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/usr/lib/swipl/library/ext/http/http/http_dispatch.pl
All Application Manual Name SummaryHelp

  • http
    • http
      • http_unix_daemon.pl -- Run SWI-Prolog HTTP server as a Unix system daemon
      • thread_httpd.pl -- Threaded HTTP server
      • http_wrapper.pl
      • http_header.pl
      • http_stream.pl -- HTTP Streams
      • http_exception.pl -- Map Prolog exceptions to HTTP errors
      • http_path.pl -- Abstract specification of HTTP server locations
      • http_dispatch.pl -- Dispatch requests in the HTTP server
        • http_handler/3
        • http_delete_handler/1
        • http_dispatch/1
        • http_request_expansion/2
        • http_current_handler/2
        • http_current_handler/3
        • http_location_by_id/2
        • http_link_to_id/3
        • http_reload_with_parameters/3
        • http_reply_file/3
        • http_safe_file/2
        • http_redirect/3
        • http_404/2
        • http_switch_protocol/2
      • http_host.pl -- Obtain public server location
      • http_parameters.pl -- Extract parameters (GET and POST) from HTTP requests
      • http_client.pl -- HTTP client library
      • http_multipart_plugin.pl -- Multipart form-data plugin
      • http_hook.pl -- HTTP library hooks
      • html_write.pl -- Write HTML text
      • html_quasiquotations.pl -- HTML quasi quotations
      • mimetype.pl -- Determine mime-type for a file
      • html_head.pl -- Automatic inclusion of CSS and scripts links
      • http_server_files.pl -- Serve files needed by modules from the server
      • term_html.pl -- Represent Prolog terms as HTML
      • json.pl -- Reading and writing JSON serialization
      • http_open.pl -- HTTP client library
      • http_session.pl -- HTTP Session management
      • http_openid.pl -- OpenID consumer and server library
      • yadis.pl -- Yadis discovery
      • ax.pl -- Attribute Exchange library
      • http_authenticate.pl -- Authenticate HTTP connections using 401 headers
      • http_json.pl -- HTTP JSON Plugin module
      • http_dirindex.pl -- HTTP directory listings
      • js_write.pl -- Utilities for including JavaScript
      • js_grammar.pl -- JavaScript grammar
      • http_cors.pl -- Enable CORS: Cross-Origin Resource Sharing
      • json_convert.pl -- Convert between JSON terms and Prolog application terms
      • http_server.pl -- HTTP server library
      • http_dyn_workers.pl -- Dynamically schedule HTTP workers.
      • http_server_health.pl -- HTTP Server health statistics
      • hub.pl -- Manage a hub for websockets
      • websocket.pl -- WebSocket support
      • http_log.pl -- HTTP Logging module
      • mimepack.pl -- Create a MIME message
 http_dispatch(Request) is det
Dispatch a Request using http_handler/3 registrations. It performs the following steps:
  1. Find a matching handler based on the path member of Request. If multiple handlers match due to the prefix option or variables in path segments (see http_handler/3), the longest specification is used. If multiple specifications of equal length match the one with the highest priority is used.
  2. Check that the handler matches the method member of the Request or throw permission_error(http_method, Method, Location)
  3. Expand the request using expansion hooks registered by http_request_expansion/3. This may add fields to the request, such the authenticated user, parsed parameters, etc. The hooks may also throw exceptions, notably using http_redirect/3 or by throwing http_reply(Term, ExtraHeader, Context) exceptions.
  4. Extract possible fields from the Request using e.g. method(Method) as one of the options.
  5. Call the registered closure, optionally spawning the request to a new thread or enforcing a time limit.
ClioPatria (version V3.1.1-51-ga0b30a5)