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|
use std::str::FromStr;
use anyhow::{bail, Context};
use log::error;
use rand::distributions::Alphanumeric;
use rand::{thread_rng, Rng};
use reqwest::header;
use serde::{Deserialize, Serialize};
use url::Url;
use crate::{
OauthProvider, OauthProviderName, OauthValidation, SecdError, ValidationRequestId,
INTERNAL_ERR_MSG,
};
pub(crate) fn log_err(e: Box<dyn std::error::Error>, new_e: SecdError) -> SecdError {
error!("{:?}", e);
new_e
}
pub(crate) fn to_secd_err(e: anyhow::Error, new_e: SecdError) -> SecdError {
error!("{:?}", e);
new_e
}
pub(crate) fn log_err_sqlx(e: sqlx::Error) -> sqlx::Error {
error!("{:?}", e);
e
}
pub(crate) fn generate_random_url_safe(n: usize) -> String {
thread_rng()
.sample_iter(&Alphanumeric)
.take(n)
.map(char::from)
.collect()
}
pub(crate) fn remove_trailing_slash(url: &mut Url) -> String {
let mut u = url.to_string();
if u.ends_with('/') {
u.pop();
}
u
}
pub(crate) fn build_oauth_auth_url(
p: &OauthProvider,
validation_id: ValidationRequestId,
) -> Result<Url, SecdError> {
let redirect_url = remove_trailing_slash(&mut p.redirect_url.clone());
Ok(Url::from_str(&format!(
"{}?client_id={}&response_type={}&redirect_uri={}&scope={}&state={}",
p.base_url,
p.client_id,
p.response.to_string().to_lowercase(),
redirect_url,
p.default_scope,
validation_id.to_string()
))
.map_err(|_| SecdError::InternalError(INTERNAL_ERR_MSG.into()))?)
}
pub(crate) async fn get_oauth_identity_data(
validation: &OauthValidation,
) -> anyhow::Result<OauthAccessIdentity> {
let provider = validation.oauth_provider.name;
let token = validation
.access_token
.clone()
.ok_or(SecdError::InternalError(
"no access token provided with which to build oauth data url".into(),
))?;
let url = Url::from_str(&format!(
"{}{}",
match provider {
OauthProviderName::Google =>
"https://www.googleapis.com/oauth2/v2/userinfo?access_token=",
_ => unimplemented!(),
},
token
))?;
let resp = reqwest::get(url).await?.json::<serde_json::Value>().await?;
let identity = match provider {
OauthProviderName::Google => OauthAccessIdentity {
email: resp
.get("email")
.and_then(|v| v.as_str().map(|s| s.to_string())),
email_is_verified: resp.get("verified_email").and_then(|v| v.as_bool()),
picture_url: resp
.get("picture")
.and_then(|v| Url::from_str(&v.to_string()).ok()),
},
_ => unimplemented!(),
};
Ok(identity)
}
#[derive(Debug, Serialize)]
pub(crate) struct OauthAccessTokenGoogleRequest {
grant_type: String,
code: String,
client_id: String,
client_secret: String,
redirect_uri: String,
}
#[derive(Debug, Deserialize)]
pub(crate) struct OauthAccessTokenGoogleResponse {
access_token: String,
expires_in: i32,
token_type: String,
scope: String,
id_token: String,
}
#[derive(Debug)]
pub(crate) struct OauthAccessIdentity {
pub(crate) email: Option<String>,
pub(crate) email_is_verified: Option<bool>,
pub(crate) picture_url: Option<Url>,
}
type AccessTokenRequestData = String;
pub(crate) async fn get_oauth_access_token(
validation: &OauthValidation,
secret_code: &String,
) -> anyhow::Result<String> {
let provider = validation.oauth_provider.name;
let url = Url::from_str(match provider {
OauthProviderName::Google => "https://accounts.google.com/o/oauth2/token",
_ => unimplemented!(),
})?;
let request_data = serde_json::to_string(&match provider {
OauthProviderName::Google => OauthAccessTokenGoogleRequest {
grant_type: "authorization_code".to_string(),
code: secret_code.to_string(),
client_id: validation.oauth_provider.client_id.clone(),
client_secret: validation.oauth_provider.client_secret.clone(),
redirect_uri: remove_trailing_slash(
&mut validation.oauth_provider.redirect_url.clone(),
),
},
_ => unimplemented!(),
})?;
let r = reqwest::Client::new()
.post(url)
.body(request_data)
.header(header::CONTENT_TYPE, "application/json")
.send()
.await
.context(format!(
"Failed to successfully POST a new access token for: {}",
provider
))?;
let access_token = match provider {
OauthProviderName::Google => {
let resp: OauthAccessTokenGoogleResponse = r.json().await.context(format!(
"Failed to parse access token response for: {}",
provider
))?;
resp.access_token
}
_ => unimplemented!(),
};
Ok(access_token)
}
|
