diff options
Diffstat (limited to 'caddyconfig/httpcaddyfile/httptype.go')
| -rw-r--r-- | caddyconfig/httpcaddyfile/httptype.go | 107 |
1 files changed, 104 insertions, 3 deletions
diff --git a/caddyconfig/httpcaddyfile/httptype.go b/caddyconfig/httpcaddyfile/httptype.go index f110958..4df5421 100644 --- a/caddyconfig/httpcaddyfile/httptype.go +++ b/caddyconfig/httpcaddyfile/httptype.go @@ -527,7 +527,11 @@ func (st *ServerType) serversFromPairings( } // tidy things up a bit - srv.TLSConnPolicies = consolidateConnPolicies(srv.TLSConnPolicies) + var err error + srv.TLSConnPolicies, err = consolidateConnPolicies(srv.TLSConnPolicies) + if err != nil { + return nil, fmt.Errorf("consolidating TLS connection policies for server %d: %v", i, err) + } srv.Routes = consolidateRoutes(srv.Routes) servers[fmt.Sprintf("srv%d", i)] = srv @@ -538,7 +542,7 @@ func (st *ServerType) serversFromPairings( // consolidateConnPolicies combines TLS connection policies that are the same, // for a cleaner overall output. -func consolidateConnPolicies(cps caddytls.ConnectionPolicies) caddytls.ConnectionPolicies { +func consolidateConnPolicies(cps caddytls.ConnectionPolicies) (caddytls.ConnectionPolicies, error) { for i := 0; i < len(cps); i++ { for j := 0; j < len(cps); j++ { if j == i { @@ -551,9 +555,106 @@ func consolidateConnPolicies(cps caddytls.ConnectionPolicies) caddytls.Connectio i-- break } + + // if they have the same matcher, try to reconcile each field: either they must + // be identical, or we have to be able to combine them safely + if reflect.DeepEqual(cps[i].MatchersRaw, cps[j].MatchersRaw) { + if len(cps[i].ALPN) > 0 && + len(cps[j].ALPN) > 0 && + !reflect.DeepEqual(cps[i].ALPN, cps[j].ALPN) { + return nil, fmt.Errorf("two policies with same match criteria have conflicting ALPN: %v vs. %v", + cps[i].ALPN, cps[j].ALPN) + } + if len(cps[i].CipherSuites) > 0 && + len(cps[j].CipherSuites) > 0 && + !reflect.DeepEqual(cps[i].CipherSuites, cps[j].CipherSuites) { + return nil, fmt.Errorf("two policies with same match criteria have conflicting cipher suites: %v vs. %v", + cps[i].CipherSuites, cps[j].CipherSuites) + } + if cps[i].ClientAuthentication == nil && + cps[j].ClientAuthentication != nil && + !reflect.DeepEqual(cps[i].ClientAuthentication, cps[j].ClientAuthentication) { + return nil, fmt.Errorf("two policies with same match criteria have conflicting client auth configuration: %+v vs. %+v", + cps[i].ClientAuthentication, cps[j].ClientAuthentication) + } + if len(cps[i].Curves) > 0 && + len(cps[j].Curves) > 0 && + !reflect.DeepEqual(cps[i].Curves, cps[j].Curves) { + return nil, fmt.Errorf("two policies with same match criteria have conflicting curves: %v vs. %v", + cps[i].Curves, cps[j].Curves) + } + if cps[i].DefaultSNI != "" && + cps[j].DefaultSNI != "" && + cps[i].DefaultSNI != cps[j].DefaultSNI { + return nil, fmt.Errorf("two policies with same match criteria have conflicting default SNI: %s vs. %s", + cps[i].DefaultSNI, cps[j].DefaultSNI) + } + if cps[i].ProtocolMin != "" && + cps[j].ProtocolMin != "" && + cps[i].ProtocolMin != cps[j].ProtocolMin { + return nil, fmt.Errorf("two policies with same match criteria have conflicting min protocol: %s vs. %s", + cps[i].ProtocolMin, cps[j].ProtocolMin) + } + if cps[i].ProtocolMax != "" && + cps[j].ProtocolMax != "" && + cps[i].ProtocolMax != cps[j].ProtocolMax { + return nil, fmt.Errorf("two policies with same match criteria have conflicting max protocol: %s vs. %s", + cps[i].ProtocolMax, cps[j].ProtocolMax) + } + if cps[i].CertSelection != nil && cps[j].CertSelection != nil { + // merging fields other than AnyTag is not implemented + if !reflect.DeepEqual(cps[i].CertSelection.SerialNumber, cps[j].CertSelection.SerialNumber) || + !reflect.DeepEqual(cps[i].CertSelection.SubjectOrganization, cps[j].CertSelection.SubjectOrganization) || + cps[i].CertSelection.PublicKeyAlgorithm != cps[j].CertSelection.PublicKeyAlgorithm || + !reflect.DeepEqual(cps[i].CertSelection.AllTags, cps[j].CertSelection.AllTags) { + return nil, fmt.Errorf("two policies with same match criteria have conflicting cert selections: %+v vs. %+v", + cps[i].CertSelection, cps[j].CertSelection) + } + } + + // by now we've decided that we can merge the two -- we'll keep i and drop j + + if len(cps[i].ALPN) == 0 && len(cps[j].ALPN) > 0 { + cps[i].ALPN = cps[j].ALPN + } + if len(cps[i].CipherSuites) == 0 && len(cps[j].CipherSuites) > 0 { + cps[i].CipherSuites = cps[j].CipherSuites + } + if cps[i].ClientAuthentication == nil && cps[j].ClientAuthentication != nil { + cps[i].ClientAuthentication = cps[j].ClientAuthentication + } + if len(cps[i].Curves) == 0 && len(cps[j].Curves) > 0 { + cps[i].Curves = cps[j].Curves + } + if cps[i].DefaultSNI == "" && cps[j].DefaultSNI != "" { + cps[i].DefaultSNI = cps[j].DefaultSNI + } + if cps[i].ProtocolMin == "" && cps[j].ProtocolMin != "" { + cps[i].ProtocolMin = cps[j].ProtocolMin + } + if cps[i].ProtocolMax == "" && cps[j].ProtocolMax != "" { + cps[i].ProtocolMax = cps[j].ProtocolMax + } + + if cps[i].CertSelection == nil && cps[j].CertSelection != nil { + // if j is the only one with a policy, move it over to i + cps[i].CertSelection = cps[j].CertSelection + } else if cps[i].CertSelection != nil && cps[j].CertSelection != nil { + // if both have one, then combine AnyTag + for _, tag := range cps[j].CertSelection.AnyTag { + if !sliceContains(cps[i].CertSelection.AnyTag, tag) { + cps[i].CertSelection.AnyTag = append(cps[i].CertSelection.AnyTag, tag) + } + } + } + + cps = append(cps[:j], cps[j+1:]...) + i-- + break + } } } - return cps + return cps, nil } // appendSubrouteToRouteList appends the routes in subroute |