gotosocial/internal/web/profile.go
tobi dd83ad053c
[feature] Add meta robots tag; allow robots to index profile card if user is Discoverable (#842)
* rework robots.txt response

* don't let robots snippet from statuses/threads

* allow robots to index if user is Discoverable

* add license text
2022-09-29 12:03:17 +02:00

159 lines
4.9 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 (
"context"
"encoding/json"
"errors"
"fmt"
"net/http"
"strings"
"github.com/gin-gonic/gin"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/api"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
)
const (
// MaxStatusIDKey is for specifying the maximum ID of the status to retrieve.
MaxStatusIDKey = "max_id"
)
func (m *Module) profileGETHandler(c *gin.Context) {
ctx := c.Request.Context()
authed, err := oauth.Authed(c, false, false, false, false)
if err != nil {
api.ErrorHandler(c, gtserror.NewErrorUnauthorized(err, err.Error()), m.processor.InstanceGet)
return
}
// usernames on our instance will always be lowercase
username := strings.ToLower(c.Param(usernameKey))
if username == "" {
err := errors.New("no account username specified")
api.ErrorHandler(c, gtserror.NewErrorBadRequest(err, err.Error()), m.processor.InstanceGet)
return
}
host := config.GetHost()
instance, err := m.processor.InstanceGet(ctx, host)
if err != nil {
api.ErrorHandler(c, gtserror.NewErrorInternalError(err), m.processor.InstanceGet)
return
}
instanceGet := func(ctx context.Context, domain string) (*apimodel.Instance, gtserror.WithCode) {
return instance, nil
}
account, errWithCode := m.processor.AccountGetLocalByUsername(ctx, authed, username)
if errWithCode != nil {
api.ErrorHandler(c, errWithCode, instanceGet)
return
}
// if we're getting an AP request on this endpoint we
// should render the account's AP representation instead
accept := c.NegotiateFormat(string(api.TextHTML), string(api.AppActivityJSON), string(api.AppActivityLDJSON))
if accept == string(api.AppActivityJSON) || accept == string(api.AppActivityLDJSON) {
m.returnAPProfile(ctx, c, username, accept)
return
}
// only allow search engines / robots to view this page if account is discoverable
var robotsMeta string
if account.Discoverable {
robotsMeta = robotsAllowSome
}
// we should only show the 'back to top' button if the
// profile visitor is paging through statuses
showBackToTop := false
maxStatusID := ""
maxStatusIDString := c.Query(MaxStatusIDKey)
if maxStatusIDString != "" {
maxStatusID = maxStatusIDString
showBackToTop = true
}
statusResp, errWithCode := m.processor.AccountWebStatusesGet(ctx, account.ID, maxStatusID)
if errWithCode != nil {
api.ErrorHandler(c, errWithCode, instanceGet)
return
}
stylesheets := []string{
"/assets/Fork-Awesome/css/fork-awesome.min.css",
"/assets/dist/status.css",
"/assets/dist/profile.css",
}
if config.GetAccountsAllowCustomCSS() {
stylesheets = append(stylesheets, "/@"+account.Username+"/custom.css")
}
c.HTML(http.StatusOK, "profile.tmpl", gin.H{
"instance": instance,
"account": account,
"ogMeta": ogBase(instance).withAccount(account),
"robotsMeta": robotsMeta,
"statuses": statusResp.Items,
"statuses_next": statusResp.NextLink,
"show_back_to_top": showBackToTop,
"stylesheets": stylesheets,
"javascript": []string{
"/assets/dist/bundle.js",
"/assets/dist/frontend.js",
},
})
}
func (m *Module) returnAPProfile(ctx context.Context, c *gin.Context, username string, accept string) {
verifier, signed := c.Get(string(ap.ContextRequestingPublicKeyVerifier))
if signed {
ctx = context.WithValue(ctx, ap.ContextRequestingPublicKeyVerifier, verifier)
}
signature, signed := c.Get(string(ap.ContextRequestingPublicKeySignature))
if signed {
ctx = context.WithValue(ctx, ap.ContextRequestingPublicKeySignature, signature)
}
user, errWithCode := m.processor.GetFediUser(ctx, username, c.Request.URL)
if errWithCode != nil {
api.ErrorHandler(c, errWithCode, m.processor.InstanceGet) //nolint:contextcheck
return
}
b, mErr := json.Marshal(user)
if mErr != nil {
err := fmt.Errorf("could not marshal json: %s", mErr)
api.ErrorHandler(c, gtserror.NewErrorInternalError(err), m.processor.InstanceGet) //nolint:contextcheck
return
}
c.Data(http.StatusOK, accept, b)
}