Request: Remove previousUri_

Historically, the previousUri_ has different meaning from referer_,
but in the course of development, they have the same value.  This
change remove previousUri_ in favor of referer_.

src/HttpRequest.cc

@@ -224,8 +224,8 @@ std::string HttpRequest::createRequest()
     val += base64::encode(authText.begin(), authText.end());
     builtinHds.push_back(std::make_pair("Authorization:", val));
   }
-  if(!getPreviousURI().empty()) {
-    builtinHds.push_back(std::make_pair("Referer:", getPreviousURI()));
+  if(!request_->getReferer().empty()) {
+    builtinHds.push_back(std::make_pair("Referer:", request_->getReferer()));
   }
   if(cookieStorage_) {
     std::string cookiesValue;
@@ -411,11 +411,6 @@ const std::string& HttpRequest::getQuery() const
   return request_->getQuery();
 }
 
-const std::string& HttpRequest::getPreviousURI() const
-{
-  return request_->getPreviousUri();
-}
-
 std::string HttpRequest::getURIHost() const
 {
   return request_->getURIHost();

src/HttpRequest.h

@@ -131,8 +131,6 @@ public:
 
   const std::string& getQuery() const;
 
-  const std::string& getPreviousURI() const;
-
   std::string getURIHost() const;
 
   Range getRange() const;

src/Request.cc

@@ -84,7 +84,6 @@ bool Request::setUri(const std::string& uri) {
 }
 
 bool Request::resetUri() {
-  previousUri_ = referer_;
   supportsPersistentConnection_ = true;
   setConnectedAddrInfo(A2STR::NIL, A2STR::NIL, 0);
   return parseUri(uri_);
@@ -92,7 +91,7 @@ bool Request::resetUri() {
 
 void Request::setReferer(const std::string& uri)
 {
-  referer_ = previousUri_ = removeFragment(uri);
+  referer_ = removeFragment(uri);
 }
 
 bool Request::redirectUri(const std::string& uri) {

src/Request.h

@@ -52,11 +52,7 @@ private:
   std::string uri_;
   std::string currentUri_;
   /**
-   * URI previously requested to the server. This is used as Referer
-   */
-  std::string previousUri_;
-  /**
-   * URI used as Referer in the initial request
+   * URI used as Referer header field
    */
   std::string referer_;
   std::string method_;
@@ -97,7 +93,6 @@ public:
   // Returns URI passed by setUri()
   const std::string& getUri() const { return uri_; }
   const std::string& getCurrentUri() const { return currentUri_; }
-  const std::string& getPreviousUri() const { return previousUri_; }
   const std::string& getReferer() const { return referer_; }
   void setReferer(const std::string& uri);
   const std::string& getProtocol() const { return us_.protocol; }

test/RequestTest.cc

@@ -55,7 +55,7 @@ void RequestTest::testSetUri1() {
                        req.getUri());
   CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.com/"),
                        req.getCurrentUri());
-  CPPUNIT_ASSERT_EQUAL(std::string(""), req.getPreviousUri());
+  CPPUNIT_ASSERT_EQUAL(std::string(""), req.getReferer());
   CPPUNIT_ASSERT_EQUAL(std::string("http"), req.getProtocol());
   CPPUNIT_ASSERT_EQUAL((uint16_t)80, req.getPort());
   CPPUNIT_ASSERT_EQUAL(std::string("aria.rednoah.com"), req.getHost());
@@ -77,8 +77,6 @@ void RequestTest::testSetUri2() {
   // referer is unchaged
   CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.com:8080"),
                        req.getReferer());
-  // previousUri must equal to referer;
-  CPPUNIT_ASSERT_EQUAL(req.getReferer(), req.getPreviousUri());
   CPPUNIT_ASSERT_EQUAL(std::string("http"), req.getProtocol());
   CPPUNIT_ASSERT_EQUAL((uint16_t)8080, req.getPort());
   CPPUNIT_ASSERT_EQUAL(std::string("aria.rednoah.com"), req.getHost());
@@ -116,8 +114,6 @@ void RequestTest::testRedirectUri()
   // currentUri must be updated
   CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.co.jp/"),
                        req.getCurrentUri());
-  // previousUri is "" because no referer is set.
-  CPPUNIT_ASSERT_EQUAL(std::string(""), req.getPreviousUri());
   CPPUNIT_ASSERT_EQUAL(std::string("http"), req.getProtocol());
   CPPUNIT_ASSERT_EQUAL(std::string("aria.rednoah.co.jp"), req.getHost());
   CPPUNIT_ASSERT_EQUAL((uint16_t)80, req.getPort());
@@ -156,25 +152,12 @@ void RequestTest::testRedirectUri2()
 {
   Request req;
   req.setUri("http://aria.rednoah.com/download.html");
-  CPPUNIT_ASSERT_EQUAL(std::string(""), req.getPreviousUri());
   req.setReferer("http://aria.rednoah.com/");
-  // previousUri is updated when referer is specified
-  CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.com/"),
-                       req.getPreviousUri());
   req.redirectUri("http://aria.rednoah.com/403.html");
 
-  // previousUri must not be changed in redirection
-  CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.com/"),
-                       req.getPreviousUri());
-  // referer is unchagned
+  // referer must not be changed in redirection
   CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.com/"),
                        req.getReferer());
-
-  req.redirectUri("http://aria.rednoah.com/error.html");
-
-  // previousUri must not be changed in redirection
-  CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.com/"),
-                       req.getPreviousUri());
 }
 
 void RequestTest::testResetUri()
@@ -191,9 +174,6 @@ void RequestTest::testResetUri()
     (std::string("http://aria.rednoah.com:8080/aria2/index.html"),
      req.getUri());
   CPPUNIT_ASSERT_EQUAL(req.getUri(), req.getCurrentUri());
-  // previousUri must equal to referer
-  CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.com:8080/"),
-                       req.getPreviousUri());
   // referer is unchanged
   CPPUNIT_ASSERT_EQUAL(std::string("http://aria.rednoah.com:8080/"),
                        req.getReferer());