RSS/Atom support for Repos (#19055)

* support for repos
* refactor
* advertise the feeds via meta tags
* allow feed suffix and feed header
* optimize performance

5 files changed, 94 insertions, 43 deletions

diff --git a/models/action.go b/models/action.go
index f2723a2014..e9f5138b40 100644
--- a/models/action.go
+++ b/models/action.go
@@ -328,7 +328,7 @@ type GetFeedsOptions struct {
 }
 
 // GetFeeds returns actions according to the provided options
-func GetFeeds(opts GetFeedsOptions) ([]*Action, error) {
+func GetFeeds(ctx context.Context, opts GetFeedsOptions) (ActionList, error) {
 	if opts.RequestedUser == nil && opts.RequestedTeam == nil && opts.RequestedRepo == nil {
 		return nil, fmt.Errorf("need at least one of these filters: RequestedUser, RequestedTeam, RequestedRepo")
 	}
@@ -338,7 +338,8 @@ func GetFeeds(opts GetFeedsOptions) ([]*Action, error) {
 		return nil, err
 	}
 
-	sess := db.GetEngine(db.DefaultContext).Where(cond)
+	e := db.GetEngine(ctx)
+	sess := e.Where(cond)
 
 	opts.SetDefaultValues()
 	sess = db.SetSessionPagination(sess, &opts)
@@ -349,7 +350,7 @@ func GetFeeds(opts GetFeedsOptions) ([]*Action, error) {
 		return nil, fmt.Errorf("Find: %v", err)
 	}
 
-	if err := ActionList(actions).LoadAttributes(); err != nil {
+	if err := ActionList(actions).loadAttributes(e); err != nil {
 		return nil, fmt.Errorf("LoadAttributes: %v", err)
 	}
 
diff --git a/models/action_list.go b/models/action_list.go
index 3f52d3cd5e..ce621753a4 100644
--- a/models/action_list.go
+++ b/models/action_list.go
@@ -25,7 +25,7 @@ func (actions ActionList) getUserIDs() []int64 {
 	return keysInt64(userIDs)
 }
 
-func (actions ActionList) loadUsers(e db.Engine) ([]*user_model.User, error) {
+func (actions ActionList) loadUsers(e db.Engine) (map[int64]*user_model.User, error) {
 	if len(actions) == 0 {
 		return nil, nil
 	}
@@ -42,12 +42,7 @@ func (actions ActionList) loadUsers(e db.Engine) ([]*user_model.User, error) {
 	for _, action := range actions {
 		action.ActUser = userMaps[action.ActUserID]
 	}
-	return valuesUser(userMaps), nil
-}
-
-// LoadUsers loads actions' all users
-func (actions ActionList) LoadUsers() ([]*user_model.User, error) {
-	return actions.loadUsers(db.GetEngine(db.DefaultContext))
+	return userMaps, nil
 }
 
 func (actions ActionList) getRepoIDs() []int64 {
@@ -60,45 +55,57 @@ func (actions ActionList) getRepoIDs() []int64 {
 	return keysInt64(repoIDs)
 }
 
-func (actions ActionList) loadRepositories(e db.Engine) ([]*repo_model.Repository, error) {
+func (actions ActionList) loadRepositories(e db.Engine) error {
 	if len(actions) == 0 {
-		return nil, nil
+		return nil
 	}
 
 	repoIDs := actions.getRepoIDs()
 	repoMaps := make(map[int64]*repo_model.Repository, len(repoIDs))
-	err := e.
-		In("id", repoIDs).
-		Find(&repoMaps)
+	err := e.In("id", repoIDs).Find(&repoMaps)
 	if err != nil {
-		return nil, fmt.Errorf("find repository: %v", err)
+		return fmt.Errorf("find repository: %v", err)
 	}
 
 	for _, action := range actions {
 		action.Repo = repoMaps[action.RepoID]
 	}
-	return valuesRepository(repoMaps), nil
-}
-
-// LoadRepositories loads actions' all repositories
-func (actions ActionList) LoadRepositories() ([]*repo_model.Repository, error) {
-	return actions.loadRepositories(db.GetEngine(db.DefaultContext))
+	return nil
 }
 
-// loadAttributes loads all attributes
-func (actions ActionList) loadAttributes(e db.Engine) (err error) {
-	if _, err = actions.loadUsers(e); err != nil {
-		return
+func (actions ActionList) loadRepoOwner(e db.Engine, userMap map[int64]*user_model.User) (err error) {
+	if userMap == nil {
+		userMap = make(map[int64]*user_model.User)
 	}
 
-	if _, err = actions.loadRepositories(e); err != nil {
-		return
+	for _, action := range actions {
+		repoOwner, ok := userMap[action.Repo.OwnerID]
+		if !ok {
+			repoOwner, err = user_model.GetUserByID(action.Repo.OwnerID)
+			if err != nil {
+				if user_model.IsErrUserNotExist(err) {
+					continue
+				}
+				return err
+			}
+			userMap[repoOwner.ID] = repoOwner
+		}
+		action.Repo.Owner = repoOwner
 	}
 
 	return nil
 }
 
-// LoadAttributes loads attributes of the actions
-func (actions ActionList) LoadAttributes() error {
-	return actions.loadAttributes(db.GetEngine(db.DefaultContext))
+// loadAttributes loads all attributes
+func (actions ActionList) loadAttributes(e db.Engine) error {
+	userMap, err := actions.loadUsers(e)
+	if err != nil {
+		return err
+	}
+
+	if err := actions.loadRepositories(e); err != nil {
+		return err
+	}
+
+	return actions.loadRepoOwner(e, userMap)
 }
diff --git a/models/action_test.go b/models/action_test.go
index 0ce9183b96..e247a5ec29 100644
--- a/models/action_test.go
+++ b/models/action_test.go
@@ -8,6 +8,7 @@ import (
 	"path"
 	"testing"
 
+	"code.gitea.io/gitea/models/db"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unittest"
 	user_model "code.gitea.io/gitea/models/user"
@@ -39,7 +40,7 @@ func TestGetFeeds(t *testing.T) {
 	assert.NoError(t, unittest.PrepareTestDatabase())
 	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2}).(*user_model.User)
 
-	actions, err := GetFeeds(GetFeedsOptions{
+	actions, err := GetFeeds(db.DefaultContext, GetFeedsOptions{
 		RequestedUser:   user,
 		Actor:           user,
 		IncludePrivate:  true,
@@ -52,7 +53,7 @@ func TestGetFeeds(t *testing.T) {
 		assert.EqualValues(t, user.ID, actions[0].UserID)
 	}
 
-	actions, err = GetFeeds(GetFeedsOptions{
+	actions, err = GetFeeds(db.DefaultContext, GetFeedsOptions{
 		RequestedUser:   user,
 		Actor:           user,
 		IncludePrivate:  false,
@@ -62,13 +63,54 @@ func TestGetFeeds(t *testing.T) {
 	assert.Len(t, actions, 0)
 }
 
+func TestGetFeedsForRepos(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2}).(*user_model.User)
+	privRepo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2}).(*repo_model.Repository)
+	pubRepo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 8}).(*repo_model.Repository)
+
+	// private repo & no login
+	actions, err := GetFeeds(db.DefaultContext, GetFeedsOptions{
+		RequestedRepo:  privRepo,
+		IncludePrivate: true,
+	})
+	assert.NoError(t, err)
+	assert.Len(t, actions, 0)
+
+	// public repo & no login
+	actions, err = GetFeeds(db.DefaultContext, GetFeedsOptions{
+		RequestedRepo:  pubRepo,
+		IncludePrivate: true,
+	})
+	assert.NoError(t, err)
+	assert.Len(t, actions, 1)
+
+	// private repo and login
+	actions, err = GetFeeds(db.DefaultContext, GetFeedsOptions{
+		RequestedRepo:  privRepo,
+		IncludePrivate: true,
+		Actor:          user,
+	})
+	assert.NoError(t, err)
+	assert.Len(t, actions, 1)
+
+	// public repo & login
+	actions, err = GetFeeds(db.DefaultContext, GetFeedsOptions{
+		RequestedRepo:  pubRepo,
+		IncludePrivate: true,
+		Actor:          user,
+	})
+	assert.NoError(t, err)
+	assert.Len(t, actions, 1)
+}
+
 func TestGetFeeds2(t *testing.T) {
 	// test with an organization user
 	assert.NoError(t, unittest.PrepareTestDatabase())
 	org := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3}).(*user_model.User)
 	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2}).(*user_model.User)
 
-	actions, err := GetFeeds(GetFeedsOptions{
+	actions, err := GetFeeds(db.DefaultContext, GetFeedsOptions{
 		RequestedUser:   org,
 		Actor:           user,
 		IncludePrivate:  true,
@@ -82,7 +124,7 @@ func TestGetFeeds2(t *testing.T) {
 		assert.EqualValues(t, org.ID, actions[0].UserID)
 	}
 
-	actions, err = GetFeeds(GetFeedsOptions{
+	actions, err = GetFeeds(db.DefaultContext, GetFeedsOptions{
 		RequestedUser:   org,
 		Actor:           user,
 		IncludePrivate:  false,
diff --git a/models/fixtures/action.yml b/models/fixtures/action.yml
index e3f3d2a971..e283b01db2 100644
--- a/models/fixtures/action.yml
+++ b/models/fixtures/action.yml
@@ -3,7 +3,7 @@
   user_id: 2
   op_type: 12 # close issue
   act_user_id: 2
-  repo_id: 2
+  repo_id: 2 # private
   is_private: true
   created_unix: 1603228283
 
@@ -12,7 +12,7 @@
   user_id: 3
   op_type: 2 # rename repo
   act_user_id: 2
-  repo_id: 3
+  repo_id: 3 # private
   is_private: true
   content: oldRepoName
 
@@ -21,7 +21,7 @@
   user_id: 11
   op_type: 1 # create repo
   act_user_id: 11
-  repo_id: 9
+  repo_id: 9 # public
   is_private: false
 
 -
@@ -29,7 +29,7 @@
   user_id: 16
   op_type: 12 # close issue
   act_user_id: 16
-  repo_id: 22
+  repo_id: 22 # private
   is_private: true
   created_unix: 1603267920
 
@@ -37,7 +37,7 @@
   user_id: 10
   op_type: 1 # create repo
   act_user_id: 10
-  repo_id: 6
+  repo_id: 6 # private
   is_private: true
   created_unix: 1603010100
 
@@ -45,7 +45,7 @@
   user_id: 10
   op_type: 1 # create repo
   act_user_id: 10
-  repo_id: 7
+  repo_id: 7 # private
   is_private: true
   created_unix: 1603011300
 
@@ -53,6 +53,6 @@
   user_id: 10
   op_type: 1 # create repo
   act_user_id: 10
-  repo_id: 8
+  repo_id: 8 # public
   is_private: false
   created_unix: 1603011540 # grouped with id:7
diff --git a/models/user_heatmap_test.go b/models/user_heatmap_test.go
index 7915363d95..9361cb3452 100644
--- a/models/user_heatmap_test.go
+++ b/models/user_heatmap_test.go
@@ -9,6 +9,7 @@ import (
 	"testing"
 	"time"
 
+	"code.gitea.io/gitea/models/db"
 	"code.gitea.io/gitea/models/unittest"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/json"
@@ -72,7 +73,7 @@ func TestGetUserHeatmapDataByUser(t *testing.T) {
 		}
 
 		// get the action for comparison
-		actions, err := GetFeeds(GetFeedsOptions{
+		actions, err := GetFeeds(db.DefaultContext, GetFeedsOptions{
 			RequestedUser:   user,
 			Actor:           doer,
 			IncludePrivate:  true,