| 1 | /* $Id: RTCRestClientApiBaseOci.cpp 74149 2018-09-07 18:51:37Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - C++ REST, RTCRestClientApiBase implementation, OCI specific bits.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2018 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #define LOG_GROUP RTLOGGROUP_REST
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| 32 | #include <iprt/cpp/restclient.h>
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| 33 |
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| 34 | #include <iprt/assert.h>
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| 35 | #include <iprt/base64.h>
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| 36 | #include <iprt/err.h>
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| 37 | #include <iprt/http.h>
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| 38 | #include <iprt/log.h>
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| 39 | #include <iprt/sha.h>
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| 40 | #include <iprt/time.h>
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| 41 | #include <iprt/uri.h>
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| 42 |
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| 43 |
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| 44 |
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| 45 | /**
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| 46 | * Ensures that we've got a 'Content-Length' header.
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| 47 | *
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| 48 | * @returns IPRT status code.
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| 49 | * @param hHttp The HTTP client handle.
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| 50 | * @param pvContent
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| 51 | */
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| 52 | static int ociSignRequestEnsureDateOrXDate(RTHTTP hHttp)
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| 53 | {
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| 54 | if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("x-date")))
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| 55 | return VINF_SUCCESS;
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| 56 | if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("date")))
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| 57 | return VINF_SUCCESS;
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| 58 |
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| 59 | RTTIMESPEC NowSpec;
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| 60 | RTTIME Now;
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| 61 | char szDate[RTTIME_RFC2822_LEN];
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| 62 | ssize_t cch = RTTimeToRfc2822(RTTimeExplode(&Now, RTTimeNow(&NowSpec)), szDate, sizeof(szDate), RTTIME_RFC2822_F_GMT);
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| 63 | AssertRCReturn((int)cch, (int)cch);
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| 64 |
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| 65 | return RTHttpAddHeader(hHttp, "x-date", szDate, cch, RTHTTPADDHDR_F_BACK);
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| 66 | }
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| 67 |
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| 68 |
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| 69 | /**
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| 70 | * Ensures that we've got a 'x-content-sha256' header.
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| 71 | *
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| 72 | * @returns IPRT status code.
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| 73 | * @param hHttp The HTTP client handle.
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| 74 | * @param pvContent
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| 75 | */
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| 76 | static int ociSignRequestEnsureXContentSha256(RTHTTP hHttp, void const *pvContent, size_t cbContent)
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| 77 | {
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| 78 | if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("x-content-sha256")))
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| 79 | return VINF_SUCCESS;
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| 80 |
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| 81 | #ifdef RT_STRICT
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| 82 | const char *pszContentLength = RTHttpGetHeader(hHttp, RT_STR_TUPLE("Content-Length"));
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| 83 | Assert(pszContentLength);
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| 84 | AssertMsg(!pszContentLength || RTStrToUInt64(pszContentLength) == cbContent, ("'%s' vs %RU64\n", pszContentLength, cbContent));
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| 85 | #endif
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| 86 |
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| 87 | uint8_t abHash[RTSHA256_HASH_SIZE];
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| 88 | RTSha256(pvContent, cbContent, abHash);
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| 89 |
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| 90 | char szBase64[RTSHA256_DIGEST_LEN + 1]; /* (base64 should be shorter) */
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| 91 | int rc = RTBase64EncodeEx(abHash, sizeof(abHash), RTBASE64_FLAGS_NO_LINE_BREAKS, szBase64, sizeof(szBase64), NULL);
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| 92 | AssertRCReturn(rc, rc);
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| 93 |
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| 94 | return RTHttpAddHeader(hHttp, "x-content-sha256", szBase64, RTSTR_MAX, RTHTTPADDHDR_F_BACK);
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| 95 | }
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| 96 |
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| 97 |
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| 98 | /**
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| 99 | * Ensures that we've got a 'Content-Length' header.
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| 100 | *
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| 101 | * @returns IPRT status code.
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| 102 | * @param hHttp The HTTP client handle.
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| 103 | * @param cbContent The content length.
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| 104 | */
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| 105 | static int ociSignRequestEnsureContentLength(RTHTTP hHttp, uint64_t cbContent)
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| 106 | {
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| 107 | if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("Content-Length")))
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| 108 | return VINF_SUCCESS;
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| 109 | char szValue[64];
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| 110 | ssize_t cchValue = RTStrFormatU64(szValue, sizeof(szValue), cbContent, 10, 0, 0, 0);
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| 111 | AssertRCReturn((int)cchValue, (int)cchValue);
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| 112 | return RTHttpAddHeader(hHttp, "Content-Length", szValue, cchValue, RTHTTPADDHDR_F_BACK);
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| 113 | }
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| 114 |
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| 115 |
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| 116 | /**
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| 117 | * Ensures that we've got a host header.
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| 118 | *
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| 119 | * @returns IPRT status code.
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| 120 | * @param hHttp The HTTP client handle.
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| 121 | * @param pszUrl The URL.
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| 122 | */
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| 123 | static int ociSignRequestEnsureHost(RTHTTP hHttp, const char *pszUrl)
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| 124 | {
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| 125 | if (RTHttpGetHeader(hHttp, RT_STR_TUPLE("host")))
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| 126 | return VINF_SUCCESS;
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| 127 |
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| 128 | RTURIPARSED ParsedUrl;
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| 129 | int rc = RTUriParse(pszUrl, &ParsedUrl);
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| 130 | AssertRCReturn(rc, rc);
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| 131 |
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| 132 | return RTHttpAddHeader(hHttp, "host", &pszUrl[ParsedUrl.offAuthorityHost], ParsedUrl.cchAuthorityHost, RTHTTPADDHDR_F_BACK);
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| 133 | }
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| 134 |
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| 135 |
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| 136 | int RTCRestClientApiBase::ociSignRequest(RTHTTP a_hHttp, RTCString const &a_rStrFullUrl, RTHTTPMETHOD a_enmHttpMethod,
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| 137 | RTCString const &a_rStrXmitBody, uint32_t a_fFlags,
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| 138 | RTCRKEY a_hKey, RTCString const &a_rStrKeyId)
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| 139 | {
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| 140 | /*
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| 141 | * First make sure required headers are present, adding them as needed.
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| 142 | */
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| 143 | int rc = ociSignRequestEnsureHost(a_hHttp, a_rStrFullUrl.c_str());
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| 144 | if (RT_SUCCESS(rc))
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| 145 | {
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| 146 | if ( a_rStrXmitBody.isNotEmpty()
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| 147 | || a_enmHttpMethod == RTHTTPMETHOD_POST
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| 148 | || a_enmHttpMethod == RTHTTPMETHOD_PUT)
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| 149 | rc = ociSignRequestEnsureContentLength(a_hHttp, a_rStrXmitBody.length());
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| 150 | if ( RT_SUCCESS(rc)
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| 151 | && a_rStrXmitBody.isNotEmpty())
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| 152 | rc = ociSignRequestEnsureXContentSha256(a_hHttp, a_rStrXmitBody.c_str(), a_rStrXmitBody.length());
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| 153 | if (RT_SUCCESS(rc))
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| 154 | rc = ociSignRequestEnsureDateOrXDate(a_hHttp);
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| 155 | if (RT_SUCCESS(rc))
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| 156 | {
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| 157 | /*
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| 158 | * Do the signing.
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| 159 | */
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| 160 | rc = RTHttpSignHeaders(a_hHttp, a_enmHttpMethod, a_rStrFullUrl.c_str(), a_hKey, a_rStrKeyId.c_str(), 0 /*fFlags*/);
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| 161 | }
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| 162 | }
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| 163 | RT_NOREF_PV(a_fFlags); /* We don't need to use the kDoCall_OciReqSignExcludeBody flag it turns out. */
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| 164 | return rc;
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| 165 | }
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| 166 |
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