/// <summary>Delete the specified <see cref="IHostfileEntry"/>.</summary>
/// <param name="hostfileEntry">A <see cref="IHostfileEntry"/>.</param>
/// <returns>True if the specified <see cref="IHostfileEntry"/> was successfully deleted; otherwise false.</returns>
public bool DeleteChild(IHostfileEntry hostfileEntry)
{
if (this.Childs != null && this.Childs.Count > 0)
{
this.Childs.Remove(hostfileEntry.UniqueIdentifier);
}
return(false);
}
/// <summary>Add a child to the top of this <see cref="HostFile"/> instance.</summary>
/// <param name="child">The child entry.</param>
/// <returns>True if the specified <paramref name="child"/> was added to the list of childs; otherwise false.</returns>
public bool AddChildToTop(IHostfileEntry child)
{
if (this.Childs != null)
{
this.Childs.AddChildToTop(child);
return(true);
}
return(false);
}
/// <summary>Add a child to this <see cref="HostFile"/> instance.</summary>
/// <param name="child">The child entry.</param>
/// <returns>True if the specified <paramref name="child"/> was added to the list of childs; otherwise false.</returns>
public bool AddChild(IHostfileEntry child)
{
if (this.Childs != null)
{
this.Childs.Add(child);
this.OnPropertyChanged("Childs");
return(true);
}
return(false);
}
/// <summary>Initializes a new instance of the <see cref="HostfileEntry"/> class. </summary>
/// <param name="type">The entry type (e.g. <see cref="HostfileEntryType.Host"/>).</param>
/// <param name="parent">The parent.</param>
/// <param name="name">The name of this <see cref="HostfileEntry"/> instance.</param>
/// <param name="propertyChangedCallBack">This event is fired whenever a property of this object changes.</param>
protected HostfileEntry(HostfileEntryType type, IHostfileEntry parent, string name, EventHandler propertyChangedCallBack)
{
if (type.Equals(HostfileEntryType.NotSet) || name == null)
{
throw new ArgumentException("name");
}
this.EntryType = type;
this.Name = name;
this.Parent = parent;
this.PropertyChangedCallBack = propertyChangedCallBack;
}
/// <summary>Initializes a new instance of the <see cref="HostfileEntry"/> class. </summary>
/// <param name="type">The entry type (e.g. <see cref="HostfileEntryType.Host"/>).</param>
/// <param name="parent">The parent.</param>
/// <param name="name">The name of this <see cref="HostfileEntry"/> instance.</param>
/// <param name="propertyChangedCallBack">This event is fired whenever a property of this object changes.</param>
protected HostfileEntry(HostfileEntryType type, IHostfileEntry parent, string name, EventHandler propertyChangedCallBack)
{
if (type.Equals(HostfileEntryType.NotSet) || name == null)
{
throw new ArgumentException("name");
}
this.EntryType = type;
this.Name = name;
this.Parent = parent;
this.PropertyChangedCallBack = propertyChangedCallBack;
}
/// <summary>Initializes a new instance of the <see cref="HostfileEntry"/> class. </summary>
/// <param name="type">The entry type (e.g. <see cref="HostfileEntryType.Host"/>).</param>
/// <param name="parent">The parent.</param>
/// <param name="name">The name of this <see cref="HostfileEntry"/> instance.</param>
/// <param name="description">A description text.</param>
/// <param name="childs">The childs.</param>
/// <param name="propertyChangedCallBack">This event is fired whenever a property of this object changes.</param>
protected HostfileEntry(HostfileEntryType type, IHostfileEntry parent, string name, string description, HostfileEntryCollection childs, EventHandler propertyChangedCallBack)
{
if (type.Equals(HostfileEntryType.NotSet) || string.IsNullOrEmpty(name))
{
throw new ArgumentException("name");
}
this.EntryType = type;
this.Name = name;
this.Description = description;
this.Parent = parent;
this.Childs = childs;
this.PropertyChangedCallBack = propertyChangedCallBack;
}
/// <summary>Initializes a new instance of the <see cref="HostfileEntry"/> class. </summary>
/// <param name="type">The entry type (e.g. <see cref="HostfileEntryType.Host"/>).</param>
/// <param name="parent">The parent.</param>
/// <param name="name">The name of this <see cref="HostfileEntry"/> instance.</param>
/// <param name="description">A description text.</param>
/// <param name="childs">The childs.</param>
/// <param name="propertyChangedCallBack">This event is fired whenever a property of this object changes.</param>
protected HostfileEntry(HostfileEntryType type, IHostfileEntry parent, string name, string description, HostfileEntryCollection childs, EventHandler propertyChangedCallBack)
{
if (type.Equals(HostfileEntryType.NotSet) || string.IsNullOrEmpty(name))
{
throw new ArgumentException("name");
}
this.EntryType = type;
this.Name = name;
this.Description = description;
this.Parent = parent;
this.Childs = childs;
this.PropertyChangedCallBack = propertyChangedCallBack;
}
/// <summary>
/// Move the specified <paramref name="hostfileEntry"/> down.
/// </summary>
/// <param name="hostfileEntry">A <see cref="IHostfileEntry"/> object.</param>
/// <returns>True if the specified <paramref name="hostfileEntry"/> was successfully moved down; otherwise false.</returns>
public bool MoveDown(IHostfileEntry hostfileEntry)
{
if (hostfileEntry != null)
{
if (hostfileEntry.HasParent)
{
hostfileEntry.MoveDown();
}
else
{
this.HostFileInstance.MoveDown(hostfileEntry.UniqueIdentifier);
}
}
return(false);
}
/// <summary>Remove the specified <paramref name="hostfileEntry"/>.</summary>
/// <param name="hostfileEntry">A <see cref="IHostfileEntry"/> object.</param>
/// <returns>True if the specified <paramref name="hostfileEntry"/> was successfully removed; otherwise false.</returns>
public bool Remove(IHostfileEntry hostfileEntry)
{
if (hostfileEntry != null)
{
if (hostfileEntry.HasParent)
{
hostfileEntry.Delete();
}
else
{
this.HostFileInstance.Remove(hostfileEntry.UniqueIdentifier);
}
}
return(false);
}
/// <summary>Delete the specified <see cref="IHostfileEntry"/>.</summary>
/// <param name="hostfileEntry">A <see cref="IHostfileEntry"/>.</param>
/// <returns>True if the specified <see cref="IHostfileEntry"/> was successfully deleted; otherwise false.</returns>
public bool DeleteChild(IHostfileEntry hostfileEntry)
{
if (this.Childs != null && this.Childs.Count > 0)
{
this.Childs.Remove(hostfileEntry.UniqueIdentifier);
}
return false;
}
/// <summary>Add a child to the top of this <see cref="HostFile"/> instance.</summary>
/// <param name="child">The child entry.</param>
/// <returns>True if the specified <paramref name="child"/> was added to the list of childs; otherwise false.</returns>
public bool AddChildToTop(IHostfileEntry child)
{
if (this.Childs != null)
{
this.Childs.AddChildToTop(child);
return true;
}
return false;
}
/// <summary>Remove the specified <paramref name="hostfileEntry"/>.</summary>
/// <param name="hostfileEntry">A <see cref="IHostfileEntry"/> object.</param>
/// <returns>True if the specified <paramref name="hostfileEntry"/> was successfully removed; otherwise false.</returns>
public bool Remove(IHostfileEntry hostfileEntry)
{
if (hostfileEntry != null)
{
if (hostfileEntry.HasParent)
{
hostfileEntry.Delete();
}
else
{
this.HostFileInstance.Remove(hostfileEntry.UniqueIdentifier);
}
}
return false;
}
/// <summary>
/// Move the specified <paramref name="hostfileEntry"/> up.
/// </summary>
/// <param name="hostfileEntry">A <see cref="IHostfileEntry"/> object.</param>
/// <returns>True if the specified <paramref name="hostfileEntry"/> was successfully moved up; otherwise false.</returns>
public bool MoveUp(IHostfileEntry hostfileEntry)
{
if (hostfileEntry != null)
{
if (hostfileEntry.HasParent)
{
hostfileEntry.MoveUp();
}
else
{
this.HostFileInstance.MoveUp(hostfileEntry.UniqueIdentifier);
}
}
return false;
}
/// <summary>Toggle the active state of the <see cref="IHostfileEntry"/> with the specified <paramref name="uniqueIdentifier"/>.</summary>
/// <param name="uniqueIdentifier">The unique identifier of an <see cref="IHostfileEntry"/> object.</param>
/// <returns>True if the active state of the <see cref="IHostfileEntry"/> with the specified <paramref name="uniqueIdentifier"/> was successfully toggled; otherwise false.</returns>
public bool ToggleActiveState(Guid uniqueIdentifier)
{
/* abort if there are no childs in this host file */
if (this.Childs == null || this.Childs.Count == 0)
{
return(false);
}
/* get the host file entry with the specified unique identifier */
IHostfileEntry hostFileEntry = this.Childs.GetElementBy(uniqueIdentifier);
if (hostFileEntry == null || hostFileEntry.IsActivatable == false)
{
/* abort if the host file entry was not found or is not activatable */
return(false);
}
/* cast the current host file entry to an activatable hostfile entry */
ActivatableHostfileEntry activatableHostfileEntry = hostFileEntry as ActivatableHostfileEntry;
if (activatableHostfileEntry == null)
{
/* abort if the host file entry is not an ActivatableHostfileEntry */
return(false);
}
/* variables */
bool isGroup = activatableHostfileEntry.EntryType.Equals(HostfileEntryType.HostGroup);
bool isHost = activatableHostfileEntry.EntryType.Equals(HostfileEntryType.Host);
/* new states */
bool previousState = activatableHostfileEntry.IsActive;
bool newState = !previousState;
/* no exclusive toggle mode: groups */
if (isGroup && this.ExclusiveGroupToggleModeIsEnabled == false)
{
activatableHostfileEntry.IsActive = newState;
return(true);
}
/* no exclusive toggle mode: hosts */
if (isHost && this.ExclusiveHostToggleModeIsEnabled == false)
{
activatableHostfileEntry.IsActive = newState;
return(true);
}
/* just deactivate the current entry */
if (newState == false && this.ExclusiveGroupToggleModeIsEnabled == false && this.ExclusiveHostToggleModeIsEnabled == false)
{
activatableHostfileEntry.IsActive = false;
return(true);
}
/* deactivate the current entry and all other groups */
if (newState == false && isGroup && this.ExclusiveGroupToggleModeIsEnabled)
{
foreach (HostGroup entry in this.Childs.Groups)
{
entry.IsActive = false;
}
return(true);
}
/* deactivate the current entry and all other hosts */
if (newState == false && isHost && this.ExclusiveHostToggleModeIsEnabled)
{
foreach (Host entry in this.Childs.Hosts)
{
entry.IsActive = false;
}
return(true);
}
/* toggle states: groups only */
if (isGroup && this.ExclusiveGroupToggleModeIsEnabled)
{
foreach (HostGroup entry in this.Childs.Groups)
{
entry.IsActive = entry.UniqueIdentifier.Equals(uniqueIdentifier) ? true : false;
}
}
/* toggle states: hosts only */
if (isHost && this.ExclusiveHostToggleModeIsEnabled)
{
foreach (Host entry in this.Childs.Hosts)
{
entry.IsActive = entry.UniqueIdentifier.Equals(uniqueIdentifier) ? true : false;
}
}
return(true);
}
/// <summary>Get a <see cref="HostFile"/> object for the host file with the specified <paramref name="hostFilePath"/>.</summary>
/// <param name="hostFilePath">The host file path.</param>
/// <returns>An initialized <see cref="HostFile"/> object.</returns>
private HostFile GetHostfile(string hostFilePath)
{
List <string> lines = this.DataAccess.GetHostfileContent(hostFilePath);
HostFile hostFile = HostFile.CreateHostFile(hostFilePath);
HostfileLineByLineNavigator navigator = new HostfileLineByLineNavigator(lines);
HostfileEntryCollection collection = new HostfileEntryCollection(hostFile.PropertyChangedCallBack);
foreach (HostfileLine line in navigator)
{
if (line.IsMultiLineComment)
{
/* multi line comment */
if (collection.GetElementBy(HostfileEntryType.Comment, line.MultiLineCommentText) == null)
{
collection.Add(new Comment(line.MultiLineCommentText, hostFile.PropertyChangedCallBack));
}
}
else if (line.IsToggleModeOption)
{
string value = line.Values.FirstOrDefault();
if (value != null)
{
/* group toggle-mode */
if (value.Equals("group", StringComparison.OrdinalIgnoreCase))
{
hostFile.ExclusiveGroupToggleModeIsEnabled = true;
}
/* host toggle-mode */
if (value.Equals("host", StringComparison.OrdinalIgnoreCase))
{
hostFile.ExclusiveHostToggleModeIsEnabled = true;
}
}
}
else if (line.IsGlobalComment)
{
/* single comment */
collection.Add(new Comment(line.Values.FirstOrDefault(), hostFile.PropertyChangedCallBack));
}
else if (line.IsGroupStart)
{
/* host group */
HostGroup group = new HostGroup(line.GroupName, line.DescriptionText, hostFile.PropertyChangedCallBack);
collection.Add(group);
}
else if (line.IsHost)
{
/* host */
IHostfileEntry parentItem = line.IsMemberOfHostGroup
? collection.GetElementBy(
HostfileEntryType.HostGroup, line.GroupName)
: null;
HostGroup parentGroup = parentItem != null ? parentItem as HostGroup : null;
Host host = new Host(parentGroup, line.Values.FirstOrDefault(), line.DescriptionText, hostFile.PropertyChangedCallBack)
{
IsActive = line.IsActive
};
/* domains */
string domainString = line.Values.LastOrDefault();
if (string.IsNullOrEmpty(domainString) == false)
{
List <string> domainNames = domainString.Split(' ').Select(domain => domain.Trim()).ToList();
foreach (string domainName in domainNames)
{
host.Childs.Add(new Domain(host, domainName, hostFile.PropertyChangedCallBack));
}
}
if (parentGroup != null)
{
parentGroup.Childs.Add(host);
}
else
{
collection.Add(host);
}
}
}
/* attach entry collection to host file */
hostFile.Childs = collection;
return(hostFile);
}
/// <summary>Initializes a new instance of the <see cref="ActivatableHostfileEntry"/> class.</summary>
/// <param name="entryType">The entry type.</param>
/// <param name="parent">The parent <see cref="IHostfileEntry"/>.</param>
/// <param name="name">The name of the enntry.</param>
/// <param name="description">The description text.</param>
/// <param name="childs">The childs.</param>
/// <param name="propertyChangedCallBack">This event is fired whenever a property of this object changes.</param>
protected ActivatableHostfileEntry(HostfileEntryType entryType, IHostfileEntry parent, string name, string description, HostfileEntryCollection childs, EventHandler propertyChangedCallBack)
: base(entryType, parent, name, description, childs, propertyChangedCallBack)
{
this.IsActivatable = true;
}
/// <summary>Add a child to the top of this <see cref="HostFile"/> instance.</summary>
/// <param name="child">The child entry.</param>
/// <returns>True if the specified <paramref name="child"/> was added to the list of childs; otherwise false.</returns>
public bool AddChildToTop(IHostfileEntry child)
{
if (this.Childs != null)
{
this.Childs.AddChildToTop(child);
this.OnPropertyChanged("Childs");
return true;
}
return false;
}
/// <summary>Initializes a new instance of the <see cref="ActivatableHostfileEntry"/> class.</summary>
/// <param name="entryType">The entry type.</param>
/// <param name="parent">The parent <see cref="IHostfileEntry"/>.</param>
/// <param name="name">The name of the enntry.</param>
/// <param name="description">The description text.</param>
/// <param name="childs">The childs.</param>
/// <param name="propertyChangedCallBack">This event is fired whenever a property of this object changes.</param>
protected ActivatableHostfileEntry(HostfileEntryType entryType, IHostfileEntry parent, string name, string description, HostfileEntryCollection childs, EventHandler propertyChangedCallBack)
: base(entryType, parent, name, description, childs, propertyChangedCallBack)
{
this.IsActivatable = true;
}
