-
Notifications
You must be signed in to change notification settings - Fork 3
/
filter.rs
197 lines (182 loc) · 8.31 KB
/
filter.rs
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
use erlang_term::{RawTerm, Term};
// in Elixir:
// [
// {0, true},
// [:jR, 1.0],
// [],
// {#Reference<0.3700278564.2761949185.135793>},
// %{
// {#Reference<0.3700278564.2761949185.135794>} => %{
// 3 => #Reference<0.3700278564.2761949185.135795>,
// :o => true
// },
// {2, :XdT8, true} => [-0.21875, false]
// },
// #Reference<0.3700278564.2761949185.135796>,
// {%{-7 => #Reference<0.3700278564.2761949185.135797>}, [0.328125, ""]},
// -0.984375,
// [
// [#Reference<0.3700278564.2761949185.135801>],
// %{
// #Reference<0.3700278564.2761949185.135798> => #Reference<0.3700278564.2761949185.135799>,
// #Reference<0.3700278564.2761949185.135800> => false
// },
// %{9 => true}
// ],
// {912.4443359375, :RCJb5, <<87, 16, 45, 36, 10, 71, 200>>}
// ]
const FILE1: &[u8] = &[
131, 108, 0, 0, 0, 10, 104, 2, 97, 0, 100, 0, 4, 116, 114, 117, 101, 108, 0, 0, 0, 2, 100, 0,
2, 106, 82, 70, 63, 240, 0, 0, 0, 0, 0, 0, 106, 106, 104, 1, 90, 0, 3, 100, 0, 13, 110, 111,
110, 111, 100, 101, 64, 110, 111, 104, 111, 115, 116, 0, 0, 0, 0, 0, 2, 18, 113, 164, 160, 0,
1, 220, 141, 197, 36, 116, 0, 0, 0, 2, 104, 1, 90, 0, 3, 100, 0, 13, 110, 111, 110, 111, 100,
101, 64, 110, 111, 104, 111, 115, 116, 0, 0, 0, 0, 0, 2, 18, 114, 164, 160, 0, 1, 220, 141,
197, 36, 116, 0, 0, 0, 2, 97, 3, 90, 0, 3, 100, 0, 13, 110, 111, 110, 111, 100, 101, 64, 110,
111, 104, 111, 115, 116, 0, 0, 0, 0, 0, 2, 18, 115, 164, 160, 0, 1, 220, 141, 197, 36, 100, 0,
1, 111, 100, 0, 4, 116, 114, 117, 101, 104, 3, 97, 2, 100, 0, 4, 88, 100, 84, 56, 100, 0, 4,
116, 114, 117, 101, 108, 0, 0, 0, 2, 70, 191, 204, 0, 0, 0, 0, 0, 0, 100, 0, 5, 102, 97, 108,
115, 101, 106, 90, 0, 3, 100, 0, 13, 110, 111, 110, 111, 100, 101, 64, 110, 111, 104, 111, 115,
116, 0, 0, 0, 0, 0, 2, 18, 116, 164, 160, 0, 1, 220, 141, 197, 36, 104, 2, 116, 0, 0, 0, 1, 98,
255, 255, 255, 249, 90, 0, 3, 100, 0, 13, 110, 111, 110, 111, 100, 101, 64, 110, 111, 104, 111,
115, 116, 0, 0, 0, 0, 0, 2, 18, 117, 164, 160, 0, 1, 220, 141, 197, 36, 108, 0, 0, 0, 2, 70,
63, 213, 0, 0, 0, 0, 0, 0, 109, 0, 0, 0, 0, 106, 70, 191, 239, 128, 0, 0, 0, 0, 0, 108, 0, 0,
0, 3, 108, 0, 0, 0, 1, 90, 0, 3, 100, 0, 13, 110, 111, 110, 111, 100, 101, 64, 110, 111, 104,
111, 115, 116, 0, 0, 0, 0, 0, 2, 18, 121, 164, 160, 0, 1, 220, 141, 197, 36, 106, 116, 0, 0, 0,
2, 90, 0, 3, 100, 0, 13, 110, 111, 110, 111, 100, 101, 64, 110, 111, 104, 111, 115, 116, 0, 0,
0, 0, 0, 2, 18, 118, 164, 160, 0, 1, 220, 141, 197, 36, 90, 0, 3, 100, 0, 13, 110, 111, 110,
111, 100, 101, 64, 110, 111, 104, 111, 115, 116, 0, 0, 0, 0, 0, 2, 18, 119, 164, 160, 0, 1,
220, 141, 197, 36, 90, 0, 3, 100, 0, 13, 110, 111, 110, 111, 100, 101, 64, 110, 111, 104, 111,
115, 116, 0, 0, 0, 0, 0, 2, 18, 120, 164, 160, 0, 1, 220, 141, 197, 36, 100, 0, 5, 102, 97,
108, 115, 101, 116, 0, 0, 0, 1, 97, 9, 100, 0, 4, 116, 114, 117, 101, 106, 104, 3, 70, 64, 140,
131, 142, 0, 0, 0, 0, 100, 0, 5, 82, 67, 74, 98, 53, 109, 0, 0, 0, 7, 87, 16, 45, 36, 10, 71,
200, 106,
];
// in Elixir:
// [
// [],
// %{#Reference<0.3700278564.2761949185.136089> => 2},
// [-2.125],
// [:d9, 10.0625],
// :o81f,
// %{-7.953125 => :t, :BX => 1, #Reference<0.3700278564.2761949185.136090> => :_},
// %{
// {%{FRd5T: true}} => {},
// {#Reference<0.3700278564.2761949185.136091>, true} => [:q]
// },
// %{{%{}, %{}} => [%{}]},
// [],
// %{
// %{
// 6 => <<152, 194, 130, 3, 193, 5, 219, 93, 122>>,
// #Reference<0.3700278564.2761949185.136092> => true
// } => 289.8544921875
// }
// ]
const FILE2: &[u8] = &[
131, 108, 0, 0, 0, 10, 106, 116, 0, 0, 0, 1, 90, 0, 3, 100, 0, 13, 110, 111, 110, 111, 100,
101, 64, 110, 111, 104, 111, 115, 116, 0, 0, 0, 0, 0, 2, 19, 153, 164, 160, 0, 1, 220, 141,
197, 36, 97, 2, 108, 0, 0, 0, 1, 70, 192, 1, 0, 0, 0, 0, 0, 0, 106, 108, 0, 0, 0, 2, 100, 0, 2,
100, 57, 70, 64, 36, 32, 0, 0, 0, 0, 0, 106, 100, 0, 4, 111, 56, 49, 102, 116, 0, 0, 0, 3, 70,
192, 31, 208, 0, 0, 0, 0, 0, 100, 0, 1, 116, 100, 0, 2, 66, 88, 97, 1, 90, 0, 3, 100, 0, 13,
110, 111, 110, 111, 100, 101, 64, 110, 111, 104, 111, 115, 116, 0, 0, 0, 0, 0, 2, 19, 154, 164,
160, 0, 1, 220, 141, 197, 36, 100, 0, 1, 95, 116, 0, 0, 0, 2, 104, 1, 116, 0, 0, 0, 1, 100, 0,
5, 70, 82, 100, 53, 84, 100, 0, 4, 116, 114, 117, 101, 104, 0, 104, 2, 90, 0, 3, 100, 0, 13,
110, 111, 110, 111, 100, 101, 64, 110, 111, 104, 111, 115, 116, 0, 0, 0, 0, 0, 2, 19, 155, 164,
160, 0, 1, 220, 141, 197, 36, 100, 0, 4, 116, 114, 117, 101, 108, 0, 0, 0, 1, 100, 0, 1, 113,
106, 116, 0, 0, 0, 1, 104, 2, 116, 0, 0, 0, 0, 116, 0, 0, 0, 0, 108, 0, 0, 0, 1, 116, 0, 0, 0,
0, 106, 106, 116, 0, 0, 0, 1, 116, 0, 0, 0, 2, 97, 6, 109, 0, 0, 0, 9, 152, 194, 130, 3, 193,
5, 219, 93, 122, 90, 0, 3, 100, 0, 13, 110, 111, 110, 111, 100, 101, 64, 110, 111, 104, 111,
115, 116, 0, 0, 0, 0, 0, 2, 19, 156, 164, 160, 0, 1, 220, 141, 197, 36, 100, 0, 4, 116, 114,
117, 101, 70, 64, 114, 29, 172, 0, 0, 0, 0, 106,
];
fn main() {
if std::env::args().any(|x| x == "--help") {
println!("small example how to filter etf binaries");
println!("optionally you can give the '--json' flag to output in a more readable format");
return;
}
let mut json_flag = false;
if std::env::args().any(|x| x == "--json") {
json_flag = true;
}
// load your files
let files = &[FILE1, FILE2];
for file in files {
let loaded_term = RawTerm::from_bytes(file).expect("assume bytes are valid etf");
// apply filter
if let Some(filtered_data) = filter(loaded_term, json_flag) {
if json_flag {
// print as json
let term = Term::from(filtered_data);
print_json(term);
} else {
// store the bytes
println!("{:?}", filtered_data.to_bytes());
}
}
}
}
fn filter_vec(list: Vec<RawTerm>, json_flag: bool) -> Vec<RawTerm> {
list.into_iter()
.filter_map(|term| filter(term, json_flag))
.collect()
}
fn replace_invalid(list: Vec<RawTerm>, json_flag: bool) -> Vec<RawTerm> {
list.into_iter()
.map(|term| {
if let Some(filtered_term) = filter(term, json_flag) {
filtered_term
} else {
// or put RawTerm::Nil
RawTerm::SmallAtom("nil".to_string())
}
})
.collect()
}
fn filter(term: RawTerm, json_flag: bool) -> Option<RawTerm> {
match term {
RawTerm::List(list) => Some(RawTerm::List(filter_vec(list, json_flag))),
RawTerm::SmallTuple(list) => Some(RawTerm::SmallTuple(replace_invalid(list, json_flag))),
RawTerm::LargeTuple(list) => Some(RawTerm::LargeTuple(replace_invalid(list, json_flag))),
RawTerm::Map(tuple_list) => {
let mut new_map = Vec::new();
for (key, value) in tuple_list {
let filtered_key = filter(key, json_flag);
let filtered_value = filter(value, json_flag);
if filtered_key.is_none() | filtered_value.is_none() {
continue;
}
let new_key = filtered_key.unwrap();
if json_flag {
// json only allows string keys
if !new_key.is_string_like() {
continue;
}
}
new_map.push((new_key, filtered_value.unwrap()));
}
Some(RawTerm::Map(new_map))
}
RawTerm::SmallInt(_)
| RawTerm::Int(_)
| RawTerm::Atom(_)
| RawTerm::SmallAtom(_)
| RawTerm::AtomDeprecated(_)
| RawTerm::SmallAtomDeprecated(_)
| RawTerm::Float(_)
| RawTerm::Binary(_)
| RawTerm::String(_)
| RawTerm::Nil => Some(term),
_ => None,
}
}
#[cfg(feature = "serde_impl")]
fn print_json(term: Term) {
println!("{}", serde_json::to_string_pretty(&term).unwrap())
}
#[cfg(not(feature = "serde_impl"))]
fn print_json(term: Term) {
println!("printing without serde_impl feature will just debug print the term.");
println!("enable json printing by calling the example with `--features=serde_impl`");
println!("{:#?}", term)
}