Changeset 0.24.0 (#156)

server/database/migrations/018_auth_abstraction.sql

@@ -0,0 +1,13 @@
+-- Chat Switchboard — 018 Auth Abstraction (v0.24.0)
+ALTER TABLE users
+    ADD COLUMN IF NOT EXISTS auth_source VARCHAR(20) NOT NULL DEFAULT 'builtin'
+        CHECK (auth_source IN ('builtin', 'mtls', 'oidc'));
+ALTER TABLE users ADD COLUMN IF NOT EXISTS external_id TEXT;
+ALTER TABLE users ADD COLUMN IF NOT EXISTS handle VARCHAR(100);
+ALTER TABLE users ALTER COLUMN password_hash DROP NOT NULL;
+UPDATE users SET handle = LOWER(REPLACE(REPLACE(username, ' ', '-'), '_', '-'))
+    WHERE handle IS NULL;
+ALTER TABLE users ALTER COLUMN handle SET NOT NULL;
+CREATE UNIQUE INDEX IF NOT EXISTS idx_users_handle ON users(LOWER(handle));
+CREATE UNIQUE INDEX IF NOT EXISTS idx_users_external_id
+    ON users(auth_source, external_id) WHERE external_id IS NOT NULL;