forked from mia/Aegisub
56 lines
2.3 KiB
C#
56 lines
2.3 KiB
C#
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// Copyright (c) 2014, Thomas Goyne <plorkyeran@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// Aegisub Project http://www.aegisub.org/
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namespace BuildTasks {
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public class DownloadTgzFile : Microsoft.Build.Utilities.Task {
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public string Url { get; set; }
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public string Destination { get; set; }
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public string OutputFile { get; set; }
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public string Hash { get; set; }
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private void DownloadArchive(string url, string unpackDest) {
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var downloadStream = new System.Net.WebClient().OpenRead(url);
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var gzStream = new ICSharpCode.SharpZipLib.GZip.GZipInputStream(downloadStream);
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var tarStream = new ICSharpCode.SharpZipLib.Tar.TarInputStream(gzStream);
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var tarArchive = ICSharpCode.SharpZipLib.Tar.TarArchive.CreateInputTarArchive(tarStream);
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tarArchive.ExtractContents(unpackDest);
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}
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public override bool Execute() {
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try {
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using (var fs = System.IO.File.OpenRead(this.OutputFile)) {
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var hash = new System.Security.Cryptography.SHA1Managed().ComputeHash(fs);
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if (System.BitConverter.ToString(hash).Replace("-", "").ToLower() == this.Hash)
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return true;
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}
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}
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catch (System.IO.IOException) {
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// Need to download if file not present or not readable
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}
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try {
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DownloadArchive(this.Url, this.Destination);
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}
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catch (System.Exception e) {
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this.Log.LogErrorFromException(e);
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return false;
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}
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return true;
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}
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}
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}
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