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filesytem-based addressbook

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orignal 2014-11-26 16:19:36 -05:00
parent aca87b5fd1
commit fae01f61d2
2 changed files with 106 additions and 2 deletions
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94
AddressBook.cpp
View File

@ -1,23 +1,103 @@
#include <string.h>
#include <inttypes.h>
#include <string>
#include <map>
#include <fstream>
#include <boost/filesystem.hpp>
#include "base64.h"
#include "util.h"
#include "Identity.h"
#include "Log.h"
#include "AddressBook.h"
#include <boost/algorithm/string.hpp>
namespace i2p
{
namespace client
{
class AddressBookFilesystemStorage: public AddressBookStorage
{
public:
AddressBookFilesystemStorage ();
bool GetAddress (const i2p::data::IdentHash& ident, i2p::data::IdentityEx& address) const;
void AddAddress (const i2p::data::IdentityEx& address);
void RemoveAddress (const i2p::data::IdentHash& ident);
private:
boost::filesystem::path GetPath () const { return i2p::util::filesystem::GetDefaultDataDir() / "addressbook"; };
};
AddressBookFilesystemStorage::AddressBookFilesystemStorage ()
{
auto path = GetPath ();
if (!boost::filesystem::exists (path))
{
// Create directory is necessary
if (!boost::filesystem::create_directory (path))
LogPrint (eLogError, "Failed to create addressbook directory");
}
}
bool AddressBookFilesystemStorage::GetAddress (const i2p::data::IdentHash& ident, i2p::data::IdentityEx& address) const
{
auto filename = GetPath () / (ident.ToBase32() + ".b32");
std::ifstream f(filename.c_str (), std::ifstream::binary);
if (f.is_open ())
{
f.seekg (0,std::ios::end);
size_t len = f.tellg ();
if (len < i2p::data::DEFAULT_IDENTITY_SIZE)
{
LogPrint (eLogError, "File ", filename, " is too short. ", len);
return false;
}
f.seekg(0, std::ios::beg);
uint8_t * buf = new uint8_t[len];
f.read((char *)buf, len);
address.FromBuffer (buf, len);
delete[] buf;
return true;
}
else
return false;
}
void AddressBookFilesystemStorage::AddAddress (const i2p::data::IdentityEx& address)
{
auto filename = GetPath () / (address.GetIdentHash ().ToBase32() + ".b32");
std::ofstream f (filename.c_str (), std::ofstream::binary | std::ofstream::out);
if (f.is_open ())
{
size_t len = address.GetFullLen ();
uint8_t * buf = new uint8_t[len];
address.ToBuffer (buf, len);
f.write ((char *)buf, len);
delete[] buf;
}
else
LogPrint (eLogError, "Can't open file ", filename);
}
void AddressBookFilesystemStorage::RemoveAddress (const i2p::data::IdentHash& ident)
{
auto filename = GetPath () / (ident.ToBase32() + ".b32");
if (boost::filesystem::exists (filename))
boost::filesystem::remove (filename);
}
//---------------------------------------------------------------------
AddressBook::AddressBook (): m_IsLoaded (false), m_IsDowloading (false)
{
}
AddressBook::~AddressBook ()
{
delete m_Storage;
}
bool AddressBook::GetIdentHash (const std::string& address, i2p::data::IdentHash& ident)
{
auto pos = address.find(".b32.i2p");
@ -59,10 +139,20 @@ namespace client
{
i2p::data::IdentityEx ident;
ident.FromBase64 (base64);
if (m_Storage) m_Storage->AddAddress (ident);
m_Addresses[address] = ident.GetIdentHash ();
LogPrint (address,"->",ident.GetIdentHash ().ToBase32 (), ".b32.i2p added");
}
bool AddressBook::GetAddress (const std::string& address, i2p::data::IdentityEx& identity)
{
if (!m_Storage)
m_Storage = new AddressBookFilesystemStorage ();
auto ident = FindAddress (address);
if (!ident) return false;
return m_Storage->GetAddress (*ident, identity);
}
void AddressBook::LoadHostsFromI2P ()
{
std::string content;

14
AddressBook.h
View File

@ -13,14 +13,27 @@ namespace i2p
{
namespace client
{
class AddressBookStorage // interface for storage
{
public:
virtual ~AddressBookStorage () {};
virtual bool GetAddress (const i2p::data::IdentHash& ident, i2p::data::IdentityEx& address) const = 0;
virtual void AddAddress (const i2p::data::IdentityEx& address) = 0;
virtual void RemoveAddress (const i2p::data::IdentHash& ident) = 0;
};
class AddressBook
{
public:
AddressBook ();
~AddressBook ();
bool GetIdentHash (const std::string& address, i2p::data::IdentHash& ident);
bool GetAddress (const std::string& address, i2p::data::IdentityEx& identity);
const i2p::data::IdentHash * FindAddress (const std::string& address);
void InsertAddress (const std::string& address, const std::string& base64); // for jump service
private:
@ -28,6 +41,7 @@ namespace client
void LoadHostsFromI2P ();
std::map<std::string, i2p::data::IdentHash> m_Addresses;
AddressBookStorage * m_Storage;
bool m_IsLoaded, m_IsDowloading;
};
}