Merge pull request assaf#37 from philipheinser/patch-1

Unzip Remote Images If Content-Encoding is "gzip"

lib/pass.js

@@ -11,6 +11,7 @@ var HTTP              = require("http");
 var HTTPS             = require("https");
 var Path              = require("path");
 var Zip               = require("./zip");
+var zlib              = require("zlib");
 
 
 // Top-level pass fields.
@@ -298,7 +299,11 @@ function addImage(file, source, callback) {
       protocol.get(source, function(response) {
         if (response.statusCode == 200) {
           file.on("close", callback);
-          response.pipe(file);
+          if (response.headers['content-encoding'] === "gzip") {
+            response.pipe(zlib.createGunzip()).pipe(file);
+          } else {
+            response.pipe(file);
+          }
           response.resume();
         } else
           callback(new Error("Server returned " + response.statusCode + " for " + source));