Show organization name after authenticating (#15823)

## Summary

Shows the name of the logged-in organization on success, rather than
repeating the URL.

crates/uv-auth/src/lib.rs

@@ -10,7 +10,9 @@ pub use credentials::{Credentials, Username};
 pub use index::{AuthPolicy, Index, Indexes};
 pub use keyring::KeyringProvider;
 pub use middleware::AuthMiddleware;
-pub use pyx::{DEFAULT_TOLERANCE_SECS, PyxOAuthTokens, PyxTokenStore, PyxTokens, TokenStoreError};
+pub use pyx::{
+    DEFAULT_TOLERANCE_SECS, PyxJwt, PyxOAuthTokens, PyxTokenStore, PyxTokens, TokenStoreError,
+};
 pub use realm::Realm;
 pub use service::{Service, ServiceParseError};
 pub use store::{AuthBackend, AuthScheme, TextCredentialStore, TomlCredentialError};

crates/uv-auth/src/pyx.rs

@@ -368,9 +368,9 @@ impl PyxTokenStore {
         tolerance_secs: u64,
     ) -> Result<PyxTokens, TokenStoreError> {
         // Decode the access token.
-        let jwt = Jwt::decode(match &tokens {
-            PyxTokens::OAuth(PyxOAuthTokens { access_token, .. }) => access_token.as_str(),
-            PyxTokens::ApiKey(PyxApiKeyTokens { access_token, .. }) => access_token.as_str(),
+        let jwt = PyxJwt::decode(match &tokens {
+            PyxTokens::OAuth(PyxOAuthTokens { access_token, .. }) => access_token,
+            PyxTokens::ApiKey(PyxApiKeyTokens { access_token, .. }) => access_token,
         })?;
 
         // If the access token is expired, refresh it.
@@ -503,14 +503,20 @@ impl TokenStoreError {
 
 /// The payload of the JWT.
 #[derive(Debug, serde::Deserialize)]
-struct Jwt {
-    exp: Option<i64>,
+pub struct PyxJwt {
+    /// The expiration time of the JWT, as a Unix timestamp.
+    pub exp: Option<i64>,
+    /// The issuer of the JWT.
+    pub iss: Option<String>,
+    /// The name of the organization, if any.
+    #[serde(rename = "urn:pyx:org_name")]
+    pub name: Option<String>,
 }
 
-impl Jwt {
+impl PyxJwt {
     /// Decode the JWT from the access token.
-    fn decode(access_token: &str) -> Result<Self, JwtError> {
-        let mut token_segments = access_token.splitn(3, '.');
+    pub fn decode(access_token: &AccessToken) -> Result<Self, JwtError> {
+        let mut token_segments = access_token.as_str().splitn(3, '.');
 
         let _header = token_segments.next().ok_or(JwtError::MissingHeader)?;
         let payload = token_segments.next().ok_or(JwtError::MissingPayload)?;

crates/uv/src/commands/auth/login.rs

@@ -7,8 +7,8 @@ use url::Url;
 use uuid::Uuid;
 
 use uv_auth::{
-    AccessToken, AuthBackend, Credentials, PyxOAuthTokens, PyxTokenStore, PyxTokens, Service,
-    TextCredentialStore,
+    AccessToken, AuthBackend, Credentials, PyxJwt, PyxOAuthTokens, PyxTokenStore, PyxTokens,
+    Service, TextCredentialStore,
 };
 use uv_client::{AuthIntegration, BaseClient, BaseClientBuilder};
 use uv_distribution_types::IndexUrl;
@@ -45,12 +45,19 @@ pub(crate) async fn login(
             .auth_integration(AuthIntegration::NoAuthMiddleware)
             .build();
 
-        pyx_login_with_browser(&pyx_store, &client, &printer).await?;
-        writeln!(
-            printer.stderr(),
-            "Logged in to {}",
-            pyx_store.api().bold().cyan()
-        )?;
+        let access_token = pyx_login_with_browser(&pyx_store, &client, &printer).await?;
+        let jwt = PyxJwt::decode(&access_token)?;
+
+        if let Some(name) = jwt.name.as_deref() {
+            writeln!(printer.stderr(), "Logged in to {}", name.bold().cyan())?;
+        } else {
+            writeln!(
+                printer.stderr(),
+                "Logged in to {}",
+                pyx_store.api().bold().cyan()
+            )?;
+        }
+
         return Ok(ExitStatus::Success);
     }