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SecurityHandler.go
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SecurityHandler.go
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// Cloud Driver Interface of CB-Spider.
// The CB-Spider is a sub-Framework of the Cloud-Barista Multi-Cloud Project.
// The CB-Spider Mission is to connect all the clouds with a single interface.
//
// * Cloud-Barista: https://github.com/cloud-barista
//
// This is Mock Driver.
//
// by CB-Spider Team, 2020.10.
package resources
import (
"fmt"
"sync"
cblog "github.com/cloud-barista/cb-log"
irs "github.com/cloud-barista/cb-spider/cloud-control-manager/cloud-driver/interfaces/resources"
)
var securityInfoMap map[string][]*irs.SecurityInfo
type MockSecurityHandler struct {
MockName string
}
func init() {
// cblog is a global variable.
securityInfoMap = make(map[string][]*irs.SecurityInfo)
}
var sgMapLock = new(sync.RWMutex)
// (1) create securityInfo object
// (2) insert securityInfo into global Map
func (securityHandler *MockSecurityHandler) CreateSecurity(securityReqInfo irs.SecurityReqInfo) (irs.SecurityInfo, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called CreateSecurity()!")
mockName := securityHandler.MockName
securityReqInfo.IId.SystemId = securityReqInfo.IId.NameId
securityReqInfo.VpcIID.SystemId = securityReqInfo.VpcIID.NameId
// (1) create securityInfo object
securityInfo := irs.SecurityInfo{securityReqInfo.IId,
securityReqInfo.VpcIID,
// deprecated; securityReqInfo.Direction,
securityReqInfo.SecurityRules,
nil}
// (2) insert SecurityInfo into global Map
sgMapLock.Lock()
defer sgMapLock.Unlock()
infoList, _ := securityInfoMap[mockName]
infoList = append(infoList, &securityInfo)
securityInfoMap[mockName] = infoList
return CloneSecurityInfo(securityInfo), nil
}
func CloneSecurityInfoList(srcInfoList []*irs.SecurityInfo) []*irs.SecurityInfo {
clonedInfoList := []*irs.SecurityInfo{}
for _, srcInfo := range srcInfoList {
clonedInfo := CloneSecurityInfo(*srcInfo)
clonedInfoList = append(clonedInfoList, &clonedInfo)
}
return clonedInfoList
}
func CloneSecurityInfo(srcInfo irs.SecurityInfo) irs.SecurityInfo {
/*
type SecurityInfo struct {
IId IID // {NameId, SystemId}
VpcIID IID // {NameId, SystemId}
Direction string // @todo userd??
SecurityRules *[]SecurityRuleInfo
KeyValueList []KeyValue
}
*/
// clone SecurityInfo
clonedInfo := irs.SecurityInfo{
IId: irs.IID{srcInfo.IId.NameId, srcInfo.IId.SystemId},
VpcIID: irs.IID{srcInfo.VpcIID.NameId, srcInfo.VpcIID.SystemId},
// deprecated; Direction: srcInfo.Direction,
// Need not clone
SecurityRules: srcInfo.SecurityRules,
KeyValueList: srcInfo.KeyValueList,
}
return clonedInfo
}
func (securityHandler *MockSecurityHandler) ListSecurity() ([]*irs.SecurityInfo, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called ListSecurity()!")
mockName := securityHandler.MockName
sgMapLock.RLock()
defer sgMapLock.RUnlock()
infoList, ok := securityInfoMap[mockName]
if !ok {
return []*irs.SecurityInfo{}, nil
}
return CloneSecurityInfoList(infoList), nil
}
func (securityHandler *MockSecurityHandler) GetSecurity(iid irs.IID) (irs.SecurityInfo, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called GetSecurity()!")
sgMapLock.RLock()
defer sgMapLock.RUnlock()
mockName := securityHandler.MockName
infoList, ok := securityInfoMap[mockName]
if !ok {
return irs.SecurityInfo{}, fmt.Errorf("%s SecurityGroup does not exist!!", iid.NameId)
}
// infoList is already cloned in ListSecurity()
for _, info := range infoList {
if info.IId.NameId == iid.NameId {
return CloneSecurityInfo(*info), nil
}
}
return irs.SecurityInfo{}, fmt.Errorf("%s SecurityGroup does not exist!!", iid.NameId)
}
func (securityHandler *MockSecurityHandler) DeleteSecurity(iid irs.IID) (bool, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called DeleteSecurity()!")
sgMapLock.Lock()
defer sgMapLock.Unlock()
mockName := securityHandler.MockName
infoList, ok := securityInfoMap[mockName]
if !ok {
return false, fmt.Errorf("%s SecurityGroup does not exist!!", iid.NameId)
}
for idx, info := range infoList {
if info.IId.SystemId == iid.SystemId {
infoList = append(infoList[:idx], infoList[idx+1:]...)
securityInfoMap[mockName] = infoList
return true, nil
}
}
return false, nil
}
func (securityHandler *MockSecurityHandler) AddRules(sgIID irs.IID, securityRules *[]irs.SecurityRuleInfo) (irs.SecurityInfo, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called AddRules()!")
sgMapLock.Lock()
defer sgMapLock.Unlock()
mockName := securityHandler.MockName
infoList, ok := securityInfoMap[mockName]
if !ok {
return irs.SecurityInfo{}, fmt.Errorf("%s SecurityGroup does not exist!!", sgIID.NameId)
}
// check if all input rules exist
for _, info := range infoList {
if info.IId.NameId == sgIID.NameId {
for _, reqRuleInfo := range *securityRules {
for _, ruleInfo := range *info.SecurityRules {
if isEqualRule(&ruleInfo, &reqRuleInfo) {
errMSG := fmt.Sprintf("%s SecurityGroup already has this rule: %v!!", sgIID.NameId, reqRuleInfo)
errMSG += fmt.Sprintf(" #### %s SecurityGroup has %v!!", sgIID.NameId, *info.SecurityRules)
return irs.SecurityInfo{}, fmt.Errorf(errMSG)
}
}
}
}
}
// Add all rules
for _, info := range infoList {
if info.IId.NameId == sgIID.NameId {
*info.SecurityRules = append(*info.SecurityRules, *securityRules...)
return CloneSecurityInfo(*info), nil
}
}
return irs.SecurityInfo{}, fmt.Errorf("%s SecurityGroup does not exist!!", sgIID.NameId)
}
func (securityHandler *MockSecurityHandler) RemoveRules(sgIID irs.IID, securityRules *[]irs.SecurityRuleInfo) (bool, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called RemoveRules()!")
sgMapLock.Lock()
defer sgMapLock.Unlock()
mockName := securityHandler.MockName
infoList, ok := securityInfoMap[mockName]
if !ok {
return false, fmt.Errorf("%s SecurityGroup does not exist!!", sgIID.NameId)
}
// check if all input rules do not exist
for _, info := range infoList {
if info.IId.NameId == sgIID.NameId {
for _, reqRuleInfo := range *securityRules {
existFlag := false
for _, ruleInfo := range *info.SecurityRules {
if isEqualRule(&ruleInfo, &reqRuleInfo) {
existFlag = true
}
}
if !existFlag {
errMSG := fmt.Sprintf("%s SecurityGroup does not have this rule: %v!!", sgIID.NameId, reqRuleInfo)
errMSG += fmt.Sprintf(" #### %s SecurityGroup has %v!!", sgIID.NameId, *info.SecurityRules)
return false, fmt.Errorf(errMSG)
}
}
}
}
for _, info := range infoList {
if (*info).IId.NameId == sgIID.NameId {
for idx, ruleInfo := range *info.SecurityRules {
for _, reqRuleInfo := range *securityRules {
if isEqualRule(&ruleInfo, &reqRuleInfo) {
*info.SecurityRules = removeRule(info.SecurityRules, idx)
//return true, nil
}
}
}
}
}
return true, nil
}
func isEqualRule(a *irs.SecurityRuleInfo, b *irs.SecurityRuleInfo) bool {
/*------------------------------
type SecurityRuleInfo struct {
Direction string
IPProtocol string
FromPort string
ToPort string
CIDR string
}
-------------------------------*/
if a.Direction != b.Direction {
return false
}
if a.IPProtocol != b.IPProtocol {
return false
}
if a.FromPort != b.FromPort {
return false
}
if a.ToPort != b.ToPort {
return false
}
if a.CIDR != b.CIDR {
return false
}
return true
}
func removeRule(list *[]irs.SecurityRuleInfo, idx int) []irs.SecurityRuleInfo {
return append((*list)[:idx], (*list)[idx+1:]...)
}