adamc@764: (* Copyright (c) 2008-2009, Adam Chlipala
adamc@764:  * All rights reserved.
adamc@764:  *
adamc@764:  * Redistribution and use in source and binary forms, with or without
adamc@764:  * modification, are permitted provided that the following conditions are met:
adamc@764:  *
adamc@764:  * - Redistributions of source code must retain the above copyright notice,
adamc@764:  *   this list of conditions and the following disclaimer.
adamc@764:  * - Redistributions in binary form must reproduce the above copyright notice,
adamc@764:  *   this list of conditions and the following disclaimer in the documentation
adamc@764:  *   and/or other materials provided with the distribution.
adamc@764:  * - The names of contributors may not be used to endorse or promote products
adamc@764:  *   derived from this software without specific prior written permission.
adamc@764:  *
adamc@764:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@764:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@764:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@764:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@764:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
adamc@764:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@764:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@764:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@764:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@764:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@764:  * POSSIBILITY OF SUCH DAMAGE.
adamc@764:  *)
adamc@764: 
adamc@764: signature SETTINGS = sig
adamc@764:     
adamc@866:     val setDebug : bool -> unit
adamc@866:     val getDebug : unit -> bool
adamc@866:                            
adamc@866:     val clibFile : string -> string
adamc@866: 
adamc@765:     (* How do all application URLs begin? *)
adamc@764:     val setUrlPrefix : string -> unit
adamc@764:     val getUrlPrefix : unit -> string
adamc@764: 
adamc@765:     (* How many seconds should the server wait before assuming a Comet client has left? *)
adamc@764:     val setTimeout : int -> unit
adamc@764:     val getTimeout : unit -> int
adamc@764: 
adamc@765:     (* Which C header files are needed? *)
adamc@764:     val setHeaders : string list -> unit
adamc@764:     val getHeaders : unit -> string list
adamc@764: 
adamc@766:     (* Which extra JavaScript URLs should be included? *)
adamc@766:     val setScripts : string list -> unit
adamc@766:     val getScripts : unit -> string list
adamc@766: 
adamc@765:     type ffi = string * string
adamc@765: 
adamc@765:     (* Which FFI types may be sent from clients to servers? *)
adamc@765:     val setClientToServer : ffi list -> unit
adamc@765:     val mayClientToServer : ffi -> bool
adamc@765: 
adamc@765:     (* Which FFI functions have side effects? *)
adamc@765:     val setEffectful : ffi list -> unit
adamc@765:     val isEffectful : ffi -> bool
adamc@765: 
adamc@765:     (* Which FFI functions may only be run in clients? *)
adamc@765:     val setClientOnly : ffi list -> unit
adamc@765:     val isClientOnly : ffi -> bool
adamc@765: 
adamc@765:     (* Which FFI functions may only be run on servers? *)
adamc@765:     val setServerOnly : ffi list -> unit
adamc@765:     val isServerOnly : ffi -> bool
adamc@765: 
adamc@765:     (* Which FFI functions may be run in JavaScript?  (JavaScript function names included) *)
adamc@765:     val setJsFuncs : (ffi * string) list -> unit
adamc@765:     val jsFunc : ffi -> string option
adamc@765: 
adamc@768:     datatype pattern_kind = Exact | Prefix
adamc@768:     datatype action = Allow | Deny
adamc@768:     type rule = { action : action, kind : pattern_kind, pattern : string }
adamc@768: 
adamc@768:     datatype path_kind = Any | Url | Table | Sequence | View | Relation | Cookie | Style
adamc@768:     type rewrite = { pkind : path_kind, kind : pattern_kind, from : string, to : string }
adamc@768: 
adamc@768:     (* Rules for rewriting URLs from canonical forms *)
adamc@768:     val setRewriteRules : rewrite list -> unit
adamc@768:     val rewrite : path_kind -> string -> string
adamc@768: 
adamc@769:     (* Validating URLs and MIME types *)
adamc@769:     val setUrlRules : rule list -> unit
adamc@770:     val getUrlRules : unit -> rule list
adamc@769:     val checkUrl : string -> bool
adamc@769: 
adamc@769:     val setMimeRules : rule list -> unit
adamc@770:     val getMimeRules : unit -> rule list
adamc@769:     val checkMime : string -> bool
adamc@769: 
adamc@855:     (* Web protocols that generated programs may speak *)
adamc@855:     type protocol = {
adamc@855:         name : string,      (* Call it this on the command line *)
adamc@855:         link : string,      (* Pass these linker arguments *)
adamc@858:         persistent : bool   (* Multiple requests per process? *)
adamc@855:     }
adamc@855:     val addProtocol : protocol -> unit
adamc@856:     val setProtocol : string -> unit
adamc@855:     val currentProtocol : unit -> protocol
adamc@855: 
adamc@866:     (* Different DBMSes *)
adamc@867:     datatype sql_type =
adamc@867:              Int
adamc@867:            | Float
adamc@867:            | String
adamc@867:            | Bool
adamc@867:            | Time
adamc@867:            | Blob
adamc@867:            | Channel
adamc@867:            | Client
adamc@867:            | Nullable of sql_type
adamc@867: 
adamc@873:     val p_sql_ctype : sql_type -> string
adamc@867:     val isBlob : sql_type -> bool
adamc@870:     val isNotNull : sql_type -> bool
adamc@867: 
adamc@866:     type dbms = {
adamc@866:          name : string,
adamc@866:          (* Call it this on the command line *)
adamc@866:          header : string,
adamc@866:          (* Include this C header file *)
adamc@866:          link : string,
adamc@866:          (* Pass these linker arguments *)
adamc@873:          p_sql_type : sql_type -> string,
adamc@870:          init : {dbstring : string,
adamc@870:                  prepared : (string * int) list,
adamc@870:                  tables : (string * (string * sql_type) list) list,
adamc@872:                  views : (string * (string * sql_type) list) list,
adamc@870:                  sequences : string list} -> Print.PD.pp_desc,
adamc@874:          (* Define uw_client_init(), uw_db_init(), uw_db_close(), uw_db_begin(), uw_db_commit(), and uw_db_rollback() *)
adamc@873:          query : {loc : ErrorMsg.span, cols : sql_type list,
adamc@880:                   doCols : ({loc : ErrorMsg.span, wontLeakStrings : bool, col : int, typ : sql_type} -> Print.PD.pp_desc)
adamc@867:                            -> Print.PD.pp_desc}
adamc@867:                  -> Print.PD.pp_desc,
adamc@867:          queryPrepared : {loc : ErrorMsg.span, id : int, query : string,
adamc@873:                           inputs : sql_type list, cols : sql_type list,
adamc@880:                           doCols : ({loc : ErrorMsg.span, wontLeakStrings : bool, col : int,
adamc@880:                                      typ : sql_type} -> Print.PD.pp_desc)
adamc@879:                                    -> Print.PD.pp_desc,
adamc@879:                           nested : bool}
adamc@868:                          -> Print.PD.pp_desc,
adamc@868:          dml : ErrorMsg.span -> Print.PD.pp_desc,
adamc@868:          dmlPrepared : {loc : ErrorMsg.span, id : int, dml : string,
adamc@869:                         inputs : sql_type list} -> Print.PD.pp_desc,
adamc@878:          nextval : {loc : ErrorMsg.span, seqE : Print.PD.pp_desc, seqName : string option} -> Print.PD.pp_desc,
adamc@874:          nextvalPrepared : {loc : ErrorMsg.span, id : int, query : string} -> Print.PD.pp_desc,
adamc@874:          sqlifyString : string -> string,
adamc@874:          p_cast : string * sql_type -> string,
adamc@874:          p_blank : int * sql_type -> string (* Prepared statement input *),
adamc@877:          supportsDeleteAs : bool,
adamc@877:          createSequence : string -> string,
adamc@878:          textKeysNeedLengths : bool,
adamc@879:          supportsNextval : bool,
adamc@879:          supportsNestedPrepared : bool
adamc@866:     }
adamc@857: 
adamc@866:     val addDbms : dbms -> unit
adamc@866:     val setDbms : string -> unit
adamc@866:     val currentDbms : unit -> dbms
adamc@858: 
adamc@764: end