AzureRelayProxy Class
Properties Methods Events Config Settings Errors
Allows local connections to be proxied to the Azure Relay Service.
Syntax
class ipworksmq.AzureRelayProxy
Remarks
The AzureRelayProxy class is designed to listen locally and forward received data over a connection to the Azure Relay Service.
This allows any TCP-based client to connect and send data to Azure Relay Service without any additional knowledge. When listening and a client connects a corresponding connection is made to the specified namespace_address and data then flows freely between the connected client and the Azure Relay Service. Each new connection made to AzureRelayProxy results in a new connection made to the Azure Relay Service. Connections are not shared between clients.
The diagram below illustrates the design of this class.
+---------+ +----------+
Client A <---- TCP ----> | Azure | <==== WebSocket ====> | Azure |
Client B <---- TCP ----> | Relay | <==== WebSocket ====> | Relay |
Client C <---- TCP ----> | Proxy | <==== WebSocket ====> | Service |
+---------+ +----------+
Authenticating and Listening
Authentication to Azure Relay is performed using the Shared Access Key Name and Shared Access Key created from the Azure portal for the Relay. To begin listening for incoming connections set listening to True.
When set to True the class will begin listening for incoming connection. When a connection is made a corresponding connection is made to the Azure Relay Service. The following properties are required when setting listening:
- access_key (required)
- access_key_name (required)
- hybrid_connection (required)
- namespace_address (required)
To use SSL for incoming connections set ssl_cert to a valid certificate with private key and set ssl_enabled to True before setting listening.
do_events should be called in a loop to ensure timely processing of all activity, including connection requests and data transfer.
To stop listening set listening to False. To shutdown the server including existing connections call shutdown.
Handling Connections
When a connection is made the on_connection_request event fires with information about the connecting client. From within this event the client connection may be accepted (default) or rejected.
If the client connection is accepted the on_connected event fire when the connection completes and is ready to send and receive data.
Data will be proxied between the connected client and the Azure Relay Service. No special steps are required.
When the client disconnects the on_disconnected event fires. To initiate the client disconnection call disconnect.
Property List
The following is the full list of the properties of the class with short descriptions. Click on the links for further details.
| access_key | The Shared Access Key. |
| access_key_name | The Shared Access Key Name. |
| connection_backlog | This property includes the maximum number of pending connections maintained by the Transmission Control Protocol (TCP)/IP subsystem. |
| azure_relay_proxy_connection_count | The number of records in the AzureRelayProxyConnection arrays. |
| azure_relay_proxy_connection_connected | This property indicates the status of individual connections. |
| azure_relay_proxy_connection_connection_id | This property contains an identifier generated by the class to identify each connection. |
| azure_relay_proxy_connection_idle_timeout | This property contains the idle timeout for this connection. |
| azure_relay_proxy_connection_local_address | This property shows the IP address of the interface through which the connection is passing. |
| azure_relay_proxy_connection_remote_host | This property shows the IP address of the remote host through which the connection is coming. |
| azure_relay_proxy_connection_remote_port | This property shows the Transmission Control Protocol (TCP) port on the remote host through which the connection is coming. |
| azure_relay_proxy_connection_timeout | This property specifies a timeout for the class. |
| azure_relay_proxy_connection_user_data | The UserData property holds connection-specific user-specified data. |
| default_idle_timeout | This property includes the default idle timeout for inactive clients. |
| default_timeout | This property includes an initial timeout value to be used by incoming connections. |
| hybrid_connection | The hybrid connection name. |
| keep_alive | When True, KEEPALIVE packets are enabled (for long connections). |
| linger | When set to True, connections are terminated gracefully. |
| listening | This property indicates whether the class is listening for incoming connections on LocalPort. |
| local_host | The name of the local host or user-assigned IP interface through which connections are initiated or accepted. |
| local_port | This property includes the Transmission Control Protocol (TCP) port in the local host where the class listens. |
| namespace_address | The namespace address of the relay. |
| ssl_authenticate_clients | If set to True, the server asks the client(s) for a certificate. |
| ssl_cert_effective_date | The date on which this certificate becomes valid. |
| ssl_cert_expiration_date | The date on which the certificate expires. |
| ssl_cert_extended_key_usage | A comma-delimited list of extended key usage identifiers. |
| ssl_cert_fingerprint | The hex-encoded, 16-byte MD5 fingerprint of the certificate. |
| ssl_cert_fingerprint_sha1 | The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. |
| ssl_cert_fingerprint_sha256 | The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. |
| ssl_cert_issuer | The issuer of the certificate. |
| ssl_cert_private_key | The private key of the certificate (if available). |
| ssl_cert_private_key_available | Whether a PrivateKey is available for the selected certificate. |
| ssl_cert_private_key_container | The name of the PrivateKey container for the certificate (if available). |
| ssl_cert_public_key | The public key of the certificate. |
| ssl_cert_public_key_algorithm | The textual description of the certificate's public key algorithm. |
| ssl_cert_public_key_length | The length of the certificate's public key (in bits). |
| ssl_cert_serial_number | The serial number of the certificate encoded as a string. |
| ssl_cert_signature_algorithm | The text description of the certificate's signature algorithm. |
| ssl_cert_store | The name of the certificate store for the client certificate. |
| ssl_cert_store_password | If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. |
| ssl_cert_store_type | The type of certificate store for this certificate. |
| ssl_cert_subject_alt_names | Comma-separated lists of alternative subject names for the certificate. |
| ssl_cert_thumbprint_md5 | The MD5 hash of the certificate. |
| ssl_cert_thumbprint_sha1 | The SHA-1 hash of the certificate. |
| ssl_cert_thumbprint_sha256 | The SHA-256 hash of the certificate. |
| ssl_cert_usage | The text description of UsageFlags . |
| ssl_cert_usage_flags | The flags that show intended use for the certificate. |
| ssl_cert_version | The certificate's version number. |
| ssl_cert_subject | The subject of the certificate used for client authentication. |
| ssl_cert_encoded | The certificate (PEM/Base64 encoded). |
| ssl_enabled | This property indicates whether Transport Layer Security/Secure Sockets Layer (TLS/SSL) is enabled. |
| ssl_start_mode | This property determines how the class starts the Secure Sockets Layer (SSL) negotiation. |
Method List
The following is the full list of the methods of the class with short descriptions. Click on the links for further details.
| config | Sets or retrieves a configuration setting. |
| disconnect | This method disconnects the specified client. |
| do_events | This method processes events from the internal message queue. |
| reset | This method will reset the class. |
| shutdown | This method shuts down the server. |
| start_listening | This method starts listening for incoming connections. |
| stop_listening | This method stops listening for new connections. |
Event List
The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.
| on_connected | This event is fired immediately after a connection completes (or fails). |
| on_connection_request | This event is fired when a request for connection comes from a remote host. |
| on_disconnected | This event is fired when a connection is closed. |
| on_error | This event fires information about errors during data delivery. |
| on_log | This event fires once for each log message. |
| on_ssl_client_authentication | This event is fired when the client presents its credentials to the server. |
| on_ssl_connection_request | This event fires when a Secure Sockets Layer (SSL) connection is requested. |
| on_ssl_status | This event is fired to show the progress of the secure connection. |
Config Settings
The following is a list of config settings for the class with short descriptions. Click on the links for further details.
| AccessToken | Returns an access token for use outside of the classes. |
| LogLevel | The level of detail that is logged. |
| TokenValidity | The validity time in seconds of the access token. |
| AcceptEncoding | Used to tell the server which types of content encodings the client supports. |
| AllowHTTPCompression | This property enables HTTP compression for receiving data. |
| AllowHTTPFallback | Whether HTTP/2 connections are permitted to fallback to HTTP/1.1. |
| Append | Whether to append data to LocalFile. |
| Authorization | The Authorization string to be sent to the server. |
| BytesTransferred | Contains the number of bytes transferred in the response data. |
| ChunkSize | Specifies the chunk size in bytes when using chunked encoding. |
| CompressHTTPRequest | Set to true to compress the body of a PUT or POST request. |
| EncodeURL | If set to True the URL will be encoded by the class. |
| FollowRedirects | Determines what happens when the server issues a redirect. |
| GetOn302Redirect | If set to True the class will perform a GET on the new location. |
| HTTP2HeadersWithoutIndexing | HTTP2 headers that should not update the dynamic header table with incremental indexing. |
| HTTPVersion | The version of HTTP used by the class. |
| IfModifiedSince | A date determining the maximum age of the desired document. |
| KeepAlive | Determines whether the HTTP connection is closed after completion of the request. |
| KerberosSPN | The Service Principal Name for the Kerberos Domain Controller. |
| LogLevel | The level of detail that is logged. |
| MaxRedirectAttempts | Limits the number of redirects that are followed in a request. |
| NegotiatedHTTPVersion | The negotiated HTTP version. |
| OtherHeaders | Other headers as determined by the user (optional). |
| ProxyAuthorization | The authorization string to be sent to the proxy server. |
| ProxyAuthScheme | The authorization scheme to be used for the proxy. |
| ProxyPassword | A password if authentication is to be used for the proxy. |
| ProxyPort | Port for the proxy server (default 80). |
| ProxyServer | Name or IP address of a proxy server (optional). |
| ProxyUser | A user name if authentication is to be used for the proxy. |
| SentHeaders | The full set of headers as sent by the client. |
| StatusCode | The status code of the last response from the server. |
| StatusLine | The first line of the last response from the server. |
| TransferredData | The contents of the last response from the server. |
| TransferredDataLimit | The maximum number of incoming bytes to be stored by the class. |
| TransferredHeaders | The full set of headers as received from the server. |
| TransferredRequest | The full request as sent by the client. |
| UseChunkedEncoding | Enables or Disables HTTP chunked encoding for transfers. |
| UseIDNs | Whether to encode hostnames to internationalized domain names. |
| UsePlatformHTTPClient | Whether or not to use the platform HTTP client. |
| UseProxyAutoConfigURL | Whether to use a Proxy auto-config file when attempting a connection. |
| UserAgent | Information about the user agent (browser). |
| ConnectionTimeout | Sets a separate timeout value for establishing a connection. |
| FirewallAutoDetect | Tells the class whether or not to automatically detect and use firewall system settings, if available. |
| FirewallHost | Name or IP address of firewall (optional). |
| FirewallPassword | Password to be used if authentication is to be used when connecting through the firewall. |
| FirewallPort | The TCP port for the FirewallHost;. |
| FirewallType | Determines the type of firewall to connect through. |
| FirewallUser | A user name if authentication is to be used connecting through a firewall. |
| KeepAliveInterval | The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received. |
| KeepAliveTime | The inactivity time in milliseconds before a TCP keep-alive packet is sent. |
| Linger | When set to True, connections are terminated gracefully. |
| LingerTime | Time in seconds to have the connection linger. |
| LocalHost | The name of the local host through which connections are initiated or accepted. |
| LocalPort | The port in the local host where the class binds. |
| MaxLineLength | The maximum amount of data to accumulate when no EOL is found. |
| MaxTransferRate | The transfer rate limit in bytes per second. |
| ProxyExceptionsList | A semicolon separated list of hosts and IPs to bypass when using a proxy. |
| TCPKeepAlive | Determines whether or not the keep alive socket option is enabled. |
| TcpNoDelay | Whether or not to delay when sending packets. |
| UseIPv6 | Whether to use IPv6. |
| LogSSLPackets | Controls whether SSL packets are logged when using the internal security API. |
| OpenSSLCADir | The path to a directory containing CA certificates. |
| OpenSSLCAFile | Name of the file containing the list of CA's trusted by your application. |
| OpenSSLCipherList | A string that controls the ciphers to be used by SSL. |
| OpenSSLPrngSeedData | The data to seed the pseudo random number generator (PRNG). |
| ReuseSSLSession | Determines if the SSL session is reused. |
| SSLCACertFilePaths | The paths to CA certificate files on Unix/Linux. |
| SSLCACerts | A newline separated list of CA certificates to be included when performing an SSL handshake. |
| SSLCheckCRL | Whether to check the Certificate Revocation List for the server certificate. |
| SSLCheckOCSP | Whether to use OCSP to check the status of the server certificate. |
| SSLCipherStrength | The minimum cipher strength used for bulk encryption. |
| SSLClientCACerts | A newline separated list of CA certificates to use during SSL client certificate validation. |
| SSLEnabledCipherSuites | The cipher suite to be used in an SSL negotiation. |
| SSLEnabledProtocols | Used to enable/disable the supported security protocols. |
| SSLEnableRenegotiation | Whether the renegotiation_info SSL extension is supported. |
| SSLIncludeCertChain | Whether the entire certificate chain is included in the SSLServerAuthentication event. |
| SSLKeyLogFile | The location of a file where per-session secrets are written for debugging purposes. |
| SSLNegotiatedCipher | Returns the negotiated cipher suite. |
| SSLNegotiatedCipherStrength | Returns the negotiated cipher suite strength. |
| SSLNegotiatedCipherSuite | Returns the negotiated cipher suite. |
| SSLNegotiatedKeyExchange | Returns the negotiated key exchange algorithm. |
| SSLNegotiatedKeyExchangeStrength | Returns the negotiated key exchange algorithm strength. |
| SSLNegotiatedVersion | Returns the negotiated protocol version. |
| SSLSecurityFlags | Flags that control certificate verification. |
| SSLServerCACerts | A newline separated list of CA certificates to use during SSL server certificate validation. |
| TLS12SignatureAlgorithms | Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal. |
| 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. |
| FirewallData | Used to send extra data to the firewall. |
| InBufferSize | The size in bytes of the incoming queue of the socket. |
| OutBufferSize | The size in bytes of the outgoing queue of the socket. |
access_key Property
The Shared Access Key.
Syntax
def get_access_key() -> str: ... def set_access_key(value: str) -> None: ...
access_key = property(get_access_key, set_access_key)
Default Value
""
Remarks
This property specifies the Shared Access Key to use when authenticating. This is the primary or secondary key of the shared access policy created in the Azure portal. For instance 8oKRDwkl0s440MlLUi4qHxDL34j1FS6K3t5TRoJ216c=.
access_key_name Property
The Shared Access Key Name.
Syntax
def get_access_key_name() -> str: ... def set_access_key_name(value: str) -> None: ...
access_key_name = property(get_access_key_name, set_access_key_name)
Default Value
""
Remarks
This property specifies the Shared Access Key name to use when authenticating. This is the name of the shared access policy created in the Azure portal. For instance RootManageSharedAccessKey.
connection_backlog Property
This property includes the maximum number of pending connections maintained by the Transmission Control Protocol (TCP)/IP subsystem.
Syntax
def get_connection_backlog() -> int: ... def set_connection_backlog(value: int) -> None: ...
connection_backlog = property(get_connection_backlog, set_connection_backlog)
Default Value
5
Remarks
This property contains the maximum number of pending connections maintained by the TCP/IP subsystem. This value reflects the SOMAXCONN option for the main listening socket. The default value for most systems is 5. You may set this property to a larger value if the server is expected to receive a large number of connections, and queuing them is desirable.
azure_relay_proxy_connection_count Property
The number of records in the AzureRelayProxyConnection arrays.
Syntax
def get_azure_relay_proxy_connection_count() -> int: ...
azure_relay_proxy_connection_count = property(get_azure_relay_proxy_connection_count, None)
Default Value
0
Remarks
This property controls the size of the following arrays:
- azure_relay_proxy_connection_connected
- azure_relay_proxy_connection_connection_id
- azure_relay_proxy_connection_idle_timeout
- azure_relay_proxy_connection_local_address
- azure_relay_proxy_connection_remote_host
- azure_relay_proxy_connection_remote_port
- azure_relay_proxy_connection_timeout
- azure_relay_proxy_connection_user_data
This property is read-only.
azure_relay_proxy_connection_connected Property
This property indicates the status of individual connections.
Syntax
def get_azure_relay_proxy_connection_connected(connection_id: int) -> bool: ...
Default Value
FALSE
Remarks
This property indicates the status of individual connections.
When True, the connection is established. Use the disconnect method to disconnect an existing connection.
The connection_id parameter specifies the index of the item in the array. The size of the array is controlled by the azure_relay_proxy_connection_count property.
This property is read-only.
azure_relay_proxy_connection_connection_id Property
This property contains an identifier generated by the class to identify each connection.
Syntax
def get_azure_relay_proxy_connection_connection_id(connection_id: int) -> int: ...
Default Value
0
Remarks
This property contains an identifier generated by the class to identify each connection. This identifier is unique to this connection.
The connection_id parameter specifies the index of the item in the array. The size of the array is controlled by the azure_relay_proxy_connection_count property.
This property is read-only.
azure_relay_proxy_connection_idle_timeout Property
This property contains the idle timeout for this connection.
Syntax
def get_azure_relay_proxy_connection_idle_timeout(connection_id: int) -> int: ... def set_azure_relay_proxy_connection_idle_timeout(connection_id: int, value: int) -> None: ...
Default Value
0
Remarks
This property contains the idle timeout for this connection. This property is similar to default_idle_timeout but may be set on a per-connection basis to override default_idle_timeout. This property specifies the idle timeout (in seconds) for the connected client. When set to a positive value, the class will disconnect idle clients after the specified timeout.
This applies only to clients that have not sent to received data within the specified number of seconds.
If set to 0 (default), no idle timeout is applied.
Note: do_events must be called for the class to check existing connections.
The connection_id parameter specifies the index of the item in the array. The size of the array is controlled by the azure_relay_proxy_connection_count property.
azure_relay_proxy_connection_local_address Property
This property shows the IP address of the interface through which the connection is passing.
Syntax
def get_azure_relay_proxy_connection_local_address(connection_id: int) -> str: ...
Default Value
""
Remarks
This property shows the IP address of the interface through which the connection is passing.
azure_relay_proxy_connection_local_address is important for multihomed hosts so that it can be used to find the particular network interface through which an individual connection is going.
The connection_id parameter specifies the index of the item in the array. The size of the array is controlled by the azure_relay_proxy_connection_count property.
This property is read-only.
azure_relay_proxy_connection_remote_host Property
This property shows the IP address of the remote host through which the connection is coming.
Syntax
def get_azure_relay_proxy_connection_remote_host(connection_id: int) -> str: ...
Default Value
""
Remarks
This property shows the IP address of the remote host through which the connection is coming.
The connection must be valid or an error will be fired.
If the class is configured to use a SOCKS firewall, the value assigned to this property may be preceded with an "*". If this is the case, the host name is passed to the firewall unresolved and the firewall performs the DNS resolution.
The connection_id parameter specifies the index of the item in the array. The size of the array is controlled by the azure_relay_proxy_connection_count property.
This property is read-only.
azure_relay_proxy_connection_remote_port Property
This property shows the Transmission Control Protocol (TCP) port on the remote host through which the connection is coming.
Syntax
def get_azure_relay_proxy_connection_remote_port(connection_id: int) -> int: ...
Default Value
0
Remarks
This property shows the Transmission Control Protocol (TCP) port on the remote host through which the connection is coming.
The connection must be valid or an error will be fired.
The connection_id parameter specifies the index of the item in the array. The size of the array is controlled by the azure_relay_proxy_connection_count property.
This property is read-only.
azure_relay_proxy_connection_timeout Property
This property specifies a timeout for the class.
Syntax
def get_azure_relay_proxy_connection_timeout(connection_id: int) -> int: ... def set_azure_relay_proxy_connection_timeout(connection_id: int, value: int) -> None: ...
Default Value
0
Remarks
This property specifies a timeout for the class.
If the azure_relay_proxy_connection_timeout property is set to 0, all operations return immediately, potentially failing with a WOULDBLOCK error if data cannot be sent immediately.
If azure_relay_proxy_connection_timeout is set to a positive value, data is sent in a blocking manner and the class will wait for the operation to complete before returning control. The class will handle any potential WOULDBLOCK errors internally and automatically retry the operation for a maximum of azure_relay_proxy_connection_timeout seconds.
The class will use do_events to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not freeze and remains responsive.
If timeout expires, and the operation is not yet complete, the class fails with an error.
Note: By default, all timeouts are inactivity timeouts, that is, the timeout period is extended by timeout seconds when any amount of data is successfully sent or received.
The default value for the azure_relay_proxy_connection_timeout property is 0 (asynchronous operation).
The connection_id parameter specifies the index of the item in the array. The size of the array is controlled by the azure_relay_proxy_connection_count property.
azure_relay_proxy_connection_user_data Property
The UserData property holds connection-specific user-specified data.
Syntax
def get_azure_relay_proxy_connection_user_data(connection_id: int) -> bytes: ... def set_azure_relay_proxy_connection_user_data(connection_id: int, value: bytes) -> None: ...
Default Value
""
Remarks
The azure_relay_proxy_connection_user_data property holds connection-specific user-specified data.
User-specified data may be set or retrieved at any point while the connection is valid. This provides a simple way to associate arbitrary data with a specific connection.
The connection_id parameter specifies the index of the item in the array. The size of the array is controlled by the azure_relay_proxy_connection_count property.
default_idle_timeout Property
This property includes the default idle timeout for inactive clients.
Syntax
def get_default_idle_timeout() -> int: ... def set_default_idle_timeout(value: int) -> None: ...
default_idle_timeout = property(get_default_idle_timeout, set_default_idle_timeout)
Default Value
0
Remarks
This property specifies the idle timeout (in seconds) for clients. When set to a positive value, the class will disconnect idle clients after the specified timeout.
This applies only to clients that have not sent or received data within default_idle_timeout seconds.
If set to 0 (default), no idle timeout is applied.
Note: do_events must be called for the class to check existing connections.
default_timeout Property
This property includes an initial timeout value to be used by incoming connections.
Syntax
def get_default_timeout() -> int: ... def set_default_timeout(value: int) -> None: ...
default_timeout = property(get_default_timeout, set_default_timeout)
Default Value
0
Remarks
This property is used by the class to set the operational timeout value of all inbound connections once they are established.
By default, the timeout is 0, meaning that all inbound connections will behave asynchronously.
hybrid_connection Property
The hybrid connection name.
Syntax
def get_hybrid_connection() -> str: ... def set_hybrid_connection(value: str) -> None: ...
hybrid_connection = property(get_hybrid_connection, set_hybrid_connection)
Default Value
""
Remarks
This setting specifies the name of the hybrid connection that was created in the Azure portal. For instance hc1.
keep_alive Property
When True, KEEPALIVE packets are enabled (for long connections).
Syntax
def get_keep_alive() -> bool: ... def set_keep_alive(value: bool) -> None: ...
keep_alive = property(get_keep_alive, set_keep_alive)
Default Value
FALSE
Remarks
This property enables the SO_KEEPALIVE option on the incoming connections. This option prevents long connections from timing out in case of inactivity.
Note: System Transmission Control Protocol (TCP)/IP stack implementations are not required to support SO_KEEPALIVE.
This property is shared among incoming connections. When the property is set, the corresponding value is set for incoming connections as they are accepted. Existing connections are not modified.
linger Property
When set to True, connections are terminated gracefully.
Syntax
def get_linger() -> bool: ... def set_linger(value: bool) -> None: ...
linger = property(get_linger, set_linger)
Default Value
TRUE
Remarks
This property controls how a connection is closed. The default is True. In this case, the connection is closed only after all the data are sent. Setting it to False forces an abrupt (hard) disconnection. Any data that were in the sending queue may be lost.
The default behavior (which is also the default mode for stream sockets) might result in an indefinite delay in closing the connection. Although the class returns control immediately, the system might indefinitely hold system resources until all pending data are sent (even after your application closes). This means that valuable system resources might be wasted.
Setting this property to False forces an immediate disconnection. If you know that the other side has received all the data you have sent (e.g., by a client acknowledgment), then setting this property to False might be the appropriate course of action.
This property is shared among incoming connections. When the property is set, the corresponding value is set for incoming connections as they are accepted. Existing connections are not modified.
listening Property
This property indicates whether the class is listening for incoming connections on LocalPort.
Syntax
def get_listening() -> bool: ...
listening = property(get_listening, None)
Default Value
FALSE
Remarks
This property indicates whether the class is listening for connections on the port specified by the local_port property. Use the start_listening and stop_listening methods to control whether the class is listening.
This property is read-only.
local_host Property
The name of the local host or user-assigned IP interface through which connections are initiated or accepted.
Syntax
def get_local_host() -> str: ... def set_local_host(value: str) -> None: ...
local_host = property(get_local_host, set_local_host)
Default Value
""
Remarks
This property 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 IP address of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface. It is recommended to provide an IP address rather than a hostname when setting this property to ensure the desired interface is used.
If the class is connected, the local_host property 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).
Note: local_host is not persistent. You must always set it in code, and never in the property window.
local_port Property
This property includes the Transmission Control Protocol (TCP) port in the local host where the class listens.
Syntax
def get_local_port() -> int: ... def set_local_port(value: int) -> None: ...
local_port = property(get_local_port, set_local_port)
Default Value
0
Remarks
This property must be set before the class can start listening. If its value is 0, then the TCP/IP subsystem picks a port number at random. The port number can be found by checking the value of this property after the class is listening (i.e., after successfully assigning True to the listening property).
The service port is not shared among servers so two classs cannot be listening on the same port at the same time.
namespace_address Property
The namespace address of the relay.
Syntax
def get_namespace_address() -> str: ... def set_namespace_address(value: str) -> None: ...
namespace_address = property(get_namespace_address, set_namespace_address)
Default Value
""
Remarks
This property specifies the full fully qualified domain name of the relay namespace. For instance myrelay.servicebus.windows.net.
ssl_authenticate_clients Property
If set to True, the server asks the client(s) for a certificate.
Syntax
def get_ssl_authenticate_clients() -> bool: ... def set_ssl_authenticate_clients(value: bool) -> None: ...
ssl_authenticate_clients = property(get_ssl_authenticate_clients, set_ssl_authenticate_clients)
Default Value
FALSE
Remarks
This property is used in conjunction with the on_ssl_client_authentication event. Please refer to the documentation of the on_ssl_client_authentication event for details.
ssl_cert_effective_date Property
The date on which this certificate becomes valid.
Syntax
def get_ssl_cert_effective_date() -> str: ...
ssl_cert_effective_date = property(get_ssl_cert_effective_date, None)
Default Value
""
Remarks
The date on which this certificate becomes valid. Before this date, it is not valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:
23-Jan-2000 15:00:00.
This property is read-only.
ssl_cert_expiration_date Property
The date on which the certificate expires.
Syntax
def get_ssl_cert_expiration_date() -> str: ...
ssl_cert_expiration_date = property(get_ssl_cert_expiration_date, None)
Default Value
""
Remarks
The date on which the certificate expires. After this date, the certificate will no longer be valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:
23-Jan-2001 15:00:00.
This property is read-only.
ssl_cert_extended_key_usage Property
A comma-delimited list of extended key usage identifiers.
Syntax
def get_ssl_cert_extended_key_usage() -> str: ...
ssl_cert_extended_key_usage = property(get_ssl_cert_extended_key_usage, None)
Default Value
""
Remarks
A comma-delimited list of extended key usage identifiers. These are the same as ASN.1 object identifiers (OIDs).
This property is read-only.
ssl_cert_fingerprint Property
The hex-encoded, 16-byte MD5 fingerprint of the certificate.
Syntax
def get_ssl_cert_fingerprint() -> str: ...
ssl_cert_fingerprint = property(get_ssl_cert_fingerprint, None)
Default Value
""
Remarks
The hex-encoded, 16-byte MD5 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.
The following example illustrates the format: bc:2a:72:af:fe:58:17:43:7a:5f:ba:5a:7c:90:f7:02
This property is read-only.
ssl_cert_fingerprint_sha1 Property
The hex-encoded, 20-byte SHA-1 fingerprint of the certificate.
Syntax
def get_ssl_cert_fingerprint_sha1() -> str: ...
ssl_cert_fingerprint_sha1 = property(get_ssl_cert_fingerprint_sha1, None)
Default Value
""
Remarks
The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.
The following example illustrates the format: 30:7b:fa:38:65:83:ff:da:b4:4e:07:3f:17:b8:a4:ed:80:be:ff:84
This property is read-only.
ssl_cert_fingerprint_sha256 Property
The hex-encoded, 32-byte SHA-256 fingerprint of the certificate.
Syntax
def get_ssl_cert_fingerprint_sha256() -> str: ...
ssl_cert_fingerprint_sha256 = property(get_ssl_cert_fingerprint_sha256, None)
Default Value
""
Remarks
The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.
The following example illustrates the format: 6a:80:5c:33:a9:43:ea:b0:96:12:8a:64:96:30:ef:4a:8a:96:86:ce:f4:c7:be:10:24:8e:2b:60:9e:f3:59:53
This property is read-only.
ssl_cert_issuer Property
The issuer of the certificate.
Syntax
def get_ssl_cert_issuer() -> str: ...
ssl_cert_issuer = property(get_ssl_cert_issuer, None)
Default Value
""
Remarks
The issuer of the certificate. This property contains a string representation of the name of the issuing authority for the certificate.
This property is read-only.
ssl_cert_private_key Property
The private key of the certificate (if available).
Syntax
def get_ssl_cert_private_key() -> str: ...
ssl_cert_private_key = property(get_ssl_cert_private_key, None)
Default Value
""
Remarks
The private key of the certificate (if available). The key is provided as PEM/Base64-encoded data.
Note: The ssl_cert_private_key may be available but not exportable. In this case, ssl_cert_private_key returns an empty string.
This property is read-only.
ssl_cert_private_key_available Property
Whether a PrivateKey is available for the selected certificate.
Syntax
def get_ssl_cert_private_key_available() -> bool: ...
ssl_cert_private_key_available = property(get_ssl_cert_private_key_available, None)
Default Value
FALSE
Remarks
Whether a ssl_cert_private_key is available for the selected certificate. If ssl_cert_private_key_available is True, the certificate may be used for authentication purposes (e.g., server authentication).
This property is read-only.
ssl_cert_private_key_container Property
The name of the PrivateKey container for the certificate (if available).
Syntax
def get_ssl_cert_private_key_container() -> str: ...
ssl_cert_private_key_container = property(get_ssl_cert_private_key_container, None)
Default Value
""
Remarks
The name of the ssl_cert_private_key container for the certificate (if available). This functionality is available only on Windows platforms.
This property is read-only.
ssl_cert_public_key Property
The public key of the certificate.
Syntax
def get_ssl_cert_public_key() -> str: ...
ssl_cert_public_key = property(get_ssl_cert_public_key, None)
Default Value
""
Remarks
The public key of the certificate. The key is provided as PEM/Base64-encoded data.
This property is read-only.
ssl_cert_public_key_algorithm Property
The textual description of the certificate's public key algorithm.
Syntax
def get_ssl_cert_public_key_algorithm() -> str: ...
ssl_cert_public_key_algorithm = property(get_ssl_cert_public_key_algorithm, None)
Default Value
""
Remarks
The textual description of the certificate's public key algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_DH") or an object identifier (OID) string representing the algorithm.
This property is read-only.
ssl_cert_public_key_length Property
The length of the certificate's public key (in bits).
Syntax
def get_ssl_cert_public_key_length() -> int: ...
ssl_cert_public_key_length = property(get_ssl_cert_public_key_length, None)
Default Value
0
Remarks
The length of the certificate's public key (in bits). Common values are 512, 1024, and 2048.
This property is read-only.
ssl_cert_serial_number Property
The serial number of the certificate encoded as a string.
Syntax
def get_ssl_cert_serial_number() -> str: ...
ssl_cert_serial_number = property(get_ssl_cert_serial_number, None)
Default Value
""
Remarks
The serial number of the certificate encoded as a string. The number is encoded as a series of hexadecimal digits, with each pair representing a byte of the serial number.
This property is read-only.
ssl_cert_signature_algorithm Property
The text description of the certificate's signature algorithm.
Syntax
def get_ssl_cert_signature_algorithm() -> str: ...
ssl_cert_signature_algorithm = property(get_ssl_cert_signature_algorithm, None)
Default Value
""
Remarks
The text description of the certificate's signature algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_MD5RSA") or an object identifier (OID) string representing the algorithm.
This property is read-only.
ssl_cert_store Property
The name of the certificate store for the client certificate.
Syntax
def get_ssl_cert_store() -> bytes: ... def set_ssl_cert_store(value: bytes) -> None: ...
ssl_cert_store = property(get_ssl_cert_store, set_ssl_cert_store)
Default Value
"MY"
Remarks
The name of the certificate store for the client certificate.
The ssl_cert_store_type property denotes the type of the certificate store specified by ssl_cert_store. If the store is password-protected, specify the password in ssl_cert_store_password.
ssl_cert_store is used in conjunction with the ssl_cert_subject property to specify client certificates. If ssl_cert_store has a value, and ssl_cert_subject or ssl_cert_encoded is set, a search for a certificate is initiated. Please see the ssl_cert_subject property for details.
Designations of certificate stores are platform dependent.
The following designations are 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. |
When the certificate store type is cstPFXFile, this property must be set to the name of the file. When the type is cstPFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).
ssl_cert_store_password Property
If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
Syntax
def get_ssl_cert_store_password() -> str: ... def set_ssl_cert_store_password(value: str) -> None: ...
ssl_cert_store_password = property(get_ssl_cert_store_password, set_ssl_cert_store_password)
Default Value
""
Remarks
If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
ssl_cert_store_type Property
The type of certificate store for this certificate.
Syntax
def get_ssl_cert_store_type() -> int: ... def set_ssl_cert_store_type(value: int) -> None: ...
ssl_cert_store_type = property(get_ssl_cert_store_type, set_ssl_cert_store_type)
Default Value
0
Remarks
The type of certificate store for this certificate.
The class supports both public and private keys in a variety of formats. When the cstAuto value is used, the class will automatically determine the type. This property 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 (PKCS#12) file containing certificates. |
| 3 (cstPFXBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) 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 PKCS#7 file containing certificates. |
| 12 (cstP7BBlob) | The certificate store is a string (binary) representing a certificate store in PKCS#7 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 PKCS#11 interface.
To use a security key, the necessary data must first be collected using the CertMgr class. The list_store_certificates method may be called after setting cert_store_type to cstPKCS11, cert_store_password to the PIN, and cert_store to the full path of the PKCS#11 DLL. The certificate information returned in the on_cert_list event's CertEncoded parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the ssl_cert_store and set ssl_cert_store_password to the PIN. Code Example. SSH Authentication with Security Key:
|
| 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. |
ssl_cert_subject_alt_names Property
Comma-separated lists of alternative subject names for the certificate.
Syntax
def get_ssl_cert_subject_alt_names() -> str: ...
ssl_cert_subject_alt_names = property(get_ssl_cert_subject_alt_names, None)
Default Value
""
Remarks
Comma-separated lists of alternative subject names for the certificate.
This property is read-only.
ssl_cert_thumbprint_md5 Property
The MD5 hash of the certificate.
Syntax
def get_ssl_cert_thumbprint_md5() -> str: ...
ssl_cert_thumbprint_md5 = property(get_ssl_cert_thumbprint_md5, None)
Default Value
""
Remarks
The MD5 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.
This property is read-only.
ssl_cert_thumbprint_sha1 Property
The SHA-1 hash of the certificate.
Syntax
def get_ssl_cert_thumbprint_sha1() -> str: ...
ssl_cert_thumbprint_sha1 = property(get_ssl_cert_thumbprint_sha1, None)
Default Value
""
Remarks
The SHA-1 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.
This property is read-only.
ssl_cert_thumbprint_sha256 Property
The SHA-256 hash of the certificate.
Syntax
def get_ssl_cert_thumbprint_sha256() -> str: ...
ssl_cert_thumbprint_sha256 = property(get_ssl_cert_thumbprint_sha256, None)
Default Value
""
Remarks
The SHA-256 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.
This property is read-only.
ssl_cert_usage Property
The text description of UsageFlags .
Syntax
def get_ssl_cert_usage() -> str: ...
ssl_cert_usage = property(get_ssl_cert_usage, None)
Default Value
""
Remarks
The text description of ssl_cert_usage_flags.
This value will be one or more of the following strings and will be separated by commas:
- Digital Signature
- Non-Repudiation
- Key Encipherment
- Data Encipherment
- Key Agreement
- Certificate Signing
- CRL Signing
- Encipher Only
If the provider is OpenSSL, the value is a comma-separated list of X.509 certificate extension names.
This property is read-only.
ssl_cert_usage_flags Property
The flags that show intended use for the certificate.
Syntax
def get_ssl_cert_usage_flags() -> int: ...
ssl_cert_usage_flags = property(get_ssl_cert_usage_flags, None)
Default Value
0
Remarks
The flags that show intended use for the certificate. The value of ssl_cert_usage_flags is a combination of the following flags:
| 0x80 | Digital Signature |
| 0x40 | Non-Repudiation |
| 0x20 | Key Encipherment |
| 0x10 | Data Encipherment |
| 0x08 | Key Agreement |
| 0x04 | Certificate Signing |
| 0x02 | CRL Signing |
| 0x01 | Encipher Only |
Please see the ssl_cert_usage property for a text representation of ssl_cert_usage_flags.
This functionality currently is not available when the provider is OpenSSL.
This property is read-only.
ssl_cert_version Property
The certificate's version number.
Syntax
def get_ssl_cert_version() -> str: ...
ssl_cert_version = property(get_ssl_cert_version, None)
Default Value
""
Remarks
The certificate's version number. The possible values are the strings "V1", "V2", and "V3".
This property is read-only.
ssl_cert_subject Property
The subject of the certificate used for client authentication.
Syntax
def get_ssl_cert_subject() -> str: ... def set_ssl_cert_subject(value: str) -> None: ...
ssl_cert_subject = property(get_ssl_cert_subject, set_ssl_cert_subject)
Default Value
""
Remarks
The subject of the certificate used for client authentication.
This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject.
If a matching certificate is found, the property is set to the full subject of the matching certificate.
If an exact match is not found, the store is searched for subjects containing the value of the property.
If a match is still 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.
The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are as follows:
| Field | Meaning |
| CN | Common Name. This is commonly a hostname like www.server.com. |
| O | Organization |
| OU | Organizational Unit |
| L | Locality |
| S | State |
| C | Country |
| E | Email Address |
If a field value contains a comma, it must be quoted.
ssl_cert_encoded Property
The certificate (PEM/Base64 encoded).
Syntax
def get_ssl_cert_encoded() -> bytes: ... def set_ssl_cert_encoded(value: bytes) -> None: ...
ssl_cert_encoded = property(get_ssl_cert_encoded, set_ssl_cert_encoded)
Default Value
""
Remarks
The certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The ssl_cert_store and ssl_cert_subject properties also may be used to specify a certificate.
When ssl_cert_encoded is set, a search is initiated in the current ssl_cert_store for the private key of the certificate. If the key is found, ssl_cert_subject is updated to reflect the full subject of the selected certificate; otherwise, ssl_cert_subject is set to an empty string.
ssl_enabled Property
This property indicates whether Transport Layer Security/Secure Sockets Layer (TLS/SSL) is enabled.
Syntax
def get_ssl_enabled() -> bool: ... def set_ssl_enabled(value: bool) -> None: ...
ssl_enabled = property(get_ssl_enabled, set_ssl_enabled)
Default Value
FALSE
Remarks
This property specifies whether TLS/SSL is enabled in the class. When False (default), the class operates in plaintext mode. When True, TLS/SSL is enabled.
TLS/SSL may also be enabled by setting ssl_start_mode. Setting ssl_start_mode will automatically update this property value.
ssl_start_mode Property
This property determines how the class starts the Secure Sockets Layer (SSL) negotiation.
Syntax
def get_ssl_start_mode() -> int: ... def set_ssl_start_mode(value: int) -> None: ...
ssl_start_mode = property(get_ssl_start_mode, set_ssl_start_mode)
Default Value
3
Remarks
The ssl_start_mode property may have one of the following values:
| 0 (sslAutomatic) | If the remote port is set to the standard plaintext port of the protocol (where applicable), the class will behave the same as if ssl_start_mode is set to sslExplicit. In all other cases, SSL negotiation will be implicit (sslImplicit). |
| 1 (sslImplicit) | The SSL negotiation will start immediately after the connection is established. |
| 2 (sslExplicit) | The class will first connect in plaintext, and then will explicitly start SSL negotiation through a protocol command such as STARTTLS. |
| 3 (sslNone - default) | No SSL negotiation; no SSL security. All communication will be in plaintext mode. |
config Method
Sets or retrieves a configuration setting.
Syntax
def config(configuration_string: str) -> str: ...
Remarks
config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.
These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the config method.
To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).
To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.
disconnect Method
This method disconnects the specified client.
Syntax
def disconnect(connection_id: int) -> None: ...
Remarks
Calling this method will disconnect the client specified by the ConnectionId parameter.
do_events Method
This method processes events from the internal message queue.
Syntax
def do_events() -> None: ...
Remarks
When do_events is called, the class processes any available events. If no events are available, it waits for a preset period of time, and then returns.
reset Method
This method will reset the class.
Syntax
def reset() -> None: ...
Remarks
This method will reset the class's properties to their default values.
shutdown Method
This method shuts down the server.
Syntax
def shutdown() -> None: ...
Remarks
This method shuts down the server. Calling this method is equivalent to calling stop_listening and then breaking every client connection by calling disconnect.
start_listening Method
This method starts listening for incoming connections.
Syntax
def start_listening() -> None: ...
Remarks
This method begins listening for incoming connections on the port specified by local_port. Once listening, events will fire as new clients connect and data are transferred.
To stop listening for new connections, call stop_listening. To stop listening for new connections and to disconnect all existing clients, call shutdown.
stop_listening Method
This method stops listening for new connections.
Syntax
def stop_listening() -> None: ...
Remarks
This method stops listening for new connections. After being called, any new connection attempts will be rejected. Calling this method does not disconnect existing connections.
To stop listening and to disconnect all existing clients, call shutdown instead.
on_connected Event
This event is fired immediately after a connection completes (or fails).
Syntax
class AzureRelayProxyConnectedEventParams(object): @property def connection_id() -> int: ... @property def status_code() -> int: ... @property def description() -> str: ... # In class AzureRelayProxy: @property def on_connected() -> Callable[[AzureRelayProxyConnectedEventParams], None]: ... @on_connected.setter def on_connected(event_hook: Callable[[AzureRelayProxyConnectedEventParams], None]) -> None: ...
Remarks
If the connection is made normally, StatusCode is 0, and Description is "OK".
If the connection fails, StatusCode has the error code returned by the system. Description contains a description of this code. The value of StatusCode is equal to the value of the system error.
Please refer to the Error Codes section for more information.
on_connection_request Event
This event is fired when a request for connection comes from a remote host.
Syntax
class AzureRelayProxyConnectionRequestEventParams(object): @property def address() -> str: ... @property def port() -> int: ... @property def accept() -> bool: ... @accept.setter def accept(value) -> None: ... # In class AzureRelayProxy: @property def on_connection_request() -> Callable[[AzureRelayProxyConnectionRequestEventParams], None]: ... @on_connection_request.setter def on_connection_request(event_hook: Callable[[AzureRelayProxyConnectionRequestEventParams], None]) -> None: ...
Remarks
This event indicates an incoming connection. The connection is accepted by default. Address and Port will contain information about the remote host requesting the inbound connection. If you want to refuse it, you can set the Accept parameter to False.
on_disconnected Event
This event is fired when a connection is closed.
Syntax
class AzureRelayProxyDisconnectedEventParams(object): @property def connection_id() -> int: ... @property def status_code() -> int: ... @property def description() -> str: ... # In class AzureRelayProxy: @property def on_disconnected() -> Callable[[AzureRelayProxyDisconnectedEventParams], None]: ... @on_disconnected.setter def on_disconnected(event_hook: Callable[[AzureRelayProxyDisconnectedEventParams], None]) -> None: ...
Remarks
If the connection is broken normally, StatusCode is 0, and Description is "OK".
If the connection is broken for any other reason, StatusCode has the error code returned by the system. Description contains a description of this code. The value of StatusCode is equal to the value of the system error.
Please refer to the Error Codes section for more information.
on_error Event
This event fires information about errors during data delivery.
Syntax
class AzureRelayProxyErrorEventParams(object): @property def connection_id() -> int: ... @property def error_code() -> int: ... @property def description() -> str: ... # In class AzureRelayProxy: @property def on_error() -> Callable[[AzureRelayProxyErrorEventParams], None]: ... @on_error.setter def on_error(event_hook: Callable[[AzureRelayProxyErrorEventParams], None]) -> None: ...
Remarks
The on_error event is fired in case of exceptional conditions during message processing. Normally, the class fails with an error.
ErrorCode contains an error code and Description contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.
ConnectionId indicates the connection for which the error is applicable.
on_log Event
This event fires once for each log message.
Syntax
class AzureRelayProxyLogEventParams(object): @property def connection_id() -> int: ... @property def log_level() -> int: ... @property def message() -> str: ... @property def log_type() -> str: ... # In class AzureRelayProxy: @property def on_log() -> Callable[[AzureRelayProxyLogEventParams], None]: ... @on_log.setter def on_log(event_hook: Callable[[AzureRelayProxyLogEventParams], None]) -> None: ...
Remarks
This event fires once for each log message generated by the class. The verbosity is controlled by the LogLevel setting.
LogLevel indicates the level of message. Possible values are as follows:
| 0 (None) | No events are logged. |
| 1 (Info - default) | Informational events are logged. |
| 2 (Verbose) | Detailed data are logged. |
| 3 (Debug) | Debug data are logged. |
The value 1 (Info) logs basic information including the URL, HTTP version, and connection status details.
The value 2 (Verbose) logs additional information about the initial HTTP request.
The value 3 (Debug) logs additional debug information (if available).
Message is the log entry.
LogType identifies the type of log entry. Possible values are as follows:
- "Info"
- "Error"
- "Verbose"
- "Debug"
on_ssl_client_authentication Event
This event is fired when the client presents its credentials to the server.
Syntax
class AzureRelayProxySSLClientAuthenticationEventParams(object): @property def connection_id() -> int: ... @property def cert_encoded() -> bytes: ... @property def cert_subject() -> str: ... @property def cert_issuer() -> str: ... @property def status() -> str: ... @property def accept() -> bool: ... @accept.setter def accept(value) -> None: ... # In class AzureRelayProxy: @property def on_ssl_client_authentication() -> Callable[[AzureRelayProxySSLClientAuthenticationEventParams], None]: ... @on_ssl_client_authentication.setter def on_ssl_client_authentication(event_hook: Callable[[AzureRelayProxySSLClientAuthenticationEventParams], None]) -> None: ...
Remarks
This event enables the server to decide whether or not to continue. The Accept parameter is a recommendation on whether to continue or to close the connection. This is just a suggestion: application software must use its own logic to determine whether or not to continue.
When Accept is False, Status shows why the verification failed (otherwise, Status contains the string "OK").
on_ssl_connection_request Event
This event fires when a Secure Sockets Layer (SSL) connection is requested.
Syntax
class AzureRelayProxySSLConnectionRequestEventParams(object): @property def connection_id() -> int: ... @property def supported_cipher_suites() -> str: ... @property def supported_signature_algs() -> str: ... @property def cert_store_type() -> int: ... @cert_store_type.setter def cert_store_type(value) -> None: ... @property def cert_store() -> str: ... @cert_store.setter def cert_store(value) -> None: ... @property def cert_password() -> str: ... @cert_password.setter def cert_password(value) -> None: ... @property def cert_subject() -> str: ... @cert_subject.setter def cert_subject(value) -> None: ... # In class AzureRelayProxy: @property def on_ssl_connection_request() -> Callable[[AzureRelayProxySSLConnectionRequestEventParams], None]: ... @on_ssl_connection_request.setter def on_ssl_connection_request(event_hook: Callable[[AzureRelayProxySSLConnectionRequestEventParams], None]) -> None: ...
Remarks
This event fires when an SSL connection is requested and ssl_provider is set to Internal. This event provides an opportunity to select an alternative certificate to the connecting client. This event does not fire when ssl_provider is set to Platform.
This event allows the class to be configured to use both RSA and ECDSA certificates depending on the connecting client's capabilities.
ConnectionId is the connection Id of the client requesting the connection.
SupportedCipherSuites is a comma-separated list of cipher suites that the client supports.
SupportedSignatureAlgs is a comma-separated list of certificate signature algorithms that the client supports.
CertStoreType is the store type of the alternate certificate to use for this connection. The class supports both public and private keys in a variety of formats. When the cstAuto value is used, the class will automatically determine the type. This property 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 (PKCS#12) file containing certificates. |
| 3 (cstPFXBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) 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 PKCS#7 file containing certificates. |
| 12 (cstP7BBlob) | The certificate store is a string (binary) representing a certificate store in PKCS#7 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 PKCS#11 interface.
To use a security key, the necessary data must first be collected using the CertMgr class. The list_store_certificates method may be called after setting cert_store_type to cstPKCS11, cert_store_password to the PIN, and cert_store to the full path of the PKCS#11 DLL. The certificate information returned in the on_cert_list event's CertEncoded parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the and set to the PIN. Code Example. SSH Authentication with Security Key:
|
| 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. |
CertStore is the store name or location of the alternate certificate to use for this connection.
Designations of certificate stores are platform dependent.
The following designations are 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. |
When the certificate store type is cstPFXFile, this property must be set to the name of the file. When the type is cstPFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).
CertPassword is the password of the certificate store containing the alternate certificate to use for this connection.
CertSubject is the subject of the alternate certificate to use for this connection.
The special value * matches any subject and will select the first certificate in the store. The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are as follows:
| Field | Meaning |
| CN | Common Name. This is commonly a hostname like www.server.com. |
| O | Organization |
| OU | Organizational Unit |
| L | Locality |
| S | State |
| C | Country |
| E | Email Address |
If a field value contains a comma, it must be quoted.
on_ssl_status Event
This event is fired to show the progress of the secure connection.
Syntax
class AzureRelayProxySSLStatusEventParams(object): @property def connection_id() -> int: ... @property def message() -> str: ... # In class AzureRelayProxy: @property def on_ssl_status() -> Callable[[AzureRelayProxySSLStatusEventParams], None]: ... @on_ssl_status.setter def on_ssl_status(event_hook: Callable[[AzureRelayProxySSLStatusEventParams], None]) -> None: ...
Remarks
The event is fired for informational and logging purposes only. It is used to track the progress of the connection.
AzureRelayProxy Config Settings
The class 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 class, access to these internal properties is provided through the config method.AzureRelayProxy Config Settings
The value will be in the format:
SharedAccessSignature sr=sb%3a%2f%2fnstest.servicebus.windows.net%2fhc1&sig=a2EjYWw%2fDlg%2bPcNb%2fC7%2fxBbM11JjfgdO6ZVsQRm18Gg%3d&se=1555368805&skn=RootManageSharedAccessKey
| 0 (None) | No events are logged. |
| 1 (Info - default) | Informational events are logged. |
| 2 (Verbose) | Detailed data is logged. |
| 3 (Debug) | Debug data is logged. |
The value 1 (Info) logs basic information about the connection and connecting clients.
The value 2 (Verbose) logs detailed information about each connection and the control connection.
The value 3 (Debug) logs additional debug information (if any).
HTTP Config Settings
When True, the class adds an Accept-Encoding header to the outgoing request. The value for this header can be controlled by the AcceptEncoding configuration setting. The default value for this header is "gzip, deflate".
The default value is True.
If set to True (default), the class will automatically use HTTP/1.1 if the server does not support HTTP/2. If set to False, the class fails with an error if the server does not support HTTP/2.
The default value is True.
This property is provided so that the HTTP class can be extended with other security schemes in addition to the authorization schemes already implemented by the class.
The auth_scheme property defines the authentication scheme used. In the case of HTTP Basic Authentication (default), every time user and password are set, they are Base64 encoded, and the result is put in the authorization property in the form "Basic [encoded-user-password]".
The default value is False.
If this property is set to 2 (Same Scheme), the new url is retrieved automatically only if the URL Scheme is the same; otherwise, the class fails with an error.
Note: Following the HTTP specification, unless this option is set to 1 (Always), automatic redirects will be performed only for GET or HEAD requests. Other methods potentially could change the conditions of the initial request and create security vulnerabilities.
Furthermore, if either the new URL server or port are different from the existing one, user and password are also reset to empty, unless this property is set to 1 (Always), in which case the same credentials are used to connect to the new server.
A on_redirect event is fired for every URL the product is redirected to. In the case of automatic redirections, the on_redirect event is a good place to set properties related to the new connection (e.g., new authentication parameters).
The default value is 0 (Never). In this case, redirects are never followed, and the class fails with an error instead.
Following are the valid options:
- 0 - Never
- 1 - Always
- 2 - Same Scheme
- "1.0"
- "1.1" (default)
- "2.0"
- "3.0"
When using HTTP/2 ("2.0"), additional restrictions apply. Please see the following notes for details.
HTTP/2 Notes
When using HTTP/2, a secure Secure Sockets Layer/Transport Layer Security (TLS/SSL) connection is required. Attempting to use a plaintext URL with HTTP/2 will result in an error.
If the server does not support HTTP/2, the class will automatically use HTTP/1.1 instead. This is done to provide compatibility without the need for any additional settings. To see which version was used, check NegotiatedHTTPVersion after calling a method. The AllowHTTPFallback setting controls whether this behavior is allowed (default) or disallowed.
HTTP/3 Notes
HTTP/3 is supported only in .NET and Java.
When using HTTP/3, a secure (TLS/SSL) connection is required. Attempting to use a plaintext URL with HTTP/3 will result in an error.
The format of the date value for IfModifiedSince is detailed in the HTTP specs. For example:
Sat, 29 Oct 2017 19:43:31 GMT.
The default value for KeepAlive is False.
| 0 (None) | No events are logged. |
| 1 (Info - default) | Informational events are logged. |
| 2 (Verbose) | Detailed data are logged. |
| 3 (Debug) | Debug data are logged. |
The value 1 (Info) logs basic information, including the URL, HTTP version, and status details.
The value 2 (Verbose) logs additional information about the request and response.
The value 3 (Debug) logs the headers and body for both the request and response, as well as additional debug information (if any).
The headers must follow the format "header: value" as described in the HTTP specifications. Header lines should be separated by CRLF ("\r\n") .
Use this configuration setting with caution. If this configuration setting contains invalid headers, HTTP requests may fail.
This configuration setting is useful for extending the functionality of the class beyond what is provided.
.NET
Http http = new Http();
http.Config("TransferredRequest=on");
http.PostData = "body";
http.Post("http://someserver.com");
Console.WriteLine(http.Config("TransferredRequest"));
C++
HTTP http;
http.Config("TransferredRequest=on");
http.SetPostData("body", 5);
http.Post("http://someserver.com");
printf("%s\r\n", http.Config("TransferredRequest"));
Note: Some servers (such as the ASP.NET Development Server) may not support chunked encoding.
The default value is False and the hostname will always be used exactly as specified. Note: The CodePage setting must be set to a value capable of interpreting the specified host name. For instance, to specify UTF-8, set CodePage to 65001. In the C++ Edition for Windows, the *W version of the class must be used. For instance, DNSW or HTTPW.
Note: This setting is applicable only to Mac/iOS editions.
When True (default), the class will check for the existence of a Proxy auto-config URL, and if found, will determine the appropriate proxy to use.
Override the default with the name and version of your software.
TCPClient Config Settings
If the FirewallHost setting is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, the FirewallHost setting is set to the corresponding address. If the search is not successful, an error is returned.
Note: This setting is provided for use by classs that do not directly expose Firewall properties.
Note: This setting is provided for use by classs that do not directly expose Firewall properties.
Note: This configuration setting is provided for use by classs that do not directly expose Firewall properties.
| 0 | No firewall (default setting). |
| 1 | Connect through a tunneling proxy. FirewallPort is set to 80. |
| 2 | Connect through a SOCKS4 Proxy. FirewallPort is set to 1080. |
| 3 | Connect through a SOCKS5 Proxy. FirewallPort is set to 1080. |
| 10 | Connect through a SOCKS4A Proxy. FirewallPort is set to 1080. |
Note: This setting is provided for use by classs that do not directly expose Firewall properties.
Note: This setting is provided for use by classs that do not directly expose Firewall properties.
Note: This value is not applicable in macOS.
In the case that Linger is True (default), two scenarios determine how long the connection will linger. In the first, if LingerTime is 0 (default), the system will attempt to send pending data for a connection until the default IP timeout expires.
In the second scenario, if LingerTime is a positive value, the system will attempt to send pending data until the specified LingerTime is reached. If this attempt fails, then the system will reset the connection.
The default behavior (which is also the default mode for stream sockets) might result in a long delay in closing the connection. Although the class returns control immediately, the system could hold system resources until all pending data are sent (even after your application closes).
Setting this property to False forces an immediate disconnection. If you know that the other side has received all the data you sent (e.g., by a client acknowledgment), setting this property to False might be the appropriate course of action.
In multihomed hosts (machines with more than one IP interface), setting LocalHost to the value of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface.
If the class is connected, the local_host setting 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).
Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by local_port after the connection is established.
local_port cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error.
This configuration setting is useful when trying to connect to services that require a trusted port on the client side. An example is the remote shell (rsh) service in UNIX systems.
If an eol string is found in the input stream before MaxLineLength bytes are received, the on_data_in event is fired with the EOL parameter set to True, and the buffer is reset.
If no eol is found, and MaxLineLength bytes are accumulated in the buffer, the on_data_in event is fired with the EOL parameter set to False, and the buffer is reset.
The minimum value for MaxLineLength is 256 bytes. The default value is 2048 bytes.
www.google.com;www.nsoftware.com
Note: This value is not applicable in Java.
By default, this configuration setting is set to False.
| 0 | IPv4 only |
| 1 | IPv6 only |
| 2 | IPv6 with IPv4 fallback |
SSL Config Settings
When enabled, SSL packet logs are output using the on_ssl_status event, which will fire each time an SSL packet is sent or received.
Enabling this configuration setting has no effect if ssl_provider is set to Platform.
The path set by this property should point to a directory containing CA certificates in PEM format. The files each contain one CA certificate. The files are looked up by the CA subject name hash value, which must hence be available. If more than one CA certificate with the same name hash value exist, the extension must be different (e.g., 9d66eef0.0, 9d66eef0.1). OpenSSL recommends the use of the c_rehash utility to create the necessary links. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.
The file set by this property should contain a list of CA certificates in PEM format. The file can contain several CA certificates identified by the following sequences:
-----BEGIN CERTIFICATE-----
... (CA certificate in base64 encoding) ...
-----END CERTIFICATE-----
Before, between, and after the certificate text is allowed, which can be used, for example, for descriptions of the certificates. Refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.
The format of this string is described in the OpenSSL man page ciphers(1) section "CIPHER LIST FORMAT". Please refer to it for details. The default string "DEFAULT" is determined at compile time and is normally equivalent to "ALL:!ADH:RC4+RSA:+SSLv2:@STRENGTH".
By default, OpenSSL uses the device file "/dev/urandom" to seed the PRNG, and setting OpenSSLPrngSeedData is not required. If set, the string specified is used to seed the PRNG.
If set to True, the class 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 class is the same.
The value is formatted as a list of paths separated by semicolons. The class will check for the existence of each file in the order specified. When a file is found, the CA certificates within the file will be loaded and used to determine the validity of server or client certificates.
The default value is as follows:
/etc/ssl/ca-bundle.pem;/etc/pki/tls/certs/ca-bundle.crt;/etc/ssl/certs/ca-certificates.crt;/etc/pki/tls/cacert.pem
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... Intermediate Cert ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp ... Root Cert ... d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
When set to 0 (default), the CRL check will not be performed by the class. When set to 1, it will attempt to perform the CRL check, but it will continue without an error if the server's certificate does not support CRL. When set to 2, it will perform the CRL check and will throw an error if CRL is not supported.
This configuration setting is supported only in the Java, C#, and C++ editions. In the C++ edition, it is supported only on Windows operating systems.
When set to 0 (default), the class will not perform an OCSP check. When set to 1, it will attempt to perform the OCSP check, but it will continue without an error if the server's certificate does not support OCSP. When set to 2, it will perform the OCSP check and will throw an error if OCSP is not supported.
This configuration setting is supported only in the Java, C#, and C++ editions. In the C++ edition, it is supported only on Windows operating systems.
Note: This configuration setting contains the minimum cipher strength requested from the security library. The actual cipher strength used for the connection is shown by the on_ssl_status event.
Use this configuration setting with caution. Requesting a lower cipher strength than necessary could potentially cause serious security vulnerabilities in your application.
When the provider is OpenSSL, SSLCipherStrength is currently not supported. This functionality is instead made available through the OpenSSLCipherList configuration setting.
The value of this configuration setting is a newline-separated (CR/LF) list of certificates. For instance:
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... Intermediate Cert ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp ... Root Cert ... d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
By default, the enabled cipher suites will include all available ciphers ("*").
The special value "*" means that the class 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 ssl_provider is set to Platform include the following:
obj.config("SSLEnabledCipherSuites=*");
obj.config("SSLEnabledCipherSuites=CALG_AES_256");
obj.config("SSLEnabledCipherSuites=CALG_AES_256;CALG_3DES");
Possible values when ssl_provider is set to Platform include the following:
- 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
obj.config("SSLEnabledCipherSuites=*");
obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA");
obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA;TLS_ECDH_RSA_WITH_AES_128_CBC_SHA");
Possible values when ssl_provider is set to Internal include the following:
- TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_RSA_WITH_AES_256_GCM_SHA384
- TLS_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
- TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- TLS_DHE_DSS_WITH_AES_256_CBC_SHA
- TLS_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
- TLS_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_RSA_WITH_DES_CBC_SHA
- TLS_DHE_RSA_WITH_DES_CBC_SHA
- TLS_DHE_DSS_WITH_DES_CBC_SHA
- TLS_RSA_WITH_RC4_128_MD5
- TLS_RSA_WITH_RC4_128_SHA
When TLS 1.3 is negotiated (see SSLEnabledProtocols), only the following cipher suites are supported:
- TLS_AES_256_GCM_SHA384
- TLS_CHACHA20_POLY1305_SHA256
- TLS_AES_128_GCM_SHA256
SSLEnabledCipherSuites is used together with SSLCipherStrength.
Not all supported protocols are enabled by default. The default value is 4032 for client components, and 3072 for server components. To specify a combination of enabled protocol versions set this config to the binary OR of one or more of the following values:
| TLS1.3 | 12288 (Hex 3000) |
| TLS1.2 | 3072 (Hex C00) (Default - Client and Server) |
| TLS1.1 | 768 (Hex 300) (Default - Client) |
| TLS1 | 192 (Hex C0) (Default - Client) |
| SSL3 | 48 (Hex 30) |
| SSL2 | 12 (Hex 0C) |
Note that only TLS 1.2 is enabled for server components that accept incoming connections. This adheres to industry standards to ensure a secure connection. Client components enable TLS 1.0, TLS 1.1, and TLS 1.2 by default and will negotiate the highest mutually supported version when connecting to a server, which should be TLS 1.2 in most cases.
SSLEnabledProtocols: Transport Layer Security (TLS) 1.3 Notes:
By default when TLS 1.3 is enabled, the class will use the internal TLS implementation when the ssl_provider is set to Automatic for all editions.
In editions that are designed to run on Windows, ssl_provider can be set to Platform to use the platform implementation instead of the internal implementation. When configured in this manner, please note that the platform provider is supported only on Windows 11/Windows Server 2022 and up. The default internal provider is available on all platforms and is not restricted to any specific OS version.
If set to 1 (Platform provider), please be aware of the following notes:
- The platform provider is available only on Windows 11/Windows Server 2022 and up.
- SSLEnabledCipherSuites and other similar SSL configuration settings are not supported.
- If SSLEnabledProtocols includes both TLS 1.3 and TLS 1.2, these restrictions are still applicable even if TLS 1.2 is negotiated. Enabling TLS 1.3 with the platform provider changes the implementation used for all TLS versions.
SSLEnabledProtocols: SSL2 and SSL3 Notes:
SSL 2.0 and 3.0 are not supported by the class when the ssl_provider is set to internal. To use SSL 2.0 or SSL 3.0, the platform security API must have the protocols enabled and ssl_provider needs to be set to platform.
This configuration setting is applicable only when ssl_provider is set to Internal.
If set to True, all certificates returned by the server will be present in the Encoded parameter of the on_ssl_server_authentication event. This includes the leaf certificate, any intermediate certificate, and the root certificate.
When set, the class will save the session secrets in the same format as the SSLKEYLOGFILE environment variable functionality used by most major browsers and tools, such as Chrome, Firefox, and cURL. This file can then be used in tools such as Wireshark to decrypt TLS traffic for debugging purposes. When writing to this file, the class will only append, it will not overwrite previous values.
Note: This configuration setting is applicable only when ssl_provider is set to Internal.
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipher[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherStrength[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherSuite[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchange[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchangeStrength[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedVersion[connId]");
| 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 non-matching server name). |
This functionality is currently not available when the provider is OpenSSL.
The value of this configuration setting is a newline-separated (CR/LF) list of certificates. For instance:
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... Intermediate Cert... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp ... Root Cert... d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
When specified the class will verify that the server certificate signature algorithm is among the values specified in this configuration setting. If the server certificate signature algorithm is unsupported, the class fails with an error.
The format of this value is a comma-separated list of hash-signature combinations. For instance:
component.SSLProvider = TCPClientSSLProviders.sslpInternal;
component.Config("SSLEnabledProtocols=3072"); //TLS 1.2
component.Config("TLS12SignatureAlgorithms=sha256-rsa,sha256-dsa,sha1-rsa,sha1-dsa");
The default value for this configuration setting is sha512-ecdsa,sha512-rsa,sha512-dsa,sha384-ecdsa,sha384-rsa,sha384-dsa,sha256-ecdsa,sha256-rsa,sha256-dsa,sha224-ecdsa,sha224-rsa,sha224-dsa,sha1-ecdsa,sha1-rsa,sha1-dsa.
To not restrict the server's certificate signature algorithm, specify an empty string as the value for this configuration setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.
The default value is ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1.
When using TLS 1.2 and ssl_provider is set to Internal, the values refer to the supported groups for ECC. The following values are supported:
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1" (default)
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 configuration setting.
Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used that is not present in this list, it will incur an additional roundtrip and time to generate the key share for that group.
In most cases, this configuration setting does not need to be modified. This should be modified only 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"
- "ed25519" (default)
- "ed448" (default)
- "ecdsa_secp256r1_sha256" (default)
- "ecdsa_secp384r1_sha384" (default)
- "ecdsa_secp521r1_sha512" (default)
- "rsa_pkcs1_sha256" (default)
- "rsa_pkcs1_sha384" (default)
- "rsa_pkcs1_sha512" (default)
- "rsa_pss_sha256" (default)
- "rsa_pss_sha384" (default)
- "rsa_pss_sha512" (default)
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)
Socket Config Settings
Note: This option is not valid for User Datagram Protocol (UDP) ports.
Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.
Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.
AzureRelayProxy Errors
AzureRelayProxy Errors
| 4001 | Error transmitting packet. |
| 4002 | Error sending CLOSE packet. |
| 4003 | General protocol error. |