/** @file * IPRT - Uniform Resource Identifier handling. */ /* * Copyright (C) 2011-2019 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_uri_h #define IPRT_INCLUDED_uri_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #include #include RT_C_DECLS_BEGIN /** @defgroup grp_rt_uri RTUri - Uri parsing and creation * * URI parsing and creation based on RFC-3986. * * @remarks The whole specification isn't implemented and we only provide scheme * specific special APIs for "file://". * * @ingroup grp_rt * @{ */ /** * Parsed URI. * * @remarks This structure is subject to change. */ typedef struct RTURIPARSED { /** Magic value (for internal use only). */ uint32_t u32Magic; /** RTURIPARSED_F_XXX. */ uint32_t fFlags; /** The length of the scheme. */ size_t cchScheme; /** The offset into the string of the authority. */ size_t offAuthority; /** The authority length. * @remarks The authority component can be zero length, so to check whether * it's there or not consult RTURIPARSED_F_HAVE_AUTHORITY. */ size_t cchAuthority; /** The offset into the string of the path. */ size_t offPath; /** The length of the path. */ size_t cchPath; /** The offset into the string of the query. */ size_t offQuery; /** The length of the query. */ size_t cchQuery; /** The offset into the string of the fragment. */ size_t offFragment; /** The length of the fragment. */ size_t cchFragment; /** @name Authority subdivisions * @{ */ /** If there is a userinfo part, this is the start of it. Otherwise it's the * same as offAuthorityHost. */ size_t offAuthorityUsername; /** The length of the username (zero if not present). */ size_t cchAuthorityUsername; /** If there is a userinfo part containing a password, this is the start of it. * Otherwise it's the same as offAuthorityHost. */ size_t offAuthorityPassword; /** The length of the password (zero if not present). */ size_t cchAuthorityPassword; /** The offset of the host part of the authority. */ size_t offAuthorityHost; /** The length of the host part of the authority. */ size_t cchAuthorityHost; /** The authority port number, UINT32_MAX if not present or empty. */ uint32_t uAuthorityPort; /** @} */ } RTURIPARSED; /** Pointer to a parsed URI. */ typedef RTURIPARSED *PRTURIPARSED; /** Pointer to a const parsed URI. */ typedef RTURIPARSED const *PCRTURIPARSED; /** @name RTURIPARSED_F_XXX - RTURIPARSED::fFlags * @{ */ /** Set if the URI contains escaped characters. */ #define RTURIPARSED_F_CONTAINS_ESCAPED_CHARS UINT32_C(0x00000001) /** Set if the URI has an authority component. Necessary since the authority * component can have a zero length. */ #define RTURIPARSED_F_HAS_AUTHORITY UINT32_C(0x00000002) /** Set if there is a port component. */ #define RTURIPARSED_F_HAS_PORT UINT32_C(0x00000004) /** @} */ /** * Parses a URI. * * @returns IPRT status code. * @param pszUri The URI to parse. * @param pParsed Where to return the details. This can be handed * to the RTUriParsed* APIs for retriving * information. */ RTDECL(int) RTUriParse(const char *pszUri, PRTURIPARSED pParsed); /** * Extract the scheme out of a parsed URI. * * @returns the scheme if the URI is valid, NULL otherwise. * @param pszUri The URI passed to RTUriParse when producing the * info in @a pParsed. * @param pParsed Pointer to the RTUriParse output. */ RTDECL(char *) RTUriParsedScheme(const char *pszUri, PCRTURIPARSED pParsed); /** * Extract the authority out of a parsed URI. * * @returns the authority if the URI contains one, NULL otherwise. * @param pszUri The URI passed to RTUriParse when producing the * info in @a pParsed. * @param pParsed Pointer to the RTUriParse output. * @remarks The authority can have a zero length. */ RTDECL(char *) RTUriParsedAuthority(const char *pszUri, PCRTURIPARSED pParsed); /** * Extract the username out of the authority component in a parsed URI. * * @returns The username if the URI contains one, otherwise NULL. * @param pszUri The URI passed to RTUriParse when producing the * info in @a pParsed. * @param pParsed Pointer to the RTUriParse output. * * @todo This may currently be returning NULL when it maybe would be more * appropriate to return an empty string... */ RTDECL(char *) RTUriParsedAuthorityUsername(const char *pszUri, PCRTURIPARSED pParsed); /** * Extract the password out of the authority component in a parsed URI. * * @returns The password if the URI contains one, otherwise NULL. * @param pszUri The URI passed to RTUriParse when producing the * info in @a pParsed. * @param pParsed Pointer to the RTUriParse output. * * @todo This may currently be returning NULL when it maybe would be more * appropriate to return an empty string... */ RTDECL(char *) RTUriParsedAuthorityPassword(const char *pszUri, PCRTURIPARSED pParsed); /** * Extract the host out of the authority component in a parsed URI. * * @returns The host if the URI contains one, otherwise NULL. * @param pszUri The URI passed to RTUriParse when producing the * info in @a pParsed. * @param pParsed Pointer to the RTUriParse output. * * @todo This may currently be returning NULL when it maybe would be more * appropriate to return an empty string... */ RTDECL(char *) RTUriParsedAuthorityHost(const char *pszUri, PCRTURIPARSED pParsed); /** * Extract the port number out of the authority component in a parsed URI. * * @returns The port number if the URI contains one, otherwise UINT32_MAX. * @param pszUri The URI passed to RTUriParse when producing the * info in @a pParsed. * @param pParsed Pointer to the RTUriParse output. */ RTDECL(uint32_t) RTUriParsedAuthorityPort(const char *pszUri, PCRTURIPARSED pParsed); /** * Extract the path out of a parsed URI. * * @returns the path if the URI contains one, NULL otherwise. * @param pszUri The URI passed to RTUriParse when producing the * info in @a pParsed. * @param pParsed Pointer to the RTUriParse output. */ RTDECL(char *) RTUriParsedPath(const char *pszUri, PCRTURIPARSED pParsed); /** * Extract the query out of a parsed URI. * * @returns the query if the URI contains one, NULL otherwise. * @param pszUri The URI passed to RTUriParse when producing the * info in @a pParsed. * @param pParsed Pointer to the RTUriParse output. */ RTDECL(char *) RTUriParsedQuery(const char *pszUri, PCRTURIPARSED pParsed); /** * Extract the fragment out of a parsed URI. * * @returns the fragment if the URI contains one, NULL otherwise. * @param pszUri The URI passed to RTUriParse when producing the * info in @a pParsed. * @param pParsed Pointer to the RTUriParse output. */ RTDECL(char *) RTUriParsedFragment(const char *pszUri, PCRTURIPARSED pParsed); /** * Creates a generic URI. * * The returned pointer must be freed using RTStrFree(). * * @returns the new URI on success, NULL otherwise. * @param pszScheme The URI scheme. * @param pszAuthority The authority part of the URI (optional). * @param pszPath The path part of the URI (optional). * @param pszQuery The query part of the URI (optional). * @param pszFragment The fragment part of the URI (optional). */ RTDECL(char *) RTUriCreate(const char *pszScheme, const char *pszAuthority, const char *pszPath, const char *pszQuery, const char *pszFragment); /** * Check whether the given scheme matches that of the URI. * * This does not validate the URI, it just compares the scheme, no more, no * less. Thus it's much faster than using RTUriParsedScheme. * * @returns true if the scheme match, false if not. * @param pszUri The URI to check. * @param pszScheme The scheme to compare with. */ RTDECL(bool) RTUriIsSchemeMatch(const char *pszUri, const char *pszScheme); /** @defgroup grp_rt_uri_file RTUriFile - Uri file parsing and creation * * Implements basic "file:" scheme support to the generic RTUri interface. This * is partly documented in RFC-1738. * * @{ */ /** * Creates a file URI. * * The returned pointer must be freed using RTStrFree(). * * @returns The new URI on success, NULL otherwise. Free With RTStrFree. * @param pszPath The path to create an 'file://' URI for. This is * assumed to be using the default path style of the * system. * * @sa RTUriFileCreateEx, RTUriCreate */ RTDECL(char *) RTUriFileCreate(const char *pszPath); /** * Creates an file URL for the given path. * * This API works like RTStrToUtf16Ex with regard to result allocation or * buffering (i.e. it's a bit complicated but very flexible). * * @returns iprt status code. * @param pszPath The path to convert to a file:// URL. * @param fPathStyle The input path style, exactly one of * RTPATH_STR_F_STYLE_HOST, RTPATH_STR_F_STYLE_DOS and * RTPATH_STR_F_STYLE_UNIX. Must include iprt/path.h. * @param ppszUri If cbUri is non-zero, this must either be pointing * to pointer to a buffer of the specified size, or * pointer to a NULL pointer. If *ppszUri is NULL or * cbUri is zero a buffer of at least cbUri chars will * be allocated to hold the URI. If a buffer was * requested it must be freed using RTStrFree(). * @param cbUri The buffer size in bytes (includes terminator). * @param pcchUri Where to store the length of the URI string, * excluding the terminator. (Optional) * * This may be set under some error conditions, * however, only for VERR_BUFFER_OVERFLOW and * VERR_NO_STR_MEMORY will it contain a valid string * length that can be used to resize the buffer. * @sa RTUriCreate, RTUriFileCreate */ RTDECL(int) RTUriFileCreateEx(const char *pszPath, uint32_t fPathStyle, char **ppszUri, size_t cbUri, size_t *pcchUri); /** * Returns the file path encoded in the file URI. * * This differs a quite a bit from RTUriParsedPath in that it tries to be * compatible with URL produced by older windows version. This API is basically * producing the same results as the PathCreateFromUrl API on Windows. * * @returns The path if the URI contains one, system default path style, * otherwise NULL. * @param pszUri The alleged 'file://' URI to extract the path from. * * @sa RTUriParsedPath, RTUriFilePathEx */ RTDECL(char *) RTUriFilePath(const char *pszUri); /** * Queries the file path for the given file URI. * * This API works like RTStrToUtf16Ex with regard to result allocation or * buffering (i.e. it's a bit complicated but very flexible). * * This differs a quite a bit from RTUriParsedPath in that it tries to be * compatible with URL produced by older windows version. This API is basically * producing the same results as the PathCreateFromUrl API on Windows. * * @returns IPRT status code. * @retval VERR_URI_NOT_FILE_SCHEME if not file scheme. * * @param pszUri The alleged file:// URI to extract the path from. * @param fPathStyle The output path style, exactly one of * RTPATH_STR_F_STYLE_HOST, RTPATH_STR_F_STYLE_DOS and * RTPATH_STR_F_STYLE_UNIX. Must include iprt/path.h. * @param ppszPath If cbPath is non-zero, this must either be pointing * to pointer to a buffer of the specified size, or * pointer to a NULL pointer. If *ppszPath is NULL or * cbPath is zero a buffer of at least cbPath chars * will be allocated to hold the path. If a buffer was * requested it must be freed using RTStrFree(). * @param cbPath The buffer size in bytes (includes terminator). * @param pcchPath Where to store the length of the path string, * excluding the terminator. (Optional) * * This may be set under some error conditions, * however, only for VERR_BUFFER_OVERFLOW and * VERR_NO_STR_MEMORY will it contain a valid string * length that can be used to resize the buffer. * @sa RTUriParsedPath, RTUriFilePath */ RTDECL(int) RTUriFilePathEx(const char *pszUri, uint32_t fPathStyle, char **ppszPath, size_t cbPath, size_t *pcchPath); /** @} */ /** @} */ RT_C_DECLS_END #endif /* !IPRT_INCLUDED_uri_h */