Private/ConvertFrom-SourceForgeReleasesJson.ps1
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Function ConvertFrom-SourceForgeReleasesJson { <# .SYNOPSIS Validates a JSON string returned from a SourceForge releases API and returns a formatted object Example: https://api.SourceForge.com/repos/PowerShell/PowerShell/releases/latest #> [OutputType([System.Management.Automation.PSObject])] [CmdletBinding()] Param( [Parameter(Mandatory = $True, Position = 0)] [ValidateNotNullOrEmpty()] [System.String] $Content, [Parameter(Mandatory = $True, Position = 1)] [ValidateNotNullOrEmpty()] [System.String] $MatchVersion, [Parameter(Mandatory = $True, Position = 2)] [ValidateNotNullOrEmpty()] [System.String] $DownloadUri, [Parameter(Mandatory = $False, Position = 3)] [ValidateNotNullOrEmpty()] [System.String] $DatePattern = "yyyy-MM-dd HH:mm:ss" ) # Convert JSON string to a hashtable try { Write-Verbose -Message "$($MyInvocation.MyCommand): Converting from JSON string." $release = ConvertFrom-Json -InputObject $Content } catch { Throw [System.Management.Automation.RuntimeException] "$($MyInvocation.MyCommand): Failed to convert JSON string." Break } finally { # Validate that $release has the expected properties Write-Verbose -Message "$($MyInvocation.MyCommand): Validating SourceForge release object." $requiredProperties = @("release", "platform_releases") $params = @{ ReferenceObject = $requiredProperties DifferenceObject = (Get-Member -InputObject $release -MemberType NoteProperty) PassThru = $True ErrorAction = $script:resourceStrings.Preferences.ErrorAction } $missingProperties = Compare-Object @params If ($Null -ne $missingProperties) { Write-Verbose -Message "$($MyInvocation.MyCommand): Validated successfully." $validate = $True } Else { Write-Verbose -Message "$($MyInvocation.MyCommand): Validation failed." $validate = $False $missingProperties | ForEach-Object { Throw [System.Management.Automation.ValidationMetadataException] "$($MyInvocation.MyCommand): Property: '$_' missing" } } # Find version number try { $Version = [RegEx]::Match($release.release.filename, $MatchVersion).Captures.Groups[1].Value } catch { Write-Verbose -Message "$($MyInvocation.MyCommand): Failed to find version number." $Version = "Unknown" } # Build and array of the latest release and download URLs If ($validate) { # Construct the output; Return the custom object to the pipeline Write-Verbose -Message "$($MyInvocation.MyCommand): Building output object." $PSObject = [PSCustomObject] @{ Version = $Version Platform = (Get-Platform -String $release.release.filename) Architecture = (Get-Architecture -String $release.release.filename) Date = (ConvertTo-DateTime -DateTime $release.release.date -Pattern $DatePattern) Size = $release.release.bytes Md5Hash = $release.release.md5sum URI = "$DownloadUri$($release.release.filename)" } Write-Output -InputObject $PSObject } } } |