keepass2android/src/Kp2aBusinessLogic/SearchDbHelper.cs

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/*
This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file is based on Keepassdroid, Copyright Brian Pellin.
Keepass2Android is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
Keepass2Android is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Keepass2Android. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
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using System.Collections.Generic;
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using System.Text.RegularExpressions;
using KeePass.Util.Spr;
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using KeePassLib;
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using KeePassLib.Collections;
using KeePassLib.Interfaces;
using KeePassLib.Utility;
namespace keepass2android
{
/// <summary>
/// Helper class providing methods to search a given database for specific things
/// </summary>
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public class SearchDbHelper
{
private readonly IKp2aApp _app;
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public SearchDbHelper(IKp2aApp app) {
_app = app;
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}
public PwGroup SearchForText (Database database, string str)
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{
SearchParameters sp = new SearchParameters {SearchString = str};
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return Search(database, sp, null);
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}
public PwGroup Search(Database database, SearchParameters sp, IDictionary<PwUuid, KeyValuePair<string, string>> resultContexts)
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{
if(sp.RegularExpression) // Validate regular expression
{
new Regex(sp.SearchString);
}
string strGroupName = _app.GetResourceString(UiStringKey.search_results) + " (\"" + sp.SearchString + "\")";
PwGroup pgResults = new PwGroup(true, true, strGroupName, PwIcon.EMailSearch) {IsVirtual = true};
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PwObjectList<PwEntry> listResults = pgResults.Entries;
database.Root.SearchEntries(sp, listResults, resultContexts, new NullStatusLogger());
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return pgResults;
}
public PwGroup SearchForExactUrl (Database database, string url)
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{
SearchParameters sp = SearchParameters.None;
sp.SearchInUrls = true;
sp.SearchString = url;
if(sp.RegularExpression) // Validate regular expression
{
new Regex(sp.SearchString);
}
string strGroupName = _app.GetResourceString(UiStringKey.search_results) + " (\"" + sp.SearchString + "\")";
PwGroup pgResults = new PwGroup(true, true, strGroupName, PwIcon.EMailSearch) {IsVirtual = true};
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PwObjectList<PwEntry> listResults = pgResults.Entries;
database.Root.SearchEntries(sp, listResults, new NullStatusLogger());
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return pgResults;
}
private static String ExtractHost(String url)
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{
return UrlUtil.GetHost(url.Trim());
}
public PwGroup SearchForHost(Database database, String url, bool allowSubdomains)
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{
String host = ExtractHost(url);
string strGroupName = _app.GetResourceString(UiStringKey.search_results) + " (\"" + host + "\")";
PwGroup pgResults = new PwGroup(true, true, strGroupName, PwIcon.EMailSearch) {IsVirtual = true};
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if (String.IsNullOrWhiteSpace(host))
return pgResults;
foreach (PwEntry entry in database.Entries.Values)
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{
string otherUrl = entry.Strings.ReadSafe(PwDefs.UrlField);
otherUrl = SprEngine.Compile(otherUrl, new SprContext(entry, database.KpDatabase, SprCompileFlags.References));
String otherHost = ExtractHost(otherUrl);
if ((allowSubdomains) && (otherHost.StartsWith("www.")))
otherHost = otherHost.Substring(4); //remove "www."
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if (String.IsNullOrWhiteSpace(otherHost))
{
continue;
}
if (host.IndexOf(otherHost, StringComparison.InvariantCultureIgnoreCase) > -1)
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{
pgResults.AddEntry(entry, false);
}
}
return pgResults;
}
}
}