-#ifdef TRUST_FILES
-extern char *ij_untrusted_url(struct http_request *http, struct client_state *csp);
-#endif /* def TRUST_FILES */
+/*
+ * Content modification
+ */
+extern char *execute_content_filters(struct client_state *csp);
+extern int execute_client_body_filters(struct client_state *csp, size_t *content_length);
+extern jb_err execute_client_body_taggers(struct client_state *csp, size_t content_length);
+extern char *execute_single_pcrs_command(char *subject, const char *pcrs_command, int *hits);
+extern char *rewrite_url(char *old_url, const char *pcrs_command);
+
+extern pcrs_job *compile_dynamic_pcrs_job_list(const struct client_state *csp, const struct re_filterfile_spec *b);
+
+extern int content_requires_filtering(struct client_state *csp);
+extern int content_filters_enabled(const struct current_action_spec *action);
+extern int client_body_filters_enabled(const struct current_action_spec *action);
+extern int client_body_taggers_enabled(const struct current_action_spec *action);
+extern int filters_available(const struct client_state *csp);