Ap (#14)

Big restructuring and initial work on activitypub

internal/api/client/fileserver/fileserver.go

@@ -0,0 +1,82 @@
+/*
+   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 fileserver
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/api"
+	"github.com/superseriousbusiness/gotosocial/internal/config"
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/message"
+	"github.com/superseriousbusiness/gotosocial/internal/router"
+)
+
+const (
+	// AccountIDKey is the url key for account id (an account uuid)
+	AccountIDKey = "account_id"
+	// MediaTypeKey is the url key for media type (usually something like attachment or header etc)
+	MediaTypeKey = "media_type"
+	// MediaSizeKey is the url key for the desired media size--original/small/static
+	MediaSizeKey = "media_size"
+	// FileNameKey is the actual filename being sought. Will usually be a UUID then something like .jpeg
+	FileNameKey = "file_name"
+)
+
+// FileServer implements the RESTAPIModule interface.
+// The goal here is to serve requested media files if the gotosocial server is configured to use local storage.
+type FileServer struct {
+	config      *config.Config
+	processor   message.Processor
+	log         *logrus.Logger
+	storageBase string
+}
+
+// New returns a new fileServer module
+func New(config *config.Config, processor message.Processor, log *logrus.Logger) api.ClientModule {
+	return &FileServer{
+		config:      config,
+		processor:   processor,
+		log:         log,
+		storageBase: config.StorageConfig.ServeBasePath,
+	}
+}
+
+// Route satisfies the RESTAPIModule interface
+func (m *FileServer) Route(s router.Router) error {
+	s.AttachHandler(http.MethodGet, fmt.Sprintf("%s/:%s/:%s/:%s/:%s", m.storageBase, AccountIDKey, MediaTypeKey, MediaSizeKey, FileNameKey), m.ServeFile)
+	return nil
+}
+
+// CreateTables populates necessary tables in the given DB
+func (m *FileServer) CreateTables(db db.DB) error {
+	models := []interface{}{
+		&gtsmodel.MediaAttachment{},
+	}
+
+	for _, m := range models {
+		if err := db.CreateTable(m); err != nil {
+			return fmt.Errorf("error creating table: %s", err)
+		}
+	}
+	return nil
+}