package api import ( "fmt" "mime" "path/filepath" "sort" "strings" "github.com/Sirupsen/logrus" "github.com/docker/docker/api/types" "github.com/docker/docker/pkg/system" "github.com/docker/docker/pkg/version" "github.com/docker/libtrust" ) // Common constants for daemon and client. const ( // Version of Current REST API Version version.Version = "1.21" // MinVersion represents Minimun REST API version supported MinVersion version.Version = "1.12" // DefaultDockerfileName is the Default filename with Docker commands, read by docker build DefaultDockerfileName string = "Dockerfile" ) // byPrivatePort is temporary type used to sort types.Port by PrivatePort type byPrivatePort []types.Port func (r byPrivatePort) Len() int { return len(r) } func (r byPrivatePort) Swap(i, j int) { r[i], r[j] = r[j], r[i] } func (r byPrivatePort) Less(i, j int) bool { return r[i].PrivatePort < r[j].PrivatePort } // DisplayablePorts returns formatted string representing open ports of container // e.g. "0.0.0.0:80->9090/tcp, 9988/tcp" // it's used by command 'docker ps' func DisplayablePorts(ports []types.Port) string { var ( result = []string{} hostMappings = []string{} firstInGroupMap map[string]int lastInGroupMap map[string]int ) firstInGroupMap = make(map[string]int) lastInGroupMap = make(map[string]int) sort.Sort(byPrivatePort(ports)) for _, port := range ports { var ( current = port.PrivatePort portKey = port.Type firstInGroup int lastInGroup int ) if port.IP != "" { if port.PublicPort != current { hostMappings = append(hostMappings, fmt.Sprintf("%s:%d->%d/%s", port.IP, port.PublicPort, port.PrivatePort, port.Type)) continue } portKey = fmt.Sprintf("%s/%s", port.IP, port.Type) } firstInGroup = firstInGroupMap[portKey] lastInGroup = lastInGroupMap[portKey] if firstInGroup == 0 { firstInGroupMap[portKey] = current lastInGroupMap[portKey] = current continue } if current == (lastInGroup + 1) { lastInGroupMap[portKey] = current continue } result = append(result, formGroup(portKey, firstInGroup, lastInGroup)) firstInGroupMap[portKey] = current lastInGroupMap[portKey] = current } for portKey, firstInGroup := range firstInGroupMap { result = append(result, formGroup(portKey, firstInGroup, lastInGroupMap[portKey])) } result = append(result, hostMappings...) return strings.Join(result, ", ") } func formGroup(key string, start, last int) string { var ( group string parts = strings.Split(key, "/") groupType = parts[0] ip = "" ) if len(parts) > 1 { ip = parts[0] groupType = parts[1] } if start == last { group = fmt.Sprintf("%d", start) } else { group = fmt.Sprintf("%d-%d", start, last) } if ip != "" { group = fmt.Sprintf("%s:%s->%s", ip, group, group) } return fmt.Sprintf("%s/%s", group, groupType) } // MatchesContentType validates the content type against the expected one func MatchesContentType(contentType, expectedType string) bool { mimetype, _, err := mime.ParseMediaType(contentType) if err != nil { logrus.Errorf("Error parsing media type: %s error: %v", contentType, err) } return err == nil && mimetype == expectedType } // LoadOrCreateTrustKey attempts to load the libtrust key at the given path, // otherwise generates a new one func LoadOrCreateTrustKey(trustKeyPath string) (libtrust.PrivateKey, error) { err := system.MkdirAll(filepath.Dir(trustKeyPath), 0700) if err != nil { return nil, err } trustKey, err := libtrust.LoadKeyFile(trustKeyPath) if err == libtrust.ErrKeyFileDoesNotExist { trustKey, err = libtrust.GenerateECP256PrivateKey() if err != nil { return nil, fmt.Errorf("Error generating key: %s", err) } if err := libtrust.SaveKey(trustKeyPath, trustKey); err != nil { return nil, fmt.Errorf("Error saving key file: %s", err) } } else if err != nil { return nil, fmt.Errorf("Error loading key file %s: %s", trustKeyPath, err) } return trustKey, nil }