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 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 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 struct tm *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 = mktime(&(*cur)->date_created);
 104                         if (t > last)
 105                                 last = t;
 106                 }
 107
 108         return localtime(&last);
 109 }
 110
 111 struct bpph **get_bpph_list(const char *archive_url, const char *pkg_status)
 112 {
 113         char *url, *key, *tmp;
 114         struct bpph **result = NULL;
 115         struct json_object *o, *bpph_json, *o_next;
 116         char *created_since_date;
 117         struct tm *tm;
 118         int ok;
 119
 120         url = malloc(strlen(archive_url)
 121                 + strlen(QUERY_GET_PUBLISHED_BINARIES)
 122                 + 1);
 123         strcpy(url, archive_url);
 124         strcat(url, QUERY_GET_PUBLISHED_BINARIES);
 125
 126         key = get_bpph_list_cache_key(archive_url);
 127
 128         result = get_bpph_list_from_cache(key);
 129
 130         if (result) {
 131                 tm = get_last_creation_date(result);
 132
 133                 created_since_date = malloc(200);
 134                 strftime(created_since_date,
 135                          100,
 136                          "%FT%T",
 137                          tm);
 138
 139                 printf("Update package since: %s\n", created_since_date);
 140
 141                 tmp = malloc(strlen(url)
 142                              + strlen("&created_since_date=")
 143                              + strlen(created_since_date)+1);
 144                 strcpy(tmp, url);
 145                 strcat(tmp, "&created_since_date=");
 146                 strcat(tmp, created_since_date);
 147
 148                 free(url);
 149                 url = tmp;
 150
 151                 free(created_since_date);
 152         }
 153
 154         ok = 1;
 155         while (url) {
 156                 o = get_json_object(url);
 157                 free(url);
 158                 url = NULL;
 159
 160                 if (!o) {
 161                         ok = 0;
 162                         break;
 163                 }
 164
 165                 result = bpph_list_append_list(result,
 166                                                json_object_to_bpph_list(o));
 167
 168                 o_next = json_object_object_get(o, "next_collection_link");
 169
 170                 if (o_next)
 171                         url = strdup(json_object_get_string(o_next));
 172
 173                 json_object_put(o);
 174
 175         }
 176
 177         if (ok) {
 178                 bpph_json = bpph_list_to_json(result);
 179                 fcache_put(key, json_object_to_json_string(bpph_json));
 180                 json_object_put(bpph_json);
 181         }
 182
 183         free(key);
 184
 185         return result;
 186 }
 187
 188 int get_download_count(const char *archive_url)
 189 {
 190         int n = strlen(archive_url) + strlen(QUERY_GET_DOWNLOAD_COUNT) + 1;
 191         char *url = malloc(n);
 192         int result;
 193         json_object *obj;
 194
 195         strcpy(url, archive_url);
 196         strcat(url, QUERY_GET_DOWNLOAD_COUNT);
 197
 198         obj = get_json_object(url);
 199         free(url);
 200
 201         if (!obj)
 202                 return -1;
 203
 204         result = json_object_get_int(obj);
 205
 206         json_object_put(obj);
 207
 208         return result;
 209 }
 210
 211 const struct distro_arch_series *get_distro_arch_series(const char *url)
 212 {
 213         json_object *obj;
 214         const struct distro_arch_series *distro;
 215         char *content;
 216
 217         distro = cache_get(url);
 218         if (distro)
 219                 return (struct distro_arch_series *)distro;
 220
 221         content = get_url_content(url, 1);
 222
 223         if (!content)
 224                 return NULL;
 225
 226         obj = json_tokener_parse(content);
 227
 228         free(content);
 229
 230         if (!obj)
 231                 return NULL;
 232
 233         distro = json_object_to_distro_arch_series(obj);
 234
 235         json_object_put(obj);
 236
 237         cache_put(url, distro, (void (*)(void *))&distro_arch_series_free);
 238
 239         return distro;
 240 }
 241
 242 const struct distro_series *get_distro_series(const char *url)
 243 {
 244         json_object *obj;
 245         const struct distro_series *distro;
 246         char *content;
 247
 248         distro = cache_get(url);
 249         if (distro)
 250                 return (struct distro_series *)distro;
 251
 252         content = get_url_content(url, 1);
 253
 254         if (!content)
 255                 return NULL;
 256
 257         obj = json_tokener_parse(content);
 258
 259         free(content);
 260
 261         if (!obj)
 262                 return NULL;
 263
 264         distro = json_object_to_distro_series(obj);
 265
 266         json_object_put(obj);
 267
 268         cache_put(url, distro, (void (*)(void *))&distro_series_free);
 269
 270         return distro;
 271 }
 272
 273 struct daily_download_total **get_daily_download_totals(const char *binary_url)
 274 {
 275         char *url;
 276         json_object *obj;
 277         struct daily_download_total **result = NULL;
 278
 279         url = malloc(strlen(binary_url)+
 280                      strlen(QUERY_GET_DAILY_DOWNLOAD_TOTALS)+1);
 281
 282         strcpy(url, binary_url);
 283         strcat(url, QUERY_GET_DAILY_DOWNLOAD_TOTALS);
 284
 285         obj = get_json_object(url);
 286
 287         if (obj) {
 288                 result = json_object_to_daily_download_totals(obj);
 289                 json_object_put(obj);
 290         }
 291
 292         free(url);
 293
 294         return result;
 295 }
 296