-/*********************************************************************
- *
- * Function : get_filter_function
- *
- * Description : Decides which content filter function has
- * to be applied (if any).
- *
- * XXX: Doesn't handle filter_popups()
- * because of the different prototype. Probably
- * we should ditch filter_popups() anyway, it's
- * even less reliable than popup blocking based
- * on pcrs filters.
- *
- * Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- *
- * Returns : The content filter function to run, or
- * NULL if no content filter is active
- *
- *********************************************************************/
-static filter_function_ptr get_filter_function(struct client_state *csp)
-{
- filter_function_ptr filter_function = NULL;
-
- /*
- * Are we enabling text mode by force?
- */
- if (csp->action->flags & ACTION_FORCE_TEXT_MODE)
- {
- /*
- * Do we really have to?
- */
- if (csp->content_type & CT_TEXT)
- {
- log_error(LOG_LEVEL_HEADER, "Text mode is already enabled.");
- }
- else
- {
- csp->content_type |= CT_TEXT;
- log_error(LOG_LEVEL_HEADER, "Text mode enabled by force. Take cover!");
- }
- }
-
- if (!(csp->content_type & CT_DECLARED))
- {
- /*
- * The server didn't bother to declare a MIME-Type.
- * Assume it's text that can be filtered.
- *
- * This also regulary happens with 304 responses,
- * therefore logging anything here would cause
- * too much noise.
- */
- csp->content_type |= CT_TEXT;
- }
-
-
- /*
- * Choose the applying filter function based on
- * the content type and action settings.
- */
- if ((csp->content_type & CT_TEXT) &&
- (csp->rlist != NULL) &&
- (!list_is_empty(csp->action->multi[ACTION_MULTI_FILTER])))
- {
- filter_function = pcrs_filter_response;
- }
- else if ((csp->content_type & CT_GIF) &&
- (csp->action->flags & ACTION_DEANIMATE))
- {
- filter_function = gif_deanimate_response;
- }
- else if ((csp->content_type & CT_JPEG) &&
- (csp->action->flags & ACTION_JPEG_INSPECT))
- {
- filter_function = jpeg_inspect_response;
- }
-
- return filter_function;
-}
-