core rest - added node command api, changed default rest address to the local machine to avoid external connections

webapp/app.py

@@ -1,4 +1,5 @@
 import os
+import sys
 
 from flask import Flask
 from flask import jsonify
@@ -84,4 +85,7 @@ def handle_error(e):
 
 
 if __name__ == "__main__":
-    websocket_routes.socketio.run(app, host="0.0.0.0", debug=True)
+    host = "127.0.0.1"
+    if len(sys.argv) == 2:
+        host = sys.argv[1]
+    websocket_routes.socketio.run(app, host=host, debug=True)

webapp/node_routes.py

@@ -149,3 +149,14 @@ def get_node_links(session_id, node_id):
         links.append(link)
 
     return jsonify(links=links)
+
+
+@api.route("/sessions/<int:session_id>/nodes/<node_id>/command", methods=["PUT"])
+def node_command(session_id, node_id):
+    command = request.get_json() or {}
+    session = core_utils.get_session(coreemu, session_id)
+    node = core_utils.get_node(session, node_id)
+    logger.info("command: %s", command)
+    _, output = node.cmd_output(command)
+    logger.info("output: %s", output)
+    return jsonify(output)