Download All RDL Files

The following is a great PowerShell Script for downloading all RDL files from the ReportServer Database.  Without a script to download the RDL files you would have to go into each report from the Web Interface and select Download.  This script could save days worth of work.


<# .SYNOPSIS
      Export of all SSRS reports datasources and images
   .DESCRIPTION
      This PowerShell script exports all (or filtered) reports, data sources and images directly from the ReportServer database
      to a specified folder. For the file name the complete report path is used; for file name invalid characters are replaced with a -.
      Reports are exported with .rdl as extension, data sources with .rds and resources without any additional extension.
      Please change the "Configuration data" below to your enviroment.
      Works with SQL Server 2005 and higher versions in all editions.
      Requires SELECT permission on the ReportServer database.
   .NOTES
      Author  : Olaf Helper
      Requires: PowerShell Version 1.0, Ado.Net assembly
   .LINK
      GetSqlBinary: http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqldatareader.getsqlbinary.aspx
#>


# Configuration data
[string] $server   = "ServerName";        # SQL Server Instance.
[string] $database = "ReportServer";        # ReportServer Database.
[string] $folder   = "\\Some Location";          # Path to export the reports to.

# Select-Statement for file name & blob data with filter.
$sql = "SELECT CT.[Path]
              ,CT.[Type]
              ,CONVERT(varbinary(max), CT.[Content]) AS BinaryContent
        FROM dbo.[Catalog] AS CT
        WHERE CT.[Type] IN (2, 3, 5)";

# Open ADO.NET Connection with Windows authentification.
$con = New-Object Data.SqlClient.SqlConnection;
$con.ConnectionString = "Data Source=$server;Initial Catalog=$database;Integrated Security=True;";
$con.Open();

Write-Output ((Get-Date -format yyyy-MM-dd-HH:mm:ss) + ": Started ...");

# New command and reader.
$cmd = New-Object Data.SqlClient.SqlCommand $sql, $con;
$rd = $cmd.ExecuteReader();

$invalids = [System.IO.Path]::GetInvalidFileNameChars();
# Looping through all selected datasets.
While ($rd.Read())
{
    Try
    {
        # Get the name and make it valid.
        $name = $rd.GetString(0);
        foreach ($invalid in $invalids)
           {    $name = $name.Replace($invalid, "-");    }

        If ($rd.GetInt32(1) -eq 2)
            {    $name = $name + ".rdl";    }
        ElseIf ($rd.GetInt32(1) -eq 5)
            {    $name = $name + ".rds";    }

        Write-Output ((Get-Date -format yyyy-MM-dd-HH:mm:ss) + ": Exporting {0}" -f $name);

        $name = [System.IO.Path]::Combine($folder, $name);

        # New BinaryWriter; existing file will be overwritten.
        $fs = New-Object System.IO.FileStream ($name), Create, Write;
        $bw = New-Object System.IO.BinaryWriter($fs);

        # Read of complete Blob with GetSqlBinary
        $bt = $rd.GetSqlBinary(2).Value;
        $bw.Write($bt, 0, $bt.Length);
        $bw.Flush();
        $bw.Close();
        $fs.Close();
    }
    Catch
    {
        Write-Output ($_.Exception.Message)
    }
    Finally
    {
        $fs.Dispose();
    }
}

# Closing & Disposing all objects
$rd.Close();
$cmd.Dispose();
$con.Close();
$con.Dispose();

Write-Output ((Get-Date -format yyyy-MM-dd-HH:mm:ss) + ": Finished");

Reference:
https://gallery.technet.microsoft.com/scriptcenter/Export-of-all-SSRS-reports-57910227