2007-08-08 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>

MessageDigestHelper is introduced in order to simplify the use
	of message digest. Removed repeated code.
	The message digest algorithm is now specified by string, like 
"sha1",
	"md5".
	* src/messageDigest.{h, cc}
	* src/MessageDigestHelper.{h, cc}: New class.
	* src/DefaultPieceStorage.cc
	* src/DefaultBtContext.{h, cc}
	(computeFastSet): New function.
	(setInfoHash): Added for unit testing.
	(setNumPieces): Added for unit testing.
	* src/DefaultBtInteractive.cc
	* src/BtPieceMessage.cc
	* src/Peer.cc
	* src/Checksum.h
	* src/message.h
	* src/IteratableChecksumValidator.h
	* src/ChunkChecksumValidator.{h, cc}: Use 
IteratableChecksumValidator
	inside it.
	* src/SegmentMan.{h, cc}
	(checkIntegrity): Removed.
	* src/IteratableChunkChecksumValidator.{h, cc}
	* src/Util.h
	(sha1Sum): Removed.
	(simpleMessageDigest): Removed.
	(fileChecksum): Removed.
	(computeFastSet): Removed.
	* src/ShaVisitor.cc
	* src/ChunkChecksum.h
	* src/DownloadCommand.cc

	Removed messageDigest virtual functions.
	* src/MultiDiskAdaptor.{h, cc}
	* src/DiskAdaptor.h
	* src/ByteArrayDiskWriter.h
	* src/DiskWriter.h
	* src/DiskAdaptorWriter.h
	* src/AbstractSingleDiskAdaptor.{h, cc}
	* src/AbstractDiskWriter.{h, cc}
	
	Fixed comilation error when message digest is disabled.
	* src/MetalinkEntry.{h, cc}
	* src/MetalinkRequestInfo.cc
	
	Removed srandom and random.
	* src/SimpleRandomizer.h

	Added size() virtual function to DiskAdaptor
	* src/MultiDiskAdaptor.h

	Fixed the bug that causes that files are not opened correctly in
	multi-file torrent.
	* src/TorrentRequestInfo.cc
	* src/MultiDiskAdaptor.cc
	
	Added SHA256 support
	* src/messageDigest.cc
	* src/Xml2MetalinkProcessor.cc

	Show supported message digest algorithms
	* src/main.cc

	Updated contact info.
	* src/main.cc

test/FeatureConfigTest.cc

@@ -31,8 +31,13 @@ void FeatureConfigTest::testGetDefaultPort() {
 void FeatureConfigTest::testIsSupported() {
   CPPUNIT_ASSERT_EQUAL(true,
 		       FeatureConfig::getInstance()->isSupported("http"));
+#ifdef ENABLE_SSL
   CPPUNIT_ASSERT_EQUAL(true,
 		       FeatureConfig::getInstance()->isSupported("https"));
+#else
+  CPPUNIT_ASSERT_EQUAL(false,
+		       FeatureConfig::getInstance()->isSupported("https"));
+#endif // ENABLE_SSL
   CPPUNIT_ASSERT_EQUAL(true,
 		       FeatureConfig::getInstance()->isSupported("ftp"));
   CPPUNIT_ASSERT_EQUAL(false,
@@ -41,11 +46,32 @@ void FeatureConfigTest::testIsSupported() {
 
 void FeatureConfigTest::testGetConfigurationSummary() {
   CPPUNIT_ASSERT_EQUAL(string("http: yes\n")
+#ifdef ENABLE_SSL
 		       +"https: yes\n"
+#else
+		       +"https: no\n"
+#endif // ENABLE_SSL
 		       +"ftp: yes\n"
+#ifdef ENABLE_BITTORRENT
 		       +"bittorrent: yes\n"
+#else
+		       +"bittorrent: no\n"
+#endif // ENABLE_BITTORRENT
+#ifdef ENABLE_METALINK
 		       +"metalink: yes\n"
+#else
+		       +"metalink: no\n"
+#endif // ENABLE_METALINK
+#ifdef ENABLE_MESSAGE_DIGEST
 		       +"message digest: yes\n"
-		       +"async dns: yes\n",
+#else
+		       +"message digest: no\n"
+#endif // ENABLE_MESSAGE_DIGEST
+#ifdef ENABLE_ASYNC_DNS
+		       +"async dns: yes\n"
+#else
+		       +"async dns: no\n"
+#endif // ENABLE_ASYNC_DNS
+		       ,
 		       FeatureConfig::getInstance()->getConfigurationSummary());
 }