From b31f52e332cdae586f02e39228c4e229d07bc4ea Mon Sep 17 00:00:00 2001
From: R4SAS <r4sas@i2pmail.org>
Date: Wed, 25 Jan 2023 08:54:45 +0000
Subject: [PATCH] [http] keep query even if it was empty (closes #1844)

Signed-off-by: R4SAS <r4sas@i2pmail.org>
---
 libi2pd/HTTP.cpp | 5 ++++-
 libi2pd/HTTP.h   | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/libi2pd/HTTP.cpp b/libi2pd/HTTP.cpp
index 8791eadb..b8d7e8c3 100644
--- a/libi2pd/HTTP.cpp
+++ b/libi2pd/HTTP.cpp
@@ -160,6 +160,7 @@ namespace http
 			return true;
 		} else if (url.at(pos_c) == '?') {
 			/* found query part */
+			hasquery = true;
 			path = url.substr(pos_p, pos_c - pos_p);
 			pos_p = pos_c + 1;
 			pos_c = url.find('#', pos_p);
@@ -218,8 +219,10 @@ namespace http
 			}
 		}
 		out += path;
+		if (hasquery) // add query even if it was empty
+			out += "?";
 		if (query != "")
-			out += "?" + query;
+			out += query;
 		if (frag != "")
 			out += "#" + frag;
 		return out;
diff --git a/libi2pd/HTTP.h b/libi2pd/HTTP.h
index 9445a01a..046eebb9 100644
--- a/libi2pd/HTTP.h
+++ b/libi2pd/HTTP.h
@@ -33,6 +33,7 @@ namespace http
 		std::string host;
 		unsigned short int port;
 		std::string path;
+		bool hasquery;
 		std::string query;
 		std::string frag;