GET /api/snapshots/{id}/alerts fetches open code scanning alerts
(located at the flagged file and line) and open Dependabot alerts
(located at the vulnerable manifest) for the snapshot's repository,
using the viewer's own GitHub token, in parallel and following Link
pagination only while it stays on the API host. Severities are
normalised to critical/high/medium/low. Each set reports ok, forbidden
(permission not granted or feature disabled) or unavailable; signed-out
viewers and local folders get a reason instead. Snapshots now remember
their GitHub repository URL.
The context was cancelled before its error was checked, so any failure
looked like a timeout and private repositories never offered sign-in.
Clone handling moves into cloneRepo, which checks for DeadlineExceeded
specifically, with tests for success, failure with token masking, and
timeout.
/api/github/login redirects to GitHub with a single-use state bound to
the session; the callback exchanges the code for a user token kept in
memory and expired with it. Clones pass the token through git config
in the environment, never the URL or arguments, and ignore host git
config and credential helpers. Failed clones report authRequired
(signin or install) so the frontend can offer the right next step.
Configured with GITHUB_CLIENT_ID, GITHUB_CLIENT_SECRET, GITHUB_APP_SLUG.
Andy Dixon