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1 // Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 /** |
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16 * @file |
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17 * @publishedAll |
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18 * @released |
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19 */ |
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20 |
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21 #if !defined(__IMCVCODC_H__) |
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22 #define __IMCVCODC_H__ |
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23 |
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24 #include <s32buf.h> |
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25 #include <s32stor.h> |
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26 #include <txtrich.h> |
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27 #include <miutatch.h> |
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28 #include <miutconv.h> |
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29 #include <miuthdr.h> |
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30 #include <mentact.h> // CMsgActive |
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31 |
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32 #include <imcvdata.h> |
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33 #include <imcvtext.h> |
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34 #include <imutdll.h> |
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35 |
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36 #define KBase64 _L("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=") |
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37 #define KCharFormat _L("%c") |
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38 |
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39 // Shared implementation code |
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40 //---------------------------------------------------------------------------------------- |
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41 class TImCodec |
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42 //---------------------------------------------------------------------------------------- |
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43 /** |
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44 @publishedAll |
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45 @released |
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46 */ |
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47 { |
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48 protected: |
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49 // base64 and UU coding defines. |
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50 enum EMaskValues{ ESixBitMask = 0x3F, EEightBitMask = 0xFF }; |
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51 enum EMaskShiftValues{ ESix = 6, EFour = 4, ETwo = 2, EZero = 0 }; |
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52 |
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53 public: |
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54 virtual TInt Encode( const TDesC8& aSrcString, TDes8& rDestString)=0 ; |
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55 virtual TBool Decode( const TDesC8& aInputLine, TDes8& rOutputLine)=0; |
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56 |
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57 protected: |
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58 // TImCodec(); |
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59 inline TBool IsDigit( TChar aChar ); |
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60 }; |
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61 |
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62 |
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63 // Interface for sending file data. |
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64 //---------------------------------------------------------------------------------------- |
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65 class TImFileCodec : public TImCodec |
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66 //---------------------------------------------------------------------------------------- |
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67 /** |
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68 @publishedAll |
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69 @released |
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70 */ |
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71 { |
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72 public: |
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73 virtual TInt PrefixNextLineL( TDes8& rOutputLine, const TFileName& aName, TInt& rPaddingCount ); |
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74 virtual TInt PostfixNextLine( TDes8& rOutputLine, TInt& rPaddingCount ); |
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75 virtual void Initialise(); |
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76 |
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77 protected: |
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78 TInt iPrefixState; |
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79 TInt iPostfixState; |
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80 }; |
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81 |
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82 // Dummy, just copies |
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83 //---------------------------------------------------------------------------------------- |
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84 class TImCodecNull : public TImFileCodec |
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85 //---------------------------------------------------------------------------------------- |
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86 /** |
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87 @publishedAll |
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88 @released |
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89 */ |
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90 { |
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91 public: |
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92 TInt Encode( const TDesC8& aSrcString, TDes8& rDestString); |
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93 TBool Decode( const TDesC8& aInputLine, TDes8& rOutputLine); |
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94 }; |
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95 |
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96 // Quoted-printable encoding/decoding |
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97 |
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98 //---------------------------------------------------------------------------------------- |
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99 class TImCodecQP : public TImFileCodec |
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100 //---------------------------------------------------------------------------------------- |
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101 /** |
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102 @publishedAll |
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103 @released |
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104 */ |
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105 { |
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106 public: |
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107 IMPORT_C TImCodecQP(); |
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108 IMPORT_C TInt Encode( const TDesC8& aSrcString, TDes8& rDestString); |
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109 IMPORT_C TBool Decode( const TDesC8& aInputLine, TDes8& rOutputLine); |
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110 |
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111 // Not to be used anymore.. |
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112 IMPORT_C TInt EncodeRichText( const TDesC8& aInputLine, TDes8& rOutputLine); |
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113 IMPORT_C TInt DecodeRichText( const TDesC8& aSrcString, TDes& rDestString ); |
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114 |
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115 // Functions which allow flexiblity. Can replace the '=' char or add characters.. |
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116 // to what is defined as 'plain. |
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117 inline void AddPlainChar(const TDesC8& aCharList ); |
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118 inline void AddEncodeChar(const TDesC8& aCharList ); |
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119 inline void SetQPChar( TUint8 aChar); |
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120 |
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121 inline TUint8 ReplacementChar( TChar aControlChar ); |
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122 inline TBool IsPlain( TChar aChar ); |
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123 |
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124 private: |
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125 TBool SmartBreak( TInt written, const TDesC8& pSource ); |
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126 inline TBool IsBreakable( TChar aChar); |
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127 inline void AddSoftLineBreak(TDes8& aPtr, TInt& aPadding, TInt& aWritten); |
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128 inline void AddSoftLineBreak(const TUint8* apEnd, TUint8* aPtr, TInt& aPadding, TInt& aWritten); |
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129 |
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130 private: |
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131 TUint8 iQPCharacter; |
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132 TPtrC8 iPlainCharList; |
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133 TPtrC8 iEncodeCharList; |
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134 |
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135 TInt iPaddingCount; |
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136 }; |
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137 |
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138 |
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139 |
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140 // Base64 coding/decoding |
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141 |
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142 //---------------------------------------------------------------------------------------- |
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143 class TImCodecB64 : public TImFileCodec |
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144 //---------------------------------------------------------------------------------------- |
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145 /** |
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146 @publishedAll |
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147 @released |
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148 */ |
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149 { |
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150 private: |
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151 // base64 coding defines |
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152 enum{ EPadChar = 64 }; |
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153 |
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154 public: |
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155 IMPORT_C TImCodecB64(); |
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156 IMPORT_C TInt Encode( const TDesC8& aSrcString, TDes8& rDestString); |
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157 IMPORT_C TBool Decode( const TDesC8& aSrcString, TDes8& rDestString); |
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158 IMPORT_C void Initialise(); |
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159 |
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160 protected: |
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161 TInt DoEncode(const TDesC8& aSrcString, TDes8& rDestString, TBool aInsertLineBreaks); |
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162 |
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163 private: |
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164 TInt iShiftStored; |
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165 TInt iMaskShiftStored; |
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166 }; |
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167 |
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168 #ifndef SYMBIAN_ENABLE_SPLIT_HEADERS |
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169 #include "cimconvertheader.h" |
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170 #endif |
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171 |
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172 // UU coding/decoding |
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173 |
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174 //---------------------------------------------------------------------------------------- |
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175 class TImCodecUU : public TImFileCodec |
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176 //---------------------------------------------------------------------------------------- |
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177 /** |
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178 @publishedAll |
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179 @released |
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180 */ |
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181 { |
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182 private: |
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183 // UU coding defines |
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184 |
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185 enum{ ESpace = 32, EBackQuote = 96 }; |
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186 |
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187 enum TImBodyPostfix |
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188 { |
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189 EInvertedComma = 0, |
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190 EEndString, |
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191 EEndOfPostfix |
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192 }; |
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193 |
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194 public: |
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195 IMPORT_C TImCodecUU(); |
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196 IMPORT_C TInt Encode( const TDesC8& aSrcString, TDes8& rDestString ); |
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197 IMPORT_C TBool Decode( const TDesC8& aSrcString, TDes8& rDestString ); |
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198 TInt PrefixNextLineL( TDes8& rOutputLine, const TFileName& aName, TInt& rPaddingCount ); |
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199 TInt PostfixNextLine( TDes8& rOutputLine, TInt& rPaddingCount ); |
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200 private: |
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201 void AppendFilenameL( TDes8& rOutputLine, const TFileName& aName ); |
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202 |
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203 }; |
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204 |
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205 #endif |
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206 |