I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#ifndef ADDRESS_BOOK_H__
#define ADDRESS_BOOK_H__
#include <string.h>
#include <string>
#include <map>
#include <list>
#include <iostream>
#include <mutex>
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#include "base64.h"
#include "util.h"
#include "Identity.h"
#include "Log.h"
namespace i2p
{
namespace client
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{
const char DEFAULT_SUBSCRIPTION_ADDRESS[] = "http://udhdrtrcetjm5sxzskjyr5ztpeszydbh4dpl3pl4utgqqw2v4jna.b32.i2p/hosts.txt";
// TODO: move http fields to common http code
const char HTTP_FIELD_ETAG[] = "ETag";
const char HTTP_FIELD_IF_MODIFIED_SINCE[] = "If-Modified-Since";
const char HTTP_FIELD_LAST_MODIFIED[] = "Last-Modified";
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;
virtual int Load (std::map<std::string, i2p::data::IdentHash>& addresses) = 0;
virtual int Save (const std::map<std::string, i2p::data::IdentHash>& addresses) = 0;
};
class AddressBookSubscription;
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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);
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void InsertAddress (const std::string& address, const std::string& base64); // for jump service
void InsertAddress (const i2p::data::IdentityEx& address);
void LoadHostsFromStream (std::istream& f);
void SetIsDownloading (bool isDownloading) { m_IsDownloading = isDownloading; };
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private:
AddressBookStorage * CreateStorage ();
void LoadHosts ();
void LoadSubscriptions ();
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private:
std::mutex m_AddressBookMutex;
std::map<std::string, i2p::data::IdentHash> m_Addresses;
AddressBookStorage * m_Storage;
volatile bool m_IsLoaded, m_IsDownloading;
std::list<AddressBookSubscription *> m_Subscriptions;
AddressBookSubscription * m_DefaultSubscription; // in case if we don't know any addresses yet
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};
class AddressBookSubscription
{
public:
AddressBookSubscription (AddressBook& book, const std::string& link);
void CheckSubscription ();
private:
void Request ();
private:
AddressBook& m_Book;
std::string m_Link, m_Etag, m_LastModified;
};
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}
}
#endif