sasl_conn_t *php_mongo_saslstart(mongo_con_manager *manager, mongo_connection *con, mongo_server_options *options, mongo_server_def *server_def, sasl_conn_t *conn, char **out_payload, int *out_payload_len, int32_t *conversation_id, char **error_message)
{
const char *raw_payload;
char encoded_payload[4096];
unsigned int raw_payload_len, encoded_payload_len;
int result;
char *mechanism_list = "GSSAPI";
const char *mechanism_selected;
sasl_interact_t *client_interact=NULL;
result = sasl_client_start(conn, mechanism_list, &client_interact, &raw_payload, &raw_payload_len, &mechanism_selected);
if (is_sasl_failure(conn, result, error_message)) {
return NULL;
}
if (result != SASL_CONTINUE) {
*error_message = strdup("Could not negotiate SASL mechanism");
return NULL;
}
mechanism_selected = "GSSAPI";
result = sasl_encode64(raw_payload, raw_payload_len, encoded_payload, sizeof(encoded_payload), &encoded_payload_len);
if (is_sasl_failure(conn, result, error_message)) {
return NULL;
}
if (!mongo_connection_authenticate_saslstart(manager, con, options, server_def, (char *)mechanism_selected, encoded_payload, encoded_payload_len + 1, out_payload, out_payload_len, conversation_id, error_message)) {
return NULL;
}
return conn;
}
int php_mongo_saslcontinue(mongo_con_manager *manager, mongo_connection *con, mongo_server_options *options, mongo_server_def *server_def, sasl_conn_t *conn, char *step_payload, int step_payload_len, int32_t conversation_id, char **error_message) {
sasl_interact_t *client_interact=NULL;
/*
* Snippet from sasl.h:
* 4. client calls sasl_client_step()
* 4b. If SASL error, goto 7 or 3
* 4c. If SASL_OK, continue or goto 6 if last server response was success
*/
do {
char base_payload[4096], payload[4096];
unsigned int base_payload_len, payload_len;
const char *out;
unsigned int outlen;
unsigned char done = 0;
int result;
step_payload_len--; /* Remove the \0 from the string */
result = sasl_decode64(step_payload, step_payload_len, base_payload, sizeof(base_payload), &base_payload_len);
if (is_sasl_failure(conn, result, error_message)) {
return 0;
}
result = sasl_client_step(conn, (const char *)base_payload, base_payload_len, &client_interact, &out, &outlen);
if (is_sasl_failure(conn, result, error_message)) {
return 0;
}
result = sasl_encode64(out, outlen, payload, sizeof(base_payload), &payload_len);
if (is_sasl_failure(conn, result, error_message)) {
return 0;
}
if (!mongo_connection_authenticate_saslcontinue(manager, con, options, server_def, conversation_id, payload, payload_len + 1, &step_payload, &step_payload_len, &done, error_message)) {
return 0;
}
if (done) {
break;
}
} while (1);
return 1;
}
int php_mongo_saslcontinue(mongo_con_manager *manager, mongo_connection *con, mongo_server_options *options, mongo_server_def *server_def, sasl_conn_t *conn, char *step_payload, int step_payload_len, int32_t conversation_id, char **error_message) {
int result;
sasl_interact_t *client_interact=NULL;
do {
char base_payload[4096], payload[4096];
unsigned int base_payload_len, payload_len;
unsigned char done;
const char *out;
unsigned int outlen;
result = sasl_decode64(step_payload, step_payload_len, base_payload, sizeof(base_payload), &base_payload_len);
if (is_sasl_failure(conn, result, error_message)) {
return result;
}
result = sasl_client_step(conn, (const char *)base_payload, base_payload_len, &client_interact, &out, &outlen);
if (is_sasl_failure(conn, result, error_message)) {
return result;
}
/* TODO : Deal with interaction */
if (result == SASL_OK) {
/* We are all done */
break;
}
result = sasl_encode64(out, outlen, payload, sizeof(base_payload), &payload_len);
if (is_sasl_failure(conn, result, error_message)) {
return result;
}
if (!mongo_connection_authenticate_saslcontinue(manager, con, options, server_def, conversation_id, payload, payload_len + 1, &step_payload, &step_payload_len, &done, (char **)&error_message)) {
*error_message = strdup("saslStart failed miserably");
return result;
}
} while (result == SASL_INTERACT || result == SASL_CONTINUE);
return result;
}