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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 fedi
import (
"context"
"fmt"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
)
const (
hostMetaXMLNS = "http://docs.oasis-open.org/ns/xri/xrd-1.0"
hostMetaRel = "lrdd"
hostMetaType = "application/xrd+xml"
hostMetaTemplate = ".well-known/webfinger?resource={uri}"
nodeInfoVersion = "2.0"
nodeInfoSoftwareName = "gotosocial"
nodeInfoRel = "http://nodeinfo.diaspora.software/ns/schema/" + nodeInfoVersion
webfingerProfilePage = "http://webfinger.net/rel/profile-page"
webFingerProfilePageContentType = "text/html"
webfingerSelf = "self"
webFingerSelfContentType = "application/activity+json"
webfingerAccount = "acct"
)
var (
nodeInfoProtocols = []string{"activitypub"}
nodeInfoInbound = []string{}
nodeInfoOutbound = []string{}
nodeInfoMetadata = make(map[string]interface{})
)
// NodeInfoRelGet returns a well known response giving the path to node info.
func (p *Processor) NodeInfoRelGet(ctx context.Context) (*apimodel.WellKnownResponse, gtserror.WithCode) {
protocol := config.GetProtocol()
host := config.GetHost()
return &apimodel.WellKnownResponse{
Links: []apimodel.Link{
{
Rel: nodeInfoRel,
Href: fmt.Sprintf("%s://%s/nodeinfo/%s", protocol, host, nodeInfoVersion),
},
},
}, nil
}
// NodeInfoGet returns a node info struct in response to a node info request.
func (p *Processor) NodeInfoGet(ctx context.Context) (*apimodel.Nodeinfo, gtserror.WithCode) {
host := config.GetHost()
userCount, err := p.state.DB.CountInstanceUsers(ctx, host)
if err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
postCount, err := p.state.DB.CountInstanceStatuses(ctx, host)
if err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
return &apimodel.Nodeinfo{
Version: nodeInfoVersion,
Software: apimodel.NodeInfoSoftware{
Name: nodeInfoSoftwareName,
Version: config.GetSoftwareVersion(),
},
Protocols: nodeInfoProtocols,
Services: apimodel.NodeInfoServices{
Inbound: nodeInfoInbound,
Outbound: nodeInfoOutbound,
},
OpenRegistrations: config.GetAccountsRegistrationOpen(),
Usage: apimodel.NodeInfoUsage{
Users: apimodel.NodeInfoUsers{
Total: userCount,
},
LocalPosts: postCount,
},
Metadata: nodeInfoMetadata,
}, nil
}
// HostMetaGet returns a host-meta struct in response to a host-meta request.
func (p *Processor) HostMetaGet() *apimodel.HostMeta {
protocol := config.GetProtocol()
host := config.GetHost()
return &apimodel.HostMeta{
XMLNS: hostMetaXMLNS,
Link: []apimodel.Link{
{
Rel: hostMetaRel,
Type: hostMetaType,
Template: fmt.Sprintf("%s://%s/%s", protocol, host, hostMetaTemplate),
},
},
}
}
// WebfingerGet handles the GET for a webfinger resource. Most commonly, it will be used for returning account lookups.
func (p *Processor) WebfingerGet(ctx context.Context, requestedUsername string) (*apimodel.WellKnownResponse, gtserror.WithCode) {
// Get the local account the request is referring to.
requestedAccount, err := p.state.DB.GetAccountByUsernameDomain(ctx, requestedUsername, "")
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("database error getting account with username %s: %s", requestedUsername, err))
}
return &apimodel.WellKnownResponse{
Subject: webfingerAccount + ":" + requestedAccount.Username + "@" + config.GetAccountDomain(),
Aliases: []string{
requestedAccount.URI,
requestedAccount.URL,
},
Links: []apimodel.Link{
{
Rel: webfingerProfilePage,
Type: webFingerProfilePageContentType,
Href: requestedAccount.URL,
},
{
Rel: webfingerSelf,
Type: webFingerSelfContentType,
Href: requestedAccount.URI,
},
},
}, nil
}
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