commit a3bcb12b281a3ffb23cf747991811d4f999a27a8 Author: Isis Lovecruft isis@torproject.org Date: Sun May 10 22:07:24 2015 +0000

Handle ConnectionRefusedError and DNSLookupError in get-tor-exits script. --- scripts/get-tor-exits | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/scripts/get-tor-exits b/scripts/get-tor-exits index d4e59e3..fcd9fff 100755 --- a/scripts/get-tor-exits +++ b/scripts/get-tor-exits @@ -31,6 +31,8 @@ from twisted.internet import defer from twisted.internet import protocol from twisted.internet import reactor from twisted.internet import ssl +from twisted.internet.error import ConnectionRefusedError +from twisted.internet.error import DNSLookupError from twisted.internet.error import TimeoutError

@@ -70,11 +72,16 @@ def getSelfIPAddress(): s.close() return ip.compressed

-def handleTimeout(failure): - """Handle a **failure** due to a timedout connection attempt.""" - if failure.type == TimeoutError: +def handle(failure): + """Handle a **failure**.""" + if failure.type == ConnectionRefusedError: + log.msg("get-tor-exits: Could not download exitlist; connection was refused.") + elif failure.type == DNSLookupError: + log.msg("get-tor-exits: Could not download exitlist; domain resolution failed.") + elif failure.type == TimeoutError: log.msg("get-tor-exits: Could not download exitlist; connection timed out.") - failure.trap(TimeoutError) + + failure.trap(ConnectionRefusedError, DNSLookupError, TimeoutError)

def writeToFile(response, filename): log.msg("get-tor-exits: Downloading list of Tor exit relays.") @@ -167,7 +174,7 @@ def main(filename=None, address=None, port=None): agent = client.Agent(reactor, contextFactory) d = agent.request("GET", check) d.addCallback(writeToFile, fh) - d.addErrback(handleTimeout) + d.addErrback(handle) d.addCallbacks(log.msg, log.err)

if not reactor.running: