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
|
package mboxer
import (
"bytes"
"crypto/sha256"
"encoding/hex"
"fmt"
"io"
"slices"
"git.sr.ht/~rjarry/aerc/lib/rfc822"
"git.sr.ht/~rjarry/aerc/models"
)
type mailboxContainer struct {
mailboxes map[string]*container
}
func (md *mailboxContainer) Names() []string {
files := make([]string, 0)
for file := range md.mailboxes {
files = append(files, file)
}
return files
}
func (md *mailboxContainer) Mailbox(f string) (*container, bool) {
mb, ok := md.mailboxes[f]
return mb, ok
}
func (md *mailboxContainer) Create(file string) *container {
md.mailboxes[file] = &container{filename: file}
return md.mailboxes[file]
}
func (md *mailboxContainer) Remove(file string) error {
delete(md.mailboxes, file)
return nil
}
func (md *mailboxContainer) DirectoryInfo(file string) *models.DirectoryInfo {
var exists int
if md, ok := md.Mailbox(file); ok {
exists = len(md.Uids())
}
return &models.DirectoryInfo{
Name: file,
Exists: exists,
Recent: 0,
Unseen: 0,
}
}
func (md *mailboxContainer) Copy(dest, src string, uids []models.UID) error {
srcmbox, ok := md.Mailbox(src)
if !ok {
return fmt.Errorf("source %s not found", src)
}
destmbox, ok := md.Mailbox(dest)
if !ok {
return fmt.Errorf("destination %s not found", dest)
}
for _, uidSrc := range srcmbox.Uids() {
found := slices.Contains(uids, uidSrc)
if found {
msg, err := srcmbox.Message(uidSrc)
if err != nil {
return fmt.Errorf("could not get message with uid %s from folder %s", uidSrc, src)
}
r, err := msg.NewReader()
if err != nil {
return fmt.Errorf("could not get reader for message with uid %s", uidSrc)
}
flags, err := msg.ModelFlags()
if err != nil {
return fmt.Errorf("could not get flags for message with uid %s", uidSrc)
}
err = destmbox.Append(r, flags)
if err != nil {
return fmt.Errorf("could not append data to mbox: %w", err)
}
}
}
md.mailboxes[dest] = destmbox
return nil
}
type container struct {
filename string
messages []rfc822.RawMessage
}
func (f *container) Uids() []models.UID {
uids := make([]models.UID, len(f.messages))
for i, m := range f.messages {
uids[i] = m.UID()
}
return uids
}
func (f *container) Message(uid models.UID) (rfc822.RawMessage, error) {
for _, m := range f.messages {
if uid == m.UID() {
return m, nil
}
}
return &message{}, fmt.Errorf("uid [%s] not found", uid)
}
func (f *container) Delete(uids []models.UID) (deleted []models.UID) {
newMessages := make([]rfc822.RawMessage, 0)
for _, m := range f.messages {
del := slices.Contains(uids, m.UID())
if del {
deleted = append(deleted, m.UID())
} else {
newMessages = append(newMessages, m)
}
}
f.messages = newMessages
return
}
func (f *container) Append(r io.Reader, flags models.Flags) error {
data, err := io.ReadAll(r)
if err != nil {
return err
}
f.messages = append(f.messages, &message{
uid: uidFromContents(data),
flags: flags,
content: data,
})
return nil
}
func uidFromContents(data []byte) models.UID {
sum := sha256.New()
sum.Write(data)
return models.UID(hex.EncodeToString(sum.Sum(nil)))
}
// message implements the lib.RawMessage interface
type message struct {
uid models.UID
flags models.Flags
content []byte
}
func (m *message) NewReader() (io.ReadCloser, error) {
return io.NopCloser(bytes.NewReader(m.content)), nil
}
func (m *message) ModelFlags() (models.Flags, error) {
return m.flags, nil
}
func (m *message) Labels() ([]string, error) {
return nil, nil
}
func (m *message) UID() models.UID {
return m.uid
}
func (m *message) SetFlag(flag models.Flags, state bool) error {
if state {
m.flags |= flag
} else {
m.flags &^= flag
}
return nil
}
|
