初始化

bin/aliyun-log-csharp-sdk-master/SLSSDK/Common/Utilities/HttpUtils.cs

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+/*
+ * Copyright (C) Alibaba Cloud Computing
+ * All rights reserved.
+ * 
+ * 版权所有 （C）阿里云计算有限公司
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Globalization;
+using System.Text;
+
+namespace Aliyun.Api.LOG.Common.Utilities
+{
+    /// <summary>
+    /// Description of HttpUtils.
+    /// </summary>
+    internal static class HttpUtils
+    {
+        public const string UTF8Charset = "utf-8";
+        public const string Iso88591Charset = "iso-8859-1";
+
+        /// <summary>
+        /// Builds the URI parameter string from the request parameters.
+        /// </summary>
+        /// <param name="parameters"></param>
+        /// <returns></returns>
+        public static string GetRequestParameterString(IEnumerable<KeyValuePair<string, string>> parameters)
+        {
+            StringBuilder stringBuilder = new StringBuilder();
+            bool isFirst = true;
+            foreach (var p in parameters)
+            {
+                Debug.Assert(!string.IsNullOrEmpty(p.Key), "Null Or empty key is not allowed.");
+                if (!isFirst)
+                {
+                    stringBuilder.Append("&");
+                }
+                isFirst = false;
+                stringBuilder.Append(p.Key);
+                if (p.Value != null)
+                {
+                    stringBuilder.Append("=").Append(UrlEncode(p.Value, UTF8Charset));
+                }
+            }
+
+            return stringBuilder.ToString();
+        }
+        
+        /// <summary>
+        /// Encodes the URL.
+        /// </summary>
+        /// <param name="data"></param>
+        /// <param name="charset"></param>
+        /// <returns></returns>
+        public static string UrlEncode(string data, string charset = UTF8Charset)
+        {
+            Debug.Assert(data != null && !string.IsNullOrEmpty(charset));
+
+            StringBuilder stringBuilder = new StringBuilder(data.Length * 2);
+            string text = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.~";
+            byte[] bytes = Encoding.GetEncoding(charset).GetBytes(data);
+            foreach (char c in bytes)
+            {
+                if (text.IndexOf(c) != -1)
+                {
+                    stringBuilder.Append(c);
+                }
+                else
+                {
+                    stringBuilder.Append("%").Append(
+                        string.Format(CultureInfo.InvariantCulture, "{0:X2}", (int)c));
+                }
+            }
+            return stringBuilder.ToString();
+        }
+
+        // Convert a text from one charset to another.
+        public static string ReEncode(string text, string fromCharset, string toCharset)
+        {
+            Debug.Assert(text != null);
+            var buffer = Encoding.GetEncoding(fromCharset).GetBytes(text);
+            return Encoding.GetEncoding(toCharset).GetString(buffer);
+        }
+    }
+}