1Panel/backend/utils/nginx/components/upstream.go

95 lines
2.2 KiB
Go

package components
import (
"errors"
)
type Upstream struct {
UpstreamName string
UpstreamServers []*UpstreamServer
Directives []IDirective
Comment string
}
func (us *Upstream) GetName() string {
return "upstream"
}
func (us *Upstream) GetParameters() []string {
return []string{us.UpstreamName}
}
func (us *Upstream) GetBlock() IBlock {
return us
}
func (us *Upstream) GetComment() string {
return us.Comment
}
func (us *Upstream) GetDirectives() []IDirective {
directives := make([]IDirective, 0)
directives = append(directives, us.Directives...)
for _, uss := range us.UpstreamServers {
directives = append(directives, uss)
}
return directives
}
func NewUpstream(directive IDirective) (*Upstream, error) {
parameters := directive.GetParameters()
us := &Upstream{
UpstreamName: parameters[0],
}
if block := directive.GetBlock(); block != nil {
us.Comment = block.GetComment()
for _, d := range block.GetDirectives() {
if d.GetName() == "server" {
us.UpstreamServers = append(us.UpstreamServers, NewUpstreamServer(d))
} else {
us.Directives = append(us.Directives, d)
}
}
return us, nil
}
return nil, errors.New("missing upstream block")
}
func (us *Upstream) AddServer(server *UpstreamServer) {
us.UpstreamServers = append(us.UpstreamServers, server)
}
func (us *Upstream) FindDirectives(directiveName string) []IDirective {
directives := make([]IDirective, 0)
for _, directive := range us.Directives {
if directive.GetName() == directiveName {
directives = append(directives, directive)
}
if directive.GetBlock() != nil {
directives = append(directives, directive.GetBlock().FindDirectives(directiveName)...)
}
}
return directives
}
func (us *Upstream) UpdateDirectives(directiveName string, directive Directive) {
directives := make([]IDirective, 0)
for _, dir := range us.GetDirectives() {
if dir.GetName() == directiveName {
directives = append(directives, &directive)
} else {
directives = append(directives, dir)
}
}
us.Directives = directives
}
func (us *Upstream) AddDirectives(directive Directive) {
directives := append(us.GetDirectives(), &directive)
us.Directives = directives
}