package tls import ( "crypto/tls" "fmt" "strings" "github.com/containous/traefik/log" "github.com/sirupsen/logrus" ) const ( certificateHeader = "-----BEGIN CERTIFICATE-----\n" ) // ClientCA defines traefik CA files for a entryPoint // and it indicates if they are mandatory or have just to be analyzed if provided type ClientCA struct { Files FilesOrContents Optional bool } // TLS configures TLS for an entry point type TLS struct { MinVersion string `export:"true"` CipherSuites []string Certificates Certificates ClientCA ClientCA DefaultCertificate *Certificate SniStrict bool `export:"true"` } // FilesOrContents hold the CA we want to have in root type FilesOrContents []FileOrContent // Configuration allows mapping a TLS certificate to a list of entrypoints type Configuration struct { EntryPoints []string Certificate *Certificate } // String is the method to format the flag's value, part of the flag.Value interface. // The String method's output will be used in diagnostics. func (r *FilesOrContents) String() string { sliceOfString := make([]string, len([]FileOrContent(*r))) for key, value := range *r { sliceOfString[key] = value.String() } return strings.Join(sliceOfString, ",") } // Set is the method to set the flag value, part of the flag.Value interface. // Set's argument is a string to be parsed to set the flag. // It's a comma-separated list, so we split it. func (r *FilesOrContents) Set(value string) error { filesOrContents := strings.Split(value, ",") if len(filesOrContents) == 0 { return fmt.Errorf("bad FilesOrContents format: %s", value) } for _, fileOrContent := range filesOrContents { *r = append(*r, FileOrContent(fileOrContent)) } return nil } // Get return the FilesOrContents list func (r *FilesOrContents) Get() interface{} { return *r } // SetValue sets the FilesOrContents with val func (r *FilesOrContents) SetValue(val interface{}) { *r = val.(FilesOrContents) } // Type is type of the struct func (r *FilesOrContents) Type() string { return "filesorcontents" } // SortTLSPerEntryPoints converts TLS configuration sorted by Certificates into TLS configuration sorted by EntryPoints func SortTLSPerEntryPoints(configurations []*Configuration, epConfiguration map[string]map[string]*tls.Certificate, defaultEntryPoints []string) error { if epConfiguration == nil { epConfiguration = make(map[string]map[string]*tls.Certificate) } for _, conf := range configurations { if conf.EntryPoints == nil || len(conf.EntryPoints) == 0 { if log.GetLevel() >= logrus.DebugLevel { certName := conf.Certificate.CertFile.String() // Truncate certificate information only if it's a well formed certificate content with more than 50 characters if !conf.Certificate.CertFile.IsPath() && strings.HasPrefix(conf.Certificate.CertFile.String(), certificateHeader) && len(conf.Certificate.CertFile.String()) > len(certificateHeader)+50 { certName = strings.TrimPrefix(conf.Certificate.CertFile.String(), certificateHeader)[:50] } log.Debugf("No entryPoint is defined to add the certificate %s, it will be added to the default entryPoints: %s", certName, strings.Join(defaultEntryPoints, ", ")) } conf.EntryPoints = append(conf.EntryPoints, defaultEntryPoints...) } for _, ep := range conf.EntryPoints { if err := conf.Certificate.AppendCertificates(epConfiguration, ep); err != nil { return err } } } return nil }