mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 01:52:46 +00:00
72ba5666a6
* don't set emoji / media image paths on failed download, migrate FileType from string to integer * fix incorrect uses of util.PtrOr, fix returned frontend media * fix migration not setting arguments correctly in where clause * fix not providing default with not null column * whoops * ensure a default gets set for media attachment file type * remove the exclusive flag from writing files in disk storage * rename PtrOr -> PtrOrZero, and rename PtrValueOr -> PtrOrValue to match * slight wording changes * use singular / plural word forms (no parentheses), is better for screen readers * update testmodels with unknown media type to have unset file details, update attachment focus handling converting to frontend, update tests * store first instance in ffmpeg wasm pool, fill remaining with closed instances
309 lines
11 KiB
Go
309 lines
11 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package account
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import (
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"context"
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"errors"
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"github.com/superseriousbusiness/gotosocial/internal/ap"
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apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/id"
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"github.com/superseriousbusiness/gotosocial/internal/messages"
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"github.com/superseriousbusiness/gotosocial/internal/uris"
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"github.com/superseriousbusiness/gotosocial/internal/util"
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)
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// FollowCreate handles a follow request to an account, either remote or local.
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func (p *Processor) FollowCreate(ctx context.Context, requestingAccount *gtsmodel.Account, form *apimodel.AccountFollowRequest) (*apimodel.Relationship, gtserror.WithCode) {
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targetAccount, errWithCode := p.getFollowTarget(ctx, requestingAccount, form.ID)
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if errWithCode != nil {
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return nil, errWithCode
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}
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// Check if a follow exists already.
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if follow, err := p.state.DB.GetFollow(
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gtscontext.SetBarebones(ctx),
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requestingAccount.ID,
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targetAccount.ID,
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); err != nil && !errors.Is(err, db.ErrNoEntries) {
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err = gtserror.Newf("db error checking existing follow: %w", err)
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return nil, gtserror.NewErrorInternalError(err)
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} else if follow != nil {
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// Already follows, update if necessary + return relationship.
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return p.updateFollow(
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ctx,
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requestingAccount,
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form,
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follow.ShowReblogs,
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follow.Notify,
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func(columns ...string) error { return p.state.DB.UpdateFollow(ctx, follow, columns...) },
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)
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}
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// Check if a follow request exists already.
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if followRequest, err := p.state.DB.GetFollowRequest(
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gtscontext.SetBarebones(ctx),
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requestingAccount.ID,
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targetAccount.ID,
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); err != nil && !errors.Is(err, db.ErrNoEntries) {
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err = gtserror.Newf("db error checking existing follow request: %w", err)
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return nil, gtserror.NewErrorInternalError(err)
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} else if followRequest != nil {
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// Already requested, update if necessary + return relationship.
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return p.updateFollow(
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ctx,
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requestingAccount,
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form,
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followRequest.ShowReblogs,
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followRequest.Notify,
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func(columns ...string) error { return p.state.DB.UpdateFollowRequest(ctx, followRequest, columns...) },
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)
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}
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// Neither follows nor follow requests, so
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// create and store a new follow request.
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followID, err := id.NewRandomULID()
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if err != nil {
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return nil, gtserror.NewErrorInternalError(err)
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}
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followURI := uris.GenerateURIForFollow(requestingAccount.Username, followID)
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fr := >smodel.FollowRequest{
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ID: followID,
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URI: followURI,
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AccountID: requestingAccount.ID,
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Account: requestingAccount,
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TargetAccountID: form.ID,
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TargetAccount: targetAccount,
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ShowReblogs: form.Reblogs,
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Notify: form.Notify,
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}
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// Insert the new follow request.
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if err := p.state.DB.PutFollowRequest(ctx, fr); err != nil {
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err = gtserror.Newf("error creating follow request in db: %s", err)
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return nil, gtserror.NewErrorInternalError(err)
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}
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// And get the new relationship state.
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rel, errWithCode := p.RelationshipGet(ctx, requestingAccount, form.ID)
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if errWithCode != nil {
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return nil, errWithCode
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}
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// For unlocked accounts on the same instance,
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// we can already optimistically show the follow
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// request as accepted in the returned relationship.
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if targetAccount.IsLocal() && !*targetAccount.Locked {
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rel.Requested = false
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rel.Following = true
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rel.ShowingReblogs = util.PtrOrValue(fr.ShowReblogs, true)
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rel.Notifying = util.PtrOrValue(fr.Notify, false)
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}
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// Handle side effects async.
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p.state.Workers.Client.Queue.Push(&messages.FromClientAPI{
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APObjectType: ap.ActivityFollow,
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APActivityType: ap.ActivityCreate,
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GTSModel: fr,
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Origin: requestingAccount,
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Target: targetAccount,
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})
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return rel, nil
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}
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// FollowRemove handles the removal of a follow/follow request to an account, either remote or local.
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func (p *Processor) FollowRemove(ctx context.Context, requestingAccount *gtsmodel.Account, targetAccountID string) (*apimodel.Relationship, gtserror.WithCode) {
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targetAccount, errWithCode := p.getFollowTarget(ctx, requestingAccount, targetAccountID)
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if errWithCode != nil {
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return nil, errWithCode
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}
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// Unfollow and deal with side effects.
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msgs, err := p.unfollow(ctx, requestingAccount, targetAccount)
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if err != nil {
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return nil, gtserror.NewErrorNotFound(gtserror.Newf("account %s not found in the db: %s", targetAccountID, err))
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}
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// Batch queue accreted client api messages.
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p.state.Workers.Client.Queue.Push(msgs...)
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return p.RelationshipGet(ctx, requestingAccount, targetAccountID)
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}
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/*
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Utility functions.
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*/
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// updateFollow is a utility function for updating an existing
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// follow or followRequest with the parameters provided in the
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// given form. If nothing changes, this function is a no-op and
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// will just return the existing relationship between follow
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// origin and follow target account.
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func (p *Processor) updateFollow(
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ctx context.Context,
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requestingAccount *gtsmodel.Account,
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form *apimodel.AccountFollowRequest,
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currentShowReblogs *bool,
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currentNotify *bool,
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update func(...string) error,
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) (*apimodel.Relationship, gtserror.WithCode) {
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if form.Reblogs == nil && form.Notify == nil {
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// There's nothing to update.
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return p.RelationshipGet(ctx, requestingAccount, form.ID)
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}
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// Including "updated_at", max 3 columns may change.
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columns := make([]string, 0, 3)
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// Check what we need to update (if anything).
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if newReblogs := form.Reblogs; newReblogs != nil && *newReblogs != *currentShowReblogs {
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*currentShowReblogs = *newReblogs
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columns = append(columns, "show_reblogs")
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}
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if newNotify := form.Notify; newNotify != nil && *newNotify != *currentNotify {
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*currentNotify = *newNotify
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columns = append(columns, "notify")
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}
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if len(columns) == 0 {
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// Nothing actually changed.
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return p.RelationshipGet(ctx, requestingAccount, form.ID)
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}
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if err := update(columns...); err != nil {
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err = gtserror.Newf("error updating existing follow (request): %w", err)
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return nil, gtserror.NewErrorInternalError(err)
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}
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return p.RelationshipGet(ctx, requestingAccount, form.ID)
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}
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// getFollowTarget is a convenience function which:
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// - Checks if account is trying to follow/unfollow itself.
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// - Returns not found if target should not be visible to requester.
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// - Returns target account according to its id.
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func (p *Processor) getFollowTarget(ctx context.Context, requester *gtsmodel.Account, targetID string) (*gtsmodel.Account, gtserror.WithCode) {
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// Check for requester.
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if requester == nil {
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err := errors.New("no authorized user")
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return nil, gtserror.NewErrorUnauthorized(err)
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}
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// Account can't follow or unfollow itself.
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if requester.ID == targetID {
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err := errors.New("account can't follow or unfollow itself")
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return nil, gtserror.NewErrorNotAcceptable(err)
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}
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// Fetch the target account for requesting user account.
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return p.c.GetVisibleTargetAccount(ctx, requester, targetID)
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}
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// unfollow is a convenience function for having requesting account
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// unfollow (and un follow request) target account, if follows and/or
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// follow requests exist.
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//
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// If a follow and/or follow request was removed this way, one or two
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// messages will be returned which should then be processed by a client
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// api worker.
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func (p *Processor) unfollow(ctx context.Context, requestingAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) ([]*messages.FromClientAPI, error) {
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var msgs []*messages.FromClientAPI
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// Get follow from requesting account to target account.
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follow, err := p.state.DB.GetFollow(ctx, requestingAccount.ID, targetAccount.ID)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err = gtserror.Newf("error getting follow from %s targeting %s: %w", requestingAccount.ID, targetAccount.ID, err)
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return nil, err
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}
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if follow != nil {
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// Delete known follow from database with ID.
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err = p.state.DB.DeleteFollowByID(ctx, follow.ID)
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if err != nil {
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if !errors.Is(err, db.ErrNoEntries) {
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err = gtserror.Newf("error deleting request from %s targeting %s: %w", requestingAccount.ID, targetAccount.ID, err)
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return nil, err
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}
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// If err == db.ErrNoEntries here then it
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// indicates a race condition with another
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// unfollow for the same requester->target.
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return msgs, nil
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}
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// Follow status changed, process side effects.
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msgs = append(msgs, &messages.FromClientAPI{
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APObjectType: ap.ActivityFollow,
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APActivityType: ap.ActivityUndo,
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GTSModel: >smodel.Follow{
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AccountID: requestingAccount.ID,
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TargetAccountID: targetAccount.ID,
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URI: follow.URI,
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},
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Origin: requestingAccount,
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Target: targetAccount,
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})
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}
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// Get follow request from requesting account to target account.
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followReq, err := p.state.DB.GetFollowRequest(ctx, requestingAccount.ID, targetAccount.ID)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err = gtserror.Newf("error getting follow request from %s targeting %s: %w", requestingAccount.ID, targetAccount.ID, err)
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return nil, err
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}
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if followReq != nil {
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// Delete known follow request from database with ID.
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err = p.state.DB.DeleteFollowRequestByID(ctx, followReq.ID)
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if err != nil {
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if !errors.Is(err, db.ErrNoEntries) {
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err = gtserror.Newf("error deleting follow request from %s targeting %s: %w", requestingAccount.ID, targetAccount.ID, err)
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return nil, err
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}
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// If err == db.ErrNoEntries here then it
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// indicates a race condition with another
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// unfollow for the same requester->target.
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return msgs, nil
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}
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// Follow status changed, process side effects.
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msgs = append(msgs, &messages.FromClientAPI{
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APObjectType: ap.ActivityFollow,
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APActivityType: ap.ActivityUndo,
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GTSModel: >smodel.Follow{
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AccountID: requestingAccount.ID,
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TargetAccountID: targetAccount.ID,
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URI: followReq.URI,
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},
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Origin: requestingAccount,
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Target: targetAccount,
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})
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}
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return msgs, nil
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}
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