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
use crate::urlencode::BASE_SET;
use aws_smithy_types::date_time::{DateTimeFormatError, Format};
use aws_smithy_types::DateTime;
use percent_encoding::AsciiSet;
const GREEDY: &AsciiSet = &BASE_SET.remove(b'/');
#[non_exhaustive]
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum EncodingStrategy {
Default,
Greedy,
}
pub fn fmt_string<T: AsRef<str>>(t: T, strategy: EncodingStrategy) -> String {
let uri_set = if strategy == EncodingStrategy::Greedy {
GREEDY
} else {
BASE_SET
};
percent_encoding::utf8_percent_encode(t.as_ref(), uri_set).to_string()
}
pub fn fmt_timestamp(t: &DateTime, format: Format) -> Result<String, DateTimeFormatError> {
Ok(fmt_string(t.fmt(format)?, EncodingStrategy::Default))
}
#[cfg(test)]
mod test {
use crate::label::{fmt_string, EncodingStrategy};
use http::Uri;
use proptest::proptest;
#[test]
fn greedy_params() {
assert_eq!(fmt_string("a/b", EncodingStrategy::Default), "a%2Fb");
assert_eq!(fmt_string("a/b", EncodingStrategy::Greedy), "a/b");
}
proptest! {
#[test]
fn test_encode_request(s: String) {
let _: Uri = format!("http://host.example.com/{}", fmt_string(&s, EncodingStrategy::Default))
.parse()
.expect("all strings should be encoded properly");
let _: Uri = format!("http://host.example.com/{}", fmt_string(&s, EncodingStrategy::Greedy))
.parse()
.expect("all strings should be encoded properly");
}
}
}