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// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package user
import (
"context"
"fmt"
"time"
_ "image/jpeg" // Needed for jpeg support
actions_model "code.gitea.io/gitea/models/actions"
activities_model "code.gitea.io/gitea/models/activities"
asymkey_model "code.gitea.io/gitea/models/asymkey"
auth_model "code.gitea.io/gitea/models/auth"
"code.gitea.io/gitea/models/db"
git_model "code.gitea.io/gitea/models/git"
issues_model "code.gitea.io/gitea/models/issues"
"code.gitea.io/gitea/models/organization"
access_model "code.gitea.io/gitea/models/perm/access"
pull_model "code.gitea.io/gitea/models/pull"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/setting"
issue_service "code.gitea.io/gitea/services/issue"
"xorm.io/builder"
)
// deleteUser deletes models associated to an user.
func deleteUser(ctx context.Context, u *user_model.User, purge bool) (err error) {
e := db.GetEngine(ctx)
// ***** START: Watch *****
watchedRepoIDs, err := db.FindIDs(ctx, "watch", "watch.repo_id",
builder.Eq{"watch.user_id": u.ID}.
And(builder.Neq{"watch.mode": repo_model.WatchModeDont}))
if err != nil {
return fmt.Errorf("get all watches: %w", err)
}
if err = db.DecrByIDs(ctx, watchedRepoIDs, "num_watches", new(repo_model.Repository)); err != nil {
return fmt.Errorf("decrease repository num_watches: %w", err)
}
// ***** END: Watch *****
// ***** START: Star *****
starredRepoIDs, err := db.FindIDs(ctx, "star", "star.repo_id",
builder.Eq{"star.uid": u.ID})
if err != nil {
return fmt.Errorf("get all stars: %w", err)
} else if err = db.DecrByIDs(ctx, starredRepoIDs, "num_stars", new(repo_model.Repository)); err != nil {
return fmt.Errorf("decrease repository num_stars: %w", err)
}
// ***** END: Star *****
// ***** START: Follow *****
followeeIDs, err := db.FindIDs(ctx, "follow", "follow.follow_id",
builder.Eq{"follow.user_id": u.ID})
if err != nil {
return fmt.Errorf("get all followees: %w", err)
} else if err = db.DecrByIDs(ctx, followeeIDs, "num_followers", new(user_model.User)); err != nil {
return fmt.Errorf("decrease user num_followers: %w", err)
}
followerIDs, err := db.FindIDs(ctx, "follow", "follow.user_id",
builder.Eq{"follow.follow_id": u.ID})
if err != nil {
return fmt.Errorf("get all followers: %w", err)
} else if err = db.DecrByIDs(ctx, followerIDs, "num_following", new(user_model.User)); err != nil {
return fmt.Errorf("decrease user num_following: %w", err)
}
// ***** END: Follow *****
if err = db.DeleteBeans(ctx,
&auth_model.AccessToken{UID: u.ID},
&repo_model.Collaboration{UserID: u.ID},
&access_model.Access{UserID: u.ID},
&repo_model.Watch{UserID: u.ID},
&repo_model.Star{UID: u.ID},
&user_model.Follow{UserID: u.ID},
&user_model.Follow{FollowID: u.ID},
&activities_model.Action{UserID: u.ID},
&issues_model.IssueUser{UID: u.ID},
&user_model.EmailAddress{UID: u.ID},
&user_model.UserOpenID{UID: u.ID},
&issues_model.Reaction{UserID: u.ID},
&organization.TeamUser{UID: u.ID},
&issues_model.Stopwatch{UserID: u.ID},
&user_model.Setting{UserID: u.ID},
&user_model.UserBadge{UserID: u.ID},
&pull_model.AutoMerge{DoerID: u.ID},
&pull_model.ReviewState{UserID: u.ID},
&user_model.Redirect{RedirectUserID: u.ID},
&actions_model.ActionRunner{OwnerID: u.ID},
&user_model.BlockedUser{BlockID: u.ID},
&user_model.BlockedUser{UserID: u.ID},
&actions_model.ActionRunnerToken{OwnerID: u.ID},
); err != nil {
return fmt.Errorf("deleteBeans: %w", err)
}
if err := auth_model.DeleteOAuth2RelictsByUserID(ctx, u.ID); err != nil {
return err
}
if purge || (setting.Service.UserDeleteWithCommentsMaxTime != 0 &&
u.CreatedUnix.AsTime().Add(setting.Service.UserDeleteWithCommentsMaxTime).After(time.Now())) {
// Delete Comments
const batchSize = 50
for {
comments := make([]*issues_model.Comment, 0, batchSize)
if err = e.Where("type=? AND poster_id=?", issues_model.CommentTypeComment, u.ID).Limit(batchSize, 0).Find(&comments); err != nil {
return err
}
if len(comments) == 0 {
break
}
for _, comment := range comments {
if err = issues_model.DeleteComment(ctx, comment); err != nil {
return err
}
}
}
// Delete Reactions
if err = issues_model.DeleteReaction(ctx, &issues_model.ReactionOptions{DoerID: u.ID}); err != nil {
return err
}
}
// ***** START: Issues *****
if purge {
const batchSize = 50
for {
issues := make([]*issues_model.Issue, 0, batchSize)
if err = e.Where("poster_id=?", u.ID).Limit(batchSize, 0).Find(&issues); err != nil {
return err
}
if len(issues) == 0 {
break
}
for _, issue := range issues {
// NOTE: Don't open git repositories just to remove the reference data,
// `git gc` is able to remove that reference which is run as a cron job
// by default. Also use the deleted user as doer to delete the issue.
if err = issue_service.DeleteIssue(ctx, u, nil, issue); err != nil {
return err
}
}
}
}
// ***** END: Issues *****
// ***** START: Branch Protections *****
{
const batchSize = 50
for start := 0; ; start += batchSize {
protections := make([]*git_model.ProtectedBranch, 0, batchSize)
// @perf: We can't filter on DB side by u.ID, as those IDs are serialized as JSON strings.
// We could filter down with `WHERE repo_id IN (reposWithPushPermission(u))`,
// though that query will be quite complex and tricky to maintain (compare `getRepoAssignees()`).
// Also, as we didn't update branch protections when removing entries from `access` table,
// it's safer to iterate all protected branches.
if err = e.Limit(batchSize, start).Find(&protections); err != nil {
return fmt.Errorf("findProtectedBranches: %w", err)
}
if len(protections) == 0 {
break
}
for _, p := range protections {
if err := git_model.RemoveUserIDFromProtectedBranch(ctx, p, u.ID); err != nil {
return err
}
}
}
}
// ***** END: Branch Protections *****
// ***** START: PublicKey *****
if _, err = db.DeleteByBean(ctx, &asymkey_model.PublicKey{OwnerID: u.ID}); err != nil {
return fmt.Errorf("deletePublicKeys: %w", err)
}
// ***** END: PublicKey *****
// ***** START: GPGPublicKey *****
keys, err := db.Find[asymkey_model.GPGKey](ctx, asymkey_model.FindGPGKeyOptions{
OwnerID: u.ID,
})
if err != nil {
return fmt.Errorf("ListGPGKeys: %w", err)
}
// Delete GPGKeyImport(s).
for _, key := range keys {
if _, err = db.DeleteByBean(ctx, &asymkey_model.GPGKeyImport{KeyID: key.KeyID}); err != nil {
return fmt.Errorf("deleteGPGKeyImports: %w", err)
}
}
if _, err = db.DeleteByBean(ctx, &asymkey_model.GPGKey{OwnerID: u.ID}); err != nil {
return fmt.Errorf("deleteGPGKeys: %w", err)
}
// ***** END: GPGPublicKey *****
// Clear assignee.
if _, err = db.DeleteByBean(ctx, &issues_model.IssueAssignees{AssigneeID: u.ID}); err != nil {
return fmt.Errorf("clear assignee: %w", err)
}
// ***** START: ExternalLoginUser *****
if err = user_model.RemoveAllAccountLinks(ctx, u); err != nil {
return fmt.Errorf("ExternalLoginUser: %w", err)
}
// ***** END: ExternalLoginUser *****
if _, err = db.DeleteByID[user_model.User](ctx, u.ID); err != nil {
return fmt.Errorf("delete: %w", err)
}
return nil
}
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