nci-create-assignment-group.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
  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 *weight_arg = 0;
  40         double weight_d = 0;
  41         char *weight = 0;
  42         char *drop_lowest_arg = 0;
  43         long long drop_lowest_ll = 0;
  44         char *drop_lowest = 0;
  45         char *drop_highest_arg = 0;
  46         long long drop_highest_ll = 0;
  47         char *drop_highest = 0;
  48         size_t len = 0;
  49         char *built_uri = 0;
  50         struct curl_httppost *post = 0;
  51         char *new_id = 0;
  52         int opt = 0;
  53
  54         setlocale(LC_ALL, "");
  55
  56         while ((opt = getopt(argc, argv, "c:n:w:d:D:")) != -1) {
  57                 switch (opt) {
  58                 case 'c':
  59                         course_id = optarg;
  60                         break;
  61                 case 'n':
  62                         name = optarg;
  63                         break;
  64                 case 'w':
  65                         weight_arg = optarg;
  66                         break;
  67                 case 'd':
  68                         drop_lowest_arg = optarg;
  69                         break;
  70                 case 'D':
  71                         drop_highest_arg = optarg;
  72                         break;
  73                 default:
  74                         break;
  75                 }
  76         }
  77
  78         if (!course_id) {
  79                 ret = EINVAL;
  80                 fprintf(stderr, "course-id is mandatory\n");
  81                 goto cleanup;
  82         }
  83
  84         if (!name) {
  85                 ret = EINVAL;
  86                 fprintf(stderr, "name is mandatory\n");
  87                 goto cleanup;
  88         }
  89
  90         if (weight_arg) {
  91                 weight_d = strtod(weight_arg, 0);
  92                 len = snprintf(0, 0, "%lf", weight_d);
  93
  94                 if (len + 1 < len) {
  95                         ret = errno = EOVERFLOW;
  96                         perror(L(""));
  97                         goto cleanup;
  98                 }
  99
 100                 if (!(weight = malloc(len + 1))) {
 101                         ret = errno;
 102                         perror(L("malloc"));
 103                         goto cleanup;
 104                 }
 105
 106                 sprintf(weight, "%lf", weight_d);
 107         }
 108
 109         if (drop_lowest_arg) {
 110                 drop_lowest_ll = strtoll(drop_lowest_arg, 0, 0);
 111                 len = snprintf(0, 0, "%lld", drop_lowest_ll);
 112
 113                 if (len + 1 < len) {
 114                         ret = errno = EOVERFLOW;
 115                         perror(L(""));
 116                         goto cleanup;
 117                 }
 118
 119                 if (!(drop_lowest = malloc(len + 1))) {
 120                         ret = errno;
 121                         perror(L("malloc"));
 122                         goto cleanup;
 123                 }
 124
 125                 sprintf(drop_lowest, "%lld", drop_lowest_ll);
 126         }
 127
 128         if (drop_highest_arg) {
 129                 drop_highest_ll = strtoll(drop_highest_arg, 0, 0);
 130                 len = snprintf(0, 0, "%lld", drop_highest_ll);
 131
 132                 if (len + 1 < len) {
 133                         ret = errno = EOVERFLOW;
 134                         perror(L(""));
 135                         goto cleanup;
 136                 }
 137
 138                 if (!(drop_highest = malloc(len + 1))) {
 139                         ret = errno;
 140                         perror(L("malloc"));
 141                         goto cleanup;
 142                 }
 143
 144                 sprintf(drop_highest, "%lld", drop_highest_ll);
 145         }
 146
 147         curl_global_init(CURL_GLOBAL_DEFAULT);
 148
 149         if (!(url_base = get_url_base())) {
 150                 ret = ENOENT;
 151
 152                 /* Error should have already been printed */
 153                 goto cleanup;
 154         }
 155
 156         if (!(auth_token = get_auth_token())) {
 157                 ret = ENOENT;
 158
 159                 /* Error should have already been printed */
 160                 goto cleanup;
 161         }
 162
 163         len = snprintf(0, 0, "%s/api/v1/courses/%s/assignment_groups", url_base,
 164                        course_id);
 165
 166         if (len + 1 < len) {
 167                 ret = errno = EOVERFLOW;
 168                 perror(L(""));
 169                 goto cleanup;
 170         }
 171
 172         if (!(built_uri = malloc(len + 1))) {
 173                 ret = errno;
 174                 perror(L("malloc"));
 175                 goto cleanup;
 176         }
 177
 178         sprintf(built_uri, "%s/api/v1/courses/%s/assignment_groups", url_base,
 179                 course_id);
 180
 181         if (!(post = make_agroup_post(name, weight, drop_lowest,
 182                                       drop_highest))) {
 183                 /* XXX: pass back proper error code from make_agroup_post() */
 184                 goto cleanup;
 185         }
 186
 187         if ((ret = send_and_id_scan(built_uri, auth_token, post, "POST",
 188                                     &new_id))) {
 189                 goto cleanup;
 190         }
 191
 192         if (new_id) {
 193                 printf("%s\n", new_id);
 194         }
 195
 196         ret = 0;
 197 cleanup:
 198         curl_formfree(post);
 199         free(new_id);
 200         free(built_uri);
 201         free(drop_highest);
 202         free(drop_lowest);
 203         free(weight);
 204         free(url_base);
 205         free(auth_token);
 206         curl_global_cleanup();
 207
 208         return ret;
 209 }