Merge branch 'master' into fix-intermittent-crash-due-to-GC-finalisation

.github/actions/spelling/allow.txt

@@ -383,6 +383,8 @@ pkolmann
 podman
 pollfd
 pollfds
+postfields
+postfieldsize
 postun
 prefork
 preinit

src/curlEngine.d

@@ -503,6 +503,20 @@ class CurlEngine {
 		http.onSend = data => uploadFile.rawRead(data).length;
 		http.contentLength = offsetSize;
 	}
+	
+	void setZeroContentLength() {
+		// Explicit HTTP semantics
+		http.contentLength = 0;
+		addRequestHeader("Content-Length", to!string(0));
+		
+		// Force libcurl POST-with-empty-body semantics
+		// This prevents libcurl from attempting to read from stdin when performing a POST with no payload.
+		http.handle.set(CurlOption.postfields, "");
+		http.handle.set(CurlOption.postfieldsize, 0L);
+		
+		// Defensive: ensure we are NOT in upload/read-callback mode
+		http.handle.set(CurlOption.upload, 0);
+	}
 
 	CurlResponse execute() {
 		scope(exit) {

src/onedrive.d

@@ -1474,6 +1474,7 @@ class OneDriveApi {
 		bool validateJSONResponse = false;
 		oneDriveErrorHandlerWrapper((CurlResponse response) {
 			connect(HTTP.Method.post, url, false, response, requestHeaders);
+			curlEngine.setZeroContentLength();
 			return curlEngine.execute();
 		}, validateJSONResponse, callingFunction, lineno);
 	}