/* This is a two steps process:
* 1st: we need to visit the login form page to get two important pieces of data
* - the session ID cookie which will stay in our cache
* - the CSRF token that is generated on the fly in the form
* 2nd: armed with those two things, we can then post to the login check page which
* will simply stamp our session ID as valid
*/
async Task <bool> LoginToHubway()
{
var loginPage = await Client.GetStringAsync(HubwayLoginUrl).ConfigureAwait(false);
var parser = new SimpleHtmlParser();
var doc = parser.ParseString(loginPage);
var form = doc.GetElementsByTagName("form")
.OfType <XmlElement> ()
.FirstOrDefault(n => n.GetAttribute("class") == "ed-popup-form_login__form");
var inputs = form.GetElementsByTagName("input").OfType <XmlElement> ().ToList();
var csrfToken = inputs
.OfType <XmlElement> ()
.First(n => n.GetAttribute("name") == "_login_csrf_security_token")
.GetAttribute("value");
var content = new FormUrlEncodedContent(new Dictionary <string, string> {
{ "_username", credentials.Username },
{ "_password", credentials.Password },
{ "_failure_path", "eightd_bike_profile__login" },
{ "ed_from_login_popup", "true" },
{ "_login_csrf_security_token", csrfToken }
});
var login = await Client.PostAsync(HubwayLoginCheckUrl, content).ConfigureAwait(false);
return(login.StatusCode == HttpStatusCode.Found && login.Headers.Location == new Uri(HubwayProfileUrl));
}
public async Task <Rental[]> GetRentals(int page)
{
bool needsAuth = false;
for (int i = 0; i < 4; i++)
{
try {
if (needsAuth)
{
if (await LoginToHubway().ConfigureAwait(false))
{
needsAuth = false;
}
else
{
continue;
}
}
if (string.IsNullOrEmpty(credentials.UserId))
{
credentials.UserId = await GetHubwayUserId().ConfigureAwait(false);
if (string.IsNullOrEmpty(credentials.UserId))
{
needsAuth = true;
continue;
}
}
var rentalsUrl = HubwayRentalsUrl + credentials.UserId;
if (page > 0)
{
rentalsUrl += "?pageNumber=" + page;
}
var answer = await Client.GetStringAsync(rentalsUrl).ConfigureAwait(false);
var parser = new SimpleHtmlParser();
var doc = parser.ParseString(answer);
var div = doc.GetElementsByTagName("section")
.OfType <XmlElement> ()
.First(s => s.GetAttribute("class") == "ed-profile-page__content");
var rows = div.GetElementsByTagName("div")
.OfType <XmlElement> ()
.Where(n => n.ContainsClass("ed-table__item_trip"));
return(rows.Select(row => {
var cells = row.GetElementsByTagName("div").OfType <XmlElement> ().ToList();
/* 0 <div>
* 1 <div>time start
* 2 <div>station start
* </div>
* 3 <div>
* 4 <div>time end
* 5 <div>station end
* </div>
* 6 <div>duration
* 7 <div>billed
*/
var rental = new Rental {
FromStationName = cells[2].InnerText.Trim(),
ToStationName = cells[5].InnerText.Trim(),
Duration = ParseRentalDuration(cells[6].InnerText.Trim()),
Price = ParseRentalPrice(cells[7].InnerText.Trim()),
DepartureTime = DateTime.Parse(cells[1].InnerText,
System.Globalization.CultureInfo.InvariantCulture),
ArrivalTime = DateTime.Parse(cells[4].InnerText,
System.Globalization.CultureInfo.InvariantCulture)
};
rental.Id = ((long)rental.DepartureTime.GetHashCode()) << 32;
rental.Id |= (uint)rental.ArrivalTime.GetHashCode();
return rental;
}).ToArray());
} catch (HttpRequestException htmlException) {
// Super hacky but oh well
if (!needsAuth)
{
needsAuth = htmlException.Message.Contains("302");
}
continue;
} catch (Exception e) {
AnalyticsHelper.LogException("RentalsGenericError", e);
Log.Error("RentalsGenericError", e.ToString());
break;
}
}
return(null);
}
