mirror of
https://codeberg.org/forgejo/forgejo.git
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245 lines
7.1 KiB
Go
245 lines
7.1 KiB
Go
// Copyright 2023 The forgejo Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package activitypub
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import (
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"fmt"
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"io"
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"net/http"
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"strings"
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"time"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/models/forgefed"
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repo_model "code.gitea.io/gitea/models/repo"
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user_model "code.gitea.io/gitea/models/user"
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api "code.gitea.io/gitea/modules/activitypub"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/modules/web"
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"github.com/google/uuid"
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ap "github.com/go-ap/activitypub"
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pwd_gen "github.com/sethvargo/go-password/password"
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)
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// TODO: Move this to model.user.search ? or to model.user.externalLoginUser ?
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func SearchUsersByLoginName(loginName string) ([]*user_model.User, error) {
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var actionsUser = user_model.NewActionsUser()
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actionsUser.IsAdmin = true
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options := &user_model.SearchUserOptions{
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LoginName: loginName,
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Actor: actionsUser,
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Type: user_model.UserTypeRemoteUser,
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OrderBy: db.SearchOrderByAlphabetically,
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ListOptions: db.ListOptions{PageSize: 1},
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IsActive: util.OptionalBoolFalse,
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IncludeReserved: true,
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}
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users, _, err := user_model.SearchUsers(db.DefaultContext, options)
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if err != nil {
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return []*user_model.User{}, fmt.Errorf("search failed: %v", err)
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}
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log.Info("local found users: %v", len(users))
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return users, nil
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}
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// Repository function returns the Repository actor for a repo
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func Repository(ctx *context.APIContext) {
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// swagger:operation GET /activitypub/repository-id/{repository-id} activitypub activitypubRepository
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// ---
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// summary: Returns the Repository actor for a repo
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// produces:
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// - application/json
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// parameters:
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// - name: repository-id
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// in: path
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// description: repository ID of the repo
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// type: integer
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// required: true
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// responses:
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// "200":
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// "$ref": "#/responses/ActivityPub"
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link := fmt.Sprintf("%s/api/v1/activitypub/repository-id/%d", strings.TrimSuffix(setting.AppURL, "/"), ctx.Repo.Repository.ID)
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repo := forgefed.RepositoryNew(ap.IRI(link))
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repo.Name = ap.NaturalLanguageValuesNew()
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err := repo.Name.Set("en", ap.Content(ctx.Repo.Repository.Name))
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if err != nil {
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ctx.ServerError("Set Name", err)
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return
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}
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response(ctx, repo)
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}
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// PersonInbox function handles the incoming data for a repository inbox
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func RepositoryInbox(ctx *context.APIContext) {
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// swagger:operation POST /activitypub/repository-id/{repository-id}/inbox activitypub activitypubRepository
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// ---
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// summary: Send to the inbox
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// produces:
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// - application/json
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// parameters:
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// - name: repository-id
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// in: path
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// description: repository ID of the repo
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// type: integer
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// required: true
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// - name: body
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// in: body
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// schema:
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// "$ref": "#/definitions/Star"
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// responses:
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// "204":
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// "$ref": "#/responses/empty"
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var user *user_model.User
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repository := ctx.Repo.Repository
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log.Info("RepositoryInbox: repo: %v, owned by: %v", repository.Name, repository.OwnerName)
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activity := web.GetForm(ctx).(*forgefed.Star)
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log.Info("RepositoryInbox: Activity.Source: %v, Activity.Actor %v, Activity.Actor.Id %v", activity.Source, activity.Actor, activity.Actor.GetID().String())
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// parse actorId (person)
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actorId, err := forgefed.NewPersonId(activity.Actor.GetID().String(), string(activity.Source))
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if err != nil {
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ctx.ServerError("Validate actorId", err)
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return
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}
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log.Info("RepositoryInbox: actorId validated: %v", actorId)
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// parse objectId (repository)
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objectId, err := forgefed.NewRepositoryId(activity.Object.GetID().String(), string(activity.Source))
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if err != nil {
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ctx.ServerError("Validate objectId", err)
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return
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}
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if objectId.Id != fmt.Sprint(repository.ID) {
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ctx.ServerError("Validate objectId", err)
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return
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}
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log.Info("RepositoryInbox: objectId validated: %v", objectId)
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adctorAsWebfinger := actorId.AsWebfinger() // used as LoginName in newly created user
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log.Info("remotStargazer: %v", adctorAsWebfinger)
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// Check if user already exists
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users, err := SearchUsersByLoginName(adctorAsWebfinger)
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if err != nil {
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ctx.ServerError(fmt.Sprintf("Searching for user failed: %v"), err)
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return
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}
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switch len(users) {
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case 0:
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{
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user, err := createUserFromAP(ctx, actorId)
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if err != nil {
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ctx.ServerError(fmt.Sprintf("Searching for user failed: %v"), err)
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return
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}
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log.Info("created user from ap: %v", user)
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}
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case 1:
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{
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user = users[0]
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log.Info("found user: %v", user)
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}
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default:
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{
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ctx.Error(http.StatusInternalServerError, "StarRepo", fmt.Errorf("found more than one matches for federated users"))
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return
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}
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}
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// TODO: why should we search user for a second time from db?
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remoteUser, err := user_model.GetUserByEmail(ctx, user.Email)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "StarRepo", err)
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return
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}
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// check if already starred by this user
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alreadyStared := repo_model.IsStaring(ctx, remoteUser.ID, repository.ID)
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switch alreadyStared {
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case true: // execute unstar action
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{
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err = repo_model.StarRepo(ctx, remoteUser.ID, repository.ID, false)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "StarRepo", err)
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return
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}
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}
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case false: // execute star action
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{
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err = repo_model.StarRepo(ctx, remoteUser.ID, repository.ID, true)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "StarRepo", err)
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return
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}
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}
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}
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// wait 5 sec.
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time.Sleep(5 * time.Second)
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ctx.Status(http.StatusNoContent)
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}
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func createUserFromAP(ctx *context.APIContext, actorId forgefed.PersonId) (*user_model.User, error) {
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// ToDo: Do we get a publicKeyId from server, repo or owner or repo?
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var actionsUser = user_model.NewActionsUser()
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client, err := api.NewClient(ctx, actionsUser, "no ide where to get key material.")
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if err != nil {
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return &user_model.User{}, err
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}
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response, err := client.Get(actorId.AsUri())
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if err != nil {
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return &user_model.User{}, err
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}
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defer response.Body.Close()
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body, err := io.ReadAll(response.Body)
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if err != nil {
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return &user_model.User{}, err
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}
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person := ap.Person{}
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err = person.UnmarshalJSON(body)
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if err != nil {
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return &user_model.User{}, err
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}
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email := fmt.Sprintf("%v@%v", uuid.New().String(), actorId.Host)
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loginName := actorId.AsWebfinger()
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password, err := pwd_gen.Generate(32, 10, 10, false, true)
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if err != nil {
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return &user_model.User{}, err
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}
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user := &user_model.User{
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LowerName: strings.ToLower(person.Name.String()),
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Name: person.Name.String(),
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Email: email,
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EmailNotificationsPreference: "disabled",
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Passwd: password,
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MustChangePassword: false,
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LoginName: loginName,
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Type: user_model.UserTypeRemoteUser,
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IsAdmin: false,
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}
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overwrite := &user_model.CreateUserOverwriteOptions{
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IsActive: util.OptionalBoolFalse,
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IsRestricted: util.OptionalBoolFalse,
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}
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if err := user_model.CreateUser(ctx, user, overwrite); err != nil {
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return &user_model.User{}, err
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}
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return user, nil
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}
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