// 加密证书
'use strict';

const Controller = require('egg').Controller;
const UUID = require('uuid');
const assert = require('assert');
const filePath = require('../../config/filespath');
class EnccertController extends Controller {
  // 加密证书上传
  async enccertupload() {
    const { ctx } = this;
    // 获取文件流
    const stream = await ctx.getFileStream();
    // 创建uuid
    const uuid = UUID.v1();
    // 获取参数
    const password = stream.fields.password;
    const name = stream.fields.name;
    assert(password, '请输入密码');
    assert(name, '请输入名称');
    // 创建文件名
    const fileName = `${filePath.p12}${uuid}.p12`;
    // 获取数据文件
    const configJson = require(filePath.configJson);
    try {
      // 存储P12文件
      const res = await this.service.fileshandler.upload({ name: fileName, stream });
      // 存储成功
      if (res.errcode === 0) {
        // 拆出key
        const keys = await this.service.shell.keys({ password, fileName });
        // 拆出成功
        if (keys.errcode === 0) {
          // 存储p8文件
          const p8 = await this.service.fileshandler.write({ filePath: `${filePath.keys}${uuid}.p8`, str: keys.data });
          if (p8.errcode === 0) {
            // 转换p8文件
            await this.service.shell.transform({ files: `${filePath.keys}${uuid}.p8`, target: `${filePath.keys}${uuid}.key` });
          }
        }
        // 拆出cer文件
        const certs = await this.service.shell.certs({ password, fileName });
        if (certs.errcode === 0) {
          let dn,
            pwatype;
          // 存储cer文件
          await this.service.fileshandler.write({ filePath: `${filePath.cert}${uuid}.cer`, str: certs.data });
          // 获取cer信息
          const dns = await this.service.shell.read({ filePath: `${filePath.cert}${uuid}.cer` });
          // 获取dn
          if (dns.errcode === 0 && dns.data) {
            dns.data.trim().split('\n').forEach(function(v) {
              if (v.includes('Subject:')) {
                dn = v.replace('Subject:', '');
              }
              if (v.includes('ASN1 OID:')) {
                pwatype = v.replace('ASN1 OID:', '');
              }
            });
          }
          // 制作数据
          configJson.cert.push({ uuid, pwatype, dn, name, state: 1 });
          const jsonstr = JSON.stringify(configJson);
          // 存储数据文件写入
          await this.service.fileshandler.write({ filePath: filePath.configJson, str: jsonstr });
          ctx.body = { errcode: 0, errmsg: '' };
        }
      }
    } catch (error) {
      const body = { errcode: -1002, errmsg: '证书上传失败', error };
      throw new Error(JSON.stringify(body));
    }
  }
}

module.exports = EnccertController;