def pick_proxy_and_forward(client):
global dns_polluted_at
if lan_ip.is_lan_ip(client.dst_ip):
try:
DIRECT_PROXY.forward(client)
except ProxyFallBack:
pass
return
if client.dst_ip in fqdns.WRONG_ANSWERS:
LOGGER.error('[%s] destination is GFW wrong answer' % repr(client))
dns_polluted_at = time.time()
NONE_PROXY.forward(client)
return
data_peeked = False
if china_shortcut_enabled:
china_dst = False
if china_ip.is_china_ip(client.dst_ip):
china_dst = True
else:
peek_data(client)
data_peeked = True
if client.host:
china_dst = fqdns.is_china_domain(client.host)
if china_dst:
try:
DIRECT_PROXY.forward(client)
except ProxyFallBack:
pass
return
if not data_peeked:
peek_data(client)
for i in range(3):
try:
proxy = pick_proxy(client)
except NotHttp:
return # give up
if not proxy:
raise NoMoreProxy()
if 'DIRECT' in proxy.flags:
LOGGER.debug('[%s] picked proxy: %s' % (repr(client), repr(proxy)))
else:
LOGGER.info('[%s] picked proxy: %s' % (repr(client), repr(proxy)))
try:
proxy.forward(client)
return
except ProxyFallBack as e:
if not e.silently:
LOGGER.error('[%s] fall back to other proxy due to %s: %s' %
(repr(client), e.reason, repr(proxy)))
client.tried_proxies[proxy] = e.reason
except NotHttp:
return # give up
raise NoMoreProxy()
def pick_proxy_and_forward(client):
global dns_polluted_at
if lan_ip.is_lan_traffic(client.src_ip, client.dst_ip):
try:
DIRECT_PROXY.forward(client)
except ProxyFallBack:
pass
return
if client.dst_ip in fqdns.WRONG_ANSWERS:
LOGGER.error('[%s] destination is GFW wrong answer' % repr(client))
dns_polluted_at = time.time()
NONE_PROXY.forward(client)
return
if china_shortcut_enabled and china_ip.is_china_ip(client.dst_ip):
try:
DIRECT_PROXY.forward(client)
except ProxyFallBack:
pass
return
if should_fix():
gevent.spawn(fix_by_refreshing_proxies)
peek_data(client)
if china_shortcut_enabled and client.host and fqdns.is_china_domain(client.host):
try:
DIRECT_PROXY.forward(client)
except ProxyFallBack:
pass
return
for i in range(3):
proxy = pick_proxy(client)
if not proxy:
raise NoMoreProxy()
if 'DIRECT' in proxy.flags:
LOGGER.debug('[%s] picked proxy: %s' % (repr(client), repr(proxy)))
else:
LOGGER.info('[%s] picked proxy: %s' % (repr(client), repr(proxy)))
try:
proxy.forward(client)
return
except ProxyFallBack as e:
if not e.silently:
LOGGER.error('[%s] fall back to other proxy due to %s: %s' % (repr(client), e.reason, repr(proxy)))
client.tried_proxies[proxy] = e.reason
except NotHttp:
try:
return DIRECT_PROXY.forward(client)
except client.ProxyFallBack:
return # give up
raise NoMoreProxy()
def is_china_dst(client):
if china_ip.is_china_ip(client.dst_ip):
return True
if client.host and fqdns.is_china_domain(client.host):
return True
return False
def is_china_dst(client):
if china_ip.is_china_ip(client.dst_ip):
return True
if client.host and fqdns.is_china_domain(client.host):
return True
return False