nostrdb

an unfairly fast embedded nostr database backed by lmdb
git clone git://jb55.com/nostrdb
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ndb.c (9123B)


      1 
      2 
      3 #include "nostrdb.h"
      4 #include "lmdb.h"
      5 #include "print_util.h"
      6 #include "hex.h"
      7 #include <time.h>
      8 #include <stdio.h>
      9 #include <stdlib.h>
     10 #include <sys/stat.h>
     11 #include <sys/mman.h>
     12 #include <unistd.h>
     13 #include <fcntl.h>
     14 
     15 static int usage()
     16 {
     17 	printf("usage: ndb [--skip-verification] [-d db_dir] <command>\n\n");
     18 	printf("commands\n\n");
     19 	printf("	stat\n");
     20 	printf("	query [-k 42] [-k 1337] [--search term] [-l 42] [-e abcdef...] [-a abcdef... -a bcdef...]\n");
     21 	printf("	profile <pubkey>\n");
     22 	printf("	print-search-keys\n");
     23 	printf("	print-kind-keys\n");
     24 	printf("	print-tag-keys\n");
     25 	printf("	import <line-delimited json file>\n\n");
     26 	printf("settings\n\n");
     27 	printf("	--skip-verification  skip signature validation\n");
     28 	printf("	-d <db_dir>          set database directory\n");
     29 	return 1;
     30 }
     31 
     32 
     33 static int map_file(const char *filename, unsigned char **p, size_t *flen)
     34 {
     35 	struct stat st;
     36 	int des;
     37 	stat(filename, &st);
     38 	*flen = st.st_size;
     39 
     40 	des = open(filename, O_RDONLY);
     41 
     42 	*p = mmap(NULL, *flen, PROT_READ, MAP_PRIVATE, des, 0);
     43 	close(des);
     44 
     45 	return *p != MAP_FAILED;
     46 }
     47 
     48 static inline void print_stat_counts(struct ndb_stat_counts *counts)
     49 {
     50 	printf("%zu\t%zu\t%zu\t%zu\n",
     51 	       counts->count,
     52 	       counts->key_size,
     53 	       counts->value_size,
     54 	       counts->key_size + counts->value_size);
     55 }
     56 
     57 static void print_stats(struct ndb_stat *stat)
     58 {
     59 	int i;
     60 	const char *name;
     61 	struct ndb_stat_counts *c;
     62 
     63 	struct ndb_stat_counts total;
     64 	ndb_stat_counts_init(&total);
     65 
     66 	printf("name\tcount\tkey_bytes\tvalue_bytes\ttotal_bytes\n");
     67 	printf("---\ndbs\n---\n");
     68 	for (i = 0; i < NDB_DBS; i++) {
     69 		name = ndb_db_name(i);
     70 
     71 		total.count += stat->dbs[i].count;
     72 		total.key_size += stat->dbs[i].key_size;
     73 		total.value_size += stat->dbs[i].value_size;
     74 
     75 		printf("%s\t", name);
     76 		print_stat_counts(&stat->dbs[i]);
     77 	}
     78 
     79 	printf("total\t");
     80 	print_stat_counts(&total);
     81 
     82 	printf("-----\nkinds\n-----\n");
     83 	for (i = 0; i < NDB_CKIND_COUNT; i++) {
     84 		c = &stat->common_kinds[i];
     85 		if (c->count == 0)
     86 			continue;
     87 
     88 		printf("%s\t", ndb_kind_name(i));
     89 		print_stat_counts(c);
     90 	}
     91 
     92 	if (stat->other_kinds.count != 0) {
     93 		printf("other\t");
     94 		print_stat_counts(&stat->other_kinds);
     95 	}
     96 }
     97 
     98 int ndb_print_search_keys(struct ndb_txn *txn);
     99 int ndb_print_kind_keys(struct ndb_txn *txn);
    100 int ndb_print_tag_index(struct ndb_txn *txn);
    101 
    102 static void print_note(struct ndb_note *note)
    103 {
    104 	static char buf[5000000];
    105 	if (!ndb_note_json(note, buf, sizeof(buf))) {
    106 		print_hex_stream(stderr, ndb_note_id(note), 32);
    107 		fprintf(stderr, " is too big to print! >5mb");
    108 		return;
    109 	}
    110 	puts(buf);
    111 }
    112 
    113 static void ndb_print_text_search_result(struct ndb_txn *txn,
    114 		struct ndb_text_search_result *r)
    115 {
    116 	size_t len;
    117 	struct ndb_note *note;
    118 
    119 	//ndb_print_text_search_key(&r->key);
    120 
    121 	if (!(note = ndb_get_note_by_key(txn, r->key.note_id, &len))) {
    122 		fprintf(stderr,": note not found");
    123 		return;
    124 	}
    125 
    126 	//fprintf(stderr,"\n");
    127 	print_note(note);
    128 }
    129 
    130 
    131 int main(int argc, char *argv[])
    132 {
    133 	struct ndb *ndb;
    134 	int i, flags, limit, count, current_field, len, res;
    135 	long nanos;
    136 	struct ndb_stat stat;
    137 	struct ndb_txn txn;
    138 	const char *dir;
    139 	unsigned char *data;
    140 	size_t data_len;
    141 	struct ndb_config config;
    142 	struct timespec t1, t2;
    143 	unsigned char tmp_id[32];
    144 
    145 	// profiles
    146 	const char *pk_str;
    147 	void *ptr;
    148 	size_t profile_len;
    149 	uint64_t key;
    150 
    151 	res = 0;
    152 	ndb_default_config(&config);
    153 	ndb_config_set_mapsize(&config, 1024ULL * 1024ULL * 1024ULL * 1024ULL /* 1 TiB */);
    154 
    155 	if (argc < 2) {
    156 		return usage();
    157 	}
    158 
    159 	dir = ".";
    160 	flags = 0;
    161 	for (i = 0; i < 2; i++)
    162 	{
    163 		if (!strcmp(argv[1], "-d") && argv[2]) {
    164 			dir = argv[2];
    165 			argv += 2;
    166 			argc -= 2;
    167 		} else if (!strcmp(argv[1], "--skip-verification")) {
    168 			flags = NDB_FLAG_SKIP_NOTE_VERIFY;
    169 			argv += 1;
    170 			argc -= 1;
    171 		}
    172 	}
    173 
    174 	ndb_config_set_flags(&config, flags);
    175 
    176 	fprintf(stderr, "using db '%s'\n", dir);
    177 
    178 	if (!ndb_init(&ndb, dir, &config)) {
    179 		return 2;
    180 	}
    181 
    182 	if (argc == 2 && !strcmp(argv[1], "stat")) {
    183 		if (!ndb_stat(ndb, &stat)) {
    184 			res = 3;
    185 			goto cleanup;
    186 		}
    187 
    188 		print_stats(&stat);
    189 	} else if (argc >= 3 && !strcmp(argv[1], "query")) {
    190 		struct ndb_filter filter, *f = &filter;
    191 		ndb_filter_init(f);
    192 
    193 		argv += 2;
    194 		argc -= 2;
    195 		current_field = 0;
    196 
    197 		for (i = 0; argc && i < 1000; i++) {
    198 			if (!strcmp(argv[0], "-k")) {
    199 				if (current_field != NDB_FILTER_KINDS) {
    200 					ndb_filter_end_field(f);
    201 					ndb_filter_start_field(f, NDB_FILTER_KINDS);
    202 				}
    203 				current_field = NDB_FILTER_KINDS;
    204 				ndb_filter_add_int_element(f, atoll(argv[1]));
    205 				argv += 2;
    206 				argc -= 2;
    207 			} else if (!strcmp(argv[0], "-l") || !strcmp(argv[0], "--limit")) {
    208 				limit = atol(argv[1]);
    209 				if (current_field) {
    210 					ndb_filter_end_field(f);
    211 					current_field = 0;
    212 				}
    213 				ndb_filter_start_field(f, NDB_FILTER_LIMIT);
    214 				current_field = NDB_FILTER_LIMIT;
    215 				ndb_filter_add_int_element(f, limit);
    216 				ndb_filter_end_field(f);
    217 				argv += 2;
    218 				argc -= 2;
    219 			} else if (!strcmp(argv[0], "--since") || !strcmp(argv[0], "-s")) {
    220 				if (current_field) {
    221 					ndb_filter_end_field(f);
    222 					current_field = 0;
    223 				}
    224 				ndb_filter_start_field(f, NDB_FILTER_SINCE);
    225 				ndb_filter_add_int_element(f, atoll(argv[1]));
    226 				ndb_filter_end_field(f);
    227 				argv += 2;
    228 				argc -= 2;
    229 			} else if (!strcmp(argv[0], "--until") || !strcmp(argv[0], "-u")) {
    230 				if (current_field) {
    231 					ndb_filter_end_field(f);
    232 					current_field = 0;
    233 				}
    234 				ndb_filter_start_field(f, NDB_FILTER_UNTIL);
    235 				ndb_filter_add_int_element(f, atoll(argv[1]));
    236 				ndb_filter_end_field(f);
    237 				argv += 2;
    238 				argc -= 2;
    239 			} else if (!strcmp(argv[0], "-t")) {
    240 				if (current_field) {
    241 					ndb_filter_end_field(f);
    242 					current_field = 0;
    243 				}
    244 				ndb_filter_start_tag_field(f, 't');
    245 				ndb_filter_add_str_element(f, argv[1]);
    246 				ndb_filter_end_field(f);
    247 				argv += 2;
    248 				argc -= 2;
    249 			} else if (!strcmp(argv[0], "--search") || !strcmp(argv[0], "-S")) {
    250 				if (current_field) {
    251 					ndb_filter_end_field(f);
    252 					current_field = 0;
    253 				}
    254 				ndb_filter_start_field(f, NDB_FILTER_SEARCH);
    255 				ndb_filter_add_str_element(f, argv[1]);
    256 				ndb_filter_end_field(f);
    257 				argv += 2;
    258 				argc -= 2;
    259 			} else if (!strcmp(argv[0], "-e")) {
    260 				if (current_field != 'e') {
    261 					if (!ndb_filter_start_tag_field(f, 'e')) {
    262 						fprintf(stderr, "field already started\n");
    263 						res = 44;
    264 						goto cleanup;
    265 					}
    266 				}
    267 				current_field = 'e';
    268 
    269 				if (len != 64 || !hex_decode(argv[1], 64, tmp_id, sizeof(tmp_id))) {
    270 					fprintf(stderr, "invalid hex id\n");
    271 					res = 42;
    272 					goto cleanup;
    273 				}
    274 
    275 				if (!ndb_filter_add_id_element(f, tmp_id)) {
    276 					fprintf(stderr, "too many event ids\n");
    277 					res = 43;
    278 					goto cleanup;
    279 				}
    280 
    281 				argv += 2;
    282 				argc -= 2;
    283 			} else if (!strcmp(argv[0], "-a")) {
    284 				if (current_field != NDB_FILTER_AUTHORS)
    285 					ndb_filter_start_field(f, NDB_FILTER_AUTHORS);
    286 				current_field = NDB_FILTER_AUTHORS;
    287 
    288 				len = strlen(argv[1]);
    289 				if (len != 64 || !hex_decode(argv[1], 64, tmp_id, sizeof(tmp_id))) {
    290 					fprintf(stderr, "invalid hex pubkey\n");
    291 					res = 42;
    292 					goto cleanup;
    293 				}
    294 
    295 				if (!ndb_filter_add_id_element(f, tmp_id)) {
    296 					fprintf(stderr, "too many author pubkeys\n");
    297 					res = 43;
    298 					goto cleanup;
    299 				}
    300 
    301 				argv += 2;
    302 				argc -= 2;
    303 			}
    304 		}
    305 
    306 		if (current_field) {
    307 			ndb_filter_end_field(f);
    308 			current_field = 0;
    309 		}
    310 
    311 		struct ndb_query_result results[10000];
    312 		ndb_begin_query(ndb, &txn);
    313 
    314 		clock_gettime(CLOCK_MONOTONIC, &t1);
    315 		if (!ndb_query(&txn, f, 1, results, 10000, &count)) {
    316 			fprintf(stderr, "query error\n");
    317 		}
    318 		clock_gettime(CLOCK_MONOTONIC, &t2);
    319 
    320 		nanos = (t2.tv_sec - t1.tv_sec) * (long)1e9 + (t2.tv_nsec - t1.tv_nsec);
    321 
    322 		fprintf(stderr, "%d results in %f ms\n", count, nanos/1000000.0);
    323 		for (i = 0; i < count; i++) {
    324 			print_note(results[i].note);
    325 		}
    326 
    327 		ndb_end_query(&txn);
    328 
    329 	} else if (argc == 3 && !strcmp(argv[1], "import")) {
    330 		if (!strcmp(argv[2], "-")) {
    331 			ndb_process_events_stream(ndb, stdin);
    332 		} else {
    333 			map_file(argv[2], &data, &data_len);
    334 			ndb_process_events(ndb, (const char *)data, data_len);
    335 			//ndb_process_client_events(ndb, (const char *)data, data_len);
    336 		}
    337 	} else if (argc == 2 && !strcmp(argv[1], "print-search-keys")) {
    338 		ndb_begin_query(ndb, &txn);
    339 		ndb_print_search_keys(&txn);
    340 		ndb_end_query(&txn);
    341 	} else if (argc == 2 && !strcmp(argv[1], "print-kind-keys")) {
    342 		ndb_begin_query(ndb, &txn);
    343 		ndb_print_kind_keys(&txn);
    344 		ndb_end_query(&txn);
    345 	} else if (argc == 2 && !strcmp(argv[1], "print-tag-keys")) {
    346 		ndb_begin_query(ndb, &txn);
    347 		ndb_print_tag_index(&txn);
    348 		ndb_end_query(&txn);
    349 	}  else if (argc == 3 && !strcmp(argv[1], "profile")) {
    350 		pk_str = argv[2];
    351 		if (!hex_decode(pk_str, strlen(pk_str), tmp_id, sizeof(tmp_id))) {
    352 			fprintf(stderr, "failed to decode hex pubkey '%s'\n", pk_str);
    353 			res = 88;
    354 			goto cleanup;
    355 		}
    356 		ndb_begin_query(ndb, &txn);
    357 		if (!(ptr = ndb_get_profile_by_pubkey(&txn, tmp_id, &profile_len, &key))) {
    358 			ndb_end_query(&txn);
    359 			fprintf(stderr, "profile not found\n");
    360 			res = 89;
    361 			goto cleanup;
    362 		}
    363 		ndb_end_query(&txn);
    364 		print_hex(ptr, profile_len);
    365 		printf("\n");
    366 	} else {
    367 		ndb_destroy(ndb);
    368 		return usage();
    369 	}
    370 
    371 cleanup:
    372 	ndb_destroy(ndb);
    373 	return res;
    374 }