plugins/SalesforceSC/Private/invoke/Invoke-sfsc.ps1




function Invoke-SFSC {

    [CmdletBinding()]
    param (
         [Parameter(Mandatory=$true)][String]$Object                                # The cleverreach object like groups or mailings (first part after the main url)
        ,[Parameter(Mandatory=$false)][String]$Service = "data"
        ,[Parameter(Mandatory=$false)][String]$ContentType = "application/json"
        ,[Parameter(Mandatory=$false)][String]$Path = ""                            # The path in the url after the object
        ,[Parameter(Mandatory=$false)][PSCustomObject]$Query = [PSCustomObject]@{}  # Query parameters for the url
        #,[Parameter(Mandatory=$false)][Switch]$Paging = $false # Automatic paging through the result, only needed for a few calls
        #,[Parameter(Mandatory=$false)][Int]$Pagesize = 0 # Pagesize, if not defined in settings. For reports the max is 100.
        ,[Parameter(Mandatory=$false)][ValidateScript({
             If ($_ -is [PSCustomObject]) {
                 [PSCustomObject]$_
              # } elseif ($_ -is [System.Collections.Specialized.OrderedDictionary]) {
              # [System.Collections.Specialized.OrderedDictionary]$_
              # }
        # } ElseIf ($_ -is [System.Collections.ArrayList] -or $_ -is [Array]) {
        # [System.Collections.ArrayList]$_
             }
         })]$Body = [PSCustomObject]@{}   # Body to upload, e.g. for POST and PUT requests, will automatically transformed into JSON
    )
    DynamicParam {
        # All parameters, except Uri and body (needed as an object)
        $p = Get-BaseParameters "Invoke-WebRequest"
        [void]$p.remove("Uri")
        [void]$p.remove("Body")
        [void]$p.remove("ContentType")
        $p
    }

    Begin {

        # check type of body, if present
        <#
        If ($Body -is [PSCustomObject]) {
            Write-Host "PSCustomObject"
        } ElseIf ($Body -is [System.Collections.ArrayList]) {
            Write-Host "ArrayList"
        } else {
            Throw 'Body datatype not valid'
        }
        #>


        # check url, if it ends with a slash
        If ( $Script:settings.base.endswith("/") -eq $true ) {
            $base = $Script:settings.base
        } else {
            $base = "$( $Script:settings.base )/"
        }

        # Build custom salesforce domain
        $base = "https://$( $Script:settings.login.mydomain ).$( $base )services/$( $Service )/v$( $script:settings.apiversion )/"

        # Reduce input parameters to only allowed ones
        $updatedParameters = Skip-UnallowedBaseParameters -Base "Invoke-WebRequest" -Parameters $PSBoundParameters

        # Output parameters in debug mode
        If ( $Script:debugMode -eq $true -or $PSBoundParameters["Verbose"].IsPresent -eq $true) {
            Write-Host "INPUT: $( Convertto-json -InputObject $PSBoundParameters -Depth 99 )"
        }

        # Prepare Authentication

        If ( $Script:settings.token.tokenUsage -eq "consume" ) {
            #$rawToken = Get-Content -Path $Script:settings.token.tokenFilePath -Encoding UTF8 -Raw
            $rawToken = ( Get-Content -Path $Script:settings.token.tokenFilePath -Encoding UTF8 -Raw ).replace("`n","").replace("`r","")
            If ( $Script:settings.token.encryptTokenFile -eq $true ) {
                $token = Convert-SecureToPlaintext -String $rawToken
            } else {
                $token = $rawToken
            }
        } elseif ( $Script:settings.token.tokenUsage -eq "generate" ) {
            $token = Convert-SecureToPlaintext -String $Script:settings.login.accesstoken
        } else {
            throw "No token available!"
            exit 0 # TODO check, if this token is needed or should be another exit code
        }

        # Build up header
        $header = [Hashtable]@{
            "Authorization" = "Bearer $( $token )"
            "Accept" = "application/json"
            "X-PrettyPrint" = 1
        }

        # Empty the token variables
        $token = ""
        $rawToken = ""

        # Add auth header or just set it

        If ( $updatedParameters.ContainsKey("Headers") -eq $true ) {
            $header.Keys | ForEach-Object {
                $key = $_
                $updatedParameters.Headers.Add( $key, $header.$key )
            }
        } else {
            $updatedParameters.add("Headers",$header)
        }


        # Add additional headers from the settings, e.g. for api gateways or proxies
        $Script:settings.additionalHeaders.PSObject.Properties | ForEach-Object {
            $updatedParameters.Headers.add($_.Name, $_.Value)
        }

        # Set content type, if not present yet
        If ( $updatedParameters.ContainsKey("ContentType") -eq $false) {
            $updatedParameters.add("ContentType",$ContentType)
        }

        # normalize the path, remove leading and trailing slashes
        If ( $Path -ne "") {
            If ( $Path.StartsWith("/") -eq $true ) {
                $Path = $Path.Substring(1)
            }
            If ( $Path.EndsWith("/") -eq $true ) {
                $Path = $Path -replace ".$"
            }
        }

        # set the pagesize
        <#
        If ( $Pagesize -gt 0 ) {
            $currentPagesize = $Pagesize
        } else {
            $currentPagesize = $Script:settings.pageSize
        }
        #>


        # set paging parameters
        <#
        If ( $Paging -eq $true ) {
 
            Switch ( $updatedParameters.Method ) {
 
                "GET"{
                    #Write-Host "get"
                    $Query | Add-Member -MemberType NoteProperty -Name "pagesize" -Value $currentPagesize #$Script:settings.pageSize
                    $Query | Add-Member -MemberType NoteProperty -Name "page" -Value 0
                }
 
                "POST" {
                    If ( $Body -is [PSCustomObject] ) {
                        $Body | Add-Member -MemberType NoteProperty -Name "pagesize" -Value $currentPagesize # $Script:settings.pageSize
                        $Body | Add-Member -MemberType NoteProperty -Name "page" -Value 0
                    # } elseif ( $Body -is [System.Collections.Specialized.OrderedDictionary] ) {
                    # $Body.add("pagesize", $Script:settings.pageSize)
                    # $Body.add("page", 0)
                    }
                }
 
            }
 
            # Add a collection instead of a single object for the return
            $res = [System.Collections.ArrayList]@()
 
        }
        #>


    }

    Process {

        $finished = $false
        $continueAfterTokenRefresh = $false
        Do {

            # Prepare query
            $nvCollection = [System.Web.HttpUtility]::ParseQueryString([String]::Empty)
            $Query.PSObject.Properties | ForEach-Object {
                $nvCollection.Add( $_.Name, $_.Value )
            }

            # Prepare URL
            $uriRequest = [System.UriBuilder]::new("$( $base )$( $object )/$( $Path )")
            $uriRequest.Query = $nvCollection.ToString()
            $updatedParameters.Uri = $uriRequest.Uri.OriginalString

            # Prepare Body
            If ( $updatedParameters.ContainsKey("Body") -eq $true ) {
                $bodyJson = ConvertTo-Json -InputObject $Body -Depth 99
                $updatedParameters.Body = $bodyJson
            }

            # Execute the request
            try {

                # Output parameters in debug mode
                If ( $Script:debugMode -eq $true -or $PSBoundParameters["Verbose"].IsPresent -eq $true) {
                    Write-Host "REST: $( Convertto-json -InputObject $updatedParameters -Depth 99 )"
                }

                If ( $Script:logAPIrequests -eq $true ) {
                    Write-Log -Message "$( $updatedParameters.Method.ToString().ToUpper() ) $( $updatedParameters.Uri )" -severity verbose
                }

                #Write-Host ( convertto-json $updatedParameters )
                $wrInput = [Hashtable]@{
                    "Params" = $updatedParameters
                    "RetryHttpErrorList" = $Script:settings.errorhandling.RepeatOnHttpErrors
                    "MaxTriesSpecific" = $Script:settings.errorhandling.MaximumRetriesOnHttpErrorList
                    "MaxTriesGeneric" = $Script:settings.errorhandling.MaximumRetriesGeneric
                    "MillisecondsDelay" = $Script:settings.errorhandling.HttpErrorDelay
                }
                $wr = @( Invoke-WebRequestWithErrorHandling @wrInput )
                #$wr = Invoke-WebRequest @updatedParameters -UseBasicParsing

            } catch {

                $e = $_

                Write-Log -Message $e.Exception.Message -Severity ERROR

                # parse the response code and body
                $errResponse = $e.Exception.Response
                $errBody = Import-ErrorForResponseBody -Err $e

                # Do this only once
                if ( $errResponse.StatusCode.value__ -eq 401 -and $continueAfterTokenRefresh -eq $false) {

                    Write-Log -Severity WARNING -Message "401 Unauthorized"
                    try {
                        $newToken = Save-NewToken
                        Write-Log -Severity WARNING -Message "Successful token refresh"
                        $wrInput.Params.Headers.Authorization = "Bearer $( $newToken )"
                        $continueAfterTokenRefresh = $true
                    } catch {
                        Write-Log -Severity ERROR -Message "Token refresh not successful"
                    }

                    If ( $continueAfterTokenRefresh -eq $true ) {
                        Continue
                    }

                }

                # $responseStream = $_.Exception.Response.GetResponseStream()
                # $responseReader = [System.IO.StreamReader]::new($responseStream)
                # $responseBody = $responseReader.ReadToEnd()
                # Write-Log -Message $responseBody -Severity ERROR

                throw $_.Exception

            }

            # Increase page and add results to the collection
            <#
            If ( $Paging -eq $true ) {
 
                # If the result equals the pagesize, try it one more time with the next page
                If ( $wr.count -eq $currentPagesize ) {
 
                    Switch ( $updatedParameters.Method ) {
 
                        "GET"{
                            $Query.page += 1
                        }
 
                        "POST" {
                            $Body.page += 1
                        }
                    }
 
                } else {
 
                    # If this is less than the page size -> done!
                    $finished = $true
 
                }
 
                # Add result to return collection
                [void]$res.AddRange($wr)
 
            } else {
                #>


                # If this is only one request without paging -> done!
                $finished = $true

            #}

            If ( $PSBoundParameters["Verbose"].IsPresent -eq $true ) {
                Write-log $wr.Headers."Sforce-Limit-Info" -severity verbose #api-usage=2/15000
            }

        } Until ( $finished -eq $true )


        If ( $wr.Content -eq $null ) {
            $ret = [Array]@()
        } else {
            # TODO check with utf8 in returned header
            If ( $wr.headers.'Content-Type' -like "application/json*" ) {
                $ret = convertfrom-json -InputObject $wr.content #-Depth 99
            } else {
                $ret = $wr.content
            }
        }

        $ret

    }

    End {

        <#
        If ( $Paging -eq $true ) {
            $res
        } else {
            $wr
        }
        #>


    }

 }