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: },
1c444d34ff 2024-08-28 12: sync::{
1c444d34ff 2024-08-28 13: Arc,
1c444d34ff 2024-08-28 14: Mutex
1c444d34ff 2024-08-28 15: },
1c444d34ff 2024-08-28 16: };
1c444d34ff 2024-08-28 17:
e624ef9d66 2025-04-20 18: use anyhow::{
1bd041d00f 2025-05-20 19: anyhow,
e624ef9d66 2025-04-20 20: bail,
e624ef9d66 2025-04-20 21: Result,
e624ef9d66 2025-04-20 22: };
e624ef9d66 2025-04-20 23: use async_std::task;
e624ef9d66 2025-04-20 24: use chrono::DateTime;
5a4aab7687 2025-06-29 25: use lazy_static::lazy_static;
5a4aab7687 2025-06-29 26: use regex::Regex;
bb89b6fab8 2025-06-15 27: use tgbot::{
bb89b6fab8 2025-06-15 28: api::Client,
bb89b6fab8 2025-06-15 29: handler::UpdateHandler,
bb89b6fab8 2025-06-15 30: types::{
bb89b6fab8 2025-06-15 31: Bot,
bb89b6fab8 2025-06-15 32: ChatPeerId,
bb89b6fab8 2025-06-15 33: Command,
bb89b6fab8 2025-06-15 34: GetBot,
bb89b6fab8 2025-06-15 35: Message,
bb89b6fab8 2025-06-15 36: ParseMode,
bb89b6fab8 2025-06-15 37: SendMessage,
bb89b6fab8 2025-06-15 38: Update,
bb89b6fab8 2025-06-15 39: UpdateType,
bb89b6fab8 2025-06-15 40: UserPeerId,
bb89b6fab8 2025-06-15 41: },
bb89b6fab8 2025-06-15 42: };
5a4aab7687 2025-06-29 43:
5a4aab7687 2025-06-29 44: lazy_static!{
5a4aab7687 2025-06-29 45: pub static ref RE_SPECIAL: Regex = Regex::new(r"([\-_*\[\]()~`>#+|{}\.!])").unwrap();
5a4aab7687 2025-06-29 46: }
5a4aab7687 2025-06-29 47:
5a4aab7687 2025-06-29 48: /// Encodes special HTML entities to prevent them interfering with Telegram HTML
5a4aab7687 2025-06-29 49: pub fn encode (text: &str) -> Cow<'_, str> {
5a4aab7687 2025-06-29 50: RE_SPECIAL.replace_all(text, "\\$1")
5a4aab7687 2025-06-29 51: }
9171c791eb 2021-11-13 52:
9171c791eb 2021-11-13 53: #[derive(Clone)]
9171c791eb 2021-11-13 54: pub struct Core {
bb89b6fab8 2025-06-15 55: owner_chat: ChatPeerId,
bb89b6fab8 2025-06-15 56: // max_delay: u16,
bb89b6fab8 2025-06-15 57: pub tg: Client,
bb89b6fab8 2025-06-15 58: pub me: Bot,
0340541002 2025-04-24 59: pub db: Db,
9171c791eb 2021-11-13 60: sources: Arc<Mutex<HashSet<Arc<i32>>>>,
45e34762e4 2023-05-28 61: http_client: reqwest::Client,
9171c791eb 2021-11-13 62: }
9171c791eb 2021-11-13 63:
9171c791eb 2021-11-13 64: impl Core {
0340541002 2025-04-24 65: pub async fn new(settings: config::Config) -> Result<Core> {
bb89b6fab8 2025-06-15 66: let owner_chat = ChatPeerId::from(settings.get_int("owner")?);
28da2e2a00 2022-03-12 67: let api_key = settings.get_string("api_key")?;
bb89b6fab8 2025-06-15 68: let tg = Client::new(&api_key)?;
45e34762e4 2023-05-28 69:
45e34762e4 2023-05-28 70: let mut client = reqwest::Client::builder();
9d8a6738fd 2023-07-30 71: if let Ok(proxy) = settings.get_string("proxy") {
45e34762e4 2023-05-28 72: let proxy = reqwest::Proxy::all(proxy)?;
45e34762e4 2023-05-28 73: client = client.proxy(proxy);
45e34762e4 2023-05-28 74: }
45e34762e4 2023-05-28 75: let http_client = client.build()?;
bb89b6fab8 2025-06-15 76: let me = tg.execute(GetBot).await?;
0340541002 2025-04-24 77: let core = Core {
f988dfd28f 2022-02-13 78: tg,
e624ef9d66 2025-04-20 79: me,
e624ef9d66 2025-04-20 80: owner_chat,
0340541002 2025-04-24 81: db: Db::new(&settings.get_string("pg")?)?,
9171c791eb 2021-11-13 82: sources: Arc::new(Mutex::new(HashSet::new())),
45e34762e4 2023-05-28 83: http_client,
bb89b6fab8 2025-06-15 84: // max_delay: 60,
0340541002 2025-04-24 85: };
bb89b6fab8 2025-06-15 86: let clone = core.clone();
cb86e770f9 2022-03-15 87: task::spawn(async move {
26339860ce 2022-02-13 88: loop {
26339860ce 2022-02-13 89: let delay = match &clone.autofetch().await {
26339860ce 2022-02-13 90: Err(err) => {
e624ef9d66 2025-04-20 91: if let Err(err) = clone.send(format!("š {err:?}"), None, None).await {
e624ef9d66 2025-04-20 92: eprintln!("Autofetch error: {err:?}");
26339860ce 2022-02-13 93: };
cb86e770f9 2022-03-15 94: std::time::Duration::from_secs(60)
26339860ce 2022-02-13 95: },
26339860ce 2022-02-13 96: Ok(time) => *time,
9171c791eb 2021-11-13 97: };
cb86e770f9 2022-03-15 98: task::sleep(delay).await;
9171c791eb 2021-11-13 99: }
e624ef9d66 2025-04-20 100: });
9171c791eb 2021-11-13 101: Ok(core)
9171c791eb 2021-11-13 102: }
9171c791eb 2021-11-13 103:
bb89b6fab8 2025-06-15 104: pub async fn send <S>(&self, msg: S, target: Option<ChatPeerId>, mode: Option<ParseMode>) -> Result<Message>
e624ef9d66 2025-04-20 105: where S: Into<String> {
e624ef9d66 2025-04-20 106: let msg = msg.into();
e624ef9d66 2025-04-20 107:
e624ef9d66 2025-04-20 108: let mode = mode.unwrap_or(ParseMode::Html);
26339860ce 2022-02-13 109: let target = target.unwrap_or(self.owner_chat);
bb89b6fab8 2025-06-15 110: Ok(self.tg.execute(
bb89b6fab8 2025-06-15 111: SendMessage::new(target, msg)
bb89b6fab8 2025-06-15 112: .with_parse_mode(mode)
bb89b6fab8 2025-06-15 113: ).await?)
bb89b6fab8 2025-06-15 114: }
bb89b6fab8 2025-06-15 115:
bb89b6fab8 2025-06-15 116: pub async fn check (&self, id: i32, real: bool) -> Result<String> {
9171c791eb 2021-11-13 117: let mut posted: i32 = 0;
0340541002 2025-04-24 118: let mut conn = self.db.begin().await?;
285ce2bc31 2024-09-17 119:
9171c791eb 2021-11-13 120: let id = {
9171c791eb 2021-11-13 121: let mut set = self.sources.lock().unwrap();
bb89b6fab8 2025-06-15 122: match set.get(&id) {
9171c791eb 2021-11-13 123: Some(id) => id.clone(),
9171c791eb 2021-11-13 124: None => {
bb89b6fab8 2025-06-15 125: let id = Arc::new(id);
9171c791eb 2021-11-13 126: set.insert(id.clone());
9171c791eb 2021-11-13 127: id.clone()
9171c791eb 2021-11-13 128: },
9171c791eb 2021-11-13 129: }
9171c791eb 2021-11-13 130: };
9171c791eb 2021-11-13 131: let count = Arc::strong_count(&id);
9171c791eb 2021-11-13 132: if count == 2 {
bb89b6fab8 2025-06-15 133: let source = conn.get_source(*id, self.owner_chat).await?;
61899b5618 2025-04-26 134: conn.set_scrape(*id).await?;
bb89b6fab8 2025-06-15 135: let destination = ChatPeerId::from(match real {
e624ef9d66 2025-04-20 136: true => source.channel_id,
e624ef9d66 2025-04-20 137: false => source.owner,
bb89b6fab8 2025-06-15 138: });
9171c791eb 2021-11-13 139: let mut this_fetch: Option<DateTime<chrono::FixedOffset>> = None;
9171c791eb 2021-11-13 140: let mut posts: BTreeMap<DateTime<chrono::FixedOffset>, String> = BTreeMap::new();
45e34762e4 2023-05-28 141:
9910c2209c 2023-08-04 142: let response = self.http_client.get(&source.url).send().await?;
613a665847 2021-11-15 143: let status = response.status();
613a665847 2021-11-15 144: let content = response.bytes().await?;
9171c791eb 2021-11-13 145: match rss::Channel::read_from(&content[..]) {
9171c791eb 2021-11-13 146: Ok(feed) => {
9171c791eb 2021-11-13 147: for item in feed.items() {
f988dfd28f 2022-02-13 148: if let Some(link) = item.link() {
f988dfd28f 2022-02-13 149: let date = match item.pub_date() {
f988dfd28f 2022-02-13 150: Some(feed_date) => DateTime::parse_from_rfc2822(feed_date),
f988dfd28f 2022-02-13 151: None => DateTime::parse_from_rfc3339(&item.dublin_core_ext().unwrap().dates()[0]),
f988dfd28f 2022-02-13 152: }?;
f988dfd28f 2022-02-13 153: let url = link;
26339860ce 2022-02-13 154: posts.insert(date, url.to_string());
9171c791eb 2021-11-13 155: }
9171c791eb 2021-11-13 156: };
9171c791eb 2021-11-13 157: },
9171c791eb 2021-11-13 158: Err(err) => match err {
9171c791eb 2021-11-13 159: rss::Error::InvalidStartTag => {
2c36f015d8 2024-11-23 160: match atom_syndication::Feed::read_from(&content[..]) {
2c36f015d8 2024-11-23 161: Ok(feed) => {
2c36f015d8 2024-11-23 162: for item in feed.entries() {
2c36f015d8 2024-11-23 163: let date = item.published().unwrap();
2c36f015d8 2024-11-23 164: let url = item.links()[0].href();
2c36f015d8 2024-11-23 165: posts.insert(*date, url.to_string());
2c36f015d8 2024-11-23 166: };
2c36f015d8 2024-11-23 167: },
2c36f015d8 2024-11-23 168: Err(err) => {
e624ef9d66 2025-04-20 169: bail!("Unsupported or mangled content:\n{:?}\n{err:#?}\n{status:#?}\n", &source.url)
2c36f015d8 2024-11-23 170: },
2c36f015d8 2024-11-23 171: }
9171c791eb 2021-11-13 172: },
9171c791eb 2021-11-13 173: rss::Error::Eof => (),
e624ef9d66 2025-04-20 174: _ => bail!("Unsupported or mangled content:\n{:?}\n{err:#?}\n{status:#?}\n", &source.url)
9171c791eb 2021-11-13 175: }
9171c791eb 2021-11-13 176: };
9171c791eb 2021-11-13 177: for (date, url) in posts.iter() {
9910c2209c 2023-08-04 178: let post_url: Cow<str> = match source.url_re {
3dc9cddd4d 2023-08-04 179: Some(ref x) => sedregex::ReplaceCommand::new(x)?.execute(url),
659724c658 2021-12-08 180: None => url.into(),
659724c658 2021-12-08 181: };
0340541002 2025-04-24 182: if let Some(exists) = conn.exists(&post_url, *id).await? {
9910c2209c 2023-08-04 183: if ! exists {
9910c2209c 2023-08-04 184: if this_fetch.is_none() || *date > this_fetch.unwrap() {
9910c2209c 2023-08-04 185: this_fetch = Some(*date);
9910c2209c 2023-08-04 186: };
e624ef9d66 2025-04-20 187: self.send( match &source.iv_hash {
e624ef9d66 2025-04-20 188: Some(hash) => format!("<a href=\"https://t.me/iv?url={post_url}&rhash={hash}\"> </a>{post_url}"),
e624ef9d66 2025-04-20 189: None => format!("{post_url}"),
e624ef9d66 2025-04-20 190: }, Some(destination), Some(ParseMode::Html)).await?;
0340541002 2025-04-24 191: conn.add_post(*id, date, &post_url).await?;
659724c658 2021-12-08 192: };
9171c791eb 2021-11-13 193: };
9171c791eb 2021-11-13 194: posted += 1;
9171c791eb 2021-11-13 195: };
9171c791eb 2021-11-13 196: posts.clear();
9171c791eb 2021-11-13 197: };
0340541002 2025-04-24 198: Ok(format!("Posted: {posted}"))
26339860ce 2022-02-13 199: }
26339860ce 2022-02-13 200:
bb89b6fab8 2025-06-15 201: async fn autofetch(&self) -> Result<std::time::Duration> {
26339860ce 2022-02-13 202: let mut delay = chrono::Duration::minutes(1);
9910c2209c 2023-08-04 203: let now = chrono::Local::now();
bb89b6fab8 2025-06-15 204: let queue = {
bb89b6fab8 2025-06-15 205: let mut conn = self.db.begin().await?;
bb89b6fab8 2025-06-15 206: conn.get_queue().await?
bb89b6fab8 2025-06-15 207: };
bb89b6fab8 2025-06-15 208: for row in queue {
9910c2209c 2023-08-04 209: if let Some(next_fetch) = row.next_fetch {
9910c2209c 2023-08-04 210: if next_fetch < now {
9910c2209c 2023-08-04 211: if let (Some(owner), Some(source_id)) = (row.owner, row.source_id) {
bb89b6fab8 2025-06-15 212: let clone = Core {
bb89b6fab8 2025-06-15 213: owner_chat: ChatPeerId::from(owner),
9910c2209c 2023-08-04 214: ..self.clone()
9910c2209c 2023-08-04 215: };
b4af85e31b 2025-06-29 216: let source = {
b4af85e31b 2025-06-29 217: let mut conn = self.db.begin().await?;
b4af85e31b 2025-06-29 218: match conn.get_one(owner, source_id).await {
b4af85e31b 2025-06-29 219: Ok(Some(source)) => source.to_string(),
b4af85e31b 2025-06-29 220: Ok(None) => "Source not found in database?".to_string(),
b4af85e31b 2025-06-29 221: Err(err) => format!("Failed to fetch source data:\n{err}"),
b4af85e31b 2025-06-29 222: }
b4af85e31b 2025-06-29 223: };
9910c2209c 2023-08-04 224: task::spawn(async move {
bb89b6fab8 2025-06-15 225: if let Err(err) = clone.check(source_id, true).await {
5a4aab7687 2025-06-29 226: if let Err(err) = clone.send(&format!("{source}\nš {}", encode(&err.to_string())), None, Some(ParseMode::MarkdownV2)).await {
e624ef9d66 2025-04-20 227: eprintln!("Check error: {err:?}");
79c91a5357 2024-08-02 228: // clone.disable(&source_id, owner).await.unwrap();
9910c2209c 2023-08-04 229: };
9910c2209c 2023-08-04 230: };
9910c2209c 2023-08-04 231: });
9910c2209c 2023-08-04 232: }
9910c2209c 2023-08-04 233: } else if next_fetch - now < delay {
9910c2209c 2023-08-04 234: delay = next_fetch - now;
9910c2209c 2023-08-04 235: }
9910c2209c 2023-08-04 236: }
9910c2209c 2023-08-04 237: };
26339860ce 2022-02-13 238: Ok(delay.to_std()?)
26339860ce 2022-02-13 239: }
26339860ce 2022-02-13 240:
bb89b6fab8 2025-06-15 241: pub async fn list (&self, owner: UserPeerId) -> Result<String> {
b4af85e31b 2025-06-29 242: let mut reply: Vec<String> = vec![];
26339860ce 2022-02-13 243: reply.push("Channels:".into());
0340541002 2025-04-24 244: let mut conn = self.db.begin().await?;
0340541002 2025-04-24 245: for row in conn.get_list(owner).await? {
b4af85e31b 2025-06-29 246: reply.push(row.to_string());
e624ef9d66 2025-04-20 247: };
b4af85e31b 2025-06-29 248: Ok(reply.join("\n\n"))
bb89b6fab8 2025-06-15 249: }
bb89b6fab8 2025-06-15 250: }
bb89b6fab8 2025-06-15 251:
bb89b6fab8 2025-06-15 252: impl UpdateHandler for Core {
bb89b6fab8 2025-06-15 253: async fn handle (&self, update: Update) {
bb89b6fab8 2025-06-15 254: if let UpdateType::Message(msg) = update.update_type {
bb89b6fab8 2025-06-15 255: if let Ok(cmd) = Command::try_from(msg) {
bb89b6fab8 2025-06-15 256: let msg = cmd.get_message();
bb89b6fab8 2025-06-15 257: let words = cmd.get_args();
fae13a0e55 2025-06-28 258: let command = cmd.get_name();
fae13a0e55 2025-06-28 259: let res = match command {
fae13a0e55 2025-06-28 260: "/check" | "/clean" | "/enable" | "/delete" | "/disable" => command::command(self, command, msg, words).await,
bb89b6fab8 2025-06-15 261: "/start" => command::start(self, msg).await,
bb89b6fab8 2025-06-15 262: "/list" => command::list(self, msg).await,
fae13a0e55 2025-06-28 263: "/add" | "/update" => command::update(self, command, msg, words).await,
bb89b6fab8 2025-06-15 264: any => Err(anyhow!("Unknown command: {any}")),
bb89b6fab8 2025-06-15 265: };
bb89b6fab8 2025-06-15 266: if let Err(err) = res {
bb89b6fab8 2025-06-15 267: if let Err(err2) = self.send(format!("\\#error\n```\n{err:?}\n```"),
bb89b6fab8 2025-06-15 268: Some(msg.chat.get_id()),
bb89b6fab8 2025-06-15 269: Some(ParseMode::MarkdownV2)
bb89b6fab8 2025-06-15 270: ).await{
bb89b6fab8 2025-06-15 271: dbg!(err2);
bb89b6fab8 2025-06-15 272: };
bb89b6fab8 2025-06-15 273: }
bb89b6fab8 2025-06-15 274: };
bb89b6fab8 2025-06-15 275: };
e624ef9d66 2025-04-20 276: }
9171c791eb 2021-11-13 277: }