0340541002 2025-04-24 1: use crate::{
0340541002 2025-04-24 2: command,
0340541002 2025-04-24 3: sql::Db,
0340541002 2025-04-24 4: };
1c444d34ff 2024-08-28 5:
9171c791eb 2021-11-13 6: use std::{
c1e27b74ed 2021-11-13 7: borrow::Cow,
9171c791eb 2021-11-13 8: collections::{
9171c791eb 2021-11-13 9: BTreeMap,
9171c791eb 2021-11-13 10: HashSet,
9171c791eb 2021-11-13 11: },
c6d3e97290 2025-07-01 12: };
c6d3e97290 2025-07-01 13:
c6d3e97290 2025-07-01 14: use async_std::{
c6d3e97290 2025-07-01 15: task,
1c444d34ff 2024-08-28 16: sync::{
1c444d34ff 2024-08-28 17: Arc,
1c444d34ff 2024-08-28 18: Mutex
1c444d34ff 2024-08-28 19: },
1c444d34ff 2024-08-28 20: };
bb89b6fab8 2025-06-15 21: use chrono::DateTime;
5a4aab7687 2025-06-29 22: use lazy_static::lazy_static;
5a4aab7687 2025-06-29 23: use regex::Regex;
bb89b6fab8 2025-06-15 24: use tgbot::{
bb89b6fab8 2025-06-15 25: api::Client,
bb89b6fab8 2025-06-15 26: handler::UpdateHandler,
bb89b6fab8 2025-06-15 27: types::{
bb89b6fab8 2025-06-15 28: Bot,
bb89b6fab8 2025-06-15 29: ChatPeerId,
bb89b6fab8 2025-06-15 30: Command,
bb89b6fab8 2025-06-15 31: GetBot,
bb89b6fab8 2025-06-15 32: Message,
bb89b6fab8 2025-06-15 33: ParseMode,
bb89b6fab8 2025-06-15 34: SendMessage,
bb89b6fab8 2025-06-15 35: Update,
bb89b6fab8 2025-06-15 36: UpdateType,
bb89b6fab8 2025-06-15 37: UserPeerId,
bb89b6fab8 2025-06-15 38: },
c6d3e97290 2025-07-01 39: };
44575a91d3 2025-07-09 40: use stacked_errors::{
44575a91d3 2025-07-09 41: Result,
44575a91d3 2025-07-09 42: StackableErr,
44575a91d3 2025-07-09 43: anyhow,
44575a91d3 2025-07-09 44: bail,
44575a91d3 2025-07-09 45: };
5a4aab7687 2025-06-29 46:
5a4aab7687 2025-06-29 47: lazy_static!{
5a4aab7687 2025-06-29 48: pub static ref RE_SPECIAL: Regex = Regex::new(r"([\-_*\[\]()~`>#+|{}\.!])").unwrap();
5a4aab7687 2025-06-29 49: }
5a4aab7687 2025-06-29 50:
5a4aab7687 2025-06-29 51: /// Encodes special HTML entities to prevent them interfering with Telegram HTML
5a4aab7687 2025-06-29 52: pub fn encode (text: &str) -> Cow<'_, str> {
5a4aab7687 2025-06-29 53: RE_SPECIAL.replace_all(text, "\\$1")
5a4aab7687 2025-06-29 54: }
9171c791eb 2021-11-13 55:
9171c791eb 2021-11-13 56: #[derive(Clone)]
9171c791eb 2021-11-13 57: pub struct Core {
bb89b6fab8 2025-06-15 58: owner_chat: ChatPeerId,
bb89b6fab8 2025-06-15 59: // max_delay: u16,
bb89b6fab8 2025-06-15 60: pub tg: Client,
bb89b6fab8 2025-06-15 61: pub me: Bot,
0340541002 2025-04-24 62: pub db: Db,
9171c791eb 2021-11-13 63: sources: Arc<Mutex<HashSet<Arc<i32>>>>,
45e34762e4 2023-05-28 64: http_client: reqwest::Client,
9171c791eb 2021-11-13 65: }
9171c791eb 2021-11-13 66:
9171c791eb 2021-11-13 67: impl Core {
0340541002 2025-04-24 68: pub async fn new(settings: config::Config) -> Result<Core> {
44575a91d3 2025-07-09 69: let owner_chat = ChatPeerId::from(settings.get_int("owner").stack()?);
44575a91d3 2025-07-09 70: let api_key = settings.get_string("api_key").stack()?;
44575a91d3 2025-07-09 71: let tg = Client::new(&api_key).stack()?;
45e34762e4 2023-05-28 72:
45e34762e4 2023-05-28 73: let mut client = reqwest::Client::builder();
9d8a6738fd 2023-07-30 74: if let Ok(proxy) = settings.get_string("proxy") {
44575a91d3 2025-07-09 75: let proxy = reqwest::Proxy::all(proxy).stack()?;
45e34762e4 2023-05-28 76: client = client.proxy(proxy);
45e34762e4 2023-05-28 77: }
44575a91d3 2025-07-09 78: let http_client = client.build().stack()?;
44575a91d3 2025-07-09 79: let me = tg.execute(GetBot).await.stack()?;
0340541002 2025-04-24 80: let core = Core {
f988dfd28f 2022-02-13 81: tg,
e624ef9d66 2025-04-20 82: me,
e624ef9d66 2025-04-20 83: owner_chat,
44575a91d3 2025-07-09 84: db: Db::new(&settings.get_string("pg").stack()?)?,
9171c791eb 2021-11-13 85: sources: Arc::new(Mutex::new(HashSet::new())),
45e34762e4 2023-05-28 86: http_client,
bb89b6fab8 2025-06-15 87: // max_delay: 60,
0340541002 2025-04-24 88: };
bb89b6fab8 2025-06-15 89: let clone = core.clone();
cb86e770f9 2022-03-15 90: task::spawn(async move {
26339860ce 2022-02-13 91: loop {
26339860ce 2022-02-13 92: let delay = match &clone.autofetch().await {
26339860ce 2022-02-13 93: Err(err) => {
e624ef9d66 2025-04-20 94: if let Err(err) = clone.send(format!("š {err:?}"), None, None).await {
e624ef9d66 2025-04-20 95: eprintln!("Autofetch error: {err:?}");
26339860ce 2022-02-13 96: };
cb86e770f9 2022-03-15 97: std::time::Duration::from_secs(60)
26339860ce 2022-02-13 98: },
26339860ce 2022-02-13 99: Ok(time) => *time,
9171c791eb 2021-11-13 100: };
cb86e770f9 2022-03-15 101: task::sleep(delay).await;
9171c791eb 2021-11-13 102: }
e624ef9d66 2025-04-20 103: });
9171c791eb 2021-11-13 104: Ok(core)
9171c791eb 2021-11-13 105: }
9171c791eb 2021-11-13 106:
bb89b6fab8 2025-06-15 107: pub async fn send <S>(&self, msg: S, target: Option<ChatPeerId>, mode: Option<ParseMode>) -> Result<Message>
e624ef9d66 2025-04-20 108: where S: Into<String> {
e624ef9d66 2025-04-20 109: let msg = msg.into();
e624ef9d66 2025-04-20 110:
e624ef9d66 2025-04-20 111: let mode = mode.unwrap_or(ParseMode::Html);
285ce2bc31 2024-09-17 112: let target = target.unwrap_or(self.owner_chat);
44575a91d3 2025-07-09 113: self.tg.execute(
bb89b6fab8 2025-06-15 114: SendMessage::new(target, msg)
bb89b6fab8 2025-06-15 115: .with_parse_mode(mode)
44575a91d3 2025-07-09 116: ).await.stack()
bb89b6fab8 2025-06-15 117: }
bb89b6fab8 2025-06-15 118:
bb89b6fab8 2025-06-15 119: pub async fn check (&self, id: i32, real: bool) -> Result<String> {
285ce2bc31 2024-09-17 120: let mut posted: i32 = 0;
44575a91d3 2025-07-09 121: let mut conn = self.db.begin().await.stack()?;
285ce2bc31 2024-09-17 122:
285ce2bc31 2024-09-17 123: let id = {
c6d3e97290 2025-07-01 124: let mut set = self.sources.lock_arc().await;
bb89b6fab8 2025-06-15 125: match set.get(&id) {
9171c791eb 2021-11-13 126: Some(id) => id.clone(),
9171c791eb 2021-11-13 127: None => {
bb89b6fab8 2025-06-15 128: let id = Arc::new(id);
9171c791eb 2021-11-13 129: set.insert(id.clone());
9171c791eb 2021-11-13 130: id.clone()
9171c791eb 2021-11-13 131: },
9171c791eb 2021-11-13 132: }
9171c791eb 2021-11-13 133: };
9171c791eb 2021-11-13 134: let count = Arc::strong_count(&id);
9171c791eb 2021-11-13 135: if count == 2 {
44575a91d3 2025-07-09 136: let source = conn.get_source(*id, self.owner_chat).await.stack()?;
44575a91d3 2025-07-09 137: conn.set_scrape(*id).await.stack()?;
bb89b6fab8 2025-06-15 138: let destination = ChatPeerId::from(match real {
e624ef9d66 2025-04-20 139: true => source.channel_id,
e624ef9d66 2025-04-20 140: false => source.owner,
bb89b6fab8 2025-06-15 141: });
9171c791eb 2021-11-13 142: let mut this_fetch: Option<DateTime<chrono::FixedOffset>> = None;
9171c791eb 2021-11-13 143: let mut posts: BTreeMap<DateTime<chrono::FixedOffset>, String> = BTreeMap::new();
45e34762e4 2023-05-28 144:
44575a91d3 2025-07-09 145: let response = self.http_client.get(&source.url).send().await.stack()?;
613a665847 2021-11-15 146: let status = response.status();
44575a91d3 2025-07-09 147: let content = response.bytes().await.stack()?;
9171c791eb 2021-11-13 148: match rss::Channel::read_from(&content[..]) {
9171c791eb 2021-11-13 149: Ok(feed) => {
9171c791eb 2021-11-13 150: for item in feed.items() {
f988dfd28f 2022-02-13 151: if let Some(link) = item.link() {
f988dfd28f 2022-02-13 152: let date = match item.pub_date() {
f988dfd28f 2022-02-13 153: Some(feed_date) => DateTime::parse_from_rfc2822(feed_date),
f988dfd28f 2022-02-13 154: None => DateTime::parse_from_rfc3339(&item.dublin_core_ext().unwrap().dates()[0]),
44575a91d3 2025-07-09 155: }.stack()?;
f988dfd28f 2022-02-13 156: let url = link;
26339860ce 2022-02-13 157: posts.insert(date, url.to_string());
9171c791eb 2021-11-13 158: }
9171c791eb 2021-11-13 159: };
9171c791eb 2021-11-13 160: },
9171c791eb 2021-11-13 161: Err(err) => match err {
9171c791eb 2021-11-13 162: rss::Error::InvalidStartTag => {
2c36f015d8 2024-11-23 163: match atom_syndication::Feed::read_from(&content[..]) {
2c36f015d8 2024-11-23 164: Ok(feed) => {
2c36f015d8 2024-11-23 165: for item in feed.entries() {
2c36f015d8 2024-11-23 166: let date = item.published().unwrap();
2c36f015d8 2024-11-23 167: let url = item.links()[0].href();
2c36f015d8 2024-11-23 168: posts.insert(*date, url.to_string());
2c36f015d8 2024-11-23 169: };
2c36f015d8 2024-11-23 170: },
2c36f015d8 2024-11-23 171: Err(err) => {
e624ef9d66 2025-04-20 172: bail!("Unsupported or mangled content:\n{:?}\n{err:#?}\n{status:#?}\n", &source.url)
2c36f015d8 2024-11-23 173: },
2c36f015d8 2024-11-23 174: }
9171c791eb 2021-11-13 175: },
9171c791eb 2021-11-13 176: rss::Error::Eof => (),
e624ef9d66 2025-04-20 177: _ => bail!("Unsupported or mangled content:\n{:?}\n{err:#?}\n{status:#?}\n", &source.url)
9171c791eb 2021-11-13 178: }
9171c791eb 2021-11-13 179: };
9171c791eb 2021-11-13 180: for (date, url) in posts.iter() {
9910c2209c 2023-08-04 181: let post_url: Cow<str> = match source.url_re {
44575a91d3 2025-07-09 182: Some(ref x) => sedregex::ReplaceCommand::new(x).stack()?.execute(url),
659724c658 2021-12-08 183: None => url.into(),
659724c658 2021-12-08 184: };
44575a91d3 2025-07-09 185: if let Some(exists) = conn.exists(&post_url, *id).await.stack()? {
9910c2209c 2023-08-04 186: if ! exists {
9910c2209c 2023-08-04 187: if this_fetch.is_none() || *date > this_fetch.unwrap() {
9910c2209c 2023-08-04 188: this_fetch = Some(*date);
9910c2209c 2023-08-04 189: };
e624ef9d66 2025-04-20 190: self.send( match &source.iv_hash {
e624ef9d66 2025-04-20 191: Some(hash) => format!("<a href=\"https://t.me/iv?url={post_url}&rhash={hash}\"> </a>{post_url}"),
e624ef9d66 2025-04-20 192: None => format!("{post_url}"),
44575a91d3 2025-07-09 193: }, Some(destination), Some(ParseMode::Html)).await.stack()?;
44575a91d3 2025-07-09 194: conn.add_post(*id, date, &post_url).await.stack()?;
659724c658 2021-12-08 195: };
9171c791eb 2021-11-13 196: };
9171c791eb 2021-11-13 197: posted += 1;
9171c791eb 2021-11-13 198: };
9171c791eb 2021-11-13 199: posts.clear();
9171c791eb 2021-11-13 200: };
0340541002 2025-04-24 201: Ok(format!("Posted: {posted}"))
26339860ce 2022-02-13 202: }
26339860ce 2022-02-13 203:
bb89b6fab8 2025-06-15 204: async fn autofetch(&self) -> Result<std::time::Duration> {
26339860ce 2022-02-13 205: let mut delay = chrono::Duration::minutes(1);
9910c2209c 2023-08-04 206: let now = chrono::Local::now();
bb89b6fab8 2025-06-15 207: let queue = {
44575a91d3 2025-07-09 208: let mut conn = self.db.begin().await.stack()?;
44575a91d3 2025-07-09 209: conn.get_queue().await.stack()?
bb89b6fab8 2025-06-15 210: };
bb89b6fab8 2025-06-15 211: for row in queue {
9910c2209c 2023-08-04 212: if let Some(next_fetch) = row.next_fetch {
9910c2209c 2023-08-04 213: if next_fetch < now {
9910c2209c 2023-08-04 214: if let (Some(owner), Some(source_id)) = (row.owner, row.source_id) {
bb89b6fab8 2025-06-15 215: let clone = Core {
bb89b6fab8 2025-06-15 216: owner_chat: ChatPeerId::from(owner),
9910c2209c 2023-08-04 217: ..self.clone()
9910c2209c 2023-08-04 218: };
b4af85e31b 2025-06-29 219: let source = {
44575a91d3 2025-07-09 220: let mut conn = self.db.begin().await.stack()?;
b4af85e31b 2025-06-29 221: match conn.get_one(owner, source_id).await {
b4af85e31b 2025-06-29 222: Ok(Some(source)) => source.to_string(),
44575a91d3 2025-07-09 223: Ok(None) => "Source not found in database.stack()?".to_string(),
b4af85e31b 2025-06-29 224: Err(err) => format!("Failed to fetch source data:\n{err}"),
b4af85e31b 2025-06-29 225: }
b4af85e31b 2025-06-29 226: };
9910c2209c 2023-08-04 227: task::spawn(async move {
bb89b6fab8 2025-06-15 228: if let Err(err) = clone.check(source_id, true).await {
c6d3e97290 2025-07-01 229: if let Err(err) = clone.send(&format!("{source}\n\nš {}", encode(&err.to_string())), None, Some(ParseMode::MarkdownV2)).await {
e624ef9d66 2025-04-20 230: eprintln!("Check error: {err:?}");
79c91a5357 2024-08-02 231: // clone.disable(&source_id, owner).await.unwrap();
9910c2209c 2023-08-04 232: };
9910c2209c 2023-08-04 233: };
9910c2209c 2023-08-04 234: });
9910c2209c 2023-08-04 235: }
9910c2209c 2023-08-04 236: } else if next_fetch - now < delay {
9910c2209c 2023-08-04 237: delay = next_fetch - now;
9910c2209c 2023-08-04 238: }
9910c2209c 2023-08-04 239: }
9910c2209c 2023-08-04 240: };
44575a91d3 2025-07-09 241: delay.to_std().stack()
9910c2209c 2023-08-04 242: }
9910c2209c 2023-08-04 243:
bb89b6fab8 2025-06-15 244: pub async fn list (&self, owner: UserPeerId) -> Result<String> {
b4af85e31b 2025-06-29 245: let mut reply: Vec<String> = vec![];
9910c2209c 2023-08-04 246: reply.push("Channels:".into());
44575a91d3 2025-07-09 247: let mut conn = self.db.begin().await.stack()?;
44575a91d3 2025-07-09 248: for row in conn.get_list(owner).await.stack()? {
b4af85e31b 2025-06-29 249: reply.push(row.to_string());
e624ef9d66 2025-04-20 250: };
b4af85e31b 2025-06-29 251: Ok(reply.join("\n\n"))
bb89b6fab8 2025-06-15 252: }
bb89b6fab8 2025-06-15 253: }
bb89b6fab8 2025-06-15 254:
bb89b6fab8 2025-06-15 255: impl UpdateHandler for Core {
bb89b6fab8 2025-06-15 256: async fn handle (&self, update: Update) {
bb89b6fab8 2025-06-15 257: if let UpdateType::Message(msg) = update.update_type {
bb89b6fab8 2025-06-15 258: if let Ok(cmd) = Command::try_from(msg) {
bb89b6fab8 2025-06-15 259: let msg = cmd.get_message();
bb89b6fab8 2025-06-15 260: let words = cmd.get_args();
fae13a0e55 2025-06-28 261: let command = cmd.get_name();
fae13a0e55 2025-06-28 262: let res = match command {
fae13a0e55 2025-06-28 263: "/check" | "/clean" | "/enable" | "/delete" | "/disable" => command::command(self, command, msg, words).await,
bb89b6fab8 2025-06-15 264: "/start" => command::start(self, msg).await,
bb89b6fab8 2025-06-15 265: "/list" => command::list(self, msg).await,
fae13a0e55 2025-06-28 266: "/add" | "/update" => command::update(self, command, msg, words).await,
bb89b6fab8 2025-06-15 267: any => Err(anyhow!("Unknown command: {any}")),
bb89b6fab8 2025-06-15 268: };
bb89b6fab8 2025-06-15 269: if let Err(err) = res {
bb89b6fab8 2025-06-15 270: if let Err(err2) = self.send(format!("\\#error\n```\n{err:?}\n```"),
bb89b6fab8 2025-06-15 271: Some(msg.chat.get_id()),
bb89b6fab8 2025-06-15 272: Some(ParseMode::MarkdownV2)
bb89b6fab8 2025-06-15 273: ).await{
bb89b6fab8 2025-06-15 274: dbg!(err2);
bb89b6fab8 2025-06-15 275: };
bb89b6fab8 2025-06-15 276: }
bb89b6fab8 2025-06-15 277: };
bb89b6fab8 2025-06-15 278: };
e624ef9d66 2025-04-20 279: }
9171c791eb 2021-11-13 280: }