/// <summary>
/// Raises the ResultsRetrieved event
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the original request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the original freetext query or the original genre name
/// </param>
public void RaiseRequestResultRetrieved(LiveRadioRequestType request_type, string query)
{
List <DatabaseTrackInfo> result;
try {
List <DatabaseTrackInfo> raw_result;
if (request_type == LiveRadioRequestType.ByGenre)
{
raw_result = new List <DatabaseTrackInfo> (cached_results["Genre:" + query].ToArray());
}
else
{
raw_result = new List <DatabaseTrackInfo> (cached_results[query].ToArray());
}
result = new List <DatabaseTrackInfo> (raw_result);
foreach (DatabaseTrackInfo track in raw_result)
{
result[result.IndexOf(track)] = new DatabaseTrackInfo(track);
}
} catch (Exception e) {
result = null;
Hyena.Log.DebugFormat("[LiveRadioBasePlugin\"{0}\"]<RaiseRequestResultRetrieved> error {1}", Name, e.Message);
RaiseErrorReturned("General Error", e.Message);
}
OnRequestResultRetrieved(request_type, query, result);
}
/// <summary>
/// Lookup the query in the cached station track entries
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
protected override void RetrieveRequest(LiveRadioRequestType request_type, string query)
{
string key;
if (request_type == LiveRadioRequestType.ByGenre)
{
key = new Genre(query).GenreKey;
if (!cached_results.ContainsKey(key))
{
cached_results.Add(key, new List <DatabaseTrackInfo> ());
}
}
if (request_type == LiveRadioRequestType.ByFreetext)
{
key = query;
if (!cached_results.ContainsKey(key))
{
List <DatabaseTrackInfo> newlist = new List <DatabaseTrackInfo> ();
foreach (KeyValuePair <string, List <DatabaseTrackInfo> > entry in cached_results)
{
newlist.AddRange(entry.Value.FindAll(delegate(DatabaseTrackInfo track) { return(QueryString(track, query)); }));
}
cached_results.Add(key, newlist);
}
}
}
/// <summary>
/// Method to invoke the RequestResultRetrieved event
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the original request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the original freetext query or the original genre name
/// </param>
/// <param name="result">
/// A <see cref="List<DatabaseTrackInfo>"/> -- the resulting list of DatabaseTrackInfo objects for the query
/// </param>
protected void OnRequestResultRetrieved(LiveRadioRequestType request_type, string query, List <DatabaseTrackInfo> result)
{
RequestResultRetrievedEventHandler handler = RequestResultRetrieved;
if (handler != null)
{
handler(this, query, request_type, result);
}
}
/// <summary>
/// Method capsuling the actual RetrieveRequest worker method with a background worker thread
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
public void ExecuteRequest(LiveRadioRequestType request_type, string query)
{
BackgroundWorker request_thread = new BackgroundWorker();
request_thread.DoWork += DoExecuteRequest;
request_thread.RunWorkerCompleted += OnDoExecuteRequestFinished;
LiveRadioRequestObject request_object = new LiveRadioRequestObject(request_type, query);
request_thread.RunWorkerAsync(request_object);
}
/// <summary>
/// Event Handler for the event that a plugin has retreived a result list for a query
/// </summary>
/// <param name="sender">
/// A <see cref="System.Object"/> -- the plugin that has retrieved the results
/// </param>
/// <param name="request">
/// A <see cref="System.String"/> -- the original request string, either freetext or the genre name
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the original request type
/// </param>
/// <param name="result">
/// A <see cref="List<DatabaseTrackInfo>"/> -- the results list
/// </param>
void OnPluginRequestResultRetrieved(object sender,
string request,
LiveRadioRequestType request_type,
List <DatabaseTrackInfo> result)
{
if (result != null)
{
ILiveRadioPlugin plugin = sender as ILiveRadioPlugin;
AddStatistic(LiveRadioStatisticType.Message,
plugin.Name,
AddinManager.CurrentLocalizer.GetString("Requested Results Returned"),
AddinManager.CurrentLocalizer.GetString("The plugin has returned a list of results for a genre or freetext query"),
result.Count);
}
}
/// <summary>
/// Retrieve and parse a live query on the shoutcast directory
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
protected override void RetrieveRequest(LiveRadioRequestType request_type, string query)
{
string request;
if (request_type == LiveRadioRequestType.ByGenre)
{
request = base_url + request_url + genre_request + query;
}
else
{
request = base_url + request_url + freetext_request + query;
}
XmlDocument document = RetrieveXml(request);
if (document != null)
{
ParseXmlResponse(document, request_type, query);
}
}
/// <summary>
/// Lookup the query in the cached station track entries
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
protected override void RetrieveRequest (LiveRadioRequestType request_type, string query)
{
string key;
if (request_type == LiveRadioRequestType.ByGenre) {
key = new Genre(query).GenreKey;
if (!cached_results.ContainsKey (key)) {
cached_results.Add (key, new List<DatabaseTrackInfo> ());
}
}
if (request_type == LiveRadioRequestType.ByFreetext) {
key = query;
if (!cached_results.ContainsKey (key)) {
List<DatabaseTrackInfo> newlist = new List<DatabaseTrackInfo> ();
foreach (KeyValuePair<string, List<DatabaseTrackInfo>> entry in cached_results) {
newlist.AddRange (entry.Value.FindAll (delegate (DatabaseTrackInfo track) { return QueryString (track, query); }));
}
cached_results.Add (key, newlist);
}
}
}
/// <summary>
/// Retrieve and parse a live query on the realradios directory
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
protected override void RetrieveRequest(LiveRadioRequestType request_type, string query)
{
string key;
if (request_type == LiveRadioRequestType.ByGenre)
{
key = "Genre:" + query;
}
else
{
key = query;
}
if (cached_results.ContainsKey(key))
{
return;
}
string request;
if (request_type == LiveRadioRequestType.ByGenre)
{
request = genres.Find(delegate(Genre g) {
return(g.Name.Equals(query));
}
).Hyperlink;
}
else
{
request = base_url + freetext_url + query;
}
string document = RetrieveHtml(request);
if (document != null)
{
ParseHtmlResponse(document, request_type, query);
}
}
/// <summary>
/// Retrieve and parse a live query on the shoutcast directory
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
protected override void RetrieveRequest(LiveRadioRequestType request_type, string query)
{
if (request_type == LiveRadioRequestType.ByGenre)
{
XmlDocument document = RetrieveXml(base_url + genre_url + query + ".xspf");
if (document != null)
{
ParseXspf(document, new Genre(query));
}
}
else
{
if (cached_results.ContainsKey(query))
{
return;
}
string doc = RetrieveHtml(search_url + freetext_request + query);
if (!String.IsNullOrEmpty(doc))
{
ParseSearchResult(doc, query);
}
}
}
/// <summary>
/// Handles when a new result for a previous query request is received from the corresponding plugin. Transfers the
/// received result to the plugin's source, and if there are none, set up a fake entry.
/// </summary>
/// <param name="sender">
/// A <see cref="System.Object"/> -- The plugin that sent the results. Implements ILiveRadioPlugin.
/// </param>
/// <param name="request">
/// A <see cref="System.String"/> -- The requested query string, either a genre name or the freetext (see request_type).
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- The type of the request.
/// </param>
/// <param name="result">
/// A <see cref="List<DatabaseTrackInfo>"/> -- A list of DatabaseTrackInfo objects that fulfil the query.
/// </param>
void OnPluginRequestResultRetrieved(object sender,
string request,
LiveRadioRequestType request_type,
List <DatabaseTrackInfo> result)
{
if ((request_type == LiveRadioRequestType.ByFreetext) ||
(filter_box.GetSelectedGenre().Name.Equals(request) && request_type == LiveRadioRequestType.ByGenre))
{
if (result == null)
{
SetFakeTrack(AddinManager.CurrentLocalizer.GetString("Error... Please Reload"));
}
else if (result.Count > 0)
{
plugin.PluginSource.SetStations(result);
main_scrolled_window.Sensitive = true;
}
else
{
string message = (request_type == LiveRadioRequestType.ByGenre ? "Error... Please Reload" : "No Results");
SetFakeTrack(AddinManager.CurrentLocalizer.GetString(message));
}
}
}
/// <summary>
/// Parses the response to a query request and fills the results cache
/// </summary>
/// <param name="xml_response">
/// A <see cref="XmlDocument"/> -- the XML document containing the response to the query request
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the requested query, freetext or the genre name
/// </param>
private void ParseXmlResponse(XmlDocument xml_response, LiveRadioRequestType request_type, string query)
{
string tunein_url = "";
XmlNodeList XML_tunein_nodes = xml_response.GetElementsByTagName("tunein");
foreach (XmlNode node in XML_tunein_nodes)
{
XmlAttributeCollection xml_attributes = node.Attributes;
try {
tunein_url = xml_attributes.GetNamedItem("base").InnerText;
break;
}
catch (Exception e) {
Log.Warning("[ShoutCastPlugin] <ParseXmlResponse> ERROR: ", e);
RaiseErrorReturned("XML Parse Error", e.Message);
return;
}
}
XmlNodeList XML_station_nodes = xml_response.GetElementsByTagName("station");
string key;
if (request_type == LiveRadioRequestType.ByGenre)
{
key = "Genre:" + query;
if (!cached_results.ContainsKey(key))
{
cached_results[key] = new List <DatabaseTrackInfo> (XML_station_nodes.Count);
}
}
else
{
key = query;
if (!cached_results.ContainsKey(key))
{
cached_results[key] = new List <DatabaseTrackInfo> (XML_station_nodes.Count);
}
}
cached_results[key].Clear();
foreach (XmlNode node in XML_station_nodes)
{
XmlAttributeCollection xml_attributes = node.Attributes;
try {
string name = xml_attributes.GetNamedItem("name").InnerText;
string media_type = xml_attributes.GetNamedItem("mt").InnerText;
string id = xml_attributes.GetNamedItem("id").InnerText;
string genre = xml_attributes.GetNamedItem("genre").InnerText;
string now_playing = xml_attributes.GetNamedItem("ct").InnerText;
string bitrate = xml_attributes.GetNamedItem("br").InnerText;
int id_int;
int bitrate_int;
if (!Int32.TryParse(id.Trim(), out id_int))
{
continue; //Something wrong with id, skip this
}
DatabaseTrackInfo new_station = new DatabaseTrackInfo();
new_station.Uri = new SafeUri(play_url + tunein_url + "?id=" + id);
new_station.ArtistName = "www.shoutcast.com";
new_station.Genre = genre;
new_station.TrackTitle = name;
new_station.Comment = now_playing;
new_station.AlbumTitle = now_playing;
new_station.MimeType = media_type;
new_station.ExternalId = id_int;
new_station.PrimarySource = source;
new_station.IsLive = true;
Int32.TryParse(bitrate.Trim(), out bitrate_int);
new_station.BitRate = bitrate_int;
new_station.IsLive = true;
cached_results[key].Add(new_station);
}
catch (Exception e) {
Log.Warning("[ShoutCastPlugin] <ParseXmlResponse> ERROR: ", e);
RaiseErrorReturned("XML Parse Error", e.Message);
continue;
}
}
}
/// <summary>
/// Parses the response to a query request and fills the results cache
/// </summary>
/// <param name="xml_response">
/// A <see cref="XmlDocument"/> -- the XML document containing the response to the query request
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the requested query, freetext or the genre name
/// </param>
private void ParseXmlResponse(XmlDocument xml_response, LiveRadioRequestType request_type, string query)
{
Log.Debug ("[Live365Plugin] <ParseXmlResponse> Start");
string session = GetSession ();
List<string> pages = new List<string> ();
pages.Add(null);
XmlNodeList pagination_nodes = xml_response.GetElementsByTagName ("PAGINATION_PAGES");
foreach (XmlNode node in pagination_nodes)
{
string url = null;
bool url_valid = false;
XmlNodeList page_nodes = node.ChildNodes;
foreach (XmlNode page_node in page_nodes)
{
try {
if (page_node.LocalName.Equals("PAGINATION_DESC")
&& !page_node.InnerText.Trim ().Equals ("1")
&& !page_node.InnerText.Trim ().Equals ("Next"))
url_valid = true;
if (page_node.LocalName.Equals("PAGINATION_LINK"))
url = page_node.InnerText;
}
catch (Exception e) {
Log.Exception ("[Live365Plugin] <ParseXmlResponse> ERROR: ", e);
RaiseErrorReturned ("XML Parse Error", e.Message);
return;
}
}
if (!String.IsNullOrEmpty(url) && url_valid)
pages.Add(url);
}
Log.Debug ("[Live365Plugin] <ParseXmlResponse> analyzing stations");
string key;
if (request_type == LiveRadioRequestType.ByGenre) {
key = "Genre:" + query;
if (!cached_results.ContainsKey (key)) {
cached_results[key] = new List<DatabaseTrackInfo> ();
}
} else {
key = query;
if (!cached_results.ContainsKey (key)) {
cached_results[key] = new List<DatabaseTrackInfo> ();
}
}
cached_results[key].Clear ();
foreach (string page in pages)
{
XmlDocument doc;
if (String.IsNullOrEmpty(page)) {
doc = xml_response;
} else {
doc = RetrieveXml(page);
}
XmlNodeList XML_station_nodes = doc.GetElementsByTagName ("LIVE365_STATION");
foreach (XmlNode node in XML_station_nodes)
{
string name = null;
string access = null;
string ex_id = null;
string url = null;
string broadcaster = null;
string description = null;
string keywords = null;
string genre = null;
string bitrate = null;
string rating = null;
string status = null;
string location = null;
XmlNodeList childnodes = node.ChildNodes;
foreach (XmlNode child in childnodes)
{
try {
if (child.LocalName.Equals ("STATION_ADDRESS"))
url = child.InnerText;
else if (child.LocalName.Equals ("STATION_ID"))
ex_id = child.InnerText;
else if (child.LocalName.Equals ("STATION_BROADCASTER"))
broadcaster = child.InnerText;
else if (child.LocalName.Equals ("STATION_TITLE"))
name = child.InnerText;
else if (child.LocalName.Equals ("STATION_DESCRIPTION"))
description = child.InnerText;
else if (child.LocalName.Equals ("STATION_KEYWORDS"))
keywords = child.InnerText;
else if (child.LocalName.Equals ("STATION_GENRE"))
genre = child.InnerText;
else if (child.LocalName.Equals ("STATION_CONNECTION"))
bitrate = child.InnerText;
else if (child.LocalName.Equals ("STATION_RATING"))
rating = child.InnerText;
else if (child.LocalName.Equals ("STATION_STATUS"))
status = child.InnerText;
else if (child.LocalName.Equals ("LISTENER_ACCESS"))
access = child.InnerText;
else if (child.LocalName.Equals ("STATION_LOCATION"))
location = child.InnerText;
}
catch (Exception e) {
Log.Exception ("[Live365Plugin] <ParseXmlResponse> ERROR: ", e);
RaiseErrorReturned ("General Error", e.Message);
continue;
}
}
int bitrate_int;
int id_int;
int rating_int;
if (!String.IsNullOrEmpty (access)
&& !String.IsNullOrEmpty (status)
&& (access.Equals ("PUBLIC") || UseCredentials)
&& status.Equals ("OK"))
{
DatabaseTrackInfo new_station = new DatabaseTrackInfo ();
if (UseCredentials)
{
url = url.Replace (replace_url, playlist_url);
url += session;
}
new_station.Uri = new SafeUri (url);
new_station.ArtistName = broadcaster;
new_station.Genre = genre;
new_station.TrackTitle = name;
new_station.Comment = description + location + keywords;
Int32.TryParse (rating.Trim (), out rating_int);
new_station.Rating = rating_int;
Int32.TryParse (ex_id.Trim (), out id_int);
new_station.ExternalId = id_int;
new_station.PrimarySource = source;
new_station.IsLive = true;
Int32.TryParse (bitrate.Trim (), out bitrate_int);
new_station.BitRate = bitrate_int;
new_station.IsLive = true;
cached_results[key].Add (new_station);
}
}
}
Log.Debug ("[Live365Plugin] <ParseXmlResponse> End");
}
/// <summary>
/// Event Handler for the event that a plugin has retreived a result list for a query
/// </summary>
/// <param name="sender">
/// A <see cref="System.Object"/> -- the plugin that has retrieved the results
/// </param>
/// <param name="request">
/// A <see cref="System.String"/> -- the original request string, either freetext or the genre name
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the original request type
/// </param>
/// <param name="result">
/// A <see cref="List<DatabaseTrackInfo>"/> -- the results list
/// </param>
void OnPluginRequestResultRetrieved(object sender,
string request,
LiveRadioRequestType request_type,
List<DatabaseTrackInfo> result)
{
if (result != null)
{
ILiveRadioPlugin plugin = sender as ILiveRadioPlugin;
AddStatistic (LiveRadioStatisticType.Message,
plugin.Name,
AddinManager.CurrentLocalizer.GetString ("Requested Results Returned"),
AddinManager.CurrentLocalizer.GetString ("The plugin has returned a list of results for a genre or freetext query"),
result.Count);
}
}
public LiveRadioRequestObject(LiveRadioRequestType request_type, string query)
: base()
{
this.query = query;
this.request_type = request_type;
}
/// <summary>
/// Retrieve and parse a live query on the shoutcast directory
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
protected override void RetrieveRequest(LiveRadioRequestType request_type, string query)
{
string request;
if (request_type == LiveRadioRequestType.ByGenre) {
request = base_url + request_url + genre_request + query;
} else {
request = base_url + request_url + freetext_request + query;
}
XmlDocument document = RetrieveXml(request);
if (document != null) ParseXmlResponse(document, request_type, query);
}
/// <summary> /// Actual method that does the work of retrieving the results of a user query from an outside /// source. This method must take care of retrieving the data (possibly using the provided /// RetrieveXML method). parsing it, and filling the /// /// Dictionary<string key, List<DatabaseTrackInfo> track> cached_results /// /// member of this class with the result. /// </summary> /// <param name="request_type"> /// A <see cref="LiveRadioRequestType"/> -- the type of the request /// </param> /// <param name="query"> /// A <see cref="System.String"/> -- the freetext query or the genre name /// </param> protected abstract void RetrieveRequest(LiveRadioRequestType request_type, string query);
/// <summary> /// Actual method that does the work of retrieving the results of a user query from an outside /// source. This method must take care of retrieving the data (possibly using the provided /// RetrieveXML method). parsing it, and filling the /// /// Dictionary<string key, List<DatabaseTrackInfo> track> cached_results /// /// member of this class with the result. /// </summary> /// <param name="request_type"> /// A <see cref="LiveRadioRequestType"/> -- the type of the request /// </param> /// <param name="query"> /// A <see cref="System.String"/> -- the freetext query or the genre name /// </param> protected abstract void RetrieveRequest(LiveRadioRequestType request_type, string query);
/// <summary>
/// Method capsuling the actual RetrieveRequest worker method with a background worker thread
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
public void ExecuteRequest(LiveRadioRequestType request_type, string query)
{
BackgroundWorker request_thread = new BackgroundWorker ();
request_thread.DoWork += DoExecuteRequest;
request_thread.RunWorkerCompleted += OnDoExecuteRequestFinished;
LiveRadioRequestObject request_object = new LiveRadioRequestObject (request_type, query);
request_thread.RunWorkerAsync (request_object);
}
/// <summary>
/// Raises the ResultsRetrieved event
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the original request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the original freetext query or the original genre name
/// </param>
public void RaiseRequestResultRetrieved(LiveRadioRequestType request_type, string query)
{
List<DatabaseTrackInfo> result;
try {
if (request_type == LiveRadioRequestType.ByGenre) {
result = cached_results["Genre:" + query];
} else {
result = cached_results[query];
}
foreach (DatabaseTrackInfo track in result)
result[result.IndexOf (track)] = new DatabaseTrackInfo (track);
Hyena.Log.DebugFormat ("[LiveRadioBasePlugin\"{0}\"]<RaiseRequestResultRetrieved> result contains {1} entries for query {2}", Name, result.Count, query);
} catch (Exception e) {
result = null;
Hyena.Log.DebugFormat ("[LiveRadioBasePlugin\"{0}\"]<RaiseRequestResultRetrieved> error {1}", Name, e.Message);
RaiseErrorReturned ("General Error", e.Message);
}
OnRequestResultRetrieved (request_type, query, result);
}
/// <summary>
/// Retrieve and parse a live query on the realradios directory
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
protected override void RetrieveRequest(LiveRadioRequestType request_type, string query)
{
string key;
if (request_type == LiveRadioRequestType.ByGenre) {
key = "Genre:" + query;
} else {
key = query;
}
if (cached_results.ContainsKey (key)) {
return;
}
string request;
if (request_type == LiveRadioRequestType.ByGenre) {
request = genres.Find (delegate (Genre g) {
return g.Name.Equals(query);
}
).Hyperlink;
} else {
request = base_url + freetext_url + query;
}
string document = RetrieveHtml(request);
if (document != null) ParseHtmlResponse(document, request_type, query);
}
/// <summary>
/// Parses the response to a query request and fills the results cache
/// </summary>
/// <param name="xml_response">
/// A <see cref="XmlDocument"/> -- the XML document containing the response to the query request
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the requested query, freetext or the genre name
/// </param>
private void ParseHtmlResponse(string html, LiveRadioRequestType request_type, string query)
{
int pages = 1;
string pagerequest = null;
if (html.Contains ("\" title=\"Go to last page\""))
{
pagerequest = html.Remove (html.IndexOf ("\" title=\"Go to last page\""));
pagerequest = pagerequest.Substring (pagerequest.LastIndexOf ("\"") + 1);
string page = pagerequest.Substring (pagerequest.LastIndexOf ("=") + 1);
pagerequest = pagerequest.Remove (pagerequest.IndexOf ("=") + 1);
try
{
pages = Int16.Parse (page);
}
catch {}
}
string full_html = null;
for (int p = 1; p <= pages; p++)
{
List<char> badchars = new List<char> ();
foreach (char c in html)
{
if (char.IsControl (c) || char.IsSeparator (c) || char.IsWhiteSpace (c) || char.GetNumericValue (c) == 13 || char.GetNumericValue (c) == 12)
if (!badchars.Contains (c))
badchars.Add (c);
}
foreach (Char c in badchars)
html = html.Replace (c, ' ');
html = Regex.Replace (html, @"^.*<div class=""station-list"">", "<div>");
html = Regex.Replace (html, @"<img[^>]*>", "<br/>");
if (html.Contains ("ul class=\"pager\""))
{
html = Regex.Replace (html, @"<div class=""item-list"">.*$", "<br/>");
} else {
html = Regex.Replace (html, @"<div id=""content-footer"".*$", "<div/>");
html = Regex.Replace (html, @"> *<", "><");
html = Regex.Replace (html, @"</div></div></div><div/>", "<br/>");
}
html = Regex.Replace (html, @"<br>", "<br/>");
full_html = full_html + html;
if (p < pages)
{
html = RetrieveHtml (pagerequest + (p + 1));
}
}
html = "<xml>" + full_html + "</xml>";
XmlDocument doc = new XmlDocument ();
try
{
doc.LoadXml (html);
}
catch (Exception e)
{
Log.DebugFormat ("[RealRadiosPlugin]<ParseSearchResult> Parse Error: {0}", e.Message);
RaiseErrorReturned ("General Error", e.Message);
return;
}
string key;
if (request_type == LiveRadioRequestType.ByGenre) {
key = "Genre:" + query;
} else {
key = query;
}
cached_results[key] = new List<DatabaseTrackInfo> ();
foreach (XmlNode snode in doc.GetElementsByTagName ("div"))
{
if (snode.Name.Equals ("div") && snode.Attributes != null && snode.Attributes.Count > 0)
{
try
{
string location = null;
string frequency = null;
string title = null;
string preurl = null;
if (snode.Attributes.GetNamedItem ("class").InnerText.Equals ("station"))
{
preurl = snode.Attributes.GetNamedItem ("rel").InnerText.Replace ("station-","");
foreach (XmlNode node in snode.ChildNodes)
{
if (node.Attributes.GetNamedItem ("class").InnerText.Equals ("station-info"))
{
foreach (XmlNode child in node.SelectNodes ("descendant::*"))
{
if (child.Name.Equals ("a"))
{
title = child.InnerText;
}
else if (child.Name.Equals ("span"))
{
if (child.Attributes.GetNamedItem ("class").InnerText.Equals ("frequency"))
{
frequency = child.InnerText;
}
else if (child.Attributes.GetNamedItem ("class").InnerText.Equals ("location"))
{
location = child.InnerText;
}
}
}
DatabaseTrackInfo new_station = new DatabaseTrackInfo ();
new_station.ArtistName = location;
new_station.Genre = query;
new_station.Comment = frequency;
new_station.TrackTitle = title;
new_station.PrimarySource = source;
new_station.Copyright = preurl;
new_station.IsLive = true;
cached_results[key].Add (new_station);
}
}
}
}
catch (Exception e) {
Log.DebugFormat ("[RealRadiosPlugin]<ParseSearchResult> XML Parse Error {0}", e.Message);
RaiseErrorReturned ("General Error", e.Message);
continue;
}
}
}
}
/// <summary>
/// Parses the response to a query request and fills the results cache
/// </summary>
/// <param name="xml_response">
/// A <see cref="XmlDocument"/> -- the XML document containing the response to the query request
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the requested query, freetext or the genre name
/// </param>
private void ParseHtmlResponse(string html, LiveRadioRequestType request_type, string query)
{
int pages = 1;
string pagerequest = null;
if (html.Contains ("\" title=\"Go to last page\""))
{
pagerequest = html.Remove (html.IndexOf ("\" title=\"Go to last page\""));
pagerequest = pagerequest.Substring (pagerequest.LastIndexOf ("\"") + 1);
string page = pagerequest.Substring (pagerequest.LastIndexOf ("=") + 1);
pagerequest = pagerequest.Remove (pagerequest.IndexOf ("=") + 1);
try
{
pages = Int16.Parse (page);
}
catch {}
Log.DebugFormat ("[RealRadiosPlugin] Parsing Html with {0} pages", page);
}
string full_html = null;
for (int p = 1; p <= pages; p++)
{
List<char> badchars = new List<char> ();
foreach (char c in html)
{
if (char.IsControl (c) || char.IsSeparator (c) || char.IsWhiteSpace (c) || char.GetNumericValue (c) == 13 || char.GetNumericValue (c) == 12)
if (!badchars.Contains (c))
badchars.Add (c);
}
foreach (Char c in badchars)
html = html.Replace (c, ' ');
html = Regex.Replace (html, @"^.*<div class=""station-list"">", "<div>");
html = Regex.Replace (html, @"<img[^>]*>", "<br/>");
if (html.Contains ("ul class=\"pager\""))
{
html = Regex.Replace (html, @"<div class=""item-list"">.*$", "<br/>");
} else {
html = Regex.Replace (html, @"<div id=""content-footer"".*$", "<div/>");
html = Regex.Replace (html, @"> *<", "><");
html = Regex.Replace (html, @"</div></div></div><div/>", "<br/>");
}
html = Regex.Replace (html, @"<br>", "<br/>");
full_html = full_html + html;
if (p < pages)
{
Log.DebugFormat ("[RealRadiosPlugin] retrieving page {0}", pagerequest + (p + 1));
html = RetrieveHtml (pagerequest + (p + 1));
}
}
html = "<xml>" + full_html + "</xml>";
XmlDocument doc = new XmlDocument ();
try
{
doc.LoadXml (html);
}
catch (Exception e)
{
Log.DebugFormat ("[RealRadiosPlugin]<ParseSearchResult> Parse Error: {0}", e.Message);
RaiseErrorReturned ("General Error", e.Message);
Log.DebugFormat ("XML: {0}", html);
return;
}
string key;
if (request_type == LiveRadioRequestType.ByGenre) {
key = "Genre:" + query;
} else {
key = query;
}
cached_results[key] = new List<DatabaseTrackInfo> ();
foreach (XmlNode snode in doc.GetElementsByTagName ("div"))
{
if (snode.Name.Equals ("div") && snode.Attributes != null && snode.Attributes.Count > 0)
{
//Log.DebugFormat ("[RealRadiosPlugin] found div with class {0}", node.Attributes.GetNamedItem ("class").InnerText);
try
{
/*
<div class="station" rel="station-54437">
<div class="pre">
<span class="index">03</span>
</div>
<div class="station-info">
<div class="fade"></div>
<div class="station-linked favstar medium">
<a href="http://www.realradios.com/north-america/united-states/1club-fm/1club-fm-90s-decade" title="1Club.fm 90s Decade">1Club.fm 90s Decade</a>
</div>
<div class="meta">
<span class="frequency"></span>
<span class="location">United States</span>
</div>
</div>
</div>
*/
string location = null;
string frequency = null;
string title = null;
//string url = null;
string preurl = null;
if (snode.Attributes.GetNamedItem ("class").InnerText.Equals ("station"))
{
preurl = snode.Attributes.GetNamedItem ("rel").InnerText.Replace ("station-","");
foreach (XmlNode node in snode.ChildNodes)
{
if (node.Attributes.GetNamedItem ("class").InnerText.Equals ("station-info"))
{
//Log.DebugFormat ("[RealRadiosPlugin] station info found. HasNodes: {0}", node.HasChildNodes);
foreach (XmlNode child in node.SelectNodes ("descendant::*"))
{
//Log.DebugFormat ("[RealRadiosPlugin] {1} node processing: {0}", child.InnerXml, child.Name);
if (child.Name.Equals ("a"))
{
//Log.Debug ("[RealRadiosPlugin] found <a>");
//url = child.Attributes.GetNamedItem ("href").InnerText;
title = child.InnerText;
}
else if (child.Name.Equals ("span"))
{
if (child.Attributes.GetNamedItem ("class").InnerText.Equals ("frequency"))
{
//Log.Debug ("[RealRadiosPlugin] found <span> with frequency");
frequency = child.InnerText;
}
else if (child.Attributes.GetNamedItem ("class").InnerText.Equals ("location"))
{
//Log.Debug ("[RealRadiosPlugin] found <span> with location");
location = child.InnerText;
}
}
}
DatabaseTrackInfo new_station = new DatabaseTrackInfo ();
new_station.ArtistName = location;
new_station.Genre = query;
new_station.Comment = frequency;
new_station.TrackTitle = title;
new_station.PrimarySource = source;
new_station.Copyright = preurl;
new_station.IsLive = true;
cached_results[key].Add (new_station);
}
}
}
}
catch (Exception e) {
Log.DebugFormat ("[RealRadiosPlugin]<ParseSearchResult> XML Parse Error {0}", e.Message);
RaiseErrorReturned ("General Error", e.Message);
continue;
}
}
}
}
/// <summary>
/// Retrieve and parse a live query on the shoutcast directory
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the freetext query or the genre name
/// </param>
protected override void RetrieveRequest(LiveRadioRequestType request_type, string query)
{
if (request_type == LiveRadioRequestType.ByGenre) {
XmlDocument document = RetrieveXml (base_url + genre_url + query + ".xspf");
if (document != null) ParseXspf (document, new Genre(query));
} else {
if (cached_results.ContainsKey (query)) return;
string doc = RetrieveHtml (search_url + freetext_request + query);
if (!String.IsNullOrEmpty(doc)) ParseSearchResult (doc, query);
}
}
/// <summary>
/// Parses the response to a query request and fills the results cache
/// </summary>
/// <param name="xml_response">
/// A <see cref="XmlDocument"/> -- the XML document containing the response to the query request
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the requested query, freetext or the genre name
/// </param>
private void ParseXmlResponse(XmlDocument xml_response, LiveRadioRequestType request_type, string query)
{
string session = GetSession();
List <string> pages = new List <string> ();
pages.Add(null);
XmlNodeList pagination_nodes = xml_response.GetElementsByTagName("PAGINATION_PAGES");
foreach (XmlNode node in pagination_nodes)
{
string url = null;
bool url_valid = false;
XmlNodeList page_nodes = node.ChildNodes;
foreach (XmlNode page_node in page_nodes)
{
try {
if (page_node.LocalName.Equals("PAGINATION_DESC") &&
!page_node.InnerText.Trim().Equals("1") &&
!page_node.InnerText.Trim().Equals("Next"))
{
url_valid = true;
}
if (page_node.LocalName.Equals("PAGINATION_LINK"))
{
url = page_node.InnerText;
}
}
catch (Exception e) {
Log.Warning("[Live365Plugin] <ParseXmlResponse> ERROR: ", e);
RaiseErrorReturned("XML Parse Error", e.Message);
return;
}
}
if (!String.IsNullOrEmpty(url) && url_valid)
{
pages.Add(url);
}
}
string key;
if (request_type == LiveRadioRequestType.ByGenre)
{
key = "Genre:" + query;
if (!cached_results.ContainsKey(key))
{
cached_results[key] = new List <DatabaseTrackInfo> ();
}
}
else
{
key = query;
if (!cached_results.ContainsKey(key))
{
cached_results[key] = new List <DatabaseTrackInfo> ();
}
}
cached_results[key].Clear();
foreach (string page in pages)
{
XmlDocument doc;
if (String.IsNullOrEmpty(page))
{
doc = xml_response;
}
else
{
doc = RetrieveXml(page);
}
XmlNodeList XML_station_nodes = doc.GetElementsByTagName("LIVE365_STATION");
foreach (XmlNode node in XML_station_nodes)
{
string name = null;
string access = null;
string ex_id = null;
string url = null;
string broadcaster = null;
string description = null;
string keywords = null;
string genre = null;
string bitrate = null;
string rating = null;
string status = null;
string location = null;
XmlNodeList childnodes = node.ChildNodes;
foreach (XmlNode child in childnodes)
{
try {
if (child.LocalName.Equals("STATION_ADDRESS"))
{
url = child.InnerText;
}
else if (child.LocalName.Equals("STATION_ID"))
{
ex_id = child.InnerText;
}
else if (child.LocalName.Equals("STATION_BROADCASTER"))
{
broadcaster = child.InnerText;
}
else if (child.LocalName.Equals("STATION_TITLE"))
{
name = child.InnerText;
}
else if (child.LocalName.Equals("STATION_DESCRIPTION"))
{
description = child.InnerText;
}
else if (child.LocalName.Equals("STATION_KEYWORDS"))
{
keywords = child.InnerText;
}
else if (child.LocalName.Equals("STATION_GENRE"))
{
genre = child.InnerText;
}
else if (child.LocalName.Equals("STATION_CONNECTION"))
{
bitrate = child.InnerText;
}
else if (child.LocalName.Equals("STATION_RATING"))
{
rating = child.InnerText;
}
else if (child.LocalName.Equals("STATION_STATUS"))
{
status = child.InnerText;
}
else if (child.LocalName.Equals("LISTENER_ACCESS"))
{
access = child.InnerText;
}
else if (child.LocalName.Equals("STATION_LOCATION"))
{
location = child.InnerText;
}
}
catch (Exception e) {
Log.Warning("[Live365Plugin] <ParseXmlResponse> ERROR: ", e);
RaiseErrorReturned("General Error", e.Message);
continue;
}
}
int bitrate_int;
int id_int;
int rating_int;
if (!String.IsNullOrEmpty(access) &&
!String.IsNullOrEmpty(status) &&
(access.Equals("PUBLIC") || UseCredentials) &&
status.Equals("OK"))
{
DatabaseTrackInfo new_station = new DatabaseTrackInfo();
if (UseCredentials)
{
url = url.Replace(replace_url, playlist_url);
url += session;
}
new_station.Uri = new SafeUri(url);
new_station.ArtistName = broadcaster;
new_station.Genre = genre;
new_station.TrackTitle = name;
new_station.Comment = description + location + keywords;
Int32.TryParse(rating.Trim(), out rating_int);
new_station.Rating = rating_int;
Int32.TryParse(ex_id.Trim(), out id_int);
new_station.ExternalId = id_int;
new_station.PrimarySource = source;
new_station.IsLive = true;
Int32.TryParse(bitrate.Trim(), out bitrate_int);
new_station.BitRate = bitrate_int;
new_station.IsLive = true;
cached_results[key].Add(new_station);
}
}
}
}
/// <summary>
/// Parses the response to a query request and fills the results cache
/// </summary>
/// <param name="xml_response">
/// A <see cref="XmlDocument"/> -- the XML document containing the response to the query request
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the requested query, freetext or the genre name
/// </param>
private void ParseHtmlResponse(string html, LiveRadioRequestType request_type, string query)
{
int pages = 1;
string pagerequest = null;
if (html.Contains("\" title=\"Go to last page\""))
{
pagerequest = html.Remove(html.IndexOf("\" title=\"Go to last page\""));
pagerequest = pagerequest.Substring(pagerequest.LastIndexOf("\"") + 1);
string page = pagerequest.Substring(pagerequest.LastIndexOf("=") + 1);
pagerequest = pagerequest.Remove(pagerequest.IndexOf("=") + 1);
try
{
pages = Int16.Parse(page);
}
catch {}
}
string full_html = null;
for (int p = 1; p <= pages; p++)
{
List <char> badchars = new List <char> ();
foreach (char c in html)
{
if (char.IsControl(c) || char.IsSeparator(c) || char.IsWhiteSpace(c) || char.GetNumericValue(c) == 13 || char.GetNumericValue(c) == 12)
{
if (!badchars.Contains(c))
{
badchars.Add(c);
}
}
}
foreach (Char c in badchars)
{
html = html.Replace(c, ' ');
}
html = Regex.Replace(html, @"^.*<div class=""station-list"">", "<div>");
html = Regex.Replace(html, @"<img[^>]*>", "<br/>");
if (html.Contains("ul class=\"pager\""))
{
html = Regex.Replace(html, @"<div class=""item-list"">.*$", "<br/>");
}
else
{
html = Regex.Replace(html, @"<div id=""content-footer"".*$", "<div/>");
html = Regex.Replace(html, @"> *<", "><");
html = Regex.Replace(html, @"</div></div></div><div/>", "<br/>");
}
html = Regex.Replace(html, @"<br>", "<br/>");
full_html = full_html + html;
if (p < pages)
{
html = RetrieveHtml(pagerequest + (p + 1));
}
}
html = "<xml>" + full_html + "</xml>";
XmlDocument doc = new XmlDocument();
try
{
doc.LoadXml(html);
}
catch (Exception e)
{
Log.DebugFormat("[RealRadiosPlugin]<ParseSearchResult> Parse Error: {0}", e.Message);
RaiseErrorReturned("General Error", e.Message);
return;
}
string key;
if (request_type == LiveRadioRequestType.ByGenre)
{
key = "Genre:" + query;
}
else
{
key = query;
}
cached_results[key] = new List <DatabaseTrackInfo> ();
foreach (XmlNode snode in doc.GetElementsByTagName("div"))
{
if (snode.Name.Equals("div") && snode.Attributes != null && snode.Attributes.Count > 0)
{
try
{
string location = null;
string frequency = null;
string title = null;
string preurl = null;
if (snode.Attributes.GetNamedItem("class").InnerText.Equals("station"))
{
preurl = snode.Attributes.GetNamedItem("rel").InnerText.Replace("station-", "");
foreach (XmlNode node in snode.ChildNodes)
{
if (node.Attributes.GetNamedItem("class").InnerText.Equals("station-info"))
{
foreach (XmlNode child in node.SelectNodes("descendant::*"))
{
if (child.Name.Equals("a"))
{
title = child.InnerText;
}
else if (child.Name.Equals("span"))
{
if (child.Attributes.GetNamedItem("class").InnerText.Equals("frequency"))
{
frequency = child.InnerText;
}
else if (child.Attributes.GetNamedItem("class").InnerText.Equals("location"))
{
location = child.InnerText;
}
}
}
DatabaseTrackInfo new_station = new DatabaseTrackInfo();
new_station.ArtistName = location;
new_station.Genre = query;
new_station.Comment = frequency;
new_station.TrackTitle = title;
new_station.PrimarySource = source;
new_station.Copyright = preurl;
new_station.IsLive = true;
cached_results[key].Add(new_station);
}
}
}
}
catch (Exception e) {
Log.DebugFormat("[RealRadiosPlugin]<ParseSearchResult> XML Parse Error {0}", e.Message);
RaiseErrorReturned("General Error", e.Message);
continue;
}
}
}
}
/// <summary>
/// Method to invoke the RequestResultRetrieved event
/// </summary>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the original request type
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the original freetext query or the original genre name
/// </param>
/// <param name="result">
/// A <see cref="List<DatabaseTrackInfo>"/> -- the resulting list of DatabaseTrackInfo objects for the query
/// </param>
protected void OnRequestResultRetrieved(LiveRadioRequestType request_type, string query, List<DatabaseTrackInfo> result)
{
RequestResultRetrievedEventHandler handler = RequestResultRetrieved;
if (handler != null) {
handler (this, query, request_type, result);
}
}
/// <summary>
/// Parses the response to a query request and fills the results cache
/// </summary>
/// <param name="xml_response">
/// A <see cref="XmlDocument"/> -- the XML document containing the response to the query request
/// </param>
/// <param name="request_type">
/// A <see cref="LiveRadioRequestType"/> -- the type of the request
/// </param>
/// <param name="query">
/// A <see cref="System.String"/> -- the requested query, freetext or the genre name
/// </param>
private void ParseXmlResponse(XmlDocument xml_response, LiveRadioRequestType request_type, string query)
{
string tunein_url = "";
XmlNodeList XML_tunein_nodes = xml_response.GetElementsByTagName ("tunein");
foreach (XmlNode node in XML_tunein_nodes)
{
XmlAttributeCollection xml_attributes = node.Attributes;
try {
tunein_url = xml_attributes.GetNamedItem("base").InnerText;
break;
}
catch (Exception e) {
Log.Warning ("[ShoutCastPlugin] <ParseXmlResponse> ERROR: ", e);
RaiseErrorReturned ("XML Parse Error", e.Message);
return;
}
}
XmlNodeList XML_station_nodes = xml_response.GetElementsByTagName ("station");
string key;
if (request_type == LiveRadioRequestType.ByGenre) {
key = "Genre:" + query;
if (!cached_results.ContainsKey (key)) {
cached_results[key] = new List<DatabaseTrackInfo> (XML_station_nodes.Count);
}
} else {
key = query;
if (!cached_results.ContainsKey (key)) {
cached_results[key] = new List<DatabaseTrackInfo> (XML_station_nodes.Count);
}
}
cached_results[key].Clear ();
foreach (XmlNode node in XML_station_nodes)
{
XmlAttributeCollection xml_attributes = node.Attributes;
try {
string name = xml_attributes.GetNamedItem ("name").InnerText;
string media_type = xml_attributes.GetNamedItem ("mt").InnerText;
string id = xml_attributes.GetNamedItem ("id").InnerText;
string genre = xml_attributes.GetNamedItem ("genre").InnerText;
string now_playing = xml_attributes.GetNamedItem ("ct").InnerText;
string bitrate = xml_attributes.GetNamedItem ("br").InnerText;
int id_int;
int bitrate_int;
if (!Int32.TryParse (id.Trim (), out id_int)) {
continue; //Something wrong with id, skip this
}
DatabaseTrackInfo new_station = new DatabaseTrackInfo ();
new_station.Uri = new SafeUri (play_url + tunein_url + "?id=" + id);
new_station.ArtistName = "www.shoutcast.com";
new_station.Genre = genre;
new_station.TrackTitle = name;
new_station.Comment = now_playing;
new_station.AlbumTitle = now_playing;
new_station.MimeType = media_type;
new_station.ExternalId = id_int;
new_station.PrimarySource = source;
new_station.IsLive = true;
Int32.TryParse (bitrate.Trim (), out bitrate_int);
new_station.BitRate = bitrate_int;
new_station.IsLive = true;
cached_results[key].Add (new_station);
}
catch (Exception e) {
Log.Warning ("[ShoutCastPlugin] <ParseXmlResponse> ERROR: ", e);
RaiseErrorReturned ("XML Parse Error", e.Message);
continue;
}
}
}
public LiveRadioRequestObject(LiveRadioRequestType request_type, string query) : base()
{
this.query = query;
this.request_type = request_type;
}
