AuthAzureSAS SQL Server Reference Documentation
AuthAzureSAS
Current Version: 11.6.0
Chilkat.AuthAzureSAS
Generate a signed query-string token that authorizes limited access to an
Azure Storage resource.
Provide the exact Azure SAS string-to-sign required for the storage
service and resource being accessed.
Use the Azure Storage account access key to compute the signature placed
in the generated SAS token.
Add signed SAS parameters such as permissions, expiry, resource type, API
version, protocol, or IP restrictions.
Add query parameters that should accompany the request but should not be
included as part of the SAS token itself.
Use the generated SAS query string with Azure Storage requests built
using
For an extended overview, see
AuthAzureSAS Class Overview.
Create Azure Shared Access Signature tokens for signed Azure Storage requests.
Chilkat.AuthAzureSAS creates Azure Shared Access Signature
authentication tokens. It defines the SAS string-to-sign, supplies the Azure
Storage account access key used to compute the signature, and controls which
parameters are included in the generated SAS token query string. The
resulting token can be used with Chilkat.Rest,
Chilkat.Http, or other request-building code that needs
time-limited, permission-scoped access to Azure Storage resources.
SAS token generation
String-to-sign control
Account key signing
Token parameters
Non-token parameters
REST integration
Chilkat.Rest or other Chilkat HTTP workflows.
AuthAzureSAS object, set the Azure Storage
AccessKey, provide the required StringToSign, add
SAS token parameters with SetTokenParam, add any extra query
parameters with SetNonTokenParam, then call
GenerateToken. Use AuthAzureSAS when you need a SAS
query token; use Chilkat.AuthAzureStorage when you need Shared
Key authorization headers instead.
Object Creation
DECLARE @hr int
DECLARE @authAzureSAS int
EXEC @hr = sp_OACreate 'Chilkat.AuthAzureSAS', @authAzureSAS OUT
IF @hr <> 0
BEGIN
PRINT 'Failed to create ActiveX component'
RETURN
END
-- ... use @authAzureSAS ...
EXEC @hr = sp_OADestroy @authAzureSAST-SQL uses the Chilkat ActiveX through the OLE Automation stored procedures. They must be enabled once on the server (EXEC sp_configure 'Ole Automation Procedures', 1; RECONFIGURE;), and the Chilkat ActiveX registered must match the bitness of the SQL Server instance (64-bit for a 64-bit SQL Server). To bind to a specific major version of Chilkat, append the major version number to the ProgID, such as sp_OACreate 'Chilkat.AuthAzureSAS.11' for Chilkat v11.*.*.
sp_OACreate returns an object token (an int) that is passed as the first argument of every sp_OAMethod, sp_OAGetProperty and sp_OASetProperty call, and released with sp_OADestroy. Objects returned by methods (such as an HttpResponse or JsonObject) are also tokens received through an int OUT parameter; they must likewise be destroyed, and the OUT parameter is NULL when the method fails to return an object. Objects passed as arguments are passed by their token. When an OLE Automation procedure itself fails (non-zero @hr), sp_OAGetErrorInfo describes the error.
Data types: strings are nvarchar(4000); integers, booleans (1 or 0) and object tokens are int; dates are datetime. In the signatures on this page, @success, @iResult, @sResult and the like are the OUT variables receiving a method's return value, @iValue / @sValue receive or supply a property value, and the remaining @ variables are the method's arguments in order.
A string returned through an OUT parameter is limited to 4000 characters. For longer values, retrieve the result as a result set into a table variable instead of an OUT parameter, for example DECLARE @tmp TABLE (outputLine ntext) followed by INSERT INTO @tmp EXEC sp_OAGetProperty @authAzureSAS, 'LastErrorText'. See string length limitations for strings returned by sp_OAMethod calls.
Methods that pass or return raw byte arrays are not shown on this page, because varbinary(max) values cannot be exchanged through sp_OAMethod (see varbinary(max) limitation). Use the BinData-based alternatives (methods ending in Bd) or the base64 / hex string-encoded variants instead. Binary properties (such as LastBinaryResult) can be retrieved as a result set into a table variable, as shown in their signatures. Asynchronous (*Async) methods and event callbacks are not available from SQL Server.
Properties
AccessKey
EXEC sp_OASetProperty @authAzureSAS, 'AccessKey', @sValue
This is the signing key (access key) that must be kept private. It is a base64 string such as abdTvCZFFoWUyre6erlNN+IOb9qhXgDsyhrxmZvpmxqFDwpl9oD0X9Fy0hIQa6L5UohznRLmkCtUYySO4Y2eaw==
DebugLogFilePath
EXEC sp_OASetProperty @authAzureSAS, 'DebugLogFilePath', @sValue
If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.
Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.
Possible causes of hangs include:
- A timeout property set to 0, indicating an infinite timeout.
- A hang occurring within an event callback in the application code.
- An internal bug in the Chilkat code causing the hang.
LastBinaryResult
This property is mainly used in SQL Server stored procedures to retrieve binary data from the last method call that returned binary data. It is only accessible if Chilkat.Global.KeepBinaryResult is set to 1. This feature allows for the retrieval of large varbinary results in an SQL Server environment, which has restrictions on returning large data via method calls, though temp tables can handle binary properties.
LastErrorHtml
Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
topLastErrorText
Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
LastErrorXml
Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
topLastMethodSuccess
EXEC sp_OASetProperty @authAzureSAS, 'LastMethodSuccess', @iValue
Indicates the success or failure of the most recent method call: 1 means success, 0 means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages. Note: This property does not apply to methods that return integer values or to boolean-returning methods where the boolean does not indicate success or failure.
LastStringResult
In SQL Server stored procedures, this property holds the string return value of the most recent method call that returns a string. It is accessible only when Chilkat.Global.KeepStringResult is set to TRUE. SQL Server has limitations on string lengths returned from methods and properties, but temp tables can be used to access large strings.
LastStringResultLen
The length, in characters, of the string contained in the LastStringResult property.
topStringToSign
EXEC sp_OASetProperty @authAzureSAS, 'StringToSign', @sValue
Defines the format of the string to sign.
The format is specified as a comma-separated list of names. For example:
signedpermissions,signedstart,signedexpiry,canonicalizedresource,signedidentifier,signedIP,signedProtocol,signedversion,rscc,rscd,rsce,rscl,rsctThis will result in an actual string-to-sign that is composed of the values for each name separated by newline (LF) chars. For example:
signedpermissions +\n+ signedstart +\n+ signedexpiry +\n+ canonicalizedresource +\n+ signedidentifier +\n+ signedIP +\n+ signedProtocol +\n+ signedversion +\n+ rscc +\n+ rscd +\n+ rsce +\n+ rscl +\n+ rsct
VerboseLogging
EXEC sp_OASetProperty @authAzureSAS, 'VerboseLogging', @iValue
If set to 1, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is 0. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.
Version
Methods
Clear
Clears all params set by the methods SetNonTokenParam and SetTokenParam.
topGenerateToken
Generates and returns the SAS token based on the defined StringToSign and params.
Returns NULL on failure
SetNonTokenParam
Adds a non-token parameter name/value. This is a value that is included in the string to sign, but is NOT included in the token query params.
Returns 1 for success, 0 for failure.
topSetTokenParam
Adds a token parameter name/value. This is a value that is included in the string to sign, and is also included in the token query params.
Returns 1 for success, 0 for failure.