core-legacy/handlers/connection.c
2020-06-01 00:45:08 +02:00

85 lines
3 KiB
C

#include <string.h>
#include <macros.h>
#include <constants.h>
#include <mongoose.h>
#include <logger.h>
#include <router.h>
#include <handlers.h>
#define STD_HEADERS "Access-Control-Allow-Origin: *\r\nAccess-Control-Allow-Headers: *\r\nAccess-Control-Allow-Methods: *\r\n"
#define HEADERS_FMT STD_HEADERS "Content-Type: %s"
// -2 for "%s" -1 for \0
#define HEADERS_FMT_LEN (sizeof(HEADERS_FMT) - 3)
void
handler_connection(struct mg_connection *nc, int ev, void *p)
{
if (ev == MG_EV_HTTP_REQUEST)
{
struct http_message *hm = (struct http_message *) p;
LOG_TRACE("new http %.*s request for %.*s\n", hm->method.len, hm->method.p, hm->uri.len, hm->uri.p);
endpoint_t *endpoint = router_find_endpoint(hm->uri.p, hm->uri.len, &hm->method);
if(endpoint)
{
if(endpoint->func)
{
endpoint_response_t response;
static const char content[] = "the server did not create a response";
endpoint_response_text(&response, 500, content, STRLEN(content));
endpoint->func(nc, hm, endpoint->args, &response);
char *response_headers = malloc(sizeof(char) * (HEADERS_FMT_LEN + strlen(response.content_type) + 1));
sprintf(response_headers, HEADERS_FMT, response.content_type);
mg_send_head(nc, response.status_code, response.content_length, response_headers);
mg_printf(nc, "%s", response.content);
free(response_headers);
if(response.alloced_content)
{
free((char*)response.content);
}
for(int i = 0; i < endpoint->args_count; ++i)
{
if(endpoint->args[i].type == ENDPOINT_ARG_TYPE_STR)
{
free((char*)endpoint->args[i].value.v_str);
}
}
}
else
{
if(endpoint->method == HTTP_METHOD_OPTIONS)
{
char options_header[256]; // TODO make more generic
sprintf(options_header, STD_HEADERS "Allow: OPTIONS%s%s%s%s",
endpoint->options & HTTP_METHOD_GET ? ", GET" : "",
endpoint->options & HTTP_METHOD_POST ? ", POST" : "",
endpoint->options & HTTP_METHOD_PUT ? ", PUT" : "",
endpoint->options & HTTP_METHOD_DELETE ? ", DELETE" : ""
);
mg_send_head(nc, 204, 0, options_header);
}
else
{
mg_send_head(nc, 501, 0, "Content-Type: text/plain");
}
}
}
else
{
mg_send_head(nc, 500, 0, "Content-Type: text/plain");
}
//mg_printf(c, "%.*s", (int)hm->message.len, hm->message.p);
//mg_printf(c, "%.*s", (int)hm->body.len, hm->body.p);
}
}