mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-25 11:15:34 +00:00
0d2808c511
Moved nsFileSpec and related classes into this obsolete library. Moved nsRegistry and related libreg functionality into the obsolete library. Updated many callers using the obsolete nsFile spec to use nsIFile and Necko to do file IO. Combined the following DLLs (source -> dest) uriloader -> docshell shistory -> docshell jsurl -> jsdom gkview -> gklayout Moved nsAdapterEnumerator out of xpcom/ds and into mailnews, since they're the only consumer Modifed the xpt_link tool so that you can specify a �only include� cid list that can mask CID�s that you are not interested in. Added build options: Prevent the building of xpinstall (--disable-xpinstall) Prevent the building js component loader (--disable-jsloader) A build option to only build a single profile (--enable-single-profile) A build flag to only built the required xpfe components (--disable-xpfe-components). Removal or hiding of unused functions and classes including nsEscape*, nsDequeIterator, nsRecyclingAllocatorImpl, nsDiscriminatedUnion, nsOpaqueKey, nsCRT::strlen, NS_NewCommandLineService Bug 194240, r/sr = darin, alec.
472 lines
14 KiB
C++
472 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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// First checked in on 98/12/03 by John R. McMullen, derived from net.h/mkparse.c.
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#include "nsEscape.h"
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#include "nsMemory.h"
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#include "nsCRT.h"
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#include "nsReadableUtils.h"
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const int netCharType[256] =
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/* Bit 0 xalpha -- the alphas
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** Bit 1 xpalpha -- as xalpha but
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** converts spaces to plus and plus to %20
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** Bit 3 ... path -- as xalphas but doesn't escape '/'
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*/
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/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
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{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1x */
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0,0,0,0,0,0,0,0,0,0,7,4,0,7,7,4, /* 2x !"#$%&'()*+,-./ */
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7,7,7,7,7,7,7,7,7,7,0,0,0,0,0,0, /* 3x 0123456789:;<=>? */
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0,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, /* 4x @ABCDEFGHIJKLMNO */
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/* bits for '@' changed from 7 to 0 so '@' can be escaped */
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/* in usernames and passwords in publishing. */
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7,7,7,7,7,7,7,7,7,7,7,0,0,0,0,7, /* 5X PQRSTUVWXYZ[\]^_ */
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0,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, /* 6x `abcdefghijklmno */
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7,7,7,7,7,7,7,7,7,7,7,0,0,0,0,0, /* 7X pqrstuvwxyz{\}~ DEL */
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0, };
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/* decode % escaped hex codes into character values
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*/
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#define UNHEX(C) \
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((C >= '0' && C <= '9') ? C - '0' : \
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((C >= 'A' && C <= 'F') ? C - 'A' + 10 : \
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((C >= 'a' && C <= 'f') ? C - 'a' + 10 : 0)))
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#define IS_OK(C) (netCharType[((unsigned int) (C))] & (mask))
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#define HEX_ESCAPE '%'
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//----------------------------------------------------------------------------------------
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static char* nsEscapeCount(
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const char * str,
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PRInt32 len,
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nsEscapeMask mask,
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PRInt32* out_len)
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//----------------------------------------------------------------------------------------
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{
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if (!str)
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return 0;
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int i, extra = 0;
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static const char hexChars[] = "0123456789ABCDEF";
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register const unsigned char* src = (const unsigned char *) str;
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for (i = 0; i < len; i++)
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{
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if (!IS_OK(*src++))
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extra += 2; /* the escape, plus an extra byte for each nibble */
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}
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char* result = (char *)nsMemory::Alloc(len + extra + 1);
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if (!result)
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return 0;
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register unsigned char* dst = (unsigned char *) result;
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src = (const unsigned char *) str;
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if (mask == url_XPAlphas)
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{
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for (i = 0; i < len; i++)
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{
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unsigned char c = *src++;
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if (IS_OK(c))
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*dst++ = c;
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else if (c == ' ')
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*dst++ = '+'; /* convert spaces to pluses */
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else
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{
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*dst++ = HEX_ESCAPE;
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*dst++ = hexChars[c >> 4]; /* high nibble */
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*dst++ = hexChars[c & 0x0f]; /* low nibble */
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}
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}
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}
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else
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{
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for (i = 0; i < len; i++)
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{
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unsigned char c = *src++;
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if (IS_OK(c))
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*dst++ = c;
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else
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{
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*dst++ = HEX_ESCAPE;
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*dst++ = hexChars[c >> 4]; /* high nibble */
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*dst++ = hexChars[c & 0x0f]; /* low nibble */
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}
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}
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}
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*dst = '\0'; /* tack on eos */
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if(out_len)
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*out_len = dst - (unsigned char *) result;
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return result;
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}
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//----------------------------------------------------------------------------------------
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NS_COM char* nsEscape(const char * str, nsEscapeMask mask)
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//----------------------------------------------------------------------------------------
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{
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if(!str)
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return NULL;
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return nsEscapeCount(str, (PRInt32)strlen(str), mask, NULL);
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}
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//----------------------------------------------------------------------------------------
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NS_COM char* nsUnescape(char * str)
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//----------------------------------------------------------------------------------------
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{
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nsUnescapeCount(str);
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return str;
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}
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//----------------------------------------------------------------------------------------
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NS_COM PRInt32 nsUnescapeCount(char * str)
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//----------------------------------------------------------------------------------------
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{
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register char *src = str;
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register char *dst = str;
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static const char hexChars[] = "0123456789ABCDEFabcdef";
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char c1[] = " ";
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char c2[] = " ";
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char* const pc1 = c1;
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char* const pc2 = c2;
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while (*src)
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{
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c1[0] = *(src+1);
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if (*(src+1) == '\0')
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c2[0] = '\0';
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else
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c2[0] = *(src+2);
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if (*src != HEX_ESCAPE || PL_strpbrk(pc1, hexChars) == 0 ||
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PL_strpbrk(pc2, hexChars) == 0 )
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*dst++ = *src++;
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else
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{
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src++; /* walk over escape */
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if (*src)
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{
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*dst = UNHEX(*src) << 4;
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src++;
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}
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if (*src)
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{
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*dst = (*dst + UNHEX(*src));
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src++;
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}
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dst++;
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}
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}
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*dst = 0;
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return (int)(dst - str);
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} /* NET_UnEscapeCnt */
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NS_COM char *
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nsEscapeHTML(const char * string)
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{
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char *rv = (char *) nsMemory::Alloc(strlen(string)*6 + 1); /* The +1 is for the trailing null! */
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char *ptr = rv;
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if(rv)
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{
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for(; *string != '\0'; string++)
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{
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if(*string == '<')
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{
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*ptr++ = '&';
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*ptr++ = 'l';
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*ptr++ = 't';
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*ptr++ = ';';
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}
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else if(*string == '>')
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{
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*ptr++ = '&';
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*ptr++ = 'g';
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*ptr++ = 't';
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*ptr++ = ';';
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}
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else if(*string == '&')
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{
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*ptr++ = '&';
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*ptr++ = 'a';
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*ptr++ = 'm';
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*ptr++ = 'p';
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*ptr++ = ';';
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}
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else if (*string == '"')
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{
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*ptr++ = '&';
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*ptr++ = 'q';
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*ptr++ = 'u';
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*ptr++ = 'o';
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*ptr++ = 't';
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*ptr++ = ';';
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}
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else
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{
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*ptr++ = *string;
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}
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}
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*ptr = '\0';
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}
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return(rv);
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}
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NS_COM PRUnichar *
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nsEscapeHTML2(const PRUnichar *aSourceBuffer, PRInt32 aSourceBufferLen)
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{
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// if the caller didn't calculate the length
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if (aSourceBufferLen == -1) {
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aSourceBufferLen = nsCRT::strlen(aSourceBuffer); // ...then I will
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}
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PRUnichar *resultBuffer = (PRUnichar *)nsMemory::Alloc(aSourceBufferLen*6*sizeof(PRUnichar) + sizeof(PRUnichar('\0')));
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PRUnichar *ptr = resultBuffer;
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if (resultBuffer) {
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PRInt32 i;
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for(i = 0; i < aSourceBufferLen; i++) {
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if(aSourceBuffer[i] == '<') {
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*ptr++ = '&';
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*ptr++ = 'l';
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*ptr++ = 't';
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*ptr++ = ';';
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} else if(aSourceBuffer[i] == '>') {
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*ptr++ = '&';
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*ptr++ = 'g';
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*ptr++ = 't';
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*ptr++ = ';';
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} else if(aSourceBuffer[i] == '&') {
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*ptr++ = '&';
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*ptr++ = 'a';
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*ptr++ = 'm';
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*ptr++ = 'p';
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*ptr++ = ';';
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} else if (aSourceBuffer[i] == '"') {
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*ptr++ = '&';
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*ptr++ = 'q';
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*ptr++ = 'u';
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*ptr++ = 'o';
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*ptr++ = 't';
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*ptr++ = ';';
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} else {
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*ptr++ = aSourceBuffer[i];
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}
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}
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*ptr = 0;
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}
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return resultBuffer;
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}
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//----------------------------------------------------------------------------------------
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const int EscapeChars[256] =
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/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
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{
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 1x */
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0,1023, 0, 512,1023, 0,1023,1023,1023,1023,1023,1023,1023,1023, 959, 784, /* 2x !"#$%&'()*+,-./ */
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1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1008, 912, 0,1008, 0, 768, /* 3x 0123456789:;<=>? */
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1008,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023, /* 4x @ABCDEFGHIJKLMNO */
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1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023, 896, 896, 896, 896,1023, /* 5x PQRSTUVWXYZ[\]^_ */
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0,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023, /* 6x `abcdefghijklmno */
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1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023, 896,1012, 896,1023, 0, /* 7x pqrstuvwxyz{|}~ */
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0 /* 8x DEL */
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};
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#define NO_NEED_ESC(C) (EscapeChars[((unsigned int) (C))] & (mask))
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//----------------------------------------------------------------------------------------
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/* returns an escaped string */
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/* use the following masks to specify which
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part of an URL you want to escape:
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esc_Scheme = 1
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esc_Username = 2
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esc_Password = 4
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esc_Host = 8
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esc_Directory = 16
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esc_FileBaseName = 32
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esc_FileExtension = 64
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esc_Param = 128
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esc_Query = 256
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esc_Ref = 512
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*/
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/* by default this function will not escape parts of a string
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that already look escaped, which means it already includes
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a valid hexcode. This is done to avoid multiple escapes of
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a string. Use the following mask to force escaping of a
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string:
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esc_Forced = 1024
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*/
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NS_COM PRBool NS_EscapeURL(const char *part,
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PRInt32 partLen,
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PRInt16 mask,
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nsACString &result)
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{
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if (!part) {
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NS_NOTREACHED("null pointer");
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return PR_FALSE;
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}
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int i = 0;
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static const char hexChars[] = "0123456789ABCDEF";
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if (partLen < 0)
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partLen = strlen(part);
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PRBool forced = (mask & esc_Forced);
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PRBool ignoreNonAscii = (mask & esc_OnlyASCII);
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PRBool ignoreAscii = (mask & esc_OnlyNonASCII);
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PRBool writing = (mask & esc_AlwaysCopy);
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PRBool colon = (mask & esc_Colon);
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register const unsigned char* src = (const unsigned char *) part;
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char tempBuffer[100];
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unsigned int tempBufferPos = 0;
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for (i = 0; i < partLen; i++)
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{
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unsigned char c = *src++;
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// if the char has not to be escaped or whatever follows % is
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// a valid escaped string, just copy the char.
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//
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// Also the % will not be escaped until forced
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// See bugzilla bug 61269 for details why we changed this
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//
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// And, we will not escape non-ascii characters if requested.
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// On special request we will also escape the colon even when
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// not covered by the matrix
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if ((NO_NEED_ESC(c) || (c == HEX_ESCAPE && !forced)
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|| (c > 0x7f && ignoreNonAscii)
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|| (c < 0x80 && ignoreAscii))
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&& !(c == ':' && colon))
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{
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if (writing)
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tempBuffer[tempBufferPos++] = c;
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}
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else /* do the escape magic */
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{
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if (!writing)
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{
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result.Append(part, i);
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writing = PR_TRUE;
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}
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tempBuffer[tempBufferPos++] = HEX_ESCAPE;
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tempBuffer[tempBufferPos++] = hexChars[c >> 4]; /* high nibble */
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tempBuffer[tempBufferPos++] = hexChars[c & 0x0f]; /* low nibble */
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}
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if (tempBufferPos >= sizeof(tempBuffer) - 4)
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{
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NS_ASSERTION(writing, "should be writing");
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tempBuffer[tempBufferPos] = '\0';
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result += tempBuffer;
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tempBufferPos = 0;
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}
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}
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if (writing) {
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tempBuffer[tempBufferPos] = '\0';
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result += tempBuffer;
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}
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return writing;
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}
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#define ISHEX(c) memchr(hexChars, c, sizeof(hexChars)-1)
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NS_COM PRBool NS_UnescapeURL(const char *str, PRInt32 len, PRInt16 flags, nsACString &result)
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{
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if (!str) {
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NS_NOTREACHED("null pointer");
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return PR_FALSE;
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}
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if (len < 0)
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len = strlen(str);
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PRBool ignoreNonAscii = (flags & esc_OnlyASCII);
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PRBool writing = (flags & esc_AlwaysCopy);
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static const char hexChars[] = "0123456789ABCDEFabcdef";
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const char *last = str;
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const char *p = str;
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for (int i=0; i<len; ++i, ++p) {
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//printf("%c [i=%d of len=%d]\n", *p, i, len);
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if (*p == HEX_ESCAPE && i < len-2) {
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unsigned char *p1 = ((unsigned char *) p) + 1;
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unsigned char *p2 = ((unsigned char *) p) + 2;
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if (ISHEX(*p1) && ISHEX(*p2) && !(ignoreNonAscii && *p1 >= '8')) {
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//printf("- p1=%c p2=%c\n", *p1, *p2);
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writing = PR_TRUE;
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if (p > last) {
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//printf("- p=%p, last=%p\n", p, last);
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result.Append(last, p - last);
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last = p;
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}
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char u = (UNHEX(*p1) << 4) + UNHEX(*p2);
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//printf("- u=%c\n", u);
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result.Append(u);
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i += 2;
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p += 2;
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last += 3;
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}
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}
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}
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if (writing && last < str + len)
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result.Append(last, str + len - last);
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return writing;
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}
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