/// <summary>
/// Parses xml nodes with user info into CS4User objects and returns them ina collection
/// </summary>
/// <param name="usersElements">user xml nodes</param>
/// <returns>CS4UserCollection with the data from the xml</returns>
private CS4UserCollection GetUsersFromXml(XmlNodeList usersElements)
{
CS4UserCollection users = new CS4UserCollection();
for (int curElementIndex = 0; curElementIndex < usersElements.Count; curElementIndex++)
{
string userLogin = usersElements[curElementIndex].Attributes["LoginName"].InnerText;
string userDomain = usersElements[curElementIndex].Attributes["LoginNameDomain"].InnerText;
string userName = usersElements[curElementIndex].Attributes["UserName"].InnerText;
string userEmail = usersElements[curElementIndex].Attributes["Email"].InnerText;
string userRole = usersElements[curElementIndex].Attributes["Role"].InnerText;
bool userTransfer = (usersElements[curElementIndex].Attributes["Transfer"].InnerText == "1" ? true : false);
int userId = 0;
Int32.TryParse(usersElements[curElementIndex].Attributes["Id"].InnerText, out userId);
CS4User user = new CS4User(
userId,
userDomain,
userLogin,
userName,
userEmail,
userTransfer,
IsUserInTeacherRole(userRole));
users.Add(user);
}
return(users);
}
/// <summary>
/// Adds a user to specified roles on the website
/// </summary>
/// <param name="SiteWeb">site to which the user will be assigned</param>
/// <param name="SiteUser">user to be added. Make sure its Roles collection contains some roles otherwise the user will not be added.</param>
private void AddSiteUser(CS4User siteUser)
{
string siteUrl = System.String.Empty;
SPSite site = null;
SPWeb siteWeb = null;
SPUser spUser = null;
foreach (CS4User.UserPermission userPermission in siteUser.UserRoles)
{
if (siteUrl != userPermission.WebUrl)
{
siteUrl = userPermission.WebUrl;
site = new SPSite(siteUrl);
siteWeb = site.OpenWeb();
try
{
spUser = siteWeb.SiteUsers[siteUser.UserLoginWithDomain];
}
catch
{
//user has not been added to this site yet
siteWeb.Users.Add(siteUser.UserLoginWithDomain, siteUser.Email, siteUser.UserName, "");
spUser = siteWeb.SiteUsers[siteUser.UserLoginWithDomain];
}
}
//siteWeb.Roles[userPermission.Role].AddUser(siteUser.UserLoginWithDomain, siteUser.Email, siteUser.UserName, "");
SPRoleAssignment roleAssignment = new SPRoleAssignment(spUser);
SPRoleDefinition roleDefinition = siteWeb.RoleDefinitions[userPermission.Role];
roleAssignment.RoleDefinitionBindings.Add(roleDefinition);
siteWeb.RoleAssignments.Add(roleAssignment);
}
}
public CS4User GetByUserId(int userId)
{
CS4User returnUser = null;
foreach (CS4User user in List)
{
if (user.UserId == userId)
{
returnUser = user;
break;
}
}
return(returnUser);
}
/// <summary>
/// Gets the list of users from Class Server database and checks
/// if users belong to Active Directory. This is necessary as
/// SLK sites base their permissions and membership on AD authentication
/// </summary>
/// <param name="ActiveDirectoryPath">LDAP path of the Active Directory</param>
/// <param name="LogFileName">file name of the log file (will be created in the working directory)</param>
/// <param name="worker">BackgroundWorker object, used to report progress</param>
/// <param name="e">not used</param>
/// <returns>"Completed" if successful, or exception message if there was an error.</returns>
public string VerifyAgainstActiveDirectory(string activeDirectoryPath, string logFileName,
BackgroundWorker worker, DoWorkEventArgs e)
{
try
{
CS4Database database = new CS4Database(SiteBuilder.Default.ClassServerDBConnectionString);
DataTable usersTable = null;
m_totalUsers = database.GetUsersList(ref usersTable);
LogFile log = new LogFile(logFileName);
log.WriteToLogFile("Verifying Class Server users against Active Directory at " + activeDirectoryPath);
ADHelper helper = new ADHelper();
helper.DoADBinding(activeDirectoryPath);
for (int userIndex = 0; userIndex < m_totalUsers; userIndex++)
{
CS4User user = new CS4User(usersTable.Rows[userIndex][0].ToString(), usersTable.Rows[userIndex][1].ToString(), System.String.Empty, System.String.Empty);
if (!helper.UserExistsInActiveDirectory(user.UserDomain, user.UserLogin))
{
log.WriteToLogFile(user.UserLoginWithDomain + " NOT FOUND");
m_usersNotInAD++;
}
else
{
log.WriteToLogFile(user.UserLoginWithDomain + " found");
}
m_usersProcessed++;
worker.ReportProgress(0, "Verified " + m_usersProcessed.ToString() + " of " + m_totalUsers.ToString() + " users.");
}
log.FinishLogging();
string sReport = "Completed.";
return(sReport);
}
catch (System.Exception ex)
{
//catching any exception here as this will be executed in a separate thread
return(ex.Message);
}
}
/// <summary>
/// Adds SharePoint group to SharePoint v3 site
/// </summary>
/// <param name="SiteURL">SharePoint v3 site URL</param>
/// <param name="GroupName">Group to be added</param>
/// <param name="GroupOwner">Group owner. If the user does not belong to site it will be added.</param>
/// <param name="DefaultUser">Default group user. If the user does not belong to site it will be added.</param>
/// <param name="OverwriteIfExists">If set, the group will be removed and created again, if it exists.</param>
/// <param name="ResultText">The method returns log of operations performed.</param>
/// <returns>true if the group is successfully added.</returns>
public bool CreateUsersGroup(string siteURL, string groupName, CS4User groupOwner,
CS4User defaultUser, bool overwriteIfExists, ref string resultText)
{
bool result = false;
resultText = String.Format(TextResources.AttemptingToCreateGroup, groupName) + Environment.NewLine;
SPSite site = null;
SPWeb siteWeb = null;
SPGroupCollection groups = null;
try
{
site = new SPSite(siteURL);
siteWeb = site.OpenWeb();
groups = siteWeb.SiteGroups;
}
catch (System.Exception ex)
{
resultText += TextResources.CantCreateGroup + ex.Message + System.Environment.NewLine;
return(result);
}
SPUser user = null;
bool createDefaultUser = false;
try
{
user = siteWeb.SiteUsers[defaultUser.UserLoginWithDomain];
}
catch
{
//user does not exist
createDefaultUser = true;
}
SPMember owner = null;
bool createGroupOwner = false;
try
{
owner = siteWeb.SiteUsers[groupOwner.UserLoginWithDomain];
}
catch
{
createGroupOwner = true;
}
try
{
if (createDefaultUser)
{
AddSiteUser(defaultUser);
user = siteWeb.SiteUsers[defaultUser.UserLoginWithDomain];
}
if (createGroupOwner)
{
AddSiteUser(groupOwner);
owner = siteWeb.SiteUsers[groupOwner.UserLoginWithDomain];
}
}
catch (System.Exception ex)
{
resultText += TextResources.NoGroupOwnerOrDefaultUser + ex.Message + Environment.NewLine;
return(result);
}
SPGroup group = null;
bool groupExists = false;
try
{
group = groups[groupName];
groupExists = true;
resultText += TextResources.GroupExists + Environment.NewLine;
}
catch
{
//group does not exist
}
try
{
if (groupExists)
{
if (overwriteIfExists)
{
SPUserCollection groupUsers = group.Users;
//emptying group users collection
foreach (SPUser groupUser in groupUsers)
{
group.RemoveUser(groupUser);
}
groups.Remove(groupName);
}
else
{
result = true;
return(result);
}
}
groups.Add(groupName, owner, user, String.Empty);
resultText += TextResources.GroupCreated + System.Environment.NewLine;
result = true;
}
catch (System.Exception ex)
{
resultText += ex.Message;
}
return(result);
}
/// <summary>
/// Methods for supporting CollectionBase interface
/// </summary>
public void Add(CS4User user)
{
List.Add(user);
}
/// <summary>
/// Does the actual work of creating an SLK site with groups and users.
/// </summary>
/// <param name="classData">Class to be created</param>
/// <param name="processingLog">Method returns log of actions performed</param>
private void ProcessClass(CS4Class classData, ref string processingLog)
{
string log = System.String.Empty;
SharePointV3 SLKweb = new SharePointV3();
CS4UserCollection classUsers = new CS4UserCollection();
CS4UserCollection groupUsers = new CS4UserCollection();
bool classAdded = false;
string classURL = String.Empty;
string classCreateResult = String.Empty;
CS4User groupsOwner = null;
log += System.Environment.NewLine + TextResources.ProcessingClass + classData.ClassName + System.Environment.NewLine;
if (classData.Transfer)
{
classAdded = SLKweb.CreateSite(
SiteBuilder.Default.SLKSchoolWeb,
classData.ClassWeb,
classData.ClassName,
String.Empty,
classData.ClassLCID,
classData.Overwrite,
ref classURL,
ref classCreateResult);
log += classCreateResult;
if (classAdded)
{
//adding site users
for (int classUserIndex = 0; classUserIndex < classData.Users.Count; classUserIndex++)
{
CS4User user = classData.Users.Item(classUserIndex);
if (user.Transfer)
{
user.UserRoles = this.DefineUserRoles(user.IsTeacher, classURL);
classUsers.Add(user);
//if the user is teacher, set it as group owner
//we only take first teacher to be groups owner as we only need one
if ((groupsOwner == null) && (user.IsTeacher))
{
groupsOwner = user;
}
}
else
{
log += string.Format(TextResources.UserNotForTransfer, user.UserLoginWithDomain) + System.Environment.NewLine;
}
}
string addUsersLog = String.Empty;
SLKweb.AssignUsersToSite(classURL, classUsers, ref addUsersLog);
log += addUsersLog;
//adding groups
for (int groupIndex = 0; groupIndex < classData.Groups.Count; groupIndex++)
{
log += string.Format(TextResources.ProcessingGroup, classData.Groups.Item(groupIndex).WebName) + System.Environment.NewLine;
if (classData.Groups.Item(groupIndex).Transfer)
{
//processing group users
groupUsers = new CS4UserCollection();
for (int groupUserIndex = 0; groupUserIndex < classData.Groups.Item(groupIndex).GroupUsers.Count; groupUserIndex++)
{
CS4User groupUser = classData.Groups.Item(groupIndex).GroupUsers.Item(groupUserIndex);
if (groupUser.Transfer)
{
groupUser.UserRoles = this.DefineUserRoles(groupUser.IsTeacher, classURL);
groupUsers.Add(groupUser);
}
else
{
log += string.Format(TextResources.GroupUserNotForTransfer, groupUser.UserLoginWithDomain) + System.Environment.NewLine;
}
}
//adding group
//only if we have a group owner and at least one group user
if ((groupUsers.Count > 0) && (groupsOwner != null))
{
//taking first user as default user
bool groupAdded = false;
string groupCreateResult = string.Empty;
groupAdded = SLKweb.CreateUsersGroup(
classURL,
classData.Groups.Item(groupIndex).WebName,
groupsOwner,
classData.Groups.Item(groupIndex).GroupUsers.Item(0),
classData.Groups.Item(groupIndex).Overwrite,
ref groupCreateResult);
//adding group users
log += groupCreateResult;
if (groupAdded)
{
string addGroupUsersLog = String.Empty;
SLKweb.AssignUsersToGroup(classURL, classData.Groups.Item(groupIndex).WebName, groupUsers, ref addGroupUsersLog);
log += addGroupUsersLog;
}
}
else
{
//not transferring this group
log += TextResources.GroupOwnerOrDefaultUserProblem + System.Environment.NewLine;
}
}
else
{
log += TextResources.GroupNotForTransfer + System.Environment.NewLine;
}
}
}
}
else
{
log += TextResources.ClassNotForTransfer + System.Environment.NewLine;
}
log += String.Format(TextResources.FinishedProcessingClass, classData.ClassName) + System.Environment.NewLine;
processingLog = log;
}
/// <summary>
/// For the class requested gets the assignments data from Class Server 4 database
/// and transfers assignments and grading points and teacher comments using SLK API
/// </summary>
/// <param name="classData">class information from Class Server 4 classes config file</param>
/// <param name="logText">returns log of operations performed</param>
/// <param name="learningPackages">information about learning packages available on SLK school site</param>
private void MoveAssignments(CS4Class classData, ref string logText, Hashtable learningPackages)
{
SharePointV3 assignmentSite = new SharePointV3();
string assignmentSiteUrl = assignmentSite.BuildSubSiteUrl(SiteBuilder.Default.SLKSchoolWeb, classData.ClassWeb);
//for the getmemberships operation to succeed the current user has to be an SLK instructor on the web site
//looping through all the class users to see if any of them are instructors
//and trying to open the class web with and instructor's token
SPWeb assignmentWeb = null;
SPWeb assignmentWebUnderCurrentUser = assignmentSite.OpenWeb(assignmentSiteUrl);
SPRoleDefinition instructorsRole = assignmentWebUnderCurrentUser.RoleDefinitions[SiteBuilder.Default.SLKInstructorSharePointRole];
bool foundInstructor = false;
foreach (CS4User user in classData.Users)
{
if ((user.IsTeacher) && (user.Transfer))
{
try
{
SPUser spUser = assignmentWebUnderCurrentUser.SiteUsers[user.UserLoginWithDomain];
SPUserToken token = spUser.UserToken;
SPSite site = new SPSite(assignmentSiteUrl, token);
assignmentWeb = site.OpenWeb();
if (assignmentWeb.AllRolesForCurrentUser.Contains(instructorsRole))
{
foundInstructor = true;
break;
}
}
catch
{
//doing nothing, will try the next instructor
}
}
}
if (!foundInstructor)
{
logText += TextResources.AssignmentsTransferErrorNoClassInstructors + Environment.NewLine;
return;
}
//open the Class SLK store
//note we are using SPWeb opened with an instructor's SPUserToken
Microsoft.SharePointLearningKit.SlkStore slkStore = SlkStore.GetStore(assignmentWeb);
//get all learners and instructors for the class
SlkMemberships memberships = slkStore.GetMemberships(assignmentWeb, null, null);
Dictionary <string, SlkUser> allLearners = new Dictionary <string, SlkUser>(
StringComparer.OrdinalIgnoreCase);
foreach (SlkUser learner in memberships.Learners)
{
allLearners.Add(learner.SPUser.LoginName, learner);
}
Dictionary <string, SlkUser> allInstructors = new Dictionary <string, SlkUser>(
StringComparer.OrdinalIgnoreCase);
foreach (SlkUser instructor in memberships.Instructors)
{
allInstructors.Add(instructor.SPUser.LoginName, instructor);
}
//instructors list will always be the same for all assignments
//because there is no link between assignments and teachers in CS4
SlkUserCollection classInstructors = new SlkUserCollection();
foreach (CS4User user in classData.Users)
{
if ((user.IsTeacher) && (user.Transfer))
{
SlkUser slkUser;
if (allInstructors.TryGetValue(user.UserLoginWithDomain, out slkUser))
{
classInstructors.Add(slkUser);
}
else
{
//instructor not found on slk site, log
logText += String.Format(TextResources.InstructorNotRegisteredWithSLKSite, user.UserLoginWithDomain, assignmentSiteUrl) + Environment.NewLine;
}
}
}
//get assignments for this class from the CS4 data base
CS4Database database = new CS4Database(SiteBuilder.Default.ClassServerDBConnectionString);
DataTable assignmentItems;
DataTable userAssignments;
int numAssignments = database.GetAssignments(classData.ClassId, out assignmentItems, out userAssignments);
//loop through assignments list
for (int assignmentIndex = 0; assignmentIndex < numAssignments; assignmentIndex++)
{
try
{
string packageIdent = (assignmentItems.Rows[assignmentIndex]["PackageIdentifier"] != System.DBNull.Value ? assignmentItems.Rows[assignmentIndex]["PackageIdentifier"].ToString() : String.Empty);
int assignmentId = (assignmentItems.Rows[assignmentIndex]["AssignmentID"] != System.DBNull.Value ? System.Convert.ToInt32(assignmentItems.Rows[assignmentIndex]["AssignmentID"]) : 0);
logText += String.Format(TextResources.TransferringAssignment, assignmentId.ToString()) + Environment.NewLine;
//get assignment's package identifier
string packageLocation = GetPackageLocation(packageIdent, learningPackages);
if (packageLocation.Length == 0)
{
if (packageIdent.Length == 0)
{
//log: not importing assignment as the package cannot be identified
logText += String.Format(TextResources.CantTransferAssignmentUnknownLearningResource, assignmentId) + Environment.NewLine;
}
else
{
//log - assignment cannot be imported as the package is not imported into slk
logText += String.Format(TextResources.CantTransferAssignmentNoLearningResource, assignmentId) + Environment.NewLine;
}
//move on to the next assignment
break;
}
//set assignment properties
AssignmentProperties properties = ReadAssignmentPropertiesFromDataRow(assignmentItems.Rows[assignmentIndex]);
Hashtable gradingPoints = new Hashtable();
Hashtable gradingComments = new Hashtable();
//set instructors list
foreach (SlkUser classInstructor in classInstructors)
{
properties.Instructors.Add(classInstructor);
}
//set learners list
for (int userAssignmentIndex = 0; userAssignmentIndex < userAssignments.Rows.Count; userAssignmentIndex++)
{
DataRow assignmentRow = userAssignments.Rows[userAssignmentIndex];
int userAssignmentTableID = (assignmentRow["AssignmentID"] == System.DBNull.Value) ? 0 : System.Convert.ToInt32(assignmentRow["AssignmentID"]);
int userId = (assignmentRow["StudentID"] == System.DBNull.Value) ? 0 : System.Convert.ToInt32(assignmentRow["StudentID"]);
bool isAssignmentGraded = (assignmentRow["HasTeacherGraded"].ToString().ToLower() == "true" ? true : false);
float points = (assignmentRow["Points"] == System.DBNull.Value) ? 0 : System.Convert.ToSingle(assignmentRow["Points"]);
string instructorComments = assignmentRow["TeacherComments"].ToString();
//to minimize sql queries the UserAssignments table contains all assignments for the class
//so we need to check if this row is for the assignment currently being processed
if (assignmentId == userAssignmentTableID)
{
//find this user in list of users from classes.xml
CS4User user = classData.Users.GetByUserId(userId);
if (user != null)
{
//see if this user is for transfer in classes.xml
if (user.Transfer)
{
//see if this user is a learner member on SLK site
SlkUser slkUser;
if (allLearners.TryGetValue(user.UserLoginWithDomain, out slkUser))
{
properties.Learners.Add(slkUser);
//save grading info for this learner to be used later
if (isAssignmentGraded)
{
gradingPoints.Add(slkUser.UserId, points);
gradingComments.Add(slkUser.UserId, instructorComments);
}
}
else
{
//user not found on slk site, log
logText += String.Format(TextResources.UserNotRegisteredWithSLKSite, user.UserLoginWithDomain, assignmentSiteUrl, assignmentId) + Environment.NewLine;
}
}
else
{
//user assignments will not be transferred as user is marked "not for transfer"
logText += String.Format(TextResources.UserNotForTransfer, user.UserLoginWithDomain) + Environment.NewLine;
}
}
else
{
//user is not found in xml file, log
logText += String.Format(TextResources.UserNotFoundInXMLFile, userId, assignmentSiteUrl, SiteBuilder.Default.ClassStructureXML, assignmentId) + Environment.NewLine;
}
}
//create the assignment
AssignmentItemIdentifier assignmentIdSLK = slkStore.CreateAssignment(assignmentWeb, packageLocation, 0, SlkRole.Instructor, properties);
//transfer the grading results for the assignments
AssignmentProperties basicAssignmentProperties;
ReadOnlyCollection <GradingProperties> gradingPropertiesList =
slkStore.GetGradingProperties(assignmentIdSLK, out basicAssignmentProperties);
for (int learnerIndex = 0; learnerIndex < gradingPropertiesList.Count; learnerIndex++)
{
// set <gradingProperties> to information about this learner assignment
GradingProperties gradingProperties = gradingPropertiesList[learnerIndex];
if (gradingPoints.ContainsKey(gradingProperties.LearnerId))
{
//assignment has been graded, transfer grade and comment to SLK
gradingProperties.Status = LearnerAssignmentState.Final;
gradingProperties.FinalPoints = (float)gradingPoints[gradingProperties.LearnerId];
gradingProperties.InstructorComments = gradingComments[gradingProperties.LearnerId].ToString();
}
}
//this call will not save the grade, but it will set the correct state and
//put the teacher's comment.
logText += slkStore.SetGradingProperties(assignmentIdSLK, gradingPropertiesList) + Environment.NewLine;
//calling the second time to save grades
for (int learnerIndex = 0; learnerIndex < gradingPropertiesList.Count; learnerIndex++)
{
gradingPropertiesList[learnerIndex].Status = null;
}
logText += slkStore.SetGradingProperties(assignmentIdSLK, gradingPropertiesList) + Environment.NewLine;
logText += String.Format(TextResources.TransferredAssignment, assignmentId.ToString(), assignmentIdSLK.GetKey().ToString()) + Environment.NewLine;
}
}
catch (System.Exception ex)
{
//exception when transferring an assignment
logText += TextResources.AnError + ex.Message + Environment.NewLine;
}
}
}