mirror of
https://github.com/ShareX/ShareX.git
synced 2024-10-01 17:56:51 +13:00
170 lines
No EOL
6.1 KiB
C#
170 lines
No EOL
6.1 KiB
C#
#region License Information (GPL v3)
|
|
|
|
/*
|
|
ShareX - A program that allows you to take screenshots and share any file type
|
|
Copyright (c) 2007-2023 ShareX Team
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
Optionally you can also view the license at <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#endregion License Information (GPL v3)
|
|
|
|
using System;
|
|
using System.Drawing;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Net;
|
|
using System.Net.Http;
|
|
using System.Net.Sockets;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace ShareX.HelpersLib
|
|
{
|
|
public static class WebHelpers
|
|
{
|
|
public static async Task DownloadFileAsync(string url, string filePath)
|
|
{
|
|
if (!string.IsNullOrEmpty(url) && !string.IsNullOrEmpty(filePath))
|
|
{
|
|
FileHelpers.CreateDirectoryFromFilePath(filePath);
|
|
|
|
HttpClient client = HttpClientFactory.Create();
|
|
|
|
using (HttpResponseMessage responseMessage = await client.GetAsync(url))
|
|
{
|
|
if (responseMessage.IsSuccessStatusCode)
|
|
{
|
|
using (Stream responseStream = await responseMessage.Content.ReadAsStreamAsync())
|
|
using (FileStream fileStream = new FileStream(filePath, FileMode.Create, FileAccess.Write))
|
|
{
|
|
await responseStream.CopyToAsync(fileStream);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public static async Task<string> DownloadStringAsync(string url)
|
|
{
|
|
string response = null;
|
|
|
|
if (!string.IsNullOrEmpty(url))
|
|
{
|
|
HttpClient client = HttpClientFactory.Create();
|
|
|
|
using (HttpResponseMessage responseMessage = await client.GetAsync(url))
|
|
{
|
|
if (responseMessage.IsSuccessStatusCode)
|
|
{
|
|
response = await responseMessage.Content.ReadAsStringAsync();
|
|
}
|
|
}
|
|
}
|
|
|
|
return response;
|
|
}
|
|
|
|
public static async Task<Bitmap> DownloadImageAsync(string url)
|
|
{
|
|
Bitmap bmp = null;
|
|
|
|
if (!string.IsNullOrEmpty(url))
|
|
{
|
|
HttpClient client = HttpClientFactory.Create();
|
|
|
|
using (HttpResponseMessage responseMessage = await client.GetAsync(url, HttpCompletionOption.ResponseHeadersRead))
|
|
{
|
|
if (responseMessage.IsSuccessStatusCode && responseMessage.Content.Headers.ContentType != null)
|
|
{
|
|
string mediaType = responseMessage.Content.Headers.ContentType.MediaType;
|
|
|
|
string[] supportedImageTypes = new string[]
|
|
{
|
|
"image/png",
|
|
"image/jpeg",
|
|
"image/gif",
|
|
"image/bmp",
|
|
"image/tiff"
|
|
};
|
|
|
|
if (supportedImageTypes.Contains(mediaType, StringComparer.OrdinalIgnoreCase))
|
|
{
|
|
byte[] data = await responseMessage.Content.ReadAsByteArrayAsync();
|
|
MemoryStream memoryStream = new MemoryStream(data);
|
|
|
|
try
|
|
{
|
|
bmp = new Bitmap(memoryStream);
|
|
}
|
|
catch
|
|
{
|
|
memoryStream.Dispose();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return bmp;
|
|
}
|
|
|
|
public static async Task<string> GetFileNameFromWebServerAsync(string url)
|
|
{
|
|
string fileName = null;
|
|
|
|
if (!string.IsNullOrEmpty(url))
|
|
{
|
|
HttpClient client = HttpClientFactory.Create();
|
|
|
|
using (HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Head, url))
|
|
using (HttpResponseMessage responseMessage = await client.SendAsync(requestMessage))
|
|
{
|
|
if (responseMessage.Content.Headers.ContentDisposition != null)
|
|
{
|
|
string contentDisposition = responseMessage.Content.Headers.ContentDisposition.ToString();
|
|
|
|
if (!string.IsNullOrEmpty(contentDisposition))
|
|
{
|
|
string fileNameMarker = "filename=\"";
|
|
int beginIndex = contentDisposition.IndexOf(fileNameMarker, StringComparison.OrdinalIgnoreCase);
|
|
contentDisposition = contentDisposition.Substring(beginIndex + fileNameMarker.Length);
|
|
int fileNameLength = contentDisposition.IndexOf("\"");
|
|
fileName = contentDisposition.Substring(0, fileNameLength);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return fileName;
|
|
}
|
|
|
|
public static int GetRandomUnusedPort()
|
|
{
|
|
TcpListener listener = new TcpListener(IPAddress.Loopback, 0);
|
|
|
|
try
|
|
{
|
|
listener.Start();
|
|
return ((IPEndPoint)listener.LocalEndpoint).Port;
|
|
}
|
|
finally
|
|
{
|
|
listener.Stop();
|
|
}
|
|
}
|
|
}
|
|
} |