Get-MinecraftSkin.ps1

#Get-MinecraftSkin.ps1 - jorgtheelder@outlook.com 2018

param (

  [Parameter(Mandatory)]
  [string]$username

)

$ErrorActionPreference = 'Stop';

$uri1 = 'https://api.mojang.com/users/profiles/minecraft/';
$uri2 = 'https://sessionserver.mojang.com/session/minecraft/profile/';

$rest1 = $uri1 + $username;

'Looking up UUID for: ' + $username;

$result = Invoke-RestMethod $rest1;

$name = $result.name;
$uuid = $result.id;

if($name -and $uuid -and $uuid -match '^[0-9a-z]+$') {

  'Name: ' + $name;
  'UUID: ' + $uuid;
  $file = $name + '.jpg';

  $rest2 = $uri2 + $uuid;

  'Getting textures struct';

  $result2 = Invoke-RestMethod $rest2;

  if($result2.properties.name -eq 'textures') {

    $info = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($result2.properties.value)) | ConvertFrom-Json;

    $skinUri = $info.textures.skin.url;

    if(-not($skinUri -match 'textures.minecraft.net')) {

      throw 'Textures struct did not contain a valid SKIN uri';

    }

    'Getting skin and saving to file: ' + $file;

    Invoke-WebRequest -Uri $skinUri -UseBasicParsing -OutFile $file;

    'Done';

  } else {

    throw 'Unable to retreive textures';

  }


} else {

  throw 'Failed to retreive user info for: ' + $username;

}