static void
test_bson_copy_to_excluding (void)
{
bson_iter_t iter;
bson_bool_t r;
bson_t b;
bson_t c;
int i;
bson_init(&b);
bson_append_int32(&b, "a", 1, 1);
bson_append_int32(&b, "b", 1, 2);
bson_copy_to_excluding(&b, &c, "b", NULL);
r = bson_iter_init_find(&iter, &c, "a");
assert(r);
r = bson_iter_init_find(&iter, &c, "b");
assert(!r);
i = bson_count_keys(&b);
assert_cmpint(i, ==, 2);
i = bson_count_keys(&c);
assert_cmpint(i, ==, 1);
bson_destroy(&b);
bson_destroy(&c);
}
/*
* If error is not set, set code from first document in array like
* [{"code": 64, "errmsg": "duplicate"}, ...]. Format the error message
* from all errors in array.
*/
static void
_set_error_from_response (bson_t *bson_array,
mongoc_error_domain_t domain,
const char *error_type,
bson_error_t *error /* OUT */)
{
bson_iter_t array_iter;
bson_iter_t doc_iter;
bson_string_t *compound_err;
const char *errmsg = NULL;
int32_t code = 0;
uint32_t n_keys, i;
compound_err = bson_string_new (NULL);
n_keys = bson_count_keys (bson_array);
if (n_keys > 1) {
bson_string_append_printf (
compound_err, "Multiple %s errors: ", error_type);
}
if (!bson_empty0 (bson_array) && bson_iter_init (&array_iter, bson_array)) {
/* get first code and all error messages */
i = 0;
while (bson_iter_next (&array_iter)) {
if (BSON_ITER_HOLDS_DOCUMENT (&array_iter) &&
bson_iter_recurse (&array_iter, &doc_iter)) {
/* parse doc, which is like {"code": 64, "errmsg": "duplicate"} */
while (bson_iter_next (&doc_iter)) {
/* use the first error code we find */
if (BSON_ITER_IS_KEY (&doc_iter, "code") && code == 0) {
code = bson_iter_int32 (&doc_iter);
} else if (BSON_ITER_IS_KEY (&doc_iter, "errmsg")) {
errmsg = bson_iter_utf8 (&doc_iter, NULL);
/* build message like 'Multiple write errors: "foo", "bar"' */
if (n_keys > 1) {
bson_string_append_printf (compound_err, "\"%s\"", errmsg);
if (i < n_keys - 1) {
bson_string_append (compound_err, ", ");
}
} else {
/* single error message */
bson_string_append (compound_err, errmsg);
}
}
}
i++;
}
}
if (code && compound_err->len) {
bson_set_error (
error, domain, (uint32_t) code, "%s", compound_err->str);
}
}
bson_string_free (compound_err, true);
}
static int
_score_tags (const bson_t *read_tags,
const bson_t *node_tags)
{
uint32_t len;
bson_iter_t iter;
const char *key;
const char *str;
int count;
int i;
bson_return_val_if_fail(read_tags, -1);
bson_return_val_if_fail(node_tags, -1);
count = bson_count_keys(read_tags);
if (!bson_empty(read_tags) && bson_iter_init(&iter, read_tags)) {
for (i = count; bson_iter_next(&iter); i--) {
if (BSON_ITER_HOLDS_UTF8(&iter)) {
key = bson_iter_key(&iter);
str = bson_iter_utf8(&iter, &len);
if (_contains_tag(node_tags, key, str, len)) {
return count;
}
}
}
return -1;
}
return 0;
}
static void
mongoc_uri_parse_read_prefs (mongoc_uri_t *uri,
const char *str)
{
const char *end_keyval;
const char *end_key;
bson_t b;
char *keyval;
char *key;
char keystr[32];
int i;
bson_init(&b);
again:
if ((keyval = scan_to_unichar(str, ',', &end_keyval))) {
if ((key = scan_to_unichar(keyval, ':', &end_key))) {
bson_append_utf8(&b, key, -1, end_key + 1, -1);
bson_free(key);
}
bson_free(keyval);
str = end_keyval + 1;
goto again;
} else {
if ((key = scan_to_unichar(str, ':', &end_key))) {
bson_append_utf8(&b, key, -1, end_key + 1, -1);
bson_free(key);
}
}
i = bson_count_keys(&uri->read_prefs);
snprintf(keystr, sizeof keystr, "%u", i);
bson_append_document(&uri->read_prefs, keystr, -1, &b);
bson_destroy(&b);
}
stdx::optional<bsoncxx::document::view> read_preference::tags() const {
const bson_t* bson_tags = libmongoc::read_prefs_get_tags(_impl->read_preference_t);
if (bson_count_keys(bson_tags))
return bsoncxx::document::view(bson_get_data(bson_tags), bson_tags->len);
return stdx::optional<bsoncxx::document::view>{};
}
static int
_score_tags (const bson_t *read_tags,
const bson_t *node_tags)
{
uint32_t len;
bson_iter_t iter;
bson_iter_t sub_iter;
const char *key;
const char *str;
int count;
bool node_matches_set;
bson_return_val_if_fail(read_tags, -1);
bson_return_val_if_fail(node_tags, -1);
count = bson_count_keys(read_tags);
/* Execute this block if read tags were provided, else bail and return 0 (all nodes equal) */
if (!bson_empty(read_tags) && bson_iter_init(&iter, read_tags)) {
/*
* Iterate over array of read tag sets provided (each element is a tag set)
* Tag sets are provided in order of preference so return the count of the
* first set that matches the node or -1 if no set matched the node.
*/
while (count && bson_iter_next(&iter)) {
if (BSON_ITER_HOLDS_DOCUMENT(&iter) && bson_iter_recurse(&iter, &sub_iter)) {
node_matches_set = true;
/* Iterate over the key/value pairs (tags) in the current set */
while (bson_iter_next(&sub_iter) && BSON_ITER_HOLDS_UTF8(&sub_iter)) {
key = bson_iter_key(&sub_iter);
str = bson_iter_utf8(&sub_iter, &len);
/* If any of the tags do not match, this node cannot satisfy this tag set. */
if (!_contains_tag(node_tags, key, str, len)) {
node_matches_set = false;
break;
}
}
/* This set matched, return the count as the score */
if (node_matches_set) {
return count;
}
/* Decrement the score and try to match the next set. */
count--;
}
}
return -1;
}
return 0;
}
int32_t
_mongoc_write_result_merge_arrays (uint32_t offset,
mongoc_write_result_t *result, /* IN */
bson_t *dest, /* IN */
bson_iter_t *iter) /* IN */
{
const bson_value_t *value;
bson_iter_t ar;
bson_iter_t citer;
int32_t idx;
int32_t count = 0;
int32_t aridx;
bson_t child;
const char *keyptr = NULL;
char key[12];
int len;
ENTRY;
BSON_ASSERT (result);
BSON_ASSERT (dest);
BSON_ASSERT (iter);
BSON_ASSERT (BSON_ITER_HOLDS_ARRAY (iter));
aridx = bson_count_keys (dest);
if (bson_iter_recurse (iter, &ar)) {
while (bson_iter_next (&ar)) {
if (BSON_ITER_HOLDS_DOCUMENT (&ar) &&
bson_iter_recurse (&ar, &citer)) {
len =
(int) bson_uint32_to_string (aridx++, &keyptr, key, sizeof key);
bson_append_document_begin (dest, keyptr, len, &child);
while (bson_iter_next (&citer)) {
if (BSON_ITER_IS_KEY (&citer, "index")) {
idx = bson_iter_int32 (&citer) + offset;
BSON_APPEND_INT32 (&child, "index", idx);
} else {
value = bson_iter_value (&citer);
BSON_APPEND_VALUE (&child, bson_iter_key (&citer), value);
}
}
bson_append_document_end (dest, &child);
count++;
}
}
}
RETURN (count);
}
void
mongoc_read_prefs_add_tag (mongoc_read_prefs_t *read_prefs,
const bson_t *tag)
{
bson_t empty = BSON_INITIALIZER;
char str[16];
int key;
BSON_ASSERT (read_prefs);
key = bson_count_keys (&read_prefs->tags);
bson_snprintf (str, sizeof str, "%d", key);
if (tag) {
bson_append_document (&read_prefs->tags, str, -1, tag);
} else {
bson_append_document (&read_prefs->tags, str, -1, &empty);
}
}
/*!
* \brief Get and convert columns from a result
*
* Get and convert columns from a result, fills the result structure
* with data from the database.
* \param _h database connection
* \param _r database result set
* \return 0 on success, negative on failure
*/
int db_mongodb_get_columns(const db1_con_t* _h, db1_res_t* _r)
{
int col;
db_mongodb_result_t *mgres;
bson_iter_t riter;
bson_iter_t citer;
bson_t *cdoc;
const char *colname;
bson_type_t coltype;
if ((!_h) || (!_r)) {
LM_ERR("invalid parameter\n");
return -1;
}
mgres = (db_mongodb_result_t*)RES_PTR(_r);
if(!mgres->rdoc) {
mgres->nrcols = 0;
return 0;
}
if(mgres->nrcols==0 || mgres->colsdoc==NULL) {
mgres->nrcols = (int)bson_count_keys(mgres->rdoc);
if(mgres->nrcols==0) {
LM_ERR("no keys in bson document\n");
return -1;
}
cdoc = mgres->rdoc;
} else {
cdoc = mgres->colsdoc;
}
RES_COL_N(_r) = mgres->nrcols;
if (!RES_COL_N(_r)) {
LM_ERR("no columns returned from the query\n");
return -2;
} else {
LM_DBG("%d columns returned from the query\n", RES_COL_N(_r));
}
if (db_allocate_columns(_r, RES_COL_N(_r)) != 0) {
RES_COL_N(_r) = 0;
LM_ERR("could not allocate columns\n");
return -3;
}
if (!bson_iter_init (&citer, cdoc)) {
LM_ERR("failed to initialize columns iterator\n");
return -3;
}
if(mgres->colsdoc) {
if (!bson_iter_init (&riter, mgres->rdoc)) {
LM_ERR("failed to initialize result iterator\n");
return -3;
}
}
col = 0;
while (bson_iter_next (&citer)) {
if(col >= RES_COL_N(_r)) {
LM_ERR("invalid number of columns (%d/%d)\n", col, RES_COL_N(_r));
return -4;
}
colname = bson_iter_key (&citer);
LM_DBG("Found a field[%d] named: %s\n", col, colname);
if(mgres->colsdoc) {
if(!bson_iter_find(&riter, colname)) {
LM_ERR("field [%s] not found in result iterator\n",
colname);
return -4;
}
coltype = bson_iter_type(&riter);
} else {
coltype = bson_iter_type(&citer);
}
RES_NAMES(_r)[col] = (str*)pkg_malloc(sizeof(str));
if (! RES_NAMES(_r)[col]) {
LM_ERR("no private memory left\n");
db_free_columns(_r);
return -4;
}
LM_DBG("allocate %lu bytes for RES_NAMES[%d] at %p\n",
(unsigned long)sizeof(str), col, RES_NAMES(_r)[col]);
/* pointer linked here is part of the result structure */
RES_NAMES(_r)[col]->s = (char*)colname;
RES_NAMES(_r)[col]->len = strlen(colname);
switch(coltype) {
case BSON_TYPE_BOOL:
case BSON_TYPE_INT32:
case BSON_TYPE_TIMESTAMP:
LM_DBG("use DB1_INT result type\n");
RES_TYPES(_r)[col] = DB1_INT;
break;
case BSON_TYPE_INT64:
LM_DBG("use DB1_BIGINT result type\n");
RES_TYPES(_r)[col] = DB1_BIGINT;
break;
case BSON_TYPE_DOUBLE:
LM_DBG("use DB1_DOUBLE result type\n");
RES_TYPES(_r)[col] = DB1_DOUBLE;
break;
case BSON_TYPE_DATE_TIME:
LM_DBG("use DB1_DATETIME result type\n");
RES_TYPES(_r)[col] = DB1_DATETIME;
break;
case BSON_TYPE_BINARY:
LM_DBG("use DB1_BLOB result type\n");
RES_TYPES(_r)[col] = DB1_BLOB;
break;
case BSON_TYPE_UTF8:
LM_DBG("use DB1_STRING result type\n");
RES_TYPES(_r)[col] = DB1_STRING;
break;
#if 0
case BSON_TYPE_EOD:
case BSON_TYPE_DOCUMENT:
case BSON_TYPE_ARRAY:
case BSON_TYPE_UNDEFINED:
case BSON_TYPE_OID:
case BSON_TYPE_NULL:
case BSON_TYPE_REGEX:
case BSON_TYPE_DBPOINTER:
case BSON_TYPE_CODE:
case BSON_TYPE_SYMBOL:
case BSON_TYPE_CODEWSCOPE:
case BSON_TYPE_MAXKEY:
case BSON_TYPE_MINKEY:
#endif
default:
LM_INFO("unhandled data type column (%.*s) type id (%d), "
"use DB1_STRING as default\n", RES_NAMES(_r)[col]->len,
RES_NAMES(_r)[col]->s, coltype);
RES_TYPES(_r)[col] = DB1_STRING;
break;
}
LM_DBG("RES_NAMES(%p)[%d]=[%.*s] (%d)\n", RES_NAMES(_r)[col], col,
RES_NAMES(_r)[col]->len, RES_NAMES(_r)[col]->s, coltype);
col++;
}
return 0;
}
size_t
mongoc_server_description_filter_eligible (
mongoc_server_description_t **descriptions,
size_t description_len,
const mongoc_read_prefs_t *read_prefs)
{
const bson_t *rp_tags;
bson_iter_t rp_tagset_iter;
bson_iter_t rp_iter;
bson_iter_t sd_iter;
uint32_t rp_len;
uint32_t sd_len;
const char *rp_val;
const char *sd_val;
bool *sd_matched = NULL;
size_t found;
size_t i;
size_t rval = 0;
if (!read_prefs) {
/* NULL read_prefs is PRIMARY, no tags to filter by */
return description_len;
}
rp_tags = mongoc_read_prefs_get_tags (read_prefs);
if (bson_count_keys (rp_tags) == 0) {
return description_len;
}
sd_matched = (bool *) bson_malloc0 (sizeof(bool) * description_len);
bson_iter_init (&rp_tagset_iter, rp_tags);
/* for each read preference tagset */
while (bson_iter_next (&rp_tagset_iter)) {
found = description_len;
for (i = 0; i < description_len; i++) {
sd_matched[i] = true;
bson_iter_recurse (&rp_tagset_iter, &rp_iter);
while (bson_iter_next (&rp_iter)) {
/* TODO: can we have non-utf8 tags? */
rp_val = bson_iter_utf8 (&rp_iter, &rp_len);
if (bson_iter_init_find (&sd_iter, &descriptions[i]->tags, bson_iter_key (&rp_iter))) {
/* If the server description has that key */
sd_val = bson_iter_utf8 (&sd_iter, &sd_len);
if (! (sd_len == rp_len && (0 == memcmp(rp_val, sd_val, rp_len)))) {
/* If the key value doesn't match, no match */
sd_matched[i] = false;
found--;
}
} else {
/* If the server description doesn't have that key, no match */
sd_matched[i] = false;
found--;
break;
}
}
}
if (found) {
for (i = 0; i < description_len; i++) {
if (! sd_matched[i]) {
descriptions[i] = NULL;
}
}
rval = found;
goto CLEANUP;
}
}
for (i = 0; i < description_len; i++) {
if (! sd_matched[i]) {
descriptions[i] = NULL;
}
}
CLEANUP:
bson_free (sd_matched);
return rval;
}
