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Run formatting (#2230)

This commit is contained in:
Justin Baur
2022-08-29 16:06:55 -04:00
committed by GitHub
parent 9b7aef0763
commit 7f5f010e1e
1205 changed files with 73813 additions and 75022 deletions

View File

@ -3,106 +3,105 @@ using Bit.Icons.Services;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Memory;
namespace Bit.Icons.Controllers
namespace Bit.Icons.Controllers;
[Route("")]
public class IconsController : Controller
{
[Route("")]
public class IconsController : Controller
// Basic bwi-globe icon
private static readonly byte[] _notFoundImage = Convert.FromBase64String("iVBORw0KGgoAAAANSUhEUg" +
"AAABMAAAATCAQAAADYWf5HAAABu0lEQVR42nXSvWuTURTH8R+t0heI9Y04aJycdBLNJNrBFBU7OFgUER3q21I0bXK+JwZ" +
"pXISm/QdcRB3EgqBBsNihsUbbgODQQSKCuKSDOApJuuhj8tCYQj/jvYfD795z1MZ+nBKrNKhSwrMxbZTrtRnqlEjZkB/x" +
"C/xmhZrlc71qS0Up8yVzTCGucFNKD1JhORVd70SZNU4okNx5d4+U2UXRIpJFWLClsR79YzN88wQvLWNzzPKEeS/wkQGpW" +
"VhhqhW8TtDJD3Mm1x/23zLSrZCdpBY8BueTNjHSbc+8wC9HlHgU5Aj5AW5zPdcVdpq0UcknWBSr/pjixO4gfp899Kd23p" +
"M2qQCH7LkCnqAqGh73OK/8NPOcaibr90LrW/yWAnaUhqjaOSl9nFR2r5rsqo22ypn1B5IN8VOUMHVgOnNQIX+d62plcz6" +
"rg1/jskK8CMb4we4pG6OWHtR/LBJkC2E4a7ZPkuX5ntumAOM2xxveclEhLvGH6XCmLPs735Eetrw63NnOgr9P9q1viC3x" +
"lRUGOjImqFDuOBvrYYoaZU9z1uPpYae5NfdvbNVG2ZjDIlXq/oMi46lo++4vjjPBl2Dlg00AAAAASUVORK5CYII=");
private readonly IMemoryCache _memoryCache;
private readonly IDomainMappingService _domainMappingService;
private readonly IIconFetchingService _iconFetchingService;
private readonly ILogger<IconsController> _logger;
private readonly IconsSettings _iconsSettings;
public IconsController(
IMemoryCache memoryCache,
IDomainMappingService domainMappingService,
IIconFetchingService iconFetchingService,
ILogger<IconsController> logger,
IconsSettings iconsSettings)
{
// Basic bwi-globe icon
private static readonly byte[] _notFoundImage = Convert.FromBase64String("iVBORw0KGgoAAAANSUhEUg" +
"AAABMAAAATCAQAAADYWf5HAAABu0lEQVR42nXSvWuTURTH8R+t0heI9Y04aJycdBLNJNrBFBU7OFgUER3q21I0bXK+JwZ" +
"pXISm/QdcRB3EgqBBsNihsUbbgODQQSKCuKSDOApJuuhj8tCYQj/jvYfD795z1MZ+nBKrNKhSwrMxbZTrtRnqlEjZkB/x" +
"C/xmhZrlc71qS0Up8yVzTCGucFNKD1JhORVd70SZNU4okNx5d4+U2UXRIpJFWLClsR79YzN88wQvLWNzzPKEeS/wkQGpW" +
"VhhqhW8TtDJD3Mm1x/23zLSrZCdpBY8BueTNjHSbc+8wC9HlHgU5Aj5AW5zPdcVdpq0UcknWBSr/pjixO4gfp899Kd23p" +
"M2qQCH7LkCnqAqGh73OK/8NPOcaibr90LrW/yWAnaUhqjaOSl9nFR2r5rsqo22ypn1B5IN8VOUMHVgOnNQIX+d62plcz6" +
"rg1/jskK8CMb4we4pG6OWHtR/LBJkC2E4a7ZPkuX5ntumAOM2xxveclEhLvGH6XCmLPs735Eetrw63NnOgr9P9q1viC3x" +
"lRUGOjImqFDuOBvrYYoaZU9z1uPpYae5NfdvbNVG2ZjDIlXq/oMi46lo++4vjjPBl2Dlg00AAAAASUVORK5CYII=");
_memoryCache = memoryCache;
_domainMappingService = domainMappingService;
_iconFetchingService = iconFetchingService;
_logger = logger;
_iconsSettings = iconsSettings;
}
private readonly IMemoryCache _memoryCache;
private readonly IDomainMappingService _domainMappingService;
private readonly IIconFetchingService _iconFetchingService;
private readonly ILogger<IconsController> _logger;
private readonly IconsSettings _iconsSettings;
public IconsController(
IMemoryCache memoryCache,
IDomainMappingService domainMappingService,
IIconFetchingService iconFetchingService,
ILogger<IconsController> logger,
IconsSettings iconsSettings)
[HttpGet("~/config")]
public IActionResult GetConfig()
{
return new JsonResult(new
{
_memoryCache = memoryCache;
_domainMappingService = domainMappingService;
_iconFetchingService = iconFetchingService;
_logger = logger;
_iconsSettings = iconsSettings;
CacheEnabled = _iconsSettings.CacheEnabled,
CacheHours = _iconsSettings.CacheHours,
CacheSizeLimit = _iconsSettings.CacheSizeLimit
});
}
[HttpGet("{hostname}/icon.png")]
public async Task<IActionResult> Get(string hostname)
{
if (string.IsNullOrWhiteSpace(hostname) || !hostname.Contains("."))
{
return new BadRequestResult();
}
[HttpGet("~/config")]
public IActionResult GetConfig()
var url = $"http://{hostname}";
if (!Uri.TryCreate(url, UriKind.Absolute, out var uri))
{
return new JsonResult(new
{
CacheEnabled = _iconsSettings.CacheEnabled,
CacheHours = _iconsSettings.CacheHours,
CacheSizeLimit = _iconsSettings.CacheSizeLimit
});
return new BadRequestResult();
}
[HttpGet("{hostname}/icon.png")]
public async Task<IActionResult> Get(string hostname)
var domain = uri.Host;
// Convert sub.domain.com => domain.com
//if(DomainName.TryParseBaseDomain(domain, out var baseDomain))
//{
// domain = baseDomain;
//}
var mappedDomain = _domainMappingService.MapDomain(domain);
if (!_iconsSettings.CacheEnabled || !_memoryCache.TryGetValue(mappedDomain, out Icon icon))
{
if (string.IsNullOrWhiteSpace(hostname) || !hostname.Contains("."))
var result = await _iconFetchingService.GetIconAsync(domain);
if (result == null)
{
return new BadRequestResult();
_logger.LogWarning("Null result returned for {0}.", domain);
icon = null;
}
else
{
icon = result.Icon;
}
var url = $"http://{hostname}";
if (!Uri.TryCreate(url, UriKind.Absolute, out var uri))
// Only cache not found and smaller images (<= 50kb)
if (_iconsSettings.CacheEnabled && (icon == null || icon.Image.Length <= 50012))
{
return new BadRequestResult();
}
var domain = uri.Host;
// Convert sub.domain.com => domain.com
//if(DomainName.TryParseBaseDomain(domain, out var baseDomain))
//{
// domain = baseDomain;
//}
var mappedDomain = _domainMappingService.MapDomain(domain);
if (!_iconsSettings.CacheEnabled || !_memoryCache.TryGetValue(mappedDomain, out Icon icon))
{
var result = await _iconFetchingService.GetIconAsync(domain);
if (result == null)
_logger.LogInformation("Cache icon for {0}.", domain);
_memoryCache.Set(mappedDomain, icon, new MemoryCacheEntryOptions
{
_logger.LogWarning("Null result returned for {0}.", domain);
icon = null;
}
else
{
icon = result.Icon;
}
// Only cache not found and smaller images (<= 50kb)
if (_iconsSettings.CacheEnabled && (icon == null || icon.Image.Length <= 50012))
{
_logger.LogInformation("Cache icon for {0}.", domain);
_memoryCache.Set(mappedDomain, icon, new MemoryCacheEntryOptions
{
AbsoluteExpirationRelativeToNow = new TimeSpan(_iconsSettings.CacheHours, 0, 0),
Size = icon?.Image.Length ?? 0,
Priority = icon == null ? CacheItemPriority.High : CacheItemPriority.Normal
});
}
AbsoluteExpirationRelativeToNow = new TimeSpan(_iconsSettings.CacheHours, 0, 0),
Size = icon?.Image.Length ?? 0,
Priority = icon == null ? CacheItemPriority.High : CacheItemPriority.Normal
});
}
if (icon == null)
{
return new FileContentResult(_notFoundImage, "image/png");
}
return new FileContentResult(icon.Image, icon.Format);
}
if (icon == null)
{
return new FileContentResult(_notFoundImage, "image/png");
}
return new FileContentResult(icon.Image, icon.Format);
}
}

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@ -1,21 +1,20 @@
using Bit.Core.Utilities;
using Microsoft.AspNetCore.Mvc;
namespace Bit.Icons.Controllers
{
public class InfoController : Controller
{
[HttpGet("~/alive")]
[HttpGet("~/now")]
public DateTime GetAlive()
{
return DateTime.UtcNow;
}
namespace Bit.Icons.Controllers;
[HttpGet("~/version")]
public JsonResult GetVersion()
{
return Json(CoreHelpers.GetVersion());
}
public class InfoController : Controller
{
[HttpGet("~/alive")]
[HttpGet("~/now")]
public DateTime GetAlive()
{
return DateTime.UtcNow;
}
[HttpGet("~/version")]
public JsonResult GetVersion()
{
return Json(CoreHelpers.GetVersion());
}
}

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@ -1,9 +1,8 @@
namespace Bit.Icons
namespace Bit.Icons;
public class IconsSettings
{
public class IconsSettings
{
public virtual bool CacheEnabled { get; set; }
public virtual int CacheHours { get; set; }
public virtual long? CacheSizeLimit { get; set; }
}
public virtual bool CacheEnabled { get; set; }
public virtual int CacheHours { get; set; }
public virtual long? CacheSizeLimit { get; set; }
}

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@ -2,324 +2,323 @@
using System.Reflection;
using System.Text.RegularExpressions;
namespace Bit.Icons.Models
namespace Bit.Icons.Models;
// ref: https://github.com/danesparza/domainname-parser
public class DomainName
{
// ref: https://github.com/danesparza/domainname-parser
public class DomainName
private const string IpRegex = "^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\." +
"(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\." +
"(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\." +
"(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$";
private string _subDomain = string.Empty;
private string _domain = string.Empty;
private string _tld = string.Empty;
private TLDRule _tldRule = null;
public string SubDomain => _subDomain;
public string Domain => _domain;
public string SLD => _domain;
public string TLD => _tld;
public TLDRule Rule => _tldRule;
public string BaseDomain => $"{_domain}.{_tld}";
public DomainName(string TLD, string SLD, string SubDomain, TLDRule TLDRule)
{
private const string IpRegex = "^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\." +
"(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\." +
"(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\." +
"(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$";
_tld = TLD;
_domain = SLD;
_subDomain = SubDomain;
_tldRule = TLDRule;
}
private string _subDomain = string.Empty;
private string _domain = string.Empty;
private string _tld = string.Empty;
private TLDRule _tldRule = null;
public static bool TryParse(string domainString, out DomainName result)
{
var retval = false;
public string SubDomain => _subDomain;
public string Domain => _domain;
public string SLD => _domain;
public string TLD => _tld;
public TLDRule Rule => _tldRule;
public string BaseDomain => $"{_domain}.{_tld}";
// Our temporary domain parts:
var tld = string.Empty;
var sld = string.Empty;
var subdomain = string.Empty;
TLDRule _tldrule = null;
result = null;
public DomainName(string TLD, string SLD, string SubDomain, TLDRule TLDRule)
try
{
_tld = TLD;
_domain = SLD;
_subDomain = SubDomain;
_tldRule = TLDRule;
// Try parsing the domain name ... this might throw formatting exceptions
ParseDomainName(domainString, out tld, out sld, out subdomain, out _tldrule);
// Construct a new DomainName object and return it
result = new DomainName(tld, sld, subdomain, _tldrule);
// Return 'true'
retval = true;
}
catch
{
// Looks like something bad happened -- return 'false'
retval = false;
}
public static bool TryParse(string domainString, out DomainName result)
return retval;
}
public static bool TryParseBaseDomain(string domainString, out string result)
{
if (Regex.IsMatch(domainString, IpRegex))
{
var retval = false;
// Our temporary domain parts:
var tld = string.Empty;
var sld = string.Empty;
var subdomain = string.Empty;
TLDRule _tldrule = null;
result = null;
try
{
// Try parsing the domain name ... this might throw formatting exceptions
ParseDomainName(domainString, out tld, out sld, out subdomain, out _tldrule);
// Construct a new DomainName object and return it
result = new DomainName(tld, sld, subdomain, _tldrule);
// Return 'true'
retval = true;
}
catch
{
// Looks like something bad happened -- return 'false'
retval = false;
}
return retval;
result = domainString;
return true;
}
public static bool TryParseBaseDomain(string domainString, out string result)
{
if (Regex.IsMatch(domainString, IpRegex))
{
result = domainString;
return true;
}
DomainName domain;
var retval = TryParse(domainString, out domain);
result = domain?.BaseDomain;
return retval;
}
DomainName domain;
var retval = TryParse(domainString, out domain);
result = domain?.BaseDomain;
return retval;
private static void ParseDomainName(string domainString, out string TLD, out string SLD,
out string SubDomain, out TLDRule MatchingRule)
{
// Make sure domain is all lowercase
domainString = domainString.ToLower();
TLD = string.Empty;
SLD = string.Empty;
SubDomain = string.Empty;
MatchingRule = null;
// If the fqdn is empty, we have a problem already
if (domainString.Trim() == string.Empty)
{
throw new ArgumentException("The domain cannot be blank");
}
private static void ParseDomainName(string domainString, out string TLD, out string SLD,
out string SubDomain, out TLDRule MatchingRule)
// Next, find the matching rule:
MatchingRule = FindMatchingTLDRule(domainString);
// At this point, no rules match, we have a problem
if (MatchingRule == null)
{
// Make sure domain is all lowercase
domainString = domainString.ToLower();
throw new FormatException("The domain does not have a recognized TLD");
}
TLD = string.Empty;
SLD = string.Empty;
SubDomain = string.Empty;
MatchingRule = null;
// Based on the tld rule found, get the domain (and possibly the subdomain)
var tempSudomainAndDomain = string.Empty;
var tldIndex = 0;
// If the fqdn is empty, we have a problem already
if (domainString.Trim() == string.Empty)
// First, determine what type of rule we have, and set the TLD accordingly
switch (MatchingRule.Type)
{
case TLDRule.RuleType.Normal:
tldIndex = domainString.LastIndexOf("." + MatchingRule.Name);
tempSudomainAndDomain = domainString.Substring(0, tldIndex);
TLD = domainString.Substring(tldIndex + 1);
break;
case TLDRule.RuleType.Wildcard:
// This finds the last portion of the TLD...
tldIndex = domainString.LastIndexOf("." + MatchingRule.Name);
tempSudomainAndDomain = domainString.Substring(0, tldIndex);
// But we need to find the wildcard portion of it:
tldIndex = tempSudomainAndDomain.LastIndexOf(".");
tempSudomainAndDomain = domainString.Substring(0, tldIndex);
TLD = domainString.Substring(tldIndex + 1);
break;
case TLDRule.RuleType.Exception:
tldIndex = domainString.LastIndexOf(".");
tempSudomainAndDomain = domainString.Substring(0, tldIndex);
TLD = domainString.Substring(tldIndex + 1);
break;
}
// See if we have a subdomain:
List<string> lstRemainingParts = new List<string>(tempSudomainAndDomain.Split('.'));
// If we have 0 parts left, there is just a tld and no domain or subdomain
// If we have 1 part, it's the domain, and there is no subdomain
// If we have 2+ parts, the last part is the domain, the other parts (combined) are the subdomain
if (lstRemainingParts.Count > 0)
{
// Set the domain:
SLD = lstRemainingParts[lstRemainingParts.Count - 1];
// Set the subdomain, if there is one to set:
if (lstRemainingParts.Count > 1)
{
throw new ArgumentException("The domain cannot be blank");
// We strip off the trailing period, too
SubDomain = tempSudomainAndDomain.Substring(0, tempSudomainAndDomain.Length - SLD.Length - 1);
}
}
}
private static TLDRule FindMatchingTLDRule(string domainString)
{
// Split our domain into parts (based on the '.')
// ...Put these parts in a list
// ...Make sure these parts are in reverse order
// (we'll be checking rules from the right-most pat of the domain)
var lstDomainParts = domainString.Split('.').ToList();
lstDomainParts.Reverse();
// Begin building our partial domain to check rules with:
var checkAgainst = string.Empty;
// Our 'matches' collection:
var ruleMatches = new List<TLDRule>();
foreach (string domainPart in lstDomainParts)
{
// Add on our next domain part:
checkAgainst = string.Format("{0}.{1}", domainPart, checkAgainst);
// If we end in a period, strip it off:
if (checkAgainst.EndsWith("."))
{
checkAgainst = checkAgainst.Substring(0, checkAgainst.Length - 1);
}
// Next, find the matching rule:
MatchingRule = FindMatchingTLDRule(domainString);
// At this point, no rules match, we have a problem
if (MatchingRule == null)
var rules = Enum.GetValues(typeof(TLDRule.RuleType)).Cast<TLDRule.RuleType>();
foreach (var rule in rules)
{
throw new FormatException("The domain does not have a recognized TLD");
}
// Based on the tld rule found, get the domain (and possibly the subdomain)
var tempSudomainAndDomain = string.Empty;
var tldIndex = 0;
// First, determine what type of rule we have, and set the TLD accordingly
switch (MatchingRule.Type)
{
case TLDRule.RuleType.Normal:
tldIndex = domainString.LastIndexOf("." + MatchingRule.Name);
tempSudomainAndDomain = domainString.Substring(0, tldIndex);
TLD = domainString.Substring(tldIndex + 1);
break;
case TLDRule.RuleType.Wildcard:
// This finds the last portion of the TLD...
tldIndex = domainString.LastIndexOf("." + MatchingRule.Name);
tempSudomainAndDomain = domainString.Substring(0, tldIndex);
// But we need to find the wildcard portion of it:
tldIndex = tempSudomainAndDomain.LastIndexOf(".");
tempSudomainAndDomain = domainString.Substring(0, tldIndex);
TLD = domainString.Substring(tldIndex + 1);
break;
case TLDRule.RuleType.Exception:
tldIndex = domainString.LastIndexOf(".");
tempSudomainAndDomain = domainString.Substring(0, tldIndex);
TLD = domainString.Substring(tldIndex + 1);
break;
}
// See if we have a subdomain:
List<string> lstRemainingParts = new List<string>(tempSudomainAndDomain.Split('.'));
// If we have 0 parts left, there is just a tld and no domain or subdomain
// If we have 1 part, it's the domain, and there is no subdomain
// If we have 2+ parts, the last part is the domain, the other parts (combined) are the subdomain
if (lstRemainingParts.Count > 0)
{
// Set the domain:
SLD = lstRemainingParts[lstRemainingParts.Count - 1];
// Set the subdomain, if there is one to set:
if (lstRemainingParts.Count > 1)
// Try to match rule:
TLDRule result;
if (TLDRulesCache.Instance.TLDRuleLists[rule].TryGetValue(checkAgainst, out result))
{
// We strip off the trailing period, too
SubDomain = tempSudomainAndDomain.Substring(0, tempSudomainAndDomain.Length - SLD.Length - 1);
ruleMatches.Add(result);
}
}
}
private static TLDRule FindMatchingTLDRule(string domainString)
// Sort our matches list (longest rule wins, according to :
var results = from match in ruleMatches
orderby match.Name.Length descending
select match;
// Take the top result (our primary match):
var primaryMatch = results.Take(1).SingleOrDefault();
return primaryMatch;
}
public class TLDRule : IComparable<TLDRule>
{
public string Name { get; private set; }
public RuleType Type { get; private set; }
public TLDRule(string RuleInfo)
{
// Split our domain into parts (based on the '.')
// ...Put these parts in a list
// ...Make sure these parts are in reverse order
// (we'll be checking rules from the right-most pat of the domain)
var lstDomainParts = domainString.Split('.').ToList();
lstDomainParts.Reverse();
// Begin building our partial domain to check rules with:
var checkAgainst = string.Empty;
// Our 'matches' collection:
var ruleMatches = new List<TLDRule>();
foreach (string domainPart in lstDomainParts)
// Parse the rule and set properties accordingly:
if (RuleInfo.StartsWith("*"))
{
// Add on our next domain part:
checkAgainst = string.Format("{0}.{1}", domainPart, checkAgainst);
Type = RuleType.Wildcard;
Name = RuleInfo.Substring(2);
}
else if (RuleInfo.StartsWith("!"))
{
Type = RuleType.Exception;
Name = RuleInfo.Substring(1);
}
else
{
Type = RuleType.Normal;
Name = RuleInfo;
}
}
// If we end in a period, strip it off:
if (checkAgainst.EndsWith("."))
{
checkAgainst = checkAgainst.Substring(0, checkAgainst.Length - 1);
}
public int CompareTo(TLDRule other)
{
if (other == null)
{
return -1;
}
var rules = Enum.GetValues(typeof(TLDRule.RuleType)).Cast<TLDRule.RuleType>();
foreach (var rule in rules)
return Name.CompareTo(other.Name);
}
public enum RuleType
{
Normal,
Wildcard,
Exception
}
}
public class TLDRulesCache
{
private static volatile TLDRulesCache _uniqueInstance;
private static object _syncObj = new object();
private static object _syncList = new object();
private TLDRulesCache()
{
// Initialize our internal list:
TLDRuleLists = GetTLDRules();
}
public static TLDRulesCache Instance
{
get
{
if (_uniqueInstance == null)
{
// Try to match rule:
TLDRule result;
if (TLDRulesCache.Instance.TLDRuleLists[rule].TryGetValue(checkAgainst, out result))
lock (_syncObj)
{
ruleMatches.Add(result);
}
}
}
// Sort our matches list (longest rule wins, according to :
var results = from match in ruleMatches
orderby match.Name.Length descending
select match;
// Take the top result (our primary match):
var primaryMatch = results.Take(1).SingleOrDefault();
return primaryMatch;
}
public class TLDRule : IComparable<TLDRule>
{
public string Name { get; private set; }
public RuleType Type { get; private set; }
public TLDRule(string RuleInfo)
{
// Parse the rule and set properties accordingly:
if (RuleInfo.StartsWith("*"))
{
Type = RuleType.Wildcard;
Name = RuleInfo.Substring(2);
}
else if (RuleInfo.StartsWith("!"))
{
Type = RuleType.Exception;
Name = RuleInfo.Substring(1);
}
else
{
Type = RuleType.Normal;
Name = RuleInfo;
}
}
public int CompareTo(TLDRule other)
{
if (other == null)
{
return -1;
}
return Name.CompareTo(other.Name);
}
public enum RuleType
{
Normal,
Wildcard,
Exception
}
}
public class TLDRulesCache
{
private static volatile TLDRulesCache _uniqueInstance;
private static object _syncObj = new object();
private static object _syncList = new object();
private TLDRulesCache()
{
// Initialize our internal list:
TLDRuleLists = GetTLDRules();
}
public static TLDRulesCache Instance
{
get
{
if (_uniqueInstance == null)
{
lock (_syncObj)
if (_uniqueInstance == null)
{
if (_uniqueInstance == null)
{
_uniqueInstance = new TLDRulesCache();
}
_uniqueInstance = new TLDRulesCache();
}
}
return (_uniqueInstance);
}
return (_uniqueInstance);
}
}
public IDictionary<TLDRule.RuleType, IDictionary<string, TLDRule>> TLDRuleLists { get; set; }
public static void Reset()
{
lock (_syncObj)
{
_uniqueInstance = null;
}
}
private IDictionary<TLDRule.RuleType, IDictionary<string, TLDRule>> GetTLDRules()
{
var results = new Dictionary<TLDRule.RuleType, IDictionary<string, TLDRule>>();
var rules = Enum.GetValues(typeof(TLDRule.RuleType)).Cast<TLDRule.RuleType>();
foreach (var rule in rules)
{
results[rule] = new Dictionary<string, TLDRule>(StringComparer.CurrentCultureIgnoreCase);
}
public IDictionary<TLDRule.RuleType, IDictionary<string, TLDRule>> TLDRuleLists { get; set; }
var ruleStrings = ReadRulesData();
public static void Reset()
// Strip out any lines that are:
// a.) A comment
// b.) Blank
var rulesStrings = ruleStrings
.Where(ruleString => !ruleString.StartsWith("//") && ruleString.Trim().Length != 0);
foreach (var ruleString in rulesStrings)
{
lock (_syncObj)
{
_uniqueInstance = null;
}
var result = new TLDRule(ruleString);
results[result.Type][result.Name] = result;
}
private IDictionary<TLDRule.RuleType, IDictionary<string, TLDRule>> GetTLDRules()
// Return our results:
Debug.WriteLine(string.Format("Loaded {0} rules into cache.",
results.Values.Sum(r => r.Values.Count)));
return results;
}
private IEnumerable<string> ReadRulesData()
{
var assembly = typeof(TLDRulesCache).GetTypeInfo().Assembly;
var stream = assembly.GetManifestResourceStream("Bit.Icons.Resources.public_suffix_list.dat");
string line;
using (var reader = new StreamReader(stream))
{
var results = new Dictionary<TLDRule.RuleType, IDictionary<string, TLDRule>>();
var rules = Enum.GetValues(typeof(TLDRule.RuleType)).Cast<TLDRule.RuleType>();
foreach (var rule in rules)
while ((line = reader.ReadLine()) != null)
{
results[rule] = new Dictionary<string, TLDRule>(StringComparer.CurrentCultureIgnoreCase);
}
var ruleStrings = ReadRulesData();
// Strip out any lines that are:
// a.) A comment
// b.) Blank
var rulesStrings = ruleStrings
.Where(ruleString => !ruleString.StartsWith("//") && ruleString.Trim().Length != 0);
foreach (var ruleString in rulesStrings)
{
var result = new TLDRule(ruleString);
results[result.Type][result.Name] = result;
}
// Return our results:
Debug.WriteLine(string.Format("Loaded {0} rules into cache.",
results.Values.Sum(r => r.Values.Count)));
return results;
}
private IEnumerable<string> ReadRulesData()
{
var assembly = typeof(TLDRulesCache).GetTypeInfo().Assembly;
var stream = assembly.GetManifestResourceStream("Bit.Icons.Resources.public_suffix_list.dat");
string line;
using (var reader = new StreamReader(stream))
{
while ((line = reader.ReadLine()) != null)
{
yield return line;
}
yield return line;
}
}
}

View File

@ -1,8 +1,7 @@
namespace Bit.Icons.Models
namespace Bit.Icons.Models;
public class Icon
{
public class Icon
{
public byte[] Image { get; set; }
public string Format { get; set; }
}
public byte[] Image { get; set; }
public string Format { get; set; }
}

View File

@ -1,66 +1,65 @@
namespace Bit.Icons.Models
{
public class IconResult
{
public IconResult(string href, string sizes)
{
Path = href;
if (!string.IsNullOrWhiteSpace(sizes))
{
var sizeParts = sizes.Split('x');
if (sizeParts.Length == 2 && int.TryParse(sizeParts[0].Trim(), out var width) &&
int.TryParse(sizeParts[1].Trim(), out var height))
{
DefinedWidth = width;
DefinedHeight = height;
namespace Bit.Icons.Models;
if (width == height)
public class IconResult
{
public IconResult(string href, string sizes)
{
Path = href;
if (!string.IsNullOrWhiteSpace(sizes))
{
var sizeParts = sizes.Split('x');
if (sizeParts.Length == 2 && int.TryParse(sizeParts[0].Trim(), out var width) &&
int.TryParse(sizeParts[1].Trim(), out var height))
{
DefinedWidth = width;
DefinedHeight = height;
if (width == height)
{
if (width == 32)
{
if (width == 32)
{
Priority = 1;
}
else if (width == 64)
{
Priority = 2;
}
else if (width >= 24 && width <= 128)
{
Priority = 3;
}
else if (width == 16)
{
Priority = 4;
}
else
{
Priority = 100;
}
Priority = 1;
}
else if (width == 64)
{
Priority = 2;
}
else if (width >= 24 && width <= 128)
{
Priority = 3;
}
else if (width == 16)
{
Priority = 4;
}
else
{
Priority = 100;
}
}
}
if (Priority == 0)
{
Priority = 200;
}
}
public IconResult(Uri uri, byte[] bytes, string format)
if (Priority == 0)
{
Path = uri.ToString();
Icon = new Icon
{
Image = bytes,
Format = format
};
Priority = 10;
Priority = 200;
}
public string Path { get; set; }
public int? DefinedWidth { get; set; }
public int? DefinedHeight { get; set; }
public Icon Icon { get; set; }
public int Priority { get; set; }
}
public IconResult(Uri uri, byte[] bytes, string format)
{
Path = uri.ToString();
Icon = new Icon
{
Image = bytes,
Format = format
};
Priority = 10;
}
public string Path { get; set; }
public int? DefinedWidth { get; set; }
public int? DefinedHeight { get; set; }
public Icon Icon { get; set; }
public int Priority { get; set; }
}

View File

@ -1,22 +1,21 @@
using Bit.Core.Utilities;
using Serilog.Events;
namespace Bit.Icons
namespace Bit.Icons;
public class Program
{
public class Program
public static void Main(string[] args)
{
public static void Main(string[] args)
{
Host
.CreateDefaultBuilder(args)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup<Startup>();
webBuilder.ConfigureLogging((hostingContext, logging) =>
logging.AddSerilog(hostingContext, e => e.Level >= LogEventLevel.Error));
})
.Build()
.Run();
}
Host
.CreateDefaultBuilder(args)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup<Startup>();
webBuilder.ConfigureLogging((hostingContext, logging) =>
logging.AddSerilog(hostingContext, e => e.Level >= LogEventLevel.Error));
})
.Build()
.Run();
}
}

View File

@ -1,24 +1,23 @@
namespace Bit.Icons.Services
namespace Bit.Icons.Services;
public class DomainMappingService : IDomainMappingService
{
public class DomainMappingService : IDomainMappingService
private readonly Dictionary<string, string> _map = new Dictionary<string, string>
{
private readonly Dictionary<string, string> _map = new Dictionary<string, string>
{
["login.yahoo.com"] = "yahoo.com",
["accounts.google.com"] = "google.com",
["photo.walgreens.com"] = "walgreens.com",
["passport.yandex.com"] = "yandex.com",
// TODO: Add others here
};
["login.yahoo.com"] = "yahoo.com",
["accounts.google.com"] = "google.com",
["photo.walgreens.com"] = "walgreens.com",
["passport.yandex.com"] = "yandex.com",
// TODO: Add others here
};
public string MapDomain(string hostname)
public string MapDomain(string hostname)
{
if (_map.ContainsKey(hostname))
{
if (_map.ContainsKey(hostname))
{
return _map[hostname];
}
return hostname;
return _map[hostname];
}
return hostname;
}
}

View File

@ -1,7 +1,6 @@
namespace Bit.Icons.Services
namespace Bit.Icons.Services;
public interface IDomainMappingService
{
public interface IDomainMappingService
{
string MapDomain(string hostname);
}
string MapDomain(string hostname);
}

View File

@ -1,9 +1,8 @@
using Bit.Icons.Models;
namespace Bit.Icons.Services
namespace Bit.Icons.Services;
public interface IIconFetchingService
{
public interface IIconFetchingService
{
Task<IconResult> GetIconAsync(string domain);
}
Task<IconResult> GetIconAsync(string domain);
}

View File

@ -3,448 +3,447 @@ using System.Text;
using AngleSharp.Html.Parser;
using Bit.Icons.Models;
namespace Bit.Icons.Services
namespace Bit.Icons.Services;
public class IconFetchingService : IIconFetchingService
{
public class IconFetchingService : IIconFetchingService
private readonly HashSet<string> _iconRels =
new HashSet<string> { "icon", "apple-touch-icon", "shortcut icon" };
private readonly HashSet<string> _blacklistedRels =
new HashSet<string> { "preload", "image_src", "preconnect", "canonical", "alternate", "stylesheet" };
private readonly HashSet<string> _iconExtensions =
new HashSet<string> { ".ico", ".png", ".jpg", ".jpeg" };
private readonly string _pngMediaType = "image/png";
private readonly byte[] _pngHeader = new byte[] { 137, 80, 78, 71 };
private readonly byte[] _webpHeader = Encoding.UTF8.GetBytes("RIFF");
private readonly string _icoMediaType = "image/x-icon";
private readonly string _icoAltMediaType = "image/vnd.microsoft.icon";
private readonly byte[] _icoHeader = new byte[] { 00, 00, 01, 00 };
private readonly string _jpegMediaType = "image/jpeg";
private readonly byte[] _jpegHeader = new byte[] { 255, 216, 255 };
private readonly HashSet<string> _allowedMediaTypes;
private readonly HttpClient _httpClient;
private readonly ILogger<IIconFetchingService> _logger;
public IconFetchingService(ILogger<IIconFetchingService> logger)
{
private readonly HashSet<string> _iconRels =
new HashSet<string> { "icon", "apple-touch-icon", "shortcut icon" };
private readonly HashSet<string> _blacklistedRels =
new HashSet<string> { "preload", "image_src", "preconnect", "canonical", "alternate", "stylesheet" };
private readonly HashSet<string> _iconExtensions =
new HashSet<string> { ".ico", ".png", ".jpg", ".jpeg" };
private readonly string _pngMediaType = "image/png";
private readonly byte[] _pngHeader = new byte[] { 137, 80, 78, 71 };
private readonly byte[] _webpHeader = Encoding.UTF8.GetBytes("RIFF");
private readonly string _icoMediaType = "image/x-icon";
private readonly string _icoAltMediaType = "image/vnd.microsoft.icon";
private readonly byte[] _icoHeader = new byte[] { 00, 00, 01, 00 };
private readonly string _jpegMediaType = "image/jpeg";
private readonly byte[] _jpegHeader = new byte[] { 255, 216, 255 };
private readonly HashSet<string> _allowedMediaTypes;
private readonly HttpClient _httpClient;
private readonly ILogger<IIconFetchingService> _logger;
public IconFetchingService(ILogger<IIconFetchingService> logger)
_logger = logger;
_allowedMediaTypes = new HashSet<string>
{
_logger = logger;
_allowedMediaTypes = new HashSet<string>
{
_pngMediaType,
_icoMediaType,
_icoAltMediaType,
_jpegMediaType
};
_pngMediaType,
_icoMediaType,
_icoAltMediaType,
_jpegMediaType
};
_httpClient = new HttpClient(new HttpClientHandler
{
AllowAutoRedirect = false,
AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate,
});
_httpClient.Timeout = TimeSpan.FromSeconds(20);
_httpClient.MaxResponseContentBufferSize = 5000000; // 5 MB
_httpClient = new HttpClient(new HttpClientHandler
{
AllowAutoRedirect = false,
AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate,
});
_httpClient.Timeout = TimeSpan.FromSeconds(20);
_httpClient.MaxResponseContentBufferSize = 5000000; // 5 MB
}
public async Task<IconResult> GetIconAsync(string domain)
{
if (IPAddress.TryParse(domain, out _))
{
_logger.LogWarning("IP address: {0}.", domain);
return null;
}
public async Task<IconResult> GetIconAsync(string domain)
if (!Uri.TryCreate($"https://{domain}", UriKind.Absolute, out var parsedHttpsUri))
{
if (IPAddress.TryParse(domain, out _))
{
_logger.LogWarning("IP address: {0}.", domain);
return null;
}
_logger.LogWarning("Bad domain: {0}.", domain);
return null;
}
if (!Uri.TryCreate($"https://{domain}", UriKind.Absolute, out var parsedHttpsUri))
{
_logger.LogWarning("Bad domain: {0}.", domain);
return null;
}
var uri = parsedHttpsUri;
var response = await GetAndFollowAsync(uri, 2);
if ((response == null || !response.IsSuccessStatusCode) &&
Uri.TryCreate($"http://{parsedHttpsUri.Host}", UriKind.Absolute, out var parsedHttpUri))
{
Cleanup(response);
uri = parsedHttpUri;
response = await GetAndFollowAsync(uri, 2);
var uri = parsedHttpsUri;
var response = await GetAndFollowAsync(uri, 2);
if ((response == null || !response.IsSuccessStatusCode) &&
Uri.TryCreate($"http://{parsedHttpsUri.Host}", UriKind.Absolute, out var parsedHttpUri))
if (response == null || !response.IsSuccessStatusCode)
{
Cleanup(response);
uri = parsedHttpUri;
response = await GetAndFollowAsync(uri, 2);
if (response == null || !response.IsSuccessStatusCode)
var dotCount = domain.Count(c => c == '.');
if (dotCount > 1 && DomainName.TryParseBaseDomain(domain, out var baseDomain) &&
Uri.TryCreate($"https://{baseDomain}", UriKind.Absolute, out var parsedBaseUri))
{
var dotCount = domain.Count(c => c == '.');
if (dotCount > 1 && DomainName.TryParseBaseDomain(domain, out var baseDomain) &&
Uri.TryCreate($"https://{baseDomain}", UriKind.Absolute, out var parsedBaseUri))
{
Cleanup(response);
uri = parsedBaseUri;
response = await GetAndFollowAsync(uri, 2);
}
else if (dotCount < 2 &&
Uri.TryCreate($"https://www.{parsedHttpsUri.Host}", UriKind.Absolute, out var parsedWwwUri))
{
Cleanup(response);
uri = parsedWwwUri;
response = await GetAndFollowAsync(uri, 2);
}
Cleanup(response);
uri = parsedBaseUri;
response = await GetAndFollowAsync(uri, 2);
}
else if (dotCount < 2 &&
Uri.TryCreate($"https://www.{parsedHttpsUri.Host}", UriKind.Absolute, out var parsedWwwUri))
{
Cleanup(response);
uri = parsedWwwUri;
response = await GetAndFollowAsync(uri, 2);
}
}
}
if (response?.Content == null || !response.IsSuccessStatusCode)
if (response?.Content == null || !response.IsSuccessStatusCode)
{
_logger.LogWarning("Couldn't load a website for {0}: {1}.", domain,
response?.StatusCode.ToString() ?? "null");
Cleanup(response);
return null;
}
var parser = new HtmlParser();
using (response)
using (var htmlStream = await response.Content.ReadAsStreamAsync())
using (var document = await parser.ParseDocumentAsync(htmlStream))
{
uri = response.RequestMessage.RequestUri;
if (document.DocumentElement == null)
{
_logger.LogWarning("Couldn't load a website for {0}: {1}.", domain,
response?.StatusCode.ToString() ?? "null");
Cleanup(response);
_logger.LogWarning("No DocumentElement for {0}.", domain);
return null;
}
var parser = new HtmlParser();
using (response)
using (var htmlStream = await response.Content.ReadAsStreamAsync())
using (var document = await parser.ParseDocumentAsync(htmlStream))
var baseUrl = "/";
var baseUrlNode = document.QuerySelector("head base[href]");
if (baseUrlNode != null)
{
uri = response.RequestMessage.RequestUri;
if (document.DocumentElement == null)
var hrefAttr = baseUrlNode.Attributes["href"];
if (!string.IsNullOrWhiteSpace(hrefAttr?.Value))
{
_logger.LogWarning("No DocumentElement for {0}.", domain);
return null;
baseUrl = hrefAttr.Value;
}
var baseUrl = "/";
var baseUrlNode = document.QuerySelector("head base[href]");
if (baseUrlNode != null)
baseUrlNode = null;
hrefAttr = null;
}
var icons = new List<IconResult>();
var links = document.QuerySelectorAll("head link[href]");
if (links != null)
{
foreach (var link in links.Take(200))
{
var hrefAttr = baseUrlNode.Attributes["href"];
if (!string.IsNullOrWhiteSpace(hrefAttr?.Value))
var hrefAttr = link.Attributes["href"];
if (string.IsNullOrWhiteSpace(hrefAttr?.Value))
{
baseUrl = hrefAttr.Value;
continue;
}
baseUrlNode = null;
var relAttr = link.Attributes["rel"];
var sizesAttr = link.Attributes["sizes"];
if (relAttr != null && _iconRels.Contains(relAttr.Value.ToLower()))
{
icons.Add(new IconResult(hrefAttr.Value, sizesAttr?.Value));
}
else if (relAttr == null || !_blacklistedRels.Contains(relAttr.Value.ToLower()))
{
try
{
var extension = Path.GetExtension(hrefAttr.Value);
if (_iconExtensions.Contains(extension.ToLower()))
{
icons.Add(new IconResult(hrefAttr.Value, sizesAttr?.Value));
}
}
catch (ArgumentException) { }
}
sizesAttr = null;
relAttr = null;
hrefAttr = null;
}
var icons = new List<IconResult>();
var links = document.QuerySelectorAll("head link[href]");
if (links != null)
{
foreach (var link in links.Take(200))
{
var hrefAttr = link.Attributes["href"];
if (string.IsNullOrWhiteSpace(hrefAttr?.Value))
{
continue;
}
var relAttr = link.Attributes["rel"];
var sizesAttr = link.Attributes["sizes"];
if (relAttr != null && _iconRels.Contains(relAttr.Value.ToLower()))
{
icons.Add(new IconResult(hrefAttr.Value, sizesAttr?.Value));
}
else if (relAttr == null || !_blacklistedRels.Contains(relAttr.Value.ToLower()))
{
try
{
var extension = Path.GetExtension(hrefAttr.Value);
if (_iconExtensions.Contains(extension.ToLower()))
{
icons.Add(new IconResult(hrefAttr.Value, sizesAttr?.Value));
}
}
catch (ArgumentException) { }
}
sizesAttr = null;
relAttr = null;
hrefAttr = null;
}
links = null;
}
var iconResultTasks = new List<Task>();
foreach (var icon in icons.OrderBy(i => i.Priority).Take(10))
{
Uri iconUri = null;
if (icon.Path.StartsWith("//") && Uri.TryCreate($"{GetScheme(uri)}://{icon.Path.Substring(2)}",
UriKind.Absolute, out var slashUri))
{
iconUri = slashUri;
}
else if (Uri.TryCreate(icon.Path, UriKind.Relative, out var relUri))
{
iconUri = ResolveUri($"{GetScheme(uri)}://{uri.Host}", baseUrl, relUri.OriginalString);
}
else if (Uri.TryCreate(icon.Path, UriKind.Absolute, out var absUri))
{
iconUri = absUri;
}
if (iconUri != null)
{
var task = GetIconAsync(iconUri).ContinueWith(async (r) =>
{
var result = await r;
if (result != null)
{
icon.Path = iconUri.ToString();
icon.Icon = result.Icon;
}
});
iconResultTasks.Add(task);
}
}
await Task.WhenAll(iconResultTasks);
if (!icons.Any(i => i.Icon != null))
{
var faviconUri = ResolveUri($"{GetScheme(uri)}://{uri.Host}", "favicon.ico");
var result = await GetIconAsync(faviconUri);
if (result != null)
{
icons.Add(result);
}
else
{
_logger.LogWarning("No favicon.ico found for {0}.", uri.Host);
return null;
}
}
return icons.Where(i => i.Icon != null).OrderBy(i => i.Priority).First();
links = null;
}
}
private async Task<IconResult> GetIconAsync(Uri uri)
{
using (var response = await GetAndFollowAsync(uri, 2))
var iconResultTasks = new List<Task>();
foreach (var icon in icons.OrderBy(i => i.Priority).Take(10))
{
if (response?.Content?.Headers == null || !response.IsSuccessStatusCode)
Uri iconUri = null;
if (icon.Path.StartsWith("//") && Uri.TryCreate($"{GetScheme(uri)}://{icon.Path.Substring(2)}",
UriKind.Absolute, out var slashUri))
{
response?.Content?.Dispose();
iconUri = slashUri;
}
else if (Uri.TryCreate(icon.Path, UriKind.Relative, out var relUri))
{
iconUri = ResolveUri($"{GetScheme(uri)}://{uri.Host}", baseUrl, relUri.OriginalString);
}
else if (Uri.TryCreate(icon.Path, UriKind.Absolute, out var absUri))
{
iconUri = absUri;
}
if (iconUri != null)
{
var task = GetIconAsync(iconUri).ContinueWith(async (r) =>
{
var result = await r;
if (result != null)
{
icon.Path = iconUri.ToString();
icon.Icon = result.Icon;
}
});
iconResultTasks.Add(task);
}
}
await Task.WhenAll(iconResultTasks);
if (!icons.Any(i => i.Icon != null))
{
var faviconUri = ResolveUri($"{GetScheme(uri)}://{uri.Host}", "favicon.ico");
var result = await GetIconAsync(faviconUri);
if (result != null)
{
icons.Add(result);
}
else
{
_logger.LogWarning("No favicon.ico found for {0}.", uri.Host);
return null;
}
}
var format = response.Content.Headers?.ContentType?.MediaType;
var bytes = await response.Content.ReadAsByteArrayAsync();
response.Content.Dispose();
if (format == null || !_allowedMediaTypes.Contains(format))
return icons.Where(i => i.Icon != null).OrderBy(i => i.Priority).First();
}
}
private async Task<IconResult> GetIconAsync(Uri uri)
{
using (var response = await GetAndFollowAsync(uri, 2))
{
if (response?.Content?.Headers == null || !response.IsSuccessStatusCode)
{
response?.Content?.Dispose();
return null;
}
var format = response.Content.Headers?.ContentType?.MediaType;
var bytes = await response.Content.ReadAsByteArrayAsync();
response.Content.Dispose();
if (format == null || !_allowedMediaTypes.Contains(format))
{
if (HeaderMatch(bytes, _icoHeader))
{
if (HeaderMatch(bytes, _icoHeader))
{
format = _icoMediaType;
}
else if (HeaderMatch(bytes, _pngHeader) || HeaderMatch(bytes, _webpHeader))
{
format = _pngMediaType;
}
else if (HeaderMatch(bytes, _jpegHeader))
{
format = _jpegMediaType;
}
else
{
return null;
}
format = _icoMediaType;
}
else if (HeaderMatch(bytes, _pngHeader) || HeaderMatch(bytes, _webpHeader))
{
format = _pngMediaType;
}
else if (HeaderMatch(bytes, _jpegHeader))
{
format = _jpegMediaType;
}
else
{
return null;
}
return new IconResult(uri, bytes, format);
}
return new IconResult(uri, bytes, format);
}
}
private async Task<HttpResponseMessage> GetAndFollowAsync(Uri uri, int maxRedirectCount)
{
var response = await GetAsync(uri);
if (response == null)
{
return null;
}
return await FollowRedirectsAsync(response, maxRedirectCount);
}
private async Task<HttpResponseMessage> GetAsync(Uri uri)
{
if (uri == null)
{
return null;
}
private async Task<HttpResponseMessage> GetAndFollowAsync(Uri uri, int maxRedirectCount)
// Prevent non-http(s) and non-default ports
if ((uri.Scheme != "http" && uri.Scheme != "https") || !uri.IsDefaultPort)
{
var response = await GetAsync(uri);
if (response == null)
{
return null;
}
return await FollowRedirectsAsync(response, maxRedirectCount);
return null;
}
private async Task<HttpResponseMessage> GetAsync(Uri uri)
// Prevent local hosts (localhost, bobs-pc, etc) and IP addresses
if (!uri.Host.Contains(".") || IPAddress.TryParse(uri.Host, out _))
{
if (uri == null)
return null;
}
// Resolve host to make sure it is not an internal/private IP address
try
{
var hostEntry = Dns.GetHostEntry(uri.Host);
if (hostEntry?.AddressList.Any(ip => IsInternal(ip)) ?? true)
{
return null;
}
}
catch
{
return null;
}
// Prevent non-http(s) and non-default ports
if ((uri.Scheme != "http" && uri.Scheme != "https") || !uri.IsDefaultPort)
{
return null;
}
using (var message = new HttpRequestMessage())
{
message.RequestUri = uri;
message.Method = HttpMethod.Get;
// Prevent local hosts (localhost, bobs-pc, etc) and IP addresses
if (!uri.Host.Contains(".") || IPAddress.TryParse(uri.Host, out _))
{
return null;
}
// Let's add some headers to look like we're coming from a web browser request. Some websites
// will block our request without these.
message.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 " +
"(KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299");
message.Headers.Add("Accept-Language", "en-US,en;q=0.8");
message.Headers.Add("Cache-Control", "no-cache");
message.Headers.Add("Pragma", "no-cache");
message.Headers.Add("Accept", "text/html,application/xhtml+xml,application/xml;" +
"q=0.9,image/webp,image/apng,*/*;q=0.8");
// Resolve host to make sure it is not an internal/private IP address
try
{
var hostEntry = Dns.GetHostEntry(uri.Host);
if (hostEntry?.AddressList.Any(ip => IsInternal(ip)) ?? true)
{
return null;
}
return await _httpClient.SendAsync(message);
}
catch
{
return null;
}
}
}
using (var message = new HttpRequestMessage())
{
message.RequestUri = uri;
message.Method = HttpMethod.Get;
// Let's add some headers to look like we're coming from a web browser request. Some websites
// will block our request without these.
message.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 " +
"(KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299");
message.Headers.Add("Accept-Language", "en-US,en;q=0.8");
message.Headers.Add("Cache-Control", "no-cache");
message.Headers.Add("Pragma", "no-cache");
message.Headers.Add("Accept", "text/html,application/xhtml+xml,application/xml;" +
"q=0.9,image/webp,image/apng,*/*;q=0.8");
try
{
return await _httpClient.SendAsync(message);
}
catch
{
return null;
}
}
private async Task<HttpResponseMessage> FollowRedirectsAsync(HttpResponseMessage response,
int maxFollowCount, int followCount = 0)
{
if (response == null || response.IsSuccessStatusCode || followCount > maxFollowCount)
{
return response;
}
private async Task<HttpResponseMessage> FollowRedirectsAsync(HttpResponseMessage response,
int maxFollowCount, int followCount = 0)
if (!(response.StatusCode == HttpStatusCode.Redirect ||
response.StatusCode == HttpStatusCode.MovedPermanently ||
response.StatusCode == HttpStatusCode.RedirectKeepVerb ||
response.StatusCode == HttpStatusCode.SeeOther) ||
response.Headers.Location == null)
{
if (response == null || response.IsSuccessStatusCode || followCount > maxFollowCount)
{
return response;
}
Cleanup(response);
return null;
}
if (!(response.StatusCode == HttpStatusCode.Redirect ||
response.StatusCode == HttpStatusCode.MovedPermanently ||
response.StatusCode == HttpStatusCode.RedirectKeepVerb ||
response.StatusCode == HttpStatusCode.SeeOther) ||
response.Headers.Location == null)
Uri location = null;
if (response.Headers.Location.IsAbsoluteUri)
{
if (response.Headers.Location.Scheme != "http" && response.Headers.Location.Scheme != "https")
{
Cleanup(response);
return null;
}
Uri location = null;
if (response.Headers.Location.IsAbsoluteUri)
{
if (response.Headers.Location.Scheme != "http" && response.Headers.Location.Scheme != "https")
if (Uri.TryCreate($"https://{response.Headers.Location.OriginalString}",
UriKind.Absolute, out var newUri))
{
if (Uri.TryCreate($"https://{response.Headers.Location.OriginalString}",
UriKind.Absolute, out var newUri))
{
location = newUri;
}
}
else
{
location = response.Headers.Location;
location = newUri;
}
}
else
{
var requestUri = response.RequestMessage.RequestUri;
location = ResolveUri($"{GetScheme(requestUri)}://{requestUri.Host}",
response.Headers.Location.OriginalString);
location = response.Headers.Location;
}
}
else
{
var requestUri = response.RequestMessage.RequestUri;
location = ResolveUri($"{GetScheme(requestUri)}://{requestUri.Host}",
response.Headers.Location.OriginalString);
}
Cleanup(response);
var newResponse = await GetAsync(location);
if (newResponse != null)
Cleanup(response);
var newResponse = await GetAsync(location);
if (newResponse != null)
{
followCount++;
var redirectedResponse = await FollowRedirectsAsync(newResponse, maxFollowCount, followCount);
if (redirectedResponse != null)
{
followCount++;
var redirectedResponse = await FollowRedirectsAsync(newResponse, maxFollowCount, followCount);
if (redirectedResponse != null)
if (redirectedResponse != newResponse)
{
if (redirectedResponse != newResponse)
{
Cleanup(newResponse);
}
return redirectedResponse;
Cleanup(newResponse);
}
return redirectedResponse;
}
return null;
}
private bool HeaderMatch(byte[] imageBytes, byte[] header)
{
return imageBytes.Length >= header.Length && header.SequenceEqual(imageBytes.Take(header.Length));
}
return null;
}
private Uri ResolveUri(string baseUrl, params string[] paths)
private bool HeaderMatch(byte[] imageBytes, byte[] header)
{
return imageBytes.Length >= header.Length && header.SequenceEqual(imageBytes.Take(header.Length));
}
private Uri ResolveUri(string baseUrl, params string[] paths)
{
var url = baseUrl;
foreach (var path in paths)
{
var url = baseUrl;
foreach (var path in paths)
if (Uri.TryCreate(new Uri(url), path, out var r))
{
if (Uri.TryCreate(new Uri(url), path, out var r))
{
url = r.ToString();
}
url = r.ToString();
}
return new Uri(url);
}
return new Uri(url);
}
private void Cleanup(IDisposable obj)
private void Cleanup(IDisposable obj)
{
obj?.Dispose();
obj = null;
}
private string GetScheme(Uri uri)
{
return uri != null && uri.Scheme == "http" ? "http" : "https";
}
public static bool IsInternal(IPAddress ip)
{
if (IPAddress.IsLoopback(ip))
{
obj?.Dispose();
obj = null;
return true;
}
private string GetScheme(Uri uri)
var ipString = ip.ToString();
if (ipString == "::1" || ipString == "::" || ipString.StartsWith("::ffff:"))
{
return uri != null && uri.Scheme == "http" ? "http" : "https";
return true;
}
public static bool IsInternal(IPAddress ip)
// IPv6
if (ip.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6)
{
if (IPAddress.IsLoopback(ip))
{
return true;
}
var ipString = ip.ToString();
if (ipString == "::1" || ipString == "::" || ipString.StartsWith("::ffff:"))
{
return true;
}
// IPv6
if (ip.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6)
{
return ipString.StartsWith("fc") || ipString.StartsWith("fd") ||
ipString.StartsWith("fe") || ipString.StartsWith("ff");
}
// IPv4
var bytes = ip.GetAddressBytes();
return (bytes[0]) switch
{
0 => true,
10 => true,
127 => true,
169 => bytes[1] == 254, // Cloud environments, such as AWS
172 => bytes[1] < 32 && bytes[1] >= 16,
192 => bytes[1] == 168,
_ => false,
};
return ipString.StartsWith("fc") || ipString.StartsWith("fd") ||
ipString.StartsWith("fe") || ipString.StartsWith("ff");
}
// IPv4
var bytes = ip.GetAddressBytes();
return (bytes[0]) switch
{
0 => true,
10 => true,
127 => true,
169 => bytes[1] == 254, // Cloud environments, such as AWS
172 => bytes[1] < 32 && bytes[1] >= 16,
192 => bytes[1] == 168,
_ => false,
};
}
}

View File

@ -5,73 +5,72 @@ using Bit.Icons.Services;
using Bit.SharedWeb.Utilities;
using Microsoft.Net.Http.Headers;
namespace Bit.Icons
namespace Bit.Icons;
public class Startup
{
public class Startup
public Startup(IWebHostEnvironment env, IConfiguration configuration)
{
public Startup(IWebHostEnvironment env, IConfiguration configuration)
CultureInfo.DefaultThreadCurrentCulture = new CultureInfo("en-US");
Configuration = configuration;
Environment = env;
}
public IConfiguration Configuration { get; }
public IWebHostEnvironment Environment { get; }
public void ConfigureServices(IServiceCollection services)
{
// Options
services.AddOptions();
// Settings
var globalSettings = services.AddGlobalSettingsServices(Configuration, Environment);
var iconsSettings = new IconsSettings();
ConfigurationBinder.Bind(Configuration.GetSection("IconsSettings"), iconsSettings);
services.AddSingleton(s => iconsSettings);
// Cache
services.AddMemoryCache(options =>
{
CultureInfo.DefaultThreadCurrentCulture = new CultureInfo("en-US");
Configuration = configuration;
Environment = env;
options.SizeLimit = iconsSettings.CacheSizeLimit;
});
// Services
services.AddSingleton<IDomainMappingService, DomainMappingService>();
services.AddSingleton<IIconFetchingService, IconFetchingService>();
// Mvc
services.AddMvc();
}
public void Configure(
IApplicationBuilder app,
IWebHostEnvironment env,
IHostApplicationLifetime appLifetime,
GlobalSettings globalSettings)
{
app.UseSerilog(env, appLifetime, globalSettings);
// Add general security headers
app.UseMiddleware<SecurityHeadersMiddleware>();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
public IConfiguration Configuration { get; }
public IWebHostEnvironment Environment { get; }
public void ConfigureServices(IServiceCollection services)
app.Use(async (context, next) =>
{
// Options
services.AddOptions();
// Settings
var globalSettings = services.AddGlobalSettingsServices(Configuration, Environment);
var iconsSettings = new IconsSettings();
ConfigurationBinder.Bind(Configuration.GetSection("IconsSettings"), iconsSettings);
services.AddSingleton(s => iconsSettings);
// Cache
services.AddMemoryCache(options =>
context.Response.GetTypedHeaders().CacheControl = new CacheControlHeaderValue
{
options.SizeLimit = iconsSettings.CacheSizeLimit;
});
Public = true,
MaxAge = TimeSpan.FromDays(7)
};
await next();
});
// Services
services.AddSingleton<IDomainMappingService, DomainMappingService>();
services.AddSingleton<IIconFetchingService, IconFetchingService>();
// Mvc
services.AddMvc();
}
public void Configure(
IApplicationBuilder app,
IWebHostEnvironment env,
IHostApplicationLifetime appLifetime,
GlobalSettings globalSettings)
{
app.UseSerilog(env, appLifetime, globalSettings);
// Add general security headers
app.UseMiddleware<SecurityHeadersMiddleware>();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.Use(async (context, next) =>
{
context.Response.GetTypedHeaders().CacheControl = new CacheControlHeaderValue
{
Public = true,
MaxAge = TimeSpan.FromDays(7)
};
await next();
});
app.UseRouting();
app.UseEndpoints(endpoints => endpoints.MapDefaultControllerRoute());
}
app.UseRouting();
app.UseEndpoints(endpoints => endpoints.MapDefaultControllerRoute());
}
}