Clever Geek Handbook

Autorisation depuis une application C # sur le portail BlaBlaCar.ru

Pourquoi ?

À partir du code de votre application, vous pouvez vous connecter à n'importe quel portail Web. Cela peut être nécessaire lorsque vous souhaitez accéder aux ressources de votre compte.





Que pouvez-vous obtenir sur ce portail?

Vous pouvez obtenir une liste de vos voyages, ou vous pouvez vérifier quels voyages sont prévus sur l'ensemble du portail du point "A" au point "B" pour une date précise. Vous pouvez faire plus.





De quoi avez-vous besoin?

  • Serveur proxy local, je recommande Fiddler - simple et pratique





  • Visual Studio





Nous collectons des données

web- web- HTTP. HTTP , . . Fiddler. Fiddler , blablacar.ru, HTTP- ( ).





. .

HTTP- HttpWebRequest. : GetRequest PostRequest.





GetRequest 
    public class GetRequest
    {
        private HttpWebRequest _request;
        public void Run(ref CookieContainer cookies)
        {
            _request = (HttpWebRequest)WebRequest.Create(Address);

            _request.Headers.Add("DNT", "1");
            _request.Method = "Get";
            _request.Accept = Accept;
            _request.Host = Host;

            if (TurnOffProxy) _request.Proxy = null;
            else _request.Proxy = Proxy;

            if (UseUnsafeHeaderParsing)
            {
                var config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
                var settings = (SettingsSection)config.GetSection("system.net/settings");
                settings.HttpWebRequest.UseUnsafeHeaderParsing = true;
                config.Save(ConfigurationSaveMode.Modified);
                ConfigurationManager.RefreshSection("system.net/settings");
            }

            _request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;

            if (!ContentType.IsEmpty()) _request.ContentType = ContentType;

            if (TimeOut > 0)
            {
                _request.Timeout = TimeOut;
                _request.ReadWriteTimeout = TimeOut;
            }
            else
            {
                _request.Timeout = 35000;
                _request.ReadWriteTimeout = 35000;
            }

            if (NoCachePolicy == false)
            {
                var noCachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.NoCacheNoStore);
                _request.CachePolicy = noCachePolicy;
            }

            foreach (KeyValuePair<string, string> keyValuePair in Headers)
            {
                _request.Headers.Add(keyValuePair.Key, keyValuePair.Value);
            }

            if (UserAgent == null) _request.UserAgent = Data.Ie11;
            else _request.UserAgent = UserAgent;


            if (AllowAutoRedirect != null)
                _request.AllowAutoRedirect = (bool)AllowAutoRedirect;

            if (KeepAlive != null)
                _request.KeepAlive = (bool)KeepAlive;

            if (Expect100Continue != null)
                _request.ServicePoint.Expect100Continue = (bool)Expect100Continue;


            if (!Referer.IsEmpty())
                _request.Referer = Referer;

            _request.CookieContainer = cookies;

            try
            {
                HttpWebResponse response = (HttpWebResponse)_request.GetResponse();

                if ((response.StatusCode == HttpStatusCode.OK || response.StatusCode == HttpStatusCode.Moved || response.StatusCode == HttpStatusCode.Redirect) && response.ContentType.StartsWith("image", StringComparison.OrdinalIgnoreCase))
                {
                    // if the remote file was found, download oit
                    using (Stream inputStream = response.GetResponseStream())
                    {
                        byte[] buffer = new byte[64000];
                        int bytesRead;

                        bytesRead = inputStream.Read(buffer, 0, buffer.Length);
                        Response = Convert.ToBase64String(buffer, 0, bytesRead);
                    }
                }
                else
                {
                    var stream = response.GetResponseStream();

                    if (stream != null) Response = new StreamReader(stream).ReadToEnd();
                    ResponseHeaders = response.Headers;
                    RequestHeaders = _request.Headers;
                }


                response.Close();
            }
            catch (WebException ex)
            {
                using (var stream = ex.Response.GetResponseStream())
                using (var reader = new StreamReader(stream))
                {
                    Response = reader.ReadToEnd();
                }
            }
            catch (Exception ex)
            {
            }

        }

        Dictionary<string, string> Headers = new Dictionary<string, string>();
        public void AddHeader(string headerName, string headerValue)
        {
            Headers[headerName] = headerValue;
        }
        public bool NoCachePolicy { get; set; }
        public bool AcceptGZipEncoding { get; set; }
        public bool UseUnsafeHeaderParsing { get; set; }
        public string Address { get; set; }
        public string Accept { get; set; }
        public string Referer { get; set; }
        public string Host { get; set; }
        public bool? KeepAlive { get; set; }
        public string ContentType { get; set; }
        public bool? Expect100Continue { get; set; }
        public string Response { get; private set; }
        public bool? AllowAutoRedirect { get; set; }
        public WebHeaderCollection ResponseHeaders { get; private set; }
        public WebHeaderCollection RequestHeaders { get; private set; }
        public string UserAgent { get; set; }
        public WebProxy Proxy { get; set; }
        public bool TurnOffProxy { get; set; }
        public int TimeOut { get; set; }

    }





PostRequest 
    public class PostRequest
    {
        private HttpWebRequest _request;
        public void Run(ref CookieContainer cookies)
        {
            _request = (HttpWebRequest)WebRequest.Create(Address);
            _request.Method = "POST";
            _request.Host = Host;
            _request.Headers.Add("DNT", "1");
            _request.Proxy = Proxy;

            _request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;

            if (TimeOut > 0)
            {
                _request.Timeout = TimeOut;
                _request.ReadWriteTimeout = TimeOut;
            }
            else
            {
                _request.Timeout = 90000;
                _request.ReadWriteTimeout = 90000;
            }

            var noCachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.NoCacheNoStore);
            _request.CachePolicy = noCachePolicy;

            if (Expect100Continue == true) _request.ServicePoint.Expect100Continue = true;
            else _request.ServicePoint.Expect100Continue = false;

            _request.ContentType = ContentType;
            _request.Accept = Accept;
            _request.Referer = Referer;

            _request.KeepAlive = KeepAlive;

            foreach (KeyValuePair<string, string> keyValuePair in Headers)
            {
                _request.Headers.Add(keyValuePair.Key, keyValuePair.Value);
            }

            _request.CookieContainer = cookies;

            if (UserAgent == null) _request.UserAgent = Dom.Catalog.Data.Ie11;
            else _request.UserAgent = UserAgent;

            if (AllowAutoRedirect != null)
                _request.AllowAutoRedirect = (bool)AllowAutoRedirect;


            byte[] sentData;
            if (ByteData != null) sentData = ByteData;
            else sentData = Encoding.UTF8.GetBytes(Data);


            _request.ContentLength = sentData.Length;
            Stream sendStream = _request.GetRequestStream();
            sendStream.Write(sentData, 0, sentData.Length);
            sendStream.Close();
            WebResponse response = _request.GetResponse();

            ResponseHeaders = response.Headers;
            RequestHeaders = _request.Headers;

            Stream stream = response.GetResponseStream();
            if (stream != null)
            {
                if (ResponseEncoding.IsEmpty()) Response = new StreamReader(stream).ReadToEnd();
                else Response = new StreamReader(stream, Encoding.GetEncoding(ResponseEncoding)).ReadToEnd();
            }
            response.Close();
        }

        Dictionary<string, string> Headers = new Dictionary<string, string>();
        public void AddHeader(string headerName, string headerValue)
        {
            Headers[headerName] = headerValue;
        }
        public bool NoCachePolicy { get; set; }
        public string Response { get; set; }
        public string ResponseEncoding { get; set; }
        public string Data { get; set; }
        public byte[] ByteData { get; set; }
        public string Address { get; set; }
        public string Accept { get; set; }
        public string Host { get; set; }
        public string ContentType { get; set; }
        public string Referer { get; set; }
        public bool KeepAlive { get; set; }
        public bool? Expect100Continue { get; set; }
        public string UserAgent { get; set; }
        public bool? AllowAutoRedirect { get; set; }
        public WebHeaderCollection ResponseHeaders { get; private set; }
        public WebHeaderCollection RequestHeaders { get; private set; }
        public WebProxy Proxy { get; set; }
        public int TimeOut { get; set; }
    }









user password .





cookies cookie .





proxy - . , "127.0.0.1:8888" - Fiddler.





SecurityProtocolType.Tls12 - .





var user = "user";              // !!! rewrite value from your account !!!
var password = "password";      // !!! rewrite value from your account !!!

// We keep cookies here
var cookies = new CookieContainer();

// Any proxy, for example Fiddler
var proxy = new WebProxy("127.0.0.1:8888");

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;





cookie , "https://www.blablacar.ru/".





var getRequest = new GetRequest()
{
     Address = "https://www.blablacar.ru/",
     Accept = "text/html, application/xhtml+xml, image/jxr, */*",
     Host = "www.blablacar.ru",
     KeepAlive = true,
     UserAgent = "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko",
     Proxy = proxy
};
getRequest.Run(ref cookies);

, "visitorId":





var visitorStart = getRequest.Response.IndexOf("visitorId") + 12;
var visitorEnd = getRequest.Response.IndexOf("\"", visitorStart);
var visitorId = getRequest.Response.Substring(visitorStart, visitorEnd - visitorStart);

xCorrelationId GUID.





.





// Random value
var xCorrelationId = Guid.NewGuid();

// Auth request
var data = $"{{\"login\":\"{user}\",\"password\":\"{password}\",\"rememberMe\":true,\"grant_type\":\"password\"}}";
var postRequest = new PostRequest()
{
    Data = data,
    Address = $"https://auth.blablacar.ru/secure-token",
    Accept = "application/json",
    Host = "auth.blablacar.ru",
    ContentType = "application/json",
    Referer = "https://www.blablacar.ru/login/email",
    KeepAlive = true,
    Proxy = proxy
};
postRequest.AddHeader("x-client", "SPA|1.0.0");
postRequest.AddHeader("x-correlation-id", xCorrelationId.ToString());
postRequest.AddHeader("x-currency", "RUB");
postRequest.AddHeader("x-forwarded-proto", "https");
postRequest.AddHeader("x-locale", "ru_RU");
postRequest.AddHeader("x-visitor-id", visitorId);
postRequest.AddHeader("Origin", "https://www.blablacar.ru");
postRequest.Run(ref cookies);

POST- , "bearerCookieValue". "Set-Cookie" .





var bearerCookieValue = string.Empty;
var headers = postRequest.ResponseHeaders;
for (int i = 0; i < headers.Count; ++i)
{
    string header = headers.GetKey(i);

    if (header == "Set-Cookie")
    {
         var headerValue = headers.GetValues(i)[0];
         headerValue = WebUtility.UrlDecode(headerValue);

         var accessTokenStart = postRequest.Response.IndexOf("access_token") + 15;
         var accessTokenEnd = postRequest.Response.IndexOf("\"", accessTokenStart);
         bearerCookieValue = postRequest.Response.Substring(accessTokenStart, accessTokenEnd - accessTokenStart);
    }
}





Désormais, tout est prêt pour répondre aux demandes d'informations nécessaires. Tout le code est généré en fonction des en-têtes de demande / réponse affichés dans le proxy Fiddler.





getRequest = new GetRequest()
{
    Address = "https://edge.blablacar.ru/bookings-and-tripoffers?active=false",
    Accept = "application/json",
    Host = "edge.blablacar.ru",
    KeepAlive = true,
    ContentType = "application/json",
    Referer = "https://www.blablacar.ru/rides/history",
    Proxy = proxy
};
getRequest.AddHeader("x-blablacar-accept-endpoint-version", "2");
getRequest.AddHeader("x-client", "SPA|1.0.0");
getRequest.AddHeader("x-correlation-id", xCorrelationId.ToString());
getRequest.AddHeader("x-currency", "RUB");
getRequest.AddHeader("x-forwarded-proto", "https");
getRequest.AddHeader("x-locale", "ru_RU");
getRequest.AddHeader("x-visitor-id", visitorId);
getRequest.AddHeader("authorization", $"Bearer {bearerCookieValue}");
getRequest.AddHeader("Origin", "https://www.blablacar.ru");
getRequest.Run(ref cookies);

Nous recevons la réponse au format JSON:





On retrouve une liste de tous les voyages sur le portail

Dans cet exemple, nous trouverons une liste de tous les voyages de Moscou à Saint-Pétersbourg pour le 15 décembre 2020.





var date = "2020-12-15";
var searchUid = Guid.NewGuid();

getRequest = new GetRequest()
{
    Address = $"https://edge.blablacar.ru/trip/search?from_coordinates=55.755826%2C37.617299&from_country=RU&to_coordinates=59.931058%2C30.360909&to_country=RU&departure_date={date}&min_departure_time=00%3A00%3A00&requested_seats=1&passenger_gender=UNKNOWN&search_uuid={searchUid}",
    Accept = "application/json",
    Host = "edge.blablacar.ru",
    KeepAlive = true,
    ContentType = "application/json",
    Referer = "https://www.blablacar.ru/",
    Proxy = proxy
};
getRequest.AddHeader("x-blablacar-accept-endpoint-version", "2");
getRequest.AddHeader("x-client", "SPA|1.0.0");
getRequest.AddHeader("x-correlation-id", xCorrelationId.ToString());
getRequest.AddHeader("x-currency", "RUB");
getRequest.AddHeader("x-forwarded-proto", "https");
getRequest.AddHeader("x-locale", "ru_RU");
getRequest.AddHeader("x-visitor-id", visitorId);
getRequest.AddHeader("authorization", $"Bearer {bearerCookieValue}");
getRequest.AddHeader("Origin", "https://www.blablacar.ru");
getRequest.Run(ref cookies);

En réponse à la demande, nous recevons une chaîne JSON avec des trajets sur le portail:





Terminé







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