src/lp_ws.c

   1 /*
   2  * Copyright (C) 2011-2012 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
  20 #include <libintl.h>
  21 #define _(String) gettext(String)
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include <json/json.h>
  28
  29 #include "cache.h"
  30 #include "fcache.h"
  31 #include "http.h"
  32 #include "list.h"
  33 #include "log.h"
  34 #include "lp_ws.h"
  35 #include "lp_json.h"
  36 #include "ppastats.h"
  37
  38 static const char *
  39 QUERY_GET_PUBLISHED_BINARIES = "?ws.op=getPublishedBinaries&ws.size=150";
  40 static const char *QUERY_GET_DOWNLOAD_COUNT = "?ws.op=getDownloadCount";
  41 static const char *
  42 QUERY_GET_DAILY_DOWNLOAD_TOTALS = "?ws.op=getDailyDownloadTotals";
  43
  44 static json_object *get_json_object(const char *url)
  45 {
  46         json_object *obj = NULL;
  47         char *body;
  48
  49         body = get_url_content(url, 0);
  50
  51         if (body) {
  52                 obj = json_tokener_parse(body);
  53
  54                 free(body);
  55
  56                 return obj;
  57         }
  58
  59         return NULL;
  60 }
  61
  62 static char *get_bpph_list_cache_key(const char *archive_url)
  63 {
  64         char *key;
  65
  66         key = malloc(strlen(archive_url + 7) + strlen("/bpph") + 1);
  67         sprintf(key, "%s/bpph", archive_url + 7);
  68
  69         return key;
  70 }
  71
  72 static struct bpph **get_bpph_list_from_cache(const char *key)
  73 {
  74         char *content;
  75         struct bpph **list;
  76         json_object *json;
  77
  78         content = fcache_get(key);
  79         if (!content)
  80                 return NULL;
  81
  82         json = json_tokener_parse(content);
  83         if (!json)
  84                 return NULL;
  85
  86         list = json_object_to_bpph_list(json);
  87
  88         json_object_put(json);
  89         free(content);
  90
  91         return list;
  92 }
  93
  94 static char *get_last_creation_date(struct bpph **list)
  95 {
  96         time_t last, t;
  97         struct bpph **cur;
  98
  99         last = 0;
 100
 101         if (list)
 102                 for (cur = list; *cur; cur++) {
 103                         t = (*cur)->date_created;
 104                         if (t > last)
 105                                 last = t;
 106                 }
 107
 108         if (last)
 109                 return time_to_str(last);
 110         else
 111                 return NULL;
 112 }
 113
 114 struct bpph **get_bpph_list(const char *archive_url, const char *pkg_status)
 115 {
 116         char *url, *key, *tmp;
 117         struct bpph **result;
 118         struct json_object *o, *bpph_json, *o_next;
 119         char *created_since_date;
 120         int ok;
 121
 122         url = malloc(strlen(archive_url)
 123                      + strlen(QUERY_GET_PUBLISHED_BINARIES)
 124                      + 1);
 125         strcpy(url, archive_url);
 126         strcat(url, QUERY_GET_PUBLISHED_BINARIES);
 127
 128         key = get_bpph_list_cache_key(archive_url);
 129
 130         result = get_bpph_list_from_cache(key);
 131
 132         if (result) {
 133                 created_since_date = get_last_creation_date(result);
 134
 135                 if (created_since_date) {
 136                         printf("Update package since: %s\n",
 137                                created_since_date);
 138
 139                         tmp = malloc(strlen(url)
 140                                      + strlen("&created_since_date=")
 141                                      + strlen(created_since_date)+1);
 142                         strcpy(tmp, url);
 143                         strcat(tmp, "&created_since_date=");
 144                         strcat(tmp, created_since_date);
 145
 146                         free(url);
 147                         url = tmp;
 148
 149                         free(created_since_date);
 150                 }
 151         }
 152
 153         ok = 1;
 154         while (url) {
 155                 o = get_json_object(url);
 156                 free(url);
 157                 url = NULL;
 158
 159                 if (!o) {
 160                         ok = 0;
 161                         break;
 162                 }
 163
 164                 result = bpph_list_append_list(result,
 165                                                json_object_to_bpph_list(o));
 166
 167                 o_next = json_object_object_get(o, "next_collection_link");
 168
 169                 if (o_next)
 170                         url = strdup(json_object_get_string(o_next));
 171
 172                 json_object_put(o);
 173         }
 174
 175         if (ok) {
 176                 bpph_json = bpph_list_to_json(result);
 177                 fcache_put(key, json_object_to_json_string(bpph_json));
 178                 json_object_put(bpph_json);
 179         }
 180
 181         free(key);
 182
 183         return result;
 184 }
 185
 186 int get_download_count(const char *archive_url)
 187 {
 188         int n = strlen(archive_url) + strlen(QUERY_GET_DOWNLOAD_COUNT) + 1;
 189         char *url = malloc(n);
 190         int result;
 191         json_object *obj;
 192
 193         strcpy(url, archive_url);
 194         strcat(url, QUERY_GET_DOWNLOAD_COUNT);
 195
 196         obj = get_json_object(url);
 197         free(url);
 198
 199         if (!obj)
 200                 return -1;
 201
 202         result = json_object_get_int(obj);
 203
 204         json_object_put(obj);
 205
 206         return result;
 207 }
 208
 209 const struct distro_arch_series *get_distro_arch_series(const char *url)
 210 {
 211         json_object *obj;
 212         const struct distro_arch_series *distro;
 213         char *content;
 214
 215         distro = cache_get(url);
 216         if (distro)
 217                 return (struct distro_arch_series *)distro;
 218
 219         content = get_url_content(url, 1);
 220
 221         if (!content)
 222                 return NULL;
 223
 224         obj = json_tokener_parse(content);
 225
 226         free(content);
 227
 228         if (!obj)
 229                 return NULL;
 230
 231         distro = json_object_to_distro_arch_series(obj);
 232
 233         json_object_put(obj);
 234
 235         cache_put(url, distro, (void (*)(void *))&distro_arch_series_free);
 236
 237         return distro;
 238 }
 239
 240 const struct distro_series *get_distro_series(const char *url)
 241 {
 242         json_object *obj;
 243         const struct distro_series *distro;
 244         char *content;
 245
 246         distro = cache_get(url);
 247         if (distro)
 248                 return (struct distro_series *)distro;
 249
 250         content = get_url_content(url, 1);
 251
 252         if (!content)
 253                 return NULL;
 254
 255         obj = json_tokener_parse(content);
 256
 257         free(content);
 258
 259         if (!obj)
 260                 return NULL;
 261
 262         distro = json_object_to_distro_series(obj);
 263
 264         json_object_put(obj);
 265
 266         cache_put(url, distro, (void (*)(void *))&distro_series_free);
 267
 268         return distro;
 269 }
 270
 271 struct daily_download_total **get_daily_download_totals(const char *binary_url)
 272 {
 273         char *url;
 274         json_object *obj;
 275         struct daily_download_total **result = NULL;
 276
 277         url = malloc(strlen(binary_url)+
 278                      strlen(QUERY_GET_DAILY_DOWNLOAD_TOTALS)+1);
 279
 280         strcpy(url, binary_url);
 281         strcat(url, QUERY_GET_DAILY_DOWNLOAD_TOTALS);
 282
 283         obj = get_json_object(url);
 284
 285         if (obj) {
 286                 result = json_object_to_daily_download_totals(obj);
 287                 json_object_put(obj);
 288         }
 289
 290         free(url);
 291
 292         return result;
 293 }
 294