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don't remove outbounds if the a provider fails

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This commit is contained in:
jebbs 2022-10-16 08:39:40 +08:00
parent 22b79b297f
commit 2da163d59b
1 changed files with 33 additions and 34 deletions
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57
service/subscription.go
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@ -64,10 +64,9 @@ func NewSubscription(ctx context.Context, router adapter.Router, logger log.Cont
exclude *regexp.Regexp
include *regexp.Regexp
)
if p.Tag != "" {
tag = p.Tag
} else {
tag = F.ToString(i)
// required for outbounds clean up
if p.Tag == "" {
return nil, E.New("tag of provider [", i, "] is required")
}
if p.URL == "" {
return nil, E.New("missing URL for provider [", tag, "]")
@ -117,7 +116,7 @@ func NewSubscription(ctx context.Context, router adapter.Router, logger log.Cont
// Start starts the service.
func (s *Subscription) Start() error {
go s.fetchLoop()
go s.refreshLoop()
return nil
}
@ -129,7 +128,7 @@ func (s *Subscription) Close() error {
return nil
}
func (s *Subscription) fetchLoop() {
func (s *Subscription) refreshLoop() {
ticker := time.NewTicker(s.interval)
defer ticker.Stop()
@ -146,16 +145,26 @@ L:
}
func (s *Subscription) refresh() {
opts, err := s.fetch()
client, err := s.client()
if err != nil {
s.logger.Error("fetch subscription: ", err)
s.logger.Error("client: ", err)
}
// outbounds before refresh
outbounds := s.router.Outbounds()
for _, provider := range s.providers {
opts, err := s.fetch(client, provider)
if err != nil {
s.logger.Warn("fetch provider [", provider.tag, "]: ", err)
continue
}
s.logger.Info(len(opts), " links found from provider [", provider.tag, "]")
s.updateOutbounds(provider, opts, outbounds)
}
s.updateOutbounds(opts)
}
func (s *Subscription) updateOutbounds(opts []*option.Outbound) {
outbounds := s.router.Outbounds()
func (s *Subscription) updateOutbounds(provider *subscriptionProvider, opts []*option.Outbound, outbounds []adapter.Outbound) {
knownOutbounds := make(map[string]struct{})
removeCount := 0
for _, opt := range opts {
tag := opt.Tag
knownOutbounds[tag] = struct{}{}
@ -172,7 +181,7 @@ func (s *Subscription) updateOutbounds(opts []*option.Outbound) {
s.logger.Info("created outbound [", tag, "]")
}
// remove outbounds that are not in the latest list
tagPrefix := s.tag + "."
tagPrefix := s.tag + "." + provider.tag
for _, outbound := range outbounds {
tag := outbound.Tag()
if !strings.HasPrefix(tag, tagPrefix) {
@ -181,29 +190,20 @@ func (s *Subscription) updateOutbounds(opts []*option.Outbound) {
if _, ok := knownOutbounds[tag]; ok {
continue
}
removeCount++
s.router.RemoveOutbound(tag)
}
if removeCount > 0 {
s.logger.Info(removeCount, " outbounds removed for [", tagPrefix, "]")
}
}
func (s *Subscription) fetch() ([]*option.Outbound, error) {
client, err := s.client()
func (s *Subscription) fetch(client *http.Client, provider *subscriptionProvider) ([]*option.Outbound, error) {
opts := make([]*option.Outbound, 0)
links, err := s.fetchProvider(client, provider)
if err != nil {
return nil, err
}
opts := make([]*option.Outbound, 0)
for i, provider := range s.providers {
var tag string
if provider.tag != "" {
tag = provider.tag
} else {
tag = F.ToString(i)
}
links, err := s.fetchProvider(client, provider)
if err != nil {
s.logger.Warn("fetch provider [", tag, "]: ", err)
continue
}
s.logger.Info(len(links), " links found from provider [", tag, "]")
for _, link := range links {
opt := link.Options()
if !selectedByTag(opt.Tag, provider) {
@ -212,7 +212,6 @@ func (s *Subscription) fetch() ([]*option.Outbound, error) {
s.applyOptions(opt, provider)
opts = append(opts, opt)
}
}
return opts, nil
}