Fixed bug that some information such as port number is lost if

redirect URI contains only path component.

src/Request.cc

@@ -111,14 +111,17 @@ bool Request::redirectUri(const std::string& uri) {
   if(uri.find("://") == std::string::npos) {
     // rfc2616 requires absolute URI should be provided by Location header
     // field, but some servers don't obey this rule.
+    uri::UriStruct rus(us_);
+    rus.query.clear();
+    rus.file.clear();
+    size_t offset = 0;
     if(uri[0] == '/') {
       // abosulute path
-      redirectedUri = strconcat(us_.protocol, "://", us_.host, uri);
-    } else {
-      // relative path
-      redirectedUri = strconcat(us_.protocol, "://", us_.host, us_.dir,
-                                "/", uri);
+      rus.dir.clear();
+      offset = 1;
     }
+    redirectedUri = uri::construct(rus);
+    redirectedUri.append(uri.begin()+offset, uri.end());
   } else {
     redirectedUri = uri;
   }

test/RequestTest.cc

@@ -98,8 +98,13 @@ void RequestTest::testRedirectUri()
   req.supportsPersistentConnection(false);
   req.setUri("http://aria.rednoah.com:8080/aria2/index.html");
   
-  bool v2 = req.redirectUri("http://aria.rednoah.co.jp/");
-  CPPUNIT_ASSERT(v2);
+  // See port number is preserved.
+  CPPUNIT_ASSERT(req.redirectUri("/foo"));
+  CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.com:8080/foo"),
+                       req.getCurrentUri());
+  CPPUNIT_ASSERT_EQUAL((unsigned int)1, req.getRedirectCount());
+
+  CPPUNIT_ASSERT(req.redirectUri("http://aria.rednoah.co.jp/"));
   // persistent connection flag is set to be true after redirection
   CPPUNIT_ASSERT(req.supportsPersistentConnection());
   // uri must be the same
@@ -118,20 +123,20 @@ void RequestTest::testRedirectUri()
   CPPUNIT_ASSERT_EQUAL(std::string(""), req.getFile());
   CPPUNIT_ASSERT_EQUAL(std::string(""), req.getQuery());
   // See redirect count is incremented.
-  CPPUNIT_ASSERT_EQUAL((unsigned int)1, req.getRedirectCount());
+  CPPUNIT_ASSERT_EQUAL((unsigned int)2, req.getRedirectCount());
 
   // Give abosulute path
   CPPUNIT_ASSERT(req.redirectUri("/abspath/to/file"));
   CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.co.jp/abspath/to/file"),
                        req.getCurrentUri());
-  CPPUNIT_ASSERT_EQUAL((unsigned int)2, req.getRedirectCount());
+  CPPUNIT_ASSERT_EQUAL((unsigned int)3, req.getRedirectCount());
 
   // Give relative path
   CPPUNIT_ASSERT(req.redirectUri("relativepath/to/file"));
   CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.co.jp/abspath/to/"
                                    "relativepath/to/file"),
                        req.getCurrentUri());
-  CPPUNIT_ASSERT_EQUAL((unsigned int)3, req.getRedirectCount());
+  CPPUNIT_ASSERT_EQUAL((unsigned int)4, req.getRedirectCount());
 }
 
 void RequestTest::testRedirectUri2()