filetransfer: Add support for cURL SSLCERT/SSLKEY options

Author: ztzg

src/libstore/filetransfer.cc

@@ -410,6 +410,12 @@ struct curlFileTransfer : public FileTransfer
             if (writtenToSink)
                 curl_easy_setopt(req, CURLOPT_RESUME_FROM_LARGE, writtenToSink);
 
+            if (!request.sslCert.empty())
+                curl_easy_setopt(req, CURLOPT_SSLCERT, request.sslCert.c_str());
+
+            if (!request.sslKey.empty())
+                curl_easy_setopt(req, CURLOPT_SSLKEY, request.sslKey.c_str());
+
             curl_easy_setopt(req, CURLOPT_ERRORBUFFER, errbuf);
             errbuf[0] = 0;
 

src/libstore/include/nix/store/filetransfer.hh

@@ -65,6 +65,8 @@ struct FileTransferRequest
     std::string uri;
     Headers headers;
     std::string expectedETag;
+    Path sslCert;
+    Path sslKey;
     bool verifyTLS = true;
     bool head = false;
     bool post = false;