nci-create-assignment-group.c

   1 /*
   2  * Copyright (c) 2016, 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 *name = 0;
  38         char *weight_arg = 0;
  39         double weight_d = 0;
  40         char *weight = 0;
  41         char *drop_lowest_arg = 0;
  42         long long drop_lowest_ll = 0;
  43         char *drop_lowest = 0;
  44         char *drop_highest_arg = 0;
  45         long long drop_highest_ll = 0;
  46         char *drop_highest = 0;
  47         size_t len = 0;
  48         char *built_uri = 0;
  49         struct curl_httppost *post = 0;
  50         char *new_id = 0;
  51         int opt = 0;
  52
  53         setlocale(LC_ALL, "");
  54
  55         while ((opt = getopt(argc, argv, "c:n:w:d:D:")) != -1) {
  56                 switch (opt) {
  57                 case 'c':
  58                         course_id = optarg;
  59                         break;
  60                 case 'n':
  61                         name = optarg;
  62                         break;
  63                 case 'w':
  64                         weight_arg = optarg;
  65                         break;
  66                 case 'd':
  67                         drop_lowest_arg = optarg;
  68                         break;
  69                 case 'D':
  70                         drop_highest_arg = optarg;
  71                         break;
  72                 default:
  73                         break;
  74                 }
  75         }
  76
  77         if (!course_id) {
  78                 ret = EINVAL;
  79                 fprintf(stderr, "course-id is mandatory\n");
  80                 goto cleanup;
  81         }
  82
  83         if (!name) {
  84                 ret = EINVAL;
  85                 fprintf(stderr, "name is mandatory\n");
  86                 goto cleanup;
  87         }
  88
  89         if (weight_arg) {
  90                 weight_d = strtod(weight_arg, 0);
  91                 len = snprintf(0, 0, "%lf", weight_d);
  92
  93                 if (len + 1 < len) {
  94                         ret = errno = EOVERFLOW;
  95                         perror(L(""));
  96                         goto cleanup;
  97                 }
  98
  99                 if (!(weight = malloc(len + 1))) {
 100                         ret = errno;
 101                         perror(L("malloc"));
 102                         goto cleanup;
 103                 }
 104
 105                 sprintf(weight, "%lf", weight_d);
 106         }
 107
 108         if (drop_lowest_arg) {
 109                 drop_lowest_ll = strtoll(drop_lowest_arg, 0, 0);
 110                 len = snprintf(0, 0, "%lld", drop_lowest_ll);
 111
 112                 if (len + 1 < len) {
 113                         ret = errno = EOVERFLOW;
 114                         perror(L(""));
 115                         goto cleanup;
 116                 }
 117
 118                 if (!(drop_lowest = malloc(len + 1))) {
 119                         ret = errno;
 120                         perror(L("malloc"));
 121                         goto cleanup;
 122                 }
 123
 124                 sprintf(drop_lowest, "%lld", drop_lowest_ll);
 125         }
 126
 127         if (drop_highest_arg) {
 128                 drop_highest_ll = strtoll(drop_highest_arg, 0, 0);
 129                 len = snprintf(0, 0, "%lld", drop_highest_ll);
 130
 131                 if (len + 1 < len) {
 132                         ret = errno = EOVERFLOW;
 133                         perror(L(""));
 134                         goto cleanup;
 135                 }
 136
 137                 if (!(drop_highest = malloc(len + 1))) {
 138                         ret = errno;
 139                         perror(L("malloc"));
 140                         goto cleanup;
 141                 }
 142
 143                 sprintf(drop_highest, "%lld", drop_highest_ll);
 144         }
 145
 146         curl_global_init(CURL_GLOBAL_DEFAULT);
 147
 148         if (!(url_base = get_url_base())) {
 149                 ret = ENOENT;
 150
 151                 /* Error should have already been printed */
 152                 goto cleanup;
 153         }
 154
 155         if (!(auth_token = get_auth_token())) {
 156                 ret = ENOENT;
 157
 158                 /* Error should have already been printed */
 159                 goto cleanup;
 160         }
 161
 162         len = snprintf(0, 0, "%s/api/v1/courses/%s/assignment_groups", url_base,
 163                        course_id);
 164
 165         if (len + 1 < len) {
 166                 ret = errno = EOVERFLOW;
 167                 perror(L(""));
 168                 goto cleanup;
 169         }
 170
 171         if (!(built_uri = malloc(len + 1))) {
 172                 ret = errno;
 173                 perror(L("malloc"));
 174                 goto cleanup;
 175         }
 176
 177         sprintf(built_uri, "%s/api/v1/courses/%s/assignment_groups", url_base,
 178                 course_id);
 179
 180         if (!(post = make_agroup_post(name, weight, drop_lowest,
 181                                       drop_highest))) {
 182                 /* XXX: pass back proper error code from make_agroup_post() */
 183                 goto cleanup;
 184         }
 185
 186         if ((ret = send_and_id_scan(built_uri, auth_token, post, "POST",
 187                                     &new_id))) {
 188                 goto cleanup;
 189         }
 190
 191         if (new_id) {
 192                 printf("%s\n", new_id);
 193         }
 194
 195         ret = 0;
 196 cleanup:
 197         curl_formfree(post);
 198         free(new_id);
 199         free(built_uri);
 200         free(drop_highest);
 201         free(drop_lowest);
 202         free(weight);
 203         free(url_base);
 204         free(auth_token);
 205         curl_global_cleanup();
 206
 207         return ret;
 208 }