Check topology schema when loading/saving it

Fix #583

gns3server/schemas/compute.py

@@ -108,5 +108,5 @@ COMPUTE_OBJECT_SCHEMA = {
         }
     },
     "additionalProperties": False,
-    "required": ["compute_id", "protocol", "host", "port", "name", "connected"]
+    "required": ["compute_id", "protocol", "host", "port", "name"]
 }

gns3server/schemas/topology.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2015 GNS3 Technologies Inc.
+#
+# 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/>.
+
+#
+# This file contains the validation for checking a .gns3 file
+#
+
+from .compute import COMPUTE_OBJECT_SCHEMA
+from .drawing import DRAWING_OBJECT_SCHEMA
+from .link import LINK_OBJECT_SCHEMA
+from .node import NODE_OBJECT_SCHEMA
+
+
+TOPOLOGY_SCHEMA = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "description": "The topology",
+    "type": "object",
+    "properties": {
+        "project_id": {
+            "description": "Project UUID",
+            "type": "string",
+            "minLength": 36,
+            "maxLength": 36,
+            "pattern": "^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$"
+        },
+        "type": {
+            "description": "Type of file. It's always topology",
+            "enum": ["topology"]
+        },
+        "revision": {
+            "description": "Version of the .gns3 specification.",
+            "type": "integer"
+        },
+        "version": {
+            "description": "Version of the GNS3 software which have update the file for the last time",
+            "type": "string"
+        },
+        "name": {
+            "type": "string",
+            "description": "Name of the project"
+        },
+        "topology": {
+            "description": "The topology content",
+            "type": "object",
+            "properties": {
+                "computes": {
+                    "description": "Computes servers",
+                    "type": "array",
+                    "items": COMPUTE_OBJECT_SCHEMA
+                },
+                "drawings": {
+                    "description": "Drawings elements",
+                    "type": "array",
+                    "items": DRAWING_OBJECT_SCHEMA
+                },
+                "links": {
+                    "description": "Link elements",
+                    "type": "array",
+                    "items": LINK_OBJECT_SCHEMA
+                },
+                "nodes": {
+                    "description": "Nodes elements",
+                    "type": "array",
+                    "items": NODE_OBJECT_SCHEMA
+                }
+            },
+            "required": ["nodes", "links", "drawings", "computes"],
+            "additionalProperties": False
+        }
+    },
+    "required": [
+        "project_id", "type", "revision", "version", "name", "topology"
+    ],
+    "additionalProperties": False
+}