private bool SearchHibpForPasswords()
{
var sw = Stopwatch.StartNew();
var sha1 = new SHA1Managed();
var userEntryDictionary = new Dictionary <string, List <Entry> >();
foreach (var entry in this.Document.Entries)
{
if (entry.Records.Contains(RecordType.Password))
{
foreach (var record in entry.Records)
{
if (record.RecordType == RecordType.Password)
{
var sha1Bytes = sha1.ComputeHash(Encoding.UTF8.GetBytes(record.Text));
var passwordHash = BitConverter.ToString(sha1Bytes).Replace("-", ""); //dirty conversion to hex
if (!string.IsNullOrWhiteSpace(passwordHash))
{
if (!userEntryDictionary.TryGetValue(passwordHash, out var entries))
{
entries = new List <Entry>();
userEntryDictionary.Add(passwordHash, entries);
}
if (!entries.Contains(entry))
{
entries.Add(entry);
}
}
}
}
}
if (bwSearchHibp.CancellationPending)
{
return(false);
}
}
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "Passwords hashed at {0:0.0} ms", sw.ElapsedMilliseconds));
//sort all passwords
var userPasswords = new List <PasswordAndEntryStorage>();
foreach (var kvp in userEntryDictionary)
{
userPasswords.Add(new PasswordAndEntryStorage(kvp.Key, kvp.Value));
if (bwSearchHibp.CancellationPending)
{
return(false);
}
}
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "Passwords filled at {0:0.0} ms", sw.ElapsedMilliseconds));
//sort based on random value
if (Settings.HibpCheckWeakPasswordInRandomOrder)
{
userPasswords.Sort((item1, item2) => {
var count1 = item1.Entries.Count;
var count2 = item2.Entries.Count;
if (count1 > count2) //sort based on number of entries with the same password
{
return(-1);
}
else if (count1 < count2)
{
return(+1);
}
else //just randomize
{
return((item1.RandomValue < item2.RandomValue) ? -1
: (item1.RandomValue > item2.RandomValue) ? +1
: 0);
}
});
}
else
{
userPasswords.Sort((item1, item2) => {
var count1 = item1.Entries.Count;
var count2 = item2.Entries.Count;
if (count1 > count2) //sort based on number of entries with the same password
{
return(-1);
}
else if (count1 < count2)
{
return(+1);
}
else //order by password hash
{
return(string.CompareOrdinal(item1.PasswordHash, item2.PasswordHash));
}
});
}
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "Passwords sorted at {0:0.0} ms", sw.ElapsedMilliseconds));
//check all hashes
var userPasswordCount = userPasswords.Count;
for (var i = 0; i < userPasswordCount; i++)
{
var percentage = i * 100 / userPasswordCount;
var item = userPasswords[i];
try {
if (Hibp.IsPassworPwned(item.PasswordHash))
{
ReportWebStatus(percentage, HttpStatusCode.OK, null, item.Entries[0].Title, (userPasswordCount - i) * Settings.HibpThrottleInterval);
foreach (var entry in item.Entries)
{
var lvi = new ListViewItem(entry.Title)
{
Tag = entry,
ImageIndex = 1,
ToolTipText = $"Password is present in breached password collection at Have I been pwned? site."
};
bwSearchHibp.ReportProgress(percentage, new ProgressState(lvi));
}
}
else
{
ReportWebStatus(percentage, HttpStatusCode.NotFound, null, item.Entries[0].Title, (userPasswordCount - i) * Settings.HibpThrottleInterval);
}
} catch (WebException ex) {
if (ex.Response is HttpWebResponse response)
{
ReportWebStatus(percentage, response.StatusCode, response.StatusDescription, item.Entries[0].Title, (userPasswordCount - i) * Settings.HibpThrottleInterval);
}
else
{
ReportWebStatus(percentage, null, ex.Message, item.Entries[0].Title, (userPasswordCount - i) * Settings.HibpThrottleInterval);
}
}
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "Password for {1} entries searched at {0:0.0} ms (followed by {2} ms throttling)", sw.ElapsedMilliseconds, item.Entries.Count, Settings.HibpThrottleInterval));
Thread.Sleep(Settings.HibpThrottleInterval);
}
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "{1} accounts searched in {0:0.0} ms (albeit with {2} ms throttling)", sw.ElapsedMilliseconds, userPasswords.Count, Settings.HibpThrottleInterval));
return(true);
}
private bool SearchHibpForBreaches()
{
//collect all user-names
var sw = Stopwatch.StartNew();
var userEntryDictionary = new Dictionary <string, List <Entry> >();
foreach (var entry in this.Document.Entries)
{
if (entry.Records.Contains(RecordType.Password))
{
foreach (var record in entry.Records)
{
if ((record.RecordType == RecordType.EmailAddress) || (record.RecordType == RecordType.UserName))
{
var text = record.Text;
if (!string.IsNullOrWhiteSpace(text))
{
if (!userEntryDictionary.TryGetValue(text, out var entries))
{
entries = new List <Entry>();
userEntryDictionary.Add(text, entries);
}
if (!entries.Contains(entry))
{
entries.Add(entry);
}
}
}
}
}
if (bwSearchHibp.CancellationPending)
{
return(false);
}
}
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "User names cached at {0:0.0} ms", sw.ElapsedMilliseconds));
//move dictionary to list so it gets sorted based on frequency
var userEntryList = new List <AccountAndEntryStorage>();
foreach (var kvp in userEntryDictionary)
{
userEntryList.Add(new AccountAndEntryStorage(kvp.Key, kvp.Value));
}
userEntryList.Sort((item1, item2) => {
var count1 = item1.Entries.Count;
var count2 = item2.Entries.Count;
return((count1 > count2) ? -1
: (count1 < count2) ? +1
: string.CompareOrdinal(item1.Account, item2.Account));
});
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "User names sorted at {0:0.0} ms", sw.ElapsedMilliseconds));
//Search all accounts for breaches
var userEntryCount = userEntryList.Count;
for (var i = 0; i < userEntryCount; i++)
{
var userEntry = userEntryList[i];
var percentage = i * 100 / userEntryCount;
try {
var breaches = Hibp.GetAllBreaches(userEntry.Account);
ReportWebStatus(percentage, HttpStatusCode.OK, null, userEntry.Account, (userEntryCount - i) * Settings.HibpThrottleInterval);
foreach (var entry in userEntry.Entries)
{
var modified = entry.PasswordModificationTime;
foreach (var record in entry.Records)
{
if (record.RecordType == RecordType.Url)
{
var url = record.Text;
foreach (var breach in breaches)
{
if (breach.IsApplicable(url, modified, entry.Title)) //check only if we know the domain
{
var lvi = new ListViewItem(entry.Title)
{
Tag = entry,
ImageIndex = 1,
ToolTipText = $"Account is present in {breach.Title} breach:\n{FilterHtml(breach.Description)}"
};
bwSearchHibp.ReportProgress(percentage, new ProgressState(lvi));
break;
}
}
}
}
}
} catch (WebException ex) {
if (ex.Response is HttpWebResponse response)
{
ReportWebStatus(percentage, response.StatusCode, response.StatusDescription, userEntry.Account, (userEntryCount - i) * Settings.HibpThrottleInterval);
}
else
{
ReportWebStatus(percentage, null, ex.Message, userEntry.Account, (userEntryCount - i) * Settings.HibpThrottleInterval);
}
}
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "Account {1} searched at {0:0.0} ms (followed by {2} ms throttling)", sw.ElapsedMilliseconds, userEntry.Account, Settings.HibpThrottleInterval));
Thread.Sleep(Settings.HibpThrottleInterval);
}
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "{1} accounts searched in {0:0.0} ms (albeit with {2} ms throttling)", sw.ElapsedMilliseconds, userEntryList.Count, Settings.HibpThrottleInterval));
return(true);
}