Add support for probing the engine hash (requires gRPC-patched Stockfish).

[remoteglot] / www / serve-analysis.js

diff --git a/www/serve-analysis.js b/www/serve-analysis.js
index 2a53e36ae57714ed3113b2d6bfb24709ab671481..d59941f42559c56c9440a6babd269a50b6749139 100644 (file)
--- a/www/serve-analysis.js
+++ b/www/serve-analysis.js
@@ -11,6 +11,7 @@ var zlib = require('zlib');
 var readline = require('readline');
 var child_process = require('child_process');
 var delta = require('./js/json_delta.js');
+var hash_lookup = require('./js/hash-lookup.js');
 
 // Constants.
 var HISTORY_TO_KEEP = 5;
@@ -23,11 +24,15 @@ if (process.argv.length >= 3) {
        json_filename = process.argv[2];
 }
 
-// Expected destination filename.
+// Expected destination filenames.
 var serve_url = '/analysis.pl';
+var hash_serve_url = '/hash';
 if (process.argv.length >= 4) {
        serve_url = process.argv[3];
 }
+if (process.argv.length >= 5) {
+       hash_serve_url = process.argv[4];
+}
 
 // TCP port to listen on.
 var port = 5000;
@@ -139,7 +144,7 @@ var reread_file = function(event, filename) {
        json_lock = 1;
 
        console.log("Rereading " + json_filename);
-       fs.open(json_filename, 'r+', function(err, fd) {
+       fs.open(json_filename, 'r', function(err, fd) {
                if (err) throw err;
                fs.fstat(fd, function(err, st) {
                        if (err) throw err;
@@ -320,6 +325,11 @@ server.on('request', function(request, response) {
        var unique = (u.query)['unique'];
 
        log(request.url);
+       if (u.pathname === hash_serve_url) {
+               var fen = (u.query)['fen'];
+               hash_lookup.handle_request(fen, response);
+               return;
+       }
        if (u.pathname !== serve_url) {
                // This is not the request you are looking for.
                send_404(response);