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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 #include "cmultiparttextiterator.h" |
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17 |
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18 EXPORT_C CMultipartTextIterator* CMultipartTextIterator::NewL(CPushMessage& aPushMessage) |
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19 /** Allocates and creates a new MIME multipart message iterator. |
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20 |
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21 @param aPushMessage MIME multipart message to process |
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22 @return New MIME multipart message iterator */ |
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23 { |
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24 CMultipartTextIterator* self = new (ELeave) CMultipartTextIterator(aPushMessage); |
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25 CleanupStack::PushL(self); |
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26 self->ConstructL(); |
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27 CleanupStack::Pop(); |
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28 return self; |
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29 } |
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30 |
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31 |
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32 /** |
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33 * CMultipartTextMessage |
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34 * @param aPushMessage A message determined to be text/multipart. |
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35 */ |
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36 CMultipartTextIterator::CMultipartTextIterator(CPushMessage& aPushMessage) : |
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37 CMultipartIteratorBase(aPushMessage) |
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38 { |
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39 } |
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40 |
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41 /** |
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42 * Fully instantiates this class. |
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43 * Finds the boundary and sets the internal pointer to the first part |
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44 */ |
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45 void CMultipartTextIterator::ConstructL() |
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46 { |
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47 BoundaryParamL(); |
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48 FirstL(); |
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49 } |
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50 |
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51 EXPORT_C CMultipartTextIterator::~CMultipartTextIterator() |
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52 /** Destructor. */ |
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53 { |
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54 delete iBoundary; |
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55 } |
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56 |
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57 |
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58 |
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59 /** |
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60 * Finds the boundary from the WAP Binary Header. |
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61 * The actually boundary conforms to RFC 2061. |
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62 * @leave KErrCorrupt if the message does not contain a boundary |
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63 * @leave HBufC8::NewL |
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64 */ |
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65 void CMultipartTextIterator::BoundaryParamL() |
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66 { |
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67 TPtrC contentType; |
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68 iPushMessage.GetContentType(contentType); |
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69 __ASSERT_DEBUG( contentType.FindF(KMultipartText) == 0 , User::Panic(KPushInvalidContentType,0)); |
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70 |
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71 const TInt KMaxBoundaryLen(74); // Max Boundary = 70 + preceeding "--" and at the end "--" |
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72 TBuf8<KMaxBoundaryLen> cleanCtHdrValue; |
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73 TPtrC8 ctHdrValue; |
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74 TPtrC8 bndLabel(KBoundaryParam); |
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75 iPushMessage.GetBinaryHeaderField(EHttpContentType, ctHdrValue); |
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76 |
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77 |
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78 TInt paramOffset = ctHdrValue.FindF(KBoundaryParam); |
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79 if (paramOffset != KErrNotFound) |
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80 { |
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81 ctHdrValue.Set(ctHdrValue.Mid(paramOffset + bndLabel.Length())); |
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82 |
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83 // remove the NULL terminators |
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84 cleanCtHdrValue.Copy(ctHdrValue); |
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85 TInt nullTerm = cleanCtHdrValue.Locate(0); |
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86 for ( ; nullTerm != KErrNotFound; nullTerm = cleanCtHdrValue.Locate(0)) |
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87 cleanCtHdrValue.Delete(nullTerm,1); |
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88 |
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89 // remove start & end quotes |
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90 if (cleanCtHdrValue[0] == '\"') |
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91 { |
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92 cleanCtHdrValue.Delete(0,1); |
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93 TInt endIndex = cleanCtHdrValue.Length() - 1; |
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94 if (cleanCtHdrValue[endIndex] == '\"') |
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95 cleanCtHdrValue.Delete(endIndex,1); |
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96 else |
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97 User::Leave(KErrCorrupt); |
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98 } |
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99 } |
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100 else |
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101 User::Leave(KErrCorrupt); |
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102 |
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103 iBoundary = HBufC8::NewL(sizeof(KBoundaryStartEnd) - 1 + ctHdrValue.Length()); |
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104 iBoundary->Des().Copy(KBoundaryStartEnd); |
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105 iBoundary->Des().Append(cleanCtHdrValue); |
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106 } |
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107 |
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108 |
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109 EXPORT_C TBool CMultipartTextIterator::NextL() |
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110 /** Moves the iterator to the next message part. |
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111 |
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112 @return ETrue if there is a next part, EFalse otherwise */ |
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113 { |
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114 TPtrC8 hdrPtr; |
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115 TInt offset = 0; |
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116 |
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117 hdrPtr.Set(iIndexPtr); |
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118 |
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119 // find the boudary which starts our next part |
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120 offset = hdrPtr.Find(*iBoundary); |
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121 |
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122 if (offset == KErrNotFound ) |
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123 return EFalse; |
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124 |
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125 // point to the end of the boudary string |
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126 hdrPtr.Set(hdrPtr.Mid(offset + iBoundary->Length())); |
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127 |
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128 // did we encounter the last "--" |
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129 if (hdrPtr.Find(KBoundaryStartEnd) == 0) |
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130 return EFalse; |
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131 |
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132 // see if this is really the boundary. Expecting to see \r\n, no spurious text following it |
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133 if (hdrPtr.Find(KCRLF) != 0) |
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134 return EFalse; |
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135 |
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136 // point to the beginning of the new part |
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137 TPtrC8 ptrCRLF(KCRLF); |
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138 hdrPtr.Set(hdrPtr.Mid(ptrCRLF.Length())); |
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139 iIndexPtr.Set(hdrPtr); |
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140 |
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141 return ETrue; |
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142 } |
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143 |
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144 |
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145 EXPORT_C void CMultipartTextIterator::FirstL() |
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146 /** Resets the iterator the beginning of the first part of the message. */ |
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147 { |
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148 // Set iIndexPtr to the start of the body |
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149 iPushMessage.GetMessageBody(iIndexPtr); |
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150 |
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151 // need to call this to get past the first boundary |
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152 NextL(); |
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153 } |
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154 |
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155 |
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156 EXPORT_C CPushMessage* CMultipartTextIterator::PartL() |
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157 /** Gets the message part that the iterator is currently referencing. |
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158 |
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159 @return Message part */ |
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160 { |
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161 // iIndexPtr should be pointing to line after the boudary |
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162 |
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163 // check if there are boudary headers |
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164 TPtrC8 hdrSep(KHdrSeparator); |
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165 TPtrC8 hdrStart(iIndexPtr); |
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166 |
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167 TInt offset = hdrStart.Find(KHdrSeparator); |
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168 if (offset == KErrNotFound) |
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169 User::Leave(KErrNotFound); |
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170 |
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171 HBufC8* headerBuf = hdrStart.Mid(0, offset).AllocLC(); |
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172 |
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173 // now find the body |
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174 TPtrC8 bodyStart; |
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175 bodyStart.Set(hdrStart.Mid(offset + hdrSep.Length())); |
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176 |
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177 offset = bodyStart.Find(*iBoundary); |
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178 if (offset == KErrNotFound) |
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179 User::Leave(KErrNotFound); |
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180 |
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181 HBufC8* bodyBuf = bodyStart.Mid(0, offset).AllocLC(); |
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182 |
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183 CPushMessage* pm = CPushMessage::NewL( headerBuf, bodyBuf); |
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184 CleanupStack::Pop(2, headerBuf); // bodyBuf, headerBuf |
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185 return pm; |
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186 } |
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187 |