// 调用命令
'use strict';
const Service = require('egg').Service;
const exec = require('child_process').exec;
const fs = require('fs');
class ShellService extends Service {
  async shell(shellString) {
    console.log(shellString, 'shellString');
    return new Promise((resolve, reject) => {
      exec(shellString, function(error, stdout) {
        if (error) {
          reject(error);
        }
        resolve({ errcode: 0, errmsg: '', data: stdout && stdout.trim() });
      });
    });
  }
  // 解析ca证书
  async read({ filePath }) {
    return new Promise((resolve, reject) => {
      exec(`openssl x509 -in ${filePath} -noout -text -certopt no_header,no_version,no_extensions,no_sigdump,no_serial`, function(error, stdout) {
        if (error) {
          reject(error);
        }
        resolve({ errcode: 0, errmsg: '', data: stdout });
      });
    });
  }
  // 创建key
  async applykey({ pwatype, filePath }) {
    return new Promise((resolve, reject) => {
      // 创建密钥对
      exec(`pki --gen --type ${pwatype} ${pwatype === 'rsa' ? '--size 2048' : ''} --outform pem`, function(error, stdout) {
        if (error) {
          reject(error);
        }
        fs.writeFile(filePath, stdout, {}, function(err) {
          if (err) {
            reject(err);
          }
          resolve({ errmsg: '', errcode: 0 });
        });
      });
    });
  }
  async applyreq({ dn, keyPath, filePath }) {
    return new Promise((resolve, reject) => {
      // 创建申请书
      exec(`pki --req --type priv --in ${keyPath} \ --dn ${dn} \ --outform pem`, function(error, stdout) {
        if (error) {
          reject(error);
        }
        fs.writeFile(filePath, stdout, {}, function(err) {
          if (err) {
            fs.unlink(keyPath, function(err) {
              if (err) {
                reject(err);
              }
            });
            reject(err);
          }
          resolve({ errmsg: '', errcode: 0 });
        });
      });
    });
  }
  // 拆出key
  async keys({ fileName, password }) {
    return new Promise((resolve, reject) => {
      exec(`openssl pkcs12 -info -in ${fileName} -nodes -nocerts -password pass:${password}`, function(error, stdout) {
        if (error) {
          reject(error);
        }
        const srart = stdout.indexOf('-----BEGIN PRIVATE KEY-----');
        const data = stdout.slice(srart, stdout.length);
        resolve({ errcode: 0, errmsg: '', data });
      });
    });
  }
  // key格式转换
  async transform({ files, target }) {
    return new Promise((resolve, reject) => {
      exec(`openssl pkcs8 -in ${files}  -traditional -out ${target} -nocrypt`, function(error, stdout) {
        if (error) {
          reject(error);
        }
        resolve({ errcode: 0, errmsg: '', data: stdout });
      });
    });
  }
  // 拆出证书
  async certs({ fileName, password }) {
    return new Promise((resolve, reject) => {
      exec(`openssl pkcs12 -info -in ${fileName} -password pass:${password} -nokeys -clcerts`, function(error, stdout) {
        if (error) {
          reject(error);
        }
        const srart = stdout.indexOf('-----BEGIN CERTIFICATE-----');
        const data = stdout.slice(srart, stdout.length);
        resolve({ errcode: 0, errmsg: '', data });
      });
    });
  }
}
module.exports = ShellService;