mirror of
https://github.com/superseriousbusiness/gotosocial.git
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89 lines
3 KiB
Go
89 lines
3 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 fedi
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import (
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"context"
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"errors"
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"code.superseriousbusiness.org/gotosocial/internal/ap"
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"code.superseriousbusiness.org/gotosocial/internal/config"
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"code.superseriousbusiness.org/gotosocial/internal/db"
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"code.superseriousbusiness.org/gotosocial/internal/gtserror"
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)
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// EmojiGet handles the GET for an emoji originating from this instance.
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func (p *Processor) EmojiGet(ctx context.Context, emojiID string) (any, gtserror.WithCode) {
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// Authenticate incoming request.
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//
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// Pass hostname string to this function to indicate
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// it's the instance account being requested, as
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// emojis are always owned by the instance account.
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auth, errWithCode := p.authenticate(ctx, config.GetHost())
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if errWithCode != nil {
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return nil, errWithCode
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}
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if auth.handshakingURI != nil {
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// We're currently handshaking, which means
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// we don't know this account yet. This should
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// be a very rare race condition.
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err := gtserror.Newf("network race handshaking %s", auth.handshakingURI)
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return nil, gtserror.NewErrorInternalError(err)
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}
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// Get the requested emoji.
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emoji, err := p.state.DB.GetEmojiByID(ctx, emojiID)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err := gtserror.Newf("db error getting emoji %s: %w", emojiID, err)
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return nil, gtserror.NewErrorNotFound(err)
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}
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if emoji == nil {
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err := gtserror.Newf("emoji %s not found in the db", emojiID)
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return nil, gtserror.NewErrorNotFound(err)
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}
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// Only serve *our*
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// emojis on this path.
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if !emoji.IsLocal() {
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err := gtserror.Newf("emoji %s doesn't belong to this instance (domain is %s)", emojiID, emoji.Domain)
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return nil, gtserror.NewErrorNotFound(err)
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}
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// Don't serve emojis that have
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// been disabled by an admin.
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if *emoji.Disabled {
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err := gtserror.Newf("emoji with id %s has been disabled by an admin", emojiID)
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return nil, gtserror.NewErrorNotFound(err)
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}
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apEmoji, err := p.converter.EmojiToAS(ctx, emoji)
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if err != nil {
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err := gtserror.Newf("error converting emoji %s to ap: %s", emojiID, err)
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return nil, gtserror.NewErrorInternalError(err)
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}
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data, err := ap.Serialize(apEmoji)
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if err != nil {
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err := gtserror.Newf("error serializing emoji %s: %w", emojiID, err)
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return nil, gtserror.NewErrorInternalError(err)
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}
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return data, nil
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}
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