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https://github.com/OMGeeky/yup-oauth2.git
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Update Authenticator to accept clients with custom connectors, rather than depending on the sealed hyper::client::connect::Connect trait, as recommended by hyper: https://docs.rs/hyper/0.13.8/src/hyper/client/connect/mod.rs.html#256-258 Closes #177.
78 lines
2.8 KiB
Rust
78 lines
2.8 KiB
Rust
//! This module provides a token source (`GetToken`) that obtains tokens using user credentials
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//! for use by software (i.e., non-human actors) to get access to Google services.
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//!
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//! Resources:
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//! - [gcloud auth application-default login](https://cloud.google.com/sdk/gcloud/reference/auth/application-default/login)
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//!
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use crate::error::Error;
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use crate::types::TokenInfo;
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use hyper::client::connect::Connection;
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use hyper::header;
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use http::Uri;
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use serde::{Deserialize, Serialize};
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use std::error::Error as StdError;
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use tokio::io::{AsyncRead, AsyncWrite};
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use tower_service::Service;
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use url::form_urlencoded;
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const TOKEN_URI: &str = "https://accounts.google.com/o/oauth2/token";
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/// JSON schema of authorized user secret. You can obtain it by
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/// running on the client: `gcloud auth application-default login`.
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///
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/// You can use `helpers::read_authorized_user_secret()` to read a JSON file
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/// into a `AuthorizedUserSecret`.
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#[derive(Serialize, Deserialize, Debug, Clone)]
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pub struct AuthorizedUserSecret {
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/// client_id
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pub client_id: String,
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/// client_secret
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pub client_secret: String,
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/// refresh_token
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pub refresh_token: String,
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#[serde(rename = "type")]
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/// key_type
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pub key_type: String,
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}
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/// AuthorizedUserFlow can fetch oauth tokens using an authorized user secret.
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pub struct AuthorizedUserFlow {
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pub(crate) secret: AuthorizedUserSecret,
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}
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impl AuthorizedUserFlow {
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/// Send a request for a new Bearer token to the OAuth provider.
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pub(crate) async fn token<S, T>(
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&self,
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hyper_client: &hyper::Client<S>,
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_scopes: &[T],
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) -> Result<TokenInfo, Error>
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where
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T: AsRef<str>,
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S: Service<Uri> + Clone + Send + Sync + 'static,
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S::Response: Connection + AsyncRead + AsyncWrite + Send + Unpin + 'static,
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S::Future: Send + Unpin + 'static,
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S::Error: Into<Box<dyn StdError + Send + Sync>>,
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{
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let req = form_urlencoded::Serializer::new(String::new())
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.extend_pairs(&[
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("client_id", self.secret.client_id.as_str()),
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("client_secret", self.secret.client_secret.as_str()),
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("refresh_token", self.secret.refresh_token.as_str()),
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("grant_type", "refresh_token"),
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])
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.finish();
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let request = hyper::Request::post(TOKEN_URI)
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.header(header::CONTENT_TYPE, "application/x-www-form-urlencoded")
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.body(hyper::Body::from(req))
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.unwrap();
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log::debug!("requesting token from authorized user: {:?}", request);
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let (head, body) = hyper_client.request(request).await?.into_parts();
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let body = hyper::body::to_bytes(body).await?;
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log::debug!("received response; head: {:?}, body: {:?}", head, body);
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TokenInfo::from_json(&body)
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}
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}
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