HTTP improvements (#803)

- Add GetTotalBytesReceived/GetTotalBytesSent to HttpServer with implementations in ASIO and http.sys backends
- Add ExpectedErrorCodes to HttpClientSettings to suppress warn/info logs for anticipated HTTP error codes
- Also fixes minor issues in `CprHttpClient::Download`

2 files changed, 9 insertions, 0 deletions

diff --git a/src/zenhttp/include/zenhttp/httpclient.h b/src/zenhttp/include/zenhttp/httpclient.h
index 53be36b9a..d87082d10 100644
--- a/src/zenhttp/include/zenhttp/httpclient.h
+++ b/src/zenhttp/include/zenhttp/httpclient.h
@@ -13,6 +13,7 @@
 #include <functional>
 #include <optional>
 #include <unordered_map>
+#include <vector>
 
 namespace zen {
 
@@ -58,6 +59,10 @@ struct HttpClientSettings
 	Oid													  SessionId					  = Oid::Zero;
 	bool												  Verbose					  = false;
 	uint64_t											  MaximumInMemoryDownloadSize = 1024u * 1024u;
+
+	/// HTTP status codes that are expected and should not be logged as warnings.
+	/// 404 is always treated as expected regardless of this list.
+	std::vector<HttpResponseCode> ExpectedErrorCodes;
 };
 
 class HttpClientError : public std::runtime_error
diff --git a/src/zenhttp/include/zenhttp/httpserver.h b/src/zenhttp/include/zenhttp/httpserver.h
index fee932daa..62c080a7b 100644
--- a/src/zenhttp/include/zenhttp/httpserver.h
+++ b/src/zenhttp/include/zenhttp/httpserver.h
@@ -230,6 +230,10 @@ public:
 	 */
 	std::string_view GetExternalHost() const { return m_ExternalHost; }
 
+	/** Returns total bytes received and sent across all connections since server start. */
+	virtual uint64_t GetTotalBytesReceived() const { return 0; }
+	virtual uint64_t GetTotalBytesSent() const { return 0; }
+
 private:
 	std::vector<HttpService*> m_KnownServices;
 	int						  m_EffectivePort = 0;