From 291803c31f829fe0d32bb3207bc11def95a7408c Mon Sep 17 00:00:00 2001 From: Nevena Bojovic Date: Tue, 1 Mar 2022 20:05:50 +0100 Subject: Urađena test aplikacija. Povezan front i back. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../Front/node_modules/tar/lib/write-entry.js | 525 +++++++++++++++++++++ 1 file changed, 525 insertions(+) create mode 100644 sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js (limited to 'sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js') diff --git a/sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js b/sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js new file mode 100644 index 00000000..3702f2ae --- /dev/null +++ b/sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js @@ -0,0 +1,525 @@ +'use strict' +const MiniPass = require('minipass') +const Pax = require('./pax.js') +const Header = require('./header.js') +const fs = require('fs') +const path = require('path') +const normPath = require('./normalize-windows-path.js') +const stripSlash = require('./strip-trailing-slashes.js') + +const prefixPath = (path, prefix) => { + if (!prefix) + return normPath(path) + path = normPath(path).replace(/^\.(\/|$)/, '') + return stripSlash(prefix) + '/' + path +} + +const maxReadSize = 16 * 1024 * 1024 +const PROCESS = Symbol('process') +const FILE = Symbol('file') +const DIRECTORY = Symbol('directory') +const SYMLINK = Symbol('symlink') +const HARDLINK = Symbol('hardlink') +const HEADER = Symbol('header') +const READ = Symbol('read') +const LSTAT = Symbol('lstat') +const ONLSTAT = Symbol('onlstat') +const ONREAD = Symbol('onread') +const ONREADLINK = Symbol('onreadlink') +const OPENFILE = Symbol('openfile') +const ONOPENFILE = Symbol('onopenfile') +const CLOSE = Symbol('close') +const MODE = Symbol('mode') +const AWAITDRAIN = Symbol('awaitDrain') +const ONDRAIN = Symbol('ondrain') +const PREFIX = Symbol('prefix') +const HAD_ERROR = Symbol('hadError') +const warner = require('./warn-mixin.js') +const winchars = require('./winchars.js') +const stripAbsolutePath = require('./strip-absolute-path.js') + +const modeFix = require('./mode-fix.js') + +const WriteEntry = warner(class WriteEntry extends MiniPass { + constructor (p, opt) { + opt = opt || {} + super(opt) + if (typeof p !== 'string') + throw new TypeError('path is required') + this.path = normPath(p) + // suppress atime, ctime, uid, gid, uname, gname + this.portable = !!opt.portable + // until node has builtin pwnam functions, this'll have to do + this.myuid = process.getuid && process.getuid() || 0 + this.myuser = process.env.USER || '' + this.maxReadSize = opt.maxReadSize || maxReadSize + this.linkCache = opt.linkCache || new Map() + this.statCache = opt.statCache || new Map() + this.preservePaths = !!opt.preservePaths + this.cwd = normPath(opt.cwd || process.cwd()) + this.strict = !!opt.strict + this.noPax = !!opt.noPax + this.noMtime = !!opt.noMtime + this.mtime = opt.mtime || null + this.prefix = opt.prefix ? normPath(opt.prefix) : null + + this.fd = null + this.blockLen = null + this.blockRemain = null + this.buf = null + this.offset = null + this.length = null + this.pos = null + this.remain = null + + if (typeof opt.onwarn === 'function') + this.on('warn', opt.onwarn) + + let pathWarn = false + if (!this.preservePaths) { + const [root, stripped] = stripAbsolutePath(this.path) + if (root) { + this.path = stripped + pathWarn = root + } + } + + this.win32 = !!opt.win32 || process.platform === 'win32' + if (this.win32) { + // force the \ to / normalization, since we might not *actually* + // be on windows, but want \ to be considered a path separator. + this.path = winchars.decode(this.path.replace(/\\/g, '/')) + p = p.replace(/\\/g, '/') + } + + this.absolute = normPath(opt.absolute || path.resolve(this.cwd, p)) + + if (this.path === '') + this.path = './' + + if (pathWarn) { + this.warn('TAR_ENTRY_INFO', `stripping ${pathWarn} from absolute path`, { + entry: this, + path: pathWarn + this.path, + }) + } + + if (this.statCache.has(this.absolute)) + this[ONLSTAT](this.statCache.get(this.absolute)) + else + this[LSTAT]() + } + + emit (ev, ...data) { + if (ev === 'error') + this[HAD_ERROR] = true + return super.emit(ev, ...data) + } + + [LSTAT] () { + fs.lstat(this.absolute, (er, stat) => { + if (er) + return this.emit('error', er) + this[ONLSTAT](stat) + }) + } + + [ONLSTAT] (stat) { + this.statCache.set(this.absolute, stat) + this.stat = stat + if (!stat.isFile()) + stat.size = 0 + this.type = getType(stat) + this.emit('stat', stat) + this[PROCESS]() + } + + [PROCESS] () { + switch (this.type) { + case 'File': return this[FILE]() + case 'Directory': return this[DIRECTORY]() + case 'SymbolicLink': return this[SYMLINK]() + // unsupported types are ignored. + default: return this.end() + } + } + + [MODE] (mode) { + return modeFix(mode, this.type === 'Directory', this.portable) + } + + [PREFIX] (path) { + return prefixPath(path, this.prefix) + } + + [HEADER] () { + if (this.type === 'Directory' && this.portable) + this.noMtime = true + + this.header = new Header({ + path: this[PREFIX](this.path), + // only apply the prefix to hard links. + linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath) + : this.linkpath, + // only the permissions and setuid/setgid/sticky bitflags + // not the higher-order bits that specify file type + mode: this[MODE](this.stat.mode), + uid: this.portable ? null : this.stat.uid, + gid: this.portable ? null : this.stat.gid, + size: this.stat.size, + mtime: this.noMtime ? null : this.mtime || this.stat.mtime, + type: this.type, + uname: this.portable ? null : + this.stat.uid === this.myuid ? this.myuser : '', + atime: this.portable ? null : this.stat.atime, + ctime: this.portable ? null : this.stat.ctime, + }) + + if (this.header.encode() && !this.noPax) { + super.write(new Pax({ + atime: this.portable ? null : this.header.atime, + ctime: this.portable ? null : this.header.ctime, + gid: this.portable ? null : this.header.gid, + mtime: this.noMtime ? null : this.mtime || this.header.mtime, + path: this[PREFIX](this.path), + linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath) + : this.linkpath, + size: this.header.size, + uid: this.portable ? null : this.header.uid, + uname: this.portable ? null : this.header.uname, + dev: this.portable ? null : this.stat.dev, + ino: this.portable ? null : this.stat.ino, + nlink: this.portable ? null : this.stat.nlink, + }).encode()) + } + super.write(this.header.block) + } + + [DIRECTORY] () { + if (this.path.substr(-1) !== '/') + this.path += '/' + this.stat.size = 0 + this[HEADER]() + this.end() + } + + [SYMLINK] () { + fs.readlink(this.absolute, (er, linkpath) => { + if (er) + return this.emit('error', er) + this[ONREADLINK](linkpath) + }) + } + + [ONREADLINK] (linkpath) { + this.linkpath = normPath(linkpath) + this[HEADER]() + this.end() + } + + [HARDLINK] (linkpath) { + this.type = 'Link' + this.linkpath = normPath(path.relative(this.cwd, linkpath)) + this.stat.size = 0 + this[HEADER]() + this.end() + } + + [FILE] () { + if (this.stat.nlink > 1) { + const linkKey = this.stat.dev + ':' + this.stat.ino + if (this.linkCache.has(linkKey)) { + const linkpath = this.linkCache.get(linkKey) + if (linkpath.indexOf(this.cwd) === 0) + return this[HARDLINK](linkpath) + } + this.linkCache.set(linkKey, this.absolute) + } + + this[HEADER]() + if (this.stat.size === 0) + return this.end() + + this[OPENFILE]() + } + + [OPENFILE] () { + fs.open(this.absolute, 'r', (er, fd) => { + if (er) + return this.emit('error', er) + this[ONOPENFILE](fd) + }) + } + + [ONOPENFILE] (fd) { + this.fd = fd + if (this[HAD_ERROR]) + return this[CLOSE]() + + this.blockLen = 512 * Math.ceil(this.stat.size / 512) + this.blockRemain = this.blockLen + const bufLen = Math.min(this.blockLen, this.maxReadSize) + this.buf = Buffer.allocUnsafe(bufLen) + this.offset = 0 + this.pos = 0 + this.remain = this.stat.size + this.length = this.buf.length + this[READ]() + } + + [READ] () { + const { fd, buf, offset, length, pos } = this + fs.read(fd, buf, offset, length, pos, (er, bytesRead) => { + if (er) { + // ignoring the error from close(2) is a bad practice, but at + // this point we already have an error, don't need another one + return this[CLOSE](() => this.emit('error', er)) + } + this[ONREAD](bytesRead) + }) + } + + [CLOSE] (cb) { + fs.close(this.fd, cb) + } + + [ONREAD] (bytesRead) { + if (bytesRead <= 0 && this.remain > 0) { + const er = new Error('encountered unexpected EOF') + er.path = this.absolute + er.syscall = 'read' + er.code = 'EOF' + return this[CLOSE](() => this.emit('error', er)) + } + + if (bytesRead > this.remain) { + const er = new Error('did not encounter expected EOF') + er.path = this.absolute + er.syscall = 'read' + er.code = 'EOF' + return this[CLOSE](() => this.emit('error', er)) + } + + // null out the rest of the buffer, if we could fit the block padding + // at the end of this loop, we've incremented bytesRead and this.remain + // to be incremented up to the blockRemain level, as if we had expected + // to get a null-padded file, and read it until the end. then we will + // decrement both remain and blockRemain by bytesRead, and know that we + // reached the expected EOF, without any null buffer to append. + if (bytesRead === this.remain) { + for (let i = bytesRead; i < this.length && bytesRead < this.blockRemain; i++) { + this.buf[i + this.offset] = 0 + bytesRead++ + this.remain++ + } + } + + const writeBuf = this.offset === 0 && bytesRead === this.buf.length ? + this.buf : this.buf.slice(this.offset, this.offset + bytesRead) + + const flushed = this.write(writeBuf) + if (!flushed) + this[AWAITDRAIN](() => this[ONDRAIN]()) + else + this[ONDRAIN]() + } + + [AWAITDRAIN] (cb) { + this.once('drain', cb) + } + + write (writeBuf) { + if (this.blockRemain < writeBuf.length) { + const er = new Error('writing more data than expected') + er.path = this.absolute + return this.emit('error', er) + } + this.remain -= writeBuf.length + this.blockRemain -= writeBuf.length + this.pos += writeBuf.length + this.offset += writeBuf.length + return super.write(writeBuf) + } + + [ONDRAIN] () { + if (!this.remain) { + if (this.blockRemain) + super.write(Buffer.alloc(this.blockRemain)) + return this[CLOSE](er => er ? this.emit('error', er) : this.end()) + } + + if (this.offset >= this.length) { + // if we only have a smaller bit left to read, alloc a smaller buffer + // otherwise, keep it the same length it was before. + this.buf = Buffer.allocUnsafe(Math.min(this.blockRemain, this.buf.length)) + this.offset = 0 + } + this.length = this.buf.length - this.offset + this[READ]() + } +}) + +class WriteEntrySync extends WriteEntry { + [LSTAT] () { + this[ONLSTAT](fs.lstatSync(this.absolute)) + } + + [SYMLINK] () { + this[ONREADLINK](fs.readlinkSync(this.absolute)) + } + + [OPENFILE] () { + this[ONOPENFILE](fs.openSync(this.absolute, 'r')) + } + + [READ] () { + let threw = true + try { + const { fd, buf, offset, length, pos } = this + const bytesRead = fs.readSync(fd, buf, offset, length, pos) + this[ONREAD](bytesRead) + threw = false + } finally { + // ignoring the error from close(2) is a bad practice, but at + // this point we already have an error, don't need another one + if (threw) { + try { + this[CLOSE](() => {}) + } catch (er) {} + } + } + } + + [AWAITDRAIN] (cb) { + cb() + } + + [CLOSE] (cb) { + fs.closeSync(this.fd) + cb() + } +} + +const WriteEntryTar = warner(class WriteEntryTar extends MiniPass { + constructor (readEntry, opt) { + opt = opt || {} + super(opt) + this.preservePaths = !!opt.preservePaths + this.portable = !!opt.portable + this.strict = !!opt.strict + this.noPax = !!opt.noPax + this.noMtime = !!opt.noMtime + + this.readEntry = readEntry + this.type = readEntry.type + if (this.type === 'Directory' && this.portable) + this.noMtime = true + + this.prefix = opt.prefix || null + + this.path = normPath(readEntry.path) + this.mode = this[MODE](readEntry.mode) + this.uid = this.portable ? null : readEntry.uid + this.gid = this.portable ? null : readEntry.gid + this.uname = this.portable ? null : readEntry.uname + this.gname = this.portable ? null : readEntry.gname + this.size = readEntry.size + this.mtime = this.noMtime ? null : opt.mtime || readEntry.mtime + this.atime = this.portable ? null : readEntry.atime + this.ctime = this.portable ? null : readEntry.ctime + this.linkpath = normPath(readEntry.linkpath) + + if (typeof opt.onwarn === 'function') + this.on('warn', opt.onwarn) + + let pathWarn = false + if (!this.preservePaths) { + const [root, stripped] = stripAbsolutePath(this.path) + if (root) { + this.path = stripped + pathWarn = root + } + } + + this.remain = readEntry.size + this.blockRemain = readEntry.startBlockSize + + this.header = new Header({ + path: this[PREFIX](this.path), + linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath) + : this.linkpath, + // only the permissions and setuid/setgid/sticky bitflags + // not the higher-order bits that specify file type + mode: this.mode, + uid: this.portable ? null : this.uid, + gid: this.portable ? null : this.gid, + size: this.size, + mtime: this.noMtime ? null : this.mtime, + type: this.type, + uname: this.portable ? null : this.uname, + atime: this.portable ? null : this.atime, + ctime: this.portable ? null : this.ctime, + }) + + if (pathWarn) { + this.warn('TAR_ENTRY_INFO', `stripping ${pathWarn} from absolute path`, { + entry: this, + path: pathWarn + this.path, + }) + } + + if (this.header.encode() && !this.noPax) { + super.write(new Pax({ + atime: this.portable ? null : this.atime, + ctime: this.portable ? null : this.ctime, + gid: this.portable ? null : this.gid, + mtime: this.noMtime ? null : this.mtime, + path: this[PREFIX](this.path), + linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath) + : this.linkpath, + size: this.size, + uid: this.portable ? null : this.uid, + uname: this.portable ? null : this.uname, + dev: this.portable ? null : this.readEntry.dev, + ino: this.portable ? null : this.readEntry.ino, + nlink: this.portable ? null : this.readEntry.nlink, + }).encode()) + } + + super.write(this.header.block) + readEntry.pipe(this) + } + + [PREFIX] (path) { + return prefixPath(path, this.prefix) + } + + [MODE] (mode) { + return modeFix(mode, this.type === 'Directory', this.portable) + } + + write (data) { + const writeLen = data.length + if (writeLen > this.blockRemain) + throw new Error('writing more to entry than is appropriate') + this.blockRemain -= writeLen + return super.write(data) + } + + end () { + if (this.blockRemain) + super.write(Buffer.alloc(this.blockRemain)) + return super.end() + } +}) + +WriteEntry.Sync = WriteEntrySync +WriteEntry.Tar = WriteEntryTar + +const getType = stat => + stat.isFile() ? 'File' + : stat.isDirectory() ? 'Directory' + : stat.isSymbolicLink() ? 'SymbolicLink' + : 'Unsupported' + +module.exports = WriteEntry -- cgit v1.2.3