private async Task FillCache(string url)
{
Chromium chromium = Chromium.GetInstance();
Response response;
string sourceCode;
PrerenderSpecials prerenderSpecials;
// relaunch method on chromium fail
try
{
(response, sourceCode, prerenderSpecials) = await chromium.GoToUrlAsync(url);
}
catch (Exception)
{
await FillCache(url);
return;
}
// save page to db
var db = new CachedPageContext();
db.Database.EnsureCreated();
db.CachedPages.Add(new CachedPage
{
Url = url,
TimeStamp = Utils.Dt.UnixNow(),
AnswerHttpCode = string.IsNullOrEmpty(prerenderSpecials.StatusCode) ? (int)response.Status : Convert.ToInt32(prerenderSpecials.StatusCode),
SourceCode = sourceCode
});
db.SaveChanges();
}
public async Task <CachedPage> GetPageFromCacheAsync(string url)
{
var db = new CachedPageContext();
db.Database.EnsureCreated();
// search page in cache database
var page = db.CachedPages
.FirstOrDefault(cachedPage => cachedPage.Url == url && cachedPage.TimeStamp > Utils.Dt.UnixNow() - Utils.Dt.SecsInWeek);
if (page != null)
{
return(page);
}
// save page to cache and relaunch method recursively
await FillCache(url);
return(await GetPageFromCacheAsync(url));
}
