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1 /* |
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2 * Copyright (c) 2009 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: CJavaEnvInfo implementation. |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <e32base.h> |
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20 #include <f32file.h> |
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21 #include <pathinfo.h> |
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22 |
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23 #include <javaenvinfo.h> |
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24 #include "logger.h" |
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25 |
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26 namespace Java |
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27 { |
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28 |
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29 TInt ParseVersionL(TLex& aVersionText,TBool aLastVersionNumber); |
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30 |
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31 // User-agent header substring |
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32 _LIT(KUserAgentJavaString, "Configuration/CLDC-1.1 Profile/MIDP-2.1"); |
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33 |
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34 // About application Java version text |
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35 _LIT(KAboutApplicationString, "MIDP 2.1, CLDC 1.1"); |
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36 |
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37 // The path to resource file with java version |
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38 _LIT(KMicroeditionJavaVersionFile, "\\resource\\versions\\java.txt"); |
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39 |
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40 // Length of temporary buffer for string manipulation |
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41 const TUint KBufferSize = 32; |
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42 |
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43 // The min and max values for each version number |
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44 // const TUint KMajorVersionMinValue = 1; |
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45 const TUint KMajorVersionMaxValue = 127; |
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46 // const TUint KMinorVersionMaxValue = 9; |
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47 // const TUint KBuildVersionMinValue = 1; |
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48 // const TUint KBuildVersionMaxValue = 32767; |
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49 |
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50 |
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51 // ======== MEMBER FUNCTIONS ======== |
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52 |
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53 // --------------------------------------------------------------------------- |
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54 // JavaEnvInfo::Version() |
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55 // |
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56 // The format of the version text in the version file is: |
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57 // <major> '.', <minor> '.' <build> |
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58 // |
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59 // @return Java environment version |
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60 // --------------------------------------------------------------------------- |
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61 EXPORT_C TVersion JavaEnvInfo::Version() |
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62 { |
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63 JELOG2(EUtils); |
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64 |
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65 TVersion version(0, 0, 0); |
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66 |
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67 // the error occured during reading a version file is ignored |
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68 TRAP_IGNORE(version = GetJavaVersionL()); |
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69 |
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70 LOG3(EUtils,EInfo," JavaEnvInfo::Version: major = %d, minor = %d, build = %d", |
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71 version.iMajor, version.iMinor, version.iBuild); |
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72 |
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73 return version; |
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74 } |
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75 |
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76 // --------------------------------------------------------------------------- |
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77 // JavaEnvInfo::GetUserAgentHeaderL returns the user agent header part. |
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78 // |
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79 // @return Java related user agent header substring |
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80 // --------------------------------------------------------------------------- |
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81 EXPORT_C HBufC* JavaEnvInfo::GetUserAgentHeaderL() |
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82 { |
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83 JELOG2(EUtils); |
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84 HBufC* userAgentHeader = KUserAgentJavaString().AllocL(); |
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85 return userAgentHeader; |
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86 } |
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87 |
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88 // --------------------------------------------------------------------------- |
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89 // JavaEnvInfo::GetUserAgentHeaderL just returns the hardcoded literal. In |
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90 // the future, this might be read from a resource file if there is need for |
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91 // localization. |
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92 // |
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93 // @return About application text |
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94 // --------------------------------------------------------------------------- |
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95 EXPORT_C HBufC* JavaEnvInfo::GetPlatformInfoL() |
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96 { |
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97 JELOG2(EUtils); |
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98 HBufC* aboutString = KAboutApplicationString().AllocL(); |
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99 return aboutString; |
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100 } |
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101 |
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102 // --------------------------------------------------------------------------- |
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103 // JavaEnvInfo::GetJavaVersionL() |
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104 // |
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105 // The format of the version text in the version file is: |
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106 // <major> '.', <minor> '.' <build> |
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107 // |
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108 // The version file can be either in C-drive or in ROM (Z-drive). All the |
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109 // other locations are ignored. This means that when updating the Java |
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110 // environment, the new text file must be copied to C-drive. |
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111 // --------------------------------------------------------------------------- |
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112 TVersion JavaEnvInfo::GetJavaVersionL() |
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113 { |
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114 JELOG2(EUtils); |
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115 |
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116 TInt size; |
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117 |
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118 RFs rfs; |
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119 User::LeaveIfError(rfs.Connect()); |
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120 CleanupClosePushL(rfs); |
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121 |
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122 RFile file; |
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123 //first try read the version information from C: drive |
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124 |
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125 LOG(EUtils,EInfo,"GetJavaVersionL: reading file from C: drive"); |
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126 TFileName alternateFile = TParsePtrC( |
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127 PathInfo::PhoneMemoryRootPath()).Drive(); |
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128 alternateFile.Append(KMicroeditionJavaVersionFile); |
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129 TInt ret = file.Open(rfs, alternateFile , EFileRead); |
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130 |
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131 if (ret != KErrNone) |
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132 { |
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133 LOG(EUtils,EInfo, " GetJavaVersionL: reading file from Z: drive"); |
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134 |
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135 // if the version information file is not in C:-drive (KErrPathNotFound, |
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136 // KErrNotFound) or can not be accessed for another reason, version |
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137 // information is read from Z:-drive |
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138 TFileName defaultFile = TParsePtrC( |
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139 PathInfo::RomRootPath()).Drive(); |
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140 defaultFile.Append(KMicroeditionJavaVersionFile); |
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141 User::LeaveIfError(file.Open(rfs, defaultFile, EFileRead)); |
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142 |
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143 LOG(EUtils,EInfo, " GetJavaVersionL: reading file from Z: drive"); |
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144 } |
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145 |
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146 CleanupClosePushL(file); |
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147 |
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148 User::LeaveIfError(file.Size(size)); |
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149 if (size > KBufferSize) |
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150 { |
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151 size = KBufferSize; |
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152 } |
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153 |
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154 HBufC8* buffer = HBufC8::NewLC(size); |
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155 TPtr8 des = buffer->Des(); |
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156 User::LeaveIfError(file.Read(des, size)); |
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157 |
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158 HBufC16* buffer16 = HBufC16::NewLC(size); |
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159 buffer16->Des().Copy(des); |
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160 |
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161 // parse the version numbers (major, minor, build) from the string |
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162 // leave if error occurs in string or in its format (e.g.: missing dot char, wrong value) |
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163 TLex versionText(buffer16->Des()); |
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164 TUint32 majorVersion = ParseVersionL(versionText,EFalse); |
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165 TUint32 minorVersion = ParseVersionL(versionText,EFalse); |
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166 TUint32 buildVersion = ParseVersionL(versionText,ETrue); |
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167 |
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168 TVersion version(majorVersion, minorVersion, buildVersion); |
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169 |
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170 CleanupStack::PopAndDestroy(buffer16); |
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171 CleanupStack::PopAndDestroy(buffer); |
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172 CleanupStack::PopAndDestroy(&file); |
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173 CleanupStack::PopAndDestroy(&rfs); |
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174 |
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175 return version; |
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176 } |
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177 |
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178 // |
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179 // |
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180 // |
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181 TInt ParseVersionL(TLex& aVersionText,TBool aLastVersionNumber) |
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182 { |
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183 JELOG2(EUtils); |
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184 |
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185 aVersionText.Mark(); |
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186 while ((aVersionText.Peek()).IsDigit()) |
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187 { |
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188 // move to next char |
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189 aVersionText.Inc(); |
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190 } |
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191 TLex partialVersionText(aVersionText.MarkedToken()); |
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192 TUint32 version(0); |
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193 if (partialVersionText.BoundedVal(version, |
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194 EDecimal, |
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195 Java::KMajorVersionMaxValue) != KErrNone) |
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196 { |
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197 LOG(EUtils,EInfo, " GetJavaVersionL: format of value is corrupted (major version)"); |
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198 User::Leave(KErrCorrupt); |
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199 } |
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200 // check format |
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201 if (!aLastVersionNumber) |
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202 { |
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203 if (aVersionText.Peek() == '.') |
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204 { |
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205 // move to the next char (should be number) |
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206 aVersionText.Inc(); |
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207 } |
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208 else |
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209 { |
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210 LOG(EUtils,EInfo, " GetJavaVersionL: format of value is corrupted"); |
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211 User::Leave(KErrCorrupt); |
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212 } |
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213 } |
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214 return version; |
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215 } |
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216 |
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217 } |
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218 |