diff options
| author | Adam Mathes <adam@adammathes.com> | 2026-02-14 14:46:37 -0800 |
|---|---|---|
| committer | Adam Mathes <adam@adammathes.com> | 2026-02-14 14:46:37 -0800 |
| commit | afa87af01c79a9baa539f2992d32154d2a4739bd (patch) | |
| tree | 92c7416db734270a2fee1d72ee9cc119379ff8e1 /vanilla/node_modules/nanoid/index.cjs | |
| parent | 3b927e84d200402281f68181cd4253bc77e5528d (diff) | |
| download | neko-afa87af01c79a9baa539f2992d32154d2a4739bd.tar.gz neko-afa87af01c79a9baa539f2992d32154d2a4739bd.tar.bz2 neko-afa87af01c79a9baa539f2992d32154d2a4739bd.zip | |
task: delete vanilla js prototype\n\n- Removed vanilla/ directory and web/dist/vanilla directory\n- Updated Makefile, Dockerfile, and CI workflow to remove vanilla references\n- Cleaned up web/web.go to remove vanilla embed and routes\n- Verified build and tests pass\n\nCloses NK-2tcnmq
Diffstat (limited to 'vanilla/node_modules/nanoid/index.cjs')
| -rw-r--r-- | vanilla/node_modules/nanoid/index.cjs | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/vanilla/node_modules/nanoid/index.cjs b/vanilla/node_modules/nanoid/index.cjs deleted file mode 100644 index c20e374..0000000 --- a/vanilla/node_modules/nanoid/index.cjs +++ /dev/null @@ -1,85 +0,0 @@ -let crypto = require('crypto') - -let { urlAlphabet } = require('./url-alphabet/index.cjs') - -// It is best to make fewer, larger requests to the crypto module to -// avoid system call overhead. So, random numbers are generated in a -// pool. The pool is a Buffer that is larger than the initial random -// request size by this multiplier. The pool is enlarged if subsequent -// requests exceed the maximum buffer size. -const POOL_SIZE_MULTIPLIER = 128 -let pool, poolOffset - -let fillPool = bytes => { - if (!pool || pool.length < bytes) { - pool = Buffer.allocUnsafe(bytes * POOL_SIZE_MULTIPLIER) - crypto.randomFillSync(pool) - poolOffset = 0 - } else if (poolOffset + bytes > pool.length) { - crypto.randomFillSync(pool) - poolOffset = 0 - } - poolOffset += bytes -} - -let random = bytes => { - // `|=` convert `bytes` to number to prevent `valueOf` abusing and pool pollution - fillPool((bytes |= 0)) - return pool.subarray(poolOffset - bytes, poolOffset) -} - -let customRandom = (alphabet, defaultSize, getRandom) => { - // First, a bitmask is necessary to generate the ID. The bitmask makes bytes - // values closer to the alphabet size. The bitmask calculates the closest - // `2^31 - 1` number, which exceeds the alphabet size. - // For example, the bitmask for the alphabet size 30 is 31 (00011111). - let mask = (2 << (31 - Math.clz32((alphabet.length - 1) | 1))) - 1 - // Though, the bitmask solution is not perfect since the bytes exceeding - // the alphabet size are refused. Therefore, to reliably generate the ID, - // the random bytes redundancy has to be satisfied. - - // Note: every hardware random generator call is performance expensive, - // because the system call for entropy collection takes a lot of time. - // So, to avoid additional system calls, extra bytes are requested in advance. - - // Next, a step determines how many random bytes to generate. - // The number of random bytes gets decided upon the ID size, mask, - // alphabet size, and magic number 1.6 (using 1.6 peaks at performance - // according to benchmarks). - let step = Math.ceil((1.6 * mask * defaultSize) / alphabet.length) - - return (size = defaultSize) => { - let id = '' - while (true) { - let bytes = getRandom(step) - // A compact alternative for `for (let i = 0; i < step; i++)`. - let i = step - while (i--) { - // Adding `|| ''` refuses a random byte that exceeds the alphabet size. - id += alphabet[bytes[i] & mask] || '' - if (id.length === size) return id - } - } - } -} - -let customAlphabet = (alphabet, size = 21) => - customRandom(alphabet, size, random) - -let nanoid = (size = 21) => { - // `|=` convert `size` to number to prevent `valueOf` abusing and pool pollution - fillPool((size |= 0)) - let id = '' - // We are reading directly from the random pool to avoid creating new array - for (let i = poolOffset - size; i < poolOffset; i++) { - // It is incorrect to use bytes exceeding the alphabet size. - // The following mask reduces the random byte in the 0-255 value - // range to the 0-63 value range. Therefore, adding hacks, such - // as empty string fallback or magic numbers, is unneccessary because - // the bitmask trims bytes down to the alphabet size. - id += urlAlphabet[pool[i] & 63] - } - return id -} - -module.exports = { nanoid, customAlphabet, customRandom, urlAlphabet, random } |
