Is there any command equivalent to webget in WindOS's PowerShell?
I am trying to create a script to download all publicly available files from the website. I am making the custom script because I need to store the files in specific directory structure (depending on name, type and size).
In PowerShell v2, use a WebClient:
(New-Object System.Net.WebClient).DownloadFile($url, $localFileName)
In v3, the Invoke-WebResquest cmdlet:
Invoke-WebRequest -Uri $url -OutFile $localFileName
Another option is with the Start-BitsTransfer cmdlet:
Start-BitsTransfer -Source $source -Destination $destination
In PowerShell V3, you can use the new cmdlet Invoke-WebRequest to send an http or https request to a web site/service e.g.:
$r = Invoke-WebRequest -URI http://www.bing.com?q=how+many+feet+in+a+mile
However to specifically download a file it is probably easiest to use the .NET API WebClient.DownloadFile() e.g.:
$remoteUri = "http://upload.wikimedia.org/wikipedia/commons/6/63/Wikipedia-logo.png"
$fileName = "$pwd\logo.png"
$webClient = new-object System.Net.WebClient
$webClient.DownloadFile($remoteUri, $fileName)
you can use the .NET class WebClient to download files.
PS > $source = "http://www.unsite.fr/untruc.zip"
PS > $destination = "c:\temp\untruc.zip"
PS >
PS >$wc = New-Object System.Net.WebClient
PS >$wc.DownloadFile($source, $destination)
If you prefer a "native" PowerShell cmdlet that works in PowerShell V2 or V3, I recommend Get-HttpResource from the PowerShell Community Extensions (PSCX). While PSCX surprisingly does not have the API available online (you have to install the extensions then you can use the normal PowerShell help to explore each command), I managed to find the API for Get-HttpResource here. Using the cmdlet can be as simple as this:
$myPage = Get-HttpResource http://blogs.msdn.com/powershell
However, there are a variety of parameters to the cmdlet that let you specify media type, credentials, encoding, proxy, user agent, and more.
Related
I have a URL to a CSV file which, in a browser, I can download and open without issue.
I'm trying to download this file using PowerShell without success. I tried using Invoke-WebRequest, Start-BitsTransfer and using a webrequest object but no luck there.
Invoke-WebRequest comes with a parameter to store its result in a file: -OutFile
Invoke-WebRequest $myDownloadUrl -OutFile c:\file.ext
If you need authorization before you can send a request like this:
Invoke-WebRequest $myAuthUrl /* whatever is neccesary to login */ -SessionVariable MySession
Invoke-WebRequest $myDownloadUrl -WebSession $MySession
To determine the layout of the form where the login happens, you can use Invoke-WebRequests return object. It'll collect information about forms and fields on the HTML (might be Windows only). Mileage of logging in may vary with things like Two-Factor-Auth active or not. Probably you can create some secret link to your file which does not need Auth or possibly google allows you to create a private access token of some sort, which can be send aus Authorization-Header alongside your request.
TLDR answers*:
Method 1, by default synchronous**
Invoke-WebRequest $url -OutFile $path_to_file
(if you get error "...Could not create SSL/TLS secure channel." see Powershell Invoke-WebRequest Fails with SSL/TLS Secure Channel)
Method 2, by default synchronous**
(New-Object System.Net.WebClient).DownloadFile($url, $path_to_file)
Method 3, asynchronous and may be much slower than the other two but is very gentle on bandwidth usage (it uses the BITS service).
Import-Module BitsTransfer
Start-BitsTransfer -Source $url -Destination $path_to_file
Notes:
*: This answer is for those that google for "how to download a file with PowerShell".
**: Read the help pages if you want asynchronous downloading
For a while now I've been using a PS script to download PowerBI bi-monthly and using the BITS, it's been pretty solid and now so much stronger now since I removed the -Asynchronous at the end of the Start-BitsTransfer
$url = "https://download.microsoft.com/download/8/8/0/880BCA75-79DD-466A-927D-1ABF1F5454B0/PBIDesktopSetup.exe"
$output = "%RandomPath%\PowerBI Pro\PBIDesktopSetup.exe"
$start_time = Get-Date
Import-Module BitsTransfer
Start-BitsTransfer -Source $url -Destination $output
#Commented out below because it kept creating "Tmp files"
#Start-BitsTransfer -Source $url -Destination $output -Asynchronous
I'm trying to create a new release task for VSTS which needs to download a secure file from the library. However, when I run the following PowerShell script no secure files are displayed but there are two in there. Could this be not having enough rights? What should be changed.
Another question: when I'm able to list the secure files I want to download a specific one. I haven't found any examples on how to do that. Does anyone know of an example?
$url = "$($env:SYSTEM_TEAMFOUNDATIONCOLLECTIONURI)$env:SYSTEM_TEAMPROJECTID/_apis/distributedtask/securefiles"
Write-Host "URL: $url"
$secureFiles = Invoke-RestMethod -Uri $url -Headers #{
Authorization = "Bearer $env:SYSTEM_ACCESSTOKEN"
}
Write-Host "SecureFiles: $secureFiles"
I was able to download Secure Files using a REST API, the task's Access Token, and an Accept header for application/octet-stream. I enabled "Allow scripts to access the OAuth token". Here my task.json is using a secureFile named "SecureFile."
$secFileId = Get-VstsInput -Name SecureFile -Require
$secTicket = Get-VstsSecureFileTicket -Id $secFileId
$secName = Get-VstsSecureFileName -Id $secFileId
$tempDirectory = Get-VstsTaskVariable -Name "Agent.TempDirectory" -Require
$collectionUrl = Get-VstsTaskVariable -Name "System.TeamFoundationCollectionUri" -Require
$project = Get-VstsTaskVariable -Name "System.TeamProject" -Require
$filePath = Join-Path $tempDirectory $secName
$token= Get-VstsTaskVariable -Name "System.AccessToken" -Require
$user = Get-VstsTaskVariable -Name "Release.RequestedForId" -Require
$base64AuthInfo = [Convert]::ToBase64String([Text.Encoding]::ASCII.GetBytes(("{0}:{1}" -f $User, $token)))
$headers = #{
Authorization=("Basic {0}" -f $base64AuthInfo)
Accept="application/octet-stream"
}
Invoke-RestMethod -Uri "$($collectionUrl)$project/_apis/distributedtask/securefiles/$($secFileId)?ticket=$($secTicket)&download=true&api-version=5.0-preview.1" -Headers $headers -OutFile $filePath
I am using "$(Build.QueuedById)" to get the user id in build tasks, but honestly I don't think it matters what string you use there.
If you don't have the Accept header, you'll get JSON metadata back for the file you're attempting to download.
Unfortunately I cobbled this together from other SO posts and the github issues pages; I can't find anywhere official that documents the URL I'm using there.
There has no such REST API to download secure file, but you can use Download secure file task for assistants.
And since the secure file only exist in temporary location during build, you should download the secure file by Download secure file task firstly, and copy the secure file to another directory secondly:
1. Download secure file
You can add a Download secure file task (for VSTS) and specify the filename to download.
Note: since the task is not available for TFS, you can install the similar task like Download Secure File extension for your TFS account.
2. Copy secure file to another directory
Such as copy the secure file to $(Build.ArtifactStagingDirectory), you can use PowerShell script:
Copy-Item -Path $(Agent.WorkFolder)\_temp\filename -Destination $(Build.ArtifactStagingDirectory)
Or use Copy Files task to copy the secure file to $(Build.ArtifactStagingDirectory).
BTW:
Since you are using Download Secure File task (developed by Matt Labrum) which can only select secure file from DropDownList (variables can not be used). But there has an issue Enable to use a variable to specify the secure file to download which suggests this feature, you can follow up.
And for the REST API to download secure file, it's not available for now. But there has an user voice Access "Secure files" from .NET client library, and you can vote and follow up.
$Interweb = Join-Path $env:USERPROFILE 'downloads\filename.exe'
Invoke-WebRequest -Uri "http://urldownload.exe" -OutFile $Interweb
Currently the above works in PS v2.0 however im trying to run this on machines with a lower version. Is there a way to do this in PS v1.0?
It is possible decode (or show what to do) command Powershell?
I try use command connect-msolservice, but i get exceptions:
.
So maybe if I get content command, i can configure system to this connection.
Yes, you can use ILSpy to decode powershell dll. Download ILSpy.
For find path .dll with your cmdlets, use powershell command:
Get-Command connect-msolservice | fl DLL,ImplementingType
Or you can use a native solution to view the Metadata of the builtin (or any other cmdlets)
$Metadata = New-Object System.Management.Automation.CommandMetaData (Get-Command Connect-MSOLService)
$Contents = [System.Management.Automation.ProxyCommand]::Create($Metadata)
credit to http://windowsitpro.com/blog/powershell-proxy-functions
I am working in a script, where I am able to browse the web content or the 'url' but I am not able to copy the web content in it & download as a file.
This is what I have made so far:
$url = "http://sp-fin/sites/arindam-sites/_layouts/xlviewer.aspx?listguid={05DA1D91-F934-4419-8AEF-B297DB81A31D}&itemid=4&DefaultItemOpen=1"
$ie=new-object -com internetexplorer.application
$ie.visible=$true
$ie.navigate($url)
while($ie.busy) {start-sleep 1}
How can I copy the content of $url and save it to local drive as a file?
Update:
I got these errors:
Exception calling "DownloadFile" with "2" argument(s): "The remote server returned an error: (401) Unauthorized." At :line:6 char:47 + (New-Object system.net.webclient).DownloadFile( <<<< "$url/download-url-content", 'save.html' )
Missing ')' in method call. At :line:6 char:68 + (New-Object system.net.webclient).DownloadFile( "$url", 'save.html' <<<<
Exception calling "DownloadFile" with "2" argument(s): "The remote server returned an error: (401) Unauthorized." At :line:6 char:47 + (New-Object system.net.webclient).DownloadFile( <<<< "$url", 'save.html' )
Ok, let me explain more, on what I am trying to do: I have a excel file in our share point site & this is the file I am trying to download locally(any format), which is a part of the script, so that for the later part of the script, I can compare this file with other data & get an output.
Now if I can somehow map "my documents" from the site & able to download the file, that will also work for me.
Update Jan 2014: With Powershell v3, released with Windows 8, you can do this:
(Invoke-webrequest -URI "http://www.kernel.org").Content
Original Post, valid for Powershell Version 2
This solution is very similar to the other answers from stej, Jay Bazusi and Marco Shaw.
It is a bit more general, by installing a new module into your module directory, psurl. The module psurl adds new commands in case you have to do a lot of html-fetching (and POSTing) with powershell.
(new-object Net.WebClient).DownloadString("http://psget.net/GetPsGet.ps1") | iex
See the homepage of the code-sharing website http://psget.net/.
This nice line of PowerShell script will dowload GetPsGet.ps1 and send
it to Invoke-Expression to install PsGet Module.
Then install PsUrl, a Powershell Module inspired by curl:
To install something (in our case PsUrl) from central directory just type:
install-module PsUrl
get-module -name psurl
Output:
ModuleType Name ExportedCommands
---------- ---- ----------------
Script psurl {Get-Url, Send-WebContent, Write-Url, Get-WebContent}
Command:
get-command -module psurl
Output:
CommandType Name Definition
----------- ---- ----------
Function Get-Url ...
Function Get-WebContent ...
Alias gwc Get-WebContent
Function Send-WebContent ...
Alias swc Send-WebContent
Function Write-Url ...
You need to do this only once.
Note that this error might occur:
Q: Error "File xxx cannot be loaded because the execution of scripts is disabled on this system. Please see "get-help about_signing" for more details."
A: By default, PowerShell restricts execution of all scripts. This is all about security. To "fix" this run PowerShell as Administrator and call
Set-ExecutionPolicy RemoteSigned
From now on, in your new powershell sessions/scripts, do this:
import-module psurl
get-url "http://www.google.com"
To download and save to a file, do this:
get-url "http://www.google.com" | out-file -filepath "myfile.html"
As I understand it, you try to use IE because if automatically sends your credentials (or maybe you didn't know of any other option).
Why the above answers don't work is because you try to download file from SharePoint and you send an unauthenticated request. The response is 401.
This works:
PS>$wc=new-object system.net.webclient
PS>$wc.UseDefaultCredentials = $true
PS>$wc.downloadfile("your_url","your_file")
if the the current user of Posh has rights to download the file (is the same as the logged one in IE).
If not, try this:
PS>$wc=new-object system.net.webclient
PS>$wc.Credentials = Get-Credential
PS>$wc.downloadfile("your_url","your_file")
If you just want to download web content, use
(New-Object System.Net.WebClient).DownloadFile( 'download url content', 'save.html' )
I'm not aware of any way to save using that interface.
Does this render the page properly:
PS>$wc=new-object system.net.webclient
PS>$wc.downloadfile("your_url","your_file")
As already answered in https://stackoverflow.com/a/35202299/4636579, but with a mandatory Proxy and the credentials. Without proxy, it would be:
$url="http://aaa.bbb.ccc.ddd/rss.xml"
$WebClient = New-Object net.webclient
$path="C:\Users\hugo\xml\test.xml"
$WebClient.DownloadFile($url, $path)
$web = New-Object Net.WebClient
$web | Get-Member
$content=$web.DownloadString("http://www.bing.com")
If you're truly only concerned with the raw string content, the best route, as mentioned by a few others, is using the constructs within .NET to do this. However, I think in the previous answers a few opportunities are missed.
It's often best to use WebRequest over WebClient as it provides better control over the entire request cycle
Response buffering via System.IO.StreamReader, made possible by using WebRequest
Creating a testable, reusable tool. Which is the very nature and purpose of PowerShell
function Get-UrlContent {
<#
.SYNOPSIS
High performance url fetch
.DESCRIPTION
Given a url, will return raw content as string.
Uses:
System.Net.HttpRequest
System.IO.Stream
System.IO.StreamReader
.PARAMETER Url
Defines the url to download
.OUTPUTS
System.String
.EXAMPLE
PS C:\> Get-UrlContent "https://www.google.com"
"<!doctype html>..."
#>
[cmdletbinding()]
[OutputType([String])]
param(
[Parameter(Mandatory, ValueFromPipeline)]
[ValidateNotNullOrEmpty()]
[string] $Url)
Write-Debug "`n----- [Get-UrlContent]`n$url`n------`n`n"
$req = [System.Net.WebRequest]::CreateHttp($url)
try {
$resp = $req.GetResponse()
}
catch {
Write-Debug "`n------ [Get-UrlContent]`nDownload failed: $url`n------`n"
}
finally {
if ($resp) {
$st = $resp.GetResponseStream()
$rd = [System.IO.StreamReader]$st
$rd.ReadToEnd()
}
if ($rd) { $rd.Close() }
if ($st) { $st.Close() }
if ($resp) { $resp.Close() }
}
}