feat(binding-coap): add support for client certificates

Author: JKRhb

lib/src/binding_coap/coap_client.dart

@@ -26,7 +26,10 @@ class _InternalCoapConfig extends CoapConfigDefault {
         dtlsCiphers = coapConfig.dtlsCiphers,
         dtlsVerify = coapConfig.dtlsVerify,
         dtlsWithTrustedRoots = coapConfig.dtlsWithTrustedRoots,
-        rootCertificates = coapConfig.rootCertificates;
+        rootCertificates = coapConfig.rootCertificates,
+        clientCertificateFileName = coapConfig.clientCertificateFileName,
+        clientKeyFileName = coapConfig.clientKeyFileName,
+        verifyPrivateKey = coapConfig.verifyPrivateKey;
 
   @override
   final int preferredBlockSize;
@@ -42,6 +45,15 @@ class _InternalCoapConfig extends CoapConfigDefault {
 
   @override
   final List<Uint8List> rootCertificates;
+
+  @override
+  final String? clientCertificateFileName;
+
+  @override
+  final String? clientKeyFileName;
+
+  @override
+  final bool verifyPrivateKey;
 }
 
 coap.PskCredentialsCallback? _createPskCallback(

lib/src/binding_coap/coap_config.dart

@@ -22,6 +22,9 @@ class CoapConfig {
     this.rootCertificates = const [],
     this.dtlsWithTrustedRoots = true,
     this.dtlsVerify = true,
+    this.clientKeyFileName,
+    this.clientCertificateFileName,
+    this.verifyPrivateKey = false,
   });
 
   /// Whether certificates should be verified by OpenSSL.
@@ -57,4 +60,8 @@ class CoapConfig {
   ///
   /// Defaults to 60 seconds.
   final Duration multicastDiscoveryTimeout;
+
+  final String? clientCertificateFileName;
+  final String? clientKeyFileName;
+  final bool verifyPrivateKey;
 }

pubspec.yaml

@@ -30,3 +30,9 @@ dependencies:
   typed_data: ^1.3.2
   uri: ^1.0.0
   uuid: ^4.2.1
+
+dependency_overrides:
+  coap:
+    git:
+      url: https://github.com/namib-project/coap
+      ref: client-certificate-support