mirror of
https://github.com/Rain-kl/OpenFlare.git
synced 2026-10-03 15:06:36 +08:00
ryan
416603b616
- Replace db.DB(ctx) with database.DB(ctx) from plugins/infra/database
- Replace db.Redis/db.PrefixedKey/db.GetJSON/db.SetJSON with cachepkg.* from plugins/infra/cache
- Replace pkg/persistence/idgen with pkg/idgen (already exists)
- Replace pkg/persistence/batchwriter with pkg/batchwriter (already exists)
- Replace pkg/persistence/migrator with pkg/migrator (already exists)
- Replace pkg/persistence/logstore with plugins/domain/risk_control/logstore
- Delete defunct pkg/{persistence,cap,message_gateway,push,shared,task}
- Fix vet issues: db alias in domain_test.go, driver_asynq_worker.TaskHandler reference
- Update Makefile architecture guard
- Update docs and skill references
- Update go.mod: gorilla/sessions promotion to direct dependency
57 lines
1.3 KiB
Go
57 lines
1.3 KiB
Go
// Copyright 2026 Arctel.net
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// SPDX-License-Identifier: Apache-2.0
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package pow
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import (
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"fmt"
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"strings"
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)
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// fnv1a returns the 32-bit FNV-1a hash of a string
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//
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//nolint:mnd // FNV-1a 算法位移常量
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func fnv1a(str string) uint32 {
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var hash uint32 = 2166136261
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for i := 0; i < len(str); i++ {
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hash ^= uint32(str[i])
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hash += (hash << 1) + (hash << 4) + (hash << 7) + (hash << 8) + (hash << 24)
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}
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return hash
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}
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// fnv1aResume resumes FNV-1a hashing from a given state
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//
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//nolint:mnd // FNV-1a 算法位移常量
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func fnv1aResume(state uint32, str string) uint32 {
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h := state
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for i := 0; i < len(str); i++ {
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h ^= uint32(str[i])
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h += (hashShift(h))
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}
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return h
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}
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// hashShift computes FNV-1a mix additions
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//
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//nolint:mnd
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func hashShift(h uint32) uint32 {
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return (h << 1) + (h << 4) + (h << 7) + (h << 8) + (h << 24)
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}
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// prngFromHash generates a hex string of specified length using an initial hash state
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//
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//nolint:mnd // xorshift 算法位移常量
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func prngFromHash(initialHash uint32, length int) string {
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state := initialHash
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var result strings.Builder
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for result.Len() < length {
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state ^= state << 13
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state ^= state >> 17
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state ^= state << 5
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hexStr := fmt.Sprintf("%08x", state)
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result.WriteString(hexStr)
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}
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return result.String()[:length]
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}
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