api/__init__.py

@@ -223,4 +223,25 @@ def update_last_used(api_key):
         session.query(APIKey).filter_by(key=api_key.key).update(
             {APIKey.last_used_at: datetime.now(UTC)}
         )
-        session.commit()
+        session.commit()
+
+
+def get_actor():
+    """Identity string to record as author/last_modified_by.
+
+    - X-API-Key request -> the key's alias
+    - Keycloak Bearer request -> the literal 'admin' (the backend does not
+      track individual KC identities)
+    - otherwise -> None
+    Call only from endpoints already behind @require_auth.
+    """
+    api_key_header = request.headers.get('X-API-Key')
+    if api_key_header:
+        api_key = get_api_key(api_key_header)
+        if api_key:
+            return api_key.alias
+        return None
+    auth_header = request.headers.get('Authorization')
+    if auth_header and auth_header.startswith('Bearer'):
+        return 'admin'
+    return None

api/apikey/__init__.py

@@ -1,3 +1,4 @@
+from datetime import datetime, timedelta, UTC
 from flask import Blueprint, request, jsonify
 from api import generate_api_key
 from db import get_db
@@ -10,13 +11,31 @@ api_key_bp = Blueprint('apikey', __name__, url_prefix='/api/apikey')
 # product defines, regardless of what the request body asks for.
 ALLOWED_API_KEY_ROLES = {'admin', 'creator', 'user'}
 
+# Validity window applied on create and on every renewal.
+KEY_TTL = timedelta(days=15)
+
 @api_key_bp.route('/', methods=['POST'])
 @require_auth(roles=['admin'])
 def create_key():
-    data = request.get_json(silent=True)
+    """Create an API key, or renew an existing one.
 
-    if not data or 'name' not in data:
+    `alias` is required and unique. Creating with an alias that already
+    exists is treated as a RENEWAL of that key: the same key string is
+    kept (so existing integrations keep working), its validity window is
+    reset, it is reactivated, and name/roles are updated. The (unchanged)
+    key string is returned again.
+    """
+    data = request.get_json(silent=True)
+    if not data:
+        return jsonify({"error": "invalid or missing JSON body"}), 400
+
+    alias = data.get('alias')
+    name = data.get('name')
+    if not alias or not str(alias).strip():
+        return jsonify({"error": "alias is required"}), 400
+    if not name:
         return jsonify({"error": "Name is required"}), 400
+    alias = str(alias).strip()
 
     roles = data.get('roles', [])
     if not isinstance(roles, list) or any(r not in ALLOWED_API_KEY_ROLES for r in roles):
@@ -24,10 +43,29 @@ def create_key():
 
     try:
         with get_db() as session:
-            apikey = APIKey(key=generate_api_key(), name=data['name'], roles=roles)
+            existing = session.query(APIKey).filter_by(alias=alias).first()
+            if existing is not None:
+                # Renewal: keep the key string, reset validity, reactivate.
+                existing.name = name
+                existing.roles = roles
+                existing.is_active = True
+                existing.expire = datetime.now(UTC) + KEY_TTL
+                session.commit()
+                result = existing.to_dict()
+                result['renewed'] = True
+                return jsonify(result), 200
+
+            apikey = APIKey(
+                key=generate_api_key(),
+                alias=alias,
+                name=name,
+                roles=roles,
+                expire=datetime.now(UTC) + KEY_TTL,
+            )
             session.add(apikey)
             session.commit()
             result = apikey.to_dict()
+            result['renewed'] = False
         return jsonify(result), 201
     except Exception as e:
         return jsonify({"error": str(e)}), 500

api/markdown.py

@@ -1,8 +1,9 @@
 from flask import Blueprint, request, jsonify
 from sqlalchemy import or_
 from api import limiter
-from api import require_auth, etag_response, verify_token, is_user_admin
+from api import require_auth, etag_response, verify_token, is_user_admin, get_actor
 from contexts.RequestContext import RequestContext
+from datetime import datetime, UTC
 from db import get_db
 from db.models.Markdown import Markdown
 from db.models.MarkdownSetting import MarkdownSetting
@@ -225,7 +226,13 @@ def create_markdown():
     setting_id = data.get('setting_id', None)
     if not title or not content:
         return jsonify({"error": "missing required fields"}), 400
-    new_markdown = Markdown(title=title, content=content, path_id=path_id, shortcut=shortcut, setting_id=setting_id)
+    actor = get_actor()
+    now = datetime.now(UTC)
+    new_markdown = Markdown(
+        title=title, content=content, path_id=path_id, shortcut=shortcut,
+        setting_id=setting_id, author=actor, last_modified_by=actor,
+        created_at=now, updated_at=now,
+    )
     with get_db() as session:
         try:
             if shortcut != "":
@@ -301,6 +308,8 @@ def update_markdown(markdown_id):
                 markdown.shortcut = data.get('shortcut')
             if 'setting_id' in data:
                 markdown.setting_id = data.get('setting_id')
+        markdown.updated_at = datetime.now(UTC)
+        markdown.last_modified_by = get_actor()
         session.commit()
         markdown_updated.send(None, payload=markdown.to_dict())
         return jsonify(markdown.to_dict()), 200

api/patch.py

@@ -1,5 +1,6 @@
+from datetime import datetime, UTC
 from flask import Blueprint, request, jsonify
-from api import limiter, require_auth, is_user_admin
+from api import limiter, require_auth, is_user_admin, get_actor
 from contexts.RequestContext import RequestContext
 from db import get_db
 from db.models.Markdown import Markdown
@@ -65,11 +66,17 @@ def create_patch():
         if session.query(Markdown).get(markdown_id) is None:
             return jsonify({"error": "markdown not found"}), 404
         try:
+            actor = get_actor()
+            now = datetime.now(UTC)
             patch = MarkdownPatch(
                 markdown_id=markdown_id,
                 title=data.get('title'),
                 content=content,
                 order=data.get('order', 0),
+                author=actor,
+                last_modified_by=actor,
+                created_at=now,
+                updated_at=now,
             )
             session.add(patch)
             session.commit()
@@ -104,6 +111,8 @@ def update_patch(patch_id):
                 patch.content = data.get('content')
             if 'order' in data:
                 patch.order = data.get('order')
+        patch.updated_at = datetime.now(UTC)
+        patch.last_modified_by = get_actor()
         session.commit()
         return jsonify(patch.to_dict()), 200
 

db/__init__.py

@@ -59,12 +59,71 @@ def init_payload():
         session.commit()
 
 
+def _column_exists(conn, table, column):
+    row = conn.execute(text(
+        "SELECT 1 FROM information_schema.columns "
+        "WHERE table_schema = :db AND table_name = :t AND column_name = :c"
+    ), {"db": DB_NAME, "t": table, "c": column}).first()
+    return row is not None
+
+
+def _index_exists(conn, table, index):
+    row = conn.execute(text(
+        "SELECT 1 FROM information_schema.statistics "
+        "WHERE table_schema = :db AND table_name = :t AND index_name = :i"
+    ), {"db": DB_NAME, "t": table, "i": index}).first()
+    return row is not None
+
+
+def run_migrations():
+    """Idempotent additive schema migrations for already-existing tables.
+
+    create_all() creates missing tables (with the new columns) for a fresh
+    DB, but never alters existing ones. This adds the new columns to legacy
+    tables and backfills sensible defaults. Safe to run on every startup.
+    """
+    # (table, column, DDL, backfill SQL or None)
+    steps = [
+        ("apikey", "alias", "ALTER TABLE apikey ADD COLUMN alias VARCHAR(255) NULL",
+         "UPDATE apikey SET alias = `key` WHERE alias IS NULL"),
+        ("markdown", "updated_at", "ALTER TABLE markdown ADD COLUMN updated_at DATETIME NULL",
+         "UPDATE markdown SET updated_at = created_at WHERE updated_at IS NULL"),
+        ("markdown", "author", "ALTER TABLE markdown ADD COLUMN author VARCHAR(255) NULL",
+         "UPDATE markdown SET author = 'admin' WHERE author IS NULL"),
+        ("markdown", "last_modified_by", "ALTER TABLE markdown ADD COLUMN last_modified_by VARCHAR(255) NULL",
+         "UPDATE markdown SET last_modified_by = 'admin' WHERE last_modified_by IS NULL"),
+        ("markdown_patch", "author", "ALTER TABLE markdown_patch ADD COLUMN author VARCHAR(255) NULL",
+         "UPDATE markdown_patch SET author = 'admin' WHERE author IS NULL"),
+        ("markdown_patch", "last_modified_by", "ALTER TABLE markdown_patch ADD COLUMN last_modified_by VARCHAR(255) NULL",
+         "UPDATE markdown_patch SET last_modified_by = 'admin' WHERE last_modified_by IS NULL"),
+    ]
+    try:
+        with engine.begin() as conn:
+            for table, column, ddl, backfill in steps:
+                if not _column_exists(conn, table, column):
+                    conn.execute(text(ddl))
+                    if backfill:
+                        conn.execute(text(backfill))
+                    print(f"[ x ] migrated {table}.{column}")
+            # Unique constraint on apikey.alias once it is populated.
+            if not _index_exists(conn, "apikey", "uq_apikey_alias"):
+                conn.execute(text(
+                    "ALTER TABLE apikey ADD CONSTRAINT uq_apikey_alias UNIQUE (alias)"
+                ))
+                print("[ x ] migrated apikey.alias unique constraint")
+    except Exception as e:
+        # Don't block startup on a migration hiccup; surface loudly.
+        print(f"[ ! ] run_migrations error (continuing): {e}")
+
+
 def setup_db():
     if DB_SCHEMA_UPDATED:
         clear_db()
         print("[ x ] db cleared")
     create_all()
     print("[ x ] db created")
+    run_migrations()
+    print("[ x ] db migrations applied")
     run_scripts()
     print("[ x ] db scripts executed")
     init_payload()

db/migrations/2026-05-16_apikey_alias_authorship.sql

@@ -0,0 +1,79 @@
+-- ============================================================================
+-- Production migration: apikey.alias (unique) + markdown/patch authorship
+-- ============================================================================
+-- Idempotent. Safe to run multiple times. Target: MySQL 8 (no native
+-- ADD COLUMN IF NOT EXISTS, so columns are guarded via information_schema
+-- + a prepared statement). Mirrors the app's db.run_migrations(); running
+-- both is harmless.
+--
+-- Apply against the application schema, e.g.:
+--   docker exec -i mysql sh -c 'mysql -uroot -p"$MYSQL_ROOT_PASSWORD" hangmanlab' \
+--       < 2026-05-16_apikey_alias_authorship.sql
+-- ============================================================================
+
+SET @schema := DATABASE();
+
+-- ---- helper macro is not available in plain SQL; repeat the guarded block --
+
+-- apikey.alias --------------------------------------------------------------
+SET @c := (SELECT COUNT(*) FROM information_schema.columns
+           WHERE table_schema=@schema AND table_name='apikey' AND column_name='alias');
+SET @ddl := IF(@c=0,
+    'ALTER TABLE apikey ADD COLUMN alias VARCHAR(255) NULL',
+    'DO 0');
+PREPARE st FROM @ddl; EXECUTE st; DEALLOCATE PREPARE st;
+-- backfill: existing keys get alias = their (unique) key string
+UPDATE apikey SET alias = `key` WHERE alias IS NULL;
+
+-- apikey unique constraint on alias -----------------------------------------
+SET @i := (SELECT COUNT(*) FROM information_schema.statistics
+           WHERE table_schema=@schema AND table_name='apikey' AND index_name='uq_apikey_alias');
+SET @ddl := IF(@i=0,
+    'ALTER TABLE apikey ADD CONSTRAINT uq_apikey_alias UNIQUE (alias)',
+    'DO 0');
+PREPARE st FROM @ddl; EXECUTE st; DEALLOCATE PREPARE st;
+
+-- markdown.updated_at -------------------------------------------------------
+SET @c := (SELECT COUNT(*) FROM information_schema.columns
+           WHERE table_schema=@schema AND table_name='markdown' AND column_name='updated_at');
+SET @ddl := IF(@c=0,
+    'ALTER TABLE markdown ADD COLUMN updated_at DATETIME NULL',
+    'DO 0');
+PREPARE st FROM @ddl; EXECUTE st; DEALLOCATE PREPARE st;
+UPDATE markdown SET updated_at = created_at WHERE updated_at IS NULL;
+
+-- markdown.author -----------------------------------------------------------
+SET @c := (SELECT COUNT(*) FROM information_schema.columns
+           WHERE table_schema=@schema AND table_name='markdown' AND column_name='author');
+SET @ddl := IF(@c=0,
+    'ALTER TABLE markdown ADD COLUMN author VARCHAR(255) NULL',
+    'DO 0');
+PREPARE st FROM @ddl; EXECUTE st; DEALLOCATE PREPARE st;
+UPDATE markdown SET author = 'admin' WHERE author IS NULL;
+
+-- markdown.last_modified_by -------------------------------------------------
+SET @c := (SELECT COUNT(*) FROM information_schema.columns
+           WHERE table_schema=@schema AND table_name='markdown' AND column_name='last_modified_by');
+SET @ddl := IF(@c=0,
+    'ALTER TABLE markdown ADD COLUMN last_modified_by VARCHAR(255) NULL',
+    'DO 0');
+PREPARE st FROM @ddl; EXECUTE st; DEALLOCATE PREPARE st;
+UPDATE markdown SET last_modified_by = 'admin' WHERE last_modified_by IS NULL;
+
+-- markdown_patch.author -----------------------------------------------------
+SET @c := (SELECT COUNT(*) FROM information_schema.columns
+           WHERE table_schema=@schema AND table_name='markdown_patch' AND column_name='author');
+SET @ddl := IF(@c=0,
+    'ALTER TABLE markdown_patch ADD COLUMN author VARCHAR(255) NULL',
+    'DO 0');
+PREPARE st FROM @ddl; EXECUTE st; DEALLOCATE PREPARE st;
+UPDATE markdown_patch SET author = 'admin' WHERE author IS NULL;
+
+-- markdown_patch.last_modified_by -------------------------------------------
+SET @c := (SELECT COUNT(*) FROM information_schema.columns
+           WHERE table_schema=@schema AND table_name='markdown_patch' AND column_name='last_modified_by');
+SET @ddl := IF(@c=0,
+    'ALTER TABLE markdown_patch ADD COLUMN last_modified_by VARCHAR(255) NULL',
+    'DO 0');
+PREPARE st FROM @ddl; EXECUTE st; DEALLOCATE PREPARE st;
+UPDATE markdown_patch SET last_modified_by = 'admin' WHERE last_modified_by IS NULL;

db/models/APIKey.py

@@ -6,6 +6,9 @@ class APIKey(Base):
     __tablename__ = 'apikey'
 
     key = Column(String(64), primary_key=True)
+    # Stable human identity of the key. Unique; creating with an existing
+    # alias is treated as a renewal of that key (see api/apikey).
+    alias = Column(String(255), nullable=False, unique=True)
     name = Column(String(255), nullable=False)
     created_at = Column(DateTime, nullable=False, default=lambda: datetime.now(UTC))
     last_used_at = Column(DateTime)
@@ -16,6 +19,7 @@ class APIKey(Base):
     def to_dict(self):
         return {
             "key": self.key,
+            "alias": self.alias,
             "name": self.name,
             "created_at": self.created_at.isoformat() if self.created_at else None,
             "last_used_at": self.last_used_at.isoformat() if self.last_used_at else None,

db/models/Markdown.py

@@ -9,7 +9,15 @@ class Markdown(Base):
     id = Column(Integer, primary_key=True)
     title = Column(String(255), nullable=False)
     content = Column(Text, nullable=False)
-    created_at = Column(DateTime, default=datetime.datetime.now(datetime.UTC))
+    created_at = Column(DateTime, default=lambda: datetime.datetime.now(datetime.UTC))
+    updated_at = Column(
+        DateTime,
+        default=lambda: datetime.datetime.now(datetime.UTC),
+        onupdate=lambda: datetime.datetime.now(datetime.UTC),
+    )
+    # Actor strings: alias of the API key, or 'admin' for KC-logged-in UI.
+    author = Column(String(255), nullable=True)
+    last_modified_by = Column(String(255), nullable=True)
     path_id = Column(Integer, ForeignKey('path.id'), nullable=False)
     order = Column(String(36), default=lambda: str(uuid.uuid4()))
     shortcut = Column(String(36), default="")
@@ -21,6 +29,9 @@ class Markdown(Base):
             'title': self.title,
             'content': self.content,
             'created_at': self.created_at,
+            'updated_at': self.updated_at,
+            'author': self.author,
+            'last_modified_by': self.last_modified_by,
             'path_id': self.path_id,
             'order': self.order,
             'shortcut': self.shortcut,

db/models/MarkdownPatch.py

@@ -17,6 +17,9 @@ class MarkdownPatch(Base):
     )
     title = Column(String(255), nullable=True)
     content = Column(Text, nullable=False)
+    # Actor strings: alias of the API key, or 'admin' for KC-logged-in UI.
+    author = Column(String(255), nullable=True)
+    last_modified_by = Column(String(255), nullable=True)
     order = Column(Integer, default=0)
     created_at = Column(DateTime, default=lambda: datetime.datetime.now(datetime.UTC))
     updated_at = Column(
@@ -31,6 +34,8 @@ class MarkdownPatch(Base):
             'markdown_id': self.markdown_id,
             'title': self.title,
             'content': self.content,
+            'author': self.author,
+            'last_modified_by': self.last_modified_by,
             'order': self.order,
             'created_at': self.created_at,
             'updated_at': self.updated_at,