HTTP Class
Properties Methods Events Config Settings Errors
The HTTP Class can be used to retrieve documents from the World Wide Web.
Syntax
class ipworks.HTTP
Remarks
The HTTP Class supports both plaintext and Secure Sockets Layer/Transport Layer Security (SSL/TLS) connections. When connecting over SSL/TLS the on_ssl_server_authentication event allows you to check the server identity and other security attributes. The on_ssl_status event provides information about the SSL handshake. Additional SSL related settings are also supported via the config method.
The HTTP Class implements a standard HTTP client through a simple plug-and-play interface as defined in RFC 1945 and RFC 2616 with the added option of SSL security.
The class contains a number of properties that map directly to HTTP request headers. Files are received through two events: (1) on_transfer for content, and (2) on_header for HTTP headers. The on_start_transfer and on_end_transfer events are fired at the beginning and end of transmission.
To receive a document, call the get method with the URL parameter. Data can be POST-ed to the HTTP server by assigning it to the post_data property and then calling the post method.
The PUT method is also supported. You should specify the user and password properties or alternatively the Authorization and call the put method with the specified URL. The attached_file will be sent to the server.
The HTTP Class supports the HTTP Basic authentication scheme through the user and password properties. Other authentication schemes can be implemented by using the auth_scheme property.
Property List
The following is the full list of the properties of the class with short descriptions. Click on the links for further details.
accept | This property includes a list of acceptable MIME types for the request. |
allow_http_compression | This property enables HTTP compression for receiving data. |
attached_file | This property includes a file to append to PostData if the POST or PUT methods are used. |
authorization | This property includes the Authorization string to be sent to the server. |
auth_scheme | The authentication scheme to use when server authentication is required. |
connected | This shows whether the class is connected. |
content_type | This property includes the content type for posts and puts. |
cookie_count | The number of records in the Cookie arrays. |
cookie_domain | This is the domain of a received cookie. |
cookie_expiration | This property contains an expiration time for the cookie (if provided by the server). |
cookie_name | This property, contains the name of the cookie. |
cookie_path | This property contains a path name to limit the cookie to (if provided by the server). |
cookie_secure | This property contains the security flag of the received cookie. |
cookie_value | This property contains the value of the cookie. |
firewall_auto_detect | This property tells the class whether or not to automatically detect and use firewall system settings, if available. |
firewall_type | This property determines the type of firewall to connect through. |
firewall_host | This property contains the name or IP address of firewall (optional). |
firewall_password | This property contains a password if authentication is to be used when connecting through the firewall. |
firewall_port | This property contains the transmission control protocol (TCP) port for the firewall Host . |
firewall_user | This property contains a user name if authentication is to be used connecting through a firewall. |
follow_redirects | This property determines what happens when the server issues a redirect. |
from_ | This property includes the email address of the HTTP agent (optional). |
http_method | This property includes the HTTP method used for the request. |
http_version | This property includes the HTTP Version used by the class. |
idle | The current status of the class. |
if_modified_since | This property includes a date determining the maximum age of the desired document. |
local_file | This property includes the path to a local file for downloading. If the file exists, it is overwritten. |
local_host | The name of the local host or user-assigned IP interface through which connections are initiated or accepted. |
other_headers | This property includes other headers as determined by the user (optional). |
parsed_header_count | The number of records in the ParsedHeader arrays. |
parsed_header_field | This property contains the name of the HTTP header (this is the same case as it is delivered). |
parsed_header_value | This property contains the header contents. |
password | This property includes a password if authentication is to be used. |
post_data | This property includes the data to post with the URL if the POST method is used. |
pragma | This property includes a browser- or server-specific header line (optional). |
proxy_auth_scheme | This property is used to tell the class which type of authorization to perform when connecting to the proxy. |
proxy_auto_detect | This property tells the class whether or not to automatically detect and use proxy system settings, if available. |
proxy_password | This property contains a password if authentication is to be used for the proxy. |
proxy_port | This property contains the Transmission Control Protocol (TCP) port for the proxy Server (default 80). |
proxy_server | If a proxy Server is given, then the HTTP request is sent to the proxy instead of the server otherwise specified. |
proxy_ssl | This property determines when to use a Secure Sockets Layer (SSL) for the connection to the proxy. |
proxy_user | This property contains a username if authentication is to be used for the proxy. |
range | This property includes the byte-range to be sent to the server. |
referer | This property includes the referer URL/document (optional). |
ssl_accept_server_cert_encoded | This is the certificate (PEM/Base64 encoded). |
ssl_cert_encoded | This is the certificate (PEM/Base64 encoded). |
ssl_cert_store | This is 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 | This is the type of certificate store for this certificate. |
ssl_cert_subject | This is the subject of the certificate used for client authentication. |
ssl_provider | This specifies the SSL/TLS implementation to use. |
ssl_server_cert_encoded | This is the certificate (PEM/Base64 encoded). |
status_line | This property is the first line of the last server response. |
timeout | A timeout for the class. |
transferred_data | This property includes the contents of the last response from the server. |
transferred_data_limit | This property specifies the the maximum amount of data to be transferred. |
transferred_headers | This property includes the full set of headers as received from the server. |
url | This property specifies the URL to fetch. |
url_path | This property specifies the path for the URL. |
url_port | This property specifies the port for the URL. |
url_scheme | This property includes the scheme for the URL. |
url_server | This property specifies the server for the URL. |
user | This property includes a user name if authentication is to be used. |
Method List
The following is the full list of the methods of the class with short descriptions. Click on the links for further details.
add_cookie | This method adds a cookie and the corresponding value to the outgoing request headers. |
calc_authorization | This method calculates the Authorization header based on provided credentials. |
config | Sets or retrieves a configuration setting. |
connect | This method connects to the remote host without performing any action. |
delete | This method deletes an object on the server. |
disconnect | This method disconnects from the server. |
do_events | Processes events from the internal message queue. |
get | This fetches the document using the HTTP GET method. |
head | This fetches the document headers using the HTTP HEAD method. |
interrupt | Interrupt the current method. |
post | This method posts data to the HTTP server using the HTTP POST method. |
put | This method sends data to the HTTP server using the HTTP PUT method. |
reset | Reset the class. |
reset_headers | This method resets all HTTP headers, cookies, LocalFile , and AttachedFile . |
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_status | This event is fired to indicate changes in the connection state. |
on_disconnected | This event is fired when a connection is closed. |
on_end_transfer | This event is fired when a document finishes transferring. |
on_error | Fired when information is available about errors during data delivery. |
on_header | This event is fired every time a header line comes in. |
on_log | This event fires once for each log message. |
on_redirect | This event is fired when a redirection is received from the server. |
on_set_cookie | This event is fired for every cookie set by the server. |
on_ssl_server_authentication | Fired after the server presents its certificate to the client. |
on_ssl_status | Fired when secure connection progress messages are available. |
on_start_transfer | This event is fired when a document starts transferring (after the headers). |
on_status | This event is fired when the HTTP status line is received from the server. |
on_transfer | This event is fired while a document transfers (delivers document). |
Config Settings
The following is a list of config settings for the class with short descriptions. Click on the links for further details.
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 certificate to use during SSL client authentication. |
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. |
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 certificate 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. |
BuildInfo | Information about the product's build. |
CodePage | The system code page used for Unicode to Multibyte translations. |
LicenseInfo | Information about the current license. |
MaskSensitive | Whether sensitive data is masked in log messages. |
ProcessIdleEvents | Whether the class uses its internal event loop to process events when the main thread is idle. |
SelectWaitMillis | The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process. |
UseInternalSecurityAPI | Whether or not to use the system security libraries or an internal implementation. |
accept Property
This property includes a list of acceptable MIME types for the request.
Syntax
def get_accept() -> str: ... def set_accept(value: str) -> None: ...
accept = property(get_accept, set_accept)
Default Value
""
Remarks
If this property contains a nonempty string, an HTTP Accept header is added to the request.
The Accept header is used for content negotiation. It provides the server with a comma-separated list of MIME types that are acceptable for its response.
allow_http_compression Property
This property enables HTTP compression for receiving data.
Syntax
def get_allow_http_compression() -> bool: ... def set_allow_http_compression(value: bool) -> None: ...
allow_http_compression = property(get_allow_http_compression, set_allow_http_compression)
Default Value
TRUE
Remarks
This property enables HTTP compression for receiving data. When set to True, the class will accept compressed data. It will then uncompress the data it has received. The class will handle data compressed by both gzip and Deflate compression algorithms.
When True, the class adds an "Accept-Encoding" header to the outgoing request. The value for this header can be controlled by the AcceptEncoding config. The default value for this header is "gzip, deflate".
transferred_data will contain the decompressed data received by the server, but the on_transfer event will report exactly what is received by the server (compressed data).
attached_file Property
This property includes a file to append to PostData if the POST or PUT methods are used.
Syntax
def get_attached_file() -> str: ... def set_attached_file(value: str) -> None: ...
attached_file = property(get_attached_file, set_attached_file)
Default Value
""
Remarks
If this property contains a nonempty string, then if the HTTP POST or PUT methods are used (through the post or put methods), the contents of this property are appended to the HTTP request after any data in post_data.
An HTTP Content-Length header is also added to request. Its value is the cumulative length of the post_data string and the file.
If data are being uploaded to a web service the WebUpload class is recommended because it will automatically encode file and form variables. Alternatively, the MIME class may be used to construct the raw MIME entity, which may be sent by this property.
authorization Property
This property includes the Authorization string to be sent to the server.
Syntax
def get_authorization() -> str: ... def set_authorization(value: str) -> None: ...
authorization = property(get_authorization, set_authorization)
Default Value
""
Remarks
If the authorization property contains a nonempty string, an Authorization HTTP request header is added to the request. This header conveys Authorization information to the server.
A common use for this property is to specify OAuth authorization string.
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]".
auth_scheme Property
The authentication scheme to use when server authentication is required.
Syntax
def get_auth_scheme() -> int: ... def set_auth_scheme(value: int) -> None: ...
auth_scheme = property(get_auth_scheme, set_auth_scheme)
Default Value
0
Remarks
This property will tell the class which type of authorization to perform when the user and password properties are set.
This property should be set to authNone (3) when no authentication is to be performed.
By default, this property is authBasic (0), and if the user and password properties are set, the class will attempt HTTP Basic Authentication. If auth_scheme is set to authDigest (1), authNtlm (4), or authNegotiate (5), then Digest, NTLM, or Windows Negotiate (Kerberos) authentication will be attempted instead.
If auth_scheme is set to authProprietary (2), then the authorization token must be supplied through the authorization property.
If auth_scheme is set to authOAuth (6), then the authorization string must be supplied through the authorization property.
Note: If you set the authorization property and auth_scheme is not authProprietary or authOAuth, then the auth_scheme will be set automatically to authProprietary (2) by the class.
For security, changing the value of this property will cause the class to clear the values of user, password, and Authorization.
connected Property
This shows whether the class is connected.
Syntax
def get_connected() -> bool: ... def set_connected(value: bool) -> None: ...
connected = property(get_connected, set_connected)
Default Value
FALSE
Remarks
This property is used to determine whether or not the class is connected to the remote host.
Note: It is recommended to use the connect or disconnect method instead of setting this property.
content_type Property
This property includes the content type for posts and puts.
Syntax
def get_content_type() -> str: ... def set_content_type(value: str) -> None: ...
content_type = property(get_content_type, set_content_type)
Default Value
""
Remarks
If this property contains a nonempty string, a Content-Type HTTP request header is added to the request. The purpose of the header is to show the contents of the data during a post or put to the server.
The most common example is posting of HTML form input data. In that case, this property must be set to "application/x-www-form-urlencoded".
cookie_count Property
The number of records in the Cookie arrays.
Syntax
def get_cookie_count() -> int: ... def set_cookie_count(value: int) -> None: ...
cookie_count = property(get_cookie_count, set_cookie_count)
Default Value
0
Remarks
This property controls the size of the following arrays:
The array indices start at 0 and end at cookie_count - 1.cookie_domain Property
This is the domain of a received cookie.
Syntax
def get_cookie_domain(cookie_index: int) -> str: ...
Default Value
""
Remarks
This is the domain of a received cookie. This property contains a domain name to limit the cookie to (if provided by the server). If the server does not provide a domain name, this property will contain an empty string. The convention in this case is to use the server name specified by url_server as the cookie domain.
The cookie_index parameter specifies the index of the item in the array. The size of the array is controlled by the cookie_count property.
This property is read-only.
cookie_expiration Property
This property contains an expiration time for the cookie (if provided by the server).
Syntax
def get_cookie_expiration(cookie_index: int) -> str: ...
Default Value
""
Remarks
This property contains an expiration time for the cookie (if provided by the server). The time format used is "Weekday, DD-Mon-YY HH:MM:SS GMT". If the server does not provide an expiration time, this property will contain an empty string. The convention is to drop the cookie at the end of the session.
The cookie_index parameter specifies the index of the item in the array. The size of the array is controlled by the cookie_count property.
This property is read-only.
cookie_name Property
This property, contains the name of the cookie.
Syntax
def get_cookie_name(cookie_index: int) -> str: ... def set_cookie_name(cookie_index: int, value: str) -> None: ...
Default Value
""
Remarks
This property, contains the name of the cookie.
This property, along with cookie_value, stores the cookie that is to be sent to the server. The on_set_cookie event displays the cookies sent by the server and their properties.
The cookie_index parameter specifies the index of the item in the array. The size of the array is controlled by the cookie_count property.
cookie_path Property
This property contains a path name to limit the cookie to (if provided by the server).
Syntax
def get_cookie_path(cookie_index: int) -> str: ...
Default Value
""
Remarks
This property contains a path name to limit the cookie to (if provided by the server). If the server does not provide a cookie path, the path property will be an empty string. The convention in this case is to use the path specified by url_path as the cookie path.
The cookie_index parameter specifies the index of the item in the array. The size of the array is controlled by the cookie_count property.
This property is read-only.
cookie_secure Property
This property contains the security flag of the received cookie.
Syntax
def get_cookie_secure(cookie_index: int) -> bool: ...
Default Value
FALSE
Remarks
This property contains the security flag of the received cookie. This property specifies whether the cookie is secure. If the value of this property is True, the cookie value must be submitted only through a secure (HTTPS) connection.
The cookie_index parameter specifies the index of the item in the array. The size of the array is controlled by the cookie_count property.
This property is read-only.
cookie_value Property
This property contains the value of the cookie.
Syntax
def get_cookie_value(cookie_index: int) -> str: ... def set_cookie_value(cookie_index: int, value: str) -> None: ...
Default Value
""
Remarks
This property contains the value of the cookie. A corresponding value is associated with the cookie specified by cookie_name. This property holds that value.
The on_set_cookie event provides the cookies set by the server.
The cookie_index parameter specifies the index of the item in the array. The size of the array is controlled by the cookie_count property.
firewall_auto_detect Property
This property tells the class whether or not to automatically detect and use firewall system settings, if available.
Syntax
def get_firewall_auto_detect() -> bool: ... def set_firewall_auto_detect(value: bool) -> None: ...
firewall_auto_detect = property(get_firewall_auto_detect, set_firewall_auto_detect)
Default Value
FALSE
Remarks
This property tells the class whether or not to automatically detect and use firewall system settings, if available.
firewall_type Property
This property determines the type of firewall to connect through.
Syntax
def get_firewall_type() -> int: ... def set_firewall_type(value: int) -> None: ...
firewall_type = property(get_firewall_type, set_firewall_type)
Default Value
0
Remarks
This property determines the type of firewall to connect through. The applicable values are as follows:
fwNone (0) | No firewall (default setting). |
fwTunnel (1) | Connect through a tunneling proxy. firewall_port is set to 80. |
fwSOCKS4 (2) | Connect through a SOCKS4 Proxy. firewall_port is set to 1080. |
fwSOCKS5 (3) | Connect through a SOCKS5 Proxy. firewall_port is set to 1080. |
fwSOCKS4A (10) | Connect through a SOCKS4A Proxy. firewall_port is set to 1080. |
firewall_host Property
This property contains the name or IP address of firewall (optional).
Syntax
def get_firewall_host() -> str: ... def set_firewall_host(value: str) -> None: ...
firewall_host = property(get_firewall_host, set_firewall_host)
Default Value
""
Remarks
This property contains the name or IP address of firewall (optional). If a firewall_host is given, the requested connections will be authenticated through the specified firewall when connecting.
If this property is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, the class fails with an error.
firewall_password Property
This property contains a password if authentication is to be used when connecting through the firewall.
Syntax
def get_firewall_password() -> str: ... def set_firewall_password(value: str) -> None: ...
firewall_password = property(get_firewall_password, set_firewall_password)
Default Value
""
Remarks
This property contains a password if authentication is to be used when connecting through the firewall. If firewall_host is specified, the firewall_user and firewall_password properties are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error.
firewall_port Property
This property contains the transmission control protocol (TCP) port for the firewall Host .
Syntax
def get_firewall_port() -> int: ... def set_firewall_port(value: int) -> None: ...
firewall_port = property(get_firewall_port, set_firewall_port)
Default Value
0
Remarks
This property contains the transmission control protocol (TCP) port for the firewall firewall_host. See the description of the firewall_host property for details.
Note: This property is set automatically when firewall_type is set to a valid value. See the description of the firewall_type property for details.
firewall_user Property
This property contains a user name if authentication is to be used connecting through a firewall.
Syntax
def get_firewall_user() -> str: ... def set_firewall_user(value: str) -> None: ...
firewall_user = property(get_firewall_user, set_firewall_user)
Default Value
""
Remarks
This property contains a user name if authentication is to be used connecting through a firewall. If the firewall_host is specified, this property and firewall_password properties are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error.
follow_redirects Property
This property determines what happens when the server issues a redirect.
Syntax
def get_follow_redirects() -> int: ... def set_follow_redirects(value: int) -> None: ...
follow_redirects = property(get_follow_redirects, set_follow_redirects)
Default Value
0
Remarks
This property determines what happens when the server issues a redirect. Normally, the class returns an error if the server responds with an "Object Moved" message. If this property is set to frAlways (1), the new url for the object is retrieved automatically every time.
If this property is set to frSameScheme (2), 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 property is set to frAlways (1), 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. If, however, this property is set to frAlways (1), 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 frNever (0). In this case, redirects are never followed, and the class fails with an error instead.
from_ Property
This property includes the email address of the HTTP agent (optional).
Syntax
def get_from() -> str: ... def set_from(value: str) -> None: ...
from_ = property(get_from, set_from)
Default Value
""
Remarks
This property contains the email address of the HTTP agent (optional). If it contains a nonempty string, an HTTP From: header is added to the request. This header generally gives the email address of the requester of the document.
http_method Property
This property includes the HTTP method used for the request.
Syntax
def get_http_method() -> str: ... def set_http_method(value: str) -> None: ...
http_method = property(get_http_method, set_http_method)
Default Value
""
Remarks
This property contains the HTTP method used for the request. If an empty string is provided, the http_method is determined automatically by the method being called. You may change it to a custom value if you require an HTTP method other than what is provided by the class. When providing a custom value, make the request by calling the post method.
http_version Property
This property includes the HTTP Version used by the class.
Syntax
def get_http_version() -> str: ... def set_http_version(value: str) -> None: ...
http_version = property(get_http_version, set_http_version)
Default Value
"1.1"
Remarks
This property specifies the HTTP version used by the class. Possible values are as follows:
- "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.
idle Property
The current status of the class.
Syntax
def get_idle() -> bool: ...
idle = property(get_idle, None)
Default Value
TRUE
Remarks
idle will be False if the component is currently busy (communicating and/or waiting for an answer), and True at all other times.
This property is read-only.
if_modified_since Property
This property includes a date determining the maximum age of the desired document.
Syntax
def get_if_modified_since() -> str: ... def set_if_modified_since(value: str) -> None: ...
if_modified_since = property(get_if_modified_since, set_if_modified_since)
Default Value
""
Remarks
If this property contains a nonempty string, an If-Modified-Since HTTP header is added to the request. The value of this header is used to make the HTTP request conditional: If the requested documented has not been modified since the time specified in the field, a copy of the document will not be returned from the server; instead, a 304 (not modified) response will be returned by the server and the class fails with an error
The format of the date value for if_modified_since is detailed in the HTTP specs. An example is Sat, 29 Oct 1994 19:43:31 GMT.
local_file Property
This property includes the path to a local file for downloading. If the file exists, it is overwritten.
Syntax
def get_local_file() -> str: ... def set_local_file(value: str) -> None: ...
local_file = property(get_local_file, set_local_file)
Default Value
""
Remarks
This property is used when getting a document.
If this property is empty, then the received data are provided through transferred_data and the on_transfer event.
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
The local_host 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 multi-homed 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 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 multi-homed 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.
other_headers Property
This property includes other headers as determined by the user (optional).
Syntax
def get_other_headers() -> str: ... def set_other_headers(value: str) -> None: ...
other_headers = property(get_other_headers, set_other_headers)
Default Value
""
Remarks
This property can be set to a string of headers to be appended to the HTTP request headers created from other properties like content_type and from_.
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 property with caution. If this property contains invalid headers, HTTP requests may fail.
This property is useful for extending the functionality of the class beyond what is provided.
parsed_header_count Property
The number of records in the ParsedHeader arrays.
Syntax
def get_parsed_header_count() -> int: ...
parsed_header_count = property(get_parsed_header_count, None)
Default Value
0
Remarks
This property controls the size of the following arrays:
The array indices start at 0 and end at parsed_header_count - 1.This property is read-only.
parsed_header_field Property
This property contains the name of the HTTP header (this is the same case as it is delivered).
Syntax
def get_parsed_header_field(parsed_header_index: int) -> str: ...
Default Value
""
Remarks
This property contains the name of the HTTP Header (this is the same case as it is delivered).
The parsed_header_index parameter specifies the index of the item in the array. The size of the array is controlled by the parsed_header_count property.
This property is read-only.
parsed_header_value Property
This property contains the header contents.
Syntax
def get_parsed_header_value(parsed_header_index: int) -> str: ...
Default Value
""
Remarks
This property contains the Header contents.
The parsed_header_index parameter specifies the index of the item in the array. The size of the array is controlled by the parsed_header_count property.
This property is read-only.
password Property
This property includes a password if authentication is to be used.
Syntax
def get_password() -> str: ... def set_password(value: str) -> None: ...
password = property(get_password, set_password)
Default Value
""
Remarks
This property contains a password if authentication is to be used. If auth_scheme is set to HTTP Basic Authentication, the user and password are Base64 encoded and the result is put in the Authorization configuration setting in the form "Basic [encoded-user-password]".
If auth_scheme is set to HTTP Digest Authentication, the user and password properties are used to respond to the HTTP Digest Authentication challenge from the server.
If auth_scheme is set to NTLM, NTLM authentication will be attempted. If auth_scheme is set to NTLM and user and password are empty, the class will attempt to authenticate using the current user's credentials.
post_data Property
This property includes the data to post with the URL if the POST method is used.
Syntax
def get_post_data() -> bytes: ... def set_post_data(value: bytes) -> None: ...
post_data = property(get_post_data, set_post_data)
Default Value
""
Remarks
If this property has a nonempty string, then the HTTP post method is used. The contents of this property are appended to the HTTP request after the HTTP headers.
An HTTP Content-Length header is added to the request. Its value is the length of the string in post_data, or, if the attached_file property has been set, its value is the cumulative length of the string and the file. See the description of the attached_file property for details.
If the goal is to upload a file or binary form data to a receiving script, the postdata must be MIME encoded. The WebUpload component is specifically designed for this and will perform all of the MIME encoding for you automatically. The WebForm component can be used for any form data posting.
Posting HTML form input data is the most common example of this property. In this case, the content_type property must be set to "application/x-www-form-urlencoded".
Example. Performing a Post:
HTTPControl.ContentType = "application/x-www-form-urlencoded"
HTTPControl.PostData = "firstname=Tom&lastname=Thompson&country=US"
HTTPControl.Post(myurl)
pragma Property
This property includes a browser- or server-specific header line (optional).
Syntax
def get_pragma() -> str: ... def set_pragma(value: str) -> None: ...
pragma = property(get_pragma, set_pragma)
Default Value
""
Remarks
If this property contains a nonempty string, a Pragma HTTP request header is added to the request. The meaning of the header depends on the implementation. It can be used to send or receive proprietary information to or from the server.
proxy_auth_scheme Property
This property is used to tell the class which type of authorization to perform when connecting to the proxy.
Syntax
def get_proxy_auth_scheme() -> int: ... def set_proxy_auth_scheme(value: int) -> None: ...
proxy_auth_scheme = property(get_proxy_auth_scheme, set_proxy_auth_scheme)
Default Value
0
Remarks
This property is used to tell the class which type of authorization to perform when connecting to the proxy. This is used only when the proxy_user and proxy_password properties are set.
proxy_auth_scheme should be set to authNone (3) when no authentication is expected.
By default, proxy_auth_scheme is authBasic (0), and if the proxy_user and proxy_password properties are set, the component will attempt basic authentication.
If proxy_auth_scheme is set to authDigest (1), digest authentication will be attempted instead.
If proxy_auth_scheme is set to authProprietary (2), then the authorization token will not be generated by the class. Look at the configuration file for the class being used to find more information about manually setting this token.
If proxy_auth_scheme is set to authNtlm (4), NTLM authentication will be used.
For security reasons, setting this property will clear the values of proxy_user and proxy_password.
proxy_auto_detect Property
This property tells the class whether or not to automatically detect and use proxy system settings, if available.
Syntax
def get_proxy_auto_detect() -> bool: ... def set_proxy_auto_detect(value: bool) -> None: ...
proxy_auto_detect = property(get_proxy_auto_detect, set_proxy_auto_detect)
Default Value
FALSE
Remarks
This property tells the class whether or not to automatically detect and use proxy system settings, if available. The default value is False.
proxy_password Property
This property contains a password if authentication is to be used for the proxy.
Syntax
def get_proxy_password() -> str: ... def set_proxy_password(value: str) -> None: ...
proxy_password = property(get_proxy_password, set_proxy_password)
Default Value
""
Remarks
This property contains a password if authentication is to be used for the proxy.
If proxy_auth_scheme is set to Basic Authentication, the proxy_user and proxy_password are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].
If proxy_auth_scheme is set to Digest Authentication, the proxy_user and proxy_password properties are used to respond to the Digest Authentication challenge from the server.
If proxy_auth_scheme is set to NTLM Authentication, the proxy_user and proxy_password properties are used to authenticate through NTLM negotiation.
proxy_port Property
This property contains the Transmission Control Protocol (TCP) port for the proxy Server (default 80).
Syntax
def get_proxy_port() -> int: ... def set_proxy_port(value: int) -> None: ...
proxy_port = property(get_proxy_port, set_proxy_port)
Default Value
80
Remarks
This property contains the Transmission Control Protocol (TCP) port for the proxy proxy_server (default 80). See the description of the proxy_server property for details.
proxy_server Property
If a proxy Server is given, then the HTTP request is sent to the proxy instead of the server otherwise specified.
Syntax
def get_proxy_server() -> str: ... def set_proxy_server(value: str) -> None: ...
proxy_server = property(get_proxy_server, set_proxy_server)
Default Value
""
Remarks
If a proxy proxy_server is given, then the HTTP request is sent to the proxy instead of the server otherwise specified.
If the proxy_server property is set to a domain name, a DNS request is initiated. Upon successful termination of the request, the proxy_server property is set to the corresponding address. If the search is not successful, an error is returned.
proxy_ssl Property
This property determines when to use a Secure Sockets Layer (SSL) for the connection to the proxy.
Syntax
def get_proxy_ssl() -> int: ... def set_proxy_ssl(value: int) -> None: ...
proxy_ssl = property(get_proxy_ssl, set_proxy_ssl)
Default Value
0
Remarks
This property determines when to use a Secure Sockets Layer (SSL) for the connection to the proxy. The applicable values are as follows:
psAutomatic (0) | Default setting. If the url is an https URL, the class will use the psTunnel option. If the url is an http URL, the class will use the psNever option. |
psAlways (1) | The connection is always SSL enabled. |
psNever (2) | The connection is not SSL enabled. |
psTunnel (3) | The connection is made through a tunneling (HTTP) proxy. |
proxy_user Property
This property contains a username if authentication is to be used for the proxy.
Syntax
def get_proxy_user() -> str: ... def set_proxy_user(value: str) -> None: ...
proxy_user = property(get_proxy_user, set_proxy_user)
Default Value
""
Remarks
This property contains a username if authentication is to be used for the proxy.
If proxy_auth_scheme is set to Basic Authentication, the proxy_user and proxy_password properties are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].
If proxy_auth_scheme is set to Digest Authentication, the proxy_user and proxy_password properties are used to respond to the Digest Authentication challenge from the server.
If proxy_auth_scheme is set to NTLM Authentication, the proxy_user and proxy_password properties are used to authenticate through NTLM negotiation.
range Property
This property includes the byte-range to be sent to the server.
Syntax
def get_range() -> str: ... def set_range(value: str) -> None: ...
range = property(get_range, set_range)
Default Value
""
Remarks
If this property contains a nonempty string, a Range HTTP request header is added to the request. This header tells the server to send only a certain range of bytes.
The format of this property consists of a range of bytes specified by two numbers separated by '-' (e.g., "0-499")
Following are examples of this format:
First 500 bytes | 0-499 |
Second 500 bytes | 500-999 |
Final 500 bytes | -500 |
referer Property
This property includes the referer URL/document (optional).
Syntax
def get_referer() -> str: ... def set_referer(value: str) -> None: ...
referer = property(get_referer, set_referer)
Default Value
""
Remarks
If this property contains a nonempty string, a Referer HTTP request header is added to the request. The purpose of the header is to show the document referring the requested URL.
ssl_accept_server_cert_encoded Property
This is the certificate (PEM/Base64 encoded).
Syntax
def get_ssl_accept_server_cert_encoded() -> bytes: ... def set_ssl_accept_server_cert_encoded(value: bytes) -> None: ...
ssl_accept_server_cert_encoded = property(get_ssl_accept_server_cert_encoded, set_ssl_accept_server_cert_encoded)
Default Value
""
Remarks
This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The ssl_accept_server_cert_store and ssl_accept_server_cert_subject properties also may be used to specify a certificate.
When ssl_accept_server_cert_encoded is set, a search is initiated in the current ssl_accept_server_cert_store for the private key of the certificate. If the key is found, ssl_accept_server_cert_subject is updated to reflect the full subject of the selected certificate; otherwise, ssl_accept_server_cert_subject is set to an empty string.
ssl_cert_encoded Property
This is 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
This is 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_cert_store Property
This is 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
This is 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 PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e., 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
This is 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
This is 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 Property
This is 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
This is 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_provider Property
This specifies the SSL/TLS implementation to use.
Syntax
def get_ssl_provider() -> int: ... def set_ssl_provider(value: int) -> None: ...
ssl_provider = property(get_ssl_provider, set_ssl_provider)
Default Value
0
Remarks
This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic) the class will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.
Possible values are:
0 (sslpAutomatic - default) | Automatically selects the appropriate implementation. |
1 (sslpPlatform) | Uses the platform/system implementation. |
2 (sslpInternal) | Uses the internal implementation. |
In most cases using the default value (Automatic) is recommended. The class will select a provider depending on the current platform.
When Automatic is selected, on Windows the class will use the platform implementation. On Linux/macOS the class will use the internal implementation. When TLS 1.3 is enabled via SSLEnabledProtocols the internal implementation is used on all platforms.
ssl_server_cert_encoded Property
This is the certificate (PEM/Base64 encoded).
Syntax
def get_ssl_server_cert_encoded() -> bytes: ...
ssl_server_cert_encoded = property(get_ssl_server_cert_encoded, None)
Default Value
""
Remarks
This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The ssl_server_cert_store and ssl_server_cert_subject properties also may be used to specify a certificate.
When ssl_server_cert_encoded is set, a search is initiated in the current ssl_server_cert_store for the private key of the certificate. If the key is found, ssl_server_cert_subject is updated to reflect the full subject of the selected certificate; otherwise, ssl_server_cert_subject is set to an empty string.
This property is read-only.
status_line Property
This property is the first line of the last server response.
Syntax
def get_status_line() -> str: ...
status_line = property(get_status_line, None)
Default Value
""
Remarks
This property contains the first line of the last server response. This value can be used for diagnostic purposes. If an HTTP error is returned when calling a method of the class, the error string is the same as the status_line property.
The HTTP protocol specifies the structure of the status_line as follows: [HTTP version] [Result Code] [Description].
This property is read-only.
timeout Property
A timeout for the class.
Syntax
def get_timeout() -> int: ... def set_timeout(value: int) -> None: ...
timeout = property(get_timeout, set_timeout)
Default Value
60
Remarks
If the timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.
If timeout is set to a positive value, the class will wait for the operation to complete before returning control.
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.
Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by timeout seconds when any amount of data is successfully sent or received.
The default value for the timeout property is 60 seconds.
transferred_data Property
This property includes the contents of the last response from the server.
Syntax
def get_transferred_data() -> bytes: ...
transferred_data = property(get_transferred_data, None)
Default Value
""
Remarks
This property contains the contents of the last response from the server. If the local_file is empty, the data are accumulated in transferred_data and also can be received in the on_transfer event. Otherwise, this property returns an empty string.
transferred_data_limit controls the maximum amount of data accumulated in transferred_data (by default there is no limit).
This property is read-only.
transferred_data_limit Property
This property specifies the the maximum amount of data to be transferred.
Syntax
def get_transferred_data_limit() -> int: ... def set_transferred_data_limit(value: int) -> None: ...
transferred_data_limit = property(get_transferred_data_limit, set_transferred_data_limit)
Default Value
0
Remarks
This property contains the maximum amount of data to be transferred. The default value is 0, which will not impose any limits on the amount of data accumulated in the transferred_data property.
transferred_headers Property
This property includes the full set of headers as received from the server.
Syntax
def get_transferred_headers() -> str: ...
transferred_headers = property(get_transferred_headers, None)
Default Value
""
Remarks
This property returns the complete set of raw headers as received from the server.
The on_header event shows the individual headers as parsed by the class.
This property is read-only.
url Property
This property specifies the URL to fetch.
Syntax
def get_url() -> str: ... def set_url(value: str) -> None: ...
url = property(get_url, set_url)
Default Value
""
Remarks
This property contains the URL of the document. This value is parsed, and the results are put in the url_scheme, url_server, url_port, and url_path properties.
url_path Property
This property specifies the path for the URL.
Syntax
def get_url_path() -> str: ... def set_url_path(value: str) -> None: ...
url_path = property(get_url_path, set_url_path)
Default Value
""
Remarks
This property contains the path for the URL. The URL path is determined by parsing the value set in the url property.
url_port Property
This property specifies the port for the URL.
Syntax
def get_url_port() -> int: ... def set_url_port(value: int) -> None: ...
url_port = property(get_url_port, set_url_port)
Default Value
443
Remarks
This property contains the port for the URL. The HTTP server port is determined by parsing the value set in the url property.
url_scheme Property
This property includes the scheme for the URL.
Syntax
def get_url_scheme() -> str: ... def set_url_scheme(value: str) -> None: ...
url_scheme = property(get_url_scheme, set_url_scheme)
Default Value
"https"
Remarks
This property contains the scheme for the URL. The URL scheme is determined by parsing the value set in the url property.
The supported schemes are "http" and "https".
url_server Property
This property specifies the server for the URL.
Syntax
def get_url_server() -> str: ... def set_url_server(value: str) -> None: ...
url_server = property(get_url_server, set_url_server)
Default Value
""
Remarks
This property contains the server for the URL. The HTTP server name is determined by parsing the value set in the url property.
user Property
This property includes a user name if authentication is to be used.
Syntax
def get_user() -> str: ... def set_user(value: str) -> None: ...
user = property(get_user, set_user)
Default Value
""
Remarks
This property contains a user name if authentication is to be used. If auth_scheme is set to HTTP Basic Authentication, The user and password are Base64 encoded, and the result is put in the Authorization property in the form "Basic [encoded-user-password]".
If auth_scheme is set to HTTP Digest Authentication, the user and password properties are used to respond to the HTTP Digest Authentication challenge from the server.
If auth_scheme is set to NTLM, NTLM authentication will be attempted. If auth_scheme is set to NTLM, and user and password are empty, the class will attempt to authenticate using the current user's credentials.
add_cookie Method
This method adds a cookie and the corresponding value to the outgoing request headers.
Syntax
def add_cookie(cookie_name: str, cookie_value: str) -> None: ...
Remarks
This property adds a cookie and the corresponding value to the outgoing request headers. Please refer to the cookies property for more information on cookies and how they are managed.
calc_authorization Method
This method calculates the Authorization header based on provided credentials.
Syntax
def calc_authorization() -> None: ...
Remarks
This method calculates the authorization value using the values provided in auth_scheme, user, and password.
In most cases, this method does not need to be called. The class will automatically calculate any required authorization values when a method is called, such as get or post.
This method may be useful in cases in which the authorization value needs to be calculated before sending a request.
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.
connect Method
This method connects to the remote host without performing any action.
Syntax
def connect() -> None: ...
Remarks
This method establishes a connection with the remote host specified by url, but it does not send a request. In most cases, it is recommended to use the appropriate method, such as get or post, which will both establish a connection and send a request.
This method may be useful in cases in which it is desirable to establish a connection without performing any operation (e.g., when testing connectivity).
delete Method
This method deletes an object on the server.
Syntax
def delete(url: str) -> None: ...
Remarks
This method is used to delete an object at the URL specified by using the HTTP DELETE method. The server response text is received through the on_transfer event, and the HTTP response headers through the on_header event. If local_file is not empty, the data (not the headers) are written there as well. Normally, the user should have assigned correct values to user and password or Authorization.
disconnect Method
This method disconnects from the server.
Syntax
def disconnect() -> None: ...
Remarks
This method immediately disconnects from the server.
In most cases, the connection is closed automatically, and this method does not need to be called. Call the disconnect method in cases in which it is desirable to immediately disconnect.
do_events 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.
get Method
This fetches the document using the HTTP GET method.
Syntax
def get(url: str) -> None: ...
Remarks
This fetches the document using the HTTP GET method. The document contents are delivered through the on_transfer event, and the HTTP response headers are delivered through the on_header event. If local_file is not empty, the data (not the headers) are written there as well.
head Method
This fetches the document headers using the HTTP HEAD method.
Syntax
def head(url: str) -> None: ...
Remarks
This fetches the document headers using the HTTP HEAD method. The headers are received through the on_header event.
interrupt Method
Interrupt the current method.
Syntax
def interrupt() -> None: ...
Remarks
If there is no method in progress, interrupt simply returns, doing nothing.
post Method
This method posts data to the HTTP server using the HTTP POST method.
Syntax
def post(url: str) -> None: ...
Remarks
This method posts data to the HTTP server using the HTTP POST method. Posted data are taken from post_data or attached_file properties. The server response text is received through the on_transfer event, and the HTTP response headers are received through the on_header event. If local_file is not empty, the data (not the headers) are written there as well.
If the goal is to upload a file or binary form data to a receiving script, the postdata must be MIME encoded, or you should use the WebUpload or WebForm component.
Example. Performing a Post:
HTTPControl.ContentType = "application/x-www-form-urlencoded"
HTTPControl.PostData = "firstname=Tom&lastname=Thompson&country=US"
HTTPControl.Post(myurl)
put Method
This method sends data to the HTTP server using the HTTP PUT method.
Syntax
def put(url: str) -> None: ...
Remarks
This method sends data to the HTTP server. The data are taken from post_data or attached_file properties. The server response text is received through the on_transfer event, and the HTTP response headers are received through the on_header event. If local_file is not empty, the data (not the headers) are written there as well. The user normally should have assigned the correct values to user and password or Authorization.
reset Method
Reset the class.
Syntax
def reset() -> None: ...
Remarks
This method will reset the class's properties to their default values.
reset_headers Method
This method resets all HTTP headers, cookies, LocalFile , and AttachedFile .
Syntax
def reset_headers() -> None: ...
Remarks
This method resets all the HTTP headers as well as local_file and attached_file to "" (empty string). It also resets the cookie properties. Use this method before creating a new request to ensure that headers from the previous message are not carried over to the next one.
on_connected Event
This event is fired immediately after a connection completes (or fails).
Syntax
class HTTPConnectedEventParams(object): @property def status_code() -> int: ... @property def description() -> str: ... # In class HTTP: @property def on_connected() -> Callable[[HTTPConnectedEventParams], None]: ... @on_connected.setter def on_connected(event_hook: Callable[[HTTPConnectedEventParams], 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 Transmission Control Protocol (TCP)/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.
Please refer to the Error Codes section for more information.
on_connection_status Event
This event is fired to indicate changes in the connection state.
Syntax
class HTTPConnectionStatusEventParams(object): @property def connection_event() -> str: ... @property def status_code() -> int: ... @property def description() -> str: ... # In class HTTP: @property def on_connection_status() -> Callable[[HTTPConnectionStatusEventParams], None]: ... @on_connection_status.setter def on_connection_status(event_hook: Callable[[HTTPConnectionStatusEventParams], None]) -> None: ...
Remarks
The on_connection_status event is fired when the connection state changes: for example, completion of a firewall or proxy connection or completion of a security handshake.
The ConnectionEvent parameter indicates the type of connection event. Values may include the following:
Firewall connection complete. | |
Secure Sockets Layer (SSL) or S/Shell handshake complete (where applicable). | |
Remote host connection complete. | |
Remote host disconnected. | |
SSL or S/Shell connection broken. | |
Firewall host disconnected. |
on_disconnected Event
This event is fired when a connection is closed.
Syntax
class HTTPDisconnectedEventParams(object): @property def status_code() -> int: ... @property def description() -> str: ... # In class HTTP: @property def on_disconnected() -> Callable[[HTTPDisconnectedEventParams], None]: ... @on_disconnected.setter def on_disconnected(event_hook: Callable[[HTTPDisconnectedEventParams], 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 Transmission Control Protocol (TCP/IP) subsystem. Description contains a description of this code. The value of StatusCode is equal to the value of the TCP/IP error.
Please refer to the Error Codes section for more information.
on_end_transfer Event
This event is fired when a document finishes transferring.
Syntax
class HTTPEndTransferEventParams(object): @property def direction() -> int: ... # In class HTTP: @property def on_end_transfer() -> Callable[[HTTPEndTransferEventParams], None]: ... @on_end_transfer.setter def on_end_transfer(event_hook: Callable[[HTTPEndTransferEventParams], None]) -> None: ...
Remarks
The on_end_transfer event is fired first when the client finishes sending data to the server (in a POST or PUT request) and then when the document text finishes transferring from the server to the local host.
The Direction parameter shows whether the client (0) or the server (1) is sending the data.
on_error Event
Fired when information is available about errors during data delivery.
Syntax
class HTTPErrorEventParams(object): @property def error_code() -> int: ... @property def description() -> str: ... # In class HTTP: @property def on_error() -> Callable[[HTTPErrorEventParams], None]: ... @on_error.setter def on_error(event_hook: Callable[[HTTPErrorEventParams], None]) -> None: ...
Remarks
The on_error event is fired in case of exceptional conditions during message processing. Normally the class fails with an error.
The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.
on_header Event
This event is fired every time a header line comes in.
Syntax
class HTTPHeaderEventParams(object): @property def field() -> str: ... @property def value() -> str: ... # In class HTTP: @property def on_header() -> Callable[[HTTPHeaderEventParams], None]: ... @on_header.setter def on_header(event_hook: Callable[[HTTPHeaderEventParams], None]) -> None: ...
Remarks
The Field parameter contains the name of the HTTP header (which is the same as it is delivered). The Value parameter contains the header contents.
If the header line being retrieved is a continuation header line, then the Field parameter contains "" (empty string).
on_log Event
This event fires once for each log message.
Syntax
class HTTPLogEventParams(object): @property def log_level() -> int: ... @property def message() -> str: ... @property def log_type() -> str: ... # In class HTTP: @property def on_log() -> Callable[[HTTPLogEventParams], None]: ... @on_log.setter def on_log(event_hook: Callable[[HTTPLogEventParams], 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 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).
Message is the log entry.
LogType identifies the type of log entry. Possible values are as follows:
- "Info"
- "RequestHeaders"
- "ResponseHeaders"
- "RequestBody"
- "ResponseBody"
- "ProxyRequest"
- "ProxyResponse"
- "FirewallRequest"
- "FirewallResponse"
on_redirect Event
This event is fired when a redirection is received from the server.
Syntax
class HTTPRedirectEventParams(object): @property def location() -> str: ... @property def accept() -> bool: ... @accept.setter def accept(value) -> None: ... # In class HTTP: @property def on_redirect() -> Callable[[HTTPRedirectEventParams], None]: ... @on_redirect.setter def on_redirect(event_hook: Callable[[HTTPRedirectEventParams], None]) -> None: ...
Remarks
This event is fired in cases in which the client can decide whether or not to continue with the redirection process. The Accept parameter is always True by default, but if you do not want to follow the redirection, Accept may be set to False, in which case the class fails with an error. Location is the location to which the client is being redirected. Further control over redirection is provided in the follow_redirects property.
on_set_cookie Event
This event is fired for every cookie set by the server.
Syntax
class HTTPSetCookieEventParams(object): @property def name() -> str: ... @property def value() -> str: ... @property def expires() -> str: ... @property def domain() -> str: ... @property def path() -> str: ... @property def secure() -> bool: ... # In class HTTP: @property def on_set_cookie() -> Callable[[HTTPSetCookieEventParams], None]: ... @on_set_cookie.setter def on_set_cookie(event_hook: Callable[[HTTPSetCookieEventParams], None]) -> None: ...
Remarks
The on_set_cookie event is fired for every Set-Cookie: header received from the HTTP server.
The Name parameter contains the name of the cookie, with the corresponding value supplied in the Value parameter.
The Expires parameter contains an expiration time for the cookie (if provided by the server). The time format used is "Weekday, DD-Mon-YY HH:MM:SS GMT". If the server does not provide an expiration time, the Expires parameter will be an empty string. In this case, the convention is to drop the cookie at the end of the session.
The Domain parameter contains a domain name to limit the cookie to (if provided by the server). If the server does not provide a domain name, the Domain parameter will be an empty string. The convention in this case is to use the server specified in the URL (url_server) as the cookie domain.
The Path parameter contains a path name to limit the cookie to (if provided by the server). If the server does not provide a cookie path, the Path parameter will be an empty string. The convention in this case is to use the path specified in the URL (url_path) as the cookie path.
The Secure parameter specifies whether the cookie is secure. If the value of this parameter is True, the cookie value must be submitted only through a secure (HTTPS) connection.
on_ssl_server_authentication Event
Fired after the server presents its certificate to the client.
Syntax
class HTTPSSLServerAuthenticationEventParams(object): @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 HTTP: @property def on_ssl_server_authentication() -> Callable[[HTTPSSLServerAuthenticationEventParams], None]: ... @on_ssl_server_authentication.setter def on_ssl_server_authentication(event_hook: Callable[[HTTPSSLServerAuthenticationEventParams], None]) -> None: ...
Remarks
During this event, the client can decide whether or not to continue with the connection process. The Accept parameter is a recommendation on whether to continue or 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). If it is decided to continue, you can override and accept the certificate by setting the Accept parameter to True.
on_ssl_status Event
Fired when secure connection progress messages are available.
Syntax
class HTTPSSLStatusEventParams(object): @property def message() -> str: ... # In class HTTP: @property def on_ssl_status() -> Callable[[HTTPSSLStatusEventParams], None]: ... @on_ssl_status.setter def on_ssl_status(event_hook: Callable[[HTTPSSLStatusEventParams], None]) -> None: ...
Remarks
The event is fired for informational and logging purposes only. This event tracks the progress of the connection.
on_start_transfer Event
This event is fired when a document starts transferring (after the headers).
Syntax
class HTTPStartTransferEventParams(object): @property def direction() -> int: ... # In class HTTP: @property def on_start_transfer() -> Callable[[HTTPStartTransferEventParams], None]: ... @on_start_transfer.setter def on_start_transfer(event_hook: Callable[[HTTPStartTransferEventParams], None]) -> None: ...
Remarks
The on_start_transfer event is fired first when the client starts sending data to the server (in a POST or PUT request) and then when the document text starts transferring from the server to the local host.
The Direction parameter shows whether the client (0) or the server (1) is sending the data.
on_status Event
This event is fired when the HTTP status line is received from the server.
Syntax
class HTTPStatusEventParams(object): @property def http_version() -> str: ... @property def status_code() -> int: ... @property def description() -> str: ... # In class HTTP: @property def on_status() -> Callable[[HTTPStatusEventParams], None]: ... @on_status.setter def on_status(event_hook: Callable[[HTTPStatusEventParams], None]) -> None: ...
Remarks
HTTPVersion is a string containing the HTTP version string as returned from the server (e.g., "1.1").
StatusCode contains the HTTP status code (e.g., 200), and Description the associated message returned by the server (e.g., "OK").
on_transfer Event
This event is fired while a document transfers (delivers document).
Syntax
class HTTPTransferEventParams(object): @property def direction() -> int: ... @property def bytes_transferred() -> int: ... @property def percent_done() -> int: ... @property def text() -> bytes: ... # In class HTTP: @property def on_transfer() -> Callable[[HTTPTransferEventParams], None]: ... @on_transfer.setter def on_transfer(event_hook: Callable[[HTTPTransferEventParams], None]) -> None: ...
Remarks
The Text parameter contains the portion of the document text being received. It is empty if data are being posted to the server.
The BytesTransferred parameter contains the number of bytes transferred in this Direction since the beginning of the document text (excluding HTTP response headers).
The Direction parameter shows whether the client (0) or the server (1) is sending the data.
The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.
Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.
HTTP 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.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 multi-homed 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 multi-homed 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; setting is useful when trying to connect to services that require a trusted port in 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 config 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 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 etc). OpenSSL recommends to use 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
-----BEGIN CERTIFICATE-----
... (CA certificate in base64 encoding) ...
-----END CERTIFICATE-----
sequences. Before, between, and after the certificates text is allowed which can be used e.g. for descriptions of the certificates. Please 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:
/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 ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. 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 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 only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported 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 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 only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported on Windows operating systems.
Please note that this 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 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 config setting.
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:
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:
- 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_DH_ANON_WITH_AES_128_CBC_SHA");
Possible values when ssl_provider is set to Internal include:
- 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_DH_RSA_WITH_AES_128_GCM_SHA256 (Not Recommended)
- TLS_DH_RSA_WITH_AES_256_GCM_SHA384 (Not Recommended)
- TLS_DH_DSS_WITH_AES_128_GCM_SHA256 (Not Recommended)
- TLS_DH_DSS_WITH_AES_256_GCM_SHA384 (Not Recommended)
- 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 value of this setting is 4032). If you want more granular control over the enabled protocols, you can set this property to the binary 'OR' of one or more of the following values:
TLS1.3 | 12288 (Hex 3000) |
TLS1.2 | 3072 (Hex C00) (Default) |
TLS1.1 | 768 (Hex 300) (Default) |
TLS1 | 192 (Hex C0) (Default) |
SSL3 | 48 (Hex 30) [Platform Only] |
SSL2 | 12 (Hex 0C) [Platform Only] |
SSLEnabledProtocols - 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 which 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 only supported 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 only available 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 the above 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 setting is only applicable 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 traffice for debugging purposes. When writing to this file the class will only append, it will not overwrite previous values.
Note: This setting is only applicable when ssl_provider is set to Internal.
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipher[connId]");
Note: For server components (e.g.TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherStrength[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherSuite[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchange[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchangeStrength[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection 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 not-matching server name). |
This functionality is currently not available when the provider is OpenSSL.
The value of this setting is a newline (CrLf) separated list of certificates. For instance:
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
When specified the class will verify that the server certificate signature algorithm is among the values specified in this setting. If the server certificate signature algorithm is unsupported the 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 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.
In order to not restrict the server's certificate signature algorithm, specify an empty string as the value for this setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.
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 setting.
Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used which is not present in this list it will incur an additional round trip and time to generate the key share for that group.
In most cases this setting does not need to be modified. This should only be modified if there is a specific reason to do so.
The default value is ecdhe_x25519,ecdhe_secp256r1,ecdhe_secp384r1,ffdhe_2048,ffdhe_3072
The values are ordered from most preferred to least preferred. The following values are supported:
- "ecdhe_x25519" (default)
- "ecdhe_x448"
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1"
- "ffdhe_2048" (default)
- "ffdhe_3072" (default)
- "ffdhe_4096"
- "ffdhe_6144"
- "ffdhe_8192"
- "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 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.
Base Config Settings
The following is a list of valid code page identifiers:
Identifier | Name |
037 | IBM EBCDIC - U.S./Canada |
437 | OEM - United States |
500 | IBM EBCDIC - International |
708 | Arabic - ASMO 708 |
709 | Arabic - ASMO 449+, BCON V4 |
710 | Arabic - Transparent Arabic |
720 | Arabic - Transparent ASMO |
737 | OEM - Greek (formerly 437G) |
775 | OEM - Baltic |
850 | OEM - Multilingual Latin I |
852 | OEM - Latin II |
855 | OEM - Cyrillic (primarily Russian) |
857 | OEM - Turkish |
858 | OEM - Multilingual Latin I + Euro symbol |
860 | OEM - Portuguese |
861 | OEM - Icelandic |
862 | OEM - Hebrew |
863 | OEM - Canadian-French |
864 | OEM - Arabic |
865 | OEM - Nordic |
866 | OEM - Russian |
869 | OEM - Modern Greek |
870 | IBM EBCDIC - Multilingual/ROECE (Latin-2) |
874 | ANSI/OEM - Thai (same as 28605, ISO 8859-15) |
875 | IBM EBCDIC - Modern Greek |
932 | ANSI/OEM - Japanese, Shift-JIS |
936 | ANSI/OEM - Simplified Chinese (PRC, Singapore) |
949 | ANSI/OEM - Korean (Unified Hangul Code) |
950 | ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC) |
1026 | IBM EBCDIC - Turkish (Latin-5) |
1047 | IBM EBCDIC - Latin 1/Open System |
1140 | IBM EBCDIC - U.S./Canada (037 + Euro symbol) |
1141 | IBM EBCDIC - Germany (20273 + Euro symbol) |
1142 | IBM EBCDIC - Denmark/Norway (20277 + Euro symbol) |
1143 | IBM EBCDIC - Finland/Sweden (20278 + Euro symbol) |
1144 | IBM EBCDIC - Italy (20280 + Euro symbol) |
1145 | IBM EBCDIC - Latin America/Spain (20284 + Euro symbol) |
1146 | IBM EBCDIC - United Kingdom (20285 + Euro symbol) |
1147 | IBM EBCDIC - France (20297 + Euro symbol) |
1148 | IBM EBCDIC - International (500 + Euro symbol) |
1149 | IBM EBCDIC - Icelandic (20871 + Euro symbol) |
1200 | Unicode UCS-2 Little-Endian (BMP of ISO 10646) |
1201 | Unicode UCS-2 Big-Endian |
1250 | ANSI - Central European |
1251 | ANSI - Cyrillic |
1252 | ANSI - Latin I |
1253 | ANSI - Greek |
1254 | ANSI - Turkish |
1255 | ANSI - Hebrew |
1256 | ANSI - Arabic |
1257 | ANSI - Baltic |
1258 | ANSI/OEM - Vietnamese |
1361 | Korean (Johab) |
10000 | MAC - Roman |
10001 | MAC - Japanese |
10002 | MAC - Traditional Chinese (Big5) |
10003 | MAC - Korean |
10004 | MAC - Arabic |
10005 | MAC - Hebrew |
10006 | MAC - Greek I |
10007 | MAC - Cyrillic |
10008 | MAC - Simplified Chinese (GB 2312) |
10010 | MAC - Romania |
10017 | MAC - Ukraine |
10021 | MAC - Thai |
10029 | MAC - Latin II |
10079 | MAC - Icelandic |
10081 | MAC - Turkish |
10082 | MAC - Croatia |
12000 | Unicode UCS-4 Little-Endian |
12001 | Unicode UCS-4 Big-Endian |
20000 | CNS - Taiwan |
20001 | TCA - Taiwan |
20002 | Eten - Taiwan |
20003 | IBM5550 - Taiwan |
20004 | TeleText - Taiwan |
20005 | Wang - Taiwan |
20105 | IA5 IRV International Alphabet No. 5 (7-bit) |
20106 | IA5 German (7-bit) |
20107 | IA5 Swedish (7-bit) |
20108 | IA5 Norwegian (7-bit) |
20127 | US-ASCII (7-bit) |
20261 | T.61 |
20269 | ISO 6937 Non-Spacing Accent |
20273 | IBM EBCDIC - Germany |
20277 | IBM EBCDIC - Denmark/Norway |
20278 | IBM EBCDIC - Finland/Sweden |
20280 | IBM EBCDIC - Italy |
20284 | IBM EBCDIC - Latin America/Spain |
20285 | IBM EBCDIC - United Kingdom |
20290 | IBM EBCDIC - Japanese Katakana Extended |
20297 | IBM EBCDIC - France |
20420 | IBM EBCDIC - Arabic |
20423 | IBM EBCDIC - Greek |
20424 | IBM EBCDIC - Hebrew |
20833 | IBM EBCDIC - Korean Extended |
20838 | IBM EBCDIC - Thai |
20866 | Russian - KOI8-R |
20871 | IBM EBCDIC - Icelandic |
20880 | IBM EBCDIC - Cyrillic (Russian) |
20905 | IBM EBCDIC - Turkish |
20924 | IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol) |
20932 | JIS X 0208-1990 & 0121-1990 |
20936 | Simplified Chinese (GB2312) |
21025 | IBM EBCDIC - Cyrillic (Serbian, Bulgarian) |
21027 | Extended Alpha Lowercase |
21866 | Ukrainian (KOI8-U) |
28591 | ISO 8859-1 Latin I |
28592 | ISO 8859-2 Central Europe |
28593 | ISO 8859-3 Latin 3 |
28594 | ISO 8859-4 Baltic |
28595 | ISO 8859-5 Cyrillic |
28596 | ISO 8859-6 Arabic |
28597 | ISO 8859-7 Greek |
28598 | ISO 8859-8 Hebrew |
28599 | ISO 8859-9 Latin 5 |
28605 | ISO 8859-15 Latin 9 |
29001 | Europa 3 |
38598 | ISO 8859-8 Hebrew |
50220 | ISO 2022 Japanese with no halfwidth Katakana |
50221 | ISO 2022 Japanese with halfwidth Katakana |
50222 | ISO 2022 Japanese JIS X 0201-1989 |
50225 | ISO 2022 Korean |
50227 | ISO 2022 Simplified Chinese |
50229 | ISO 2022 Traditional Chinese |
50930 | Japanese (Katakana) Extended |
50931 | US/Canada and Japanese |
50933 | Korean Extended and Korean |
50935 | Simplified Chinese Extended and Simplified Chinese |
50936 | Simplified Chinese |
50937 | US/Canada and Traditional Chinese |
50939 | Japanese (Latin) Extended and Japanese |
51932 | EUC - Japanese |
51936 | EUC - Simplified Chinese |
51949 | EUC - Korean |
51950 | EUC - Traditional Chinese |
52936 | HZ-GB2312 Simplified Chinese |
54936 | Windows XP: GB18030 Simplified Chinese (4 Byte) |
57002 | ISCII Devanagari |
57003 | ISCII Bengali |
57004 | ISCII Tamil |
57005 | ISCII Telugu |
57006 | ISCII Assamese |
57007 | ISCII Oriya |
57008 | ISCII Kannada |
57009 | ISCII Malayalam |
57010 | ISCII Gujarati |
57011 | ISCII Punjabi |
65000 | Unicode UTF-7 |
65001 | Unicode UTF-8 |
Identifier | Name |
1 | ASCII |
2 | NEXTSTEP |
3 | JapaneseEUC |
4 | UTF8 |
5 | ISOLatin1 |
6 | Symbol |
7 | NonLossyASCII |
8 | ShiftJIS |
9 | ISOLatin2 |
10 | Unicode |
11 | WindowsCP1251 |
12 | WindowsCP1252 |
13 | WindowsCP1253 |
14 | WindowsCP1254 |
15 | WindowsCP1250 |
21 | ISO2022JP |
30 | MacOSRoman |
10 | UTF16String |
0x90000100 | UTF16BigEndian |
0x94000100 | UTF16LittleEndian |
0x8c000100 | UTF32String |
0x98000100 | UTF32BigEndian |
0x9c000100 | UTF32LittleEndian |
65536 | Proprietary |
- Product: The product the license is for.
- Product Key: The key the license was generated from.
- License Source: Where the license was found (e.g., RuntimeLicense, License File).
- License Type: The type of license installed (e.g., Royalty Free, Single Server).
- Last Valid Build: The last valid build number for which the license will work.
This setting only works on these classes: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.
Setting this configuration setting to True tells the class to use the internal implementation instead of using the system security libraries.
On Windows, this setting is set to False by default. On Linux/macOS, this setting is set to True by default.
To use the system security libraries for Linux, OpenSSL support must be enabled. For more information on how to enable OpenSSL, please refer to the OpenSSL Notes section.
HTTP Errors
HTTP Errors
118 Firewall Error. Error description contains detailed message. | |
143 Busy executing current method. | |
151 HTTP protocol error. The error message has the server response. | |
152 No server specified in url | |
153 Specified url_scheme is invalid. | |
155 Range operation is not supported by server. | |
156 Invalid cookie index (out of range). | |
301 Interrupted. | |
302 Can't open attached_file. |
The class may also return one of the following error codes, which are inherited from other classes.
TCPClient Errors
100 You cannot change the remote_port at this time. A connection is in progress. | |
101 You cannot change the remote_host (Server) at this time. A connection is in progress. | |
102 The remote_host address is invalid (0.0.0.0). | |
104 Already connected. If you want to reconnect, close the current connection first. | |
106 You cannot change the local_port at this time. A connection is in progress. | |
107 You cannot change the local_host at this time. A connection is in progress. | |
112 You cannot change MaxLineLength at this time. A connection is in progress. | |
116 remote_port cannot be zero. Please specify a valid service port number. | |
117 You cannot change the UseConnection option while the class is active. | |
135 Operation would block. | |
201 Timeout. | |
211 Action impossible in control's present state. | |
212 Action impossible while not connected. | |
213 Action impossible while listening. | |
301 Timeout. | |
302 Could not open file. | |
434 Unable to convert string to selected CodePage. | |
1105 Already connecting. If you want to reconnect, close the current connection first. | |
1117 You need to connect first. | |
1119 You cannot change the LocalHost at this time. A connection is in progress. | |
1120 Connection dropped by remote host. |
SSL Errors
270 Cannot load specified security library. | |
271 Cannot open certificate store. | |
272 Cannot find specified certificate. | |
273 Cannot acquire security credentials. | |
274 Cannot find certificate chain. | |
275 Cannot verify certificate chain. | |
276 Error during handshake. | |
280 Error verifying certificate. | |
281 Could not find client certificate. | |
282 Could not find server certificate. | |
283 Error encrypting data. | |
284 Error decrypting data. |
TCP/IP Errors
10004 [10004] Interrupted system call. | |
10009 [10009] Bad file number. | |
10013 [10013] Access denied. | |
10014 [10014] Bad address. | |
10022 [10022] Invalid argument. | |
10024 [10024] Too many open files. | |
10035 [10035] Operation would block. | |
10036 [10036] Operation now in progress. | |
10037 [10037] Operation already in progress. | |
10038 [10038] Socket operation on non-socket. | |
10039 [10039] Destination address required. | |
10040 [10040] Message too long. | |
10041 [10041] Protocol wrong type for socket. | |
10042 [10042] Bad protocol option. | |
10043 [10043] Protocol not supported. | |
10044 [10044] Socket type not supported. | |
10045 [10045] Operation not supported on socket. | |
10046 [10046] Protocol family not supported. | |
10047 [10047] Address family not supported by protocol family. | |
10048 [10048] Address already in use. | |
10049 [10049] Can't assign requested address. | |
10050 [10050] Network is down. | |
10051 [10051] Network is unreachable. | |
10052 [10052] Net dropped connection or reset. | |
10053 [10053] Software caused connection abort. | |
10054 [10054] Connection reset by peer. | |
10055 [10055] No buffer space available. | |
10056 [10056] Socket is already connected. | |
10057 [10057] Socket is not connected. | |
10058 [10058] Can't send after socket shutdown. | |
10059 [10059] Too many references, can't splice. | |
10060 [10060] Connection timed out. | |
10061 [10061] Connection refused. | |
10062 [10062] Too many levels of symbolic links. | |
10063 [10063] File name too long. | |
10064 [10064] Host is down. | |
10065 [10065] No route to host. | |
10066 [10066] Directory not empty | |
10067 [10067] Too many processes. | |
10068 [10068] Too many users. | |
10069 [10069] Disc Quota Exceeded. | |
10070 [10070] Stale NFS file handle. | |
10071 [10071] Too many levels of remote in path. | |
10091 [10091] Network subsystem is unavailable. | |
10092 [10092] WINSOCK DLL Version out of range. | |
10093 [10093] Winsock not loaded yet. | |
11001 [11001] Host not found. | |
11002 [11002] Non-authoritative 'Host not found' (try again or check DNS setup). | |
11003 [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP. | |
11004 [11004] Valid name, no data record (check DNS setup). |