Private/Get-SpotifyAccessToken.ps1
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function Get-SpotifyAccessToken { [CmdletBinding()] param ( <# This is the name of the credential you want to use #> [Parameter(Mandatory = $true)] [String] $Name ) if ($IsMacOS -or $IsLinux) { $SpotishellStore = $home + "/" + "/.wardbox/spotishell/" } else { $SpotishellStore = $env:LOCALAPPDATA + "\wardbox\spotishell\" } $AccessTokenStorePath = $SpotishellStore + "access_token\" $AccessTokenFilePath = $AccessTokenStorePath + $Name + ".json" $CredentialStorePath = $SpotishellStore + "credential\" <# Check if we have a valid access token already #> if (!(Test-Path -Path $AccessTokenStorePath)) { <# There is no access token store, let's try to make one. #> try { Write-Verbose "Attempting to create access token store at $AccessTokenStorePath" New-Item -Path $AccessTokenStorePath -ItemType Directory -ErrorAction Stop Write-Verbose "Successfully created access token store at $AccessTokenStorePath" } catch { Write-Warning "Failed attempting to create access token store at $AccessTokenStorePath" Write-Warning "Check error for more details." break } } Write-Verbose "Access token store exists at $AccessTokenStorePath" try { Write-Verbose "Attempting to read access token from $AccessTokenFilePath" $ExistingAccessToken = Get-Content -Path $AccessTokenFilePath -ErrorAction SilentlyContinue | ConvertFrom-Json -ErrorAction Stop } catch { Write-Warning "Couldn't convert existing access token from JSON" break } if ($ExistingAccessToken) { $Expires = $ExistingAccessToken.expires | Get-Date $CurrentTime = Get-Date if ($CurrentTime -le $Expires.AddSeconds(-10)) { return $ExistingAccessToken } } try { $SpotifyCredentials = Get-SpotifyCredential -Name $Name -ErrorAction Stop } catch { Write-Warning "Couldn't find spotify credentials with name $Name" break } if ($SpotifyCredentials.ClientId -and $SpotifyCredentials.ClientSecret) { <# The request is sent to the /api/token endpoint of the Accounts service: POST https://accounts.spotify.com/api/token #> $Uri = "https://accounts.spotify.com/api/token" $Method = "Post" <# The body of this POST request must contain the following parameters encoded in application/x-www-form-urlencoded as defined in the OAuth 2.0 specification #> $Body = @{ "grant_type" = "client_credentials" } } else { $SpotifyCredentials = New-SpotifyCredential -Name $Name -ClientId (Read-Host -Prompt "ClientId") -ClientSecret (Read-Host "ClientSecret") } <# Base 64 encoded string that contains the client ID and client secret key. #> $CombinedCredentials = [System.Text.Encoding]::UTF8.GetBytes($SpotifyCredentials.ClientId + ":" + $SpotifyCredentials.ClientSecret) $Base64Credentials = [System.Convert]::ToBase64String($CombinedCredentials) $Auth = @{ "Authorization" = "Basic " + $Base64Credentials } <# Call api for auth token #> try { Write-Verbose "Attempting to send request to API to get access token." $Response = Invoke-WebRequest -Uri $Uri -Method $Method -Body $Body -Headers $Auth $CurrentTime = Get-Date } catch { Write-Warning "Failed sending request to API to get access token." break } if ($Response) { Write-Verbose "We got a response!" if ($Response.StatusCode -eq "200") { $Response = $Response.Content | ConvertFrom-Json try { $Expires = $CurrentTime.AddSeconds($Response."expires_in") $AccessTokenJSON = @{ access_token = $Response."access_token"; token_type = $Response."token_type"; expires = "$Expires"; scope = $Response."scope"; } $AccessTokenJSON | ConvertTo-Json -Depth 100 | Out-File -FilePath $AccessTokenFilePath Write-Verbose "Successfully saved access token to $AccessTokenFilePath" $AccessTokenObject = Get-Content $AccessTokenFilePath | ConvertFrom-Json -ErrorAction Stop return $AccessTokenObject } catch { Write-Warning "Failed saving access token to $AccessTokenFilePath" } } else { Write-Warning "We got a bad response." Write-Warning "$($Response.StatusCode)" Write-Warning "$($Response.StatusDescription)" break } } else { Write-Warning "No response!" break } } |