1 files changed, 37 insertions, 0 deletions
diff --git a/paste/makeapp.py b/paste/makeapp.py
new file mode 100644
index 0000000..34d1e1c
--- /dev/null
+++ b/paste/makeapp.py
@@ -0,0 +1,37 @@
+"""
+Helper functions for framework build_application functions.
+"""
+
+from paste.util import import_string
+from paste import lint
+from paste import errormiddleware
+from paste import configmiddleware
+
+def apply_conf_middleware(app, conf, first_middleware=()):
+    """
+    Applies any middleware that the configuration specifies,
+    returning the wrapped configuration.
+
+    If first_middleware is given, this middleware is applied most
+    closely to the application (before configuration middleware).
+    """
+    all_middleware = list(first_middleware)
+    all_middleware.extend(conf.get('middleware', []))
+    for middleware in all_middleware:
+        # @@: Should this use plugins too?
+        if isinstance(middleware, (str, unicode)):
+            middleware = import_string.eval_import(middleware)
+        app = middleware(app)
+        if conf.get('lint', False):
+            app = lint.middleware(app)
+    return app
+
+def apply_default_middleware(app, conf):
+    """
+    Applies middleware that is generally always used.
+    """
+    app = errormiddleware.ErrorMiddleware(app)
+    if conf.get('lint', False):
+        app = lint.middleware(app)
+    app = configmiddleware.config_middleware(app, conf)
+    return app