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OpenAntrag/OpenAntragLib/UrlShortener.vb

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Imports System.Net
Imports System.Text
Public Class UrlShortener
Public Shared Function GetShortUrl(strFullUrl As String) As String
Const strRequestUrl As String = "http://pirat.ly/shortener/api/createplain/{ApiKey}/?{Url}"
Dim strRetVal As String = ""
Dim stbUrl As New StringBuilder(strRequestUrl)
stbUrl.Replace("{ApiKey}", SettingsWrapper.PiratlyApiKey)
stbUrl.Replace("{Url}", strFullUrl)
Try
Dim req As HttpWebRequest = HttpWebRequest.Create(stbUrl.ToString)
req.Method = "GET"
req.ContentType = "text/xml; encoding='utf-8'"
req.Timeout = 1000
Dim res As HttpWebResponse = req.GetResponse()
Dim rd As New IO.StreamReader(res.GetResponseStream())
strRetVal = rd.ReadToEnd
If strRetVal.StartsWith("http://pirat.ly") = False Then strRetVal = ""
Catch ex As Exception
'TODO: GetShortUrl-Errors
End Try
Return strRetVal
End Function
End Class