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
|
// maunium-stickerpicker - A fast and simple Matrix sticker picker widget.
// Copyright (C) 2024 Tulir Asokan
//
// 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 <https://www.gnu.org/licenses/>.
package main
import (
"context"
"flag"
"fmt"
"os"
"regexp"
"slices"
"time"
"go.mau.fi/util/exerrors"
"gopkg.in/yaml.v3"
"maunium.net/go/mautrix/federation"
"maunium.net/go/mautrix/mediaproxy"
)
type Config struct {
mediaproxy.BasicConfig `yaml:",inline"`
mediaproxy.ServerConfig `yaml:",inline"`
Destination string `yaml:"destination"`
SplitIdx []int `yaml:"split_idx"`
}
var configPath = flag.String("config", "config.yaml", "config file path")
var generateServerKey = flag.Bool("generate-key", false, "generate a new server key and exit")
var giphyIDRegex = regexp.MustCompile(`^[a-zA-Z0-9-_]+$`)
var destination = "https://i.giphy.com/%s.webp"
var splitIdx []int
func main() {
flag.Parse()
if *generateServerKey {
fmt.Println(federation.GenerateSigningKey().SynapseString())
} else {
cfgFile := exerrors.Must(os.ReadFile(*configPath))
var cfg Config
exerrors.PanicIfNotNil(yaml.Unmarshal(cfgFile, &cfg))
mp := exerrors.Must(mediaproxy.NewFromConfig(cfg.BasicConfig, getMedia))
mp.KeyServer.Version.Name = "mautrix-go + maunium-stickerpicker giphy proxy"
if cfg.Destination != "" {
destination = cfg.Destination
splitIdx = cfg.SplitIdx
slices.Sort(splitIdx)
slices.Reverse(splitIdx)
}
exerrors.PanicIfNotNil(mp.Listen(cfg.ServerConfig))
}
}
func getMedia(_ context.Context, id string, _ map[string]string) (response mediaproxy.GetMediaResponse, err error) {
// This is not related to giphy, but random cats are always fun
if id == "cat" {
return &mediaproxy.GetMediaResponseURL{
URL: "https://cataas.com/cat",
ExpiresAt: time.Now(),
}, nil
}
if !giphyIDRegex.MatchString(id) {
return nil, mediaproxy.ErrInvalidMediaIDSyntax
}
for _, idx := range splitIdx {
if idx >= len(id) {
return nil, mediaproxy.ErrInvalidMediaIDSyntax
}
id = id[:idx] + "/" + id[idx:]
}
return &mediaproxy.GetMediaResponseURL{
URL: fmt.Sprintf(destination, id),
}, nil
}
|
