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admiral.go
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admiral.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 admiral
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"regexp"
"strconv"
"strings"
"github.com/goharbor/harbor/src/common/models"
"github.com/goharbor/harbor/src/common/utils"
er "github.com/goharbor/harbor/src/common/utils/error"
"github.com/goharbor/harbor/src/common/utils/log"
"github.com/goharbor/harbor/src/core/promgr/pmsdriver"
)
const dupProjectPattern = `Project name '\w+' is already used`
type driver struct {
client *http.Client
endpoint string
tokenReader TokenReader
}
type user struct {
Email string `json:"email"`
}
type project struct {
ID string `json:"id"`
Name string `json:"name"`
Public bool `json:"isPublic"`
OwnerID string `json:"documentOwner"`
CustomProperties map[string]string `json:"customProperties"`
Administrators []*user `json:"administrators"`
Developers []*user `json:"members"`
Guests []*user `json:"viewers"`
}
// NewDriver returns an instance of driver
func NewDriver(client *http.Client, endpoint string,
tokenReader TokenReader) pmsdriver.PMSDriver {
return &driver{
client: client,
endpoint: strings.TrimRight(endpoint, "/"),
tokenReader: tokenReader,
}
}
// Get ...
func (d *driver) Get(projectIDOrName interface{}) (*models.Project, error) {
project, err := d.get(projectIDOrName)
if err != nil {
return nil, err
}
return convert(project)
}
// get Admiral project with Harbor project ID or name
func (d *driver) get(projectIDOrName interface{}) (*project, error) {
// if token is provided, search project from my projects list first
if len(d.getToken()) != 0 {
project, err := d.getFromMy(projectIDOrName)
if err != nil {
return nil, err
}
if project != nil {
return project, nil
}
}
// try to get project from public projects list
return d.getFromPublic(projectIDOrName)
}
// call GET /projects?$filter=xxx eq xxx, the API can only filter projects
// which the user is a member of
func (d *driver) getFromMy(projectIDOrName interface{}) (*project, error) {
return d.getAdmiralProject(projectIDOrName, false)
}
// call GET /projects?public=true&$filter=xxx eq xxx
func (d *driver) getFromPublic(projectIDOrName interface{}) (*project, error) {
project, err := d.getAdmiralProject(projectIDOrName, true)
if project != nil {
// the projects returned by GET /projects?public=true&xxx have no
// "public" property, populate it here
project.Public = true
}
return project, err
}
func (d *driver) getAdmiralProject(projectIDOrName interface{}, public bool) (*project, error) {
m := map[string]string{}
id, name, err := utils.ParseProjectIDOrName(projectIDOrName)
if err != nil {
return nil, err
}
if id > 0 {
m["customProperties.__projectIndex"] = strconv.FormatInt(id, 10)
} else {
m["name"] = name
}
if public {
m["public"] = "true"
}
projects, err := d.filter(m)
if err != nil {
return nil, err
}
if len(projects) == 0 {
return nil, nil
}
if len(projects) != 1 {
for _, project := range projects {
fmt.Printf("%v", project)
}
return nil, fmt.Errorf("unexpected size of project list: %d != 1", len(projects))
}
return projects[0], nil
}
func (d *driver) filter(m map[string]string) ([]*project, error) {
query := ""
for k, v := range m {
if len(query) == 0 {
query += "?"
} else {
query += "&"
}
if k == "public" {
query += fmt.Sprintf("%s=%s", k, v)
} else {
query += fmt.Sprintf("$filter=%s eq '%s'", k, v)
}
}
if len(query) == 0 {
query = "?expand=true"
}
path := "/projects" + query
data, err := d.send(http.MethodGet, path, nil)
if err != nil {
return nil, err
}
return parse(data)
}
// parse the response of GET /projects?xxx to project list
func parse(b []byte) ([]*project, error) {
documents := &struct {
// DocumentCount int64 `json:"documentCount"`
Projects map[string]*project `json:"documents"`
}{}
if err := json.Unmarshal(b, documents); err != nil {
return nil, err
}
projects := []*project{}
for link, project := range documents.Projects {
project.ID = strings.TrimPrefix(link, "/projects/")
projects = append(projects, project)
}
return projects, nil
}
func convert(p *project) (*models.Project, error) {
if p == nil {
return nil, nil
}
project := &models.Project{
Name: p.Name,
}
if p.Public {
project.SetMetadata(models.ProMetaPublic, "true")
}
value := p.CustomProperties["__projectIndex"]
if len(value) == 0 {
return nil, fmt.Errorf("property __projectIndex is null")
}
id, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return nil, fmt.Errorf("failed to parse __projectIndex %s to int64: %v", value, err)
}
project.ProjectID = id
value = p.CustomProperties["__enableContentTrust"]
if len(value) != 0 {
enable, err := strconv.ParseBool(value)
if err != nil {
return nil, fmt.Errorf("failed to parse __enableContentTrust %s to bool: %v", value, err)
}
project.SetMetadata(models.ProMetaEnableContentTrust, strconv.FormatBool(enable))
}
value = p.CustomProperties["__preventVulnerableImagesFromRunning"]
if len(value) != 0 {
prevent, err := strconv.ParseBool(value)
if err != nil {
return nil, fmt.Errorf("failed to parse __preventVulnerableImagesFromRunning %s to bool: %v", value, err)
}
project.SetMetadata(models.ProMetaPreventVul, strconv.FormatBool(prevent))
}
value = p.CustomProperties["__preventVulnerableImagesFromRunningSeverity"]
if len(value) != 0 {
project.SetMetadata(models.ProMetaSeverity, value)
}
value = p.CustomProperties["__automaticallyScanImagesOnPush"]
if len(value) != 0 {
scan, err := strconv.ParseBool(value)
if err != nil {
return nil, fmt.Errorf("failed to parse __automaticallyScanImagesOnPush %s to bool: %v", value, err)
}
project.SetMetadata(models.ProMetaAutoScan, strconv.FormatBool(scan))
}
return project, nil
}
func (d *driver) getIDbyHarborIDOrName(projectIDOrName interface{}) (string, error) {
pro, err := d.get(projectIDOrName)
if err != nil {
return "", err
}
if pro == nil {
return "", fmt.Errorf("project %v not found", projectIDOrName)
}
return pro.ID, nil
}
// Create ...
func (d *driver) Create(pro *models.Project) (int64, error) {
proj := &project{
CustomProperties: make(map[string]string),
}
proj.Name = pro.Name
proj.Public = pro.IsPublic()
proj.CustomProperties["__enableContentTrust"] = strconv.FormatBool(pro.ContentTrustEnabled())
proj.CustomProperties["__preventVulnerableImagesFromRunning"] = strconv.FormatBool(pro.VulPrevented())
proj.CustomProperties["__preventVulnerableImagesFromRunningSeverity"] = pro.Severity()
proj.CustomProperties["__automaticallyScanImagesOnPush"] = strconv.FormatBool(pro.AutoScan())
data, err := json.Marshal(proj)
if err != nil {
return 0, err
}
b, err := d.send(http.MethodPost, "/projects", bytes.NewBuffer(data))
if err != nil {
// when creating a project with a duplicate name in Admiral, a 500 error
// with a specific message will be returned for now.
// Maybe a 409 error will be returned if Admiral team finds the way to
// return a specific code in Xenon.
// The following codes convert both those two errors to DupProjectErr
httpErr, ok := err.(*er.HTTPError)
if !ok {
return 0, err
}
if httpErr.StatusCode == http.StatusConflict {
return 0, er.ErrDupProject
}
if httpErr.StatusCode != http.StatusInternalServerError {
return 0, err
}
match, e := regexp.MatchString(dupProjectPattern, httpErr.Detail)
if e != nil {
log.Errorf("failed to match duplicate project mattern: %v", e)
}
if match {
err = er.ErrDupProject
}
return 0, err
}
proj = &project{}
if err = json.Unmarshal(b, proj); err != nil {
return 0, err
}
pp, err := convert(proj)
if err != nil {
return 0, err
}
return pp.ProjectID, err
}
// Delete ...
func (d *driver) Delete(projectIDOrName interface{}) error {
id, err := d.getIDbyHarborIDOrName(projectIDOrName)
if err != nil {
return err
}
_, err = d.send(http.MethodDelete, fmt.Sprintf("/projects/%s", id), nil)
return err
}
// Update ...
func (d *driver) Update(projectIDOrName interface{}, project *models.Project) error {
return errors.New("project update is unsupported")
}
// List ...
func (d *driver) List(query *models.ProjectQueryParam) (*models.ProjectQueryResult, error) {
m := map[string]string{}
if query != nil {
if len(query.Name) > 0 {
m["name"] = query.Name
}
if query.Public != nil {
m["public"] = strconv.FormatBool(*query.Public)
}
}
projects, err := d.filter(m)
if err != nil {
return nil, err
}
list := []*models.Project{}
for _, p := range projects {
project, err := convert(p)
if err != nil {
return nil, err
}
list = append(list, project)
}
return &models.ProjectQueryResult{
Total: int64(len(list)),
Projects: list,
}, nil
}
func (d *driver) send(method, path string, body io.Reader) ([]byte, error) {
req, err := http.NewRequest(method, d.endpoint+path, body)
if err != nil {
return nil, err
}
req.Header.Add("x-xenon-auth-token", d.getToken())
url := req.URL.String()
req.URL.RawQuery = req.URL.Query().Encode()
resp, err := d.client.Do(req)
if err != nil {
log.Debugf("\"%s %s\" failed", req.Method, url)
return nil, err
}
defer resp.Body.Close()
log.Debugf("\"%s %s\" %d", req.Method, url, resp.StatusCode)
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, &er.HTTPError{
StatusCode: resp.StatusCode,
Detail: string(b),
}
}
return b, nil
}
func (d *driver) getToken() string {
if d.tokenReader == nil {
return ""
}
token, err := d.tokenReader.ReadToken()
if err != nil {
token = ""
log.Errorf("failed to read token: %v", err)
}
return token
}