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-rw-r--r--src/leap/eip/checks.py53
1 files changed, 51 insertions, 2 deletions
diff --git a/src/leap/eip/checks.py b/src/leap/eip/checks.py
index 4a2a9599..412be27b 100644
--- a/src/leap/eip/checks.py
+++ b/src/leap/eip/checks.py
@@ -1,7 +1,10 @@
import logging
import ssl
+import platform
import os
+import netifaces
+import ping
import requests
from leap.base import constants as baseconstants
@@ -319,8 +322,54 @@ class EIPConfigChecker(object):
# We should WRITE eip config if missing or
# incomplete at this point
- def ping_gateway(self):
- raise NotImplementedError
+ def test_internet_connection(self):
+ try:
+ requests.get('http://216.172.161.165')
+ except (requests.HTTPError, requests.RequestException) as e:
+ self.error = e.message
+ except requests.ConenctionError as e:
+ if e.message == "[Errno 113] No route to host":
+ if not self.is_internet_up():
+ self.error = "No valid internet connection found."
+ else:
+ self.error = "Provider server appears to be down."
+
+ def is_internet_up(self):
+ iface, gateway = self.get_default_interface_gateway()
+ self.ping_gateway(self)
+
+ def get_default_interface_gateway(self):
+ """only impletemented for linux so far."""
+ if not platform.system() == "Linux":
+ raise NotImplementedError
+
+ f = open("/proc/net/route")
+ route_table = f.readlines()
+ #toss out header
+ route_table.pop(0)
+
+ default_iface = None
+ gateway = None
+ while route_table:
+ line = route_table.pop(0)
+ iface, destination, gateway = line.split('\t')[0:3]
+ if destination == '00000000':
+ default_iface = iface
+ break
+
+ if not default_iface:
+ raise eipexceptions.NoDefaultInterfaceFoundError
+
+ if default_iface not in netifaces.interfaces():
+ raise eipexceptions.InterfaceNotFoundError
+
+ return default_iface, gateway
+
+ def ping_gateway(self, gateway):
+ #TODO: Discuss how much packet loss (%) is acceptable.
+ packet_loss = ping.quiet_ping(gateway)[0]
+ if packet_loss > 10:
+ raise eipexceptions.NoConnectionToGateway
#
# private helpers