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nostrdb/Inital embedded content parser

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This adds some initial code for nostrdb content parsing.

We still need to write tests for encoding and decoding, so this is
likely not working yet.

Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
William Casarin
2023-12-27 12:43:20 -08:00
committed by Daniel D’Aquino
parent 9ff1f69a82
commit e0a2dcf3db
8 changed files with 253 additions and 102 deletions
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7
nostrdb/src/bolt11/bech32.c
View File

@@ -91,7 +91,7 @@ int bech32_encode(char *output, const char *hrp, const uint8_t *data, size_t dat
return 1;
}
bech32_encoding bech32_decode_len(char* hrp, uint8_t *data, size_t *data_len, const char *input, size_t input_len) {
bech32_encoding bech32_decode_len(char* hrp, uint8_t *data, size_t *data_len, const char *input, size_t input_len, int max_hrp_len) {
uint32_t chk = 1;
size_t i;
size_t hrp_len;
@@ -104,6 +104,8 @@ bech32_encoding bech32_decode_len(char* hrp, uint8_t *data, size_t *data_len, co
++(*data_len);
}
hrp_len = input_len - (1 + *data_len);
if (hrp_len > max_hrp_len)
return BECH32_ENCODING_NONE;
if (1 + *data_len >= input_len || *data_len < 6) {
return BECH32_ENCODING_NONE;
}
@@ -158,13 +160,14 @@ bech32_encoding bech32_decode(char* hrp, uint8_t *data, size_t *data_len, const
if (len > max_input_len) {
return BECH32_ENCODING_NONE;
}
return bech32_decode_len(hrp, data, data_len, input, len);
return bech32_decode_len(hrp, data, data_len, input, len, 8);
}
int bech32_convert_bits(uint8_t* out, size_t* outlen, int outbits, const uint8_t* in, size_t inlen, int inbits, int pad) {
uint32_t val = 0;
int bits = 0;
uint32_t maxv = (((uint32_t)1) << outbits) - 1;
*outlen = 0;
while (inlen--) {
val = (val << inbits) | *(in++);
bits += inbits;

3
nostrdb/src/bolt11/bech32.h
View File

@@ -123,7 +123,8 @@ bech32_encoding bech32_decode_len(
uint8_t *data,
size_t *data_len,
const char *input,
size_t input_len
size_t input_len,
int max_prefix_len
);
/* Helper from bech32: translates inbits-bit bytes to outbits-bit bytes.

1
nostrdb/src/bolt11/bolt11.h
View File

@@ -3,6 +3,7 @@
#include "short_types.h"
#include "hash_u5.h"
#include "amount.h"
#include "list.h"
#include "amount.h"
#include "node_id.h"