1 files changed, 58 insertions, 0 deletions
diff --git a/google_appengine/lib/webob/webob/datastruct.py b/google_appengine/lib/webob/webob/datastruct.py
new file mode 100755
index 0000000..d59116b
--- /dev/null
+++ b/google_appengine/lib/webob/webob/datastruct.py
@@ -0,0 +1,58 @@
+"""
+Contains some data structures.
+"""
+
+from webob.util.dictmixin import DictMixin
+
+class EnvironHeaders(DictMixin):
+    """An object that represents the headers as present in a
+    WSGI environment.
+
+    This object is a wrapper (with no internal state) for a WSGI
+    request object, representing the CGI-style HTTP_* keys as a
+    dictionary.  Because a CGI environment can only hold one value for
+    each key, this dictionary is single-valued (unlike outgoing
+    headers).
+    """
+
+    def __init__(self, environ):
+        self.environ = environ
+
+    def _trans_name(self, name):
+        key = 'HTTP_'+name.replace('-', '_').upper()
+        if key == 'HTTP_CONTENT_LENGTH':
+            key = 'CONTENT_LENGTH'
+        elif key == 'HTTP_CONTENT_TYPE':
+            key = 'CONTENT_TYPE'
+        return key
+
+    def _trans_key(self, key):
+        if key == 'CONTENT_TYPE':
+            return 'Content-Type'
+        elif key == 'CONTENT_LENGTH':
+            return 'Content-Length'
+        elif key.startswith('HTTP_'):
+            return key[5:].replace('_', '-').title()
+        else:
+            return None
+        
+    def __getitem__(self, item):
+        return self.environ[self._trans_name(item)]
+
+    def __setitem__(self, item, value):
+        self.environ[self._trans_name(item)] = value
+
+    def __delitem__(self, item):
+        del self.environ[self._trans_name(item)]
+
+    def __iter__(self):
+        for key in self.environ:
+            name = self._trans_key(key)
+            if name is not None:
+                yield name
+
+    def keys(self):
+        return list(iter(self))
+
+    def __contains__(self, item):
+        return self._trans_name(item) in self.environ