/// <summary>
/// 获取随机字符串
/// </summary>
/// <param name="length">字符串长度</param>
/// <param name="randCodeType">字符类型</param>
/// <returns>返回生成的字符串</returns>
/// <example>
/// <code lang="c#">
/// <![CDATA[
///
/// string str=StringHelper.GetRandCode(4,RandCodeType.NUMBER|RandCodeType.LETTER);//随机生成4位数字和字母混合字符串
///
/// string num=StringHelper.GetRandCode(6,RandCodeType.NUMBER);//随机生成6位数字
///
/// string str2=StringHelper.GetRandCode(4,RandCodeType.LETTER);//随机生成4位字母字符串
///
/// ]]>
/// </code>
/// </example>
public static string GetRandCode(int length, RandCodeType randCodeType)
{
StringBuilder strb = new StringBuilder();
long tick = DateTime.Now.Ticks;
Random rnd = new Random((int)(tick & 0xffffffffL) | (int)(tick >> 32));
int randcodeType = (int)randCodeType;
for (int i = 0; i < length; i++)
{
switch (randcodeType)
{
case 1:
strb.Append(numArray[rnd.Next(0, numArray.Length)]); break;
case 2:
strb.Append(letterArray[rnd.Next(0, letterArray.Length)]); break;
case 3:
strb.Append(numberAndLetterArray[rnd.Next(0, numberAndLetterArray.Length)]); break;
}
}
return(strb.ToString());
}
/// <summary>
/// 校验验证码
/// </summary>
/// <param name="type"></param>
/// <param name="code"></param>
/// <param name="token"></param>
/// <param name="tryIndicator"></param>
/// <returns></returns>
public async Task <string> VerifyRandCodeAsync(RandCodeType type, string code, string token, Action <int> tryIndicator = null)
{
if (type == RandCodeType.SjRand)
{
var url = "/passport/captcha/captcha-check";
var referUrl = "";
object data = new
{
answer = code,
rand = "sjrand",
login_site = "E"
};
//var sendDelay
var result = await RunRequestLoopAsync(
_ =>
{
var ctx = Create(
HttpMethod.Post,
url,
referUrl,
data,
new { result_code = 0, result_message = "" }
);
if (ApiConfiguration.Instance.EnableVerifycodeSubmitDelay && NetworkConfiguration.Current.VcSubmitDelay > 0)
{
var delay = NetworkConfiguration.Current.VcSubmitDelay - (int)(DateTime.Now - LastVcLoadTime).TotalMilliseconds;
if (delay > 0)
{
ctx.SendDelay(new TimeSpan(0, 0, 0, 0, delay));
}
}
return(ctx);
},
tryIndicator
).ConfigureAwait(true);
if (!result.IsValid())
{
return("登录失败，请重试(无法校验验证码)");
}
Session.LastCheckRandCodeTime = DateTime.Now;
if (result.Result.result_code != 4)
{
return(result.Result.result_message ?? "验证码错误");
}
}
else
{
var url = "passcodeNew/checkRandCodeAnsyn";
var referUrl = "";
object data = null;
switch (type)
{
case RandCodeType.Randp:
referUrl = "confirmPassenger/initDc";
data = new
{
randCode = code,
rand = "randp",
REPEAT_SUBMIT_TOKEN = token,
_json_att = Session.Attributes
}; break;
case RandCodeType.RandpResign:
referUrl = "confirmPassenger/initGc";
data = new
{
randCode = code,
rand = "randp",
REPEAT_SUBMIT_TOKEN = token,
_json_att = Session.Attributes
}; break;
default:
break;
}
//var sendDelay
var result = await RunRequestLoopAsync(
_ =>
{
var ctx = Create(
HttpMethod.Post,
url,
referUrl,
data,
new { data = new { result = 0 } }
);
if (ApiConfiguration.Instance.EnableVerifycodeSubmitDelay && NetworkConfiguration.Current.VcSubmitDelay > 0)
{
var delay = NetworkConfiguration.Current.VcSubmitDelay - (int)(DateTime.Now - LastVcLoadTime).TotalMilliseconds;
if (delay > 0)
{
ctx.SendDelay(new TimeSpan(0, 0, 0, 0, delay));
}
}
return(ctx);
},
tryIndicator
).ConfigureAwait(true);
if (!result.IsValid())
{
return("登录失败，请重试(无法校验验证码)");
}
Session.LastCheckRandCodeTime = DateTime.Now;
if ((result.Result.data?.result ?? 0) == 0)
{
return("验证码错误");
}
}
return(null);
}
/// <summary>
/// 校验验证码
/// </summary>
/// <param name="type"></param>
/// <param name="code"></param>
/// <param name="token"></param>
/// <param name="tryIndicator"></param>
/// <returns></returns>
public string VerifyRandCode(RandCodeType type, string code, string token, Action <int> tryIndicator = null)
{
return(VerifyRandCodeAsync(type, code, token, tryIndicator).Result);
}
