├── log_file_backend.js
├── logs.js
└── log_watcher.js


/log_file_backend.js:
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 1 | var sys = require("sys"),
 2 |     posix = require("posix"),
 3 |     filename = "./logs.received",
 4 |     fd = posix.open(filename,
 5 | 		    process.O_WRONLY | process.O_APPEND | process.O_CREAT,
 6 | 		    process.S_IRWXU | process.S_IRGRP | process.S_IROTH
 7 | 		    ).wait();
 8 | 
 9 | exports.record_message = function(request, msg) {
10 |     posix.write(fd, msg);
11 | }
12 | 


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/logs.js:
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 1 | var sys = require("sys"),
 2 |     http = require("http");
 3 | 
 4 | var backend = (process.ARGV[3]) ? process.ARGV[3] : "./log_file_backend";
 5 | var record_message = require(backend).record_message;
 6 | 
 7 | http.createServer(function (request, response) {
 8 | 	var content = "";
 9 | 	request.addListener("body", function(chunk) {
10 | 		content += chunk;
11 | 	    });
12 | 	request.addListener("complete", function() {
13 | 		record_message(request, content);
14 | 		response.sendHeader(200, {"Content-Type": "text/plain"});
15 | 		response.sendBody("stored message (" + content.length + ")");
16 | 		response.finish();
17 | 	    });
18 |     }).listen(8000);
19 | 


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/log_watcher.js:
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 1 | var sys = require("sys"),
 2 |     http = require("http"),
 3 |     file = process.ARGV[3],
 4 |     hostname = (process.ARGV[4]) ? process.ARGV[4] : "localhost",
 5 |     port = (process.ARGV[5]) ? parseInt(process.ARGV[5]) : 8000,
 6 |     log_server = http.createClient(port, hostname);
 7 | 
 8 | sys.puts("sending logs to " + hostname + ":" + port);
 9 | 
10 | var send_log = function(msg) {
11 |     var req = log_server.request("POST", "/", {"Content-Length":msg.length});
12 |     req.sendBody(msg, encoding="ascii");
13 |     req.finish();
14 | }
15 | 
16 | var monitor_file = function(filename) {
17 |     sys.puts("monitor_file: monitoring " + filename);
18 |     var cmd = process.createChildProcess("tail", ["-F", filename]);
19 |     cmd.addListener("output", function(data) {
20 | 	    sys.puts("output: sending (" + data.length + ")");	    
21 | 	    send_log(data);
22 | 	});
23 | };
24 | 
25 | monitor_file(file);
26 | 


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