scripts/collector/sqlserver/createUserWithWindowsAuth.ps1

# Copyright 2023 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
<#
.SYNOPSIS
    .
.DESCRIPTION
    Creates a user within the SQL Server Database using "Windows Authentication" with the necessary permissions
    needed to execute subsequent scripts to collect data from SQL Server and Perfmon to be uploaded to Google Database Migration Assistant for review.

    If user and password are supplied, that will be used to execute the script.  Otherwise default credentials hardcoded in the script will be used
.PARAMETER serverName
    Connection string usually in the form of [server name / ip address]\[instance name] (required)
.PARAMETER port
    Connection port (optional)
.PARAMETER collectionUserName
    Collection username (optional)
.PARAMETER collectionUserPass
    Collection username password (optional)
.EXAMPLE
    To use a specific username / password combination:
        C:\createuserwithwindowsauth.ps1 -serverName [server name / ip address]\[instance name] -collectionUserName [collection username] -collectionUserPass [collection username password]

    or

    To use default credentials:
        C:\createuserwithwindowsauth.ps1 -serverName [server name / ip address]\[instance name]
.NOTES
    https://googlecloudplatform.github.io/database-assessment/
#>
Param(
    [Parameter()][string]$serverName,
    [Parameter()][string]$port = "default",
    [Parameter()][string]$collectionUserName,
    [Parameter()][string]$collectionUserPass
)

Import-Module $PSScriptRoot\dmaCollectorCommonFunctions.psm1

if ([string]::IsNullorEmpty($collectionUserPass)) {
    Write-Output ""
    Write-Output "Collection Username password parameter is not provided"
    $collectionPassPrompt = Read-Host 'Please enter your Collection User password' -AsSecureString
    $collectionUserPass = [Runtime.InteropServices.Marshal]::PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToBSTR($collectionPassPrompt))
    Write-Output ""
}

if ([string]::IsNullorEmpty($serverName)) {
    Write-Output "Server parameter $serverName is empty.  Ensure that the parameter is provided"
    Exit 1
}

if ([string]::IsNullorEmpty($collectionUserName)) {
    Write-Output "Collection Username parameter $collectionUserName is empty.  Ensure that the parameter is provided"
    Exit 1
}

$validSQLInstanceVersionCheckArray = @(sqlcmd -S $serverName -i sql\checkValidInstanceVersion.sql -d master -C -l 30 -W -m 1 -u -h-1 -w 32768)
$splitValidInstanceVerisionCheckObj = $validSQLInstanceVersionCheckArray[0].Split('')
$validSQLInstanceVersionCheckValues = $splitValidInstanceVerisionCheckObj | ForEach-Object { if ($_.Trim() -ne '') { $_ } }

$isCloudOrLinuxHost = $validSQLInstanceVersionCheckValues[1]

if ($isCloudOrLinuxHost -eq "AZURE") {
    Write-Output "Creating user with Windows Authenticated Admin User not supported.  Please use script createUserForAssessmentWithSQLAuth.bat"
    Exit 1
}

if (([string]::IsNullorEmpty($port)) -or ($port -eq "default")) {
    Write-Output "Creating Collection User in $serverName"
    sqlcmd -S $serverName -i sql\createCollectionUser.sql -d master -C -l 30 -m 1 -v collectionUser=$collectionUserName collectionPass=$collectionUserPass
}
else {
    $serverName = "$serverName,$port"
    Write-Output "Creating Collection User in $serverName, using PORT $port"
    sqlcmd -S $serverName -i sql\createCollectionUser.sql -d master -C -l 30 -m 1 -v collectionUser=$collectionUserName collectionPass=$collectionUserPass
}