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use crate::{
command,
sql::Db,
};
use std::{
borrow::Cow,
collections::{
BTreeMap,
HashSet,
},
};
use anyhow::{
anyhow,
bail,
Result,
};
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ParseMode,
SendMessage,
Update,
UpdateType,
UserPeerId,
},
};
use stacked_errors::{
Result,
StackableErr,
anyhow,
bail,
};
lazy_static!{
pub static ref RE_SPECIAL: Regex = Regex::new(r"([\-_*\[\]()~`>#+|{}\.!])").unwrap();
}
/// Encodes special HTML entities to prevent them interfering with Telegram HTML
pub fn encode (text: &str) -> Cow<'_, str> {
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pub db: Db,
sources: Arc<Mutex<HashSet<Arc<i32>>>>,
http_client: reqwest::Client,
}
impl Core {
pub async fn new(settings: config::Config) -> Result<Core> {
let owner_chat = ChatPeerId::from(settings.get_int("owner")?);
let api_key = settings.get_string("api_key")?;
let tg = Client::new(&api_key)?;
let owner_chat = ChatPeerId::from(settings.get_int("owner").stack()?);
let api_key = settings.get_string("api_key").stack()?;
let tg = Client::new(&api_key).stack()?;
let mut client = reqwest::Client::builder();
if let Ok(proxy) = settings.get_string("proxy") {
let proxy = reqwest::Proxy::all(proxy)?;
let proxy = reqwest::Proxy::all(proxy).stack()?;
client = client.proxy(proxy);
}
let http_client = client.build()?;
let me = tg.execute(GetBot).await?;
let http_client = client.build().stack()?;
let me = tg.execute(GetBot).await.stack()?;
let core = Core {
tg,
me,
owner_chat,
db: Db::new(&settings.get_string("pg")?)?,
db: Db::new(&settings.get_string("pg").stack()?)?,
sources: Arc::new(Mutex::new(HashSet::new())),
http_client,
// max_delay: 60,
};
let clone = core.clone();
task::spawn(async move {
loop {
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pub async fn send <S>(&self, msg: S, target: Option<ChatPeerId>, mode: Option<ParseMode>) -> Result<Message>
where S: Into<String> {
let msg = msg.into();
let mode = mode.unwrap_or(ParseMode::Html);
let target = target.unwrap_or(self.owner_chat);
Ok(self.tg.execute(
self.tg.execute(
SendMessage::new(target, msg)
.with_parse_mode(mode)
).await?)
).await.stack()
}
pub async fn check (&self, id: i32, real: bool) -> Result<String> {
let mut posted: i32 = 0;
let mut conn = self.db.begin().await?;
let mut conn = self.db.begin().await.stack()?;
let id = {
let mut set = self.sources.lock_arc().await;
match set.get(&id) {
Some(id) => id.clone(),
None => {
let id = Arc::new(id);
set.insert(id.clone());
id.clone()
},
}
};
let count = Arc::strong_count(&id);
if count == 2 {
let source = conn.get_source(*id, self.owner_chat).await?;
conn.set_scrape(*id).await?;
let source = conn.get_source(*id, self.owner_chat).await.stack()?;
conn.set_scrape(*id).await.stack()?;
let destination = ChatPeerId::from(match real {
true => source.channel_id,
false => source.owner,
});
let mut this_fetch: Option<DateTime<chrono::FixedOffset>> = None;
let mut posts: BTreeMap<DateTime<chrono::FixedOffset>, String> = BTreeMap::new();
let response = self.http_client.get(&source.url).send().await?;
let response = self.http_client.get(&source.url).send().await.stack()?;
let status = response.status();
let content = response.bytes().await?;
let content = response.bytes().await.stack()?;
match rss::Channel::read_from(&content[..]) {
Ok(feed) => {
for item in feed.items() {
if let Some(link) = item.link() {
let date = match item.pub_date() {
Some(feed_date) => DateTime::parse_from_rfc2822(feed_date),
None => DateTime::parse_from_rfc3339(&item.dublin_core_ext().unwrap().dates()[0]),
}?;
}.stack()?;
let url = link;
posts.insert(date, url.to_string());
}
};
},
Err(err) => match err {
rss::Error::InvalidStartTag => {
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},
rss::Error::Eof => (),
_ => bail!("Unsupported or mangled content:\n{:?}\n{err:#?}\n{status:#?}\n", &source.url)
}
};
for (date, url) in posts.iter() {
let post_url: Cow<str> = match source.url_re {
Some(ref x) => sedregex::ReplaceCommand::new(x)?.execute(url),
Some(ref x) => sedregex::ReplaceCommand::new(x).stack()?.execute(url),
None => url.into(),
};
if let Some(exists) = conn.exists(&post_url, *id).await? {
if let Some(exists) = conn.exists(&post_url, *id).await.stack()? {
if ! exists {
if this_fetch.is_none() || *date > this_fetch.unwrap() {
this_fetch = Some(*date);
};
self.send( match &source.iv_hash {
Some(hash) => format!("<a href=\"https://t.me/iv?url={post_url}&rhash={hash}\"> </a>{post_url}"),
None => format!("{post_url}"),
}, Some(destination), Some(ParseMode::Html)).await?;
conn.add_post(*id, date, &post_url).await?;
}, Some(destination), Some(ParseMode::Html)).await.stack()?;
conn.add_post(*id, date, &post_url).await.stack()?;
};
};
posted += 1;
};
posts.clear();
};
Ok(format!("Posted: {posted}"))
}
async fn autofetch(&self) -> Result<std::time::Duration> {
let mut delay = chrono::Duration::minutes(1);
let now = chrono::Local::now();
let queue = {
let mut conn = self.db.begin().await?;
conn.get_queue().await?
let mut conn = self.db.begin().await.stack()?;
conn.get_queue().await.stack()?
};
for row in queue {
if let Some(next_fetch) = row.next_fetch {
if next_fetch < now {
if let (Some(owner), Some(source_id)) = (row.owner, row.source_id) {
let clone = Core {
owner_chat: ChatPeerId::from(owner),
..self.clone()
};
let source = {
let mut conn = self.db.begin().await?;
let mut conn = self.db.begin().await.stack()?;
match conn.get_one(owner, source_id).await {
Ok(Some(source)) => source.to_string(),
Ok(None) => "Source not found in database?".to_string(),
Ok(None) => "Source not found in database.stack()?".to_string(),
Err(err) => format!("Failed to fetch source data:\n{err}"),
}
};
task::spawn(async move {
if let Err(err) = clone.check(source_id, true).await {
if let Err(err) = clone.send(&format!("{source}\n\nš {}", encode(&err.to_string())), None, Some(ParseMode::MarkdownV2)).await {
eprintln!("Check error: {err:?}");
// clone.disable(&source_id, owner).await.unwrap();
};
};
});
}
} else if next_fetch - now < delay {
delay = next_fetch - now;
}
}
};
Ok(delay.to_std()?)
delay.to_std().stack()
}
pub async fn list (&self, owner: UserPeerId) -> Result<String> {
let mut reply: Vec<String> = vec![];
reply.push("Channels:".into());
let mut conn = self.db.begin().await?;
for row in conn.get_list(owner).await? {
let mut conn = self.db.begin().await.stack()?;
for row in conn.get_list(owner).await.stack()? {
reply.push(row.to_string());
};
Ok(reply.join("\n\n"))
}
}
impl UpdateHandler for Core {
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