int fs_metadata_set(fs_metadata *m, const char *key, const char *val)
{
for (int e=0; e < m->length; e++) {
if (!strcmp(m->entries[e].key, key)) {
g_free(m->entries[e].val);
m->entries[e].val = g_strdup(val);
return 0;
}
}
return fs_metadata_add(m, key, val);
}
static void parse_stmt(void *user_data, raptor_statement *statement)
{
fs_metadata *m = (fs_metadata *)user_data;
char *pred = (char *)raptor_uri_as_string(statement->predicate->value.uri);
char *obj = NULL;
if (statement->object->type == RAPTOR_TERM_TYPE_LITERAL) {
obj = (char *)statement->object->value.literal.string;
} else {
obj = (char *)raptor_uri_as_string(statement->object->value.uri);
}
fs_metadata_add(m, pred, obj);
}
void setup_metadata(kbconfig *config)
{
LOG(1, "Writing metadata.\n");
fs_metadata *md = fs_metadata_open(config->name);
fs_metadata_clear(md);
fs_metadata_set(md, FS_MD_NAME, config->name);
fs_metadata_set(md, FS_MD_HASHFUNC, FS_HASH);
fs_metadata_set(md, FS_MD_STORE, "native");
fs_metadata_set(md, FS_MD_MODEL_DATA, "true");
if (config->model_files) {
fs_metadata_set(md, FS_MD_MODEL_FILES, "true");
} else {
fs_metadata_set(md, FS_MD_MODEL_FILES, "false");
}
fs_metadata_set(md, FS_MD_CODE_VERSION, GIT_REV);
for (int seg = 0; seg < config->segments; seg++) {
if (primary_segment(config, seg))
fs_metadata_add_int(md, FS_MD_SEGMENT_P, seg);
if (mirror_segment(config, seg))
fs_metadata_add_int(md, FS_MD_SEGMENT_M, seg);
}
/* Generate store UUID for skolemisation */
#if defined(USE_LINUX_UUID)
uuid_t uu;
uuid_string_t uus;
uuid_generate(uu);
uuid_unparse(uu, uus);
#elif defined(USE_BSD_UUID)
uuid_t uu;
char *uus = NULL;
int status = -1;
uuid_create(&uu, &status);
if (status) { fs_error(LOG_ERR, "bad return from uuid_create"); exit(1); }
uuid_to_string(&uu, &uus, &status);
if (status || uus == NULL) { fs_error(LOG_ERR, "bad return from uuid_to_string"); exit(1); }
#elif defined(USE_OSSP_UUID)
uuid_t *uu = NULL;
char *uus = NULL;
if (uuid_create(&uu)) { fs_error(LOG_ERR, "bad return from uuid_create"); exit(1); }
if (uuid_make(uu, UUID_MAKE_V1)) { fs_error(LOG_ERR, "bad return from uuid_make"); exit(1); }
if (uuid_export(uu, UUID_FMT_STR, &uus, NULL) || uus == NULL) { fs_error(LOG_ERR, "bad return from uuid_export"); exit(1); }
#endif
fs_metadata_add(md, FS_MD_UUID, uus);
#if defined(USE_OSSP_UUID)
uuid_destroy(uu);
#endif
unsigned char stage1[20], stage2[16];
char hash[33] = "none";
int now = 0;
if (config->password) {
md5_state_t md5;
char *pw = g_strdup_printf("%s:%s", config->name, config->password);
/* stage1 will contain the 4 byte Unix time_t value as a salt ... */
now = time(NULL);
memcpy(stage1, &now, sizeof(now));
/* ... followed by the on-wire 16 byte MD5 auth string */
md5_init(&md5);
md5_append(&md5, (md5_byte_t *) pw, strlen(pw));
md5_finish(&md5, stage1 + 4);
/* now use MD5 on all 20 bytes and store both the salt and the hash */
md5_init(&md5);
md5_append(&md5, stage1, sizeof(stage1));
md5_finish(&md5, stage2);
sprintf(hash, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
stage2[0], stage2[1], stage2[2], stage2[3], stage2[4], stage2[5],
stage2[6], stage2[7], stage2[8], stage2[9], stage2[10], stage2[11],
stage2[12], stage2[13], stage2[14], stage2[15]);
g_free(pw);
}
fs_metadata_add_int(md, FS_MD_VERSION, FS_CURRENT_TABLE_VERSION);
fs_metadata_add_int(md, FS_MD_SEGMENTS, config->segments);
fs_metadata_add_int(md, FS_MD_SALT, now);
fs_metadata_add_int(md, FS_MD_BNODE, 1);
fs_metadata_add(md, FS_MD_HASH, hash);
fs_metadata_flush(md);
fs_metadata_close(md);
fs_error(LOG_INFO, "created RDF metadata for KB %s", config->name);
}
