homework-jianmu/source/dnode/mnode/impl/src/mndUser.c

745 lines
24 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define _DEFAULT_SOURCE
#include "mndUser.h"
#include "mndAuth.h"
#include "mndDb.h"
#include "mndShow.h"
#include "mndTrans.h"
#include "tkey.h"
#define TSDB_USER_VER_NUMBER 1
#define TSDB_USER_RESERVE_SIZE 64
static int32_t mndCreateDefaultUsers(SMnode *pMnode);
static SSdbRaw *mndUserActionEncode(SUserObj *pUser);
static SSdbRow *mndUserActionDecode(SSdbRaw *pRaw);
static int32_t mndUserActionInsert(SSdb *pSdb, SUserObj *pUser);
static int32_t mndUserActionDelete(SSdb *pSdb, SUserObj *pUser);
static int32_t mndUserActionUpdate(SSdb *pSdb, SUserObj *pOld, SUserObj *pNew);
static int32_t mndCreateUser(SMnode *pMnode, char *acct, SCreateUserReq *pCreate, SMnodeMsg *pReq);
static int32_t mndProcessCreateUserReq(SMnodeMsg *pReq);
static int32_t mndProcessAlterUserReq(SMnodeMsg *pReq);
static int32_t mndProcessDropUserReq(SMnodeMsg *pReq);
static int32_t mndProcessGetUserAuthReq(SMnodeMsg *pReq);
static int32_t mndGetUserMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *pMeta);
static int32_t mndRetrieveUsers(SMnodeMsg *pReq, SShowObj *pShow, char *data, int32_t rows);
static void mndCancelGetNextUser(SMnode *pMnode, void *pIter);
int32_t mndInitUser(SMnode *pMnode) {
SSdbTable table = {.sdbType = SDB_USER,
.keyType = SDB_KEY_BINARY,
.deployFp = (SdbDeployFp)mndCreateDefaultUsers,
.encodeFp = (SdbEncodeFp)mndUserActionEncode,
.decodeFp = (SdbDecodeFp)mndUserActionDecode,
.insertFp = (SdbInsertFp)mndUserActionInsert,
.updateFp = (SdbUpdateFp)mndUserActionUpdate,
.deleteFp = (SdbDeleteFp)mndUserActionDelete};
mndSetMsgHandle(pMnode, TDMT_MND_CREATE_USER, mndProcessCreateUserReq);
mndSetMsgHandle(pMnode, TDMT_MND_ALTER_USER, mndProcessAlterUserReq);
mndSetMsgHandle(pMnode, TDMT_MND_DROP_USER, mndProcessDropUserReq);
mndSetMsgHandle(pMnode, TDMT_MND_GET_USER_AUTH, mndProcessGetUserAuthReq);
mndAddShowMetaHandle(pMnode, TSDB_MGMT_TABLE_USER, mndGetUserMeta);
mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_USER, mndRetrieveUsers);
mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_USER, mndCancelGetNextUser);
return sdbSetTable(pMnode->pSdb, table);
}
void mndCleanupUser(SMnode *pMnode) {}
static int32_t mndCreateDefaultUser(SMnode *pMnode, char *acct, char *user, char *pass) {
SUserObj userObj = {0};
taosEncryptPass_c((uint8_t *)pass, strlen(pass), userObj.pass);
tstrncpy(userObj.user, user, TSDB_USER_LEN);
tstrncpy(userObj.acct, acct, TSDB_USER_LEN);
userObj.createdTime = taosGetTimestampMs();
userObj.updateTime = userObj.createdTime;
if (strcmp(user, TSDB_DEFAULT_USER) == 0) {
userObj.superUser = 1;
}
SSdbRaw *pRaw = mndUserActionEncode(&userObj);
if (pRaw == NULL) return -1;
sdbSetRawStatus(pRaw, SDB_STATUS_READY);
mDebug("user:%s, will be created while deploy sdb, raw:%p", userObj.user, pRaw);
return sdbWrite(pMnode->pSdb, pRaw);
}
static int32_t mndCreateDefaultUsers(SMnode *pMnode) {
if (mndCreateDefaultUser(pMnode, TSDB_DEFAULT_USER, TSDB_DEFAULT_USER, TSDB_DEFAULT_PASS) != 0) {
return -1;
}
#if 0
if (mndCreateDefaultUser(pMnode, TSDB_DEFAULT_USER, "_" TSDB_DEFAULT_USER, TSDB_DEFAULT_PASS) != 0) {
return -1;
}
#endif
return 0;
}
static SSdbRaw *mndUserActionEncode(SUserObj *pUser) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
int32_t numOfReadDbs = taosHashGetSize(pUser->readDbs);
int32_t numOfWriteDbs = taosHashGetSize(pUser->writeDbs);
int32_t size = sizeof(SUserObj) + TSDB_USER_RESERVE_SIZE + (numOfReadDbs + numOfWriteDbs) * TSDB_DB_FNAME_LEN;
SSdbRaw *pRaw = sdbAllocRaw(SDB_USER, TSDB_USER_VER_NUMBER, size);
if (pRaw == NULL) goto USER_ENCODE_OVER;
int32_t dataPos = 0;
SDB_SET_BINARY(pRaw, dataPos, pUser->user, TSDB_USER_LEN, USER_ENCODE_OVER)
SDB_SET_BINARY(pRaw, dataPos, pUser->pass, TSDB_PASSWORD_LEN, USER_ENCODE_OVER)
SDB_SET_BINARY(pRaw, dataPos, pUser->acct, TSDB_USER_LEN, USER_ENCODE_OVER)
SDB_SET_INT64(pRaw, dataPos, pUser->createdTime, USER_ENCODE_OVER)
SDB_SET_INT64(pRaw, dataPos, pUser->updateTime, USER_ENCODE_OVER)
SDB_SET_INT8(pRaw, dataPos, pUser->superUser, USER_ENCODE_OVER)
SDB_SET_INT32(pRaw, dataPos, numOfReadDbs, USER_ENCODE_OVER)
SDB_SET_INT32(pRaw, dataPos, numOfWriteDbs, USER_ENCODE_OVER)
char *db = taosHashIterate(pUser->readDbs, NULL);
while (db != NULL) {
SDB_SET_BINARY(pRaw, dataPos, db, TSDB_DB_FNAME_LEN, USER_ENCODE_OVER);
db = taosHashIterate(pUser->readDbs, db);
}
db = taosHashIterate(pUser->writeDbs, NULL);
while (db != NULL) {
SDB_SET_BINARY(pRaw, dataPos, db, TSDB_DB_FNAME_LEN, USER_ENCODE_OVER);
db = taosHashIterate(pUser->writeDbs, db);
}
SDB_SET_RESERVE(pRaw, dataPos, TSDB_USER_RESERVE_SIZE, USER_ENCODE_OVER)
SDB_SET_DATALEN(pRaw, dataPos, USER_ENCODE_OVER)
terrno = 0;
USER_ENCODE_OVER:
if (terrno != 0) {
mError("user:%s, failed to encode to raw:%p since %s", pUser->user, pRaw, terrstr());
sdbFreeRaw(pRaw);
return NULL;
}
mTrace("user:%s, encode to raw:%p, row:%p", pUser->user, pRaw, pUser);
return pRaw;
}
static SSdbRow *mndUserActionDecode(SSdbRaw *pRaw) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
int8_t sver = 0;
if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto USER_DECODE_OVER;
if (sver != TSDB_USER_VER_NUMBER) {
terrno = TSDB_CODE_SDB_INVALID_DATA_VER;
goto USER_DECODE_OVER;
}
SSdbRow *pRow = sdbAllocRow(sizeof(SUserObj));
if (pRow == NULL) goto USER_DECODE_OVER;
SUserObj *pUser = sdbGetRowObj(pRow);
if (pUser == NULL) goto USER_DECODE_OVER;
pUser->readDbs = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, true);
pUser->writeDbs = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, true);
if (pUser->readDbs == NULL || pUser->writeDbs == NULL) goto USER_DECODE_OVER;
int32_t dataPos = 0;
SDB_GET_BINARY(pRaw, dataPos, pUser->user, TSDB_USER_LEN, USER_DECODE_OVER)
SDB_GET_BINARY(pRaw, dataPos, pUser->pass, TSDB_PASSWORD_LEN, USER_DECODE_OVER)
SDB_GET_BINARY(pRaw, dataPos, pUser->acct, TSDB_USER_LEN, USER_DECODE_OVER)
SDB_GET_INT64(pRaw, dataPos, &pUser->createdTime, USER_DECODE_OVER)
SDB_GET_INT64(pRaw, dataPos, &pUser->updateTime, USER_DECODE_OVER)
SDB_GET_INT8(pRaw, dataPos, &pUser->superUser, USER_DECODE_OVER)
int32_t numOfReadDbs = 0;
int32_t numOfWriteDbs = 0;
SDB_GET_INT32(pRaw, dataPos, &numOfReadDbs, USER_DECODE_OVER)
SDB_GET_INT32(pRaw, dataPos, &numOfWriteDbs, USER_DECODE_OVER)
for (int32_t i = 0; i < numOfReadDbs; ++i) {
char db[TSDB_DB_FNAME_LEN] = {0};
SDB_GET_BINARY(pRaw, dataPos, db, TSDB_DB_FNAME_LEN, USER_DECODE_OVER)
int32_t len = strlen(db) + 1;
taosHashPut(pUser->readDbs, db, len, db, TSDB_DB_FNAME_LEN);
}
for (int32_t i = 0; i < numOfWriteDbs; ++i) {
char db[TSDB_DB_FNAME_LEN] = {0};
SDB_GET_BINARY(pRaw, dataPos, db, TSDB_DB_FNAME_LEN, USER_DECODE_OVER)
int32_t len = strlen(db) + 1;
taosHashPut(pUser->writeDbs, db, len, db, TSDB_DB_FNAME_LEN);
}
SDB_GET_RESERVE(pRaw, dataPos, TSDB_USER_RESERVE_SIZE, USER_DECODE_OVER)
terrno = 0;
USER_DECODE_OVER:
if (terrno != 0) {
mError("user:%s, failed to decode from raw:%p since %s", pUser->user, pRaw, terrstr());
taosHashCleanup(pUser->readDbs);
taosHashCleanup(pUser->writeDbs);
tfree(pRow);
return NULL;
}
mTrace("user:%s, decode from raw:%p, row:%p", pUser->user, pRaw, pUser);
return pRow;
}
static int32_t mndUserActionInsert(SSdb *pSdb, SUserObj *pUser) {
mTrace("user:%s, perform insert action, row:%p", pUser->user, pUser);
SAcctObj *pAcct = sdbAcquire(pSdb, SDB_ACCT, pUser->acct);
if (pAcct == NULL) {
terrno = TSDB_CODE_MND_ACCT_NOT_EXIST;
mError("user:%s, failed to perform insert action since %s", pUser->user, terrstr());
return -1;
}
pUser->acctId = pAcct->acctId;
sdbRelease(pSdb, pAcct);
return 0;
}
static int32_t mndUserActionDelete(SSdb *pSdb, SUserObj *pUser) {
mTrace("user:%s, perform delete action, row:%p", pUser->user, pUser);
taosHashCleanup(pUser->readDbs);
taosHashCleanup(pUser->writeDbs);
return 0;
}
static int32_t mndUserActionUpdate(SSdb *pSdb, SUserObj *pOld, SUserObj *pNew) {
mTrace("user:%s, perform update action, old row:%p new row:%p", pOld->user, pOld, pNew);
memcpy(pOld->pass, pNew->pass, TSDB_PASSWORD_LEN);
pOld->updateTime = pNew->updateTime;
void *tmp1 = pOld->readDbs;
pOld->readDbs = pNew->readDbs;
pNew->readDbs = tmp1;
void *tmp2 = pOld->writeDbs;
pOld->writeDbs = pNew->writeDbs;
pNew->writeDbs = tmp2;
return 0;
}
SUserObj *mndAcquireUser(SMnode *pMnode, char *userName) {
SSdb *pSdb = pMnode->pSdb;
SUserObj *pUser = sdbAcquire(pSdb, SDB_USER, userName);
if (pUser == NULL) {
terrno = TSDB_CODE_MND_USER_NOT_EXIST;
}
return pUser;
}
void mndReleaseUser(SMnode *pMnode, SUserObj *pUser) {
SSdb *pSdb = pMnode->pSdb;
sdbRelease(pSdb, pUser);
}
static int32_t mndCreateUser(SMnode *pMnode, char *acct, SCreateUserReq *pCreate, SMnodeMsg *pReq) {
SUserObj userObj = {0};
taosEncryptPass_c((uint8_t *)pCreate->pass, strlen(pCreate->pass), userObj.pass);
tstrncpy(userObj.user, pCreate->user, TSDB_USER_LEN);
tstrncpy(userObj.acct, acct, TSDB_USER_LEN);
userObj.createdTime = taosGetTimestampMs();
userObj.updateTime = userObj.createdTime;
userObj.superUser = pCreate->superUser;
STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK,TRN_TYPE_CREATE_USER, &pReq->rpcMsg);
if (pTrans == NULL) {
mError("user:%s, failed to create since %s", pCreate->user, terrstr());
return -1;
}
mDebug("trans:%d, used to create user:%s", pTrans->id, pCreate->user);
SSdbRaw *pRedoRaw = mndUserActionEncode(&userObj);
if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
mndTransDrop(pTrans);
return -1;
}
sdbSetRawStatus(pRedoRaw, SDB_STATUS_READY);
if (mndTransPrepare(pMnode, pTrans) != 0) {
mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
mndTransDrop(pTrans);
return -1;
}
mndTransDrop(pTrans);
return 0;
}
static int32_t mndProcessCreateUserReq(SMnodeMsg *pReq) {
SMnode *pMnode = pReq->pMnode;
int32_t code = -1;
SUserObj *pUser = NULL;
SUserObj *pOperUser = NULL;
SCreateUserReq createReq = {0};
if (tDeserializeSCreateUserReq(pReq->rpcMsg.pCont, pReq->rpcMsg.contLen, &createReq) != 0) {
terrno = TSDB_CODE_INVALID_MSG;
goto CREATE_USER_OVER;
}
mDebug("user:%s, start to create", createReq.user);
if (createReq.user[0] == 0) {
terrno = TSDB_CODE_MND_INVALID_USER_FORMAT;
goto CREATE_USER_OVER;
}
if (createReq.pass[0] == 0) {
terrno = TSDB_CODE_MND_INVALID_PASS_FORMAT;
goto CREATE_USER_OVER;
}
pUser = mndAcquireUser(pMnode, createReq.user);
if (pUser != NULL) {
terrno = TSDB_CODE_MND_USER_ALREADY_EXIST;
goto CREATE_USER_OVER;
}
pOperUser = mndAcquireUser(pMnode, pReq->user);
if (pOperUser == NULL) {
terrno = TSDB_CODE_MND_NO_USER_FROM_CONN;
goto CREATE_USER_OVER;
}
if (mndCheckCreateUserAuth(pOperUser) != 0) {
goto CREATE_USER_OVER;
}
code = mndCreateUser(pMnode, pOperUser->acct, &createReq, pReq);
if (code == 0) code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
CREATE_USER_OVER:
if (code != 0 && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
mError("user:%s, failed to create since %s", createReq.user, terrstr());
}
mndReleaseUser(pMnode, pUser);
mndReleaseUser(pMnode, pOperUser);
return code;
}
static int32_t mndUpdateUser(SMnode *pMnode, SUserObj *pOld, SUserObj *pNew, SMnodeMsg *pReq) {
STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_TYPE_ALTER_USER,&pReq->rpcMsg);
if (pTrans == NULL) {
mError("user:%s, failed to update since %s", pOld->user, terrstr());
return -1;
}
mDebug("trans:%d, used to update user:%s", pTrans->id, pOld->user);
SSdbRaw *pRedoRaw = mndUserActionEncode(pNew);
if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
mndTransDrop(pTrans);
return -1;
}
sdbSetRawStatus(pRedoRaw, SDB_STATUS_READY);
if (mndTransPrepare(pMnode, pTrans) != 0) {
mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
mndTransDrop(pTrans);
return -1;
}
mndTransDrop(pTrans);
return 0;
}
static SHashObj *mndDupDbHash(SHashObj *pOld) {
SHashObj *pNew = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, true);
if (pNew == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return NULL;
}
char *db = taosHashIterate(pOld, NULL);
while (db != NULL) {
int32_t len = strlen(db) + 1;
if (taosHashPut(pNew, db, len, db, TSDB_DB_FNAME_LEN) != 0) {
taosHashCancelIterate(pOld, db);
terrno = TSDB_CODE_OUT_OF_MEMORY;
taosHashCleanup(pNew);
return NULL;
}
db = taosHashIterate(pOld, db);
}
return pNew;
}
static int32_t mndProcessAlterUserReq(SMnodeMsg *pReq) {
SMnode *pMnode = pReq->pMnode;
int32_t code = -1;
SUserObj *pUser = NULL;
SUserObj *pOperUser = NULL;
SUserObj newUser = {0};
SAlterUserReq alterReq = {0};
if (tDeserializeSAlterUserReq(pReq->rpcMsg.pCont, pReq->rpcMsg.contLen, &alterReq) != 0) {
terrno = TSDB_CODE_INVALID_MSG;
goto ALTER_USER_OVER;
}
mDebug("user:%s, start to alter", alterReq.user);
if (alterReq.user[0] == 0) {
terrno = TSDB_CODE_MND_INVALID_USER_FORMAT;
goto ALTER_USER_OVER;
}
if (alterReq.pass[0] == 0) {
terrno = TSDB_CODE_MND_INVALID_PASS_FORMAT;
goto ALTER_USER_OVER;
}
pUser = mndAcquireUser(pMnode, alterReq.user);
if (pUser == NULL) {
terrno = TSDB_CODE_MND_USER_NOT_EXIST;
goto ALTER_USER_OVER;
}
pOperUser = mndAcquireUser(pMnode, pReq->user);
if (pOperUser == NULL) {
terrno = TSDB_CODE_MND_NO_USER_FROM_CONN;
goto ALTER_USER_OVER;
}
memcpy(&newUser, pUser, sizeof(SUserObj));
newUser.readDbs = mndDupDbHash(pUser->readDbs);
newUser.writeDbs = mndDupDbHash(pUser->writeDbs);
if (newUser.readDbs == NULL || newUser.writeDbs == NULL) {
goto ALTER_USER_OVER;
}
int32_t len = strlen(alterReq.dbname) + 1;
SDbObj *pDb = mndAcquireDb(pMnode, alterReq.dbname);
mndReleaseDb(pMnode, pDb);
if (alterReq.alterType == TSDB_ALTER_USER_PASSWD) {
char pass[TSDB_PASSWORD_LEN + 1] = {0};
taosEncryptPass_c((uint8_t *)alterReq.pass, strlen(alterReq.pass), pass);
memcpy(pUser->pass, pass, TSDB_PASSWORD_LEN);
} else if (alterReq.alterType == TSDB_ALTER_USER_SUPERUSER) {
newUser.superUser = alterReq.superUser;
} else if (alterReq.alterType == TSDB_ALTER_USER_ADD_READ_DB) {
if (pDb == NULL) {
terrno = TSDB_CODE_MND_DB_NOT_EXIST;
goto ALTER_USER_OVER;
}
if (taosHashPut(newUser.readDbs, alterReq.dbname, len, alterReq.dbname, TSDB_DB_FNAME_LEN) != 0) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
goto ALTER_USER_OVER;
}
} else if (alterReq.alterType == TSDB_ALTER_USER_REMOVE_READ_DB) {
if (taosHashRemove(newUser.readDbs, alterReq.dbname, len) != 0) {
terrno = TSDB_CODE_MND_DB_NOT_EXIST;
goto ALTER_USER_OVER;
}
} else if (alterReq.alterType == TSDB_ALTER_USER_CLEAR_READ_DB) {
taosHashClear(newUser.readDbs);
} else if (alterReq.alterType == TSDB_ALTER_USER_ADD_WRITE_DB) {
if (pDb == NULL) {
terrno = TSDB_CODE_MND_DB_NOT_EXIST;
goto ALTER_USER_OVER;
}
if (taosHashPut(newUser.writeDbs, alterReq.dbname, len, alterReq.dbname, TSDB_DB_FNAME_LEN) != 0) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
goto ALTER_USER_OVER;
}
} else if (alterReq.alterType == TSDB_ALTER_USER_REMOVE_WRITE_DB) {
if (taosHashRemove(newUser.writeDbs, alterReq.dbname, len) != 0) {
terrno = TSDB_CODE_MND_DB_NOT_EXIST;
goto ALTER_USER_OVER;
}
} else if (alterReq.alterType == TSDB_ALTER_USER_CLEAR_WRITE_DB) {
taosHashClear(newUser.writeDbs);
} else {
terrno = TSDB_CODE_MND_INVALID_ALTER_OPER;
goto ALTER_USER_OVER;
}
newUser.updateTime = taosGetTimestampMs();
if (mndCheckAlterUserAuth(pOperUser, pUser, pDb, &alterReq) != 0) {
goto ALTER_USER_OVER;
}
code = mndUpdateUser(pMnode, pUser, &newUser, pReq);
if (code == 0) code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
ALTER_USER_OVER:
if (code != 0 && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
mError("user:%s, failed to alter since %s", alterReq.user, terrstr());
}
mndReleaseUser(pMnode, pOperUser);
mndReleaseUser(pMnode, pUser);
taosHashCleanup(newUser.writeDbs);
taosHashCleanup(newUser.readDbs);
return code;
}
static int32_t mndDropUser(SMnode *pMnode, SMnodeMsg *pReq, SUserObj *pUser) {
STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK,TRN_TYPE_DROP_USER, &pReq->rpcMsg);
if (pTrans == NULL) {
mError("user:%s, failed to drop since %s", pUser->user, terrstr());
return -1;
}
mDebug("trans:%d, used to drop user:%s", pTrans->id, pUser->user);
SSdbRaw *pRedoRaw = mndUserActionEncode(pUser);
if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
mndTransDrop(pTrans);
return -1;
}
sdbSetRawStatus(pRedoRaw, SDB_STATUS_DROPPED);
if (mndTransPrepare(pMnode, pTrans) != 0) {
mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
mndTransDrop(pTrans);
return -1;
}
mndTransDrop(pTrans);
return 0;
}
static int32_t mndProcessDropUserReq(SMnodeMsg *pReq) {
SMnode *pMnode = pReq->pMnode;
int32_t code = -1;
SUserObj *pUser = NULL;
SUserObj *pOperUser = NULL;
SDropUserReq dropReq = {0};
if (tDeserializeSDropUserReq(pReq->rpcMsg.pCont, pReq->rpcMsg.contLen, &dropReq) != 0) {
terrno = TSDB_CODE_INVALID_MSG;
goto DROP_USER_OVER;
}
mDebug("user:%s, start to drop", dropReq.user);
if (dropReq.user[0] == 0) {
terrno = TSDB_CODE_MND_INVALID_USER_FORMAT;
goto DROP_USER_OVER;
}
pUser = mndAcquireUser(pMnode, dropReq.user);
if (pUser == NULL) {
terrno = TSDB_CODE_MND_USER_NOT_EXIST;
goto DROP_USER_OVER;
}
pOperUser = mndAcquireUser(pMnode, pReq->user);
if (pOperUser == NULL) {
terrno = TSDB_CODE_MND_NO_USER_FROM_CONN;
goto DROP_USER_OVER;
}
if (mndCheckDropUserAuth(pOperUser) != 0) {
goto DROP_USER_OVER;
}
code = mndDropUser(pMnode, pReq, pUser);
if (code == 0) code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
DROP_USER_OVER:
if (code != 0 && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
mError("user:%s, failed to drop since %s", dropReq.user, terrstr());
}
mndReleaseUser(pMnode, pOperUser);
mndReleaseUser(pMnode, pUser);
return code;
}
static int32_t mndProcessGetUserAuthReq(SMnodeMsg *pReq) {
SMnode *pMnode = pReq->pMnode;
int32_t code = -1;
SUserObj *pUser = NULL;
SGetUserAuthReq authReq = {0};
SGetUserAuthRsp authRsp = {0};
if (tDeserializeSGetUserAuthReq(pReq->rpcMsg.pCont, pReq->rpcMsg.contLen, &authReq) != 0) {
terrno = TSDB_CODE_INVALID_MSG;
goto GET_AUTH_OVER;
}
mTrace("user:%s, start to get auth", authReq.user);
pUser = mndAcquireUser(pMnode, authReq.user);
if (pUser == NULL) {
terrno = TSDB_CODE_MND_USER_NOT_EXIST;
goto GET_AUTH_OVER;
}
memcpy(authRsp.user, pUser->user, TSDB_USER_LEN);
authRsp.superAuth = pUser->superUser;
authRsp.readDbs = mndDupDbHash(pUser->readDbs);
authRsp.writeDbs = mndDupDbHash(pUser->writeDbs);
SSdb *pSdb = pMnode->pSdb;
void *pIter = NULL;
while (1) {
SDbObj *pDb = NULL;
pIter = sdbFetch(pSdb, SDB_DB, pIter, (void **)&pDb);
if (pIter == NULL) break;
if (strcmp(pDb->createUser, pUser->user) == 0) {
int32_t len = strlen(pDb->name) + 1;
taosHashPut(authRsp.readDbs, pDb->name, len, pDb->name, len);
taosHashPut(authRsp.writeDbs, pDb->name, len, pDb->name, len);
}
sdbRelease(pSdb, pDb);
}
int32_t contLen = tSerializeSGetUserAuthRsp(NULL, 0, &authRsp);
void *pRsp = rpcMallocCont(contLen);
if (pRsp == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
goto GET_AUTH_OVER;
}
tSerializeSGetUserAuthRsp(pRsp, contLen, &authRsp);
pReq->pCont = pRsp;
pReq->contLen = contLen;
code = 0;
GET_AUTH_OVER:
mndReleaseUser(pMnode, pUser);
taosHashCleanup(authRsp.readDbs);
taosHashCleanup(authRsp.writeDbs);
return code;
}
static int32_t mndGetUserMeta(SMnodeMsg *pReq, SShowObj *pShow, STableMetaRsp *pMeta) {
SMnode *pMnode = pReq->pMnode;
SSdb *pSdb = pMnode->pSdb;
int32_t cols = 0;
SSchema *pSchema = pMeta->pSchemas;
pShow->bytes[cols] = TSDB_USER_LEN + VARSTR_HEADER_SIZE;
pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
strcpy(pSchema[cols].name, "name");
pSchema[cols].bytes = pShow->bytes[cols];
cols++;
pShow->bytes[cols] = 10 + VARSTR_HEADER_SIZE;
pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
strcpy(pSchema[cols].name, "privilege");
pSchema[cols].bytes = pShow->bytes[cols];
cols++;
pShow->bytes[cols] = 8;
pSchema[cols].type = TSDB_DATA_TYPE_TIMESTAMP;
strcpy(pSchema[cols].name, "create_time");
pSchema[cols].bytes = pShow->bytes[cols];
cols++;
pShow->bytes[cols] = TSDB_USER_LEN + VARSTR_HEADER_SIZE;
pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
strcpy(pSchema[cols].name, "account");
pSchema[cols].bytes = pShow->bytes[cols];
cols++;
pMeta->numOfColumns = cols;
pShow->numOfColumns = cols;
pShow->offset[0] = 0;
for (int32_t i = 1; i < cols; ++i) {
pShow->offset[i] = pShow->offset[i - 1] + pShow->bytes[i - 1];
}
pShow->numOfRows = sdbGetSize(pSdb, SDB_USER);
pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
strcpy(pMeta->tbName, mndShowStr(pShow->type));
return 0;
}
static int32_t mndRetrieveUsers(SMnodeMsg *pReq, SShowObj *pShow, char *data, int32_t rows) {
SMnode *pMnode = pReq->pMnode;
SSdb *pSdb = pMnode->pSdb;
int32_t numOfRows = 0;
SUserObj *pUser = NULL;
int32_t cols = 0;
char *pWrite;
while (numOfRows < rows) {
pShow->pIter = sdbFetch(pSdb, SDB_USER, pShow->pIter, (void **)&pUser);
if (pShow->pIter == NULL) break;
cols = 0;
pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pUser->user, pShow->bytes[cols]);
cols++;
pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
if (pUser->superUser) {
const char *src = "super";
STR_WITH_SIZE_TO_VARSTR(pWrite, src, strlen(src));
} else {
const char *src = "normal";
STR_WITH_SIZE_TO_VARSTR(pWrite, src, strlen(src));
}
cols++;
pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
*(int64_t *)pWrite = pUser->createdTime;
cols++;
pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pUser->acct, pShow->bytes[cols]);
cols++;
numOfRows++;
sdbRelease(pSdb, pUser);
}
mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
pShow->numOfReads += numOfRows;
return numOfRows;
}
static void mndCancelGetNextUser(SMnode *pMnode, void *pIter) {
SSdb *pSdb = pMnode->pSdb;
sdbCancelFetch(pSdb, pIter);
}