GoToSocial/internal/web/web.go

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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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 web
import (
"context"
"net/http"
"net/url"
"path/filepath"
"codeberg.org/gruf/go-cache/v3"
"github.com/gin-gonic/gin"
apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/middleware"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/router"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
const (
confirmEmailPath = "/" + uris.ConfirmEmailPath
profileGroupPath = "/@:" + usernameKey
statusPath = "/statuses/:" + apiutil.WebStatusIDKey // leave out the '/@:username' prefix as this will be served within the profile group
tagsPath = "/tags/:" + apiutil.TagNameKey
customCSSPath = profileGroupPath + "/custom.css"
rssFeedPath = profileGroupPath + "/feed.rss"
assetsPathPrefix = "/assets"
distPathPrefix = assetsPathPrefix + "/dist"
settingsPathPrefix = "/settings"
settingsPanelGlob = settingsPathPrefix + "/*panel"
userPanelPath = settingsPathPrefix + "/user"
adminPanelPath = settingsPathPrefix + "/admin"
tokenParam = "token"
usernameKey = "username"
cacheControlHeader = "Cache-Control" // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control
cacheControlNoCache = "no-cache" // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#response_directives
ifModifiedSinceHeader = "If-Modified-Since" // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/If-Modified-Since
ifNoneMatchHeader = "If-None-Match" // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/If-None-Match
eTagHeader = "ETag" // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ETag
lastModifiedHeader = "Last-Modified" // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Last-Modified
)
type Module struct {
processor *processing.Processor
eTagCache cache.Cache[string, eTagCacheEntry]
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isURIBlocked func(context.Context, *url.URL) (bool, error)
}
func New(db db.DB, processor *processing.Processor) *Module {
return &Module{
processor: processor,
eTagCache: newETagCache(),
isURIBlocked: db.IsURIBlocked,
}
}
func (m *Module) Route(r router.Router, mi ...gin.HandlerFunc) {
// Group all static files from assets dir at /assets,
// so that they can use the same cache control middleware.
webAssetsAbsFilePath, err := filepath.Abs(config.GetWebAssetBaseDir())
if err != nil {
log.Panicf(nil, "error getting absolute path of assets dir: %s", err)
}
fs := fileSystem{http.Dir(webAssetsAbsFilePath)}
assetsGroup := r.AttachGroup(assetsPathPrefix)
assetsGroup.Use(m.assetsCacheControlMiddleware(fs))
assetsGroup.Use(mi...)
assetsGroup.StaticFS("/", fs)
// handlers that serve profiles and statuses should use the SignatureCheck
// middleware, so that requests with content-type application/activity+json
// can still be served
profileGroup := r.AttachGroup(profileGroupPath)
profileGroup.Use(mi...)
profileGroup.Use(middleware.SignatureCheck(m.isURIBlocked), middleware.CacheControl(middleware.CacheControlConfig{
Directives: []string{"no-store"},
}))
profileGroup.Handle(http.MethodGet, "", m.profileGETHandler) // use empty path here since it's the base of the group
profileGroup.Handle(http.MethodGet, statusPath, m.threadGETHandler)
// Attach individual web handlers which require no specific middlewares
r.AttachHandler(http.MethodGet, "/", m.baseHandler) // front-page
r.AttachHandler(http.MethodGet, settingsPathPrefix, m.SettingsPanelHandler)
r.AttachHandler(http.MethodGet, settingsPanelGlob, m.SettingsPanelHandler)
r.AttachHandler(http.MethodGet, customCSSPath, m.customCSSGETHandler)
r.AttachHandler(http.MethodGet, rssFeedPath, m.rssFeedGETHandler)
r.AttachHandler(http.MethodGet, confirmEmailPath, m.confirmEmailGETHandler)
r.AttachHandler(http.MethodGet, robotsPath, m.robotsGETHandler)
r.AttachHandler(http.MethodGet, aboutPath, m.aboutGETHandler)
r.AttachHandler(http.MethodGet, domainBlockListPath, m.domainBlockListGETHandler)
r.AttachHandler(http.MethodGet, tagsPath, m.tagGETHandler)
// Attach redirects from old endpoints to current ones for backwards compatibility
r.AttachHandler(http.MethodGet, "/auth/edit", func(c *gin.Context) { c.Redirect(http.StatusMovedPermanently, userPanelPath) })
r.AttachHandler(http.MethodGet, "/user", func(c *gin.Context) { c.Redirect(http.StatusMovedPermanently, userPanelPath) })
r.AttachHandler(http.MethodGet, "/admin", func(c *gin.Context) { c.Redirect(http.StatusMovedPermanently, adminPanelPath) })
}