gotosocial/internal/web/base.go
tobi 4b4c935e02
[bugfix] Fix bug where admin panel could not be accessed at /admin (#427)
* clarify comments

* tidy up static serving + add /admin redirect
2022-03-13 18:35:26 +01:00

123 lines
3.8 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2022 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 web
import (
"fmt"
"net/http"
"path/filepath"
"github.com/gin-gonic/gin"
"github.com/sirupsen/logrus"
"github.com/spf13/viper"
"github.com/superseriousbusiness/gotosocial/internal/api"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/router"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
const (
confirmEmailPath = "/" + uris.ConfirmEmailPath
tokenParam = "token"
)
// Module implements the api.ClientModule interface for web pages.
type Module struct {
processor processing.Processor
}
// New returns a new api.ClientModule for web pages.
func New(processor processing.Processor) api.ClientModule {
return &Module{
processor: processor,
}
}
func (m *Module) baseHandler(c *gin.Context) {
l := logrus.WithField("func", "BaseGETHandler")
l.Trace("serving index html")
host := viper.GetString(config.Keys.Host)
instance, err := m.processor.InstanceGet(c.Request.Context(), host)
if err != nil {
l.Debugf("error getting instance from processor: %s", err)
c.JSON(http.StatusInternalServerError, gin.H{"error": "internal server error"})
return
}
c.HTML(http.StatusOK, "index.tmpl", gin.H{
"instance": instance,
})
}
// NotFoundHandler serves a 404 html page instead of a blank 404 error.
func (m *Module) NotFoundHandler(c *gin.Context) {
l := logrus.WithField("func", "404")
l.Trace("serving 404 html")
host := viper.GetString(config.Keys.Host)
instance, err := m.processor.InstanceGet(c.Request.Context(), host)
if err != nil {
l.Debugf("error getting instance from processor: %s", err)
c.JSON(http.StatusInternalServerError, gin.H{"error": "internal server error"})
return
}
c.HTML(404, "404.tmpl", gin.H{
"instance": instance,
})
}
// Route satisfies the RESTAPIModule interface
func (m *Module) Route(s router.Router) error {
// serve static files from assets dir at /assets
assetBaseDir := viper.GetString(config.Keys.WebAssetBaseDir)
if assetBaseDir == "" {
return fmt.Errorf("%s cannot be empty and must be a relative or absolute path", config.Keys.WebAssetBaseDir)
}
assetPath, err := filepath.Abs(assetBaseDir)
if err != nil {
return fmt.Errorf("error getting absolute path of %s: %s", assetBaseDir, err)
}
s.AttachStaticFS("/assets", fileSystem{http.Dir(assetPath)})
// serve admin panel from within assets dir at /admin/
// and redirect /admin to /admin/
adminPath := filepath.Join(assetPath, "admin")
s.AttachStaticFS("/admin/", fileSystem{http.Dir(adminPath)})
s.AttachHandler(http.MethodGet, "/admin", func(c *gin.Context) {
c.Redirect(http.StatusMovedPermanently, "/admin/")
})
// serve front-page
s.AttachHandler(http.MethodGet, "/", m.baseHandler)
// serve statuses
s.AttachHandler(http.MethodGet, "/:user/statuses/:id", m.threadTemplateHandler)
// serve email confirmation page at /confirm_email?token=whatever
s.AttachHandler(http.MethodGet, confirmEmailPath, m.confirmEmailGETHandler)
// 404 handler
s.AttachNoRouteHandler(m.NotFoundHandler)
return nil
}