Added auto-enrollment request support to the device_management_backend.

net/tools/testserver/device_management.py

Index: net/tools/testserver/device_management.py
diff --git a/net/tools/testserver/device_management.py b/net/tools/testserver/device_management.py
index bbcc4f0b82ae0121eaadedbe990f1d2ee8f8a130..231669ce657e8b6cd7d27d58d6b20da4f895b4f9 100644
--- a/net/tools/testserver/device_management.py
+++ b/net/tools/testserver/device_management.py
@@ -44,6 +44,7 @@ Example:
 """
 
 import cgi
+import hashlib
 import logging
 import os
 import random
@@ -71,6 +72,9 @@ import chrome_device_policy_pb2 as dp
 # ASN.1 object identifier for PKCS#1/RSA.
 PKCS1_RSA_OID = '\x2a\x86\x48\x86\xf7\x0d\x01\x01\x01'
 
+# SHA256 sum of "0".
+SHA256_0 = hashlib.sha256('0').digest()

[pastarmovj, 2011/12/01 09:30:04]

If you only use haslib for this call why don't you just put the string
representation instead (possibly better escaped than what i pasted here :)
"_\xec\xebf\xff\xc8o8\xd9Rxlmily\xc2\xdb\xc29\xddN\x91\xb4g)\xd7:'\xfbW\xe9"

[Joao da Silva, 2011/12/01 09:42:07]

I prefer this format since it's less magical, and it's easier to change the
serial number and add more, if the need arises. wdyt?

[pastarmovj, 2011/12/01 09:49:03]

Ok I am fine with that.

+
 class RequestHandler(object):
   """Decodes and handles device management requests from clients.
 
@@ -144,6 +148,8 @@ class RequestHandler(object):
       return self.ProcessUnregister(rmsg.unregister_request)
     elif request_type == 'policy' or request_type == 'ping':
       return self.ProcessPolicy(rmsg.policy_request, request_type)
+    elif request_type == 'enterprise_check':
+      return self.ProcessAutoEnrollment(rmsg.auto_enrollment_request)
     else:
       return (400, 'Invalid request parameter')
 
@@ -254,6 +260,39 @@ class RequestHandler(object):
       else:
         return (400, 'Invalid policy_type')
 
+  def ProcessAutoEnrollment(self, msg):
+    """Handles an auto-enrollment check request.
+
+    The reply depends on the value of the modulus:
+      1: replies with no new modulus and the sha256 hash of "0"
+      2: replies with a new modulus, 4.
+      4: replies with a new modulus, 2.
+      8: fails with error 400.
+      anything else: replies with no new modulus and an empty list of hashes
+
+    These allow the client to pick the testing scenario its wants to simulate.
+
+    Args:
+      msg: The DeviceAutoEnrollmentRequest message received from the client.
+
+    Returns:
+      A tuple of HTTP status code and response data to send to the client.
+    """
+    auto_enrollment_response = dm.DeviceAutoEnrollmentResponse()
+
+    if msg.modulus == 1:
+      auto_enrollment_response.hashes.append(SHA256_0)
+    elif msg.modulus == 2:
+      auto_enrollment_response.modulus = 4
+    elif msg.modulus == 4:
+      auto_enrollment_response.modulus = 2
+    elif msg.modulus == 8:
+      return (400, 'Server error')
+
+    response = dm.DeviceManagementResponse()
+    response.auto_enrollment_response.CopyFrom(auto_enrollment_response)
+    return (200, response.SerializeToString())
+
   def SetProtobufMessageField(self, group_message, field, field_value):
     '''Sets a field in a protobuf message.