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Diffstat (limited to '')
| -rw-r--r-- | node_modules/tar/dist/commonjs/header.js | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/node_modules/tar/dist/commonjs/header.js b/node_modules/tar/dist/commonjs/header.js deleted file mode 100644 index f4a84fb..0000000 --- a/node_modules/tar/dist/commonjs/header.js +++ /dev/null @@ -1,348 +0,0 @@ -"use strict"; -// parse a 512-byte header block to a data object, or vice-versa -// encode returns `true` if a pax extended header is needed, because -// the data could not be faithfully encoded in a simple header. -// (Also, check header.needPax to see if it needs a pax header.) -var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) { - if (k2 === undefined) k2 = k; - var desc = Object.getOwnPropertyDescriptor(m, k); - if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) { - desc = { enumerable: true, get: function() { return m[k]; } }; - } - Object.defineProperty(o, k2, desc); -}) : (function(o, m, k, k2) { - if (k2 === undefined) k2 = k; - o[k2] = m[k]; -})); -var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) { - Object.defineProperty(o, "default", { enumerable: true, value: v }); -}) : function(o, v) { - o["default"] = v; -}); -var __importStar = (this && this.__importStar) || (function () { - var ownKeys = function(o) { - ownKeys = Object.getOwnPropertyNames || function (o) { - var ar = []; - for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k; - return ar; - }; - return ownKeys(o); - }; - return function (mod) { - if (mod && mod.__esModule) return mod; - var result = {}; - if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]); - __setModuleDefault(result, mod); - return result; - }; -})(); -Object.defineProperty(exports, "__esModule", { value: true }); -exports.Header = void 0; -const node_path_1 = require("node:path"); -const large = __importStar(require("./large-numbers.js")); -const types = __importStar(require("./types.js")); -const notNegative = (n) => n === undefined || n < 0 ? undefined : n; -class Header { - cksumValid = false; - needPax = false; - nullBlock = false; - block; - path; - mode; - uid; - gid; - size; - cksum; - #type = 'Unsupported'; - linkpath; - uname; - gname; - devmaj = 0; - devmin = 0; - atime; - ctime; - mtime; - charset; - comment; - constructor(data, off = 0, ex, gex) { - if (Buffer.isBuffer(data)) { - this.decode(data, off || 0, ex, gex); - } - else if (data) { - this.#slurp(data); - } - } - decode(buf, off, ex, gex) { - if (!off) { - off = 0; - } - if (!buf || !(buf.length >= off + 512)) { - throw new Error('need 512 bytes for header'); - } - // Decode the typeflag (independent of any pending PAX/GNU extended header) - // up front so we can tell whether THIS block is itself an intermediary - // extension header (PAX `x`/`g`, GNU long-name `L`, GNU long-link `K`). - // Per POSIX pax, a PAX extended header describes the *next file entry*, not - // the extension headers that may sit between it and that file. Applying the - // pending PAX overrides (notably `size`) to an intervening `L`/`K`/`x`/`g` - // header desynchronizes the stream relative to other tar implementations - // and enables tar interpretation-conflict / file-smuggling attacks. - const t = decString(buf, off + 156, 1); - const isNormalFS = types.normalFsTypes.has(t); - const exForFields = isNormalFS ? ex : undefined; - const gexForFields = isNormalFS ? gex : undefined; - this.path = exForFields?.path ?? decString(buf, off, 100); - this.mode = - exForFields?.mode ?? - gexForFields?.mode ?? - decNumber(buf, off + 100, 8); - this.uid = - exForFields?.uid ?? gexForFields?.uid ?? decNumber(buf, off + 108, 8); - this.gid = - exForFields?.gid ?? gexForFields?.gid ?? decNumber(buf, off + 116, 8); - this.size = notNegative(exForFields?.size ?? - gexForFields?.size ?? - decNumber(buf, off + 124, 12)); - this.mtime = - exForFields?.mtime ?? - gexForFields?.mtime ?? - decDate(buf, off + 136, 12); - this.cksum = decNumber(buf, off + 148, 12); - // if we have extended or global extended headers, apply them now - // See https://github.com/npm/node-tar/pull/187 - // Apply global before local, so it overrides. Never slurp the pending - // extended-header fields onto an intermediary extension header. - if (gexForFields) - this.#slurp(gexForFields, true); - if (exForFields) - this.#slurp(exForFields); - // old tar versions marked dirs as a file with a trailing / - if (types.isCode(t)) { - this.#type = t || '0'; - } - if (this.#type === '0' && this.path.slice(-1) === '/') { - this.#type = '5'; - } - // tar implementations sometimes incorrectly put the stat(dir).size - // as the size in the tarball, even though Directory entries are - // not able to have any body at all. In the very rare chance that - // it actually DOES have a body, we weren't going to do anything with - // it anyway, and it'll just be a warning about an invalid header. - if (this.#type === '5') { - this.size = 0; - } - this.linkpath = decString(buf, off + 157, 100); - if (buf.subarray(off + 257, off + 265).toString() === 'ustar\u000000') { - /* c8 ignore start */ - this.uname = - exForFields?.uname ?? - gexForFields?.uname ?? - decString(buf, off + 265, 32); - this.gname = - exForFields?.gname ?? - gexForFields?.gname ?? - decString(buf, off + 297, 32); - this.devmaj = - exForFields?.devmaj ?? - gexForFields?.devmaj ?? - decNumber(buf, off + 329, 8) ?? - 0; - this.devmin = - exForFields?.devmin ?? - gexForFields?.devmin ?? - decNumber(buf, off + 337, 8) ?? - 0; - /* c8 ignore stop */ - if (buf[off + 475] !== 0) { - // definitely a prefix, definitely >130 chars. - const prefix = decString(buf, off + 345, 155); - this.path = prefix + '/' + this.path; - } - else { - const prefix = decString(buf, off + 345, 130); - if (prefix) { - this.path = prefix + '/' + this.path; - } - /* c8 ignore start */ - this.atime = ex?.atime ?? gex?.atime ?? decDate(buf, off + 476, 12); - this.ctime = ex?.ctime ?? gex?.ctime ?? decDate(buf, off + 488, 12); - /* c8 ignore stop */ - } - } - let sum = 8 * 0x20; - for (let i = off; i < off + 148; i++) { - sum += buf[i]; - } - for (let i = off + 156; i < off + 512; i++) { - sum += buf[i]; - } - this.cksumValid = sum === this.cksum; - if (this.cksum === undefined && sum === 8 * 0x20) { - this.nullBlock = true; - } - } - #slurp(ex, gex = false) { - Object.assign(this, Object.fromEntries(Object.entries(ex).filter(([k, v]) => { - // we slurp in everything except for the path attribute in - // a global extended header, because that's weird. Also, any - // null/undefined values are ignored. - return !(v === null || - v === undefined || - (k === 'size' && Number(v) < 0) || - (k === 'path' && gex) || - (k === 'linkpath' && gex) || - k === 'global'); - }))); - } - encode(buf, off = 0) { - if (!buf) { - buf = this.block = Buffer.alloc(512); - } - if (this.#type === 'Unsupported') { - this.#type = '0'; - } - if (!(buf.length >= off + 512)) { - throw new Error('need 512 bytes for header'); - } - const prefixSize = this.ctime || this.atime ? 130 : 155; - const split = splitPrefix(this.path || '', prefixSize); - const path = split[0]; - const prefix = split[1]; - this.needPax = !!split[2]; - this.needPax = encString(buf, off, 100, path) || this.needPax; - this.needPax = encNumber(buf, off + 100, 8, this.mode) || this.needPax; - this.needPax = encNumber(buf, off + 108, 8, this.uid) || this.needPax; - this.needPax = encNumber(buf, off + 116, 8, this.gid) || this.needPax; - this.needPax = encNumber(buf, off + 124, 12, this.size) || this.needPax; - this.needPax = encDate(buf, off + 136, 12, this.mtime) || this.needPax; - buf[off + 156] = Number(this.#type.codePointAt(0)); - this.needPax = - encString(buf, off + 157, 100, this.linkpath) || this.needPax; - buf.write('ustar\u000000', off + 257, 8); - this.needPax = - encString(buf, off + 265, 32, this.uname) || this.needPax; - this.needPax = - encString(buf, off + 297, 32, this.gname) || this.needPax; - this.needPax = - encNumber(buf, off + 329, 8, this.devmaj) || this.needPax; - this.needPax = - encNumber(buf, off + 337, 8, this.devmin) || this.needPax; - this.needPax = - encString(buf, off + 345, prefixSize, prefix) || this.needPax; - if (buf[off + 475] !== 0) { - this.needPax = encString(buf, off + 345, 155, prefix) || this.needPax; - } - else { - this.needPax = encString(buf, off + 345, 130, prefix) || this.needPax; - this.needPax = - encDate(buf, off + 476, 12, this.atime) || this.needPax; - this.needPax = - encDate(buf, off + 488, 12, this.ctime) || this.needPax; - } - let sum = 8 * 0x20; - for (let i = off; i < off + 148; i++) { - sum += buf[i]; - } - for (let i = off + 156; i < off + 512; i++) { - sum += buf[i]; - } - this.cksum = sum; - encNumber(buf, off + 148, 8, this.cksum); - this.cksumValid = true; - return this.needPax; - } - get type() { - return (this.#type === 'Unsupported' ? - this.#type - : types.name.get(this.#type)); - } - get typeKey() { - return this.#type; - } - set type(type) { - const c = String(types.code.get(type)); - if (types.isCode(c) || c === 'Unsupported') { - this.#type = c; - } - else if (types.isCode(type)) { - this.#type = type; - } - else { - throw new TypeError('invalid entry type: ' + type); - } - } -} -exports.Header = Header; -const splitPrefix = (p, prefixSize) => { - const pathSize = 100; - let pp = p; - let prefix = ''; - let ret = undefined; - const root = node_path_1.posix.parse(p).root || '.'; - if (Buffer.byteLength(pp) < pathSize) { - ret = [pp, prefix, false]; - } - else { - // first set prefix to the dir, and path to the base - prefix = node_path_1.posix.dirname(pp); - pp = node_path_1.posix.basename(pp); - do { - if (Buffer.byteLength(pp) <= pathSize && - Buffer.byteLength(prefix) <= prefixSize) { - // both fit! - ret = [pp, prefix, false]; - } - else if (Buffer.byteLength(pp) > pathSize && - Buffer.byteLength(prefix) <= prefixSize) { - // prefix fits in prefix, but path doesn't fit in path - ret = [pp.slice(0, pathSize - 1), prefix, true]; - } - else { - // make path take a bit from prefix - pp = node_path_1.posix.join(node_path_1.posix.basename(prefix), pp); - prefix = node_path_1.posix.dirname(prefix); - } - } while (prefix !== root && ret === undefined); - // at this point, found no resolution, just truncate - if (!ret) { - ret = [p.slice(0, pathSize - 1), '', true]; - } - } - return ret; -}; -const decString = (buf, off, size) => buf - .subarray(off, off + size) - .toString('utf8') - .replace(/\0.*/, ''); -const decDate = (buf, off, size) => numToDate(decNumber(buf, off, size)); -const numToDate = (num) => num === undefined ? undefined : new Date(num * 1000); -const decNumber = (buf, off, size) => Number(buf[off]) & 0x80 ? - large.parse(buf.subarray(off, off + size)) - : decSmallNumber(buf, off, size); -const nanUndef = (value) => (isNaN(value) ? undefined : value); -const decSmallNumber = (buf, off, size) => nanUndef(parseInt(buf - .subarray(off, off + size) - .toString('utf8') - .replace(/\0.*$/, '') - .trim(), 8)); -// the maximum encodable as a null-terminated octal, by field size -const MAXNUM = { - 12: 0o77777777777, - 8: 0o7777777, -}; -const encNumber = (buf, off, size, num) => num === undefined ? false - : num > MAXNUM[size] || num < 0 ? - (large.encode(num, buf.subarray(off, off + size)), true) - : (encSmallNumber(buf, off, size, num), false); -const encSmallNumber = (buf, off, size, num) => buf.write(octalString(num, size), off, size, 'ascii'); -const octalString = (num, size) => padOctal(Math.floor(num).toString(8), size); -const padOctal = (str, size) => (str.length === size - 1 ? - str - : new Array(size - str.length - 1).join('0') + str + ' ') + '\0'; -const encDate = (buf, off, size, date) => date === undefined ? false : (encNumber(buf, off, size, date.getTime() / 1000)); -// enough to fill the longest string we've got -const NULLS = new Array(156).join('\0'); -// pad with nulls, return true if it's longer or non-ascii -const encString = (buf, off, size, str) => str === undefined ? false : ((buf.write(str + NULLS, off, size, 'utf8'), - str.length !== Buffer.byteLength(str) || str.length > size)); -//# sourceMappingURL=header.js.map
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