Struct OrderedHeaders 

pub struct OrderedHeaders { /* private fields */ }

Ordered headers with JA4H fingerprint calculation.

JA4H (JA4 for HTTP) fingerprints HTTP clients based on:

• Header order
• Header names (normalized to lowercase)

This implementation is intentionally header-name/order based and does not include header values in the hash. Firefox version differences that only change the User-Agent value are not JA4H-distinguishable here.

This type preserves exact header order for fingerprint accuracy.

Implementations

impl OrderedHeaders

pub fn new(headers: Vec<(String, String)>) -> Self

Create new ordered headers.

pub fn chrome_navigation() -> Self

Create Chrome navigation headers with exact order. Uses Chrome 148 (latest implemented) by default.

pub fn firefox_navigation() -> Self

Create Firefox navigation headers with exact order. Uses Firefox 151 (latest implemented release) by default.

pub fn headers(&self) -> &[(String, String)]

Get headers as vector pairs (cached for stable references).

pub fn headers_ref(&self) -> &Headers

Borrow the underlying byte-spanned headers.

pub fn ja4h_fingerprint(&self) -> String

Calculate JA4H fingerprint string.

JA4H format: header_names|header_order_hash

• header_names: comma-separated lowercase header names
• header_order_hash: hash of header order

pub fn add(self, name: impl Into<String>, value: impl Into<String>) -> Self

Add a header (preserves order).

pub fn into_vec(self) -> Vec<(String, String)>

Convert to vector of owned headers.

Trait Implementations

impl Clone for OrderedHeaders

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OrderedHeaders

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<OrderedHeaders> for Vec<(String, String)>

fn from(oh: OrderedHeaders) -> Self

Converts to this type from the input type.

impl From<Vec<(String, String)>> for OrderedHeaders

fn from(headers: Vec<(String, String)>) -> Self

Converts to this type from the input type.