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
|
package bmatrix
import (
"encoding/json"
"errors"
"html"
"strings"
"time"
matrix "github.com/matrix-org/gomatrix"
)
func newMatrixUsername(username string) *matrixUsername {
mUsername := new(matrixUsername)
// check if we have a </tag>. if we have, we don't escape HTML. #696
if htmlTag.MatchString(username) {
mUsername.formatted = username
// remove the HTML formatting for beautiful push messages #1188
mUsername.plain = htmlReplacementTag.ReplaceAllString(username, "")
} else {
mUsername.formatted = html.EscapeString(username)
mUsername.plain = username
}
return mUsername
}
// getRoomID retrieves a matching room ID from the channel name.
func (b *Bmatrix) getRoomID(channel string) string {
b.RLock()
defer b.RUnlock()
for ID, name := range b.RoomMap {
if name == channel {
return ID
}
}
return ""
}
// interface2Struct marshals and immediately unmarshals an interface.
// Useful for converting map[string]interface{} to a struct.
func interface2Struct(in interface{}, out interface{}) error {
jsonObj, err := json.Marshal(in)
if err != nil {
return err //nolint:wrapcheck
}
return json.Unmarshal(jsonObj, out)
}
// getDisplayName retrieves the displayName for mxid, querying the homserver if the mxid is not in the cache.
func (b *Bmatrix) getDisplayName(mxid string) string {
if b.GetBool("UseUserName") {
return mxid[1:]
}
b.RLock()
if val, present := b.NicknameMap[mxid]; present {
b.RUnlock()
return val.displayName
}
b.RUnlock()
displayName, err := b.mc.GetDisplayName(mxid)
var httpError *matrix.HTTPError
if errors.As(err, &httpError) {
b.Log.Warnf("Couldn't retrieve the display name for %s", mxid)
}
if err != nil {
return b.cacheDisplayName(mxid, mxid[1:])
}
return b.cacheDisplayName(mxid, displayName.DisplayName)
}
// cacheDisplayName stores the mapping between a mxid and a display name, to be reused later without performing a query to the homserver.
// Note that old entries are cleaned when this function is called.
func (b *Bmatrix) cacheDisplayName(mxid string, displayName string) string {
now := time.Now()
// scan to delete old entries, to stop memory usage from becoming too high with old entries
toDelete := []string{}
b.RLock()
for k, v := range b.NicknameMap {
if now.Sub(v.lastUpdated) > 10*time.Minute {
toDelete = append(toDelete, k)
}
}
b.RUnlock()
b.Lock()
for _, v := range toDelete {
delete(b.NicknameMap, v)
}
b.NicknameMap[mxid] = NicknameCacheEntry{
displayName: displayName,
lastUpdated: now,
}
b.Unlock()
return displayName
}
// handleError converts errors into httpError.
//nolint:exhaustivestruct
func handleError(err error) *httpError {
var mErr matrix.HTTPError
if !errors.As(err, &mErr) {
return &httpError{
Err: "not a HTTPError",
}
}
var httpErr httpError
if err := json.Unmarshal(mErr.Contents, &httpErr); err != nil {
return &httpError{
Err: "unmarshal failed",
}
}
return &httpErr
}
func (b *Bmatrix) containsAttachment(content map[string]interface{}) bool {
// Skip empty messages
if content["msgtype"] == nil {
return false
}
// Only allow image,video or file msgtypes
if !(content["msgtype"].(string) == "m.image" ||
content["msgtype"].(string) == "m.video" ||
content["msgtype"].(string) == "m.file") {
return false
}
return true
}
// getAvatarURL returns the avatar URL of the specified sender.
func (b *Bmatrix) getAvatarURL(sender string) string {
urlPath := b.mc.BuildURL("profile", sender, "avatar_url")
s := struct {
AvatarURL string `json:"avatar_url"`
}{}
err := b.mc.MakeRequest("GET", urlPath, nil, &s)
if err != nil {
b.Log.Errorf("getAvatarURL failed: %s", err)
return ""
}
url := strings.ReplaceAll(s.AvatarURL, "mxc://", b.GetString("Server")+"/_matrix/media/r0/thumbnail/")
if url != "" {
url += "?width=37&height=37&method=crop"
}
return url
}
|
