Try your search with a different keyword or use * as a wildcard.
using System.Runtime.CompilerServices;
using System.Text.RegularExpressions;
using Microsoft.AspNetCore.Http;
using Microsoft.Net.Http.Headers;
using Nop.Core.Configuration;
using Nop.Core.Infrastructure;
namespace Nop.Services.Helpers;
///
/// User agent helper
///
public partial class UserAgentHelper : IUserAgentHelper
{
#region Fields
protected static readonly object _locker = new();
protected static readonly Regex _firstMobileDeviceRegex;
protected static readonly Regex _secondMobileDeviceRegex;
protected readonly AppSettings _appSettings;
protected readonly IHttpContextAccessor _httpContextAccessor;
protected readonly INopFileProvider _fileProvider;
#endregion
#region Ctor
static UserAgentHelper()
{
_firstMobileDeviceRegex = new Regex(@"(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Compiled);
_secondMobileDeviceRegex = new Regex(@"1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-", RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Compiled);
}
public UserAgentHelper(AppSettings appSettings,
IHttpContextAccessor httpContextAccessor,
INopFileProvider fileProvider)
{
_appSettings = appSettings;
_httpContextAccessor = httpContextAccessor;
_fileProvider = fileProvider;
}
#endregion
#region Utilities
///
/// Get BrowscapXmlHelper
///
/// BrowscapXmlHelper
[MethodImpl(MethodImplOptions.Synchronized)]
protected virtual BrowscapXmlHelper GetBrowscapXmlHelper()
{
if (Singleton.Instance != null)
return Singleton.Instance;
//no database created
if (string.IsNullOrEmpty(_appSettings.Get().UserAgentStringsPath))
return null;
//prevent multi loading data
lock (_locker)
{
//data can be loaded while we waited
if (Singleton.Instance != null)
return Singleton.Instance;
var userAgentStringsPath = _fileProvider.MapPath(_appSettings.Get().UserAgentStringsPath);
var crawlerOnlyUserAgentStringsPath = !string.IsNullOrEmpty(_appSettings.Get().CrawlerOnlyUserAgentStringsPath)
? _fileProvider.MapPath(_appSettings.Get().CrawlerOnlyUserAgentStringsPath)
: string.Empty;
var additionalCrawlersFilePath = _fileProvider.MapPath(_appSettings.Get().CrawlerOnlyAdditionalUserAgentStringsPath);
var browscapXmlHelper = new BrowscapXmlHelper(userAgentStringsPath, crawlerOnlyUserAgentStringsPath, additionalCrawlersFilePath, _fileProvider);
Singleton.Instance = browscapXmlHelper;
return Singleton.Instance;
}
}
#endregion
#region Methods
///
/// Get a value indicating whether the request is made by search engine (web crawler)
///
/// Result
public virtual bool IsSearchEngine()
{
if (_httpContextAccessor?.HttpContext == null)
return false;
//we put required logic in try-catch block
//more info: https://www.nopcommerce.com/boards/topic/17711/unhandled-exception-request-is-not-available-in-this-context
try
{
var browscapXmlHelper = GetBrowscapXmlHelper();
//we cannot load parser
if (browscapXmlHelper == null)
return false;
var userAgent = _httpContextAccessor.HttpContext.Request.Headers[HeaderNames.UserAgent];
return !string.IsNullOrWhiteSpace(userAgent) && browscapXmlHelper.IsCrawler(userAgent);
}
catch
{
// ignored
}
return false;
}
///
/// Get a value indicating whether the request is made by mobile device
///
///