src/lp_json.c

   1 /*
   2  * Copyright (C) 2011-2014 jeanfi@gmail.com
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301 USA
  18  */
  19 #define _XOPEN_SOURCE_EXTENDED
  20 #define _XOPEN_SOURCE
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <time.h>
  25
  26 #include <lp_json.h>
  27 #include <lp_ws.h>
  28 #include <ptime.h>
  29
  30 static time_t json_to_time(json_object *json)
  31 {
  32         const char *str;
  33         struct tm tm;
  34         char *ret;
  35
  36         str = json_object_get_string(json);
  37         if (!str)
  38                 return -1;
  39
  40         memset(&tm, 0, sizeof(struct tm));
  41         tm.tm_isdst = -1;
  42         ret = strptime(str, "%FT%T", &tm);
  43
  44         if (ret)
  45                 return mktime(&tm);
  46         else
  47                 return -1;
  48 }
  49
  50 json_object *time_to_json(time_t t)
  51 {
  52         char *str;
  53         json_object *j;
  54
  55         str = time_to_ISO8601_time(&t);
  56
  57         if (str) {
  58                 j = json_object_new_string(str);
  59                 free(str);
  60                 return j;
  61         } else {
  62                 return NULL;
  63         }
  64 }
  65
  66 static struct bpph *json_to_bpph(json_object *o)
  67 {
  68         const char *binary_package_name;
  69         const char *binary_package_version;
  70         const char *distro_arch_series_link;
  71         const char *self_link;
  72         int arch_specific;
  73         struct bpph *bpph;
  74         const char *status;
  75         time_t date_created;
  76
  77         binary_package_name = json_object_get_string
  78                 (json_object_object_get(o, "binary_package_name"));
  79
  80         binary_package_version = json_object_get_string
  81                 (json_object_object_get(o, "binary_package_version"));
  82
  83         distro_arch_series_link = json_object_get_string
  84                 (json_object_object_get(o, "distro_arch_series_link"));
  85
  86         self_link = json_object_get_string
  87                 (json_object_object_get(o, "self_link"));
  88
  89         arch_specific = json_object_get_boolean
  90                 (json_object_object_get(o, "architecture_specific"));
  91
  92         date_created = json_to_time(json_object_object_get(o, "date_created"));
  93
  94         status = json_object_get_string(json_object_object_get(o, "status"));
  95
  96         bpph =  bpph_new(binary_package_name,
  97                          binary_package_version,
  98                          distro_arch_series_link,
  99                          self_link,
 100                          status,
 101                          arch_specific,
 102                          date_created);
 103
 104         return bpph;
 105 }
 106
 107 static json_object *bpph_to_json(struct bpph *bpph)
 108 {
 109         json_object *json, *time;
 110
 111         json = json_object_new_object();
 112
 113         json_object_object_add
 114                 (json,
 115                  "binary_package_name",
 116                  json_object_new_string(bpph->binary_package_name));
 117
 118         json_object_object_add
 119                 (json,
 120                  "binary_package_version",
 121                  json_object_new_string(bpph->binary_package_version));
 122
 123         json_object_object_add
 124                 (json,
 125                  "distro_arch_series_link",
 126                  json_object_new_string(bpph->distro_arch_series_link));
 127
 128         json_object_object_add
 129                 (json, "self_link", json_object_new_string(bpph->self_link));
 130
 131         json_object_object_add
 132                 (json,
 133                  "architecture_specific",
 134                  json_object_new_boolean(bpph->architecture_specific));
 135
 136         json_object_object_add
 137                 (json, "status", json_object_new_string(bpph->status));
 138
 139         time = time_to_json(bpph->date_created);
 140         json_object_object_add
 141                 (json, "date_created", time);
 142
 143         return json;
 144 }
 145
 146 struct distro_arch_series *json_object_to_distro_arch_series(json_object *o)
 147 {
 148         const char *display_name;
 149         const char *title;
 150         const char *architecture_tag;
 151         json_bool is_nominated_arch_indep;
 152         const char *distroseries_link;
 153
 154         display_name = json_object_get_string
 155                 (json_object_object_get(o, "display_name"));
 156
 157         title = json_object_get_string
 158                 (json_object_object_get(o, "title"));
 159
 160         architecture_tag = json_object_get_string
 161                 (json_object_object_get(o, "architecture_tag"));
 162
 163         distroseries_link = json_object_get_string
 164                 (json_object_object_get(o, "distroseries_link"));
 165
 166         is_nominated_arch_indep = json_object_get_boolean
 167                 (json_object_object_get(o, "is_nominated_arch_indep"));
 168
 169         return distro_arch_series_new(display_name,
 170                                       title,
 171                                       architecture_tag,
 172                                       is_nominated_arch_indep,
 173                                       distroseries_link);
 174 }
 175
 176 struct distro_series *json_object_to_distro_series(json_object *o)
 177 {
 178         const char *displayname;
 179         const char *title;
 180         const char *name;
 181         const char *version;
 182
 183         displayname = json_object_get_string
 184                 (json_object_object_get(o, "displayname"));
 185
 186         title = json_object_get_string(json_object_object_get(o, "title"));
 187
 188         version = json_object_get_string(json_object_object_get(o, "version"));
 189
 190         name = json_object_get_string(json_object_object_get(o, "name"));
 191
 192         return distro_series_new(name,
 193                                  version,
 194                                  title,
 195                                  displayname);
 196 }
 197
 198 struct bpph **json_object_to_bpph_list(json_object *o)
 199 {
 200         json_object *o_entries;
 201         int i, n, i2;
 202         struct bpph **entries, *h;
 203         const struct distro_arch_series *distro;
 204
 205         o_entries = json_object_object_get(o, "entries");
 206
 207         if (!o_entries)
 208                 return NULL;
 209
 210         n = json_object_array_length(o_entries);
 211
 212         entries = malloc
 213                 (sizeof(struct bpph *)*(n+1));
 214
 215         for (i = 0, i2 = 0; i < n; i++) {
 216                 h = json_to_bpph(json_object_array_get_idx(o_entries,
 217                                                            i));
 218
 219                 if (!h->architecture_specific) {
 220                         distro = get_distro_arch_series
 221                                 (h->distro_arch_series_link);
 222
 223                         if (!distro || !distro->is_nominated_arch_indep) {
 224                                 bpph_free(h);
 225                                 continue ;
 226                         }
 227                 }
 228
 229                 entries[i2] = h;
 230                 i2++;
 231         }
 232         entries[i2] = NULL;
 233
 234         return entries;
 235 }
 236
 237 json_object *bpph_list_to_json(struct bpph **list)
 238 {
 239         json_object *result, *entries;
 240         struct bpph **cur;
 241
 242         result = json_object_new_object();
 243
 244         entries = json_object_new_array();
 245         json_object_object_add(result, "entries", entries);
 246
 247         if (list)
 248                 for (cur = list; *cur; cur++)
 249                         json_object_array_add(entries, bpph_to_json(*cur));
 250
 251         return result;
 252 }
 253
 254 struct daily_download_total *
 255 json_object_to_daily_download_total(const char *d, json_object *o_c)
 256 {
 257         struct daily_download_total *result;
 258
 259         result = malloc(sizeof(struct daily_download_total));
 260         result->count = json_object_get_int(o_c);
 261
 262         memset(&result->date, 0, sizeof(struct tm));
 263         strptime(d, "%FT%T%z", &result->date);
 264
 265         return result;
 266 }
 267
 268 static int json_object_get_fields_count(json_object *o)
 269 {
 270         int n = 0;
 271         struct lh_entry *entry;
 272
 273         entry = json_object_get_object(o)->head;
 274         while (entry) {
 275                 entry = entry->next;
 276                 n++;
 277         }
 278
 279         return n;
 280 }
 281
 282 struct daily_download_total * *
 283 json_object_to_daily_download_totals(json_object *o)
 284 {
 285         int n, i;
 286         struct daily_download_total **result;
 287
 288         n = json_object_get_fields_count(o);
 289
 290         result = malloc
 291                 (sizeof(struct daily_download_total *)*(n+1));
 292
 293         i = 0;
 294         json_object_object_foreach(o, key, val) {
 295                 result[i] = json_object_to_daily_download_total(key, val);
 296                 i++;
 297         }
 298
 299         result[n] = NULL;
 300
 301         return result;
 302 }
 303
 304 struct json_object *date_to_json(struct tm *tm)
 305 {
 306         json_object *json;
 307
 308         json = json_object_new_array();
 309         json_object_array_add(json, json_object_new_int(tm->tm_year+1900));
 310         json_object_array_add(json, json_object_new_int(tm->tm_mon+1));
 311         json_object_array_add(json, json_object_new_int(tm->tm_mday));
 312
 313         return json;
 314 }
 315
 316 json_object *ddts_to_json(struct daily_download_total **ddts)
 317 {
 318         json_object *json_ddt, *json_ddts;
 319         struct daily_download_total *ddt;
 320
 321         json_ddts = json_object_new_array();
 322
 323         while (ddts && *ddts) {
 324                 ddt = *ddts;
 325
 326                 json_ddt = json_object_new_object();
 327                 json_object_object_add(json_ddt,
 328                                        "value",
 329                                        json_object_new_int(ddt->count));
 330                 json_object_object_add(json_ddt,
 331                                        "time",
 332                                        date_to_json(&ddt->date));
 333
 334                 json_object_array_add(json_ddts, json_ddt);
 335
 336                 ddts++;
 337         }
 338
 339         return json_ddts;
 340 }