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[feature] update proof-of-work to allow setting required rounds (#4186)

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# Description

This updates our proof-of-work middleware, NoLLaMas, to work on a more easily configurable algorithm (thank you f0x for bringing this to my attention!). Instead of requiring that a solution with pre-determined number of '0' chars be found, it now pre-computes a result with a pre-determined nonce value that it expects the client to iterate up-to. (though with some level of jitter applied, to prevent it being too-easily gamed). This allows the user to configure roughly how many hash-encode rounds they want their clients to have to complete.

## Checklist

- [x] I/we have read the [GoToSocial contribution guidelines](https://codeberg.org/superseriousbusiness/gotosocial/src/branch/main/CONTRIBUTING.md).
- [x] I/we have discussed the proposed changes already, either in an issue on the repository, or in the Matrix chat.
- [x] I/we have not leveraged AI to create the proposed changes.
- [x] I/we have performed a self-review of added code.
- [x] I/we have written code that is legible and maintainable by others.
- [x] I/we have commented the added code, particularly in hard-to-understand areas.
- [x] I/we have made any necessary changes to documentation.
- [ ] I/we have added tests that cover new code.
- [x] I/we have run tests and they pass locally with the changes.
- [x] I/we have run `go fmt ./...` and `golangci-lint run`.

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4186
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>
This commit is contained in:
kim
2025-05-26 11:57:50 +02:00
committed by tobi
parent b6ff55662e
commit 326e04283a
23 changed files with 4350 additions and 160 deletions
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13
example/config.yaml
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@@ -1307,10 +1307,9 @@ advanced-header-filter-mode: ""
advanced-scraper-deterrence-enabled: false
# Uint. Allows tweaking the difficulty of the proof-of-work algorithm
# used in the scraper deterrence. This determines how many leading '0'
# characters are required to be generated in each solution. Higher
# values will on-average take longer to find solutions for, and the
# inverse is also true.
# used in the scraper deterrence. This determines roughly how many hash
# encode rounds we require the client to complete to find a solution.
# Higher values will take longer to find solutions for, and vice-versa.
#
# The downside is that if your deterrence takes too long to solve,
# it may deter some users from viewing your web status / profile page.
@@ -1321,6 +1320,6 @@ advanced-scraper-deterrence-enabled: false
# For more details please check the documentation at:
# https://docs.gotosocial.org/en/latest/advanced/scraper_deterrence
#
# Examples: [3, 4, 5]
# Default: 4
advanced-scraper-deterrence-difficulty: 4
# Examples: [50000, 100000, 500000]
# Default: 100000
advanced-scraper-deterrence-difficulty: 100000