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Diffstat (limited to 'include/iprt/http.h')
| -rw-r--r-- | include/iprt/http.h | 746 |
1 files changed, 746 insertions, 0 deletions
diff --git a/include/iprt/http.h b/include/iprt/http.h new file mode 100644 index 00000000..5ab966fd --- /dev/null +++ b/include/iprt/http.h @@ -0,0 +1,746 @@ +/* $Id: http.h $ */ +/** @file + * IPRT - Simple HTTP/HTTPS Client API. + */ + +/* + * Copyright (C) 2012-2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox 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. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#ifndef IPRT_INCLUDED_http_h +#define IPRT_INCLUDED_http_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <iprt/types.h> +#include <iprt/http-common.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. + * + * @note There is a limit on how much this function allows to be downloaded, + * given that the return requires a single heap allocation and all + * that. Currently 32 MB on 32-bit hosts and 64 MB on 64-bit hosts. + * Use RTHttpGetFile or RTHttpSetDownloadCallback for larger transfers. + */ +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); + +/** + * 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); + +/** + * Gets the follow redirect setting. + * + * @returns cMaxRedirects value, 0 means not to follow. + * @param hHttp The HTTP client handle. + */ +RTR3DECL(uint32_t) RTHttpGetFollowRedirects(RTHTTP hHttp); + +/** + * 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); + +/** + * Set whether to verify the peer's SSL certificate. + * + * The default is to verify it. It can however sometimes be useful or even + * necessary to skip this. + * + * @returns iprt status code. + * + * @param hHttp The HTTP client handle. + * @param fVerify Verify the certificate if @a true. + */ +RTR3DECL(int) RTHttpSetVerifyPeer(RTHTTP hHttp, bool fVerify); + +/** + * Get the state of the peer's SSL certificate setting. + * + * @returns true if we verify the SSL certificate, false if not. + * @param hHttp The HTTP client handle. + */ +RTR3DECL(bool) RTHttpGetVerifyPeer(RTHTTP hHttp); + +/** + * 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 cbDownloadTotal The content-length value, if available. + * Warning! Not entirely clear what it will be if + * unavailable, probably 0. + * @param cbDownloaded How much was downloaded thus far. + */ +typedef DECLCALLBACKTYPE(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 DECLCALLBACKTYPE(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 DECLCALLBACKTYPE(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 DECLCALLBACKTYPE(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); + + +/** + * Supported proxy types. + */ +typedef enum RTHTTPPROXYTYPE +{ + RTHTTPPROXYTYPE_INVALID = 0, + RTHTTPPROXYTYPE_NOPROXY, + RTHTTPPROXYTYPE_HTTP, + RTHTTPPROXYTYPE_HTTPS, + RTHTTPPROXYTYPE_SOCKS4, + RTHTTPPROXYTYPE_SOCKS5, + RTHTTPPROXYTYPE_UNKNOWN, + RTHTTPPROXYTYPE_END, + RTHTTPPROXYTYPE_32BIT_HACK = 0x7fffffff +} RTHTTPPROXYTYPE; + +/** + * Proxy information returned by RTHttpQueryProxyInfoForUrl. + */ +typedef struct RTHTTPPROXYINFO +{ + /** Proxy host name. */ + char *pszProxyHost; + /** Proxy port number (UINT32_MAX if not specified). */ + uint32_t uProxyPort; + /** The proxy type (RTHTTPPROXYTYPE_HTTP, RTHTTPPROXYTYPE_SOCKS5, ++). */ + RTHTTPPROXYTYPE enmProxyType; + /** Proxy username. */ + char *pszProxyUsername; + /** Proxy password. */ + char *pszProxyPassword; +} RTHTTPPROXYINFO; +/** A pointer to proxy information structure. */ +typedef RTHTTPPROXYINFO *PRTHTTPPROXYINFO; + +/** + * Retrieve system proxy information for the specified URL. + * + * @returns IPRT status code. + * @param hHttp The HTTP client handle. + * @param pszUrl The URL that needs to be accessed via proxy. + * @param pProxyInfo Where to return the proxy information. This must be + * freed up by calling RTHttpFreeProxyInfo() when done. + */ +RTR3DECL(int) RTHttpQueryProxyInfoForUrl(RTHTTP hHttp, const char *pszUrl, PRTHTTPPROXYINFO pProxyInfo); + +/** + * Counter part to RTHttpQueryProxyInfoForUrl that releases any memory returned + * in the proxy info structure. + * + * @returns IPRT status code. + * @param pProxyInfo Pointer to proxy info returned by a successful + * RTHttpQueryProxyInfoForUrl() call. + */ +RTR3DECL(int) RTHttpFreeProxyInfo(PRTHTTPPROXYINFO pProxyInfo); + +/** @name thin wrappers for setting one or a few related curl options + * @remarks Temporary. Will not be included in the 7.0 release! + * @{ */ +typedef DECLCALLBACKTYPE_EX(size_t, RT_NOTHING, 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 DECLCALLBACKTYPE_EX(size_t, RT_NOTHING, 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 */ + |