An experimental alternative implementation of FriendlyCaptcha/friendly-lite-server in Rust using Actix Web.

https://dosenpfand.github.io/fcaptcha-rs/fcaptcha/ or via cargo doc.

Set the corresponding environment variables:

FCAPTCHA_BIND_ADDRESS
FCAPTCHA_BIND_PORT
FCAPTCHA_ACCESS_TTL
FCAPTCHA_PUZZLE_TTL
FCAPTCHA_SECRET_KEY
FCAPTCHA_API_KEY

Barebone server hosting puzzle generation and solution verification.

cargo run

or

docker-compose up

and open http://localhost:8080/build-puzzle

Demo with generation, verification and widget.

cargo run --example fcaptcha-demo

or

docker-compose --file example/docker-compose.yml up

and open http://localhost:8080

Demo generating a single puzzle and verifying a single solution.

cargo run --example fcaptcha-single-puzzle

Benchmark puzzle generation and solution verification

cargo bench

or puzzle generation over HTTP (needs the Apache HTTP benchmark tool).

docker-compose up -d && ab -n 1000000 -c 1000 -r http://127.0.0.1:8080/build-puzzle

Requires perf and cargo-flamegraph.

CARGO_PROFILE_RELEASE_DEBUG=true cargo flamegraph --bench benchmark

Requires cargo-fuzz.

cargo fuzz run fuzz_target_1

1. Resolve all TODOs in the code.
2. Benchmark against reference implementation.
3. Deploy to e.g. matheworkout.at