Switch json timestamp from datetime.utcnow() to time.time()

1 files changed, 6 insertions, 5 deletions

diff --git a/bin/tracker_service.py b/bin/tracker_service.py
index 7e89c65632..a94e0047f1 100755
--- a/bin/tracker_service.py
+++ b/bin/tracker_service.py
@@ -7,7 +7,8 @@ import re
 import security_db
 from web_support import *
 import json
-from datetime import datetime
+import time
+import email.utils
 
 if __name__ == "__main__":
     if len(sys.argv) not in (3, 5):
@@ -1298,8 +1299,8 @@ Debian bug number.'''),
            self.json_generation_interval seconds ago """
 
         if self.json_timestamp: # we've generated the JSON at least once
-            delta = datetime.utcnow() - self.json_timestamp
-            if delta.total_seconds() <= self.json_generation_interval:
+            delta = time.time() - self.json_timestamp
+            if delta <= self.json_generation_interval:
                 # not expired yet, serve the cached data
                 return self.json_data
 
@@ -1453,12 +1454,12 @@ Debian bug number.'''),
         new_data = json.dumps(data, separators=(',', ':'))
         if new_data != self.json_data:
             self.json_data = new_data
-            self.json_timestamp = datetime.utcnow()
+            self.json_timestamp = time.time()
         return self.json_data
 
     def page_json(self, path, params, url):
         result = BinaryResult(self._get_json(),'application/octet-stream')
-        result.headers['Last-Modified'] = self.json_timestamp.strftime("%a, %d %b %Y %H:%M:%S GMT")
+        result.headers['Last-Modified'] = email.utils.formatdate(self.json_timestamp, usegmt=True)
         return result
 
     def page_debsecan(self, path, params, url):