split AddressBook header/source

AddressBook.cpp

@@ -0,0 +1,62 @@
+#include <string.h>
+#include <string>
+#include <map>
+#include "base64.h"
+#include "util.h"
+#include "Identity.h"
+#include "Log.h"
+#include "AddressBook.h"
+
+namespace i2p
+{
+namespace data
+{
+
+AddressBook::AddressBook (): m_IsLoaded (false)
+{
+}
+
+	
+const IdentHash * AddressBook::FindAddress (const std::string& address)
+{
+	if (!m_IsLoaded)
+		LoadHosts ();
+	auto it = m_Addresses.find (address);
+	if (it != m_Addresses.end ())
+		return &it->second;
+	else
+		return nullptr;	
+}
+		
+
+void AddressBook::LoadHosts ()
+{
+	m_IsLoaded = true;
+	std::ifstream f (i2p::util::filesystem::GetFullPath ("hosts.txt").c_str (), std::ofstream::in); // in text mode
+	if (!f.is_open ())	
+	{
+		LogPrint ("hosts.txt not found");
+		return;
+	}
+	int numAddresses = 0;
+	char str[1024];
+	while (!f.eof ())
+	{
+		f.getline (str, 1024);
+		char * key = strchr (str, '=');
+		if (key)
+		{
+			*key = 0;
+			key++;
+			Identity ident;
+			Base64ToByteStream (key, strlen(key), (uint8_t *)&ident, sizeof (ident));
+			m_Addresses[str] = CalculateIdentHash (ident);	
+			numAddresses++;
+		}		
+	}
+	LogPrint (numAddresses, " addresses loaded");
+}
+
+}
+}
+