public static async Task <List <Rule> > GetRules(RulesSource source)
{
string text = await LoadRules(source);
if (text == null)
{
return(null);
}
return(TextToRules(text));
}
private static async Task <string> loadRules(RulesSource source)
{
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
StorageFile file = null;
if (await localFolder.TryGetItemAsync(source.FileName) != null)
{
try {
file = await localFolder.GetFileAsync(source.FileName);
return(await FileIO.ReadTextAsync(file));
} catch {
// ignored
}
}
bool saveToFile = true;
try
{ // Create file
file = await localFolder.CreateFileAsync(source.FileName);
}
catch
{
saveToFile = false;
}
try
{
HttpClient client = new HttpClient();
var response = await client.SendRequestAsync(new HttpRequestMessage(HttpMethod.Get, source.Uri));
byte[] bodyBytes = (await response.Content.ReadAsBufferAsync()).ToArray();
Encoding encoding = source.Encoding;
string rules = encoding.GetString(bodyBytes, 0, bodyBytes.Length);
if (saveToFile)
{
await FileIO.WriteTextAsync(file, rules);
}
return(rules);
} catch {
// ignored
}
return(null);
}
private async Task <bool> LoadDataAsync(int rulesIndex)
{
RulesSource source = rulesSources[rulesIndex];
List <Rule> tempRules = await Rule.getRules(source);
if (tempRules == null)
{
return(false);
}
clearCacheButton.IsEnabled = true;
rules = tempRules;
actualRulesTextBlock.Text = source.Date.ToString("dd/MM/yyyy") +
(rulesIndex == rulesSources.Count - 1 ? " (" + ResourceLoader.GetForCurrentView().GetString("newest") + ")" : "");
actualRules = rulesIndex;
return(true);
}
private static async Task <string> LoadRules(RulesSource source)
{
string filePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), source.FileName);
if (File.Exists(filePath))
{
try
{
return(File.ReadAllText(filePath));
}
catch
{
// ignored
}
}
try
{
HttpClient client = new HttpClient();
var response = await client.SendAsync(new HttpRequestMessage(HttpMethod.Get, source.Uri));
byte[] bodyBytes = await response.Content.ReadAsByteArrayAsync();
Encoding encoding = source.Encoding;
string rules = encoding.GetString(bodyBytes, 0, bodyBytes.Length);
try
{
File.WriteAllText(filePath, rules);
}
catch
{
// ignored
}
return(rules);
}
catch
{
// ignored
}
return(null);
}
