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s3_request_messages.c
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/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include "aws/s3/private/s3_request_messages.h"
#include "aws/s3/private/s3_meta_request_impl.h"
#include "aws/s3/private/s3_util.h"
#include <aws/cal/hash.h>
#include <aws/common/byte_buf.h>
#include <aws/common/encoding.h>
#include <aws/common/string.h>
#include <aws/common/uri.h>
#include <aws/http/request_response.h>
#include <aws/io/async_stream.h>
#include <aws/io/stream.h>
#include <inttypes.h>
const struct aws_byte_cursor g_s3_create_multipart_upload_excluded_headers[] = {
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Length"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source-range"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-crc64nvme"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-crc32c"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-crc32"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-sha1"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-sha256"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("if-none-match"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-create-session-mode"),
};
const size_t g_s3_create_multipart_upload_excluded_headers_count =
AWS_ARRAY_SIZE(g_s3_create_multipart_upload_excluded_headers);
const struct aws_byte_cursor g_s3_upload_part_excluded_headers[] = {
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-acl"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Cache-Control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Disposition"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Encoding"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Language"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Length"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Type"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Expires"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-full-control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-write-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-storage-class"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-website-redirect-location"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-aws-kms-key-id"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-context"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-bucket-key-enabled"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-tagging"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-mode"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-retain-until-date"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-legal-hold"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-crc64nvme"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-crc32c"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-crc32"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-sha1"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-sha256"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("if-none-match"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-create-session-mode"),
};
const size_t g_s3_upload_part_excluded_headers_count = AWS_ARRAY_SIZE(g_s3_upload_part_excluded_headers);
const struct aws_byte_cursor g_s3_complete_multipart_upload_excluded_headers[] = {
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-acl"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Cache-Control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Disposition"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Encoding"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Language"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Length"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Type"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Expires"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-full-control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-write-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-storage-class"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-website-redirect-location"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-customer-algorithm"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-customer-key"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-customer-key-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-aws-kms-key-id"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-context"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-bucket-key-enabled"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-tagging"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-mode"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-retain-until-date"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-legal-hold"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source-range"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-mp-object-size"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-create-session-mode"),
};
const size_t g_s3_complete_multipart_upload_excluded_headers_count =
AWS_ARRAY_SIZE(g_s3_complete_multipart_upload_excluded_headers);
/* The server-side encryption (SSE) is needed only when the object was created using a checksum algorithm for complete
* multipart upload. */
const struct aws_byte_cursor g_s3_complete_multipart_upload_with_checksum_excluded_headers[] = {
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-acl"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Cache-Control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Disposition"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Encoding"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Language"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Length"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Type"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Expires"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-full-control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-write-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-storage-class"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-website-redirect-location"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-aws-kms-key-id"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-context"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-bucket-key-enabled"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-tagging"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-mode"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-retain-until-date"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-legal-hold"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source-range"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-sdk-checksum-algorithm"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-mp-object-size"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-create-session-mode"),
};
const struct aws_byte_cursor g_s3_list_parts_excluded_headers[] = {
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-acl"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Cache-Control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Disposition"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Encoding"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Language"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Length"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Type"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Expires"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-full-control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-write-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-storage-class"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-website-redirect-location"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-customer-algorithm"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-customer-key"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-customer-key-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-aws-kms-key-id"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-context"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-bucket-key-enabled"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-tagging"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-mode"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-retain-until-date"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-legal-hold"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source-range"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-create-session-mode"),
};
const size_t g_s3_list_parts_excluded_headers_count = AWS_ARRAY_SIZE(g_s3_list_parts_excluded_headers);
const struct aws_byte_cursor g_s3_list_parts_with_checksum_excluded_headers[] = {
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-acl"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Cache-Control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Disposition"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Encoding"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Language"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Length"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Type"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Expires"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-full-control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-write-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-storage-class"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-website-redirect-location"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-aws-kms-key-id"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-context"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-bucket-key-enabled"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-tagging"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-mode"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-retain-until-date"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-legal-hold"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source-range"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-create-session-mode"),
};
const size_t g_s3_list_parts_with_checksum_excluded_headers_count =
AWS_ARRAY_SIZE(g_s3_list_parts_with_checksum_excluded_headers);
const struct aws_byte_cursor g_s3_abort_multipart_upload_excluded_headers[] = {
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-acl"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Cache-Control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Disposition"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Encoding"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Language"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Length"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Content-Type"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("Expires"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-full-control"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-read-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-grant-write-acp"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-storage-class"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-website-redirect-location"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-customer-algorithm"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-customer-key"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-customer-key-MD5"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-aws-kms-key-id"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-context"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-bucket-key-enabled"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-tagging"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-mode"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-retain-until-date"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-object-lock-legal-hold"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source-range"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("if-none-match"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-create-session-mode"),
};
const struct aws_byte_cursor g_s3_create_session_allowed_headers[] = {
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-create-session-mode"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-aws-kms-key-id"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-context"),
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-server-side-encryption-bucket-key-enabled"),
};
const size_t g_s3_create_session_allowed_headers_count = AWS_ARRAY_SIZE(g_s3_create_session_allowed_headers);
static const struct aws_byte_cursor s_x_amz_meta_prefix = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-meta-");
static const struct aws_byte_cursor s_checksum_type_header =
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-checksum-type");
static const struct aws_byte_cursor s_checksum_type_full_object = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("full_object");
const size_t g_s3_abort_multipart_upload_excluded_headers_count =
AWS_ARRAY_SIZE(g_s3_abort_multipart_upload_excluded_headers);
static void s_s3_message_util_add_range_header(
uint64_t part_range_start,
uint64_t part_range_end,
struct aws_http_message *out_message);
/* Create a new get object request from an existing get object request. Currently just adds an optional ranged header.
*/
struct aws_http_message *aws_s3_ranged_get_object_message_new(
struct aws_allocator *allocator,
struct aws_http_message *base_message,
uint64_t range_start,
uint64_t range_end) {
AWS_PRECONDITION(allocator);
AWS_PRECONDITION(base_message);
struct aws_http_message *message =
aws_s3_message_util_copy_http_message_no_body_all_headers(allocator, base_message);
if (message == NULL) {
return NULL;
}
s_s3_message_util_add_range_header(range_start, range_end, message);
return message;
}
/* Creates a create-multipart-upload request from a given put object request. */
struct aws_http_message *aws_s3_create_multipart_upload_message_new(
struct aws_allocator *allocator,
struct aws_http_message *base_message,
const struct checksum_config_storage *checksum_config) {
AWS_PRECONDITION(allocator);
/* For multipart upload, some headers should ONLY be in the initial create-multipart request.
* Headers such as:
* - SSE related headers
* - user metadata (prefixed "x-amz-meta-") headers */
struct aws_http_message *message = aws_s3_message_util_copy_http_message_no_body_filter_headers(
allocator,
base_message,
g_s3_create_multipart_upload_excluded_headers,
AWS_ARRAY_SIZE(g_s3_create_multipart_upload_excluded_headers),
false /*exclude_x_amz_meta*/);
if (message == NULL) {
return NULL;
}
if (aws_s3_message_util_set_multipart_request_path(allocator, NULL, 0, true, message)) {
goto error_clean_up;
}
struct aws_http_headers *headers = aws_http_message_get_headers(message);
if (headers == NULL) {
goto error_clean_up;
}
if (aws_http_headers_erase(headers, g_content_md5_header_name)) {
if (aws_last_error_or_unknown() != AWS_ERROR_HTTP_HEADER_NOT_FOUND) {
goto error_clean_up;
}
}
if (checksum_config && (checksum_config->location != AWS_SCL_NONE || checksum_config->has_full_object_checksum)) {
if (checksum_config->checksum_algorithm) {
if (aws_http_headers_set(
headers,
g_checksum_algorithm_header_name,
aws_get_checksum_algorithm_name(checksum_config->checksum_algorithm))) {
goto error_clean_up;
}
}
if (checksum_config->has_full_object_checksum) {
/* Request S3 to store the full object checksum as it's set from user. */
if (aws_http_headers_set(headers, s_checksum_type_header, s_checksum_type_full_object)) {
goto error_clean_up;
}
}
}
struct aws_byte_cursor content_length_cursor = aws_byte_cursor_from_c_str("0");
if (aws_http_headers_set(headers, g_content_length_header_name, content_length_cursor)) {
goto error_clean_up;
}
aws_http_message_set_request_method(message, g_post_method);
aws_http_message_set_body_stream(message, NULL);
return message;
error_clean_up:
aws_http_message_release(message);
return NULL;
}
/* Create a new put object request from an existing put object request. Currently just optionally adds part information
* for a multipart upload. */
struct aws_http_message *aws_s3_upload_part_message_new(
struct aws_allocator *allocator,
struct aws_http_message *base_message,
struct aws_byte_buf *buffer,
uint32_t part_number,
const struct aws_string *upload_id,
bool should_compute_content_md5,
const struct checksum_config_storage *checksum_config,
struct aws_byte_buf *encoded_checksum_output) {
AWS_PRECONDITION(allocator);
AWS_PRECONDITION(base_message);
AWS_PRECONDITION(part_number > 0);
AWS_PRECONDITION(buffer);
struct aws_http_message *message = aws_s3_message_util_copy_http_message_no_body_filter_headers(
allocator,
base_message,
g_s3_upload_part_excluded_headers,
AWS_ARRAY_SIZE(g_s3_upload_part_excluded_headers),
true /*exclude_x_amz_meta*/);
if (message == NULL) {
return NULL;
}
if (aws_s3_message_util_set_multipart_request_path(allocator, upload_id, part_number, false, message)) {
goto error_clean_up;
}
if (aws_s3_message_util_assign_body(allocator, buffer, message, checksum_config, encoded_checksum_output) == NULL) {
goto error_clean_up;
}
if (should_compute_content_md5) {
if (!checksum_config || checksum_config->location == AWS_SCL_NONE) {
/* MD5 will be skipped if flexible checksum used */
if (aws_s3_message_util_add_content_md5_header(allocator, buffer, message)) {
goto error_clean_up;
}
}
}
return message;
error_clean_up:
aws_http_message_release(message);
return NULL;
}
struct aws_http_message *aws_s3_upload_part_copy_message_new(
struct aws_allocator *allocator,
struct aws_http_message *base_message,
struct aws_byte_buf *buffer,
uint32_t part_number,
uint64_t range_start,
uint64_t range_end,
const struct aws_string *upload_id,
bool should_compute_content_md5) {
AWS_PRECONDITION(allocator);
AWS_PRECONDITION(base_message);
AWS_PRECONDITION(part_number > 0);
struct aws_http_message *message = aws_s3_message_util_copy_http_message_no_body_filter_headers(
allocator,
base_message,
g_s3_upload_part_excluded_headers,
AWS_ARRAY_SIZE(g_s3_upload_part_excluded_headers),
true /*exclude_x_amz_meta*/);
if (message == NULL) {
goto error_clean_up;
}
if (aws_s3_message_util_set_multipart_request_path(allocator, upload_id, part_number, false, message)) {
goto error_clean_up;
}
if (buffer != NULL) {
/* part copy does not have a ChecksumAlgorithm member, it will use the same algorithm as the create
* multipart upload request specifies */
if (aws_s3_message_util_assign_body(
allocator, buffer, message, NULL /* checksum_config */, NULL /* out_checksum */) == NULL) {
goto error_clean_up;
}
if (should_compute_content_md5) {
if (aws_s3_message_util_add_content_md5_header(allocator, buffer, message)) {
goto error_clean_up;
}
}
}
char source_range[1024];
snprintf(source_range, sizeof(source_range), "bytes=%" PRIu64 "-%" PRIu64, range_start, range_end);
struct aws_http_header source_range_header = {
.name = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source-range"),
.value = aws_byte_cursor_from_c_str(source_range),
};
struct aws_http_headers *headers = aws_http_message_get_headers(message);
aws_http_headers_add_header(headers, &source_range_header);
return message;
error_clean_up:
if (message != NULL) {
aws_http_message_release(message);
message = NULL;
}
return NULL;
}
static const struct aws_byte_cursor s_slash_char = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("/");
/**
* For the CopyObject operation, create the initial HEAD message to retrieve the size of the copy source.
*/
struct aws_http_message *aws_s3_get_source_object_size_message_new(
struct aws_allocator *allocator,
struct aws_http_message *base_message,
struct aws_uri *source_uri) {
struct aws_http_message *message = aws_http_message_new_request(allocator);
struct aws_byte_buf head_object_host_header;
AWS_ZERO_STRUCT(head_object_host_header);
if (message == NULL) {
goto error_cleanup;
}
if (aws_http_message_set_request_method(message, g_head_method)) {
goto error_cleanup;
}
if (source_uri != NULL && source_uri->self_size > 0) {
/* Parse source host header and path from the provided URI */
struct aws_byte_cursor host = *aws_uri_host_name(source_uri);
struct aws_byte_cursor path = *aws_uri_path(source_uri);
if (host.len == 0 || path.len == 0) {
aws_raise_error(AWS_ERROR_INVALID_ARGUMENT);
goto error_cleanup;
}
struct aws_http_header host_header = {
.name = g_host_header_name,
.value = host,
};
if (aws_http_message_add_header(message, host_header)) {
goto error_cleanup;
}
if (aws_http_message_set_request_path(message, path)) {
goto error_cleanup;
}
return message;
}
/* Parse the source host header and path from the x-amz-copy-source header and the destination URI */
AWS_PRECONDITION(allocator);
/* Find the x-amz-copy-source header, to extract source bucket/key information. */
struct aws_http_headers *headers = aws_http_message_get_headers(base_message);
if (!headers) {
AWS_LOGF_ERROR(AWS_LS_S3_GENERAL, "CopyRequest is missing headers");
goto error_cleanup;
}
struct aws_byte_cursor source_header;
const struct aws_byte_cursor copy_source_header = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("x-amz-copy-source");
if (aws_http_headers_get(headers, copy_source_header, &source_header) != AWS_OP_SUCCESS) {
AWS_LOGF_ERROR(AWS_LS_S3_GENERAL, "CopyRequest is missing the x-amz-copy-source header");
goto error_cleanup;
}
struct aws_byte_cursor host;
if (aws_http_headers_get(headers, g_host_header_name, &host) != AWS_OP_SUCCESS) {
AWS_LOGF_ERROR(AWS_LS_S3_GENERAL, "CopyRequest is missing the Host header");
goto error_cleanup;
}
struct aws_byte_cursor request_path = source_header;
/* Skip optional leading slash. */
if (aws_byte_cursor_starts_with(&request_path, &s_slash_char)) {
aws_byte_cursor_advance(&request_path, 1);
}
/* From this point forward, the format is {bucket}/{key} - split
components.*/
struct aws_byte_cursor source_bucket = {0};
if (aws_byte_cursor_next_split(&request_path, '/', &source_bucket)) {
aws_byte_cursor_advance(&request_path, source_bucket.len);
}
if (source_bucket.len == 0 || request_path.len == 0) {
AWS_LOGF_ERROR(
AWS_LS_S3_GENERAL,
"CopyRequest x-amz-copy-source header does not follow expected bucket/key format: " PRInSTR,
AWS_BYTE_CURSOR_PRI(source_header));
goto error_cleanup;
}
if (aws_byte_buf_init_copy_from_cursor(&head_object_host_header, allocator, source_bucket)) {
goto error_cleanup;
}
/* Reuse the domain name from the original Host header for the HEAD request.
* TODO: following code works by replacing bucket name in the host with the
* source bucket name. this only works for virtual host endpoints and has a
* slew of other issues, like not supporting source in a different region.
* This covers common case, but we need to rethink how we can support all
* cases in general.
*/
struct aws_byte_cursor domain_name;
const struct aws_byte_cursor dot = aws_byte_cursor_from_c_str(".");
if (aws_byte_cursor_find_exact(&host, &dot, &domain_name)) {
AWS_LOGF_ERROR(AWS_LS_S3_GENERAL, "CopyRequest Host header not in FQDN format");
goto error_cleanup;
}
if (aws_byte_buf_append_dynamic(&head_object_host_header, &domain_name)) {
goto error_cleanup;
}
struct aws_http_header host_header = {
.name = g_host_header_name,
.value = aws_byte_cursor_from_buf(&head_object_host_header),
};
if (aws_http_message_add_header(message, host_header)) {
goto error_cleanup;
}
if (aws_http_message_set_request_path(message, request_path)) {
goto error_cleanup;
}
aws_byte_buf_clean_up(&head_object_host_header);
return message;
error_cleanup:
aws_byte_buf_clean_up(&head_object_host_header);
aws_http_message_release(message);
return NULL;
}
static const struct aws_byte_cursor s_complete_payload_begin = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<CompleteMultipartUpload xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\n");
static const struct aws_byte_cursor s_complete_payload_end =
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("</CompleteMultipartUpload>");
static const struct aws_byte_cursor s_part_section_string_0 = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL(" <Part>\n"
" <ETag>");
static const struct aws_byte_cursor s_part_section_string_1 =
AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("</ETag>\n"
" <PartNumber>");
static const struct aws_byte_cursor s_close_part_number_tag = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("</PartNumber>\n");
static const struct aws_byte_cursor s_close_part_tag = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL(" </Part>\n");
static const struct aws_byte_cursor s_open_start_bracket = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL(" <");
static const struct aws_byte_cursor s_open_end_bracket = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL("</");
static const struct aws_byte_cursor s_close_bracket = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL(">");
static const struct aws_byte_cursor s_close_bracket_new_line = AWS_BYTE_CUR_INIT_FROM_STRING_LITERAL(">\n");
/* Create a complete-multipart message, which includes an XML payload of all completed parts. */
struct aws_http_message *aws_s3_complete_multipart_message_new(
struct aws_allocator *allocator,
struct aws_http_message *base_message,
struct aws_byte_buf *body_buffer,
const struct aws_string *upload_id,
const struct aws_array_list *parts,
const struct checksum_config_storage *checksum_config) {
AWS_PRECONDITION(allocator);
AWS_PRECONDITION(base_message);
AWS_PRECONDITION(body_buffer);
AWS_PRECONDITION(upload_id);
AWS_PRECONDITION(parts);
struct aws_byte_cursor mpu_algorithm_checksum_name;
AWS_ZERO_STRUCT(mpu_algorithm_checksum_name);
struct aws_http_message *message = NULL;
bool set_checksums =
checksum_config && (checksum_config->location != AWS_SCL_NONE || checksum_config->has_full_object_checksum);
const struct aws_http_headers *initial_message_headers = aws_http_message_get_headers(base_message);
AWS_ASSERT(initial_message_headers);
if (set_checksums) {
mpu_algorithm_checksum_name =
aws_get_completed_part_name_from_checksum_algorithm(checksum_config->checksum_algorithm);
message = aws_s3_message_util_copy_http_message_no_body_filter_headers(
allocator,
base_message,
g_s3_complete_multipart_upload_with_checksum_excluded_headers,
AWS_ARRAY_SIZE(g_s3_complete_multipart_upload_with_checksum_excluded_headers),
true /*exclude_x_amz_meta*/);
} else {
message = aws_s3_message_util_copy_http_message_no_body_filter_headers(
allocator,
base_message,
g_s3_complete_multipart_upload_excluded_headers,
AWS_ARRAY_SIZE(g_s3_complete_multipart_upload_excluded_headers),
true /*exclude_x_amz_meta*/);
}
struct aws_http_headers *headers = NULL;
if (message == NULL) {
goto error_clean_up;
}
if (aws_s3_message_util_set_multipart_request_path(allocator, upload_id, 0, false, message)) {
goto error_clean_up;
}
aws_http_message_set_request_method(message, g_post_method);
headers = aws_http_message_get_headers(message);
if (headers == NULL) {
goto error_clean_up;
}
if (set_checksums && checksum_config->has_full_object_checksum) {
/* Set the full object checksum header. */
AWS_ASSERT(checksum_config->checksum_algorithm != AWS_SCA_NONE);
if (aws_http_headers_set(
headers,
aws_get_http_header_name_from_checksum_algorithm(checksum_config->checksum_algorithm),
aws_byte_cursor_from_buf(&checksum_config->full_object_checksum))) {
goto error_clean_up;
}
/* Request S3 to store the full object checksum as it's set from user. */
if (aws_http_headers_set(headers, s_checksum_type_header, s_checksum_type_full_object)) {
goto error_clean_up;
}
}
struct aws_byte_cursor content_length_cursor;
if (aws_http_headers_get(initial_message_headers, g_content_length_header_name, &content_length_cursor) ==
AWS_OP_SUCCESS) {
/* Set content-length from base message as x-amz-mp-object-size. */
if (aws_http_headers_set(headers, aws_byte_cursor_from_c_str("x-amz-mp-object-size"), content_length_cursor)) {
goto error_clean_up;
}
}
/* Create XML payload with all the etags of finished parts */
{
aws_byte_buf_reset(body_buffer, false);
if (aws_byte_buf_append_dynamic(body_buffer, &s_complete_payload_begin)) {
goto error_clean_up;
}
for (size_t part_index = 0; part_index < aws_array_list_length(parts); ++part_index) {
struct aws_s3_mpu_part_info *part = NULL;
aws_array_list_get_at(parts, &part, part_index);
AWS_FATAL_ASSERT(part != NULL);
if (aws_byte_buf_append_dynamic(body_buffer, &s_part_section_string_0)) {
goto error_clean_up;
}
struct aws_byte_cursor etag_byte_cursor = aws_byte_cursor_from_string(part->etag);
if (aws_byte_buf_append_dynamic(body_buffer, &etag_byte_cursor)) {
goto error_clean_up;
}
if (aws_byte_buf_append_dynamic(body_buffer, &s_part_section_string_1)) {
goto error_clean_up;
}
char part_number_buffer[32] = "";
int part_number = (int)(part_index + 1);
int part_number_num_char = snprintf(part_number_buffer, sizeof(part_number_buffer), "%d", part_number);
struct aws_byte_cursor part_number_byte_cursor =
aws_byte_cursor_from_array(part_number_buffer, part_number_num_char);
if (aws_byte_buf_append_dynamic(body_buffer, &part_number_byte_cursor)) {
goto error_clean_up;
}
if (aws_byte_buf_append_dynamic(body_buffer, &s_close_part_number_tag)) {
goto error_clean_up;
}
if (mpu_algorithm_checksum_name.len) {
struct aws_byte_cursor checksum = aws_byte_cursor_from_buf(&part->checksum_base64);
if (aws_byte_buf_append_dynamic(body_buffer, &s_open_start_bracket)) {
goto error_clean_up;
}
if (aws_byte_buf_append_dynamic(body_buffer, &mpu_algorithm_checksum_name)) {
goto error_clean_up;
}
if (aws_byte_buf_append_dynamic(body_buffer, &s_close_bracket)) {
goto error_clean_up;
}
if (aws_byte_buf_append_dynamic(body_buffer, &checksum)) {
goto error_clean_up;
}
if (aws_byte_buf_append_dynamic(body_buffer, &s_open_end_bracket)) {
goto error_clean_up;
}
if (aws_byte_buf_append_dynamic(body_buffer, &mpu_algorithm_checksum_name)) {
goto error_clean_up;
}
if (aws_byte_buf_append_dynamic(body_buffer, &s_close_bracket_new_line)) {
goto error_clean_up;
}
}
if (aws_byte_buf_append_dynamic(body_buffer, &s_close_part_tag)) {
goto error_clean_up;
}
}
if (aws_byte_buf_append_dynamic(body_buffer, &s_complete_payload_end)) {
goto error_clean_up;
}
AWS_LOGF_TRACE(
AWS_LS_S3_GENERAL, "Payload for Complete MPU is:\n" PRInSTR "\n", AWS_BYTE_BUF_PRI(*body_buffer));
aws_s3_message_util_assign_body(
allocator, body_buffer, message, NULL /* checksum_config */, NULL /* out_checksum */);
}
return message;
error_clean_up:
AWS_LOGF_ERROR(AWS_LS_S3_GENERAL, "Could not create complete multipart message");
if (message != NULL) {
aws_http_message_release(message);
message = NULL;
}
return NULL;
}
struct aws_http_message *aws_s3_abort_multipart_upload_message_new(
struct aws_allocator *allocator,
struct aws_http_message *base_message,
const struct aws_string *upload_id) {
struct aws_http_message *message = aws_s3_message_util_copy_http_message_no_body_filter_headers(
allocator,
base_message,
g_s3_abort_multipart_upload_excluded_headers,
AWS_ARRAY_SIZE(g_s3_abort_multipart_upload_excluded_headers),
true /*exclude_x_amz_meta*/);
if (aws_s3_message_util_set_multipart_request_path(allocator, upload_id, 0, false, message)) {
goto error_clean_up;
}
aws_http_message_set_request_method(message, g_delete_method);
return message;
error_clean_up:
AWS_LOGF_ERROR(AWS_LS_S3_GENERAL, "Could not create abort multipart upload message");
if (message != NULL) {
aws_http_message_release(message);
message = NULL;
}
return NULL;
}
/**
* Calculate the in memory checksum based on the checksum config. Initialize and set the out_checksum to the encoded
* checksum result
*/
static int s_calculate_in_memory_checksum_helper(
struct aws_allocator *allocator,
struct aws_byte_cursor data,
const struct checksum_config_storage *checksum_config,
struct aws_byte_buf *out_checksum) {
AWS_ASSERT(checksum_config->checksum_algorithm != AWS_SCA_NONE);
AWS_ASSERT(out_checksum != NULL);
AWS_ZERO_STRUCT(*out_checksum);
int ret_code = AWS_OP_ERR;
size_t digest_size = aws_get_digest_size_from_checksum_algorithm(checksum_config->checksum_algorithm);
size_t encoded_checksum_len = 0;
if (aws_base64_compute_encoded_len(digest_size, &encoded_checksum_len)) {
return AWS_OP_ERR;
}
aws_byte_buf_init(out_checksum, allocator, encoded_checksum_len);
struct aws_byte_buf raw_checksum;
aws_byte_buf_init(&raw_checksum, allocator, digest_size);
if (aws_checksum_compute(allocator, checksum_config->checksum_algorithm, &data, &raw_checksum)) {
goto done;
}
struct aws_byte_cursor raw_checksum_cursor = aws_byte_cursor_from_buf(&raw_checksum);
if (aws_base64_encode(&raw_checksum_cursor, out_checksum)) {
goto done;
}
ret_code = AWS_OP_SUCCESS;
done:
if (ret_code) {
aws_byte_buf_clean_up(out_checksum);
}
aws_byte_buf_clean_up(&raw_checksum);
return ret_code;
}
/**
* Calculate the in memory checksum based on the checksum config.
* If out_checksum set, initialize and set it to the encoded checksum result.
* Set the corresponding header in out_message to the encoded checksum result.
*/
static int s_calculate_and_add_checksum_to_header_helper(
struct aws_allocator *allocator,
struct aws_byte_cursor data,
const struct checksum_config_storage *checksum_config,
struct aws_http_message *out_message,
struct aws_byte_buf *out_checksum) {
AWS_ASSERT(checksum_config->checksum_algorithm != AWS_SCA_NONE);
AWS_ASSERT(out_message != NULL);
int ret_code = AWS_OP_ERR;
struct aws_byte_buf local_encoded_checksum_buf;
struct aws_byte_buf *local_encoded_checksum;
if (out_checksum == NULL) {
local_encoded_checksum = &local_encoded_checksum_buf;
} else {
local_encoded_checksum = out_checksum;
}
AWS_ZERO_STRUCT(*local_encoded_checksum);
if (s_calculate_in_memory_checksum_helper(allocator, data, checksum_config, local_encoded_checksum)) {
goto done;
}
/* Add the encoded checksum to header. */
const struct aws_byte_cursor header_name =
aws_get_http_header_name_from_checksum_algorithm(checksum_config->checksum_algorithm);
struct aws_byte_cursor encoded_checksum_val = aws_byte_cursor_from_buf(local_encoded_checksum);
struct aws_http_headers *headers = aws_http_message_get_headers(out_message);
if (aws_http_headers_set(headers, header_name, encoded_checksum_val)) {
goto done;
}
ret_code = AWS_OP_SUCCESS;
done:
if (ret_code || out_checksum == NULL) {
/* In case of error happen or out_checksum is not set, clean up the encoded checksum. Otherwise, the caller will
* own the encoded checksum. */
aws_byte_buf_clean_up(local_encoded_checksum);
}
return ret_code;
}
/* Assign a buffer to an HTTP message, creating a stream and setting the content-length header */
struct aws_input_stream *aws_s3_message_util_assign_body(
struct aws_allocator *allocator,
struct aws_byte_buf *byte_buf,
struct aws_http_message *out_message,
const struct checksum_config_storage *checksum_config,
struct aws_byte_buf *out_checksum) {
AWS_PRECONDITION(allocator);
AWS_PRECONDITION(out_message);
AWS_PRECONDITION(byte_buf);
struct aws_byte_cursor buffer_byte_cursor = aws_byte_cursor_from_buf(byte_buf);
struct aws_http_headers *headers = aws_http_message_get_headers(out_message);
if (headers == NULL) {
return NULL;
}
struct aws_input_stream *input_stream = aws_input_stream_new_from_cursor(allocator, &buffer_byte_cursor);
struct aws_byte_buf content_encoding_header_buf;
AWS_ZERO_STRUCT(content_encoding_header_buf);
if (input_stream == NULL) {
goto error_clean_up;
}
if (checksum_config) {
if (checksum_config->location == AWS_SCL_TRAILER) {
/* aws-chunked encode the payload and add related headers */
/* set Content-Encoding header. If the header already exists, append the exisiting value to aws-chunked
* We already made sure that the existing value is not 'aws_chunked' in 'aws_s3_client_make_meta_request'
* function.
*/
struct aws_byte_cursor content_encoding_header_cursor;
bool has_content_encoding_header =
aws_http_headers_get(headers, g_content_encoding_header_name, &content_encoding_header_cursor) ==
AWS_OP_SUCCESS;
size_t content_encoding_header_buf_size =
has_content_encoding_header
? g_content_encoding_header_aws_chunked.len + content_encoding_header_cursor.len + 1
: g_content_encoding_header_aws_chunked.len;
aws_byte_buf_init(&content_encoding_header_buf, allocator, content_encoding_header_buf_size);
if (has_content_encoding_header) {
aws_byte_buf_append_dynamic(&content_encoding_header_buf, &content_encoding_header_cursor);
aws_byte_buf_append_byte_dynamic(&content_encoding_header_buf, ',');
}
aws_byte_buf_append_dynamic(&content_encoding_header_buf, &g_content_encoding_header_aws_chunked);
if (aws_http_headers_set(
headers, g_content_encoding_header_name, aws_byte_cursor_from_buf(&content_encoding_header_buf))) {
goto error_clean_up;
}
/* set x-amz-trailer header */
if (aws_http_headers_set(
headers,
g_trailer_header_name,
aws_get_http_header_name_from_checksum_algorithm(checksum_config->checksum_algorithm))) {
goto error_clean_up;
}
/* set x-amz-decoded-content-length header */
char decoded_content_length_buffer[64] = "";
snprintf(
decoded_content_length_buffer,
sizeof(decoded_content_length_buffer),
"%" PRIu64,
(uint64_t)buffer_byte_cursor.len);
struct aws_byte_cursor decode_content_length_cursor =
aws_byte_cursor_from_array(decoded_content_length_buffer, strlen(decoded_content_length_buffer));
if (aws_http_headers_set(headers, g_decoded_content_length_header_name, decode_content_length_cursor)) {
goto error_clean_up;
}
/* set input stream to chunk stream */
struct aws_input_stream *chunk_stream =
aws_chunk_stream_new(allocator, input_stream, checksum_config->checksum_algorithm, out_checksum);
if (!chunk_stream) {
goto error_clean_up;
}
aws_input_stream_release(input_stream);
input_stream = chunk_stream;