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ndb: make NostrEvents immutable

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Since we can't mutate NdbNotes, let's update the existing codebase to
generate and sign ids on NostrEvent constructions. This will allow us to
match NdbNote's constructor
This commit is contained in:
William Casarin
2023-07-25 08:58:06 -07:00
parent e3c04465fc
commit 2f8aa29e92
47 changed files with 2211 additions and 462 deletions
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40
nostrdb/nostrdb.h
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@@ -12,6 +12,12 @@ struct ndb_str {
};
};
struct ndb_keypair {
unsigned char pubkey[32];
unsigned char secret[32];
unsigned char pair[96];
};
// these must be byte-aligned, they are directly accessing the serialized data
// representation
#pragma pack(push, 1)
@@ -47,7 +53,7 @@ struct ndb_note {
unsigned char padding[3]; // keep things aligned
unsigned char id[32];
unsigned char pubkey[32];
unsigned char signature[64];
unsigned char sig[64];
uint32_t created_at;
uint32_t kind;
@@ -62,6 +68,7 @@ struct ndb_note {
#pragma pack(pop)
struct ndb_builder {
struct cursor mem;
struct cursor note_cur;
struct cursor strings;
struct cursor str_indices;
@@ -77,18 +84,24 @@ struct ndb_iterator {
int index;
};
// HI BUILDER
// HELPERS
int ndb_calculate_id(struct ndb_note *note, unsigned char *buf, int buflen);
int ndb_sign_id(struct ndb_keypair *keypair, unsigned char id[32], unsigned char sig[64]);
int ndb_create_keypair(struct ndb_keypair *key);
int ndb_decode_key(const char *secstr, struct ndb_keypair *keypair);
// BUILDER
int ndb_note_from_json(const char *json, int len, struct ndb_note **, unsigned char *buf, int buflen);
int ndb_builder_new(struct ndb_builder *builder, unsigned char *buf, int bufsize);
int ndb_builder_finalize(struct ndb_builder *builder, struct ndb_note **note);
int ndb_builder_init(struct ndb_builder *builder, unsigned char *buf, int bufsize);
int ndb_builder_finalize(struct ndb_builder *builder, struct ndb_note **note, struct ndb_keypair *privkey);
int ndb_builder_set_content(struct ndb_builder *builder, const char *content, int len);
void ndb_builder_set_signature(struct ndb_builder *builder, unsigned char *signature);
void ndb_builder_set_created_at(struct ndb_builder *builder, uint32_t created_at);
void ndb_builder_set_sig(struct ndb_builder *builder, unsigned char *sig);
void ndb_builder_set_pubkey(struct ndb_builder *builder, unsigned char *pubkey);
void ndb_builder_set_id(struct ndb_builder *builder, unsigned char *id);
void ndb_builder_set_kind(struct ndb_builder *builder, uint32_t kind);
int ndb_builder_new_tag(struct ndb_builder *builder);
int ndb_builder_push_tag_str(struct ndb_builder *builder, const char *str, int len);
// BYE BUILDER
static inline struct ndb_str ndb_note_str(struct ndb_note *note,
union ndb_packed_str *pstr)
@@ -111,17 +124,6 @@ static inline struct ndb_str ndb_tag_str(struct ndb_note *note,
return ndb_note_str(note, &tag->strs[ind]);
}
static inline int ndb_tag_matches_char(struct ndb_note *note,
struct ndb_tag *tag, int ind, char c)
{
struct ndb_str str = ndb_tag_str(note, tag, ind);
if (str.str[0] == '\0')
return 0;
else if (str.str[0] == c)
return 1;
return 0;
}
static inline struct ndb_str ndb_iter_tag_str(struct ndb_iterator *iter,
int ind)
{
@@ -138,9 +140,9 @@ static inline unsigned char * ndb_note_pubkey(struct ndb_note *note)
return note->pubkey;
}
static inline unsigned char * ndb_note_signature(struct ndb_note *note)
static inline unsigned char * ndb_note_sig(struct ndb_note *note)
{
return note->signature;
return note->sig;
}
static inline uint32_t ndb_note_created_at(struct ndb_note *note)