| 1 | /* $Id: http.h 58199 2015-10-12 15:27:00Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Simple HTTP/HTTPS Client API.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2012-2015 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.alldomusa.eu.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 | #ifndef ___iprt_http_h
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| 28 | #define ___iprt_http_h
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| 29 |
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| 30 | #include <iprt/types.h>
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| 31 |
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| 32 | RT_C_DECLS_BEGIN
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| 33 |
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| 34 | /** @defgroup grp_rt_http RTHttp - Simple HTTP/HTTPS Client API
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| 35 | * @ingroup grp_rt
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| 36 | * @{
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| 37 | */
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| 38 |
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| 39 | /** @todo the following three definitions may move the iprt/types.h later. */
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| 40 | /** HTTP/HTTPS client handle. */
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| 41 | typedef R3PTRTYPE(struct RTHTTPINTERNAL *) RTHTTP;
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| 42 | /** Pointer to a HTTP/HTTPS client handle. */
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| 43 | typedef RTHTTP *PRTHTTP;
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| 44 | /** Nil HTTP/HTTPS client handle. */
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| 45 | #define NIL_RTHTTP ((RTHTTP)0)
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| 46 |
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| 47 |
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| 48 | /**
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| 49 | * Creates a HTTP client instance.
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| 50 | *
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| 51 | * @returns iprt status code.
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| 52 | *
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| 53 | * @param phHttp Where to store the HTTP handle.
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| 54 | */
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| 55 | RTR3DECL(int) RTHttpCreate(PRTHTTP phHttp);
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| 56 |
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| 57 | /**
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| 58 | * Destroys a HTTP client instance.
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| 59 | *
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| 60 | * @param hHttp Handle to the HTTP interface.
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| 61 | */
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| 62 | RTR3DECL(void) RTHttpDestroy(RTHTTP hHttp);
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| 63 |
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| 64 |
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| 65 | /**
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| 66 | * Retrieve the redir location for 301 responses.
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| 67 | *
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| 68 | * @param hHttp Handle to the HTTP interface.
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| 69 | * @param ppszRedirLocation Where to store the string. To be freed with
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| 70 | * RTStrFree().
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| 71 | */
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| 72 | RTR3DECL(int) RTHttpGetRedirLocation(RTHTTP hHttp, char **ppszRedirLocation);
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| 73 |
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| 74 | /**
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| 75 | * Perform a simple blocking HTTP GET request.
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| 76 | *
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| 77 | * This is a just a convenient wrapper around RTHttpGetBinary that returns a
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| 78 | * different type and sheds a parameter.
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| 79 | *
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| 80 | * @returns iprt status code.
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| 81 | *
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| 82 | * @param hHttp The HTTP client instance.
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| 83 | * @param pszUrl URL.
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| 84 | * @param ppszNotUtf8 Where to return the pointer to the HTTP response.
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| 85 | * The string is of course zero terminated. Use
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| 86 | * RTHttpFreeReponseText to free.
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| 87 | *
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| 88 | * @remarks BIG FAT WARNING!
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| 89 | *
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| 90 | * This function does not guarantee the that returned string is valid UTF-8 or
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| 91 | * any other kind of text encoding!
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| 92 | *
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| 93 | * The caller must determine and validate the string encoding _before_
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| 94 | * passing it along to functions that expect UTF-8!
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| 95 | *
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| 96 | * Also, this function does not guarantee that the returned string
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| 97 | * doesn't have embedded zeros and provides the caller no way of
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| 98 | * finding out! If you are worried about the response from the HTTPD
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| 99 | * containing embedded zero's, use RTHttpGetBinary instead.
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| 100 | */
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| 101 | RTR3DECL(int) RTHttpGetText(RTHTTP hHttp, const char *pszUrl, char **ppszNotUtf8);
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| 102 |
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| 103 | /**
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| 104 | * Perform a simple blocking HTTP HEAD request.
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| 105 | *
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| 106 | * This is a just a convenient wrapper around RTHttpGetBinary that returns a
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| 107 | * different type and sheds a parameter.
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| 108 | *
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| 109 | * @returns iprt status code.
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| 110 | *
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| 111 | * @param hHttp The HTTP client instance.
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| 112 | * @param pszUrl URL.
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| 113 | * @param ppszNotUtf8 Where to return the pointer to the HTTP response.
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| 114 | * The string is of course zero terminated. Use
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| 115 | * RTHttpFreeReponseText to free.
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| 116 | *
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| 117 | * @remarks BIG FAT WARNING!
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| 118 | *
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| 119 | * This function does not guarantee the that returned string is valid UTF-8 or
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| 120 | * any other kind of text encoding!
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| 121 | *
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| 122 | * The caller must determine and validate the string encoding _before_
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| 123 | * passing it along to functions that expect UTF-8!
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| 124 | *
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| 125 | * Also, this function does not guarantee that the returned string
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| 126 | * doesn't have embedded zeros and provides the caller no way of
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| 127 | * finding out! If you are worried about the response from the HTTPD
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| 128 | * containing embedded zero's, use RTHttpGetHeaderBinary instead.
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| 129 | */
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| 130 | RTR3DECL(int) RTHttpGetHeaderText(RTHTTP hHttp, const char *pszUrl, char **ppszNotUtf8);
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| 131 |
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| 132 | /**
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| 133 | * Frees memory returned by RTHttpGetText.
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| 134 | *
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| 135 | * @param pszNotUtf8 What RTHttpGetText returned.
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| 136 | */
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| 137 | RTR3DECL(void) RTHttpFreeResponseText(char *pszNotUtf8);
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| 138 |
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| 139 | /**
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| 140 | * Perform a simple blocking HTTP GET request.
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| 141 | *
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| 142 | * @returns iprt status code.
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| 143 | *
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| 144 | * @param hHttp The HTTP client instance.
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| 145 | * @param pszUrl The URL.
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| 146 | * @param ppvResponse Where to store the HTTP response data. Use
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| 147 | * RTHttpFreeResponse to free.
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| 148 | * @param pcb Size of the returned buffer.
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| 149 | */
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| 150 | RTR3DECL(int) RTHttpGetBinary(RTHTTP hHttp, const char *pszUrl, void **ppvResponse, size_t *pcb);
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| 151 |
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| 152 | /**
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| 153 | * Perform a simple blocking HTTP HEAD request.
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| 154 | *
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| 155 | * @returns iprt status code.
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| 156 | *
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| 157 | * @param hHttp The HTTP client instance.
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| 158 | * @param pszUrl The URL.
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| 159 | * @param ppvResponse Where to store the HTTP response data. Use
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| 160 | * RTHttpFreeResponse to free.
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| 161 | * @param pcb Size of the returned buffer.
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| 162 | */
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| 163 | RTR3DECL(int) RTHttpGetHeaderBinary(RTHTTP hHttp, const char *pszUrl, void **ppvResponse, size_t *pcb);
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| 164 |
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| 165 | /**
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| 166 | * Frees memory returned by RTHttpGetBinary.
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| 167 | *
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| 168 | * @param pvResponse What RTHttpGetBinary returned.
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| 169 | */
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| 170 | RTR3DECL(void) RTHttpFreeResponse(void *pvResponse);
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| 171 |
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| 172 | /**
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| 173 | * Perform a simple blocking HTTP request, writing the output to a file.
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| 174 | *
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| 175 | * @returns iprt status code.
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| 176 | *
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| 177 | * @param hHttp The HTTP client instance.
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| 178 | * @param pszUrl The URL.
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| 179 | * @param pszDstFile The destination file name.
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| 180 | */
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| 181 | RTR3DECL(int) RTHttpGetFile(RTHTTP hHttp, const char *pszUrl, const char *pszDstFile);
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| 182 |
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| 183 | /**
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| 184 | * Abort a pending HTTP request. A blocking RTHttpGet() call will return with
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| 185 | * VERR_HTTP_ABORTED. It may take some time (current cURL implementation needs
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| 186 | * up to 1 second) before the request is aborted.
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| 187 | *
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| 188 | * @returns iprt status code.
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| 189 | *
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| 190 | * @param hHttp The HTTP client instance.
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| 191 | */
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| 192 | RTR3DECL(int) RTHttpAbort(RTHTTP hHttp);
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| 193 |
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| 194 | /**
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| 195 | * Tells the HTTP interface to use the system proxy configuration.
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| 196 | *
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| 197 | * @returns iprt status code.
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| 198 | * @param hHttp The HTTP client instance.
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| 199 | */
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| 200 | RTR3DECL(int) RTHttpUseSystemProxySettings(RTHTTP hHttp);
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| 201 |
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| 202 | /**
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| 203 | * Specify proxy settings.
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| 204 | *
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| 205 | * @returns iprt status code.
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| 206 | *
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| 207 | * @param hHttp The HTTP client instance.
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| 208 | * @param pszProxyUrl URL of the proxy server.
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| 209 | * @param uPort port number of the proxy, use 0 for not specifying a port.
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| 210 | * @param pszProxyUser Username, pass NULL for no authentication.
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| 211 | * @param pszProxyPwd Password, pass NULL for no authentication.
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| 212 | *
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| 213 | * @todo This API does not allow specifying the type of proxy server... We're
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| 214 | * currently assuming it's a HTTP proxy.
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| 215 | */
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| 216 | RTR3DECL(int) RTHttpSetProxy(RTHTTP hHttp, const char *pszProxyUrl, uint32_t uPort,
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| 217 | const char *pszProxyUser, const char *pszProxyPwd);
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| 218 |
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| 219 | /**
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| 220 | * Set custom headers.
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| 221 | *
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| 222 | * @returns iprt status code.
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| 223 | *
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| 224 | * @param hHttp The HTTP client instance.
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| 225 | * @param cHeaders Number of custom headers.
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| 226 | * @param papszHeaders Array of headers in form "foo: bar".
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| 227 | */
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| 228 | RTR3DECL(int) RTHttpSetHeaders(RTHTTP hHttp, size_t cHeaders, const char * const *papszHeaders);
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| 229 |
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| 230 | /**
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| 231 | * Tells the HTTP client instance to gather system CA certificates into a
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| 232 | * temporary file and use it for HTTPS connections.
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| 233 | *
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| 234 | * This will be called automatically if a 'https' URL is presented and
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| 235 | * RTHttpSetCaFile hasn't been called yet.
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| 236 | *
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| 237 | * @returns IPRT status code.
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| 238 | * @param hHttp The HTTP client instance.
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| 239 | * @param pErrInfo Where to store additional error/warning information.
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| 240 | * Optional.
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| 241 | */
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| 242 | RTR3DECL(int) RTHttpUseTemporaryCaFile(RTHTTP hHttp, PRTERRINFO pErrInfo);
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| 243 |
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| 244 | /**
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| 245 | * Set a custom certification authority file, containing root certificates.
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| 246 | *
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| 247 | * @returns iprt status code.
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| 248 | *
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| 249 | * @param hHttp The HTTP client instance.
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| 250 | * @param pszCAFile File name containing root certificates.
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| 251 | *
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| 252 | * @remarks For portable HTTPS support, use RTHttpGatherCaCertsInFile and pass
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| 253 | */
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| 254 | RTR3DECL(int) RTHttpSetCAFile(RTHTTP hHttp, const char *pszCAFile);
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| 255 |
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| 256 | /**
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| 257 | * Gathers certificates into a cryptographic (certificate) store
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| 258 | *
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| 259 | * This is a just a combination of RTHttpGatherCaCertsInStore and
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| 260 | * RTCrStoreCertExportAsPem.
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| 261 | *
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| 262 | * @returns IPRT status code.
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| 263 | * @param hStore The certificate store to gather the certificates
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| 264 | * in.
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| 265 | * @param fFlags RTHTTPGATHERCACERT_F_XXX.
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| 266 | * @param pErrInfo Where to store additional error/warning information.
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| 267 | * Optional.
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| 268 | */
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| 269 | RTR3DECL(int) RTHttpGatherCaCertsInStore(RTCRSTORE hStore, uint32_t fFlags, PRTERRINFO pErrInfo);
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| 270 |
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| 271 | /**
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| 272 | * Gathers certificates into a file that can be used with RTHttpSetCAFile.
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| 273 | *
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| 274 | * This is a just a combination of RTHttpGatherCaCertsInStore and
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| 275 | * RTCrStoreCertExportAsPem.
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| 276 | *
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| 277 | * @returns IPRT status code.
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| 278 | * @param pszCaFile The output file.
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| 279 | * @param fFlags RTHTTPGATHERCACERT_F_XXX.
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| 280 | * @param pErrInfo Where to store additional error/warning information.
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| 281 | * Optional.
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| 282 | */
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| 283 | RTR3DECL(int) RTHttpGatherCaCertsInFile(const char *pszCaFile, uint32_t fFlags, PRTERRINFO pErrInfo);
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| 284 |
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| 285 | /** @} */
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| 286 |
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| 287 | RT_C_DECLS_END
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| 288 |
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| 289 | #endif
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| 290 |
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