项目链接： https://gitee.com/hyhe/httpLibraryDemo.git

一、文件介绍

Demo使用RSA加签，对请求数据进行aes加密。使用泛型进行数据处理。根据项目加解密要求不同，需要自行修改。

httpLibrary树状结构.png

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二、加解密

1、AES加解密

1.1 aes 生成IVParamsSpec

static genIvParamsSpec() {   let arr = new Uint8Array(buffer.from(aesIV, 'utf-8').buffer); // 16 bytes   let dataIv = new Uint8Array(arr);   let ivBlob: cryptoFramework.DataBlob = { data: dataIv };   let ivParamsSpec: cryptoFramework.IvParamsSpec = {     iv: ivBlob,     algName: "IvParamsSpec"   };   return ivParamsSpec; }

1.2 aes 生成器随机生成的密钥

static genSymKeyByData(symKeyData: Uint8Array) {   let symKeyBlob: cryptoFramework.DataBlob = { data: symKeyData };   let aesGenerator = cryptoFramework.createSymKeyGenerator('AES128');   let symKey = aesGenerator.convertKeySync(symKeyBlob);   console.info('convertKey success');   return symKey; }

1.3 aes 加密

// 加密消息 static encryptMessage(message: string, aesKey: string = aesKeyStr) {   let keyData = new Uint8Array(buffer.from(aesKey, 'utf-8').buffer);   let symKey = AesUtil.genSymKeyByData(keyData);   let plainText: cryptoFramework.DataBlob = { data: new Uint8Array(buffer.from(message, 'utf-8').buffer)};   let cipher = cryptoFramework.createCipher(AesUtil.cipherName);   let ivParam = AesUtil.genIvParamsSpec();   cipher.initSync(cryptoFramework.CryptoMode.ENCRYPT_MODE, symKey, ivParam);   let cipherData = cipher.doFinalSync(plainText);   let encryptResult = buffer.from(cipherData.data).toString('hex')   return encryptResult; }

1.4 aes 解密

static decryptMessage(message: string, aesKey: string = aesKeyStr): string {   let keyData = new Uint8Array(buffer.from(aesKey, 'utf-8').buffer);   let symKey = AesUtil.genSymKeyByData(keyData);   let cipherText: cryptoFramework.DataBlob = { data: new Uint8Array(buffer.from(message, 'hex').buffer)};   let decoder = cryptoFramework.createCipher(AesUtil.cipherName);   let iv = AesUtil.genIvParamsSpec();   decoder.initSync(cryptoFramework.CryptoMode.DECRYPT_MODE, symKey, iv);   let decryptData = decoder.doFinalSync(cipherText);   let decryptResult = buffer.from(decryptData.data).toString('utf-8')   let base64Helper = new util.Base64Helper();   let array = new Uint8Array(decryptData.data);   let decodeStr = base64Helper.decodeSync(array);   return decryptResult; }

2. RSA 加解密

2.1 生成RSA秘钥对

// 生成RSA密钥对 static genKeyPairByData(pubKeyData: Uint8Array | null, priKeyData: Uint8Array | null) {   let pubKeyBlob: cryptoFramework.DataBlob = { data: pubKeyData == null ? new Uint8Array(buffer.from("", 'utf-8').buffer) : pubKeyData };   let priKeyBlob: cryptoFramework.DataBlob = { data: priKeyData == null ? new Uint8Array(buffer.from("", 'utf-8').buffer) : priKeyData };   let rsaGenerator = cryptoFramework.createAsyKeyGenerator('RSA1024');   let keyPair = rsaGenerator.convertKeySync(pubKeyData == null ? null : pubKeyBlob , priKeyData == null ? null : priKeyBlob );   console.info('convertKey success');   return keyPair; }

2.2 rsa 加密

static encryptMessage(message: string) {   let pubKeyData = base.decodeSync(RSAPublicKey)   let pubKeyPair = RsaUtil.genKeyPairByData(pubKeyData, null);   let pubKey = pubKeyPair.pubKey;   // 把字符串按utf-8解码为Uint8Array   let plainText: cryptoFramework.DataBlob = { data: new Uint8Array(buffer.from(message, 'utf-8').buffer) };   let cipher = cryptoFramework.createCipher('RSA1024|PKCS1|SHA256');   cipher.initSync(cryptoFramework.CryptoMode.ENCRYPT_MODE, pubKey, null);   let encryptData = cipher.doFinalSync(plainText);   let encryptResult = base.encodeToStringSync(encryptData.data);   return encryptResult; }

2.3 rsa 解密

// 解密消息 static decryptMessage(message: string): string {   let priKeyData = base.decodeSync(RSAPrivateKey)   let priKeyPair = RsaUtil.genKeyPairByData(null, priKeyData);   let priKey = priKeyPair.pubKey;   // 把字符串按utf-8解码为Uint8Array   let plainText: cryptoFramework.DataBlob = { data: new Uint8Array(buffer.from(message, 'utf-8').buffer) };   let decoder = cryptoFramework.createCipher('RSA1024|PKCS1');   decoder.initSync(cryptoFramework.CryptoMode.DECRYPT_MODE, priKey, null);   let decryptData = decoder.doFinalSync(plainText);   let decryptResult = base.encodeToStringSync(decryptData.data);   return decryptResult; }

三、加密参数处理

/**
 * 参数加密
 * */
export function encryptRequestParam(param: Record<string, string | number | boolean>): string {
  let encryptStr = AesUtil.encryptMessage(JSON.stringify(param))
  return encryptStr
}

/**
 * 过滤参数并排序
 * */
export function filterParamKey(param: Record<string, string | number | boolean>): string[]{
  let keys: Array<string> = []

  recordKeys(param).forEach(element => {
    let key: string = element
    let value: string = param[key].toString()
    keys.push(key)
  });
  return keys.sort()
}

/**
 * 签名  根据项目要求添加到相应的地方
 * */
export function signParam(filterKeys: Array<string>, param: Record<string, string | number | boolean>) {
  let contents: Array<string> = []
  filterKeys.forEach(element => {
    contents.push(element + "=" + param[element])
  });
  return contents.join("&")
}

// Record转为Map
export function recordKeys(myRecord: Record<string, string | boolean | number>): string[] {
  let keys: string[] = [];
  Object.keys(myRecord).forEach(element => {
    keys.push(element)
  });
  return keys;
}

四、加密参数配置

static encryptionParam(extraParam: Record<string, string | number | boolean>): Record<string, string> {
    // 对参数进行加密处理
    let encryptParam: Record<string, string> = {"key": encryptRequestParam(extraParam)}
    return isEncrypt ? encryptParam : {}
  }

五、解密后台返回数据

static responseHandler<T>(url: String, response: http.HttpResponse, reBackResponseModel: (responseModel: ResponseModel<T>) => void ): void {
    let responseModel: ResponseModel<T> = new ResponseModel("", 10000, false, "", null) as ResponseModel<T>;
    // 需要处理Url
    if (url == "") {
      return
    }
    if (http.ResponseCode.OK == response.responseCode) {
      if (isEncrypt) {
        responseModel.data = AesUtil.decryptMessage(JSON.stringify(response.result))
      } else {
        responseModel.data = JSON.stringify(response.result)
      }
      console.log(`typeof=====${typeof response.result}`)
      let tModel: T = JSON.parse(JSON.stringify(response.result));
      if (tModel && response.result["success"] == true) {
        responseModel.msgCode = 200
        responseModel.isSuccess = true
        responseModel.resultModel = tModel
      } else {
        responseModel.msgCode = response.result["code"]
        responseModel.msg = response.result["message"]
      }
      reBackResponseModel(responseModel)
    } else {
      // 请求失败
      responseModel.msg = 'request fail'
      reBackResponseModel(responseModel)
    }
  }