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forgejo/models/repo/star.go
Michael Jerger 992fbf6898 comments
2024-03-28 07:44:22 +01:00

167 lines
4.8 KiB
Go

// Copyright 2016 The Gitea Authors. All rights reserved.
// Copyright 2024 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repo
import (
"context"
"time"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/forgefed"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/activitypub"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
)
// Star represents a starred repo by an user.
type Star struct {
ID int64 `xorm:"pk autoincr"`
UID int64 `xorm:"UNIQUE(s)"`
RepoID int64 `xorm:"UNIQUE(s)"`
CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
}
func init() {
db.RegisterModel(new(Star))
}
func StarRepo(ctx context.Context, userID, repoID int64, star bool) error {
if err := starLocalRepo(ctx, userID, repoID, star); err != nil {
return err
}
if star && setting.Federation.Enabled {
if err := sendLikeActivities(ctx, userID, repoID); err != nil {
return err
}
}
return nil
}
// StarRepo or unstar repository.
func starLocalRepo(ctx context.Context, userID, repoID int64, star bool) error {
ctx, committer, err := db.TxContext(ctx)
if err != nil {
return err
}
defer committer.Close()
staring := IsStaring(ctx, userID, repoID)
if star {
if staring {
return nil
}
if err := db.Insert(ctx, &Star{UID: userID, RepoID: repoID}); err != nil {
return err
}
if _, err := db.Exec(ctx, "UPDATE `repository` SET num_stars = num_stars + 1 WHERE id = ?", repoID); err != nil {
return err
}
if _, err := db.Exec(ctx, "UPDATE `user` SET num_stars = num_stars + 1 WHERE id = ?", userID); err != nil {
return err
}
} else {
if !staring {
return nil
}
if _, err := db.DeleteByBean(ctx, &Star{UID: userID, RepoID: repoID}); err != nil {
return err
}
if _, err := db.Exec(ctx, "UPDATE `repository` SET num_stars = num_stars - 1 WHERE id = ?", repoID); err != nil {
return err
}
if _, err := db.Exec(ctx, "UPDATE `user` SET num_stars = num_stars - 1 WHERE id = ?", userID); err != nil {
return err
}
}
return committer.Commit()
}
// ToDo: Move to federation service or simillar
func sendLikeActivities(ctx context.Context, userID int64, repoID int64) error {
// TODO: is user loading necessary here? - imho no!
log.Info("User ID: %v, Repo ID: %v", userID, repoID)
user, err := user_model.GetUserByID(ctx, userID)
log.Info("User is: %v", user)
if err != nil {
return err
}
federatedRepos, err := FindFederatedReposByRepoID(ctx, repoID)
log.Info("Federated Repos is: %v", federatedRepos)
if err != nil {
return err
}
// TODO: That's wrong - we've to send the activities to repo not to user!
apclient, err := activitypub.NewClient(ctx, user, user.APAPIURL())
if err != nil {
return err
}
for _, federatedRepo := range federatedRepos {
target := federatedRepo.Uri + "/inbox/" // A like goes to the inbox of the federated repo
log.Info("Federated Repo URI is: %v", target)
likeActivity, err := forgefed.NewForgeLike(user.APAPIURL(), target, time.Now())
if err != nil {
return err
}
log.Info("Like Activity: %v", likeActivity)
json, err := likeActivity.MarshalJSON()
if err != nil {
return err
}
// TODO: decouple loading & creating activities from sending them - use two loops.
// TODO: set timeouts for outgoing request in oder to mitigate DOS by slow lories
// TODO: Check if we need to respect rate limits
// ToDo: Change this to the standalone table of FederatedRepos
apclient.Post([]byte(json), target)
}
return nil
}
// IsStaring checks if user has starred given repository.
func IsStaring(ctx context.Context, userID, repoID int64) bool {
has, _ := db.GetEngine(ctx).Get(&Star{UID: userID, RepoID: repoID})
return has
}
// GetStargazers returns the users that starred the repo.
func GetStargazers(ctx context.Context, repo *Repository, opts db.ListOptions) ([]*user_model.User, error) {
sess := db.GetEngine(ctx).Where("star.repo_id = ?", repo.ID).
Join("LEFT", "star", "`user`.id = star.uid")
if opts.Page > 0 {
sess = db.SetSessionPagination(sess, &opts)
users := make([]*user_model.User, 0, opts.PageSize)
return users, sess.Find(&users)
}
users := make([]*user_model.User, 0, 8)
return users, sess.Find(&users)
}
// ClearRepoStars clears all stars for a repository and from the user that starred it.
// Used when a repository is set to private.
func ClearRepoStars(ctx context.Context, repoID int64) error {
if _, err := db.Exec(ctx, "UPDATE `user` SET num_stars=num_stars-1 WHERE id IN (SELECT `uid` FROM `star` WHERE repo_id = ?)", repoID); err != nil {
return err
}
if _, err := db.Exec(ctx, "UPDATE `repository` SET num_stars = 0 WHERE id = ?", repoID); err != nil {
return err
}
return db.DeleteBeans(ctx, Star{RepoID: repoID})
}