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forgejo/routers/api/v1/activitypub/repository.go
2024-02-10 15:17:11 +01:00

267 lines
7.7 KiB
Go

// Copyright 2023 The forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package activitypub
// ToDo: Fix linting
// ToDo: Maybe do a request for the node info
// Then maybe save the node info in a DB table - this could be useful for validation
import (
"fmt"
"net/http"
"strings"
"time"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/forgefed"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
api "code.gitea.io/gitea/modules/activitypub"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/web"
"github.com/google/uuid"
ap "github.com/go-ap/activitypub"
pwd_gen "github.com/sethvargo/go-password/password"
)
// Repository function returns the Repository actor for a repo
func Repository(ctx *context.APIContext) {
// swagger:operation GET /activitypub/repository-id/{repository-id} activitypub activitypubRepository
// ---
// summary: Returns the Repository actor for a repo
// produces:
// - application/json
// parameters:
// - name: repository-id
// in: path
// description: repository ID of the repo
// type: integer
// required: true
// responses:
// "200":
// "$ref": "#/responses/ActivityPub"
link := fmt.Sprintf("%s/api/v1/activitypub/repository-id/%d", strings.TrimSuffix(setting.AppURL, "/"), ctx.Repo.Repository.ID)
repo := forgefed.RepositoryNew(ap.IRI(link))
repo.Name = ap.NaturalLanguageValuesNew()
err := repo.Name.Set("en", ap.Content(ctx.Repo.Repository.Name))
if err != nil {
ctx.ServerError("Set Name", err)
return
}
response(ctx, repo)
}
// PersonInbox function handles the incoming data for a repository inbox
func RepositoryInbox(ctx *context.APIContext) {
// swagger:operation POST /activitypub/repository-id/{repository-id}/inbox activitypub activitypubRepository
// ---
// summary: Send to the inbox
// produces:
// - application/json
// parameters:
// - name: repository-id
// in: path
// description: repository ID of the repo
// type: integer
// required: true
// - name: body
// in: body
// schema:
// "$ref": "#/definitions/Star"
// responses:
// "204":
// "$ref": "#/responses/empty"
var user *user_model.User
repository := ctx.Repo.Repository
log.Info("RepositoryInbox: repo: %v", repository)
activity := web.GetForm(ctx).(*forgefed.Star)
log.Info("RepositoryInbox: activity:%v", activity)
// parse actorID (person)
actorUri := activity.Actor.GetID().String()
rawActorID, err := forgefed.NewActorID(actorUri)
nodeInfo, err := createNodeInfo(ctx, rawActorID)
log.Info("RepositoryInbox: nodeInfo validated: %v", nodeInfo)
actorID, err := forgefed.NewPersonID(actorUri, string(nodeInfo.Source))
if err != nil {
ctx.ServerError("Validate actorId", err)
return
}
log.Info("RepositoryInbox: actorId validated: %v", actorID)
// parse objectID (repository)
objectID, err := forgefed.NewRepositoryID(activity.Object.GetID().String(), string(nodeInfo.Source))
if err != nil {
ctx.ServerError("Validate objectId", err)
return
}
if objectID.ID != fmt.Sprint(repository.ID) {
ctx.ServerError("Validate objectId", err)
return
}
log.Info("RepositoryInbox: objectId validated: %v", objectID)
actorAsLoginID := actorID.AsLoginName() // used as LoginName in newly created user
log.Info("RepositoryInbox: remoteStargazer: %v", actorAsLoginID)
// Check if user already exists
users, err := SearchUsersByLoginName(actorAsLoginID)
if err != nil {
ctx.ServerError("Searching for user failed", err)
return
}
log.Info("RepositoryInbox: local found users: %v", len(users))
switch len(users) {
case 0:
{
user, err = createUserFromAP(ctx, actorID)
if err != nil {
ctx.ServerError("Creating user failed", err)
return
}
log.Info("RepositoryInbox: created user from ap: %v", user)
}
case 1:
{
user = users[0]
log.Info("RepositoryInbox: found user: %v", user)
}
default:
{
ctx.Error(http.StatusInternalServerError, "StarRepo",
fmt.Errorf("found more than one matches for federated users"))
return
}
}
// execute the activity if the repo was not stared already
alreadyStared := repo_model.IsStaring(ctx, user.ID, repository.ID)
if !alreadyStared {
err = repo_model.StarRepo(ctx, user.ID, repository.ID, true)
if err != nil {
ctx.Error(http.StatusInternalServerError, "StarRepo", err)
return
}
}
// wait 5 sec.
time.Sleep(5 * time.Second)
ctx.Status(http.StatusNoContent)
}
// TODO: Move this to model.user.search ? or to model.user.externalLoginUser ?
func SearchUsersByLoginName(loginName string) ([]*user_model.User, error) {
actionsUser := user_model.NewActionsUser()
actionsUser.IsAdmin = true
options := &user_model.SearchUserOptions{
LoginName: loginName,
Actor: actionsUser,
Type: user_model.UserTypeRemoteUser,
OrderBy: db.SearchOrderByAlphabetically,
ListOptions: db.ListOptions{PageSize: 1},
IsActive: util.OptionalBoolFalse,
IncludeReserved: true,
}
users, _, err := user_model.SearchUsers(db.DefaultContext, options)
if err != nil {
return []*user_model.User{}, fmt.Errorf("search failed: %v", err)
}
return users, nil
}
func createNodeInfo(ctx *context.APIContext, actorID forgefed.ActorID) (forgefed.NodeInfo, error) {
actionsUser := user_model.NewActionsUser()
client, err := api.NewClient(ctx, actionsUser, "no idea where to get key material.")
if err != nil {
return forgefed.NodeInfo{}, err
}
body, err := client.GetBody(actorID.AsWellKnownNodeInfoUri())
if err != nil {
return forgefed.NodeInfo{}, err
}
nodeInfoWellKnown, err := forgefed.NewNodeInfoWellKnown(body)
if err != nil {
return forgefed.NodeInfo{}, err
}
body, err = client.GetBody(nodeInfoWellKnown.Href)
if err != nil {
return forgefed.NodeInfo{}, err
}
return forgefed.NewNodeInfo(body)
}
// ToDo: Maybe use externalLoginUser
func createUserFromAP(ctx *context.APIContext, personID forgefed.PersonID) (*user_model.User, error) {
// ToDo: Do we get a publicKeyId from server, repo or owner or repo?
actionsUser := user_model.NewActionsUser()
client, err := api.NewClient(ctx, actionsUser, "no idea where to get key material.")
if err != nil {
return &user_model.User{}, err
}
body, err := client.GetBody(personID.AsURI())
if err != nil {
return &user_model.User{}, err
}
person := ap.Person{}
err = person.UnmarshalJSON(body)
if err != nil {
return &user_model.User{}, err
}
log.Info("RepositoryInbox: got person by ap: %v", person)
// TODO: we should validate the person object here!
email := fmt.Sprintf("%v@%v", uuid.New().String(), personID.Host)
loginName := personID.AsLoginName()
name := fmt.Sprintf("%v%v", person.PreferredUsername.String(), personID.HostSuffix())
log.Info("RepositoryInbox: person.Name: %v", person.Name)
fullName := person.Name.String()
if len(person.Name) == 0 {
fullName = name
}
password, err := pwd_gen.Generate(32, 10, 10, false, true)
if err != nil {
return &user_model.User{}, err
}
user := &user_model.User{
LowerName: strings.ToLower(person.PreferredUsername.String()),
Name: name,
FullName: fullName,
Email: email,
EmailNotificationsPreference: "disabled",
Passwd: password,
MustChangePassword: false,
LoginName: loginName,
Type: user_model.UserTypeRemoteUser,
IsAdmin: false,
}
overwrite := &user_model.CreateUserOverwriteOptions{
IsActive: util.OptionalBoolFalse,
IsRestricted: util.OptionalBoolFalse,
}
if err := user_model.CreateUser(ctx, user, overwrite); err != nil {
return &user_model.User{}, err
}
return user, nil
}