math/src/server/auth/permission.c

84 lines
1.8 KiB
C

#include "server/auth.h"
#include "server/response.h"
#include "server/util.h"
#include "db/auth.h"
#include "jwt/jwt.h"
#include <civetweb.h>
#include <cjson/cJSON.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
typedef struct
{
char* user_id;
} permission_form_t;
static void permission_form_dtor(permission_form_t* form)
{
if (form->user_id) free(form->user_id);
}
static int field_found(const char* key, const char* filename, char* path, size_t pathlen, void* user_data)
{
return MG_FORM_FIELD_HANDLE_GET;
}
static int field_get(const char* key, const char* value, size_t valuelen, void* user_data)
{
permission_form_t* form = (permission_form_t*)user_data;
if (strcmp(key, "user_id") == 0) {
form->user_id = kqm_strndup(value, valuelen);
return MG_FORM_FIELD_HANDLE_ABORT;
}
return MG_FORM_FIELD_HANDLE_GET;
}
int user_permission_handler(mg_connection* conn, void* cbdata)
{
const mg_request_info* post_body = mg_get_request_info(conn);
if (post_body == NULL) {
res_null_req(conn);
return 1;
}
if (strcmp(post_body->request_method, "POST")) {
res_must_post(conn);
return 1;
}
permission_form_t form = {NULL};
mg_form_data_handler permission_callback = {
.field_found = field_found,
.field_get = field_get,
.field_store = NULL,
.user_data = &form,
};
mg_handle_form_request(conn, &permission_callback);
if (!form.user_id) {
res_need_user_id(conn);
permission_form_dtor(&form);
return 1;
}
int perm;
int flag = get_user_permission(form.user_id, &perm);
if (!flag) {
res_check_permission_fail(conn);
} else {
res_permission(conn, perm);
}
permission_form_dtor(&form);
return 1;
}