mirror of
https://github.com/morluto/rea.git
synced 2026-11-13 10:12:50 +00:00
Sahinur
fdc4e3908b
Classify a native method-93 decoder window refusal once at the ZIP owner as limit/memory, retaining the fixed 128 MiB cap, native cause and existing corruption/CRC/size/cancellation handling. Derive recovery labels from the cap and share one independent frame fixture. Validated with 43 reader/translationtests,three actual CLI/stdio MCP cases, a pinned public GLFW payload rewrapped in independently verified ZIP controls, six equivalent CLI calls before/after, static checks and documentation checks. All input bytes remain unchanged, normal extraction matches exactly, and failed outputs are absent. ELF/GPU component refusal-policy gaps remain separate unverified full-format workflows. The original three unchecked human declarations are preserved. The explicitly authorized readiness-only exception applies after technical CI and review; no human-review attestation is added. Fixes #8623 Full technical CI 42279406899 passes, including all eight shards and required aggregates. Greptile reviews this head at 5/5; Codex cannot complete because the repository review quota is exhausted. The Author readiness-only exception is explicitly authorized; no human-review attestation is added. Assisted-by: Reimu (gensokyo-skills:reimu-incident-triage)
56 lines
2.1 KiB
TypeScript
56 lines
2.1 KiB
TypeScript
import { crc32, zstdCompressSync } from "node:zlib";
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/** A valid independent raw-block frame; its window is unrelated to its tiny output. */
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export const zstandardWindowFrameFixture = (windowDescriptor: number) => {
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const content = Buffer.from("REA independent frame control\n");
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const compressed = Buffer.from(
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"28b52ffd0090f1000052454120696e646570656e64656e74206672616d6520636f6e74726f6c0a",
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"hex",
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);
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compressed[5] = windowDescriptor;
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return { content, compressed };
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};
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/** One non-Zip64 member, independently framed from the PKWARE APPNOTE records. */
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export const zstandardZipFixture = (
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content: Buffer,
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options: {
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readonly method?: number;
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readonly crc?: number;
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readonly declaredSize?: number;
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readonly compressed?: Buffer;
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} = {},
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): Buffer => {
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const name = Buffer.from("member.txt");
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const compressed = options.compressed ?? zstdCompressSync(content);
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const method = options.method ?? 93;
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const checksum = options.crc ?? crc32(content);
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const declaredSize = options.declaredSize ?? content.length;
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const local = Buffer.alloc(30);
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local.writeUInt32LE(0x04034b50, 0);
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local.writeUInt16LE(63, 4);
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local.writeUInt16LE(method, 8);
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local.writeUInt16LE(0x5021, 12); // 2020-01-01, DOS date.
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local.writeUInt32LE(checksum, 14);
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local.writeUInt32LE(compressed.length, 18);
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local.writeUInt32LE(declaredSize, 22);
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local.writeUInt16LE(name.length, 26);
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const central = Buffer.alloc(46);
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central.writeUInt32LE(0x02014b50, 0);
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central.writeUInt16LE(63, 4);
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central.writeUInt16LE(63, 6);
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central.writeUInt16LE(method, 10);
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central.writeUInt16LE(0x5021, 14);
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central.writeUInt32LE(checksum, 16);
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central.writeUInt32LE(compressed.length, 20);
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central.writeUInt32LE(declaredSize, 24);
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central.writeUInt16LE(name.length, 28);
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const end = Buffer.alloc(22);
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end.writeUInt32LE(0x06054b50, 0);
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end.writeUInt16LE(1, 8);
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end.writeUInt16LE(1, 10);
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end.writeUInt32LE(central.length + name.length, 12);
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end.writeUInt32LE(local.length + name.length + compressed.length, 16);
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return Buffer.concat([local, name, compressed, central, name, end]);
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};
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