194 lines
7.1 KiB
C#
194 lines
7.1 KiB
C#
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using System;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Net.Mime;
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using System.Security.Claims;
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using System.Web;
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using Microsoft.AspNet.Http;
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using Yavsc.Abstract.FileSystem;
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using Yavsc.Exceptions;
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using Yavsc.Models;
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using Yavsc.Models.FileSystem;
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using Yavsc.ViewModels;
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namespace Yavsc.Helpers
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{
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public static class FileSystemHelpers
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{
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public static Func<string,string,long,string>
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SignFileNameFormat = new Func<string,string,long,string> ((signType,billingCode,estimateId) => $"sign-{billingCode}-{signType}-{estimateId}.png");
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public static FileRecievedInfo ReceiveProSignature(this ClaimsPrincipal user, string billingCode, long estimateId, IFormFile formFile, string signtype)
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{
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var item = new FileRecievedInfo();
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item.FileName = SignFileNameFormat("pro",billingCode,estimateId);
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item.MimeType = formFile.ContentDisposition;
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var destFileName = Path.Combine(Startup.SiteSetup.Bills, item.FileName);
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var fi = new FileInfo(destFileName);
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if (fi.Exists) item.Overriden = true;
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using (var org = formFile.OpenReadStream())
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{
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Image i = Image.FromStream(org);
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using (Bitmap source = new Bitmap(i))
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{
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source.Save(destFileName, ImageFormat.Png);
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}
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}
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return item;
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}
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private static void CreateAvatars(this ApplicationUser user, Bitmap source)
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{
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var dir = Startup.SiteSetup.Avatars;
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var name = user.UserName + ".png";
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var smallname = user.UserName + ".s.png";
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var xsmallname = user.UserName + ".xs.png";
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using (Bitmap newBMP = new Bitmap(source, 128, 128))
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{
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newBMP.Save(Path.Combine(
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dir, name), ImageFormat.Png);
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}
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using (Bitmap newBMP = new Bitmap(source, 64, 64))
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{
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newBMP.Save(Path.Combine(
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dir, smallname), ImageFormat.Png);
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}
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using (Bitmap newBMP = new Bitmap(source, 32, 32))
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{
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newBMP.Save(Path.Combine(
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dir, xsmallname), ImageFormat.Png);
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}
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}
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public static string InitPostToFileSystem(
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this ClaimsPrincipal user,
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string subpath)
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{
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var root = Path.Combine(AbstractFileSystemHelpers.UserFilesDirName, user.Identity.Name);
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var diRoot = new DirectoryInfo(root);
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if (!diRoot.Exists) diRoot.Create();
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if (!string.IsNullOrWhiteSpace(subpath)) {
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if (!subpath.IsValidYavscPath())
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{
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throw new InvalidPathException();
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}
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root = Path.Combine(root, subpath);
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}
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var di = new DirectoryInfo(root);
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if (!di.Exists) di.Create();
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return di.FullName;
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}
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public static void DeleteUserFile(this ApplicationUser user, string fileName)
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{
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var root = Path.Combine(AbstractFileSystemHelpers.UserFilesDirName, user.UserName);
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var fi = new FileInfo(Path.Combine(root, fileName));
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if (!fi.Exists) return ;
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fi.Delete();
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user.DiskUsage -= fi.Length;
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}
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public static FileRecievedInfo ReceiveUserFile(this ApplicationUser user, string root, IFormFile f, string destFileName = null)
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{
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long usage = user.DiskUsage;
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var item = new FileRecievedInfo();
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// form-data; name="file"; filename="capt0008.jpg"
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ContentDisposition contentDisposition = new ContentDisposition(f.ContentDisposition);
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item.FileName = Yavsc.Abstract.FileSystem.AbstractFileSystemHelpers.FilterFileName (destFileName ?? contentDisposition.FileName);
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item.MimeType = contentDisposition.DispositionType;
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item.DestDir = root;
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var fi = new FileInfo(Path.Combine(root, item.FileName));
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if (fi.Exists)
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{
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item.Overriden = true;
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usage -= fi.Length;
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}
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using (var dest = fi.OpenWrite())
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{
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using (var org = f.OpenReadStream())
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{
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byte[] buffer = new byte[1024];
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long len = org.Length;
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if (len > (user.DiskQuota - usage)) {
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item.QuotaOffensed = true;
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return item;
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}
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usage += len;
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while (len > 0)
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{
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int blen = len > 1024 ? 1024 : (int)len;
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org.Read(buffer, 0, blen);
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dest.Write(buffer, 0, blen);
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len -= blen;
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}
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dest.Close();
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org.Close();
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}
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}
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user.DiskUsage = usage;
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return item;
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}
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public static HtmlString FileLink(this RemoteFileInfo info, string username, string subpath)
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{
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return new HtmlString( Startup.UserFilesOptions.RequestPath+"/"+ username +
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"/" + (( subpath == null ) ? "" : "/" + subpath ) +
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info.Name );
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}
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public static FileRecievedInfo ReceiveAvatar(this ApplicationUser user, IFormFile formFile)
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{
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var item = new FileRecievedInfo();
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item.FileName = user.UserName + ".png";
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var destFileName = Path.Combine(Startup.SiteSetup.Avatars, item.FileName);
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var fi = new FileInfo(destFileName);
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if (fi.Exists) item.Overriden = true;
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Rectangle cropRect = new Rectangle();
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using (var org = formFile.OpenReadStream())
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{
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Image i = Image.FromStream(org);
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using (Bitmap source = new Bitmap(i))
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{
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if (i.Width != i.Height)
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{
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if (i.Width > i.Height)
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{
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cropRect.X = (i.Width - i.Height) / 2;
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cropRect.Y = 0;
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cropRect.Width = i.Height;
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cropRect.Height = i.Height;
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}
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else
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{
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cropRect.X = 0;
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cropRect.Y = (i.Height - i.Width) / 2;
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cropRect.Width = i.Width;
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cropRect.Height = i.Width;
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}
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using (var cropped = source.Clone(cropRect, source.PixelFormat))
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{
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CreateAvatars(user,cropped);
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}
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}
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}
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}
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item.DestDir = Startup.AvatarsOptions.RequestPath.ToUriComponent();
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user.Avatar = $"{item.DestDir}/{item.FileName}";
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return item;
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}
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}
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}
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