AuthAws Perl Reference Documentation

CkAuthAws

Current Version: 10.1.2

Implements AWS Signature V4 for signing and authenticating AWS REST requests.

Object Creation

$obj = chilkat::CkAuthAws->new();

Properties

AccessKey
# $strVal is a string
# $ckStr is a CkString
$authAws->get_AccessKey($ckStr);
$strVal = $authAws->accessKey();
$authAws->put_AccessKey($strVal);
Introduced in version 9.5.0.58

The AWS access key.

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CanonicalizedResourceV2
# $strVal is a string
# $ckStr is a CkString
$authAws->get_CanonicalizedResourceV2($ckStr);
$strVal = $authAws->canonicalizedResourceV2();
$authAws->put_CanonicalizedResourceV2($strVal);
Introduced in version 9.5.0.58

If AWS Signature Version V2 is used, then this property must be set. The rules for setting the canonicalized resource for the V2 signature method is described here: Constructing the CanonicalizedResource Element.

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DebugLogFilePath
# $strVal is a string
# $ckStr is a CkString
$authAws->get_DebugLogFilePath($ckStr);
$strVal = $authAws->debugLogFilePath();
$authAws->put_DebugLogFilePath($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.

More Information and Examples
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LastErrorHtml
# $strVal is a string
# $ckStr is a CkString
$authAws->get_LastErrorHtml($ckStr);
$strVal = $authAws->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.

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LastErrorText
# $strVal is a string
# $ckStr is a CkString
$authAws->get_LastErrorText($ckStr);
$strVal = $authAws->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.

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LastErrorXml
# $strVal is a string
# $ckStr is a CkString
$authAws->get_LastErrorXml($ckStr);
$strVal = $authAws->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.

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LastMethodSuccess
# $boolVal is a boolean
$boolVal = $authAws->get_LastMethodSuccess();
$authAws->put_LastMethodSuccess($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.

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PrecomputedMd5
# $strVal is a string
# $ckStr is a CkString
$authAws->get_PrecomputedMd5($ckStr);
$strVal = $authAws->precomputedMd5();
$authAws->put_PrecomputedMd5($strVal);
Introduced in version 9.5.0.58

This property can optionally be set for AWS requests that have a non-empty request body. This should be the base64 encoding of the 16 bytes of the MD5 hash. The most common need for this is if doing an S3 upload from a stream. (If the pre-computed MD5 is not provided, then Chilkat is forced to stream the entire file into memory so that it can calculate the MD5 for authentication.)

Note: AWS Signature Version 2 uses the MD5, whereas Signature Version 4 uses SHA256.

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PrecomputedSha256
# $strVal is a string
# $ckStr is a CkString
$authAws->get_PrecomputedSha256($ckStr);
$strVal = $authAws->precomputedSha256();
$authAws->put_PrecomputedSha256($strVal);
Introduced in version 9.5.0.58

This property can optionally be set for AWS requests that have a non-empty request body. This should be the lowercase hex encoding of the 32-bytes of the SHA256 hash. The most common need for this is if doing an S3 upload from a stream. (If the pre-computed SHA-256 is not provided, then Chilkat is forced to stream the entire file into memory so that it can calculate the SHA-256 for authentication.)

Note: AWS Signature Version 4 uses the SHA256 hash. (AWS Signature Version 2 uses MD5)

More Information and Examples
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Region
# $strVal is a string
# $ckStr is a CkString
$authAws->get_Region($ckStr);
$strVal = $authAws->region();
$authAws->put_Region($strVal);
Introduced in version 9.5.0.58

The AWS region, such as "us-east-1", "us-west-2", "eu-west-1", "eu-central-1", etc. The default is "us-east-1". It is only used when the SignatureVersion property is set to 4. This property is unused when the SignatureVersion property is set to 2.

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SecretKey
# $strVal is a string
# $ckStr is a CkString
$authAws->get_SecretKey($ckStr);
$strVal = $authAws->secretKey();
$authAws->put_SecretKey($strVal);
Introduced in version 9.5.0.58

The AWS secret key.

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ServiceName
# $strVal is a string
# $ckStr is a CkString
$authAws->get_ServiceName($ckStr);
$strVal = $authAws->serviceName();
$authAws->put_ServiceName($strVal);
Introduced in version 9.5.0.58

The AWS service namespace, such as "s3", "ses", etc. See http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html#genref-aws-service-namespaces

This property is unused when the SignatureVersion property is set to 2.

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SignatureVersion
# $intVal is an integer
$intVal = $authAws->get_SignatureVersion();
$authAws->put_SignatureVersion($intVal);
Introduced in version 9.5.0.58

The AWS Signature Version to be used in authentication. The default value is 4. This can optionally be set to the value 2 to use the older V2 signature version.

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Utf8
# $boolVal is a boolean
$boolVal = $authAws->get_Utf8();
$authAws->put_Utf8($boolVal);

When set to 1, all "const char *" arguments are interpreted as utf-8 strings. If set to 0 (the default), then "const char *" arguments are interpreted as ANSI strings. Also, when set to 1, and Chilkat method returning a "const char *" is returning the utf-8 representation. If set to 0, all "const char *" return values are ANSI strings.

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VerboseLogging
# $boolVal is a boolean
$boolVal = $authAws->get_VerboseLogging();
$authAws->put_VerboseLogging($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.

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Version
# $strVal is a string
# $ckStr is a CkString
$authAws->get_Version($ckStr);
$strVal = $authAws->version();

Version of the component/library, such as "10.1.0"

More Information and Examples
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Methods

GenPresignedUrl
# $httpVerb is a string
# $useHttps is a boolean
# $domain is a string
# $path is a string
# $numSecondsValid is an integer
# $awsService is a string
# $outStr is a CkString (output)
$status = $authAws->GenPresignedUrl($httpVerb, $useHttps, $domain, $path, $numSecondsValid, $awsService, $outStr);
$retStr = $authAws->genPresignedUrl($httpVerb, $useHttps, $domain, $path, $numSecondsValid, $awsService);
Introduced in version 9.5.0.85

Generates a temporary pre-signed URL for an Amazon AWS service using AWS Signature V4. Requires that the SecretKey, AccessKey, and Region properties be set to valid values prior to calling this method.

The URL that is generated has this format:

https://<domain>/<path>
?X-Amz-Algorithm=AWS4-HMAC-SHA256
&X-Amz-Credential=<AccessKey>/<currentDate>/<Region>/<awsService>/aws4_request
&X-Amz-Date=<currentDateTime>
&X-Amz-Expires=<numSecondsValid>
&X-Amz-SignedHeaders=host
&X-Amz-Signature=<signature-value>  

The httpVerb is the HTTP verb such as "GET", "PUT", "POST", "DELETE", etc. The awsService is a string naming the AWS service, such as "s3", "execute-api", etc. If useHttps is 1, then the returned URL begins with "https://", otherwise it begins with "http://".

Returns 1 for success, 0 for failure.

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