我正在使用 Apple 新闻 API 发布文章。
我创建了新帐户并创建了新频道。
下面是我正在使用的代码片段。
string channel_id = "{Channel_Id}";
string api_key_id = "{Key_Id}";
string api_key_secret = "{Secret}";
var path = "https://news-api.apple.com/channels/" + channel_id + "/articles";
var httpWebRequest = (HttpWebRequest)WebRequest.Create(path);
httpWebRequest.ContentType = "multipart/form-data";
httpWebRequest.Method = "POST";
httpWebRequest.Accept = "application/json";
httpWebRequest.Host = "news-api.apple.com";
httpWebRequest.UseDefaultCredentials = true;
httpWebRequest.PreAuthenticate = true;
httpWebRequest.ProtocolVersion = HttpVersion.Version11;
httpWebRequest.KeepAlive = true;
string appleDate = String.Format("{0}Z", DateTime.UtcNow.ToString("s"));
string credentials = String.Format("{0}:{1}", "Content-Disposition", "form-data; ");
credentials += String.Format("{0}:{1}", "filename", "article.json; ");
credentials += String.Format("{0}:{1}", "name", "article.json; ");
credentials += String.Format("{0}","HHMAC; ");
credentials += String.Format("{0}={1}", "key", api_key_id + "; ");
string decodedSecret = base64Decode(api_key_secret);
string canonical_request = path + "POST" + appleDate ;
string hash = Class1.HmacSha256Digest(canonical_request, decodedSecret);
string Encodedhash = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(hash));
credentials += String.Format("{0}={1}", "signature", Encodedhash + "; ");
credentials += String.Format("{0}={1}", "date", appleDate + "; ");
httpWebRequest.Headers.Add("Authorization", credentials);
using (StreamReader r = new StreamReader(Directory.GetCurrentDirectory() + ("/article.json")))
{
string json = r.ReadToEnd();
dynamic jsonObj = JsonConvert.DeserializeObject(json);
ASCIIEncoding encoding = new ASCIIEncoding();
Byte[] bytes = encoding.GetBytes(json);
Stream newStream = httpWebRequest.GetRequestStream();
newStream.Write(bytes, 0, bytes.Length);
newStream.Close();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
var result = streamReader.ReadToEnd();
}
这是base64Decode函数
public static string base64Decode(string data)
{
var base64EncodedBytes = System.Convert.FromBase64String(data);
return System.Text.Encoding.UTF8.GetString(base64EncodedBytes);
}
这是转换 Sha256Digest 的类
public static class Class1
{
public static string HmacSha256Digest(this string message, string secret)
{
ASCIIEncoding encoding = new ASCIIEncoding();
byte[] keyBytes = encoding.GetBytes(secret);
byte[] messageBytes = encoding.GetBytes(message);
System.Security.Cryptography.HMACSHA256 cryptographer = new System.Security.Cryptography.HMACSHA256(keyBytes);
byte[] bytes = cryptographer.ComputeHash(messageBytes);
return BitConverter.ToString(bytes).Replace("-", "").ToLower();
}
}
每当我尝试发布 API 时,都会收到以下错误消息:
“'远程服务器返回错误:(401)未经授权”。
当我尝试使用 Postman 发布 API 请求时,我收到以下错误消息:
{
"errors": [
{
"code": "WRONG_SIGNATURE"
}
]
}
生成签名有什么不正确的吗?
我研究了几篇文章,但找不到任何解决方案。
请指导我找出解决方案。