feat(): add mtls support

Author: sandy2008

src/OpenTelemetry.Exporter.OpenTelemetryProtocol/Implementation/OpenTelemetryProtocolExporterEventSource.cs

@@ -244,17 +244,17 @@ void IConfigurationExtensionsLogger.LogInvalidConfigurationValue(string key, str
 #if NET8_0_OR_GREATER
     [Event(26, Message = "{0} loaded successfully from '{1}'.", Level = EventLevel.Informational)]
     internal void MtlsCertificateLoaded(string certificateType, string filePath) =>
-        this.WriteEvent(25, certificateType, filePath);
+        this.WriteEvent(26, certificateType, filePath);
 
     [Event(27, Message = "Failed to load {0} from '{1}'. Error: {2}", Level = EventLevel.Error)]
     internal void MtlsCertificateLoadFailed(
         string certificateType,
         string filePath,
-        string error) => this.WriteEvent(26, certificateType, filePath, error);
+        string error) => this.WriteEvent(27, certificateType, filePath, error);
 
     [Event(28, Message = "{0} file not found at path: '{1}'.", Level = EventLevel.Error)]
     internal void MtlsCertificateFileNotFound(string certificateType, string filePath) =>
-        this.WriteEvent(27, certificateType, filePath);
+        this.WriteEvent(28, certificateType, filePath);
 
     [Event(
         29,
@@ -263,7 +263,7 @@ internal void MtlsCertificateFileNotFound(string certificateType, string filePat
     internal void MtlsFilePermissionCheckFailed(
         string certificateType,
         string filePath,
-        string error) => this.WriteEvent(28, certificateType, filePath, error);
+        string error) => this.WriteEvent(29, certificateType, filePath, error);
 
     [Event(
         30,
@@ -272,7 +272,7 @@ internal void MtlsFilePermissionCheckFailed(
     internal void MtlsFilePermissionWarning(
         string certificateType,
         string filePath,
-        string warning) => this.WriteEvent(29, certificateType, filePath, warning);
+        string warning) => this.WriteEvent(30, certificateType, filePath, warning);
 
     [Event(
         31,
@@ -281,33 +281,33 @@ internal void MtlsFilePermissionWarning(
     internal void MtlsCertificateChainValidationFailed(
         string certificateType,
         string subject,
-        string errors) => this.WriteEvent(30, certificateType, subject, errors);
+        string errors) => this.WriteEvent(31, certificateType, subject, errors);
 
     [Event(
         32,
         Message = "{0} chain validated successfully for certificate '{1}'.",
         Level = EventLevel.Informational)]
     internal void MtlsCertificateChainValidated(string certificateType, string subject) =>
-        this.WriteEvent(31, certificateType, subject);
+        this.WriteEvent(32, certificateType, subject);
 
     [Event(
         33,
         Message = "Server certificate validated successfully for '{0}'.",
         Level = EventLevel.Informational)]
-    internal void MtlsServerCertificateValidated(string subject) => this.WriteEvent(32, subject);
+    internal void MtlsServerCertificateValidated(string subject) => this.WriteEvent(33, subject);
 
     [Event(
         34,
         Message = "Server certificate validation failed for '{0}'. Errors: {1}",
         Level = EventLevel.Error)]
     internal void MtlsServerCertificateValidationFailed(string subject, string errors) =>
-        this.WriteEvent(33, subject, errors);
+        this.WriteEvent(34, subject, errors);
 
     [Event(
         35,
         Message = "mTLS configuration enabled. Client certificate: '{0}'.",
         Level = EventLevel.Informational)]
     internal void MtlsConfigurationEnabled(string clientCertificateSubject) =>
-        this.WriteEvent(34, clientCertificateSubject);
+        this.WriteEvent(35, clientCertificateSubject);
 #endif
 }

src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OtlpMtlsOptions.cs

@@ -60,7 +60,7 @@ public Func<
     /// Gets a value indicating whether mTLS is enabled.
     /// mTLS is considered enabled if at least the client certificate path is provided.
     /// </summary>
-    public bool IsEnabled => !string.IsNullOrEmpty(this.ClientCertificatePath);
+    public bool IsEnabled => !string.IsNullOrWhiteSpace(this.ClientCertificatePath);
 }
 
 #endif