Out-RssFeed.ps1
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function Out-RssFeed { <# .Synopsis Outputs RSS items into an RSS feed .Description Outputs RSS items into an RSS feed. Items can be easily created with New-RssItem .Example New-RssItem -Title "My Vacation" -Category Stupid, Stuff -Link http://bit.ly/myvacation -Author Bob -Description "Stuff I did on my vacation" | Out-RssFeed -Title "My Blog" -Description "Things I Decided To Say to the World" -Link "http://my.blog" .Link New-RssItem #> [OutputType([String])] param( # An Rss Item [Parameter(Mandatory=$true,ValueFromPipeline=$true)] [ValidateScript({ $asXml = $_ -as [xml] if ((-not $asxml.Item)) { throw "The root of a format XML most be an item element" } return $true })] [string[]] $Item, # The title of the RSS feed [Parameter(Mandatory=$true)] [string]$Title, # The description of the RSS feed [Parameter(Mandatory=$true)] [string]$Description, # The date the feed was published [DateTime]$DatePublished = [DateTime]::UtcNow, # A Link to the feed page [Parameter(Mandatory=$true)] [Uri]$Link ) begin { $rssItems = New-Object Collections.ArrayList } process { $null = $rssItems.Add(($Item -join " ")) } end { $rssXml = [xml]@" <rss version="2.0"> <channel> <title>$([Security.SecurityElement]::Escape($title))</title> <creator>$([Security.SecurityElement]::Escape($Author))</creator> <pubDate>$($DatePublished.ToString('r'))</pubDate> <description>$([Security.SecurityElement]::Escape($description))</description> <link>$([Security.SecurityElement]::Escape($link))</link> $($rssItems -join '') </channel> </rss> "@ if (-not $rssXml) { return } $strWrite = New-Object IO.StringWriter $rssXml.Save($strWrite) $prettyXml = "$strWrite" $prettyXml.Substring($prettyXml.IndexOf(">") + 3) } } |