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fixed #1424. Check if .b32.i2p address string is valid

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orignal 2019-09-23 13:42:15 -04:00
parent d6b1d0d4fb
commit c2f47119ce
4 changed files with 15 additions and 7 deletions
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3
libi2pd/Blinding.cpp
View File

@ -141,7 +141,8 @@ namespace data
m_BlindedSigType = m_SigType;
}
BlindedPublicKey::BlindedPublicKey (const std::string& b33)
BlindedPublicKey::BlindedPublicKey (const std::string& b33):
m_SigType (0) // 0 means invalid, we can't blind DSA, set it later
{
uint8_t addr[40]; // TODO: define length from b33
size_t l = i2p::data::Base32ToByteStream (b33.c_str (), b33.length (), addr, 40);

1
libi2pd/Blinding.h
View File

@ -22,6 +22,7 @@ namespace data
size_t GetPublicKeyLen () const { return m_PublicKey.size (); };
SigningKeyType GetSigType () const { return m_SigType; };
SigningKeyType GetBlindedSigType () const { return m_BlindedSigType; };
bool IsValid () const { return GetSigType (); }; // signature type 0 means invalid
void GetSubcredential (const uint8_t * blinded, size_t len, uint8_t * subcredential) const; // 32 bytes
size_t GetBlindedKey (const char * date, uint8_t * blindedKey) const; // date is 8 chars "YYYYMMDD", return public key length

15
libi2pd_client/AddressBook.cpp
View File

@ -237,17 +237,19 @@ namespace client
//---------------------------------------------------------------------
Address::Address (const std::string& b32)
Address::Address (const std::string& b32):
addressType (eAddressInvalid)
{
if (b32.length () <= B33_ADDRESS_THRESHOLD)
{
addressType = eAddressIndentHash;
identHash.FromBase32 (b32);
if (identHash.FromBase32 (b32) > 0)
addressType = eAddressIndentHash;
}
else
{
addressType = eAddressBlindedPublicKey;
blindedPublicKey = std::make_shared<i2p::data::BlindedPublicKey>(b32);
if (blindedPublicKey->IsValid ())
addressType = eAddressBlindedPublicKey;
}
}
@ -320,7 +322,10 @@ namespace client
{
auto pos = address.find(".b32.i2p");
if (pos != std::string::npos)
return std::make_shared<const Address>(address.substr (0, pos));
{
auto addr = std::make_shared<const Address>(address.substr (0, pos));
return addr->IsValid () ? addr : nullptr;
}
else
{
pos = address.find (".i2p");

3
libi2pd_client/AddressBook.h
View File

@ -33,13 +33,14 @@ namespace client
struct Address
{
enum { eAddressIndentHash, eAddressBlindedPublicKey } addressType;
enum { eAddressIndentHash, eAddressBlindedPublicKey, eAddressInvalid } addressType;
i2p::data::IdentHash identHash;
std::shared_ptr<i2p::data::BlindedPublicKey> blindedPublicKey;
Address (const std::string& b32);
Address (const i2p::data::IdentHash& hash);
bool IsIdentHash () const { return addressType == eAddressIndentHash; };
bool IsValid () const { return addressType != eAddressInvalid; };
};
inline std::string GetB32Address(const i2p::data::IdentHash& ident) { return ident.ToBase32().append(".b32.i2p"); }