195 lines
6.7 KiB
Rust
195 lines
6.7 KiB
Rust
mod structs;
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use std::env;
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use std::io::{stdin, BufRead};
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use std::process::{exit, Command};
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use std::os::unix::process::CommandExt;
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use reqwest::Client;
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use quick_xml::Reader;
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use quick_xml::events::Event;
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extern crate tokio;
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fn main() {
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let view_image_command = ["xdg-open", "{}"];
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let nitter_instance = "https://nitter.nixnet.services";
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let twitter_accounts = [
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structs::TwitterAccount { display_name: "calli", twitter_username: "moricalliope", schedule_keyword: "schedule" },
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structs::TwitterAccount { display_name: "kiara", twitter_username: "takanashikiara", schedule_keyword: "schedule" },
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];
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let mut args = env::args();
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args.next();
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let mut preselect = String::new();
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for arg in args {
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preselect.push_str(&format!("{} ", arg));
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}
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let mut preselect = preselect.trim().to_lowercase();
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if preselect.is_empty() {
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let mut index = 0;
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for account in &twitter_accounts {
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eprintln!("{}. {}", index, &account.display_name);
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index += 1;
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}
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eprint!("> ");
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// https://www.programming-idioms.org/idiom/120/read-integer-from-stdin/1906/rust
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preselect = stdin()
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.lock()
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.lines()
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.next()
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.expect("stdin is not avaliable")
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.expect("can't read from stdin")
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.trim()
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.to_lowercase();
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}
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let mut account_index = 0;
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match preselect.parse::<usize>() {
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Ok(index) => {
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if twitter_accounts.len() > index {
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account_index = index;
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} else {
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eprintln!("Invalid index");
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exit(1);
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}
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},
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Err(_) => {
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let mut exhausted = true;
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for account in &twitter_accounts {
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if &account.display_name.to_lowercase() == &preselect {
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exhausted = false;
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break;
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}
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account_index += 1;
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}
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if exhausted {
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eprintln!("Cannot find account");
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exit(1);
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}
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}
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};
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let account = &twitter_accounts[account_index];
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let text = tokio::runtime::Builder::new_current_thread()
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.enable_all()
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.build()
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.unwrap()
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.block_on(get_feed_text(nitter_instance, &account));
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let mut is_inside_item = false;
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let mut is_inside_title = false;
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let mut is_inside_description = false;
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let mut title: Option<String> = None;
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let mut url: Option<String> = None;
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let mut reader = Reader::from_str(&text);
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let mut buf = Vec::new();
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loop {
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match reader.read_event(&mut buf) {
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Ok(Event::Start(ref e)) => {
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match e.name() {
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b"item" => {
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is_inside_item = true;
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title = None;
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url = None;
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},
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b"title" => is_inside_title = true,
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b"description" => is_inside_description = true,
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_ => ()
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};
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},
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Ok(Event::Text(e)) => {
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if is_inside_item && is_inside_title {
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title = Some(e.unescape_and_decode(&reader).unwrap());
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}
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},
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Ok(Event::CData(e)) => {
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if is_inside_item && is_inside_description {
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let description_text = e.unescape_and_decode(&reader).unwrap();
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let mut description_reader = Reader::from_str(&description_text);
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let mut description_buf = Vec::new();
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loop {
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match description_reader.read_event(&mut description_buf) {
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Ok(Event::Empty(ref e)) => {
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if e.name() == b"img" {
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url = Some(e.attributes()
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.find(|attribute| attribute.as_ref().unwrap().key == b"src")
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.unwrap()
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.unwrap()
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.unescape_and_decode_value(&description_reader)
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.unwrap());
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}
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},
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Err(err) => panic!("Error at position {}: {:?}", description_reader.buffer_position(), err),
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Ok(Event::Eof) => break,
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_ => ()
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}
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}
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}
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},
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Ok(Event::End(ref e)) => {
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match e.name() {
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b"item" => {
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is_inside_item = false;
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if title.is_some() && url.is_some() {
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break;
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}
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},
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b"description" => {
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is_inside_description = false;
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if title.is_some() && url.is_some() {
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break;
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}
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},
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b"title" => is_inside_title = false,
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_ => ()
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};
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},
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Err(err) => panic!("Error at position {}: {:?}", reader.buffer_position(), err),
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Ok(Event::Eof) => {
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if title.is_none() || url.is_none() {
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eprintln!("Cannot find tweet");
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exit(1);
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}
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break;
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},
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_ => ()
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};
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buf.clear();
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}
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drop(buf);
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println!("{}", title.unwrap());
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let mut args = view_image_command.to_vec().split_off(1);
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let url = url.unwrap();
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for i in 0..args.len() {
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if args[i] == "{}" {
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args[i] = url.as_str();
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}
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}
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Command::new(&view_image_command[0])
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.args(args)
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.exec();
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}
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async fn get_feed_text(nitter_instance: &str, account: &structs::TwitterAccount) -> String {
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let mut url = nitter_instance.to_string();
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url.push_str("/search/rss");
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match Client::new().get(&url)
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.query(&[
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("f", "tweets"),
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("f-images", "on"),
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("q", &format!("{} from:{}", &account.schedule_keyword, &account.twitter_username))
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])
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.send()
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.await {
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Ok(resp) => {
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match resp.text().await {
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Ok(text) => text,
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Err(err) => {
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eprintln!("Failed to get text due to {}", err);
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exit(1);
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}
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}
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},
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Err(err) => {
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eprintln!("Failed to connect to Nitter due to {}", err);
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exit(1);
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}
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}
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}
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