// 证书链
'use strict';

const Controller = require('egg').Controller;
const UUID = require('uuid');
const filePath = require('../../config/filespath');
class CAcertController extends Controller {
  async caupload() {
    const { ctx } = this;
    const configJson = require(filePath.configJson);
    const uuid = UUID.v1();
    // 获取数据流
    const stream = await ctx.getFileStream();
    // 路径 + 文件名
    const name = `${filePath.CAcert}${uuid}.cer`;
    try {
      // 文件存储
      const files = await this.service.fileshandler.upload({ name, stream });
      if (files.errcode === 0) {
        // 解析证书
        const dns = await this.service.shell.read({ filePath: name });
        let dn;
        if (dns.errcode === 0 && dns.data) {
          dns.data.trim().split('\n').forEach(function(v) {
            if (v.includes('Subject:')) {
              dn = v.replace('Subject:', '');
            }
          });
          const form = { uuid, dn };
          configJson.ca.push(form);
          const jsonstr = JSON.stringify(configJson);
          // 存储数据
          await this.service.fileshandler.write({ filePath: filePath.configJson, str: jsonstr });
          this.ctx.body = { errcode: 0, errmsg: '' };
        }
      }
    } catch (error) {
      const body = { errcode: -1011, errmsg: '证书上传失败', error };
      throw new Error(JSON.stringify(body));
    }
  }
  // 删除ca证书
  async cadelete() {
    const uuid = this.ctx.query.uuid;
    const configJson = require(filePath.configJson);
    // 过滤掉当前uuid数据
    const data = configJson.ca.filter(p => p.uuid !== uuid);
    configJson.ca = data;
    const jsonstr = JSON.stringify(configJson);
    try {
      // 存储到数据文件
      await this.service.fileshandler.write({ filePath: filePath.configJson, str: jsonstr });
      // 删除证书文件
      const res = await this.service.fileshandler.filesDel(`${filePath.CAcert}${uuid}.cer`);
      if (res.errcode === 0) {
        this.ctx.body = { errcode: 0, errmsg: '' };
      } else {
        throw new Error(res);
      }
    } catch (error) {
      const body = { errcode: -1012, errmsg: '证书删除失败', error };
      throw new Error(JSON.stringify(body));
    }
  }
  // 查询ca信息
  async caquery() {
    const { ctx } = this;
    const configJson = require(filePath.configJson);
    const data = configJson.ca;
    ctx.body = { errcode: 0, errmsg: '', data };
  }
  // ca证书下载
  async cacertdownload() {
    try {
      const uuid = this.ctx.query.uuid;
      const cafilePath = `${filePath.CAcert}${uuid}.cer`;
      const res = await this.service.fileshandler.download({ filePath: cafilePath });
      this.ctx.body = res;
    } catch (error) {
      const body = { errcode: -1013, errmsg: '证书下载失败', error };
      throw new Error(JSON.stringify(body));
    }
  }
}

module.exports = CAcertController;