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c595d52fb8e7b6c194012cb1c47ea4fdabbbfaa2
winscp/source/core/PuttyIntf.cpp
Martin Prikryl cc81f2c3fc Updating code to PuTTY 0.84 
Source commit: 71b0bdd5bb7ff22e916234fffeedf5db87668460
2026-05-30 01:07:44 +02:00

1636 lines
50 KiB
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//---------------------------------------------------------------------------
#include <CorePCH.h>
#pragma hdrstop
#include "PuttyIntf.h"
#include "SecureShell.h"
#include "Exceptions.h"
#include <Soap.EncdDecd.hpp>
//---------------------------------------------------------------------------
char sshver[50];
extern const char commitid[] = "";
const bool platform_uses_x11_unix_by_default = true;
CRITICAL_SECTION putty_section;
static bool SaveRandomSeed;
static bool HadRandomSeed;
static char appname_[50];
const char *const appname = appname_;
extern const bool share_can_be_downstream = false;
extern const bool share_can_be_upstream = false;
//---------------------------------------------------------------------------
extern "C"
{
#include <windows\platform.h>
}
const UnicodeString OriginalPuttyRegistryStorageKey(_T(PUTTY_REG_POS));
const UnicodeString KittyRegistryStorageKey(L"Software\\9bis.com\\KiTTY");
const UnicodeString OriginalPuttyExecutable("putty.exe");
const UnicodeString KittyExecutable("kitty.exe");
const UnicodeString PuttyKeyExt(L"ppk");
//---------------------------------------------------------------------------
void __fastcall PuttyInitialize()
{
SaveRandomSeed = true;
InitializeCriticalSection(&putty_section);
HadRandomSeed = FileExists(ApiPath(Configuration->RandomSeedFileName));
if (HadRandomSeed)
{
AppLog(L"Random seed file exists");
}
// make sure random generator is initialised, so random_save_seed()
// in destructor can proceed
random_ref();
sk_init();
AnsiString VersionString = AnsiString(SshVersionString());
DebugAssert(!VersionString.IsEmpty() && (static_cast<size_t>(VersionString.Length()) < std::size(sshver)));
strcpy(sshver, VersionString.c_str());
AnsiString AppName = AnsiString(AppNameString());
DebugAssert(!AppName.IsEmpty() && (static_cast<size_t>(AppName.Length()) < std::size(appname_)));
strcpy(appname_, AppName.c_str());
}
//---------------------------------------------------------------------------
static bool DeleteRandomSeedOnExit()
{
return !HadRandomSeed && !SaveRandomSeed;
}
//---------------------------------------------------------------------------
void __fastcall PuttyFinalize()
{
if (SaveRandomSeed)
{
AppLog(L"Saving random seed file");
random_save_seed();
}
random_unref();
// random_ref in PuttyInitialize creates the seed file. Delete it, if we didn't want to create it.
if (DeleteRandomSeedOnExit())
{
AppLog(L"Deleting unwanted random seed file");
DeleteFile(ApiPath(Configuration->RandomSeedFileName));
}
sk_cleanup();
win_misc_cleanup();
win_secur_cleanup();
ec_cleanup();
wingss_cleanup();
DeleteCriticalSection(&putty_section);
}
//---------------------------------------------------------------------------
void __fastcall DontSaveRandomSeed()
{
SaveRandomSeed = false;
}
//---------------------------------------------------------------------------
bool RandomSeedExists()
{
return
!DeleteRandomSeedOnExit() &&
FileExists(ApiPath(Configuration->RandomSeedFileName));
}
//---------------------------------------------------------------------------
TSecureShell * GetSeatSecureShell(Seat * seat)
{
DebugAssert(seat != NULL);
if (is_tempseat(seat))
{
seat = tempseat_get_real(seat);
}
TSecureShell * SecureShell = static_cast<ScpSeat *>(seat)->SecureShell;
return SecureShell;
}
//---------------------------------------------------------------------------
TSecureShell * GetSecureShell(Plug * plug, bool & pfwd)
{
if (!is_ssh(plug) && !is_pfwd(plug))
{
// If it is not SSH/PFwd plug, then it must be Proxy plug.
// Get SSH/PFwd plug which it wraps.
ProxySocket * AProxySocket = get_proxy_plug_socket(plug);
plug = AProxySocket->plug;
}
pfwd = is_pfwd(plug);
Seat * seat;
if (pfwd)
{
seat = get_pfwd_seat(plug);
}
else
{
seat = get_ssh_seat(plug);
}
DebugAssert(seat != NULL);
return GetSeatSecureShell(seat);
}
//---------------------------------------------------------------------------
struct callback_set * get_callback_set(Plug * plug)
{
bool pfwd;
TSecureShell * SecureShell = GetSecureShell(plug, pfwd);
return SecureShell->GetCallbackSet();
}
//---------------------------------------------------------------------------
struct callback_set * get_seat_callback_set(Seat * seat)
{
TSecureShell * SecureShell = GetSeatSecureShell(seat);
return SecureShell->GetCallbackSet();
}
//---------------------------------------------------------------------------
extern "C" const char * do_select(Plug * plug, SOCKET skt, bool enable)
{
bool pfwd;
TSecureShell * SecureShell = GetSecureShell(plug, pfwd);
if (!pfwd)
{
SecureShell->UpdateSocket(skt, enable);
}
else
{
SecureShell->UpdatePortFwdSocket(skt, enable);
}
return NULL;
}
//---------------------------------------------------------------------------
static size_t output(Seat * seat, SeatOutputType type, const void * data, size_t len)
{
TSecureShell * SecureShell = static_cast<ScpSeat *>(seat)->SecureShell;
if (static_cast<int>(static_cast<char>(type)) == -1)
{
SecureShell->CWrite(reinterpret_cast<const char *>(data), len);
}
else if (type != SEAT_OUTPUT_STDERR)
{
SecureShell->FromBackend(reinterpret_cast<const unsigned char *>(data), len);
}
else
{
SecureShell->AddStdError(reinterpret_cast<const char *>(data), len);
}
return 0;
}
//---------------------------------------------------------------------------
static bool eof(Seat *)
{
return false;
}
//---------------------------------------------------------------------------
static SeatPromptResult get_userpass_input(Seat * seat, prompts_t * p)
{
DebugAssert(p != NULL);
TSecureShell * SecureShell = static_cast<ScpSeat *>(seat)->SecureShell;
DebugAssert(SecureShell != NULL);
SeatPromptResult Result;
TStrings * Prompts = new TStringList();
TStrings * Results = new TStringList();
try
{
UnicodeString Name = UTF8ToString(p->name);
for (int Index = 0; Index < int(p->n_prompts); Index++)
{
prompt_t * Prompt = p->prompts[Index];
UnicodeString S;
if (p->utf8)
{
S = UTF8ToString(Prompt->prompt);
}
else
{
S = UnicodeString(AnsiString(Prompt->prompt));
}
Prompts->AddObject(S, reinterpret_cast<TObject *>(FLAGMASK(Prompt->echo, pupEcho)));
// this fails, when new passwords do not match on change password prompt,
// and putty retries the prompt
DebugAssert(strlen(prompt_get_result_ref(Prompt)) == 0);
Results->Add(L"");
}
UnicodeString Instructions = UTF8ToString(p->instruction);
if (SecureShell->PromptUser(p->to_server, Name, p->name_reqd,
Instructions, p->instr_reqd, Prompts, Results))
{
for (int Index = 0; Index < int(p->n_prompts); Index++)
{
prompt_t * Prompt = p->prompts[Index];
RawByteString S;
if (p->utf8)
{
S = RawByteString(UTF8String(Results->Strings[Index]));
}
else
{
S = RawByteString(AnsiString(Results->Strings[Index]));
}
prompt_set_result(Prompt, S.c_str());
}
Result = SPR_OK;
}
else
{
Result = SPR_USER_ABORT;
}
}
__finally
{
delete Prompts;
delete Results;
}
return Result;
}
//---------------------------------------------------------------------------
static void connection_fatal(Seat * seat, const char * message)
{
TSecureShell * SecureShell = static_cast<ScpSeat *>(seat)->SecureShell;
SecureShell->PuttyFatalError(UnicodeString(AnsiString(message)));
}
//---------------------------------------------------------------------------
static void nonfatal(Seat *, const char * message)
{
// there's no place in our putty code, where this is called
DebugFail();
AppLog(UnicodeString(AnsiString(message)));
}
//---------------------------------------------------------------------------
SeatPromptResult confirm_ssh_host_key(Seat * seat, const char * host, int port, const char * keytype,
char * keystr, SeatDialogText *, HelpCtx,
void (*DebugUsedArg(callback))(void *ctx, SeatPromptResult result), void * DebugUsedArg(ctx),
char **key_fingerprints, bool is_certificate, int ca_count, bool already_verified)
{
UnicodeString FingerprintSHA256, FingerprintMD5;
if (key_fingerprints[SSH_FPTYPE_SHA256] != NULL)
{
FingerprintSHA256 = key_fingerprints[SSH_FPTYPE_SHA256];
}
if (DebugAlwaysTrue(key_fingerprints[SSH_FPTYPE_MD5] != NULL))
{
FingerprintMD5 = key_fingerprints[SSH_FPTYPE_MD5];
}
TSecureShell * SecureShell = static_cast<ScpSeat *>(seat)->SecureShell;
SecureShell->VerifyHostKey(
host, port, keytype, keystr, FingerprintSHA256, FingerprintMD5, is_certificate, ca_count, already_verified);
// We should return 0 when key was not confirmed, we throw exception instead.
return SPR_OK;
}
//---------------------------------------------------------------------------
bool have_ssh_host_key(Seat * seat, const char * hostname, int port,
const char * keytype)
{
TSecureShell * SecureShell = static_cast<ScpSeat *>(seat)->SecureShell;
return SecureShell->HaveHostKey(hostname, port, keytype) ? 1 : 0;
}
//---------------------------------------------------------------------------
SeatPromptResult confirm_weak_crypto_primitive(
Seat * seat, SeatDialogText *,
void (*DebugUsedArg(callback))(void * ctx, SeatPromptResult result), void * DebugUsedArg(ctx),
const char * algtype, const char *algname, int wcr)
{
TSecureShell * SecureShell = static_cast<ScpSeat *>(seat)->SecureShell;
SecureShell->AskAlg(algtype, algname, wcr);
// We should return 0 when alg was not confirmed, we throw exception instead.
return SPR_OK;
}
//---------------------------------------------------------------------------
SeatPromptResult confirm_weak_cached_hostkey(
Seat *, SeatDialogText *,
void (*DebugUsedArg(callback))(void * ctx, SeatPromptResult result), void * DebugUsedArg(ctx))
{
return SPR_OK;
}
//---------------------------------------------------------------------------
const SeatDialogPromptDescriptions * prompt_descriptions(Seat *)
{
static const SeatDialogPromptDescriptions descs = {
/*.hk_accept_action =*/ "",
/*.hk_connect_once_action =*/ "",
/*.hk_cancel_action =*/ "",
/*.hk_cancel_action_Participle =*/ "",
NULL, NULL,
};
return &descs;
}
//---------------------------------------------------------------------------
void old_keyfile_warning(void)
{
// no reference to TSecureShell instance available - and we already warn on Login dialog
}
//---------------------------------------------------------------------------
size_t banner(Seat * seat, const void * data, size_t len)
{
TSecureShell * SecureShell = static_cast<ScpSeat *>(seat)->SecureShell;
UnicodeString Banner(UTF8String(static_cast<const char *>(data), SizeToIntChecked(len)));
SecureShell->DisplayBanner(Banner);
return 0; // PuTTY never uses the value
}
//---------------------------------------------------------------------------
NORETURN static void SSHFatalError(const char * Format, va_list Param)
{
char Buf[200];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wformat-nonliteral"
vsnprintf(Buf, std::size(Buf), Format, Param);
#pragma clang diagnostic pop
Buf[std::size(Buf) - 1] = '\0';
// Only few calls from putty\winnet.c might be connected with specific
// TSecureShell. Otherwise called only for really fatal errors
// like 'out of memory' from putty\ssh.c.
throw ESshFatal(NULL, Buf);
}
//---------------------------------------------------------------------------
void modalfatalbox(const char * fmt, ...)
{
va_list Param;
va_start(Param, fmt);
SSHFatalError(fmt, Param);
va_end(Param);
}
//---------------------------------------------------------------------------
void nonfatal(const char * fmt, ...)
{
va_list Param;
va_start(Param, fmt);
SSHFatalError(fmt, Param);
va_end(Param);
}
//---------------------------------------------------------------------------
void ldisc_echoedit_update(Ldisc * /*handle*/)
{
DebugFail();
}
//---------------------------------------------------------------------------
unsigned long schedule_timer(int ticks, timer_fn_t /*fn*/, void * /*ctx*/)
{
return ticks + GetTickCount();
}
//---------------------------------------------------------------------------
void expire_timer_context(void * /*ctx*/)
{
// nothing
}
//---------------------------------------------------------------------------
Pinger * pinger_new(Conf * /*conf*/, Backend * /*back*/)
{
return NULL;
}
//---------------------------------------------------------------------------
void pinger_reconfig(Pinger * /*pinger*/, Conf * /*oldconf*/, Conf * /*newconf*/)
{
// nothing
}
//---------------------------------------------------------------------------
void pinger_free(Pinger * /*pinger*/)
{
// nothing
}
//---------------------------------------------------------------------------
void platform_get_x11_auth(struct X11Display * /*display*/, Conf * /*conf*/)
{
// nothing, therefore no auth.
}
//---------------------------------------------------------------------------
// Based on PuTTY's settings.c
char * get_remote_username(Conf * conf)
{
char * username = conf_get_str(conf, CONF_username);
char * result;
if (*username)
{
result = dupstr(username);
}
else
{
result = NULL;
}
return result;
}
//---------------------------------------------------------------------------
static const SeatVtable ScpSeatVtable =
{
output,
eof,
nullseat_sent,
banner,
get_userpass_input,
nullseat_notify_session_started,
nullseat_notify_remote_exit,
nullseat_notify_remote_disconnect,
connection_fatal,
nonfatal,
nullseat_update_specials_menu,
nullseat_get_ttymode,
nullseat_set_busy_status,
confirm_ssh_host_key,
confirm_weak_crypto_primitive,
confirm_weak_cached_hostkey,
prompt_descriptions,
nullseat_is_always_utf8,
nullseat_echoedit_update,
nullseat_get_display,
nullseat_get_windowid,
nullseat_get_window_pixel_size,
nullseat_stripctrl_new,
nullseat_set_trust_status,
nullseat_can_set_trust_status_yes,
nullseat_has_mixed_input_stream_yes,
nullseat_verbose_yes,
nullseat_interactive_no,
nullseat_get_cursor_position,
};
//---------------------------------------------------------------------------
ScpSeat::ScpSeat(TSecureShell * ASecureShell)
{
SecureShell = ASecureShell;
vt = &ScpSeatVtable;
}
//---------------------------------------------------------------------------
std::unique_ptr<TCriticalSection> PuttyStorageSection(TraceInitPtr(new TCriticalSection()));
THierarchicalStorage * PuttyStorage = NULL;
enum TPuttyRegistryMode { prmPass, prmRedirect, prmCollect, prmFail };
static TPuttyRegistryMode PuttyRegistryMode = prmRedirect;
typedef std::map<UnicodeString, unsigned long> TPuttyRegistryTypes;
static TPuttyRegistryTypes PuttyRegistryTypes;
static HKEY RandSeedFileStorage = reinterpret_cast<HKEY>(1);
//---------------------------------------------------------------------------
int reg_override_winscp()
{
return (PuttyRegistryMode != prmPass);
}
//---------------------------------------------------------------------------
void putty_registry_pass(bool enable)
{
if (enable)
{
PuttyStorageSection->Enter();
DebugAssert(PuttyRegistryMode == prmRedirect);
PuttyRegistryMode = prmPass;
}
else
{
DebugAssert(PuttyRegistryMode == prmPass);
PuttyRegistryMode = prmRedirect;
PuttyStorageSection->Leave();
}
}
//---------------------------------------------------------------------------
HKEY open_regkey_fn_winscp(bool Create, bool Write, HKEY Key, const char * Path, ...)
{
DebugUsedParam(Write);
HKEY Result;
if (PuttyRegistryMode == prmCollect)
{
// Note that for prmCollect even !Write mode is supported (behaving like prmFail) - needed for do_defaults
Result = reinterpret_cast<HKEY>(1);
}
else if (PuttyRegistryMode == prmFail)
{
Result = reinterpret_cast<HKEY>(false);
}
else if (PuttyRegistryMode == prmRedirect)
{
DebugAssert(Key == HKEY_CURRENT_USER);
DebugUsedParam(Key);
UnicodeString SubKey;
va_list ap;
va_start(ap, Path);
for (; Path; Path = va_arg(ap, const char *))
{
if (!SubKey.IsEmpty())
{
SubKey = IncludeTrailingBackslash(SubKey);
}
SubKey += UnicodeString(UTF8String(Path));
}
int PuttyKeyLen = OriginalPuttyRegistryStorageKey.Length();
DebugAssert(SubKey.SubString(1, PuttyKeyLen) == OriginalPuttyRegistryStorageKey);
UnicodeString RegKey = SubKey.SubString(PuttyKeyLen + 1, SubKey.Length() - PuttyKeyLen);
if (!RegKey.IsEmpty())
{
DebugAssert(RegKey[1] == L'\\');
RegKey.Delete(1, 1);
}
if (RegKey.IsEmpty())
{
// Called from access_random_seed()
Result = RandSeedFileStorage;
}
else
{
// we expect this to be called only from retrieve_host_key() or store_host_key()
DebugAssert(RegKey == L"SshHostKeys");
DebugAssert(PuttyStorage != NULL);
DebugAssert(PuttyStorage->AccessMode == (Write ? smReadWrite : smRead));
if (PuttyStorage->OpenSubKey(RegKey, Create))
{
Result = reinterpret_cast<HKEY>(PuttyStorage);
}
else
{
Result = NULL;
}
}
}
else
{
DebugFail();
Result = NULL;
}
return Result;
}
//---------------------------------------------------------------------------
bool get_reg_dword_winscp(HKEY, const char * DebugUsedArg(Name), DWORD * DebugUsedArg(Out))
{
bool Result;
if (PuttyRegistryMode == prmFail)
{
Result = false;
}
else if (PuttyRegistryMode == prmCollect)
{
Result = false;
}
else
{
DebugFail();
Result = false;
}
return Result;
}
//---------------------------------------------------------------------------
char * get_reg_sz_winscp(HKEY Key, const char * Name)
{
char * Result;
if (PuttyRegistryMode == prmCollect)
{
Result = NULL;
}
else if (DebugAlwaysTrue(PuttyRegistryMode == prmRedirect))
{
DebugAssert(Configuration != NULL);
UnicodeString ValueName = UTF8String(Name);
bool Success;
UnicodeString Value;
if (Key == RandSeedFileStorage)
{
if (ValueName == L"RandSeedFile")
{
Value = Configuration->RandomSeedFileName;
Success = true;
}
else
{
DebugFail();
Success = false;
}
}
else
{
THierarchicalStorage * Storage = reinterpret_cast<THierarchicalStorage *>(Key);
if (Storage->ValueExists(ValueName))
{
Value = Storage->ReadStringRaw(ValueName, L"");
Success = true;
}
else
{
Success = false;
}
}
if (!Success)
{
Result = NULL;
}
else
{
AnsiString ValueAnsi = AnsiString(Value);
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wold-style-cast"
Result = snewn(ValueAnsi.Length() + 1, char);
#pragma clang diagnostic pop
strcpy(Result, ValueAnsi.c_str());
}
}
else
{
Result = NULL;
}
return Result;
}
//---------------------------------------------------------------------------
bool put_reg_dword_winscp(HKEY DebugUsedArg(Key), const char * Name, DWORD DebugUsedArg(Value))
{
bool Result;
if (PuttyRegistryMode == prmCollect)
{
UnicodeString ValueName = UTF8String(Name);
PuttyRegistryTypes[ValueName] = REG_DWORD;
Result = true;
}
else if (PuttyRegistryMode == prmRedirect)
{
// Might need to implement this for CA
DebugFail();
Result = false;
}
else
{
DebugFail();
return false;
}
return Result;
}
//---------------------------------------------------------------------------
bool put_reg_sz_winscp(HKEY Key, const char * Name, const char * Str)
{
UnicodeString ValueName = UTF8String(Name);
bool Result;
if (PuttyRegistryMode == prmCollect)
{
PuttyRegistryTypes[ValueName] = REG_SZ;
Result = true;
}
else if (PuttyRegistryMode == prmRedirect)
{
UnicodeString Value = UTF8String(Str);
DebugAssert(Key != RandSeedFileStorage);
THierarchicalStorage * Storage = reinterpret_cast<THierarchicalStorage *>(Key);
DebugAssert(Storage != NULL);
if (Storage != NULL)
{
Storage->WriteStringRaw(ValueName, Value);
}
Result = true;
}
else
{
DebugFail();
Result = false;
}
return Result;
}
//---------------------------------------------------------------------------
void close_regkey_winscp(HKEY)
{
DebugAssert((PuttyRegistryMode == prmCollect) || (PuttyRegistryMode == prmRedirect));
}
//---------------------------------------------------------------------------
strbuf * get_reg_multi_sz_winscp(HKEY, const char * DebugUsedArg(name))
{
// Needed for CA
DebugFail();
return NULL;
}
//---------------------------------------------------------------------------
TKeyType KeyType(UnicodeString FileName)
{
DebugAssert(ktUnopenable == SSH_KEYTYPE_UNOPENABLE);
DebugAssert(ktSSHCom == SSH_KEYTYPE_SSHCOM);
DebugAssert(ktSSH2PublicOpenSSH == SSH_KEYTYPE_SSH2_PUBLIC_OPENSSH);
UTF8String UtfFileName = UTF8String(FileName);
Filename * KeyFile = filename_from_utf8(UtfFileName.c_str());
TKeyType Result = static_cast<TKeyType>(key_type(KeyFile));
filename_free(KeyFile);
return Result;
}
//---------------------------------------------------------------------------
bool IsKeyEncrypted(TKeyType KeyType, const UnicodeString & FileName, UnicodeString & Comment)
{
UTF8String UtfFileName = UTF8String(FileName);
bool Result;
char * CommentStr = NULL;
Filename * KeyFile = filename_from_utf8(UtfFileName.c_str());
try
{
switch (KeyType)
{
case ktSSH2:
Result = (ppk_encrypted_f(KeyFile, &CommentStr) != 0);
break;
case ktOpenSSHPEM:
case ktOpenSSHNew:
case ktSSHCom:
Result = (import_encrypted(KeyFile, KeyType, &CommentStr) != NULL);
break;
default:
DebugFail();
Result = false;
break;
}
}
__finally
{
filename_free(KeyFile);
}
if (CommentStr != NULL)
{
Comment = UnicodeString(AnsiString(CommentStr));
// ktOpenSSH has no comment, PuTTY defaults to file path
if (Comment == FileName)
{
Comment = ExtractFileName(FileName);
}
sfree(CommentStr);
}
return Result;
}
//---------------------------------------------------------------------------
TPrivateKey * LoadKey(TKeyType KeyType, const UnicodeString & FileName, const UnicodeString & Passphrase, UnicodeString & Error)
{
UTF8String UtfFileName = UTF8String(FileName);
Filename * KeyFile = filename_from_utf8(UtfFileName.c_str());
struct ssh2_userkey * Ssh2Key = NULL;
const char * ErrorStr = NULL;
AnsiString AnsiPassphrase = Passphrase;
try
{
switch (KeyType)
{
case ktSSH2:
Ssh2Key = ppk_load_f(KeyFile, AnsiPassphrase.c_str(), &ErrorStr);
break;
case ktOpenSSHPEM:
case ktOpenSSHNew:
case ktSSHCom:
Ssh2Key = import_ssh2(KeyFile, KeyType, AnsiPassphrase.c_str(), &ErrorStr);
break;
default:
DebugFail();
break;
}
}
__finally
{
Shred(AnsiPassphrase);
filename_free(KeyFile);
}
if (Ssh2Key == NULL)
{
// While theoretically we may get "unable to open key file" and
// so we should check system error code,
// we actually never get here unless we call KeyType previously
// and handle ktUnopenable accordingly.
Error = AnsiString(ErrorStr);
}
else if (Ssh2Key == SSH2_WRONG_PASSPHRASE)
{
Error = EmptyStr;
Ssh2Key = NULL;
}
return reinterpret_cast<TPrivateKey *>(Ssh2Key);
}
//---------------------------------------------------------------------------
TPrivateKey * LoadKey(TKeyType KeyType, const UnicodeString & FileName, const UnicodeString & Passphrase)
{
UnicodeString Error;
TPrivateKey * Result = LoadKey(KeyType, FileName, Passphrase, Error);
if (Result == NULL)
{
if (!Error.IsEmpty())
{
throw Exception(Error);
}
else
{
throw Exception(LoadStr(AUTH_TRANSL_WRONG_PASSPHRASE));
}
}
return Result;
}
//---------------------------------------------------------------------------
UnicodeString TestKey(TKeyType KeyType, const UnicodeString & FileName)
{
UnicodeString Result;
TPrivateKey * Key = LoadKey(KeyType, FileName, EmptyStr, Result);
if (Key != NULL)
{
FreeKey(Key);
}
return Result;
}
//---------------------------------------------------------------------------
void ChangeKeyComment(TPrivateKey * PrivateKey, const UnicodeString & Comment)
{
AnsiString AnsiComment(Comment);
struct ssh2_userkey * Ssh2Key = reinterpret_cast<struct ssh2_userkey *>(PrivateKey);
sfree(Ssh2Key->comment);
Ssh2Key->comment = dupstr(AnsiComment.c_str());
}
//---------------------------------------------------------------------------
// Based on cmdgen.c
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wold-style-cast"
void AddCertificateToKey(TPrivateKey * PrivateKey, const UnicodeString & CertificateFileName)
{
struct ssh2_userkey * Ssh2Key = reinterpret_cast<struct ssh2_userkey *>(PrivateKey);
TKeyType Type = KeyType(CertificateFileName);
int Error = errno;
if ((Type != SSH_KEYTYPE_SSH2_PUBLIC_RFC4716) &&
(Type != SSH_KEYTYPE_SSH2_PUBLIC_OPENSSH))
{
if (Type == ktUnopenable)
{
throw EOSExtException(FMTLOAD(CERTIFICATE_UNOPENABLE, (CertificateFileName)), Error);
}
else
{
throw Exception(FMTLOAD(KEYGEN_NOT_PUBLIC, (CertificateFileName)));
}
}
UTF8String UtfCertificateFileName = UTF8String(CertificateFileName);
Filename * CertFilename = filename_from_utf8(UtfCertificateFileName.c_str());
LoadedFile * CertLoadedFile;
try
{
const char * ErrorStr = NULL;
CertLoadedFile = lf_load_keyfile(CertFilename, &ErrorStr);
if (CertLoadedFile == NULL)
{
// not capturing errno, as this in unlikely file access error, after we have passed KeyType above
throw ExtException(FMTLOAD(CERTIFICATE_UNOPENABLE, (CertificateFileName)), Error);
}
}
__finally
{
filename_free(CertFilename);
}
strbuf * Pub = strbuf_new();
char * AlgorithmName = NULL;
try
{
const char * ErrorStr = NULL;
char * CommentStr = NULL;
if (!ppk_loadpub_s(BinarySource_UPCAST(CertLoadedFile), &AlgorithmName,
BinarySink_UPCAST(Pub), &CommentStr, &ErrorStr))
{
UnicodeString Error = AnsiString(ErrorStr);
throw ExtException(FMTLOAD(CERTIFICATE_LOAD_ERROR, (CertificateFileName)), Error);
}
sfree(CommentStr);
}
__finally
{
lf_free(CertLoadedFile);
}
const ssh_keyalg * KeyAlg;
try
{
KeyAlg = find_pubkey_alg(AlgorithmName);
if (KeyAlg == NULL)
{
throw Exception(FMTLOAD(PUB_KEY_UNKNOWN, (AlgorithmName)));
}
// Check the two public keys match apart from certificates
strbuf * OldBasePub = strbuf_new();
ssh_key_public_blob(ssh_key_base_key(Ssh2Key->key), BinarySink_UPCAST(OldBasePub));
ssh_key * NewPubKey = ssh_key_new_pub(KeyAlg, ptrlen_from_strbuf(Pub));
strbuf * NewBasePub = strbuf_new();
ssh_key_public_blob(ssh_key_base_key(NewPubKey), BinarySink_UPCAST(NewBasePub));
ssh_key_free(NewPubKey);
bool Match = ptrlen_eq_ptrlen(ptrlen_from_strbuf(OldBasePub), ptrlen_from_strbuf(NewBasePub));
strbuf_free(OldBasePub);
strbuf_free(NewBasePub);
if (!Match)
{
throw Exception(FMTLOAD(CERTIFICATE_NOT_MATCH, (CertificateFileName)));
}
strbuf * Priv = strbuf_new_nm();
ssh_key_private_blob(Ssh2Key->key, BinarySink_UPCAST(Priv));
ssh_key * NewKey = ssh_key_new_priv(KeyAlg, ptrlen_from_strbuf(Pub), ptrlen_from_strbuf(Priv));
strbuf_free(Priv);
if (NewKey == NULL)
{
throw Exception(FMTLOAD(CERTIFICATE_CANNOT_COMBINE, (CertificateFileName)));
}
ssh_key_free(Ssh2Key->key);
Ssh2Key->key = NewKey;
}
__finally
{
strbuf_free(Pub);
sfree(AlgorithmName);
}
}
//---------------------------------------------------------------------------
void SaveKey(TKeyType KeyType, const UnicodeString & FileName,
const UnicodeString & Passphrase, TPrivateKey * PrivateKey)
{
UTF8String UtfFileName = UTF8String(FileName);
Filename * KeyFile = filename_from_utf8(UtfFileName.c_str());
try
{
struct ssh2_userkey * Ssh2Key = reinterpret_cast<struct ssh2_userkey *>(PrivateKey);
AnsiString AnsiPassphrase = Passphrase;
char * PassphrasePtr = (AnsiPassphrase.IsEmpty() ? NULL : AnsiPassphrase.c_str());
switch (KeyType)
{
case ktSSH2:
{
ppk_save_parameters Params = ppk_save_default_parameters;
if (Configuration->KeyVersion != 0)
{
Params.fmt_version = Configuration->KeyVersion;
}
if (!ppk_save_f(KeyFile, Ssh2Key, PassphrasePtr, &Params))
{
int Error = errno;
throw EOSExtException(FMTLOAD(KEY_SAVE_ERROR, (FileName)), Error);
}
}
break;
default:
DebugFail();
break;
}
}
__finally
{
filename_free(KeyFile);
}
}
//---------------------------------------------------------------------------
void FreeKey(TPrivateKey * PrivateKey)
{
struct ssh2_userkey * Ssh2Key = reinterpret_cast<struct ssh2_userkey *>(PrivateKey);
ssh_key_free(Ssh2Key->key);
sfree(Ssh2Key->comment);
sfree(Ssh2Key);
}
//---------------------------------------------------------------------------
RawByteString StrBufToString(strbuf * StrBuf)
{
return RawByteString(reinterpret_cast<char *>(StrBuf->s), SizeToIntChecked(StrBuf->len));
}
//---------------------------------------------------------------------------
RawByteString LoadPublicKey(
const UnicodeString & FileName, UnicodeString & Algorithm, UnicodeString & Comment, bool & HasCertificate)
{
RawByteString Result;
UTF8String UtfFileName = UTF8String(FileName);
Filename * KeyFile = filename_from_utf8(UtfFileName.c_str());
try
{
char * AlgorithmStr = NULL;
char * CommentStr = NULL;
const char * ErrorStr = NULL;
strbuf * PublicKeyBuf = strbuf_new();
if (!ppk_loadpub_f(KeyFile, &AlgorithmStr, BinarySink_UPCAST(PublicKeyBuf), &CommentStr, &ErrorStr))
{
UnicodeString Error = UnicodeString(AnsiString(ErrorStr));
throw Exception(Error);
}
Algorithm = UnicodeString(AnsiString(AlgorithmStr));
const ssh_keyalg * KeyAlg = find_pubkey_alg(AlgorithmStr);
HasCertificate = (KeyAlg != NULL) && KeyAlg->is_certificate;
sfree(AlgorithmStr);
Comment = UnicodeString(AnsiString(CommentStr));
sfree(CommentStr);
Result = StrBufToString(PublicKeyBuf);
strbuf_free(PublicKeyBuf);
}
__finally
{
filename_free(KeyFile);
}
return Result;
}
//---------------------------------------------------------------------------
UnicodeString GetPublicKeyLine(const UnicodeString & FileName, UnicodeString & Comment, bool & HasCertificate)
{
UnicodeString Algorithm;
RawByteString PublicKey = LoadPublicKey(FileName, Algorithm, Comment, HasCertificate);
UnicodeString PublicKeyBase64 = EncodeStrToBase64(PublicKey);
UnicodeString Result = FORMAT(L"%s %s %s", (Algorithm, PublicKeyBase64, Comment));
return Result;
}
//---------------------------------------------------------------------------
bool __fastcall HasGSSAPI(UnicodeString CustomPath)
{
static int has = -1;
if (has < 0)
{
Conf * conf = conf_new();
ssh_gss_liblist * List = NULL;
try
{
Filename * filename = filename_from_utf8(UTF8String(CustomPath).c_str());
conf_set_filename(conf, CONF_ssh_gss_custom, filename);
filename_free(filename);
List = ssh_gss_setup(conf, NULL);
for (int Index = 0; (has <= 0) && (Index < List->nlibraries); Index++)
{
ssh_gss_library * library = &List->libraries[Index];
Ssh_gss_ctx ctx;
memset(&ctx, 0, sizeof(ctx));
has =
((library->acquire_cred(library, &ctx, NULL) == SSH_GSS_OK) &&
(library->release_cred(library, &ctx) == SSH_GSS_OK)) ? 1 : 0;
}
}
__finally
{
ssh_gss_cleanup(List);
conf_free(conf);
}
if (has < 0)
{
has = 0;
}
}
return (has > 0);
}
//---------------------------------------------------------------------------
static void __fastcall DoNormalizeFingerprint(UnicodeString & Fingerprint, UnicodeString & KeyName, UnicodeString & KeyType)
{
cp_ssh_keyalg * SignKeys;
int Count;
// We may use find_pubkey_alg, but it gets complicated with normalized fingerprint
// as the names have different number of dashes
get_hostkey_algs(-1, &Count, &SignKeys);
try
{
for (int Index = 0; Index < Count; Index++)
{
cp_ssh_keyalg SignKey = SignKeys[Index];
UnicodeString Name = UnicodeString(SignKey->ssh_id);
if (StartsStr(Name + L" ", Fingerprint))
{
UnicodeString Rest = Fingerprint.SubString(Name.Length() + 2, Fingerprint.Length() - Name.Length() - 1);
int Space = Rest.Pos(L" ");
// If not a number, it's an invalid input,
// either something completely wrong, or it can be OpenSSH base64 public key,
// that got here from TPasteKeyHandler::Paste
if (IsNumber(Rest.SubString(1, Space - 1)))
{
KeyName = Name;
Fingerprint = Rest.SubString(Space + 1, Fingerprint.Length() - Space);
Fingerprint = Base64ToUrlSafe(Fingerprint);
Fingerprint = MD5ToUrlSafe(Fingerprint);
KeyType = UnicodeString(SignKey->cache_id);
return;
}
}
else if (StartsStr(Name + NormalizedFingerprintSeparator, Fingerprint))
{
KeyType = UnicodeString(SignKey->cache_id);
KeyName = Name;
Fingerprint.Delete(1, Name.Length() + 1);
return;
}
}
}
__finally
{
sfree(SignKeys);
}
}
//---------------------------------------------------------------------------
void __fastcall NormalizeFingerprint(UnicodeString & Fingerprint, UnicodeString & KeyName)
{
UnicodeString KeyType;
DoNormalizeFingerprint(Fingerprint, KeyName, KeyType);
}
//---------------------------------------------------------------------------
UnicodeString __fastcall KeyTypeFromFingerprint(UnicodeString Fingerprint)
{
UnicodeString KeyType;
UnicodeString KeyName; // unused
DoNormalizeFingerprint(Fingerprint, KeyName, KeyType);
return KeyType;
}
//---------------------------------------------------------------------------
UnicodeString __fastcall GetPuTTYVersion()
{
// "Release 0.64"
// "Pre-release 0.65:2015-07-20.95501a1"
// "Development snapshot 2015-12-22.51465fa"
UnicodeString Result = get_putty_version();
// Skip "Release", "Pre-release", "Development snapshot"
int P = Result.LastDelimiter(L" ");
Result.Delete(1, P);
return Result;
}
//---------------------------------------------------------------------------
static const ssh_hashalg * GetHashAlg(const UnicodeString & Alg)
{
if (SameIdent(Alg, Sha256ChecksumAlg))
{
return &ssh_sha256;
}
else if (SameIdent(Alg, Sha1ChecksumAlg))
{
return &ssh_sha1;
}
else if (SameIdent(Alg, Md5ChecksumAlg))
{
return &ssh_md5;
}
else
{
throw Exception(FMTLOAD(UNKNOWN_CHECKSUM, (Alg)));
}
}
//---------------------------------------------------------------------------
UnicodeString DoCalculateChecksum(const void * Data, size_t Size, const ssh_hashalg * Hash)
{
size_t Len = Hash->hlen;
unsigned char Digest[Len];
hash_simple(Hash, make_ptrlen(Data, Size), Digest);
return BytesToHex(Digest, Len);
}
//---------------------------------------------------------------------------
UnicodeString __fastcall Sha256(const void * Data, size_t Size)
{
return DoCalculateChecksum(Data, Size, &ssh_sha256);
}
//---------------------------------------------------------------------------
UnicodeString CalculateFileChecksum(TStream * Stream, const UnicodeString & Alg)
{
RawByteString Buf;
ssh_hash * Hash = ssh_hash_new(GetHashAlg(Alg));
try
{
const int BlockSize = 32 * 1024;
TFileBuffer Buffer;
DWORD Read;
do
{
Buffer.Reset();
Read = Buffer.LoadStream(Stream, BlockSize, false);
if (Read > 0)
{
put_datapl(Hash, make_ptrlen(Buffer.Data, Read));
}
}
while (Read > 0);
}
__finally
{
Buf.SetLength(SizeToIntChecked(ssh_hash_alg(Hash)->hlen));
ssh_hash_final(Hash, reinterpret_cast<unsigned char *>(Buf.c_str()));
}
UnicodeString Result = BytesToHex(Buf);
return Result;
}
//---------------------------------------------------------------------------
UnicodeString __fastcall ParseOpenSshPubLine(const UnicodeString & Line, const struct ssh_keyalg *& Algorithm)
{
UTF8String UtfLine = UTF8String(Line);
char * AlgorithmName = NULL;
char * CommentPtr = NULL;
const char * ErrorStr = NULL;
strbuf * PubBlobBuf = strbuf_new();
BinarySource Source[1];
BinarySource_BARE_INIT(Source, UtfLine.c_str(), UtfLine.Length());
UnicodeString Result;
try
{
if (!openssh_loadpub(Source, &AlgorithmName, BinarySink_UPCAST(PubBlobBuf), &CommentPtr, &ErrorStr))
{
throw Exception(UnicodeString(ErrorStr));
}
else
{
Algorithm = find_pubkey_alg(AlgorithmName);
if (Algorithm == NULL)
{
throw Exception(FMTLOAD(PUB_KEY_UNKNOWN, (AlgorithmName)));
}
ptrlen PtrLen = { PubBlobBuf->s, PubBlobBuf->len };
ssh_key * Key = Algorithm->new_pub(Algorithm, PtrLen);
if (Key == NULL)
{
throw Exception(L"Invalid public key.");
}
char * FmtKey = Algorithm->cache_str(Key);
Result = UnicodeString(FmtKey);
sfree(FmtKey);
Algorithm->freekey(Key);
}
}
__finally
{
strbuf_free(PubBlobBuf);
sfree(AlgorithmName);
sfree(CommentPtr);
}
return Result;
}
//---------------------------------------------------------------------------
// Based on ca_refresh_pubkey_info
void ParseCertificatePublicKey(const UnicodeString & Str, RawByteString & PublicKey, UnicodeString & Fingerprint)
{
AnsiString AnsiStr = AnsiString(Str);
ptrlen Data = ptrlen_from_asciz(AnsiStr.c_str());
strbuf * Blob = strbuf_new();
try
{
// See if we have a plain base64-encoded public key blob.
if (base64_valid(Data))
{
base64_decode_bs(BinarySink_UPCAST(Blob), Data);
}
else
{
// Otherwise, try to decode as if it was a public key _file_.
BinarySource Src[1];
BinarySource_BARE_INIT_PL(Src, Data);
const char * Error;
if (!ppk_loadpub_s(Src, NULL, BinarySink_UPCAST(Blob), NULL, &Error))
{
throw Exception(FMTLOAD(SSH_HOST_CA_DECODE_ERROR, (Error)));
}
}
ptrlen AlgNamePtrLen = pubkey_blob_to_alg_name(ptrlen_from_strbuf(Blob));
if (!AlgNamePtrLen.len)
{
throw Exception(LoadStr(SSH_HOST_CA_NO_KEY_TYPE));
}
UnicodeString AlgName = UnicodeString(AnsiString(static_cast<const char *>(AlgNamePtrLen.ptr), SizeToIntChecked(AlgNamePtrLen.len)));
const ssh_keyalg * Alg = find_pubkey_alg_len(AlgNamePtrLen);
if (Alg == NULL)
{
throw Exception(FMTLOAD(PUB_KEY_UNKNOWN, (AlgName)));
}
if (Alg->is_certificate)
{
throw Exception(FMTLOAD(SSH_HOST_CA_CERTIFICATE, (AlgName)));
}
ssh_key * Key = ssh_key_new_pub(Alg, ptrlen_from_strbuf(Blob));
if (Key == NULL)
{
throw Exception(FMTLOAD(SSH_HOST_CA_INVALID, (AlgName)));
}
char * FingerprintPtr = ssh2_fingerprint(Key, SSH_FPTYPE_DEFAULT);
Fingerprint = UnicodeString(FingerprintPtr);
sfree(FingerprintPtr);
ssh_key_free(Key);
PublicKey = StrBufToString(Blob);
}
__finally
{
strbuf_free(Blob);
}
}
//---------------------------------------------------------------------------
bool IsCertificateValidityExpressionValid(
const UnicodeString & Str, UnicodeString & Error, int & ErrorStart, int & ErrorLen)
{
char * ErrorMsg;
ptrlen ErrorLoc;
AnsiString StrAnsi(Str);
const char * StrPtr = StrAnsi.c_str();
bool Result = cert_expr_valid(StrPtr, &ErrorMsg, &ErrorLoc);
if (!Result)
{
Error = UnicodeString(ErrorMsg);
sfree(ErrorMsg);
ErrorStart = SizeToIntChecked(static_cast<const char *>(ErrorLoc.ptr) - StrPtr);
ErrorLen = SizeToIntChecked(ErrorLoc.len);
}
return Result;
}
//---------------------------------------------------------------------------
bool IsOpenSSH(const UnicodeString & SshImplementation)
{
return
// e.g. "OpenSSH_5.3"
(SshImplementation.Pos(L"OpenSSH") == 1) ||
// Sun SSH is based on OpenSSH (suffers the same bugs)
(SshImplementation.Pos(L"Sun_SSH") == 1);
}
//---------------------------------------------------------------------------
// Same order as DefaultCipherList
struct TCipherGroup
{
int CipherGroup;
const ssh2_ciphers * Cipher;
};
static TCipherGroup Ciphers[] =
{
{ CIPHER_AES, &ssh2_aes },
{ CIPHER_CHACHA20, &ssh2_ccp },
{ CIPHER_AESGCM, &ssh2_aesgcm },
{ CIPHER_3DES, &ssh2_3des },
{ CIPHER_DES, &ssh2_des },
{ CIPHER_BLOWFISH, &ssh2_blowfish },
{ CIPHER_ARCFOUR, &ssh2_arcfour },
};
//---------------------------------------------------------------------------
TStrings * SshCipherList()
{
std::unique_ptr<TStrings> Result(new TStringList());
for (unsigned int Index = 0; Index < std::size(Ciphers); Index++)
{
const ssh2_ciphers * Cipher = Ciphers[Index].Cipher;
for (int Index2 = 0; Index2 < Cipher->nciphers; Index2++)
{
UnicodeString Name = UnicodeString(Cipher->list[Index2]->ssh2_id);
Result->Add(Name);
}
}
return Result.release();
}
//---------------------------------------------------------------------------
int GetCipherGroup(const ssh_cipher * TheCipher)
{
DebugAssert(strlen(TheCipher->vt->ssh2_id) > 0);
for (unsigned int Index = 0; Index < std::size(Ciphers); Index++)
{
TCipherGroup & CipherGroup = Ciphers[Index];
const ssh2_ciphers * Cipher = CipherGroup.Cipher;
for (int Index2 = 0; Index2 < Cipher->nciphers; Index2++)
{
if (strcmp(TheCipher->vt->ssh2_id, Cipher->list[Index2]->ssh2_id) == 0)
{
return CipherGroup.CipherGroup;
}
}
}
DebugFail();
return -1;
}
//---------------------------------------------------------------------------
TStrings * SshKexList()
{
std::unique_ptr<TStrings> Result(new TStringList());
// Same order as DefaultKexList
const ssh_kexes * Kexes[] = {
&ssh_gssk5_ecdh_kex, &ssh_gssk5_sha2_kex, &ssh_gssk5_sha1_kex,
&ssh_ntru_hybrid_kex, &ssh_mlkem_curve25519_hybrid_kex, &ssh_mlkem_nist_hybrid_kex, &ssh_ecdh_kex, &ssh_diffiehellman_gex,
&ssh_diffiehellman_group18, &ssh_diffiehellman_group17, &ssh_diffiehellman_group16, &ssh_diffiehellman_group15, &ssh_diffiehellman_group14,
&ssh_rsa_kex, &ssh_diffiehellman_group1 };
for (unsigned int Index = 0; Index < std::size(Kexes); Index++)
{
for (int Index2 = 0; Index2 < Kexes[Index]->nkexes; Index2++)
{
UnicodeString Name = UnicodeString(Kexes[Index]->list[Index2]->name);
Result->Add(Name);
}
}
return Result.release();
}
//---------------------------------------------------------------------------
int HostKeyToPutty(THostKey HostKey)
{
int Result;
switch (HostKey)
{
case hkWarn: Result = HK_WARN; break;
case hkRSA: Result = HK_RSA; break;
case hkDSA: Result = hkDSA; break;
case hkECDSA: Result = HK_ECDSA; break;
case hkED25519: Result = HK_ED25519; break;
case hkED448: Result = HK_ED448; break;
default: Result = -1; DebugFail();
}
return Result;
}
//---------------------------------------------------------------------------
TStrings * SshHostKeyList()
{
std::unique_ptr<TStrings> Result(new TStringList());
for (int DefaultIndex = 0; DefaultIndex < HOSTKEY_COUNT; DefaultIndex++)
{
int Type = HostKeyToPutty(DefaultHostKeyList[DefaultIndex]);
cp_ssh_keyalg * SignKeys;
int Count;
get_hostkey_algs(Type, &Count, &SignKeys);
try
{
for (int Index = 0; Index < Count; Index++)
{
cp_ssh_keyalg SignKey = SignKeys[Index];
UnicodeString Name = UnicodeString(SignKey->ssh_id);
Result->Add(Name);
}
}
__finally
{
sfree(SignKeys);
}
}
return Result.release();
}
//---------------------------------------------------------------------------
TStrings * SshMacList()
{
std::unique_ptr<TStrings> Result(new TStringList());
const struct ssh2_macalg * const * Macs = NULL;
int Count = 0;
get_macs(&Count, &Macs);
for (int Index = 0; Index < Count; Index++)
{
UnicodeString Name = UnicodeString(Macs[Index]->name);
UnicodeString S = Name;
UnicodeString ETMName = UnicodeString(Macs[Index]->etm_name);
if (!ETMName.IsEmpty())
{
S = FORMAT(L"%s (%s)", (S, ETMName));
}
Result->Add(S);
}
return Result.release();
}
//---------------------------------------------------------------------------
UnicodeString GetCipherName(const ssh_cipher * Cipher)
{
return UnicodeString(UTF8String(Cipher->vt->text_name));
}
//---------------------------------------------------------------------------
UnicodeString GetCompressorName(const ssh_compressor * Compressor)
{
UnicodeString Result;
if (Compressor != NULL)
{
Result = UnicodeString(UTF8String(Compressor->vt->name));
}
return Result;
}
//---------------------------------------------------------------------------
UnicodeString GetDecompressorName(const ssh_decompressor * Decompressor)
{
UnicodeString Result;
if (Decompressor != NULL)
{
Result = UnicodeString(UTF8String(Decompressor->vt->name));
}
return Result;
}
//---------------------------------------------------------------------------
void WritePuttySettings(THierarchicalStorage * Storage, const UnicodeString & ASettings)
{
if (PuttyRegistryTypes.empty())
{
TGuard Guard(PuttyStorageSection.get());
TValueRestorer<TPuttyRegistryMode> PuttyRegistryModeRestorer(PuttyRegistryMode, prmCollect);
Conf * conf = conf_new();
try
{
do_defaults(NULL, conf);
save_settings(NULL, conf);
}
__finally
{
conf_free(conf);
}
}
std::unique_ptr<TStrings> Settings(new TStringList());
UnicodeString Buf = ASettings;
UnicodeString Setting;
while (CutToken(Buf, Setting))
{
Settings->Add(Setting);
}
for (int Index = 0; Index < Settings->Count; Index++)
{
UnicodeString Name = Settings->Names[Index];
TPuttyRegistryTypes::const_iterator IType = PuttyRegistryTypes.find(Name);
if (IType != PuttyRegistryTypes.end())
{
UnicodeString Value = Settings->ValueFromIndex[Index];
int I = 0; // shut up
if (IType->second == REG_SZ)
{
Storage->WriteStringRaw(Name, Value);
}
else if (DebugAlwaysTrue(IType->second == REG_DWORD) &&
TryStrToInt(Value, I))
{
Storage->WriteInteger(Name, I);
}
}
}
}
//---------------------------------------------------------------------------
void PuttyDefaults(Conf * conf)
{
TGuard Guard(PuttyStorageSection.get());
TValueRestorer<TPuttyRegistryMode> PuttyRegistryModeRestorer(PuttyRegistryMode, prmFail);
do_defaults(NULL, conf);
}
//---------------------------------------------------------------------------
void SavePuttyDefaults(const UnicodeString & Name)
{
TGuard Guard(PuttyStorageSection.get());
TValueRestorer<TPuttyRegistryMode> PuttyRegistryModeRestorer(PuttyRegistryMode, prmPass);
Conf * conf = conf_new();
try
{
PuttyDefaults(conf);
AnsiString PuttyName = PuttyStr(Name);
save_settings(PuttyName.c_str(), conf);
}
__finally
{
conf_free(conf);
}
}
//---------------------------------------------------------------------------
struct host_ca_enum
{
int Index;
};
//---------------------------------------------------------------------------
host_ca_enum * enum_host_ca_start()
{
Configuration->RefreshPuttySshHostCAList();
host_ca_enum * Result = new host_ca_enum();
Result->Index = 0;
return Result;
}
//---------------------------------------------------------------------------
bool enum_host_ca_next(host_ca_enum * Enum, strbuf * StrBuf)
{
const TSshHostCAList * SshHostCAList = Configuration->ActiveSshHostCAList;
bool Result = (Enum->Index < SshHostCAList->GetCount());
if (Result)
{
put_asciz(StrBuf, UTF8String(SshHostCAList->Get(Enum->Index)->Name).c_str());
Enum->Index++;
}
return Result;
}
#pragma clang diagnostic pop
//---------------------------------------------------------------------------
void enum_host_ca_finish(host_ca_enum * Enum)
{
delete Enum;
}
//---------------------------------------------------------------------------
host_ca * host_ca_load(const char * NameStr)
{
host_ca * Result = NULL;
UnicodeString Name = UTF8String(NameStr);
const TSshHostCA * SshHostCA = Configuration->ActiveSshHostCAList->Find(Name);
if (DebugAlwaysTrue(SshHostCA != NULL))
{
Result = host_ca_new();
Result->name = dupstr(NameStr);
Result->ca_public_key = strbuf_dup(make_ptrlen(SshHostCA->PublicKey.c_str(), SshHostCA->PublicKey.Length()));
Result->validity_expression = dupstr(UTF8String(SshHostCA->ValidityExpression).c_str());
Result->opts.permit_rsa_sha1 = SshHostCA->PermitRsaSha1;
Result->opts.permit_rsa_sha256 = SshHostCA->PermitRsaSha256;
Result->opts.permit_rsa_sha512 = SshHostCA->PermitRsaSha512;
}
return Result;
}
//---------------------------------------------------------------------------
void done_with_socket(SOCKET)
{
// noop (no callbacks queued by our code)
}
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
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