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