public async Task SetText(string text)
{
Facade facade = new Facade();
Dispatcher dispatcher = Application.Current.Dispatcher;
LinkTask task = new LinkTask
{
OnStatus = (link, status) =>
{
dispatcher.Handle(() =>
{
this.model.SetStatus(link, status);
});
},
OnCompleted = (link, resource) =>
{
dispatcher.Handle(() =>
{
this.model.Complete(link, resource);
});
},
OnLog = entry =>
{
dispatcher.Handle(() =>
{
this.OnLog.Invoke(entry);
});
}
};
this.model.ClearLinks();
this.model.SetLinks(await facade.ParseTextToLinks(text));
task.Links = this.model.GetAnalyzableLinks();
await facade.Analyze(task);
}
public async Task Analyze(LinkTask task)
{
if (task.Links.Length > 0)
{
foreach (Link link in task.Links)
{
task.OnStatus(link, "pending");
}
await Task.Run(() =>
{
Parallel.ForEach(task.Links, new ParallelOptions { MaxDegreeOfParallelism = 2 }, link =>
{
task.OnStatus.Invoke(link, "checking");
task.OnLog.Information("Analyzing '{0}'.", link.Url);
task.OnLog.Information("Starting PhantomJS");
ProcessStartInfo info = new ProcessStartInfo
{
FileName = GetPhantomPath(),
Arguments = GetScriptPath(link.Hosting) + " query " + link.Url.ToString(),
UseShellExecute = false,
RedirectStandardOutput = true,
CreateNoWindow = true,
WindowStyle = ProcessWindowStyle.Hidden,
WorkingDirectory = GetDataPath()
};
using (Process process = Process.Start(info))
{
Resource resource = new Resource
{
Url = link.Url,
Hosting = link.Hosting,
IsAvailable = true
};
PhantomCallback callback = new PhantomCallback
{
OnDownload = url => true,
OnFileName = text =>
{
resource.Name = text;
return true;
},
OnFileSize = text =>
{
resource.Size = text;
return true;
},
OnFileStatus = text =>
{
resource.IsAvailable = false;
return false;
},
OnFatal = text =>
{
task.OnLog.Warning(text);
return true;
},
OnCaptcha = text => Task.FromResult(false),
OnDebug = text =>
{
task.OnLog.Debug(text);
return true;
},
OnFallback = text => true,
OnMessage = text => true,
OnRaw = text => { }
};
this.Handle(callback, CancellationToken.None, process).Wait();
if (resource.IsAvailable == false)
{
task.OnStatus(link, "unavailable");
}
if (resource.IsAvailable == true)
{
task.OnStatus(link, "available");
}
if (resource.Name != null && resource.Size != null)
{
task.OnCompleted(link, resource);
}
process.WaitForExit();
}
});
});
}
}
