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
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
|
use std::fmt;
use std::str;
use std::hash::{Hash, Hasher};
use std::cell::RefCell;
use quickcheck::{Arbitrary, Gen};
use rfc2822::{NameAddr, AddrSpec};
use Result;
use packet;
use Packet;
/// Holds a UserID packet.
///
/// See [Section 5.11 of RFC 4880] for details.
///
/// [Section 5.11 of RFC 4880]: https://tools.ietf.org/html/rfc4880#section-5.11
pub struct UserID {
/// CTB packet header fields.
pub(crate) common: packet::Common,
/// The user id.
///
/// According to [RFC 4880], the text is by convention UTF-8 encoded
/// and in "mail name-addr" form, i.e., "Name (Comment)
/// <email@example.com>".
///
/// [RFC 4880]: https://tools.ietf.org/html/rfc4880#section-5.11
///
/// Use `UserID::default()` to get a UserID with a default settings.
value: Vec<u8>,
parsed: RefCell<Option<(Option<String>, Option<String>, Option<String>)>>,
}
impl From<Vec<u8>> for UserID {
fn from(u: Vec<u8>) -> Self {
UserID {
common: Default::default(),
value: u,
parsed: RefCell::new(None),
}
}
}
impl<'a> From<&'a str> for UserID {
fn from(u: &'a str) -> Self {
let b = u.as_bytes();
let mut v = Vec::with_capacity(b.len());
v.extend_from_slice(b);
v.into()
}
}
impl fmt::Display for UserID {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let userid = String::from_utf8_lossy(&self.value[..]);
write!(f, "{}", userid)
}
}
impl fmt::Debug for UserID {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let userid = String::from_utf8_lossy(&self.value[..]);
f.debug_struct("UserID")
.field("value", &userid)
.finish()
}
}
impl PartialEq for UserID {
fn eq(&self, other: &UserID) -> bool {
self.common == other.common
&& self.value == other.value
}
}
impl Eq for UserID {
}
impl Hash for UserID {
fn hash<H: Hasher>(&self, state: &mut H) {
// We hash only the data; the cache does not implement hash.
self.common.hash(state);
self.value.hash(state);
}
}
impl Clone for UserID {
fn clone(&self) -> Self {
UserID {
common: self.common.clone(),
value: self.value.clone(),
parsed: RefCell::new(None),
}
}
}
impl UserID {
/// Gets the user ID packet's value.
pub fn value(&self) -> &[u8] {
self.value.as_slice()
}
fn do_parse(&self) -> Result<()> {
if self.parsed.borrow().is_none() {
let s = str::from_utf8(&self.value)?;
*self.parsed.borrow_mut() = Some(match NameAddr::parse(s) {
Ok(na) => (na.name().map(|s| s.to_string()),
na.comment().map(|s| s.to_string()),
na.address().map(|s| s.to_string())),
Err(err) => {
// Try with the addr-spec parser.
if let Ok(a) = AddrSpec::parse(s) {
(None, None, Some(a.address().to_string()))
} else {
// Return the error from the NameAddr parser.
return Err(err.into());
}
}
});
}
Ok(())
}
/// Treats the user ID as an RFC 2822 name-addr and extracts the
/// display name, if any.
pub fn name(&self) -> Result<Option<String>> {
self.do_parse()?;
match *self.parsed.borrow() {
Some((ref name, ref _comment, ref _address)) =>
Ok(name.as_ref().map(|s| s.clone())),
None => unreachable!(),
}
}
/// Treats the user ID as an RFC 2822 name-addr and extracts the
/// first comment, if any.
pub fn comment(&self) -> Result<Option<String>> {
self.do_parse()?;
match *self.parsed.borrow() {
Some((ref _name, ref comment, ref _address)) =>
Ok(comment.as_ref().map(|s| s.clone())),
None => unreachable!(),
}
}
/// Treats the user ID as an RFC 2822 name-addr and extracts the
/// address, if any.
pub fn address(&self) -> Result<Option<String>> {
self.do_parse()?;
match *self.parsed.borrow() {
Some((ref _name, ref _comment, ref address)) =>
Ok(address.as_ref().map(|s| s.clone())),
None => unreachable!(),
}
}
}
impl From<UserID> for Packet {
fn from(s: UserID) -> Self {
Packet::UserID(s)
}
}
impl Arbitrary for UserID {
fn arbitrary<G: Gen>(g: &mut G) -> Self {
Vec::<u8>::arbitrary(g).into()
}
}
#[cfg(test)]
mod tests {
use super::*;
use parse::Parse;
use serialize::SerializeInto;
quickcheck! {
fn roundtrip(p: UserID) -> bool {
let q = UserID::from_bytes(&p.to_vec().unwrap()).unwrap();
assert_eq!(p, q);
true
}
}
#[test]
fn name_addr() {
fn c(value: &str, ok: bool,
name: Option<&str>, comment: Option<&str>, address: Option<&str>)
{
let name = name.map(|s| s.to_string());
let comment = comment.map(|s| s.to_string());
let address =
|
