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use lazy_static::lazy_static; use regex::Regex; use reqwest::{header, Client}; use std::error::Error; use std::fmt; use std::path::PathBuf; const RESTART_MSG: &str = "Restart tastyworks and check that you are logged in."; lazy_static! { static ref CLIENT: Client = Client::builder() .user_agent( "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:79.0) \ Gecko/20100101 Firefox/79.0" ) .build() .unwrap(); } thread_local! { static API_TOKEN: std::cell::RefCell<Option<String>> = std::cell::RefCell::new(None); } pub async fn request( url_path: &str, params_string: &str, ) -> Result<reqwest::Response, Box<dyn Error>> { let mut api_token_header_value = None; let mut error: Option<Box<dyn Error>> = None; API_TOKEN.with(|t| { if t.borrow().is_none() { lazy_static! { static ref RE: Regex = Regex::new(r#""sessionId"\s*:\s*"([^"]+)"#).unwrap(); } let mut path = dirs::data_local_dir().expect("Undefined config directory"); path.push("tastyworks/desktop/preferences_user.json"); let json = std::fs::read_to_string(&path); match json { Ok(json) => { if let Some(m) = RE.captures(&json).and_then(|caps| caps.get(1)) { t.replace(Some(m.as_str().to_string())); } else { error = Some(TokenParseError.into()); } } Err(_) => { error = Some(IOError { path }.into()); } } }; if let Some(t) = &*t.borrow() { let mut value = header::HeaderValue::from_str(&t).unwrap(); value.set_sensitive(true); api_token_header_value = Some(value); } }); if let Some(error) = error { return Err(error); } let params_string = if params_string.is_empty() { params_string.to_string() } else { format!("?{}", params_string) }; let base_url = format!("https://api.tastyworks.com/{}", url_path); let url = format!("{}{}", base_url, params_string); let response = CLIENT .get(&url) .header(header::AUTHORIZATION, api_token_header_value.unwrap()) .send() .await?; if response.status() != 200 { return Err(UnauthorizedRequestError { status: response.status(), url, } .into()); } Ok(response) } #[derive(Debug)] struct TokenParseError; impl Error for TokenParseError {} impl fmt::Display for TokenParseError { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "API token could not be found. {}", RESTART_MSG) } } #[derive(Debug)] struct IOError { path: PathBuf, } impl Error for IOError {} impl fmt::Display for IOError { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "Error reading file: {}", self.path.display()) } } #[derive(Debug)] struct UnauthorizedRequestError { status: reqwest::StatusCode, url: String, } impl Error for UnauthorizedRequestError {} impl fmt::Display for UnauthorizedRequestError { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!( f, "Failed response ({}) to request: {}. {}", self.status, self.url, RESTART_MSG ) } }