Created
October 6, 2016 08:37
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Save mirsaeedi/ae6462906be7f6c8021abbc22ccef4e9 to your computer and use it in GitHub Desktop.
Helps you to save uploaded files to disk in ASP.Net Web API. The SaveFile method works with Request object directly.
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| public async Task<IHttpActionResult> SaveFile(string diskFolderPath) | |
| { | |
| var path = Path.GetTempPath(); | |
| if (!Request.Content.IsMimeMultipartContent("form-data")) | |
| { | |
| throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.UnsupportedMediaType)); | |
| } | |
| MultipartFormDataStreamProvider streamProvider = new MultipartFormDataStreamProvider(path); | |
| await Request.Content.ReadAsMultipartAsync(streamProvider); | |
| foreach (MultipartFileData fileData in streamProvider.FileData) | |
| { | |
| string fileName = ""; | |
| if (string.IsNullOrEmpty(fileData.Headers.ContentDisposition.FileName)) | |
| { | |
| fileName = Guid.NewGuid().ToString(); | |
| } | |
| fileName = fileData.Headers.ContentDisposition.FileName; | |
| if (fileName.StartsWith("\"") && fileName.EndsWith("\"")) | |
| { | |
| fileName = fileName.Trim('"'); | |
| } | |
| if (fileName.Contains(@"/") || fileName.Contains(@"\")) | |
| { | |
| fileName = Path.GetFileName(fileName); | |
| } | |
| var newFileName = Path.Combine(HostingEnvironment.MapPath("~" + diskFolderPath), fileName); | |
| var fileInfo = new FileInfo(newFileName); | |
| if (fileInfo.Exists) | |
| { | |
| fileName = fileInfo.Name.Replace(fileInfo.Extension, ""); | |
| fileName = fileName + (new Random().Next(0, 10000)) + fileInfo.Extension; | |
| newFileName = Path.Combine(HostingEnvironment.MapPath(diskFolderPath), fileName); | |
| } | |
| if (!Directory.Exists(fileInfo.Directory.FullName)) | |
| { | |
| Directory.CreateDirectory(fileInfo.Directory.FullName); | |
| } | |
| File.Move(fileData.LocalFileName, newFileName); | |
| return Json(new { link = diskFolderPath + fileName }); | |
| } | |
| return BadRequest(); | |
| } |
thanks for share.
*21 to 29 line needs to be else statement
using System;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using System.Web.Hosting;
using System.Web.Http;
namespace WebApi.Controllers
{
public class BaseController : ApiController
{
public async Task<IHttpActionResult> SaveFile(string diskFolderPath)
{
var path = Path.GetTempPath();
if (!Request.Content.IsMimeMultipartContent("form-data"))
{
throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.UnsupportedMediaType));
}
MultipartFormDataStreamProvider streamProvider = new MultipartFormDataStreamProvider(path);
await Request.Content.ReadAsMultipartAsync(streamProvider);
foreach (MultipartFileData fileData in streamProvider.FileData)
{
string fileName = "";
if (string.IsNullOrEmpty(fileData.Headers.ContentDisposition.FileName))
{
fileName = Guid.NewGuid().ToString();
}
else
{
fileName = fileData.Headers.ContentDisposition.FileName;
if (fileName.StartsWith("\"") && fileName.EndsWith("\""))
{
fileName = fileName.Trim('"');
}
if (fileName.Contains(@"/") || fileName.Contains(@"\"))
{
fileName = Path.GetFileName(fileName);
}
}
var newFileName = Path.Combine(HostingEnvironment.MapPath("~" + diskFolderPath), fileName);
var fileInfo = new FileInfo(newFileName);
while(fileInfo.Exists)
{
fileName = fileInfo.Name.Replace(fileInfo.Extension, "");
fileName = fileName + Guid.NewGuid().ToString() + fileInfo.Extension;
newFileName = Path.Combine(HostingEnvironment.MapPath(diskFolderPath), fileName);
fileInfo = new FileInfo(newFileName);
}
if (!Directory.Exists(fileInfo.Directory.FullName))
{
Directory.CreateDirectory(fileInfo.Directory.FullName);
}
File.Move(fileData.LocalFileName, newFileName);
return Json(new { link = diskFolderPath + fileName });
}
return BadRequest();
}
}
}
using System; using System.IO; using System.Net; using System.Net.Http; using System.Threading.Tasks; using System.Web.Hosting; using System.Web.Http; namespace WebApi.Controllers { public class BaseController : ApiController { public async Task<IHttpActionResult> SaveFile(string diskFolderPath) { var path = Path.GetTempPath(); if (!Request.Content.IsMimeMultipartContent("form-data")) { throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.UnsupportedMediaType)); } MultipartFormDataStreamProvider streamProvider = new MultipartFormDataStreamProvider(path); await Request.Content.ReadAsMultipartAsync(streamProvider); foreach (MultipartFileData fileData in streamProvider.FileData) { string fileName = ""; if (string.IsNullOrEmpty(fileData.Headers.ContentDisposition.FileName)) { fileName = Guid.NewGuid().ToString(); } else { fileName = fileData.Headers.ContentDisposition.FileName; if (fileName.StartsWith("\"") && fileName.EndsWith("\"")) { fileName = fileName.Trim('"'); } if (fileName.Contains(@"/") || fileName.Contains(@"\")) { fileName = Path.GetFileName(fileName); } } var newFileName = Path.Combine(HostingEnvironment.MapPath("~" + diskFolderPath), fileName); var fileInfo = new FileInfo(newFileName); while(fileInfo.Exists) { fileName = fileInfo.Name.Replace(fileInfo.Extension, ""); fileName = fileName + Guid.NewGuid().ToString() + fileInfo.Extension; newFileName = Path.Combine(HostingEnvironment.MapPath(diskFolderPath), fileName); fileInfo = new FileInfo(newFileName); } if (!Directory.Exists(fileInfo.Directory.FullName)) { Directory.CreateDirectory(fileInfo.Directory.FullName); } File.Move(fileData.LocalFileName, newFileName); return Json(new { link = diskFolderPath + fileName }); } return BadRequest(); } } }
Here I fixed some bugs like creating random filename and else statement
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At line 19 you set the fileName variable conditionally, and after that you set it anyway. The entire if-statement is useless.