HTTP Proxy Description

Features | Detailed Description

Available in .NET and VCL editions.

Http is used to open an HTTP tunnel using the CONNECT method and return a new proxied connection as described in the RFC 7231 document.

The HTTP Proxy component provides a simple way for developing customized web client applications with the HTTP proxy support. You can use this component together with any TCP protocol, such as FTP, SFTP, SMTP, or IMAP. All Clever Internet Suite client components support the HttpProxy component. Each client provides the Proxy property, that can be used to specify an instance of the HttpProxy component.

Please see the Demos code (SmtpClientProxy) and also the indexed Help documentation provided with the Clever Internet Suite installation for more details about using this component.

The most common members of the HTTP Proxy component can be seen below:

Property List

Name	Description
Active	Provides information about the activity status of the connection.
AuthorizationType	Specifies, whether the component should automatically determine the Proxy authorization method.
MaxAuthRetries	Specifies a maximum number of authentication requests allowed for the client connection.
Password	Specifies a password that allows the component to log on to a proxy.
Port	Specifies a port that allows the component to connect to a proxy server.
RequestHeader	Provides a request header to be sent to an HTTP proxy.
RequestVersion	Specifies an HTTP request version.
ResponseHeader	Provides an access to headers of an HTTP response.
ResponseVersion	Returns an HTTP version used and supported in the HTTP response.
Server	Specifies a proxy host that allows the component to connect to a proxy server.
StatusCode	Gets a response code received from an HTTP proxy.
StatusText	Gets a status line received from an HTTP proxy.
UserAgent	Specifies a name of the application or entity calling the Internet functions.
UserName	Specifies a user name that allows the component to log on to a proxy.

Method List

Name	Description
Close	Closes a previously opened server connection and terminates the current HTTP request.
Connect	Opens an HTTP tunnel using the CONNECT method and returns a new proxied connection.

Event List

Name	Description
OnClose	Occurs when the component disconnected from a proxy host.
OnOpen	Occurs when component connected to a proxy host.
OnSendRequest	Occurs when the HTTP client has sent a request.
OnReceiveResponse	Occurs when a server response is received.
OnSendRequest	Occurs when the component has sent a request.

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