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
#![cfg_attr(feature = "strict", deny(warnings))]
#![deny(missing_docs, missing_debug_implementations, missing_copy_implementations, trivial_casts,
trivial_numeric_casts, unsafe_code, unstable_features, unused_import_braces,
unused_qualifications)]
extern crate base58;
extern crate base64;
extern crate crypto;
extern crate duniter_crypto;
#[macro_use]
extern crate lazy_static;
extern crate linked_hash_map;
extern crate regex;
use std::fmt::{Debug, Display, Error, Formatter};
use duniter_crypto::keys::BaseConvertionError;
pub mod blockchain;
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
pub struct BlockId(pub u32);
impl Display for BlockId {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
write!(f, "{}", self.0)
}
}
#[derive(Copy, Clone, PartialEq, Eq, Hash)]
pub struct Hash(pub [u8; 32]);
impl Display for Hash {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
write!(f, "{}", self.to_hex())
}
}
impl Debug for Hash {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
write!(f, "Hash({})", self)
}
}
impl Default for Hash {
fn default() -> Hash {
let default: [u8; 32] = [0; 32];
Hash(default)
}
}
impl Hash {
pub fn to_hex(&self) -> String {
let strings: Vec<String> = self.0.iter().map(|b| format!("{:02X}", b)).collect();
strings.join("")
}
pub fn from_hex(text: &str) -> Result<Hash, BaseConvertionError> {
if text.len() != 64 {
Err(BaseConvertionError::InvalidKeyLendth(text.len(), 64))
} else {
let mut hash = Hash([0u8; 32]);
let chars: Vec<char> = text.chars().collect();
for i in 0..64 {
if i % 2 != 0 {
continue;
}
let byte1 = chars[i].to_digit(16);
let byte2 = chars[i + 1].to_digit(16);
if byte1.is_none() {
return Err(BaseConvertionError::InvalidCharacter(chars[i], i));
} else if byte2.is_none() {
return Err(BaseConvertionError::InvalidCharacter(chars[i + 1], i + 1));
}
let byte1 = byte1.unwrap() as u8;
let byte2 = byte2.unwrap() as u8;
let byte = (byte1 << 4) | byte2;
hash.0[i / 2] = byte;
}
Ok(hash)
}
}
}
#[derive(Copy, Clone, PartialEq, Eq, Hash)]
pub struct BlockHash(Hash);
impl Display for BlockHash {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
write!(f, "{}", self.0.to_hex())
}
}
impl Debug for BlockHash {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
write!(f, "BlockHash({})", self)
}
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum BlockUIdParseError {
InvalidFormat(),
InvalidBlockId(),
InvalidBlockHash(),
}
#[derive(Copy, Clone, PartialEq, Eq, Hash)]
pub struct Blockstamp {
pub id: BlockId,
pub hash: BlockHash,
}
impl Display for Blockstamp {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
write!(f, "{}-{}", self.id, self.hash)
}
}
impl Debug for Blockstamp {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
write!(f, "BlockUId({})", self)
}
}
impl Default for Blockstamp {
fn default() -> Blockstamp {
Blockstamp {
id: BlockId(0),
hash: BlockHash(Hash::default()),
}
}
}
impl Blockstamp {
pub fn from_string(src: &str) -> Result<Blockstamp, BlockUIdParseError> {
let mut split = src.split('-');
if split.clone().count() != 2 {
Err(BlockUIdParseError::InvalidFormat())
} else {
let id = split.next().unwrap().parse::<u32>();
let hash = Hash::from_hex(split.next().unwrap());
if id.is_err() {
Err(BlockUIdParseError::InvalidBlockId())
} else if hash.is_err() {
Err(BlockUIdParseError::InvalidBlockHash())
} else {
Ok(Blockstamp {
id: BlockId(id.unwrap()),
hash: BlockHash(hash.unwrap()),
})
}
}
}
pub fn to_string(&self) -> String {
format!("{}", self)
}
}