nci-create-assignment.c

   1 /*
   2  * Copyright (c) 2016-2019 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
  32 main(int argc, char **argv)
  33 {
  34         int ret = EINVAL;
  35         char *url_base = 0;
  36         char *auth_token = 0;
  37         char *course_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         char *new_id = 0;
  48         int opt = 0;
  49
  50         setlocale(LC_ALL, "");
  51
  52         while ((opt = getopt(argc, argv, "c:n:m:d:g:")) != -1) {
  53                 switch (opt) {
  54                 case 'c':
  55                         course_id = optarg;
  56                         break;
  57                 case 'n':
  58                         name = optarg;
  59                         break;
  60                 case 'm':
  61                         max_points_arg = optarg;
  62                         break;
  63                 case 'd':
  64                         due_date = optarg;
  65                         break;
  66                 case 'g':
  67                         group_id = optarg;
  68                         break;
  69                 default:
  70                         break;
  71                 }
  72         }
  73
  74         if (!course_id) {
  75                 ret = EINVAL;
  76                 fprintf(stderr, "course-id is mandatory\n");
  77                 goto cleanup;
  78         }
  79
  80         if (!name) {
  81                 ret = EINVAL;
  82                 fprintf(stderr, "name is mandatory\n");
  83                 goto cleanup;
  84         }
  85
  86         if (!max_points_arg) {
  87                 ret = EINVAL;
  88                 fprintf(stderr, "max-points is mandatory\n");
  89                 goto cleanup;
  90         } else {
  91                 max_points_d = strtod(max_points_arg, 0);
  92                 len = snprintf(0, 0, "%lf", max_points_d);
  93
  94                 if (len + 1 < len) {
  95                         ret = errno = EOVERFLOW;
  96                         perror(L(""));
  97                         goto cleanup;
  98                 }
  99
 100                 if (!(max_points = malloc(len + 1))) {
 101                         ret = errno;
 102                         perror(L("malloc"));
 103                         goto cleanup;
 104                 }
 105
 106                 sprintf(max_points, "%lf", max_points_d);
 107         }
 108
 109         curl_global_init(CURL_GLOBAL_DEFAULT);
 110
 111         if (!(url_base = get_url_base())) {
 112                 ret = ENOENT;
 113
 114                 /* Error should have already been printed */
 115                 goto cleanup;
 116         }
 117
 118         if (!(auth_token = get_auth_token())) {
 119                 ret = ENOENT;
 120
 121                 /* Error should have already been printed */
 122                 goto cleanup;
 123         }
 124
 125         len = snprintf(0, 0, "%s/api/v1/courses/%s/assignments", url_base,
 126                        course_id);
 127
 128         if (len + 1 < len) {
 129                 ret = errno = EOVERFLOW;
 130                 perror(L(""));
 131                 goto cleanup;
 132         }
 133
 134         if (!(built_uri = malloc(len + 1))) {
 135                 ret = errno;
 136                 perror(L("malloc"));
 137                 goto cleanup;
 138         }
 139
 140         sprintf(built_uri, "%s/api/v1/courses/%s/assignments", url_base,
 141                 course_id);
 142
 143         if (!(post = make_assignment_post(name, max_points, due_date,
 144                                           group_id))) {
 145                 /* XXX: pass back proper error code from make_assignment_post */
 146                 goto cleanup;
 147         }
 148
 149         if ((ret = send_and_id_scan(built_uri, auth_token, post, "POST",
 150                                     &new_id))) {
 151                 goto cleanup;
 152         }
 153
 154         if (new_id) {
 155                 printf("%s\n", new_id);
 156         }
 157
 158         ret = 0;
 159 cleanup:
 160         curl_formfree(post);
 161         free(new_id);
 162         free(built_uri);
 163         free(max_points);
 164         free(url_base);
 165         free(auth_token);
 166         curl_global_cleanup();
 167
 168         return ret;
 169 }