2008-09-07 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>

	Implmented the functions to parse date.
	* src/TimeA2.cc
	* src/TimeA2.h
	* test/TimeTest.cc

ChangeLog

@@ -1,3 +1,10 @@
+2008-09-07  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>
+
+	Implmented the functions to parse date.
+	* src/TimeA2.cc
+	* src/TimeA2.h
+	* test/TimeTest.cc
+
 2008-09-05  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>
 
 	Added "Firefox3 Cookie" feature to FeatureConfig

src/TimeA2.cc

@@ -35,6 +35,8 @@
 
 #include "TimeA2.h"
 #include "Util.h"
+#include "array_fun.h"
+#include <cstring>
 
 namespace aria2 {
 
@@ -136,4 +138,58 @@ void Time::setTimeInSec(time_t sec) {
   tv.tv_usec = 0;
 }
 
+bool Time::good() const
+{
+  return tv.tv_sec >= 0;
+}
+
+Time Time::parse(const std::string& datetime, const std::string& format)
+{
+  struct tm tm;
+  memset(&tm, 0, sizeof(tm));
+  char* r = strptime(datetime.c_str(), format.c_str(), &tm);
+  if(r != datetime.c_str()+datetime.size()) {
+    return Time(-1);
+  }
+  time_t thetime = timegm(&tm);
+  if(thetime == -1) {
+    if(tm.tm_year >= 2038-1900) {
+      thetime = INT32_MAX;
+    }
+  }
+  return Time(thetime);  
+}
+
+Time Time::parseRFC1123(const std::string& datetime)
+{
+  return parse(datetime, "%a, %d %b %Y %H:%M:%S GMT");
+}
+
+Time Time::parseRFC850(const std::string& datetime)
+{
+  return parse(datetime, "%a, %d-%b-%y %H:%M:%S GMT");
+}
+
+Time Time::parseRFC850Ext(const std::string& datetime)
+{
+  return parse(datetime, "%a, %d-%b-%Y %H:%M:%S GMT");
+}
+
+Time Time::parseHTTPDate(const std::string& datetime)
+{
+  Time (*funcs[])(const std::string&) = {
+    &parseRFC1123,
+    &parseRFC850Ext,
+    &parseRFC850,
+  };
+  for(Time (**funcsp)(const std::string&) = &funcs[0];
+      funcsp != &funcs[arrayLength(funcs)]; ++funcsp) {
+    Time t = (*funcsp)(datetime);
+    if(t.good()) {
+      return t;
+    }
+  }
+  return Time(-1);
+}
+	
 } // namespace aria2

src/TimeA2.h

@@ -38,6 +38,7 @@
 #include "common.h"
 #include "a2time.h"
 #include <stdint.h>
+#include <string>
 
 namespace aria2 {
 
@@ -85,6 +86,25 @@ public:
   void setTimeInSec(time_t sec);
 
   bool isNewer(const Time& time) const;
+
+  bool good() const;
+
+  // Currently timezone is assumed as GMT.
+  static Time parse(const std::string& datetime, const std::string& format);
+
+  // Currently timezone is assumed to GMT.
+  static Time parseRFC1123(const std::string& datetime);
+
+  // Currently timezone is assumed to GMT.
+  static Time parseRFC850(const std::string& datetime);
+
+  // Currently timezone is assumed to GMT.
+  // Basically the format is RFC850, but year part is 4digit, eg 2008
+  static Time parseRFC850Ext(const std::string& datetime);
+
+  // Try parseRFC1123, parseRFC850Ex, parseRFC850 in that order and returns
+  // the first "good" Time object returned by these functions.
+  static Time parseHTTPDate(const std::string& datetime);
 };
 
 } // namespace aria2

test/Makefile.am

@@ -60,7 +60,8 @@ aria2c_SOURCES = AllTest.cc\
 	NsCookieParserTest.cc\
 	DirectDiskAdaptorTest.cc\
 	CookieTest.cc\
-	CookieStorageTest.cc
+	CookieStorageTest.cc\
+	TimeTest.cc
 
 if HAVE_LIBZ
 aria2c_SOURCES += GZipDecoderTest.cc

test/Makefile.in

@@ -194,7 +194,7 @@ am__aria2c_SOURCES_DIST = AllTest.cc TestUtil.cc TestUtil.h \
 	ServerStatURISelectorTest.cc InOrderURISelectorTest.cc \
 	ServerStatTest.cc NsCookieParserTest.cc \
 	DirectDiskAdaptorTest.cc CookieTest.cc CookieStorageTest.cc \
-	GZipDecoderTest.cc Sqlite3MozCookieParserTest.cc \
+	TimeTest.cc GZipDecoderTest.cc Sqlite3MozCookieParserTest.cc \
 	MessageDigestHelperTest.cc \
 	IteratableChunkChecksumValidatorTest.cc \
 	IteratableChecksumValidatorTest.cc BtAllowedFastMessageTest.cc \
@@ -366,8 +366,8 @@ am_aria2c_OBJECTS = AllTest.$(OBJEXT) TestUtil.$(OBJEXT) \
 	InOrderURISelectorTest.$(OBJEXT) ServerStatTest.$(OBJEXT) \
 	NsCookieParserTest.$(OBJEXT) DirectDiskAdaptorTest.$(OBJEXT) \
 	CookieTest.$(OBJEXT) CookieStorageTest.$(OBJEXT) \
-	$(am__objects_1) $(am__objects_2) $(am__objects_3) \
-	$(am__objects_4) $(am__objects_5)
+	TimeTest.$(OBJEXT) $(am__objects_1) $(am__objects_2) \
+	$(am__objects_3) $(am__objects_4) $(am__objects_5)
 aria2c_OBJECTS = $(am_aria2c_OBJECTS)
 am__DEPENDENCIES_1 =
 aria2c_DEPENDENCIES = ../src/libaria2c.a $(am__DEPENDENCIES_1)
@@ -589,7 +589,7 @@ aria2c_SOURCES = AllTest.cc TestUtil.cc TestUtil.h SocketCoreTest.cc \
 	ServerStatURISelectorTest.cc InOrderURISelectorTest.cc \
 	ServerStatTest.cc NsCookieParserTest.cc \
 	DirectDiskAdaptorTest.cc CookieTest.cc CookieStorageTest.cc \
-	$(am__append_1) $(am__append_2) $(am__append_3) \
+	TimeTest.cc $(am__append_1) $(am__append_2) $(am__append_3) \
 	$(am__append_4) $(am__append_5)
 
 #aria2c_CXXFLAGS = ${CPPUNIT_CFLAGS} -I../src -I../lib -Wall -D_FILE_OFFSET_BITS=64
@@ -816,6 +816,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/TaggedItemTest.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/TestUtil.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/TimeSeedCriteriaTest.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/TimeTest.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/UTPexExtensionMessageTest.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/UriListParserTest.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/UtilTest.Po@am__quote@

test/TimeTest.cc

@@ -0,0 +1,65 @@
+#include "TimeA2.h"
+#include "Exception.h"
+#include "Util.h"
+#include <iostream>
+#include <cppunit/extensions/HelperMacros.h>
+
+namespace aria2 {
+
+class TimeTest:public CppUnit::TestFixture {
+
+  CPPUNIT_TEST_SUITE(TimeTest);
+  CPPUNIT_TEST(testParseRFC1123);
+  CPPUNIT_TEST(testParseRFC850);
+  CPPUNIT_TEST(testParseRFC850Ext);
+  CPPUNIT_TEST(testParseHTTPDate);
+  CPPUNIT_TEST_SUITE_END();
+public:
+  void setUp() {}
+
+  void tearDown() {}
+
+  void testParseRFC1123();
+  void testParseRFC850();
+  void testParseRFC850Ext();
+  void testParseHTTPDate();
+};
+
+
+CPPUNIT_TEST_SUITE_REGISTRATION(TimeTest);
+
+void TimeTest::testParseRFC1123()
+{
+  Time t1 = Time::parseRFC1123("Sat, 06 Sep 2008 15:26:33 GMT");
+  CPPUNIT_ASSERT_EQUAL((time_t)1220714793, t1.getTime());
+}
+
+void TimeTest::testParseRFC850()
+{
+  Time t1 = Time::parseRFC850("Saturday, 06-Sep-08 15:26:33 GMT");
+  CPPUNIT_ASSERT_EQUAL((time_t)1220714793, t1.getTime());
+}
+
+void TimeTest::testParseRFC850Ext()
+{
+  Time t1 = Time::parseRFC850Ext("Saturday, 06-Sep-2008 15:26:33 GMT");
+  CPPUNIT_ASSERT_EQUAL((time_t)1220714793, t1.getTime());
+}
+
+void TimeTest::testParseHTTPDate()
+{
+  CPPUNIT_ASSERT_EQUAL((time_t)1220714793,
+		       Time::parseHTTPDate
+		       ("Sat, 06 Sep 2008 15:26:33 GMT").getTime());
+  CPPUNIT_ASSERT_EQUAL((time_t)1220714793,
+		       Time::parseHTTPDate
+		       ("Sat, 06-Sep-2008 15:26:33 GMT").getTime());
+  CPPUNIT_ASSERT_EQUAL((time_t)1220714793,
+		       Time::parseHTTPDate
+		       ("Sat, 06-Sep-08 15:26:33 GMT").getTime());
+  CPPUNIT_ASSERT_EQUAL((time_t)-1,
+		       Time::parseHTTPDate
+		       ("Sat, 2008-09-06 15:26:33 GMT").getTime());
+}
+
+} // namespace aria2