lib/router.js

   1 var url = require("url");
   2 var fs = require("fs");
   3 var cache = require("./cache.js");
   4
   5 exports.routeRequest = function(req, res) {
   6         // first, strip a /pub/ off the front if it exists
   7         var originalurl = url.parse(req.url);
   8         var range = 0;
   9
  10         thisurl = originalurl.pathname.replace(/^\/pub/, "");
  11
  12         console.log("pathname now: ", thisurl);
  13
  14         //if(thisurl.pathname == "") thisurl.pathname = "/";
  15
  16         var reqpath = global.repoproxy.cacheDir + "/" + thisurl;
  17
  18         console.log("request on '%s'", reqpath);
  19
  20         // see what we're dealing with
  21         fs.stat(reqpath, function(err, stat) {
  22                 console.log("err is ", err);
  23                 console.log("stat is ", stat);
  24                 console.log("fs.stats is ", fs.stats);
  25
  26                 if(err == null) {
  27                         if(stat.isDirectory()) {
  28                                 if(originalurl.pathname.charAt(originalurl.pathname.length-1) != "/") {
  29                                         // redirect to url + "/"
  30                                         res.writeHead("302", { "Location": originalurl.pathname+"/" });
  31                                         res.end();
  32                                 } else {
  33                                         writeDirectoryListing(reqpath, originalurl.pathname, res);
  34                                 }
  35                         } else {
  36                                 if(stat.isFile()) {
  37                                         cache.serviceFile(reqpath, res, range);
  38                                 }
  39                         }
  40                 } else {
  41                         // go upstream..
  42                         cache.serviceFile(reqpath, res, range);
  43                 }
  44         });
  45 }
  46
  47 function writeDirectoryListing(reqpath, requesturi, res) {
  48         res.write("<html><h1>Directory listing for " + requesturi + "</h1><hr><pre>");
  49         if(requesturi != "/") res.write("<a href=\"..\">Parent</a>\n\n");
  50         fs.readdir(reqpath, function(err, files) {
  51                 console.log("doing directory listing on: ", reqpath);
  52                 if(err == null) {
  53
  54                         // TODO: make this work asynchronously...
  55                         if(files.length == 0) {
  56                                 res.write("Empty Directory....\b");
  57                         } else {
  58                                 for(var i=0; i<files.length; i++) {
  59                                         // avoiding statSync is too hard for now, will fix later TODO: fix this sync bit
  60                                         var stats = fs.statSync(reqpath+"/"+files[i]);
  61
  62                                         if(stats.isDirectory()) {
  63
  64                                                 res.write("Directory: <a href=\""+files[i]+"/\">"+files[i]+"/</a>\n");
  65                                         } else if(stats.isFile()) {
  66                                                 var padlength = 80 - (files[i].length) - stats.size.toString().length;
  67                                                 var padding = "";
  68                                                 if(padlength > 0) {
  69                                                         padding = new Array(padlength).join(" ");
  70                                                 }
  71                                                 res.write("File:      <a href=\""+files[i]+"\">"+files[i]+"</a>"+padding+stats.size+" bytes\n");
  72                                         }
  73                                 }
  74                         }
  75                         res.write("<hr></pre>");
  76                         res.end();
  77                 } else {
  78                         res.write("we have entered bizaro world...\n");
  79                         res.write("</pre>");
  80                         res.end();
  81                 }
  82         });
  83 }