AuthAzureSAS Chilkat2 Perl Reference Documentation
Chilkat2::AuthAzureSAS
Current Version: 11.7.0
Markdown version of this page for AI tools (v 11.7.0) · all AI docs
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
use Chilkat2;
my $authAzureSAS = Chilkat2::AuthAzureSAS->new;
# or set properties (and RaiseError) at creation:
# my $authAzureSAS = Chilkat2::AuthAzureSAS->new(VerboseLogging => 1, RaiseError => 1);Creates the object. The optional pairs set writable properties (and RaiseError) in order, as if set one by one; an unknown or read-only name croaks. use Chilkat2; loads every class; the Chilkat2/AuthAzureSAS.pm file holds only this class's documentation (perldoc Chilkat2::AuthAzureSAS).
Perl frees the object when its last reference goes (undef $authAzureSAS, or the variable going out of scope); there is nothing to close. Objects returned by methods are independent and freed the same way. The class may be subclassed (use parent -norequire, 'Chilkat2::AuthAzureSAS';): an object is a blessed hash reference whose hash is free for the subclass's own fields.
When false (the default), a method that fails returns false (or undef), and the reason is in LastErrorText. When true, it dies with a Chilkat2::Error instead, as DBI does with its RaiseError. Objects returned by a method inherit the value of the object that returned them.
Errors
A Chilkat2::Error stringifies to the failed call's full LastErrorText, and has the methods text, class ('Chilkat2::AuthAzureSAS'), method (the method name) and object. Methods that look something up and find nothing return undef without dying (each such method says so), methods that answer a question (HasMember, IsUnlocked, ...) return a plain boolean, and property reads and writes never fail for Chilkat reasons.
Misuse always croaks, with your file and line, whatever RaiseError is: a wrong number of arguments, a reference or undef where a string or number is expected, an object of the wrong class, an out-of-range integer, a string containing a NUL character, a wide character in a byte string, or a write to a read-only property.
Strings are Perl character strings in both directions (length, regexes and :encoding layers see characters); binary data (BinData) is a byte string. Unlocking: call Chilkat2::Global->new->UnlockBundle('...') once at startup.
Properties
AccessKey
my $strVal = $authAzureSAS->AccessKey;
$authAzureSAS->AccessKey($strVal);
This is the signing key (access key) that must be kept private. It is a base64 string such as abdTvCZFFoWUyre6erlNN+IOb9qhXgDsyhrxmZvpmxqFDwpl9oD0X9Fy0hIQa6L5UohznRLmkCtUYySO4Y2eaw==
DebugLogFilePath
my $strVal = $authAzureSAS->DebugLogFilePath;
$authAzureSAS->DebugLogFilePath($strVal);
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.
LastErrorHtml
my $strVal = $authAzureSAS->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
my $strVal = $authAzureSAS->LastErrorText;
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
my $strVal = $authAzureSAS->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
my $boolVal = $authAzureSAS->LastMethodSuccess;
$authAzureSAS->LastMethodSuccess($boolVal);
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.
StringToSign
my $strVal = $authAzureSAS->StringToSign;
$authAzureSAS->StringToSign($strVal);
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
my $boolVal = $authAzureSAS->VerboseLogging;
$authAzureSAS->VerboseLogging($boolVal);
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
my $strVal = $authAzureSAS->Version;
Methods
Clear
Clears all params set by the methods SetNonTokenParam and SetTokenParam.
Returns the object, so calls can be chained.
topGenerateToken
my $str = $authAzureSAS->GenerateToken();
Generates and returns the SAS token based on the defined StringToSign and params.
Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.
SetNonTokenParam
# $value is a string
# $success is true or false
my $success = $authAzureSAS->SetNonTokenParam($name, $value);
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 true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.
SetTokenParam
# $authParamName is a string
# $value is a string
# $success is true or false
my $success = $authAzureSAS->SetTokenParam($name, $authParamName, $value);
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 true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.