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/* $Id$ */
/** @file
* IPRT - C++ REST, RTCRestClientApiBase implementation, OCI specific bits.
*/
/*
* Copyright (C) 2018-2022 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP RTLOGGROUP_REST
#include <iprt/cpp/restclient.h>
#include <iprt/assert.h>
#include <iprt/base64.h>
#include <iprt/errcore.h>
#include <iprt/http.h>
#include <iprt/log.h>
#include <iprt/sha.h>
#include <iprt/time.h>
#include <iprt/uri.h>
/**
* Ensures that we've got an 'X-Date' or 'Date' header.
*
* @returns IPRT status code.
* @param hHttp The HTTP client handle.
* @param pvContent
*/
static int ociSignRequestEnsureDateOrXDate(RTHTTP hHttp) RT_NOEXCEPT
{
if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("x-date")))
return VINF_SUCCESS;
if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("date")))
return VINF_SUCCESS;
RTTIMESPEC NowSpec;
RTTIME Now;
char szDate[RTTIME_RFC2822_LEN];
ssize_t cch = RTTimeToRfc2822(RTTimeExplode(&Now, RTTimeNow(&NowSpec)), szDate, sizeof(szDate), RTTIME_RFC2822_F_GMT);
AssertRCReturn((int)cch, (int)cch);
return RTHttpAddHeader(hHttp, "x-date", szDate, cch, RTHTTPADDHDR_F_BACK);
}
/**
* Ensures that we've got a 'x-content-sha256' header.
*
* @returns IPRT status code.
* @param hHttp The HTTP client handle.
* @param pvContent
*/
static int ociSignRequestEnsureXContentSha256(RTHTTP hHttp, void const *pvContent, size_t cbContent) RT_NOEXCEPT
{
if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("x-content-sha256")))
return VINF_SUCCESS;
#ifdef RT_STRICT
if (cbContent != 0)
{
const char *pszContentLength = RTHttpGetHeader(hHttp, RT_STR_TUPLE("Content-Length"));
Assert(pszContentLength);
AssertMsg(!pszContentLength || RTStrToUInt64(pszContentLength) == cbContent,
("'%s' vs %RU64\n", pszContentLength, cbContent));
}
#endif
uint8_t abHash[RTSHA256_HASH_SIZE];
RTSha256(pvContent, cbContent, abHash);
char szBase64[RTSHA256_DIGEST_LEN + 1]; /* (base64 should be shorter) */
int rc = RTBase64EncodeEx(abHash, sizeof(abHash), RTBASE64_FLAGS_NO_LINE_BREAKS, szBase64, sizeof(szBase64), NULL);
AssertRCReturn(rc, rc);
return RTHttpAddHeader(hHttp, "x-content-sha256", szBase64, RTSTR_MAX, RTHTTPADDHDR_F_BACK);
}
/**
* Ensures that we've got a 'Content-Length' header.
*
* @returns IPRT status code.
* @param hHttp The HTTP client handle.
* @param cbContent The content length.
*/
static int ociSignRequestEnsureContentLength(RTHTTP hHttp, uint64_t cbContent) RT_NOEXCEPT
{
if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("Content-Length")))
return VINF_SUCCESS;
char szValue[64];
ssize_t cchValue = RTStrFormatU64(szValue, sizeof(szValue), cbContent, 10, 0, 0, 0);
AssertRCReturn((int)cchValue, (int)cchValue);
return RTHttpAddHeader(hHttp, "Content-Length", szValue, cchValue, RTHTTPADDHDR_F_BACK);
}
/**
* Ensures that we've got a host header.
*
* @returns IPRT status code.
* @param hHttp The HTTP client handle.
* @param pszUrl The URL.
*/
static int ociSignRequestEnsureHost(RTHTTP hHttp, const char *pszUrl) RT_NOEXCEPT
{
if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("host")))
return VINF_SUCCESS;
RTURIPARSED ParsedUrl;
int rc = RTUriParse(pszUrl, &ParsedUrl);
AssertRCReturn(rc, rc);
return RTHttpAddHeader(hHttp, "host", &pszUrl[ParsedUrl.offAuthorityHost], ParsedUrl.cchAuthorityHost, RTHTTPADDHDR_F_BACK);
}
int RTCRestClientApiBase::ociSignRequest(RTHTTP a_hHttp, RTCString const &a_rStrFullUrl, RTHTTPMETHOD a_enmHttpMethod,
RTCString const &a_rStrXmitBody, uint32_t a_fFlags,
RTCRKEY a_hKey, RTCString const &a_rStrKeyId) RT_NOEXCEPT
{
/*
* First make sure required headers are present, adding them as needed.
*/
int rc = ociSignRequestEnsureHost(a_hHttp, a_rStrFullUrl.c_str());
if (RT_SUCCESS(rc))
{
bool fHasBody
= a_rStrXmitBody.isNotEmpty()
/* but sometimes we need an empty body signed too */
|| (a_fFlags & kDoCall_RequireBody)
|| a_enmHttpMethod == RTHTTPMETHOD_POST
|| a_enmHttpMethod == RTHTTPMETHOD_PUT;
if (fHasBody)
{
rc = ociSignRequestEnsureContentLength(a_hHttp, a_rStrXmitBody.length());
if (RT_SUCCESS(rc))
rc = ociSignRequestEnsureXContentSha256(a_hHttp, a_rStrXmitBody.c_str(), a_rStrXmitBody.length());
}
if (RT_SUCCESS(rc))
rc = ociSignRequestEnsureDateOrXDate(a_hHttp);
if (RT_SUCCESS(rc))
{
/*
* Do the signing.
*/
rc = RTHttpSignHeaders(a_hHttp, a_enmHttpMethod, a_rStrFullUrl.c_str(), a_hKey, a_rStrKeyId.c_str(), 0 /*fFlags*/);
}
}
return rc;
}
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