public void Load(Stream s)
{
XDocument doc = XDocument.Load(s);
UserName = doc.Root.Element("UserName").Value;
Sites.Clear();
foreach (var node in doc.Root.Element("Sites").Elements("Site"))
{
PasswordType pwType = PasswordType.LongPassword; // standard
var typeElement = node.Element("Type");
if (null != typeElement)
{
pwType = SerializePasswordTypeType.First(row => row.Value == typeElement.Value).Key;
}
SiteEntry entry = new SiteEntry(
siteName: node.Element("SiteName").Value,
counter: int.Parse(node.Element("Counter").Value),
login: node.Element("Login").Value,
type: pwType
);
Sites.Add(entry);
}
}
/// <summary>
/// Copy constructor
/// </summary>
public SiteEntry(SiteEntry copyFrom)
{
SiteName = copyFrom.SiteName;
Login = copyFrom.Login;
Counter = copyFrom.Counter;
Type = copyFrom.Type;
}
/// <summary>
/// Load from a stream (typically: an XML file)
/// </summary>
/// <param name="s">open stream</param>
public void Load(Stream s)
{
XDocument doc = XDocument.Load(s);
UserName = doc.Root.Element("UserName").Value;
Sites.Clear();
foreach (var node in doc.Root.Element("Sites").Elements("Site"))
{
PasswordType pwType = PasswordType.LongPassword; // standard
var typeElement = node.Element("Type");
if (null != typeElement)
{
pwType = SerializePasswordTypeType.First(row => row.Value == typeElement.Value).Key;
}
SiteEntry entry = new SiteEntry(
siteName: node.Element("SiteName").Value,
counter: int.Parse(node.Element("Counter").Value),
login: node.Element("Login").Value,
type: pwType
);
Sites.Add(entry);
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="first">first (can be null if second is not null)</param>
/// <param name="second">second (can be null if first is not null)</param>
/// <param name="which">recommended resolution</param>
public MergedEntry(SiteEntry first, SiteEntry second, Resolution which)
{
if (first == null && second == null)
{
throw new ArgumentException("both are not allowed to be null");
}
First = first;
Second = second;
Which = which;
}
/// <summary>
/// Perform simple merge. UserName must be same in both configurations already.
/// </summary>
/// <param name="firstCfg">first ("our") configuration</param>
/// <param name="secondCfg">second ("remote") configuration</param>
/// <returns>merge result</returns>
public static Result Perform(Configuration firstCfg, Configuration secondCfg)
{
if (firstCfg.UserName != secondCfg.UserName)
{
throw new ArgumentException("Configurations are not compatible, they use different user names ('" + firstCfg.UserName + "' != '" + secondCfg.UserName + "')");
}
var result = new Result(firstCfg.UserName);
// we only consider additions, not deletes.
var left = firstCfg.Sites.ToList();
var right = secondCfg.Sites.ToList();
// first: find entries with the same site names
while (left.Count > 0)
{
var first = left[0];
left.RemoveAt(0);
SiteEntry second = null;
// find partner in right
foreach (var item in right)
{
if (item.SiteName == first.SiteName)
{ // found partner.
second = item;
right.Remove(item);
break;
}
}
if (null == second)
{ // no partner? we're new in the original and just stay as is
result.SitesMerged.Add(new MergedEntry(first, null, MergedEntry.Resolution.FirstNew));
}
else if (first.Type == second.Type && first.Counter == second.Counter && first.Login == second.Login && first.SiteName == second.SiteName && first.Type == second.Type)
{ // all the same
result.SitesMerged.Add(new MergedEntry(first, second, MergedEntry.Resolution.Identical));
}
else
{ // potential conflict - exists in both sites
// bigger counter? that one wins
if (first.Type == second.Type && first.Counter > second.Counter)
{
result.SitesMerged.Add(new MergedEntry(first, second, MergedEntry.Resolution.FirstNewer));
}
else if (first.Type == second.Type && first.Counter < second.Counter)
{
result.SitesMerged.Add(new MergedEntry(first, second, MergedEntry.Resolution.SecondNewer));
}
else
{ // same counter - conflict. try our best.
if (first.Type == second.Type && first.Login.StartsWith(second.Login))
{ // all the same but login is better in first
result.SitesMerged.Add(new MergedEntry(first, second, MergedEntry.Resolution.FirstNewer));
}
else if (first.Type == second.Type && second.Login.StartsWith(first.Login))
{ // all the same but login is better in second
result.SitesMerged.Add(new MergedEntry(first, second, MergedEntry.Resolution.SecondNewer));
}
else
{ // I have no idea
result.SitesMerged.Add(new MergedEntry(first, second, MergedEntry.Resolution.Conflict));
}
}
}
}
// remaining in right are new there
foreach (var item in right)
{
result.SitesMerged.Add(new MergedEntry(null, item, MergedEntry.Resolution.SecondNew));
}
return(result);
}
