.net 开发有大神指点？-开发者论坛

.net 开发有大神指点？

点****媒 · 点****媒发布于2015-10-19 10:49 浏览：3235 回复：12

用.net照着HTTP RESULT API post方式访问api 老是返回401，有没有做过了求指点呀。。

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共12条回复最后由忽****我回复于2016-01-08 23:41

#2高****师回复于2015-10-19 15:25:36

date_default_timezone_set('UTC');

$AK = "yourAK";

$timestamp = date("Y-m-d")."T".date("H:i:s")."Z";

$expirationPeriodInSeconds = "3600";

$SK="yourSK";

$authStringPrefix = "bce-auth-v1"."/".$AK."/".$timestamp."/".$expirationPeriodInSeconds;

$SigningKey=hash_hmac('SHA256',$authStringPrefix,$SK);

$CanonicalHeaders1 = "host;"."x-bce-date";

$CanonicalHeaders2 = "host:sms.bj.baidubce.com\n"."x-bce-date:".urlencode($timestamp);//

print "CanonicalHeaders2:".$CanonicalHeaders2."\n";

$CanonicalString = "";

$CanonicalURI = "/v1/message";

$CanonicalRequest = "POST\n".$CanonicalURI."\n".$CanonicalString."\n".$CanonicalHeaders2; //第二步

print "CanonicalRequest:".$CanonicalRequest."\n";

$Signature = hash_hmac('SHA256',$CanonicalRequest,$SigningKey);

print "Signature:".$Signature."\n";

$Authorization = "bce-auth-v1/{$AK}/".$timestamp."/{$expirationPeriodInSeconds}/{$CanonicalHeaders1}/{$Signature

}";

print "Authorization:".$Authorization."\n";

#3高****师回复于2015-10-19 15:27:19

给你个PHP的参考一下，有几个需要重点关注：1.UTC时间；2.AK、SK不能错；3.CanonicalString，即使为空也要写；

#4点****媒回复于2015-10-19 19:45:43

对#3 高****师回复

给你个PHP的参考一下，有几个需要重点关注：1.UTC时间；2.AK、SK不能错；3.CanonicalString，即使为空也要写；

x-bce-content-sha256 这个是怎么算出来的？

#5点****媒回复于2015-10-19 19:50:28

对#3 高****师回复

给你个PHP的参考一下，有几个需要重点关注：1.UTC时间；2.AK、SK不能错；3.CanonicalString，即使为空也要写；

我也是这样做的呀。 x-bce-content-sha256 这个签名是怎么算的呢？，

#6高****师回复于2015-10-19 22:56:48

对#5 点****媒回复

我也是这样做的呀。 x-bce-content-sha256 这个签名是怎么算的呢？，[图片]

正好在这个link中找到了类似的，可以参考一下；http://codego.net/41595/

如果link中的代码可行，那么对应的应该是这样的：

var hmacsha256 = new HMACSHA256(Encoding.UTF8.GetBytes(signingKey));

hmacsha256.ComputeHash(Encoding.UTF8.GetBytes(canonicalRequest));

我不会.Net，撸主可以测试一下，如果可行，可以将这部分签名代码分享给大家。

#7点****媒回复于2015-10-20 08:58:40

对#6 高****师回复

正好在这个link中找到了类似的，可以参考一下；http://codego.net/41595/ 如果link中的代码可行，那么对应的应该是这样的： var hmacsha256 = new HMACSHA256(Encoding.UTF8.GetBytes(signingKey)); hmacsha256.ComputeHash(Encoding.UTF8.GetBytes(canonicalRequest)); 我不会.Net，撸主可以测试一下，如果可行，可以将这部分签名代码分享给大家。[图片]

这个在我写的MyHMACHash256方法是可以得到的，我所说的是公共请求不是有个 x-bce-content-sha256 请求头吗？我没明白，这个请求头是怎么算的签名？不是很明白呢？

#8高****师回复于2015-10-20 15:38:39

对#7 点****媒回复

这个在我写的MyHMACHash256方法是可以得到的，我所说的是公共请求不是有个 x-bce-content-sha256 请求头吗？我没明白，这个请求头是怎么算的签名？不是很明白呢？ [图片]

$head = array("Content-Type:application/json","Authorization:{$Authorization}","x-bce-date:{$timestamp}","x-bce

-content-sha256:{$SigningKey}");

应该是前面经过hash_hmac处理后得到的SigningKey；

#9中****网回复于2015-10-22 16:48:50

public string SHA256Encrypt(string strIn)
        {
            byte[] Value;
            UnicodeEncoding Code = new UnicodeEncoding();
            byte[] Message = Code.GetBytes(strIn);
            SHA256Managed shaMgd = new SHA256Managed();
            Value = shaMgd.ComputeHash(Message);
            strIn = "";
            foreach (byte o in Value)
            {
                strIn += o.ToString("x2");
            }
            shaMgd.Dispose();
            return strIn;
        }

试试是用这个签名吗？

#10h****a回复于2015-12-15 14:54:20

public class BaiduSmsService : PowerMeasurement.WebApi.Services.SMS.ISmsService

{

string datetime = "";

private string GetAuthorizationCode()

{

var accessKeyId = ConfigurationManager.AppSettings.Get("BaiduSMSAccessKeyId");

var secreteKey = ConfigurationManager.AppSettings.Get("BaiduSMSSecreteKey");

var template = "bce-auth-v1/{accessKeyId}/{timestamp}/{expirationPeriodInSeconds}/{signedHeaders}/{signature}";

var timestamp = datetime;

var expirationPeriodInSeconds = "3600";

var signedHeaders = "host;x-bce-date";

var signature = GetSignature();

return template.Replace("{accessKeyId}", accessKeyId)

.Replace("{accessKeyId}", accessKeyId)

.Replace("{timestamp}", timestamp)

.Replace("{expirationPeriodInSeconds}", expirationPeriodInSeconds)

.Replace("{signedHeaders}", signedHeaders)

.Replace("{signature}", signature);

}

private string GetSignature()

{

var signingKey = GetSigningKey();

var canonical = GetCanonicalRequest();

return GetHMACSHA256Code(signingKey, canonical);

}

private string GetSigningKey()

{

var accessKeyId = ConfigurationManager.AppSettings.Get("BaiduSMSAccessKeyId");

var secreteKey = ConfigurationManager.AppSettings.Get("BaiduSMSSecreteKey");

var expirationPeriodInSeconds = "3600";

string authStringPrefix = "bce-auth-v1/{accessKeyId}/{timestamp}/{expirationPeriodInSeconds}";

authStringPrefix = authStringPrefix.Replace("{accessKeyId}", accessKeyId)

.Replace("{timestamp}", datetime)

.Replace("{expirationPeriodInSeconds}", expirationPeriodInSeconds);

var signingKey = GetHMACSHA256Code(secreteKey, authStringPrefix);

return signingKey;

}

private string GetCanonicalRequest()

{

var method = "POST";

var canonicalURI = "/v1/message";

var canonicalQueryString = "";

var host = ConfigurationManager.AppSettings.Get("BaiduSMSHost");

var canonicalHeaders = HttpUtility.UrlEncode("host") + ":" + HttpUtility.UrlEncode(host);

canonicalHeaders += "\n" + HttpUtility.UrlEncode("x-bce-date") + ":" + HttpUtility.UrlEncode(datetime).ToUpper();

var canonical = method + "\n" + canonicalURI + "\n" + canonicalQueryString + "\n" + canonicalHeaders;

return canonical;

}

private string GetHMACSHA256Code(string key, string strContent)

{

var hash = new HMACSHA256(Encoding.UTF8.GetBytes(key)).ComputeHash(Encoding.UTF8.GetBytes(strContent));

var signingKey = "";

for (var i = 0; i < hash.Length; i++)

{

signingKey += hash[i].ToString("x2");

}

return signingKey;

}

public bool SendText(string to, string content)

{

if (to.StartsWith("86"))

{

to = to.Substring(2, to.Length - 2);

}

var host = ConfigurationManager.AppSettings.Get("BaiduSMSHost");

var BaiduSMSTemplateId = ConfigurationManager.AppSettings.Get("BaiduSMSTemplateId");

var smsUrl = "http://" + host + "/v1/message";

datetime = DateTime.Now.ToUniversalTime().ToString("yyyy-MM-ddThh:mm:ssZ");

var requestContent = new

{

templateId = BaiduSMSTemplateId,

receiver = new string[] { to },

contentVar = new

{

code = content

}

};

var strContent = JsonConvert.SerializeObject(requestContent);

var btyeContent = Encoding.UTF8.GetBytes(strContent);

var request = WebRequest.CreateHttp(smsUrl);

request.ProtocolVersion = HttpVersion.Version11;

request.Method = "POST";

request.ContentType = "application/json";

request.Headers.Add("Authorization", GetAuthorizationCode());

request.Headers.Add("x-bce-date", datetime);

request.Headers.Add("x-bce-content-sha256", GetSigningKey());

using (Stream stream = request.GetRequestStream())

{

stream.Write(btyeContent, 0, btyeContent.Length);

}

HttpWebResponse res;

try

{

res = (HttpWebResponse)request.GetResponse();

var output = res.GetResponseStream();

byte[] temp = new byte[res.ContentLength];

output.Read(temp, 0, temp.Length);

var txt = Encoding.UTF8.GetString(temp);

Console.Write(txt);

}

catch (WebException ex)

{

res = (HttpWebResponse)ex.Response;

}

return true;

}

#11h****a回复于2015-12-15 14:55:18

public class BaiduSmsService

{

string datetime = "";

private string GetAuthorizationCode()

{

var accessKeyId = ConfigurationManager.AppSettings.Get("BaiduSMSAccessKeyId");

var secreteKey = ConfigurationManager.AppSettings.Get("BaiduSMSSecreteKey");

var template = "bce-auth-v1/{accessKeyId}/{timestamp}/{expirationPeriodInSeconds}/{signedHeaders}/{signature}";

var timestamp = datetime;

var expirationPeriodInSeconds = "3600";

var signedHeaders = "host;x-bce-date";

var signature = GetSignature();

return template.Replace("{accessKeyId}", accessKeyId)

.Replace("{accessKeyId}", accessKeyId)

.Replace("{timestamp}", timestamp)

.Replace("{expirationPeriodInSeconds}", expirationPeriodInSeconds)

.Replace("{signedHeaders}", signedHeaders)

.Replace("{signature}", signature);

}

private string GetSignature()

{

var signingKey = GetSigningKey();

var canonical = GetCanonicalRequest();

return GetHMACSHA256Code(signingKey, canonical);

}

private string GetSigningKey()

{

var accessKeyId = ConfigurationManager.AppSettings.Get("BaiduSMSAccessKeyId");

var secreteKey = ConfigurationManager.AppSettings.Get("BaiduSMSSecreteKey");

var expirationPeriodInSeconds = "3600";

string authStringPrefix = "bce-auth-v1/{accessKeyId}/{timestamp}/{expirationPeriodInSeconds}";

authStringPrefix = authStringPrefix.Replace("{accessKeyId}", accessKeyId)

.Replace("{timestamp}", datetime)

.Replace("{expirationPeriodInSeconds}", expirationPeriodInSeconds);

var signingKey = GetHMACSHA256Code(secreteKey, authStringPrefix);

return signingKey;

}

private string GetCanonicalRequest()

{

var method = "POST";

var canonicalURI = "/v1/message";

var canonicalQueryString = "";

var host = ConfigurationManager.AppSettings.Get("BaiduSMSHost");

var canonicalHeaders = HttpUtility.UrlEncode("host") + ":" + HttpUtility.UrlEncode(host);

canonicalHeaders += "\n" + HttpUtility.UrlEncode("x-bce-date") + ":" + HttpUtility.UrlEncode(datetime).ToUpper();

var canonical = method + "\n" + canonicalURI + "\n" + canonicalQueryString + "\n" + canonicalHeaders;

return canonical;

}

private string GetHMACSHA256Code(string key, string strContent)

{

var hash = new HMACSHA256(Encoding.UTF8.GetBytes(key)).ComputeHash(Encoding.UTF8.GetBytes(strContent));

var signingKey = "";

for (var i = 0; i < hash.Length; i++)

{

signingKey += hash[i].ToString("x2");

}

return signingKey;

}

public bool SendText(string to, string content)

{

if (to.StartsWith("86"))

{

to = to.Substring(2, to.Length - 2);

}

var host = ConfigurationManager.AppSettings.Get("BaiduSMSHost");

var BaiduSMSTemplateId = ConfigurationManager.AppSettings.Get("BaiduSMSTemplateId");

var smsUrl = "http://" + host + "/v1/message";

datetime = DateTime.Now.ToUniversalTime().ToString("yyyy-MM-ddThh:mm:ssZ");

var requestContent = new

{

templateId = BaiduSMSTemplateId,

receiver = new string[] { to },

contentVar = new

{

code = content

}

};

var strContent = JsonConvert.SerializeObject(requestContent);

var btyeContent = Encoding.UTF8.GetBytes(strContent);

var request = WebRequest.CreateHttp(smsUrl);

request.ProtocolVersion = HttpVersion.Version11;

request.Method = "POST";

request.ContentType = "application/json";

request.Headers.Add("Authorization", GetAuthorizationCode());

request.Headers.Add("x-bce-date", datetime);

request.Headers.Add("x-bce-content-sha256", GetSigningKey());

using (Stream stream = request.GetRequestStream())

{

stream.Write(btyeContent, 0, btyeContent.Length);

}

HttpWebResponse res;

try

{

res = (HttpWebResponse)request.GetResponse();

var output = res.GetResponseStream();

byte[] temp = new byte[res.ContentLength];

output.Read(temp, 0, temp.Length);

var txt = Encoding.UTF8.GetString(temp);

Console.Write(txt);

}

catch (WebException ex)

{

res = (HttpWebResponse)ex.Response;

}

return true;

}

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