Full rewrite

This commit is contained in:
2025-05-07 23:57:07 +02:00
parent 82ef7ee170
commit 24736bc780
23 changed files with 4737 additions and 5791 deletions
-51
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@@ -1,51 +0,0 @@
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include "../tinyhttp.h"
sig_atomic_t should_exit = 0;
static void
signal_handler(int sig)
{
if (sig == SIGINT)
should_exit = 1;
}
int main(void)
{
signal(SIGINT, signal_handler);
TinyHTTPServerConfig config = {
.reuse = 1,
.plain_addr = "127.0.0.1",
.plain_port = 8080,
.plain_backlog = 32,
};
TinyHTTPServer *server = tinyhttp_server_init(config);
if (server == NULL)
return -1;
while (!should_exit) {
int ret;
TinyHTTPRequest *req;
TinyHTTPResponse res;
ret = tinyhttp_server_wait(server, &req, &res, 1000);
if (ret < 0) return -1; // Error
if (ret > 0) continue; // Timeout
tinyhttp_response_status(res, 200);
tinyhttp_response_body(res, "Hello, world!", -1);
//tinyhttp_response_undo(res);
//tinyhttp_response_status(res, 500);
tinyhttp_response_send(res);
}
tinyhttp_server_free(server);
return 0;
}
-271
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@@ -1,271 +0,0 @@
#include <stdio.h>
#include <signal.h>
#include "../tinyhttp.h"
/////////////////////////////////////////////////////////////////
// CONFIGURATION
/////////////////////////////////////////////////////////////////
// Network stuff
#define ADDR "127.0.0.1"
#define PORT 8080
#define REUSE 1
#define BACKLOG 32
// Social stuff
#define MAX_USERS 32
#define MAX_POSTS 32
#define MAX_USERNAME 128
#define MAX_PASSWORD 256
#define MAX_BIO 512
#define MAX_CONTENT 512
/////////////////////////////////////////////////////////////////
// UTILITIES
/////////////////////////////////////////////////////////////////
typedef struct {
char *ptr;
ptrdiff_t len;
} string;
#define S(X) ((string) {(X), sizeof(X)-1})
static string trim(string s)
{
int i = 0;
while (i < s.len && (s.ptr[i] == ' ' || s.ptr[i] == '\t'))
i++;
if (i == s.len) {
s.ptr = NULL;
s.len = 0;
} else {
s.ptr += i;
s.len -= i;
while (s.ptr[s.len-1] == ' ' || s.ptr[s.len-1] == '\n')
s.len--;
}
return s;
}
static int copy(string src, string *dst, char *mem, int cap)
{
if (src.len > cap)
return -1;
memcpy(mem, src.ptr, src.len);
dst->ptr = mem;
dst->len = src.len;
return 0;
}
/////////////////////////////////////////////////////////////////
// BUSINESS LOGIC
/////////////////////////////////////////////////////////////////
typedef struct {
string name;
string pass;
string bio;
char name_mem[MAX_USERNAME];
char pass_mem[MAX_PASSWORD];
char bio_mem[MAX_BIO];
} User;
typedef struct {
int id;
string author;
string content;
char author_mem[MAX_USERNAME];
char content_mem[MAX_CONTENT];
} Post;
static User users[MAX_USERS];
static int user_count = 0;
static Post posts[MAX_POSTS];
static int posts_head = 0;
static int posts_count = 0;
static void init_users_and_posts(void)
{
// TODO
}
static int find_user(string name)
{
for (int i = 0; i < user_count; i++)
if (streq(name, users[i].name))
return i;
return -1;
}
static int create_user(string name, string pass)
{
name = trim(name);
pass = trim(pass);
if (name.len == 0 || pass.len == 0)
return -1;
if (find_user(name) != -1)
return -1;
if (user_count == MAX_USERS)
return -1;
User *user = &users[user_count];
if (copy(name, &user->name, user->name_mem, sizeof(user->name_mem)) < 0 &&
copy(pass, &user->pass, user->pass_mem, sizeof(user->pass_mem)) < 0)
return -1;
user_count++;
return 0;
}
static int delete_user(string name)
{
int i = find_user(name);
if (i == -1)
return -1;
// TODO
}
static int create_post(string author, string content)
{
// TODO
}
static int delete_post(int id)
{
// TODO
}
static int modify_post(int id, string new_content)
{
// TODO
}
/////////////////////////////////////////////////////////////////
// ENDPOINTS
/////////////////////////////////////////////////////////////////
#define MAX_SESSIONS 32
typedef struct {
int id;
string name;
char name_mem[MAX_USERNAME];
} Session;
static Session sessions[MAX_SESSIONS];
static int session_count = 0;
static void init_sessions(void)
{
for (int i = 0; i < MAX_SESSIONS; i++)
sessions[i].id = -1;
}
static int find_session(int id)
{
for (int i = 0; i < MAX_SESSIONS; i++)
if (sessions[i].id == id)
return i;
return -1;
}
static int create_session(string name)
{
// TODO
}
static int delete_session(string name)
{
// TODO
}
// TODO
/////////////////////////////////////////////////////////////////
// ENTRY POINT
/////////////////////////////////////////////////////////////////
static sig_atomic_t should_exit = 0;
static void
signal_handler(int sig)
{
if (sig == SIGINT)
should_exit = 1;
}
int main(void)
{
signal(SIGINT, signal_handler);
init_users_and_posts();
init_sessions();
TinyHTTPServerConfig config = {
.reuse = REUSE,
.plain_addr = ADDR,
.plain_port = PORT,
.plain_backlog = BACKLOG,
};
TinyHTTPServer *server = tinyhttp_server_init(config);
if (server == NULL)
return -1;
while (!should_exit) {
int ret;
TinyHTTPRequest *req;
TinyHTTPResponse res;
ret = tinyhttp_server_wait(server, &req, &res, 1000);
if (ret < 0) return -1; // Error
if (ret > 0) continue; // Timeout
char path_mem[1<<10];
TinyHTTPString path;
if (tinyhttp_normalizepath(req->path, &path, path_mem, sizeof(path_mem)) < 0) {
tinyhttp_response_status(res, 200);
tinyhttp_response_send(res);
continue;
}
TinyHTTPString sessid = tinyhttp_getcookie(req, TINYHTTP_STRING("sessid"));
if (tinyhttp_streq(path, TINYHTTP_STRING("/users"))) {
tinyhttp_response_status(res, 200);
tinyhttp_response_body(res, "<html><head><title>Users</title></head><body><ul>", -1);
for (int i = 0; i < user_count; i++)
tinyhttp_response_body(res, "<li><a href=\"/users/???\">???</a></li>", -1);
tinyhttp_response_body(res, "</ul></body></html>", -1);
tinyhttp_response_send(res);
continue;
}
if (tinyhttp_streq(path, TINYHTTP_STRING("/posts"))) {
tinyhttp_response_status(res, 200);
tinyhttp_response_body(res, "<html><head><title>Posts</title></head><body><ul>", -1);
for (int i = 0; i < user_count; i++)
tinyhttp_response_body(res, "<li><a href=\"/posts/???\">???</a></li>", -1);
tinyhttp_response_body(res, "</ul></body></html>", -1);
tinyhttp_response_send(res);
continue;
}
tinyhttp_response_status(res, 404);
tinyhttp_response_body(res, "<html><head><title>Not Found</title></head><body>Nothing here!</body></html>", -1);
tinyhttp_response_send(res);
}
tinyhttp_server_free(server);
return 0;
}
-67
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@@ -1,67 +0,0 @@
#include "../tinyhttp.h"
// TODO: Complete this example
int main(void)
{
SOCKET listen_fd = socket(AF_INET, SOCK_STREAM, 0);
if (listen_fd == INVALID_SOCKET)
return -1;
for (;;) {
SOCKET client_fd = accept(listen_fd, NULL, NULL);
if (client_fd == INVALID_SOCKET)
continue;
TinyHTTPStream stream;
tinyhttp_stream_init(&stream, memfunc, NULL);
int state = tinyhttp_stream_state(&stream);
while (!(state & TINYHTTP_STREAM_READY)) {
ASSERT(state & TINYHTTP_STREAM_RECV);
char *dst;
ptrdiff_t cap;
dst = tinyhttp_stream_recv_buf(&stream, &cap);
int ret = recv(client_fd, dst, cap, 0);
if (ret < 0) {
// TODO
}
tinyhttp_stream_recv_ack(&stream, ret);
state = tinyhttp_stream_state(&stream);
}
TinyHTTPRequest *request = tinyhttp_stream_request(&stream);
tinyhttp_stream_response_status(&stream, 200);
tinyhttp_stream_response_body(&stream, "Hello, world!", -1);
tinyhttp_stream_response_send(&stream);
while (state & TINYHTTP_STREAM_SEND) {
char *src;
ptrdiff_t len;
src = tinyhttp_stream_send_buf(&stream, &len);
int ret = send(client_fd, src, len, 0);
if (ret < 0) {
// TODO
}
tinyhttp_stream_send_ack(&stream, ret);
state = tinyhttp_stream_state(&stream);
}
tinyhttp_stream_free(&stream);
CLOSESOCKET(client_fd);
}
CLOSESOCKET(listen_fd);
return 0;
}
-107
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@@ -1,107 +0,0 @@
#include <assert.h>
#if defined(_WIN32)
#include <winsock2.h>
#define CLOSESOCKET closesocket
#elif defined(__linux__)
#include <unistd.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <arpa/inet.h>
#define CLOSESOCKET close
#else
#error "Only Windows and Linux are supported"
#endif
#include "../tinyhttp.h"
#define PORT 8080
#define ADDR "127.0.0.1"
// TODO: Complete this
void respond(TinyHTTPStream *stream)
{
TinyHTTPRequest *req = tinyhttp_stream_request(stream);
if (req->method != TINYHTTP_METHOD_GET)
tinyhttp_stream_response_status(stream, 405);
else
tinyhttp_stream_response_status(stream, 200);
tinyhttp_stream_response_send(stream);
}
int main(void)
{
int listen_fd = socket(AF_INET, SOCK_STREAM, 0);
struct sockaddr_in buf;
buf.sin_family = AF_INET;
buf.sin_port = htons(PORT);
buf.sin_addr.s_addr = inet_addr(ADDR);
bind(listen_fd, (struct sockaddr*) &buf, sizeof(buf));
listen(listen_fd, 32);
int num_conns = 0;
int fds[1000];
TinyHTTPStream streams[1000];
for (int i = 0; i < 1000; i++)
fds[i] = -1;
for (;;) {
// TODO: timeouts
fd_set readset;
fd_set writeset;
FD_ZERO(&readset);
FD_ZERO(&writeset);
FD_SET(listen_fd, &readset);
int max_fd = listen_fd;
for (int i = 0; i < 1000; i++) {
if (fds[i] == -1) continue;
int state = tinyhttp_stream_state(&streams[i]);
if (state & TINYHTTP_STREAM_RECV)
FD_SET(fds[i], &readset);
if (state & TINYHTTP_STREAM_SEND)
FD_SET(fds[i], &writeset);
if (state & (TINYHTTP_STREAM_RECV | TINYHTTP_STREAM_SEND))
if (max_fd < fds[i]) max_fd = fds[i];
}
int num = select(max_fd+1, &readset, &writeset, NULL, NULL);
if (FD_ISSET(listen_fd, &readset)) {
// TODO
}
int ready_queue[1000];
int ready_head = 0;
int ready_count = 0;
for (int i = 0; i < 1000; i++) {
// TODO
}
while (ready_count > 0) {
int idx = ready_queue[ready_head];
TinyHTTPStream *stream = &streams[idx];
TinyHTTPRequest *req = tinyhttp_stream_request(stream);
assert(req);
respond(stream);
ready_head = (ready_head + 1) % 1000;
ready_count--;
if (tinyhttp_stream_request(stream)) {
ready_queue[(ready_head + ready_count) % 1000] = idx;
ready_count++;
}
}
}
CLOSESOCKET(listen_fd);
return 0;
}