From 63365a9067e3704c6b136c585a8593c5117ce0a8 Mon Sep 17 00:00:00 2001
From: hugogogo <hugogogo@protonmail.com>
Date: Sun, 7 Aug 2022 22:33:39 +0200
Subject: [PATCH] cgi_script read and write on a string

---
 srcs/webserv/cgi_script.cpp | 47 +++++++++++++++++++++++++++++--------
 1 file changed, 37 insertions(+), 10 deletions(-)

diff --git a/srcs/webserv/cgi_script.cpp b/srcs/webserv/cgi_script.cpp
index 55df2d9..662094d 100644
--- a/srcs/webserv/cgi_script.cpp
+++ b/srcs/webserv/cgi_script.cpp
@@ -68,22 +68,49 @@ char**	Webserv::_set_env(Client *client)
 
 void	Webserv::_exec_script(Client *client, char **env)
 {
-	int		save_stdout;
-	char * const * nll = NULL;
+	#define RD 0
+	#define WR 1
+	#define BUF_SIZE 10
 
-	// save STDOUT
-	save_stdout = dup(STDOUT_FILENO);
-	// inside child process
+	char buf[BUF_SIZE];
+	int fd_in[2];
+	int fd_out[2];
+	char * const * nll = NULL;
+	std::string response;
+	std::string body = client->get_rq_body();
+
+	pipe(fd_in);
+	pipe(fd_out);
 	if (fork() == 0)
-	{
-		dup2(client->get_cl_fd(), STDOUT_FILENO);
+	{   
+		close(fd_in[WR]);
+		close(fd_out[RD]);
+		dup2(fd_in[RD], STDIN_FILENO);
+		dup2(fd_out[WR], STDOUT_FILENO);
 		execve(client->get_rq_script_path().c_str(), nll, env);
+		std::cerr << "execve crashed\n";
 	}
-	// inside parent process
 	else
+	{
+		close(fd_in[RD]);
+		close(fd_out[WR]);
+		// write to stdin of child programm
+		write(fd_in[WR], body.c_str(), body.size());
+		close(fd_in[WR]);
 		waitpid(-1, NULL, 0);
-	// restore stdout
-	dup2(save_stdout, STDOUT_FILENO);
+
+		// read stdout of child programm
+		memset(buf, '\0', BUF_SIZE);
+		while (read(fd_out[RD], buf, BUF_SIZE) > 0)
+		{
+			response += buf;
+			memset(buf, '\0', BUF_SIZE);
+		}
+	}
+	if (response.empty())
+		response += "Status: 500\r\n\r\n";
+	// TODO: see how this must be handled
+	client->response += response;
 }
 
 void	Webserv::_construct_client(Client *client)