private bool AskUserReliability(ISSHHostKeyInformationProvider info, string keystr, string message_text_id)
{
//比較結果に基づく処理
IPoderosaForm form = UsabilityPlugin.Instance.WindowManager.ActiveWindow;
Debug.Assert(form.AsForm().InvokeRequired); //別スレッドで実行しているはず
//fingerprint
StringBuilder bld = new StringBuilder();
byte[] fingerprint = info.HostKeyFingerPrint;
for (int i = 0; i < fingerprint.Length; i++)
{
if (bld.Length > 0)
{
bld.Append(':');
}
bld.Append(fingerprint[i].ToString("x2"));
}
string message = String.Format("ssh hostkey fingerprint {0}\n\n{1}", bld.ToString(), UsabilityPlugin.Strings.GetString(message_text_id));
if (form.AskUserYesNo(message) == DialogResult.Yes)
{
Update(info, keystr, true);
return(true);
}
else
{
return(false);
}
}
public bool Verify(ISSHHostKeyInformationProvider info)
{
if (!_loaded)
{
try {
Load();
}
catch (Exception ex) { //ロード中のエラーのときは鍵は拒否。安全側に！
RuntimeUtil.ReportException(ex);
return(false);
}
}
string keystr = info.KnownHostsString;
string local = (info.Protocol == SSHProtocol.SSH1) ? _dataForSSH1[ToKeyString(info)] : _dataForSSH2[ToKeyString(info)];
if (local == null)
{
return(AskUserReliability(info, keystr, "Message.HostKeyChecker.AskHostKeyRegister"));
}
else if (keystr != local)
{
return(AskUserReliability(info, keystr, "Message.HostKeyChecker.AskHostKeyRenew"));
}
else
{
return(true);
}
}
public bool Vefiry(ISSHHostKeyInformationProvider info)
{
if (_verifier == null)
_verifier = FindHostKeyVerifier();
if (_verifier == null)
return true; //普通KnownHostsくらいはあるだろう。エラーにすべきかもしれないが
else
return _verifier.Verify(info);
}
private static string ToKeyString(ISSHHostKeyInformationProvider info)
{
string h = info.HostName;
if (info.PortNumber != 22)
{
h += ":" + info.PortNumber;
}
return(h);
}
public bool Vefiry(ISSHHostKeyInformationProvider info)
{
if (_verifier == null)
{
_verifier = FindHostKeyVerifier();
}
if (_verifier == null)
{
return(true); //普通KnownHostsくらいはあるだろう。エラーにすべきかもしれないが
}
else
{
return(_verifier.Verify(info));
}
}
private void Update(ISSHHostKeyInformationProvider info, string key, bool flush)
{
if (info.Protocol == SSHProtocol.SSH1)
{
_dataForSSH1[ToKeyString(info)] = key;
}
else
{
_dataForSSH2[ToKeyString(info)] = key;
}
_modified = true;
if (flush)
{
Flush();
}
}
private bool CheckKey(ISSHHostKeyInformationProvider info)
{
SetIgnoreTimeout(); //これが呼ばれるということは途中までSSHのネゴシエートができているのでタイムアウトはしないようにする
return _keycheck(info);
}
private bool CheckKey(ISSHHostKeyInformationProvider info)
{
SetIgnoreTimeout(); //これが呼ばれるということは途中までSSHのネゴシエートができているのでタイムアウトはしないようにする
return(_keycheck(info));
}
//ISSHHostKeyVerifier
public bool Verify(ISSHHostKeyInformationProvider provider)
{
return(_acceptsHostKey);
}
private void Update(ISSHHostKeyInformationProvider info, string key, bool flush)
{
if (info.Protocol == SSHProtocol.SSH1)
_dataForSSH1[ToKeyString(info)] = key;
else
_dataForSSH2[ToKeyString(info)] = key;
_modified = true;
if (flush)
Flush();
}
private bool AskUserReliability(ISSHHostKeyInformationProvider info, string keystr, string message_text_id)
{
//比較結果に基づく処理
IPoderosaForm form = UsabilityPlugin.Instance.WindowManager.ActiveWindow;
Debug.Assert(form.AsForm().InvokeRequired); //別スレッドで実行しているはず
//fingerprint
StringBuilder bld = new StringBuilder();
byte[] fingerprint = info.HostKeyFingerPrint;
for (int i = 0; i < fingerprint.Length; i++) {
if (bld.Length > 0)
bld.Append(':');
bld.Append(fingerprint[i].ToString("x2"));
}
string message = String.Format("ssh hostkey fingerprint {0}\n\n{1}", bld.ToString(), UsabilityPlugin.Strings.GetString(message_text_id));
if (form.AskUserYesNo(message) == DialogResult.Yes) {
Update(info, keystr, true);
return true;
}
else
return false;
}
private static string ToKeyString(ISSHHostKeyInformationProvider info)
{
string h = info.HostName;
if (info.PortNumber != 22)
h += ":" + info.PortNumber;
return h;
}
public bool Verify(ISSHHostKeyInformationProvider info)
{
if (!_loaded) {
try {
Load();
}
catch (Exception ex) { //ロード中のエラーのときは鍵は拒否。安全側に！
RuntimeUtil.ReportException(ex);
return false;
}
}
string keystr = info.KnownHostsString;
string local = (info.Protocol == SSHProtocol.SSH1) ? _dataForSSH1[ToKeyString(info)] : _dataForSSH2[ToKeyString(info)];
if (local == null) {
return AskUserReliability(info, keystr, "Message.HostKeyChecker.AskHostKeyRegister");
}
else if (keystr != local) {
return AskUserReliability(info, keystr, "Message.HostKeyChecker.AskHostKeyRenew");
}
else
return true;
}