void *handle_connection(void *arg) {
st_netfd_t client_nfd = (st_netfd_t)arg;
struct http_stream *s = http_stream_create(HTTP_SERVER, SEC2USEC(10));
char buf[4*1024];
for (;;) {
if (http_stream_request_read(s, client_nfd) < 0) break;
http_request_debug_print(s->req, stderr);
size_t total = 0;
for (;;) {
ssize_t nr = sizeof(buf);
int status = http_stream_read(s, buf, &nr);
fprintf(stderr, "http_stream_read nr: %zd\n", nr);
if (nr < 0 || status != HTTP_STREAM_OK) { goto done; }
if (nr == 0) break;
/*fwrite(buf, sizeof(char), nr, stdout);*/
total += nr;
}
fprintf(stderr, "http_stream_read total: %zu\n", total);
http_response_clear(s->resp);
s->resp->http_version = "HTTP/1.1";
s->resp->status_code = 200;
s->resp->reason = "OK";
http_response_header_append(s->resp, "Content-type", "text/html");
/*http_response_header_append(s->resp, "Connection", "close");*/
http_response_set_body(s->resp, "<H2>It worked!</H2>");
ssize_t nw = http_stream_response_send(s, 1);
fprintf(stderr, "http_stream_response_send: %zd\n", nw);
/* TODO: break loop if HTTP/1.0 and not keep-alive */
}
done:
fprintf(stderr, "exiting handle_connection\n");
http_stream_close(s);
return NULL;
}
/* Simple error response */
void
http_send_error(struct http_client *c, short code, const char *msg) {
struct http_response resp;
http_response_init(&resp, code, msg);
resp.http_version = c->http_version;
http_response_set_connection_header(c, &resp);
http_response_set_body(&resp, NULL, 0);
http_response_write(&resp, c->fd);
http_client_reset(c);
}
/* Adobe flash cross-domain request */
void
http_crossdomain(struct http_client *c) {
struct http_response resp;
char out[] = "<?xml version=\"1.0\"?>\n"
"<!DOCTYPE cross-domain-policy SYSTEM \"http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd\">\n"
"<cross-domain-policy>\n"
"<allow-access-from domain=\"*\" />\n"
"</cross-domain-policy>\n";
http_response_init(&resp, 200, "OK");
resp.http_version = c->http_version;
http_response_set_connection_header(c, &resp);
http_response_set_header(&resp, "Content-Type", "application/xml");
http_response_set_body(&resp, out, sizeof(out)-1);
http_response_write(&resp, c->fd);
http_client_reset(c);
}
void webserver_send_response(ClientSocket* client,
enum EHttpStatus status,
const char* body,
const char* content_type)
{
// Build the Content-Length string
char content_length[20] = {0};
snprintf(content_length, 20, "%zu", (body ? strlen(body) : 0));
if (!content_type) { content_type = "text/plain"; }
// Build the response object
HttpResponse* res = http_response_new();
http_response_set_status(res, HTTP_VERSION_1_0, status);
http_response_add_header(res, "Server", "webserver");
http_response_add_header(res, "Content-Length", content_length);
if (body) { http_response_add_header(res, "Content-Type", content_type); }
if (body) { http_response_set_body(res, body); }
// Send the response and clean up
client_socket_send(client, http_response_string(res), http_response_length(res));
http_response_free(res);
}
void
format_send_reply(struct cmd *cmd, const char *p, size_t sz, const char *content_type) {
int free_cmd = 1;
const char *ct = cmd->mime?cmd->mime:content_type;
struct http_response *resp;
if(cmd->is_websocket) {
ws_reply(cmd, p, sz);
/* If it's a subscribe command, there'll be more responses */
if(!cmd_is_subscribe(cmd))
cmd_free(cmd);
return;
}
if(cmd_is_subscribe(cmd)) {
free_cmd = 0;
/* start streaming */
if(cmd->started_responding == 0) {
cmd->started_responding = 1;
resp = http_response_init(cmd->w, 200, "OK");
resp->http_version = cmd->http_version;
if(cmd->filename) {
http_response_set_header(resp, "Content-Disposition", cmd->filename);
}
http_response_set_header(resp, "Content-Type", ct);
http_response_set_keep_alive(resp, 1);
http_response_set_header(resp, "Transfer-Encoding", "chunked");
http_response_set_body(resp, p, sz);
http_response_write(resp, cmd->fd);
} else {
/* Asynchronous chunk write. */
http_response_write_chunk(cmd->fd, cmd->w, p, sz);
}
} else {
/* compute ETag */
char *etag = etag_new(p, sz);
if(etag) {
/* check If-None-Match */
if(cmd->if_none_match && strcmp(cmd->if_none_match, etag) == 0) {
/* SAME! send 304. */
resp = http_response_init(cmd->w, 304, "Not Modified");
} else {
resp = http_response_init(cmd->w, 200, "OK");
if(cmd->filename) {
http_response_set_header(resp, "Content-Disposition", cmd->filename);
}
http_response_set_header(resp, "Content-Type", ct);
http_response_set_header(resp, "ETag", etag);
http_response_set_body(resp, p, sz);
}
resp->http_version = cmd->http_version;
http_response_set_keep_alive(resp, cmd->keep_alive);
http_response_write(resp, cmd->fd);
free(etag);
} else {
format_send_error(cmd, 503, "Service Unavailable");
}
}
/* cleanup */
if(free_cmd) {
cmd_free(cmd);
}
}
