public void ProcessRequest(HttpContext context)
{
lms_Entities db = new ClientDBEntities();
string command = context.Request.Form["command"]?.ToUpper();
string version = context.Request.Form["version"];
string[] session = context.Request.Form["session_id"].ToString().Split('|');
int userId = int.Parse(session[0]);
int courseId = int.Parse(session[1]);
int assignmentId = int.Parse(session[2]);
const string CRLF = "\r\n";
string str = "";
switch (command)
{
case "GETPARAM":
db.Course_ScormValueSet(userId, assignmentId, courseId, "SET-STARTDATE", null); //this forces a set of "startDate" if necessary
Course_StartupDefaults_Result initInfo = db.Course_StartupDefaults(userId, assignmentId, courseId).FirstOrDefault();
str = "error=0" + CRLF
+ "error_text=successful" + CRLF
+ "version=" + version + CRLF
+ "aicc_data=[core]" + CRLF
+ "Student_ID=" + userId + CRLF
+ "Student_Name=" + initInfo.student_name + CRLF
+ "Output_file=" + CRLF
+ "Credit=c" + CRLF
+ "Lesson_Location=" + initInfo.lesson_location + CRLF
+ "Lesson_Status=" + initInfo.lesson_status + CRLF
+ "path=" + CRLF
+ "Score=" + initInfo.maxScore + CRLF
+ "Time=00:00:00" + CRLF
+ "[Core_Lesson]" + CRLF
+ initInfo.suspend_data; //+ initInfo.totalTimeUsage
Log.Info("Aicc GETPARAM return:" + str);
break;
case "PUTPARAM":
AICCDataReader aiccData = new AICCDataReader(context.Request.Form["aicc_data"]); //data looks like this: //"[core]\r\nlesson_status=i\r\nlesson_location=m01_s01_t01~m01_s01_t01\r\ntime=00:00:03\r\n"
string lesson_location = aiccData.GetKeyValue("lesson_location");
string lesson_status = aiccData.GetKeyValue("lesson_status");
string score = aiccData.GetKeyValue("score");
string suspend_data = aiccData.GetKeyValue("[core_lesson]");
//take only the first 99 hours of session time.. or SQL db will cry
string sessionTime = aiccData.GetKeyValue("time");
string[] tmp = sessionTime.Split(':');
if (tmp[0].Length == 4)
{
tmp[0] = tmp[0].Substring(2);
sessionTime = string.Join(":", tmp);
}
db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.CORE.LESSON_STATUS", lesson_status);
db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.CORE.LESSON_LOCATION", lesson_location);
if (score.Length > 0)
{
db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.CORE.SCORE.RAW", score);
}
db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.CORE.SESSION_TIME", sessionTime);
db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.SUSPEND_DATA", suspend_data);
//'build response
str = "error=0" + CRLF
+ "error_text=Successful" + CRLF
+ "version=" + version;
break;
case "PUTINTERACTIONS":
//IGNORED... send "sure, ok" messsage
str = "error=0" + CRLF
+ "error_text=Successful" + CRLF
+ "version=" + version;
break;
case "EXITAU":
//IGNORED... send "sure, ok" messsage
str = "error=0" + CRLF
+ "error_text=Successful" + CRLF
+ "version=" + version;
break;
default:
Log.Error("AICC command not implemented:" + command, false);
break;
}
context.Response.ContentType = "text/plain";
context.Response.Cache.SetCacheability(HttpCacheability.NoCache); //sets: Cache-Control: no-cache, Expires: -1, Pragma: no-cache
context.Response.Write(str);
context.Response.End();
}
public void ProcessRequest(HttpContext context)
{
int?assignmentId = Utilities.TryToParseAsInt(context.Request.QueryString["aid"]);
int?courseId = Utilities.TryToParseAsInt(context.Request.QueryString["cid"]);
int userId;
//set UserID coming from course primarily
if (context.Request.QueryString["uid"] == null)
{
userId = LmsUser.UserId;
}
else
{
userId = (int)Utilities.TryToParseAsInt(context.Request.QueryString["uid"]);
}
context.Response.CacheControl = "no-cache"; // must never be cached
context.Response.ContentType = "application/json; charset=utf-8"; //set json as default response
lms_Entities db = new ClientDBEntities();
//call functions
switch (context.Request.QueryString["m"].ToUpper())
{
case "GET_COURSE_STATS":
//-----------------------------------------------
// displays data in curriculum page - per course
//-----------------------------------------------
if (userId == 0)
{
Log.Error("User:UNKNOWN SESSION called GET_COURSE_STATS function");
context.Response.Write("NO_SESSION");
}
else
{
Course_BasicInfo_Result res = db.Course_BasicInfo(assignmentId, courseId, userId).FirstOrDefault();
context.Response.Write(
"{" +
@"""startDate"":" + (res.startDate == null ? "null" : @"""" + String.Format("{0:d}", res.startDate) + @"""") + "," +
@"""completedDate"":" + (res.completedDate == null ? "null" : "\"" + String.Format("{0:d}", res.completedDate) + @"""") + "," +
@"""maxScore"":" + (res.maxScore == null ? "null" : res.maxScore.ToString()) +
"}"
);
}
break;
case "SCORM_COURSE_INITIAL_DEFAULTS":
//load all initial scorm values and send to scorm.js manager
Log.Info("User " + userId + " launched course:" + courseId + ", assignmentId:" + assignmentId);
db.Course_ScormValueSet(userId, assignmentId, courseId, "SET-STARTDATE", null); //this forces a set of "startDate" if necessary
Course_StartupDefaults_Result initInfo = db.Course_StartupDefaults(userId, assignmentId, courseId).FirstOrDefault();
string suspend_data = initInfo.suspend_data?.Replace("\"", "\\\""); //encode double quotes
string total_time = initInfo.totalTimeUsage == null ? "0000:00:00.00" : String.Format("00{0:%hh}:{0:%mm}:{0:%s}", initInfo.totalTimeUsage);
context.Response.Write(
@"{""cmi"":{" +
@"""launch_data"":""""," +
@"""interactions"": {""_count"": 0}," +
@"""student_data"": {""mastery_score"": """"}," +
@"""core"":{" +
@"""total_time"":""" + total_time + @"""," +
@"""student_id"":" + userId + "," +
@"""lesson_mode"":""normal""," +
@"""lesson_status"":""" + initInfo.lesson_status + @"""," +
@"""lesson_location"":""" + initInfo.lesson_location + @"""," +
@"""student_name"":""" + initInfo.student_name + @"""," +
@"""score"": {" +
@"""raw"":" + (initInfo.maxScore == null ? @"""""" : initInfo.maxScore.ToString()) + "}" +
@"}," +
@"""suspend_data"":""" + suspend_data + @"""" +
"}" +
"}"
);
break;
case "KEEP_SESSION_ALIVE":
context.Response.ContentType = "text/plain"; //override to plain text
context.Response.Write("<html>");
context.Response.Write("<head>");
context.Response.Write("<meta http-equiv=\"refresh\" content=\"" + context.Request.QueryString["secs"] + "\">"); //every 5 minutes (300 seconds)
context.Response.Write("<meta http-equiv=\"pragma\" content=\"no-cache\">");
context.Response.Write("<meta http-equiv=\"expires\" content=\"0\">");
context.Response.Write("</head>");
context.Response.Write("<body></body>");
context.Response.Write("</html>");
break;
case "CMI.INTERACTIONS.0.STUDENT_RESPONSE":
//THIS MESSAGE IGNORED IN THIS PARTICULAR LMS INSTANCE
context.Response.Write("{\"result\":true}");
break;
case "CMI.CORE.LESSON_STATUS":
Log.Info("User " + userId + " status set to:\"" + context.Request.Form["data"] + "\", course:" + courseId + ", assignmentId:" + assignmentId);
if (context.Request.QueryString["dir"] == "set")
{
//allowed values:passed, completed, failed, incomplete, browsed, not attempted
int?affected = db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.CORE.LESSON_STATUS", context.Request.Form["data"]).FirstOrDefault();
context.Response.Write(@"{""result"":" + (affected == 1 ? "true" : "false") + "}");
}
else
{
context.Response.Write("{\"result\":false}");
}
break;
case "CMI.CORE.LESSON_LOCATION":
if (context.Request.QueryString["dir"] == "set")
{
int?affected = db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.CORE.LESSON_LOCATION", context.Request.Form["data"]).FirstOrDefault();
context.Response.Write(@"{""result"":" + (affected == 1 ? "true" : "false") + "}");
}
else
{
context.Response.Write("{\"result\":false}");
}
break;
case "CMI.SUSPEND_DATA":
if (context.Request.QueryString["dir"] == "set")
{
int?affected = db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.SUSPEND_DATA", context.Request.Form["data"]).FirstOrDefault();
context.Response.Write(@"{""result"":" + (affected == 1 ? "true" : "false") + "}");
}
else
{
context.Response.Write("{\"result\":false}");
}
break;
case "CMI.CORE.SESSION_TIME":
if (context.Request.QueryString["dir"] == "set")
{
string session_time = context.Request.Form["data"];
//NOTE: session time comes in a format like "0000:00:02.75"... 4 digits for hour
if (session_time.Length == 0)
{
session_time = null;
}
else
{
//take only the first 99 hours
string[] tmp = session_time.Split(':');
if (tmp[0].Length == 4)
{
tmp[0] = tmp[0].Substring(2);
session_time = string.Join(":", tmp);
}
}
int?affected = db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.CORE.SESSION_TIME", session_time).FirstOrDefault();
context.Response.Write(@"{""result"":" + (affected == 1 ? "true" : "false") + "}");
}
else
{
context.Response.Write("{\"result\": false}");
}
break;
case "CMI.CORE.SCORE.RAW":
Log.Info("Score received:\"" + context.Request.Form["data"] + "\" for course id:" + courseId + ", userId:" + userId + ", assignmentId:" + assignmentId);
if (context.Request.QueryString["dir"] == "set")
{
double?score = Utilities.TryToParseAsDouble(context.Request.Form["data"]);
if (score == null)
{
Log.Info("Score ignored.");
context.Response.Write("{\"result\": true}"); //just to keep the course happy
}
else
{
int?affected = db.Course_ScormValueSet(userId, assignmentId, courseId, "CMI.CORE.SCORE.RAW", context.Request.Form["data"]).FirstOrDefault();
Log.Info("Score saved:\"" + context.Request.Form["data"] + "\" for course id:" + courseId + ", userId:" + userId + ", assignmentId:" + assignmentId + ", records changed=" + affected);
context.Response.Write(@"{""result"":" + (affected == 1 ? "true" : "false") + "}");
}
}
else
{
context.Response.Write("{\"result\":false}");
}
break;
case "CMI.CORE.EXIT":
context.Response.Write("{\"result\": true}");
break;
case "COURSE_LAUNCH_PARAMS":
Course crs = db.Courses.Where(c => c.courseId == courseId).FirstOrDefault();
context.Response.Write(
"{" +
"\"title\":\"" + crs.title + "\"," +
"\"url\":\"" + crs.url + "\"," +
"\"type\":" + crs.type + "," +
"\"width\":" + (crs.browserWidth == null? "null": crs.browserWidth.ToString()) + "," +
"\"height\":" + (crs.browserHeight == null ? "null" : crs.browserHeight.ToString()) +
"}"
);
break;
default:
Log.Info("User:"******" unknown message \"" + context.Request.QueryString["m"] + "\", course:" + courseId + ", assignmentId:" + assignmentId);
context.Response.Write("{\"result\":false}");
break;
}
}
