273 lines
9.7 KiB
C
273 lines
9.7 KiB
C
#ifndef LIGHTNING_COMMON_JSON_H
|
|
#define LIGHTNING_COMMON_JSON_H
|
|
#include "config.h"
|
|
#include <ccan/short_types/short_types.h>
|
|
#include <ccan/tal/tal.h>
|
|
#include <common/errcode.h>
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
|
|
#define JSMN_STRICT 1
|
|
# include <external/jsmn/jsmn.h>
|
|
|
|
struct amount_sat;
|
|
struct amount_msat;
|
|
struct bitcoin_tx;
|
|
struct bitcoin_txid;
|
|
struct channel_id;
|
|
struct json_escape;
|
|
struct json_stream;
|
|
struct pubkey;
|
|
struct node_id;
|
|
struct sha256;
|
|
struct preimage;
|
|
struct secret;
|
|
struct short_channel_id;
|
|
struct timeabs;
|
|
struct timespec;
|
|
struct wallet_payment;
|
|
struct wallet_tx;
|
|
struct wireaddr;
|
|
struct wireaddr_internal;
|
|
|
|
|
|
/* Include " if it's a string. */
|
|
const char *json_tok_full(const char *buffer, const jsmntok_t *t);
|
|
|
|
/* Include " if it's a string. */
|
|
int json_tok_full_len(const jsmntok_t *t);
|
|
|
|
/* Is this a string equal to str? */
|
|
bool json_tok_streq(const char *buffer, const jsmntok_t *tok, const char *str);
|
|
|
|
/* Allocate a tal string copy */
|
|
char *json_strdup(const tal_t *ctx, const char *buffer, const jsmntok_t *tok);
|
|
|
|
/* Decode a hex-encoded binary */
|
|
u8 *json_tok_bin_from_hex(const tal_t *ctx, const char *buffer, const jsmntok_t *tok);
|
|
|
|
/* Decode a hex-encoded payment preimage */
|
|
bool json_to_preimage(const char *buffer, const jsmntok_t *tok, struct preimage *preimage);
|
|
|
|
/* Extract number from this (may be a string, or a number literal) */
|
|
bool json_to_number(const char *buffer, const jsmntok_t *tok,
|
|
unsigned int *num);
|
|
|
|
/* Extract number from this (may be a string, or a number literal) */
|
|
bool json_to_u64(const char *buffer, const jsmntok_t *tok,
|
|
uint64_t *num);
|
|
|
|
/* Extract signed 64 bit integer from this (may be a string, or a number literal) */
|
|
bool json_to_s64(const char *buffer, const jsmntok_t *tok, s64 *num);
|
|
|
|
/* Extract number from this (may be a string, or a number literal) */
|
|
bool json_to_u32(const char *buffer, const jsmntok_t *tok,
|
|
uint32_t *num);
|
|
|
|
/* Extract number from this (may be a string, or a number literal) */
|
|
bool json_to_u16(const char *buffer, const jsmntok_t *tok,
|
|
uint16_t *num);
|
|
|
|
/* Extract double from this (must be a number literal) */
|
|
bool json_to_double(const char *buffer, const jsmntok_t *tok, double *num);
|
|
|
|
/* Extract signed integer from this (may be a string, or a number literal) */
|
|
bool json_to_int(const char *buffer, const jsmntok_t *tok, int *num);
|
|
|
|
/* Extract an error code from this (may be a string, or a number literal) */
|
|
bool json_to_errcode(const char *buffer, const jsmntok_t *tok, errcode_t *errcode);
|
|
|
|
/* Extract boolean from this */
|
|
bool json_to_bool(const char *buffer, const jsmntok_t *tok, bool *b);
|
|
|
|
/* Extract a secret from this. */
|
|
bool json_to_secret(const char *buffer, const jsmntok_t *tok, struct secret *dest);
|
|
|
|
/* Is this a number? [0..9]+ */
|
|
bool json_tok_is_num(const char *buffer, const jsmntok_t *tok);
|
|
|
|
/* Is this the null primitive? */
|
|
bool json_tok_is_null(const char *buffer, const jsmntok_t *tok);
|
|
|
|
/* Returns next token with same parent (WARNING: slow!). */
|
|
const jsmntok_t *json_next(const jsmntok_t *tok);
|
|
|
|
/* Get top-level member. */
|
|
const jsmntok_t *json_get_member(const char *buffer, const jsmntok_t tok[],
|
|
const char *label);
|
|
|
|
/* Get index'th array member. */
|
|
const jsmntok_t *json_get_arr(const jsmntok_t tok[], size_t index);
|
|
|
|
/* If input is complete and valid, return tokens. */
|
|
jsmntok_t *json_parse_input(const tal_t *ctx,
|
|
const char *input, int len, bool *valid);
|
|
|
|
/* Convert a jsmntype_t enum to a human readable string. */
|
|
const char *jsmntype_to_string(jsmntype_t t);
|
|
|
|
/* Print a json value for debugging purposes. */
|
|
void json_tok_print(const char *buffer, const jsmntok_t *params);
|
|
|
|
/* Return a copy of a json value as an array. */
|
|
jsmntok_t *json_tok_copy(const tal_t *ctx, const jsmntok_t *tok);
|
|
|
|
/*
|
|
* Remove @num json values from a json array or object @obj. @tok points
|
|
* to the first value to remove. The array @tokens will be resized.
|
|
*/
|
|
void json_tok_remove(jsmntok_t **tokens,
|
|
jsmntok_t *obj_or_array, const jsmntok_t *tok, size_t num);
|
|
|
|
/* Guide is a string with . for members, [] around indexes. */
|
|
const jsmntok_t *json_delve(const char *buffer,
|
|
const jsmntok_t *tok,
|
|
const char *guide);
|
|
|
|
/* Iterator macro for array: i is counter, t is token ptr, arr is JSMN_ARRAY */
|
|
#define json_for_each_arr(i, t, arr) \
|
|
for (i = 0, t = (arr) + 1; i < (arr)->size; t = json_next(t), i++)
|
|
|
|
/* Iterator macro for object: i is counter, t is token ptr (t+1 is
|
|
* contents of obj member), obj is JSMN_OBJECT */
|
|
#define json_for_each_obj(i, t, obj) \
|
|
for (i = 0, t = (obj) + 1; i < (obj)->size; t = json_next(t+1), i++)
|
|
|
|
|
|
/* Helpers for outputting JSON results */
|
|
|
|
/* '"fieldname" : "0289abcdef..."' or "0289abcdef..." if fieldname is NULL */
|
|
void json_add_pubkey(struct json_stream *response,
|
|
const char *fieldname,
|
|
const struct pubkey *key);
|
|
|
|
/* '"fieldname" : "89abcdef..."' or "89abcdef..." if fieldname is NULL */
|
|
void json_add_secret(struct json_stream *response,
|
|
const char *fieldname,
|
|
const struct secret *secret);
|
|
|
|
/* '"fieldname" : "0289abcdef..."' or "0289abcdef..." if fieldname is NULL */
|
|
void json_add_node_id(struct json_stream *response,
|
|
const char *fieldname,
|
|
const struct node_id *id);
|
|
|
|
/* '"fieldname" : <hexrev>' or "<hexrev>" if fieldname is NULL */
|
|
void json_add_txid(struct json_stream *result, const char *fieldname,
|
|
const struct bitcoin_txid *txid);
|
|
|
|
/* '"fieldname" : "1234:5:6"' */
|
|
void json_add_short_channel_id(struct json_stream *response,
|
|
const char *fieldname,
|
|
const struct short_channel_id *id);
|
|
|
|
/* JSON serialize a network address for a node */
|
|
void json_add_address(struct json_stream *response, const char *fieldname,
|
|
const struct wireaddr *addr);
|
|
|
|
/* JSON serialize a network address for a node. */
|
|
void json_add_address_internal(struct json_stream *response,
|
|
const char *fieldname,
|
|
const struct wireaddr_internal *addr);
|
|
|
|
/* '"fieldname" : "value"' or '"value"' if fieldname is NULL. Turns
|
|
* any non-printable chars into JSON escapes, but leaves existing escapes alone.
|
|
*/
|
|
void json_add_string(struct json_stream *result, const char *fieldname, const char *value);
|
|
|
|
/* '"fieldname" : "value"' or '"value"' if fieldname is NULL. String must
|
|
* already be JSON escaped as necessary. */
|
|
void json_add_escaped_string(struct json_stream *result,
|
|
const char *fieldname,
|
|
const struct json_escape *esc TAKES);
|
|
|
|
/* '"fieldname" : literal' or 'literal' if fieldname is NULL*/
|
|
void json_add_literal(struct json_stream *result, const char *fieldname,
|
|
const char *literal, int len);
|
|
/* '"fieldname" : value' or 'value' if fieldname is NULL */
|
|
void json_add_double(struct json_stream *result, const char *fieldname,
|
|
double value);
|
|
/* '"fieldname" : value' or 'value' if fieldname is NULL */
|
|
void json_add_num(struct json_stream *result, const char *fieldname,
|
|
unsigned int value);
|
|
/* '"fieldname" : value' or 'value' if fieldname is NULL */
|
|
void json_add_u64(struct json_stream *result, const char *fieldname,
|
|
uint64_t value);
|
|
/* '"fieldname" : value' or 'value' if fieldname is NULL */
|
|
void json_add_s64(struct json_stream *result, const char *fieldname,
|
|
int64_t value);
|
|
/* '"fieldname" : value' or 'value' if fieldname is NULL */
|
|
void json_add_u32(struct json_stream *result, const char *fieldname,
|
|
uint32_t value);
|
|
/* '"fieldname" : value' or 'value' if fieldname is NULL */
|
|
void json_add_s32(struct json_stream *result, const char *fieldname,
|
|
int32_t value);
|
|
/* '"fieldname" : true|false' or 'true|false' if fieldname is NULL */
|
|
void json_add_bool(struct json_stream *result, const char *fieldname,
|
|
bool value);
|
|
|
|
/* '"fieldname" : null' or 'null' if fieldname is NULL */
|
|
void json_add_null(struct json_stream *stream, const char *fieldname);
|
|
|
|
/* '"fieldname" : "0189abcdef..."' or "0189abcdef..." if fieldname is NULL */
|
|
void json_add_hex(struct json_stream *result, const char *fieldname,
|
|
const void *data, size_t len);
|
|
/* '"fieldname" : "0189abcdef..."' or "0189abcdef..." if fieldname is NULL */
|
|
void json_add_hex_talarr(struct json_stream *result,
|
|
const char *fieldname,
|
|
const tal_t *data);
|
|
/* '"fieldname" : "010000000001..."' or "010000000001..." if fieldname is NULL */
|
|
void json_add_tx(struct json_stream *result,
|
|
const char *fieldname,
|
|
const struct bitcoin_tx *tx);
|
|
|
|
/* Adds both a 'raw' number field and an 'amount_msat' field */
|
|
void json_add_amount_msat_compat(struct json_stream *result,
|
|
struct amount_msat msat,
|
|
const char *rawfieldname,
|
|
const char *msatfieldname)
|
|
NO_NULL_ARGS;
|
|
|
|
/* Adds both a 'raw' number field and an 'amount_msat' field */
|
|
void json_add_amount_sat_compat(struct json_stream *result,
|
|
struct amount_sat sat,
|
|
const char *rawfieldname,
|
|
const char *msatfieldname)
|
|
NO_NULL_ARGS;
|
|
|
|
/* Adds an 'msat' field */
|
|
void json_add_amount_msat_only(struct json_stream *result,
|
|
const char *msatfieldname,
|
|
struct amount_msat msat)
|
|
NO_NULL_ARGS;
|
|
|
|
/* Adds an 'msat' field */
|
|
void json_add_amount_sat_only(struct json_stream *result,
|
|
const char *msatfieldname,
|
|
struct amount_sat sat)
|
|
NO_NULL_ARGS;
|
|
|
|
void json_add_timeabs(struct json_stream *result, const char *fieldname,
|
|
struct timeabs t);
|
|
|
|
/* used in log.c and notification.c*/
|
|
void json_add_time(struct json_stream *result, const char *fieldname,
|
|
struct timespec ts);
|
|
|
|
void json_add_sha256(struct json_stream *result, const char *fieldname,
|
|
const struct sha256 *hash);
|
|
|
|
void json_add_preimage(struct json_stream *result, const char *fieldname,
|
|
const struct preimage *preimage);
|
|
|
|
/* Add any json token */
|
|
void json_add_tok(struct json_stream *result, const char *fieldname,
|
|
const jsmntok_t *tok, const char *buffer);
|
|
|
|
/* Add an error code */
|
|
void json_add_errcode(struct json_stream *result, const char *fieldname,
|
|
errcode_t code);
|
|
|
|
|
|
#endif /* LIGHTNING_COMMON_JSON_H */
|