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add: endpoint responses

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This commit is contained in:
Tobias Reisinger 2020-05-21 01:33:18 +02:00
parent 5a19e99627
commit 5e64f5963c
18 changed files with 587 additions and 235 deletions
handlers
connection.c

39
handlers/connection.c
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@ -1,9 +1,20 @@
#include <string.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)
#define STD_RESPONSE_CONTENT "the server did not create a response"
#define STD_RESPONSE_CONTENT_LEN (sizeof(STD_RESPONSE_CONTENT) - 1)
void
handler_connection(struct mg_connection *c, int ev, void *p)
{
@ -18,7 +29,27 @@ handler_connection(struct mg_connection *c, int ev, void *p)
{
if(endpoint->func)
{
endpoint->func(c, endpoint->args, p);
endpoint_response_t response;
response.status_code = 500;
response.content_type = "text/plain";
response.content_length = STD_RESPONSE_CONTENT_LEN;
response.content = STD_RESPONSE_CONTENT;
response.alloced_content = false;
endpoint->func(p, 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(c, response.status_code, response.content_length, response_headers);
mg_printf(c, "%s", response.content);
free(response_headers);
if(response.alloced_content)
{
free((char*)response.content);
}
for(int i = 0; i < endpoint->args_count; ++i)
{
@ -33,11 +64,7 @@ handler_connection(struct mg_connection *c, int ev, void *p)
if(endpoint->method == HTTP_METHOD_OPTIONS)
{
char options_header[256]; // TODO make more generic
sprintf(options_header, "Allow: OPTIONS%s%s%s%s\r\nAccess-Control-Allow-Methods: OPTIONS%s%s%s%s\r\n" STANDARD_HEADERS,
endpoint->options & HTTP_METHOD_GET ? ", GET" : "",
endpoint->options & HTTP_METHOD_POST ? ", POST" : "",
endpoint->options & HTTP_METHOD_PUT ? ", PUT" : "",
endpoint->options & HTTP_METHOD_DELETE ? ", DELETE" : "",
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" : "",