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And make it actually work (#508)

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This commit is contained in:
Miek Gieben
2017-02-07 21:03:17 +00:00
committed by GitHub
parent fd4c5b5744
commit 89dc5720d0
2 changed files with 27 additions and 23 deletions
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42
middleware/proxy/google.go
View File

@@ -126,13 +126,7 @@ func (g *google) OnStartup(p *Proxy) error {
new, err := g.bootstrapProxy.Lookup(state, g.endpoint, dns.TypeA) new, err := g.bootstrapProxy.Lookup(state, g.endpoint, dns.TypeA)
oldUpstream := *p.Upstreams var oldUpstream Upstream
oldFrom := ""
var oldEx Exchanger
if len(oldUpstream) > 0 {
oldFrom = oldUpstream[0].From()
oldEx = oldUpstream[0].Exchanger()
}
// ignore errors here, as we want to keep on trying. // ignore errors here, as we want to keep on trying.
if err != nil { if err != nil {
@@ -143,8 +137,13 @@ func (g *google) OnStartup(p *Proxy) error {
log.Printf("[WARNING] Failed to bootstrap A records %q: %s", g.endpoint, err) log.Printf("[WARNING] Failed to bootstrap A records %q: %s", g.endpoint, err)
} }
up := newUpstream(addrs, oldFrom, oldEx) if len(*p.Upstreams) > 0 {
p.Upstreams = &[]Upstream{up} oldUpstream = (*p.Upstreams)[0]
up := newUpstream(addrs, oldUpstream.(*staticUpstream))
p.Upstreams = &[]Upstream{up}
} else {
log.Printf("[WARNING] Failed to bootstrap upstreams %q", g.endpoint)
}
} }
go func() { go func() {
@@ -164,8 +163,11 @@ func (g *google) OnStartup(p *Proxy) error {
continue continue
} }
up := newUpstream(addrs, oldFrom, oldEx) // TODO(miek): can this actually happen?
p.Upstreams = &[]Upstream{up} if oldUpstream != nil {
up := newUpstream(addrs, oldUpstream.(*staticUpstream))
p.Upstreams = &[]Upstream{up}
}
} }
case <-g.quit: case <-g.quit:
@@ -195,15 +197,17 @@ func extractAnswer(m *dns.Msg) ([]string, error) {
} }
// newUpstream returns an upstream initialized with hosts. // newUpstream returns an upstream initialized with hosts.
func newUpstream(hosts []string, from string, ex Exchanger) Upstream { func newUpstream(hosts []string, old *staticUpstream) Upstream {
upstream := &staticUpstream{ upstream := &staticUpstream{
from: from, from: old.from,
Hosts: nil, Hosts: nil,
Policy: &Random{}, Policy: &Random{},
Spray: nil, Spray: nil,
FailTimeout: 10 * time.Second, FailTimeout: 10 * time.Second,
MaxFails: 3, MaxFails: 3,
ex: ex, ex: old.ex,
WithoutPathPrefix: old.WithoutPathPrefix,
IgnoredSubDomains: old.IgnoredSubDomains,
} }
upstream.Hosts = make([]*UpstreamHost, len(hosts)) upstream.Hosts = make([]*UpstreamHost, len(hosts))

8
middleware/proxy/upstream.go
View File

@@ -281,11 +281,11 @@ func (u *staticUpstream) Select() *UpstreamHost {
} }
func (u *staticUpstream) IsAllowedDomain(name string) bool { func (u *staticUpstream) IsAllowedDomain(name string) bool {
for _, ignoredSubDomain := range u.IgnoredSubDomains { if dns.Name(name) == dns.Name(u.From()) {
if dns.Name(name) == dns.Name(u.From()) { return true
return true }
}
for _, ignoredSubDomain := range u.IgnoredSubDomains {
if middleware.Name(ignoredSubDomain).Matches(name) { if middleware.Name(ignoredSubDomain).Matches(name) {
return false return false
} }