src/base/utility/FBaseUtilUrlEncoder.cpp

   1 //
   2 // Open Service Platform
   3 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
   4 //
   5 // Licensed under the Apache License, Version 2.0 (the License);
   6 // you may not use this file except in compliance with the License.
   7 // You may obtain a copy of the License at
   8 //
   9 // http://www.apache.org/licenses/LICENSE-2.0
  10 //
  11 // Unless required by applicable law or agreed to in writing, software
  12 // distributed under the License is distributed on an "AS IS" BASIS,
  13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 // See the License for the specific language governing permissions and
  15 // limitations under the License.
  16 //
  17
  18 /**
  19  * @file                FBaseUtilUrlEncoder.cpp
  20  * @brief               This is the implementation file for UrlEncoder class.
  21  */
  22
  23 // Includes
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <wchar.h>
  27 #include <string.h>
  28 #include <new>
  29 #include <unique_ptr.h>
  30 #include <unicode/ustring.h>
  31 #include <unicode/utypes.h>
  32 #include <unicode/ucnv.h>
  33 #include <FBaseUtilUrlEncoder.h>
  34 #include <FBaseResult.h>
  35 #include <FBaseSysLog.h>
  36 #include "FBase_StringConverter.h"
  37 #include "FBase_NativeError.h"
  38 #include "FBaseUtil_IcuConverter.h"
  39
  40
  41 namespace Tizen { namespace Base { namespace Utility
  42 {
  43
  44
  45 ///////////////////////////////////////////////////////////////////////////////
  46 /// UrlEncoder class lifecycle
  47
  48 UrlEncoder::UrlEncoder(void)
  49 {
  50 }
  51
  52
  53 UrlEncoder::~UrlEncoder(void)
  54 {
  55 }
  56
  57
  58 ///////////////////////////////////////////////////////////////////////////////
  59 /// UrlEncoder class Operations
  60
  61 result
  62 UrlEncoder::Encode(const Tizen::Base::String& str, const Tizen::Base::String& encodingScheme, Tizen::Base::String& encodedStr)
  63 {
  64         SysTryReturnResult(NID_BASE_UTIL, str.GetLength() > 0, E_INVALID_ARG, "Invalid argument is used. String to be encoded is empty.");
  65         SysTryReturnResult(NID_BASE_UTIL, encodingScheme.GetLength() > 0, E_INVALID_ARG, "Invalid argument is used. Invalid encoding scheme.");
  66
  67         _ICUConverter converter;
  68         bool converted = converter.OpenConverter(encodingScheme);
  69         result r = GetLastResult();
  70         SysTryReturnResult(NID_BASE_UTIL, converted, r, "Propagating.");
  71
  72         int startIndex = -1;
  73         std::unique_ptr< char[] > pOutBuf(null);
  74         const wchar_t* pTmpBytePtr = str.GetPointer();
  75         encodedStr.Clear();
  76         int strLen = str.GetLength();
  77
  78         for (int i = 0; i < strLen; i++)
  79         {
  80                 // Do not convert unreserved characters (Unreserved Characters for URI in RFC 3986)
  81                 if ((pTmpBytePtr[i] >= 'a' && pTmpBytePtr[i] <= 'z') || (pTmpBytePtr[i] >= 'A' && pTmpBytePtr[i] <= 'Z') || (pTmpBytePtr[i] >= '0' && pTmpBytePtr[i] <= '9') || (pTmpBytePtr[i] == '_') || (pTmpBytePtr[i] == '~') || (pTmpBytePtr[i] == '-') || (pTmpBytePtr[i] == '.') || (pTmpBytePtr[i] == ' '))
  82                 {
  83                         if (startIndex >= 0)
  84                         {
  85                                 int retLength = 0;
  86                                 pOutBuf.reset(converter.ConvertFromUcharN(pTmpBytePtr + startIndex, (i - startIndex), retLength));
  87                                 r = GetLastResult();
  88                                 SysTryReturnResult(NID_BASE_UTIL, pOutBuf != null, r, "Propagating.");
  89
  90                                 for (int j = 0; j < retLength; j++)
  91                                 {
  92
  93                                         char hexChar[4];
  94                                         memset(&hexChar, 0x00, 4);
  95                                         sprintf(hexChar, "%%%02X", (unsigned char) pOutBuf[j]);
  96                                         hexChar[3] = 0;
  97                                         encodedStr.Append(hexChar); // Append %ab  buffer to encoded string
  98                                 }
  99                                 startIndex = -1;
 100                         }
 101
 102                         (pTmpBytePtr[i] == ' ') ? encodedStr.Append('+'):encodedStr.Append(pTmpBytePtr[i]);
 103                 }
 104                 else if (startIndex < 0)
 105                 {
 106                         startIndex = i;
 107                 }
 108         }
 109
 110         if (startIndex >= 0)
 111         {
 112                 int retLength = 0;
 113                 pOutBuf.reset(converter.ConvertFromUcharN(pTmpBytePtr + startIndex, (str.GetLength() - startIndex), retLength));
 114                 r = GetLastResult();
 115                 SysTryReturnResult(NID_BASE_UTIL, pOutBuf != null, r, GetErrorMessage(r));
 116
 117                 for (int j = 0; j < retLength; j++)
 118                 {
 119
 120                         char hexChar[4];
 121                         memset(&hexChar, 0x00, 4);
 122                         sprintf(hexChar, "%%%02X", (unsigned char) pOutBuf[j]);
 123                         hexChar[3] = 0;
 124                         encodedStr.Append(hexChar); // Append %ab  buffer to encoded string
 125                 }
 126                 startIndex = -1;
 127         }
 128
 129         converter.CloseConverter();
 130         return r;
 131 }
 132 } } } // Tizen::Base::Utility