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1 /* |
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2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * Recognizer for vCalendar and vCard. |
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16 * |
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17 */ |
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18 |
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19 |
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20 |
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21 // INCLUDE FILES |
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22 #include <apmrec.h> |
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23 #include <apmstd.h> |
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24 #include "vrec.h" |
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25 #include "VRecLog.h" |
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26 |
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27 #include <e32std.h> |
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28 #include <ecom/ecom.h> |
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29 #include <ecom/implementationproxy.h> |
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30 |
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31 // CONSTANTS |
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32 const TUid KUidVREC = {0x101F4CF5}; |
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33 |
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34 // maximum amount of buffer space we will ever use |
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35 // Value estimated on observation of iCal userid lengths |
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36 const TInt KMaxBufferLength = 255; |
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37 |
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38 const TText8* const mimeTypes[] = |
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39 { |
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40 _S8("text/X-vCard"), |
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41 _S8("text/calendar"), // iCalendar MIME type (RFC 2445) |
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42 _S8("text/x-vCalendar") // vCalendar v1.0 MIME type |
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43 }; |
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44 |
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45 _LIT8(KDataTypeVCard, "text/X-vCard"); |
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46 _LIT8(KDataTypeVCalendar2, "text/x-vCalendar"); // vCalendar v1.0 MIME type |
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47 _LIT8(KDataTypeVCalendar3, "text/calendar"); // vCalendar v2.0 MIME type |
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48 |
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49 _LIT8(KBegin, "BEGIN"); |
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50 _LIT8(KVCalendar, "VCALENDAR"); |
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51 _LIT8(KBeginVCard, "BEGIN:VCARD"); |
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52 _LIT8(KVersionICal, "VERSION:2.0"); |
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53 |
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54 /** |
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55 * VCalendar definition from vCalendar spec v1.0 |
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56 * ws = 1*(SPACE / HTAB) |
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57 * wsls = 1*(SPACE / HTAB / CRLF) |
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58 * vcal_file = [wsls] vcal [wsls] |
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59 * vcal = "BEGIN"[ws]":"[ws] "VCALENDAR" [ws] 1*CRLF |
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60 * calprop calenties [ws] *CRLF |
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61 * "END" [ws] ":" [ws] "VCALENDAR" [ws] 1*CRLF |
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62 */ |
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63 // ============================ MEMBER FUNCTIONS =============================== |
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64 CVRec::CVRec() |
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65 :CApaDataRecognizerType(KUidVREC, CApaDataRecognizerType::ELow) |
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66 { |
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67 iCountDataTypes = sizeof(mimeTypes)/sizeof(TText*); |
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68 LOG1("CVRec::iCountDataTypes: %d", iCountDataTypes); |
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69 } |
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70 |
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71 TUint CVRec::PreferredBufSize() |
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72 { |
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73 return KMaxBufferLength; |
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74 } |
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75 |
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76 TDataType CVRec::SupportedDataTypeL(TInt aIndex) const |
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77 { |
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78 __ASSERT_DEBUG(aIndex>=0 && aIndex<iCountDataTypes, User::Invariant()); |
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79 TPtrC8 ptr; |
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80 ptr.Set(mimeTypes[aIndex]); |
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81 return TDataType(ptr); |
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82 } |
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83 |
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84 void CVRec::DoRecognizeL(const TDesC& /*aName*/, const TDesC8& aBuffer) |
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85 { |
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86 LOG1("CVRec::DoRecognizeL: %S", &aBuffer); |
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87 TInt length = aBuffer.Length(); |
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88 |
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89 // The vCalendar header is longer than the vCard header. |
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90 TInt lengthNeeded = KBeginVCard().Length(); |
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91 if (length < lengthNeeded) |
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92 { |
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93 // not enough data for it to be a vCard or vCalendar or iCalendar |
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94 return; |
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95 } |
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96 |
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97 TPtrC8 data = aBuffer.Left(KMaxBufferLength); |
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98 |
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99 TInt posVCard = data.FindF( KBeginVCard ); |
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100 |
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101 //the position must be at the beginning of the file |
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102 if (posVCard == 0) |
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103 { |
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104 iDataType = TDataType(KDataTypeVCard); |
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105 iConfidence = ECertain; |
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106 return; |
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107 } |
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108 else if (posVCard != KErrNotFound) |
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109 { |
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110 iConfidence = ENotRecognized; |
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111 return; |
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112 } |
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113 |
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114 if (data.FindF(KBegin) != KErrNotFound && |
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115 data.FindF(KVCalendar) != KErrNotFound && |
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116 data.FindF(KVersionICal) != KErrNotFound) |
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117 { |
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118 iDataType = TDataType(KDataTypeVCalendar3); |
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119 iConfidence = ECertain; |
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120 return; |
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121 } |
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122 else if (data.FindF(KBegin) != KErrNotFound && |
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123 data.FindF(KVersionICal) == KErrNotFound && |
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124 data.FindF(KVCalendar) != KErrNotFound) |
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125 { |
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126 iDataType = TDataType(KDataTypeVCalendar2); |
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127 iConfidence = ECertain; |
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128 return; |
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129 } |
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130 else |
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131 { |
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132 iConfidence = ENotRecognized; |
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133 return; |
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134 } |
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135 } |
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136 |
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137 CApaDataRecognizerType* CVRec::CreateRecognizerL() |
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138 { |
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139 return new (ELeave) CVRec (); |
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140 } |
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141 |
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142 const TImplementationProxy ImplementationTable[] = |
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143 { |
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144 #ifdef __EABI__ |
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145 IMPLEMENTATION_PROXY_ENTRY( 0x101F879A, CVRec::CreateRecognizerL ) |
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146 #else |
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147 { { 0x101F879A }, CVRec::CreateRecognizerL } |
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148 #endif |
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149 }; |
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150 |
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151 EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount) |
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152 { |
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153 aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy); |
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154 return ImplementationTable; |
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155 } |
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156 |
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157 |
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158 |
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159 |
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160 |
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161 // end of file |