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* cmd/anubis: add a debug option for benchmarking hashrate
Having the ability to benchmark different proof-of-work implementations
is useful for extending Anubis. This adds a flag `--debug-benchmark-js`
(and its associated environment variable `DEBUG_BENCHMARK_JS`) for
serving a tool to do so.
Internally, a there is a new policy action, "DEBUG_BENCHMARK", which
serves the benchmarking tool instead of a challenge. The flag then
replaces all bot rules with a special rule matching every request
to that action. The benchmark page makes heavy use of inline styles,
because currently all global styles are shared across all pages. This
could be fixed, but I wanted to avoid major changes to the templates.
* web/js: add signal for aborting an active proof-of-work algorithm
Both proof-of-work algorithms now take an optional `AbortSignal`, which
immediately terminates all workers and returns `false` if aborted before
the challenge is complete.
* web/js: add algorithm comparison to the benchmark page
"Compare:" is added to the benchmark page for testing the relative
performance between two algorithms. Since benchmark runs generally have
high variance, it may take a while for the averages to converge on a
stable difference.
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Signed-off-by: Xe Iaso <me@xeiaso.net>
Co-authored-by: Xe Iaso <me@xeiaso.net>
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challenge (#87)
Since the challenge is done off of the main thread, there is no simple
way to report the progress done towards completing it. This change
adds a callback parameter, `progressCallback`, which is called with
the most recently attempted nonce every ~1024 iterations (should this
be configurable?). For the single-threaded "slow" algorithm, this is
exactly every 1024 iterations. For the multi-threaded "fast" algorithm,
threads take turns reporting in a round-robin as then notice they
have passed a multiple of 1024. This complexity is to avoid individual
threads falling behind their siblings due to the overhead of messaging
the main thread. To minimize this overhead as much as possible, a
regular number is sent instead of an object.
With the new information provided by the callback, a hash rate display
is added to the challenge page. This display is updated at most once
per second and set with tabular numbers to avoid the constantly changing
value being too visually distracting.
* web: show a progress bar based on completion probability
To provide more feedback to the user, the spinner is replaced with a
progress bar of the probability the challenge is complete. Since it
looks a little weird that a progress bar would fill up a quarter of the
way and then jump to the end (even though the probability would make
that happen 1 in 4 times), the bar is mapped with a quadratic easing
function to move faster at the beginning and then slow down as the
probability of redirection increases. If the probability exceeds 90%,
a message appears letting the user know things are taking longer than
expected and to continue being patient.
Signed-off-by: Xe Iaso <me@xeiaso.net>
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Closes #150
This should hopefully make Anubis more self-describing when errors do
happen so users can self-service.
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* Refactor anubis to split business logic into a lib, and cmd to just be direct usage.
* Post-rebase fixes.
* Update changelog, remove unnecessary one.
* lib: refactor this
This is mostly based on my personal preferences for how Go code should
be laid out. I'm not sold on the package name "lib" (I'd call it anubis
but that would stutter), but people are probably gonna import it as
libanubis so it's likely fine.
Packages have been "flattened" to centralize implementation with area of
concern. This goes against the Java-esque style that many people like,
but I think this helps make things simple.
Most notably: the dnsbl client (which is a hack) is an internal package
until it's made more generic. Then it can be made external.
I also fixed the logic such that `go generate` works and rebased on
main.
* internal/test: run tests iff npx exists and DONT_USE_NETWORK is not set
Signed-off-by: Xe Iaso <me@xeiaso.net>
* internal/test: install deps
Signed-off-by: Xe Iaso <me@xeiaso.net>
* .github/workflows: verbose go tests?
Signed-off-by: Xe Iaso <me@xeiaso.net>
* internal/test: sleep 2
Signed-off-by: Xe Iaso <me@xeiaso.net>
* internal/test: nix this test so CI works
Signed-off-by: Xe Iaso <me@xeiaso.net>
* internal/test: warmup per browser?
Signed-off-by: Xe Iaso <me@xeiaso.net>
* internal/test: disable for now :(
Signed-off-by: Xe Iaso <me@xeiaso.net>
* lib/anubis: do not apply bot rules if address check fails
Closes #83
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Signed-off-by: Xe Iaso <me@xeiaso.net>
Co-authored-by: Xe Iaso <me@xeiaso.net>
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