Common/Download-File.ps1
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<#
.Synopsis Download File .Description Download a file to local computer .Parameter sourceUrl Url from which the file will get downloaded .Parameter destinationFile Destinatin for the downloaded file .Parameter description Description for the download process .Parameter Headers Specify a custom header for the request .Parameter dontOverwrite Specify dontOverwrite if you want top skip downloading if the file already exists .Parameter timeout Timeout in seconds for the download .Example Download-File -sourceUrl "https://myurl/file.zip" -destinationFile "c:\temp\file.zip" -dontOverwrite #> function Download-File { Param ( [Parameter(Mandatory=$true)] [string] $sourceUrl, [Parameter(Mandatory=$true)] [string] $destinationFile, [string] $description = '', [hashtable] $headers = @{"UserAgent" = "BcContainerHelper $bcContainerHelperVersion" }, [switch] $dontOverwrite, [int] $timeout = $bccontainerHelperConfig.defaultDownloadTimeout ) $replaceUrls = @{ "https://go.microsoft.com/fwlink/?LinkID=844461" = "https://bcartifacts.azureedge.net/prerequisites/DotNetCore.1.0.4_1.1.1-WindowsHosting.exe" "https://download.microsoft.com/download/C/9/E/C9E8180D-4E51-40A6-A9BF-776990D8BCA9/rewrite_amd64.msi" = "https://bcartifacts.azureedge.net/prerequisites/rewrite_2.0_rtw_x64.msi" "https://download.microsoft.com/download/5/5/3/553C731E-9333-40FB-ADE3-E02DC9643B31/OpenXMLSDKV25.msi" = "https://bcartifacts.azureedge.net/prerequisites/OpenXMLSDKv25.msi" "https://download.microsoft.com/download/A/1/2/A129F694-233C-4C7C-860F-F73139CF2E01/ENU/x86/ReportViewer.msi" = "https://bcartifacts.azureedge.net/prerequisites/ReportViewer.msi" "https://download.microsoft.com/download/1/3/0/13089488-91FC-4E22-AD68-5BE58BD5C014/ENU/x86/SQLSysClrTypes.msi" = "https://bcartifacts.azureedge.net/prerequisites/SQLSysClrTypes.msi" "https://download.microsoft.com/download/3/A/6/3A632674-A016-4E31-A675-94BE390EA739/ENU/x64/sqlncli.msi" = "https://bcartifacts.azureedge.net/prerequisites/sqlncli.msi" "https://download.microsoft.com/download/2/E/6/2E61CFA4-993B-4DD4-91DA-3737CD5CD6E3/vcredist_x86.exe" = "https://bcartifacts.azureedge.net/prerequisites/vcredist_x86.exe" } if ($replaceUrls.ContainsKey($sourceUrl)) { $sourceUrl = $replaceUrls[$sourceUrl] } # If DropBox URL with dl=0 - replace with dl=1 (direct download = common mistake) if ($sourceUrl.StartsWith("https://www.dropbox.com/","InvariantCultureIgnoreCase") -and $sourceUrl.EndsWith("?dl=0","InvariantCultureIgnoreCase")) { $sourceUrl = "$($sourceUrl.Substring(0, $sourceUrl.Length-1))1" } if (Test-Path $destinationFile -PathType Leaf) { if ($dontOverwrite) { return } Remove-Item -Path $destinationFile -Force } $path = [System.IO.Path]::GetDirectoryName($destinationFile) if (!(Test-Path $path -PathType Container)) { New-Item -Path $path -ItemType Directory -Force | Out-Null } [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12 if ($description) { Write-Host "Downloading $description to $destinationFile" } else { Write-Host "Downloading $destinationFile" } if ($sourceUrl -like "https://*.sharepoint.com/*download=1*") { Invoke-WebRequest -UseBasicParsing -Uri $sourceUrl -OutFile $destinationFile } else { if ($bcContainerHelperConfig.DoNotUseCdnForArtifacts -or $sourceUrl -like 'https://bcinsider*.net/*') { # Do not use CDN when configured or bcinsider $sourceUrl = ReplaceCDN -sourceUrl $sourceUrl -useBlobUrl $timeout += $timeout } try { DownloadFileLow -sourceUrl (ReplaceCDN -sourceUrl $sourceUrl) -destinationFile $destinationFile -dontOverwrite:$dontOverwrite -timeout $timeout -headers $headers } catch { try { $waittime = 2 + (Get-Random -Maximum 5 -Minimum 0) $newSourceUrl = ReplaceCDN -sourceUrl $sourceUrl -useBlobUrl if ($sourceUrl -eq $newSourceUrl) { Write-Host "Error downloading..., retrying in $waittime seconds..." } else { Write-Host "Could not download from CDN..., retrying from blob storage in $waittime seconds..." $timeout += $timeout } Start-Sleep -Seconds $waittime DownloadFileLow -sourceUrl $newSourceUrl -destinationFile $destinationFile -dontOverwrite:$dontOverwrite -timeout $timeout -headers $headers } catch { throw (GetExtendedErrorMessage $_) } } } } Export-ModuleMember -Function Download-File |