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1 // Copyright (c) 1997-2009 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 <etelmm.h> // for RMobileSmsMessaging::TMobileSmsReceiveAttributesV1 |
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17 #include "mSLOGGER.H" // for LOGTEXT2 and other logging utilities |
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18 #include "ATIO.H" |
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19 #include "Matstd.h" |
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20 #include "cmt_unstored.h" // header file for this cpp file |
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21 #include "sms_rx_queue.h" // for CReceiveSmsQueue |
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22 |
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23 #ifdef __LOGDEB__ |
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24 _LIT8(KLogEntry,"CATSmsWaitForAndHandleCMTUnstored::%S\t%S"); |
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25 #define LOCAL_LOGTEXT(function,text) {_LIT8(F,function);_LIT8(T,text);LOGTEXT3(KLogEntry,&F,&T);} |
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26 #else |
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27 #define LOCAL_LOGTEXT(function,text) |
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28 #endif |
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29 |
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30 |
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31 CATSmsWaitForAndHandleCMTUnstored* CATSmsWaitForAndHandleCMTUnstored::NewL(CATIO* aIo,CTelObject* aTelObject, CPhoneGlobals* aGlobals, |
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32 CReceiveSmsQueue& aReceiveQueue) |
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33 { |
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34 CATSmsWaitForAndHandleCMTUnstored* wait=new(ELeave) CATSmsWaitForAndHandleCMTUnstored(aIo,aTelObject,aGlobals,aReceiveQueue); |
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35 // Currently no need for a ConstructL call |
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36 return wait; |
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37 } |
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38 |
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39 CATSmsWaitForAndHandleCMTUnstored::CATSmsWaitForAndHandleCMTUnstored(CATIO* aIo, CTelObject* aTelObject, |
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40 CPhoneGlobals* aGlobals, CReceiveSmsQueue& aReceiveQueue) |
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41 :CATBase(aIo,aTelObject,aGlobals) |
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42 ,iReceiveQueue(aReceiveQueue) |
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43 {} |
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44 |
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45 |
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46 CATSmsWaitForAndHandleCMTUnstored::~CATSmsWaitForAndHandleCMTUnstored() |
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47 { |
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48 iIo->RemoveExpectStrings(this); |
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49 // We do not need to NULL iCMTExpectString and iCDSExpectString |
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50 // as this object is about to de destroyed |
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51 } |
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52 |
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53 void CATSmsWaitForAndHandleCMTUnstored::Enable() |
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54 { |
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55 LOCAL_LOGTEXT("Enable","Enabled listening for CMT & CDS"); |
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56 |
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57 if (iState==ENoState) |
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58 { |
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59 iState=EWaitForCMT; |
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60 |
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61 // Add +CMT:* expect string |
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62 if (!iCMTExpectString) |
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63 iCMTExpectString=iIo->AddExpectString(this,KCMTMatchString); |
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64 |
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65 // Add +CDS:* expect string |
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66 if (!iCDSExpectString) |
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67 iCDSExpectString=iIo->AddExpectString(this,KCDSMatchString); |
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68 } |
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69 } |
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70 |
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71 void CATSmsWaitForAndHandleCMTUnstored::Disable() |
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72 { |
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73 LOCAL_LOGTEXT("Disable","Disabled listening for CMT & CDS"); |
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74 |
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75 if (iState!=EWaitForCmtSecondLine) |
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76 { |
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77 iIo->RemoveExpectStrings(this); |
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78 iCMTExpectString=NULL; |
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79 iCDSExpectString=NULL; |
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80 iState=ENoState; |
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81 } |
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82 else |
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83 { |
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84 // wait to receive message we're half-way through before disabling |
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85 iState=EWaitForCmtSecondLineThenDisable; |
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86 } |
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87 } |
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88 |
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89 |
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90 void CATSmsWaitForAndHandleCMTUnstored::EventSignal(TEventSource aSource) |
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91 /** |
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92 * Called when a '+CMT:' or '+CDS:' is received. |
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93 * +CMT: [<alpha>],<length><CR><LF><pdu> |
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94 * +CDS: <length><CR><LF><pdu> |
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95 * |
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96 * This is a two state machine that first waits for the +CMT: [<alpha>],<length><CR><LF> |
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97 * and then waits for the final <pdu> |
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98 * |
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99 * When a PDU has been read from the phone, it is pushed into the CReceiveSmsQueue. |
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100 */ |
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101 { |
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102 TInt ret(KErrNone); |
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103 iIo->WriteAndTimerCancel(this); |
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104 LOCAL_LOGTEXT("EventSignal","Enter function"); |
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105 |
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106 switch(iState) |
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107 { |
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108 case EWaitForCMT: |
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109 LOCAL_LOGTEXT("EventSignal","EWaitForCMT"); |
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110 __ASSERT_ALWAYS(aSource == EReadCompletion, Panic(EATCommand_IllegalCompletionReadExpected)); |
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111 |
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112 TRAP(ret,ParseFirstCMTLineL(iPduLen)); |
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113 if(ret!=KErrNone) |
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114 { |
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115 LOCAL_LOGTEXT("EventSignal","Failed to parse 1st line"); |
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116 // No need for more error handling - just wait for next CMT |
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117 } |
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118 else |
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119 { |
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120 // |
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121 // Add the expect string * so that we receive whatever is on the next line |
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122 // (the conditional expression below ensures no memory leak if "+CMT:" |
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123 // is found on consecutive lines) |
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124 if(!iWaitForAnything) |
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125 iWaitForAnything=iIo->AddExpectString(this,KAsterisk); |
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126 |
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127 // |
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128 // We need to keep the buffered data so we... |
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129 iIo->SetPreserveBufferFlag(ETrue); |
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130 |
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131 // |
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132 // Wait for the reception of the second line |
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133 iState=EWaitForCmtSecondLine; |
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134 } |
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135 break; |
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136 |
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137 case EWaitForCmtSecondLine: |
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138 case EWaitForCmtSecondLineThenDisable: |
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139 |
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140 LOCAL_LOGTEXT("EventSignal","EWaitForCmtSecondLine"); |
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141 __ASSERT_ALWAYS(aSource == EReadCompletion,Panic(EATCommand_IllegalCompletionReadExpected)); |
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142 iIo->RemoveExpectString(iWaitForAnything); |
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143 iWaitForAnything=NULL; |
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144 iIo->SetPreserveBufferFlag(EFalse); // We've got the PDU, and will delete the buffer when the line is parsed |
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145 |
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146 { // Curly brackets used to scope pdu and attr local data |
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147 // |
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148 // Parse and Push received message into CReceiveSmsQueue |
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149 RMobileSmsMessaging::TMobileSmsGsmTpdu pdu; |
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150 RMobileSmsMessaging::TMobileSmsReceiveAttributesV1 attr; |
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151 TRAPD(ret,ParseSecondCMTLineL(pdu,attr)); |
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152 if(ret!=KErrNone) |
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153 { |
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154 LOCAL_LOGTEXT("EventSignal","Failed to parse 2nd line"); |
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155 } |
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156 else |
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157 { |
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158 LOCAL_LOGTEXT("EventSignal","Adding SMS to iReceiveQueue"); |
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159 iReceiveQueue.Push(pdu,attr); |
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160 } |
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161 } |
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162 |
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163 // |
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164 // We are done, but there is no client request to complete |
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165 // we just return and wait until we get our next CMT command |
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166 // unless we should disable now |
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167 if (iState==EWaitForCmtSecondLineThenDisable) |
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168 Disable(); |
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169 else |
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170 iState=EWaitForCMT; |
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171 break; |
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172 |
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173 case ENoState: |
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174 default: |
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175 // We should never get here, but we don't need to panic in release code. |
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176 __ASSERT_DEBUG(EFalse,Panic(EATWaitForCMTNoState)); |
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177 break; |
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178 } |
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179 } |
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180 |
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181 |
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182 |
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183 void CATSmsWaitForAndHandleCMTUnstored::ParseFirstCMTLineL(TInt& aPduLen) |
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184 /** |
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185 * Parse 1st line of CMT response, of the format: "+CMT: [<alpha>], <pdu_len>" |
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186 * Stores the <pdu_len> in aPduLen |
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187 */ |
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188 { |
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189 ParseLineLC(); |
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190 |
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191 CATParamListEntry* entry; |
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192 CATParamListEntry* alpha; |
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193 TDblQueIter<CATParamListEntry> iter(iRxResults); |
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194 |
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195 entry=iter++; |
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196 if (entry==NULL || (entry->iResultPtr!=KCMTResponseString && entry->iResultPtr!=KCDSResponseString)) |
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197 { |
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198 LOCAL_LOGTEXT("ParseFirstCMTLineL","Failed to find response +CMT: or +CDS:"); |
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199 User::Leave(KErrGeneral); |
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200 } |
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201 |
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202 // |
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203 // Get the <alpha> token, optional this token may return the message length token |
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204 alpha=iter++; |
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205 if(alpha==NULL) |
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206 { |
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207 LOCAL_LOGTEXT("ParseFirstCMTLineL","Failed with 1st argument"); |
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208 User::Leave(KErrGeneral); |
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209 } |
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210 |
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211 // |
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212 // Get the message length token |
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213 entry=iter++; |
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214 if(entry==NULL) |
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215 entry=alpha; // The alpha token must have been missing and thus alpha holds the message length |
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216 |
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217 if(entry==NULL) |
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218 { |
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219 LOCAL_LOGTEXT("ParseFirstCMTLineL","Failed with 2nd argument"); |
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220 User::Leave(KErrGeneral); |
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221 } |
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222 |
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223 // |
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224 // Process the message length |
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225 aPduLen=CATParamListEntry::EntryValL(entry); |
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226 LOGTEXT2(_L8("New SMS detected of length %d"),iPduLen); |
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227 |
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228 CleanupStack::PopAndDestroy(); // ParseLineLC pushed object |
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229 } |
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230 |
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231 |
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232 void CATSmsWaitForAndHandleCMTUnstored::ParseSecondCMTLineL(RMobileSmsMessaging::TMobileSmsGsmTpdu& aPdu,RMobileSmsMessaging::TMobileSmsReceiveAttributesV1& aAttr) |
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233 /** |
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234 * Parse second line of CMT or DS response, of the format: "<pdu>" |
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235 * The <pdu> is saved to aPdu. If the <pdu> is found to have a prefixed SCA |
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236 * then that is removed before the save to aPdu. |
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237 */ |
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238 { |
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239 LOCAL_LOGTEXT("ParseSecondCMTLineL","Enter funciton"); |
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240 |
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241 // Intiailise the attributes |
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242 aAttr.iFlags=0; |
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243 // |
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244 // Copy the received pdu to local storage so that we can process |
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245 // and modify it. |
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246 // Buffer size calculated as follows; |
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247 // (max pdu size + max prefixed SCA size) * number of ASCII chars used to code an octet |
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248 TBuf8<(RMobileSmsMessaging::KGsmTpduSize+12)*2> localPdu; |
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249 { |
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250 ParseLineLC(); |
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251 TDblQueIter<CATParamListEntry> iter(iRxResults); |
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252 CATParamListEntry* entry=iter++; // Have to increment iter so it returns a pointer |
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253 if(entry==NULL) |
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254 User::Leave(KErrGeneral); // Would prefer not to leave and return an error |
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255 // but this function has to be trapped as we |
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256 // have the ParseLineLC() call. |
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257 localPdu.Copy(entry->iResultPtr); |
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258 CleanupStack::PopAndDestroy(); // ParseLineLC pushed object |
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259 } |
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260 |
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261 // Nokia 9210 sometimes aborts the CMT frame in the middle of pdu. |
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262 // Worst, it is sometimes contains odd number of nibbles which |
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263 // causes panic in ConvertAsciiToBinary() method. This type of |
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264 // frames will simply be discarded. |
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265 if(localPdu.Length()<(iPduLen*2)) |
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266 User::Leave(KErrUnderflow); |
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267 |
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268 // |
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269 // Check if we have a prefixed SCA on our pdu. |
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270 // If we do then remove it. |
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271 if(localPdu.Length()>(iPduLen*2)) |
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272 { |
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273 if(CATSmsUtils::ReadAndRemoveAddressFromAscii(localPdu,aAttr.iGsmServiceCentre,ETrue)!=KErrNone) |
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274 { |
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275 LOCAL_LOGTEXT("ParseAndStoreCMGRResponseL","Failed to read and remove SCA from PDU"); |
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276 } |
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277 else |
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278 { |
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279 aAttr.iFlags|=RMobileSmsMessaging::KGsmServiceCentre; |
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280 } |
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281 } |
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282 |
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283 // |
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284 // Convert received pdu from ASCII into binary |
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285 if (CATSmsUtils::ConvertAsciiToBinary(localPdu,aPdu)!=KErrNone) |
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286 { |
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287 LOCAL_LOGTEXT("ParseAndStoreCMGRResponseL","Failed to code PDU into binary"); |
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288 } |
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289 else |
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290 { |
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291 aAttr.iDataFormat=RMobileSmsMessaging::EFormatGsmTpdu; |
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292 aAttr.iFlags|=RMobileSmsMessaging::KSmsDataFormat; |
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293 aAttr.iStatus=RMobileSmsMessaging::EMtMessageUnstoredPhoneAck; |
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294 aAttr.iFlags|=RMobileSmsMessaging::KIncomingStatus; |
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295 } |
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296 } |
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297 |
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298 |
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299 |
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300 void CATSmsWaitForAndHandleCMTUnstored::CompleteWithIOError(TEventSource /*aSource*/,TInt aStatus) |
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301 { |
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302 LOCAL_LOGTEXT("CompleteWithIOError","Enter function"); |
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303 // CATIO removes expect strings in event of IO error so don't do it here |
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304 iCMTExpectString=NULL; |
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305 iCDSExpectString=NULL; |
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306 // inform client of error so that it does not continue to wait for incoming SMS |
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307 // now that this wait object has been disabled |
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308 iReceiveQueue.CompleteClientReqWithError(aStatus); |
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309 } |
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310 |