3771a3b627
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>
Anubis
Anubis weighs the soul of your connection using a sha256 proof-of-work challenge in order to protect upstream resources from scraper bots.
Installing and using this will likely result in your website not being indexed by some search engines. This is considered a feature of Anubis, not a bug.
This is a bit of a nuclear response, but AI scraper bots scraping so aggressively have forced my hand. I hate that I have to do this, but this is what we get for the modern Internet because bots don't conform to standards like robots.txt, even when they claim to.
In most cases, you should not need this and can probably get by using Cloudflare to protect a given origin. However, for circumstances where you can't or won't use Cloudflare, Anubis is there for you.
If you want to try this out, connect to anubis.techaro.lol.
Support
If you run into any issues running Anubis, please open an issue and tag it with the Anubis tag. Please include all the information I would need to diagnose your issue.
For live chat, please join the Patreon and ask in the Patron discord in the channel #anubis.