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import { clsx, type ClassValue } from 'clsx'
import { customAlphabet } from 'nanoid'
import { twMerge } from 'tailwind-merge'
export function cn(...inputs: ClassValue[]) {
return twMerge(clsx(inputs))
}
export const nanoid = customAlphabet(
'0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz',
7
) // 7-character random string
export function createChunkDecoder() {
const decoder = new TextDecoder()
return function (chunk: Uint8Array | undefined): string {
if (!chunk) return ''
return decoder.decode(chunk, { stream: true })
}
}
export function random (start: number, end: number) {
return start + Math.ceil(Math.random() * (end - start))
}
export function randomIP() {
return `11.${random(104, 107)}.${random(1, 255)}.${random(1, 255)}`
}
export function parseHeadersFromCurl(content: string) {
const re = /-H '([^:]+):\s*([^']+)/mg
const headers: HeadersInit = {}
content = content.replaceAll('-H "', '-H \'').replaceAll('" ^', '\'\\').replaceAll('^\\^"', '"') // 将 cmd curl 转成 bash curl
content.replace(re, (_: string, key: string, value: string) => {
headers[key] = value
return ''
})
return headers
}
export const ChunkKeys = ['BING_HEADER', 'BING_HEADER1', 'BING_HEADER2']
export function encodeHeadersToCookie(content: string) {
const base64Content = btoa(content)
const contentChunks = base64Content.match(/.{1,4000}/g) || []
return ChunkKeys.map((key, index) => `${key}=${contentChunks[index] ?? ''}`)
}
export function extraCurlFromCookie(cookies: Partial<{ [key: string]: string }>) {
let base64Content = ''
ChunkKeys.forEach((key) => {
base64Content += (cookies[key] || '')
})
try {
return atob(base64Content)
} catch(e) {
return ''
}
}
export function extraHeadersFromCookie(cookies: Partial<{ [key: string]: string }>) {
return parseHeadersFromCurl(extraCurlFromCookie(cookies))
}
export function formatDate(input: string | number | Date): string {
const date = new Date(input)
return date.toLocaleDateString('en-US', {
month: 'long',
day: 'numeric',
year: 'numeric'
})
}
export function parseCookie(cookie: string, cookieName: string) {
const targetCookie = new RegExp(`(?:[; ]|^)${cookieName}=([^;]*)`).test(cookie) ? RegExp.$1 : cookie
return targetCookie ? decodeURIComponent(targetCookie).trim() : cookie.indexOf('=') === -1 ? cookie.trim() : ''
}
export function parseCookies(cookie: string, cookieNames: string[]) {
const cookies: { [key: string]: string } = {}
cookieNames.forEach(cookieName => {
cookies[cookieName] = parseCookie(cookie, cookieName)
})
return cookies
}
export const DEFAULT_UA = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 Edg/115.0.0.0'
export const DEFAULT_IP = process.env.BING_IP || randomIP()
export function parseUA(ua?: string, default_ua = DEFAULT_UA) {
return / EDGE?/i.test(decodeURIComponent(ua || '')) ? decodeURIComponent(ua!.trim()) : default_ua
}
export function createHeaders(cookies: Partial<{ [key: string]: string }>, defaultHeaders?: Partial<{ [key: string]: string }>) {
let {
BING_COOKIE = process.env.BING_COOKIE,
BING_UA = process.env.BING_UA,
BING_IP = process.env.BING_IP,
BING_HEADER = process.env.BING_HEADER,
} = cookies
if (BING_HEADER) {
return extraHeadersFromCookie({
BING_HEADER,
...cookies,
})
}
const ua = parseUA(BING_UA)
if (!BING_COOKIE) {
BING_COOKIE = defaultHeaders?.IMAGE_BING_COOKIE || 'xxx' // hf 暂时不用 Cookie 也可以正常使用
}
const parsedCookie = parseCookie(BING_COOKIE, '_U')
if (!parsedCookie) {
throw new Error('Invalid Cookie')
}
return {
'x-forwarded-for': BING_IP || DEFAULT_IP,
'Accept-Encoding': 'gzip, deflate, br',
'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',
'User-Agent': ua!,
'x-ms-useragent': 'azsdk-js-api-client-factory/1.0.0-beta.1 core-rest-pipeline/1.10.0 OS/Win32',
cookie: `_U=${parsedCookie}` || '',
}
}
export class WatchDog {
private tid = 0
watch(fn: Function, timeout = 2000) {
clearTimeout(this.tid)
this.tid = setTimeout(fn, timeout + Math.random() * 1000)
}
reset() {
clearTimeout(this.tid)
}
}
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