//-----------------------------------------------------------------------------------
public ActionResult File(int id)
{
var f = _docRepo.Get(id);
if (f != null)
{
var document = f.BinaryBody;
var cd = new System.Net.Mime.ContentDisposition {
FileName = f.DocName,
Inline = true,
};
Response.AppendHeader("Content-Disposition", cd.ToString());
var mtr = new MimeTypeResolver();
MimeType oExtMimeType = mtr.Get(f.DocName);
FileResult fs = new FileContentResult(f.BinaryBody, oExtMimeType.PrimaryMimeType);
Log.Debug("fs {1} mime type {0}", oExtMimeType, f.DocName);
if (fs.ContentType.Contains("image") ||
fs.ContentType.Contains("pdf") ||
fs.ContentType.Contains("html") ||
fs.ContentType.Contains("text"))
{
return(fs);
}
var pdfDocument = AgreementRenderer.ConvertToPdf(document);
if (pdfDocument != null)
{
return(File(pdfDocument, "application/pdf"));
}
return(fs);
}
return(null);
}
} // ToString
public string DetectFileMimeType(byte[] oFilePrefix, string sFileName, int?nFilePrefixLength = 256, ASafeLog oLog = null)
{
oLog = oLog.Safe();
var mtr = new MimeTypeResolver();
MimeType oExtMimeType = mtr.Get(sFileName);
if (oExtMimeType != null)
{
oLog.Debug("MIME type by file extension is {0}.", oExtMimeType.PrimaryMimeType);
if (!this.Contains(oExtMimeType.PrimaryMimeType))
{
oLog.Debug("MIME type by file extension {0} does not conform to this limitation {1}.", oExtMimeType.PrimaryMimeType, this);
return(null);
} // if
}
else
{
oLog.Debug("MIME type cannot be detected by file name {0}.", sFileName);
}
if (oFilePrefix != null)
{
string sFileMimeType = mtr.GetFromFile(oFilePrefix, nFilePrefixLength);
oLog.Debug("MIME type by content is {0}", sFileMimeType);
if (this.Contains(sFileMimeType))
{
oLog.Debug("MIME type by content {0} conforms to this limitation {1}.", sFileMimeType, this);
return(sFileMimeType);
} // if
oLog.Debug("MIME type by content {0} does not conform to this limitation {1}.", sFileMimeType, this);
MimeType oFileMimeType = mtr.Find(sFileMimeType);
if (oFileMimeType == null)
{
oFileMimeType = MimeType.Binary;
oLog.Debug("Could not find MIME type by its name '{0}', using default MIME type '{1}'.", sFileMimeType, oFileMimeType.PrimaryMimeType);
} // if
if ((oExtMimeType == null) && oFileMimeType.IsCommon)
{
oLog.Debug(
"MIME type by file ('{0}') is a common one and MIME type by extension cannot be detected - file should be dropped.",
oFileMimeType.PrimaryMimeType
);
return(null);
} // if
if (oFileMimeType * oExtMimeType)
{
oLog.Debug(
"MIME type by file ('{0}') differs from MIME type by extension ('{1}') but they are compatible so using the latter.",
oFileMimeType.PrimaryMimeType,
oExtMimeType == null ? "-- null --" : oExtMimeType.PrimaryMimeType
);
return(oExtMimeType == null ? null : oExtMimeType.PrimaryMimeType);
} // if
oLog.Debug(
"MIME type by file ('{0}') differs from MIME type by extension ('{1}') and they are not compatible.",
oFileMimeType.PrimaryMimeType,
oExtMimeType == null ? string.Empty : oExtMimeType.PrimaryMimeType
);
return(null);
} // if
if (oExtMimeType != null)
{
oLog.Debug("MIME type by file extension {0} conforms to this limitation {1}.", oExtMimeType.PrimaryMimeType, this);
return(oExtMimeType.PrimaryMimeType);
} // if
oLog.Debug("No MIME type detected, returning null.");
return(null);
} // DetectFileMimeType
