Add git hooks and webhooks to template repositories; move to services (#8926)

* Add git hooks and webhooks to template options

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Update models/repo.go

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Add tooltip if the user can't edit git hooks

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Close repositories after copying git hooks

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Wording

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Restructure for services

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Return errors

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Move GenerateRepository to using a DBContext

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Wrap with models.WithTx

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Remove debug print

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Move if-error-delete-repo outside WithTx

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Return nil if no repo generated

Signed-off-by: jolheiser <john.olheiser@gmail.com>

8 files changed, 244 insertions, 115 deletions

diff --git a/models/repo.go b/models/repo.go
index 1f544f1e8c..cbafe5d5a5 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -42,7 +42,6 @@ import (
 	"github.com/unknwon/com"
 	ini "gopkg.in/ini.v1"
 	"xorm.io/builder"
-	"xorm.io/xorm"
 )
 
 var repoWorkingPool = sync.NewExclusivePool()
@@ -1265,11 +1264,13 @@ type GenerateRepoOptions struct {
 	Private     bool
 	GitContent  bool
 	Topics      bool
+	GitHooks    bool
+	Webhooks    bool
 }
 
 // IsValid checks whether at least one option is chosen for generation
 func (gro GenerateRepoOptions) IsValid() bool {
-	return gro.GitContent || gro.Topics // or other items as they are added
+	return gro.GitContent || gro.Topics || gro.GitHooks || gro.Webhooks // or other items as they are added
 }
 
 func getRepoInitFile(tp, name string) ([]byte, error) {
@@ -1483,37 +1484,6 @@ func initRepository(e Engine, repoPath string, u *User, repo *Repository, opts C
 	return nil
 }
 
-// generateRepository initializes repository from template
-func generateRepository(e Engine, repo, templateRepo *Repository) (err error) {
-	tmpDir := filepath.Join(os.TempDir(), "gitea-"+repo.Name+"-"+com.ToStr(time.Now().Nanosecond()))
-
-	if err := os.MkdirAll(tmpDir, os.ModePerm); err != nil {
-		return fmt.Errorf("Failed to create dir %s: %v", tmpDir, err)
-	}
-
-	defer func() {
-		if err := os.RemoveAll(tmpDir); err != nil {
-			log.Error("RemoveAll: %v", err)
-		}
-	}()
-
-	if err = generateRepoCommit(e, repo, templateRepo, tmpDir); err != nil {
-		return fmt.Errorf("generateRepoCommit: %v", err)
-	}
-
-	// re-fetch repo
-	if repo, err = getRepositoryByID(e, repo.ID); err != nil {
-		return fmt.Errorf("getRepositoryByID: %v", err)
-	}
-
-	repo.DefaultBranch = "master"
-	if err = updateRepository(e, repo, false); err != nil {
-		return fmt.Errorf("updateRepository: %v", err)
-	}
-
-	return nil
-}
-
 var (
 	reservedRepoNames    = []string{".", ".."}
 	reservedRepoPatterns = []string{"*.git", "*.wiki"}
@@ -1524,7 +1494,7 @@ func IsUsableRepoName(name string) error {
 	return isUsableName(reservedRepoNames, reservedRepoPatterns, name)
 }
 
-func createRepository(e *xorm.Session, doer, u *User, repo *Repository) (err error) {
+func createRepository(e Engine, doer, u *User, repo *Repository) (err error) {
 	if err = IsUsableRepoName(repo.Name); err != nil {
 		return err
 	}
@@ -2771,72 +2741,6 @@ func ForkRepository(doer, owner *User, oldRepo *Repository, name, desc string) (
 	return repo, CopyLFS(repo, oldRepo)
 }
 
-// GenerateRepository generates a repository from a template
-func GenerateRepository(doer, owner *User, templateRepo *Repository, opts GenerateRepoOptions) (_ *Repository, err error) {
-	repo := &Repository{
-		OwnerID:       owner.ID,
-		Owner:         owner,
-		Name:          opts.Name,
-		LowerName:     strings.ToLower(opts.Name),
-		Description:   opts.Description,
-		IsPrivate:     opts.Private,
-		IsEmpty:       !opts.GitContent || templateRepo.IsEmpty,
-		IsFsckEnabled: templateRepo.IsFsckEnabled,
-		TemplateID:    templateRepo.ID,
-	}
-
-	createSess := x.NewSession()
-	defer createSess.Close()
-	if err = createSess.Begin(); err != nil {
-		return nil, err
-	}
-
-	if err = createRepository(createSess, doer, owner, repo); err != nil {
-		return nil, err
-	}
-
-	//Commit repo to get created repo ID
-	err = createSess.Commit()
-	if err != nil {
-		return nil, err
-	}
-
-	sess := x.NewSession()
-	defer sess.Close()
-	if err = sess.Begin(); err != nil {
-		return repo, err
-	}
-
-	repoPath := RepoPath(owner.Name, repo.Name)
-	if err = checkInitRepository(repoPath); err != nil {
-		return repo, err
-	}
-
-	if opts.GitContent && !templateRepo.IsEmpty {
-		if err = generateRepository(sess, repo, templateRepo); err != nil {
-			return repo, err
-		}
-
-		if err = repo.updateSize(sess); err != nil {
-			return repo, fmt.Errorf("failed to update size for repository: %v", err)
-		}
-
-		if err = copyLFS(sess, repo, templateRepo); err != nil {
-			return repo, fmt.Errorf("failed to copy LFS: %v", err)
-		}
-	}
-
-	if opts.Topics {
-		for _, topic := range templateRepo.Topics {
-			if _, err = addTopicByNameToRepo(sess, repo.ID, topic); err != nil {
-				return repo, err
-			}
-		}
-	}
-
-	return repo, sess.Commit()
-}
-
 // GetForks returns all the forks of the repository
 func (repo *Repository) GetForks() ([]*Repository, error) {
 	forks := make([]*Repository, 0, repo.NumForks)
diff --git a/models/repo_generate.go b/models/repo_generate.go
new file mode 100644
index 0000000000..6406180038
--- /dev/null
+++ b/models/repo_generate.go
@@ -0,0 +1,162 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package models
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+
+	"github.com/unknwon/com"
+)
+
+// generateRepository initializes repository from template
+func generateRepository(e Engine, repo, templateRepo *Repository) (err error) {
+	tmpDir := filepath.Join(os.TempDir(), "gitea-"+repo.Name+"-"+com.ToStr(time.Now().Nanosecond()))
+
+	if err := os.MkdirAll(tmpDir, os.ModePerm); err != nil {
+		return fmt.Errorf("Failed to create dir %s: %v", tmpDir, err)
+	}
+
+	defer func() {
+		if err := os.RemoveAll(tmpDir); err != nil {
+			log.Error("RemoveAll: %v", err)
+		}
+	}()
+
+	if err = generateRepoCommit(e, repo, templateRepo, tmpDir); err != nil {
+		return fmt.Errorf("generateRepoCommit: %v", err)
+	}
+
+	// re-fetch repo
+	if repo, err = getRepositoryByID(e, repo.ID); err != nil {
+		return fmt.Errorf("getRepositoryByID: %v", err)
+	}
+
+	repo.DefaultBranch = "master"
+	if err = updateRepository(e, repo, false); err != nil {
+		return fmt.Errorf("updateRepository: %v", err)
+	}
+
+	return nil
+}
+
+// GenerateRepository generates a repository from a template
+func GenerateRepository(ctx DBContext, doer, owner *User, templateRepo *Repository, opts GenerateRepoOptions) (_ *Repository, err error) {
+	generateRepo := &Repository{
+		OwnerID:       owner.ID,
+		Owner:         owner,
+		Name:          opts.Name,
+		LowerName:     strings.ToLower(opts.Name),
+		Description:   opts.Description,
+		IsPrivate:     opts.Private,
+		IsEmpty:       !opts.GitContent || templateRepo.IsEmpty,
+		IsFsckEnabled: templateRepo.IsFsckEnabled,
+		TemplateID:    templateRepo.ID,
+	}
+
+	if err = createRepository(ctx.e, doer, owner, generateRepo); err != nil {
+		return nil, err
+	}
+
+	repoPath := RepoPath(owner.Name, generateRepo.Name)
+	if err = checkInitRepository(repoPath); err != nil {
+		return generateRepo, err
+	}
+
+	return generateRepo, nil
+}
+
+// GenerateGitContent generates git content from a template repository
+func GenerateGitContent(ctx DBContext, templateRepo, generateRepo *Repository) error {
+	if err := generateRepository(ctx.e, generateRepo, templateRepo); err != nil {
+		return err
+	}
+
+	if err := generateRepo.updateSize(ctx.e); err != nil {
+		return fmt.Errorf("failed to update size for repository: %v", err)
+	}
+
+	if err := copyLFS(ctx.e, generateRepo, templateRepo); err != nil {
+		return fmt.Errorf("failed to copy LFS: %v", err)
+	}
+	return nil
+}
+
+// GenerateTopics generates topics from a template repository
+func GenerateTopics(ctx DBContext, templateRepo, generateRepo *Repository) error {
+	for _, topic := range templateRepo.Topics {
+		if _, err := addTopicByNameToRepo(ctx.e, generateRepo.ID, topic); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// GenerateGitHooks generates git hooks from a template repository
+func GenerateGitHooks(ctx DBContext, templateRepo, generateRepo *Repository) error {
+	generateGitRepo, err := git.OpenRepository(generateRepo.repoPath(ctx.e))
+	if err != nil {
+		return err
+	}
+	defer generateGitRepo.Close()
+
+	templateGitRepo, err := git.OpenRepository(templateRepo.repoPath(ctx.e))
+	if err != nil {
+		return err
+	}
+	defer templateGitRepo.Close()
+
+	templateHooks, err := templateGitRepo.Hooks()
+	if err != nil {
+		return err
+	}
+
+	for _, templateHook := range templateHooks {
+		generateHook, err := generateGitRepo.GetHook(templateHook.Name())
+		if err != nil {
+			return err
+		}
+
+		generateHook.Content = templateHook.Content
+		if err := generateHook.Update(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// GenerateWebhooks generates webhooks from a template repository
+func GenerateWebhooks(ctx DBContext, templateRepo, generateRepo *Repository) error {
+	templateWebhooks, err := GetWebhooksByRepoID(templateRepo.ID)
+	if err != nil {
+		return err
+	}
+
+	for _, templateWebhook := range templateWebhooks {
+		generateWebhook := &Webhook{
+			RepoID:       generateRepo.ID,
+			URL:          templateWebhook.URL,
+			HTTPMethod:   templateWebhook.HTTPMethod,
+			ContentType:  templateWebhook.ContentType,
+			Secret:       templateWebhook.Secret,
+			HookEvent:    templateWebhook.HookEvent,
+			IsActive:     templateWebhook.IsActive,
+			HookTaskType: templateWebhook.HookTaskType,
+			OrgID:        templateWebhook.OrgID,
+			Events:       templateWebhook.Events,
+			Meta:         templateWebhook.Meta,
+		}
+		if err := createWebhook(ctx.e, generateWebhook); err != nil {
+			return err
+		}
+	}
+	return nil
+}
diff --git a/modules/auth/repo_form.go b/modules/auth/repo_form.go
index 2602dc42eb..1ca9dd1de9 100644
--- a/modules/auth/repo_form.go
+++ b/modules/auth/repo_form.go
@@ -40,6 +40,8 @@ type CreateRepoForm struct {
 	RepoTemplate int64
 	GitContent   bool
 	Topics       bool
+	GitHooks     bool
+	Webhooks     bool
 }
 
 // Validate validates the fields
diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 60d0cfcd7e..3a209f6214 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -637,6 +637,9 @@ reactions_more = and %d more
 
 template.items = Template Items
 template.git_content = Git Content (Default Branch)
+template.git_hooks = Git Hooks
+template.git_hooks_tooltip = You are currently unable to modify or remove git hooks once added. Select this only if you trust the template repository.
+template.webhooks = Webhooks
 template.topics = Topics
 template.one_item = Must select at least one template item
 template.invalid = Must select a template repository
diff --git a/routers/repo/repo.go b/routers/repo/repo.go
index e4bc6d2443..2c97216406 100644
--- a/routers/repo/repo.go
+++ b/routers/repo/repo.go
@@ -188,6 +188,8 @@ func CreatePost(ctx *context.Context, form auth.CreateRepoForm) {
 			Private:     form.Private,
 			GitContent:  form.GitContent,
 			Topics:      form.Topics,
+			GitHooks:    form.GitHooks,
+			Webhooks:    form.Webhooks,
 		}
 
 		if !opts.IsValid() {
diff --git a/services/repository/generate.go b/services/repository/generate.go
new file mode 100644
index 0000000000..bd7fd0ce11
--- /dev/null
+++ b/services/repository/generate.go
@@ -0,0 +1,63 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package repository
+
+import (
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/notification"
+)
+
+// GenerateRepository generates a repository from a template
+func GenerateRepository(doer, owner *models.User, templateRepo *models.Repository, opts models.GenerateRepoOptions) (_ *models.Repository, err error) {
+	var generateRepo *models.Repository
+	if err = models.WithTx(func(ctx models.DBContext) error {
+		generateRepo, err = models.GenerateRepository(ctx, doer, owner, templateRepo, opts)
+		if err != nil {
+			return err
+		}
+
+		// Git Content
+		if opts.GitContent && !templateRepo.IsEmpty {
+			if err = models.GenerateGitContent(ctx, templateRepo, generateRepo); err != nil {
+				return err
+			}
+		}
+
+		// Topics
+		if opts.Topics {
+			if err = models.GenerateTopics(ctx, templateRepo, generateRepo); err != nil {
+				return err
+			}
+		}
+
+		// Git Hooks
+		if opts.GitHooks {
+			if err = models.GenerateGitHooks(ctx, templateRepo, generateRepo); err != nil {
+				return err
+			}
+		}
+
+		// Webhooks
+		if opts.Webhooks {
+			if err = models.GenerateWebhooks(ctx, templateRepo, generateRepo); err != nil {
+				return err
+			}
+		}
+
+		return nil
+	}); err != nil {
+		if generateRepo != nil {
+			if errDelete := models.DeleteRepository(doer, owner.ID, generateRepo.ID); errDelete != nil {
+				log.Error("Rollback deleteRepository: %v", errDelete)
+			}
+		}
+		return nil, err
+	}
+
+	notification.NotifyCreateRepository(doer, owner, generateRepo)
+
+	return generateRepo, nil
+}
diff --git a/services/repository/repository.go b/services/repository/repository.go
index b1156b41d5..5135435c78 100644
--- a/services/repository/repository.go
+++ b/services/repository/repository.go
@@ -44,21 +44,6 @@ func ForkRepository(doer, u *models.User, oldRepo *models.Repository, name, desc
 	return repo, nil
 }
 
-// GenerateRepository generates a repository from a template
-func GenerateRepository(doer, u *models.User, oldRepo *models.Repository, opts models.GenerateRepoOptions) (*models.Repository, error) {
-	repo, err := models.GenerateRepository(doer, u, oldRepo, opts)
-	if err != nil {
-		if repo != nil {
-			if errDelete := models.DeleteRepository(doer, u.ID, repo.ID); errDelete != nil {
-				log.Error("Rollback deleteRepository: %v", errDelete)
-			}
-		}
-		return nil, err
-	}
-
-	return repo, nil
-}
-
 // DeleteRepository deletes a repository for a user or organization.
 func DeleteRepository(doer *models.User, repo *models.Repository) error {
 	if err := models.DeleteRepository(doer, repo.OwnerID, repo.ID); err != nil {
diff --git a/templates/repo/create.tmpl b/templates/repo/create.tmpl
index f728a93631..69f2abb687 100644
--- a/templates/repo/create.tmpl
+++ b/templates/repo/create.tmpl
@@ -72,10 +72,18 @@
 								<input class="hidden" name="git_content" type="checkbox" tabindex="0" {{if .git_content}}checked{{end}}>
 								<label>{{.i18n.Tr "repo.template.git_content"}}</label>
 							</div>
+							<div class="ui checkbox" {{if not .SignedUser.CanEditGitHook}}data-tooltip="{{.i18n.Tr "repo.template.git_hooks_tooltip"}}"{{end}}>
+								<input class="hidden" name="git_hooks" type="checkbox" tabindex="0" {{if .git_hooks}}checked{{end}}>
+								<label>{{.i18n.Tr "repo.template.git_hooks"}}</label>
+							</div>
 						</div>
 						<div class="inline field">
 							<label></label>
 							<div class="ui checkbox">
+								<input class="hidden" name="webhooks" type="checkbox" tabindex="0" {{if .webhooks}}checked{{end}}>
+								<label>{{.i18n.Tr "repo.template.webhooks"}}</label>
+							</div>
+							<div class="ui checkbox">
 								<input class="hidden" name="topics" type="checkbox" tabindex="0" {{if .topics}}checked{{end}}>
 								<label>{{.i18n.Tr "repo.template.topics"}}</label>
 							</div>