link-assistant-router 1.2.1

Link.Assistant.Router — Claude MAX OAuth proxy and token gateway for Anthropic APIs
Documentation 
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use super::*;
use crate::credential_store::CredentialStore as _;

#[test]
fn adopted_file_is_one_refresh_chain_for_vendor_and_router() {
    let source_home = tempfile::tempdir().expect("vendor home");
    let router_home = tempfile::tempdir().expect("Router home");
    let source = source_home.path().join("auth.json");
    std::fs::write(
        &source,
        r#"{"auth_mode":"chatgpt","tokens":{"id_token":"kept","access_token":"old-access","refresh_token":"old-refresh"}}"#,
    )
    .expect("vendor credential");
    let pointer = reference_external_credential(&source, "transaction-1").expect("reference");
    let reader = SubscriptionReader::new(SubscriptionProvider::Codex, router_home.path());
    let router_path = reader
        .install_document(&pointer)
        .expect("install reference");

    let (loaded, origin) = reader.read_token_from().expect("read adopted credential");
    assert_eq!(origin, crate::platform_keychain::Origin::AdoptedFile);
    assert_eq!(loaded.refresh_token.as_deref(), Some("old-refresh"));
    reader
        .prepare_refresh(&loaded)
        .expect("shared file is writable");

    let successor = SubscriptionToken {
        access_token: "new-access".into(),
        refresh_token: Some("new-refresh".into()),
        expires_at_ms: Some(9_999_999_999_999),
        account_id: None,
        resource_url: None,
    };
    reader.persist(&successor).expect("advance shared chain");

    let vendor_document = std::fs::read_to_string(&source).expect("vendor document");
    assert!(vendor_document.contains("new-access"));
    assert!(vendor_document.contains("new-refresh"));
    assert!(vendor_document.contains("\"id_token\": \"kept\""));
    let router_document = std::fs::read_to_string(router_path).expect("Router reference");
    assert!(has_promotion_receipt(&router_document, "transaction-1"));
    assert!(!router_document.contains("old-access"));
    assert!(!router_document.contains("new-access"));

    let restarted = SubscriptionReader::new(SubscriptionProvider::Codex, router_home.path());
    let restarted = restarted.read_token().expect("restart reads shared chain");
    assert_eq!(restarted.access_token, successor.access_token);
    assert_eq!(restarted.refresh_token, successor.refresh_token);
}

#[test]
fn adopted_reference_rejects_relative_and_nested_sources() {
    let home = tempfile::tempdir().expect("Router home");
    let path = home.path().join("auth.json");
    let relative = serde_json::json!({
        "_link_assistant_router": {
            "credential_source": "../vendor/auth.json",
            "promotion_receipt": "transaction-1"
        }
    });
    std::fs::write(&path, relative.to_string()).expect("relative reference");
    let reader = SubscriptionReader::new(SubscriptionProvider::Codex, home.path());
    assert!(reader.read_token().is_err());

    let source = home.path().join("source.json");
    std::fs::write(&source, relative.to_string()).expect("nested reference");
    let pointer = reference_external_credential(&source, "transaction-2").expect("reference");
    std::fs::write(&path, pointer).expect("nested pointer");
    assert!(reader.read_token().is_err());
}