location.in: do not confuse UTC with local time zones

[location/libloc.git] / src / python / location.in

diff --git a/src/python/location.in b/src/python/location.in
index a8048047c46d5a427230c0d365dab719b90fd071..0d09210d13fd25722252df77a3342cd98f1af385 100644 (file)
--- a/src/python/location.in
+++ b/src/python/location.in
@@ -88,6 +88,10 @@ class CLI(object):
 
                # Update
                update = subparsers.add_parser("update", help=_("Update database"))
+               update.add_argument("--cron",
+                       help=_("Update the library only once per interval"),
+                       choices=("daily", "weekly", "monthly"),
+               )
                update.set_defaults(func=self.handle_update)
 
                # Verify
@@ -195,9 +199,14 @@ class CLI(object):
                try:
                        db = location.Database(args.database)
                except FileNotFoundError as e:
-                       sys.stderr.write("location: Could not open database %s: %s\n" \
-                               % (args.database, e))
-                       sys.exit(1)
+                       # Allow continuing without a database
+                       if args.func == self.handle_update:
+                               db = None
+
+                       else:
+                               sys.stderr.write("location: Could not open database %s: %s\n" \
+                                       % (args.database, e))
+                               sys.exit(1)
 
                # Translate family (if present)
                if "family" in args:
@@ -388,14 +397,30 @@ class CLI(object):
                                print(a)
 
        def handle_update(self, db, ns):
+               if ns.cron and db:
+                       now = time.time()
+
+                       if ns.cron == "daily":
+                               delta = datetime.timedelta(days=1)
+                       elif ns.cron == "weekly":
+                               delta = datetime.timedelta(days=7)
+                       elif ns.cron == "monthly":
+                               delta = datetime.timedelta(days=30)
+
+                       delta = delta.total_seconds()
+
+                       # Check if the database has recently been updated
+                       if db.created_at >= (now - delta):
+                               log.info(
+                                       _("The database has been updated recently"),
+                               )
+                               return 3
+
                # Fetch the timestamp we need from DNS
                t = location.discover_latest_version()
 
-               # Parse timestamp into datetime format
-               timestamp = datetime.datetime.fromtimestamp(t) if t else None
-
                # Check the version of the local database
-               if db and timestamp and db.created_at >= timestamp.timestamp():
+               if db and t and db.created_at >= t:
                        log.info("Already on the latest version")
                        return
 
@@ -423,13 +448,7 @@ class CLI(object):
 
                return 0
 
-       def handle_verify(self, ns):
-               try:
-                       db = location.Database(ns.database)
-               except FileNotFoundError as e:
-                       log.error("%s: %s" % (ns.database, e))
-                       return 127
-
+       def handle_verify(self, db, ns):
                # Verify the database
                with open(ns.public_key, "r") as f:
                        if not db.verify(f):
@@ -549,6 +568,37 @@ class CLI(object):
                e.export(ns.directory, countries=countries, asns=asns, families=families)
 
 
+def format_timedelta(t):
+       s = []
+
+       if t.days:
+               s.append(
+                       _("One Day", "%(days)s Days", t.days) % { "days" : t.days, }
+               )
+
+       hours = t.seconds // 3600
+       if hours:
+               s.append(
+                       _("One Hour", "%(hours)s Hours", hours) % { "hours" : hours, }
+               )
+
+       minutes = (t.seconds % 3600) // 60
+       if minutes:
+               s.append(
+                       _("One Minute", "%(minutes)s Minutes", minutes) % { "minutes" : minutes, }
+               )
+
+       seconds = t.seconds % 60
+       if t.seconds:
+               s.append(
+                       _("One Second", "%(seconds)s Seconds", seconds) % { "seconds" : seconds, }
+               )
+
+       if not s:
+               return _("Now")
+
+       return _("%s ago") % ", ".join(s)
+
 def main():
        # Run the command line interface
        c = CLI()