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1 // Copyright (c) 2003-2009 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 |
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17 #ifndef _ZIP_FILE_H_ |
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18 #define _ZIP_FILE_H_ |
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19 |
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20 #include <e32std.h> |
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21 #include <s32file.h> |
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22 #include <charconv.h> |
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23 |
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24 #include <localtypes.h> |
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25 #include <ziparchive.h> |
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26 #include <zipfilememberinputstream.h> |
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27 #include <zipfilememberiterator.h> |
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28 #include <zipfilemember.h> |
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29 |
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30 // Forward Class Declaration(s) |
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31 |
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32 class CFileInputStream; |
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33 class CZipFileMemberIterator; |
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34 class CZipFileMember; |
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35 namespace ContentAccess |
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36 { |
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37 class CData; |
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38 } |
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39 |
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40 // End of Forward Class Declaration(s) |
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41 |
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42 |
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43 /** |
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44 A CZipFile represents a ZIP archive contained in a single file. |
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45 Multi file zip archives are not supported. |
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46 |
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47 @publishedAll |
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48 @released |
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49 */ |
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50 class CZipFile : public CZipArchive |
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51 { |
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52 friend class RZipFileMemberReaderStream; |
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53 friend class CZipFileMemberIterator; |
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54 |
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55 public: |
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56 /** ZipFile error enumeration. |
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57 */ |
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58 enum |
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59 { |
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60 /** Cannot read file directory in the archive file*/ |
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61 KZipFileError = KZipArchiveMinError - 1, |
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62 |
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63 /** File not found error. It is not used in current implemenation*/ |
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64 KZipFileNotFound = KZipFileError - 1, |
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65 |
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66 /** File IO error.Any error occurs during a archive file is readed. |
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67 For examples, any error about reading number of disk, |
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68 an offset of signature, or the content of file is non-readable. |
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69 */ |
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70 KZipFileIOError = KZipFileError - 2 |
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71 }; |
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72 |
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73 public: |
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74 IMPORT_C static CZipFile* NewL(RFs& aFs, RFile& aFile); |
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75 IMPORT_C static CZipFile* NewL(RFs& aFs, const TDesC& aFileName); |
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76 IMPORT_C CZipFile(RFs& aFs, const TDesC& aFileName); |
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77 IMPORT_C TInt OpenL(void); |
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78 IMPORT_C void Close(void); |
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79 IMPORT_C virtual ~CZipFile(); |
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80 |
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81 protected: |
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82 IMPORT_C void ConstructL(const TDesC& aFileName); |
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83 |
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84 IMPORT_C void ConstructL(RFile& aFile); |
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85 |
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86 public: |
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87 IMPORT_C TInt Size(TInt& aSize) const; |
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88 |
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89 IMPORT_C CZipFileMember* MemberL(const TDesC& aName); |
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90 IMPORT_C CZipFileMember* CaseInsensitiveMemberL(const TDesC& aName); |
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91 IMPORT_C CZipFileMember* CaseSensitiveOrCaseInsensitiveMemberL(const TDesC& aName); |
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92 IMPORT_C TInt GetInputStreamL(const CZipFileMember* aMember, RZipFileMemberReaderStream*& aStream); |
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93 |
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94 IMPORT_C CZipFileMemberIterator* GetMembersL(void); |
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95 |
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96 |
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97 protected: |
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98 |
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99 /** |
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100 Internal representation of a compressed file in a zipfile |
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101 @publishedAll |
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102 @released |
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103 */ |
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104 struct TMemberPointer |
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105 { |
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106 /** the name of a compressed file*/ |
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107 TFileName* iName; |
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108 |
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109 /** Not used in current implementation*/ |
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110 TUint32 iCentralHeaderOffset; |
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111 |
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112 /** The local offset of header in a compressed file*/ |
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113 TUint32 iLocalHeaderOffset; |
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114 |
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115 /** CRC with 32 bits length in a compressed file*/ |
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116 TUint32 iCRC32; |
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117 |
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118 /** The size of compressed file */ |
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119 TUint32 iCompressedSize; |
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120 |
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121 /** The size of file without compressed*/ |
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122 TUint32 iUncompressedSize; |
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123 }; |
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124 |
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125 protected: |
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126 TInt FindCentralDirectoryTrailer(TUint32& offset); |
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127 TInt ReadCentralDirectoryTrailer(TUint32 offset, TCentralDirectoryTrailer&); |
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128 TInt ReadCentralDirectoryHeaderL(TCentralDirectoryHeader&, TMemberPointer&, |
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129 CCnvCharacterSetConverter* aConverter, TInt aConverterState); |
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130 |
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131 TInt ReadLocalHeader(TUint32, TLocalHeader&); |
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132 |
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133 const TMemberPointer* FindMemberPointer(const TDesC&, TBool); |
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134 |
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135 TInt LoadMemberPointersL(void); |
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136 |
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137 RZipFileMemberReaderStream* MakeInputStreamL(TUint32, TUint32, TUint32, TUint32); |
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138 CZipFileMember* MakeMemberL(TInt); |
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139 CZipFileMember* MakeMemberL(const TMemberPointer&, const TLocalHeader&); |
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140 |
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141 // File I/O Support |
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142 void OpenFileL(const TDesC& aFileName); |
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143 |
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144 TInt Read(TByte*, TUint32); |
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145 TInt Read(TUint16&); |
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146 TInt Read(TUint32&); |
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147 |
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148 TInt Seek(TInt); |
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149 |
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150 // Misc |
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151 void DeleteMemberPointers(void); |
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152 |
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153 private: |
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154 const TDesC& iFileName; |
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155 TUint32 iFileLength; |
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156 |
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157 /** The central directory of ZIP File Trailer*/ |
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158 TCentralDirectoryTrailer iTrailer; |
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159 |
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160 /** The pointer to a a compressed file in a zipfile*/ |
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161 TMemberPointer* iMemberPointers; |
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162 |
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163 RFs& iFs; |
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164 |
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165 /** The pointer to CData object created from a zip file*/ |
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166 ContentAccess::CData* iData; |
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167 }; |
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168 |
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169 #endif /* !_ZIP_FILE_H_ */ |