1 files changed, 103 insertions, 0 deletions
diff --git a/src/leap/soledad/common/errors.py b/src/leap/soledad/common/errors.py
new file mode 100644
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+++ b/src/leap/soledad/common/errors.py
@@ -0,0 +1,103 @@
+# -*- coding: utf-8 -*-
+# errors.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+"""
+Soledad errors.
+"""
+
+from .l2db import errors
+from .l2db.remote import http_errors
+
+
+def register_exception(cls):
+    """
+    A small decorator that registers exceptions in u1db maps.
+    """
+    # update u1db "wire description to status" and "wire description to
+    # exception" maps.
+    http_errors.wire_description_to_status.update({
+        cls.wire_description: cls.status})
+    errors.wire_description_to_exc.update({
+        cls.wire_description: cls})
+    # do not modify the exception
+    return cls
+
+
+class SoledadError(errors.U1DBError):
+
+    """
+    Base Soledad HTTP errors.
+    """
+    pass
+
+
+#
+# Authorization errors
+#
+
+
+class DatabaseAccessError(Exception):
+    pass
+
+
+@register_exception
+class InvalidAuthTokenError(errors.Unauthorized):
+
+    """
+    Exception raised when failing to get authorization for some action because
+    the provided token either does not exist in the tokens database, has a
+    distinct structure from the expected one, or is associated with a user
+    with a distinct uuid than the one provided by the client.
+    """
+
+    wire_descrition = "invalid auth token"
+    status = 401
+
+
+#
+# SoledadBackend errors
+# u1db error statuses also have to be updated
+http_errors.ERROR_STATUSES = set(
+    http_errors.wire_description_to_status.values())
+
+
+class InvalidURLError(Exception):
+    """
+    Exception raised when Soledad encounters a malformed URL.
+    """
+
+
+class BackendNotReadyError(SoledadError):
+    """
+    Generic exception raised when the backend is not ready to dispatch a client
+    request.
+    """
+    wire_description = "backend not ready"
+    status = 500
+
+
+class WrongCouchSchemaVersionError(SoledadError):
+    """
+    Raised in case there is a user database with wrong couch schema version.
+    """
+
+
+class MissingCouchConfigDocumentError(SoledadError):
+    """
+    Raised if a database has documents but lacks the couch config document.
+    """