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3 Copyright (C) 2014, 2015, 2016 GNUnet e.V.
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
18 SPDX-License-Identifier: AGPL3.0-or-later
21 * @file json/json_generator.c
22 * @brief helper functions for generating JSON from GNUnet data structures
23 * @author Sree Harsha Totakura <sreeharsha@totakura.in>
26 #include "gnunet_util_lib.h"
27 #include "gnunet_json_lib.h"
31 * Convert binary data to a JSON string
32 * with the base32crockford encoding.
34 * @param data binary data
35 * @param size size of @a data in bytes
36 * @return json string that encodes @a data
39 GNUNET_JSON_from_data (const void *data,
45 buf = GNUNET_STRINGS_data_to_string_alloc (data, size);
46 json = json_string (buf);
53 * Convert absolute timestamp to a json string.
55 * @param stamp the time stamp
56 * @return a json string with the timestamp in @a stamp
59 GNUNET_JSON_from_time_abs (struct GNUNET_TIME_Absolute stamp)
65 GNUNET_assert (GNUNET_OK ==
66 GNUNET_TIME_round_abs (&stamp));
67 if (stamp.abs_value_us == GNUNET_TIME_UNIT_FOREVER_ABS.abs_value_us)
68 return json_string ("/never/");
69 ret = GNUNET_asprintf (&mystr,
71 (unsigned long long) (stamp.abs_value_us / (1000LL * 1000LL)));
72 GNUNET_assert (ret > 0);
73 j = json_string (mystr);
80 * Convert absolute timestamp to a json string.
82 * @param stamp the time stamp
83 * @return a json string with the timestamp in @a stamp
86 GNUNET_JSON_from_time_abs_nbo (struct GNUNET_TIME_AbsoluteNBO stamp)
88 return GNUNET_JSON_from_time_abs (GNUNET_TIME_absolute_ntoh (stamp));
93 * Convert relative timestamp to a json string.
95 * @param stamp the time stamp
96 * @return a json string with the timestamp in @a stamp
99 GNUNET_JSON_from_time_rel (struct GNUNET_TIME_Relative stamp)
105 GNUNET_assert (GNUNET_OK ==
106 GNUNET_TIME_round_rel (&stamp));
107 if (stamp.rel_value_us == GNUNET_TIME_UNIT_FOREVER_REL.rel_value_us)
108 return json_string ("/forever/");
109 ret = GNUNET_asprintf (&mystr,
111 (unsigned long long) (stamp.rel_value_us / (1000LL * 1000LL)));
112 GNUNET_assert (ret > 0);
113 j = json_string (mystr);
120 * Convert RSA public key to JSON.
122 * @param pk public key to convert
123 * @return corresponding JSON encoding
126 GNUNET_JSON_from_rsa_public_key (const struct GNUNET_CRYPTO_RsaPublicKey *pk)
132 buf_len = GNUNET_CRYPTO_rsa_public_key_encode (pk,
134 ret = GNUNET_JSON_from_data (buf,
142 * Convert RSA signature to JSON.
144 * @param sig signature to convert
145 * @return corresponding JSON encoding
148 GNUNET_JSON_from_rsa_signature (const struct GNUNET_CRYPTO_RsaSignature *sig)
154 buf_len = GNUNET_CRYPTO_rsa_signature_encode (sig,
156 ret = GNUNET_JSON_from_data (buf,
163 * Convert Gns record to JSON.
165 * @param rname name of record
166 * @param rd record data
167 * @return corresponding JSON encoding
170 GNUNET_JSON_from_gns_record (const char* rname,
171 const struct GNUNET_GNSRECORD_Data *rd)
173 struct GNUNET_TIME_Absolute expiration_time;
174 const char *expiration_time_str;
175 const char *record_type_str;
180 value_str = GNUNET_GNSRECORD_value_to_string(rd->record_type,rd->data,rd->data_size);
181 expiration_time = GNUNET_GNSRECORD_record_get_expiration_time(1, rd);
182 expiration_time_str = GNUNET_STRINGS_absolute_time_to_string(expiration_time);
183 flags = (int)rd->flags; //maybe necessary
184 record_type_str = GNUNET_GNSRECORD_number_to_typename(rd->record_type);
186 // ? for possible NULL values
189 ret = json_pack ("{s:s?,s:s?,s:s?,s:i,s:s?}",
203 ret = json_pack ("{s:s?,s:s?,s:s?,s:i}",
213 GNUNET_free_non_null(value_str);
218 /* End of json/json_generator.c */