Annotation For src/main.rs
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Origin for each line in src/main.rs from check-in ebe7c281a5:

6ac5737a72 2020-11-18    1: use std::collections::BTreeMap;
6ac5737a72 2020-11-18    2: 
61df933942 2020-11-18    3: use config;
61df933942 2020-11-18    4: 
61df933942 2020-11-18    5: use tokio;
423cadd9c7 2020-11-27    6: 
61df933942 2020-11-18    7: use rss;
423cadd9c7 2020-11-27    8: 
61df933942 2020-11-18    9: use chrono::DateTime;
61df933942 2020-11-18   10: 
61df933942 2020-11-18   11: use regex::Regex;
61df933942 2020-11-18   12: 
61df933942 2020-11-18   13: use telegram_bot::*;
423cadd9c7 2020-11-27   14: use tokio::stream::StreamExt;
61df933942 2020-11-18   15: 
61df933942 2020-11-18   16: use sqlx::postgres::PgPoolOptions;
61df933942 2020-11-18   17: use sqlx::Row;
423cadd9c7 2020-11-27   18: use sqlx::Done; // .rows_affected()
4acdad1942 2020-11-26   19: 
4acdad1942 2020-11-26   20: #[macro_use]
4acdad1942 2020-11-26   21: extern crate lazy_static;
61df933942 2020-11-18   22: 
4acdad1942 2020-11-26   23: use anyhow::{anyhow, Context, Result};
61df933942 2020-11-18   24: 
0191d490fe 2020-11-18   25: #[derive(Clone)]
61df933942 2020-11-18   26: struct Core {
61df933942 2020-11-18   27: 	owner: i64,
0191d490fe 2020-11-18   28: 	api_key: String,
61df933942 2020-11-18   29: 	owner_chat: UserId,
61df933942 2020-11-18   30: 	tg: telegram_bot::Api,
61df933942 2020-11-18   31: 	my: User,
61df933942 2020-11-18   32: 	pool: sqlx::Pool<sqlx::Postgres>,
61df933942 2020-11-18   33: }
61df933942 2020-11-18   34: 
61df933942 2020-11-18   35: impl Core {
61df933942 2020-11-18   36: 	async fn new(settings: config::Config) -> Result<Core> {
61df933942 2020-11-18   37: 		let owner = settings.get_int("owner")?;
0191d490fe 2020-11-18   38: 		let api_key = settings.get_str("api_key")?;
0191d490fe 2020-11-18   39: 		let tg = Api::new(&api_key);
0191d490fe 2020-11-18   40: 		let core = Core {
0191d490fe 2020-11-18   41: 			owner: owner,
0191d490fe 2020-11-18   42: 			api_key: api_key.clone(),
0191d490fe 2020-11-18   43: 			my: tg.send(telegram_bot::GetMe).await?,
0191d490fe 2020-11-18   44: 			tg: tg,
0191d490fe 2020-11-18   45: 			owner_chat: UserId::new(owner),
3d3fde1b28 2020-11-25   46: 			pool: PgPoolOptions::new()
3d3fde1b28 2020-11-25   47: 				.max_connections(5)
3d3fde1b28 2020-11-25   48: 				.connect_timeout(std::time::Duration::new(300, 0))
3d3fde1b28 2020-11-25   49: 				.idle_timeout(std::time::Duration::new(60, 0))
3d3fde1b28 2020-11-25   50: 				.connect_lazy(&settings.get_str("pg")?)?,
0191d490fe 2020-11-18   51: 		};
0191d490fe 2020-11-18   52: 		let clone = core.clone();
0191d490fe 2020-11-18   53: 		tokio::spawn(async move {
423cadd9c7 2020-11-27   54: 			if let Err(err) = &clone.autofetch().await {
423cadd9c7 2020-11-27   55: 				if let Err(err) = clone.debug(&err.to_string()) {
423cadd9c7 2020-11-27   56: 					eprintln!("Autofetch error: {}", err);
423cadd9c7 2020-11-27   57: 				};
0191d490fe 2020-11-18   58: 			}
0191d490fe 2020-11-18   59: 		});
0191d490fe 2020-11-18   60: 		Ok(core)
61df933942 2020-11-18   61: 	}
61df933942 2020-11-18   62: 
61df933942 2020-11-18   63: 	fn stream(&self) -> telegram_bot::UpdatesStream {
61df933942 2020-11-18   64: 		self.tg.stream()
61df933942 2020-11-18   65: 	}
61df933942 2020-11-18   66: 
61df933942 2020-11-18   67: 	fn debug(&self, msg: &str) -> Result<()> {
61df933942 2020-11-18   68: 		self.tg.spawn(SendMessage::new(self.owner_chat, msg));
61df933942 2020-11-18   69: 		Ok(())
61df933942 2020-11-18   70: 	}
61df933942 2020-11-18   71: 
ebe7c281a5 2020-11-27   72: 	async fn check<S>(&self, id: &i32, owner: S, real: bool) -> Result<()>
ebe7c281a5 2020-11-27   73: 	where S: Into<i64> {
ebe7c281a5 2020-11-27   74: 		let owner: i64 = owner.into();
423cadd9c7 2020-11-27   75: 		let mut conn = self.pool.acquire().await
423cadd9c7 2020-11-27   76: 			.with_context(|| format!("πŸ›‘ Query queue fetch conn:\n{:?}", &self.pool))?;
ebe7c281a5 2020-11-27   77: 		let row = sqlx::query("select source_id, channel_id, url, iv_hash, owner from rsstg_source where source_id = $1 and owner = $2")
423cadd9c7 2020-11-27   78: 			.bind(id)
ebe7c281a5 2020-11-27   79: 			.bind(owner)
423cadd9c7 2020-11-27   80: 			.fetch_one(&mut conn).await
423cadd9c7 2020-11-27   81: 			.with_context(|| format!("πŸ›‘ Query source:\n{:?}", &self.pool))?;
423cadd9c7 2020-11-27   82: 		drop(conn);
423cadd9c7 2020-11-27   83: 		let channel_id: i64 = row.try_get("channel_id")?;
423cadd9c7 2020-11-27   84: 		let destination = match real {
423cadd9c7 2020-11-27   85: 			true => UserId::new(channel_id),
423cadd9c7 2020-11-27   86: 			false => UserId::new(row.try_get("owner")?),
423cadd9c7 2020-11-27   87: 		};
423cadd9c7 2020-11-27   88: 		let url: &str = row.try_get("url")?;
423cadd9c7 2020-11-27   89: 		let mut this_fetch: Option<DateTime<chrono::FixedOffset>> = None;
423cadd9c7 2020-11-27   90: 		let iv_hash: Option<&str> = row.try_get("iv_hash")?;
423cadd9c7 2020-11-27   91: 		let mut posts: BTreeMap<DateTime<chrono::FixedOffset>, String> = BTreeMap::new();
423cadd9c7 2020-11-27   92: 		let feed = rss::Channel::from_url(url)
423cadd9c7 2020-11-27   93: 			.with_context(|| format!("πŸ›‘ Problem opening feed url:\n{}", &url))?;
423cadd9c7 2020-11-27   94: 		for item in feed.items() {
423cadd9c7 2020-11-27   95: 			let date = match item.pub_date() {
423cadd9c7 2020-11-27   96: 				Some(feed_date) => DateTime::parse_from_rfc2822(feed_date),
423cadd9c7 2020-11-27   97: 				None => DateTime::parse_from_rfc3339(&item.dublin_core_ext().unwrap().dates()[0]),
423cadd9c7 2020-11-27   98: 			}?;
423cadd9c7 2020-11-27   99: 			let url = item.link().unwrap().to_string();
423cadd9c7 2020-11-27  100: 			posts.insert(date.clone(), url.clone());
423cadd9c7 2020-11-27  101: 		};
423cadd9c7 2020-11-27  102: 		for (date, url) in posts.iter() {
423cadd9c7 2020-11-27  103: 			let mut conn = self.pool.acquire().await
423cadd9c7 2020-11-27  104: 				.with_context(|| format!("πŸ›‘ Check post fetch conn:\n{:?}", &self.pool))?;
423cadd9c7 2020-11-27  105: 			let row = sqlx::query("select exists(select true from rsstg_post where url = $1 and source_id = $2) as exists;")
423cadd9c7 2020-11-27  106: 				.bind(&url)
423cadd9c7 2020-11-27  107: 				.bind(id)
423cadd9c7 2020-11-27  108: 				.fetch_one(&mut conn).await
423cadd9c7 2020-11-27  109: 				.with_context(|| format!("πŸ›‘ Check post:\n{:?}", &conn))?;
423cadd9c7 2020-11-27  110: 			let exists: bool = row.try_get("exists")?;
423cadd9c7 2020-11-27  111: 			if ! exists {
423cadd9c7 2020-11-27  112: 				if this_fetch == None || *date > this_fetch.unwrap() {
423cadd9c7 2020-11-27  113: 					this_fetch = Some(*date);
423cadd9c7 2020-11-27  114: 				};
423cadd9c7 2020-11-27  115: 				self.tg.send( match iv_hash {
423cadd9c7 2020-11-27  116: 						Some(x) => SendMessage::new(destination, format!("<a href=\"https://t.me/iv?url={}&rhash={}\"> </a>{0}", url, x)),
423cadd9c7 2020-11-27  117: 						None => SendMessage::new(destination, format!("{}", url)),
423cadd9c7 2020-11-27  118: 					}.parse_mode(types::ParseMode::Html)).await
423cadd9c7 2020-11-27  119: 					.context("πŸ›‘ Can't post message:")?;
423cadd9c7 2020-11-27  120: 				sqlx::query("insert into rsstg_post (source_id, posted, url) values ($1, $2, $3);")
423cadd9c7 2020-11-27  121: 					.bind(id)
423cadd9c7 2020-11-27  122: 					.bind(date)
423cadd9c7 2020-11-27  123: 					.bind(url)
423cadd9c7 2020-11-27  124: 					.execute(&mut conn).await
423cadd9c7 2020-11-27  125: 					.with_context(|| format!("πŸ›‘Record post:\n{:?}", &conn))?;
423cadd9c7 2020-11-27  126: 				drop(conn);
423cadd9c7 2020-11-27  127: 				tokio::time::delay_for(std::time::Duration::new(4, 0)).await;
423cadd9c7 2020-11-27  128: 			};
423cadd9c7 2020-11-27  129: 		};
423cadd9c7 2020-11-27  130: 		posts.clear();
423cadd9c7 2020-11-27  131: 		let mut conn = self.pool.acquire().await
423cadd9c7 2020-11-27  132: 			.with_context(|| format!("πŸ›‘ Update scrape fetch conn:\n{:?}", &self.pool))?;
423cadd9c7 2020-11-27  133: 		sqlx::query("update rsstg_source set last_scrape = now() where source_id = $1;")
423cadd9c7 2020-11-27  134: 			.bind(id)
423cadd9c7 2020-11-27  135: 			.execute(&mut conn).await
423cadd9c7 2020-11-27  136: 			.with_context(|| format!("πŸ›‘ Update scrape:\n{:?}", &conn))?;
423cadd9c7 2020-11-27  137: 		Ok(())
423cadd9c7 2020-11-27  138: 	}
423cadd9c7 2020-11-27  139: 
ebe7c281a5 2020-11-27  140: 	async fn clean<S>(&self, source_id: &i32, id: S) -> Result<String>
ebe7c281a5 2020-11-27  141: 	where S: Into<i64> {
ebe7c281a5 2020-11-27  142: 		let id: i64 = id.into();
423cadd9c7 2020-11-27  143: 		let mut conn = self.pool.acquire().await
423cadd9c7 2020-11-27  144: 			.with_context(|| format!("πŸ›‘ Clean fetch conn:\n{:?}", &self.pool))?;
ebe7c281a5 2020-11-27  145: 		match sqlx::query("delete from rsstg_post p using rsstg_source s where p.source_id = $1 and owner = $2 and p.source_id = s.source_id;")
423cadd9c7 2020-11-27  146: 			.bind(source_id)
ebe7c281a5 2020-11-27  147: 			.bind(id)
423cadd9c7 2020-11-27  148: 			.execute(&mut conn).await
ebe7c281a5 2020-11-27  149: 			.with_context(|| format!("πŸ›‘ Clean seen posts:\n{:?}", &self.pool))?
ebe7c281a5 2020-11-27  150: 			.rows_affected() {
ebe7c281a5 2020-11-27  151: 			0 => { Ok("No data found found\\.".to_string()) },
ebe7c281a5 2020-11-27  152: 			x => { Ok(format!("{} posts purged\\.", x)) },
ebe7c281a5 2020-11-27  153: 		}
423cadd9c7 2020-11-27  154: 	}
423cadd9c7 2020-11-27  155: 
ebe7c281a5 2020-11-27  156: 	async fn enable<S>(&self, source_id: &i32, id: S) -> Result<&str>
ebe7c281a5 2020-11-27  157: 	where S: Into<i64> {
ebe7c281a5 2020-11-27  158: 		let id: i64 = id.into();
4acdad1942 2020-11-26  159: 		let mut conn = self.pool.acquire().await
4acdad1942 2020-11-26  160: 			.with_context(|| format!("πŸ›‘ Enable fetch conn:\n{:?}", &self.pool))?;
4acdad1942 2020-11-26  161: 		match sqlx::query("update rsstg_source set enabled = true where source_id = $1 and owner = $2")
4acdad1942 2020-11-26  162: 			.bind(source_id)
ebe7c281a5 2020-11-27  163: 			.bind(id)
4acdad1942 2020-11-26  164: 			.execute(&mut conn).await
4acdad1942 2020-11-26  165: 			.with_context(|| format!("πŸ›‘ Enable source:\n\n{:?}", &self.pool))?
4acdad1942 2020-11-26  166: 			.rows_affected() {
4acdad1942 2020-11-26  167: 			1 => { Ok("Source disabled\\.") },
4acdad1942 2020-11-26  168: 			0 => { Ok("Source not found\\.") },
4acdad1942 2020-11-26  169: 			_ => { Err(anyhow!("Database error.")) },
4acdad1942 2020-11-26  170: 		}
4acdad1942 2020-11-26  171: 	}
4acdad1942 2020-11-26  172: 
ebe7c281a5 2020-11-27  173: 	async fn disable<S>(&self, source_id: &i32, id: S) -> Result<&str>
ebe7c281a5 2020-11-27  174: 	where S: Into<i64> {
ebe7c281a5 2020-11-27  175: 		let id: i64 = id.into();
4acdad1942 2020-11-26  176: 		let mut conn = self.pool.acquire().await
4acdad1942 2020-11-26  177: 			.with_context(|| format!("πŸ›‘ Disable fetch conn:\n{:?}", &self.pool))?;
4acdad1942 2020-11-26  178: 		match sqlx::query("update rsstg_source set enabled = false where source_id = $1 and owner = $2")
4acdad1942 2020-11-26  179: 			.bind(source_id)
ebe7c281a5 2020-11-27  180: 			.bind(id)
4acdad1942 2020-11-26  181: 			.execute(&mut conn).await
4acdad1942 2020-11-26  182: 			.with_context(|| format!("πŸ›‘ Disable source:\n\n{:?}", &self.pool))?
4acdad1942 2020-11-26  183: 			.rows_affected() {
4acdad1942 2020-11-26  184: 			1 => { Ok("Source disabled\\.") },
4acdad1942 2020-11-26  185: 			0 => { Ok("Source not found\\.") },
4acdad1942 2020-11-26  186: 			_ => { Err(anyhow!("Database error.")) },
4acdad1942 2020-11-26  187: 		}
61df933942 2020-11-18  188: 	}
61df933942 2020-11-18  189: 
61df933942 2020-11-18  190: 	async fn autofetch(&self) -> Result<()> {
61df933942 2020-11-18  191: 		let mut delay = chrono::Duration::minutes(5);
61df933942 2020-11-18  192: 		let mut now;
61df933942 2020-11-18  193: 		loop {
423cadd9c7 2020-11-27  194: 			let mut conn = self.pool.acquire().await
423cadd9c7 2020-11-27  195: 				.with_context(|| format!("πŸ›‘ Autofetch fetch conn:\n{:?}", &self.pool))?;
423cadd9c7 2020-11-27  196: 			now = chrono::Local::now();
ebe7c281a5 2020-11-27  197: 			let mut queue = sqlx::query("select source_id, next_fetch, owner from rsstg_order natural left join rsstg_source natural left join rsstg_channel where next_fetch < now();")
423cadd9c7 2020-11-27  198: 				.fetch_all(&mut conn).await?;
423cadd9c7 2020-11-27  199: 			for row in queue.iter() {
423cadd9c7 2020-11-27  200: 				let source_id: i32 = row.try_get("source_id")?;
ebe7c281a5 2020-11-27  201: 				let owner: i64 = row.try_get("owner")?;
423cadd9c7 2020-11-27  202: 				let next_fetch: DateTime<chrono::Local> = row.try_get("next_fetch")?;
423cadd9c7 2020-11-27  203: 				if next_fetch < now {
423cadd9c7 2020-11-27  204: 					sqlx::query("update rsstg_source set last_scrape = now() + interval '1 hour' where source_id = $1;")
423cadd9c7 2020-11-27  205: 						.bind(source_id)
423cadd9c7 2020-11-27  206: 						.execute(&mut conn).await
423cadd9c7 2020-11-27  207: 						.with_context(|| format!("πŸ›‘ Lock source:\n\n{:?}", &self.pool))?;
423cadd9c7 2020-11-27  208: 					let clone = self.clone();
423cadd9c7 2020-11-27  209: 					tokio::spawn(async move {
ebe7c281a5 2020-11-27  210: 						if let Err(err) = clone.check(&source_id, owner, true).await {
423cadd9c7 2020-11-27  211: 							if let Err(err) = clone.debug(&err.to_string()) {
423cadd9c7 2020-11-27  212: 								eprintln!("Check error: {}", err);
423cadd9c7 2020-11-27  213: 							};
423cadd9c7 2020-11-27  214: 						};
423cadd9c7 2020-11-27  215: 					});
423cadd9c7 2020-11-27  216: 				} else {
423cadd9c7 2020-11-27  217: 					if next_fetch - now < delay {
423cadd9c7 2020-11-27  218: 						delay = next_fetch - now;
423cadd9c7 2020-11-27  219: 					}
423cadd9c7 2020-11-27  220: 				}
423cadd9c7 2020-11-27  221: 			};
423cadd9c7 2020-11-27  222: 			queue.clear();
61df933942 2020-11-18  223: 			tokio::time::delay_for(delay.to_std()?).await;
075be7e40e 2020-11-18  224: 			delay = chrono::Duration::minutes(5);
61df933942 2020-11-18  225: 		}
61df933942 2020-11-18  226: 	}
61df933942 2020-11-18  227: 
ebe7c281a5 2020-11-27  228: 	async fn list(&self, id: telegram_bot::UserId) -> Result<Vec<String>> {
ebe7c281a5 2020-11-27  229: 		let id = i64::from(id);
ebe7c281a5 2020-11-27  230: 		let mut reply = vec![];
ebe7c281a5 2020-11-27  231: 		let mut conn = self.pool.acquire().await
ebe7c281a5 2020-11-27  232: 			.with_context(|| format!("πŸ›‘ List fetch conn:\n{:?}", &self.pool))?;
ebe7c281a5 2020-11-27  233: 		reply.push("Channels:".to_string());
ebe7c281a5 2020-11-27  234: 		let rows = sqlx::query("select source_id, username, enabled, url, iv_hash from rsstg_source left join rsstg_channel using (channel_id) where owner = $1 order by source_id")
ebe7c281a5 2020-11-27  235: 			.bind(id)
ebe7c281a5 2020-11-27  236: 			.fetch_all(&mut conn).await?;
ebe7c281a5 2020-11-27  237: 		for row in rows.iter() {
ebe7c281a5 2020-11-27  238: 			let source_id: i32 = row.try_get("source_id")?;
ebe7c281a5 2020-11-27  239: 			let username: &str = row.try_get("username")?;
ebe7c281a5 2020-11-27  240: 			let enabled: bool = row.try_get("enabled")?;
ebe7c281a5 2020-11-27  241: 			let url: &str = row.try_get("url")?;
ebe7c281a5 2020-11-27  242: 			let iv_hash: Option<&str> = row.try_get("iv_hash")?;
ebe7c281a5 2020-11-27  243: 			reply.push(format!("\n\\#️⃣ {} \\*️⃣ `{}` {}\nπŸ”— `{}`", source_id, username,  
ebe7c281a5 2020-11-27  244: 				match enabled {
ebe7c281a5 2020-11-27  245: 					true  => "πŸ”„ enabled",
ebe7c281a5 2020-11-27  246: 					false => "β›” disabled",
ebe7c281a5 2020-11-27  247: 				}, url));
ebe7c281a5 2020-11-27  248: 			if let Some(hash) = iv_hash {
ebe7c281a5 2020-11-27  249: 				reply.push(format!("IV `{}`", hash));
ebe7c281a5 2020-11-27  250: 			}
ebe7c281a5 2020-11-27  251: 		};
ebe7c281a5 2020-11-27  252: 		Ok(reply)
ebe7c281a5 2020-11-27  253: 	}
61df933942 2020-11-18  254: }
61df933942 2020-11-18  255: 
ec616a2a43 2020-11-19  256: #[tokio::main]
61df933942 2020-11-18  257: async fn main() -> Result<()> {
61df933942 2020-11-18  258: 	let mut settings = config::Config::default();
61df933942 2020-11-18  259: 	settings.merge(config::File::with_name("rsstg"))?;
61df933942 2020-11-18  260: 
61df933942 2020-11-18  261: 	let core = Core::new(settings).await?;
61df933942 2020-11-18  262: 
61df933942 2020-11-18  263: 	let mut stream = core.stream();
61df933942 2020-11-18  264: 
61df933942 2020-11-18  265: 	while let Some(update) = stream.next().await {
423cadd9c7 2020-11-27  266: 		if let Err(err) = handle(update?, &core).await {
423cadd9c7 2020-11-27  267: 			core.debug(&err.to_string())?;
4acdad1942 2020-11-26  268: 		};
4acdad1942 2020-11-26  269: 	}
4acdad1942 2020-11-26  270: 
4acdad1942 2020-11-26  271: 	Ok(())
4acdad1942 2020-11-26  272: }
4acdad1942 2020-11-26  273: 
4acdad1942 2020-11-26  274: async fn handle(update: telegram_bot::Update, core: &Core) -> Result<()> {
4acdad1942 2020-11-26  275: 	lazy_static! {
4acdad1942 2020-11-26  276: 		static ref RE_USERNAME: Regex = Regex::new(r"^@[a-zA-Z][a-zA-Z0-9_]+$").unwrap();
4acdad1942 2020-11-26  277: 		static ref RE_LINK: Regex = Regex::new(r"^https?://[a-zA-Z.0-9-]+/[-_a-zA-Z.0-9/?=]+$").unwrap();
4acdad1942 2020-11-26  278: 		static ref RE_IV_HASH: Regex = Regex::new(r"^[a-f0-9]{14}$").unwrap();
4acdad1942 2020-11-26  279: 	}
4acdad1942 2020-11-26  280: 
4acdad1942 2020-11-26  281: 	match update.kind {
4acdad1942 2020-11-26  282: 		UpdateKind::Message(message) => {
4acdad1942 2020-11-26  283: 			let mut reply: Vec<String> = vec![];
4acdad1942 2020-11-26  284: 			match message.kind {
4acdad1942 2020-11-26  285: 				MessageKind::Text { ref data, .. } => {
4acdad1942 2020-11-26  286: 					let mut words = data.split_whitespace();
4acdad1942 2020-11-26  287: 					let cmd = words.next().unwrap();
4acdad1942 2020-11-26  288: 					match cmd {
4acdad1942 2020-11-26  289: 
4acdad1942 2020-11-26  290: // start
4acdad1942 2020-11-26  291: 
4acdad1942 2020-11-26  292: 						"/start" => {
4acdad1942 2020-11-26  293: 							reply.push("We are open\\. Probably\\. Visit [channel](https://t.me/rsstg_bot_help/3) for details\\.".to_string());
4acdad1942 2020-11-26  294: 						},
4acdad1942 2020-11-26  295: 
4acdad1942 2020-11-26  296: // list
4acdad1942 2020-11-26  297: 
4acdad1942 2020-11-26  298: 						"/list" => {
ebe7c281a5 2020-11-27  299: 							reply.append(&mut core.list(message.from.id).await?);
4acdad1942 2020-11-26  300: 						},
4acdad1942 2020-11-26  301: 
4acdad1942 2020-11-26  302: // add
4acdad1942 2020-11-26  303: 
4acdad1942 2020-11-26  304: 						"/add" | "/update" => {
4acdad1942 2020-11-26  305: 							let mut source_id: i32 = 0;
4acdad1942 2020-11-26  306: 							if cmd == "/update" {
4acdad1942 2020-11-26  307: 								source_id = words.next().unwrap().parse::<i32>()?;
4acdad1942 2020-11-26  308: 							}
4acdad1942 2020-11-26  309: 							let (channel, url, iv_hash) = (words.next().unwrap(), words.next().unwrap(), words.next());
4acdad1942 2020-11-26  310: 							let ok_link = RE_LINK.is_match(&url);
4acdad1942 2020-11-26  311: 							let ok_hash = match iv_hash {
4acdad1942 2020-11-26  312: 								Some(hash) => RE_IV_HASH.is_match(&hash),
4acdad1942 2020-11-26  313: 								None => true,
4acdad1942 2020-11-26  314: 							};
4acdad1942 2020-11-26  315: 							if ! ok_link {
4acdad1942 2020-11-26  316: 								reply.push("Link should be link to atom/rss feed, something like \"https://domain/path\"\\.".to_string());
4acdad1942 2020-11-26  317: 								core.debug(&format!("Url: {:?}", &url))?;
4acdad1942 2020-11-26  318: 							}
4acdad1942 2020-11-26  319: 							if ! ok_hash {
4acdad1942 2020-11-26  320: 								reply.push("IV hash should be 14 hex digits.".to_string());
4acdad1942 2020-11-26  321: 								core.debug(&format!("IV: {:?}", &iv_hash))?;
4acdad1942 2020-11-26  322: 							}
4acdad1942 2020-11-26  323: 							if ok_link && ok_hash {
4acdad1942 2020-11-26  324: 								let chan: Option<i64> = match sqlx::query("select channel_id from rsstg_channel where username = $1")
4acdad1942 2020-11-26  325: 									.bind(channel)
4acdad1942 2020-11-26  326: 									.fetch_one(&core.pool).await {
4acdad1942 2020-11-26  327: 										Ok(chan) => Some(chan.try_get("channel_id")?),
4acdad1942 2020-11-26  328: 										Err(sqlx::Error::RowNotFound) => {
4acdad1942 2020-11-26  329: 											let chan_id = i64::from(core.tg.send(telegram_bot::GetChat::new(telegram_bot::types::ChatRef::ChannelUsername(channel.to_string()))).await?.id());
4acdad1942 2020-11-26  330: 											sqlx::query("insert into rsstg_channel (channel_id, username) values ($1, $2);")
4acdad1942 2020-11-26  331: 												.bind(chan_id)
4acdad1942 2020-11-26  332: 												.bind(channel)
4acdad1942 2020-11-26  333: 												.execute(&core.pool).await?;
4acdad1942 2020-11-26  334: 											Some(chan_id)
4acdad1942 2020-11-26  335: 										},
4acdad1942 2020-11-26  336: 										Err(err) => {
4acdad1942 2020-11-26  337: 											reply.push("Sorry, unknown error\\.".to_string());
4acdad1942 2020-11-26  338: 											core.debug(&format!("Sorry, unknown error:\n{:#?}\n", err))?;
4acdad1942 2020-11-26  339: 											None
4acdad1942 2020-11-26  340: 										},
4acdad1942 2020-11-26  341: 								};
4acdad1942 2020-11-26  342: 								if let Some(chan) = chan {
4acdad1942 2020-11-26  343: 									match if cmd == "/update" {
4acdad1942 2020-11-26  344: 											sqlx::query("update rsstg_source set channel_id = $2, url = $3, iv_hash = $4, owner = $4 where source_id = $1").bind(source_id)
4acdad1942 2020-11-26  345: 										} else {
4acdad1942 2020-11-26  346: 											sqlx::query("insert into rsstg_source (channel_id, url, iv_hash, owner) values ($1, $2, $3, $4)")
4acdad1942 2020-11-26  347: 										}
4acdad1942 2020-11-26  348: 										.bind(chan)
4acdad1942 2020-11-26  349: 										.bind(url)
4acdad1942 2020-11-26  350: 										.bind(iv_hash)
4acdad1942 2020-11-26  351: 										.bind(i64::from(message.from.id))
4acdad1942 2020-11-26  352: 										.execute(&core.pool).await {
4acdad1942 2020-11-26  353: 										Ok(_) => reply.push("Channel added\\.".to_string()),
4acdad1942 2020-11-26  354: 										Err(sqlx::Error::Database(err)) => {
4acdad1942 2020-11-26  355: 											match err.downcast::<sqlx::postgres::PgDatabaseError>().routine() {
4acdad1942 2020-11-26  356: 												Some("_bt_check_unique", ) => {
4acdad1942 2020-11-26  357: 													reply.push("Duplicate key\\.".to_string());
4acdad1942 2020-11-26  358: 												},
4acdad1942 2020-11-26  359: 												Some(_) => {
4acdad1942 2020-11-26  360: 													reply.push("Database error\\.".to_string());
4acdad1942 2020-11-26  361: 												},
4acdad1942 2020-11-26  362: 												None => {
4acdad1942 2020-11-26  363: 													reply.push("No database error extracted\\.".to_string());
4acdad1942 2020-11-26  364: 												},
4acdad1942 2020-11-26  365: 											};
4acdad1942 2020-11-26  366: 										},
4acdad1942 2020-11-26  367: 										Err(err) => {
4acdad1942 2020-11-26  368: 											reply.push("Sorry, unknown error\\.".to_string());
4acdad1942 2020-11-26  369: 											core.debug(&format!("Sorry, unknown error:\n{:#?}\n", err))?;
4acdad1942 2020-11-26  370: 										},
4acdad1942 2020-11-26  371: 									};
4acdad1942 2020-11-26  372: 								};
4acdad1942 2020-11-26  373: 							};
4acdad1942 2020-11-26  374: 						},
4acdad1942 2020-11-26  375: 
4acdad1942 2020-11-26  376: // addchan
4acdad1942 2020-11-26  377: 
4acdad1942 2020-11-26  378: 						"/addchan" => {
4acdad1942 2020-11-26  379: 							let channel = words.next().unwrap();
4acdad1942 2020-11-26  380: 							if ! RE_USERNAME.is_match(&channel) {
4acdad1942 2020-11-26  381: 								reply.push("Usernames should be something like \"@\\[a\\-zA\\-Z]\\[a\\-zA\\-Z0\\-9\\_]+\", aren't they?".to_string());
4acdad1942 2020-11-26  382: 							} else {
4acdad1942 2020-11-26  383: 								let chan: Option<i64> = match sqlx::query("select channel_id from rsstg_channel where username = $1")
4acdad1942 2020-11-26  384: 									.bind(channel)
4acdad1942 2020-11-26  385: 									.fetch_one(&core.pool).await {
4acdad1942 2020-11-26  386: 										Ok(chan) => Some(chan.try_get("channel_id")?),
4acdad1942 2020-11-26  387: 										Err(sqlx::Error::RowNotFound) => None,
4acdad1942 2020-11-26  388: 										Err(err) => {
4acdad1942 2020-11-26  389: 											reply.push("Sorry, unknown error\\.".to_string());
4acdad1942 2020-11-26  390: 											core.debug(&format!("Sorry, unknown error:\n{:#?}", err))?;
4acdad1942 2020-11-26  391: 											None
4acdad1942 2020-11-26  392: 										},
4acdad1942 2020-11-26  393: 								};
4acdad1942 2020-11-26  394: 								match chan {
4acdad1942 2020-11-26  395: 									Some(chan) => {
4acdad1942 2020-11-26  396: 										let new_chan = core.tg.send(telegram_bot::GetChat::new(telegram_bot::types::ChatId::new(chan))).await?;
4acdad1942 2020-11-26  397: 										if i64::from(new_chan.id()) == chan {
4acdad1942 2020-11-26  398: 											reply.push("I already know that channel\\.".to_string());
4acdad1942 2020-11-26  399: 										} else {
4acdad1942 2020-11-26  400: 											reply.push("Hmm, channel has changed… I'll fix it later\\.".to_string());
4acdad1942 2020-11-26  401: 										};
4acdad1942 2020-11-26  402: 									},
4acdad1942 2020-11-26  403: 									None => {
4acdad1942 2020-11-26  404: 										match core.tg.send(telegram_bot::GetChatAdministrators::new(telegram_bot::types::ChatRef::ChannelUsername(channel.to_string()))).await {
4acdad1942 2020-11-26  405: 											Ok(chan_adm) => {
4acdad1942 2020-11-26  406: 												let (mut me, mut user) = (false, false);
4acdad1942 2020-11-26  407: 												for admin in &chan_adm {
4acdad1942 2020-11-26  408: 													if admin.user.id == core.my.id {
4acdad1942 2020-11-26  409: 														me = true;
4acdad1942 2020-11-26  410: 													};
4acdad1942 2020-11-26  411: 													if admin.user.id == message.from.id {
4acdad1942 2020-11-26  412: 														user = true;
4acdad1942 2020-11-26  413: 													};
4acdad1942 2020-11-26  414: 												};
4acdad1942 2020-11-26  415: 												if ! me   { reply.push("I need to be admin on that channel\\.".to_string()); };
4acdad1942 2020-11-26  416: 												if ! user { reply.push("You should be admin on that channel\\.".to_string()); };
4acdad1942 2020-11-26  417: 												if me && user {
4acdad1942 2020-11-26  418: 													let chan_id = core.tg.send(telegram_bot::GetChat::new(telegram_bot::types::ChatRef::ChannelUsername(channel.to_string()))).await?;
4acdad1942 2020-11-26  419: 													sqlx::query("insert into rsstg_channel (channel_id, username) values ($1, $2);")
4acdad1942 2020-11-26  420: 														.bind(i64::from(chan_id.id()))
4acdad1942 2020-11-26  421: 														.bind(channel)
4acdad1942 2020-11-26  422: 														.execute(&core.pool).await?;
4acdad1942 2020-11-26  423: 													reply.push("Good, I know that channel now\\.\n".to_string());
4acdad1942 2020-11-26  424: 												};
4acdad1942 2020-11-26  425: 											},
4acdad1942 2020-11-26  426: 											Err(_) => {
4acdad1942 2020-11-26  427: 												reply.push("Sorry, I have no access to that chat\\.".to_string());
4acdad1942 2020-11-26  428: 											},
4acdad1942 2020-11-26  429: 										};
4acdad1942 2020-11-26  430: 									},
4acdad1942 2020-11-26  431: 								};
4acdad1942 2020-11-26  432: 							};
4acdad1942 2020-11-26  433: 						},
4acdad1942 2020-11-26  434: 
4acdad1942 2020-11-26  435: // check
4acdad1942 2020-11-26  436: 
4acdad1942 2020-11-26  437: 						"/check" => {
4acdad1942 2020-11-26  438: 							match &words.next().unwrap().parse::<i32>() {
4acdad1942 2020-11-26  439: 								Err(err) => {
4acdad1942 2020-11-26  440: 									reply.push(format!("I need a number\\.\n{}", &err));
4acdad1942 2020-11-26  441: 								},
4acdad1942 2020-11-26  442: 								Ok(number) => {
ebe7c281a5 2020-11-27  443: 									core.check(&number, message.from.id, false).await
ebe7c281a5 2020-11-27  444: 										.context("πŸ›‘ Channel check failed.")?;
4acdad1942 2020-11-26  445: 								},
4acdad1942 2020-11-26  446: 							};
4acdad1942 2020-11-26  447: 						},
4acdad1942 2020-11-26  448: 
4acdad1942 2020-11-26  449: // clean
4acdad1942 2020-11-26  450: 
4acdad1942 2020-11-26  451: 						"/clean" => {
ebe7c281a5 2020-11-27  452: 							match &words.next().unwrap().parse::<i32>() {
ebe7c281a5 2020-11-27  453: 								Err(err) => {
ebe7c281a5 2020-11-27  454: 									reply.push(format!("I need a number\\.\n{}", &err));
ebe7c281a5 2020-11-27  455: 								},
ebe7c281a5 2020-11-27  456: 								Ok(number) => {
ebe7c281a5 2020-11-27  457: 									let result = core.clean(&number, message.from.id).await?;
ebe7c281a5 2020-11-27  458: 									reply.push(result.to_string());
ebe7c281a5 2020-11-27  459: 								},
ebe7c281a5 2020-11-27  460: 							};
4acdad1942 2020-11-26  461: 						},
4acdad1942 2020-11-26  462: 
4acdad1942 2020-11-26  463: // enable
4acdad1942 2020-11-26  464: 
4acdad1942 2020-11-26  465: 						"/enable" => {
4acdad1942 2020-11-26  466: 							match &words.next().unwrap().parse::<i32>() {
4acdad1942 2020-11-26  467: 								Err(err) => {
4acdad1942 2020-11-26  468: 									reply.push(format!("I need a number\\.\n{}", &err));
4acdad1942 2020-11-26  469: 								},
4acdad1942 2020-11-26  470: 								Ok(number) => {
4acdad1942 2020-11-26  471: 									let result = core.enable(&number, message.from.id).await?;
4acdad1942 2020-11-26  472: 									reply.push(result.to_string());
4acdad1942 2020-11-26  473: 								},
4acdad1942 2020-11-26  474: 							};
4acdad1942 2020-11-26  475: 						},
4acdad1942 2020-11-26  476: 
4acdad1942 2020-11-26  477: // disable
4acdad1942 2020-11-26  478: 
4acdad1942 2020-11-26  479: 						"/disable" => {
4acdad1942 2020-11-26  480: 							match &words.next().unwrap().parse::<i32>() {
4acdad1942 2020-11-26  481: 								Err(err) => {
4acdad1942 2020-11-26  482: 									reply.push(format!("I need a number\\.\n{}", &err));
4acdad1942 2020-11-26  483: 								},
4acdad1942 2020-11-26  484: 								Ok(number) => {
4acdad1942 2020-11-26  485: 									let result = core.disable(&number, message.from.id).await?;
4acdad1942 2020-11-26  486: 									reply.push(result.to_string());
4acdad1942 2020-11-26  487: 								},
4acdad1942 2020-11-26  488: 							};
4acdad1942 2020-11-26  489: 						},
4acdad1942 2020-11-26  490: 
4acdad1942 2020-11-26  491: 						_ => {
4acdad1942 2020-11-26  492: 						},
4acdad1942 2020-11-26  493: 					};
4acdad1942 2020-11-26  494: 				},
4acdad1942 2020-11-26  495: 				_ => {
4acdad1942 2020-11-26  496: 				},
4acdad1942 2020-11-26  497: 			};
4acdad1942 2020-11-26  498: 
4acdad1942 2020-11-26  499: 			if reply.len() > 0 {
423cadd9c7 2020-11-27  500: 				if let Err(err) = core.tg.send(message.text_reply(reply.join("\n")).parse_mode(types::ParseMode::MarkdownV2)).await {
423cadd9c7 2020-11-27  501: 					dbg!(reply.join("\n"));
423cadd9c7 2020-11-27  502: 					println!("{}", err);
423cadd9c7 2020-11-27  503: 				};
423cadd9c7 2020-11-27  504: 			};
4acdad1942 2020-11-26  505: 		},
4acdad1942 2020-11-26  506: 		_ => {},
4acdad1942 2020-11-26  507: 	};
61df933942 2020-11-18  508: 
61df933942 2020-11-18  509: 	Ok(())
61df933942 2020-11-18  510: }