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/*! * cookie-session * Copyright(c) 2020 João Moura * MIT Licensed */
import { setCookie, getCookies } from "https://deno.land/std@0.63.0/http/cookie.ts"import { v4 } from "https://deno.land/std@0.63.0/uuid/mod.ts";import { Middleware, IResponse, IRequest, NextFunction } from "./mod.ts"import debug from 'https://raw.githubusercontent.com/rista404/deno-debug/75400f612c8051b1f57ecc5c037df9138507592a/debug.ts'let logger = debug('cookie_session')
type session = {  [key: string]: any}
export interface options {  name?: string,  keys?: string[],  secret?: string,  maxAge?: number,  expires?: Date,  path?: string,  domain?: string,  sameSite?: "Strict" | "Lax" | "None" | undefined,  secure?: boolean,  httpOnly?: boolean,  signed?: boolean,  overwrite?: boolean}
let configurationOptions: options/** * Module exports. * @public *//** * Create a new cookie session middleware. * * @param {object} [options] * @param {boolean} [options.httpOnly=true] * @param {array} [options.keys] * @param {string} [options.name=session] Name of the cookie to use * @param {boolean} [options.overwrite=true] * @param {string} [options.secret] * @param {boolean} [options.signed=true] * @return {function} middleware * @public */
export function cookieSession (options: options): Middleware {  // cookie name  configurationOptions = options  configurationOptions.name = configurationOptions.name || 'mith'
  // secrets  if (!configurationOptions.keys && !configurationOptions.secret) {    throw "You should specify keys or secret properties for the cookie session configuration"  }  configurationOptions.keys = configurationOptions.keys || [configurationOptions.secret || '']    logger('session options %j', configurationOptions) 
  return (req: IRequest, res: IResponse, next: NextFunction) => {    logger('running')    let authString = getCookies(req.serverRequest)[(configurationOptions.name as string)]        let authData: session = {}    logger('authString %s', authString)    if (authString) {      authData = JSON.parse(authString)    }    if (!authData.id) {      authData.id = v4.generate()    }    const handler = {      get: (target: session, property: string): session | string | number => {        if (typeof target[property] === 'object' && target[property] !== null) {          return new Proxy(target[property], handler)        } else {          return target[property];        }      },      set: (target: session, property: string, newValue: session | string | number) => {        target[property] = newValue        setCookie(res, {          name: (configurationOptions.name as string),          value: JSON.stringify(req.session),          ...configurationOptions        })        return true      }    }
    req.session = new Proxy(authData, handler)    next()  }}
export function cookieSessionSave (): Middleware {  return async (req, res, next) => {    logger('Saving session %O', )    logger(JSON.stringify(req.session))    setCookie(res, {      name: (configurationOptions.name as string),      value: JSON.stringify(req.session),      ...configurationOptions    })    next()  }}