blockstack
Version:
The Blockstack Javascript library for authentication, identity, and storage.
592 lines (591 loc) • 24.4 kB
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<h1>
<a href="../index.html">All files</a> / <a href="index.html">src</a> utils.ts
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<div class='fl pad1y space-right2'>
<span class="strong">73.68% </span>
<span class="quiet">Statements</span>
<span class='fraction'>42/57</span>
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<span class="strong">82.14% </span>
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<span class='fraction'>23/28</span>
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<span class="strong">85.71% </span>
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<span class='fraction'>12/14</span>
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<span class="strong">72.73% </span>
<span class="quiet">Lines</span>
<span class='fraction'>40/55</span>
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Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">
import url from 'url'
import { ECPair, address, crypto } from 'bitcoinjs-lib'
import { config } from './config'
import { Logger } from './logger'
export const BLOCKSTACK_HANDLER = 'blockstack'
/**
* Time
* @private
*/
export function nextYear() {
return new Date(
new Date().setFullYear(
new Date().getFullYear() + 1
)
)
}
export function nextMonth() {
return new Date(
new Date().setMonth(
new Date().getMonth() + 1
)
)
}
export function nextHour() {
return new Date(
new Date().setHours(
new Date().getHours() + 1
)
)
}
/**
* Query Strings
* @private
*/
export function <span class="fstat-no" title="function not covered" >updateQueryStringParameter(</span>uri: string, key: string, value: string) {
const re = <span class="cstat-no" title="statement not covered" >new RegExp(`([?&])${key}=.*?(&|$)`, 'i')</span>
const separator = <span class="cstat-no" title="statement not covered" >uri.indexOf('?') !== -1 ? '&' : '?'</span>
if (uri.match(re)) {
<span class="cstat-no" title="statement not covered" > return uri.replace(re, `$1${key}=${value}$2`)</span>
} else {
<span class="cstat-no" title="statement not covered" > return `${uri}${separator}${key}=${value}`</span>
}
}
/**
* Versioning
* @param {string} v1 - the left half of the version inequality
* @param {string} v2 - right half of the version inequality
* @returns {bool} iff v1 >= v2
* @private
*/
export function isLaterVersion(v1: string, v2: string) {
if (v1 === undefined) {
v1 = '0.0.0'
}
if (v2 === undefined) {
<span class="cstat-no" title="statement not covered" > v2 = '0.0.0'</span>
}
const v1tuple = v1.split('.').map(x => parseInt(x, 10))
const v2tuple = v2.split('.').map(x => parseInt(x, 10))
for (let index = 0; index < v2.length; index++) {
if (index >= v1.length) {
<span class="cstat-no" title="statement not covered" > v2tuple.push(0)</span>
}
if (v1tuple[index] < v2tuple[index]) {
return false
}
}
return true
}
export function hexStringToECPair(skHex: string) {
const ecPairOptions = {
network: config.network.layer1,
compressed: true
}
if (skHex.length === 66) {
if (skHex.slice(64) !== '01') {
<span class="cstat-no" title="statement not covered" > throw new Error('Improperly formatted private-key hex string. 66-length hex usually '</span>
+ 'indicates compressed key, but last byte must be == 1')
}
return ECPair.fromPrivateKey(Buffer.from(skHex.slice(0, 64), 'hex'), ecPairOptions)
} else if (skHex.length === 64) {
<span class="cstat-no" title="statement not covered" > ecPairOptions.compressed = false</span>
<span class="cstat-no" title="statement not covered" > return ECPair.fromPrivateKey(Buffer.from(skHex, 'hex'), ecPairOptions)</span>
} else {
throw new Error('Improperly formatted private-key hex string: length should be 64 or 66.')
}
}
export function ecPairToHexString(secretKey: ECPair) {
const ecPointHex = secretKey.privateKey.toString('hex')
if (secretKey.compressed) {
return `${ecPointHex}01`
} else {
<span class="cstat-no" title="statement not covered" > return ecPointHex</span>
}
}
export function ecPairToAddress(keyPair: ECPair) {
return address.toBase58Check(crypto.hash160(keyPair.publicKey), keyPair.network.pubKeyHash)
}
/**
* UUIDs
* @private
*/
export function makeUUID4() {
let d = new Date().getTime()
if (typeof performance !== 'undefined' && <span class="branch-1 cbranch-no" title="branch not covered" >typeof performance.now === 'function')</span> {
<span class="cstat-no" title="statement not covered" > d += performance.now() /</span>/ use high-precision timer if available
}
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
const r = (d + Math.random() * 16) % 16 | 0
d = Math.floor(d / 16)
return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16)
})
}
/**
* Checks if both urls pass the same origin check & are absolute
* @param {[type]} uri1 first uri to check
* @param {[type]} uri2 second uri to check
* @return {Boolean} true if they pass the same origin check
* @private
*/
export function isSameOriginAbsoluteUrl(uri1: string, uri2: string) {
const parsedUri1 = url.parse(uri1)
const parsedUri2 = url.parse(uri2)
const port1 = parseInt(parsedUri1.port || '0', 10) | 0 || (parsedUri1.protocol === 'https:' ? 443 : 80)
const port2 = parseInt(parsedUri2.port || '0', 10) | 0 || (parsedUri2.protocol === 'https:' ? 443 : 80)
const match = {
scheme: parsedUri1.protocol === parsedUri2.protocol,
hostname: parsedUri1.hostname === parsedUri2.hostname,
port: port1 === port2,
absolute: (uri1.includes('http://') || uri1.includes('https://'))
&& (uri2.includes('http://') || uri2.includes('https://'))
}
return match.scheme && match.hostname && match.port && match.absolute
}
/**
* Runtime check for the existence of the global `window` object and the
* given API key (name) on `window`. Throws an error if either are not
* available in the current environment.
* @param fnDesc The function name to include in the thrown error and log.
* @param name The name of the key on the `window` object to check for.
* @hidden
*/
export function <span class="fstat-no" title="function not covered" >checkWindowAPI(</span>fnDesc: string, name: string) {
const api = <span class="cstat-no" title="statement not covered" >typeof window !== 'undefined' && window[name]</span>
if (!api) {
const errMsg = <span class="cstat-no" title="statement not covered" >`\`${fnDesc}\` uses the \`window.${name}\` API which is `</span>
+ ' not available in the current environment.'
<span class="cstat-no" title="statement not covered" > Logger.error(errMsg)</span>
<span class="cstat-no" title="statement not covered" > throw new Error(errMsg)</span>
}
}
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