Top 10 Examples of "cfb in functional component" in JavaScript
Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'cfb' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
/* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* eslint-env node */
/* vim: set ts=2 ft=javascript: */
const n = "cfb";
import * as X from 'cfb';
import fs = require('fs');
import program = require('commander');
import PRINTJ = require("printj");
const sprintf = PRINTJ.sprintf;
program
.version(X.version)
.usage('[options] [subfiles...]')
.option('-q, --quiet', 'process but do not report')
.option('-l, --list-files', 'list files')
.option('-z, --dump', 'dump internal representation but do not extract')
.option('-r, --repair', 'attempt to repair and garbage-collect archive')
.option('-c, --create', 'create file')
.option('-a, --append', 'add files to CFB (overwrite existing data)')
.option('-d, --delete', 'delete files from CFB')
.option('--dev', 'development mode')
.option('--read', 'read but do not print out contents');
program.parse(process.argv);
const exit = process.exit;
const die = (errno: number, msg: string) => { console.error(n + ": " + msg); exit(errno); };
const logit = (cmd: string, f: string) => { console.error(sprintf("%-6s %s", cmd, f)); };encryptionInfo.key.cipherAlgorithm,
encryptionInfo.key.cipherChaining,
verifierHashValueKey,
encryptionInfo.key.saltValue,
verifierHashValue
);
// Build the encryption info buffer
const encryptionInfoBuffer = this._buildEncryptionInfo(encryptionInfo);
// Create a new CFB
let output = cfb.utils.cfb_new();
// Add the encryption info and encrypted package
cfb.utils.cfb_add(output, "EncryptionInfo", encryptionInfoBuffer);
cfb.utils.cfb_add(output, "EncryptedPackage", encryptedPackage);
// Delete the SheetJS entry that is added at initialization
cfb.utils.cfb_del(output, "\u0001Sh33tJ5");
// Write to a buffer and return
output = cfb.write(output);
// The cfb library writes to a Uint8array in the browser. Convert to a Buffer.
if (!Buffer.isBuffer(output)) output = Buffer.from(output);
return output;
}// Use the key to encrypt the hash value
encryptionInfo.key.encryptedVerifierHashValue = this._crypt(
true,
encryptionInfo.key.cipherAlgorithm,
encryptionInfo.key.cipherChaining,
verifierHashValueKey,
encryptionInfo.key.saltValue,
verifierHashValue
);
// Build the encryption info buffer
const encryptionInfoBuffer = this._buildEncryptionInfo(encryptionInfo);
// Create a new CFB
let output = cfb.utils.cfb_new();
// Add the encryption info and encrypted package
cfb.utils.cfb_add(output, "EncryptionInfo", encryptionInfoBuffer);
cfb.utils.cfb_add(output, "EncryptedPackage", encryptedPackage);
// Delete the SheetJS entry that is added at initialization
cfb.utils.cfb_del(output, "\u0001Sh33tJ5");
// Write to a buffer and return
output = cfb.write(output);
// The cfb library writes to a Uint8array in the browser. Convert to a Buffer.
if (!Buffer.isBuffer(output)) output = Buffer.from(output);
return output;
}decryptAsync(data, password) {
// Parse the CFB input and pull out the encryption info and encrypted package entries.
const parsed = cfb.parse(data);
let encryptionInfoBuffer = _.find(parsed.FileIndex, { name: "EncryptionInfo" }).content;
let encryptedPackageBuffer = _.find(parsed.FileIndex, { name: "EncryptedPackage" }).content;
// In the browser the CFB content is an array. Convert to a Buffer.
if (!Buffer.isBuffer(encryptionInfoBuffer)) encryptionInfoBuffer = Buffer.from(encryptionInfoBuffer);
if (!Buffer.isBuffer(encryptedPackageBuffer)) encryptedPackageBuffer = Buffer.from(encryptedPackageBuffer);
return externals.Promise.resolve()
.then(() => this._parseEncryptionInfoAsync(encryptionInfoBuffer)) // Parse the encryption info XML into an object
.then(encryptionInfo => {
// Convert the password into an encryption key
const key = this._convertPasswordToKey(
password,
encryptionInfo.key.hashAlgorithm,
encryptionInfo.key.saltValue,
encryptionInfo.key.spinCount,// Build the encryption info buffer
const encryptionInfoBuffer = this._buildEncryptionInfo(encryptionInfo);
// Create a new CFB
let output = cfb.utils.cfb_new();
// Add the encryption info and encrypted package
cfb.utils.cfb_add(output, "EncryptionInfo", encryptionInfoBuffer);
cfb.utils.cfb_add(output, "EncryptedPackage", encryptedPackage);
// Delete the SheetJS entry that is added at initialization
cfb.utils.cfb_del(output, "\u0001Sh33tJ5");
// Write to a buffer and return
output = cfb.write(output);
// The cfb library writes to a Uint8array in the browser. Convert to a Buffer.
if (!Buffer.isBuffer(output)) output = Buffer.from(output);
return output;
}.option('-a, --append', 'add files to CFB (overwrite existing data)')
.option('-d, --delete', 'delete files from CFB')
.option('--dev', 'development mode')
.option('--read', 'read but do not print out contents');
program.parse(process.argv);
const exit = process.exit;
const die = (errno: number, msg: string) => { console.error(n + ": " + msg); exit(errno); };
const logit = (cmd: string, f: string) => { console.error(sprintf("%-6s %s", cmd, f)); };
if(program.args.length === 0) die(1, "must specify a filename");
if(program.create) {
logit("create", program.args[0]);
const newcfb = X.utils.cfb_new();
X.writeFile(newcfb, program.args[0]);
}
if(!fs.existsSync(program.args[0])) die(1, "must specify a filename");
const opts: X.CFB$ParsingOptions = {type:'file'};
if(program.dev) opts.WTF = true;
const cfb: X.CFB$Container = X.read(program.args[0], opts);
if(program.quiet) exit(0);
if(program.dump) {
console.log("Full Paths:");
console.log(cfb.FullPaths.map((x) => " " + x).join("\n"));
console.log("File Index:");
console.log(cfb.FileIndex);.option('-d, --delete', 'delete files from CFB')
.option('--dev', 'development mode')
.option('--read', 'read but do not print out contents');
program.parse(process.argv);
const exit = process.exit;
const die = (errno: number, msg: string) => { console.error(n + ": " + msg); exit(errno); };
const logit = (cmd: string, f: string) => { console.error(sprintf("%-6s %s", cmd, f)); };
if(program.args.length === 0) die(1, "must specify a filename");
if(program.create) {
logit("create", program.args[0]);
const newcfb = X.utils.cfb_new();
X.writeFile(newcfb, program.args[0]);
}
if(!fs.existsSync(program.args[0])) die(1, "must specify a filename");
const opts: X.CFB$ParsingOptions = {type:'file'};
if(program.dev) opts.WTF = true;
const cfb: X.CFB$Container = X.read(program.args[0], opts);
if(program.quiet) exit(0);
if(program.dump) {
console.log("Full Paths:");
console.log(cfb.FullPaths.map((x) => " " + x).join("\n"));
console.log("File Index:");
console.log(cfb.FileIndex);
exit(0);if(!fs.existsSync(program.args[0])) die(1, "must specify a filename");
const opts: X.CFB$ParsingOptions = {type:'file'};
if(program.dev) opts.WTF = true;
const cfb: X.CFB$Container = X.read(program.args[0], opts);
if(program.quiet) exit(0);
if(program.dump) {
console.log("Full Paths:");
console.log(cfb.FullPaths.map((x) => " " + x).join("\n"));
console.log("File Index:");
console.log(cfb.FileIndex);
exit(0);
}
if(program.repair) { X.writeFile(cfb, program.args[0]); exit(0); }
const fix_string = (x: string): string => x.replace(/[\u0000-\u001f]/, ($$) => sprintf("\\u%04X", $$.charCodeAt(0)));
const format_date = (date: Date): string => {
return sprintf("%02u-%02u-%02u %02u:%02u", date.getUTCMonth()+1, date.getUTCDate(), date.getUTCFullYear()%100, date.getUTCHours(), date.getUTCMinutes());
};
if(program.listFiles) {
let basetime = new Date(1980,0,1);
let cnt = 0, rootsize = 0, filesize = 0;
console.log(" Length Date Time Name");
console.log(" -------- ---- ---- ----");
cfb.FileIndex.forEach((file: X.CFB$Entry, i: number) => {
switch(file.type) {
case 5:
basetime = file.ct || file.mt || basetime;
rootsize = file.size;program.args.slice(1).forEach((x: string) => {
const data: X.CFB$Entry = X.find(cfb, x);
if(!data) { console.error(x + ": file not found"); return; }
if(data.type !== 2) { console.error(x + ": not a file"); return; }
const idx = cfb.FileIndex.indexOf(data), path = cfb.FullPaths[idx];
mkdirp(path.slice(0, path.lastIndexOf("/")));
write(path, data);
});
exit(0);const logit = (cmd: string, f: string) => { console.error(sprintf("%-6s %s", cmd, f)); };
if(program.args.length === 0) die(1, "must specify a filename");
if(program.create) {
logit("create", program.args[0]);
const newcfb = X.utils.cfb_new();
X.writeFile(newcfb, program.args[0]);
}
if(!fs.existsSync(program.args[0])) die(1, "must specify a filename");
const opts: X.CFB$ParsingOptions = {type:'file'};
if(program.dev) opts.WTF = true;
const cfb: X.CFB$Container = X.read(program.args[0], opts);
if(program.quiet) exit(0);
if(program.dump) {
console.log("Full Paths:");
console.log(cfb.FullPaths.map((x) => " " + x).join("\n"));
console.log("File Index:");
console.log(cfb.FileIndex);
exit(0);
}
if(program.repair) { X.writeFile(cfb, program.args[0]); exit(0); }
const fix_string = (x: string): string => x.replace(/[\u0000-\u001f]/, ($$) => sprintf("\\u%04X", $$.charCodeAt(0)));
const format_date = (date: Date): string => {
return sprintf("%02u-%02u-%02u %02u:%02u", date.getUTCMonth()+1, date.getUTCDate(), date.getUTCFullYear()%100, date.getUTCHours(), date.getUTCMinutes());
};