support github login

src/login.rs

@@ -69,7 +69,20 @@ struct Account {
     pub id: String,
 }
 #[get("/cs/auth?<code>&<redirect_url>&<jump_to_url>")]
-pub async fn cs_auth(code: String, redirect_url: String, jump_to_url: String, db: Db) -> Redirect {
+pub async fn cs_auth(
+    code: String,
+    redirect_url: String,
+    jump_to_url: String,
+    db: Db,
+) -> Result<Redirect, &'static str> {
+    if !env::var("FRONTEND_WHITELIST")
+        .unwrap_or_default()
+        .split(',')
+        .any(|url| jump_to_url.starts_with(url))
+    {
+        return Err("前端地址不在白名单内");
+    }
+
     let mast_url = env::var("MAST_BASE_URL").unwrap();
     let mast_cli = env::var("MAST_CLIENT").unwrap();
     let mast_sec = env::var("MAST_SECRET").unwrap();
@@ -121,19 +134,109 @@ pub async fn cs_auth(code: String, redirect_url: String, jump_to_url: String, db
         .await
         .unwrap();
 
-    Redirect::to(format!(
-        "{}?token={}",
-        {
-            if env::var("FRONTEND_WHITELIST")
+    Ok(Redirect::to(format!("{}?token={}", &jump_to_url, &tk)))
+}
+
+#[get("/gh")]
+pub fn gh_login(r: RefHeader) -> Redirect {
+    let gh_url = "https://github.com/login/oauth/authorize";
+    let gh_cli = env::var("GH_CLIENT").unwrap();
+    let gh_scope = "user:email";
+
+    let jump_to_url = Url::parse(&r.0).unwrap();
+
+    let mut redirect_url = env::var("AUTH_BACKEND_URL")
+        .map(|url| Url::parse(&url).unwrap())
+        .unwrap_or_else(|_| jump_to_url.clone());
+    redirect_url.set_path("/_login/gh/auth");
+
+    redirect_url = Url::parse_with_params(
+        redirect_url.as_str(),
+        &[("jump_to_url", jump_to_url.as_str())],
+    )
+    .unwrap();
+
+    let url = Url::parse_with_params(
+        gh_url,
+        &[
+            ("redirect_uri", redirect_url.as_str()),
+            ("client_id", &gh_cli),
+            ("scope", gh_scope),
+        ],
+    )
+    .unwrap();
+
+    Redirect::to(url.to_string())
+}
+
+#[derive(Deserialize, Debug)]
+#[serde(crate = "rocket::serde")]
+struct GithubEmail {
+    pub email: String,
+    pub verified: bool,
+}
+
+#[get("/gh/auth?<code>&<jump_to_url>")]
+pub async fn gh_auth(code: String, jump_to_url: String, db: Db) -> Result<Redirect, &'static str> {
+    if !env::var("FRONTEND_WHITELIST")
         .unwrap_or_default()
         .split(',')
         .any(|url| jump_to_url.starts_with(url))
     {
-                &jump_to_url
-            } else {
-                "/"
+        return Err("前端地址不在白名单内");
     }
-        },
-        &tk
-    ))
+
+    let gh_cli = env::var("GH_CLIENT").unwrap();
+    let gh_sec = env::var("GH_SECRET").unwrap();
+
+    let client = reqwest::Client::new();
+    let r = client
+        .post("https://github.com/login/oauth/access_token")
+        .header(reqwest::header::ACCEPT, "application/json")
+        .form(&[
+            ("client_id", gh_cli.as_str()),
+            ("client_secret", gh_sec.as_str()),
+            ("code", code.as_str()),
+        ])
+        .send()
+        .await
+        .unwrap();
+
+    //let token: rocket::serde::json::Value = r.json().await.unwrap();
+    let token: Token = r.json().await.unwrap();
+
+    dbg!(&token);
+
+    let client = reqwest::Client::new();
+    let r = client
+        .get("https://api.github.com/user/emails")
+        .bearer_auth(token.access_token)
+        .header(reqwest::header::USER_AGENT, "hole_thu LoginBot")
+        .send()
+        .await
+        .unwrap();
+    // dbg!(&r);
+    let emails = r
+        .json::<Vec<GithubEmail>>()
+        //.json::<rocket::serde::json::Value>()
+        .await
+        .unwrap();
+
+    //dbg!(&emails);
+
+    for email in emails {
+        if let Some(email_name) = email
+            .email
+            .strip_suffix("@mails.tsinghua.edu.cn")
+            .and_then(|name| email.verified.then_some(name))
+        {
+            let tk = User::find_or_create_token(&db, &format!("gh_{}", email_name), false)
+                .await
+                .unwrap();
+
+            return Ok(Redirect::to(format!("{}?token={}", &jump_to_url, &tk)));
+        }
+    }
+
+    Err("没有找到已验证的清华邮箱")
 }

src/main.rs

@@ -99,7 +99,12 @@ async fn main() {
             "/_login",
             [
                 #[cfg(feature = "mastlogin")]
-                routes![login::cs_login, login::cs_auth],
+                routes![
+                    login::cs_login,
+                    login::cs_auth,
+                    login::gh_login,
+                    login::gh_auth
+                ],
                 routes![],
             ]
             .concat(),