Main page -> ICS components reference
-> THttpServer
Overview
- unit HttpSrv.pas
- inheritance THttpServer- TComponent
THttpServer component is implementing the server side HTTP protocol. HTTP protocol is the standard protocol for browsing the World Wide Web.
If you want to write a web application, you should use THttpAppSrv which derive from THttpServer and add a lot of nice features to ease writing HTTP application server.
Properties
| Addr |
|
Binds the server to a specific IP-address and only receives request for that IP+Port.
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| AuthDigestMethod |
|
Select the method to be used for digest authentication.
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| AuthDigestNonceLifeTimeMin |
|
Life time for digest nonce.
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| AuthRealm |
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Name space for authentication.
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| AuthTypes |
|
Allowed authentications methods.
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| DefaultDoc |
|
Name of the default document.
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| DocDir |
|
Path name for the root directory where documents are stored.
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| IcsLogger |
|
Reference to the TIcsLgger component.
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| KeepAliveTimeSec |
|
Keep alive time expressed in seconds.
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| LingerOnOff |
|
How linger must be done. This affect the way sockets are closed.
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| LingerTimeout |
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How long should the socket linger when closing.
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| ListenBackog |
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How many connections can be queued by the OS before refusing new connections.
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| MaxClients |
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Maximum number of simultaneous client accepted. Use 0 if not limit desired.
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| MaxRequestsKeepAlive |
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MaxRequestsKeepAlive.
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| Name |
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Component name.
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| Options |
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Affect how the component is operating.
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| Port |
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TCP port number the component has to listen to.
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| Tag |
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Tag.
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| TemplateDir |
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Path where the component search for dynamic pages templates.
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Runtime properties
| ClientCount |
|
Number of currently connected clients.
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| Client |
|
Array of connected clients. Index is from 0 to ClientCount - 1.
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| ClientClass |
|
Reference to the class the component has to instanciate for each client.
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| WSocketServer |
|
Reference to the underlaying TWSocketServer.
|
Methods
| Start |
|
Starts the webserver so it lisen for incoming requests.
|
Events
| OnServerStarte |
|
Triggered when server has started listening
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| OnServerStopped |
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Triggered when server has stopped listening
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| OnClientConnect |
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Triggered when a client has connected
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| OnClientDisconnect |
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Triggered when a client is about to disconnect.
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| OnGetDocument |
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Triggered when a client sent GET request. You can either do nothing and let server handle all work, or you can build a document on the fly or refuse access.
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| OnHeadDocument |
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Triggered when a client sent HEAD request. You can either do nothing and let server handle all work, or you can build a document header on the fly or refuse access.
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| OnPostDocument |
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Triggered when a client sent POST request. You have to tell if you accept data or not. If you accept, you'll get OnPostedData event with incomming data.
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| OnPostedData |
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Triggered when client post data and you accepted it from OnPostDocument event. When you've got all data, you have to build a reply to be sent to client.
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| OnHttpRequestDone |
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A HTTP request has been handled on behalf of a client.
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| OnBeforeProcessRequest |
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Triggered before processing any request.
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| OnFilterDirEntry |
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Triggered to filter directory entries.
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| OnAuthGetPassword |
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Triggered to get the password for authentication
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| OnAuthResult |
|
TAuthResultEvent
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| OnAuthGetType |
|
TAuthGetTypeEvent
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| OnAuthNtlmBeforeValidat |
|
TAuthNtlmBeforeValidate
|
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