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systeminfo.go
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systeminfo.go
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// Copyright 2018 Project Harbor Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package api
import (
"io/ioutil"
"net/http"
"os"
"strings"
"sync"
"github.com/goharbor/harbor/src/common"
"github.com/goharbor/harbor/src/common/dao"
clairdao "github.com/goharbor/harbor/src/common/dao/clair"
"github.com/goharbor/harbor/src/common/models"
"github.com/goharbor/harbor/src/common/utils"
"github.com/goharbor/harbor/src/common/utils/clair"
"github.com/goharbor/harbor/src/common/utils/log"
"github.com/goharbor/harbor/src/core/config"
"github.com/goharbor/harbor/src/core/systeminfo"
"github.com/goharbor/harbor/src/core/systeminfo/imagestorage"
)
// SystemInfoAPI handle requests for getting system info /api/systeminfo
type SystemInfoAPI struct {
BaseController
}
const defaultRootCert = "/etc/core/ca/ca.crt"
const harborVersionFile = "/harbor/UIVERSION"
// SystemInfo models for system info.
type SystemInfo struct {
HarborStorage Storage `json:"storage"`
}
// Storage models for storage.
type Storage struct {
Total uint64 `json:"total"`
Free uint64 `json:"free"`
}
// namespaces stores all name spaces on Clair, it should be initialised only once.
type clairNamespaces struct {
sync.RWMutex
l []string
clair *clair.Client
}
func (n *clairNamespaces) get() ([]string, error) {
n.Lock()
defer n.Unlock()
if len(n.l) == 0 {
m := make(map[string]struct{})
if n.clair == nil {
n.clair = clair.NewClient(config.ClairEndpoint(), nil)
}
list, err := n.clair.ListNamespaces()
if err != nil {
return n.l, err
}
for _, n := range list {
ns := strings.Split(n, ":")[0]
m[ns] = struct{}{}
}
for k := range m {
n.l = append(n.l, k)
}
}
return n.l, nil
}
var (
namespaces = &clairNamespaces{}
)
// GeneralInfo wraps common systeminfo for anonymous request
type GeneralInfo struct {
WithNotary bool `json:"with_notary"`
WithClair bool `json:"with_clair"`
WithAdmiral bool `json:"with_admiral"`
AdmiralEndpoint string `json:"admiral_endpoint"`
AuthMode string `json:"auth_mode"`
RegistryURL string `json:"registry_url"`
ProjectCreationRestrict string `json:"project_creation_restriction"`
SelfRegistration bool `json:"self_registration"`
HasCARoot bool `json:"has_ca_root"`
HarborVersion string `json:"harbor_version"`
ClairVulnStatus *models.ClairVulnerabilityStatus `json:"clair_vulnerability_status,omitempty"`
RegistryStorageProviderName string `json:"registry_storage_provider_name"`
ReadOnly bool `json:"read_only"`
WithChartMuseum bool `json:"with_chartmuseum"`
}
// validate for validating user if an admin.
func (sia *SystemInfoAPI) validate() {
if !sia.SecurityCtx.IsAuthenticated() {
sia.HandleUnauthorized()
sia.StopRun()
}
if !sia.SecurityCtx.IsSysAdmin() {
sia.HandleForbidden(sia.SecurityCtx.GetUsername())
sia.StopRun()
}
}
// GetVolumeInfo gets specific volume storage info.
func (sia *SystemInfoAPI) GetVolumeInfo() {
sia.validate()
systeminfo.Init()
capacity, err := imagestorage.GlobalDriver.Cap()
if err != nil {
log.Errorf("failed to get capacity: %v", err)
sia.CustomAbort(http.StatusInternalServerError, http.StatusText(http.StatusInternalServerError))
}
systemInfo := SystemInfo{
HarborStorage: Storage{
Total: capacity.Total,
Free: capacity.Free,
},
}
sia.Data["json"] = systemInfo
sia.ServeJSON()
}
// GetCert gets default self-signed certificate.
func (sia *SystemInfoAPI) GetCert() {
if _, err := os.Stat(defaultRootCert); err == nil {
sia.Ctx.Output.Header("Content-Type", "application/octet-stream")
sia.Ctx.Output.Header("Content-Disposition", "attachment; filename=ca.crt")
http.ServeFile(sia.Ctx.ResponseWriter, sia.Ctx.Request, defaultRootCert)
} else if os.IsNotExist(err) {
log.Error("No certificate found.")
sia.CustomAbort(http.StatusNotFound, "No certificate found.")
} else {
log.Errorf("Unexpected error: %v", err)
sia.CustomAbort(http.StatusInternalServerError, http.StatusText(http.StatusInternalServerError))
}
}
// GetGeneralInfo returns the general system info, which is to be called by anonymous user
func (sia *SystemInfoAPI) GetGeneralInfo() {
cfg, err := config.GetSystemCfg()
if err != nil {
log.Errorf("Error occurred getting config: %v", err)
sia.CustomAbort(http.StatusInternalServerError, "Unexpected error")
}
var registryURL string
if l := strings.Split(cfg[common.ExtEndpoint].(string), "://"); len(l) > 1 {
registryURL = l[1]
} else {
registryURL = l[0]
}
_, caStatErr := os.Stat(defaultRootCert)
harborVersion := sia.getVersion()
info := GeneralInfo{
AdmiralEndpoint: utils.SafeCastString(cfg[common.AdmiralEndpoint]),
WithAdmiral: config.WithAdmiral(),
WithNotary: config.WithNotary(),
WithClair: config.WithClair(),
AuthMode: utils.SafeCastString(cfg[common.AUTHMode]),
ProjectCreationRestrict: utils.SafeCastString(cfg[common.ProjectCreationRestriction]),
SelfRegistration: utils.SafeCastBool(cfg[common.SelfRegistration]),
RegistryURL: registryURL,
HasCARoot: caStatErr == nil,
HarborVersion: harborVersion,
RegistryStorageProviderName: utils.SafeCastString(cfg[common.RegistryStorageProviderName]),
ReadOnly: config.ReadOnly(),
WithChartMuseum: config.WithChartMuseum(),
}
if info.WithClair {
info.ClairVulnStatus = getClairVulnStatus()
}
sia.Data["json"] = info
sia.ServeJSON()
}
// getVersion gets harbor version.
func (sia *SystemInfoAPI) getVersion() string {
version, err := ioutil.ReadFile(harborVersionFile)
if err != nil {
log.Errorf("Error occurred getting harbor version: %v", err)
return ""
}
return string(version[:])
}
func getClairVulnStatus() *models.ClairVulnerabilityStatus {
res := &models.ClairVulnerabilityStatus{}
last, err := clairdao.GetLastUpdate()
if err != nil {
log.Errorf("Failed to get last update from Clair DB, error: %v", err)
res.OverallUTC = 0
} else {
res.OverallUTC = last
log.Debugf("Clair vuln DB last update: %d", last)
}
details := []models.ClairNamespaceTimestamp{}
if res.OverallUTC > 0 {
l, err := dao.ListClairVulnTimestamps()
if err != nil {
log.Errorf("Failed to list Clair vulnerability timestamps, error:%v", err)
return res
}
m := make(map[string]int64)
for _, e := range l {
ns := strings.Split(e.Namespace, ":")
// only returns the latest time of one distro, i.e. unbuntu:14.04 and ubuntu:15.4 shares one timestamp
el := e.LastUpdate.UTC().Unix()
if ts, ok := m[ns[0]]; !ok || ts < el {
m[ns[0]] = el
}
}
list, err := namespaces.get()
if err != nil {
log.Errorf("Failed to get namespace list from Clair, error: %v", err)
}
// For namespaces not reported by notifier, the timestamp will be the overall db timestamp.
for _, n := range list {
if _, ok := m[n]; !ok {
m[n] = res.OverallUTC
}
}
for k, v := range m {
e := models.ClairNamespaceTimestamp{
Namespace: k,
Timestamp: v,
}
details = append(details, e)
}
}
res.Details = details
return res
}
// Ping ping the harbor core service.
func (sia *SystemInfoAPI) Ping() {
sia.Data["json"] = "Pong"
sia.ServeJSON()
}