private KeePassHttpResponse Send(KeePassHttpRequest request)
{
if (this.Debug)
{
this.RequestList.Add(DateTime.Now, request);
}
try
{
using (WebClient webClient = new WebClient())
{
webClient.Headers[HttpRequestHeader.ContentType] = "application/json";
string requestString = request.ToJson();
KeePassHttpResponse response = webClient.UploadString(this.GetKeePassHttpUri(), requestString).FromJson <KeePassHttpResponse>();;
if (this.Debug)
{
this.ResponseList.Add(DateTime.Now, response);
}
return(response);
}
}
catch (WebException ex)
{
throw new KeePassHttpException("Error connecting to KeePassHttp", ex);
}
}
public void Associate()
{
if (this.Hash != null)
{
KeePassHttpRequest request = new KeePassHttpRequest();
if (this.Key == null)
{
this.GenerateKey();
}
request.Key = Convert.ToBase64String(this.Key);
this.SetVerifier(request);
request.RequestType = KeePassHttpRequestType.ASSOCIATE;
KeePassHttpResponse response = this.Send(request);
this.Id = response.Id;
if (!response.Success || this.Id == null)
{
throw new Exception(string.Format("KeePassHttp association failed ({0})", response.Error));
}
}
else
{
throw new KeePassHttpException("KeePassHttp disconnected");
}
}
public bool Connect()
{
if (this.Hash == null)
{
KeePassHttpRequest request = new KeePassHttpRequest {
RequestType = KeePassHttpRequestType.TEST_ASSOCIATE
};
this.SetVerifier(request);
KeePassHttpResponse response = this.Send(request);
this.Hash = response.Hash;
return(response.Success);
}
return(true);
}
private void SetVerifier(KeePassHttpRequest request)
{
this.AesManaged.GenerateIV();
request.Id = this.Id;
request.Nonce = Convert.ToBase64String(AesManaged.IV);
using (ICryptoTransform encryptor = this.AesManaged.CreateEncryptor())
{
byte[] bytes = Encoding.UTF8.GetBytes(request.Nonce);
byte[] buffer = encryptor.TransformFinalBlock(bytes, 0, bytes.Length);
request.Verifier = Convert.ToBase64String(buffer);
}
}
private KeePassCredential[] RetrieveCredentials(string searchString, KeePassHttpRequestSearchField searchField)
{
if (this.Key != null && this.Id != null)
{
KeePassHttpRequest request = new KeePassHttpRequest();
if (searchField == KeePassHttpRequestSearchField.Url)
{
request.RequestType = KeePassHttpRequestType.GET_LOGINS;
}
else if (searchField == KeePassHttpRequestSearchField.Any)
{
request.RequestType = KeePassHttpRequestType.GET_LOGINS_CUSTOM_SEARCH;
}
this.SetVerifier(request);
using (ICryptoTransform encryptor = this.AesManaged.CreateEncryptor())
{
byte[] bytes = Encoding.UTF8.GetBytes(searchString);
byte[] buffer = encryptor.TransformFinalBlock(bytes, 0, bytes.Length);
if (searchField == KeePassHttpRequestSearchField.Url)
{
request.Url = Convert.ToBase64String(buffer);
}
else if (searchField == KeePassHttpRequestSearchField.Any)
{
request.SearchString = Convert.ToBase64String(buffer);
}
}
KeePassHttpResponse response = this.Send(request);
if (!response.Success)
{
throw new KeePassHttpException(String.Format("Error requesting KeePass credentials ({0})", response.Error ?? "unknown error from KeePassHttp"));
}
return(response.Entries.Select(entry => this.DecryptEntry(entry, response.Nonce)).ToArray());
}
return(null);
}
