Reorganized

settings.py

@@ -0,0 +1,43 @@
+import logging
+import os.path
+import uuid
+import paramiko
+
+from tornado.options import define, options
+from policy import get_host_keys, get_policy_class
+
+
+define('address', default='127.0.0.1', help='listen address')
+define('port', default=8888, help='listen port', type=int)
+define('debug', default=False, help='debug mode', type=bool)
+define('policy', default='warning',
+       help='missing host key policy, reject|autoadd|warning')
+
+
+def get_application_settings():
+    base_dir = os.path.dirname(__file__)
+    filename = os.path.join(base_dir, 'known_hosts')
+    host_keys = get_host_keys(filename)
+    system_host_keys = get_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
+    policy_class = get_policy_class(options.policy)
+    logging.info(policy_class.__name__)
+
+    if policy_class is paramiko.client.AutoAddPolicy:
+        host_keys.save(filename)  # for permission test
+    elif policy_class is paramiko.client.RejectPolicy:
+        if not host_keys and not system_host_keys:
+            raise ValueError('Empty known_hosts with reject policy?')
+
+    settings = dict(
+        template_path=os.path.join(base_dir, 'templates'),
+        static_path=os.path.join(base_dir, 'static'),
+        cookie_secret=uuid.uuid4().hex,
+        xsrf_cookies=True,
+        host_keys=host_keys,
+        host_keys_filename=filename,
+        system_host_keys=system_host_keys,
+        policy=policy_class(),
+        debug=options.debug
+    )
+
+    return settings