Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 666 insertions, 0 deletions

diff --git a/include/iprt/http.h b/include/iprt/http.h
new file mode 100644
index 00000000..754e9c24
--- /dev/null
+++ b/include/iprt/http.h
@@ -0,0 +1,666 @@
+/* $Id: http.h $ */
+/** @file
+ * IPRT - Simple HTTP/HTTPS Client API.
+ */
+
+/*
+ * Copyright (C) 2012-2019 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.
+ */
+
+#ifndef IPRT_INCLUDED_http_h
+#define IPRT_INCLUDED_http_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/types.h>
+
+RT_C_DECLS_BEGIN
+
+/** @defgroup grp_rt_http   RTHttp - Simple HTTP/HTTPS Client API
+ * @ingroup grp_rt
+ * @{
+ */
+
+/** @todo the following three definitions may move the iprt/types.h later. */
+/** HTTP/HTTPS client handle. */
+typedef R3PTRTYPE(struct RTHTTPINTERNAL *)      RTHTTP;
+/** Pointer to a HTTP/HTTPS client handle. */
+typedef RTHTTP                                 *PRTHTTP;
+/** Nil HTTP/HTTPS client handle. */
+#define NIL_RTHTTP                              ((RTHTTP)0)
+
+
+/**
+ * Creates a HTTP client instance.
+ *
+ * @returns IPRT status code.
+ * @param   phHttp      Where to store the HTTP handle.
+ */
+RTR3DECL(int) RTHttpCreate(PRTHTTP phHttp);
+
+/**
+ * Resets a HTTP client instance.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp       Handle to the HTTP interface.
+ * @param   fFlags      Flags, RTHTTP_RESET_F_XXX.
+ */
+RTR3DECL(int) RTHttpReset(RTHTTP hHttp, uint32_t fFlags);
+
+/** @name RTHTTP_RESET_F_XXX - Flags for RTHttpReset.
+ * @{ */
+/** Keep the headers. */
+#define RTHTTP_RESET_F_KEEP_HEADERS     RT_BIT_32(0)
+/** Mask containing the valid flags. */
+#define RTHTTP_RESET_F_VALID_MASK       UINT32_C(0x00000001)
+/** @} */
+
+
+/**
+ * Destroys a HTTP client instance.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp       Handle to the HTTP interface.
+ */
+RTR3DECL(int) RTHttpDestroy(RTHTTP hHttp);
+
+
+/**
+ * Retrieve the redir location for 301 responses.
+ *
+ * @param   hHttp               Handle to the HTTP interface.
+ * @param   ppszRedirLocation   Where to store the string.  To be freed with
+ *                              RTStrFree().
+ */
+RTR3DECL(int) RTHttpGetRedirLocation(RTHTTP hHttp, char **ppszRedirLocation);
+
+/**
+ * Perform a simple blocking HTTP GET request.
+ *
+ * This is a just a convenient wrapper around RTHttpGetBinary that returns a
+ * different type and sheds a parameter.
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszUrl          URL.
+ * @param   ppszNotUtf8     Where to return the pointer to the HTTP response.
+ *                          The string is of course zero terminated.  Use
+ *                          RTHttpFreeReponseText to free.
+ *
+ * @remarks BIG FAT WARNING!
+ *
+ *          This function does not guarantee the that returned string is valid UTF-8 or
+ *          any other kind of text encoding!
+ *
+ *          The caller must determine and validate the string encoding _before_
+ *          passing it along to functions that expect UTF-8!
+ *
+ *          Also, this function does not guarantee that the returned string
+ *          doesn't have embedded zeros and provides the caller no way of
+ *          finding out!  If you are worried about the response from the HTTPD
+ *          containing embedded zero's, use RTHttpGetBinary instead.
+ */
+RTR3DECL(int) RTHttpGetText(RTHTTP hHttp, const char *pszUrl, char **ppszNotUtf8);
+
+/**
+ * Perform a simple blocking HTTP HEAD request.
+ *
+ * This is a just a convenient wrapper around RTHttpGetBinary that returns a
+ * different type and sheds a parameter.
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszUrl          URL.
+ * @param   ppszNotUtf8     Where to return the pointer to the HTTP response.
+ *                          The string is of course zero terminated.  Use
+ *                          RTHttpFreeReponseText to free.
+ *
+ * @remarks BIG FAT WARNING!
+ *
+ *          This function does not guarantee the that returned string is valid UTF-8 or
+ *          any other kind of text encoding!
+ *
+ *          The caller must determine and validate the string encoding _before_
+ *          passing it along to functions that expect UTF-8!
+ *
+ *          Also, this function does not guarantee that the returned string
+ *          doesn't have embedded zeros and provides the caller no way of
+ *          finding out!  If you are worried about the response from the HTTPD
+ *          containing embedded zero's, use RTHttpGetHeaderBinary instead.
+ */
+RTR3DECL(int) RTHttpGetHeaderText(RTHTTP hHttp, const char *pszUrl, char **ppszNotUtf8);
+
+/**
+ * Frees memory returned by RTHttpGetText.
+ *
+ * @param   pszNotUtf8      What RTHttpGetText returned.
+ */
+RTR3DECL(void) RTHttpFreeResponseText(char *pszNotUtf8);
+
+/**
+ * Perform a simple blocking HTTP GET request.
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszUrl          The URL.
+ * @param   ppvResponse     Where to store the HTTP response data.  Use
+ *                          RTHttpFreeResponse to free.
+ * @param   pcb             Size of the returned buffer.
+ */
+RTR3DECL(int) RTHttpGetBinary(RTHTTP hHttp, const char *pszUrl, void **ppvResponse, size_t *pcb);
+
+/**
+ * Perform a simple blocking HTTP HEAD request.
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszUrl          The URL.
+ * @param   ppvResponse     Where to store the HTTP response data.  Use
+ *                          RTHttpFreeResponse to free.
+ * @param   pcb             Size of the returned buffer.
+ */
+RTR3DECL(int) RTHttpGetHeaderBinary(RTHTTP hHttp, const char *pszUrl, void **ppvResponse, size_t *pcb);
+
+/**
+ * Frees memory returned by RTHttpGetBinary.
+ *
+ * @param   pvResponse      What RTHttpGetBinary returned.
+ */
+RTR3DECL(void) RTHttpFreeResponse(void *pvResponse);
+
+/**
+ * Perform a simple blocking HTTP request, writing the output to a file.
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszUrl          The URL.
+ * @param   pszDstFile      The destination file name.
+ */
+RTR3DECL(int) RTHttpGetFile(RTHTTP hHttp, const char *pszUrl, const char *pszDstFile);
+
+/** HTTP methods. */
+typedef enum RTHTTPMETHOD
+{
+    RTHTTPMETHOD_INVALID = 0,
+    RTHTTPMETHOD_GET,
+    RTHTTPMETHOD_PUT,
+    RTHTTPMETHOD_POST,
+    RTHTTPMETHOD_PATCH,
+    RTHTTPMETHOD_DELETE,
+    RTHTTPMETHOD_HEAD,
+    RTHTTPMETHOD_OPTIONS,
+    RTHTTPMETHOD_TRACE,
+    RTHTTPMETHOD_END,
+    RTHTTPMETHOD_32BIT_HACK = 0x7fffffff
+} RTHTTPMETHOD;
+
+/**
+ * Returns the name of the HTTP method.
+ * @returns Read only string.
+ * @param   enmMethod       The HTTP method to name.
+ */
+RTR3DECL(const char *) RTHttpMethodName(RTHTTPMETHOD enmMethod);
+
+/**
+ * Performs generic blocking HTTP request, optionally returning the body and headers.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszUrl          The URL.
+ * @param   enmMethod       The HTTP method for the request.
+ * @param   pvReqBody       Pointer to the request body. NULL if none.
+ * @param   cbReqBody       Size of the request body. Zero if none.
+ * @param   puHttpStatus    Where to return the HTTP status code. Optional.
+ * @param   ppvHeaders      Where to return the headers. Optional.
+ * @param   pcbHeaders      Where to return the header size.
+ * @param   ppvBody         Where to return the body.  Optional.
+ * @param   pcbBody         Where to return the body size.
+ */
+RTR3DECL(int) RTHttpPerform(RTHTTP hHttp, const char *pszUrl, RTHTTPMETHOD enmMethod, void const *pvReqBody, size_t cbReqBody,
+                            uint32_t *puHttpStatus, void **ppvHeaders, size_t *pcbHeaders, void **ppvBody, size_t *pcbBody);
+
+
+/**
+ * Abort a pending HTTP request. A blocking RTHttpGet() call will return with
+ * VERR_HTTP_ABORTED. It may take some time (current cURL implementation needs
+ * up to 1 second) before the request is aborted.
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ */
+RTR3DECL(int) RTHttpAbort(RTHTTP hHttp);
+
+/**
+ * Tells the HTTP interface to use the system proxy configuration.
+ *
+ * @returns iprt status code.
+ * @param   hHttp           The HTTP client handle.
+ */
+RTR3DECL(int) RTHttpUseSystemProxySettings(RTHTTP hHttp);
+
+/**
+ * Sets up the proxy according to the specified URL.
+ *
+ * @returns IPRT status code.
+ * @retval  VWRN_WRONG_TYPE if the type isn't known/supported and we defaulted to 'http'.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszUrl          The proxy URL (libproxy style):
+ *
+ *                          [{type}"://"][{userid}[@{password}]:]{server}[":"{port}]
+ *
+ *                          Valid proxy types are: http (default), https, socks4, socks4a,
+ *                          socks5, socks5h and direct.  Support for the socks and https
+ *                          ones depends on the HTTP library we use.
+ *
+ *                          The port number defaults to 80 for http, 443 for https and 1080
+ *                          for the socks ones.
+ *
+ *                          If this starts with "direct://", then no proxy will be used.
+ *                          An empty or NULL string is equivalent to calling
+ *                          RTHttpUseSystemProxySettings().
+ */
+RTR3DECL(int) RTHttpSetProxyByUrl(RTHTTP hHttp, const char *pszUrl);
+
+/**
+ * Specify proxy settings.
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszProxyUrl     URL of the proxy server.
+ * @param   uPort           port number of the proxy, use 0 for not specifying a port.
+ * @param   pszProxyUser    Username, pass NULL for no authentication.
+ * @param   pszProxyPwd     Password, pass NULL for no authentication.
+ *
+ * @todo    This API does not allow specifying the type of proxy server... We're
+ *          currently assuming it's a HTTP proxy.
+ *
+ * @deprecated Use RTHttpSetProxyByUrl.
+ */
+RTR3DECL(int) RTHttpSetProxy(RTHTTP hHttp, const char *pszProxyUrl, uint32_t uPort,
+                             const char *pszProxyUser, const char *pszProxyPwd);
+
+/**
+ * Set follow redirects (3xx)
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   cMaxRedirects   Max number of redirects to follow.  Zero if no
+ *                          redirects should be followed but instead returned
+ *                          to caller.
+ */
+RTR3DECL(int) RTHttpSetFollowRedirects(RTHTTP hHttp, uint32_t cMaxRedirects);
+
+/**
+ * Set custom raw headers.
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   cHeaders        Number of custom headers.
+ * @param   papszHeaders    Array of headers in form "foo: bar".
+ */
+RTR3DECL(int) RTHttpSetHeaders(RTHTTP hHttp, size_t cHeaders, const char * const *papszHeaders);
+
+/** @name RTHTTPADDHDR_F_XXX - Flags for RTHttpAddRawHeader and RTHttpAddHeader
+ * @{ */
+#define RTHTTPADDHDR_F_BACK     UINT32_C(0) /**< Append the header. */
+#define RTHTTPADDHDR_F_FRONT    UINT32_C(1) /**< Prepend the header. */
+/** @} */
+
+/**
+ * Adds a raw header.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszHeader       Header string on the form "foo: bar".
+ * @param   fFlags          RTHTTPADDHDR_F_FRONT or RTHTTPADDHDR_F_BACK.
+ */
+RTR3DECL(int) RTHttpAddRawHeader(RTHTTP hHttp, const char *pszHeader, uint32_t fFlags);
+
+/**
+ * Adds a header field and value.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszField        The header field name.
+ * @param   pszValue        The header field value.
+ * @param   cchValue        The value length or RTSTR_MAX.
+ * @param   fFlags          Only RTHTTPADDHDR_F_FRONT or RTHTTPADDHDR_F_BACK,
+ *                          may be extended with encoding controlling flags if
+ *                          needed later.
+ */
+RTR3DECL(int) RTHttpAddHeader(RTHTTP hHttp, const char *pszField, const char *pszValue, size_t cchValue, uint32_t fFlags);
+
+/**
+ * Gets a header previously added using RTHttpSetHeaders, RTHttpAppendRawHeader
+ * or RTHttpAppendHeader.
+ *
+ * @returns Pointer to the header value on if found, otherwise NULL.
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszField        The field name (no colon).
+ * @param   cchField        The length of the field name or RTSTR_MAX.
+ */
+RTR3DECL(const char *) RTHttpGetHeader(RTHTTP hHttp, const char *pszField, size_t cchField);
+
+/**
+ * Gets the number of headers specified by RTHttpAddHeader, RTHttpAddRawHeader or RTHttpSetHeaders.
+ *
+ * @returns Number of headers.
+ * @param   hHttp           The HTTP client handle.
+ * @note    This can be slow and is only really intended for test cases and debugging!
+ */
+RTR3DECL(size_t)    RTHttpGetHeaderCount(RTHTTP hHttp);
+
+/**
+ * Gets a header by ordinal.
+ *
+ * Can be used together with RTHttpGetHeaderCount by test case and debug code to
+ * iterate headers specified by RTHttpAddHeader, RTHttpAddRawHeader or RTHttpSetHeaders.
+ *
+ * @returns The header string ("field: value").
+ * @param   hHttp           The HTTP client handle.
+ * @param   iOrdinal        The number of the header to get.
+ * @note    This can be slow and is only really intended for test cases and debugging!
+ */
+RTR3DECL(const char *) RTHttpGetByOrdinal(RTHTTP hHttp, size_t iOrdinal);
+
+/**
+ * Sign all headers present according to pending "Signing HTTP Messages" RFC.
+ *
+ * Currently hardcoded RSA-SHA-256 algorithm choice.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   enmMethod       The HTTP method that will be used for the request.
+ * @param   pszUrl          The target URL for the request.
+ * @param   hKey            The RSA key to use when signing.
+ * @param   pszKeyId        The key ID string corresponding to @a hKey.
+ * @param   fFlags          Reserved for future, MBZ.
+ *
+ * @note    Caller is responsible for making all desired fields are present before
+ *          making the call.
+ *
+ * @remarks Latest RFC draft at the time of writing:
+ *          https://tools.ietf.org/html/draft-cavage-http-signatures-10
+ */
+RTR3DECL(int) RTHttpSignHeaders(RTHTTP hHttp, RTHTTPMETHOD enmMethod, const char *pszUrl,
+                                RTCRKEY hKey, const char *pszKeyId, uint32_t fFlags);
+
+/**
+ * Tells the HTTP client instance to gather system CA certificates into a
+ * temporary file and use it for HTTPS connections.
+ *
+ * This will be called automatically if a 'https' URL is presented and
+ * RTHttpSetCaFile hasn't been called yet.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   pErrInfo        Where to store additional error/warning information.
+ *                          Optional.
+ */
+RTR3DECL(int) RTHttpUseTemporaryCaFile(RTHTTP hHttp, PRTERRINFO pErrInfo);
+
+/**
+ * Set a custom certification authority file, containing root certificates.
+ *
+ * @returns iprt status code.
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   pszCAFile       File name containing root certificates.
+ *
+ * @remarks For portable HTTPS support, use RTHttpGatherCaCertsInFile and pass
+ */
+RTR3DECL(int) RTHttpSetCAFile(RTHTTP hHttp, const char *pszCAFile);
+
+/**
+ * Gathers certificates into a cryptographic (certificate) store
+ *
+ * This is a just a combination of RTHttpGatherCaCertsInStore and
+ * RTCrStoreCertExportAsPem.
+ *
+ * @returns IPRT status code.
+ * @param   hStore          The certificate store to gather the certificates
+ *                          in.
+ * @param   fFlags          RTHTTPGATHERCACERT_F_XXX.
+ * @param   pErrInfo        Where to store additional error/warning information.
+ *                          Optional.
+ */
+RTR3DECL(int) RTHttpGatherCaCertsInStore(RTCRSTORE hStore, uint32_t fFlags, PRTERRINFO pErrInfo);
+
+/**
+ * Gathers certificates into a file that can be used with RTHttpSetCAFile.
+ *
+ * This is a just a combination of RTHttpGatherCaCertsInStore and
+ * RTCrStoreCertExportAsPem.
+ *
+ * @returns IPRT status code.
+ * @param   pszCaFile       The output file.
+ * @param   fFlags          RTHTTPGATHERCACERT_F_XXX.
+ * @param   pErrInfo        Where to store additional error/warning information.
+ *                          Optional.
+ */
+RTR3DECL(int) RTHttpGatherCaCertsInFile(const char *pszCaFile, uint32_t fFlags, PRTERRINFO pErrInfo);
+
+/**
+ * Callback function to be called during RTHttpGet*().
+ *
+ * Register it using RTHttpSetDownloadProgressCallback().
+ *
+ * @param   hHttp           The HTTP client handle.
+ * @param   pvUser          The user parameter specified when registering the callback.
+ * @param   cbDowloadTotal  The content-length value, if available.
+ *                          Warning! Not entirely clear what it will be if
+ *                                   unavailable, probably 0.
+ * @param   cbDowloaded     How much was downloaded thus far.
+ */
+typedef DECLCALLBACK(void) FNRTHTTPDOWNLDPROGRCALLBACK(RTHTTP hHttp, void *pvUser, uint64_t cbDownloadTotal, uint64_t cbDownloaded);
+/** Pointer to a download progress callback. */
+typedef FNRTHTTPDOWNLDPROGRCALLBACK *PFNRTHTTPDOWNLDPROGRCALLBACK;
+
+/**
+ * Set the callback function which is called during (GET)
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   pfnCallback     Progress function to be called. Set it to
+ *                          NULL to disable the callback.
+ * @param   pvUser          Convenience pointer for the callback function.
+ */
+RTR3DECL(int) RTHttpSetDownloadProgressCallback(RTHTTP hHttp, PFNRTHTTPDOWNLDPROGRCALLBACK pfnCallback, void *pvUser);
+
+/**
+ * Callback function for receiving body data.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   pvBuf           Pointer to buffer with body bytes.
+ * @param   cbBuf           Number of bytes in the buffer.
+ * @param   uHttpStatus     The HTTP status code.
+ * @param   offContent      The byte offset corresponding to the start of @a pvBuf.
+ * @param   cbContent       The content length field value, UINT64_MAX if not available.
+ * @param   pvUser          The user parameter.
+ *
+ * @note    The @a offContent parameter does not imply random access or anthing
+ *          like that, it is just a convenience provided by the caller.  The
+ *          value is the sum of the previous @a cbBuf values.
+ */
+typedef DECLCALLBACK(int) FNRTHTTPDOWNLOADCALLBACK(RTHTTP hHttp, void const *pvBuf, size_t cbBuf, uint32_t uHttpStatus,
+                                                   uint64_t offContent, uint64_t cbContent, void *pvUser);
+/** Pointer to a download data receiver callback. */
+typedef FNRTHTTPDOWNLOADCALLBACK *PFNRTHTTPDOWNLOADCALLBACK;
+
+/**
+ * Set the callback function for downloading data (HTTP GET).
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   fFlags          RTHTTPDOWNLOAD_F_XXX.
+ * @param   pfnCallback     The callback function.  Pass NULL to reset the callback.
+ * @param   pvUser          Convenience pointer for the callback function.
+ *
+ * @remarks There can only be one download callback, so it is not possible to
+ *          call this method for different status codes.  Only the last one
+ *          with be honored.
+ *
+ * @note    This only works reliably with RTHttpPerform at the moment.
+ */
+RTR3DECL(int) RTHttpSetDownloadCallback(RTHTTP hHttp, uint32_t fFlags, PFNRTHTTPDOWNLOADCALLBACK pfnCallback, void *pvUser);
+
+/** @name RTHTTPDOWNLOAD_F_XXX */
+/** The lower 10 bits gives the HTTP status required by the callback.
+ * For all other status codes, any body data will be returned via the
+ * RTHttpPerform ppvBody/pcbBody return parameters. */
+#define RTHTTPDOWNLOAD_F_ONLY_STATUS_MASK       UINT32_C(0x000003ff)
+/** Callback requires no special HTTP status. */
+#define RTHTTPDOWNLOAD_F_ANY_STATUS             UINT32_C(0x000003ff)
+/** @} */
+
+
+/**
+ * Callback function for producing body data for uploading.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   pvBuf           Where to put the data to upload
+ * @param   cbBuf           Max number of bytes to provide.
+ * @param   offContent      The byte offset corresponding to the start of @a pvBuf.
+ * @param   pcbActual       Actual number of bytes provided.
+ * @param   pvUser          The user parameter.
+ *
+ * @note    The @a offContent parameter does not imply random access or anthing
+ *          like that, it is just a convenience provided by the caller.  The
+ *          value is the sum of the previously returned @a *pcbActual values.
+ */
+typedef DECLCALLBACK(int) FNRTHTTPUPLOADCALLBACK(RTHTTP hHttp, void *pvBuf, size_t cbBuf, uint64_t offContent,
+                                                 size_t *pcbActual, void *pvUser);
+/** Pointer to an upload data producer callback. */
+typedef FNRTHTTPUPLOADCALLBACK *PFNRTHTTPUPLOADCALLBACK;
+
+/**
+ * Set the callback function for providing upload data (HTTP PUT / POST).
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   cbContent       The content length, UINT64_MAX if not know or specified separately.
+ * @param   pfnCallback     The callback function.  Pass NULL to reset the callback.
+ * @param   pvUser          Convenience pointer for the callback function.
+ *
+ * @note    This only works reliably with RTHttpPerform at the moment.
+ */
+RTR3DECL(int) RTHttpSetUploadCallback(RTHTTP hHttp, uint64_t cbContent, PFNRTHTTPUPLOADCALLBACK pfnCallback, void *pvUser);
+
+
+/**
+ * Callback for consuming header fields.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   uMatchWord      Match word constructed by RTHTTP_MAKE_HDR_MATCH_WORD
+ * @param   pchField        The field name (not zero terminated).
+ *                          Not necessarily valid UTF-8!
+ * @param   cchField        The length of the field.
+ * @param   pchValue        The field value (not zero terminated).
+ *                          Not necessarily valid UTF-8!
+ * @param   cchValue        The length of the value.
+ * @param   pvUser          The user parameter.
+ *
+ * @remarks This is called with two fictitious header fields too:
+ *              - ':http-status-line' -- the HTTP/{version} {status-code} stuff.
+ *              - ':end-of-headers'   -- marks the end of header callbacks.
+ */
+typedef DECLCALLBACK(int) FNRTHTTPHEADERCALLBACK(RTHTTP hHttp, uint32_t uMatchWord, const char *pchField, size_t cchField,
+                                                 const char *pchValue, size_t cchValue, void *pvUser);
+/** Pointer to a header field consumer callback. */
+typedef FNRTHTTPHEADERCALLBACK *PFNRTHTTPHEADERCALLBACK;
+
+/**
+ * Forms a fast header match word.
+ *
+ * @returns Fast header match word.
+ * @param   a_cchField      The length of the header field name.
+ * @param   a_chLower1      The first character in the name, lowercased.
+ * @param   a_chLower2      The second character in the name, lowercased.
+ * @param   a_chLower3      The third character in the name, lowercased.
+ */
+#define RTHTTP_MAKE_HDR_MATCH_WORD(a_cchField, a_chLower1, a_chLower2, a_chLower3)   \
+    RT_MAKE_U32_FROM_U8(a_cchField, a_chLower1, a_chLower2, a_chLower3)
+
+/**
+ * Set the callback function for processing header fields in the response.
+ *
+ * @returns IPRT status code.
+ * @param   hHttp           The HTTP client handle.
+ * @param   pfnCallback     The callback function.  Pass NULL to reset the callback.
+ * @param   pvUser          Convenience pointer for the callback function.
+ *
+ * @note    This only works reliably with RTHttpPerform at the moment.
+ */
+RTR3DECL(int) RTHttpSetHeaderCallback(RTHTTP hHttp, PFNRTHTTPHEADERCALLBACK pfnCallback, void *pvUser);
+
+
+/** @name thin wrappers for setting one or a few related curl options
+ * @remarks Temporary. Will not be included in the 6.0 release!
+ * @{ */
+typedef size_t FNRTHTTPREADCALLBACKRAW(void *pbDst, size_t cbItem, size_t cItems, void *pvUser);
+typedef FNRTHTTPREADCALLBACKRAW *PFNRTHTTPREADCALLBACKRAW;
+#define RT_HTTP_READCALLBACK_ABORT 0x10000000 /* CURL_READFUNC_ABORT */
+RTR3DECL(int) RTHttpRawSetReadCallback(RTHTTP hHttp, PFNRTHTTPREADCALLBACKRAW pfnRead, void *pvUser);
+
+typedef size_t FNRTHTTPWRITECALLBACKRAW(char *pbSrc, size_t cbItem, size_t cItems, void *pvUser);
+typedef FNRTHTTPWRITECALLBACKRAW *PFNRTHTTPWRITECALLBACKRAW;
+RTR3DECL(int) RTHttpRawSetWriteCallback(RTHTTP hHttp, PFNRTHTTPWRITECALLBACKRAW pfnWrite, void *pvUser);
+RTR3DECL(int) RTHttpRawSetWriteHeaderCallback(RTHTTP hHttp, PFNRTHTTPWRITECALLBACKRAW pfnWrite, void *pvUser);
+
+RTR3DECL(int) RTHttpRawSetUrl(RTHTTP hHttp, const char *pszUrl);
+
+RTR3DECL(int) RTHttpRawSetGet(RTHTTP hHttp);
+RTR3DECL(int) RTHttpRawSetHead(RTHTTP hHttp);
+RTR3DECL(int) RTHttpRawSetPost(RTHTTP hHttp);
+RTR3DECL(int) RTHttpRawSetPut(RTHTTP hHttp);
+RTR3DECL(int) RTHttpRawSetDelete(RTHTTP hHttp);
+RTR3DECL(int) RTHttpRawSetCustomRequest(RTHTTP hHttp, const char *pszVerb);
+
+RTR3DECL(int) RTHttpRawSetPostFields(RTHTTP hHttp, const void *pv, size_t cb);
+RTR3DECL(int) RTHttpRawSetInfileSize(RTHTTP hHttp, RTFOFF cb);
+
+RTR3DECL(int) RTHttpRawSetVerbose(RTHTTP hHttp, bool fValue);
+RTR3DECL(int) RTHttpRawSetTimeout(RTHTTP hHttp, long sec);
+
+RTR3DECL(int) RTHttpRawPerform(RTHTTP hHttp);
+
+RTR3DECL(int) RTHttpRawGetResponseCode(RTHTTP hHttp, long *plCode);
+/** @} */
+
+/** @} */
+
+RT_C_DECLS_END
+
+#endif /* !IPRT_INCLUDED_http_h */
+