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backend: fix webserver

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This commit is contained in:
Simon 2023-02-10 11:11:06 +01:00
parent b4b2305fde
commit 6ca997dafb
1 changed files with 134 additions and 4 deletions
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136
backend/main.c
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@ -1,19 +1,33 @@
#include "http.h" #include "http.h"
#include "native.h" #include "native.h"
#include <signal.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdint.h> #include <stdint.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
const uint16_t port = 8000; const uint16_t port = 8201;
int server_socket = 0;
void int_handler(int a)
{
(void)a;
printf("=== terminated ===\n");
if (server_socket != 0)
close(server_socket);
exit(1);
}
int main(void) int main(void)
{ {
init_sockets(); init_sockets();
signal(SIGINT, &int_handler);
printf("starting server...\n"); printf("starting server...\n");
int server_socket = socket(AF_INET, SOCK_STREAM, 0); server_socket = socket(AF_INET, SOCK_STREAM, 0);
if (server_socket < 0) { if (server_socket < 0) {
printf("error: could not open socket\n"); printf("error: could not open socket\n");
return 1; return 1;
@ -47,9 +61,11 @@ int main(void)
ssize_t read_size = recv(client_socket, buffer, 8192, 0); ssize_t read_size = recv(client_socket, buffer, 8192, 0);
if (read_size < 0) { if (read_size < 0) {
printf("error: could not recieve\n"); printf("error: could not recieve\n");
close_socket(client_socket);
break; break;
} else if (read_size == 0) { } else if (read_size == 0) {
printf("client disconnected\n"); printf("client disconnected\n");
close_socket(client_socket);
break; break;
} }
printf("=== recieved start ===\n%s\n=== recieved end ===\n", buffer); printf("=== recieved start ===\n%s\n=== recieved end ===\n", buffer);
@ -62,7 +78,120 @@ int main(void)
printf("content_length: %ld\n", header.content_length); printf("content_length: %ld\n", header.content_length);
printf("body_index: %ld\n", header.body_index); printf("body_index: %ld\n", header.body_index);
char* path = calloc(header.path_length + 1, sizeof(char));
strncpy(path, (char*)&buffer[header.path_index], header.path_length);
printf("path: %s\n", path);
if (strncmp(path, "/api", 4) == 0) {
// something something api
} else {
if (strstr(path, "..") != NULL) {
uint8_t send_buffer[] uint8_t send_buffer[]
= "HTTP/1.1 400 BAD\r\n"
"Content-Type: text/html\r\n"
"\r\n"
"<!DOCTYPE html><html><head><meta charset=\"utf-8\"><title>Bad "
"request</title></head><body><h1>Fuck you!</h1></body></html>\r\n";
ssize_t written = send(client_socket, send_buffer, sizeof(send_buffer), 0);
if (written < 0) {
printf("error: could not write\n");
close_socket(client_socket);
break;
}
} else if (header.path_length == 0 || strncmp(path, "/", header.path_length) == 0) {
FILE* file = fopen("../frontend/index.html", "r");
if (file == NULL) {
printf("error: could not open file\n");
close_socket(client_socket);
break;
}
uint8_t send_buffer[] = "HTTP/1.1 200 OK\r\n"
"Content-Type: text/html\r\n"
"\r\n";
ssize_t written = send(client_socket, send_buffer, sizeof(send_buffer), 0);
if (written < 0) {
printf("error: could not write\n");
close_socket(client_socket);
break;
}
char char_read;
while ((char_read = (char)fgetc(file)) != EOF) {
write(client_socket, &char_read, sizeof(char));
}
} else {
char rootpath[] = "../frontend";
size_t filepath_size = sizeof(rootpath) + header.path_length + 1;
char* filepath = calloc(filepath_size, sizeof(char));
snprintf(filepath, filepath_size, "%s%s", rootpath, path);
char* dot = strrchr(path, '.');
char mime_type[20] = { 0 };
char file_flag[3] = { 'r', 0 };
if (dot != NULL && strncmp(dot, ".html", 5) == 0) {
snprintf(mime_type, 20, "text/html");
} else if (dot != NULL && strncmp(dot, ".css", 4) == 0) {
snprintf(mime_type, 20, "text/css");
} else if (dot != NULL && strncmp(dot, ".js", 3) == 0) {
snprintf(mime_type, 20, "text/javascript");
} else if (dot != NULL && strncmp(dot, ".ico", 4) == 0) {
snprintf(mime_type, 20, "image/x-icon");
} else if (dot != NULL && strncmp(dot, ".jpg", 4) == 0) {
snprintf(mime_type, 20, "image/jpeg");
file_flag[1] = 'b';
} else if (dot != NULL && strncmp(dot, ".png", 4) == 0) {
snprintf(mime_type, 20, "image/png");
file_flag[1] = 'b';
} else if (dot != NULL && strncmp(dot, ".woff2", 6) == 0) {
snprintf(mime_type, 20, "font/woff2");
file_flag[1] = 'b';
} else {
printf("error: unknown file type\n");
close_socket(client_socket);
break;
}
printf("\n %s | %s \n", file_flag, filepath);
FILE* file = fopen(filepath, file_flag);
if (file == NULL) {
printf("error: could not open file\n");
close_socket(client_socket);
break;
}
char send_buffer_1[] = "HTTP/1.1 200 OK\r\n"
"Content-Type: ";
char send_buffer_2[] = "\r\n"
"\r\n";
ssize_t written
= send(client_socket, send_buffer_1, strlen(send_buffer_1) - 1, 0);
if (written < 0) {
printf("error: could not write\n");
close_socket(client_socket);
break;
}
written = send(client_socket, mime_type, strlen(mime_type), 0);
if (written < 0) {
printf("error: could not write\n");
close_socket(client_socket);
break;
}
written = send(client_socket, send_buffer_2, strlen(send_buffer_2), 0);
if (written < 0) {
printf("error: could not write\n");
close_socket(client_socket);
break;
}
int char_read;
while ((char_read = fgetc(file)) != EOF) {
write(client_socket, (char*)&char_read, sizeof(char));
}
free(filepath);
fclose(file);
}
}
free(path);
/* uint8_t send_buffer[]
= "HTTP/1.1 200 OK\r\n" = "HTTP/1.1 200 OK\r\n"
"Content-Type: text/html\r\n" "Content-Type: text/html\r\n"
"\r\n" "\r\n"
@ -72,8 +201,9 @@ int main(void)
ssize_t written = send(client_socket, send_buffer, sizeof(send_buffer), 0); ssize_t written = send(client_socket, send_buffer, sizeof(send_buffer), 0);
if (written < 0) { if (written < 0) {
printf("error: could not write\n"); printf("error: could not write\n");
close_socket(client_socket);
break; break;
} } */
printf("disconnecting client\n"); printf("disconnecting client\n");
close_socket(client_socket); close_socket(client_socket);
break; break;