summaryrefslogtreecommitdiff
path: root/internal/processing/fedi/wellknown.go
blob: 93fd3b28fbb50e4759c0aad45d70d5b90d309250 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
// 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}"
	nodeInfoSoftwareName            = "gotosocial"
	nodeInfo20Rel                   = "http://nodeinfo.diaspora.software/ns/schema/2.0"
	nodeInfo21Rel                   = "http://nodeinfo.diaspora.software/ns/schema/2.1"
	nodeInfoRepo                    = "https://github.com/superseriousbusiness/gotosocial"
	nodeInfoHomepage                = "https://docs.gotosocial.org"
	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:  nodeInfo20Rel,
				Href: fmt.Sprintf("%s://%s/nodeinfo/2.0", protocol, host),
			},
			{
				Rel:  nodeInfo21Rel,
				Href: fmt.Sprintf("%s://%s/nodeinfo/2.1", protocol, host),
			},
		},
	}, nil
}

// NodeInfoGet returns a node info struct in response to a 2.0 or 2.1 node info request.
func (p *Processor) NodeInfoGet(ctx context.Context, schemaVersion string) (*apimodel.Nodeinfo, gtserror.WithCode) {
	const ()

	var (
		userCount int
		postCount int
		mau       int
		err       error
	)

	switch config.GetInstanceStatsMode() {

	case config.InstanceStatsModeBaffle:
		// Use randomized stats.
		stats := p.converter.RandomStats()
		userCount = int(stats.TotalUsers)
		postCount = int(stats.Statuses)
		mau = int(stats.MonthlyActiveUsers)

	case config.InstanceStatsModeZero:
		// Use zeroed stats
		// (don't count anything).

	default:
		// Mode is either "serve" or "default".
		// Count actual stats.
		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)
		}
	}

	nodeInfo := &apimodel.Nodeinfo{
		Version: schemaVersion,
		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,
				ActiveMonth: mau,
			},
			LocalPosts: postCount,
		},
		Metadata: nodeInfoMetadata,
	}

	if schemaVersion == "2.1" {
		nodeInfo.Software.Repository = nodeInfoRepo
		nodeInfo.Software.Homepage = nodeInfoHomepage
	}

	return nodeInfo, 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
}