Api/v1/statuses (#11)

This PR adds:
Statuses

    New status creation.
    View existing status
    Delete a status
    Fave a status
    Unfave a status
    See who's faved a status

Media

    Upload media attachment and store/retrieve it
    Upload custom emoji and store/retrieve it

Fileserver

    Serve files from storage

Testing

    Test models, testrig -- run a GTS test instance and play around with it.

internal/apimodule/status/status.go

@@ -0,0 +1,138 @@
+/*
+   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 status
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/apimodule"
+	"github.com/superseriousbusiness/gotosocial/internal/config"
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"github.com/superseriousbusiness/gotosocial/internal/db/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/distributor"
+	"github.com/superseriousbusiness/gotosocial/internal/mastotypes"
+	"github.com/superseriousbusiness/gotosocial/internal/media"
+	"github.com/superseriousbusiness/gotosocial/internal/router"
+)
+
+const (
+	IDKey          = "id"
+	BasePath       = "/api/v1/statuses"
+	BasePathWithID = BasePath + "/:" + IDKey
+
+	ContextPath = BasePathWithID + "/context"
+
+	FavouritedPath  = BasePathWithID + "/favourited_by"
+	FavouritePath   = BasePathWithID + "/favourite"
+	UnfavouritePath = BasePathWithID + "/unfavourite"
+
+	RebloggedPath = BasePathWithID + "/reblogged_by"
+	ReblogPath    = BasePathWithID + "/reblog"
+	UnreblogPath  = BasePathWithID + "/unreblog"
+
+	BookmarkPath   = BasePathWithID + "/bookmark"
+	UnbookmarkPath = BasePathWithID + "/unbookmark"
+
+	MutePath   = BasePathWithID + "/mute"
+	UnmutePath = BasePathWithID + "/unmute"
+
+	PinPath   = BasePathWithID + "/pin"
+	UnpinPath = BasePathWithID + "/unpin"
+)
+
+type StatusModule struct {
+	config         *config.Config
+	db             db.DB
+	mediaHandler   media.MediaHandler
+	mastoConverter mastotypes.Converter
+	distributor    distributor.Distributor
+	log            *logrus.Logger
+}
+
+// New returns a new account module
+func New(config *config.Config, db db.DB, mediaHandler media.MediaHandler, mastoConverter mastotypes.Converter, distributor distributor.Distributor, log *logrus.Logger) apimodule.ClientAPIModule {
+	return &StatusModule{
+		config:         config,
+		db:             db,
+		mediaHandler:   mediaHandler,
+		mastoConverter: mastoConverter,
+		distributor:    distributor,
+		log:            log,
+	}
+}
+
+// Route attaches all routes from this module to the given router
+func (m *StatusModule) Route(r router.Router) error {
+	r.AttachHandler(http.MethodPost, BasePath, m.StatusCreatePOSTHandler)
+	r.AttachHandler(http.MethodDelete, BasePathWithID, m.StatusDELETEHandler)
+
+	r.AttachHandler(http.MethodPost, FavouritePath, m.StatusFavePOSTHandler)
+	r.AttachHandler(http.MethodPost, UnfavouritePath, m.StatusFavePOSTHandler)
+
+	r.AttachHandler(http.MethodGet, BasePathWithID, m.muxHandler)
+	return nil
+}
+
+func (m *StatusModule) CreateTables(db db.DB) error {
+	models := []interface{}{
+		&gtsmodel.User{},
+		&gtsmodel.Account{},
+		&gtsmodel.Block{},
+		&gtsmodel.Follow{},
+		&gtsmodel.FollowRequest{},
+		&gtsmodel.Status{},
+		&gtsmodel.StatusFave{},
+		&gtsmodel.StatusBookmark{},
+		&gtsmodel.StatusMute{},
+		&gtsmodel.StatusPin{},
+		&gtsmodel.Application{},
+		&gtsmodel.EmailDomainBlock{},
+		&gtsmodel.MediaAttachment{},
+		&gtsmodel.Emoji{},
+		&gtsmodel.Tag{},
+		&gtsmodel.Mention{},
+	}
+
+	for _, m := range models {
+		if err := db.CreateTable(m); err != nil {
+			return fmt.Errorf("error creating table: %s", err)
+		}
+	}
+	return nil
+}
+
+func (m *StatusModule) muxHandler(c *gin.Context) {
+	m.log.Debug("entering mux handler")
+	ru := c.Request.RequestURI
+
+	switch c.Request.Method {
+	case http.MethodGet:
+		if strings.HasPrefix(ru, ContextPath) {
+			// TODO
+		} else if strings.HasPrefix(ru, FavouritedPath) {
+			m.StatusFavedByGETHandler(c)
+		} else {
+			m.StatusGETHandler(c)
+		}
+	}
+}