Files
certman/git.go

366 lines
9.3 KiB
Go

package main
import (
"context"
"errors"
"fmt"
"io"
"os"
"path/filepath"
"strings"
"time"
"code.gitea.io/sdk/gitea"
"github.com/go-git/go-billy/v5"
"github.com/go-git/go-git/v5"
gitconf "github.com/go-git/go-git/v5/config"
"github.com/go-git/go-git/v5/plumbing/object"
"github.com/go-git/go-git/v5/plumbing/transport/http"
"github.com/go-git/go-git/v5/storage/memory"
"github.com/google/go-github/v55/github"
"github.com/spf13/viper"
)
type GitWorkspace struct {
Repo *git.Repository
Storage *memory.Storage
FS billy.Filesystem
WorkTree *git.Worktree
}
type GitSource int
const (
Github GitSource = iota
Gitlab
Gitea
Gogs
Bitbucket
CodeCommit
)
var GitSourceName = map[GitSource]string{
Github: "github",
Gitlab: "gitlab",
Gitea: "gitea",
Gogs: "gogs",
Bitbucket: "bitbucket",
CodeCommit: "code-commit",
}
func strToGitSource(s string) (GitSource, error) {
for k, v := range GitSourceName {
if v == s {
return k, nil
}
}
return GitSource(0), errors.New("invalid gitsource name")
}
func createGithubClient() *github.Client {
return github.NewClient(nil).WithAuthToken(config.GetString("Git.api_token"))
}
func createGiteaClient() *gitea.Client {
client, err := gitea.NewClient(config.GetString("Git.server"), gitea.SetToken(config.GetString("Git.api_token")))
if err != nil {
fmt.Printf("Error connecting to gitea instance: %v\n", err)
return nil
}
return client
}
func createGithubRepo(domain *Domain, client *github.Client) string {
name := domain.name
owner := domain.config.GetString("Repo.owner")
description := domain.description
private := true
includeAllBranches := false
ctx := context.Background()
template := &github.TemplateRepoRequest{
Name: name,
Owner: &owner,
Description: description,
Private: &private,
IncludeAllBranches: &includeAllBranches,
}
repo, _, err := client.Repositories.CreateFromTemplate(ctx, config.GetString("Git.org_name"), config.GetString("Git.template_name"), template)
if err != nil {
fmt.Println("Error creating repository from template,", err)
return ""
}
return *repo.CloneURL
}
func createGiteaRepo(domain string, giteaClient *gitea.Client) string {
domainConfig, exists := domainStore.Get(domain)
if !exists {
fmt.Printf("Domain %s config does not exist\n", domain)
return ""
}
options := gitea.CreateRepoOption{
Name: domain + domainConfig.GetString("Repo.repo_suffix"),
Description: "Certificate storage for " + domain,
Private: true,
IssueLabels: "",
AutoInit: false,
Template: false,
Gitignores: "",
License: "",
Readme: "",
DefaultBranch: "master",
TrustModel: gitea.TrustModelDefault,
}
giteaRepo, _, err := giteaClient.CreateOrgRepo(config.GetString("Git.org_name"), options)
if err != nil {
fmt.Printf("Error creating repo: %v\n", err)
return ""
}
return giteaRepo.CloneURL
}
func initRepo(url string, ws *GitWorkspace) error {
var err error
ws.Repo, err = git.Init(ws.Storage, ws.FS)
if err != nil {
fmt.Printf("Error initializing local repo: %v\n", err)
return err
}
_, err = ws.Repo.CreateRemote(&gitconf.RemoteConfig{
Name: "origin",
URLs: []string{url},
})
if err != nil && !errors.Is(err, git.ErrRemoteExists) {
fmt.Printf("Error creating remote origin repo: %v\n", err)
return err
}
ws.WorkTree, err = ws.Repo.Worktree()
if err != nil {
fmt.Printf("Error getting worktree from local repo: %v\n", err)
return err
}
return nil
}
func cloneRepo(url string, ws *GitWorkspace) error {
creds := &http.BasicAuth{
Username: config.GetString("Git.username"),
Password: config.GetString("Git.api_token"),
}
var err error
ws.Repo, err = git.Clone(ws.Storage, ws.FS, &git.CloneOptions{URL: url, Auth: creds})
if err != nil {
fmt.Printf("Error cloning repo: %v\n", err)
}
ws.WorkTree, err = ws.Repo.Worktree()
if err != nil {
fmt.Printf("Error getting worktree from cloned repo: %v\n", err)
return err
}
serverIdFile, err := ws.FS.OpenFile("/SERVER_ID", os.O_RDWR, 0640)
if err != nil {
if os.IsNotExist(err) {
fmt.Printf("Server ID file not found for %s, adopting domain\n", url)
return nil
}
return err
}
serverIdBytes, err := io.ReadAll(serverIdFile)
if err != nil {
return err
}
serverId := strings.TrimSpace(string(serverIdBytes))
if serverId != config.GetString("App.uuid") {
return fmt.Errorf("domain is already managed by server with uuid %s", serverId)
}
return nil
}
func addAndPushCerts(domain string, ws *GitWorkspace) error {
domainConfig, exists := domainStore.Get(domain)
if !exists {
fmt.Printf("Domain %s config does not exist\n", domain)
return ErrConfigNotFound
}
certsDir, err := getDomainCertsDirWConf(domain, domainConfig)
if err != nil {
if errors.Is(err, ErrConfigNotFound) {
fmt.Printf("Domain %s config not found: %v\n", domain, err)
return err
}
fmt.Printf("Error getting domain %s certs dir: %v\n", domain, err)
}
certFiles, err := os.ReadDir(certsDir)
if err != nil {
fmt.Printf("Error reading from directory: %v\n", err)
return err
}
for _, entry := range certFiles {
if strings.HasSuffix(entry.Name(), ".crpt") {
file, err := ws.FS.Create(entry.Name())
if err != nil {
fmt.Printf("Error copying file to memfs: %v\n", err)
return err
}
certFile, err := os.ReadFile(filepath.Join(certsDir, entry.Name()))
if err != nil {
fmt.Printf("Error reading file to memfs: %v\n", err)
file.Close()
return err
}
_, err = file.Write(certFile)
if err != nil {
fmt.Printf("Error writing to memfs: %v\n", err)
file.Close()
return err
}
_, err = ws.WorkTree.Add(file.Name())
if err != nil {
fmt.Printf("Error adding file %v: %v\n", file.Name(), err)
file.Close()
return err
}
err = file.Close()
if err != nil {
fmt.Printf("Error closing file: %v\n", err)
}
}
file, err := ws.FS.Create("/SERVER_ID")
if err != nil {
fmt.Printf("Error creating file in memfs: %v\n", err)
return err
}
_, err = file.Write([]byte(config.GetString("App.uuid")))
if err != nil {
fmt.Printf("Error writing to memfs: %v\n", err)
file.Close()
return err
}
_, err = ws.WorkTree.Add(file.Name())
if err != nil {
fmt.Printf("Error adding file %v: %v\n", file.Name(), err)
file.Close()
return err
}
err = file.Close()
if err != nil {
fmt.Printf("Error closing file: %v\n", err)
}
}
status, err := ws.WorkTree.Status()
if err != nil {
fmt.Printf("Error getting repo status: %v\n", err)
return err
}
if status.IsClean() {
fmt.Printf("Repository is clean, skipping commit...\n")
return nil
}
fmt.Println("Work Tree Status:\n" + status.String())
signature := &object.Signature{
Name: "Cert Manager",
Email: config.GetString("Certificates.email"),
When: time.Now(),
}
_, err = ws.WorkTree.Commit("Update "+domain+" @ "+time.Now().Format("Mon Jan _2 2006 15:04:05 MST"), &git.CommitOptions{Author: signature, Committer: signature})
if err != nil {
fmt.Printf("Error committing certs: %v\n", err)
return err
}
creds := &http.BasicAuth{
Username: config.GetString("Git.username"),
Password: config.GetString("Git.api_token"),
}
err = ws.Repo.Push(&git.PushOptions{
Auth: creds,
Force: true,
RemoteName: "origin",
RefSpecs: []gitconf.RefSpec{
"refs/heads/master:refs/heads/master",
},
})
if err != nil {
fmt.Printf("Error pushing to origin: %v\n", err)
return err
}
fmt.Println("Successfully uploaded to " + config.GetString("Git.server") + "/" + config.GetString("Git.org_name") + "/" + domain + domainConfig.GetString("Repo.repo_suffix") + ".git")
return nil
}
func writeCommitHash(hash string, domainConfig *viper.Viper) error {
certsDir, err := getDomainCertsDirWOnlyConf(domainConfig)
if err != nil {
if errors.Is(err, ErrConfigNotFound) {
return err
}
return err
}
err = os.WriteFile(filepath.Join(certsDir, "hash"), []byte(hash), 0644)
if err != nil {
return err
}
return nil
}
func getLocalCommitHash(domain string) (string, error) {
certsDir, err := getDomainCertsDir(domain)
if err != nil {
if errors.Is(err, ErrConfigNotFound) {
fmt.Printf("Domain %s config not found: %v\n", domain, err)
return "", err
}
fmt.Printf("Error getting domain %s certs dir: %v\n", domain, err)
}
data, err := os.ReadFile(filepath.Join(certsDir, "hash"))
if err != nil {
fmt.Printf("Error reading file for domain %s: %v\n", domain, err)
return "", err
}
return strings.TrimSpace(string(data)), nil
}
func getRemoteCommitHash(domain string, gitSource GitSource) (string, error) {
domainConfig, exists := domainStore.Get(domain)
if !exists {
fmt.Printf("Domain %s config does not exist\n", domain)
return "", ErrConfigNotFound
}
switch gitSource {
case Gitea:
return getRemoteCommitHashGitea(config.GetString("Git.org_name"), domain+domainConfig.GetString("Repo.repo_suffix"), "master")
default:
fmt.Printf("Unimplemented git source %v\n", gitSource)
return "", errors.New("unimplemented git source")
}
}
func getRemoteCommitHashGitea(org, repo, branchName string) (string, error) {
giteaClient := createGiteaClient()
branch, _, err := giteaClient.GetRepoBranch(org, repo, branchName)
if err != nil {
fmt.Printf("Error getting repo branch: %v\n", err)
return "", err
}
//TODO catch repo not found as ErrRepoNotInit
return branch.Commit.ID, nil
}