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[tor-commits] [nyx/master] Pretend log file entries are from the currnet year



commit 0dd3c643d48fbab03014c2c1d1d5aa201f5be57c
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Wed Apr 29 09:56:14 2015 -0700

    Pretend log file entries are from the currnet year
    
    Log files lack the year so we gotta guess (#15607). We hardcoded 2012 so this
    would still work for leap years but this is a pretty gross hack. Better to
    pretend the log entries are recent, and if we hit a leap year edge case then
    meh. User just won't get log prepopulation.
---
 nyx/log_panel.py |   13 +++++--------
 nyx/util/log.py  |   14 ++++++++++----
 2 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/nyx/log_panel.py b/nyx/log_panel.py
index a592e56..e1465ab 100644
--- a/nyx/log_panel.py
+++ b/nyx/log_panel.py
@@ -128,18 +128,15 @@ class LogPanel(panel.Panel, threading.Thread):
     # fetches past tor events from log file, if available
 
     if CONFIG['features.log.prepopulate']:
-      set_runlevels = list(set.intersection(set(self.logged_events), set(list(log.Runlevel))))
-      read_limit = CONFIG['features.log.prepopulateReadLimit']
+      log_location = log_file_path(tor_controller())
 
-      logging_location = log_file_path(tor_controller())
-
-      if logging_location:
+      if log_location:
         try:
-          for entry in reversed(list(read_tor_log(logging_location, read_limit))):
-            if entry.type in set_runlevels:
+          for entry in reversed(list(read_tor_log(log_location, CONFIG['features.log.prepopulateReadLimit']))):
+            if entry.type in self.logged_events:
               self._msg_log.add(entry)
         except IOError as exc:
-          log.info('Unable to read log located at %s: %s' % (logging_location, exc))
+          log.info('Unable to read log located at %s: %s' % (log_location, exc))
         except ValueError as exc:
           log.info(str(exc))
 
diff --git a/nyx/util/log.py b/nyx/util/log.py
index a2e3820..e188cb4 100644
--- a/nyx/util/log.py
+++ b/nyx/util/log.py
@@ -3,6 +3,7 @@ Logging utilities, primiarily short aliases for logging a message at various
 runlevels.
 """
 
+import datetime
 import os
 import time
 import threading
@@ -376,18 +377,23 @@ def read_tor_log(path, read_limit = None):
 
     runlevel = line_comp[3][1:-1].upper()
     msg = ' '.join(line_comp[4:])
+    current_year = str(datetime.datetime.now().year)
 
-    # Pretending the year is 2012 because 2012 is a leap year. We don't know
-    # the actual year (#15607) so picking something else risks strptime failing
-    # when it reads Feb 29th (#5265).
+    # Pretending it's the current year. We don't know the actual year (#15607)
+    # and this may fail due to leap years when picking Feb 29th (#5265).
 
     try:
-      timestamp_str = '2012 ' + ' '.join(line_comp[:3])
+      timestamp_str = current_year + ' ' + ' '.join(line_comp[:3])
       timestamp_str = timestamp_str.split('.', 1)[0]  # drop fractional seconds
       timestamp_comp = list(time.strptime(timestamp_str, '%Y %b %d %H:%M:%S'))
       timestamp_comp[8] = isdst
 
       timestamp = int(time.mktime(timestamp_comp))  # converts local to unix time
+
+      if timestamp > time.time():
+        # log entry is from before a year boundary
+        timestamp_comp[0] -= 1
+        timestamp = int(time.mktime(timestamp_comp))
     except ValueError:
       raise ValueError("Log located at %s has a timestamp we don't recognize: %s" % (path, ' '.join(line_comp[:3])))
 



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