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/* Copyright (c) 2016-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "array.h"
#include "ldap-private.h"
#include <stdio.h>
#include <sys/time.h>
struct ldap_search_ctx {
const struct ldap_search_input *input;
struct ldap_result res;
};
static void
ldap_search_result_failure(struct ldap_op_queue_entry *req,
int ret, const char *error)
{
struct ldap_search_ctx *sctx = req->ctx;
sctx->res.openldap_ret = ret;
sctx->res.error_string = error;
req->result_callback(&sctx->res, req->result_callback_ctx);
}
static void ldap_search_result_success(struct ldap_op_queue_entry *req)
{
struct ldap_search_ctx *sctx = req->ctx;
sctx->res.openldap_ret = LDAP_SUCCESS;
req->result_callback(&sctx->res, req->result_callback_ctx);
}
static int
ldap_search_callback(struct ldap_connection *conn,
struct ldap_op_queue_entry *req,
LDAPMessage *message, bool *finished_r)
{
struct ldap_search_ctx *sctx = req->ctx;
int msgtype = ldap_msgtype(message);
char *result_errmsg = NULL;
int ret, result_err;
if (msgtype != LDAP_RES_SEARCH_ENTRY &&
msgtype != LDAP_RES_SEARCH_RESULT) {
*finished_r = FALSE;
return LDAP_SUCCESS;
}
*finished_r = TRUE;
ret = ldap_parse_result(conn->conn, message, &result_err, NULL,
&result_errmsg, NULL, NULL, 0);
if (ret == LDAP_NO_RESULTS_RETURNED) {
/*ret = LDAP_SUCCESS;*/
} else if (ret != LDAP_SUCCESS) {
ldap_search_result_failure(req, ret, t_strdup_printf(
"ldap_parse_result() failed for search: %s", ldap_err2string(ret)));
return ret;
} else if (result_err != LDAP_SUCCESS) {
const struct ldap_search_input *input = &req->input.search;
const char *error = result_errmsg != NULL ?
result_errmsg : ldap_err2string(result_err);
ldap_search_result_failure(req, result_err, t_strdup_printf(
"ldap_search_ext(base=%s, scope=%d, filter=%s) failed: %s",
input->base_dn, input->scope, input->filter, error));
ldap_memfree(result_errmsg);
return result_err;
}
LDAPMessage *res = ldap_first_entry(conn->conn, message);
while(res != NULL) {
struct ldap_entry *obj = p_new(req->pool, struct ldap_entry, 1);
ldap_entry_init(obj, &sctx->res, message);
array_push_back(&sctx->res.entries, obj);
res = ldap_next_entry(conn->conn, res);
}
if (msgtype == LDAP_RES_SEARCH_RESULT) {
ldap_search_result_success(req);
return LDAP_SUCCESS;
}
*finished_r = FALSE;
return LDAP_SUCCESS;
}
static int
ldap_search_send(struct ldap_connection *conn, struct ldap_op_queue_entry *req,
const char **error_r)
{
const struct ldap_search_input *input = &req->input.search;
LDAPControl manageDSAIT = {
LDAP_CONTROL_MANAGEDSAIT, {0, 0}, 0
};
/* try to use ManageDSAIT if available */
LDAPControl *sctrls[] = {
&manageDSAIT,
NULL
};
struct timeval tv = {
.tv_sec = req->timeout_secs,
.tv_usec = 0
};
int ret = ldap_search_ext(conn->conn,
input->base_dn,
input->scope,
input->filter,
(char**)input->attributes,
0,
sctrls,
NULL,
&tv,
input->size_limit,
&req->msgid);
if (ret != LDAP_SUCCESS) {
*error_r = t_strdup_printf(
"ldap_search_ext(base=%s, scope=%d, filter=%s) failed: %s",
input->base_dn, input->scope, input->filter,
ldap_err2string(ret));
}
return ret;
}
void ldap_connection_search_start(struct ldap_connection *conn,
const struct ldap_search_input *input,
ldap_result_callback_t *callback,
void *context)
{
struct ldap_op_queue_entry *req;
pool_t pool = pool_alloconly_create(MEMPOOL_GROWING "ldap search", 128);
req = p_new(pool, struct ldap_op_queue_entry, 1);
req->pool = pool;
struct ldap_search_ctx *sctx = p_new(pool, struct ldap_search_ctx, 1);
sctx->res.conn = conn;
sctx->res.pool = pool;
p_array_init(&sctx->res.entries, req->pool, 8);
req->internal_response_cb = ldap_search_callback;
req->result_callback = callback;
req->result_callback_ctx = context;
req->input.search = *input;
/* copy strings */
req->input.search.base_dn = p_strdup(req->pool, input->base_dn);
req->input.search.filter = p_strdup(req->pool, input->filter);
if (input->attributes != NULL) {
ARRAY_TYPE(const_string) arr;
p_array_init(&arr, req->pool, 8);
for (const char *const *ptr = input->attributes; *ptr != NULL; ptr++) {
const char *tmp = p_strdup(req->pool, *ptr);
array_push_back(&arr, &tmp);
}
array_append_zero(&arr);
req->input.search.attributes = array_front_modifiable(&arr);
}
req->send_request_cb = ldap_search_send;
sctx->input = &req->input.search;
req->ctx = sctx;
req->timeout_secs = input->timeout_secs;
ldap_connection_queue_request(conn, req);
}
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