Question

以下是下面的代码示例，该示例试图将数据发布到日志分析中，但失败，并出现禁止错误。能够成功地通过postasync调用发布数据，但是当与sendasync一起使用时我看到此错误，我想使用sendasync满足项目中的其他要求，请让我知道是否缺少任何要更新的内容或任何可能的建议帮我畅通无阻

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace SyncServiceMonitoringToLA
{
    class Program
    {

        // An example JSON object, with key/value pairs
        static string json = @"[{""DemoField1"":""DemoValue1"",""DemoField2"":""DemoValue2""},{""DemoField3"":""DemoValue3"",""DemoField4"":""DemoValue4""}]";

        // Update customerId to your Log Analytics workspace ID
        static string customerId = "xxx";

        // For sharedKey, use either the primary or the secondary Connected Sources client authentication key   
        static string sharedKey = "xxx";

        // LogName is name of the event type that is being submitted to Azure Monitor
        static string LogName = "syncmgTest";

        // You can use an optional field to specify the timestamp from the data. If the time field is not specified, Azure Monitor assumes the time is the message ingestion time
        static string TimeStampField = "";

        static void Main()
        {
            // Create a hash for the API signature
            var datestring = DateTime.UtcNow.ToString("r");
            var jsonBytes = Encoding.UTF8.GetBytes(json);
            string stringToHash = "POST\n" + jsonBytes.Length + "\napplication/json\n" + "x-ms-date:" + datestring + "\n/api/logs";
            string hashedString = BuildSignature(stringToHash, sharedKey);
            string signature = "SharedKey " + customerId + ":" + hashedString;

            //Console.WriteLine("" + PostData(signature, datestring, json));
            PostData(signature, datestring, json);
            Console.ReadLine();
        }

        // Build the API signature
        public static string BuildSignature(string message, string secret)
        {
            var encoding = new System.Text.ASCIIEncoding();
            byte[] keyByte = Convert.FromBase64String(secret);
            byte[] messageBytes = encoding.GetBytes(message);
            using (var hmacsha256 = new HMACSHA256(keyByte))
            {
                byte[] hash = hmacsha256.ComputeHash(messageBytes);
                return Convert.ToBase64String(hash);
            }
        }

        // Send a request to the POST API endpoint
        public static async void PostData(string signature, string date, string json)
        {
            try
            { 
                System.Net.Http.HttpClient client = new System.Net.Http.HttpClient();
                client.DefaultRequestHeaders.Add("accept", "application/json"); 
                client.DefaultRequestHeaders.Add("log-type", "syncmgTest");


                string url = "https://" + customerId + ".ods.opinsights.azure.com/api/logs?api-version=2016-04-01";

                var content = new StringContent(json, Encoding.UTF8, "application/json");

                var httpmsg = new HttpRequestMessage();
                string requestId = Guid.NewGuid().ToString();
                httpmsg.Headers.Add("Authorization", signature);
                httpmsg.Headers.Add("x-ms-date", date);
                httpmsg.Content = content;
                httpmsg.Method = HttpMethod.Post;
                httpmsg.RequestUri = new Uri(url);
                var response =  await client.SendAsync(httpmsg);

                Console.WriteLine(response);
                Console.ReadLine();
            }
            catch (Exception excep)
            {
                Console.WriteLine("API Post Exception: " + excep.Message);
            }
        }
    }
}

Answer 1

尝试替换此：

var content = new StringContent(json, Encoding.UTF8, "application/json");

与此：

var content = new StringContent(json, Encoding.UTF8);
content.Headers.ContentType = new MediaTypeHeaderValue("application/json");

日志分析呼叫后403禁止错误

1 个答案: