Java Runtime (JRE)

<?xml version='1.0' encoding='utf-8'?>
<Jobs>
  <ApplicationJob xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" Guid="09669502-1cf8-48a5-a4da-1d7e5436f2e4">
    <SourceTemplate><![CDATA[<Jobs>
  <ApplicationJob xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" Guid="0fb30714-8ed0-4611-8f1b-cb8fec9dae91">
    <WebsiteUrl />
    <UserAgent>Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.168 Safari/535.19</UserAgent>
    <UserNotes />
    <LastFileSize>384846</LastFileSize>
    <LastFileDate>2012-05-23T02:09:37.7748325</LastFileDate>
    <IgnoreFileInformation>false</IgnoreFileInformation>
    <DownloadBeta>Default</DownloadBeta>
    <DownloadDate xsi:nil="true" />
    <CheckForUpdatesOnly>false</CheckForUpdatesOnly>
    <VariableChangeIndicator />
    <CanBeShared>true</CanBeShared>
    <ShareApplication>false</ShareApplication>
    <ExclusiveDownload>false</ExclusiveDownload>
    <HttpReferer />
    <SetupInstructions />
    <Variables>
      <item>
        <key>
          <string>version</string>
        </key>
        <value>
          <UrlVariable>
            <RegexRightToLeft>false</RegexRightToLeft>
            <VariableType>StartEnd</VariableType>
            <Regex />
            <Url><placeholder name="Url with version information" value="https://www.java.com/en/download/manual.jsp" /></Url>
            <StartText>&lt;TABLE cellspacing ="1" cellpadding ="6" border = "0"&gt;
  &lt;TR&gt;
    &lt;TH class="Title" align="center" width=90&gt;7-Zip </StartText>
            <EndText>&lt;BR&gt;</EndText>
            <TextualContent />
            <Name>version</Name>
          </UrlVariable>
        </value>
      </item>
      <item>
        <key>
          <string>url64</string>
        </key>
        <value>
          <UrlVariable>
            <RegexRightToLeft>false</RegexRightToLeft>
            <VariableType>Textual</VariableType>
            <Regex />
            <TextualContent>""</TextualContent>
            <Name>url64</Name>
          </UrlVariable>
        </value>
      </item>
    </Variables>
    <ExecuteCommand />
    <ExecutePreCommand />
    <ExecuteCommandType>Batch</ExecuteCommandType>
    <ExecutePreCommandType>Batch</ExecutePreCommandType>
    <Category />
    <SourceType>FixedUrl</SourceType>
    <DeletePreviousFile>true</DeletePreviousFile>
    <Enabled>true</Enabled>
    <FileHippoId />
    <LastUpdated>2012-05-23T02:09:37.7748325</LastUpdated>
    <TargetPath>C:\Chocolatey\_work\</TargetPath>
    <FixedDownloadUrl><placeholder name="Download Url - Optional" value="{url}" /></FixedDownloadUrl>
    <Name><placeholder name="Name" value="javaruntime" /></Name>
  </ApplicationJob>
</Jobs>]]></SourceTemplate>
    <WebsiteUrl />
    <UserAgent>Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.168 Safari/535.19</UserAgent>
    <UserNotes />
    <LastFileSize>29458856</LastFileSize>
    <LastFileDate>2014-09-29T19:06:45+02:00</LastFileDate>
    <IgnoreFileInformation>false</IgnoreFileInformation>
    <DownloadBeta>Default</DownloadBeta>
    <DownloadDate xsi:nil="true" />
    <CheckForUpdatesOnly>false</CheckForUpdatesOnly>
    <VariableChangeIndicator />
    <CanBeShared>true</CanBeShared>
    <ShareApplication>false</ShareApplication>
    <ExclusiveDownload>false</ExclusiveDownload>
    <HttpReferer />
    <SetupInstructions />
    <Variables>
      <item>
        <key>
          <string>version</string>
        </key>
        <value>
          <UrlVariable>
            <RegexRightToLeft>false</RegexRightToLeft>
            <VariableType>Textual</VariableType>
            <Regex />
            <Url />
            <StartText>&lt;TABLE cellspacing ="1" cellpadding ="6" border = "0"&gt;
  &lt;TR&gt;
    &lt;TH class="Title" align="center" width=90&gt;7-Zip </StartText>
            <EndText>&lt;BR&gt;</EndText>
            <TextualContent>{textVersion:regexreplace:(\d) Update (\d+):$1.0.$2}</TextualContent>
            <Name>version</Name>
          </UrlVariable>
        </value>
      </item>
      <item>
        <key>
          <string>url64</string>
        </key>
        <value>
          <UrlVariable>
            <RegexRightToLeft>false</RegexRightToLeft>
            <VariableType>StartEnd</VariableType>
            <Regex />
            <Url>https://www.java.com/en/download/manual_java7.jsp</Url>
            <StartText>&lt;a title="Download Java software for Windows (64-bit)" href="</StartText>
            <EndText>"&gt;</EndText>
            <TextualContent />
            <Name>url64</Name>
          </UrlVariable>
        </value>
      </item>
      <item>
        <key>
          <string>url</string>
        </key>
        <value>
          <UrlVariable>
            <RegexRightToLeft>false</RegexRightToLeft>
            <VariableType>StartEnd</VariableType>
            <Regex />
            <Url>https://www.java.com/en/download/manual_java7.jsp</Url>
            <StartText>&lt;a title="Download Java software for Windows Offline" href="</StartText>
            <EndText>"&gt;</EndText>
            <Name>url</Name>
          </UrlVariable>
        </value>
      </item>
      <item>
        <key>
          <string>textVersion</string>
        </key>
        <value>
          <UrlVariable>
            <RegexRightToLeft>false</RegexRightToLeft>
            <VariableType>StartEnd</VariableType>
            <Regex>version 7 update 71</Regex>
            <Url>https://www.java.com/en/download/manual_java7.jsp</Url>
            <StartText>&lt;h4 class="sub"&gt;Recommended Version </StartText>
            <EndText>&lt;/h4&gt;</EndText>
            <Name>textVersion</Name>
          </UrlVariable>
        </value>
      </item>
    </Variables>
    <ExecuteCommand />
    <ExecutePreCommand>chocopkgup /p javaruntime-platformspecific /v {version} /u "{preupdate-url}" /u64 "{url64}" /pp "{file}"
REM /disablepush</ExecutePreCommand>
    <ExecuteCommandType>Batch</ExecuteCommandType>
    <ExecutePreCommandType>Batch</ExecutePreCommandType>
    <Category />
    <SourceType>FixedUrl</SourceType>
    <PreviousLocation>C:\Chocolatey\_work\jre-7u71-windows-i586.exe</PreviousLocation>
    <DeletePreviousFile>true</DeletePreviousFile>
    <Enabled>true</Enabled>
    <FileHippoId />
    <LastUpdated>2014-10-15T21:06:23.4943118+02:00</LastUpdated>
    <TargetPath>C:\Chocolatey\_work\</TargetPath>
    <FixedDownloadUrl>{url}</FixedDownloadUrl>
    <Name>javaruntime</Name>
  </ApplicationJob>
</Jobs>

try {

  $scriptDir = $(Split-Path -parent $MyInvocation.MyCommand.Definition)
  # Import function to test if JRE in the same version is already installed
  Import-Module (Join-Path $scriptDir 'thisJreInstalled.ps1')

  $packageName = 'javaruntime'
  # Find download URLs at http://www.java.com/en/download/manual.jsp
  $url = 'http://javadl.sun.com/webapps/download/AutoDL?BundleId=97807'
  $url64 = 'http://javadl.sun.com/webapps/download/AutoDL?BundleId=97809'
  $version = '7.0.71'
  $versionMajor = $version -replace '^(\d+)\..*', '$1'
  $installerType = 'exe'
  $installArgs = '/s REBOOT=Suppress SPONSORS=0'

  # If both 32- and 64-bit versions are installed, it adds only the folder
  # of the 64-bit version to the env variables
  $javaHome = Join-Path $env:ProgramFiles "Java\jre$versionMajor"
  $jreForPathVariable = Join-Path $javaHome 'bin'

  $thisJreInstalledHash = thisJreInstalled($version)
  $osBitness = Get-ProcessorBits

  # This is the code for both javaruntime and javaruntime-platformspecific packages.
  # If the package is javaruntime-platformspecific, only install the jre version
  # based on the OS bitness, otherwise install both 32- and 64-bit versions
  if ($packageName -match 'platformspecific') {

    if ($thisJreInstalledHash.x86_32 -or $thisJreInstalledHash.x86_64) {
      Write-Output "Java Runtime Environment $version is already installed. Skipping download and installation to avoid 1603 errors."
    } else {
      Install-ChocolateyPackage $packageName $installerType $installArgs $url $url64
    }

  } else {
    # Otherwise it is the javaruntime package which installs both 32- and 64-bit jre versions on 64-bit systems

    # Checks if JRE 32/64-bit in the same version is already installed,
    # otherwise it downloads and installs it.
    # This is to avoid unnecessary downloads and 1603 errors.
    if ($thisJreInstalledHash.x86_32) {
      Write-Output "Java Runtime Environment $version (32-bit) is already installed. Skipping download and installation"
    } else {
      Install-ChocolateyPackage $packageName $installerType $installArgs $url
    }

    # Only check for the 64-bit version if the system is 64-bit

    if ($osBitness -eq 64) {
      if ($thisJreInstalledHash.x86_64) {
        Write-Output "Java Runtime Environment $version (64-bit) is already installed. Skipping download and installation"
      } else {
        # Here $url64 is used twice to obtain the correct message from Chocolatey
        # that it installed the 64-bit version, otherwise it would display 32-bit,
        # regardless of the actual bitness of the software.
        Install-ChocolateyPackage $packageName $installerType $installArgs $url64 $url64
      }
    }
  }

  # Only set the entry for the PATH variable and the JAVA_HOME env variable
  # if the same version of JRE was not already installed (32- or 64-bit separately)
  if (!($thisJreInstalledHash.x86_32) -or !($thisJreInstalledHash.x86_64)) {

    Install-ChocolateyPath $jreForPathVariable 'Machine'
    Start-ChocolateyProcessAsAdmin @"
[Environment]::SetEnvironmentVariable('JAVA_HOME', '$javaHome', 'Machine')
"@
  }

} catch {
  Write-ChocolateyFailure $packageName $($_.Exception.Message)
  throw
}

# This function checks if the same version of JRE is already installed on the computer.
# It returns a hash map with a 'x86_32' and 'x86_64'. These values are not empty if the
# same version and bitness of JRE is already installed.
function thisJreInstalled($version) {
  $productSearch = Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -match '^Java \d+ Update \d+'}

  # The regexes for the name of the JRE registry entries (32- and 64 bit versions)
  $nameRegex32 = '^Java \d+ Update \d+$'
  $nameRegex64 = '^Java \d+ Update \d+ \(64-bit\)$'
  $versionRegex = $('^' + $version + '\d*$')


  return @{
    'x86_32' = $productSearch | Where-Object {$_.Name -match $nameRegex32 -and $_.Version -match $versionRegex}
    'x86_64' = $productSearch | Where-Object {$_.Name -match $nameRegex64 -and $_.Version -match $versionRegex}
  }
}