2026-03-25 386: }
9adc69d514 2026-03-25 387: }
374eadef45 2026-03-28 388: // in case insert failed - we miss the entry we needed to expand, reload everything from
374eadef45 2026-03-28 389: // database
9adc69d514 2026-03-25 390: if !inserted {
9adc69d514 2026-03-25 391: self.get_feeds(owner).await.stack()?;
9adc69d514 2026-03-25 392: }
9adc69d514 2026-03-25 393: Ok(())
9adc69d514 2026-03-25 394: }
9adc69d514 2026-03-25 395:
9adc69d514 2026-03-25 396: /// Removes feed from cached list
9adc69d514 2026-03-25 397: pub async fn rm_feed (&self, owner: i64, source_id: &i32) -> Result<()> {
9adc69d514 2026-03-25 398: let mut dropped = false;
9adc69d514 2026-03-25 399: {
9adc69d514 2026-03-25 400: let mut feeds = self.feeds.lock_arc().await;
9adc69d514 2026-03-25 401: if let Some(feed) = feeds.get_mut(&owner) {
9adc69d514 2026-03-25 402: let mut feed = feed.lock_arc().await;
9adc69d514 2026-03-25 403: feed.remove(source_id);
9adc69d514 2026-03-25 404: dropped = true;
9adc69d514 2026-03-25 405: }
9adc69d514 2026-03-25 406: }
374eadef45 2026-03-28 407: // in case we failed to found feed we need to remove - just reload everything from database
9adc69d514 2026-03-25 408: if !dropped {
9adc69d514 2026-03-25 409: self.get_feeds(owner).await.stack()?;
9adc69d514 2026-03-25 410: }
374eadef45 2026-03-28 411: Ok(())
374eadef45 2026-03-28 412: }
3fd8c40aa8 2026-03-30 413:
3fd8c40aa8 2026-03-30 414: pub async fn cb (&self, query: &CallbackQuery, cb: &str) -> Result<()> {
3fd8c40aa8 2026-03-30 415: let cb: Callback = toml::from_str(cb).stack()?;
3fd8c40aa8 2026-03-30 416: todo!();
3fd8c40aa8 2026-03-30 417: Ok(())
3fd8c40aa8 2026-03-30 418: }
bb89b6fab8 2025-06-15 419: }
bb89b6fab8 2025-06-15 420:
bb89b6fab8 2025-06-15 421: impl UpdateHandler for Core {
fabcca1eaf 2026-01-09 422: /// Dispatches an incoming Telegram update to a matching command handler and reports handler errors to the originating chat.
fabcca1eaf 2026-01-09 423: ///
fabcca1eaf 2026-01-09 424: /// This method inspects the update; if it contains a message that can be parsed as a bot command,
fabcca1eaf 2026-01-09 425: /// it executes the corresponding command handler. If the handler returns an error, the error text
13265e7697 2026-01-10 426: /// is sent back to the message's chat using MarkdownV2 formatting. Unknown commands produce an error
fabcca1eaf 2026-01-09 427: /// which is also reported to the chat.
3fd8c40aa8 2026-03-30 428: async fn handle (&self, update: Update) -> () {
3fd8c40aa8 2026-03-30 429: match update.update_type {
3fd8c40aa8 2026-03-30 430: UpdateType::Message(msg) => {
3fd8c40aa8 2026-03-30 431: if let Ok(cmd) = Command::try_from(*msg) {
3fd8c40aa8 2026-03-30 432: let msg = cmd.get_message();
3fd8c40aa8 2026-03-30 433: let words = cmd.get_args();
3fd8c40aa8 2026-03-30 434: let command = cmd.get_name();
3fd8c40aa8 2026-03-30 435: let res = match command {
3fd8c40aa8 2026-03-30 436: "/check" | "/clean" | "/enable" | "/delete" | "/disable" => command::command(self, command, msg, words).await,
3fd8c40aa8 2026-03-30 437: "/start" => command::start(self, msg).await,
3fd8c40aa8 2026-03-30 438: "/list" => command::list(self, msg).await,
3fd8c40aa8 2026-03-30 439: "/test" => command::test(self, msg).await,
3fd8c40aa8 2026-03-30 440: "/add" | "/update" => command::update(self, command, msg, words).await,
3fd8c40aa8 2026-03-30 441: any => Err(anyhow!("Unknown command: {any}")),
3fd8c40aa8 2026-03-30 442: };
3fd8c40aa8 2026-03-30 443: if let Err(err) = res
3fd8c40aa8 2026-03-30 444: && let Err(err2) = self.tg.send(MyMessage::html_to(
3fd8c40aa8 2026-03-30 445: format!("#error<pre>{err}</pre>"),
3fd8c40aa8 2026-03-30 446: msg.chat.get_id(),
3fd8c40aa8 2026-03-30 447: )).await
3fd8c40aa8 2026-03-30 448: {
3fd8c40aa8 2026-03-30 449: dbg!(err2);
3fd8c40aa8 2026-03-30 450: }
3fd8c40aa8 2026-03-30 451: } else {
3fd8c40aa8 2026-03-30 452: // not a command
3fd8c40aa8 2026-03-30 453: }
3fd8c40aa8 2026-03-30 454: },
3fd8c40aa8 2026-03-30 455: UpdateType::CallbackQuery(query) => {
3fd8c40aa8 2026-03-30 456: if let Some(ref cb) = query.data
3fd8c40aa8 2026-03-30 457: && let Err(err) = self.cb(&query, cb).await
be0b8602d1 2026-04-18 458: && let Err(err) = self.tg.answer_cb(query.id, err.to_string()).await
3fd8c40aa8 2026-03-30 459: {
be0b8602d1 2026-04-18 460: println!("{err:?}");
3fd8c40aa8 2026-03-30 461: }
3fd8c40aa8 2026-03-30 462: },
3fd8c40aa8 2026-03-30 463: _ => {
3fd8c40aa8 2026-03-30 464: println!("Unhandled UpdateKind:\n{update:?}")
3fd8c40aa8 2026-03-30 465: },
3fd8c40aa8 2026-03-30 466: }
e624ef9d66 2025-04-20 467: }
9171c791eb 2021-11-13 468: }