Remove done tasks.

scheme/httpd/surflets/TODO

@@ -1,107 +1,6 @@
-- adjust open-clause in SURFLETS
-- split surflet-handler file into multiples.
-- add more comments to files.
-- change assoc to assq in get-header in surflets.
-- Add note that make-redirect-response is for CGI only
-- Add note to make-redirect-response that the browser won't notice the
--  redirect.
-- Add possibility to generate error-responses.
-- Add-simple does not work.
-- Simple SUrflet does not work.==> Bug in GET-BINDINGS of POST req.s
->>NO PROBLEM on other sites: * ??Spaceships' last step does not work.
-- Surflet administration does not work.
-- *POST-cache* in surflets.scm should be threadsafe. (it is)
-- killing sessions results in error
->>MOVED to LATER: * Simple Surflets cannot have extra HTML.
-- Uppercase some surflet names in strings.
-- Remove surflet-prefix from surflet-handler options.
-- Remove return-continuation from instance.
-- DELETE-CONTINUATION in surflet-handler: obtain lock before looking
-- for continuation table.
-- Rewrite LOAD-SURFLET in GET-SURFLET-RT-STRUCTURE in surflet-handler
-- thus it is may stand alone.
-- look for resume-url-ids only in the filename, not in the path part.
->>MOVED to LATER: * ?Only one thread for all surveillance
-- Use convert for gnuplot's output.
->>>* Better structure for input-fields: changing default values
->>>* Change representation of Simple SUrflet objects to 
->>>  record types.
->>>* Implement vectors with WRITE-BLOCK (see doc/io.txt)
-- DISCOURAGED: SUrflets get only bindings?
-- add-html self-link is wrong, same in add-surflet.scm
-- unify returned-via? and input-field-binding in dispatcher
-?? not reproducable Gateway error while accessing non existing surflet continuation
-- There's a TODO at the end of admin-profiling
-- use scheme-with-scsh in packages.
-- input-field-binding-check in admin-handler (should-be input-field-value)
-- rename set-options-session-lifetime to set-options-session-lifetime!
-- dito for adjust-timeout
->>>It is useful for initial requests or simple session-id recovering 
-  >> unexport instance-session-id: no use cognizable
-- disentangle form-query (surflets/simple-surflet-api)
 * alias for extract-single-binding (extract/single) and extract-bindings
   (extract)?
-- outsource some parts from surflets.scm; make them extra modules
+* send error 411 "Length required" in get-content-length (bindings.scm)
-- export conversion-rules 
+  if the content-length-header is missing.
-- remove l.320: why can't ... be deleted correctly?
+* use internal-error, if surflet fails, not bad gateway
-- add session-alive?
+* don't let callback-functions return.
-- (define (session-alive? session-id)
--   (assoc session-id (get-sessions)))
-- add send-html-string that gets a string and sends a no-caching html
-- export status-code Makro for surflet-handler's responses
-- three layer structures:
-  (a) Usual User: surflets:
-      surflets/send-html
-  (b) Advanced User: 
-      . Access to (his) session
-	# surflets/sessions      
-      . own conversion rules
-        # surflets/my-sxml
-      . continuations
-        # responses
-        # send/.. primitives:
-        # surflet-handler/primitives:
-  	  (export 
-  	  surflet-response-constructor
-  	  surflet-response-selectors
-  	  send/.. primitives
-  	  send-error
-  	  (status-code :syntax))
-  (c) Adminstrative User: Full acccess to surflet-handler
-  Naming convention: Avoid "surflet-handler/.." in name, if there is
-  no semantical context to the surflet-handler (e.g. exceptions:
-  responses, status-code, requests)
->>>* Problem: surveillance-thread: obtains the lock to remove the session
-  entry, if the time-to-live is zero. It may happen that another
-  thread is waiting for this lock just to do something with the killed
-  session. This will encounter an error where the lock for the session
-  table is not released. Thus, we have to use error-handler
-  everywhere, where we use *session-table-lock*
-  >> Some argument checks added with commit 1.64 of
-     surflet-handler.scm
-- >> WITH-LOCK
-- add GET-SESSION to surflet-handler
-- alist-administration in make-callback/make-annotated-address
-  (make-valued-address) -> (url [value] -> return-address)
-  returned-via? will return the value or #f if none was given
-- change data structure for input-fields
-- add annotated versions for input-field constructors
-* make subset lists for some parts
-- structure WITH-LOCK from sunterlib (add to load-surflet-server.scm)
-  and/or DYNAMIC-WIND
-- only ship ID of session / continuation to the user (--> if he saves
-  the session, it will never be GC'ed otherwise)
-- in add-raw: remove link to add-html.scm
-- remove bug: strings in urls seem to be html-quoted twice
-- at simple-surflet-api: bigger distance between following
-  radio-input-fields
-- surflet-handler 552: session-id instead of instance-session-id
-
-send error 411 "Length required" in get-content-length (bindings.scm)
-if the content-length-header is missing.
-
-don't use with-real-input-field, use let and cadr instead. (?)
-
-use internal-error, if surflet fails, not bad gateway
-
-don't let callbackfunctions return.