1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/*
This file is part of GNUnet
Copyright (C) 2014, 2015, 2016 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNUnet; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file json/json_generator.c
* @brief helper functions for generating JSON from GNUnet data structures
* @author Sree Harsha Totakura <sreeharsha@totakura.in>
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_json_lib.h"
/**
* Convert binary data to a JSON string
* with the base32crockford encoding.
*
* @param data binary data
* @param size size of @a data in bytes
* @return json string that encodes @a data
*/
json_t *
GNUNET_JSON_from_data (const void *data,
size_t size)
{
char *buf;
json_t *json;
buf = GNUNET_STRINGS_data_to_string_alloc (data, size);
json = json_string (buf);
GNUNET_free (buf);
return json;
}
/**
* Convert absolute timestamp to a json string.
*
* @param stamp the time stamp
* @return a json string with the timestamp in @a stamp
*/
json_t *
GNUNET_JSON_from_time_abs (struct GNUNET_TIME_Absolute stamp)
{
json_t *j;
char *mystr;
int ret;
GNUNET_assert (GNUNET_OK ==
GNUNET_TIME_round_abs (&stamp));
if (stamp.abs_value_us == GNUNET_TIME_UNIT_FOREVER_ABS.abs_value_us)
return json_string ("/never/");
ret = GNUNET_asprintf (&mystr,
"/Date(%llu)/",
(unsigned long long) (stamp.abs_value_us / (1000LL * 1000LL)));
GNUNET_assert (ret > 0);
j = json_string (mystr);
GNUNET_free (mystr);
return j;
}
/**
* Convert absolute timestamp to a json string.
*
* @param stamp the time stamp
* @return a json string with the timestamp in @a stamp
*/
json_t *
GNUNET_JSON_from_time_abs_nbo (struct GNUNET_TIME_AbsoluteNBO stamp)
{
return GNUNET_JSON_from_time_abs (GNUNET_TIME_absolute_ntoh (stamp));
}
/**
* Convert relative timestamp to a json string.
*
* @param stamp the time stamp
* @return a json string with the timestamp in @a stamp
*/
json_t *
GNUNET_JSON_from_time_rel (struct GNUNET_TIME_Relative stamp)
{
json_t *j;
char *mystr;
int ret;
GNUNET_assert (GNUNET_OK ==
GNUNET_TIME_round_rel (&stamp));
if (stamp.rel_value_us == GNUNET_TIME_UNIT_FOREVER_REL.rel_value_us)
return json_string ("/forever/");
ret = GNUNET_asprintf (&mystr,
"/Delay(%llu)/",
(unsigned long long) (stamp.rel_value_us / (1000LL * 1000LL)));
GNUNET_assert (ret > 0);
j = json_string (mystr);
GNUNET_free (mystr);
return j;
}
/**
* Convert RSA public key to JSON.
*
* @param pk public key to convert
* @return corresponding JSON encoding
*/
json_t *
GNUNET_JSON_from_rsa_public_key (const struct GNUNET_CRYPTO_RsaPublicKey *pk)
{
char *buf;
size_t buf_len;
json_t *ret;
buf_len = GNUNET_CRYPTO_rsa_public_key_encode (pk,
&buf);
ret = GNUNET_JSON_from_data (buf,
buf_len);
GNUNET_free (buf);
return ret;
}
/**
* Convert RSA signature to JSON.
*
* @param sig signature to convert
* @return corresponding JSON encoding
*/
json_t *
GNUNET_JSON_from_rsa_signature (const struct GNUNET_CRYPTO_RsaSignature *sig)
{
char *buf;
size_t buf_len;
json_t *ret;
buf_len = GNUNET_CRYPTO_rsa_signature_encode (sig,
&buf);
ret = GNUNET_JSON_from_data (buf,
buf_len);
GNUNET_free (buf);
return ret;
}
/* End of json/json_generator.c */
|
