SQS Task

The SQS Component provides access to Amazon's Simple Queue Service (SQS).

Remarks

The SQS Task connects to Amazon's SQS service to download or upload messages in queues. SQS allows you to create globally accessible queues on Amazon's servers. These queues can be used by developers to transfer data between distributed application components, without losing messages or requiring each component to always be available. Please refer to Amazon SQS documentation for details.

To begin set AccessKey and SecretKey to the corresponding values for the AWS account. Queue specifies the existing queue to work with.

SQS Receive Task

The SQS Receive Task will download messages from the specified Queue. To delete messages after they are downloaded set DeleteMode to OnSuccess.

By default if messages are not deleted they may be returned in subsequent polling intervals if they are still present in the queue. To prevent duplicate messages from being downloaded even if they are still present in the SQS queue set DownloadCacheFile to a file on disk where information about downloaded message is stored. When DownloadCacheFile is specified the task will check if the message has previously been downloaded, and will skip it if so.

SQS Send Task

The SQS Send Task uploads messages to the specified Queue. The SQS Send Task is designed to be simple to use and requires only minimal configuration. Simply set Message to the SQS message content to be uploaded.

Receiver Property List

The following is the full list of the properties of the receiver task with short descriptions. Click on the links for further details.


AccessKey	The Access Key for the Amazon Web Services account.
Delete	Controls if the message is deleted from the queue after download.
DownloadCacheFile	The file location where downloaded message information is cached.
Firewall	A set of properties related to firewall access.
HTTPProxy	A set of properties related to proxy access.
LocalDirectory	The directory on the local machine to which messages are downloaded.
LogFile	The file to write logging information to at runtime.
LogMode	What information gets logged during component execution.
MaxMessages	The maximum number of messages retrieved from the queue.
MessageId	The ID(s) of the message to delete when the operation is set to DeleteMessage.
MessageList	String denoting the name of the variable which contains the last object listing entries.
Operation	The operation which will be executed by the SQS component.
Other	Defines a set of configuration settings to be used by the component.
Queue	The name of the queue to access.
QueueList	String denoting the name of the variable which contains the last queue listing entries.
QueuePrefix	QueuePrefix can be used to filter the queues listed.
RuntimeLicense	Specifies the component runtime license key.
SecretKey	The Secret Key for the Amazon Web Services account.
SSLAcceptServerCert	Instructs the component to unconditionally accept the server certificate that matches the supplied certificate.
SSLAcceptServerCertAcceptAny	Tells the component to accept any server certificate.
SSLCert	The certificate to use for client authentication during the SSL handshake.
Timeout	A timeout for the component.
UseFIFOQueue	Whether the component should use FIFO queues instead of standard queues.
VisibilityTimeout	The visibility duration for messages in the queue in seconds.

Sender Property List

The following is the full list of the properties of the sender task with short descriptions. Click on the links for further details.


AccessKey	The Access Key for the Amazon Web Services account.
Firewall	A set of properties related to firewall access.
HTTPProxy	A set of properties related to proxy access.
LocalFile	The path to a local file for upload.
LogFile	The file to write logging information to at runtime.
LogMode	What information gets logged during component execution.
Message	The message to add to the specified queue.
MessageGroupId	The ID that groups together messages in a FIFO queue.
Other	Defines a set of configuration settings to be used by the component.
Queue	The name of the queue to access.
RuntimeLicense	Specifies the component runtime license key.
SecretKey	The Secret Key for the Amazon Web Services account.
SSLAcceptServerCert	Instructs the component to unconditionally accept the server certificate that matches the supplied certificate.
SSLAcceptServerCertAcceptAny	Tells the component to accept any server certificate.
SSLCert	The certificate to use for client authentication during the SSL handshake.
Timeout	A timeout for the component.
UseFIFOQueue	Whether the component should use FIFO queues instead of standard queues.

Config Settings

The following is a list of config settings for the task with short descriptions. Click on the links for further details.


URL	If set, the default URL will be overridden by this value.
UseEC2RoleCredentials	If set to true, authenticate requests with credentials obtained from the IAM role attached to the EC2 instance.
ReuseSSLSession	Determines if the SSL session is reused.
SSLCipherStrength	The minimum cipher strength used for bulk encryption.
SSLEnabledCipherSuites	The cipher suite to be used in an SSL negotiation.
SSLEnabledProtocols	Used to enable/disable the supported security protocols.
SSLIncludeCertChain	Whether the entire certificate chain is included in the SSLServerAuthentication event.
SSLSecurityFlags	Flags that control certificate verification.
TLS12SignatureAlgorithms	Defines the allowed TLS 1.2 signature algorithms when UseInternalSecurityAPI is True.
TLS12SupportedGroups	The supported groups for ECC.
TLS13KeyShareGroups	The groups for which to pregenerate key shares.
TLS13SignatureAlgorithms	The allowed certificate signature algorithms.
TLS13SupportedGroups	The supported groups for (EC)DHE key exchange.
AbsoluteTimeout	Determines whether timeouts are inactivity timeouts or absolute timeouts.
LocalHost	The name of the local host or user-assigned IP interface through which connections are initiated or accepted.
TcpNoDelay	Whether or not to delay when sending packets.
UseInternalSecurityAPI	Tells the component whether or not to use the system security libraries or an internal implementation.

AccessKey Property (SQS Task)

The Access Key for the Amazon Web Services account.

Data Type

String

Default Value

Remarks

This property specifies the AWS Access Key for the account with permissions to the SQS Queue.

Delete Property (SQS Task)

Controls if the message is deleted from the queue after download.

Data Type

Boolean

Default Value

false

Remarks

If this property is set to True, each downloaded message is deleted from the server.

This property is not available in the Sender.

DownloadCacheFile Property (SQS Task)

The file location where downloaded message information is cached.

Data Type

String

Default Value

Remarks

This property specifies an optional file on disk which holds information about previously downloaded messages.

The DownloadCacheFileDuration configuration setting may be used to expire old entries from the cache file.

If this property is not set, no caching will be performed.

This property is not available in the Sender.

Firewall Property (SQS Task)

A set of properties related to firewall access.

Data Type

Firewall

Remarks

This is a Firewall type property which contains fields describing the firewall through which the task will attempt to connect.

HTTPProxy Property (SQS Task)

A set of properties related to proxy access.

Data Type

Proxy

Remarks

This is a Proxy type property which contains fields describing the proxy through which the task will attempt to connect.

LocalDirectory Property (SQS Task)

The directory on the local machine to which messages are downloaded.

Data Type

String

Default Value

Remarks

This property specifies a directory to which all downloaded messages are written. The filename is the message Id. For instance 7b56584e-6fe1-4707-b8d9-30a0317e71f5.

This property is not available in the Sender.

LocalFile Property (SQS Task)

The path to a local file for upload.

Data Type

String

Default Value

Remarks

The LocalFile property is the name of the file on the local system to be uploaded to the SQS server.

This property is not available in the Receiver.

LogFile Property (SQS Task)

The file to write logging information to at runtime.

Data Type

String

Default Value

Remarks

To write logging information to a file instead of using the task's logging API, set this property to a valid file on disk.

When set, any logging information is appended to the specified file and not written to the task's logging API.

LogMode Property (SQS Task)

What information gets logged during component execution.

Data Type

Enumeration

Possible Values

Verbose (0)
Info (1)
Warning (2)
Error (3)
Fatal (4)

Default Value

Remarks

This property controls what information the task logs. The possible values have the following affect on the task's behavior:


Verbose	The task will report all information regarding the transport.
Info	The task will report all major operations, as well as all warnings and errors.
Warning	The task will report any conditions that could result in unpredictable behavior as well as errors.
Error	The task will report all errors that prevent normal operations from completing.
Fatal	The task will report only serious errors that cause the task to completely stop functioning.

MaxMessages Property (SQS Task)

The maximum number of messages retrieved from the queue.

Data Type

Integer

Default Value

Remarks

This property specifies the maximum number of returned messages.

Allowed values are between 1 and 10. All other values are considered illegal by Amazon.

This property is not available in the Sender.

Message Property (SQS Task)

The message to add to the specified queue.

Data Type

String

Default Value

Remarks

This property specifies the message to add to the Queue selected by Queue. If unspecified the message data is read from LocalFile.

This property is not available in the Receiver.

MessageGroupId Property (SQS Task)

The ID that groups together messages in a FIFO queue.

Data Type

String

Default Value

Remarks

When uploading messages to a FIFO queue, only messages that share a MessageGroupId are guaranteed to be processed in-order. If all messages should be processed in-order, then this should be set to an arbitrary static integer.

This property is required when UseFIFOQueue is True and not applicable when UseFIFOQueue is False.

This property is not available in the Receiver.

MessageId Property (SQS Task)

The ID(s) of the message to delete when the operation is set to DeleteMessage.

Data Type

String

Default Value

"*"

Remarks

When Operation is set to Delete Messages, the task will delete the message with the ID specified by this property. Multiple message ID's can be specified in a comma-separated list.

If MessageId is set to "*" all messages returned by the server (up to MaxMessages count) are deleted.

This property is not available in the Sender.

MessageList Property (SQS Task)

String denoting the name of the variable which contains the last object listing entries.

Data Type

String

Default Value

"<none>"

Remarks

This property denotes a variable name which contains the collection of message listings returned from the server when the Operation property has been set to opListMessages. The collection is made up of entries for each message in the queue specified by the Queue property.

The variable is in the form of a datatable. The table's rows represent a message listing, and the columns represent a different property of the listing. The columns of the datatable are shown below:


(0)Id	The Id of the message being listed.
(1)Body	The content of the message.
(2) MD5	The MD5 hash of the message for guaranteeing authenticity.

This property is not available in the Sender.

Operation Property (SQS Task)

The operation which will be executed by the SQS component.

Data Type

Enumeration

Possible Values

Receive Messages (0)
List Messages (1)
List Queues (2)
Delete Messages (3)

Default Value

Remarks

This setting controls the behavior of the task. The following operations are supported:

Receive Messages (default)
List Messages
List Queues
Delete Messages

When set to Receive Messages the task will download messages to the directory specified by LocalDirectory.

When set to List Messages the task will download messages and store them in MessageList.

When set to List Queues the QueueList property defines a variable to which the queue information is written.

When set to Delete Messages the task will delete the message specified by MessageId (TBD). If MessageId is set to "*" all messages returned by the server (up to MaxMessages count) are deleted.

This property is not available in the Sender.

Other Property (SQS Task)

Defines a set of configuration settings to be used by the component.

Data Type

String

Default Value

Remarks

The task accepts one or more configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the task, access to these internal properties is provided through the Other property.

The Other property may be set to one or more configuration settings (name/value pairs). Set one setting per line. For example: configname1=value1 configname2=value2

Queue Property (SQS Task)

The name of the queue to access.

Data Type

String

Default Value

Remarks

This property specifies the SQS queue which will be used for all operations.

QueueList Property (SQS Task)

String denoting the name of the variable which contains the last queue listing entries.

Data Type

String

Default Value

"<none>"

Remarks

This property denotes a variable name which contains the collection of queue listings returned from the server when the Operation property has been set to opListQueues. The collection is made up of entries for each listing.

The variable is in the form of a datatable. The table's rows represent a queue listing, and the columns represent a different property of the listing. The columns of the datatable are shown below:


(0) QueueName	The name of the Queue being listed.
(1) QueueUrl	The URL for the Queue.

This property is not available in the Sender.

QueuePrefix Property (SQS Task)

QueuePrefix can be used to filter the queues listed.

Data Type

String

Default Value

Remarks

This property specifies a prefix for the queues to be listed. When specified only the queues whose names start with this prefix are listed when the List Queues operation is performed.

This property is not available in the Sender.

RuntimeLicense Property (SQS Task)

Specifies the component runtime license key.

Data Type

String

Default Value

Remarks

You can use the RuntimeLicense property to set the runtime key for the task license.

SecretKey Property (SQS Task)

The Secret Key for the Amazon Web Services account.

Data Type

String

Default Value

Remarks

This property specifies the AWS Secret Key for the account with permissions to the SQS Queue.

SSLAcceptServerCert Property (SQS Task)

Instructs the component to unconditionally accept the server certificate that matches the supplied certificate.

Data Type

Certificate

Remarks

If it finds any issues with the certificate presented by the server, the task will normally terminate the connection with an error. You may override this behavior by supplying a value for SSLAcceptServerCert. If the certificate supplied in SSLAcceptServerCert is the same as the certificate presented by the server, then the server certificate is accepted unconditionally, and the connection will continue normally.

This property is used to set a Public Key Certificate.

Ordinarily, the system will attempt to locate the public key in trusted certificate stores in the system registry. If a match is found, the certificate is trusted, and the process proceeds without error. If the certificate is not trusted, the task will report an error.

You may explicitly set a public key, either to accept a key that is not installed on the system, or to ensure that a specific key is presented. Public key certificates may be loaded from the machine registry or from file. If you click on the ellipses, a certificate selection dialog will open. To select a public key from the system registry, select the System Store tab or the User Store tab, and highlight the appropriate registry store. The list of available certificates will be shown below.

Alternatively, you may specify a public key on file. Select the PEM or Certificate File tabs to load a public key from file. You can use the browse button to examine the file system for the certificate that you wish to use. Public keys typically are stored in .CER, .DER, or .PEM files, but other formats may be used. You can click on the Open button to examine the contents of the certificate. Or, if you have a certificate stored in memory, you can write the contents of the certificate into the text box provided. Note that if you are loading a certificate from memory, the certificate must be Base-64 encoded, or the string representation of the certificate may become corrupted and uninterpretable.

Regardless of how you selected the certificate, once you hit the OK button, the task will attempt to verify that certificate selection. If successful, the subject of the certificate will be displayed in the property field. If the task was not able to verify the selection, a dialog box will appear instead detailing the verification error.

Note: You may also set SSLAcceptServerCertAcceptAny to True without opening the certificate selection dialog to force the task to unilaterally authenticate any server during the security handshake. It is strongly recommended that you use this only for testing purposes.

SSLAcceptServerCertAcceptAny Property (SQS Task)

Tells the component to accept any server certificate.

Data Type

Boolean

Default Value

false

Remarks

When set to true, the task will unilaterally authenticate any server during the security handshake. It is strongly recommended that you use this only for testing purposes.

SSLCert Property (SQS Task)

The certificate to use for client authentication during the SSL handshake.

Data Type

Certificate

Remarks

This property is used to assign a specific certificate for SSL client authentication.

This field is used to set a Private Key Certificate.

Private key certificates may be loaded from the registry, from files in PKCS#12 format, or from a PEM file format. If you click on the ellipses, a certificate selection dialog will open. To select a private key from the system registry, select the System Store tab or the User Store tab, and highlight the appropriate registry store. The list of certificates which have private keys will be shown below.

To select a private key certificate from a file in PKCS#12 format, select the PFX Store tab. The browse button can be used to examine the file system for PKCS#12 (.pfx or .p12) certificates. If you wish to examine the certificate, provide the password in the field provided and click on the Open button to examine the file store for certificates present. To load a certificate from PEM files, select the PEM tab. Like the PFX file selection, you can specify the password and click the Open button to examine the certificates in the PEM store, or you may paste any PEM data stored in memory.

Timeout Property (SQS Task)

A timeout for the component.

Data Type

Integer

Default Value

Remarks

If the Timeout property is set to 0, all operations will run uninterrupted until successful completion, or an error condition is encountered.

If Timeout is set to a positive value, the task will wait for the operation to complete before returning control.

If Timeout expires, and the operation is not yet complete, the task fails with an error.

Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when data is successfully sent or received.

Optionally, the behavior of the task may be changed to absolute timeouts, i.e. the task will wait for a maximum of Timeout seconds since the beginning of the operation, without extending the timeout period during communications.

This behavior is controlled by the AbsoluteTimeout configuration setting.

The default value for the Timeout property is 60 (seconds).

UseFIFOQueue Property (SQS Task)

Whether the component should use FIFO queues instead of standard queues.

Data Type

Boolean

Default Value

false

Remarks

Amazon SQS supports both standard and FIFO (First-In First-Out) queues. The order in which messages are sent and received is preserved. Messages are delivered exactly once and remain available until the receiver deletes it. FIFO queue names must end in ".fifo".

When set to True, the Queue property must end in ".fifo" and the VisibilityTimeout must not be zero. Setting VisibilityTimeout to zero when using FIFO queues prevents the task from being able to delete messages.

VisibilityTimeout Property (SQS Task)

The visibility duration for messages in the queue in seconds.

Data Type

Integer

Default Value

-1

Remarks

Visibility timeout is a mechanism defined in the SQS service which controls when existing messages in the queue become visible again after being processed. When using FIFO queues, this value also determines how long after download a message can be deleted from the queue. Because of this, a value of 0 is not allowed when UseFIFOQueue is True.

For instance if the visibility timeout is 100 seconds a message will be listed once, but will not be visible in subsequent list operations until the timeout has elapsed. This may be used to prevent duplicate processing, however in this case it is expected that the message will be deleted from the queue before the timeout expires.

A default visibility timeout is configured when a queue is created it can also be specified when a message is added or when they are listed.

The default value for VisibilityTimeout is -1, which indicates that the default timeout for the Queue should be used.

The maximum value is 43200 seconds (12 hours).

Note: To prevent duplicate downloads of messages regardless of this property value see DownloadCacheFile.

This property is not available in the Sender.

Certificate Type

The digital certificate being used.

Remarks

This type describes the current digital certificate. The certificate may be a public or private key. The fields are used to identify or select certificates.

Fields

Store
String

The name of the certificate store for the client certificate.

The StoreType field specifies the type of the certificate store specified by Store. If the store is password protected, specify the password in StorePassword.

Store is used in conjunction with the Subject field in order to specify client certificates. If Store has a value, and Subject is set, a search for a certificate is initiated. Please refer to the Subject field for details.

Designations of certificate stores are platform-dependent.

The following are designations of the most common User and Machine certificate stores in Windows:


MY	A certificate store holding personal certificates with their associated private keys.
CA	Certifying authority certificates.
ROOT	Root certificates.
SPC	Software publisher certificates.

In Java, the certificate store normally is a file containing certificates and optional private keys.

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e. PKCS12 certificate store).

If the provider is OpenSSL, the certificate store is a file containing a certificate and a private key. This property must be set to the name of the file.

StorePassword
String

If the certificate store is of a type that requires a password, this property is used to specify that password in order to open the certificate store.

StoreType
CertStoreTypes

The type of certificate store for this certificate.

The task supports both public and private keys in a variety of formats. When the cstAuto value is used the task will automatically determine the type. This field can take one of the following values:


0 (cstUser - default)	For Windows, this specifies that the certificate store is a certificate store owned by the current user. Note: this store type is not available in Java.
1 (cstMachine)	For Windows, this specifies that the certificate store is a machine store. Note: this store type is not available in Java.
2 (cstPFXFile)	The certificate store is the name of a PFX (PKCS12) file containing certificates.
3 (cstPFXBlob)	The certificate store is a string (binary or base64-encoded) representing a certificate store in PFX (PKCS12) format.
4 (cstJKSFile)	The certificate store is the name of a Java Key Store (JKS) file containing certificates. Note: this store type is only available in Java.
5 (cstJKSBlob)	The certificate store is a string (binary or base64-encoded) representing a certificate store in Java Key Store (JKS) format. Note: this store type is only available in Java.
6 (cstPEMKeyFile)	The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate.
7 (cstPEMKeyBlob)	The certificate store is a string (binary or base64-encoded) that contains a private key and an optional certificate.
8 (cstPublicKeyFile)	The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate.
9 (cstPublicKeyBlob)	The certificate store is a string (binary or base64-encoded) that contains a PEM- or DER-encoded public key certificate.
10 (cstSSHPublicKeyBlob)	The certificate store is a string (binary or base64-encoded) that contains an SSH-style public key.
11 (cstP7BFile)	The certificate store is the name of a PKCS7 file containing certificates.
12 (cstP7BBlob)	The certificate store is a string (binary) representing a certificate store in PKCS7 format.
13 (cstSSHPublicKeyFile)	The certificate store is the name of a file that contains an SSH-style public key.
14 (cstPPKFile)	The certificate store is the name of a file that contains a PPK (PuTTY Private Key).
15 (cstPPKBlob)	The certificate store is a string (binary) that contains a PPK (PuTTY Private Key).
16 (cstXMLFile)	The certificate store is the name of a file that contains a certificate in XML format.
17 (cstXMLBlob)	The certificate store is a string that contains a certificate in XML format.
18 (cstJWKFile)	The certificate store is the name of a file that contains a JWK (JSON Web Key).
19 (cstJWKBlob)	The certificate store is a string that contains a JWK (JSON Web Key).
21 (cstBCFKSFile)	The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store). Note: this store type is only available in Java and .NET.
22 (cstBCFKSBlob)	The certificate store is a string (binary or base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format. Note: this store type is only available in Java and .NET.
23 (cstPKCS11)	The certificate is present on a physical security key accessible via a PKCS11 interface. To use a security key the necessary data must first be collected using the CERTMGR task. The ListStoreCertificates method may be called after setting CertStoreType to `cstPKCS11`, CertStorePassword to the PIN, and CertStore to the full path of the PKCS11 dll. The certificate information returned in the CertList event's `CertEncoded` parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the Store and set StorePassword to the PIN. Code Example: SSH Authentication with Security Key `certmgr.CertStoreType = CertStoreTypes.cstPKCS11; certmgr.OnCertList += (s, e) => { secKeyBlob = e.CertEncoded; }; certmgr.CertStore = @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll"; certmgr.CertStorePassword = "123456"; //PIN certmgr.ListStoreCertificates(); sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, secKeyBlob, "123456", "*"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22);`
99 (cstAuto)	The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically.

Subject
String

The subject of the certificate used for client authentication.

When this property is set, a search is performed in the current certificate store certificate with matching subject.

If an exact match is not found, the store is searched for subjects containing the value of the property.

When setting the property to a partial subject, CN= should be omitted. For example, the following code would find the certificate with subject CN=Test Certificate, OU=People, C=US

Example (Searching with partial subject)

Control.CertSubject = "Test"

If a match is not found, the property is set to an empty string, and no certificate is selected.

The special value "*" picks a random certificate in the certificate store.

If a matching certificate is found, Subject is set to the full subject of the matching certificate.

Thumbprint
String (read-only)

The thumbprint of the certificate.

This field is used to specify the thumbprint of the certificate. When there are multiple certificates in the store that have the same subject, the thumbprint will be used to distinguish between them.

Firewall Type

The firewall the component will connect through.

Remarks

When connecting through a firewall, this type is used to specify different properties of the firewall such as the firewall Host and the FirewallType.

Fields

AutoDetect
Boolean

Tells the task whether or not to automatically detect and use firewall system settings, if available.

FirewallType
FirewallTypes

Determines the type of firewall to connect through. The applicable values are the following:


fwNone (0)	No firewall (default setting).
fwTunnel (1)	Connect through a tunneling proxy. Port is set to 80.
fwSOCKS4 (2)	Connect through a SOCKS4 Proxy. Port is set to 1080.
fwSOCKS5 (3)	Connect through a SOCKS5 Proxy. Port is set to 1080.

Host
String

Name or IP address of firewall (optional). If a Host is given, requested connections will be authenticated through the specified firewall when connecting.

If the Host field is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, the Host field is set to the corresponding address. If the search is not successful, an error is returned.

Password
String

A password if authentication is to be used when connecting through the firewall. If Host is specified, the User and Password fields are used to connect and authenticate to the given firewall. If the authentication fails, a trappable error is fired.

Port
Integer

The TCP port for the firewall Host. See the description of the Host field for details.

Note that the Port is set automatically when FirewallType is set to a valid value. See the description of the FirewallType field for details.

User
String

A user name if authentication is to be used connecting through a firewall. If the Host is specified, the User and Password fields are used to connect and authenticate to the given Firewall. If the authentication fails, a trappable error is fired.

Proxy Type

The proxy the component will connect to.

Remarks

When connecting through a proxy, this type is used to specify different properties of the proxy such as the Server and the AuthScheme.

Fields

AuthScheme
ProxyAuthSchemes

Use the AuthScheme field to tell the task which type of authorization to perform when connecting to the proxy. This is only used when the User and Password fields are set.

AuthScheme should be set to authNone (3) when no authentication is expected.

By default, AuthScheme is authBasic (0), and if the User and Password fields are set, the component will attempt basic authentication. If AuthScheme is set to authDigest (1), digest authentication will be attempted instead.

If AuthScheme is set to authProprietary (2), then the authorization token will not be generated by the task. Look at the configuration file for the task being used to find more information about manually setting this token.

If AuthScheme is set to authNtlm (4), NTLM authentication will be used. This option is only available in the SSL package.

For security reasons, setting this property will clear the values of User and Password.

AutoDetect
Boolean

Tells the task whether or not to automatically detect and use proxy system settings, if available.

Password
String

A password if authentication is to be used for the proxy.

If AuthScheme is set to Basic Authentication, the User and Password are Base64 encoded and the proxy authentication token will be generated in the form "Basic [encoded-user-password]".

If AuthScheme is set to Digest Authentication, the User and Password fields are used to respond to the Digest Authentication challenge from the server.

If AuthScheme is set to NTLM Authentication, the User and Password fields are used to authenticate through NTLM negotiation.

Port
Integer

The TCP port for the proxy Server (default 80). See the description of the Server field for details.

Server
String

If a proxy Server is given, then the HTTP request is sent to the proxy instead of the server otherwise specified.

If the Server field is set to a Domain Name, a DNS request is initiated and upon successful termination of the request, the Server field is set to the corresponding address. If the search is not successful, an error is returned.

SSL
ProxySSLTypes

Determines when to use SSL for the connection to the proxy. The applicable values are the following:


psAutomatic (0)	Default setting. The connection to the Server is SSL-enabled for 'https' URL-s, and non SSL-enabled for other URL-s.
psAlways (1)	The connection is always SSL-enabled.
psNever (2)	The connection is not SSL-enabled.
psTunnel (3)	The connection is through a tunneling (HTTP) proxy.

User
String

A user name, if authentication is to be used for the proxy.

If AuthScheme is set to Basic Authentication, the User and Password are Base64 encoded and the proxy authentication token will be generated in the form "Basic [encoded-user-password]".

If AuthScheme is set to Digest Authentication, the User and Password fields are used to respond to the Digest Authentication challenge from the server.

If AuthScheme is set to NTLM Authentication, the User and Password fields are used to authenticate through NTLM negotiation.

Config Settings (SQS Task)

The task accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the task, access to these internal properties is provided through the Other property.

SQS Config Settings

URL: If set, the default URL will be overridden by this value.

By default, the task uses the Amazon URL for the service. Setting this will override the default value. The URL must be a valid URL for an Amazon SQS server or the task will default to "htttp://sqs.us-east-1.amazonaws.com/".

UseEC2RoleCredentials: If set to true, authenticate requests with credentials obtained from the IAM role attached to the EC2 instance.

When the task is running within an Amazon EC2 instance, this setting can be set to true in order to automatically authenticate requests as the IAM role attached to the instance using temporary credentials obtained from the EC2 instance itself.

In order for the task to be able to auto-obtain authentication credentials, the EC2 instance must have an "instance profile" with an appropriate IAM role attached to it. Refer to the "Using an IAM Role to Grant Permissions to Applications Running on Amazon EC2 Instances" page in the Amazon IAM documentation for more information.

By default, this setting is false. When set to true the task will do the following before each request:

Make a request against the EC2 instance to get the name of the role attached to it.
Make a request against the EC2 instance to obtain temporary security credentials for IAM role returned in the previous call.
Parse the response, automatically populating the AccessKey and SecretKey properties.
Execute the original request using the temporary security credentials that were acquired.

When using this setting, set the AccessKey and SecretKey properties to dummy values (e.g., "DUMMY").

SSL Config Settings

ReuseSSLSession: Determines if the SSL session is reused.

If set to true, the task will reuse the context if and only if the following criteria are met:

The target host name is the same.
The system cache entry has not expired (default timeout is 10 hours).
The application process that calls the function is the same.
The logon session is the same.
The instance of the task is the same.

SSLCipherStrength: The minimum cipher strength used for bulk encryption.

This minimum cipher strength largely dependent on the security modules installed on the system. If the cipher strength specified is not supported, an error will be returned when connections are initiated.

Please note that this setting contains the minimum cipher strength requested from the security library.

Use this setting with caution. Requesting a lower cipher strength than necessary could potentially cause serious security vulnerabilities in your application.

SSLEnabledCipherSuites: The cipher suite to be used in an SSL negotiation.

The enabled cipher suites to be used in SSL negotiation.

By default, the enabled cipher suites will include all available ciphers ("*").

The special value "*" means that the task will pick all of the supported cipher suites. If SSLEnabledCipherSuites is set to any other value, only the specified cipher suites will be considered.

Multiple cipher suites are separated by semicolons.

Example values when UseInternalSecurityAPI is False (default): // The "Other" property could contain ONE of the following lines: SSLEnabledCipherSuites=* SSLEnabledCipherSuites=CALG_AES_256 SSLEnabledCipherSuites=CALG_AES_256;CALG_3DES Possible values when UseInternalSecurityAPI is False (default) include:

CALG_3DES
CALG_3DES_112
CALG_AES
CALG_AES_128
CALG_AES_192
CALG_AES_256
CALG_AGREEDKEY_ANY
CALG_CYLINK_MEK
CALG_DES
CALG_DESX
CALG_DH_EPHEM
CALG_DH_SF
CALG_DSS_SIGN
CALG_ECDH
CALG_ECDH_EPHEM
CALG_ECDSA
CALG_ECMQV
CALG_HASH_REPLACE_OWF
CALG_HUGHES_MD5
CALG_HMAC
CALG_KEA_KEYX
CALG_MAC
CALG_MD2
CALG_MD4
CALG_MD5
CALG_NO_SIGN
CALG_OID_INFO_CNG_ONLY
CALG_OID_INFO_PARAMETERS
CALG_PCT1_MASTER
CALG_RC2
CALG_RC4
CALG_RC5
CALG_RSA_KEYX
CALG_RSA_SIGN
CALG_SCHANNEL_ENC_KEY
CALG_SCHANNEL_MAC_KEY
CALG_SCHANNEL_MASTER_HASH
CALG_SEAL
CALG_SHA
CALG_SHA1
CALG_SHA_256
CALG_SHA_384
CALG_SHA_512
CALG_SKIPJACK
CALG_SSL2_MASTER
CALG_SSL3_MASTER
CALG_SSL3_SHAMD5
CALG_TEK
CALG_TLS1_MASTER
CALG_TLS1PRF

Example values when UseInternalSecurityAPI is True:

// The "Other" property could contain ONE of the following lines:
SSLEnabledCipherSuites=*
SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA
SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA;TLS_DH_ANON_WITH_AES_128_CBC_SHA

Possible values when UseInternalSecurityAPI is True include:

TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
TLS_DHE_DSS_WITH_AES_128_CBC_SHA
TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
TLS_DHE_DSS_WITH_AES_256_CBC_SHA
TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
TLS_DHE_DSS_WITH_DES_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
TLS_DHE_RSA_WITH_DES_CBC_SHA
TLS_RSA_WITH_AES_256_GCM_SHA384
TLS_RSA_WITH_AES_128_GCM_SHA256
TLS_RSA_WITH_3DES_EDE_CBC_SHA
TLS_RSA_WITH_AES_128_CBC_SHA
TLS_RSA_WITH_AES_128_CBC_SHA256
TLS_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_AES_256_CBC_SHA256
TLS_RSA_WITH_DES_CBC_SHA
TLS_RSA_WITH_RC4_128_MD5
TLS_RSA_WITH_RC4_128_SHA

If SSLEnabledProtocols is configured to use TLS 1.3 the following values are supported:

TLS_AES_128_GCM_SHA256
TLS_AES_256_GCM_SHA384

SSLEnabledCipherSuites is used together with SSLCipherStrength.

SSLEnabledProtocols: Used to enable/disable the supported security protocols.

Used to enable/disable the supported security protocols.

Not all supported protocols are enabled by default (the value of this setting is 4032). If you want more granular control over the enabled protocols, you can set this property to the binary 'OR' of one or more of the following values:


TLS1.3	12288 (Hex 3000) (Experimental)
TLS1.2	3072 (Hex C00) (Default)
TLS1.1	768 (Hex 300) (Default)
TLS1	192 (Hex C0) (Default)
SSL3	48 (Hex 30)
SSL2	12 (Hex 0C)

Note: TLS 1.1 and TLS1.2 support are only available starting with Windows 7.

Note: Enabling TLS 1.3 will automatically set UseInternalSecurityAPI to True.

SSLIncludeCertChain: Whether the entire certificate chain is included in the SSLServerAuthentication event.

This setting specifies whether the transport log contains the full certificate chain. By default this value is False and only the leaf certificate will be present.

If set to True all certificates returned by the server will be present in the transport log. This includes the leaf certificate, any intermediate certificate, and the root certificate.

Note: When UseInternalSecurityAPI is set to True this value is automatically set to True. This is needed for proper validation when using the internal provider.

SSLSecurityFlags: Flags that control certificate verification.

The following flags are defined (specified in hexadecimal notation). They can be or-ed together to exclude multiple conditions:


0x00000001	Ignore time validity status of certificate.
0x00000002	Ignore time validity status of CTL.
0x00000004	Ignore non-nested certificate times.
0x00000010	Allow unknown Certificate Authority.
0x00000020	Ignore wrong certificate usage.
0x00000100	Ignore unknown certificate revocation status.
0x00000200	Ignore unknown CTL signer revocation status.
0x00000400	Ignore unknown Certificate Authority revocation status.
0x00000800	Ignore unknown Root revocation status.
0x00008000	Allow test Root certificate.
0x00004000	Trust test Root certificate.
0x80000000	Ignore non-matching CN (certificate CN not-matching server name).

TLS12SignatureAlgorithms: Defines the allowed TLS 1.2 signature algorithms when UseInternalSecurityAPI is True.

This setting specifies the allowed server certificate signature algorithms when UseInternalSecurityAPI is True and SSLEnabledProtocols is set to allow TLS 1.2.

When specified the task will verify that the server certificate signature algorithm is among the values specified in this setting. If the server certificate signature algorithm is unsupported the task will fail with an error.

The format of this value is a comma separated list of hash-signature combinations. For instance: // The "Other" could contain ALL of these lines: UseInternalSecurityAPI=true SSLEnabledProtocols=3072 TLS12SignatureAlgorithms=sha1-rsa,sha1-dsa,sha256-rsa,sha256-dsa The default value for this setting is "sha1-rsa,sha1-dsa,sha224-rsa,sha224-dsa,sha256-rsa,sha256-dsa,sha384-rsa,sha384-dsa,sha512-rsa,sha512-dsa".

In order to not restrict the server's certificate signature algorithm, specify an empty string as the value for this setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.

TLS12SupportedGroups: The supported groups for ECC.

This setting specifies a comma separated list of named groups used in TLS 1.2 for ECC.

The default value is ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1.

When using TLS 1.2 and UseInternalSecurityAPI is set to True, the values refer to the supported groups for ECC. The following values are supported:

"ecdhe_secp256r1" (default)
"ecdhe_secp384r1" (default)
"ecdhe_secp521r1" (default)

TLS13KeyShareGroups: The groups for which to pregenerate key shares.

This setting specifies a comma separated list of named groups used in TLS 1.3 for key exchange. The groups specified here will have key share data pregenerated locally before establishing a connection. This can prevent an additional round trip during the handshake if the group is supported by the server.

The default value is set to balance common supported groups and the computational resources required to generate key shares. As a result only some groups are included by default in this setting.

Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used which is not present in this list it will incur an additional round trip and time to generate the key share for that group.

In most cases this setting does not need to be modified. This should only be modified if there is a specific reason to do so.

The default value is ecdhe_x25519,ecdhe_secp256r1,ecdhe_secp384r1,ffdhe_2048,ffdhe_3072

The values are ordered from most preferred to least preferred. The following values are supported:

"ecdhe_x25519" (default)
"ecdhe_x448"
"ecdhe_secp256r1" (default)
"ecdhe_secp384r1" (default)
"ecdhe_secp521r1"
"ffdhe_2048" (default)
"ffdhe_3072" (default)
"ffdhe_4096"
"ffdhe_6144"
"ffdhe_8192"

TLS13SignatureAlgorithms: The allowed certificate signature algorithms.

This setting holds a comma separated list of allowed signature algorithms. Possible values are:

"rsa_pkcs1_sha256" (default)
"rsa_pkcs1_sha384" (default)
"rsa_pkcs1_sha512" (default)

The default value is rsa_pkcs1_sha256,rsa_pkcs1_sha384,rsa_pkcs1_sha512. This setting is only applicable when SSLEnabledProtocols includes TLS 1.3.

TLS13SupportedGroups: The supported groups for (EC)DHE key exchange.

This setting specifies a comma separated list of named groups used in TLS 1.3 for key exchange. This setting should only be modified if there is a specific reason to do so.

The default value is ecdhe_x25519,ecdhe_x448,ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1,ffdhe_2048,ffdhe_3072,ffdhe_4096,ffdhe_6144,ffdhe_8192

The values are ordered from most preferred to least preferred. The following values are supported:

"ecdhe_x25519" (default)
"ecdhe_x448" (default)
"ecdhe_secp256r1" (default)
"ecdhe_secp384r1" (default)
"ecdhe_secp521r1" (default)
"ffdhe_2048" (default)
"ffdhe_3072" (default)
"ffdhe_4096" (default)
"ffdhe_6144" (default)
"ffdhe_8192" (default)

General Config Settings

AbsoluteTimeout: Determines whether timeouts are inactivity timeouts or absolute timeouts.

If AbsoluteTimeout is set to True, any method which does not complete within Timeout seconds will be aborted. By default, AbsoluteTimeout is False, and the timeout is an inactivity timeout.

LocalHost: The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

The LocalHost configuration contains the name of the local host as obtained by the Gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multihomed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the task initiate connections (or accept in the case of server tasks) only through that interface.

If the task is connected, the LocalHost configuration shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multihomed hosts (machines with more than one IP interface).

TcpNoDelay: Whether or not to delay when sending packets.

When true, the socket will send all data that is ready to send at once. When false, the socket will send smaller buffered packets of data at small intervals. This is known as the Nagle algorithm.

By default, this config is set to false.

UseInternalSecurityAPI: Tells the task whether or not to use the system security libraries or an internal implementation.

When set to False, the task will use the system security libraries by default to perform cryptographic functions where applicable. In this case, calls to unmanaged code will be made. In certain environments this is not desirable. To use a completely managed security implementation set this setting to True.

Setting this setting to True tells the task to use the internal implementation instead of using the system security libraries.

On Windows, this setting is set to False by default. On Linux/macOS, this setting is set to True by default.

If using the .NET Standard Library, this setting will be True on all platforms. The .NET Standard library does not support using the system security libraries.

Note: This setting is static. The value set is applicable to all tasks used in the application.

When this value is set the product's system DLL is no longer required as a reference, as all unmanaged code is stored in that file.