The Tor Browser: xpcom/glue/nsCRTGlue.cpp@129ffea94266 (annotated)

xpcom/glue/nsCRTGlue.cpp@129ffea94266 (annotated)

xpcom/glue/nsCRTGlue.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "nsCRTGlue.h"
 #include "nsXPCOM.h"
 #include "nsDebug.h"
 #include "prtime.h"
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 #include <stdarg.h>
 #ifdef XP_WIN
 #include <io.h>
 #include <windows.h>
 #endif
 #ifdef ANDROID
 #include <android/log.h>
 #endif
 const char*
 NS_strspnp(const char *delims, const char *str)
 {
   const char *d;
   do {
     for (d = delims; *d != '\0'; ++d) {
       if (*str == *d) {
         ++str;
         break;
       }
     }
   } while (*d);
   return str;
 }
 char*
 NS_strtok(const char *delims, char **str)
 {
   if (!*str)
     return nullptr;
   char *ret = (char*) NS_strspnp(delims, *str);
   if (!*ret) {
     *str = ret;
     return nullptr;
   }
   char *i = ret;
   do {
     for (const char *d = delims; *d != '\0'; ++d) {
       if (*i == *d) {
         *i = '\0';
         *str = ++i;
         return ret;
       }
     }
     ++i;
   } while (*i);
   *str = nullptr;
   return ret;
 }
 uint32_t
 NS_strlen(const char16_t *aString)
 {
   const char16_t *end;
   for (end = aString; *end; ++end) {
     // empty loop
   }
   return end - aString;
 }
 int
 NS_strcmp(const char16_t *a, const char16_t *b)
 {
   while (*b) {
     int r = *a - *b;
     if (r)
       return r;
     ++a;
     ++b;
   }
   return *a != '\0';
 }
 char16_t*
 NS_strdup(const char16_t *aString)
 {
   uint32_t len = NS_strlen(aString);
   return NS_strndup(aString, len);
 }
 char16_t*
 NS_strndup(const char16_t *aString, uint32_t aLen)
 {
   char16_t *newBuf = (char16_t*) NS_Alloc((aLen + 1) * sizeof(char16_t));
   if (newBuf) {
     memcpy(newBuf, aString, aLen * sizeof(char16_t));
     newBuf[aLen] = '\0';
   }
   return newBuf;
 }
 char*
 NS_strdup(const char *aString)
 {
   uint32_t len = strlen(aString);
   char *str = (char*) NS_Alloc(len + 1);
   if (str) {
     memcpy(str, aString, len);
     str[len] = '\0';
   }
   return str;
 }
 // This table maps uppercase characters to lower case characters;
 // characters that are neither upper nor lower case are unaffected.
 const unsigned char nsLowerUpperUtils::kUpper2Lower[256] = {
 ,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 , 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
 , 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
 , 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
 ,
     // upper band mapped to lower [A-Z] => [a-z]
 , 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
 ,113,114,115,116,117,118,119,120,121,122,
 , 92, 93, 94, 95,
 , 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
 ,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,
 ,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
 ,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
 ,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
 ,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
 ,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
 ,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
 ,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
 ,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
 };
 const unsigned char nsLowerUpperUtils::kLower2Upper[256] = {
 ,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 , 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
 , 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
 , 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
 , 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
 , 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
 ,
     // lower band mapped to upper [a-z] => [A-Z]
 , 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
 , 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,
 ,124,125,126,127,
 ,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
 ,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
 ,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
 ,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
 ,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
 ,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
 ,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
 ,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
 };
 bool NS_IsUpper(char aChar)
 {
   return aChar != (char)nsLowerUpperUtils::kUpper2Lower[(unsigned char)aChar];
 }
 bool NS_IsLower(char aChar)
 {
   return aChar != (char)nsLowerUpperUtils::kLower2Upper[(unsigned char)aChar];
 }
 bool NS_IsAscii(char16_t aChar)
 {
   return (0x0080 > aChar);
 }
 bool NS_IsAscii(const char16_t *aString)
 {
   while(*aString) {
     if( 0x0080 <= *aString)
       return false;
     aString++;
   }
   return true;
 }
 bool NS_IsAscii(const char *aString)
 {
   while(*aString) {
     if( 0x80 & *aString)
       return false;
     aString++;
   }
   return true;
 }
 bool NS_IsAscii(const char* aString, uint32_t aLength)
 {
   const char* end = aString + aLength;
   while (aString < end) {
     if (0x80 & *aString)
       return false;
     ++aString;
   }
   return true;
 }
 bool NS_IsAsciiAlpha(char16_t aChar)
 {
   return ((aChar >= 'A') && (aChar <= 'Z')) ||
          ((aChar >= 'a') && (aChar <= 'z'));
 }
 bool NS_IsAsciiWhitespace(char16_t aChar)
 {
   return aChar == ' ' ||
          aChar == '\r' ||
          aChar == '\n' ||
          aChar == '\t';
 }
 bool NS_IsAsciiDigit(char16_t aChar)
 {
   return aChar >= '0' && aChar <= '9';
 }
 #ifndef XPCOM_GLUE_AVOID_NSPR
 #define TABLE_SIZE 36
 static const char table[] = {
   'a','b','c','d','e','f','g','h','i','j',
   'k','l','m','n','o','p','q','r','s','t',
   'u','v','w','x','y','z','0','1','2','3',
   '4','5','6','7','8','9'
 };
 void NS_MakeRandomString(char *aBuf, int32_t aBufLen)
 {
   // turn PR_Now() into milliseconds since epoch
   // and salt rand with that.
   static unsigned int seed = 0;
   if (seed == 0) {
     double fpTime = double(PR_Now());
     seed = (unsigned int)(fpTime * 1e-6 + 0.5); // use 1e-6, granularity of PR_Now() on the mac is seconds
     srand(seed);
   }
   int32_t i;
   for (i=0;i<aBufLen;i++) {
     *aBuf++ = table[rand()%TABLE_SIZE];
   }
   *aBuf = 0;
 }
 #endif
 #if defined(XP_WIN)
 #define va_copy(dest, src) (dest = src)
 void
 vprintf_stderr(const char *fmt, va_list args)
 {
   if (IsDebuggerPresent()) {
     char buf[2048];
     va_list argsCpy;
     va_copy(argsCpy, args);
     vsnprintf(buf, sizeof(buf), fmt, argsCpy);
     buf[sizeof(buf) - 1] = '\0';
     va_end(argsCpy);
     OutputDebugStringA(buf);
   }
   FILE *fp = _fdopen(_dup(2), "a");
   if (!fp)
       return;
   vfprintf(fp, fmt, args);
   fclose(fp);
 }
 #undef va_copy
 #elif defined(ANDROID)
 void
 vprintf_stderr(const char *fmt, va_list args)
 {
   __android_log_vprint(ANDROID_LOG_INFO, "Gecko", fmt, args);
 }
 #else
 void
 vprintf_stderr(const char *fmt, va_list args)
 {
   vfprintf(stderr, fmt, args);
 }
 #endif
 void
 printf_stderr(const char *fmt, ...)
 {
   va_list args;
   va_start(args, fmt);
   vprintf_stderr(fmt, args);
   va_end(args);
 }
 void
 fprintf_stderr(FILE* aFile, const char *fmt, ...)
 {
   va_list args;
   va_start(args, fmt);
   if (aFile == stderr) {
     vprintf_stderr(fmt, args);
   } else {
     vfprintf(aFile, fmt, args);
   }
   va_end(args);
 }

The Tor Browser / annotate

xpcom/glue/nsCRTGlue.cpp@129ffea94266 (annotated)

xpcom/glue/nsCRTGlue.cpp