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: },
1bd041d00f 2025-05-20 12: };
1bd041d00f 2025-05-20 13:
1bd041d00f 2025-05-20 14: use anyhow::{
1bd041d00f 2025-05-20 15: anyhow,
1bd041d00f 2025-05-20 16: bail,
1bd041d00f 2025-05-20 17: Result,
1bd041d00f 2025-05-20 18: };
c6d3e97290 2025-07-01 19: use async_std::{
c6d3e97290 2025-07-01 20: task,
c6d3e97290 2025-07-01 21: sync::{
c6d3e97290 2025-07-01 22: Arc,
c6d3e97290 2025-07-01 23: Mutex
c6d3e97290 2025-07-01 24: },
c6d3e97290 2025-07-01 25: };
1bd041d00f 2025-05-20 26: use chrono::DateTime;
5a4aab7687 2025-06-29 27: use lazy_static::lazy_static;
5a4aab7687 2025-06-29 28: use regex::Regex;
bb89b6fab8 2025-06-15 29: use tgbot::{
bb89b6fab8 2025-06-15 30: api::Client,
bb89b6fab8 2025-06-15 31: handler::UpdateHandler,
1bd041d00f 2025-05-20 32: types::{
bb89b6fab8 2025-06-15 33: Bot,
bb89b6fab8 2025-06-15 34: ChatPeerId,
bb89b6fab8 2025-06-15 35: Command,
bb89b6fab8 2025-06-15 36: GetBot,
bb89b6fab8 2025-06-15 37: Message,
bb89b6fab8 2025-06-15 38: ParseMode,
bb89b6fab8 2025-06-15 39: SendMessage,
bb89b6fab8 2025-06-15 40: Update,
bb89b6fab8 2025-06-15 41: UpdateType,
bb89b6fab8 2025-06-15 42: UserPeerId,
1bd041d00f 2025-05-20 43: },
1bd041d00f 2025-05-20 44: };
5a4aab7687 2025-06-29 45:
5a4aab7687 2025-06-29 46: lazy_static!{
5a4aab7687 2025-06-29 47: pub static ref RE_SPECIAL: Regex = Regex::new(r"([\-_*\[\]()~`>#+|{}\.!])").unwrap();
5a4aab7687 2025-06-29 48: }
5a4aab7687 2025-06-29 49:
5a4aab7687 2025-06-29 50: /// Encodes special HTML entities to prevent them interfering with Telegram HTML
5a4aab7687 2025-06-29 51: pub fn encode (text: &str) -> Cow<'_, str> {
5a4aab7687 2025-06-29 52: RE_SPECIAL.replace_all(text, "\\$1")
5a4aab7687 2025-06-29 53: }
9171c791eb 2021-11-13 54:
9171c791eb 2021-11-13 55: #[derive(Clone)]
9171c791eb 2021-11-13 56: pub struct Core {
bb89b6fab8 2025-06-15 57: owner_chat: ChatPeerId,
bb89b6fab8 2025-06-15 58: // max_delay: u16,
bb89b6fab8 2025-06-15 59: pub tg: Client,
bb89b6fab8 2025-06-15 60: pub me: Bot,
0340541002 2025-04-24 61: pub db: Db,
9171c791eb 2021-11-13 62: sources: Arc<Mutex<HashSet<Arc<i32>>>>,
45e34762e4 2023-05-28 63: http_client: reqwest::Client,
9171c791eb 2021-11-13 64: }
9171c791eb 2021-11-13 65:
9171c791eb 2021-11-13 66: impl Core {
0340541002 2025-04-24 67: pub async fn new(settings: config::Config) -> Result<Core> {
bb89b6fab8 2025-06-15 68: let owner_chat = ChatPeerId::from(settings.get_int("owner")?);
28da2e2a00 2022-03-12 69: let api_key = settings.get_string("api_key")?;
bb89b6fab8 2025-06-15 70: let tg = Client::new(&api_key)?;
45e34762e4 2023-05-28 71:
45e34762e4 2023-05-28 72: let mut client = reqwest::Client::builder();
9d8a6738fd 2023-07-30 73: if let Ok(proxy) = settings.get_string("proxy") {
45e34762e4 2023-05-28 74: let proxy = reqwest::Proxy::all(proxy)?;
45e34762e4 2023-05-28 75: client = client.proxy(proxy);
45e34762e4 2023-05-28 76: }
45e34762e4 2023-05-28 77: let http_client = client.build()?;
bb89b6fab8 2025-06-15 78: let me = tg.execute(GetBot).await?;
0340541002 2025-04-24 79: let core = Core {
f988dfd28f 2022-02-13 80: tg,
e624ef9d66 2025-04-20 81: me,
e624ef9d66 2025-04-20 82: owner_chat,
0340541002 2025-04-24 83: db: Db::new(&settings.get_string("pg")?)?,
9171c791eb 2021-11-13 84: sources: Arc::new(Mutex::new(HashSet::new())),
45e34762e4 2023-05-28 85: http_client,
bb89b6fab8 2025-06-15 86: // max_delay: 60,
0340541002 2025-04-24 87: };
bb89b6fab8 2025-06-15 88: let clone = core.clone();
cb86e770f9 2022-03-15 89: task::spawn(async move {
26339860ce 2022-02-13 90: loop {
26339860ce 2022-02-13 91: let delay = match &clone.autofetch().await {
26339860ce 2022-02-13 92: Err(err) => {
e624ef9d66 2025-04-20 93: if let Err(err) = clone.send(format!("š {err:?}"), None, None).await {
e624ef9d66 2025-04-20 94: eprintln!("Autofetch error: {err:?}");
26339860ce 2022-02-13 95: };
cb86e770f9 2022-03-15 96: std::time::Duration::from_secs(60)
26339860ce 2022-02-13 97: },
26339860ce 2022-02-13 98: Ok(time) => *time,
9171c791eb 2021-11-13 99: };
cb86e770f9 2022-03-15 100: task::sleep(delay).await;
9171c791eb 2021-11-13 101: }
e624ef9d66 2025-04-20 102: });
9171c791eb 2021-11-13 103: Ok(core)
9171c791eb 2021-11-13 104: }
9171c791eb 2021-11-13 105:
bb89b6fab8 2025-06-15 106: pub async fn send <S>(&self, msg: S, target: Option<ChatPeerId>, mode: Option<ParseMode>) -> Result<Message>
e624ef9d66 2025-04-20 107: where S: Into<String> {
e624ef9d66 2025-04-20 108: let msg = msg.into();
e624ef9d66 2025-04-20 109:
e624ef9d66 2025-04-20 110: let mode = mode.unwrap_or(ParseMode::Html);
e624ef9d66 2025-04-20 111: let target = target.unwrap_or(self.owner_chat);
bb89b6fab8 2025-06-15 112: Ok(self.tg.execute(
bb89b6fab8 2025-06-15 113: SendMessage::new(target, msg)
bb89b6fab8 2025-06-15 114: .with_parse_mode(mode)
bb89b6fab8 2025-06-15 115: ).await?)
bb89b6fab8 2025-06-15 116: }
bb89b6fab8 2025-06-15 117:
bb89b6fab8 2025-06-15 118: pub async fn check (&self, id: i32, real: bool) -> Result<String> {
e624ef9d66 2025-04-20 119: let mut posted: i32 = 0;
0340541002 2025-04-24 120: let mut conn = self.db.begin().await?;
285ce2bc31 2024-09-17 121:
285ce2bc31 2024-09-17 122: let id = {
c6d3e97290 2025-07-01 123: let mut set = self.sources.lock_arc().await;
bb89b6fab8 2025-06-15 124: match set.get(&id) {
9171c791eb 2021-11-13 125: Some(id) => id.clone(),
9171c791eb 2021-11-13 126: None => {
bb89b6fab8 2025-06-15 127: let id = Arc::new(id);
9171c791eb 2021-11-13 128: set.insert(id.clone());
9171c791eb 2021-11-13 129: id.clone()
9171c791eb 2021-11-13 130: },
9171c791eb 2021-11-13 131: }
9171c791eb 2021-11-13 132: };
9171c791eb 2021-11-13 133: let count = Arc::strong_count(&id);
9171c791eb 2021-11-13 134: if count == 2 {
bb89b6fab8 2025-06-15 135: let source = conn.get_source(*id, self.owner_chat).await?;
61899b5618 2025-04-26 136: conn.set_scrape(*id).await?;
bb89b6fab8 2025-06-15 137: let destination = ChatPeerId::from(match real {
e624ef9d66 2025-04-20 138: true => source.channel_id,
e624ef9d66 2025-04-20 139: false => source.owner,
bb89b6fab8 2025-06-15 140: });
9171c791eb 2021-11-13 141: let mut this_fetch: Option<DateTime<chrono::FixedOffset>> = None;
9171c791eb 2021-11-13 142: let mut posts: BTreeMap<DateTime<chrono::FixedOffset>, String> = BTreeMap::new();
45e34762e4 2023-05-28 143:
9910c2209c 2023-08-04 144: let response = self.http_client.get(&source.url).send().await?;
613a665847 2021-11-15 145: let status = response.status();
613a665847 2021-11-15 146: let content = response.bytes().await?;
9171c791eb 2021-11-13 147: match rss::Channel::read_from(&content[..]) {
9171c791eb 2021-11-13 148: Ok(feed) => {
9171c791eb 2021-11-13 149: for item in feed.items() {
f988dfd28f 2022-02-13 150: if let Some(link) = item.link() {
f988dfd28f 2022-02-13 151: let date = match item.pub_date() {
f988dfd28f 2022-02-13 152: Some(feed_date) => DateTime::parse_from_rfc2822(feed_date),
f988dfd28f 2022-02-13 153: None => DateTime::parse_from_rfc3339(&item.dublin_core_ext().unwrap().dates()[0]),
f988dfd28f 2022-02-13 154: }?;
f988dfd28f 2022-02-13 155: let url = link;
26339860ce 2022-02-13 156: posts.insert(date, url.to_string());
9171c791eb 2021-11-13 157: }
9171c791eb 2021-11-13 158: };
9171c791eb 2021-11-13 159: },
9171c791eb 2021-11-13 160: Err(err) => match err {
9171c791eb 2021-11-13 161: rss::Error::InvalidStartTag => {
2c36f015d8 2024-11-23 162: match atom_syndication::Feed::read_from(&content[..]) {
2c36f015d8 2024-11-23 163: Ok(feed) => {
2c36f015d8 2024-11-23 164: for item in feed.entries() {
2c36f015d8 2024-11-23 165: let date = item.published().unwrap();
2c36f015d8 2024-11-23 166: let url = item.links()[0].href();
2c36f015d8 2024-11-23 167: posts.insert(*date, url.to_string());
2c36f015d8 2024-11-23 168: };
2c36f015d8 2024-11-23 169: },
2c36f015d8 2024-11-23 170: Err(err) => {
e624ef9d66 2025-04-20 171: bail!("Unsupported or mangled content:\n{:?}\n{err:#?}\n{status:#?}\n", &source.url)
2c36f015d8 2024-11-23 172: },
2c36f015d8 2024-11-23 173: }
9171c791eb 2021-11-13 174: },
9171c791eb 2021-11-13 175: rss::Error::Eof => (),
e624ef9d66 2025-04-20 176: _ => bail!("Unsupported or mangled content:\n{:?}\n{err:#?}\n{status:#?}\n", &source.url)
9171c791eb 2021-11-13 177: }
9171c791eb 2021-11-13 178: };
9171c791eb 2021-11-13 179: for (date, url) in posts.iter() {
9910c2209c 2023-08-04 180: let post_url: Cow<str> = match source.url_re {
3dc9cddd4d 2023-08-04 181: Some(ref x) => sedregex::ReplaceCommand::new(x)?.execute(url),
659724c658 2021-12-08 182: None => url.into(),
659724c658 2021-12-08 183: };
0340541002 2025-04-24 184: if let Some(exists) = conn.exists(&post_url, *id).await? {
9910c2209c 2023-08-04 185: if ! exists {
9910c2209c 2023-08-04 186: if this_fetch.is_none() || *date > this_fetch.unwrap() {
9910c2209c 2023-08-04 187: this_fetch = Some(*date);
9910c2209c 2023-08-04 188: };
e624ef9d66 2025-04-20 189: self.send( match &source.iv_hash {
e624ef9d66 2025-04-20 190: Some(hash) => format!("<a href=\"https://t.me/iv?url={post_url}&rhash={hash}\"> </a>{post_url}"),
e624ef9d66 2025-04-20 191: None => format!("{post_url}"),
e624ef9d66 2025-04-20 192: }, Some(destination), Some(ParseMode::Html)).await?;
0340541002 2025-04-24 193: conn.add_post(*id, date, &post_url).await?;
659724c658 2021-12-08 194: };
9171c791eb 2021-11-13 195: };
9171c791eb 2021-11-13 196: posted += 1;
9171c791eb 2021-11-13 197: };
9171c791eb 2021-11-13 198: posts.clear();
9171c791eb 2021-11-13 199: };
0340541002 2025-04-24 200: Ok(format!("Posted: {posted}"))
26339860ce 2022-02-13 201: }
26339860ce 2022-02-13 202:
bb89b6fab8 2025-06-15 203: async fn autofetch(&self) -> Result<std::time::Duration> {
26339860ce 2022-02-13 204: let mut delay = chrono::Duration::minutes(1);
9910c2209c 2023-08-04 205: let now = chrono::Local::now();
bb89b6fab8 2025-06-15 206: let queue = {
bb89b6fab8 2025-06-15 207: let mut conn = self.db.begin().await?;
bb89b6fab8 2025-06-15 208: conn.get_queue().await?
bb89b6fab8 2025-06-15 209: };
bb89b6fab8 2025-06-15 210: for row in queue {
9910c2209c 2023-08-04 211: if let Some(next_fetch) = row.next_fetch {
9910c2209c 2023-08-04 212: if next_fetch < now {
9910c2209c 2023-08-04 213: if let (Some(owner), Some(source_id)) = (row.owner, row.source_id) {
bb89b6fab8 2025-06-15 214: let clone = Core {
bb89b6fab8 2025-06-15 215: owner_chat: ChatPeerId::from(owner),
9910c2209c 2023-08-04 216: ..self.clone()
9910c2209c 2023-08-04 217: };
b4af85e31b 2025-06-29 218: let source = {
b4af85e31b 2025-06-29 219: let mut conn = self.db.begin().await?;
b4af85e31b 2025-06-29 220: match conn.get_one(owner, source_id).await {
b4af85e31b 2025-06-29 221: Ok(Some(source)) => source.to_string(),
b4af85e31b 2025-06-29 222: Ok(None) => "Source not found in database?".to_string(),
b4af85e31b 2025-06-29 223: Err(err) => format!("Failed to fetch source data:\n{err}"),
b4af85e31b 2025-06-29 224: }
b4af85e31b 2025-06-29 225: };
9910c2209c 2023-08-04 226: task::spawn(async move {
bb89b6fab8 2025-06-15 227: if let Err(err) = clone.check(source_id, true).await {
c6d3e97290 2025-07-01 228: if let Err(err) = clone.send(&format!("{source}\n\nš {}", encode(&err.to_string())), None, Some(ParseMode::MarkdownV2)).await {
e624ef9d66 2025-04-20 229: eprintln!("Check error: {err:?}");
79c91a5357 2024-08-02 230: // clone.disable(&source_id, owner).await.unwrap();
9910c2209c 2023-08-04 231: };
9910c2209c 2023-08-04 232: };
9910c2209c 2023-08-04 233: });
9910c2209c 2023-08-04 234: }
9910c2209c 2023-08-04 235: } else if next_fetch - now < delay {
9910c2209c 2023-08-04 236: delay = next_fetch - now;
9910c2209c 2023-08-04 237: }
9910c2209c 2023-08-04 238: }
9910c2209c 2023-08-04 239: };
26339860ce 2022-02-13 240: Ok(delay.to_std()?)
26339860ce 2022-02-13 241: }
26339860ce 2022-02-13 242:
bb89b6fab8 2025-06-15 243: pub async fn list (&self, owner: UserPeerId) -> Result<String> {
b4af85e31b 2025-06-29 244: let mut reply: Vec<String> = vec![];
26339860ce 2022-02-13 245: reply.push("Channels:".into());
0340541002 2025-04-24 246: let mut conn = self.db.begin().await?;
0340541002 2025-04-24 247: for row in conn.get_list(owner).await? {
b4af85e31b 2025-06-29 248: reply.push(row.to_string());
e624ef9d66 2025-04-20 249: };
b4af85e31b 2025-06-29 250: Ok(reply.join("\n\n"))
bb89b6fab8 2025-06-15 251: }
bb89b6fab8 2025-06-15 252: }
bb89b6fab8 2025-06-15 253:
bb89b6fab8 2025-06-15 254: impl UpdateHandler for Core {
bb89b6fab8 2025-06-15 255: async fn handle (&self, update: Update) {
bb89b6fab8 2025-06-15 256: if let UpdateType::Message(msg) = update.update_type {
bb89b6fab8 2025-06-15 257: if let Ok(cmd) = Command::try_from(msg) {
bb89b6fab8 2025-06-15 258: let msg = cmd.get_message();
bb89b6fab8 2025-06-15 259: let words = cmd.get_args();
fae13a0e55 2025-06-28 260: let command = cmd.get_name();
fae13a0e55 2025-06-28 261: let res = match command {
fae13a0e55 2025-06-28 262: "/check" | "/clean" | "/enable" | "/delete" | "/disable" => command::command(self, command, msg, words).await,
bb89b6fab8 2025-06-15 263: "/start" => command::start(self, msg).await,
bb89b6fab8 2025-06-15 264: "/list" => command::list(self, msg).await,
fae13a0e55 2025-06-28 265: "/add" | "/update" => command::update(self, command, msg, words).await,
bb89b6fab8 2025-06-15 266: any => Err(anyhow!("Unknown command: {any}")),
bb89b6fab8 2025-06-15 267: };
bb89b6fab8 2025-06-15 268: if let Err(err) = res {
bb89b6fab8 2025-06-15 269: if let Err(err2) = self.send(format!("\\#error\n```\n{err:?}\n```"),
bb89b6fab8 2025-06-15 270: Some(msg.chat.get_id()),
bb89b6fab8 2025-06-15 271: Some(ParseMode::MarkdownV2)
bb89b6fab8 2025-06-15 272: ).await{
bb89b6fab8 2025-06-15 273: dbg!(err2);
bb89b6fab8 2025-06-15 274: };
bb89b6fab8 2025-06-15 275: }
bb89b6fab8 2025-06-15 276: };
bb89b6fab8 2025-06-15 277: };
e624ef9d66 2025-04-20 278: }
9171c791eb 2021-11-13 279: }