nci-edit-assignment.c

   1 /*
   2  * Copyright (c) 2016-2018 S. Gilles <sgilles@math.umd.edu>
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software
   5  * for any purpose with or without fee is hereby granted, provided
   6  * that the above copyright notice and this permission notice appear
   7  * in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
  10  * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
  11  * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
  12  * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
  13  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
  14  * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
  15  * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  16  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18 #include <errno.h>
  19 #include <locale.h>
  20 #include <stdint.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24
  25 #include <curl/curl.h>
  26 #include <yajl_parse.h>
  27
  28 #include "macros.h"
  29 #include "util.h"
  30
  31 int main(int argc, char **argv)
  32 {
  33         int ret = EINVAL;
  34         char *url_base = 0;
  35         char *auth_token = 0;
  36         char *course_id = 0;
  37         char *assignment_id = 0;
  38         char *name = 0;
  39         char *max_points_arg = 0;
  40         double max_points_d = 0;
  41         char *max_points = 0;
  42         char *due_date = 0;
  43         char *group_id = 0;
  44         size_t len = 0;
  45         char *built_uri = 0;
  46         struct curl_httppost *post = 0;
  47         int opt = 0;
  48
  49         setlocale(LC_ALL, "");
  50
  51         while ((opt = getopt(argc, argv, "a:c:n:m:d:g:")) != -1) {
  52                 switch (opt) {
  53                 case 'c':
  54                         course_id = optarg;
  55                         break;
  56                 case 'a':
  57                         assignment_id = optarg;
  58                         break;
  59                 case 'n':
  60                         name = optarg;
  61                         break;
  62                 case 'm':
  63                         max_points_arg = optarg;
  64                         break;
  65                 case 'd':
  66                         due_date = optarg;
  67                         break;
  68                 case 'g':
  69                         group_id = optarg;
  70                         break;
  71                 default:
  72                         break;
  73                 }
  74         }
  75
  76         if (!course_id) {
  77                 ret = EINVAL;
  78                 fprintf(stderr, "course-id is mandatory\n");
  79                 goto cleanup;
  80         }
  81
  82         if (!assignment_id) {
  83                 ret = EINVAL;
  84                 fprintf(stderr, "assignment-id is mandatory\n");
  85                 goto cleanup;
  86         }
  87
  88         if (max_points_arg) {
  89                 max_points_d = strtod(max_points_arg, 0);
  90                 len = snprintf(0, 0, "%lf", max_points_d);
  91
  92                 if (len + 1 < len) {
  93                         ret = errno = EOVERFLOW;
  94                         perror(L(""));
  95                         goto cleanup;
  96                 }
  97
  98                 if (!(max_points = malloc(len + 1))) {
  99                         ret = errno;
 100                         perror(L("malloc"));
 101                         goto cleanup;
 102                 }
 103
 104                 sprintf(max_points, "%lf", max_points_d);
 105         }
 106
 107         curl_global_init(CURL_GLOBAL_DEFAULT);
 108
 109         if (!(url_base = get_url_base())) {
 110                 ret = ENOENT;
 111
 112                 /* Error should have already been printed */
 113                 goto cleanup;
 114         }
 115
 116         if (!(auth_token = get_auth_token())) {
 117                 ret = ENOENT;
 118
 119                 /* Error should have already been printed */
 120                 goto cleanup;
 121         }
 122
 123         len = snprintf(0, 0, "%s/api/v1/courses/%s/assignments/%s", url_base,
 124                        course_id, assignment_id);
 125
 126         if (len + 1 < len) {
 127                 ret = errno = EOVERFLOW;
 128                 perror(L(""));
 129                 goto cleanup;
 130         }
 131
 132         if (!(built_uri = malloc(len + 1))) {
 133                 ret = errno;
 134                 perror(L("malloc"));
 135                 goto cleanup;
 136         }
 137
 138         sprintf(built_uri, "%s/api/v1/courses/%s/assignments/%s", url_base,
 139                 course_id, assignment_id);
 140
 141         if (!(post = make_assignment_post(name, max_points, due_date,
 142                                           group_id))) {
 143                 /* XXX: pass back proper error code from make_assignment_post() */
 144                 goto cleanup;
 145         }
 146
 147         if ((ret = send_and_id_scan(built_uri, auth_token, post, "PUT", 0))) {
 148                 goto cleanup;
 149         }
 150
 151         ret = 0;
 152 cleanup:
 153         curl_formfree(post);
 154         free(built_uri);
 155         free(max_points);
 156         free(url_base);
 157         free(auth_token);
 158         curl_global_cleanup();
 159
 160         return ret;
 161 }