Lines of
src/command.rs
from check-in e624ef9d66
that are changed by the sequence of edits moving toward
check-in 0340541002:
1: use crate::core::Core;
2:
3: use std::borrow::Cow;
4:
5: use anyhow::{
6: bail,
7: Context,
8: Result
9: };
10: use frankenstein::{
11: methods::{
12: GetChatAdministratorsParams,
13: GetChatParams,
14: },
15: types::{
16: ChatId,
17: ChatMember,
18: },
19: AsyncTelegramApi,
20: ParseMode,
21: };
22: use lazy_static::lazy_static;
23: use regex::Regex;
24: use sedregex::ReplaceCommand;
25:
26: lazy_static! {
27: static ref RE_USERNAME: Regex = Regex::new(r"^@[a-zA-Z][a-zA-Z0-9_]+$").unwrap();
28: static ref RE_LINK: Regex = Regex::new(r"^https?://[a-zA-Z.0-9-]+/[-_a-zA-Z.:0-9/?=]+$").unwrap();
29: static ref RE_IV_HASH: Regex = Regex::new(r"^[a-f0-9]{14}$").unwrap();
30: }
31:
32: pub async fn start(core: &Core, chat_id: i64) -> Result<()> {
33: core.send("We are open\\. Probably\\. Visit [channel](https://t.me/rsstg_bot_help/3) for details\\.",
34: Some(chat_id), Some(ParseMode::MarkdownV2)).await?;
35: Ok(())
36: }
37:
e624ef9d66 2025-04-20 38: pub async fn list(core: &Core, sender: i64) -> Result<()> {
e624ef9d66 2025-04-20 39: core.send(core.list(sender).await?, Some(sender), Some(ParseMode::MarkdownV2)).await?;
40: Ok(())
41: }
42:
e624ef9d66 2025-04-20 43: pub async fn command(core: &Core, sender: i64, command: Vec<&str>) -> Result<()> {
44: if command.len() >= 2 {
45: let msg: Cow<str> = match &command[1].parse::<i32>() {
46: Err(err) => format!("I need a number.\n{}", &err).into(),
47: Ok(number) => match command[0] {
48: "/check" => core.check(number, sender, false).await
e624ef9d66 2025-04-20 49: .context("Channel check failed.")?,
e624ef9d66 2025-04-20 50: "/clean" => core.clean(number, sender).await?,
e624ef9d66 2025-04-20 51: "/enable" => core.enable(number, sender).await?.into(),
e624ef9d66 2025-04-20 52: "/delete" => core.delete(number, sender).await?,
e624ef9d66 2025-04-20 53: "/disable" => core.disable(number, sender).await?.into(),
54: _ => bail!("Command {} not handled.", &command[0]),
55: },
56: };
57: core.send(msg, Some(sender), None).await?;
58: } else {
59: core.send("This command needs a number.", Some(sender), None).await?;
60: }
61: Ok(())
62: }
63:
e624ef9d66 2025-04-20 64: pub async fn update(core: &Core, sender: i64, command: Vec<&str>) -> Result<()> {
65: let mut source_id: Option<i32> = None;
66: let at_least = "Requires at least 3 parameters.";
67: let mut i_command = command.iter();
68: let first_word = i_command.next().context(at_least)?;
69: match *first_word {
70: "/update" => {
71: let next_word = i_command.next().context(at_least)?;
72: source_id = Some(next_word.parse::<i32>()
73: .context(format!("I need a number, but got {next_word}."))?);
74: },
75: "/add" => {},
76: _ => bail!("Passing {first_word} is not possible here."),
77: };
78: let (channel, url, iv_hash, url_re) = (
79: i_command.next().context(at_least)?,
80: i_command.next().context(at_least)?,
81: i_command.next(),
82: i_command.next());
83: if ! RE_USERNAME.is_match(channel) {
84: bail!("Usernames should be something like \"@\\[a\\-zA\\-Z]\\[a\\-zA\\-Z0\\-9\\_]+\", aren't they?\nNot {channel:?}");
85: };
86: if ! RE_LINK.is_match(url) {
87: bail!("Link should be a link to atom/rss feed, something like \"https://domain/path\".\nNot {url:?}");
88: }
89: let iv_hash = match iv_hash {
90: Some(hash) => {
91: match *hash {
92: "-" => None,
93: thing => {
94: if ! RE_IV_HASH.is_match(thing) {
95: bail!("IV hash should be 14 hex digits.\nNot {thing:?}");
96: };
97: Some(thing)
98: },
99: }
100: },
101: None => None,
102: };
103: let url_re = match url_re {
104: Some(re) => {
105: match *re {
106: "-" => None,
107: thing => {
108: let _url_rex = ReplaceCommand::new(thing).context("Regexp parsing error:")?;
109: Some(thing)
110: }
111: }
112: },
113: None => None,
114: };
115: let chat_id = ChatId::String((*channel).into());
116: let channel_id = core.tg.get_chat(&GetChatParams { chat_id: chat_id.clone() }).await?.result.id;
117: let chan_adm = core.tg.get_chat_administrators(&GetChatAdministratorsParams { chat_id }).await
118: .context("Sorry, I have no access to that chat.")?.result;
119: let (mut me, mut user) = (false, false);
120: for admin in chan_adm {
121: let member_id = match admin {
122: ChatMember::Creator(member) => member.user.id,
123: ChatMember::Administrator(member) => member.user.id,
124: ChatMember::Left(_)
125: | ChatMember::Kicked(_)
126: | ChatMember::Member(_)
127: | ChatMember::Restricted(_) => continue,
128: } as i64;
129: if member_id == core.me.id as i64 {
130: me = true;
131: };
132: if member_id == sender {
133: user = true;
134: };
135: };
136: if ! me { bail!("I need to be admin on that channel."); };
137: if ! user { bail!("You should be admin on that channel."); };
e624ef9d66 2025-04-20 138: core.send(core.update(source_id, channel, channel_id, url, iv_hash, url_re, sender).await?, Some(sender), None).await?;
139: Ok(())
140: }