ConfigureHTTP3Client configures an http.Client to use HTTP/3

QUIC fingerprinting utilities

CreateUQuicSpecFromJA4 creates a QUIC specification from a JA4 fingerprint This function maps JA4 characteristics to appropriate QUIC transport specs

JA4 is a TLS client fingerprinting technique that captures both TLS and HTTP fingerprints Format: <TLS version><TLS ciphers hash>_<TLS extensions hash

GenerateJA4H2 generates a JA4 HTTP/2 fingerprint from HTTP/2 settings

GenerateJA4HTTP generates a JA4 HTTP fingerprint from HTTP headers only

GetPreservedID returns the original extension ID

GetPreservedID returns the original extension ID

GetPreservedID returns the original extension ID

GetPreservedID returns the original extension ID

GetPreservedID returns the original extension ID

GetPreservedID returns the original extension ID

GetPreservedID returns the original extension ID

NewCustomDelegatedCredentialsExtension creates a new delegated credentials extension

NewHTTP3RoundTripper creates a new HTTP/3 round tripper with custom fingerprinting

NewHTTP3TransportWithUQuic creates a new HTTP/3 transport with UQuic fingerprinting support

NewTransport creates a new HTTP client transport that modifies HTTPS requests to imitiate a specific JA3 hash and User-Agent. # Example Usage import (

NewTransportWithHTTP2Fingerprint creates a new HTTP client transport with HTTP/2 fingerprinting

NewTransportWithJA4 creates a new HTTP client transport that modifies HTTPS requests using JA4 fingerprinting.

NewTransportWithProxy creates a new HTTP client transport that modifies HTTPS requests to imitiate a specific JA3 hash and User-Agent, optionally spec

NewUQuicHTTP3Transport creates a new UQuic-based HTTP/3 transport

ParseJA4HString parses a JA4H (HTTP Client) string into its components JA4H format: <method_version>_<headers_hash>_<cookies_hash> Example: po11_73a4f

ParseJA4String parses a JA4 string into its components JA4 format: <TLS version><cipher hash>_<extensions hash>_<headers hash>_<UA hash> Example: t13d

RoundTrip implements the http.RoundTripper interface

TestAllPossibleByteValues tests that all byte values (0-255) are preserved This is a comprehensive test for the UTF-8 corruption issue

TestBinaryDataPreservation tests that binary data is preserved correctly without corruption

TestBinaryImageDownload tests downloading binary image data and accessing via BodyBytes

TestBinaryImageUpload tests uploading binary image data using BodyBytes

TestBinaryResponseIntegrity tests that BodyBytes field in responses preserves binary data

TestCachedTransportEdgeCase specifically tests the edge case where rt.cachedTransports[addr] != nil in dialTLS

TestDebugBinaryResponse provides detailed debugging information for binary data handling This test helps verify the implementation details and provide

Test that getTransport no longer panics when dialTLS returns (conn, nil) due to a cached connection/transport already being present for the address.

{"ja3_hash":"aa7744226c695c0b2e440419848cf700", "ja3": "771,4865-4867-4866-49195-49199-52393-52392-49196-49200-49162-49161-49171-49172-156-157-47-53-1

TestHTTP2Fingerprint_ApplyHonoursParsedPriority asserts that the Apply() method drives HeaderPriority from parsed Exclusive / StreamDep / Weight rathe

TestHTTP2Fingerprint_RoundTrip asserts that parsing a custom HTTP/2 fingerprint string and applying it preserves the parsed values, and that the depre

TestHTTP2Fingerprint_StreamDependencyDeprecatedAlias asserts that the deprecated StreamDependency field is still settable for back-compat with the pre

TestIssue297BinaryCorruptionFix specifically tests the fix for GitHub issue #297 where binary data was corrupted due to UTF-8 string conversion

TestLargeBinaryDataHandling tests handling of large binary files without corruption

{"ja3_hash":"aa7744226c695c0b2e440419848cf700", "ja3": "771,4865-4867-4866-49195-49199-52393-52392-49196-49200-49162-49161-49171-49172-156-157-47-53-1

TestMixedMultipartWithBinary tests multipart form data with binary file using BodyBytes

TestModernChromeSpec_DefaultPreservesECHAndALPS asserts that ModernChromeSpec(false) emits the full Chrome extension list including the BoringGREASEEC

TestModernChromeSpec_ForceHTTP1 asserts the BLOCKER fix: when forceHTTP1 is true, ECH must still be present, ALPN must advertise only http/1.1, and AL

TestPanicRegression tests the specific scenario that caused the panic: Multiple goroutines making requests to the same host where a cached transport a

TestSSEResponse is commented out due to struct field access issues func TestSSEResponse(t *testing.T) { // Create an HTTP response for testing resp

TestTLS13_CurveFiltering tests that TLS 1.3 curve filtering works properly

TestTLS13_SpecificCurveHandling tests the specific curve error handling

UnmarshalJSON implements json.Unmarshaler inferface.

UnmarshalJSON implements json.Unmarshaler inferface.

WSEndpoint exports the main cycletls function as we websocket connection that clients can connect to