Add mirrorresolv manage.py command

Dan:
* Fix up some style issues such as spacing between operators
* Ensure one failed lookup doesn't crash the whole script
* Be silent out of the box if there are no errors, just like mirrorcheck

Signed-off-by: PyroPeter <abi1789@googlemail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/mirrors/management/commands/mirrorresolv.py b/mirrors/management/commands/mirrorresolv.py
new file mode 100644
index 00000000..bcb24a52
--- /dev/null
+++ b/mirrors/management/commands/mirrorresolv.py
@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+"""
+mirrorresolv command
+
+Poll all mirror URLs and determine whether they have IPv4 and/or IPv6 addresses
+available.
+
+Usage: ./manage.py mirrorresolv
+"""
+
+from django.core.management.base import NoArgsCommand
+
+import sys
+import logging
+from urlparse import urlparse
+import socket
+
+from mirrors.models import MirrorUrl
+
+logging.basicConfig(
+    level=logging.WARNING,
+    format='%(asctime)s -> %(levelname)s: %(message)s',
+    datefmt='%Y-%m-%d %H:%M:%S',
+    stream=sys.stderr)
+logger = logging.getLogger()
+
+class Command(NoArgsCommand):
+    help = "Runs a check on all active mirror URLs to determine if they are reachable via IPv4 and/or v6."
+
+    def handle_noargs(self, **options):
+        v = int(options.get('verbosity', 0))
+        if v == 0:
+            logger.level = logging.ERROR
+        elif v == 1:
+            logger.level = logging.WARNING
+        elif v == 2:
+            logger.level = logging.DEBUG
+
+        return resolve_mirrors()
+
+def resolve_mirrors():
+    logger.debug("requesting list of mirror URLs")
+    for mirrorurl in MirrorUrl.objects.filter(mirror__active=True):
+        try:
+            hostname = urlparse(mirrorurl.url).hostname
+            logger.debug("resolving %3i (%s)" % (mirrorurl.id, hostname))
+            info = socket.getaddrinfo(hostname, None, 0, socket.SOCK_STREAM)
+            families = [x[0] for x in info]
+            mirrorurl.has_ipv4 = socket.AF_INET in families
+            mirrorurl.has_ipv6 = socket.AF_INET6 in families
+            mirrorurl.save()
+        except socket.error, e:
+            logger.warn("error resolving %s: %s" % (hostname, e))
+
+# vim: set ts=4 sw=4 et: