/// <summary>
/// Creates an action result with a thumbnail image of a file in the storage.
/// </summary>
/// <param name="originalMetadata">Metadata of the original image file.</param>
/// <param name="storage">The storage service used to store files.</param>
/// <param name="dateTimeService">Date time service used to get current date and time.</param>
/// <param name="maxWidth">Maximum width of the thumbnail image.</param>
/// <param name="maxHeight">Maximum height of the thumbnail image.</param>
/// <param name="useCache">Whether to use a cached thumbnail or not.</param>
/// <returns>The ActionResult containing the thumbnail image.</returns>
protected ActionResult GetOrCreateThumb(
FileMetadata originalMetadata,
IBlobStorageManager storage,
IDateTimeService dateTimeService,
int maxWidth,
int maxHeight,
bool useCache = true)
{
if (originalMetadata == null)
{
throw new ArgumentNullException("originalMetadata");
}
if (originalMetadata.OwnerUserId == this.DbUser.Id)
{
var fileNamePrefix = Path.GetDirectoryName(originalMetadata.BlobName) + "\\";
var normalFileName = StringHelper.NormalizeFileName(originalMetadata.SourceFileName);
var thumbName = string.Format(
"{0}\\{1}file-{2}-thumb-{4}x{5}-{3}",
originalMetadata.ContainerName,
fileNamePrefix,
originalMetadata.Id,
normalFileName,
maxWidth,
maxHeight);
var fileName = string.Format("{0}\\{1}", originalMetadata.ContainerName, originalMetadata.BlobName);
int originalMetadataId = originalMetadata.Id;
var metadataProvider = new DbFileMetadataProvider(this.db, dateTimeService, this.DbUser.PracticeId);
var thumbResult = ImageHelper.TryGetOrCreateThumb(
originalMetadataId,
maxWidth,
maxHeight,
fileName,
thumbName,
useCache,
storage,
metadataProvider);
switch (thumbResult.Status)
{
case CreateThumbStatus.Ok: return(this.File(thumbResult.Data, thumbResult.ContentType));
case CreateThumbStatus.SourceFileNotFound: return(new StatusCodeResult(HttpStatusCode.NotFound));
case CreateThumbStatus.SourceIsNotImage: return(this.Redirect(this.Url.Content("~/Content/Images/App/FileIcons/generic-outline.png")));
case CreateThumbStatus.SourceImageTooLarge: return(this.Redirect(this.Url.Content("~/Content/Images/App/FileIcons/generic-outline.png")));
default: throw new NotImplementedException();
}
}
return(new StatusCodeResult(HttpStatusCode.NotFound));
}
public FilesStatus GetFilesStatus(PatientFileViewModel fileModel, string prefix)
{
var fileName = fileModel.SourceFileName;
var containerName = fileModel.ContainerName;
var sourceFileName = Path.GetFileName(fileModel.SourceFileName ?? "") ?? "";
var normalFileName = StringHelper.RemoveDiacritics(sourceFileName.ToLowerInvariant());
var fileNamePrefix = Path.GetDirectoryName(fileModel.BlobName) + "\\";
var fullStoragePath = string.Format("{0}\\{1}file-{2}-{3}", containerName, fileNamePrefix, fileModel.Id, normalFileName);
var fileStatus = new FilesStatus(fileModel.Id, fileModel.MetadataId, fileName, fileModel.FileLength, prefix, fileModel.FileTitle);
var isPatientFiles = Regex.IsMatch(fileModel.ContainerName, @"^patient-files-\d+$");
// Validating each file location... otherwise this could be a security hole.
if (!isPatientFiles)
throw new Exception("Invalid file location for patient files.");
var fileMetadataProvider = new DbFileMetadataProvider(this.db, this.datetimeService, this.DbUser.PracticeId);
bool imageThumbOk = false;
try
{
var thumbName = string.Format("{0}\\{1}file-{2}-thumb-{4}x{5}-{3}", containerName, fileNamePrefix, fileModel.MetadataId, normalFileName, 120, 120);
var thumbResult = ImageHelper.TryGetOrCreateThumb(fileModel.MetadataId, 120, 120, fullStoragePath, thumbName, true, storage, fileMetadataProvider);
if (thumbResult.Status == CreateThumbStatus.Ok)
{
fileStatus.ThumbnailUrl = @"data:" + thumbResult.ContentType + ";base64," + Convert.ToBase64String(thumbResult.Data);
fileStatus.IsInGallery = true;
imageThumbOk = true;
}
}
// ReSharper disable EmptyGeneralCatchClause
catch
// ReSharper restore EmptyGeneralCatchClause
{
}
if (!imageThumbOk)
{
if (StringHelper.IsDocumentFileName(fileName))
{
fileStatus.IconClass = "document-file-icon";
}
else
{
fileStatus.IconClass = "generic-file-icon";
}
}
bool isTemp = fileModel.Id == null;
if (isTemp)
{
var location = string.Format("{0}\\{1}", fileModel.ContainerName, fileModel.BlobName);
if (imageThumbOk)
fileStatus.UrlLarge = this.Url.Action("Image", "TempFile", new { w = 1024, h = 768, id = fileModel.MetadataId, location });
fileStatus.UrlFull = this.Url.Action("File", "TempFile", new { id = fileModel.MetadataId, location });
}
else
{
if (imageThumbOk)
fileStatus.UrlLarge = this.Url.Action("Image", "PatientFiles", new { w = 1024, h = 768, id = fileModel.Id });
fileStatus.UrlFull = this.Url.Action("File", "PatientFiles", new { id = fileModel.Id });
}
return fileStatus;
}
public ActionResult Edit(Dictionary<string, PatientFilesGroupViewModel> patientFilesGroups)
{
var kv = patientFilesGroups.Single();
var formModel = kv.Value;
PatientFileGroup dbFileGroup;
if (formModel.Id == null)
{
Debug.Assert(formModel.PatientId != null, "formModel.PatientId != null");
dbFileGroup = new PatientFileGroup
{
PatientId = formModel.PatientId.Value,
PracticeId = this.DbUser.PracticeId,
CreatedOn = this.datetimeService.UtcNow,
};
this.db.PatientFileGroups.AddObject(dbFileGroup);
}
else
{
dbFileGroup = this.db.PatientFileGroups
.Include("PatientFiles")
.Include("PatientFiles.FileMetadata")
.FirstOrDefault(pe => pe.Id == formModel.Id);
}
Debug.Assert(dbFileGroup != null, "dbFileGroup != null");
var allExistingFilesInGroup = dbFileGroup.PatientFiles.ToDictionary(pf => pf.Id);
var idsToKeep = new HashSet<int>(formModel.Files.Where(f => f.Id != null).Select(f => f.Id.Value));
var storageActions = new List<Action>(formModel.Files.Count);
var metadataProvider = new DbFileMetadataProvider(this.db, this.datetimeService, this.DbUser.PracticeId);
var metadataDic = metadataProvider.GetByIds(formModel.Files.Select(f => f.MetadataId).ToArray()).ToDictionary(f => f.Id);
foreach (var eachFile in formModel.Files)
{
// Validating each file location... otherwise this could be a security hole.
FileMetadata metadata;
metadataDic.TryGetValue(eachFile.MetadataId, out metadata);
if (metadata == null)
return new StatusCodeResult(HttpStatusCode.NotFound, "Arquivo não encontrado. Outra pessoa deve ter removido esse arquivo neste instante.");
var validContainer = string.Format("patient-files-{0}", this.DbUser.Id);
if (metadata.ContainerName != validContainer)
throw new Exception("Invalid file location.");
PatientFile patientFile;
if (eachFile.Id == null)
{
// creating and adding the new patient file
Debug.Assert(formModel.PatientId != null, "formModel.PatientId != null");
patientFile = new PatientFile
{
FileMetadataId = metadata.Id,
PatientId = formModel.PatientId.Value,
PracticeId = this.DbUser.PracticeId,
};
dbFileGroup.PatientFiles.Add(patientFile);
// changing file metadata:
// - it is not temporary anymore
// - tag is free for another operation
metadata.ExpirationDate = null;
metadata.Tag = null;
}
else if (!allExistingFilesInGroup.TryGetValue(eachFile.Id.Value, out patientFile))
{
return new StatusCodeResult(HttpStatusCode.NotFound, "Arquivo não encontrado. Outra pessoa deve ter removido esse arquivo neste instante.");
}
Debug.Assert(patientFile != null, "patientFile != null");
patientFile.Title = eachFile.FileTitle;
}
// deleting files that were removed
foreach (var patientFileKv in allExistingFilesInGroup)
{
if (!idsToKeep.Contains(patientFileKv.Key))
{
// create delegate to kill the file metadata and the storage blob
// this is going to be called latter
var metadata = patientFileKv.Value.FileMetadata;
Action removeFile = () => TempFileController.DeleteFileByMetadata(metadata, this.db, this.storage);
storageActions.Add(removeFile);
// delete patient file (note that changes are not being saved yet)
this.db.PatientFiles.DeleteObject(patientFileKv.Value);
}
}
if (formModel.Files.Count == 0)
{
this.ModelState.AddModelError(string.Format("PatientFilesGroups[{0}].Files", kv.Key), "Deve haver pelo menos um arquivo na lista.");
}
if (this.ModelState.IsValid)
{
dbFileGroup.GroupTitle = formModel.Title;
dbFileGroup.GroupNotes = formModel.Notes;
Debug.Assert(formModel.FileGroupDate != null, "formModel.FileGroupDate != null");
dbFileGroup.FileGroupDate = this.ConvertToUtcDateTime(formModel.FileGroupDate.Value);
Debug.Assert(formModel.ReceiveDate != null, "formModel.ReceiveDate != null");
dbFileGroup.ReceiveDate = this.ConvertToUtcDateTime(formModel.ReceiveDate.Value);
dbFileGroup.Patient.IsBackedUp = false;
this.db.SaveChanges();
// moving files that are stored in a temporary location
foreach (var moveAction in storageActions)
moveAction();
return this.View("Details", GetViewModel(this.storage, dbFileGroup, this.DbUser.Id, this.GetToLocalDateTimeConverter()));
}
FillMissingInfos(formModel, this.db.FileMetadatas);
FillFileLengths(this.storage, formModel, this.DbUser.Id);
this.ViewBag.FilesStatusGetter = (FilesStatusGetter)this.GetFilesStatus;
return this.View("Edit", formModel);
}
/// <summary>
/// Creates an action result with a thumbnail image of a file in the storage.
/// </summary>
/// <param name="originalMetadata">Metadata of the original image file.</param>
/// <param name="storage">The storage service used to store files.</param>
/// <param name="dateTimeService">Date time service used to get current date and time.</param>
/// <param name="maxWidth">Maximum width of the thumbnail image.</param>
/// <param name="maxHeight">Maximum height of the thumbnail image.</param>
/// <param name="useCache">Whether to use a cached thumbnail or not.</param>
/// <returns>The ActionResult containing the thumbnail image.</returns>
protected ActionResult GetOrCreateThumb(
FileMetadata originalMetadata,
IBlobStorageManager storage,
IDateTimeService dateTimeService,
int maxWidth,
int maxHeight,
bool useCache = true)
{
if (originalMetadata == null)
throw new ArgumentNullException("originalMetadata");
if (originalMetadata.OwnerUserId == this.DbUser.Id)
{
var fileNamePrefix = Path.GetDirectoryName(originalMetadata.BlobName) + "\\";
var normalFileName = StringHelper.NormalizeFileName(originalMetadata.SourceFileName);
var thumbName = string.Format(
"{0}\\{1}file-{2}-thumb-{4}x{5}-{3}",
originalMetadata.ContainerName,
fileNamePrefix,
originalMetadata.Id,
normalFileName,
maxWidth,
maxHeight);
var fileName = string.Format("{0}\\{1}", originalMetadata.ContainerName, originalMetadata.BlobName);
int originalMetadataId = originalMetadata.Id;
var metadataProvider = new DbFileMetadataProvider(this.db, dateTimeService, this.DbUser.PracticeId);
var thumbResult = ImageHelper.TryGetOrCreateThumb(
originalMetadataId,
maxWidth,
maxHeight,
fileName,
thumbName,
useCache,
storage,
metadataProvider);
switch (thumbResult.Status)
{
case CreateThumbStatus.Ok: return this.File(thumbResult.Data, thumbResult.ContentType);
case CreateThumbStatus.SourceFileNotFound: return new StatusCodeResult(HttpStatusCode.NotFound);
case CreateThumbStatus.SourceIsNotImage: return this.Redirect(this.Url.Content("~/Content/Images/App/FileIcons/generic-outline.png"));
case CreateThumbStatus.SourceImageTooLarge: return this.Redirect(this.Url.Content("~/Content/Images/App/FileIcons/generic-outline.png"));
default: throw new NotImplementedException();
}
}
return new StatusCodeResult(HttpStatusCode.NotFound);
}
/// <summary>
/// Upload whole file.
/// </summary>
/// <param name="prefix"> The prefix of the fields to be placed in the HTML. </param>
/// <param name="location"> The location where the temporary file should be stored. </param>
/// <returns> The <see cref="ActionResult"/> containing information about execution of the upload. </returns>
private ActionResult UploadWholeFile(string prefix, string location, string tag)
{
var statuses = new List<FilesStatus>();
for (int i = 0; i < this.Request.Files.Count; i++)
{
var file = this.Request.Files[i];
Debug.Assert(file != null, "file != null");
var containerName = location.Split("\\".ToCharArray(), 2).FirstOrDefault();
var sourceFileName = Path.GetFileName(file.FileName ?? "") ?? "";
var normalFileName = StringHelper.NormalizeFileName(sourceFileName);
var fileNamePrefix = location.Split("\\".ToCharArray(), 2).Skip(1).FirstOrDefault();
var fileExpirationDate = this.datetimeService.UtcNow + TimeSpan.FromDays(file.ContentLength < 10 * 1024000 ? 2 : 10);
Debug.Assert(sourceFileName != null, "sourceFileName != null");
var metadataProvider = new DbFileMetadataProvider(this.db, this.datetimeService, this.DbUser.PracticeId);
// creating the metadata entry for the main file
FileMetadata metadata = metadataProvider.CreateTemporary(
containerName,
sourceFileName,
string.Format("{0}file-{1}-{2}", fileNamePrefix, "{id}", normalFileName),
fileExpirationDate,
this.DbUser.Id,
tag,
formatWithId: true);
metadata.OwnerUserId = this.DbUser.Id;
metadataProvider.SaveChanges();
// saving the file to the storage
this.storage.UploadFileToStorage(file.InputStream, containerName, metadata.BlobName);
// returning information to the client
var fileStatus = new FilesStatus(metadata.Id, sourceFileName, file.ContentLength, prefix);
bool imageThumbOk = false;
try
{
var fullStoragePath = string.Format("{0}\\{1}", containerName, metadata.BlobName);
var thumbName = string.Format("{0}\\{1}file-{2}-thumb-{4}x{5}-{3}", containerName, fileNamePrefix, metadata.Id, normalFileName, 120, 120);
var thumbResult = ImageHelper.TryGetOrCreateThumb(metadata.Id, 120, 120, fullStoragePath, thumbName, true, this.storage, metadataProvider);
if (thumbResult.Status == CreateThumbStatus.Ok)
{
fileStatus.ThumbnailUrl = @"data:" + thumbResult.ContentType + ";base64," + Convert.ToBase64String(thumbResult.Data);
fileStatus.IsInGallery = true;
imageThumbOk = true;
}
}
// ReSharper disable EmptyGeneralCatchClause
catch
// ReSharper restore EmptyGeneralCatchClause
{
}
if (!imageThumbOk)
{
if (StringHelper.IsDocumentFileName(sourceFileName))
{
fileStatus.IconClass = "document-file-icon";
}
else
{
fileStatus.IconClass = "generic-file-icon";
}
}
else
{
fileStatus.UrlLarge = this.Url.Action("Image", new { w = 1024, h = 768, location, metadata.Id });
}
fileStatus.UrlFull = this.Url.Action("File", new { location, metadata.Id });
fileStatus.DeleteUrl = this.Url.Action("Index", new { location, metadata.Id });
statuses.Add(fileStatus);
}
return this.JsonIframeSafe(new { files = statuses });
}
