public UnifiedResponse Search(string query)
{
var wcl = this.getClient();
string response = wcl.DownloadString(SearchRequestUrl(query));
var output = new UnifiedResponse();
if (string.IsNullOrWhiteSpace(response))
{
output.Success = false;
output.Error = "Cannot get server response";
return output;
}
else
{
try
{
dynamic searchres = new JavaScriptSerializer().Deserialize<dynamic>(response);
output.Success = true;
output.Results = new List<Result>();
var items = (dynamic[])searchres["results"];
foreach (var item in items)
{
if (item["type"] != "release" && item["type"] != "master") continue;
var release = new Result();
release.Thumb = ResUrl(item["thumb"]);
release.AdditionalInfo = item["resource_url"];
release.Artist = release.Album = item["title"];
release.Request = query;
output.Results.Add(release);
}
output.ResultsCount = output.Results.Count;
return output;
}
catch (Exception e)
{
output.Success = false;
output.Error = e.Message;
return output;
}
}
}
private void SearchWorker(string Query, out List<UnifiedResponse> Response)
{
var ThreadPool = new List<Thread>();
var ContextPool = Services.Providers.Values.ToArray();
var Results = new UnifiedResponse[ContextPool.Length];
for (int i = 0; i < ContextPool.Length; i++)
{
int closure = i;
Results[i] = new UnifiedResponse();
var thread = new Thread(() => Results[closure] = ContextPool[closure].Provider.Search(Query));
thread.Start();
ThreadPool.Add(thread);
}
while(ThreadPool.Any(t => t.IsAlive))
{
Application.DoEvents();
}
Response = Results.ToList();
}
UnifiedResponse IServiceProvider.Search(string query)
{
string url = GetExecutionUrl(query);
var response = new UnifiedResponse();
string xresp = Http.getText(url);
if (string.IsNullOrEmpty(xresp))
{
response.Success = false;
response.Error = "No http response from Last.fm API";
return response;
}
var doc = new XmlDocument();
doc.LoadXml(xresp);
XmlNode error = doc.GetElementById("error");
if (error != null)
{
response.Success = false;
response.Error = string.Format(
"Last.fm API returns error #{0}: {1}",
error.Attributes["code"],
error.InnerXml
);
return response;
}
var nsmanager = new XmlNamespaceManager(doc.NameTable);
nsmanager.AddNamespace("opensearch", "http://a9.com/-/spec/opensearch/1.1/");
var countnode = doc.SelectSingleNode("/lfm/results/opensearch:totalResults", nsmanager);
response.ResultsCount = countnode == null ? 0 : Convert.ToInt32(countnode.InnerXml);
var results = doc.GetElementsByTagName("album");
foreach (XmlNode result in results)
{
var r = new Result();
r.Request = query;
r.Artist = result["artist"] == null ? string.Empty : result["artist"].InnerText;
r.Album = result["name"] == null ? string.Empty : result["name"] .InnerText;
XmlNode urlnode = null;
if ((urlnode = result.SelectSingleNode("descendant::image[@size='mega']")) != null)
{
r.Width = r.Height = 500;
}
else if ((urlnode = result.SelectSingleNode("descendant::image[@size='extralarge']")) != null)
{
r.Width = r.Height = 300;
}
else if((urlnode = result.SelectSingleNode("descendant::image[@size='large']")) != null)
{
r.Width = r.Height = 174;
}
if (urlnode != null)
{
r.Url = r.Thumb = urlnode.InnerXml;
}
response.Results.Add(r);
}
return response;
}
public UnifiedResponse Search(string query)
{
var xmlstring = Tools.Http.getText(BuildSearchRequestUrl(query));
if (string.IsNullOrEmpty(xmlstring))
{
return new UnifiedResponse
{
Success = false,
Error = "Server answer was null"
};
}
xmlstring = Regex.Replace(xmlstring, "xmlns=[^>]*>", ">"); // hack to avoid namespace manager: just cut namespace
var response = new XmlDocument();
var output = new UnifiedResponse();
try
{
response.LoadXml(xmlstring);
}
catch(Exception e)
{
output.Success = false;
output.Error = e.Message;
}
var root = response.SelectSingleNode("/ItemSearchResponse");
if (root == null)
{
output.Success = false;
output.Error = "Cannot parse response";
return output;
}
var valid = root.SelectSingleNode("Items/Request/IsValid");
if (valid != null && valid.InnerXml == "True")
{
output.Success = true;
var items = root.SelectNodes("//Item");
foreach (XmlNode item in items)
{
var imagenode = item.SelectSingleNode("LargeImage");
if (imagenode == null)
{
continue;
}
var r = new Result();
try
{
r.Artist = item.SelectSingleNode("ItemAttributes/Creator").InnerXml;
r.Album = item.SelectSingleNode("ItemAttributes/Title").InnerXml;
r.Url = imagenode.SelectSingleNode("URL").InnerXml;
r.Width = Convert.ToInt32(imagenode.SelectSingleNode("Width").InnerXml);
r.Height = Convert.ToInt32(imagenode.SelectSingleNode("Height").InnerXml);
var thumbnode = item.SelectSingleNode("MediumImage");
r.Thumb = thumbnode == null ? r.Url : thumbnode.SelectSingleNode("URL").InnerXml;
}
catch(Exception)
{
continue;
}
output.Results.Add(r);
}
output.ResultsCount = output.Results.Count;
}
return output;
}
