Amazon.Runtime.Internal.Auth.AWS4Signer.CanonicalizeHeaderNames C# (CSharp) Метод

        protected static string CanonicalizeHeaderNames(IEnumerable<KeyValuePair<string, string>> sortedHeaders)
        {
            var builder = new StringBuilder();
            
            #if UNITY
            //incase of il2cpp scripting backend the sorted headers is broken.
            //so we order by the keys again
            if(AWSSDKUtils.IsIL2CPP)
            {
                foreach (var header in sortedHeaders.OrderBy(kvp =>kvp.Key.ToLowerInvariant()))
                {
                    if (builder.Length > 0)
                        builder.Append(";");
                    builder.Append(header.Key.ToLowerInvariant());
                }
                return builder.ToString();
            }
            #endif
            
            foreach (var header in sortedHeaders)
            {
                if (builder.Length > 0)
                    builder.Append(";");
                builder.Append(header.Key.ToLowerInvariant());
            }
            
            return builder.ToString();
        }

        public static AWS4SigningResult SignRequest(IRequest request, IClientConfig clientConfig, RequestMetrics metrics, string awsAccessKeyId, string awsSecretAccessKey, string service, string overrideSigningRegion)
        {
            request.Headers.Remove("Authorization");
            if (!request.Headers.ContainsKey("host"))
            {
                string text = request.Endpoint.Host;
                if (!request.Endpoint.IsDefaultPort)
                {
                    text = text + ":" + request.Endpoint.Port;
                }
                request.Headers.Add("host", text);
            }
            DateTime correctedUtcNow = AWSSDKUtils.CorrectedUtcNow;
            string   text2           = overrideSigningRegion ?? AWS4Signer.DetermineSigningRegion(clientConfig, service, request.AlternateEndpoint, request);

            if (request.Headers.ContainsKey("X-Amz-Content-SHA256"))
            {
                request.Headers.Remove("X-Amz-Content-SHA256");
            }
            IDictionary <string, string> sortedHeaders = AWS4Signer.SortHeaders(request.Headers);
            string text3 = AWS4Signer.CanonicalizeHeaderNames(sortedHeaders);
            IDictionary <string, string> parametersToCanonicalize = AWS4Signer.GetParametersToCanonicalize(request);

            parametersToCanonicalize.Add("X-Amz-Algorithm", "AWS4-HMAC-SHA256");
            parametersToCanonicalize.Add("X-Amz-Credential", string.Format(CultureInfo.InvariantCulture, "{0}/{1}/{2}/{3}/{4}", awsAccessKeyId, AWS4Signer.FormatDateTime(correctedUtcNow, "yyyyMMdd"), text2, service, "aws4_request"));
            parametersToCanonicalize.Add("X-Amz-Date", AWS4Signer.FormatDateTime(correctedUtcNow, "yyyyMMddTHHmmssZ"));
            parametersToCanonicalize.Add("X-Amz-SignedHeaders", text3);
            string canonicalQueryString = AWS4Signer.CanonicalizeQueryParameters(parametersToCanonicalize);
            string text4 = AWS4Signer.CanonicalizeRequest(request.Endpoint, request.ResourcePath, request.HttpMethod, sortedHeaders, canonicalQueryString, (service == "s3") ? "UNSIGNED-PAYLOAD" : "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855");

            metrics?.AddProperty(Metric.CanonicalRequest, text4);
            return(AWS4Signer.ComputeSignature(awsAccessKeyId, awsSecretAccessKey, text2, correctedUtcNow, service, text3, text4, metrics));
        }