clients, uwobo (java implementation, not yet tested with the OCaml one)
starts looping sending output to one of the client *)
-open Http_getter_common;;
-open Http_getter_debugger;;
-open Http_getter_misc;;
-open Http_getter_types;;
-open Printf;;
+open Http_getter_common
+open Http_getter_misc
+open Http_getter_types
+open Printf
(* expose ThreadSafe.threadSafe methods *)
class threadSafe =
raise (Http_getter_types.Cache_failure (Printexc.to_string e))
let resource_type_of_url = function
- | url when Pcre.pmatch ~pat:"\\.xml\\.gz$" url -> Enc_gzipped
- | url when Pcre.pmatch ~pat:"\\.xml$" url -> Enc_normal
+ | url when Pcre.pmatch ~pat:"\\.xml\\.gz$" url -> `Gzipped
+ | url when Pcre.pmatch ~pat:"\\.xml$" url -> `Normal
| url -> raise (Invalid_URL url)
let extension_of_resource_type = function
- | Enc_normal -> "xml"
- | Enc_gzipped -> "xml.gz"
+ | `Normal -> "xml"
+ | `Gzipped -> "xml.gz"
(* basename = resource name without trailing ".gz", if any *)
let is_in_cache basename =
Sys.file_exists
(match Lazy.force Http_getter_env.cache_mode with
- | Enc_normal -> basename
- | Enc_gzipped -> basename ^ ".gz")
+ | `Normal -> basename
+ | `Gzipped -> basename ^ ".gz")
-let respond_xml ?(enc = Enc_normal) ?(patch = true) ~url ~uri outchan =
+let respond_xml
+ ?(via_http = true) ?(enc = `Normal) ?(patch = true) ~url ~uri outchan
+ =
+ let local_part = Http_getter_misc.local_url url in
+ let local_resource = local_part <> None in
let resource_type = resource_type_of_url url in
let extension = extension_of_resource_type resource_type in
let downloadname =
(Lazy.force Http_getter_env.rdf_dir) escaped_prefix baseuri extension
in
let patch_fun =
- if patch then Http_getter_common.patch_xml else (fun x -> x)
+ let xmlbases =
+ if Http_getter_common.is_theory_uri uri then
+ Some (Filename.dirname uri, Filename.dirname url)
+ else
+ None
+ in
+ if patch then
+ Http_getter_common.patch_xml ?xmlbases ~via_http ()
+ else
+ (fun x -> x)
in
let basename = Pcre.replace ~pat:"\\.gz$" downloadname in
let contype = "text/xml" in
file name *)
let fill_cache () =
threadSafe#doWriter (lazy(
- if not (is_in_cache basename) then begin (* cache MISS *)
- debug_print "Cache MISS :-(";
+ if local_resource then begin (* resource available via file system *)
+ Http_getter_logger.log ~level:2 "Local resource, avoid caching";
+ None
+ end else if not (is_in_cache basename) then begin (* cache miss *)
+ Http_getter_logger.log ~level:2 "Cache MISS :-(";
mkdir ~parents:true (Filename.dirname downloadname);
match (resource_type, Lazy.force Http_getter_env.cache_mode) with
- | Enc_normal, Enc_normal | Enc_gzipped, Enc_gzipped ->
+ | `Normal, `Normal | `Gzipped, `Gzipped ->
wget ~output:downloadname url;
None
- | Enc_normal, Enc_gzipped -> (* resource normal, cache gzipped *)
+ | `Normal, `Gzipped -> (* resource normal, cache gzipped *)
let tmp = tempfile () in
let (res, cleanup) =
- if enc = Enc_normal then (* user wants normal: don't delete it! *)
+ if enc = `Normal then (* user wants normal: don't delete it! *)
(Some (tmp, enc), (fun () -> ()))
else
(None, (fun () -> Sys.remove tmp))
gzip ~output:(basename ^ ".gz") ~keep:true tmp; (* fill cache *)
res
));
- | Enc_gzipped, Enc_normal -> (* resource gzipped, cache normal *)
+ | `Gzipped, `Normal -> (* resource gzipped, cache normal *)
let tmp = tempfile () in
let (res, cleanup) =
- if enc = Enc_gzipped then (* user wants .gz: don't delete it! *)
+ if enc = `Gzipped then (* user wants .gz: don't delete it! *)
(Some (tmp, enc), (fun () -> ()))
else
(None, (fun () -> Sys.remove tmp))
gunzip ~output:basename ~keep:true tmp; (* fill cache *)
res
));
- end else begin
- debug_print "Cache HIT :-)";
+ end else begin (* cache hit *)
+ Http_getter_logger.log ~level:2 "Cache HIT :-)";
None
end
)) in
let tmp_short_circuit = fill_cache () in
threadSafe#doReader (lazy(
- assert (is_in_cache basename);
- match (enc, Lazy.force Http_getter_env.cache_mode) with
- | Enc_normal, Enc_normal | Enc_gzipped, Enc_gzipped ->
- (* resource in cache is already in the required format *)
+ assert (local_resource || is_in_cache basename);
+ let basename = match local_part with Some f -> f | None -> basename in
+ let resource_type =
+ if local_resource then
+ resource_type
+ else
+ Lazy.force Http_getter_env.cache_mode
+ in
+ match (enc, resource_type) with
+ | `Normal, `Normal | `Gzipped, `Gzipped ->
+ (* resource (in cache or local) is already in the required format *)
(match enc with
- | Enc_normal ->
- debug_print "No format mangling required (encoding = normal)";
- return_file ~fname:basename ~contype ~patch_fun outchan
- | Enc_gzipped ->
- debug_print "No format mangling required (encoding = gzipped)";
+ | `Normal ->
+ Http_getter_logger.log ~level:2
+ "No format mangling required (encoding = normal)";
+ return_file ~via_http ~fname:basename ~contype ~patch_fun outchan
+ | `Gzipped ->
+ Http_getter_logger.log ~level:2
+ "No format mangling required (encoding = gzipped)";
return_file
- ~fname:(basename ^ ".gz") ~contype ~contenc:"x-gzip"
+ ~via_http ~fname:(basename ^ ".gz") ~contype ~contenc:"x-gzip"
~patch_fun ~gunzip:true
outchan)
- | Enc_normal, Enc_gzipped | Enc_gzipped, Enc_normal ->
+ | `Normal, `Gzipped | `Gzipped, `Normal ->
(match tmp_short_circuit with
| None -> (* no short circuit possible, use cache *)
- debug_print "No short circuit available, use cache";
+ Http_getter_logger.log ~level:2
+ "No short circuit available, use cache (or local resource)";
let tmp = tempfile () in
finally (fun () -> Sys.remove tmp) (lazy (
(match enc with
- | Enc_normal ->
- (* required format is normal, cached version is gzipped *)
+ | `Normal ->
+ (* required format normal, cached (or local) version gzipped *)
gunzip (* gunzip to tmp *)
~output:tmp ~keep:true (basename ^ ".gz");
- return_file ~fname:tmp ~contype ~patch_fun outchan;
- | Enc_gzipped ->
+ return_file ~via_http ~fname:tmp ~contype ~patch_fun outchan;
+ | `Gzipped ->
(* required format is gzipped, cached version is normal *)
gzip ~output:tmp ~keep:true basename; (* gzip to tmp *)
return_file
- ~fname:tmp ~contype ~contenc:"x-gzip"
+ ~via_http ~fname:tmp ~contype ~contenc:"x-gzip"
~patch_fun ~gunzip:true
outchan)
))
- | Some (fname, Enc_normal) -> (* short circuit available, use it! *)
- debug_print "Using short circuit (encoding = normal)";
+ | Some (fname, `Normal) -> (* short circuit available, use it! *)
+ Http_getter_logger.log ~level:2
+ "Using short circuit (encoding = normal)";
finally (fun () -> Sys.remove fname) (lazy (
- return_file ~fname ~contype ~patch_fun outchan
+ return_file ~via_http ~fname ~contype ~patch_fun outchan
))
- | Some (fname, Enc_gzipped) -> (* short circuit available, use it! *)
- debug_print "Using short circuit (encoding = gzipped)";
+ | Some (fname, `Gzipped) -> (* short circuit available, use it! *)
+ Http_getter_logger.log ~level:2
+ "Using short circuit (encoding = gzipped)";
finally (fun () -> Sys.remove fname) (lazy (
- return_file ~fname ~contype ~contenc:"x-gzip" ~patch_fun
+ return_file ~via_http ~fname ~contype ~contenc:"x-gzip" ~patch_fun
~gunzip:true outchan
)))
))
(* TODO enc is not yet supported *)
-let respond_xsl ?(enc = Enc_normal) ?(patch = true) ~url outchan =
+let respond_xsl
+ ?(via_http = true) ?(enc = `Normal) ?(patch = true) ~url outchan
+ =
let patch_fun =
- if patch then Http_getter_common.patch_xsl else (fun x -> x)
+ if patch then Http_getter_common.patch_xsl ~via_http () else (fun x -> x)
in
let fname = tempfile () in
finally (fun () -> Sys.remove fname) (lazy (
wget ~output:fname url;
- return_file ~fname ~contype:"text/xml" ~patch_fun outchan
+ return_file ~via_http ~fname ~contype:"text/xml" ~patch_fun outchan
))
(* TODO enc is not yet supported *)
-let respond_dtd ?(enc = Enc_normal) ?(patch = true) ~url outchan =
+let respond_dtd
+ ?(via_http = true) ?(enc = `Normal) ?(patch = true) ~url outchan
+ =
let patch_fun =
- if patch then Http_getter_common.patch_dtd else (fun x -> x)
+ if patch then Http_getter_common.patch_dtd ~via_http () else (fun x -> x)
in
if Sys.file_exists url then
(* TODO check this: old getter here used text/xml *)
- return_file ~fname:url ~contype:"text/plain" ~patch_fun outchan
+ return_file ~via_http ~fname:url ~contype:"text/plain" ~patch_fun outchan
else
- return_html_error ("Can't find DTD: " ^ url) outchan
+ raise (Dtd_not_found url)
let clean () =
let module E = Http_getter_env in