(*
- * Copyright (C) 2000, HELM Team.
+ * Copyright (C) 2003, HELM Team.
*
* This file is part of HELM, an Hypertextual, Electronic
* Library of Mathematics, developed at the Computer Science
* http://cs.unibo.it/helm/.
*)
+open Http_getter_debugger;;
+open Printf;;
+
let fold_file f init fname =
let inchan = open_in fname in
let rec fold_lines' value =
in
List.fold_left (fun acc k -> f k (Hashtbl.find tbl k) acc) init sorted_keys
+let cp src dst =
+ Shell.call
+ ~stdout:Shell.to_dev_null ~stderr:Shell.to_dev_null
+ [Shell.cmd "cp" [src; dst]]
+
+let file_scheme_RE = Pcre.regexp "^file://"
+let wget ?output url =
+ let use_wget () =
+ let flags =
+ (match output with Some file -> ["-O"; file] | None -> []) @ [url]
+ in
+ debug_print ("wget " ^ String.concat " " flags);
+ Shell.call
+ ~stdout:Shell.to_dev_null ~stderr:Shell.to_dev_null
+ [Shell.cmd "wget" flags]
+ in
+ if Pcre.pmatch ~rex:file_scheme_RE url then begin (* file:// URL *)
+ let src_fname = Pcre.replace ~rex:file_scheme_RE url in
+ match output with
+ | Some dst_fname -> cp src_fname dst_fname
+ | None ->
+ let dst_fname = Filename.basename src_fname in
+ if src_fname <> dst_fname then
+ cp src_fname dst_fname
+ else (* src and dst are the same: do nothing *)
+ ()
+ end else (* other URL, pass it to wget *)
+ use_wget ()
+
+ (* stderr shown as usual *)
+let gzip ?(keep = false) fname =
+ if keep then begin (* keep original file *)
+ debug_print ("gzip -f -c " ^ fname);
+ Shell.call
+ ~stdout:(Shell.to_file (fname ^ ".gz"))
+ [Shell.cmd "gzip" ["-f"; "-c"; fname]]
+ end else begin (* don't keep original file *)
+ debug_print ("gzip -f " ^ fname);
+ Shell.call [Shell.cmd "gzip" ["-f"; fname]]
+ end
+
+ (* stderr shown as usual *)
+let gunzip ?(keep = false) fname =
+ if not (Pcre.pmatch ~pat:"\\.gz$" fname) then
+ failwith "gunzip: source file doesn't end with '.gz'";
+ let basename = Pcre.replace ~pat:"\\.gz$" fname in
+ if keep then begin (* keep original file *)
+ debug_print ("gunzip -f -c " ^ fname);
+ Shell.call
+ ~stdout:(Shell.to_file basename)
+ [Shell.cmd "gunzip" ["-f"; "-c"; fname]]
+ end else begin (* don't keep original file *)
+ debug_print ("gunzip -f " ^ fname);
+ Shell.call [Shell.cmd "gunzip" ["-f"; fname]]
+ end
+
+let tempfile () =
+ let buf = Buffer.create 28 in (* strlen("/tmp/fileSzb3Mw_http_getter") *)
+ Shell.call
+ ~stdout:(Shell.to_buffer buf)
+ [Shell.cmd "tempfile" ["--suffix=_http_getter"]];
+ Pcre.replace ~pat:"\n" (Buffer.contents buf)
+
+let mkdir ?(parents = false) dirname =
+ if not (Sys.file_exists dirname) then begin
+ let flags = if parents then ["-p"; dirname] else [dirname] in
+ debug_print ("mkdir " ^ String.concat " " flags);
+ Shell.call [Shell.cmd "mkdir" flags]
+ end
+
+let string_of_proc_status = function
+ | Unix.WEXITED code -> sprintf "[Exited: %d]" code
+ | Unix.WSIGNALED sg -> sprintf "[Killed: %d]" sg
+ | Unix.WSTOPPED sg -> sprintf "[Stopped: %d]" sg
+
+let http_get url =
+ if Pcre.pmatch ~rex:file_scheme_RE url then begin
+ (* file:// URL. Read data from file system *)
+ let fname = Pcre.replace ~rex:file_scheme_RE url in
+ try
+ let size = (Unix.stat fname).Unix.st_size in
+ let buf = String.create size in
+ let ic = open_in fname in
+ really_input ic buf 0 size;
+ close_in ic;
+ Some buf
+ with Unix.Unix_error (Unix.ENOENT, "stat", _) -> None
+ end else (* other URL, pass it to netclient *)
+ try
+ Some (Http_client.Convenience.http_get url)
+ with Http_client.Http_error (code, _) -> None
+