commit ccff2c10464b61d7f4654dd70529de1cc97946dc Author: Isis Lovecruft isis@torproject.org Date: Thu Apr 30 06:16:44 2015 +0000

Ignore networkstatus documents (mostly), if configured to do so.

* FIXES #15866: https://bugs.torproject.org/15866 --- lib/bridgedb/Main.py | 17 +++++++++++++---- lib/bridgedb/bridges.py | 32 +++++++++++++++++++++++--------- 2 files changed, 36 insertions(+), 13 deletions(-)

diff --git a/lib/bridgedb/Main.py b/lib/bridgedb/Main.py index 44413d2..88b386b 100644 --- a/lib/bridgedb/Main.py +++ b/lib/bridgedb/Main.py @@ -110,6 +110,10 @@ def load(state, splitter, clear=False):

logging.info("Loading bridges...")

+ ignoreNetworkstatus = state.IGNORE_NETWORKSTATUS + if ignoreNetworkstatus: + logging.info("Ignoring BridgeAuthority networkstatus documents.") + bridges = {} timestamps = {}

@@ -120,8 +124,7 @@ def load(state, splitter, clear=False): logging.info("Processing networkstatus descriptors...") for router in networkstatuses: bridge = Bridge() - bridge.updateFromNetworkStatus(router) - + bridge.updateFromNetworkStatus(router, ignoreNetworkstatus) try: bridge.assertOK() except MalformedBridgeInfo as error: @@ -136,12 +139,18 @@ def load(state, splitter, clear=False):

for router in serverdescriptors: try: - bridges[router.fingerprint].updateFromServerDescriptor(router) + bridge = bridges[router.fingerprint] except KeyError: logging.warn( ("Received server descriptor for bridge '%s' which wasn't " "in the networkstatus!") % router.fingerprint) - continue + if ignoreNetworkstatus: + bridge = Bridge() + else: + continue + + try: + bridge.updateFromServerDescriptor(router, ignoreNetworkstatus) except (ServerDescriptorWithoutNetworkstatus, MissingServerDescriptorDigest, ServerDescriptorDigestMismatch) as error: diff --git a/lib/bridgedb/bridges.py b/lib/bridgedb/bridges.py index 93b9fe9..65a462c 100644 --- a/lib/bridgedb/bridges.py +++ b/lib/bridgedb/bridges.py @@ -1379,33 +1379,38 @@ class Bridge(BridgeBackwardsCompatibility): """ return list(set([pt.methodname for pt in self.transports]))

- def updateFromNetworkStatus(self, descriptor): + def updateFromNetworkStatus(self, descriptor, ignoreNetworkstatus=False): """Update this bridge's attributes from a parsed networkstatus document.

:type descriptor: :api:`stem.descriptors.router_status_entry.RouterStatusEntry` :param descriptor: The networkstatus document for this bridge. + :param bool ignoreNetworkstatus: If ``True``, then ignore most of the + information in the networkstatus document. """ self.descriptors['networkstatus'] = descriptor

# These fields are *only* found in the networkstatus document: - self.descriptorDigest = descriptor.digest self.flags.update(descriptor.flags) - self.bandwidth = descriptor.bandwidth + self.descriptorDigest = descriptor.digest + + if not ignoreNetworkstatus: + self.bandwidth = descriptor.bandwidth

# These fields are also found in the server-descriptor. We will prefer # to use the information taken later from the server-descriptor # because it is signed by the bridge. However, for now, we harvest all # the info we can: self.fingerprint = descriptor.fingerprint - self.nickname = descriptor.nickname - self.address = descriptor.address - self.orPort = descriptor.or_port

- self._updateORAddresses(descriptor.or_addresses) + if not ignoreNetworkstatus: + self.nickname = descriptor.nickname + self.address = descriptor.address + self.orPort = descriptor.or_port + self._updateORAddresses(descriptor.or_addresses)

- def updateFromServerDescriptor(self, descriptor): + def updateFromServerDescriptor(self, descriptor, ignoreNetworkstatus=False): """Update this bridge's info from an ``@type bridge-server-descriptor``.

.. info:: @@ -1425,7 +1430,16 @@ class Bridge(BridgeBackwardsCompatibility): networkstatus entry, or its **descriptor** digest didn't match the expected digest (from the networkstatus entry). """ - self._checkServerDescriptor(descriptor) + if ignoreNetworkstatus: + try: + self._checkServerDescriptor(descriptor) + except (ServerDescriptorWithoutNetworkstatus, + MissingServerDescriptorDigest, + ServerDescriptorDigestMismatch) as ignored: + logging.warn(ignored) + else: + self._checkServerDescriptor(descriptor) + self.descriptors['server'] = descriptor

# Replace the values which we harvested from the networkstatus