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			301 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			301 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package models
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import (
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	"encoding/json"
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	"errors"
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	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
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	_ "github.com/go-sql-driver/mysql"
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	"github.com/iwind/TeaGo/Tea"
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	"github.com/iwind/TeaGo/dbs"
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	"github.com/iwind/TeaGo/maps"
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	"github.com/iwind/TeaGo/types"
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)
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const (
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	ReverseProxyStateEnabled  = 1 // 已启用
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	ReverseProxyStateDisabled = 0 // 已禁用
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)
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type ReverseProxyDAO dbs.DAO
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func NewReverseProxyDAO() *ReverseProxyDAO {
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	return dbs.NewDAO(&ReverseProxyDAO{
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		DAOObject: dbs.DAOObject{
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			DB:     Tea.Env,
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			Table:  "edgeReverseProxies",
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			Model:  new(ReverseProxy),
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			PkName: "id",
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		},
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	}).(*ReverseProxyDAO)
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}
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var SharedReverseProxyDAO *ReverseProxyDAO
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func init() {
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	dbs.OnReady(func() {
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		SharedReverseProxyDAO = NewReverseProxyDAO()
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	})
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}
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// 初始化
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func (this *ReverseProxyDAO) Init() {
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	_ = this.DAOObject.Init()
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}
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// 启用条目
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func (this *ReverseProxyDAO) EnableReverseProxy(tx *dbs.Tx, id int64) error {
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	_, err := this.Query(tx).
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		Pk(id).
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		Set("state", ReverseProxyStateEnabled).
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		Update()
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	if err != nil {
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		return err
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	}
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	return this.NotifyUpdate(tx, id)
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}
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// 禁用条目
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func (this *ReverseProxyDAO) DisableReverseProxy(tx *dbs.Tx, id int64) error {
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	_, err := this.Query(tx).
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		Pk(id).
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		Set("state", ReverseProxyStateDisabled).
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		Update()
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	if err != nil {
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		return err
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	}
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	return this.NotifyUpdate(tx, id)
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}
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// 查找启用中的条目
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func (this *ReverseProxyDAO) FindEnabledReverseProxy(tx *dbs.Tx, id int64) (*ReverseProxy, error) {
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	result, err := this.Query(tx).
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		Pk(id).
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		Attr("state", ReverseProxyStateEnabled).
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		Find()
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	if result == nil {
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		return nil, err
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	}
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	return result.(*ReverseProxy), err
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}
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// 根据iD组合配置
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func (this *ReverseProxyDAO) ComposeReverseProxyConfig(tx *dbs.Tx, reverseProxyId int64) (*serverconfigs.ReverseProxyConfig, error) {
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	reverseProxy, err := this.FindEnabledReverseProxy(tx, reverseProxyId)
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	if err != nil {
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		return nil, err
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	}
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	if reverseProxy == nil {
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		return nil, nil
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	}
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	config := &serverconfigs.ReverseProxyConfig{}
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	config.Id = int64(reverseProxy.Id)
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	config.IsOn = reverseProxy.IsOn == 1
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	config.RequestHostType = types.Int8(reverseProxy.RequestHostType)
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	config.RequestHost = reverseProxy.RequestHost
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	config.RequestURI = reverseProxy.RequestURI
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	config.StripPrefix = reverseProxy.StripPrefix
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	config.AutoFlush = reverseProxy.AutoFlush == 1
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	schedulingConfig := &serverconfigs.SchedulingConfig{}
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	if len(reverseProxy.Scheduling) > 0 && reverseProxy.Scheduling != "null" {
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		err = json.Unmarshal([]byte(reverseProxy.Scheduling), schedulingConfig)
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		if err != nil {
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			return nil, err
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		}
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		config.Scheduling = schedulingConfig
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	}
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	if len(reverseProxy.PrimaryOrigins) > 0 && reverseProxy.PrimaryOrigins != "null" {
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		originRefs := []*serverconfigs.OriginRef{}
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		err = json.Unmarshal([]byte(reverseProxy.PrimaryOrigins), &originRefs)
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		if err != nil {
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			return nil, err
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		}
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		for _, ref := range originRefs {
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			originConfig, err := SharedOriginDAO.ComposeOriginConfig(tx, ref.OriginId)
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			if err != nil {
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				return nil, err
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			}
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			if originConfig != nil {
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				config.AddPrimaryOrigin(originConfig)
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			}
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		}
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	}
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	if len(reverseProxy.BackupOrigins) > 0 && reverseProxy.BackupOrigins != "null" {
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		originRefs := []*serverconfigs.OriginRef{}
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		err = json.Unmarshal([]byte(reverseProxy.BackupOrigins), &originRefs)
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		if err != nil {
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			return nil, err
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		}
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		for _, originConfig := range originRefs {
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			originConfig, err := SharedOriginDAO.ComposeOriginConfig(tx, originConfig.OriginId)
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			if err != nil {
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				return nil, err
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			}
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			if originConfig != nil {
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				config.AddBackupOrigin(originConfig)
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			}
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		}
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	}
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	// add headers
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	if IsNotNull(reverseProxy.AddHeaders) {
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		addHeaders := []string{}
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		err = json.Unmarshal([]byte(reverseProxy.AddHeaders), &addHeaders)
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		if err != nil {
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			return nil, err
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		}
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		config.AddHeaders = addHeaders
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	}
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	return config, nil
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}
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// 创建反向代理
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func (this *ReverseProxyDAO) CreateReverseProxy(tx *dbs.Tx, adminId int64, userId int64, schedulingJSON []byte, primaryOriginsJSON []byte, backupOriginsJSON []byte) (int64, error) {
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	op := NewReverseProxyOperator()
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	op.IsOn = true
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	op.State = ReverseProxyStateEnabled
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	op.AdminId = adminId
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	op.UserId = userId
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	defaultHeaders := []string{"X-Real-IP", "X-Forwarded-For", "X-Forwarded-By", "X-Forwarded-Host", "X-Forwarded-Proto"}
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	defaultHeadersJSON, err := json.Marshal(defaultHeaders)
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	if err != nil {
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		return 0, err
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	}
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	op.AddHeaders = defaultHeadersJSON
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	if len(schedulingJSON) > 0 {
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		op.Scheduling = string(schedulingJSON)
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	}
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	if len(primaryOriginsJSON) > 0 {
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		op.PrimaryOrigins = string(primaryOriginsJSON)
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	}
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	if len(backupOriginsJSON) > 0 {
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		op.BackupOrigins = string(backupOriginsJSON)
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	}
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	err = this.Save(tx, op)
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	if err != nil {
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		return 0, err
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	}
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	return types.Int64(op.Id), nil
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}
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// 修改反向代理调度算法
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func (this *ReverseProxyDAO) UpdateReverseProxyScheduling(tx *dbs.Tx, reverseProxyId int64, schedulingJSON []byte) error {
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	if reverseProxyId <= 0 {
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		return errors.New("invalid reverseProxyId")
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	}
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	op := NewReverseProxyOperator()
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	op.Id = reverseProxyId
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	if len(schedulingJSON) > 0 {
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		op.Scheduling = string(schedulingJSON)
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	} else {
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		op.Scheduling = "null"
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	}
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	err := this.Save(tx, op)
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	if err != nil {
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		return err
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	}
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	return this.NotifyUpdate(tx, reverseProxyId)
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}
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// 修改主要源站
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func (this *ReverseProxyDAO) UpdateReverseProxyPrimaryOrigins(tx *dbs.Tx, reverseProxyId int64, origins []byte) error {
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	if reverseProxyId <= 0 {
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		return errors.New("invalid reverseProxyId")
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	}
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	op := NewReverseProxyOperator()
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	op.Id = reverseProxyId
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	if len(origins) > 0 {
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		op.PrimaryOrigins = origins
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	} else {
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		op.PrimaryOrigins = "[]"
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	}
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	err := this.Save(tx, op)
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	if err != nil {
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		return err
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	}
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	return this.NotifyUpdate(tx, reverseProxyId)
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}
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// 修改备用源站
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func (this *ReverseProxyDAO) UpdateReverseProxyBackupOrigins(tx *dbs.Tx, reverseProxyId int64, origins []byte) error {
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	if reverseProxyId <= 0 {
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		return errors.New("invalid reverseProxyId")
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	}
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	op := NewReverseProxyOperator()
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	op.Id = reverseProxyId
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	if len(origins) > 0 {
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		op.BackupOrigins = origins
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	} else {
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		op.BackupOrigins = "[]"
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	}
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	err := this.Save(tx, op)
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	if err != nil {
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		return err
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	}
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	return this.NotifyUpdate(tx, reverseProxyId)
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}
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// 修改是否启用
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func (this *ReverseProxyDAO) UpdateReverseProxy(tx *dbs.Tx, reverseProxyId int64, requestHostType int8, requestHost string, requestURI string, stripPrefix string, autoFlush bool, addHeaders []string) error {
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	if reverseProxyId <= 0 {
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		return errors.New("invalid reverseProxyId")
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	}
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	op := NewReverseProxyOperator()
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	op.Id = reverseProxyId
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	if requestHostType < 0 {
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		requestHostType = 0
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	}
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	op.RequestHostType = requestHostType
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	op.RequestHost = requestHost
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	op.RequestURI = requestURI
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	op.StripPrefix = stripPrefix
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	op.AutoFlush = autoFlush
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	if len(addHeaders) == 0 {
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		addHeaders = []string{}
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	}
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	addHeadersJSON, err := json.Marshal(addHeaders)
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	if err != nil {
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		return err
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	}
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	op.AddHeaders = addHeadersJSON
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	err = this.Save(tx, op)
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	if err != nil {
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		return err
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	}
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	return this.NotifyUpdate(tx, reverseProxyId)
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}
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// 查找包含某个源站的反向代理ID
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func (this *ReverseProxyDAO) FindReverseProxyContainsOriginId(tx *dbs.Tx, originId int64) (int64, error) {
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	return this.Query(tx).
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		ResultPk().
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		Where("(JSON_CONTAINS(primaryOrigins, :jsonQuery) OR JSON_CONTAINS(backupOrigins, :jsonQuery))").
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		Param("jsonQuery", maps.Map{
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			"originId": originId,
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		}.AsJSON()).
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		FindInt64Col(0)
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}
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// 通知更新
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func (this *ReverseProxyDAO) NotifyUpdate(tx *dbs.Tx, reverseProxyId int64) error {
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	serverId, err := SharedServerDAO.FindEnabledServerIdWithReverseProxyId(tx, reverseProxyId)
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	if err != nil {
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		return err
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	}
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	if serverId > 0 {
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		return SharedServerDAO.NotifyUpdate(tx, serverId)
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	}
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	return nil
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}
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