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ndb: bump nostrdb to support client->relay note processing
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@jb55
jb55 committed Sep 25, 2023
1 parent cdacbcf commit dacade2
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Showing 2 changed files with 180 additions and 66 deletions.
230 changes: 164 additions & 66 deletions nostrdb/nostrdb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -414,7 +414,8 @@ enum ndb_writer_msgtype {

struct ndb_ingester_event {
char *json;
int len;
unsigned client : 1; // ["EVENT", {...}] messages
unsigned len : 31;
};

struct ndb_writer_note {
Expand Down Expand Up @@ -730,6 +731,41 @@ static int ndb_process_profile_note(struct ndb_note *note,
return 1;
}

static int ndb_ingester_process_note(secp256k1_context *ctx,
struct ndb_note *note,
size_t note_size,
struct ndb_writer_msg *out)
{
// Verify! If it's an invalid note we don't need to
// bothter writing it to the database
if (!ndb_note_verify(ctx, note->pubkey, note->id, note->sig)) {
ndb_debug("signature verification failed\n");
return 0;
}

// we didn't find anything. let's send it
// to the writer thread
note = realloc(note, note_size);
assert(((uint64_t)note % 4) == 0);

if (note->kind == 0) {
struct ndb_profile_record_builder *b =
&out->profile.record;

ndb_process_profile_note(note, b);

out->type = NDB_WRITER_PROFILE;
out->profile.note.note = note;
out->profile.note.note_len = note_size;
} else {
out->type = NDB_WRITER_NOTE;
out->note.note = note;
out->note.note_len = note_size;
}

return 1;
}


static int ndb_ingester_process_event(secp256k1_context *ctx,
struct ndb_ingester *ingester,
Expand All @@ -739,12 +775,16 @@ static int ndb_ingester_process_event(secp256k1_context *ctx,
)
{
struct ndb_tce tce;
struct ndb_fce fce;
struct ndb_note *note;
struct ndb_ingest_controller controller;
struct ndb_id_cb cb;
void *buf;
int ok;
size_t bufsize, note_size;

ok = 0;

// we will use this to check if we already have it in the DB during
// ID parsing
controller.read_txn = read_txn;
Expand All @@ -762,6 +802,8 @@ static int ndb_ingester_process_event(secp256k1_context *ctx,
}

note_size =
ev->client ?
ndb_client_event_from_json(ev->json, ev->len, &fce, buf, bufsize, &cb) :
ndb_ws_event_from_json(ev->json, ev->len, &tce, buf, bufsize, &cb);

if (note_size == -42) {
Expand All @@ -775,54 +817,51 @@ static int ndb_ingester_process_event(secp256k1_context *ctx,

//ndb_debug("parsed evtype:%d '%.*s'\n", tce.evtype, ev->len, ev->json);

switch (tce.evtype) {
case NDB_TCE_NOTICE: goto cleanup;
case NDB_TCE_EOSE: goto cleanup;
case NDB_TCE_OK: goto cleanup;
case NDB_TCE_EVENT:
note = tce.event.note;
if (note != buf) {
ndb_debug("note buffer not equal to malloc'd buffer\n");
goto cleanup;
}
if (ev->client) {
switch (fce.evtype) {
case NDB_FCE_EVENT:
note = fce.event.note;
if (note != buf) {
ndb_debug("note buffer not equal to malloc'd buffer\n");
goto cleanup;
}

// Verify! If it's an invalid note we don't need to
// bothter writing it to the database
if (!ndb_note_verify(ctx, note->pubkey, note->id, note->sig)) {
ndb_debug("signature verification failed\n");
goto cleanup;
if (!ndb_ingester_process_note(ctx, note, note_size, out))
goto cleanup;
else {
// we're done with the original json, free it
free(ev->json);
return 1;
}
}
} else {
switch (tce.evtype) {
case NDB_TCE_NOTICE: goto cleanup;
case NDB_TCE_EOSE: goto cleanup;
case NDB_TCE_OK: goto cleanup;
case NDB_TCE_EVENT:
note = tce.event.note;
if (note != buf) {
ndb_debug("note buffer not equal to malloc'd buffer\n");
goto cleanup;
}

// we didn't find anything. let's send it
// to the writer thread
note = realloc(note, note_size);
assert(((uint64_t)note % 4) == 0);

if (note->kind == 0) {
struct ndb_profile_record_builder *b =
&out->profile.record;

ndb_process_profile_note(note, b);

out->type = NDB_WRITER_PROFILE;
out->profile.note.note = note;
out->profile.note.note_len = note_size;
} else {
out->type = NDB_WRITER_NOTE;
out->note.note = note;
out->note.note_len = note_size;
if (!ndb_ingester_process_note(ctx, note, note_size, out))
goto cleanup;
else {
// we're done with the original json, free it
free(ev->json);
return 1;
}
}

// there's nothing left to do with the original json, so free it
free(ev->json);
return 1;
}


cleanup:
free(ev->json);
free(buf);

return 0;
return ok;
}

static uint64_t ndb_get_last_key(MDB_txn *txn, MDB_dbi db)
Expand Down Expand Up @@ -1089,7 +1128,7 @@ static void ndb_write_version(struct ndb_lmdb *lmdb, MDB_txn *txn, uint64_t vers
return;
}

fprintf(stderr, "writing version %" PRIu64 "\n", version);
//fprintf(stderr, "writing version %" PRIu64 "\n", version);
}

static void *ndb_writer_thread(void *data)
Expand Down Expand Up @@ -1317,13 +1356,14 @@ static int ndb_ingester_destroy(struct ndb_ingester *ingester)
}

static int ndb_ingester_queue_event(struct ndb_ingester *ingester,
char *json, int len)
char *json, unsigned len, unsigned client)
{
struct ndb_ingester_msg msg;
msg.type = NDB_INGEST_EVENT;

msg.event.json = json;
msg.event.len = len;
msg.event.client = client;

return threadpool_dispatch(&ingester->tp, &msg);
}
Expand Down Expand Up @@ -1431,7 +1471,7 @@ static int ndb_run_migrations(struct ndb *ndb)
latest_version = sizeof(MIGRATIONS) / sizeof(MIGRATIONS[0]);

if ((version = ndb_db_version(ndb)) == -1) {
fprintf(stderr, "run_migrations: no version found, assuming new db\n");
ndb_debug("run_migrations: no version found, assuming new db\n");
version = latest_version;

// no version found. fresh db?
Expand All @@ -1442,11 +1482,11 @@ static int ndb_run_migrations(struct ndb *ndb)

return 1;
} else {
fprintf(stderr, "ndb: version %" PRIu64 " found\n", version);
ndb_debug("ndb: version %" PRIu64 " found\n", version);
}

if (version < latest_version)
fprintf(stderr, "nostrdb: migrating v%d -> v%d\n",
ndb_debug("nostrdb: migrating v%d -> v%d\n",
(int)version, (int)latest_version);

for (i = version; i < latest_version; i++) {
Expand Down Expand Up @@ -1516,7 +1556,29 @@ void ndb_destroy(struct ndb *ndb)
free(ndb);
}

// Process a nostr event, ie: ["EVENT", "subid", {"content":"..."}...]
// Process a nostr event from a client
//
// ie: ["EVENT", {"content":"..."} ...]
//
// The client-sent variation of ndb_process_event
int ndb_process_client_event(struct ndb *ndb, const char *json, int len)
{
// Since we need to return as soon as possible, and we're not
// making any assumptions about the lifetime of the string, we
// definitely need to copy the json here. In the future once we
// have our thread that manages a websocket connection, we can
// avoid the copy and just use the buffer we get from that
// thread.
char *json_copy = strdupn(json, len);
if (json_copy == NULL)
return 0;

return ndb_ingester_queue_event(&ndb->ingester, json_copy, len, 1);
}

// Process anostr event from a relay,
//
// ie: ["EVENT", "subid", {"content":"..."}...]
//
// This function returns as soon as possible, first copying the passed
// json and then queueing it up for processing. Worker threads then take
Expand All @@ -1543,23 +1605,26 @@ int ndb_process_event(struct ndb *ndb, const char *json, int json_len)
if (json_copy == NULL)
return 0;

return ndb_ingester_queue_event(&ndb->ingester, json_copy, json_len);
return ndb_ingester_queue_event(&ndb->ingester, json_copy, json_len, 0);
}

int ndb_process_events(struct ndb *ndb, const char *ldjson, size_t json_len)

int _ndb_process_events(struct ndb *ndb, const char *ldjson, size_t json_len, int client)
{
const char *start, *end, *very_end;
start = ldjson;
end = start + json_len;
very_end = ldjson + json_len;
int (* process)(struct ndb *, const char *, int);
#if DEBUG
int processed = 0;
#endif
process = client ? ndb_process_client_event : ndb_process_event;

while ((end = fast_strchr(start, '\n', very_end - start))) {
//printf("processing '%.*s'\n", (int)(end-start), start);
if (!ndb_process_event(ndb, start, end - start)) {
ndb_debug("ndb_process_event failed\n");
if (!process(ndb, start, end - start)) {
ndb_debug("ndb_process_client_event failed\n");
return 0;
}
start = end + 1;
Expand All @@ -1573,6 +1638,16 @@ int ndb_process_events(struct ndb *ndb, const char *ldjson, size_t json_len)
return 1;
}

int ndb_process_client_events(struct ndb *ndb, const char *ldjson, size_t json_len)
{
return _ndb_process_events(ndb, ldjson, json_len, 1);
}

int ndb_process_events(struct ndb *ndb, const char *ldjson, size_t json_len)
{
return _ndb_process_events(ndb, ldjson, json_len, 0);
}

static inline int cursor_push_tag(struct cursor *cur, struct ndb_tag *tag)
{
return cursor_push_u16(cur, tag->count);
Expand Down Expand Up @@ -1678,6 +1753,13 @@ static inline int ndb_json_parser_parse(struct ndb_json_parser *p,
return 1;
}

static inline int toksize(jsmntok_t *tok)
{
return tok->end - tok->start;
}



static int cursor_push_unescaped_char(struct cursor *cur, char c1, char c2)
{
switch (c2) {
Expand Down Expand Up @@ -2074,11 +2156,6 @@ static inline int jsoneq(const char *json, jsmntok_t *tok, int tok_len,
return 0;
}

static inline int toksize(jsmntok_t *tok)
{
return tok->end - tok->start;
}

static int ndb_builder_finalize_tag(struct ndb_builder *builder,
union ndb_packed_str offset)
{
Expand Down Expand Up @@ -2227,6 +2304,37 @@ static int parse_unsigned_int(const char *start, int len, unsigned int *num)
return 1;
}

int ndb_client_event_from_json(const char *json, int len, struct ndb_fce *fce,
unsigned char *buf, int bufsize, struct ndb_id_cb *cb)
{
jsmntok_t *tok = NULL;
int tok_len, res;
struct ndb_json_parser parser;

ndb_json_parser_init(&parser, json, len, buf, bufsize);

if ((res = ndb_json_parser_parse(&parser, cb)) < 0)
return res;

if (parser.num_tokens <= 3 || parser.toks[0].type != JSMN_ARRAY)
return 0;

parser.i = 1;
tok = &parser.toks[parser.i++];
tok_len = toksize(tok);
if (tok->type != JSMN_STRING)
return 0;

if (tok_len == 5 && !memcmp("EVENT", json + tok->start, 5)) {
fce->evtype = NDB_FCE_EVENT;
struct ndb_event *ev = &fce->event;
return ndb_parse_json_note(&parser, &ev->note);
}

return 0;
}


int ndb_ws_event_from_json(const char *json, int len, struct ndb_tce *tce,
unsigned char *buf, int bufsize,
struct ndb_id_cb *cb)
Expand All @@ -2239,22 +2347,12 @@ int ndb_ws_event_from_json(const char *json, int len, struct ndb_tce *tce,
tce->subid = "";

ndb_json_parser_init(&parser, json, len, buf, bufsize);

if ((res = ndb_json_parser_parse(&parser, cb)) < 0)
return res;

if (parser.num_tokens < 3 || parser.toks[0].type != JSMN_ARRAY) {
/*
tok = &parser.toks[parser.json_parser.toknext-1];
ndb_debug("failing at not enough takens (%d) or != JSMN_ARRAY @ '%.*s', '%.*s'\n",
parser.num_tokens, 10, json + parser.json_parser.pos,
toksize(tok), json + tok->start);
tok = &parser.toks[parser.json_parser.toknext-2];
ndb_debug("failing at not enough takens (%d) or != JSMN_ARRAY @ '%.*s', '%.*s'\n",
parser.num_tokens, 10, json + parser.json_parser.pos,
toksize(tok), json + tok->start);
*/
if (parser.num_tokens < 3 || parser.toks[0].type != JSMN_ARRAY)
return 0;
}

parser.i = 1;
tok = &parser.toks[parser.i++];
Expand Down
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