Anti-censorship team report: July 2020
August 10, 2020
Tor’s anti-censorship team writes monthly reports to keep the world updated on its progress. This blog post summarizes the anti-censorship work we got done in July 2020. Let us know if you have any questions or feedback!
Rolled out a feature to match up Snowflake proxies and clients based on their NAT type. This will drastically improve performance for Snowflake clients behind restrictive NATs.
Added more STUN servers to default configuration in Tor Browser. This solves two issues: it allows clients to perform NAT type discovery to be matched up with more compatible proxies, and it unblocks Snowflake in areas that block access to Google’s STUN servers.
Adapted Snowflake CI to the new GitLab instance.
Investigated proxy-go timeouts.
Fixed a small bug that could cause infinite hangs in Snowflake proxies and clients.
Worked on a docker container for easy deployment of Snowflake proxies.
Moved forward with our Android app UI.
Fixed a critical bug that prevented BridgeDB from reloading bridge descriptors every 30 minutes, as it’s supposed to. This bug significantly delayed the time until a new bridge was handed out to users. Hopefully, the patch will result in bridge operators seeing more users.
We are spending an increasing amount of time planning and experimenting with a reimplementation of BridgeDB. The reimplementation will make it easier to integrate new components like bridgestrap and new distributors like Salmon.
Added internal metrics to BridgeDB’s metrics. You can find the latest internal metrics here:
Wrote a patch that helps BridgeDB take into account bridge reachability measurements from wolpertinger.
Fixed incorrect and missing parts in BridgeDB’s metrics specification.
Fixed a broken link in BridgeDB’s README and ported BridgeDB’s “make pylint” target to Python 3.
Fixed a bug that would confuse BridgeDB when it dealt with Gmail’s quoted responses.
Made progress on creating a research plan for understanding the issues that users run into when interacting with BridgeDB.
Simplified bridgestrap’s code base and fixed a bug in its caching system.
Merged a volunteer-provided bridge setup guide for Windows.