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//
// Repository.cs
//
// Author:
// Lluis Sanchez Gual
//
// Copyright (C) 2007 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Xml;
using System.Xml.Serialization;
using System.IO;
using System.Net;
using System.Threading;
namespace Mono.Addins.Setup
{
internal class Repository
{
RepositoryEntryCollection repositories;
RepositoryEntryCollection addins;
string name;
internal string url;
public string Name {
get { return name; }
set { name = value; }
}
public string Url {
get { return url; }
set { url = value; }
}
internal string CachedFilesDir { get; set; }
[XmlElement ("Repository", Type = typeof(ReferenceRepositoryEntry))]
public RepositoryEntryCollection Repositories {
get {
if (repositories == null)
repositories = new RepositoryEntryCollection (this);
return repositories;
}
}
[XmlElement ("Addin", Type = typeof(PackageRepositoryEntry))]
public RepositoryEntryCollection Addins {
get {
if (addins == null)
addins = new RepositoryEntryCollection (this);
return addins;
}
}
public RepositoryEntry FindEntry (string url)
{
if (Repositories != null) {
foreach (RepositoryEntry e in Repositories)
if (e.Url == url) return e;
}
if (Addins != null) {
foreach (RepositoryEntry e in Addins)
if (e.Url == url) return e;
}
return null;
}
public void AddEntry (RepositoryEntry entry)
{
entry.owner = this;
if (entry is ReferenceRepositoryEntry) {
Repositories.Add (entry);
} else {
Addins.Add (entry);
}
}
public void RemoveEntry (RepositoryEntry entry)
{
if (entry is PackageRepositoryEntry)
Addins.Remove (entry);
else
Repositories.Remove (entry);
}
public IAsyncResult BeginDownloadSupportFile (string name, AsyncCallback cb, object state)
{
FileAsyncResult res = new FileAsyncResult ();
res.AsyncState = state;
res.Callback = cb;
string cachedFile = Path.Combine (CachedFilesDir, Path.GetFileName (name));
if (File.Exists (cachedFile)) {
res.FilePath = cachedFile;
res.CompletedSynchronously = true;
res.SetDone ();
return res;
}
Uri u = new Uri (new Uri (Url), name);
if (u.Scheme == "file") {
res.FilePath = u.AbsolutePath;
res.CompletedSynchronously = true;
res.SetDone ();
return res;
}
else {
HttpWebRequest req = (HttpWebRequest) HttpWebRequest.Create (u);
res.FilePath = cachedFile;
res.Request = req;
req.BeginGetResponse (OnGotResponse, res);
}
return res;
}
void OnGotResponse (IAsyncResult ares)
{
FileAsyncResult res = (FileAsyncResult) ares.AsyncState;
try {
WebResponse resp = res.Request.EndGetResponse (ares);
string dir = Path.GetDirectoryName (res.FilePath);
lock (this) {
if (!Directory.Exists (dir))
Directory.CreateDirectory (dir);
}
byte[] buffer = new byte [8092];
using (var s = resp.GetResponseStream ()) {
using (var f = File.OpenWrite (res.FilePath)) {
int nr = 0;
while ((nr = s.Read (buffer, 0, buffer.Length)) > 0)
f.Write (buffer, 0, nr);
}
}
} catch (Exception ex) {
res.Error = ex;
}
res.SetDone ();
}
public Stream EndDownloadSupportFile (IAsyncResult ares)
{
FileAsyncResult res = ares as FileAsyncResult;
if (res == null)
throw new InvalidOperationException ("Invalid IAsyncResult instance");
if (res.Error != null)
throw res.Error;
return File.OpenRead (res.FilePath);
}
}
class FileAsyncResult: IAsyncResult
{
ManualResetEvent done;
public string FilePath;
public HttpWebRequest Request;
public AsyncCallback Callback;
public Exception Error;
public void SetDone ()
{
lock (this) {
IsCompleted = true;
if (done != null)
done.Set ();
}
if (Callback != null)
Callback (this);
}
public object AsyncState { get; set; }
public WaitHandle AsyncWaitHandle {
get {
lock (this) {
if (done == null)
done = new ManualResetEvent (IsCompleted);
}
return done;
}
}
public bool CompletedSynchronously { get; set; }
public bool IsCompleted { get; set; }
}
}
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