tsimplify interface.get_socket, and fix a bug with new certificates - electrum - Electrum Bitcoin wallet
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---
DIR commit 889ac782c11409cd15060617bf615e0c83e12a6d
DIR parent 99b60980cd1c01e79a7229303b6397d447fef683
HTML Author: ThomasV <thomasv@gitorious>
Date: Fri, 19 Sep 2014 09:25:44 +0200
simplify interface.get_socket, and fix a bug with new certificates
Diffstat:
M lib/interface.py | 104 +++++++++++++------------------
1 file changed, 43 insertions(+), 61 deletions(-)
---
DIR diff --git a/lib/interface.py b/lib/interface.py
t@@ -55,15 +55,12 @@ class TcpInterface(threading.Thread):
self.daemon = True
self.config = config if config is not None else SimpleConfig()
self.lock = threading.Lock()
-
self.is_connected = False
self.debug = False # dump network messages. can be changed at runtime using the console
self.message_id = 0
self.unanswered_requests = {}
-
# are we waiting for a pong?
self.is_ping = False
-
# parse server
self.server = server
self.host, self.port, self.protocol = self.server.split(':')
t@@ -72,6 +69,12 @@ class TcpInterface(threading.Thread):
self.proxy = self.parse_proxy_options(self.config.get('proxy'))
if self.proxy:
self.proxy_mode = proxy_modes.index(self.proxy["mode"]) + 1
+ socks.setdefaultproxy(self.proxy_mode, self.proxy["host"], int(self.proxy["port"]))
+ socket.socket = socks.socksocket
+ # prevent dns leaks, see http://stackoverflow.com/questions/13184205/dns-over-proxy
+ def getaddrinfo(*args):
+ return [(socket.AF_INET, socket.SOCK_STREAM, 6, '', (args[0], args[1]))]
+ socket.getaddrinfo = getaddrinfo
def process_response(self, response):
t@@ -116,54 +119,48 @@ class TcpInterface(threading.Thread):
queue.put((self, {'method':method, 'params':params, 'result':result, 'id':_id}))
- def get_socket(self):
+ def get_simple_socket(self):
+ try:
+ l = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM)
+ except socket.gaierror:
+ print_error("error: cannot resolve", self.host)
+ return
+ for res in l:
+ try:
+ s = socket.socket(res[0], socket.SOCK_STREAM)
+ s.connect(res[4])
+ return s
+ except:
+ continue
+ else:
+ print_error("failed to connect", self.host, self.port)
- if self.proxy is not None:
- socks.setdefaultproxy(self.proxy_mode, self.proxy["host"], int(self.proxy["port"]))
- socket.socket = socks.socksocket
- # prevent dns leaks, see http://stackoverflow.com/questions/13184205/dns-over-proxy
- def getaddrinfo(*args):
- return [(socket.AF_INET, socket.SOCK_STREAM, 6, '', (args[0], args[1]))]
- socket.getaddrinfo = getaddrinfo
+ def get_socket(self):
if self.use_ssl:
cert_path = os.path.join( self.config.path, 'certs', self.host)
if not os.path.exists(cert_path):
is_new = True
- # get server certificate.
- # Do not use ssl.get_server_certificate because it does not work with proxy
- try:
- l = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM)
- except socket.gaierror:
- print_error("error: cannot resolve", self.host)
+ s = self.get_simple_socket()
+ if s is None:
return
- for res in l:
- try:
- s = socket.socket( res[0], socket.SOCK_STREAM )
- s.connect(res[4])
- except:
- s = None
- continue
-
- # first try with ca
- try:
- ca_certs = os.path.join(self.config.path, 'ca', 'ca-bundle.crt')
- s = ssl.wrap_socket(s, ssl_version=ssl.PROTOCOL_SSLv3, cert_reqs=ssl.CERT_REQUIRED, ca_certs=ca_certs, do_handshake_on_connect=True)
- print_error("SSL with ca:", self.host)
- return s
- except ssl.SSLError, e:
- pass
-
- try:
- s = ssl.wrap_socket(s, ssl_version=ssl.PROTOCOL_SSLv3, cert_reqs=ssl.CERT_NONE, ca_certs=None)
- except ssl.SSLError, e:
- print_error("SSL error retrieving SSL certificate:", self.host, e)
- s = None
-
- break
+ # try with CA first
+ try:
+ ca_certs = os.path.join(self.config.path, 'ca', 'ca-bundle.crt')
+ s = ssl.wrap_socket(s, ssl_version=ssl.PROTOCOL_SSLv3, cert_reqs=ssl.CERT_REQUIRED, ca_certs=ca_certs, do_handshake_on_connect=True)
+ print_error("SSL with ca:", self.host)
+ return s
+ except ssl.SSLError, e:
+ pass
- if s is None:
+ # get server certificate.
+ # Do not use ssl.get_server_certificate because it does not work with proxy
+ s = self.get_simple_socket()
+ try:
+ s = ssl.wrap_socket(s, ssl_version=ssl.PROTOCOL_SSLv3, cert_reqs=ssl.CERT_NONE, ca_certs=None)
+ except ssl.SSLError, e:
+ print_error("SSL error retrieving SSL certificate:", self.host, e)
return
dercert = s.getpeercert(True)
t@@ -174,31 +171,16 @@ class TcpInterface(threading.Thread):
temporary_path = cert_path + '.temp'
with open(temporary_path,"w") as f:
f.write(cert)
-
else:
is_new = False
- try:
- addrinfo = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM)
- except socket.gaierror:
- print_error("error: cannot resolve", self.host)
- return
-
- for res in addrinfo:
- try:
- s = socket.socket( res[0], socket.SOCK_STREAM )
- s.settimeout(2)
- s.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
- s.connect(res[4])
- except:
- s = None
- continue
- break
-
+ s = self.get_simple_socket()
if s is None:
- print_error("failed to connect", self.host, self.port)
return
+ s.settimeout(2)
+ s.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
+
if self.use_ssl:
try:
s = ssl.wrap_socket(s,