GNUnet  0.11.x
Functions
json_generator.c File Reference

helper functions for generating JSON from GNUnet data structures More...

#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_json_lib.h"
Include dependency graph for json_generator.c:

Go to the source code of this file.

Functions

json_t * GNUNET_JSON_from_data (const void *data, size_t size)
 Convert binary data to a JSON string with the base32crockford encoding. More...
 
json_t * GNUNET_JSON_from_time_abs (struct GNUNET_TIME_Absolute stamp)
 Convert absolute timestamp to a json string. More...
 
json_t * GNUNET_JSON_from_time_abs_nbo (struct GNUNET_TIME_AbsoluteNBO stamp)
 Convert absolute timestamp to a json string. More...
 
json_t * GNUNET_JSON_from_time_rel (struct GNUNET_TIME_Relative stamp)
 Convert relative timestamp to a json string. More...
 
json_t * GNUNET_JSON_from_rsa_public_key (const struct GNUNET_CRYPTO_RsaPublicKey *pk)
 Convert RSA public key to JSON. More...
 
json_t * GNUNET_JSON_from_rsa_signature (const struct GNUNET_CRYPTO_RsaSignature *sig)
 Convert RSA signature to JSON. More...
 
json_t * GNUNET_JSON_from_gnsrecord (const char *rname, const struct GNUNET_GNSRECORD_Data *rd, unsigned int rd_count)
 Convert GNS record to JSON. More...
 

Detailed Description

helper functions for generating JSON from GNUnet data structures

Author
Sree Harsha Totakura sreeh.nosp@m.arsh.nosp@m.a@tot.nosp@m.akur.nosp@m.a.in

Definition in file json_generator.c.

Function Documentation

◆ GNUNET_JSON_from_data()

json_t* GNUNET_JSON_from_data ( const void *  data,
size_t  size 
)

Convert binary data to a JSON string with the base32crockford encoding.

Parameters
databinary data
sizesize of data in bytes
Returns
json string that encodes data

Definition at line 39 of file json_generator.c.

References buf, GNUNET_free, and GNUNET_STRINGS_data_to_string_alloc().

Referenced by GNUNET_JSON_from_rsa_public_key(), and GNUNET_JSON_from_rsa_signature().

41 {
42  char *buf;
43  json_t *json;
44 
46  json = json_string (buf);
47  GNUNET_free (buf);
48  return json;
49 }
static char buf[2048]
static unsigned int size
Size of the "table".
Definition: peer.c:67
char * GNUNET_STRINGS_data_to_string_alloc(const void *buf, size_t size)
Return the base32crockford encoding of the given buffer.
Definition: strings.c:920
uint32_t data
The data value.
#define GNUNET_free(ptr)
Wrapper around free.
Here is the call graph for this function:
Here is the caller graph for this function:

◆ GNUNET_JSON_from_time_abs()

json_t* GNUNET_JSON_from_time_abs ( struct GNUNET_TIME_Absolute  stamp)

Convert absolute timestamp to a json string.

Parameters
stampthe time stamp
Returns
a json string with the timestamp in stamp

Definition at line 59 of file json_generator.c.

References GNUNET_TIME_Absolute::abs_value_us, GNUNET_assert, GNUNET_OK, GNUNET_TIME_round_abs(), and GNUNET_TIME_UNIT_FOREVER_ABS.

Referenced by GNUNET_JSON_from_time_abs_nbo().

60 {
61  json_t *j;
62 
64  GNUNET_TIME_round_abs (&stamp));
65 
66  j = json_object ();
67 
68  if (stamp.abs_value_us == GNUNET_TIME_UNIT_FOREVER_ABS.abs_value_us)
69  {
70  json_object_set_new (j,
71  "t_ms",
72  json_string ("never"));
73  return j;
74  }
75  json_object_set_new (j,
76  "t_ms",
77  json_integer ((json_int_t) (stamp.abs_value_us / 1000LL)));
78  return j;
79 }
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:83
uint64_t abs_value_us
The actual value.
#define GNUNET_TIME_UNIT_FOREVER_ABS
Constant used to specify "forever".
int GNUNET_TIME_round_abs(struct GNUNET_TIME_Absolute *at)
Round a time value so that it is suitable for transmission via JSON encodings.
Definition: time.c:80
Here is the call graph for this function:
Here is the caller graph for this function:

◆ GNUNET_JSON_from_time_abs_nbo()

json_t* GNUNET_JSON_from_time_abs_nbo ( struct GNUNET_TIME_AbsoluteNBO  stamp)

Convert absolute timestamp to a json string.

Parameters
stampthe time stamp
Returns
a json string with the timestamp in stamp

Definition at line 89 of file json_generator.c.

References GNUNET_JSON_from_time_abs(), and GNUNET_TIME_absolute_ntoh().

90 {
92 }
struct GNUNET_TIME_Absolute GNUNET_TIME_absolute_ntoh(struct GNUNET_TIME_AbsoluteNBO a)
Convert absolute time from network byte order.
Definition: time.c:673
json_t * GNUNET_JSON_from_time_abs(struct GNUNET_TIME_Absolute stamp)
Convert absolute timestamp to a json string.
Here is the call graph for this function:

◆ GNUNET_JSON_from_time_rel()

json_t* GNUNET_JSON_from_time_rel ( struct GNUNET_TIME_Relative  stamp)

Convert relative timestamp to a json string.

Parameters
stampthe time stamp
Returns
a json string with the timestamp in stamp

Definition at line 102 of file json_generator.c.

References GNUNET_assert, GNUNET_OK, GNUNET_TIME_round_rel(), GNUNET_TIME_UNIT_FOREVER_REL, and GNUNET_TIME_Relative::rel_value_us.

103 {
104  json_t *j;
105 
107  GNUNET_TIME_round_rel (&stamp));
108 
109  j = json_object ();
110 
111  if (stamp.rel_value_us == GNUNET_TIME_UNIT_FOREVER_REL.rel_value_us)
112  {
113  json_object_set_new (j,
114  "d_ms",
115  json_string ("forever"));
116  return j;
117  }
118  json_object_set_new (j,
119  "d_ms",
120  json_integer ((json_int_t) (stamp.rel_value_us / 1000LL)));
121  return j;
122 }
uint64_t rel_value_us
The actual value.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:83
#define GNUNET_TIME_UNIT_FOREVER_REL
Constant used to specify "forever".
int GNUNET_TIME_round_rel(struct GNUNET_TIME_Relative *rt)
Round a time value so that it is suitable for transmission via JSON encodings.
Definition: time.c:100
Here is the call graph for this function:

◆ GNUNET_JSON_from_rsa_public_key()

json_t* GNUNET_JSON_from_rsa_public_key ( const struct GNUNET_CRYPTO_RsaPublicKey pk)

Convert RSA public key to JSON.

Parameters
pkpublic key to convert
Returns
corresponding JSON encoding

Definition at line 132 of file json_generator.c.

References buf, GNUNET_CRYPTO_rsa_public_key_encode(), GNUNET_free, GNUNET_JSON_from_data(), and ret.

133 {
134  char *buf;
135  size_t buf_len;
136  json_t *ret;
137 
139  &buf);
140  ret = GNUNET_JSON_from_data (buf,
141  buf_len);
142  GNUNET_free (buf);
143  return ret;
144 }
size_t GNUNET_CRYPTO_rsa_public_key_encode(const struct GNUNET_CRYPTO_RsaPublicKey *key, char **buffer)
Encode the public key in a format suitable for storing it into a file.
Definition: crypto_rsa.c:346
static int ret
Return value of the commandline.
Definition: gnunet-abd.c:81
static char buf[2048]
#define GNUNET_free(ptr)
Wrapper around free.
json_t * GNUNET_JSON_from_data(const void *data, size_t size)
Convert binary data to a JSON string with the base32crockford encoding.
Here is the call graph for this function:

◆ GNUNET_JSON_from_rsa_signature()

json_t* GNUNET_JSON_from_rsa_signature ( const struct GNUNET_CRYPTO_RsaSignature sig)

Convert RSA signature to JSON.

Parameters
sigsignature to convert
Returns
corresponding JSON encoding

Definition at line 154 of file json_generator.c.

References buf, GNUNET_CRYPTO_rsa_signature_encode(), GNUNET_free, GNUNET_JSON_from_data(), and ret.

155 {
156  char *buf;
157  size_t buf_len;
158  json_t *ret;
159 
160  buf_len = GNUNET_CRYPTO_rsa_signature_encode (sig,
161  &buf);
162  ret = GNUNET_JSON_from_data (buf,
163  buf_len);
164  GNUNET_free (buf);
165  return ret;
166 }
size_t GNUNET_CRYPTO_rsa_signature_encode(const struct GNUNET_CRYPTO_RsaSignature *sig, char **buffer)
Encode the given signature in a format suitable for storing it into a file.
Definition: crypto_rsa.c:1073
static int ret
Return value of the commandline.
Definition: gnunet-abd.c:81
static char buf[2048]
#define GNUNET_free(ptr)
Wrapper around free.
json_t * GNUNET_JSON_from_data(const void *data, size_t size)
Convert binary data to a JSON string with the base32crockford encoding.
Here is the call graph for this function:

◆ GNUNET_JSON_from_gnsrecord()

json_t* GNUNET_JSON_from_gnsrecord ( const char *  rname,
const struct GNUNET_GNSRECORD_Data rd,
unsigned int  rd_count 
)

Convert GNS record to JSON.

Convert Gns record to JSON.

Parameters
rnamename of record
rdrecord data
Returns
corresponding JSON encoding

Definition at line 177 of file json_generator.c.

References data, data_size, GNUNET_assert, GNUNET_ERROR_TYPE_DEBUG, GNUNET_free, GNUNET_GNSRECORD_number_to_typename(), GNUNET_GNSRECORD_record_get_expiration_time(), GNUNET_GNSRECORD_value_to_string(), GNUNET_log, GNUNET_STRINGS_absolute_time_to_string(), record(), and records.

Referenced by handle_gns_response(), and namestore_list_iteration().

180 {
181  struct GNUNET_TIME_Absolute expiration_time;
182  const char *expiration_time_str;
183  const char *record_type_str;
184  char *value_str;
185  json_t *data;
186  json_t *record;
187  json_t *records;
188 
189  data = json_object ();
190  json_object_set_new (data,
191  "record_name",
192  json_string (rname));
193  records = json_array ();
194  for (int i = 0; i < rd_count; i++)
195  {
196  value_str = GNUNET_GNSRECORD_value_to_string (rd[i].record_type,
197  rd[i].data,
198  rd[i].data_size);
199  expiration_time = GNUNET_GNSRECORD_record_get_expiration_time (1, &rd[i]);
200  expiration_time_str = GNUNET_STRINGS_absolute_time_to_string (
201  expiration_time);
202  record_type_str = GNUNET_GNSRECORD_number_to_typename (rd[i].record_type);
204  "Packing %s %s %s %d\n",
205  value_str, record_type_str, expiration_time_str, rd[i].flags);
206  record = json_pack ("{s:s,s:s,s:s,s:i}",
207  "value",
208  value_str,
209  "record_type",
210  record_type_str,
211  "expiration_time",
212  expiration_time_str,
213  "flag",
214  rd[i].flags);
215  GNUNET_assert (NULL != record);
216  GNUNET_free (value_str);
217  json_array_append_new (records, record);
218  }
219  json_object_set_new (data, "data", records);
220  return data;
221 }
static size_t data_size
Number of bytes in data.
Definition: gnunet-abd.c:187
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
static unsigned int records
Number of records we found.
struct GNUNET_TIME_Absolute GNUNET_GNSRECORD_record_get_expiration_time(unsigned int rd_count, const struct GNUNET_GNSRECORD_Data *rd)
Returns the expiration time of the given block of records.
#define GNUNET_log(kind,...)
static void record(void *cls, size_t data_size, const void *data)
Process recorded audio data.
Time for absolute times used by GNUnet, in microseconds.
const char * GNUNET_STRINGS_absolute_time_to_string(struct GNUNET_TIME_Absolute t)
Like asctime, except for GNUnet time.
Definition: strings.c:742
uint32_t data
The data value.
char * GNUNET_GNSRECORD_value_to_string(uint32_t type, const void *data, size_t data_size)
Convert the &#39;value&#39; of a record to a string.
Definition: gnsrecord.c:143
const char * GNUNET_GNSRECORD_number_to_typename(uint32_t type)
Convert a type number (i.e.
Definition: gnsrecord.c:231
#define GNUNET_free(ptr)
Wrapper around free.
Here is the call graph for this function:
Here is the caller graph for this function: