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authorYun Huang <yun.huang@windriver.com>2018-03-18 15:54:25 +0800
committerYun Huang <yun.huang@windriver.com>2018-03-18 15:54:25 +0800
commitacf103dbf3555d6b5f2302054d47fb755c33e2f5 (patch)
treeb2a0d56062eb95e3b2bb05dc56dc13f4cdb92e71 /windriver/titanium_cloud/middleware.py
parenteb0fb51034382b1cdc85798c428b4f501c247eda (diff)
Update logging format
And enable MDC on entry and exit Change-Id: Ia78ad7116cf624c7df6d25d3a57f37b50d46988e Issue-ID: MULTICLOUD-177 Signed-off-by: Yun Huang <yun.huang@windriver.com>
Diffstat (limited to 'windriver/titanium_cloud/middleware.py')
-rw-r--r--windriver/titanium_cloud/middleware.py65
1 files changed, 65 insertions, 0 deletions
diff --git a/windriver/titanium_cloud/middleware.py b/windriver/titanium_cloud/middleware.py
new file mode 100644
index 00000000..cae9e9b1
--- /dev/null
+++ b/windriver/titanium_cloud/middleware.py
@@ -0,0 +1,65 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import uuid
+from django.conf import settings
+from onaplogging.mdcContext import MDC
+
+FORWARDED_FOR_FIELDS = ["HTTP_X_FORWARDED_FOR", "HTTP_X_FORWARDED_HOST",
+ "HTTP_X_FORWARDED_SERVER"]
+
+class LogContextMiddleware(object):
+
+ # the last IP behind multiple proxies, if no exist proxies
+ # get local host ip.
+ def _getLastIp(self, request):
+
+ ip = ""
+ try:
+ for field in FORWARDED_FOR_FIELDS:
+ if field in request.META:
+ if ',' in request.META[field]:
+ parts = request.META[field].split(',')
+ ip = parts[-1].strip().split(":")[0]
+ else:
+ ip = request.META[field].split(":")[0]
+
+ if ip == "":
+ ip = request.META.get("HTTP_HOST").split(":")[0]
+
+ except Exception:
+ pass
+
+ return ip
+
+
+ def process_request(self, request):
+ # fetch propageted Id from other component. if do not fetch id,
+ # generate one.
+ ReqeustID = request.META.get("HTTP_X_TRANSACTIONID", None)
+ if ReqeustID is None:
+ ReqeustID = uuid.uuid3(uuid.NAMESPACE_URL, settings.MULTIVIM_VERSION)
+ MDC.put("requestID", ReqeustID)
+ # generate the reqeust id
+ InvocationID = uuid.uuid3(uuid.NAMESPACE_DNS, settings.MULTIVIM_VERSION)
+ MDC.put("invocationID", InvocationID)
+ MDC.put("serviceName", settings.MULTIVIM_VERSION)
+ MDC.put("serviceIP", self._getLastIp(request))
+ return None
+
+ def process_response(self, request, response):
+
+ MDC.clear()
+ return response
+