From 1cdd3cf0ec89997ea5d91100e87fdd538c7e4cf9 Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Sat, 15 Aug 2020 20:20:33 +0200
Subject: Data from request is now passed to Lua

---
 plop.c    |  1 -
 request.c | 52 ++++++++++++++++++++++++++++++++++++++++------------
 request.h |  1 +
 3 files changed, 41 insertions(+), 13 deletions(-)

diff --git a/plop.c b/plop.c
index 9ec7a5d..54e64ff 100644
--- a/plop.c
+++ b/plop.c
@@ -142,7 +142,6 @@ int handle_client(lua_State * L, struct pollfd * pfd, struct request ** request,
 	// TODO: Push the handler to stack earlier to avoid shifting it.
 	lua_getglobal((*request)->lua, "handler");
 	lua_insert((*request)->lua, 1);
-	lua_pushlstring((*request)->lua, (*request)->data, (*request)->length);
 	lua_call((*request)->lua, 5, 1);
 
 	size_t length;
diff --git a/request.c b/request.c
index e0956b4..15034ee 100644
--- a/request.c
+++ b/request.c
@@ -245,22 +245,23 @@ int parse_step_header_name(struct request * request)
 		lua_newtable(request->lua);
 	}
 
-	// TODO: Check for the header section end without backtracking.
-	const int position = request->position;
-	int result = read_rest_of_line(request);
-
-	if (0 == result)
+	if (request->position + 4 >= request->length)
 	{
 		return 0;
 	}
 
-	if (2 == result - position)
+	if (
+		request->data[request->position] == '\r' &&
+		request->data[request->position + 1] == '\n' &&
+		request->data[request->position + 2] == '\r' &&
+		request->data[request->position + 3] == '\n')
 	{
-		// Header section ended, nothing left to parse.
-		return request->position + 2;
-	}
+		// Skip "\r\n\r\n", end of headers.
+		request->position += 4;
 
-	request->position = position;
+		// Early return hidden in a macro!
+		PROCEED_TO(parse_step_data);
+	}
 
 	if (0 >= request->temp.start)
 	{
@@ -272,10 +273,11 @@ int parse_step_header_name(struct request * request)
 		}
 	}
 
-	result = read_until_char(request, ':');
+	int result = read_until_char(request, ':');
 
 	if (0 == result)
 	{
+		printf("parse_step_header_name:no ':'\n");
 		return 0;
 	}
 
@@ -331,5 +333,31 @@ int parse_step_header_value(struct request * request)
 	PROCEED_TO(parse_step_header_name);
 }
 
-// TODO: Pass data payload to Lua state.
+/// Makes sure that the expected data is in payload and pushes it forward to Lua.
+/// \param request Request to process
+/// \return -1 if an error has occured, 0 if too little data available or total number of bytes processed
+int parse_step_data(struct request * request)
+{
+	const int bytes_left = request->length - request->position;
+
+	if (bytes_left > request->expected_data_length)
+	{
+		return -1;
+	}
+	else if (bytes_left < request->expected_data_length)
+	{
+		return 0;
+	}
+
+	lua_pushlstring(request->lua, request->data + request->position, request->expected_data_length);
+
+	if (NULL != request->data)
+	{
+		free(request->data);
+		request->data = NULL;
+	}
+
+	return request->position;
+}
+
 // TODO: Make a table from the request.
diff --git a/request.h b/request.h
index 723908f..cf1ad35 100644
--- a/request.h
+++ b/request.h
@@ -36,3 +36,4 @@ int parse_step_path(struct request *);
 int parse_step_version(struct request *);
 int parse_step_header_name(struct request *);
 int parse_step_header_value(struct request *);
+int parse_step_data(struct request *);
-- 
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