public bool PostActivityMessage(string message, int courseId, string authToken)
{
//validate the user
if (!IsValidKey(authToken))
{
return(false);
}
//because "currentUser" was pulled from a previous DB context, we need
//to repull using the current context
int profileId = activeSessions[authToken].UserProfile.ID;
UserProfile currentUser = (from u in db.UserProfiles
where u.ID == profileId
select u).FirstOrDefault();
if (currentUser == null)
{
return(false);
}
//find the course
Course course = (from c in db.Courses
where c.ID == courseId
select c).FirstOrDefault();
if (course == null)
{
return(false);
}
CourseUser courseUser = (from cu in db.CourseUsers
where cu.UserProfileID == currentUser.ID
&&
cu.AbstractCourseID == course.ID
select cu
).FirstOrDefault();
if (courseUser == null)
{
return(false);
}
//use the data provided to create a new dashboard post
DashboardPost newDp = new DashboardPost();
newDp.Content = message;
newDp.Posted = DateTime.UtcNow;
newDp.CourseUser = courseUser;
//add & save
db.DashboardPosts.Add(newDp);
db.SaveChanges();
//return success
return(true);
}
/// <summary>
/// Removes the provided user from the active course
/// </summary>
/// <param name="user"></param>
public void RemoveUserFromCourse(UserProfile user)
{
var cu = (from c in db.CourseUsers
where c.AbstractCourseID == ActiveCourseUser.AbstractCourseID &&
c.UserProfileID == user.ID
select c).FirstOrDefault();
if (cu != null)
{
db.CourseUsers.Remove(cu);
}
db.SaveChanges();
var teamsWithNoMembers = (from at in db.AssignmentTeams
where at.Team.TeamMembers.Count == 0
select at).ToList();
foreach (var team in teamsWithNoMembers)
{
db.AssignmentTeams.Remove(team);
}
db.SaveChanges();
}
/// <summary>
/// Sends a document that resides on OSBLE to the Annotate server.
/// If the document already exists on annotate's servers, this function will not resubmit
/// unless forceUpload is set to TRUE.
/// </summary>
/// <param name="assignmentID">The assignment that the document belongs to</param>
/// <param name="authorTeamID">The document's author</param>
/// <param name="forceUpload">If set to TRUE, will force a document upload to annotate's servers</param>
/// <returns></returns>
public AnnotateResult UploadDocument(int assignmentID, int authorTeamID, bool forceUpload = false)
{
bool needsUpload = true;
AnnotateResult result = new AnnotateResult();
result.Result = ResultCode.ERROR;
//By default, we only upload documents to annotate if they haven't been uploaded
//already. This can be overridden by setting forceUpload = true.
if (forceUpload == false)
{
//check for existing document
using (OSBLEContext db = new OSBLEContext())
{
string docString = GetAnnotateDocumentName(assignmentID, authorTeamID);
AnnotateDocumentReference code = (from c in db.AnnotateDocumentReferences
where c.OsbleDocumentCode.CompareTo(docString) == 0
select c
).FirstOrDefault();
if (code == null)
{
needsUpload = true;
}
else
{
needsUpload = false;
result.Result = ResultCode.OK;
result.DocumentDate = code.AnnotateDocumentDate;
result.DocumentCode = code.AnnotateDocumentCode;
}
}
}
if (needsUpload)
{
long epoch = (int)(DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0)).TotalSeconds;
WebClient client = new WebClient();
string sendResult = "";
//Submit document to annotate
#if DEBUG
//string documentUrl = "http://osble.org/content/icershort.pdf";
string documentUrl = "https://plus.osble.org/FileHandler/GetAnnotateDocument?assignmentID={0}&authorTeamID={1}&apiKey={2}";
documentUrl = string.Format(documentUrl, assignmentID, authorTeamID, ApiKey);
#else
string documentUrl = "https://plus.osble.org/FileHandler/GetAnnotateDocument?assignmentID={0}&authorTeamID={1}&apiKey={2}";
documentUrl = string.Format(documentUrl, assignmentID, authorTeamID, ApiKey);
#endif
string apiKey = GenerateAnnotateKey("uploadDocument.php", ApiUser, epoch);
//TODO: this was changed when helplab.org went down.
//string uploadString = "http://helplab.org/annotate/php/uploadDocument.php?" +
string uploadString = AnnotateURL + "/annotate/php/uploadDocument.php?" +
"api-user={0}" + //Annotate admin user name (see web config)
"&api-requesttime={1}" + //UNIX timestamp
"&api-annotateuser={2}" + //the current user (reviewer)
"&api-auth={3}" + //Annotate admin auth key
"&url={4}"; //URL of the document to upload
uploadString = string.Format(uploadString,
ApiUser,
epoch,
ApiUser,
apiKey,
HttpUtility.UrlEncode(documentUrl)
);
try
{
sendResult = client.DownloadString(uploadString);
//WriteLog("UploadDocument: " + sendResult);
}
catch (Exception ex)
{
result.RawMessage = ex.Message;
result.Result = ResultCode.ERROR;
return(result);
}
string documentCode = "";
string documentDate = "";
result.RawMessage = sendResult;
if (sendResult.Substring(0, 2) == "OK")
{
result.Result = ResultCode.OK;
string[] pieces = sendResult.Split(' ');
documentDate = pieces[1];
documentCode = pieces[2];
result.DocumentCode = documentCode;
result.DocumentDate = documentDate;
//add DB entry into OSBLE so that we know something's been sent
using (OSBLEContext db = new OSBLEContext())
{
string docString = GetAnnotateDocumentName(assignmentID, authorTeamID);
AnnotateDocumentReference code = (from c in db.AnnotateDocumentReferences
where c.OsbleDocumentCode.CompareTo(docString) == 0
select c
).FirstOrDefault();
if (code == null)
{
code = new AnnotateDocumentReference();
db.AnnotateDocumentReferences.Add(code);
}
else
{
db.Entry(code).State = EntityState.Modified;
}
code.AnnotateDocumentCode = result.DocumentCode;
code.AnnotateDocumentDate = result.DocumentDate;
code.OsbleDocumentCode = docString;
db.SaveChanges();
}
}
}
return(result);
}