Domain block (#76)

* start work on admin domain blocking

* move stuff around + further work on domain blocks

* move + restructure processor

* prep work for deleting account

* tidy

* go fmt

* formatting

* domain blocking more work

* check domain blocks way earlier on

* progress on delete account

* delete more stuff when an account is gone

* and more...

* domain blocky block block

* get individual domain block, delete a block

internal/processing/media/create.go

@@ -0,0 +1,79 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package media
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+
+	apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+)
+
+func (p *processor) Create(account *gtsmodel.Account, form *apimodel.AttachmentRequest) (*apimodel.Attachment, error) {
+	// open the attachment and extract the bytes from it
+	f, err := form.File.Open()
+	if err != nil {
+		return nil, fmt.Errorf("error opening attachment: %s", err)
+	}
+	buf := new(bytes.Buffer)
+	size, err := io.Copy(buf, f)
+	if err != nil {
+		return nil, fmt.Errorf("error reading attachment: %s", err)
+	}
+	if size == 0 {
+		return nil, errors.New("could not read provided attachment: size 0 bytes")
+	}
+
+	// allow the mediaHandler to work its magic of processing the attachment bytes, and putting them in whatever storage backend we're using
+	attachment, err := p.mediaHandler.ProcessAttachment(buf.Bytes(), account.ID, "")
+	if err != nil {
+		return nil, fmt.Errorf("error reading attachment: %s", err)
+	}
+
+	// now we need to add extra fields that the attachment processor doesn't know (from the form)
+	// TODO: handle this inside mediaHandler.ProcessAttachment (just pass more params to it)
+
+	// first description
+	attachment.Description = form.Description
+
+	// now parse the focus parameter
+	focusx, focusy, err := parseFocus(form.Focus)
+	if err != nil {
+		return nil, err
+	}
+	attachment.FileMeta.Focus.X = focusx
+	attachment.FileMeta.Focus.Y = focusy
+
+	// prepare the frontend representation now -- if there are any errors here at least we can bail without
+	// having already put something in the database and then having to clean it up again (eugh)
+	mastoAttachment, err := p.tc.AttachmentToMasto(attachment)
+	if err != nil {
+		return nil, fmt.Errorf("error parsing media attachment to frontend type: %s", err)
+	}
+
+	// now we can confidently put the attachment in the database
+	if err := p.db.Put(attachment); err != nil {
+		return nil, fmt.Errorf("error storing media attachment in db: %s", err)
+	}
+
+	return &mastoAttachment, nil
+}