updated SecurityProtocol; Get-RemoteFiles

AU/Public/Get-RemoteFiles.ps1

@@ -0,0 +1,76 @@
+# Author: Miodrag Milic <[email protected]>
+# Last Change: 19-Dec-2016.
+
+<#
+.SYNOPSIS
+   Get Latest URL32 and/or URL64 into tools directxory.
+
+.DESCRIPTION
+   This function will download the binaries pointed to by $Latest.URL32 and $Latest.URL34.
+   The function is used to embed binaries into the Chocolatey package.
+
+   The function will keep original remote file name but it will add suffix _x32 or _x64.
+   This is intentional because you can use those to match particular installer via wildcards,
+   e.g. `gi *_x32.exe`.
+
+#>
+function Get-Embedded {
+    param (
+        # Delete existing file having $Latest.FileType extension.
+        # Otherwise, when state of the package remains after the update, older installers
+        # will pile up and may get included in the updated package.
+        [switch] $Purge,
+
+        # Override remote file name, use this one as a base. Suffixes _x32/_x64 are added.
+        # Use this parameter if remote URL doesn't contain file name but generated hash.
+        [string] $FileNameBase,
+
+        # By default last URL part is used as a file name. Use this paramter to skip parts 
+        # if file name is specified earlier in the path.
+        [int]    $FileNameSkip=0
+    )
+
+    function name4url($url) {
+        if ($FileNameBase) { return $FileNameBase }
+        $res = $url -split '/' | select -Last 1 -Skip $FileNameSkip
+        $res -replace '\.[a-zA-Z]+$'
+    }
+
+    function ext() {
+        if ($Latest.FileType) { return $Latest.FileType }
+        $url = $Latest.Url32; if (!$url) { $url = $Latest.Url64 }
+        if ($url -match '(?<=\.)[^.]+$') { return $Matches[0] }
+    }
+
+    $ext = ext
+    if (!$ext) { throw 'Unknown file type' }
+
+    if ($Purge) {
+        Write-Host 'Purging' $ext
+        rm -Force "$PSScriptRoot\tools\*.$ext"
+    }
+
+    try {
+        $client = New-Object System.Net.WebClient
+
+        if ($Latest.Url32) {
+            $base_name = name4url $Latest.Url32
+            $file_name = "{0}_x32.{1}" -f $base_name, $ext
+            $file_path = "$PSScriptRoot\tools\$file_name"
+
+            Write-Host "Downloading to $file_name -" $Latest.Url32
+            $client.DownloadFile($Latest.URL32, $file_path)
+            $Latest.Checksum32 = Get-FileHash $file_path | % Hash
+        }
+
+        if ($Latest.Url64) {
+            $base_name = name4url $Latest.Url64
+            $file_name = "{0}_x64.{1}" -f $base_name, $ext
+            $file_path = "$PSScriptRoot\tools\$file_name"
+
+            Write-Host "Downloading to $file_name -" $Latest.Url64
+            $client.DownloadFile($Latest.URL64, $file_path)
+            $Latest.Checksum64 = Get-FileHash $file_path | % Hash
+        }
+    } finally { $client.Dispose() }
+}

AU/Public/Update-Package.ps1

@@ -1,5 +1,5 @@
 # Author: Miodrag Milic <[email protected]>
-# Last Change: 13-Dec-2016.
+# Last Change: 19-Dec-2016.
 
 <#
 .SYNOPSIS
@@ -300,6 +300,7 @@ function Update-Package {
         $global:Latest.NuspecVersion = $package.NuspecVersion = '0.0'
     }
 
+    [System.Net.ServicePointManager]::SecurityProtocol = 'Ssl3,Tls,Tls11,Tls12' #https://github.com/chocolatey/chocolatey-coreteampackages/issues/366
     $module = $MyInvocation.MyCommand.ScriptBlock.Module
     "{0} - checking updates using {1} version {2}" -f $package.Name, $module.Name, $module.Version | result
     try {

CHANGELOG.md

@@ -1,5 +1,16 @@
 # AU Project Changelog
 
+## NEXT
+
+- New function `Get-RemoteFiles`. See [documentation](https://github.com/majkinetor/au#embedding-binaries).
+- `Update-Package`
+  - Support newer TLS version support by setting the `SecurityProtocol` property of `ServicePointManager`.
+  - Added new function `Convert-ToEmbedded`.
+
+### Bugfixes
+
+- Fix encoding of nuspec (UTF-8 NO BOM) and ps1 (UTF-8 BOM) files.
+
 ## 2016.12.17
 
 **NOTE**: Minimal PowerShell version required to run AU is now 5.0 instead of 4.0. This wont affect AppVeyor builds, but might affect local runs. Please update your local PowerShell version (`cinst powershell`) if you run it locally.

README.md

@@ -255,6 +255,26 @@ Metapackages can reuse an AU updater of its dependency by the following way:
 
 This is best understood via example - take a look at the [cpu-z](https://github.com/majkinetor/au-packages/blob/master/cpu-z/update.ps1) AU updater which uses the updater from the [cpu-z.install](https://github.com/majkinetor/au-packages/blob/master/cpu-z.install/update.ps1) package on which it depends. It overrides the `au_SearchReplace` function and the `update` call but keeps the `au_GetLatest`.
 
+
+### Embedding binaries
+
+Embedded packages do not download software from the Internet but contain binaries inside the package. This makes package way more stable as it doesn't depend on the network for installation. AU function `Get-RemoteFiles` can download files and save them in the package's `tools` directory. It does that by using the `$Latest.URL32` and/or `$Latest.URL64`. 
+
+The following example downloads files inside `au_BeforeUpdate` function which is called before the package files are updated with the latest data (function is not called if no update is available): 
+
+```powershell
+...
+
+function au_BeforeUpdate() {
+    #Download $Latest.URL32 / $Latest.URL64 in tools directory and remove any older installers.
+    Get-RemoteFiles -Purge
+}
+
+...
+```
+
+This function will also set the appropriate `$Latest.ChecksumXX`.
+
 ## Updating all packages
 
 You can update all packages and optionally push them to the Chocolatey repository with a single command. Function `Update-AUPackages` (alias `updateall`) will iterate over `update.ps1` scripts and execute each in a separate thread. If it detects that a package is updated it will optionally try to push it to the Chocolatey repository and may also run configured plugins.