// AddGroupMemberHandler is a http handler adding an additional member to a active group.
func AddGroupMemberHandler(w http.ResponseWriter, r *http.Request) {
view := AddGroupMemberView{}
view.Error = true
enc := json.NewEncoder(w)
// Checks if the user is signed in and a teacher.
member, err := checkTeacherApproval(w, r, true)
if err != nil {
err = enc.Encode(ErrSignIn)
return
}
orgname := r.FormValue("course")
if orgname == "" || !git.HasOrganization(orgname) {
err = enc.Encode(ErrUnknownCourse)
return
}
groupid, err := strconv.Atoi(r.FormValue("groupid"))
if err != nil {
view.ErrorMsg = err.Error()
err = enc.Encode(view)
return
}
if !git.HasGroup(groupid) {
err = enc.Encode(ErrUnknownGroup)
return
}
org, err := git.NewOrganization(orgname, false)
if err != nil {
view.ErrorMsg = err.Error()
err = enc.Encode(view)
return
}
defer func() {
err := org.Save()
if err != nil {
org.Unlock()
log.Println(err)
}
}()
if !org.IsTeacher(member) {
err = enc.Encode(ErrNotTeacher)
return
}
group, err := git.NewGroup(orgname, groupid, false)
if err != nil {
view.ErrorMsg = err.Error()
err = enc.Encode(view)
return
}
defer func() {
err := group.Save()
if err != nil {
group.Unlock()
log.Println(err)
}
}()
if group.TeamID == 0 {
teams, err := org.ListTeams()
if err != nil {
view.ErrorMsg = err.Error()
err = enc.Encode(view)
return
}
if team, ok := teams[git.GroupRepoPrefix+strconv.Itoa(groupid)]; ok {
group.TeamID = team.ID
} else {
view.ErrorMsg = "Error finding team on GitHub."
err = enc.Encode(view)
return
}
}
r.ParseForm()
members := r.PostForm["member"]
for _, username := range members {
if username == "" || !git.HasMember(username) {
continue
}
group.AddMember(username)
org.AddMemberToTeam(group.TeamID, username)
delete(org.PendingRandomGroup, username)
}
group.Activate()
view.Added = true
view.Error = false
enc.Encode(view)
}
// ShowResultHandler is a http handler for showing a page detailing
// lab resutls for a single user or group.
func ShowResultHandler(w http.ResponseWriter, r *http.Request) {
// Checks if the user is signed in and a teacher.
member, err := checkTeacherApproval(w, r, true)
if err != nil {
return
}
// Gets the org and check if valid
orgname := ""
if path := strings.Split(r.URL.Path, "/"); len(path) == 4 {
if !git.HasOrganization(path[3]) {
http.Redirect(w, r, pages.HOMEPAGE, 307)
return
}
orgname = path[3]
} else {
http.Redirect(w, r, pages.HOMEPAGE, 307)
return
}
username := r.FormValue("user")
if username == "" {
http.Redirect(w, r, pages.HOMEPAGE, 307)
return
}
if !git.HasOrganization(orgname) {
http.Redirect(w, r, pages.HOMEPAGE, 307)
return
}
org, err := git.NewOrganization(orgname, true)
if err != nil {
http.Error(w, err.Error(), 500)
}
isgroup := false
groupid := -1
labnum := 0
if !git.HasMember(username) {
groupnum, err := strconv.Atoi(username[len("group"):])
if err != nil {
http.Redirect(w, r, pages.HOMEPAGE, 307)
return
}
if git.HasGroup(groupnum) {
isgroup = true
group, err := git.NewGroup(org.Name, groupnum, true)
if err != nil {
http.Redirect(w, r, pages.HOMEPAGE, 307)
return
}
groupid = group.ID
if group.CurrentLabNum >= org.GroupAssignments {
labnum = org.GroupAssignments
} else {
labnum = group.CurrentLabNum
}
} else {
http.Redirect(w, r, pages.HOMEPAGE, 307)
return
}
} else {
user, err := git.NewMemberFromUsername(username, true)
if err != nil {
http.Error(w, err.Error(), 500)
}
nr := user.Courses[org.Name].CurrentLabNum
if nr >= org.IndividualAssignments {
labnum = org.IndividualAssignments
} else {
labnum = nr
}
}
view := ShowResultView{
StdTemplate: StdTemplate{
Member: member,
},
Org: org,
Username: username,
Labnum: labnum,
IsGroup: isgroup,
GroupID: groupid,
}
execTemplate("teacherresultpage.html", w, view)
}
// RemovePendingGroupHandler is used to remove a group.
func RemovePendingGroupHandler(w http.ResponseWriter, r *http.Request) {
// Checks if the user is signed in and a teacher.
member, err := checkTeacherApproval(w, r, true)
if err != nil {
http.Redirect(w, r, "/", 307)
log.Println(err)
return
}
groupid, err := strconv.Atoi(r.FormValue("groupid"))
if err != nil {
http.Error(w, "Group ID is not a number: "+err.Error(), 404)
return
}
course := r.FormValue("course")
if !git.HasOrganization(course) {
http.Error(w, "Unknown course.", 404)
return
}
org, err := git.NewOrganization(course, false)
if err != nil {
http.Error(w, "Unknown course.", 404)
return
}
defer func() {
err := org.Save()
if err != nil {
org.Unlock()
log.Println(err)
}
}()
if !org.IsTeacher(member) {
http.Error(w, "Is not a teacher or assistant for this course.", 404)
return
}
if !git.HasGroup(groupid) {
groupname := git.GroupRepoPrefix + strconv.Itoa(groupid)
if _, ok := org.Groups[groupname]; ok {
delete(org.Groups, groupname)
return
}
http.Error(w, "Unknown group.", 404)
return
}
if _, ok := org.PendingGroup[groupid]; ok {
delete(org.PendingGroup, groupid)
}
groupname := git.GroupRepoPrefix + strconv.Itoa(groupid)
if _, ok := org.Groups[groupname]; ok {
delete(org.Groups, groupname)
}
group, err := git.NewGroup(org.Name, groupid, false)
if err != nil {
http.Error(w, "Could not get the group: "+err.Error(), 404)
return
}
group.Delete()
}