394 lines
11 KiB
Go
394 lines
11 KiB
Go
// Copyright 2019 Sorint.lab
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package gitlab
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import (
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"context"
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"crypto/tls"
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"encoding/base64"
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"fmt"
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"net"
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"net/http"
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"regexp"
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"strconv"
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"strings"
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"time"
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gitsource "agola.io/agola/internal/gitsources"
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gitlab "github.com/xanzy/go-gitlab"
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"golang.org/x/oauth2"
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errors "golang.org/x/xerrors"
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)
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var (
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GitlabOauth2Scopes = []string{"api"}
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branchRefPrefix = "refs/heads/"
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tagRefPrefix = "refs/tags/"
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pullRequestRefRegex = regexp.MustCompile("refs/merge-requests/(.*)/head")
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pullRequestRefFmt = "refs/merge-requests/%s/head"
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)
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type Opts struct {
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APIURL string
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Token string
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SkipVerify bool
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Oauth2ClientID string
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Oauth2Secret string
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}
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type Client struct {
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client *gitlab.Client
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oauth2HTTPClient *http.Client
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APIURL string
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oauth2ClientID string
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oauth2Secret string
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}
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// fromCommitStatus converts a gitsource commit status to a gitlab commit status
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func fromCommitStatus(status gitsource.CommitStatus) gitlab.BuildStateValue {
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switch status {
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case gitsource.CommitStatusPending:
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return gitlab.Pending
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case gitsource.CommitStatusSuccess:
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return gitlab.Success
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case gitsource.CommitStatusError:
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return gitlab.Failed
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case gitsource.CommitStatusFailed:
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return gitlab.Failed
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default:
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panic(fmt.Errorf("unknown commit status %q", status))
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}
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}
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func New(opts Opts) (*Client, error) {
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// copied from net/http until it has a clone function: https://github.com/golang/go/issues/26013
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transport := &http.Transport{
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Proxy: http.ProxyFromEnvironment,
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DialContext: (&net.Dialer{
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Timeout: 30 * time.Second,
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KeepAlive: 30 * time.Second,
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DualStack: true,
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}).DialContext,
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MaxIdleConns: 100,
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IdleConnTimeout: 90 * time.Second,
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TLSHandshakeTimeout: 10 * time.Second,
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ExpectContinueTimeout: 1 * time.Second,
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TLSClientConfig: &tls.Config{InsecureSkipVerify: opts.SkipVerify},
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}
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httpClient := &http.Client{Transport: transport}
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client := gitlab.NewOAuthClient(httpClient, opts.Token)
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if err := client.SetBaseURL(opts.APIURL); err != nil {
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return nil, errors.Errorf("failed to set gitlab client base url: %w", err)
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}
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return &Client{
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client: client,
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oauth2HTTPClient: httpClient,
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APIURL: opts.APIURL,
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oauth2ClientID: opts.Oauth2ClientID,
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oauth2Secret: opts.Oauth2Secret,
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}, nil
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}
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func (c *Client) oauth2Config(callbackURL string) *oauth2.Config {
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return &oauth2.Config{
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ClientID: c.oauth2ClientID,
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ClientSecret: c.oauth2Secret,
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Scopes: GitlabOauth2Scopes,
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Endpoint: oauth2.Endpoint{
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AuthURL: fmt.Sprintf("%s/oauth/authorize", c.APIURL),
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TokenURL: fmt.Sprintf("%s/oauth/token", c.APIURL),
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},
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RedirectURL: callbackURL,
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}
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}
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func (c *Client) GetOauth2AuthorizationURL(callbackURL, state string) (string, error) {
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var config = c.oauth2Config(callbackURL)
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return config.AuthCodeURL(state), nil
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}
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func (c *Client) RequestOauth2Token(callbackURL, code string) (*oauth2.Token, error) {
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ctx := context.TODO()
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ctx = context.WithValue(ctx, oauth2.HTTPClient, c.oauth2HTTPClient)
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var config = c.oauth2Config(callbackURL)
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token, err := config.Exchange(ctx, code)
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if err != nil {
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return nil, errors.Errorf("cannot get oauth2 token: %w", err)
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}
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return token, nil
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}
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func (c *Client) RefreshOauth2Token(refreshToken string) (*oauth2.Token, error) {
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ctx := context.TODO()
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ctx = context.WithValue(ctx, oauth2.HTTPClient, c.oauth2HTTPClient)
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var config = c.oauth2Config("")
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token := &oauth2.Token{RefreshToken: refreshToken}
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ts := config.TokenSource(ctx, token)
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return ts.Token()
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}
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func (c *Client) GetRepoInfo(repopath string) (*gitsource.RepoInfo, error) {
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rr, _, err := c.client.Projects.GetProject(repopath, nil)
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if err != nil {
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return nil, err
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}
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return fromGitlabRepo(rr), nil
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}
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func (c *Client) GetUserInfo() (*gitsource.UserInfo, error) {
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user, _, err := c.client.Users.CurrentUser()
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if err != nil {
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return nil, err
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}
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return &gitsource.UserInfo{
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ID: strconv.Itoa(user.ID),
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LoginName: user.Username,
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Email: user.Email,
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}, nil
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}
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func (c *Client) GetFile(repopath, commit, file string) ([]byte, error) {
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f, _, err := c.client.RepositoryFiles.GetFile(repopath, file, &gitlab.GetFileOptions{Ref: gitlab.String(commit)})
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if err != nil {
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return nil, err
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}
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data, err := base64.StdEncoding.DecodeString(f.Content)
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if err != nil {
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return nil, err
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}
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return data, err
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}
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func (c *Client) CreateDeployKey(repopath, title, pubKey string, readonly bool) error {
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if _, _, err := c.client.DeployKeys.AddDeployKey(repopath, &gitlab.AddDeployKeyOptions{
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Title: gitlab.String(title),
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Key: gitlab.String(pubKey),
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}); err != nil {
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return errors.Errorf("error creating deploy key: %w", err)
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}
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return nil
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}
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func (c *Client) UpdateDeployKey(repopath, title, pubKey string, readonly bool) error {
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keys, _, err := c.client.DeployKeys.ListProjectDeployKeys(repopath, nil)
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if err != nil {
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return errors.Errorf("error retrieving existing deploy keys: %w", err)
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}
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for _, key := range keys {
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if key.Title == title {
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if key.Key == pubKey {
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return nil
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}
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if _, err := c.client.DeployKeys.DeleteDeployKey(repopath, key.ID); err != nil {
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return errors.Errorf("error removing existing deploy key: %w", err)
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}
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}
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}
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if _, _, err := c.client.DeployKeys.AddDeployKey(repopath, &gitlab.AddDeployKeyOptions{
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Title: &title,
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Key: &pubKey,
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}); err != nil {
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return errors.Errorf("error creating deploy key: %w", err)
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}
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return nil
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}
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func (c *Client) DeleteDeployKey(repopath, title string) error {
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keys, _, err := c.client.DeployKeys.ListProjectDeployKeys(repopath, nil)
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if err != nil {
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return errors.Errorf("error retrieving existing deploy keys: %w", err)
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}
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for _, key := range keys {
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if key.Title == title {
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if _, err := c.client.DeployKeys.DeleteDeployKey(repopath, key.ID); err != nil {
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return errors.Errorf("error removing existing deploy key: %w", err)
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}
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}
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}
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return nil
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}
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func (c *Client) CreateRepoWebhook(repopath, url, secret string) error {
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opts := &gitlab.AddProjectHookOptions{
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URL: gitlab.String(url),
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PushEvents: gitlab.Bool(true),
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TagPushEvents: gitlab.Bool(true),
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MergeRequestsEvents: gitlab.Bool(true),
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Token: gitlab.String(secret),
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}
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if _, _, err := c.client.Projects.AddProjectHook(repopath, opts); err != nil {
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return errors.Errorf("error creating repository webhook: %w", err)
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}
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return nil
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}
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func (c *Client) DeleteRepoWebhook(repopath, u string) error {
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hooks, _, err := c.client.Projects.ListProjectHooks(repopath, nil)
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if err != nil {
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return errors.Errorf("error retrieving repository webhooks: %w", err)
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}
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// match the full url so we can have multiple webhooks for different agola
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// projects
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for _, hook := range hooks {
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if hook.URL == u {
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if _, err := c.client.Projects.DeleteProjectHook(repopath, hook.ID); err != nil {
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return errors.Errorf("error deleting existing repository webhook: %w", err)
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}
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}
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}
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return nil
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}
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func (c *Client) CreateCommitStatus(repopath, commitSHA string, status gitsource.CommitStatus, targetURL, description, context string) error {
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_, _, err := c.client.Commits.SetCommitStatus(repopath, commitSHA, &gitlab.SetCommitStatusOptions{
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State: fromCommitStatus(status),
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TargetURL: gitlab.String(targetURL),
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Description: gitlab.String(description),
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Context: gitlab.String(context),
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})
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return err
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}
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func (c *Client) ListUserRepos() ([]*gitsource.RepoInfo, error) {
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// get only repos with permission greater or equal to maintainer
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opts := &gitlab.ListProjectsOptions{MinAccessLevel: gitlab.AccessLevel(gitlab.MaintainerPermissions)}
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remoteRepos, _, err := c.client.Projects.ListProjects(opts)
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if err != nil {
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return nil, err
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}
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repos := []*gitsource.RepoInfo{}
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for _, rr := range remoteRepos {
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repos = append(repos, fromGitlabRepo(rr))
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}
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return repos, nil
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}
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func fromGitlabRepo(rr *gitlab.Project) *gitsource.RepoInfo {
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return &gitsource.RepoInfo{
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ID: strconv.Itoa(rr.ID),
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Path: rr.PathWithNamespace,
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HTMLURL: rr.WebURL,
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SSHCloneURL: rr.SSHURLToRepo,
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HTTPCloneURL: rr.HTTPURLToRepo,
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}
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}
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// NOTE(sgotti) gitlab doesn't provide a get ref api
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func (c *Client) GetRef(repopath, ref string) (*gitsource.Ref, error) {
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switch {
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case strings.HasPrefix(ref, "refs/heads/"):
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branch := strings.TrimPrefix(ref, "refs/heads/")
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remoteBranch, _, err := c.client.Branches.GetBranch(repopath, branch)
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if err != nil {
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return nil, err
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}
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return &gitsource.Ref{
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Ref: ref,
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CommitSHA: remoteBranch.Commit.ID,
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}, nil
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case strings.HasPrefix(ref, "refs/tags/"):
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tag := strings.TrimPrefix(ref, "refs/heads/")
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remoteTag, _, err := c.client.Tags.GetTag(repopath, tag)
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if err != nil {
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return nil, err
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}
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return &gitsource.Ref{
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Ref: ref,
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CommitSHA: remoteTag.Commit.ID,
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}, nil
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default:
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return nil, fmt.Errorf("unsupported ref: %s", ref)
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}
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}
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func (c *Client) RefType(ref string) (gitsource.RefType, string, error) {
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switch {
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case strings.HasPrefix(ref, branchRefPrefix):
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return gitsource.RefTypeBranch, strings.TrimPrefix(ref, branchRefPrefix), nil
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case strings.HasPrefix(ref, tagRefPrefix):
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return gitsource.RefTypeTag, strings.TrimPrefix(ref, tagRefPrefix), nil
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case pullRequestRefRegex.MatchString(ref):
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m := pullRequestRefRegex.FindStringSubmatch(ref)
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return gitsource.RefTypePullRequest, m[1], nil
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default:
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return -1, "", fmt.Errorf("unsupported ref: %s", ref)
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}
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}
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func (c *Client) GetCommit(repopath, commitSHA string) (*gitsource.Commit, error) {
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commit, _, err := c.client.Commits.GetCommit(repopath, commitSHA, nil)
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if err != nil {
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return nil, err
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}
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return &gitsource.Commit{
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SHA: commit.ID,
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Message: commit.Message,
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}, nil
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}
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func (c *Client) BranchRef(branch string) string {
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return branchRefPrefix + branch
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}
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func (c *Client) TagRef(tag string) string {
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return tagRefPrefix + tag
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}
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func (c *Client) PullRequestRef(prID string) string {
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return fmt.Sprintf(pullRequestRefFmt, prID)
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}
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func (c *Client) CommitLink(repoInfo *gitsource.RepoInfo, commitSHA string) string {
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return fmt.Sprintf("%s/commit/%s", repoInfo.HTMLURL, commitSHA)
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}
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func (c *Client) BranchLink(repoInfo *gitsource.RepoInfo, branch string) string {
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return fmt.Sprintf("%s/tree/%s", repoInfo.HTMLURL, branch)
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}
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func (c *Client) TagLink(repoInfo *gitsource.RepoInfo, tag string) string {
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return fmt.Sprintf("%s/tree/%s", repoInfo.HTMLURL, tag)
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}
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func (c *Client) PullRequestLink(repoInfo *gitsource.RepoInfo, prID string) string {
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return fmt.Sprintf("%s/merge_requests/%s", repoInfo.HTMLURL, prID)
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}
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