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96 lines
3.3 KiB
Go
96 lines
3.3 KiB
Go
// Copyright 2025 The Forgejo Authors. All rights reserved.
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// SPDX-License-Identifier: GPL-3.0-or-later
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package user
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import (
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"context"
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"reflect"
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"slices"
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"code.gitea.io/gitea/models/moderation"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/timeutil"
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"xorm.io/xorm/names"
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)
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// UserData represents a trimmed down user that is used for preserving
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// only the fields needed for abusive content reports (mainly string fields).
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type UserData struct {
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Name string
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FullName string
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Email string
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LoginName string
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Location string
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Website string
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Pronouns string
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Description string
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CreatedUnix timeutil.TimeStamp
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UpdatedUnix timeutil.TimeStamp
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// This field was intentionally renamed so that is not the same with the one from User struct.
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// If we keep it the same as in User, during login it might trigger the creation of a shadow copy.
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// TODO: Should we decide that this field is not that relevant for abuse reporting purposes, better remove it.
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LastLogin timeutil.TimeStamp `json:"LastLoginUnix"`
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Avatar string
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AvatarEmail string
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}
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// newUserData creates a trimmed down user to be used just to create a JSON structure
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// (keeping only the fields relevant for moderation purposes)
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func newUserData(user *User) UserData {
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return UserData{
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Name: user.Name,
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FullName: user.FullName,
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Email: user.Email,
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LoginName: user.LoginName,
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Location: user.Location,
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Website: user.Website,
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Pronouns: user.Pronouns,
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Description: user.Description,
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CreatedUnix: user.CreatedUnix,
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UpdatedUnix: user.UpdatedUnix,
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LastLogin: user.LastLoginUnix,
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Avatar: user.Avatar,
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AvatarEmail: user.AvatarEmail,
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}
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}
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// IfNeededCreateShadowCopyForUser checks if for the given user there are any reports of abusive content submitted
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// and if found a shadow copy of relevant user fields will be stored into DB and linked to the above report(s).
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// This function should be called when a user is deleted or updated.
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//
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// For deletions alteredCols argument must be omitted.
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//
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// In case of updates it will first checks whether any of the columns being updated (alteredCols argument)
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// is relevant for moderation purposes (i.e. included in the UserData struct).
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func IfNeededCreateShadowCopyForUser(ctx context.Context, user *User, alteredCols ...string) error {
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// TODO: this can be triggered quite often (e.g. by routers/web/repo/middlewares.go SetDiffViewStyle())
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shouldCheckIfReported := len(alteredCols) == 0 // no columns being updated, therefore a deletion
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if !shouldCheckIfReported {
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// for updates we need to go further only if certain column are being changed
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mapper := new(names.GonicMapper)
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ucType := reflect.TypeOf(UserData{})
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for i := 0; i < ucType.NumField(); i++ {
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field := ucType.Field(i)
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// get the corresponding column name for a field name (e.g. FieldName -> field_name).
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colName := mapper.Obj2Table(field.Name)
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if shouldCheckIfReported = slices.Contains(alteredCols, colName); shouldCheckIfReported {
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break
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}
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}
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}
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if shouldCheckIfReported && moderation.IsReported(ctx, moderation.ReportedContentTypeUser, user.ID) {
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userData := newUserData(user)
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content, err := json.Marshal(userData)
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if err != nil {
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return err
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}
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return moderation.CreateShadowCopyForUser(ctx, user.ID, string(content))
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}
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return nil
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}
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