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Fix compiler errors

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This commit is contained in:
cozis
2025-11-21 18:30:35 +01:00
parent aab1b8e7b8
commit 3c2ef70c66
12 changed files with 743 additions and 267 deletions
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Makefile
+1 -1
View File
@@ -6,7 +6,7 @@ chttp.c chttp.h: $(wildcard src/*.c src/*.h) misc/amalg.py Makefile
python misc/amalg.py
example: main.c chttp.c chttp.h
gcc main.c chttp.c -o example.exe -Wfatal-errors
gcc main.c chttp.c -o example -Wfatal-errors
clean:
rm chttp.c chttp.h
chttp.c
+297 -104
View File
@@ -1582,7 +1582,7 @@ static int set_socket_blocking(NATIVE_SOCKET sock, bool value)
return 0;
}
static NATIVE_SOCKET create_listen_socket(String addr,
static NATIVE_SOCKET create_listen_socket(HTTP_String addr,
Port port, bool reuse_addr, int backlog)
{
NATIVE_SOCKET sock = socket(AF_INET, SOCK_STREAM, 0);
@@ -1683,7 +1683,7 @@ void socket_manager_free(SocketManager *sm)
}
int socket_manager_listen_tcp(SocketManager *sm,
String addr, Port port)
HTTP_String addr, Port port)
{
if (sm->plain_sock != NATIVE_SOCKET_INVALID)
return -1;
@@ -1698,8 +1698,8 @@ int socket_manager_listen_tcp(SocketManager *sm,
}
int socket_manager_listen_tls(SocketManager *sm,
String addr, Port port, String cert_file_name,
String key_file_name)
HTTP_String addr, Port port, HTTP_String cert_file_name,
HTTP_String key_file_name)
{
if (sm->secure_sock != NATIVE_SOCKET_INVALID)
return -1;
@@ -1966,38 +1966,41 @@ int socket_manager_wakeup(SocketManager *sm)
}
static int socket_manager_register_events_nolock(
SocketManager *sm, struct pollfd *polled, int max_polled)
SocketManager *sm, EventRegister *reg)
{
// The poll array must be able to hold descriptors
// for a socket manager at full capacity. Note that
// other than having a number of connection sockets,
// the manager also needs 2 for the listeners and
// one for the wakeup self-pipe.
if (max_polled < sm->max_used+3)
if (reg->max_polled < sm->max_used+3)
return -1;
int num_polled = 0;
reg->num_polled = 0;
polled[num_polled].fd = sm->wait_sock;
polled[num_polled].events = 0;
polled[num_polled].revents = 0;
num_polled++;
reg->polled[reg->num_polled].fd = sm->wait_sock;
reg->polled[reg->num_polled].events = POLLIN;
reg->polled[reg->num_polled].revents = 0;
reg->ptrs[reg->num_polled] = NULL;
reg->num_polled++;
// If the manager isn't at full capacity, monitor
// the listener sockets for incoming connections.
if (sm->num_used < sm->max_used) {
if (sm->plain_sock != NATIVE_SOCKET_INVALID) {
polled[num_polled].fd = sm->plain_sock;
polled[num_polled].events = POLLIN;
polled[num_polled].revents = 0;
num_polled++;
reg->polled[reg->num_polled].fd = sm->plain_sock;
reg->polled[reg->num_polled].events = POLLIN;
reg->polled[reg->num_polled].revents = 0;
reg->ptrs[reg->num_polled] = NULL;
reg->num_polled++;
}
if (sm->secure_sock != NATIVE_SOCKET_INVALID) {
polled[num_polled].fd = sm->secure_sock;
polled[num_polled].events = POLLIN;
polled[num_polled].revents = 0;
num_polled++;
reg->polled[reg->num_polled].fd = sm->secure_sock;
reg->polled[reg->num_polled].events = POLLIN;
reg->polled[reg->num_polled].revents = 0;
reg->ptrs[reg->num_polled] = NULL;
reg->num_polled++;
}
}
@@ -2012,28 +2015,25 @@ static int socket_manager_register_events_nolock(
continue;
j++;
if (s->state == SOCKET_STATE_DIED || s->state == SOCKET_STATE_ESTABLISHED_READY)
return 0;
if (s->events) {
polled[num_polled].fd = s->sock;
polled[num_polled].events = s->events;
polled[num_polled].revents = 0;
num_polled++;
reg->polled[reg->num_polled].fd = s->sock;
reg->polled[reg->num_polled].events = s->events;
reg->polled[reg->num_polled].revents = 0;
reg->ptrs[reg->num_polled] = s;
reg->num_polled++;
}
}
return num_polled;
return 0;
}
int socket_manager_register_events(SocketManager *sm,
struct pollfd *polled, int max_polled)
EventRegister *reg)
{
if (mutex_lock(&sm->mutex) < 0)
return -1;
int ret = socket_manager_register_events_nolock(
sm, polled, max_polled);
int ret = socket_manager_register_events_nolock(sm, reg);
if (mutex_unlock(&sm->mutex) < 0)
return -1;
@@ -2052,14 +2052,14 @@ static Socket *handle_to_socket(SocketManager *sm, SocketHandle handle)
}
static int socket_manager_translate_events_nolock(
SocketManager *sm, SocketEvent *events, int max_events,
struct pollfd *polled, int num_polled)
SocketManager *sm, SocketEvent *events,
EventRegister *reg)
{
int num_events = 0;
for (int i = 0; i < num_polled; i++) {
for (int i = 0; i < reg->num_polled; i++) {
if (polled[i].fd == sm->plain_sock ||
polled[i].fd == sm->secure_sock) {
if (reg->polled[i].fd == sm->plain_sock ||
reg->polled[i].fd == sm->secure_sock) {
// We only listen for input events from the listener
// if the socket pool isn't fool. This ensures that
@@ -2075,7 +2075,7 @@ static int socket_manager_translate_events_nolock(
// Determine whether the event came from
// the encrypted listener or not.
bool secure = (polled[i].fd == sm->secure_sock);
bool secure = (reg->polled[i].fd == sm->secure_sock);
Socket *s = sm->sockets;
while (s->state != SOCKET_STATE_FREE) {
@@ -2083,7 +2083,7 @@ static int socket_manager_translate_events_nolock(
assert(s - sm->sockets < + sm->max_used);
}
NATIVE_SOCKET sock = accept(polled[i].fd, NULL, NULL);
NATIVE_SOCKET sock = accept(reg->polled[i].fd, NULL, NULL);
if (sock == NATIVE_SOCKET_INVALID)
continue;
@@ -2106,12 +2106,14 @@ static int socket_manager_translate_events_nolock(
sm->num_used++;
} else if (polled[i].fd == sm->wait_sock) {
} else if (reg->polled[i].fd == sm->wait_sock) {
// TODO: consume
} else {
if (polled[i].revents)
Socket *s = reg->ptrs[i];
if (reg->polled[i].revents)
socket_update(s);
}
}
@@ -2122,14 +2124,11 @@ static int socket_manager_translate_events_nolock(
continue;
j++;
if (num_events == max_events)
break;
if (s->state == SOCKET_DIED) {
if (s->state == SOCKET_STATE_DIED) {
events[num_events++] = (SocketEvent) {
SOCKET_EVENT_DISCONNECT,
SOCKET_HANDE_INVALID,
SOCKET_HANDLE_INVALID,
s->user
};
@@ -2142,7 +2141,7 @@ static int socket_manager_translate_events_nolock(
if (s->num_addr > 1)
free(s->addrs);
}
s->num_used--;
sm->num_used--;
} else if (s->state == SOCKET_STATE_ESTABLISHED_READY) {
events[num_events++] = (SocketEvent) {
@@ -2157,18 +2156,16 @@ static int socket_manager_translate_events_nolock(
}
int socket_manager_translate_events(SocketManager *sm,
SocketEvent *events, int max_events, struct pollfd *polled,
int num_polled)
SocketEvent *events, EventRegister *reg)
{
if (mutex_lock(&sm->mutex) < 0)
return -1;
socket_manager_translate_events_nolock(
sm, events, max_events, polled, num_polled);
int ret = socket_manager_translate_events_nolock(sm, events, reg);
if (mutex_unlock(&sm->mutex) < 0)
return -1;
return 0;
return ret;
}
static int resolve_connect_targets(ConnectTarget *targets,
@@ -2180,7 +2177,7 @@ static int resolve_connect_targets(ConnectTarget *targets,
case CONNECT_TARGET_NAME:
{
char portstr[16];
int len = snprintf(portstr, sizeof(portstr), "%u", port);
int len = snprintf(portstr, sizeof(portstr), "%u", targets[i].port);
if (len < 0 || len >= (int) sizeof(portstr))
return -1;
@@ -2188,8 +2185,14 @@ static int resolve_connect_targets(ConnectTarget *targets,
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
char hostname[1<<9]; // TODO: Is this a good length?
if (targets[i].name.len >= (int) sizeof(hostname))
return -1;
memcpy(hostname, targets[i].name.ptr, targets[i].name.len);
hostname[targets[i].name.len] = '\0';
struct addrinfo *res = NULL;
int ret = getaddrinfo(pending_connect->hostname, portstr, &hints, &res);
int ret = getaddrinfo(hostname, portstr, &hints, &res);
if (ret != 0)
return -1;
@@ -2206,7 +2209,7 @@ static int resolve_connect_targets(ConnectTarget *targets,
IPv6 ipv6 = *(IPv6*) &((struct sockaddr_in6*)rp->ai_addr)->sin6_addr;
if (num_resolved < max_resolved) {
resolved[num_resolved].is_ipv4 = false;
resolved[num_resolved].ipv4 = ipv6;
resolved[num_resolved].ipv6 = ipv6;
resolved[num_resolved].port = targets[i].port;
num_resolved++;
}
@@ -2237,6 +2240,8 @@ static int resolve_connect_targets(ConnectTarget *targets,
return num_resolved;
}
#define MAX_CONNECT_TARGETS 16
int socket_connect(SocketManager *sm, int num_targets,
ConnectTarget *targets, bool secure, void *user)
{
@@ -2273,10 +2278,29 @@ int socket_connect(SocketManager *sm, int num_targets,
s->state = SOCKET_STATE_PENDING;
s->sock = NATIVE_SOCKET_INVALID;
s->user = user;
s->num_used++;
sm->num_used++;
return 0;
}
static bool would_block(void)
{
#ifdef _WIN32
int err = WSAGetLastError();
return err == WSAEWOULDBLOCK;
#else
return errno == EAGAIN || errno == EWOULDBLOCK;
#endif
}
static bool interrupted(void)
{
#ifdef _WIN32
return false;
#else
return errno == EINTR;
#endif
}
static int socket_recv_nolock(SocketManager *sm, SocketHandle handle,
char *dst, int max)
{
@@ -2354,14 +2378,14 @@ static int socket_send_nolock(SocketManager *sm, SocketHandle handle,
return 0;
}
if (!socket_secure(s)) {
if (!is_secure(s)) {
int ret = send(s->sock, src, len, 0);
if (ret < 0) {
if (would_block()) {
s->state = SOCKET_STATE_ESTABLISHED_WAIT;
s->events = POLLOUT;
} else if (!interrupted()) {
s->state = SOCKET_DIED;
s->state = SOCKET_STATE_DIED;
s->events = 0;
}
ret = 0;
@@ -2402,19 +2426,25 @@ int socket_send(SocketManager *sm, SocketHandle handle,
return ret;
}
void socket_close(SocketManager *sm, SocketHandle handle)
int socket_close(SocketManager *sm, SocketHandle handle)
{
if (mutex_lock(&sm->mutex) < 0)
return -1;
// TODO: maybe we don't want to always set to SHUTDOWN. What if the socket is DIED for instance?
s->state = SOCKET_STATE_SHUTDOWN;
s->events = 0;
socket_update(s);
int ret;
Socket *s = handle_to_socket(sm, handle);
if (s == NULL)
ret = -1;
else {
// TODO: maybe we don't want to always set to SHUTDOWN. What if the socket is DIED for instance?
s->state = SOCKET_STATE_SHUTDOWN;
s->events = 0;
socket_update(s);
}
if (mutex_unlock(&sm->mutex) < 0)
return -1;
return 0;
return ret;
}
int socket_is_secure(SocketManager *sm, SocketHandle handle)
@@ -2440,11 +2470,14 @@ int socket_set_user(SocketManager *sm, SocketHandle handle, void *user)
if (mutex_lock(&sm->mutex) < 0)
return -1;
int ret;
Socket *s = handle_to_socket(sm, handle);
if (s == NULL)
ret = -1;
else
else {
s->user = user;
ret = 0;
}
if (mutex_unlock(&sm->mutex) < 0)
return -1;
@@ -2673,6 +2706,46 @@ void byte_queue_write(ByteQueue *queue, void *ptr, uint32_t len)
}
}
void byte_queue_write_fmt2(ByteQueue *queue,
const char *fmt, va_list args)
{
if (queue->flags & BYTE_QUEUE_ERROR)
return;
va_list args2;
va_copy(args2, args);
byte_queue_write_setmincap(queue, 128);
ByteView dst = byte_queue_write_buf(queue);
int len = vsnprintf(dst.ptr, dst.len, fmt, args);
if (len < 0) {
queue->flags |= BYTE_QUEUE_ERROR;
va_end(args2);
return;
}
if (len > dst.len) {
byte_queue_write_ack(queue, 0);
byte_queue_write_setmincap(queue, len+1);
dst = byte_queue_write_buf(queue);
vsnprintf(dst.ptr, dst.len, fmt, args2);
}
byte_queue_write_ack(queue, len);
va_end(args2);
}
void byte_queue_write_fmt(ByteQueue *queue,
const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
byte_queue_write_fmt2(queue, fmt, args);
va_end(args);
}
ByteQueueOffset byte_queue_offset(ByteQueue *queue)
{
if (queue->flags & BYTE_QUEUE_ERROR)
@@ -2874,6 +2947,16 @@ int http_create_test_certificate(HTTP_String C, HTTP_String O, HTTP_String CN,
// src/client.c
////////////////////////////////////////////////////////////////////////////////////////
void http_client_conn_init(HTTP_ClientConn *conn)
{
// TODO
}
void http_client_conn_free(HTTP_ClientConn *conn)
{
// TODO
}
int http_client_init(HTTP_Client *client)
{
client->num_conns = 0;
@@ -2910,22 +2993,26 @@ int http_client_wakeup(HTTP_Client *client)
return 0;
}
int http_client_get_builder(HTTP_Client *client, HTTP_RequestBuilder *builder)
int http_client_get_builder(HTTP_Client *client,
HTTP_Response *response, HTTP_RequestBuilder *builder)
{
// TODO
}
void http_request_builder_line(HTTP_RequestBuilder builder, xxxx)
void http_request_builder_url(HTTP_RequestBuilder builder,
HTTP_String url)
{
// TODO
}
void http_request_builder_header(HTTP_RequestBuilder builder, String str)
void http_request_builder_header(HTTP_RequestBuilder builder,
HTTP_String str)
{
// TODO
}
void http_request_builder_body(HTTP_RequestBuilder builder, String str)
void http_request_builder_body(HTTP_RequestBuilder builder,
HTTP_String str)
{
// TODO
}
@@ -2936,18 +3023,19 @@ int http_request_builder_send(HTTP_RequestBuilder builder)
}
int http_client_register_events(HTTP_Client *client,
struct pollfd *polled, int max_polled)
EventRegister *reg)
{
return socket_manager_register_events(
&client->sockets, polled, max_polled);
if (socket_manager_register_events(&client->sockets, reg) < 0)
return -1;
return 0;
}
int http_client_process_events(HTTP_Client *client,
struct pollfd *polled, int num_polled)
EventRegister *reg)
{
SocketEvent events[HTTP_CLIENT_CAPACITY];
int num_events = socket_manager_translate_events(
&client->sockets, polled, num_polled);
&client->sockets, events, reg);
for (int i = 0; i < num_events; i++) {
@@ -2967,9 +3055,9 @@ int http_client_process_events(HTTP_Client *client,
}
bool http_client_next_response(HTTP_Client *client,
HTTP_Response **response);
HTTP_Response **response)
{
if (server->num_ready == 0)
if (client->num_ready == 0)
return false;
HTTP_ClientConn *conn = &client->conns[client->ready_head];
@@ -2996,6 +3084,7 @@ static void http_server_conn_init(HTTP_ServerConn *conn,
{
conn->state = HTTP_SERVER_CONN_BUFFERING;
conn->handle = handle;
conn->closing = false;
byte_queue_init(&conn->input, input_buffer_limit);
byte_queue_init(&conn->output, output_buffer_limit);
}
@@ -3012,8 +3101,10 @@ int http_server_init(HTTP_Server *server)
server->output_buffer_limit = 1<<20;
server->num_conns = 0;
for (int i = 0; i < HTTP_SERVER_CAPACITY; i++)
for (int i = 0; i < HTTP_SERVER_CAPACITY; i++) {
server->conns[i].state = HTTP_SERVER_CONN_FREE;
server->conns[i].gen = 0;
}
server->num_ready = 0;
server->ready_head = 0;
@@ -3049,7 +3140,7 @@ void http_server_set_output_limit(HTTP_Server *server, uint32_t limit)
}
int http_server_listen_tcp(HTTP_Server *server,
String addr, Port port)
HTTP_String addr, Port port)
{
if (socket_manager_listen_tcp(&server->sockets, addr, port) < 0)
return -1;
@@ -3057,8 +3148,8 @@ int http_server_listen_tcp(HTTP_Server *server,
}
int http_server_listen_tls(HTTP_Server *server,
String addr, Port port, String cert_file_name,
String key_file_name)
HTTP_String addr, Port port, HTTP_String cert_file_name,
HTTP_String key_file_name)
{
if (socket_manager_listen_tls(&server->sockets, addr,
port, cert_file_name, key_file_name) < 0)
@@ -3083,9 +3174,11 @@ int http_server_wakeup(HTTP_Server *server)
}
int http_server_register_events(HTTP_Server *server,
struct pollfd *polled, int max_polled)
EventRegister *reg)
{
return socket_manager_register_events(&server->sockets, polled, max_polled);
if (socket_manager_register_events(&server->sockets, reg) < 0)
return -1;
return 0;
}
// Look at the head of the input buffer to see if
@@ -3133,27 +3226,11 @@ check_request_buffer(HTTP_Server *server, HTTP_ServerConn *conn)
}
}
bool http_server_next_request(HTTP_Server *server,
HTTP_Request **request, HTTP_ResponseBuilder *builder)
{
if (server->num_ready == 0)
return false;
HTTP_ServerConn *conn = &server->conns[server->ready_head];
server->ready_head = (server->ready_head + 1) % HTTP_SERVER_CAPACITY;
server->num_ready--;
assert(conn->state == HTTP_SERVER_CONN_WAIT_STATUS);
*request = &conn->request;
*builder = (HTTP_ResponseBuilder) { server, conn - server->conns, conn->gen };
return true;
}
int http_server_process_events(HTTP_Server *server,
struct pollfd *polled, int num_polled)
EventRegister *reg)
{
SocketEvent events[HTTP_SERVER_CAPACITY];
int num_events = socket_manager_translate_events(&server->sockets, polled, num_polled);
int num_events = socket_manager_translate_events(&server->sockets, events, reg);
if (num_events < 0)
return -1;
@@ -3236,6 +3313,22 @@ int http_server_process_events(HTTP_Server *server,
return 0;
}
bool http_server_next_request(HTTP_Server *server,
HTTP_Request **request, HTTP_ResponseBuilder *builder)
{
if (server->num_ready == 0)
return false;
HTTP_ServerConn *conn = &server->conns[server->ready_head];
server->ready_head = (server->ready_head + 1) % HTTP_SERVER_CAPACITY;
server->num_ready--;
assert(conn->state == HTTP_SERVER_CONN_WAIT_STATUS);
*request = &conn->request;
*builder = (HTTP_ResponseBuilder) { server, conn - server->conns, conn->gen };
return true;
}
// Get a connection pointer from a response builder.
// If the builder is invalid, returns NULL.
// Note that only connections in the responding states
@@ -3252,17 +3345,86 @@ builder_to_conn(HTTP_ResponseBuilder builder)
if (builder.index > HTTP_SERVER_CAPACITY)
return NULL;
HTTP_ServerConn *conn = server->conns[builder.index];
HTTP_ServerConn *conn = &server->conns[builder.index];
if (builder.gen != conn->gen)
return NULL;
return conn;
}
static const char*
get_status_text(int code)
{
switch(code) {
case 100: return "Continue";
case 101: return "Switching Protocols";
case 102: return "Processing";
case 200: return "OK";
case 201: return "Created";
case 202: return "Accepted";
case 203: return "Non-Authoritative Information";
case 204: return "No Content";
case 205: return "Reset Content";
case 206: return "Partial Content";
case 207: return "Multi-Status";
case 208: return "Already Reported";
case 300: return "Multiple Choices";
case 301: return "Moved Permanently";
case 302: return "Found";
case 303: return "See Other";
case 304: return "Not Modified";
case 305: return "Use Proxy";
case 306: return "Switch Proxy";
case 307: return "Temporary Redirect";
case 308: return "Permanent Redirect";
case 400: return "Bad Request";
case 401: return "Unauthorized";
case 402: return "Payment Required";
case 403: return "Forbidden";
case 404: return "Not Found";
case 405: return "Method Not Allowed";
case 406: return "Not Acceptable";
case 407: return "Proxy Authentication Required";
case 408: return "Request Timeout";
case 409: return "Conflict";
case 410: return "Gone";
case 411: return "Length Required";
case 412: return "Precondition Failed";
case 413: return "Request Entity Too Large";
case 414: return "Request-URI Too Long";
case 415: return "Unsupported Media Type";
case 416: return "Requested Range Not Satisfiable";
case 417: return "Expectation Failed";
case 418: return "I'm a teapot";
case 420: return "Enhance your calm";
case 422: return "Unprocessable Entity";
case 426: return "Upgrade Required";
case 429: return "Too many requests";
case 431: return "Request Header Fields Too Large";
case 449: return "Retry With";
case 451: return "Unavailable For Legal Reasons";
case 500: return "Internal Server Error";
case 501: return "Not Implemented";
case 502: return "Bad Gateway";
case 503: return "Service Unavailable";
case 504: return "Gateway Timeout";
case 505: return "HTTP Version Not Supported";
case 509: return "Bandwidth Limit Exceeded";
}
return "???";
}
static void
write_status(HTTP_ServerConn *conn, int status)
{
byte_queue_write(&conn->output, xxx);
byte_queue_write_fmt(&conn->output,
"HTTP/1.1 %d %s\r\n",
status, get_status_text(status));
}
void http_response_builder_status(HTTP_ResponseBuilder builder, int status)
@@ -3282,7 +3444,7 @@ void http_response_builder_status(HTTP_ResponseBuilder builder, int status)
conn->state = HTTP_SERVER_CONN_WAIT_HEADER;
}
void http_response_builder_header(HTTP_ResponseBuilder builder, String str)
void http_response_builder_header(HTTP_ResponseBuilder builder, HTTP_String str)
{
HTTP_ServerConn *conn = builder_to_conn(builder);
if (conn == NULL)
@@ -3291,17 +3453,48 @@ void http_response_builder_header(HTTP_ResponseBuilder builder, String str)
if (conn->state != HTTP_SERVER_CONN_WAIT_HEADER)
return;
byte_queue_write(&conn->output, xxx);
// TODO: Check that the header is valid
byte_queue_write(&conn->output, str.ptr, str.len);
byte_queue_write(&conn->output, "\r\n", 2);
}
static void append_special_headers(HTTP_ServerConn *conn)
{
// TODO
HTTP_String s;
if (conn->closing) {
s = HTTP_STR("Connection: Close");
byte_queue_write(&conn->output, s.ptr, s.len);
} else {
s = HTTP_STR("Connection: Keep-Alive");
byte_queue_write(&conn->output, s.ptr, s.len);
}
s = HTTP_STR("Content-Length: ");
byte_queue_write(&conn->output, s.ptr, s.len);
conn->content_length_value_offset = byte_queue_offset(&conn->output);
#define TEN_SPACES " "
_Static_assert(sizeof(TEN_SPACES) == 10+1);
s = HTTP_STR(TEN_SPACES "\r\n");
byte_queue_write(&conn->output, s.ptr, s.len);
byte_queue_write(&conn->output, "\r\n", 2);
conn->content_length_offset = byte_queue_offset(&conn->output);
}
static void patch_special_headers(HTTP_ServerConn *conn)
{
// TODO
int content_length = byte_queue_size_from_offset(&conn->output, conn->content_length_offset);
char tmp[11];
int len = snprintf(tmp, sizeof(tmp), "%d", content_length);
assert(len > 0 && len < 11);
byte_queue_patch(&conn->output, conn->content_length_value_offset, tmp, len);
}
void http_response_builder_body(HTTP_ResponseBuilder builder, String str)
chttp.h
+74 -29
View File
@@ -19,6 +19,8 @@
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#include <limits.h>
#include <stdarg.h>
#include <unistd.h>
#include <pthread.h>
#include <poll.h>
@@ -457,7 +459,7 @@ void socket_manager_free(SocketManager *sm);
// can only be used once per manager.
// Returns 0 on success, -1 on error.
int socket_manager_listen_tcp(SocketManager *sm,
String addr, Port port);
HTTP_String addr, Port port);
// Same as the previous function, but incoming
// connections will be interpreted as TLS. You
@@ -467,8 +469,8 @@ int socket_manager_listen_tcp(SocketManager *sm,
// and secure connections.
// Returns 0 on success, -1 on error.
int socket_manager_listen_tls(SocketManager *sm,
String addr, Port port, String cert_file_name,
String key_file_name);
HTTP_String addr, Port port, HTTP_String cert_file_name,
HTTP_String key_file_name);
// If the socket manager was configures to accept
// TLS connections, this adds additional certificates
@@ -485,22 +487,32 @@ int socket_manager_add_certificate(SocketManager *sm,
// Returns 0 on success, -1 on error.
int socket_manager_wakeup(SocketManager *sm);
// Writes to the polled array the list of sockets
// that the socket manager is monitoring and which
// events associated to that socket.
// Returns the number of items written to the polled
// array.
typedef struct {
void **ptrs;
struct pollfd *polled;
int num_polled;
int max_polled;
} EventRegister;
// Resets the event register with the list of descriptors
// the socket manager wants monitored. Returns 0 on
// success, -1 if the event register's capacity isn't
// large enough.
int socket_manager_register_events(SocketManager *sm,
struct pollfd *polled, int max_polled);
EventRegister *reg);
// After poll() is called on the previously registered
// pollfd array and the revents fields are set, this
// function processes those events to produce higher-level
// socket events. Returns the number of socket events
// written to the output array, or -1 on error.
//
// The maximum number of events this will write
// to the events array is equal to the numero of
// socket structs provided to the socket manager
// via the init function.
int socket_manager_translate_events(SocketManager *sm,
SocketEvent *events, int max_events, struct pollfd *polled,
int num_polled);
SocketEvent *events, EventRegister *reg);
typedef enum {
CONNECT_TARGET_NAME,
@@ -531,7 +543,7 @@ int socket_recv(SocketManager *sm, SocketHandle handle,
int socket_send(SocketManager *sm, SocketHandle handle,
char *src, int len);
void socket_close(SocketManager *sm, SocketHandle handle);
int socket_close(SocketManager *sm, SocketHandle handle);
// Returns -1 on error, 0 if the socket was accepted
// from the plaintext listener, or 1 if it was accepted
@@ -539,7 +551,7 @@ void socket_close(SocketManager *sm, SocketHandle handle);
int socket_is_secure(SocketManager *sm, SocketHandle handle);
// Set the user pointer of a socket
void socket_set_user(SocketManager *sm, SocketHandle handle, void *user);
int socket_set_user(SocketManager *sm, SocketHandle handle, void *user);
////////////////////////////////////////////////////////////////////////////////////////
// src/byte_queue.h
@@ -663,6 +675,13 @@ int byte_queue_write_setmincap(ByteQueue *queue, uint32_t mincap);
// short hand for write_buf/memcpy/write_ack
void byte_queue_write(ByteQueue *queue, void *ptr, uint32_t len);
// Write the result of the format into the queue
void byte_queue_write_fmt(ByteQueue *queue, const char *fmt, ...);
// Write the result of the format into the queue
void byte_queue_write_fmt2(ByteQueue *queue, const char *fmt,
va_list args);
// Returns the current offset inside the queue
ByteQueueOffset byte_queue_offset(ByteQueue *queue);
@@ -724,6 +743,7 @@ typedef struct {
HTTP_ClientConnState state;
ByteQueue input;
ByteQueue output;
HTTP_Response response;
} HTTP_ClientConn;
// Fields of this struct are private
@@ -781,31 +801,32 @@ int http_client_get_builder(HTTP_Client *client,
// Set the URL of the current request. This is the first
// function of the request builder that the user must call.
void http_request_builder_url(HTTP_RequestBuilder builder, String url);
void http_request_builder_url(HTTP_RequestBuilder builder, HTTP_String url);
// After the URL, the user may set zero or more headers.
void http_request_builder_header(HTTP_RequestBuilder builder, String str);
void http_request_builder_header(HTTP_RequestBuilder builder, HTTP_String str);
// Append bytes to the request's body. You can call this
// any amount of times, as long as it's after having set
// the URL.
void http_request_builder_body(HTTP_RequestBuilder builder, String str);
void http_request_builder_body(HTTP_RequestBuilder builder, HTTP_String str);
// Mark this request as complete. This invalidates the
// builder.
void http_request_builder_send(HTTP_RequestBuilder builder);
// Returns 0 on success, -1 on error.
int http_request_builder_send(HTTP_RequestBuilder builder);
// List all low-level socket events the client is
// waiting for such that the caller can call poll()
// with it.
// Resets the event register with the list of descriptors
// the client wants monitored. Returns 0 on success, -1 if
// the event register's capacity isn't large enough.
int http_client_register_events(HTTP_Client *client,
struct pollfd *polled, int max_polled);
EventRegister *reg);
// The caller has waited for poll() to return and some
// I/O events to be triggered, so now the HTTP client
// can continue its buffering and flushing operations.
int http_client_process_events(HTTP_Client *client,
struct pollfd *polled, int num_polled);
EventRegister *reg);
// After some I/O events were processes, some responses
// may be availabe. This function returns one of the
@@ -875,6 +896,17 @@ typedef struct {
// Data being sent to the client
ByteQueue output;
// Generation counter. This is used to invalidate
// response builders that refer to this connection.
uint16_t gen;
// This is set during the WAIT_XXX states or
// the FLUSHING state. When the connection
// completes flushing and no more bytes are
// in the output buffer, it frees the connection
// instead of turning it back to BUFFERING.
bool closing;
// When the state is WAIT_STATUS, WAIT_HEADER,
// or WAIT_BODY, this contains the parsed version
// of the buffered request.
@@ -890,6 +922,19 @@ typedef struct {
// scratch.
ByteQueueOffset response_offset;
// When the first byte of the response content is
// written, before it are prepended special headers,
// including Content-Length and Connection. This
// offset points to the first byte that comes after
// the string "Content-Length: ".
ByteQueueOffset content_length_value_offset;
// Similarly to the previous field, this one points
// to the first byte of the body. This allows calculating
// the length of the response content byte subtracting
// it from the offset reached when the response is marked
// as done.
ByteQueueOffset content_length_offset;
} HTTP_ServerConn;
typedef struct {
@@ -944,7 +989,7 @@ void http_server_set_output_limit(HTTP_Server *server, uint32_t limit);
// Enable listening for plain HTTP requests at the
// specified interface.
int http_server_listen_tcp(HTTP_Server *server,
String addr, Port port);
HTTP_String addr, Port port);
// Enable listening for HTTPS requests at the specified
// interfact, using the specified certificate and key
@@ -962,17 +1007,17 @@ int http_server_add_certificate(HTTP_Server *server,
// other threads can call this function to wake it up.
int http_server_wakeup(HTTP_Server *server);
// List all low-level socket events the server is
// waiting for such that the caller can call poll()
// with it.
// Resets the event register with the list of descriptors
// the server wants monitored. Returns 0 on success, -1 if
// the event register's capacity isn't large enough.
int http_server_register_events(HTTP_Server *server,
struct pollfd *polled, int max_polled);
EventRegister *reg);
// The caller has waited for poll() to return and some
// I/O events to be triggered, so now the HTTP server
// can continue its buffering and flushing operations.
int http_server_process_events(HTTP_Server *server,
struct pollfd *polled, int num_polled);
EventRegister *reg);
typedef struct {
HTTP_Server *server;
@@ -1000,7 +1045,7 @@ void http_response_builder_status(HTTP_ResponseBuilder builder, int status);
// Append a header to the response. This can only be
// used after having set the status and before appending
// to the body.
void http_response_builder_header(HTTP_ResponseBuilder builder, String str);
void http_response_builder_header(HTTP_ResponseBuilder builder, HTTP_String str);
// Append some bytes to the response's body
void http_response_builder_body(HTTP_ResponseBuilder builder, String str);
src/byte_queue.c
+40
View File
@@ -217,6 +217,46 @@ void byte_queue_write(ByteQueue *queue, void *ptr, uint32_t len)
}
}
void byte_queue_write_fmt2(ByteQueue *queue,
const char *fmt, va_list args)
{
if (queue->flags & BYTE_QUEUE_ERROR)
return;
va_list args2;
va_copy(args2, args);
byte_queue_write_setmincap(queue, 128);
ByteView dst = byte_queue_write_buf(queue);
int len = vsnprintf(dst.ptr, dst.len, fmt, args);
if (len < 0) {
queue->flags |= BYTE_QUEUE_ERROR;
va_end(args2);
return;
}
if (len > dst.len) {
byte_queue_write_ack(queue, 0);
byte_queue_write_setmincap(queue, len+1);
dst = byte_queue_write_buf(queue);
vsnprintf(dst.ptr, dst.len, fmt, args2);
}
byte_queue_write_ack(queue, len);
va_end(args2);
}
void byte_queue_write_fmt(ByteQueue *queue,
const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
byte_queue_write_fmt2(queue, fmt, args);
va_end(args);
}
ByteQueueOffset byte_queue_offset(ByteQueue *queue)
{
if (queue->flags & BYTE_QUEUE_ERROR)
src/byte_queue.h
+7
View File
@@ -117,6 +117,13 @@ int byte_queue_write_setmincap(ByteQueue *queue, uint32_t mincap);
// short hand for write_buf/memcpy/write_ack
void byte_queue_write(ByteQueue *queue, void *ptr, uint32_t len);
// Write the result of the format into the queue
void byte_queue_write_fmt(ByteQueue *queue, const char *fmt, ...);
// Write the result of the format into the queue
void byte_queue_write_fmt2(ByteQueue *queue, const char *fmt,
va_list args);
// Returns the current offset inside the queue
ByteQueueOffset byte_queue_offset(ByteQueue *queue);
src/client.c
+26 -11
View File
@@ -1,4 +1,14 @@
void http_client_conn_init(HTTP_ClientConn *conn)
{
// TODO
}
void http_client_conn_free(HTTP_ClientConn *conn)
{
// TODO
}
int http_client_init(HTTP_Client *client)
{
client->num_conns = 0;
@@ -35,22 +45,26 @@ int http_client_wakeup(HTTP_Client *client)
return 0;
}
int http_client_get_builder(HTTP_Client *client, HTTP_RequestBuilder *builder)
int http_client_get_builder(HTTP_Client *client,
HTTP_Response *response, HTTP_RequestBuilder *builder)
{
// TODO
}
void http_request_builder_line(HTTP_RequestBuilder builder, xxxx)
void http_request_builder_url(HTTP_RequestBuilder builder,
HTTP_String url)
{
// TODO
}
void http_request_builder_header(HTTP_RequestBuilder builder, String str)
void http_request_builder_header(HTTP_RequestBuilder builder,
HTTP_String str)
{
// TODO
}
void http_request_builder_body(HTTP_RequestBuilder builder, String str)
void http_request_builder_body(HTTP_RequestBuilder builder,
HTTP_String str)
{
// TODO
}
@@ -61,18 +75,19 @@ int http_request_builder_send(HTTP_RequestBuilder builder)
}
int http_client_register_events(HTTP_Client *client,
struct pollfd *polled, int max_polled)
EventRegister *reg)
{
return socket_manager_register_events(
&client->sockets, polled, max_polled);
if (socket_manager_register_events(&client->sockets, reg) < 0)
return -1;
return 0;
}
int http_client_process_events(HTTP_Client *client,
struct pollfd *polled, int num_polled)
EventRegister *reg)
{
SocketEvent events[HTTP_CLIENT_CAPACITY];
int num_events = socket_manager_translate_events(
&client->sockets, polled, num_polled);
&client->sockets, events, reg);
for (int i = 0; i < num_events; i++) {
@@ -92,9 +107,9 @@ int http_client_process_events(HTTP_Client *client,
}
bool http_client_next_response(HTTP_Client *client,
HTTP_Response **response);
HTTP_Response **response)
{
if (server->num_ready == 0)
if (client->num_ready == 0)
return false;
HTTP_ClientConn *conn = &client->conns[client->ready_head];
src/client.h
+11 -9
View File
@@ -20,6 +20,7 @@ typedef struct {
HTTP_ClientConnState state;
ByteQueue input;
ByteQueue output;
HTTP_Response response;
} HTTP_ClientConn;
// Fields of this struct are private
@@ -77,31 +78,32 @@ int http_client_get_builder(HTTP_Client *client,
// Set the URL of the current request. This is the first
// function of the request builder that the user must call.
void http_request_builder_url(HTTP_RequestBuilder builder, String url);
void http_request_builder_url(HTTP_RequestBuilder builder, HTTP_String url);
// After the URL, the user may set zero or more headers.
void http_request_builder_header(HTTP_RequestBuilder builder, String str);
void http_request_builder_header(HTTP_RequestBuilder builder, HTTP_String str);
// Append bytes to the request's body. You can call this
// any amount of times, as long as it's after having set
// the URL.
void http_request_builder_body(HTTP_RequestBuilder builder, String str);
void http_request_builder_body(HTTP_RequestBuilder builder, HTTP_String str);
// Mark this request as complete. This invalidates the
// builder.
void http_request_builder_send(HTTP_RequestBuilder builder);
// Returns 0 on success, -1 on error.
int http_request_builder_send(HTTP_RequestBuilder builder);
// List all low-level socket events the client is
// waiting for such that the caller can call poll()
// with it.
// Resets the event register with the list of descriptors
// the client wants monitored. Returns 0 on success, -1 if
// the event register's capacity isn't large enough.
int http_client_register_events(HTTP_Client *client,
struct pollfd *polled, int max_polled);
EventRegister *reg);
// The caller has waited for poll() to return and some
// I/O events to be triggered, so now the HTTP client
// can continue its buffering and flushing operations.
int http_client_process_events(HTTP_Client *client,
struct pollfd *polled, int num_polled);
EventRegister *reg);
// After some I/O events were processes, some responses
// may be availabe. This function returns one of the
src/includes.h
+2
View File
@@ -11,6 +11,8 @@
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#include <limits.h>
#include <stdarg.h>
#include <unistd.h>
#include <pthread.h>
#include <poll.h>
src/server.c
+135 -30
View File
@@ -5,6 +5,7 @@ static void http_server_conn_init(HTTP_ServerConn *conn,
{
conn->state = HTTP_SERVER_CONN_BUFFERING;
conn->handle = handle;
conn->closing = false;
byte_queue_init(&conn->input, input_buffer_limit);
byte_queue_init(&conn->output, output_buffer_limit);
}
@@ -21,8 +22,10 @@ int http_server_init(HTTP_Server *server)
server->output_buffer_limit = 1<<20;
server->num_conns = 0;
for (int i = 0; i < HTTP_SERVER_CAPACITY; i++)
for (int i = 0; i < HTTP_SERVER_CAPACITY; i++) {
server->conns[i].state = HTTP_SERVER_CONN_FREE;
server->conns[i].gen = 0;
}
server->num_ready = 0;
server->ready_head = 0;
@@ -58,7 +61,7 @@ void http_server_set_output_limit(HTTP_Server *server, uint32_t limit)
}
int http_server_listen_tcp(HTTP_Server *server,
String addr, Port port)
HTTP_String addr, Port port)
{
if (socket_manager_listen_tcp(&server->sockets, addr, port) < 0)
return -1;
@@ -66,8 +69,8 @@ int http_server_listen_tcp(HTTP_Server *server,
}
int http_server_listen_tls(HTTP_Server *server,
String addr, Port port, String cert_file_name,
String key_file_name)
HTTP_String addr, Port port, HTTP_String cert_file_name,
HTTP_String key_file_name)
{
if (socket_manager_listen_tls(&server->sockets, addr,
port, cert_file_name, key_file_name) < 0)
@@ -92,9 +95,11 @@ int http_server_wakeup(HTTP_Server *server)
}
int http_server_register_events(HTTP_Server *server,
struct pollfd *polled, int max_polled)
EventRegister *reg)
{
return socket_manager_register_events(&server->sockets, polled, max_polled);
if (socket_manager_register_events(&server->sockets, reg) < 0)
return -1;
return 0;
}
// Look at the head of the input buffer to see if
@@ -142,27 +147,11 @@ check_request_buffer(HTTP_Server *server, HTTP_ServerConn *conn)
}
}
bool http_server_next_request(HTTP_Server *server,
HTTP_Request **request, HTTP_ResponseBuilder *builder)
{
if (server->num_ready == 0)
return false;
HTTP_ServerConn *conn = &server->conns[server->ready_head];
server->ready_head = (server->ready_head + 1) % HTTP_SERVER_CAPACITY;
server->num_ready--;
assert(conn->state == HTTP_SERVER_CONN_WAIT_STATUS);
*request = &conn->request;
*builder = (HTTP_ResponseBuilder) { server, conn - server->conns, conn->gen };
return true;
}
int http_server_process_events(HTTP_Server *server,
struct pollfd *polled, int num_polled)
EventRegister *reg)
{
SocketEvent events[HTTP_SERVER_CAPACITY];
int num_events = socket_manager_translate_events(&server->sockets, polled, num_polled);
int num_events = socket_manager_translate_events(&server->sockets, events, reg);
if (num_events < 0)
return -1;
@@ -245,6 +234,22 @@ int http_server_process_events(HTTP_Server *server,
return 0;
}
bool http_server_next_request(HTTP_Server *server,
HTTP_Request **request, HTTP_ResponseBuilder *builder)
{
if (server->num_ready == 0)
return false;
HTTP_ServerConn *conn = &server->conns[server->ready_head];
server->ready_head = (server->ready_head + 1) % HTTP_SERVER_CAPACITY;
server->num_ready--;
assert(conn->state == HTTP_SERVER_CONN_WAIT_STATUS);
*request = &conn->request;
*builder = (HTTP_ResponseBuilder) { server, conn - server->conns, conn->gen };
return true;
}
// Get a connection pointer from a response builder.
// If the builder is invalid, returns NULL.
// Note that only connections in the responding states
@@ -261,17 +266,86 @@ builder_to_conn(HTTP_ResponseBuilder builder)
if (builder.index > HTTP_SERVER_CAPACITY)
return NULL;
HTTP_ServerConn *conn = server->conns[builder.index];
HTTP_ServerConn *conn = &server->conns[builder.index];
if (builder.gen != conn->gen)
return NULL;
return conn;
}
static const char*
get_status_text(int code)
{
switch(code) {
case 100: return "Continue";
case 101: return "Switching Protocols";
case 102: return "Processing";
case 200: return "OK";
case 201: return "Created";
case 202: return "Accepted";
case 203: return "Non-Authoritative Information";
case 204: return "No Content";
case 205: return "Reset Content";
case 206: return "Partial Content";
case 207: return "Multi-Status";
case 208: return "Already Reported";
case 300: return "Multiple Choices";
case 301: return "Moved Permanently";
case 302: return "Found";
case 303: return "See Other";
case 304: return "Not Modified";
case 305: return "Use Proxy";
case 306: return "Switch Proxy";
case 307: return "Temporary Redirect";
case 308: return "Permanent Redirect";
case 400: return "Bad Request";
case 401: return "Unauthorized";
case 402: return "Payment Required";
case 403: return "Forbidden";
case 404: return "Not Found";
case 405: return "Method Not Allowed";
case 406: return "Not Acceptable";
case 407: return "Proxy Authentication Required";
case 408: return "Request Timeout";
case 409: return "Conflict";
case 410: return "Gone";
case 411: return "Length Required";
case 412: return "Precondition Failed";
case 413: return "Request Entity Too Large";
case 414: return "Request-URI Too Long";
case 415: return "Unsupported Media Type";
case 416: return "Requested Range Not Satisfiable";
case 417: return "Expectation Failed";
case 418: return "I'm a teapot";
case 420: return "Enhance your calm";
case 422: return "Unprocessable Entity";
case 426: return "Upgrade Required";
case 429: return "Too many requests";
case 431: return "Request Header Fields Too Large";
case 449: return "Retry With";
case 451: return "Unavailable For Legal Reasons";
case 500: return "Internal Server Error";
case 501: return "Not Implemented";
case 502: return "Bad Gateway";
case 503: return "Service Unavailable";
case 504: return "Gateway Timeout";
case 505: return "HTTP Version Not Supported";
case 509: return "Bandwidth Limit Exceeded";
}
return "???";
}
static void
write_status(HTTP_ServerConn *conn, int status)
{
byte_queue_write(&conn->output, xxx);
byte_queue_write_fmt(&conn->output,
"HTTP/1.1 %d %s\r\n",
status, get_status_text(status));
}
void http_response_builder_status(HTTP_ResponseBuilder builder, int status)
@@ -291,7 +365,7 @@ void http_response_builder_status(HTTP_ResponseBuilder builder, int status)
conn->state = HTTP_SERVER_CONN_WAIT_HEADER;
}
void http_response_builder_header(HTTP_ResponseBuilder builder, String str)
void http_response_builder_header(HTTP_ResponseBuilder builder, HTTP_String str)
{
HTTP_ServerConn *conn = builder_to_conn(builder);
if (conn == NULL)
@@ -300,17 +374,48 @@ void http_response_builder_header(HTTP_ResponseBuilder builder, String str)
if (conn->state != HTTP_SERVER_CONN_WAIT_HEADER)
return;
byte_queue_write(&conn->output, xxx);
// TODO: Check that the header is valid
byte_queue_write(&conn->output, str.ptr, str.len);
byte_queue_write(&conn->output, "\r\n", 2);
}
static void append_special_headers(HTTP_ServerConn *conn)
{
// TODO
HTTP_String s;
if (conn->closing) {
s = HTTP_STR("Connection: Close");
byte_queue_write(&conn->output, s.ptr, s.len);
} else {
s = HTTP_STR("Connection: Keep-Alive");
byte_queue_write(&conn->output, s.ptr, s.len);
}
s = HTTP_STR("Content-Length: ");
byte_queue_write(&conn->output, s.ptr, s.len);
conn->content_length_value_offset = byte_queue_offset(&conn->output);
#define TEN_SPACES " "
_Static_assert(sizeof(TEN_SPACES) == 10+1);
s = HTTP_STR(TEN_SPACES "\r\n");
byte_queue_write(&conn->output, s.ptr, s.len);
byte_queue_write(&conn->output, "\r\n", 2);
conn->content_length_offset = byte_queue_offset(&conn->output);
}
static void patch_special_headers(HTTP_ServerConn *conn)
{
// TODO
int content_length = byte_queue_size_from_offset(&conn->output, conn->content_length_offset);
char tmp[11];
int len = snprintf(tmp, sizeof(tmp), "%d", content_length);
assert(len > 0 && len < 11);
byte_queue_patch(&conn->output, conn->content_length_value_offset, tmp, len);
}
void http_response_builder_body(HTTP_ResponseBuilder builder, String str)
src/server.h
+31 -7
View File
@@ -49,6 +49,17 @@ typedef struct {
// Data being sent to the client
ByteQueue output;
// Generation counter. This is used to invalidate
// response builders that refer to this connection.
uint16_t gen;
// This is set during the WAIT_XXX states or
// the FLUSHING state. When the connection
// completes flushing and no more bytes are
// in the output buffer, it frees the connection
// instead of turning it back to BUFFERING.
bool closing;
// When the state is WAIT_STATUS, WAIT_HEADER,
// or WAIT_BODY, this contains the parsed version
// of the buffered request.
@@ -64,6 +75,19 @@ typedef struct {
// scratch.
ByteQueueOffset response_offset;
// When the first byte of the response content is
// written, before it are prepended special headers,
// including Content-Length and Connection. This
// offset points to the first byte that comes after
// the string "Content-Length: ".
ByteQueueOffset content_length_value_offset;
// Similarly to the previous field, this one points
// to the first byte of the body. This allows calculating
// the length of the response content byte subtracting
// it from the offset reached when the response is marked
// as done.
ByteQueueOffset content_length_offset;
} HTTP_ServerConn;
typedef struct {
@@ -118,7 +142,7 @@ void http_server_set_output_limit(HTTP_Server *server, uint32_t limit);
// Enable listening for plain HTTP requests at the
// specified interface.
int http_server_listen_tcp(HTTP_Server *server,
String addr, Port port);
HTTP_String addr, Port port);
// Enable listening for HTTPS requests at the specified
// interfact, using the specified certificate and key
@@ -136,17 +160,17 @@ int http_server_add_certificate(HTTP_Server *server,
// other threads can call this function to wake it up.
int http_server_wakeup(HTTP_Server *server);
// List all low-level socket events the server is
// waiting for such that the caller can call poll()
// with it.
// Resets the event register with the list of descriptors
// the server wants monitored. Returns 0 on success, -1 if
// the event register's capacity isn't large enough.
int http_server_register_events(HTTP_Server *server,
struct pollfd *polled, int max_polled);
EventRegister *reg);
// The caller has waited for poll() to return and some
// I/O events to be triggered, so now the HTTP server
// can continue its buffering and flushing operations.
int http_server_process_events(HTTP_Server *server,
struct pollfd *polled, int num_polled);
EventRegister *reg);
typedef struct {
HTTP_Server *server;
@@ -174,7 +198,7 @@ void http_response_builder_status(HTTP_ResponseBuilder builder, int status);
// Append a header to the response. This can only be
// used after having set the status and before appending
// to the body.
void http_response_builder_header(HTTP_ResponseBuilder builder, String str);
void http_response_builder_header(HTTP_ResponseBuilder builder, HTTP_String str);
// Append some bytes to the response's body
void http_response_builder_body(HTTP_ResponseBuilder builder, String str);
src/socket.c
+96 -63
View File
@@ -68,7 +68,7 @@ static int set_socket_blocking(NATIVE_SOCKET sock, bool value)
return 0;
}
static NATIVE_SOCKET create_listen_socket(String addr,
static NATIVE_SOCKET create_listen_socket(HTTP_String addr,
Port port, bool reuse_addr, int backlog)
{
NATIVE_SOCKET sock = socket(AF_INET, SOCK_STREAM, 0);
@@ -169,7 +169,7 @@ void socket_manager_free(SocketManager *sm)
}
int socket_manager_listen_tcp(SocketManager *sm,
String addr, Port port)
HTTP_String addr, Port port)
{
if (sm->plain_sock != NATIVE_SOCKET_INVALID)
return -1;
@@ -184,8 +184,8 @@ int socket_manager_listen_tcp(SocketManager *sm,
}
int socket_manager_listen_tls(SocketManager *sm,
String addr, Port port, String cert_file_name,
String key_file_name)
HTTP_String addr, Port port, HTTP_String cert_file_name,
HTTP_String key_file_name)
{
if (sm->secure_sock != NATIVE_SOCKET_INVALID)
return -1;
@@ -452,38 +452,41 @@ int socket_manager_wakeup(SocketManager *sm)
}
static int socket_manager_register_events_nolock(
SocketManager *sm, struct pollfd *polled, int max_polled)
SocketManager *sm, EventRegister *reg)
{
// The poll array must be able to hold descriptors
// for a socket manager at full capacity. Note that
// other than having a number of connection sockets,
// the manager also needs 2 for the listeners and
// one for the wakeup self-pipe.
if (max_polled < sm->max_used+3)
if (reg->max_polled < sm->max_used+3)
return -1;
int num_polled = 0;
reg->num_polled = 0;
polled[num_polled].fd = sm->wait_sock;
polled[num_polled].events = 0;
polled[num_polled].revents = 0;
num_polled++;
reg->polled[reg->num_polled].fd = sm->wait_sock;
reg->polled[reg->num_polled].events = POLLIN;
reg->polled[reg->num_polled].revents = 0;
reg->ptrs[reg->num_polled] = NULL;
reg->num_polled++;
// If the manager isn't at full capacity, monitor
// the listener sockets for incoming connections.
if (sm->num_used < sm->max_used) {
if (sm->plain_sock != NATIVE_SOCKET_INVALID) {
polled[num_polled].fd = sm->plain_sock;
polled[num_polled].events = POLLIN;
polled[num_polled].revents = 0;
num_polled++;
reg->polled[reg->num_polled].fd = sm->plain_sock;
reg->polled[reg->num_polled].events = POLLIN;
reg->polled[reg->num_polled].revents = 0;
reg->ptrs[reg->num_polled] = NULL;
reg->num_polled++;
}
if (sm->secure_sock != NATIVE_SOCKET_INVALID) {
polled[num_polled].fd = sm->secure_sock;
polled[num_polled].events = POLLIN;
polled[num_polled].revents = 0;
num_polled++;
reg->polled[reg->num_polled].fd = sm->secure_sock;
reg->polled[reg->num_polled].events = POLLIN;
reg->polled[reg->num_polled].revents = 0;
reg->ptrs[reg->num_polled] = NULL;
reg->num_polled++;
}
}
@@ -498,28 +501,25 @@ static int socket_manager_register_events_nolock(
continue;
j++;
if (s->state == SOCKET_STATE_DIED || s->state == SOCKET_STATE_ESTABLISHED_READY)
return 0;
if (s->events) {
polled[num_polled].fd = s->sock;
polled[num_polled].events = s->events;
polled[num_polled].revents = 0;
num_polled++;
reg->polled[reg->num_polled].fd = s->sock;
reg->polled[reg->num_polled].events = s->events;
reg->polled[reg->num_polled].revents = 0;
reg->ptrs[reg->num_polled] = s;
reg->num_polled++;
}
}
return num_polled;
return 0;
}
int socket_manager_register_events(SocketManager *sm,
struct pollfd *polled, int max_polled)
EventRegister *reg)
{
if (mutex_lock(&sm->mutex) < 0)
return -1;
int ret = socket_manager_register_events_nolock(
sm, polled, max_polled);
int ret = socket_manager_register_events_nolock(sm, reg);
if (mutex_unlock(&sm->mutex) < 0)
return -1;
@@ -538,14 +538,14 @@ static Socket *handle_to_socket(SocketManager *sm, SocketHandle handle)
}
static int socket_manager_translate_events_nolock(
SocketManager *sm, SocketEvent *events, int max_events,
struct pollfd *polled, int num_polled)
SocketManager *sm, SocketEvent *events,
EventRegister *reg)
{
int num_events = 0;
for (int i = 0; i < num_polled; i++) {
for (int i = 0; i < reg->num_polled; i++) {
if (polled[i].fd == sm->plain_sock ||
polled[i].fd == sm->secure_sock) {
if (reg->polled[i].fd == sm->plain_sock ||
reg->polled[i].fd == sm->secure_sock) {
// We only listen for input events from the listener
// if the socket pool isn't fool. This ensures that
@@ -561,7 +561,7 @@ static int socket_manager_translate_events_nolock(
// Determine whether the event came from
// the encrypted listener or not.
bool secure = (polled[i].fd == sm->secure_sock);
bool secure = (reg->polled[i].fd == sm->secure_sock);
Socket *s = sm->sockets;
while (s->state != SOCKET_STATE_FREE) {
@@ -569,7 +569,7 @@ static int socket_manager_translate_events_nolock(
assert(s - sm->sockets < + sm->max_used);
}
NATIVE_SOCKET sock = accept(polled[i].fd, NULL, NULL);
NATIVE_SOCKET sock = accept(reg->polled[i].fd, NULL, NULL);
if (sock == NATIVE_SOCKET_INVALID)
continue;
@@ -592,12 +592,14 @@ static int socket_manager_translate_events_nolock(
sm->num_used++;
} else if (polled[i].fd == sm->wait_sock) {
} else if (reg->polled[i].fd == sm->wait_sock) {
// TODO: consume
} else {
if (polled[i].revents)
Socket *s = reg->ptrs[i];
if (reg->polled[i].revents)
socket_update(s);
}
}
@@ -608,14 +610,11 @@ static int socket_manager_translate_events_nolock(
continue;
j++;
if (num_events == max_events)
break;
if (s->state == SOCKET_DIED) {
if (s->state == SOCKET_STATE_DIED) {
events[num_events++] = (SocketEvent) {
SOCKET_EVENT_DISCONNECT,
SOCKET_HANDE_INVALID,
SOCKET_HANDLE_INVALID,
s->user
};
@@ -628,7 +627,7 @@ static int socket_manager_translate_events_nolock(
if (s->num_addr > 1)
free(s->addrs);
}
s->num_used--;
sm->num_used--;
} else if (s->state == SOCKET_STATE_ESTABLISHED_READY) {
events[num_events++] = (SocketEvent) {
@@ -643,18 +642,16 @@ static int socket_manager_translate_events_nolock(
}
int socket_manager_translate_events(SocketManager *sm,
SocketEvent *events, int max_events, struct pollfd *polled,
int num_polled)
SocketEvent *events, EventRegister *reg)
{
if (mutex_lock(&sm->mutex) < 0)
return -1;
socket_manager_translate_events_nolock(
sm, events, max_events, polled, num_polled);
int ret = socket_manager_translate_events_nolock(sm, events, reg);
if (mutex_unlock(&sm->mutex) < 0)
return -1;
return 0;
return ret;
}
static int resolve_connect_targets(ConnectTarget *targets,
@@ -666,7 +663,7 @@ static int resolve_connect_targets(ConnectTarget *targets,
case CONNECT_TARGET_NAME:
{
char portstr[16];
int len = snprintf(portstr, sizeof(portstr), "%u", port);
int len = snprintf(portstr, sizeof(portstr), "%u", targets[i].port);
if (len < 0 || len >= (int) sizeof(portstr))
return -1;
@@ -674,8 +671,14 @@ static int resolve_connect_targets(ConnectTarget *targets,
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
char hostname[1<<9]; // TODO: Is this a good length?
if (targets[i].name.len >= (int) sizeof(hostname))
return -1;
memcpy(hostname, targets[i].name.ptr, targets[i].name.len);
hostname[targets[i].name.len] = '\0';
struct addrinfo *res = NULL;
int ret = getaddrinfo(pending_connect->hostname, portstr, &hints, &res);
int ret = getaddrinfo(hostname, portstr, &hints, &res);
if (ret != 0)
return -1;
@@ -692,7 +695,7 @@ static int resolve_connect_targets(ConnectTarget *targets,
IPv6 ipv6 = *(IPv6*) &((struct sockaddr_in6*)rp->ai_addr)->sin6_addr;
if (num_resolved < max_resolved) {
resolved[num_resolved].is_ipv4 = false;
resolved[num_resolved].ipv4 = ipv6;
resolved[num_resolved].ipv6 = ipv6;
resolved[num_resolved].port = targets[i].port;
num_resolved++;
}
@@ -723,6 +726,8 @@ static int resolve_connect_targets(ConnectTarget *targets,
return num_resolved;
}
#define MAX_CONNECT_TARGETS 16
int socket_connect(SocketManager *sm, int num_targets,
ConnectTarget *targets, bool secure, void *user)
{
@@ -759,10 +764,29 @@ int socket_connect(SocketManager *sm, int num_targets,
s->state = SOCKET_STATE_PENDING;
s->sock = NATIVE_SOCKET_INVALID;
s->user = user;
s->num_used++;
sm->num_used++;
return 0;
}
static bool would_block(void)
{
#ifdef _WIN32
int err = WSAGetLastError();
return err == WSAEWOULDBLOCK;
#else
return errno == EAGAIN || errno == EWOULDBLOCK;
#endif
}
static bool interrupted(void)
{
#ifdef _WIN32
return false;
#else
return errno == EINTR;
#endif
}
static int socket_recv_nolock(SocketManager *sm, SocketHandle handle,
char *dst, int max)
{
@@ -840,14 +864,14 @@ static int socket_send_nolock(SocketManager *sm, SocketHandle handle,
return 0;
}
if (!socket_secure(s)) {
if (!is_secure(s)) {
int ret = send(s->sock, src, len, 0);
if (ret < 0) {
if (would_block()) {
s->state = SOCKET_STATE_ESTABLISHED_WAIT;
s->events = POLLOUT;
} else if (!interrupted()) {
s->state = SOCKET_DIED;
s->state = SOCKET_STATE_DIED;
s->events = 0;
}
ret = 0;
@@ -888,19 +912,25 @@ int socket_send(SocketManager *sm, SocketHandle handle,
return ret;
}
void socket_close(SocketManager *sm, SocketHandle handle)
int socket_close(SocketManager *sm, SocketHandle handle)
{
if (mutex_lock(&sm->mutex) < 0)
return -1;
// TODO: maybe we don't want to always set to SHUTDOWN. What if the socket is DIED for instance?
s->state = SOCKET_STATE_SHUTDOWN;
s->events = 0;
socket_update(s);
int ret;
Socket *s = handle_to_socket(sm, handle);
if (s == NULL)
ret = -1;
else {
// TODO: maybe we don't want to always set to SHUTDOWN. What if the socket is DIED for instance?
s->state = SOCKET_STATE_SHUTDOWN;
s->events = 0;
socket_update(s);
}
if (mutex_unlock(&sm->mutex) < 0)
return -1;
return 0;
return ret;
}
int socket_is_secure(SocketManager *sm, SocketHandle handle)
@@ -926,11 +956,14 @@ int socket_set_user(SocketManager *sm, SocketHandle handle, void *user)
if (mutex_lock(&sm->mutex) < 0)
return -1;
int ret;
Socket *s = handle_to_socket(sm, handle);
if (s == NULL)
ret = -1;
else
else {
s->user = user;
ret = 0;
}
if (mutex_unlock(&sm->mutex) < 0)
return -1;
src/socket.h
+23 -13
View File
@@ -221,7 +221,7 @@ void socket_manager_free(SocketManager *sm);
// can only be used once per manager.
// Returns 0 on success, -1 on error.
int socket_manager_listen_tcp(SocketManager *sm,
String addr, Port port);
HTTP_String addr, Port port);
// Same as the previous function, but incoming
// connections will be interpreted as TLS. You
@@ -231,8 +231,8 @@ int socket_manager_listen_tcp(SocketManager *sm,
// and secure connections.
// Returns 0 on success, -1 on error.
int socket_manager_listen_tls(SocketManager *sm,
String addr, Port port, String cert_file_name,
String key_file_name);
HTTP_String addr, Port port, HTTP_String cert_file_name,
HTTP_String key_file_name);
// If the socket manager was configures to accept
// TLS connections, this adds additional certificates
@@ -249,22 +249,32 @@ int socket_manager_add_certificate(SocketManager *sm,
// Returns 0 on success, -1 on error.
int socket_manager_wakeup(SocketManager *sm);
// Writes to the polled array the list of sockets
// that the socket manager is monitoring and which
// events associated to that socket.
// Returns the number of items written to the polled
// array.
typedef struct {
void **ptrs;
struct pollfd *polled;
int num_polled;
int max_polled;
} EventRegister;
// Resets the event register with the list of descriptors
// the socket manager wants monitored. Returns 0 on
// success, -1 if the event register's capacity isn't
// large enough.
int socket_manager_register_events(SocketManager *sm,
struct pollfd *polled, int max_polled);
EventRegister *reg);
// After poll() is called on the previously registered
// pollfd array and the revents fields are set, this
// function processes those events to produce higher-level
// socket events. Returns the number of socket events
// written to the output array, or -1 on error.
//
// The maximum number of events this will write
// to the events array is equal to the numero of
// socket structs provided to the socket manager
// via the init function.
int socket_manager_translate_events(SocketManager *sm,
SocketEvent *events, int max_events, struct pollfd *polled,
int num_polled);
SocketEvent *events, EventRegister *reg);
typedef enum {
CONNECT_TARGET_NAME,
@@ -295,7 +305,7 @@ int socket_recv(SocketManager *sm, SocketHandle handle,
int socket_send(SocketManager *sm, SocketHandle handle,
char *src, int len);
void socket_close(SocketManager *sm, SocketHandle handle);
int socket_close(SocketManager *sm, SocketHandle handle);
// Returns -1 on error, 0 if the socket was accepted
// from the plaintext listener, or 1 if it was accepted
@@ -303,4 +313,4 @@ void socket_close(SocketManager *sm, SocketHandle handle);
int socket_is_secure(SocketManager *sm, SocketHandle handle);
// Set the user pointer of a socket
void socket_set_user(SocketManager *sm, SocketHandle handle, void *user);
int socket_set_user(SocketManager *sm, SocketHandle handle, void *user);