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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 03:01:46 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 03:01:46 +0000 |
commit | f8fe689a81f906d1b91bb3220acde2a4ecb14c5b (patch) | |
tree | 26484e9d7e2c67806c2d1760196ff01aaa858e8c /src/libs/xpcom18a4/xpcom/io/nsEscape.h | |
parent | Initial commit. (diff) | |
download | virtualbox-upstream.tar.xz virtualbox-upstream.zip |
Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/libs/xpcom18a4/xpcom/io/nsEscape.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/io/nsEscape.h b/src/libs/xpcom18a4/xpcom/io/nsEscape.h new file mode 100644 index 00000000..aaf56738 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/io/nsEscape.h @@ -0,0 +1,196 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is mozilla.org code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* First checked in on 98/12/03 by John R. McMullen, derived from net.h/mkparse.c. */ + +#ifndef _ESCAPE_H_ +#define _ESCAPE_H_ + +#include "prtypes.h" +#include "nscore.h" +#include "nsError.h" +#include "nsString.h" + +#ifdef VBOX_WITH_XPCOM_NAMESPACE_CLEANUP +#define nsEscape VBoxNsxpnsEscape +#define nsUnescape VBoxNsxpnsUnescape +#define nsUnescapeCount VBoxNsxpnsUnescapeCount +#define nsEscapeHTML VBoxNsxpnsEscapeHTML +#define nsEscapeHTML2 VBoxNsxpnsEscapeHTML2 +#endif /* VBOX_WITH_XPCOM_NAMESPACE_CLEANUP */ + +/** + * Valid mask values for nsEscape + */ +typedef enum { + url_XAlphas = PR_BIT(0) /**< Normal escape - leave alphas intact, escape the rest */ +, url_XPAlphas = PR_BIT(1) /**< As url_XAlphas, but convert spaces (0x20) to '+' and plus to %2B */ +, url_Path = PR_BIT(2) /**< As url_XAlphas, but don't escape slash ('/') */ +} nsEscapeMask; + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Escape the given string according to mask + * @param str The string to escape + * @param mask How to escape the string + * @return A newly allocated escaped string that must be free'd with + * nsCRT::free, or null on failure + */ +NS_COM char * nsEscape(const char * str, nsEscapeMask mask); + +NS_COM char * nsUnescape(char * str); + /* decode % escaped hex codes into character values, + * modifies the parameter, returns the same buffer + */ + +NS_COM PRInt32 nsUnescapeCount (char * str); + /* decode % escaped hex codes into character values, + * modifies the parameter buffer, returns the length of the result + * (result may contain \0's). + */ + +NS_COM char * +nsEscapeHTML(const char * string); + +NS_COM PRUnichar * +nsEscapeHTML2(const PRUnichar *aSourceBuffer, + PRInt32 aSourceBufferLen = -1); + /* + * Escape problem char's for HTML display + */ + + +#ifdef __cplusplus +} +#endif + + +/** + * NS_EscapeURL/NS_UnescapeURL constants for |flags| parameter: + */ +enum EscapeMask { + /** url components **/ + esc_Scheme = PR_BIT(0), + esc_Username = PR_BIT(1), + esc_Password = PR_BIT(2), + esc_Host = PR_BIT(3), + esc_Directory = PR_BIT(4), + esc_FileBaseName = PR_BIT(5), + esc_FileExtension = PR_BIT(6), + esc_FilePath = esc_Directory | esc_FileBaseName | esc_FileExtension, + esc_Param = PR_BIT(7), + esc_Query = PR_BIT(8), + esc_Ref = PR_BIT(9), + /** special flags **/ + esc_Minimal = esc_Scheme | esc_Username | esc_Password | esc_Host | esc_FilePath | esc_Param | esc_Query | esc_Ref, + esc_Forced = PR_BIT(10), /* forces escaping of existing escape sequences */ + esc_OnlyASCII = PR_BIT(11), /* causes non-ascii octets to be skipped */ + esc_OnlyNonASCII = PR_BIT(12), /* causes _graphic_ ascii octets (0x20-0x7E) + * to be skipped when escaping. causes all + * ascii octets to be skipped when unescaping */ + esc_AlwaysCopy = PR_BIT(13), /* copy input to result buf even if escaping is unnecessary */ + esc_Colon = PR_BIT(14), /* forces escape of colon */ + esc_SkipControl = PR_BIT(15) /* skips C0 and DEL from unescaping */ +}; + +/** + * NS_EscapeURL + * + * Escapes invalid char's in an URL segment. Has no side-effect if the URL + * segment is already escaped. Otherwise, the escaped URL segment is appended + * to |result|. + * + * @param str url segment string + * @param len url segment string length (-1 if unknown) + * @param flags url segment type flag + * @param result result buffer, untouched if part is already escaped + * + * @return TRUE if escaping was performed, FALSE otherwise. + */ +NS_COM PRBool NS_EscapeURL(const char *str, + PRInt32 len, + PRInt16 flags, + nsACString &result); + +/** + * Expands URL escape sequences... beware embedded null bytes! + * + * @param str url string to unescape + * @param len length of |str| + * @param flags only esc_OnlyNonASCII, esc_SkipControl and esc_AlwaysCopy + * are recognized + * @param result result buffer, untouched if |str| is already unescaped + * + * @return TRUE if unescaping was performed, FALSE otherwise. + */ +NS_COM PRBool NS_UnescapeURL(const char *str, + PRInt32 len, + PRInt16 flags, + nsACString &result); + +/** returns resultant string length **/ +inline PRInt32 NS_UnescapeURL(char *str) { return nsUnescapeCount(str); } + +/** + * string friendly versions... + */ +inline const nsACString & +NS_EscapeURL(const nsASingleFragmentCString &part, PRInt16 partType, nsACString &result) { + const char *temp; + if (NS_EscapeURL(part.BeginReading(temp), part.Length(), partType, result)) + return result; + return part; +} +inline const nsACString & +NS_UnescapeURL(const nsASingleFragmentCString &str, PRInt16 flags, nsACString &result) { + const char *temp; + if (NS_UnescapeURL(str.BeginReading(temp), str.Length(), flags, result)) + return result; + return str; +} +// inline unescape +inline nsAFlatCString & +NS_UnescapeURL(nsAFlatCString &str) +{ + str.SetLength(nsUnescapeCount(str.BeginWriting())); + return str; +} + +#endif // _ESCAPE_H_ |