public async Task <IActionResult> AddFaces([FromRoute] string listId, [FromForm] List <IFormFile> faces, [FromForm] IFormFile metadata)
{
var userData = new Dictionary <string, string>();
if (faces == null)
{
return(BadRequest());
}
if (metadata != null)
{
using (var reader = new StreamReader(metadata.OpenReadStream()))
{
string line = await reader.ReadLineAsync();
while (!string.IsNullOrEmpty(line))
{
string[] tokens = line.Split('\t');
userData.Add(tokens[0], tokens[1]);
line = await reader.ReadLineAsync();
}
}
}
var faceErrors = new Dictionary <string, string>();
foreach (var face in faces)
{
try
{
var parameters = new Dictionary <string, object>
{
{ "largeFaceListId", listId }
};
if (userData.Count > 0)
{
parameters.Add("userData", userData[face.FileName]);
}
string faceId = await _faceRecognition.AddFace(listId, face.OpenReadStream(), parameters);
await _storage.AddFaceToContainer(listId, faceId, face.OpenReadStream());
}
catch (Exception e)
{
faceErrors.Add(face.FileName, e.Message);
}
}
// Train the collection after bulk uploading all the new faces
await _faceRecognition.TrainCollection(listId,
new Dictionary <string, object>
{
{ "largeFaceListId", listId }
});
if (faceErrors.Count > 0)
{
return(Ok(faceErrors));
}
else
{
return(Ok());
}
}
/// <inheritdoc />
public async Task <Guid> SignUp(string email, string givenName, string familyName, Stream faceStream)
{
List <Face> detectedFaces = await _faceRecognition.Detect(faceStream);
// If more than one face is detected, throw a fit
if (detectedFaces.Count > 1)
{
throw new Exception("More than one face detected. Please try again with only one person in the picture.");
}
Guid personId = Guid.Empty;
Guid faceId = Guid.Empty;
var additionalParameters = new Dictionary <string, object>
{
{ "largePersonGroupId", _group.ToLower().Replace(' ', '-') },
{ "name", $"{givenName} {familyName}" }
};
var collectionExists = await _faceRecognition.GetCollection(_group, additionalParameters);
if (collectionExists == null)
{
await _faceRecognition.CreateCollection(_group, additionalParameters);
}
string result = await _faceRecognition.AddFace(_group, faceStream, additionalParameters);
if (result.IndexOf('|') > -1)
{
personId = Guid.Parse(result.Split('|')[0]);
faceId = Guid.Parse(result.Split('|')[1]);
additionalParameters.Add("personId", personId.ToString());
}
else
{
faceId = Guid.Parse(result);
}
var document = await LoadUserData();
if (document == null)
{
document = new XmlDocument();
document.LoadXml("<users></users>");
var header = document.CreateXmlDeclaration("1.0", "utf-8", null);
document.InsertBefore(header, document.DocumentElement);
}
using (var xmlStream = new MemoryStream())
{
using (var xmlWriter = XmlWriter.Create(xmlStream))
{
this.SaveUser(document, personId, email, givenName, familyName, faceId);
document.WriteTo(xmlWriter);
}
await _storage.WriteUserData(_group, USER_DATA, xmlStream);
await _storage.SaveFace(_group, faceId.ToString(), faceStream);
return(personId);
}
}