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
// =============================================================================
// Copyright (c) 2025 - 2026 Haixing Hu.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0.
// =============================================================================
//! Safe rendered HTTP header values.
use std::fmt::{
self,
Debug,
Display,
Formatter,
};
use crate::LogSafeText;
/// Owns a deterministic log-safe rendering of an HTTP header map.
#[must_use = "render or otherwise consume the redacted headers"]
#[derive(Clone, PartialEq, Eq)]
pub struct RedactedHeaders {
/// Sorted, escaped representation containing no unprocessed values.
text: LogSafeText<'static>,
}
impl RedactedHeaders {
/// Creates redacted headers from already escaped text.
///
/// # Parameters
///
/// * `text` - Complete log-safe rendering.
///
/// # Returns
///
/// An opaque safe header result.
#[inline(always)]
pub(super) const fn new(text: LogSafeText<'static>) -> Self {
Self { text }
}
/// Returns the complete safe rendering.
///
/// # Returns
///
/// A borrowed log-safe header representation.
#[inline]
pub const fn log_safe_text(&self) -> &LogSafeText<'static> {
&self.text
}
/// Consumes the result and returns its safe rendering.
///
/// # Returns
///
/// Owned log-safe header text.
#[inline]
pub fn into_log_safe_text(self) -> LogSafeText<'static> {
self.text
}
}
impl Display for RedactedHeaders {
/// Writes the safe header representation.
///
/// # Parameters
///
/// * `formatter` - Destination formatting context.
///
/// # Returns
///
/// The formatter result.
///
/// # Errors
///
/// Returns [`fmt::Error`] when the destination rejects a write.
#[inline]
fn fmt(&self, formatter: &mut Formatter<'_>) -> fmt::Result {
Display::fmt(&self.text, formatter)
}
}
impl Debug for RedactedHeaders {
/// Writes only the safe header representation.
///
/// # Parameters
///
/// * `formatter` - Destination formatting context.
///
/// # Returns
///
/// The formatter result.
///
/// # Errors
///
/// Returns [`fmt::Error`] when the destination rejects a write.
#[inline]
fn fmt(&self, formatter: &mut Formatter<'_>) -> fmt::Result {
formatter
.debug_tuple("RedactedHeaders")
.field(&self.text)
.finish()
}
}