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-rw-r--r--gfx/vr/service/openvr/src/strtools_public.cpp571
1 files changed, 571 insertions, 0 deletions
diff --git a/gfx/vr/service/openvr/src/strtools_public.cpp b/gfx/vr/service/openvr/src/strtools_public.cpp
new file mode 100644
index 0000000000..d9a3881995
--- /dev/null
+++ b/gfx/vr/service/openvr/src/strtools_public.cpp
@@ -0,0 +1,571 @@
+//========= Copyright Valve Corporation ============//
+#include "strtools_public.h"
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sstream>
+// Mozilla: see mozilla.patch for more details
+// #include <codecvt>
+#include <iostream>
+#include <functional>
+#include <locale>
+// #include <codecvt>
+
+#if defined( _WIN32 )
+#include <windows.h>
+#endif
+
+//-----------------------------------------------------------------------------
+// Purpose:
+//-----------------------------------------------------------------------------
+bool StringHasPrefix( const std::string & sString, const std::string & sPrefix )
+{
+ return 0 == strnicmp( sString.c_str(), sPrefix.c_str(), sPrefix.length() );
+}
+
+bool StringHasPrefixCaseSensitive( const std::string & sString, const std::string & sPrefix )
+{
+ return 0 == strncmp( sString.c_str(), sPrefix.c_str(), sPrefix.length() );
+}
+
+
+bool StringHasSuffix( const std::string &sString, const std::string &sSuffix )
+{
+ size_t cStrLen = sString.length();
+ size_t cSuffixLen = sSuffix.length();
+
+ if ( cSuffixLen > cStrLen )
+ return false;
+
+ std::string sStringSuffix = sString.substr( cStrLen - cSuffixLen, cSuffixLen );
+
+ return 0 == stricmp( sStringSuffix.c_str(), sSuffix.c_str() );
+}
+
+bool StringHasSuffixCaseSensitive( const std::string &sString, const std::string &sSuffix )
+{
+ size_t cStrLen = sString.length();
+ size_t cSuffixLen = sSuffix.length();
+
+ if ( cSuffixLen > cStrLen )
+ return false;
+
+ std::string sStringSuffix = sString.substr( cStrLen - cSuffixLen, cSuffixLen );
+
+ return 0 == strncmp( sStringSuffix.c_str(), sSuffix.c_str(),cSuffixLen );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+//-----------------------------------------------------------------------------
+// Mozilla: see mozilla.patch for more details
+//typedef std::codecvt_utf8< wchar_t > convert_type;
+
+// Mozilla: see mozilla.patch for more details
+#if defined( _WIN32 )
+std::string UTF16to8(const wchar_t * in)
+{
+ int retLength = ::WideCharToMultiByte(CP_UTF8, 0, in, -1, nullptr, 0, nullptr, nullptr);
+ if (retLength == 0)
+ {
+ return std::string();
+ }
+
+ char* retString = new char[retLength];
+ ::WideCharToMultiByte(CP_UTF8, 0, in, -1, retString, retLength, nullptr, nullptr);
+
+ std::string retStringValue(retString);
+
+ delete[] retString;
+
+ return retStringValue;
+
+ // static std::wstring_convert< convert_type, wchar_t > s_converter; // construction of this can be expensive (or even serialized) depending on locale
+
+ // try
+ // {
+ // return s_converter.to_bytes( in );
+ // }
+ // catch ( ... )
+ // {
+ // return std::string();
+ // }
+}
+
+std::string UTF16to8( const std::wstring & in ) { return UTF16to8( in.c_str() ); }
+
+// Mozilla: see mozilla.patch for more details
+std::wstring UTF8to16(const char * in)
+{
+ int retLength = ::MultiByteToWideChar(CP_UTF8, 0, in, -1, nullptr, 0);
+ if (retLength == 0)
+ {
+ return std::wstring();
+ }
+
+ wchar_t* retString = new wchar_t[retLength];
+ ::MultiByteToWideChar(CP_UTF8, 0, in, -1, retString, retLength);
+
+ std::wstring retStringValue(retString);
+
+ delete[] retString;
+
+ return retStringValue;
+
+ //static std::wstring_convert< convert_type, wchar_t > s_converter; // construction of this can be expensive (or even serialized) depending on locale
+
+ //try
+ //{
+ // return s_converter.from_bytes( in );
+ //}
+ //catch ( ... )
+ //{
+ // return std::wstring();
+ //}
+}
+
+std::wstring UTF8to16( const std::string & in ) { return UTF8to16( in.c_str() ); }
+#endif
+
+
+#if defined( _WIN32 )
+//-----------------------------------------------------------------------------
+// Purpose: Convert LPSTR in the default CodePage to UTF8
+//-----------------------------------------------------------------------------
+std::string DefaultACPtoUTF8( const char *pszStr )
+{
+ if ( GetACP() == CP_UTF8 )
+ {
+ return pszStr;
+ }
+ else
+ {
+ std::vector<wchar_t> vecBuf( strlen( pszStr ) + 1 ); // should be guaranteed to be enough
+ MultiByteToWideChar( CP_ACP, MB_PRECOMPOSED, pszStr, -1, vecBuf.data(), (int) vecBuf.size() );
+ return UTF16to8( vecBuf.data() );
+ }
+}
+#endif
+
+// --------------------------------------------------------------------
+// Purpose:
+// --------------------------------------------------------------------
+void strcpy_safe( char *pchBuffer, size_t unBufferSizeBytes, const char *pchSource )
+{
+ strncpy( pchBuffer, pchSource, unBufferSizeBytes - 1 );
+ pchBuffer[unBufferSizeBytes - 1] = '\0';
+}
+
+// --------------------------------------------------------------------
+// Purpose: converts a string to upper case
+// --------------------------------------------------------------------
+std::string StringToUpper( const std::string & sString )
+{
+ std::string sOut;
+ sOut.reserve( sString.size() + 1 );
+ for( std::string::const_iterator i = sString.begin(); i != sString.end(); i++ )
+ {
+ sOut.push_back( (char)toupper( *i ) );
+ }
+
+ return sOut;
+}
+
+
+// --------------------------------------------------------------------
+// Purpose: converts a string to lower case
+// --------------------------------------------------------------------
+std::string StringToLower( const std::string & sString )
+{
+ std::string sOut;
+ sOut.reserve( sString.size() + 1 );
+ for( std::string::const_iterator i = sString.begin(); i != sString.end(); i++ )
+ {
+ sOut.push_back( (char)tolower( *i ) );
+ }
+
+ return sOut;
+}
+
+
+uint32_t ReturnStdString( const std::string & sValue, char *pchBuffer, uint32_t unBufferLen )
+{
+ uint32_t unLen = (uint32_t)sValue.length() + 1;
+ if( !pchBuffer || !unBufferLen )
+ return unLen;
+
+ if( unBufferLen < unLen )
+ {
+ pchBuffer[0] = '\0';
+ }
+ else
+ {
+ memcpy( pchBuffer, sValue.c_str(), unLen );
+ }
+
+ return unLen;
+}
+
+
+/** Returns a std::string from a uint64_t */
+// Mozilla: see mozilla.patch for more details
+// std::string Uint64ToString( uint64_t ulValue )
+// {
+// char buf[ 22 ];
+// #if defined( _WIN32 )
+// sprintf_s( buf, "%llu", ulValue );
+// #else
+// snprintf( buf, sizeof( buf ), "%llu", (long long unsigned int ) ulValue );
+// #endif
+// return buf;
+// }
+
+
+/** returns a uint64_t from a string */
+uint64_t StringToUint64( const std::string & sValue )
+{
+ return strtoull( sValue.c_str(), NULL, 0 );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Helper for converting a numeric value to a hex digit, value should be 0-15.
+//-----------------------------------------------------------------------------
+char cIntToHexDigit( int nValue )
+{
+ //Assert( nValue >= 0 && nValue <= 15 );
+ return "0123456789ABCDEF"[ nValue & 15 ];
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Helper for converting a hex char value to numeric, return -1 if the char
+// is not a valid hex digit.
+//-----------------------------------------------------------------------------
+int iHexCharToInt( char cValue )
+{
+ int32_t iValue = cValue;
+ if ( (uint32_t)( iValue - '0' ) < 10 )
+ return iValue - '0';
+
+ iValue |= 0x20;
+ if ( (uint32_t)( iValue - 'a' ) < 6 )
+ return iValue - 'a' + 10;
+
+ return -1;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: These define the set of characters to filter for components (which
+// need all the escaping we can muster) vs. paths (which don't want
+// / and : escaped so we don't break less compliant URL handling code.
+//-----------------------------------------------------------------------------
+static bool CharNeedsEscape_Component( const char c )
+{
+ return (!(c >= 'a' && c <= 'z') && !(c >= 'A' && c <= 'Z') && !(c >= '0' && c <= '9')
+ && c != '-' && c != '_' && c != '.');
+}
+static bool CharNeedsEscape_FullPath( const char c )
+{
+ return (!(c >= 'a' && c <= 'z') && !(c >= 'A' && c <= 'Z') && !(c >= '0' && c <= '9')
+ && c != '-' && c != '_' && c != '.' && c != '/' && c != ':' );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Internal implementation of encode, works in the strict RFC manner, or
+// with spaces turned to + like HTML form encoding.
+//-----------------------------------------------------------------------------
+void V_URLEncodeInternal( char *pchDest, int nDestLen, const char *pchSource, int nSourceLen,
+ bool bUsePlusForSpace, std::function< bool(const char)> fnNeedsEscape )
+{
+ //AssertMsg( nDestLen > 3*nSourceLen, "Target buffer for V_URLEncode should be 3x source length, plus one for terminating null\n" );
+
+ int iDestPos = 0;
+ for ( int i=0; i < nSourceLen; ++i )
+ {
+ // worst case we need 3 additional chars
+ if( (iDestPos+3) > nDestLen )
+ {
+ pchDest[0] = '\0';
+// AssertMsg( false, "Target buffer too short\n" );
+ return;
+ }
+
+ // We allow only a-z, A-Z, 0-9, period, underscore, and hyphen to pass through unescaped.
+ // These are the characters allowed by both the original RFC 1738 and the latest RFC 3986.
+ // Current specs also allow '~', but that is forbidden under original RFC 1738.
+ if ( fnNeedsEscape( pchSource[i] ) )
+ {
+ if ( bUsePlusForSpace && pchSource[i] == ' ' )
+ {
+ pchDest[iDestPos++] = '+';
+ }
+ else
+ {
+ pchDest[iDestPos++] = '%';
+ uint8_t iValue = pchSource[i];
+ if ( iValue == 0 )
+ {
+ pchDest[iDestPos++] = '0';
+ pchDest[iDestPos++] = '0';
+ }
+ else
+ {
+ char cHexDigit1 = cIntToHexDigit( iValue % 16 );
+ iValue /= 16;
+ char cHexDigit2 = cIntToHexDigit( iValue );
+ pchDest[iDestPos++] = cHexDigit2;
+ pchDest[iDestPos++] = cHexDigit1;
+ }
+ }
+ }
+ else
+ {
+ pchDest[iDestPos++] = pchSource[i];
+ }
+ }
+
+ if( (iDestPos+1) > nDestLen )
+ {
+ pchDest[0] = '\0';
+ //AssertMsg( false, "Target buffer too short to terminate\n" );
+ return;
+ }
+
+ // Null terminate
+ pchDest[iDestPos++] = 0;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Internal implementation of decode, works in the strict RFC manner, or
+// with spaces turned to + like HTML form encoding.
+//
+// Returns the amount of space used in the output buffer.
+//-----------------------------------------------------------------------------
+size_t V_URLDecodeInternal( char *pchDecodeDest, int nDecodeDestLen, const char *pchEncodedSource, int nEncodedSourceLen, bool bUsePlusForSpace )
+{
+ if ( nDecodeDestLen < nEncodedSourceLen )
+ {
+ //AssertMsg( false, "V_URLDecode needs a dest buffer at least as large as the source" );
+ return 0;
+ }
+
+ int iDestPos = 0;
+ for( int i=0; i < nEncodedSourceLen; ++i )
+ {
+ if ( bUsePlusForSpace && pchEncodedSource[i] == '+' )
+ {
+ pchDecodeDest[ iDestPos++ ] = ' ';
+ }
+ else if ( pchEncodedSource[i] == '%' )
+ {
+ // Percent signifies an encoded value, look ahead for the hex code, convert to numeric, and use that
+
+ // First make sure we have 2 more chars
+ if ( i < nEncodedSourceLen - 2 )
+ {
+ char cHexDigit1 = pchEncodedSource[i+1];
+ char cHexDigit2 = pchEncodedSource[i+2];
+
+ // Turn the chars into a hex value, if they are not valid, then we'll
+ // just place the % and the following two chars direct into the string,
+ // even though this really shouldn't happen, who knows what bad clients
+ // may do with encoding.
+ bool bValid = false;
+ int iValue = iHexCharToInt( cHexDigit1 );
+ if ( iValue != -1 )
+ {
+ iValue *= 16;
+ int iValue2 = iHexCharToInt( cHexDigit2 );
+ if ( iValue2 != -1 )
+ {
+ iValue += iValue2;
+ pchDecodeDest[ iDestPos++ ] = (char)iValue;
+ bValid = true;
+ }
+ }
+
+ if ( !bValid )
+ {
+ pchDecodeDest[ iDestPos++ ] = '%';
+ pchDecodeDest[ iDestPos++ ] = cHexDigit1;
+ pchDecodeDest[ iDestPos++ ] = cHexDigit2;
+ }
+ }
+
+ // Skip ahead
+ i += 2;
+ }
+ else
+ {
+ pchDecodeDest[ iDestPos++ ] = pchEncodedSource[i];
+ }
+ }
+
+ // We may not have extra room to NULL terminate, since this can be used on raw data, but if we do
+ // go ahead and do it as this can avoid bugs.
+ if ( iDestPos < nDecodeDestLen )
+ {
+ pchDecodeDest[iDestPos] = 0;
+ }
+
+ return (size_t)iDestPos;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Encodes a string (or binary data) from URL encoding format, see rfc1738 section 2.2.
+// This version of the call isn't a strict RFC implementation, but uses + for space as is
+// the standard in HTML form encoding, despite it not being part of the RFC.
+//
+// Dest buffer should be at least as large as source buffer to guarantee room for decode.
+//-----------------------------------------------------------------------------
+void V_URLEncode( char *pchDest, int nDestLen, const char *pchSource, int nSourceLen )
+{
+ return V_URLEncodeInternal( pchDest, nDestLen, pchSource, nSourceLen, true, CharNeedsEscape_Component );
+}
+
+
+void V_URLEncodeNoPlusForSpace( char *pchDest, int nDestLen, const char *pchSource, int nSourceLen )
+{
+ return V_URLEncodeInternal( pchDest, nDestLen, pchSource, nSourceLen, false, CharNeedsEscape_Component );
+}
+
+void V_URLEncodeFullPath( char *pchDest, int nDestLen, const char *pchSource, int nSourceLen )
+{
+ return V_URLEncodeInternal( pchDest, nDestLen, pchSource, nSourceLen, false, CharNeedsEscape_FullPath );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Decodes a string (or binary data) from URL encoding format, see rfc1738 section 2.2.
+// This version of the call isn't a strict RFC implementation, but uses + for space as is
+// the standard in HTML form encoding, despite it not being part of the RFC.
+//
+// Dest buffer should be at least as large as source buffer to guarantee room for decode.
+// Dest buffer being the same as the source buffer (decode in-place) is explicitly allowed.
+//-----------------------------------------------------------------------------
+size_t V_URLDecode( char *pchDecodeDest, int nDecodeDestLen, const char *pchEncodedSource, int nEncodedSourceLen )
+{
+ return V_URLDecodeInternal( pchDecodeDest, nDecodeDestLen, pchEncodedSource, nEncodedSourceLen, true );
+}
+
+size_t V_URLDecodeNoPlusForSpace( char *pchDecodeDest, int nDecodeDestLen, const char *pchEncodedSource, int nEncodedSourceLen )
+{
+ return V_URLDecodeInternal( pchDecodeDest, nDecodeDestLen, pchEncodedSource, nEncodedSourceLen, false );
+}
+
+//-----------------------------------------------------------------------------
+void V_StripExtension( std::string &in )
+{
+ // Find the last dot. If it's followed by a dot or a slash, then it's part of a
+ // directory specifier like ../../somedir/./blah.
+ std::string::size_type test = in.rfind( '.' );
+ if ( test != std::string::npos )
+ {
+ // This handles things like ".\blah" or "c:\my@email.com\abc\def\geh"
+ // Which would otherwise wind up with "" and "c:\my@email", respectively.
+ if ( in.rfind( '\\' ) < test && in.rfind( '/' ) < test )
+ {
+ in.resize( test );
+ }
+ }
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Tokenizes a string into a vector of strings
+//-----------------------------------------------------------------------------
+std::vector<std::string> TokenizeString( const std::string & sString, char cToken )
+{
+ std::vector<std::string> vecStrings;
+ std::istringstream stream( sString );
+ std::string s;
+ while ( std::getline( stream, s, cToken ) )
+ {
+ vecStrings.push_back( s );
+ }
+ return vecStrings;
+}
+
+// Mozilla: see mozilla.patch for more details
+//-----------------------------------------------------------------------------
+// Purpose: Repairs a should-be-UTF-8 string to a for-sure-is-UTF-8 string, plus return boolean if we subbed in '?' somewhere
+//-----------------------------------------------------------------------------
+// bool RepairUTF8( const char *pbegin, const char *pend, std::string & sOutputUtf8 )
+// {
+// typedef std::codecvt_utf8<char32_t> facet_type;
+// facet_type myfacet;
+
+// std::mbstate_t mystate = std::mbstate_t();
+
+// sOutputUtf8.clear();
+// sOutputUtf8.reserve( pend - pbegin );
+// bool bSqueakyClean = true;
+
+// const char *pmid = pbegin;
+// while ( pmid != pend )
+// {
+// bool bHasError = false;
+// bool bHasValidData = false;
+
+// char32_t out = 0xdeadbeef, *pout;
+// pbegin = pmid;
+// switch ( myfacet.in( mystate, pbegin, pend, pmid, &out, &out + 1, pout ) )
+// {
+// case facet_type::ok:
+// bHasValidData = true;
+// break;
+
+// case facet_type::noconv:
+// // unexpected! always converting type
+// bSqueakyClean = false;
+// break;
+
+// case facet_type::partial:
+// bHasError = pbegin == pmid;
+// if ( bHasError )
+// {
+// bSqueakyClean = false;
+// }
+// else
+// {
+// bHasValidData = true;
+// }
+// break;
+
+// case facet_type::error:
+// bHasError = true;
+// bSqueakyClean = false;
+// break;
+// }
+
+// if ( bHasValidData )
+// {
+// // could convert back, but no need
+// for ( const char *p = pbegin; p != pmid; ++p )
+// {
+// sOutputUtf8 += *p;
+// }
+// }
+
+// if ( bHasError )
+// {
+// sOutputUtf8 += '?';
+// }
+
+// if ( pmid == pbegin )
+// {
+// pmid++;
+// }
+// }
+
+// return bSqueakyClean;
+// }
+
+// //-----------------------------------------------------------------------------
+// // Purpose: Repairs a should-be-UTF-8 string to a for-sure-is-UTF-8 string, plus return boolean if we subbed in '?' somewhere
+// //-----------------------------------------------------------------------------
+// bool RepairUTF8( const std::string & sInputUtf8, std::string & sOutputUtf8 )
+// {
+// return RepairUTF8( sInputUtf8.data(), sInputUtf8.data() + sInputUtf8.size(), sOutputUtf8 );
+// }
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