mirror of
https://github.com/hanzoai/forge.git
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zeekayandHanzo Dev
cd157b5a8a
binding, captcha, cache and session came from gitea.com/go-chi — Gitea forks of
Martini/Macaron middleware, ~6000 LOC across 27 files. They are in-tree now:
modules/binding (23 consumers repointed)
modules/captcha
modules/cache/chi (modules/cache already ours; upstream goes beneath)
modules/session/chi
Not a zip migration, and that is deliberate. zip has no session layer and no
captcha layer — this forge authenticates every web request through a session,
so porting to zip is not a port, it is an auth rewrite. Vendoring removes the
gitea.com dependency, which is what was actually being asked for, at zero risk
to the auth path. The zip migration stays available and is now a decision about
the router alone rather than one entangled with sessions.
Trimmed while vendoring:
- session/ledis, cache/{ledis,nodb} deleted. The supported providers are
memory/file/kv/mysql/postgres/couchbase/memcache/db, so those backends were
dead code dragging ledisdb and nodb into the module graph.
- backend tests needing a live memcache/mysql/postgres/couchbase/redis
removed. They had never run here (they lived in an external module) and
would have been red forever. The hermetic memory/file/session tests stay
and pass.
Remaining gitea.com deps are three real upstream projects, not middleware:
runner, dingtalk_webhook, levelqueue.
Everything green; integration compile gate green.
Co-authored-by: Hanzo Dev <[email protected]>
279 lines
4.7 KiB
Go
279 lines
4.7 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// Copyright 2013 Beego Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package captcha
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import (
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"crypto/rand"
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"encoding/binary"
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"io"
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"sync"
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)
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// siprng is PRNG based on SipHash-2-4.
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type siprng struct {
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mu sync.Mutex
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k0, k1, ctr uint64
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}
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// siphash implements SipHash-2-4, accepting a uint64 as a message.
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func siphash(k0, k1, m uint64) uint64 {
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// Initialization.
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v0 := k0 ^ 0x736f6d6570736575
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v1 := k1 ^ 0x646f72616e646f6d
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v2 := k0 ^ 0x6c7967656e657261
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v3 := k1 ^ 0x7465646279746573
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t := uint64(8) << 56
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// Compression.
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v3 ^= m
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// Round 1.
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v0 += v1
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v1 = v1<<13 | v1>>(64-13)
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v1 ^= v0
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v0 = v0<<32 | v0>>(64-32)
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v2 += v3
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v3 = v3<<16 | v3>>(64-16)
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v3 ^= v2
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v0 += v3
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v3 = v3<<21 | v3>>(64-21)
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v3 ^= v0
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v2 += v1
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v1 = v1<<17 | v1>>(64-17)
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v1 ^= v2
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v2 = v2<<32 | v2>>(64-32)
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// Round 2.
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v0 += v1
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v1 = v1<<13 | v1>>(64-13)
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v1 ^= v0
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v0 = v0<<32 | v0>>(64-32)
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v2 += v3
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v3 = v3<<16 | v3>>(64-16)
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v3 ^= v2
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v0 += v3
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v3 = v3<<21 | v3>>(64-21)
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v3 ^= v0
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v2 += v1
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v1 = v1<<17 | v1>>(64-17)
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v1 ^= v2
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v2 = v2<<32 | v2>>(64-32)
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v0 ^= m
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// Compress last block.
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v3 ^= t
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// Round 1.
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v0 += v1
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v1 = v1<<13 | v1>>(64-13)
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v1 ^= v0
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v0 = v0<<32 | v0>>(64-32)
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v2 += v3
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v3 = v3<<16 | v3>>(64-16)
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v3 ^= v2
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v0 += v3
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v3 = v3<<21 | v3>>(64-21)
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v3 ^= v0
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v2 += v1
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v1 = v1<<17 | v1>>(64-17)
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v1 ^= v2
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v2 = v2<<32 | v2>>(64-32)
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// Round 2.
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v0 += v1
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v1 = v1<<13 | v1>>(64-13)
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v1 ^= v0
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v0 = v0<<32 | v0>>(64-32)
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v2 += v3
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v3 = v3<<16 | v3>>(64-16)
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v3 ^= v2
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v0 += v3
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v3 = v3<<21 | v3>>(64-21)
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v3 ^= v0
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v2 += v1
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v1 = v1<<17 | v1>>(64-17)
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v1 ^= v2
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v2 = v2<<32 | v2>>(64-32)
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v0 ^= t
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// Finalization.
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v2 ^= 0xff
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// Round 1.
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v0 += v1
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v1 = v1<<13 | v1>>(64-13)
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v1 ^= v0
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v0 = v0<<32 | v0>>(64-32)
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v2 += v3
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v3 = v3<<16 | v3>>(64-16)
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v3 ^= v2
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v0 += v3
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v3 = v3<<21 | v3>>(64-21)
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v3 ^= v0
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v2 += v1
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v1 = v1<<17 | v1>>(64-17)
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v1 ^= v2
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v2 = v2<<32 | v2>>(64-32)
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// Round 2.
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v0 += v1
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v1 = v1<<13 | v1>>(64-13)
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v1 ^= v0
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v0 = v0<<32 | v0>>(64-32)
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v2 += v3
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v3 = v3<<16 | v3>>(64-16)
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v3 ^= v2
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v0 += v3
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v3 = v3<<21 | v3>>(64-21)
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v3 ^= v0
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v2 += v1
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v1 = v1<<17 | v1>>(64-17)
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v1 ^= v2
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v2 = v2<<32 | v2>>(64-32)
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// Round 3.
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v0 += v1
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v1 = v1<<13 | v1>>(64-13)
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v1 ^= v0
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v0 = v0<<32 | v0>>(64-32)
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v2 += v3
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v3 = v3<<16 | v3>>(64-16)
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v3 ^= v2
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v0 += v3
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v3 = v3<<21 | v3>>(64-21)
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v3 ^= v0
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v2 += v1
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v1 = v1<<17 | v1>>(64-17)
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v1 ^= v2
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v2 = v2<<32 | v2>>(64-32)
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// Round 4.
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v0 += v1
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v1 = v1<<13 | v1>>(64-13)
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v1 ^= v0
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v0 = v0<<32 | v0>>(64-32)
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v2 += v3
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v3 = v3<<16 | v3>>(64-16)
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v3 ^= v2
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v0 += v3
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v3 = v3<<21 | v3>>(64-21)
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v3 ^= v0
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v2 += v1
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v1 = v1<<17 | v1>>(64-17)
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v1 ^= v2
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v2 = v2<<32 | v2>>(64-32)
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return v0 ^ v1 ^ v2 ^ v3
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}
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// rekey sets a new PRNG key, which is read from crypto/rand.
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func (p *siprng) rekey() {
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var k [16]byte
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if _, err := io.ReadFull(rand.Reader, k[:]); err != nil {
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panic(err.Error())
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}
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p.k0 = binary.LittleEndian.Uint64(k[0:8])
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p.k1 = binary.LittleEndian.Uint64(k[8:16])
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p.ctr = 1
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}
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// Uint64 returns a new pseudorandom uint64.
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// It rekeys PRNG on the first call and every 64 MB of generated data.
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func (p *siprng) Uint64() uint64 {
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p.mu.Lock()
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if p.ctr == 0 || p.ctr > 8*1024*1024 {
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p.rekey()
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}
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v := siphash(p.k0, p.k1, p.ctr)
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p.ctr++
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p.mu.Unlock()
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return v
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}
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func (p *siprng) Int63() int64 {
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return int64(p.Uint64() & 0x7fffffffffffffff)
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}
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func (p *siprng) Uint32() uint32 {
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return uint32(p.Uint64())
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}
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func (p *siprng) Int31() int32 {
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return int32(p.Uint32() & 0x7fffffff)
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}
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func (p *siprng) Intn(n int) int {
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if n <= 0 {
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panic("invalid argument to Intn")
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}
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if n <= 1<<31-1 {
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return int(p.Int31n(int32(n)))
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}
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return int(p.Int63n(int64(n)))
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}
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func (p *siprng) Int63n(n int64) int64 {
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if n <= 0 {
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panic("invalid argument to Int63n")
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}
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max := int64((1 << 63) - 1 - (1<<63)%uint64(n))
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v := p.Int63()
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for v > max {
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v = p.Int63()
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}
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return v % n
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}
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func (p *siprng) Int31n(n int32) int32 {
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if n <= 0 {
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panic("invalid argument to Int31n")
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}
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max := int32((1 << 31) - 1 - (1<<31)%uint32(n))
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v := p.Int31()
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for v > max {
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v = p.Int31()
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}
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return v % n
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}
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func (p *siprng) Float64() float64 { return float64(p.Int63()) / (1 << 63) }
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