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// Copyright (c) 2015-present, Qihoo, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
#include "include/pika_admin.h"
#include <sys/statvfs.h>
#include <sys/time.h>
#include <sys/utsname.h>
#include <algorithm>
#include <unordered_map>
#include <glog/logging.h>
#include "include/build_version.h"
#include "include/pika_conf.h"
#include "include/pika_rm.h"
#include "include/pika_server.h"
#include "include/pika_version.h"
#include "pstd/include/rsync.h"
using pstd::Status;
extern PikaServer* g_pika_server;
extern std::unique_ptr<PikaReplicaManager> g_pika_rm;
extern std::unique_ptr<PikaCmdTableManager> g_pika_cmd_table_manager;
static std::string ConstructPinginPubSubResp(const PikaCmdArgsType& argv) {
if (argv.size() > 2) {
return "-ERR wrong number of arguments for " + kCmdNamePing + " command\r\n";
}
std::stringstream resp;
resp << "*2\r\n"
<< "$4\r\n"
<< "pong\r\n";
if (argv.size() == 2) {
resp << "$" << argv[1].size() << "\r\n" << argv[1] << "\r\n";
} else {
resp << "$0\r\n\r\n";
}
return resp.str();
}
static double MethodofCommandStatistics(const uint64_t time_consuming, const uint64_t frequency) {
return (static_cast<double>(time_consuming) / 1000.0) / static_cast<double>(frequency);
}
static double MethodofTotalTimeCalculation(const uint64_t time_consuming) {
return static_cast<double>(time_consuming) / 1000.0;
}
enum AuthResult {
OK,
INVALID_PASSWORD,
NO_REQUIRE_PASS,
INVALID_CONN,
};
static AuthResult AuthenticateUser(const std::string& cmdName, const std::string& userName, const std::string& pwd,
const std::shared_ptr<net::NetConn>& conn, bool defaultAuth) {
if (defaultAuth) {
auto defaultUser = g_pika_server->Acl()->GetUserLock(Acl::DefaultUser);
if (defaultUser->HasFlags(static_cast<uint32_t>(AclUserFlag::NO_PASS))) {
return AuthResult::NO_REQUIRE_PASS;
}
}
auto user = g_pika_server->Acl()->Auth(userName, pwd);
if (!user) {
std::string cInfo;
if (auto ptr = std::dynamic_pointer_cast<PikaClientConn>(conn); ptr) {
ptr->ClientInfoToString(&cInfo, cmdName);
}
g_pika_server->Acl()->AddLogEntry(static_cast<int32_t>(AclDeniedCmd::NO_AUTH),
static_cast<int32_t>(AclLogCtx::TOPLEVEL), userName, "AUTH", cInfo);
return AuthResult::INVALID_PASSWORD;
}
if (!conn) {
LOG(WARNING) << " weak ptr is empty";
return AuthResult::INVALID_CONN;
}
std::shared_ptr<PikaClientConn> cli_conn = std::dynamic_pointer_cast<PikaClientConn>(conn);
cli_conn->DoAuth(user);
return AuthResult::OK;
}
/*
* slaveof no one
* slaveof ip port
* slaveof ip port force
*/
void SlaveofCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameSlaveof);
return;
}
if (argv_.size() > 4) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameSlaveof);
return;
}
if (argv_.size() == 3 && (strcasecmp(argv_[1].data(), "no") == 0) && (strcasecmp(argv_[2].data(), "one") == 0)) {
is_none_ = true;
return;
}
// self is master of A , want to slaveof B
if ((g_pika_server->role() & PIKA_ROLE_MASTER) != 0) {
res_.SetRes(CmdRes::kErrOther, "already master of others, invalid usage");
return;
}
master_ip_ = argv_[1];
std::string str_master_port = argv_[2];
if ((pstd::string2int(str_master_port.data(), str_master_port.size(), &master_port_) == 0) || master_port_ <= 0) {
res_.SetRes(CmdRes::kInvalidInt);
return;
}
if ((pstd::StringToLower(master_ip_) == "localhost" || master_ip_ == "127.0.0.1" || master_ip_ == g_pika_server->host()) && master_port_ == g_pika_server->port()) {
res_.SetRes(CmdRes::kErrOther, "The master ip:port and the slave ip:port are the same");
return;
}
if (argv_.size() == 4) {
if (strcasecmp(argv_[3].data(), "force") == 0) {
g_pika_server->SetForceFullSync(true);
} else {
res_.SetRes(CmdRes::kWrongNum, kCmdNameSlaveof);
}
}
}
void SlaveofCmd::Do(std::shared_ptr<Slot> slot) {
// Check if we are already connected to the specified master
if ((master_ip_ == "127.0.0.1" || g_pika_server->master_ip() == master_ip_) &&
g_pika_server->master_port() == master_port_) {
res_.SetRes(CmdRes::kOk);
return;
}
g_pika_server->RemoveMaster();
if (is_none_) {
res_.SetRes(CmdRes::kOk);
g_pika_conf->SetSlaveof(std::string());
return;
}
/* The return value of the slaveof command OK does not really represent whether
* the data synchronization was successful, but only changes the status of the
* slaveof executor to slave */
bool sm_ret = g_pika_server->SetMaster(master_ip_, static_cast<int32_t>(master_port_));
if (sm_ret) {
res_.SetRes(CmdRes::kOk);
g_pika_server->ClearCacheDbAsync(slot);
g_pika_conf->SetSlaveof(master_ip_ + ":" + std::to_string(master_port_));
g_pika_server->SetFirstMetaSync(true);
} else {
res_.SetRes(CmdRes::kErrOther, "Server is not in correct state for slaveof");
}
}
/*
* dbslaveof db[0 ~ 7]
* dbslaveof db[0 ~ 7] force
* dbslaveof db[0 ~ 7] no one
* dbslaveof db[0 ~ 7] filenum offset
*/
void DbSlaveofCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameDbSlaveof);
return;
}
if (((g_pika_server->role() ^ PIKA_ROLE_SLAVE) != 0) || !g_pika_server->MetaSyncDone()) {
res_.SetRes(CmdRes::kErrOther, "Not currently a slave");
return;
}
if (argv_.size() > 4) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameDbSlaveof);
return;
}
db_name_ = argv_[1];
if (!g_pika_server->IsDBExist(db_name_)) {
res_.SetRes(CmdRes::kErrOther, "Invaild db name");
return;
}
if (argv_.size() == 3 && (strcasecmp(argv_[2].data(), "force") == 0)) {
force_sync_ = true;
return;
}
if (argv_.size() == 4) {
if ((strcasecmp(argv_[2].data(), "no") == 0) && (strcasecmp(argv_[3].data(), "one") == 0)) {
is_none_ = true;
return;
}
if ((pstd::string2int(argv_[2].data(), argv_[2].size(), &filenum_) == 0) || filenum_ < 0) {
res_.SetRes(CmdRes::kInvalidInt);
return;
}
if ((pstd::string2int(argv_[3].data(), argv_[3].size(), &offset_) == 0) || offset_ < 0) {
res_.SetRes(CmdRes::kInvalidInt);
return;
}
have_offset_ = true;
}
}
void DbSlaveofCmd::Do(std::shared_ptr<Slot> slot) {
std::shared_ptr<SyncSlaveSlot> slave_slot = g_pika_rm->GetSyncSlaveSlotByName(SlotInfo(db_name_, 0));
if (!slave_slot) {
res_.SetRes(CmdRes::kErrOther, "Db not found");
return;
}
Status s;
if (is_none_) {
// In classic mode a db has only one slot
s = g_pika_rm->SendRemoveSlaveNodeRequest(db_name_, 0);
} else {
if (slave_slot->State() == ReplState::kNoConnect || slave_slot->State() == ReplState::kError ||
slave_slot->State() == ReplState::kDBNoConnect) {
if (have_offset_) {
std::shared_ptr<SyncMasterSlot> db_slot = g_pika_rm->GetSyncMasterSlotByName(SlotInfo(db_name_, 0));
db_slot->Logger()->SetProducerStatus(filenum_, offset_);
}
ReplState state = force_sync_ ? ReplState::kTryDBSync : ReplState::kTryConnect;
s = g_pika_rm->ActivateSyncSlaveSlot(
RmNode(g_pika_server->master_ip(), g_pika_server->master_port(), db_name_, 0), state);
}
}
if (s.ok()) {
res_.SetRes(CmdRes::kOk);
} else {
res_.SetRes(CmdRes::kErrOther, s.ToString());
}
}
void AuthCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameAuth);
return;
}
}
void AuthCmd::Do(std::shared_ptr<Slot> slot) {
std::shared_ptr<net::NetConn> conn = GetConn();
if (!conn) {
res_.SetRes(CmdRes::kErrOther, kCmdNamePing);
LOG(WARNING) << name_ << " weak ptr is empty";
return;
}
std::string userName = "";
std::string pwd = "";
bool defaultAuth = false;
if (argv_.size() == 2) {
userName = Acl::DefaultUser;
pwd = argv_[1];
defaultAuth = true;
} else {
userName = argv_[1];
pwd = argv_[2];
}
auto authResult = AuthenticateUser(name(), userName, pwd, conn, defaultAuth);
switch (authResult) {
case AuthResult::INVALID_CONN:
res_.SetRes(CmdRes::kErrOther, kCmdNamePing);
return;
case AuthResult::INVALID_PASSWORD:
res_.AppendContent("-WRONGPASS invalid username-password pair or user is disabled.");
return;
case AuthResult::NO_REQUIRE_PASS:
res_.SetRes(CmdRes::kErrOther, "Client sent AUTH, but no password is set");
return;
case AuthResult::OK:
break;
}
res_.SetRes(CmdRes::kOk);
}
void BgsaveCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameBgsave);
return;
}
if (argv_.size() == 2) {
std::vector<std::string> dbs;
pstd::StringSplit(argv_[1], COMMA, dbs);
for (const auto& db : dbs) {
if (!g_pika_server->IsDBExist(db)) {
res_.SetRes(CmdRes::kInvalidDB, db);
return;
} else {
bgsave_dbs_.insert(db);
}
}
} else {
bgsave_dbs_ = g_pika_server->GetAllDBName();
}
}
void BgsaveCmd::Do(std::shared_ptr<Slot> slot) {
g_pika_server->DoSameThingSpecificDB(bgsave_dbs_, {TaskType::kBgSave});
LogCommand();
res_.AppendContent("+Background saving started");
}
void CompactCmd::DoInitial() {
if (!CheckArg(argv_.size()) || argv_.size() > 3) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameCompact);
return;
}
if (g_pika_server->IsKeyScaning()) {
res_.SetRes(CmdRes::kErrOther, "The info keyspace operation is executing, Try again later");
return;
}
if (argv_.size() == 1) {
struct_type_ = "all";
compact_dbs_ = g_pika_server->GetAllDBName();
} else if (argv_.size() == 2) {
struct_type_ = argv_[1];
compact_dbs_ = g_pika_server->GetAllDBName();
} else if (argv_.size() == 3) {
std::vector<std::string> dbs;
pstd::StringSplit(argv_[1], COMMA, dbs);
for (const auto& db : dbs) {
if (!g_pika_server->IsDBExist(db)) {
res_.SetRes(CmdRes::kInvalidDB, db);
return;
} else {
compact_dbs_.insert(db);
}
}
struct_type_ = argv_[2];
}
}
void CompactCmd::Do(std::shared_ptr<Slot> slot) {
if (strcasecmp(struct_type_.data(), "all") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactAll});
} else if (strcasecmp(struct_type_.data(), "string") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactStrings});
} else if (strcasecmp(struct_type_.data(), "hash") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactHashes});
} else if (strcasecmp(struct_type_.data(), "set") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactSets});
} else if (strcasecmp(struct_type_.data(), "zset") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactZSets});
} else if (strcasecmp(struct_type_.data(), "list") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactList});
} else {
res_.SetRes(CmdRes::kInvalidDbType, struct_type_);
return;
}
LogCommand();
res_.SetRes(CmdRes::kOk);
}
void CompactRangeCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameCompactRange);
return;
}
if (g_pika_server->IsKeyScaning()) {
res_.SetRes(CmdRes::kErrOther, "The info keyspace operation is executing, Try again later");
return;
}
std::vector<std::string> dbs;
pstd::StringSplit(argv_[1], COMMA, dbs);
for (const auto& db : dbs) {
if (!g_pika_server->IsDBExist(db)) {
res_.SetRes(CmdRes::kInvalidDB, db);
return;
} else {
compact_dbs_.insert(db);
}
}
struct_type_ = argv_[2];
start_key_ = argv_[3];
end_key_ = argv_[4];
}
void CompactRangeCmd::Do(std::shared_ptr<Slot> slot) {
if (strcasecmp(struct_type_.data(), "string") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactRangeStrings, {start_key_, end_key_}});
} else if (strcasecmp(struct_type_.data(), "hash") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactRangeHashes, {start_key_, end_key_}});
} else if (strcasecmp(struct_type_.data(), "set") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactRangeSets, {start_key_, end_key_}});
} else if (strcasecmp(struct_type_.data(), "zset") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactRangeZSets, {start_key_, end_key_}});
} else if (strcasecmp(struct_type_.data(), "list") == 0) {
g_pika_server->DoSameThingSpecificDB(compact_dbs_, {TaskType::kCompactRangeList, {start_key_, end_key_}});
} else {
res_.SetRes(CmdRes::kInvalidDbType, struct_type_);
return;
}
LogCommand();
res_.SetRes(CmdRes::kOk);
}
void PurgelogstoCmd::DoInitial() {
if (!CheckArg(argv_.size()) || argv_.size() > 3) {
res_.SetRes(CmdRes::kWrongNum, kCmdNamePurgelogsto);
return;
}
std::string filename = argv_[1];
if (filename.size() <= kBinlogPrefixLen || kBinlogPrefix != filename.substr(0, kBinlogPrefixLen)) {
res_.SetRes(CmdRes::kInvalidParameter);
return;
}
std::string str_num = filename.substr(kBinlogPrefixLen);
int64_t num = 0;
if ((pstd::string2int(str_num.data(), str_num.size(), &num) == 0) || num < 0) {
res_.SetRes(CmdRes::kInvalidParameter);
return;
}
num_ = num;
db_ = (argv_.size() == 3) ? argv_[2] : g_pika_conf->default_db();
if (!g_pika_server->IsDBExist(db_)) {
res_.SetRes(CmdRes::kInvalidDB, db_);
return;
}
}
void PurgelogstoCmd::Do(std::shared_ptr<Slot> slot) {
std::shared_ptr<SyncMasterSlot> sync_slot = g_pika_rm->GetSyncMasterSlotByName(SlotInfo(db_, 0));
if (!sync_slot) {
res_.SetRes(CmdRes::kErrOther, "Slot not found");
} else {
sync_slot->StableLogger()->PurgeStableLogs(num_, true);
res_.SetRes(CmdRes::kOk);
}
}
void PingCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNamePing);
return;
}
}
void PingCmd::Do(std::shared_ptr<Slot> slot) {
std::shared_ptr<net::NetConn> conn = GetConn();
if (!conn) {
res_.SetRes(CmdRes::kErrOther, kCmdNamePing);
LOG(WARNING) << name_ << " weak ptr is empty";
return;
}
std::shared_ptr<PikaClientConn> cli_conn = std::dynamic_pointer_cast<PikaClientConn>(conn);
if (cli_conn->IsPubSub()) {
return res_.SetRes(CmdRes::kNone, ConstructPinginPubSubResp(argv_));
}
res_.SetRes(CmdRes::kPong);
}
void SelectCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameSelect);
return;
}
db_name_ = "db" + argv_[1];
select_db_ = g_pika_server->GetDB(db_name_);
return;
}
void SelectCmd::Do(std::shared_ptr<Slot> slot) {
std::shared_ptr<PikaClientConn> conn = std::dynamic_pointer_cast<PikaClientConn>(GetConn());
if (!conn) {
res_.SetRes(CmdRes::kErrOther, kCmdNameSelect);
LOG(WARNING) << name_ << " weak ptr is empty";
return;
}
int index = atoi(argv_[1].data());
if (std::to_string(index) != argv_[1]) {
res_.SetRes(CmdRes::kInvalidIndex, kCmdNameSelect);
return;
}
if (index < 0 || index >= g_pika_conf->databases()) {
res_.SetRes(CmdRes::kInvalidIndex, kCmdNameSelect + " DB index is out of range");
return;
}
if (select_db_ == nullptr) {
res_.SetRes(CmdRes::kInvalidDB, kCmdNameSelect);
return;
}
conn->SetCurrentDb(db_name_);
res_.SetRes(CmdRes::kOk);
}
void FlushallCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameFlushall);
return;
}
}
void FlushallCmd::Do(std::shared_ptr<Slot> slot) {
if (!slot) {
LOG(INFO) << "Flushall, but Slot not found";
} else {
slot->FlushDB();
}
}
void FlushallCmd::DoThroughDB(std::shared_ptr<Slot> slot) {
Do(slot);
}
void FlushallCmd::DoUpdateCache(std::shared_ptr<Slot> slot) {
// clear cache
if (PIKA_CACHE_NONE != g_pika_conf->cache_model()) {
g_pika_server->ClearCacheDbAsync(slot);
}
}
// flushall convert flushdb writes to every slot binlog
std::string FlushallCmd::ToRedisProtocol() {
std::string content;
content.reserve(RAW_ARGS_LEN);
RedisAppendLen(content, 1, "*");
// to flushdb cmd
std::string flushdb_cmd("flushdb");
RedisAppendLenUint64(content, flushdb_cmd.size(), "$");
RedisAppendContent(content, flushdb_cmd);
return content;
}
void FlushallCmd::Execute() {
std::lock_guard l_trw(g_pika_server->GetDBLock());
for (const auto& db_item : g_pika_server->GetDB()) {
if (db_item.second->IsKeyScaning()) {
res_.SetRes(CmdRes::kErrOther, "The keyscan operation is executing, Try again later");
return;
}
}
g_pika_rm->SlotLock();
for (const auto& db_item : g_pika_server->GetDB()) {
db_item.second->SlotLock();
}
FlushAllWithoutLock();
for (const auto& db_item : g_pika_server->GetDB()) {
db_item.second->SlotUnlock();
}
g_pika_rm->SlotUnlock();
if (res_.ok()) {
res_.SetRes(CmdRes::kOk);
}
}
void FlushallCmd::FlushAllWithoutLock() {
for (const auto& db_item : g_pika_server->GetDB()) {
for (const auto& slot_item : db_item.second->GetSlots()) {
std::shared_ptr<Slot> slot = slot_item.second;
SlotInfo p_info(slot->GetDBName(), slot->GetSlotID());
if (g_pika_rm->GetSyncMasterSlots().find(p_info) == g_pika_rm->GetSyncMasterSlots().end()) {
res_.SetRes(CmdRes::kErrOther, "Slot not found");
return;
}
DoWithoutLock(slot);
DoBinlog(g_pika_rm->GetSyncMasterSlots()[p_info]);
}
}
if (res_.ok()) {
res_.SetRes(CmdRes::kOk);
}
}
void FlushallCmd::DoWithoutLock(std::shared_ptr<Slot> slot) {
if (!slot) {
LOG(INFO) << "Flushall, but Slot not found";
} else {
slot->FlushDBWithoutLock();
DoUpdateCache(slot);
}
}
void FlushdbCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameFlushdb);
return;
}
if (argv_.size() == 1) {
db_name_ = "all";
} else {
std::string struct_type = argv_[1];
if (strcasecmp(struct_type.data(), "string") == 0) {
db_name_ = "strings";
} else if (strcasecmp(struct_type.data(), "hash") == 0) {
db_name_ = "hashes";
} else if (strcasecmp(struct_type.data(), "set") == 0) {
db_name_ = "sets";
} else if (strcasecmp(struct_type.data(), "zset") == 0) {
db_name_ = "zsets";
} else if (strcasecmp(struct_type.data(), "list") == 0) {
db_name_ = "lists";
} else {
res_.SetRes(CmdRes::kInvalidDbType);
}
}
}
void FlushdbCmd::Do(std::shared_ptr<Slot> slot) {
if (!slot) {
LOG(INFO) << "Flushdb, but Slot not found";
} else {
if (db_name_ == "all") {
slot->FlushDB();
} else {
slot->FlushSubDB(db_name_);
}
}
}
void FlushdbCmd::DoThroughDB(std::shared_ptr<Slot> slot) {
Do(slot);
}
void FlushdbCmd::DoUpdateCache(std::shared_ptr<Slot> slot) {
// clear cache
if (g_pika_conf->cache_model() != PIKA_CACHE_NONE) {
g_pika_server->ClearCacheDbAsync(slot);
}
}
void FlushdbCmd::FlushAllSlotsWithoutLock(std::shared_ptr<DB> db) {
for (const auto& slot_item : db->GetSlots()) {
std::shared_ptr<Slot> slot = slot_item.second;
SlotInfo p_info(slot->GetDBName(), slot->GetSlotID());
if (g_pika_rm->GetSyncMasterSlots().find(p_info) == g_pika_rm->GetSyncMasterSlots().end()) {
res_.SetRes(CmdRes::kErrOther, "Slot not found");
return;
}
DoWithoutLock(slot);
DoBinlog(g_pika_rm->GetSyncMasterSlots()[p_info]);
}
}
void FlushdbCmd::DoWithoutLock(std::shared_ptr<Slot> slot) {
if (!slot) {
LOG(INFO) << "Flushdb, but Slot not found";
} else {
if (db_name_ == "all") {
slot->FlushDBWithoutLock();
} else {
slot->FlushSubDBWithoutLock(db_name_);
}
DoUpdateCache(slot);
}
}
void FlushdbCmd::Execute() {
std::shared_ptr<DB> db = g_pika_server->GetDB(Cmd::db_name_);
if (!db) {
res_.SetRes(CmdRes::kInvalidDB);
} else {
if (db->IsKeyScaning()) {
res_.SetRes(CmdRes::kErrOther, "The keyscan operation is executing, Try again later");
} else {
std::lock_guard l_prw(db->GetSlotLock());
std::lock_guard s_prw(g_pika_rm->GetSlotLock());
FlushAllSlotsWithoutLock(db);
res_.SetRes(CmdRes::kOk);
}
}
}
void ClientCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameClient);
return;
}
if ((strcasecmp(argv_[1].data(), "getname") == 0) && argv_.size() == 2) {
operation_ = argv_[1];
return;
}
if ((strcasecmp(argv_[1].data(), "setname") == 0) && argv_.size() != 3) {
res_.SetRes(CmdRes::kErrOther,
"Unknown subcommand or wrong number of arguments for "
"'SETNAME'., try CLIENT SETNAME <name>");
return;
}
if ((strcasecmp(argv_[1].data(), "setname") == 0) && argv_.size() == 3) {
operation_ = argv_[1];
return;
}
if ((strcasecmp(argv_[1].data(), "list") == 0) && argv_.size() == 2) {
// nothing
} else if ((strcasecmp(argv_[1].data(), "list") == 0) && argv_.size() == 5) {
if ((strcasecmp(argv_[2].data(), "order") == 0) && (strcasecmp(argv_[3].data(), "by") == 0)) {
info_ = argv_[4];
} else {
res_.SetRes(CmdRes::kErrOther, "Syntax error, try CLIENT (LIST [order by [addr|idle])");
return;
}
} else if ((strcasecmp(argv_[1].data(), "kill") == 0) && argv_.size() == 3) {
info_ = argv_[2];
} else {
res_.SetRes(CmdRes::kErrOther, "Syntax error, try CLIENT (LIST [order by [addr|idle]| KILL ip:port)");
return;
}
operation_ = argv_[1];
}
void ClientCmd::Do(std::shared_ptr<Slot> slot) {
std::shared_ptr<net::NetConn> conn = GetConn();
if (!conn) {
res_.SetRes(CmdRes::kErrOther, kCmdNameClient);
return;
}
if ((strcasecmp(operation_.data(), "getname") == 0) && argv_.size() == 2) {
res_.AppendString(conn->name());
return;
}
if ((strcasecmp(operation_.data(), "setname") == 0) && argv_.size() == 3) {
std::string name = argv_[2];
conn->set_name(name);
res_.SetRes(CmdRes::kOk);
return;
}
if (strcasecmp(operation_.data(), "list") == 0) {
struct timeval now;
gettimeofday(&now, nullptr);
std::vector<ClientInfo> clients;
g_pika_server->ClientList(&clients);
auto iter = clients.begin();
std::string reply;
char buf[128];
if (strcasecmp(info_.data(), "addr") == 0) {
std::sort(clients.begin(), clients.end(), AddrCompare);
} else if (strcasecmp(info_.data(), "idle") == 0) {
std::sort(clients.begin(), clients.end(), IdleCompare);
}
while (iter != clients.end()) {
snprintf(buf, sizeof(buf), "addr=%s fd=%d idle=%ld\n", iter->ip_port.c_str(), iter->fd,
iter->last_interaction == 0 ? 0 : now.tv_sec - iter->last_interaction); // NOLINT
reply.append(buf);
iter++;
}
res_.AppendString(reply);
} else if ((strcasecmp(operation_.data(), "kill") == 0) && (strcasecmp(info_.data(), "all") == 0)) {
g_pika_server->ClientKillAll();
res_.SetRes(CmdRes::kOk);
} else if (g_pika_server->ClientKill(info_) == 1) {
res_.SetRes(CmdRes::kOk);
} else {
res_.SetRes(CmdRes::kErrOther, "No such client");
}
}
void ShutdownCmd::DoInitial() {
if (!CheckArg(argv_.size())) {
res_.SetRes(CmdRes::kWrongNum, kCmdNameShutdown);
return;
}
// For now, only shutdown need check local
if (IsLocal()) {
std::shared_ptr<net::NetConn> conn = GetConn();
if (conn) {
if (conn->ip_port().find("127.0.0.1") == std::string::npos &&
conn->ip_port().find(g_pika_server->host()) == std::string::npos) {
LOG(WARNING) << "\'shutdown\' should be localhost"
<< " command from " << conn->ip_port();
res_.SetRes(CmdRes::kErrOther, kCmdNameShutdown + " should be localhost");
}
} else {
LOG(WARNING) << name_ << " weak ptr is empty";
res_.SetRes(CmdRes::kErrOther, kCmdNameShutdown);
return;
}
}
}
// no return
void ShutdownCmd::Do(std::shared_ptr<Slot> slot) {
DLOG(WARNING) << "handle \'shutdown\'";
g_pika_server->Exit();
res_.SetRes(CmdRes::kNone);
}
const std::string InfoCmd::kInfoSection = "info";
const std::string InfoCmd::kAllSection = "all";
const std::string InfoCmd::kServerSection = "server";
const std::string InfoCmd::kClientsSection = "clients";
const std::string InfoCmd::kStatsSection = "stats";
const std::string InfoCmd::kExecCountSection = "command_exec_count";
const std::string InfoCmd::kCPUSection = "cpu";
const std::string InfoCmd::kReplicationSection = "replication";
const std::string InfoCmd::kKeyspaceSection = "keyspace";
const std::string InfoCmd::kDataSection = "data";
const std::string InfoCmd::kRocksDBSection = "rocksdb";
const std::string InfoCmd::kDebugSection = "debug";
const std::string InfoCmd::kCommandStatsSection = "commandstats";
const std::string InfoCmd::kCacheSection = "cache";
void InfoCmd::DoInitial() {
size_t argc = argv_.size();
if (argc > 4) {
res_.SetRes(CmdRes::kSyntaxErr);
return;
}
if (argc == 1) {
info_section_ = kInfo;
return;
} // then the agc is 2 or 3
if (strcasecmp(argv_[1].data(), kAllSection.data()) == 0) {
info_section_ = kInfoAll;
} else if (strcasecmp(argv_[1].data(), kServerSection.data()) == 0) {
info_section_ = kInfoServer;
} else if (strcasecmp(argv_[1].data(), kClientsSection.data()) == 0) {
info_section_ = kInfoClients;
} else if (strcasecmp(argv_[1].data(), kStatsSection.data()) == 0) {
info_section_ = kInfoStats;
} else if (strcasecmp(argv_[1].data(), kExecCountSection.data()) == 0) {
info_section_ = kInfoExecCount;
} else if (strcasecmp(argv_[1].data(), kCPUSection.data()) == 0) {
info_section_ = kInfoCPU;
} else if (strcasecmp(argv_[1].data(), kReplicationSection.data()) == 0) {
info_section_ = kInfoReplication;
} else if (strcasecmp(argv_[1].data(), kKeyspaceSection.data()) == 0) {
info_section_ = kInfoKeyspace;
if (argc == 2) {
LogCommand();
return;
}
// info keyspace [ 0 | 1 | off ]
// info keyspace 1 db0,db1
// info keyspace 0 db0,db1
// info keyspace off db0,db1
if (argv_[2] == "1") {
if (g_pika_server->IsCompacting()) {
res_.SetRes(CmdRes::kErrOther, "The compact operation is executing, Try again later");
} else {
rescan_ = true;
}
} else if (argv_[2] == "off") {
off_ = true;
} else if (argv_[2] != "0") {
res_.SetRes(CmdRes::kSyntaxErr);
}
if (argc == 4) {
std::vector<std::string> dbs;
pstd::StringSplit(argv_[3], COMMA, dbs);
for (const auto& db : dbs) {
if (!g_pika_server->IsDBExist(db)) {
res_.SetRes(CmdRes::kInvalidDB, db);
return;
} else {
keyspace_scan_dbs_.insert(db);
}
}
} else {
keyspace_scan_dbs_ = g_pika_server->GetAllDBName();
}
LogCommand();
return;
} else if (strcasecmp(argv_[1].data(), kDataSection.data()) == 0) {
info_section_ = kInfoData;
} else if (strcasecmp(argv_[1].data(), kRocksDBSection.data()) == 0) {
info_section_ = kInfoRocksDB;
} else if (strcasecmp(argv_[1].data(), kDebugSection.data()) == 0) {
info_section_ = kInfoDebug;
} else if (strcasecmp(argv_[1].data(), kCommandStatsSection.data()) == 0) {
info_section_ = kInfoCommandStats;
} else if (strcasecmp(argv_[1].data(), kCacheSection.data()) == 0) {
info_section_ = kInfoCache;
} else {
info_section_ = kInfoErr;
}
if (argc != 2) {
res_.SetRes(CmdRes::kSyntaxErr);
}
}
void InfoCmd::Do(std::shared_ptr<Slot> slot) {
std::string info;
switch (info_section_) {
case kInfo:
InfoServer(info);
info.append("\r\n");
InfoData(info);
info.append("\r\n");
InfoClients(info);
info.append("\r\n");
InfoStats(info);
info.append("\r\n");
InfoCPU(info);
info.append("\r\n");
InfoReplication(info);
info.append("\r\n");
InfoKeyspace(info);
break;
case kInfoAll:
InfoServer(info);
info.append("\r\n");
InfoData(info);
info.append("\r\n");
InfoClients(info);
info.append("\r\n");
InfoStats(info);
info.append("\r\n");
InfoExecCount(info);
info.append("\r\n");
InfoCommandStats(info);
info.append("\r\n");
InfoCache(info, slot);
info.append("\r\n");
InfoCPU(info);
info.append("\r\n");
InfoReplication(info);
info.append("\r\n");
InfoKeyspace(info);
info.append("\r\n");
InfoRocksDB(info);
break;
case kInfoServer:
InfoServer(info);
break;
case kInfoClients:
InfoClients(info);
break;
case kInfoStats:
InfoStats(info);
break;
case kInfoExecCount:
InfoExecCount(info);
break;
case kInfoCPU:
InfoCPU(info);
break;
case kInfoReplication:
InfoReplication(info);
break;
case kInfoKeyspace:
InfoKeyspace(info);
break;
case kInfoData:
InfoData(info);
break;
case kInfoRocksDB:
InfoRocksDB(info);
break;
case kInfoDebug:
InfoDebug(info);
break;
case kInfoCommandStats:
InfoCommandStats(info);
break;
case kInfoCache:
InfoCache(info, slot);
break;
default:
// kInfoErr is nothing
break;
}
res_.AppendString(info);
}
void InfoCmd::InfoServer(std::string& info) {
static struct utsname host_info;
static bool host_info_valid = false;
if (!host_info_valid) {
uname(&host_info);
host_info_valid = true;
}