lib/utils.ps1
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function New-CosmosDbContext { [CmdletBinding(DefaultParameterSetName = 'Context')] [OutputType([System.Management.Automation.PSCustomObject])] [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSAvoidUsingConvertToSecureStringWithPlainText', '', Scope = 'Function')] param ( [Parameter(Mandatory = $true, ParameterSetName = 'Context')] [Parameter(Mandatory = $true, ParameterSetName = 'Azure')] [ValidateNotNullOrEmpty()] [System.String] $Account, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $Database, [Parameter(Mandatory = $true, ParameterSetName = 'Context')] [ValidateNotNullOrEmpty()] [System.Security.SecureString] $Key, [Parameter(ParameterSetName = 'Context')] [ValidateSet('master', 'resource')] [System.String] $KeyType = 'master', [Parameter(Mandatory = $true, ParameterSetName = 'Azure')] [ValidateNotNullOrEmpty()] [System.String] $ResourceGroup, [Parameter(ParameterSetName = 'Azure')] [ValidateSet('PrimaryMasterKey', 'SecondaryMasterKey', 'PrimaryReadonlyMasterKey', 'SecondaryReadonlyMasterKey')] [System.String] $MasterKeyType = 'PrimaryMasterKey', [Parameter(ParameterSetName = 'Emulator')] [Switch] $Emulator, [Parameter(ParameterSetName = 'Emulator')] [System.Int16] $Port = 8081 ) switch ($PSCmdlet.ParameterSetName) { 'Emulator' { $Account = 'localhost' # This is a publically known fixed master key (see https://docs.microsoft.com/en-us/azure/cosmos-db/local-emulator#authenticating-requests) $Key = ConvertTo-SecureString ` -String 'C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==' ` -AsPlainText ` -Force $BaseUri = [uri]::new('https://localhost:{0}' -f $Port) } 'Azure' { try { $null = Get-AzureRmContext -ErrorAction SilentlyContinue } catch { $null = Add-AzureRmAccount } $resource = Invoke-AzureRmResourceAction ` -ResourceGroupName $ResourceGroup ` -Name $Account ` -ResourceType "Microsoft.DocumentDb/databaseAccounts" ` -ApiVersion "2015-04-08" ` -Action listKeys ` -Force ` -ErrorAction Stop if ($resource) { $Key = ConvertTo-SecureString ` -String ($resource.$MasterKeyType) ` -AsPlainText ` -Force } else { return } $BaseUri = (Get-CosmosDbUri -Account $Account) } 'Context' { $BaseUri = (Get-CosmosDbUri -Account $Account) } } $context = New-Object -TypeName 'CosmosDB.Context' -Property @{ Account = $Account Database = $Database Key = $Key KeyType = $KeyType BaseUri = $BaseUri } return $context } function Get-CosmosDbUri { [CmdletBinding()] [OutputType([uri])] param ( [Parameter(Mandatory = $true)] [System.String] $Account, [Parameter()] [System.String] $BaseUri = 'documents.azure.com' ) return [uri]::new(('https://{0}.{1}' -f $Account, $BaseUri)) } function ConvertTo-CosmosDbTokenDateString { [CmdletBinding()] [OutputType([System.String])] param ( [Parameter(Mandatory = $true)] [System.DateTime] $Date ) return $Date.ToUniversalTime().ToString("r", [System.Globalization.CultureInfo]::InvariantCulture) } function New-CosmosDbAuthorizationToken { [CmdletBinding()] [OutputType([System.String])] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.Security.SecureString] $Key, [Parameter()] [ValidateSet('master', 'resource')] [System.String] $KeyType = 'master', [Parameter()] [ValidateSet('', 'Delete', 'Get', 'Head', 'Merge', 'Options', 'Patch', 'Post', 'Put', 'Trace')] [System.String] $Method = '', [Parameter()] [System.String] $ResourceType = '', [Parameter()] [System.String] $ResourceId = '', [Parameter(Mandatory = $true)] [System.DateTime] $Date, [Parameter()] [ValidateSet('1.0')] [System.String] $TokenVersion = '1.0' ) $BSTR = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($Key) $decryptedKey = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($BSTR) $base64Key = [System.Convert]::FromBase64String($decryptedKey) $hmacSha256 = New-Object -TypeName System.Security.Cryptography.HMACSHA256 -ArgumentList (, $base64Key) $dateString = ConvertTo-CosmosDbTokenDateString -Date $Date $payLoad = @( $Method.ToLowerInvariant() + "`n" + ` $ResourceType.ToLowerInvariant() + "`n" + ` $ResourceId + "`n" + ` $dateString.ToLowerInvariant() + "`n" + ` "" + "`n" ) $body = [System.Text.Encoding]::UTF8.GetBytes($payLoad) $hashPayLoad = $hmacSha256.ComputeHash($body) $signature = [Convert]::ToBase64String($hashPayLoad) Add-Type -AssemblyName 'System.Web' $token = [System.Web.HttpUtility]::UrlEncode(('type={0}&ver={1}&sig={2}' -f $KeyType, $TokenVersion, $signature)) return $token } function Invoke-CosmosDbRequest { [CmdletBinding(DefaultParameterSetName = 'Context')] [OutputType([System.String])] param ( [Alias("Connection")] [Parameter(Mandatory = $true, ParameterSetName = 'Context')] [ValidateNotNullOrEmpty()] [CosmosDB.Context] $Context, [Parameter(Mandatory = $true, ParameterSetName = 'Account')] [ValidateNotNullOrEmpty()] [System.String] $Account, [Parameter()] [System.String] $Database, [Parameter()] [ValidateNotNullOrEmpty()] [System.Security.SecureString] $Key, [Parameter()] [ValidateSet('master', 'resource')] [System.String] $KeyType = 'master', [Parameter()] [ValidateSet('Delete', 'Get', 'Head', 'Merge', 'Options', 'Patch', 'Post', 'Put', 'Trace')] [System.String] $Method = 'Get', [Parameter(Mandatory = $True)] [ValidateSet('attachments', 'colls', 'dbs', 'docs', 'users', 'permissions', 'triggers', 'sprocs', 'udfs', 'offers')] [System.String] $ResourceType, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $ResourcePath, [Parameter()] [System.String] $Body = '', [Parameter()] [ValidateSet('2014-08-21', '2015-04-08', '2015-06-03', '2015-08-06', '2015-12-16', '2016-07-11', '2017-01-19', '2017-02-22')] [System.String] $ApiVersion = '2017-02-22', [Parameter()] [Hashtable] $Headers = @{}, [Parameter()] [Switch] $UseWebRequest, [Parameter()] [System.String] $ContentType = 'application/json' ) if ($PSCmdlet.ParameterSetName -eq 'Account') { $Context = New-CosmosDbContext -Account $Account -Database $Database -Key $Key -KeyType $KeyType } if (-not ($PSBoundParameters.ContainsKey('Database'))) { $Database = $Context.Database } if (-not ($PSBoundParameters.ContainsKey('Key'))) { $Key = $Context.Key } if (-not ($PSBoundParameters.ContainsKey('KeyType'))) { $KeyType = $Context.KeyType } $baseUri = $Context.BaseUri.ToString() $date = Get-Date $dateString = ConvertTo-CosmosDbTokenDateString -Date $date # Generate the resource link value that will be used in the URI and to generate the resource id switch ($resourceType) { 'dbs' { # Request for a database object (not containined in a database) if ([String]::IsNullOrEmpty($ResourcePath)) { $ResourceLink = 'dbs' } else { $resourceLink = $ResourcePath $resourceId = $resourceLink } } 'offers' { # Request for an offer object (not contained in a database) if ([String]::IsNullOrEmpty($ResourcePath)) { $ResourceLink = 'offers' } else { $resourceLink = $ResourcePath $resourceId = ($ResourceLink -split '/')[1] } } default { # Request for an object that is within a database $resourceLink = ('dbs/{0}' -f $Database) if ($PSBoundParameters.ContainsKey('ResourcePath')) { $resourceLink = ('{0}/{1}' -f $resourceLink, $ResourcePath) } else { $resourceLink = ('{0}/{1}' -f $resourceLink, $ResourceType) } # Generate the resource Id from the resource link value $resourceElements = [System.Collections.ArrayList] ($resourceLink -split '/') if (($resourceElements.Count % 2) -eq 0) { $resourceId = $resourceLink } else { $resourceElements.RemoveAt($resourceElements.Count - 1) $resourceId = $resourceElements -Join '/' } } } # Generate the URI from the base connection URI and the resource link $uri = [uri]::New(('{0}{1}' -f $baseUri, $resourceLink)) $token = New-CosmosDbAuthorizationToken ` -Key $Key ` -KeyType $KeyType ` -Method $Method ` -ResourceType $ResourceType ` -ResourceId $resourceId ` -Date $date $Headers += @{ 'authorization' = $token 'x-ms-date' = $dateString 'x-ms-version' = $ApiVersion } $invokeRestMethodParameters = @{ Uri = $uri Headers = $Headers Method = $method ContentType = $ContentType } if ($Method -in ('Put', 'Post', 'Patch')) { if ($Method -eq 'Patch') { $invokeRestMethodParameters['contentType'] = 'application/json-patch+json' } $invokeRestMethodParameters += @{ Body = $Body } } if ($UseWebRequest) { $restResult = Invoke-WebRequest -UseBasicParsing @invokeRestMethodParameters } else { $restResult = Invoke-RestMethod @invokeRestMethodParameters } return $restResult } function New-CosmosDbInvalidArgumentException { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $Message, [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $ArgumentName ) $argumentException = New-Object -TypeName 'ArgumentException' -ArgumentList @( $Message, $ArgumentName ) $newObjectParams = @{ TypeName = 'System.Management.Automation.ErrorRecord' ArgumentList = @( $argumentException, $ArgumentName, 'InvalidArgument', $null ) } $errorRecord = New-Object @newObjectParams throw $errorRecord } function New-CosmosDbInvalidOperationException { [CmdletBinding()] param ( [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $Message, [Parameter()] [ValidateNotNull()] [System.Management.Automation.ErrorRecord] $ErrorRecord ) if ($null -eq $Message) { $invalidOperationException = New-Object -TypeName 'InvalidOperationException' } elseif ($null -eq $ErrorRecord) { $invalidOperationException = New-Object -TypeName 'InvalidOperationException' -ArgumentList @( $Message ) } else { $invalidOperationException = New-Object -TypeName 'InvalidOperationException' -ArgumentList @( $Message, $ErrorRecord.Exception ) } $newObjectParams = @{ TypeName = 'System.Management.Automation.ErrorRecord' ArgumentList = @( $invalidOperationException.ToString(), 'MachineStateIncorrect', 'InvalidOperation', $null ) } $errorRecordToThrow = New-Object @newObjectParams throw $errorRecordToThrow } |