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 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);
}
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);
}
res.FilePath = cachedFile;
WebRequestHelper.GetResponseAsync(() => (HttpWebRequest)WebRequest.Create(u)).ContinueWith(t => {
try {
var resp = t.Result;
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;
}
});
return(res);
}
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));
}
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;
}
res.FilePath = cachedFile;
WebRequestHelper.GetResponseAsync (() => (HttpWebRequest)WebRequest.Create (u)).ContinueWith (t => {
try {
var resp = t.Result;
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;
}
});
return res;
}