pub fn encode_layered(
payload: impl AsRef<[u8]>,
strategies: &[Strategy],
) -> Result<String, EncodeError>Expand description
Apply multiple encoding strategies in sequence (layered encoding).
ยงErrors
Returns EncodeError::PayloadTooLarge if the input exceeds super::strategy::MAX_PAYLOAD_SIZE.
Returns EncodeError::LayeredOutputTooLarge if any intermediate output
exceeds MAX_LAYERED_OUTPUT_SIZE.
Examples found in repository?
examples/layered.rs (lines 16-19)
7fn main() {
8 let payload = "SELECT * FROM users WHERE id=1";
9
10 println!("Original payload:");
11 println!(" {}", payload);
12 println!();
13
14 // Layered encoding: apply multiple strategies in sequence
15 // This bypasses WAFs that decode once or twice before matching
16 let layered = encode_layered(
17 payload,
18 &[Strategy::SqlCommentInsertion, Strategy::UrlEncode],
19 )
20 .unwrap();
21
22 println!("Layered (SQL comments + URL encoding):");
23 println!(" {}", layered);
24 println!();
25
26 // More aggressive example: triple-layer for paranoid WAFs
27 let aggressive = encode_layered(
28 payload,
29 &[
30 Strategy::CaseAlternation,
31 Strategy::WhitespaceInsertion,
32 Strategy::DoubleUrlEncode,
33 ],
34 )
35 .unwrap();
36
37 println!("Aggressive 3-layer (case + whitespace + double URL):");
38 println!(
39 " {}",
40 aggressive[..aggressive.len().min(80)].to_string() + "..."
41 );
42 println!();
43
44 // Show pre-defined useful combinations
45 println!("Pre-defined useful combinations:");
46 for (i, combo) in layered_combinations(2).iter().enumerate() {
47 println!(" {}. {:?}", i + 1, combo);
48 }
49 println!();
50
51 // Demo: escalation ladder
52 println!("Escalation ladder (least to most aggressive):");
53 let strategies = all_strategies();
54 for (i, strategy) in strategies.iter().take(5).enumerate() {
55 let score = aggressiveness(*strategy);
56 let result = encode(payload, *strategy).unwrap();
57 println!(
58 " {}. {:?} (score: {:.1}): {}...",
59 i + 1,
60 strategy,
61 score,
62 &result[..result.len().min(40)]
63 );
64 }
65 println!(" ... ({} more strategies)", strategies.len() - 5);
66}