//File saving routines
func saveFile(header *multipart.FileHeader, r io.Reader) (string, error) {
if client, err := storage.GetNewStorageClient(); err == nil {
h := public.NewHashString()
objName := storage.PathJoin(storage.APPLICATIONS_FOLDER_NAME, h)
//Determine the extension
var ext string = ""
if header != nil {
if segs := strings.Split(header.Filename, "."); len(segs) > 1 {
ext = "." + segs[len(segs)-1]
objName = (objName + ext)
}
}
obj := client.GetDefaultBucket().Object(objName)
objWriter := obj.NewWriter(client.Ctx)
_, err = io.Copy(objWriter, r)
objWriter.Close()
if err == nil {
if attr, e := obj.Attrs(client.Ctx); attr != nil && e == nil {
if mimeStr := mime.TypeByExtension(ext); len(mimeStr) > 0 {
attr.ContentType = mimeStr
obj.Update(client.Ctx, *attr)
}
}
return objName, nil
} else {
return "", err
}
} else {
return "", err
}
}
func handleViewStagingRecomms(resp http.ResponseWriter, req *http.Request) {
user_id, _ := public.GetSessionUserId(req)
stagingDb := public.GetNewStagingDatabase()
defer stagingDb.Session.Close()
recomms := stagingDb.C(public.APPLICATION_DB_RECOMM_COLLECTION)
q := recomms.Find(bson.M{
"recommender": user_id,
})
var result []public.RecommView
recomm_item := db.RecommEntity{}
it := q.Iter()
for it.Next(&recomm_item) {
signed_url := ""
if client, err := storage.GetNewStorageClient(); err == nil {
expireTime := time.Now().Add(time.Duration(1) * time.Hour) //an hour
signed_url, _ = client.GetNewSignedURL(string(recomm_item.Attachment), expireTime)
}
result = append(result, public.RecommView{
Hash: recomm_item.Hash,
ApplyUser: recomm_item.ApplyUser,
Topic: recomm_item.Topic,
LastModified: recomm_item.LastModified,
Content: recomm_item.Content,
Attachment: signed_url,
})
}
public.ResponseOkAsJson(resp, &result)
}
func handleViewRecomm(resp http.ResponseWriter, req *http.Request) {
user_id, _ := public.GetSessionUserId(req)
user_perm, _ := public.GetSessionUserPermission(req)
vars := mux.Vars(req)
hash_str := vars["hash"]
appDb := public.GetNewApplicationDatabase()
defer appDb.Session.Close()
recomm := appDb.C(public.APPLICATION_DB_RECOMM_COLLECTION)
q := recomm.Find(bson.M{
"hash": hash_str,
})
recomm_result := db.RecommEntity{}
if e := q.One(&recomm_result); e != nil {
public.ResponseStatusAsJson(resp, 404, &public.SimpleResult{
Message: "No such recomm entity",
})
return
}
// Permission check
if recomm_result.Recommender != user_id && user_perm != public.USER_PERMISSION_GM {
public.ResponseStatusAsJson(resp, 403, nil)
return
}
signed_url := ""
if client, err := storage.GetNewStorageClient(); err == nil {
expireTime := time.Now().Add(time.Duration(1) * time.Hour) //an hour
signed_url, _ = client.GetNewSignedURL(string(recomm_result.Attachment), expireTime)
}
public.ResponseOkAsJson(resp, &public.RecommView{
Hash: recomm_result.Hash,
ApplyUser: recomm_result.ApplyUser,
Topic: recomm_result.Topic,
LastModified: recomm_result.LastModified,
Content: recomm_result.Content,
Attachment: signed_url,
})
}
func handleReviewerProfile(resp http.ResponseWriter, req *http.Request) {
userId, _ := public.GetSessionReviewerId(req)
reviewerDb := public.GetNewReviewerDatabase()
defer reviewerDb.Session.Close()
profile := reviewerDb.C(REVIEWER_DB_PROFILE_COLLECTION)
q := profile.FindId(userId)
if c, err := q.Count(); c == 0 || err != nil {
r := public.SimpleResult{
Message: "Error",
Description: "User Not Found",
}
public.ResponseStatusAsJson(resp, 500, &r)
} else {
reviewer := db.Reviewer{}
q.One(&reviewer)
r := public.ReviewerProfile{
Email: reviewer.BaseProfile.Email,
Username: reviewer.BaseProfile.Username,
FormalId: reviewer.BaseProfile.FormalId,
Topics: reviewer.Topics,
Permissions: reviewer.Permissions,
}
if client, err := storage.GetNewStorageClient(); err == nil && len(reviewer.BaseProfile.Thumbnail) > 0 {
defer client.Close()
expire := time.Now().Add(time.Duration(12) * time.Hour)
if r.Thumbnail, err = client.GetNewSignedURL(reviewer.BaseProfile.Thumbnail, expire); err != nil {
r.Thumbnail = ""
}
}
public.ResponseOkAsJson(resp, &r)
}
}
func handleReviewerRecommView(resp http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
hashStr := vars["recommHash"]
appDb := public.GetNewApplicationDatabase()
defer appDb.Session.Close()
recomm := appDb.C(public.APPLICATION_DB_RECOMM_COLLECTION)
q := recomm.Find(bson.M{
"hash": hashStr,
})
recommInstance := db.Recomm{}
if err := q.One(&recommInstance); err != nil {
public.ResponseStatusAsJson(resp, 404, &public.SimpleResult{
Message: "Error",
Description: "Hash not found",
})
return
}
recommResult := reviewerRecommResult{
Content: recommInstance.Content,
}
if len(recommInstance.Attachment) > 0 {
//Create temp url
if client, err := storage.GetNewStorageClient(); err == nil {
expireTime := time.Now().Add(time.Duration(1) * time.Hour) //an hour
if obj, e := client.GetNewSignedURL(recommInstance.Attachment, expireTime); e == nil {
recommResult.AttachmentUrl = obj
} else {
public.LogE.Println("Get object error: " + e.Error())
}
}
}
public.ResponseOkAsJson(resp, &recommResult)
}
func (this *exportApplication) fromDbApplication(form *db.ApplicationForm, isReviewer bool) {
this.Timestamp = form.Timestamp
this.Name = form.Name
this.School = form.School
this.Department = form.Department
this.SchoolGrade = form.SchoolGrade
this.Birthday = form.Birthday
this.FormalId = form.FormalId
this.Phone = form.Phone
this.Email = form.Email
this.Address = form.Address
this.Topic = form.Topic
this.Teacher = form.Teacher
this.ResearchArea = form.ResearchArea
this.ClassHistories = form.ClassHistories
this.RelatedSkills = form.RelatedSkills
this.AcademicGrade = form.AcademicGrade
this.LangAbilities = form.LangAbilities
//Hash
this.Hash = public.NewSecureHashString()
//Extras
//Transform file id to url
if client, err := storage.GetNewStorageClient(); err == nil {
expireTime := time.Now().Add(time.Duration(1) * time.Hour) //an hour
if obj, e := client.GetNewSignedURL(form.ResearchPlan, expireTime); e == nil {
this.ResearchPlan = obj
} else {
public.LogE.Println("Get object error: " + e.Error())
}
if obj, e := client.GetNewSignedURL(form.Transcript, expireTime); e == nil {
this.Transcript = obj
} else {
public.LogE.Println("Get object error: " + e.Error())
}
if len(form.Others) > 0 {
if obj, e := client.GetNewSignedURL(form.Others, expireTime); e == nil {
this.Others = obj
} else {
public.LogE.Println("Get object error: " + e.Error())
}
}
} else {
public.LogE.Printf("Error getting storage client")
}
appDb := public.GetNewApplicationDatabase()
defer appDb.Session.Close()
recomm := appDb.C(public.APPLICATION_DB_RECOMM_COLLECTION)
var recommList []public.RecommResult
for _, h := range form.Recommendations {
//Transform recommendation from hash to structures
q := recomm.Find(bson.M{
"hash": h,
})
if n, e := q.Count(); e == nil && n > 0 {
r := db.Recomm{}
if e := q.One(&r); e == nil {
r := public.RecommResult{
Recommender: r.Recommender,
ApplyUser: r.ApplyUser,
Done: r.Submitted,
}
if isReviewer {
r.Hash = h
} else {
r.Hash = ""
}
recommList = append(recommList, r)
}
}
}
this.Recommendations = recommList
}
func handleReviewRegister(resp http.ResponseWriter, req *http.Request) {
email := public.EmailFilter(req.FormValue("email"))
username := req.FormValue("username")
formalId := req.FormValue("formalId")
password := req.FormValue("password")
//Verify values first
var errorFields []string
if len(email) <= 0 {
errorFields = append(errorFields, "Email")
}
if len(username) <= 0 {
errorFields = append(errorFields, "Username")
}
if len(password) <= 0 {
errorFields = append(errorFields, "Password")
}
if len(formalId) != 10 {
errorFields = append(errorFields, "FormalId")
} else {
if match, _ := regexp.MatchString("[A-Z][12][0-9]{8}", formalId); match {
if !public.FormalIdVerifier(formalId) {
errorFields = append(errorFields, "FormalId")
}
} else {
errorFields = append(errorFields, "FormalId")
}
}
if len(errorFields) > 0 {
r := public.SimpleResult{
Message: "Error",
Description: "Wrong Format: " + strings.Join(errorFields, ","),
}
public.ResponseStatusAsJson(resp, 400, &r)
} else {
//Get thumbnail if exist
var thumb multipart.File = nil
var thumbHeader *multipart.FileHeader = nil
if f, h, err := req.FormFile("thumbnail"); err == nil && f != nil {
thumb = f
thumbHeader = h
}
reviewerDb := public.GetNewReviewerDatabase()
defer reviewerDb.Session.Close()
profile := reviewerDb.C(REVIEWER_DB_PROFILE_COLLECTION)
q := profile.Find(bson.M{"baseprofile.email": email})
if cnt, err := q.Count(); cnt != 0 || err != nil {
if err != nil {
r := public.SimpleResult{
Message: "Error",
Description: err.Error(),
}
public.ResponseStatusAsJson(resp, 500, &r)
} else {
//User exist
r := public.SimpleResult{
Message: "Error",
Description: "User Exists",
}
public.ResponseStatusAsJson(resp, 400, &r)
}
} else {
baseUser := db.User{
Email: email,
Username: username,
FormalId: formalId,
}
hash, _ := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
baseUser.AuthInfo = db.UserAuth{
BcryptCost: bcrypt.DefaultCost,
BcyptHash: string(hash),
}
//Store thumbnail
if thumb != nil {
defer thumb.Close()
if client, err := storage.GetNewStorageClient(); err == nil {
h := public.NewHashString()
objName := storage.PathJoin(storage.THUMBNAILS_FOLDER_NAME, h)
//Determine the extension
var ext string = ""
if thumbHeader != nil {
if segs := strings.Split(thumbHeader.Filename, "."); len(segs) > 1 {
ext = "." + segs[len(segs)-1]
objName = (objName + ext)
}
}
obj := client.GetDefaultBucket().Object(objName)
if attr, _ := obj.Attrs(client.Ctx); attr != nil {
if mimeStr := mime.TypeByExtension(ext); len(mimeStr) > 0 {
attr.ContentType = mimeStr
}
}
objWriter := obj.NewWriter(client.Ctx)
defer objWriter.Close()
_, err = io.Copy(objWriter, thumb)
if err == nil {
baseUser.Thumbnail = objName
}
}
}
newUser := db.Reviewer{
BaseProfile: baseUser,
}
if err := profile.Insert(&newUser); err != nil {
r := public.SimpleResult{
Message: "Register Failed",
Description: err.Error(),
}
public.ResponseStatusAsJson(resp, 400, &r)
} else {
if err := public.SetReviewerSessionValue(req, resp, public.REVIEWER_ID_SESSION_KEY, newUser.Id.Hex()); err != nil {
public.LogE.Printf("Error setting session user id: %s\n", err.Error())
}
r := public.SimpleResult{
Message: "Register Successed",
Description: email,
}
public.ResponseOkAsJson(resp, &r)
}
}
}
}
