storage: use standard URL instead of calling getMetadata - fixes #524

Author: stephenplusplus

lib/storage/file.js

@@ -321,18 +321,12 @@ File.prototype.createReadStream = function(options) {
   var crc32c = validation === 'crc32c' || validation === 'all';
   var md5 = validation === 'md5' || validation === 'all';
 
-  if (this.metadata.mediaLink) {
-    createAuthorizedReq(this.metadata.mediaLink);
-  } else {
-    this.getMetadata(function(err, metadata, resp) {
-      if (err) {
-        done(err, resp);
-        return;
-      }
+  var remoteFilePath = util.format('https://{b}.storage.googleapis.com/{o}', {
+    b: this.bucket.name,
+    o: encodeURIComponent(this.name)
+  });
 
-      createAuthorizedReq(metadata.mediaLink);
-    });
-  }
+  createAuthorizedReq(remoteFilePath);
 
   return throughStream;
 

test/storage/file.js

@@ -274,50 +274,25 @@ describe('File', function() {
   });
 
   describe('createReadStream', function() {
-    var metadata = { mediaLink: 'filelink' };
-
-    it('should confirm file exists before reading', function(done) {
-      file.getMetadata = function() {
-        done();
-      };
-      file.createReadStream();
-    });
-
-    it('should emit error if stat returns error', function(done) {
-      var error = new Error('Error.');
-      file.getMetadata = function(callback) {
-        setImmediate(function() {
-          callback(error);
-        });
-      };
-      file.createReadStream()
-        .once('error', function(err) {
-          assert.equal(err, error);
-          done();
-        });
-    });
-
     it('should create an authorized request', function(done) {
+      var expectedPath = util.format('https://{b}.storage.googleapis.com/{o}', {
+        b: file.bucket.name,
+        o: encodeURIComponent(file.name)
+      });
+
       file.bucket.storage.makeAuthorizedRequest_ = function(opts) {
-        assert.equal(opts.uri, metadata.mediaLink);
+        assert.equal(opts.uri, expectedPath);
         done();
       };
 
-      file.getMetadata = function(callback) {
-        callback(null, metadata);
-      };
-
       file.createReadStream();
     });
 
     it('should emit an error from authorizing', function(done) {
       var error = new Error('Error.');
       file.bucket.storage.makeAuthorizedRequest_ = function(opts, callback) {
-        (callback.onAuthorized || callback)(error);
-      };
-      file.getMetadata = function(callback) {
         setImmediate(function() {
-          callback(null, metadata);
+          (callback.onAuthorized || callback)(error);
         });
       };
       file.createReadStream()
@@ -346,10 +321,6 @@ describe('File', function() {
       };
       nodeutil.inherits(request_Override, stream.Readable);
 
-      file.getMetadata = function(callback) {
-        callback(null, metadata);
-      };
-
       file.bucket.storage.makeAuthorizedRequest_ = function(opts, callback) {
         (callback.onAuthorized || callback)(null, fakeRequest);
       };
@@ -480,7 +451,6 @@ describe('File', function() {
         return duplexify();
       };
 
-      file.metadata = metadata;
       file.createReadStream({ start: startOffset });
     });
 
@@ -495,7 +465,6 @@ describe('File', function() {
         return duplexify();
       };
 
-      file.metadata = metadata;
       file.createReadStream({ end: endOffset });
     });
 
@@ -512,7 +481,6 @@ describe('File', function() {
         return duplexify();
       };
 
-      file.metadata = metadata;
       file.createReadStream({ start: startOffset, end: endOffset });
     });
 
@@ -529,7 +497,6 @@ describe('File', function() {
         return duplexify();
       };
 
-      file.metadata = metadata;
       file.createReadStream({ start: startOffset, end: endOffset });
     });
   });