woodpecker/server/remote/gogs/gogs.go

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// Copyright 2022 Woodpecker Authors
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// Copyright 2018 Drone.IO Inc.
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//
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// 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
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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
// 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 gogs
import (
"context"
"crypto/tls"
"fmt"
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"net"
"net/http"
"net/url"
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"strings"
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"github.com/gogits/go-gogs-client"
"github.com/woodpecker-ci/woodpecker/server/model"
"github.com/woodpecker-ci/woodpecker/server/remote"
"github.com/woodpecker-ci/woodpecker/server/remote/common"
)
// Opts defines configuration options.
type Opts struct {
URL string // Gogs server url.
Username string // Optional machine account username.
Password string // Optional machine account password.
PrivateMode bool // Gogs is running in private mode.
SkipVerify bool // Skip ssl verification.
}
type client struct {
URL string
Username string
Password string
PrivateMode bool
SkipVerify bool
}
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// New returns a Remote implementation that integrates with Gogs, an open
// source Git service written in Go. See https://gogs.io/
func New(opts Opts) (remote.Remote, error) {
u, err := url.Parse(opts.URL)
if err != nil {
return nil, err
}
host, _, err := net.SplitHostPort(u.Host)
if err == nil {
u.Host = host
}
return &client{
URL: opts.URL,
Username: opts.Username,
Password: opts.Password,
PrivateMode: opts.PrivateMode,
SkipVerify: opts.SkipVerify,
}, nil
}
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// Name returns the string name of this driver
func (c *client) Name() string {
return "gogs"
}
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// Login authenticates an account with Gogs using basic authentication. The
// Gogs account details are returned when the user is successfully authenticated.
func (c *client) Login(ctx context.Context, res http.ResponseWriter, req *http.Request) (*model.User, error) {
var (
username = req.FormValue("username")
password = req.FormValue("password")
)
// if the username or password is empty we re-direct to the login screen.
if len(username) == 0 || len(password) == 0 {
http.Redirect(res, req, "/login/form", http.StatusSeeOther)
return nil, nil
}
client := c.newClient()
// try to fetch woodpecker token if it exists
var accessToken string
tokens, err := client.ListAccessTokens(username, password)
if err == nil {
for _, token := range tokens {
if token.Name == "woodpecker" {
accessToken = token.Sha1
break
}
}
}
// if woodpecker token not found, create it
if accessToken == "" {
token, terr := client.CreateAccessToken(
username,
password,
gogs.CreateAccessTokenOption{Name: "woodpecker"},
)
if terr != nil {
return nil, terr
}
accessToken = token.Sha1
}
client = c.newClientToken(accessToken)
account, err := client.GetUserInfo(username)
if err != nil {
return nil, err
}
return &model.User{
Token: accessToken,
Login: account.UserName,
Email: account.Email,
Avatar: expandAvatar(c.URL, account.AvatarUrl),
}, nil
}
// Auth is not supported by the Gogs driver.
func (c *client) Auth(ctx context.Context, token, secret string) (string, error) {
return "", fmt.Errorf("Not Implemented")
}
// Teams is not supported by the Gogs driver.
func (c *client) Teams(ctx context.Context, u *model.User) ([]*model.Team, error) {
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client := c.newClientToken(u.Token)
orgs, err := client.ListMyOrgs()
if err != nil {
return nil, err
}
var teams []*model.Team
for _, org := range orgs {
teams = append(teams, toTeam(org, c.URL))
}
return teams, nil
}
// Repo returns the named Gogs repository.
func (c *client) Repo(ctx context.Context, u *model.User, _ model.RemoteID, owner, name string) (*model.Repo, error) {
client := c.newClientToken(u.Token)
repo, err := client.GetRepo(owner, name)
if err != nil {
return nil, err
}
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return toRepo(repo, c.PrivateMode), nil
}
// Repos returns a list of all repositories for the Gogs account, including
// organization repositories.
func (c *client) Repos(ctx context.Context, u *model.User) ([]*model.Repo, error) {
var repos []*model.Repo
client := c.newClientToken(u.Token)
all, err := client.ListMyRepos()
if err != nil {
return repos, err
}
for _, repo := range all {
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repos = append(repos, toRepo(repo, c.PrivateMode))
}
return repos, err
}
// Perm returns the user permissions for the named Gogs repository.
func (c *client) Perm(ctx context.Context, u *model.User, r *model.Repo) (*model.Perm, error) {
client := c.newClientToken(u.Token)
repo, err := client.GetRepo(r.Owner, r.Name)
if err != nil {
return nil, err
}
return toPerm(repo.Permissions), nil
}
// File fetches the file from the Gogs repository and returns its contents.
func (c *client) File(ctx context.Context, u *model.User, r *model.Repo, b *model.Pipeline, f string) ([]byte, error) {
client := c.newClientToken(u.Token)
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ref := b.Commit
// TODO gogs does not yet return a sha with the pull request
// so unfortunately we need to use the pull request branch.
if b.Event == model.EventPull {
ref = b.Branch
}
if ref == "" {
// Remove refs/tags or refs/heads, Gogs needs a short ref
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ref = strings.TrimPrefix(
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strings.TrimPrefix(
b.Ref,
"refs/heads/",
),
"refs/tags/",
)
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}
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cfg, err := client.GetFile(r.Owner, r.Name, ref, f)
return cfg, err
}
func (c *client) Dir(ctx context.Context, u *model.User, r *model.Repo, b *model.Pipeline, f string) ([]*remote.FileMeta, error) {
return nil, fmt.Errorf("Not implemented")
}
// Status is not supported by the Gogs driver.
func (c *client) Status(ctx context.Context, u *model.User, r *model.Repo, b *model.Pipeline, proc *model.Proc) error {
return nil
}
// Netrc returns a netrc file capable of authenticating Gogs requests and
// cloning Gogs repositories. The netrc will use the global machine account
// when configured.
func (c *client) Netrc(u *model.User, r *model.Repo) (*model.Netrc, error) {
host, err := common.ExtractHostFromCloneURL(r.Clone)
if err != nil {
return nil, err
}
if c.Password != "" {
return &model.Netrc{
Login: c.Username,
Password: c.Password,
Machine: host,
}, nil
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}
return &model.Netrc{
Login: u.Token,
Password: "x-oauth-basic",
Machine: host,
}, nil
}
// Activate activates the repository by registering post-commit hooks with
// the Gogs repository.
func (c *client) Activate(ctx context.Context, u *model.User, r *model.Repo, link string) error {
config := map[string]string{
"url": link,
"secret": r.Hash,
"content_type": "json",
}
hook := gogs.CreateHookOption{
Type: "gogs",
Config: config,
Events: []string{"push", "create", "pull_request"},
Active: true,
}
client := c.newClientToken(u.Token)
_, err := client.CreateRepoHook(r.Owner, r.Name, hook)
return err
}
// Deactivate is not supported by the Gogs driver.
func (c *client) Deactivate(ctx context.Context, u *model.User, r *model.Repo, link string) error {
return nil
}
// Branches returns the names of all branches for the named repository.
func (c *client) Branches(ctx context.Context, u *model.User, r *model.Repo) ([]string, error) {
token := ""
if u != nil {
token = u.Token
}
client := c.newClientToken(token)
gogsBranches, err := client.ListRepoBranches(r.Owner, r.Name)
if err != nil {
return nil, err
}
branches := make([]string, 0)
for _, branch := range gogsBranches {
branches = append(branches, branch.Name)
}
return branches, nil
}
// BranchHead returns sha of commit on top of the specified branch
func (c *client) BranchHead(ctx context.Context, u *model.User, r *model.Repo, branch string) (string, error) {
token := ""
if u != nil {
token = u.Token
}
b, err := c.newClientToken(token).GetRepoBranch(r.Owner, r.Name, branch)
if err != nil {
return "", err
}
return b.Commit.ID, nil
}
// Hook parses the incoming Gogs hook and returns the Repository and Pipeline
// details. If the hook is unsupported nil values are returned.
func (c *client) Hook(ctx context.Context, r *http.Request) (*model.Repo, *model.Pipeline, error) {
return parseHook(r, c.PrivateMode)
}
// OrgMembership returns if user is member of organization and if user
// is admin/owner in this organization.
func (c *client) OrgMembership(ctx context.Context, u *model.User, owner string) (*model.OrgPerm, error) {
client := c.newClientToken(u.Token)
orgs, err := client.ListMyOrgs()
if err != nil {
return nil, err
}
for _, org := range orgs {
if org.UserName == owner {
// TODO: API does not support checking if user is admin/owner of org
return &model.OrgPerm{Member: true}, nil
}
}
return &model.OrgPerm{}, nil
}
// helper function to return the Gogs client
func (c *client) newClient() *gogs.Client {
return c.newClientToken("")
}
// helper function to return the Gogs client
func (c *client) newClientToken(token string) *gogs.Client {
client := gogs.NewClient(c.URL, token)
if c.SkipVerify {
httpClient := &http.Client{}
httpClient.Transport = &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
client.SetHTTPClient(httpClient)
}
return client
}