NetServices: Add support for an input body in a request and handle this with redirects.

Change-Id: Id2399d49aa673469c8c04ebd13884cdbcb24112d

headers/private/netservices2/HttpRequest.h

@@ -7,6 +7,7 @@
 #define _B_HTTP_REQUEST_H_
 
 #include <memory>
+#include <optional>
 #include <string_view>
 #include <variant>
 
@@ -82,6 +83,14 @@ struct BHttpAuthentication {
 
 class BHttpRequest {
 public:
+	// Aggregate parameter types
+	struct Body {
+		std::unique_ptr<BDataIO>	input;
+		BString						mimeType;
+		std::optional<off_t>		size;
+		std::optional<off_t>		startPosition;
+	};
+
 	// Constructors and Destructor
 									BHttpRequest();
 									BHttpRequest(const BUrl& url);
@@ -99,6 +108,7 @@ public:
 	const	BHttpFields&			Fields() const noexcept;
 			uint8					MaxRedirections() const noexcept;
 	const	BHttpMethod&			Method() const noexcept;
+	const	Body*					RequestBody() const noexcept;
 			bool					StopOnError() const noexcept;
 			bigtime_t				Timeout() const noexcept;
 	const	BUrl&					Url() const noexcept;
@@ -108,10 +118,16 @@ public:
 			void					SetFields(const BHttpFields& fields);
 			void					SetMaxRedirections(uint8 maxRedirections);
 			void					SetMethod(const BHttpMethod& method);
+			void					SetRequestBody(std::unique_ptr<BDataIO> input,
+										BString mimeType, std::optional<off_t> size);
 			void					SetStopOnError(bool stopOnError);
 			void					SetTimeout(bigtime_t timeout);
 			void					SetUrl(const BUrl& url);
 
+	// Clearing Options
+			void					ClearAuthentication() noexcept;
+			std::unique_ptr<BDataIO> ClearRequestBody() noexcept;
+
 	// Serialization
 			ssize_t					SerializeHeaderTo(BDataIO* target) const;
 			BString					HeaderToString() const;
@@ -119,6 +135,9 @@ public:
 private:
 	friend class BHttpSession;
 	struct Data;
+
+			bool					RewindBody() noexcept;
+
 	std::unique_ptr<Data>			fData;
 };
 

headers/private/netservices2/HttpStream.h

@@ -7,6 +7,7 @@
 #define _HTTP_STREAM_H_
 
 #include <memory>
+#include <vector>
 
 class BDataIO;
 class BMallocIO;
@@ -29,7 +30,12 @@ public:
 		bool complete;
 	};
 
-	virtual	TransferInfo	Transfer(BDataIO*) = 0;
+	virtual	TransferInfo			Transfer(BDataIO*) = 0;
+
+protected:
+			ssize_t					BufferData(BDataIO* source, size_t maxSize);
+
+			std::vector<std::byte>	fBuffer;
 };
 
 
@@ -41,11 +47,11 @@ public:
 	virtual	TransferInfo	Transfer(BDataIO* target) override;
 
 private:
-	std::unique_ptr<BMallocIO>		fHeader;
-	BDataIO*						fBody;
-	off_t							fTotalSize = 0;
-	off_t							fBodyOffset = 0;
-	off_t							fCurrentPos = 0;
+	off_t							fRemainingHeaderSize = 0;
+	BDataIO*						fBody = nullptr;
+	off_t							fTotalBodySize = 0;
+	off_t							fBufferedBodySize = 0;
+	off_t							fTransferredBodySize = 0;
 };