From 7a388dad85152a203033c14fee3c64607301865a Mon Sep 17 00:00:00 2001
From: "Anna (navi) Figueiredo Gomes" <navi@vlhl.dev>
Date: Sat, 8 Jul 2023 15:06:33 -0300
Subject: libactivity: (tmp name) http request parse

the parse works via callbacks, registered to a method and path. further
work will be done to simplify extraction of path, and to make the
request struct more private.

missing the parsing and handling of reponses.

Signed-off-by: Anna (navi) Figueiredo Gomes <navi@vlhl.dev>
---
 src/main.c | 116 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 src/main.c

(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..09cf045
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,116 @@
+#include <stdio.h>
+#include <cjson/cJSON.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "buffer.h"
+#include "http.h"
+
+static struct reply *handle(struct request *req, void *data) {
+	(void)data;
+	struct reply *ret = malloc(sizeof(struct reply));
+	cJSON *obj = cJSON_CreateObject();
+	cJSON_AddStringToObject(obj, "path", req->path);
+	cJSON_AddStringToObject(obj, "query", req->query);
+	cJSON_AddStringToObject(obj, "method", req->method);
+	cJSON_AddStringToObject(obj, "version", req->http_version);
+	cJSON_AddStringToObject(obj, "hostname", http_get_header(req, "Host"));
+	if (req->data) {
+		cJSON_AddItemReferenceToObject(obj, "data", cJSON_Parse(req->data));
+	}
+
+	ret->status = 200;
+	ret->body = cJSON_Print(obj);
+	cJSON_Delete(obj);
+
+	return ret;
+}
+
+int main(int argc, char **argv) {
+	(void)argc;
+	(void)argv;
+	int server_fd = 0;
+	int client_fd = 0;
+	struct sockaddr_in addr = {
+		.sin_family = AF_INET,
+		.sin_addr.s_addr = INADDR_ANY,
+		.sin_port = htons(45748),
+	};
+
+	int addrlen = sizeof(addr);
+
+	if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+		perror("socket failed");
+		return EXIT_FAILURE;
+	}
+
+	int opt = 1;
+
+	if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
+		perror("setsockopt failed");
+		return EXIT_FAILURE;
+	}
+
+	if (bind(server_fd, (struct sockaddr*)&addr, addrlen) < 0) {
+		perror("bind failed");
+		return EXIT_FAILURE;
+	}
+
+	if (listen(server_fd, 16) < 0) {
+		perror("listen failed");
+		return EXIT_FAILURE;
+	}
+
+	bool running = true;
+	ssize_t rlen;
+	char buf[1025];
+	struct buffer *request, *reply;
+	struct reply *rpy;
+
+	struct http *http = http_init();
+
+	http_register_handler(http, "GET", "/", NULL, &handle);
+	http_register_handler(http, "GET", "/nyaa", NULL, &handle);
+	http_register_handler(http, "POST", "/nyaa", NULL, &handle);
+
+	while (running) {
+		if ((client_fd = accept(server_fd,
+						(struct sockaddr*)&addr, (socklen_t*)&addrlen)) < 0) {
+			perror("accept failed");
+			return EXIT_FAILURE;
+		}
+		
+		if ((rlen = read(client_fd, buf, 1024)) < 0) {
+			perror("read failed");
+			return EXIT_FAILURE;
+		}
+
+		buf[rlen] = '\0';
+		request = buf_new(buf);
+
+		while (rlen >= 1024) {
+			if ((rlen = read(client_fd, buf, 1024)) < 0) {
+				perror("read failed");
+				return EXIT_FAILURE;
+			}
+			buf[rlen] = '\0';
+			buf_append(request, buf);
+		}
+
+		printf("%s\n", request->data);
+
+		rpy = http_handle_request(http, request);
+		reply = http_build_reply(rpy);
+		free(rpy);
+
+		write(client_fd, reply->data, reply->size);
+
+		buf_del(&request);
+
+		close(client_fd);
+	}
+}
-- 
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