Update LLHTTP and apply patch to support C++ interop

.licenseignore

@@ -32,7 +32,7 @@ Dockerfile
 **/Dockerfile
 Snippets/*
 Sources/CNIOAtomics/src/cpp_magic.h
-Sources/CNIOLLHTTP/LICENSE-MIT
+Sources/CNIOLLHTTP/LICENSE
 Sources/CNIOLLHTTP/c_nio_api.c
 Sources/CNIOLLHTTP/c_nio_http.c
 Sources/CNIOLLHTTP/c_nio_llhttp.c

Sources/CNIOLLHTTP/c_nio_api.c

@@ -60,29 +60,14 @@ static int wasm_on_headers_complete_wrap(llhttp_t* p) {
 }
 
 const llhttp_settings_t wasm_settings = {
-  wasm_on_message_begin,
-  wasm_on_url,
-  wasm_on_status,
-  NULL,
-  NULL,
-  wasm_on_header_field,
-  wasm_on_header_value,
-  NULL,
-  NULL,
-  wasm_on_headers_complete_wrap,
-  wasm_on_body,
-  wasm_on_message_complete,
-  NULL,
-  NULL,
-  NULL,
-  NULL,
-  NULL,
-  NULL,
-  NULL,
-  NULL,
-  NULL,
-  NULL,
-  NULL,
+  .on_message_begin = wasm_on_message_begin,
+  .on_url = wasm_on_url,
+  .on_status = wasm_on_status,
+  .on_header_field = wasm_on_header_field,
+  .on_header_value = wasm_on_header_value,
+  .on_headers_complete = wasm_on_headers_complete_wrap,
+  .on_body = wasm_on_body,
+  .on_message_complete = wasm_on_message_complete,
 };
 
 
@@ -129,7 +114,7 @@ void c_nio_llhttp_reset(llhttp_t* parser) {
   llhttp_type_t type = parser->type;
   const llhttp_settings_t* settings = parser->settings;
   void* data = parser->data;
-  uint8_t lenient_flags = parser->lenient_flags;
+  uint16_t lenient_flags = parser->lenient_flags;
 
   c_nio_llhttp__internal_init(parser);
 
@@ -318,6 +303,22 @@ void c_nio_llhttp_set_lenient_optional_crlf_after_chunk(llhttp_t* parser, int en
   }
 }
 
+void c_nio_llhttp_set_lenient_optional_cr_before_lf(llhttp_t* parser, int enabled) {
+  if (enabled) {
+    parser->lenient_flags |= LENIENT_OPTIONAL_CR_BEFORE_LF;
+  } else {
+    parser->lenient_flags &= ~LENIENT_OPTIONAL_CR_BEFORE_LF;
+  }
+}
+
+void c_nio_llhttp_set_lenient_spaces_after_chunk_size(llhttp_t* parser, int enabled) {
+  if (enabled) {
+    parser->lenient_flags |= LENIENT_SPACES_AFTER_CHUNK_SIZE;
+  } else {
+    parser->lenient_flags &= ~LENIENT_SPACES_AFTER_CHUNK_SIZE;
+  }
+}
+
 /* Callbacks */
 
 
@@ -328,6 +329,20 @@ int c_nio_llhttp__on_message_begin(llhttp_t* s, const char* p, const char* endp)
 }
 
 
+int c_nio_llhttp__on_protocol(llhttp_t* s, const char* p, const char* endp) {
+  int err;
+  SPAN_CALLBACK_MAYBE(s, on_protocol, p, endp - p);
+  return err;
+}
+
+
+int c_nio_llhttp__on_protocol_complete(llhttp_t* s, const char* p, const char* endp) {
+  int err;
+  CALLBACK_MAYBE(s, on_protocol_complete);
+  return err;
+}
+
+
 int c_nio_llhttp__on_url(llhttp_t* s, const char* p, const char* endp) {
   int err;
   SPAN_CALLBACK_MAYBE(s, on_url, p, endp - p);

Sources/CNIOLLHTTP/c_nio_http.c

@@ -42,13 +42,33 @@ int c_nio_llhttp__after_headers_complete(llhttp_t* parser, const char* p,
   int hasBody;
 
   hasBody = parser->flags & F_CHUNKED || parser->content_length > 0;
-  if (parser->upgrade && (parser->method == HTTP_CONNECT ||
-                          (parser->flags & F_SKIPBODY) || !hasBody)) {
+  if (
+      (parser->upgrade && (parser->method == HTTP_CONNECT ||
+                          (parser->flags & F_SKIPBODY) || !hasBody)) ||
+      /* See RFC 2616 section 4.4 - 1xx e.g. Continue */
+      (parser->type == HTTP_RESPONSE && parser->status_code == 101)
+  ) {
     /* Exit, the rest of the message is in a different protocol. */
     return 1;
   }
 
-  if (parser->flags & F_SKIPBODY) {
+  if (parser->type == HTTP_RESPONSE && parser->status_code == 100) {
+    /* No body, restart as the message is complete */
+    return 0;
+  }
+
+  /* See RFC 2616 section 4.4 */
+  if (
+    parser->flags & F_SKIPBODY ||         /* response to a HEAD request */
+    (
+      parser->type == HTTP_RESPONSE && (
+        parser->status_code == 102 ||     /* Processing */
+        parser->status_code == 103 ||     /* Early Hints */
+        parser->status_code == 204 ||     /* No Content */
+        parser->status_code == 304        /* Not Modified */
+      )
+    )
+  ) {
     return 0;
   } else if (parser->flags & F_CHUNKED) {
     /* chunked encoding - ignore Content-Length header, prepare for a chunk */