HPACK Static & Dynamic Tables (#41)

Author: dislogical

CMakeLists.txt

@@ -57,7 +57,8 @@ target_include_directories(${CMAKE_PROJECT_NAME} PUBLIC
         $<INSTALL_INTERFACE:include>)
 
 find_package(aws-c-io REQUIRED)
-target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC AWS::aws-c-io)
+find_package(aws-c-compression REQUIRED)
+target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC AWS::aws-c-io AWS::aws-c-compression)
 
 aws_prepare_shared_lib_exports(${CMAKE_PROJECT_NAME})
 

codebuild/common-posix.sh

@@ -43,6 +43,7 @@ if [ "$TRAVIS_OS_NAME" != "osx" ]; then
 fi
 install_library aws-c-common
 install_library aws-c-io
+install_library aws-c-compression
 
 mkdir -p build
 pushd build

codebuild/common-windows.bat

@@ -11,6 +11,7 @@ mkdir %INSTALL_DIR%
 
 CALL :install_library aws-c-common
 CALL :install_library aws-c-io
+CALL :install_library aws-c-compression
 
 mkdir %BUILDS_DIR%\aws-c-http-build
 cd %BUILDS_DIR%\aws-c-http-build

include/aws/http/private/hpack.h

@@ -0,0 +1,49 @@
+#ifndef AWS_HTTP_HPACK_H
+#define AWS_HTTP_HPACK_H
+
+/*
+ * Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+#include <aws/common/byte_buf.h>
+
+AWS_EXTERN_C_BEGIN
+
+struct aws_http_header;
+struct aws_hpack_context;
+
+/* Library-level init and shutdown */
+void aws_hpack_static_table_init(struct aws_allocator *allocator);
+void aws_hpack_static_table_clean_up(void);
+
+/* General HPACK API */
+struct aws_hpack_context *aws_hpack_context_new(struct aws_allocator *allocator, size_t max_dynamic_elements);
+void aws_hpack_context_destroy(struct aws_hpack_context *context);
+struct aws_http_header *aws_hpack_get_header(struct aws_hpack_context *context, size_t index);
+int aws_hpack_find_index(struct aws_hpack_context *context, const struct aws_http_header *header, size_t *index);
+int aws_hpack_insert_header(struct aws_hpack_context *context, const struct aws_http_header *header);
+int aws_hpack_resize_dynamic_table(struct aws_hpack_context *context, size_t new_max_elements);
+
+/* Public for testing purposes */
+int aws_hpack_encode_integer(uint64_t integer, uint8_t prefix_size, struct aws_byte_buf *output);
+int aws_hpack_decode_integer(struct aws_byte_cursor *to_decode, uint8_t prefix_size, uint64_t *integer);
+int aws_hpack_encode_string(
+    struct aws_hpack_context *context,
+    struct aws_byte_cursor *to_encode,
+    bool huffman_encode,
+    struct aws_byte_buf *output);
+
+AWS_EXTERN_C_END
+
+#endif /* AWS_HTTP_HPACK_H */

include/aws/http/private/hpack_header_static_table.def

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+#ifndef HEADER
+#error "Macro HEADER(index, name) must be defined before including this header file!"
+#endif
+
+#ifndef HEADER_WITH_VALUE
+#error "Macro HEADER_WITH_VALUE(index, name, value) must be defined before including this header file!"
+#endif
+
+HEADER(1, ":authority")
+HEADER_WITH_VALUE(2, ":method", "GET")
+HEADER_WITH_VALUE(3, ":method", "POST")
+HEADER_WITH_VALUE(4, ":path", "/")
+HEADER_WITH_VALUE(5, ":path", "/index.html")
+HEADER_WITH_VALUE(6, ":scheme", "http")
+HEADER_WITH_VALUE(7, ":scheme", "https")
+HEADER_WITH_VALUE(8, ":status", "200")
+HEADER_WITH_VALUE(9, ":status", "204")
+HEADER_WITH_VALUE(10, ":status", "206")
+HEADER_WITH_VALUE(11, ":status", "304")
+HEADER_WITH_VALUE(12, ":status", "400")
+HEADER_WITH_VALUE(13, ":status", "404")
+HEADER_WITH_VALUE(14, ":status", "500")
+HEADER(15, "accept-charset")
+HEADER_WITH_VALUE(16, "accept-encoding", "gzip,deflate")
+HEADER(17, "accept-language")
+HEADER(18, "accept-ranges")
+HEADER(19, "accept")
+HEADER(20, "access-control-allow-origin")
+HEADER(21, "age")
+HEADER(22, "allow")
+HEADER(23, "authorization")
+HEADER(24, "cache-control")
+HEADER(25, "content-disposition")
+HEADER(26, "content-encoding")
+HEADER(27, "content-language")
+HEADER(28, "content-length")
+HEADER(29, "content-location")
+HEADER(30, "content-range")
+HEADER(31, "content-type")
+HEADER(32, "cookie")
+HEADER(33, "date")
+HEADER(34, "etag")
+HEADER(35, "expect")
+HEADER(36, "expires")
+HEADER(37, "from")
+HEADER(38, "host")
+HEADER(39, "if-match")
+HEADER(40, "if-modified-since")
+HEADER(41, "if-none-match")
+HEADER(42, "if-range")
+HEADER(43, "if-unmodified-since")
+HEADER(44, "last-modified")
+HEADER(45, "link")
+HEADER(46, "location")
+HEADER(47, "max-forwards")
+HEADER(48, "proxy-authenticate")
+HEADER(49, "proxy-authorization")
+HEADER(50, "range")
+HEADER(51, "referer")
+HEADER(52, "refresh")
+HEADER(53, "retry-after")
+HEADER(54, "server")
+HEADER(55, "set-cookie")
+HEADER(56, "strict-transport-security")
+HEADER(57, "transfer-encoding")
+HEADER(58, "user-agent")
+HEADER(59, "vary")
+HEADER(60, "via")
+HEADER(61, "www-authenticate")