2023-02-09 09:25:15 +00:00
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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2023-02-09 12:35:05 +00:00
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#include <stdlib.h>
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#include <string.h>
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2023-02-09 09:25:15 +00:00
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#include <sys/socket.h>
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#include <unistd.h>
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2023-02-09 12:35:05 +00:00
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typedef enum {
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HttpMethodGet,
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HttpMethodPost,
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} HttpMethod;
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typedef struct {
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HttpMethod method;
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size_t path_index, path_length;
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size_t content_length;
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} HttpRequestHeader;
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HttpRequestHeader parse_http_request_header(const char* message, size_t message_size)
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{
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size_t i = 0;
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// parse method
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HttpMethod method;
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if (i + 3 < message_size && strncmp(&message[0], "GET", 3)) {
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method = HttpMethodGet;
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i += 3;
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} else if (i + 4 < message_size && strncmp(&message[0], "POST", 4)) {
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method = HttpMethodPost;
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i += 4;
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} else {
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printf("error: header parse fail #1\n");
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exit(1);
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}
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// skip space
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i += 1;
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if (i >= message_size) { }
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return (HttpRequestHeader) { 0 };
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}
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2023-02-09 09:25:15 +00:00
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const uint16_t port = 8000;
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int main(void)
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{
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printf("starting server...\n");
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int server_socket = socket(AF_INET, SOCK_STREAM, 0);
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if (server_socket < 0) {
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printf("error: could not open socket\n");
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return 1;
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}
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struct sockaddr_in server;
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server.sin_addr.s_addr = inet_addr("127.0.0.1");
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server.sin_family = AF_INET;
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server.sin_port = htons(port);
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if (bind(server_socket, (struct sockaddr*)&server, sizeof(server)) > 0) {
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printf("error: could not bind socket\n");
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return 1;
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}
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if (listen(server_socket, SOMAXCONN) < 0) {
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printf("error: could not listen on server");
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return 1;
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}
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printf("listening on port %d\n", port);
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while (true) {
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struct sockaddr_in client;
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socklen_t client_size;
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printf("waiting for client...\n");
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int client_socket = accept(server_socket, (struct sockaddr*)&client, &client_size);
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if (client_socket < 0) {
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printf("error: could not accept connection\n");
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continue;
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}
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printf("client connected\n");
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while (true) {
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uint8_t buffer[8192] = { 0 };
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ssize_t read_size = recv(client_socket, buffer, 8192, 0);
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if (read_size < 0) {
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printf("error: could not recieve\n");
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break;
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} else if (read_size == 0) {
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printf("client disconnected\n");
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break;
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}
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printf("recieved:\n%s\n", buffer);
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uint8_t send_buffer[]
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= "HTTP/1.1 200 OK\r\n"
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"Content-Type: text/html\r\n"
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"\r\n"
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"<!DOCTYPE><html><head><meta charset=\"utf-8\"><title>hej med "
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"dig</title></head><body><h1>fuck c hashtag</h1></body></html>\r\n"
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"\r\n";
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ssize_t written = write(client_socket, send_buffer, sizeof(send_buffer));
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if (written < 0) {
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printf("error: could not write\n");
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continue;
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}
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printf("disconnecting client\n");
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close(client_socket);
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}
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}
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return 0;
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}
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