func slaveHandler(s *websocket.Conn, sessionID int, dbStore *Store, redisAddr string) {
xlog.Debugf("entering SlaveHandler")
c, err := redis.Dial("tcp", redisAddr)
if err != nil {
xlog.Errorf("redis.Dial failed: %v", err)
return
}
defer c.Close()
psc := redis.PubSubConn{Conn: c}
topic := fmt.Sprintf("session.%d", sessionID)
psc.Subscribe(topic)
defer psc.Unsubscribe(topic)
for {
switch v := psc.Receive().(type) {
case redis.Message:
StatCount("command for slave", 1)
var cmd Command
if err := json.Unmarshal(v.Data, &cmd); err != nil {
break
}
if err := websocket.JSON.Send(s, cmd); err != nil {
xlog.Errorf("slaveHandler: JSON.Send failed: %v", err)
return
}
if cmd.Cmd == "close" {
return
}
case redis.Subscription:
xlog.Debugf("mkay... redis.Subscription received: %#v", v)
}
}
}
func ConvertFileToPDF(src, target string) error {
cmd := exec.Command("unoconv", "-f", "pdf", "--stdout", src)
// cmd := exec.Command("cat", src)
f, err := os.OpenFile(target, os.O_WRONLY|os.O_CREATE, 0644)
if err != nil {
return err
}
defer f.Close()
stdout, _ := cmd.StdoutPipe()
err = cmd.Start()
if err != nil {
xlog.Errorf("running unoconv failed: %v", err)
return err
}
io.Copy(f, stdout)
err = cmd.Wait()
if err != nil {
xlog.Errorf("cmd.Wait returned error: %v", err)
return err
}
fi, _ := f.Stat()
if fi.Size() == 0 {
os.Remove(target)
xlog.Error("file resulting from conversion is empty")
return errors.New("empty file")
}
return nil
}
func (h *StartSessionHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if !VerifyXSRFToken(w, r, h.SessionStore, h.SecureCookie) {
return
}
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Debugf("Getting session failed: %v", err)
StatCount("getting session failed", 1)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
if session.Values["userID"] == nil {
http.Error(w, "authentication required", http.StatusForbidden)
return
}
StatCount("start session", 1)
data := struct {
UploadID string `json:"upload_id"`
}{}
if err := json.NewDecoder(r.Body).Decode(&data); err != nil {
xlog.Errorf("Decoding POST body failed: %v", err)
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
uploadEntry, err := h.DBStore.GetUploadByPublicID(data.UploadID, session.Values["userID"].(int))
if err != nil {
xlog.Errorf("Querying upload %s failed: %v", data.UploadID, err)
http.Error(w, err.Error(), http.StatusNotFound)
return
}
id := generateID()
if err := h.DBStore.InsertSession(&Session{
UploadID: uploadEntry.ID,
PublicID: id,
Started: time.Now().UTC(),
}); err != nil {
xlog.Errorf("Insert failed: %v", err)
http.Error(w, "insert failed", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]string{"id": id})
}
func Connect(w http.ResponseWriter, r *http.Request, u auth.User, sessionStore sessions.Store, secureCookie *securecookie.SecureCookie, dbStore *Store) {
StatCount("connect call", 1)
session, err := sessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Errorf("Error fetching session: %v", err)
session, _ = sessionStore.New(r, SESSIONNAME)
}
if userID, ok := session.Values["userID"].(int); ok {
xlog.Debugf("Connect: already logged in (userID = %d), connecting account", userID)
// we have a valid session -> connect account to user
username := u.Provider() + ":" + u.Id()
err := dbStore.AddUser(username, userID)
if err != nil {
xlog.Errorf("Error adding user: %v", err)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
w.Header().Set("Location", "/settings")
} else {
xlog.Debugf("Connect: not logged in, actually log in user.")
// no valid session -> actually login user
username := u.Provider() + ":" + u.Id()
xlog.Debugf("Connect: username = %s", username)
userID, err := dbStore.CreateUser(username)
if err != nil {
xlog.Errorf("Error creating user: %v", err)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
xlog.Debugf("Connect: userID = %d", userID)
// set session values
session.Values["userID"] = userID
session.Values["username"] = username
session.Values["email"] = u.Email()
session.Values["name"] = u.Name()
session.Save(r, w)
// set XSRF-TOKEN for AngularJS
xsrftoken, _ := secureCookie.Encode(XSRFTOKEN, username)
http.SetCookie(w, &http.Cookie{Name: XSRFTOKEN, Value: xsrftoken, Path: "/"})
w.Header().Set("Location", "/")
}
w.WriteHeader(http.StatusFound)
}
func (h *GetUploadsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Debugf("Getting session failed: %v", err)
StatCount("getting session failed", 1)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
userID, ok := session.Values["userID"].(int)
if !ok {
http.Error(w, "no userID in session", http.StatusForbidden)
return
}
StatCount("get uploads", 1)
result, err := h.DBStore.GetUploadsForUser(userID)
if err != nil {
xlog.Errorf("Couldn't query uploads: %v", err)
http.Error(w, "query failed", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(result)
}
func (h *DisconnectHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
StatCount("disconnect call", 1)
if !VerifyXSRFToken(w, r, h.SessionStore, h.SecureCookie) {
return
}
// Only disconnect a connected user
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Errorf("Error fetching session: %v", err)
http.Error(w, "Error fetching session", 500)
return
}
token := session.Values["username"]
if token == nil {
http.Error(w, "Current user not connected", 401)
return
}
// Reset the user's session
session.Values["userID"] = nil
session.Values["username"] = nil
session.Values["name"] = nil
session.Values["email"] = nil
session.Save(r, w)
w.WriteHeader(http.StatusNoContent)
}
func main() {
xlog.SetOutput(os.Stdout)
options := struct {
Topic string `goptions:"--topic, description='Topic', obligatory"`
Channel string `goptions:"--channel, description='Channel', obligatory"`
Lookupd string `goptions:"--lookupd, description='lookupd address', obligatory"`
DSN string `goptions:"--dsn, description='MySQL DSN string', obligatory"`
}{}
goptions.ParseAndFail(&options)
sqldb, err := sql.Open("mysql", options.DSN)
if err != nil {
xlog.Fatalf("sql.Open failed: %v", err)
}
r, err := nsq.NewReader(options.Topic, options.Channel)
if err != nil {
xlog.Fatalf("Opening reader for %s/%s failed: %v", options.Topic, options.Channel, err)
}
r.AddHandler(&Converter{DB: sqldb})
if err := r.ConnectToLookupd(options.Lookupd); err != nil {
xlog.Errorf("Connecting to %s failed: %v", options.Lookupd, err)
}
select {}
}
func (h *GetSessionsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Debugf("Getting session failed: %v", err)
StatCount("getting session failed", 1)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
if session.Values["username"] == nil {
http.Error(w, "authentication required", http.StatusForbidden)
return
}
StatCount("get sessions", 1)
result, err := h.DBStore.GetSessions(session.Values["userID"].(int))
if err != nil {
xlog.Errorf("Querying sessions failed: %v", err)
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(result)
}
func (h *GetSessionInfoHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
StatCount("session info", 1)
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Debugf("Getting session failed: %v", err)
StatCount("getting session failed", 1)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
userID := 0
if session.Values["userID"] != nil {
userID = session.Values["userID"].(int)
}
publicID := r.URL.Query().Get(":id")
result, err := h.DBStore.GetSessionInfoByPublicID(publicID, userID)
if err != nil {
xlog.Errorf("Loading session information failed: %v", err)
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(result)
}
func (h *StopSessionHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if !VerifyXSRFToken(w, r, h.SessionStore, h.SecureCookie) {
return
}
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Debugf("Getting session failed: %v", err)
StatCount("getting session failed", 1)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
if session.Values["userID"] == nil {
http.Error(w, "authentication required", http.StatusForbidden)
return
}
StatCount("stop session", 1)
requestData := struct {
PublicID string `json:"session_id"`
}{}
if err := json.NewDecoder(r.Body).Decode(&requestData); err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
ownerID, sessionID, err := h.DBStore.GetOwnerForSession(requestData.PublicID)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
if ownerID != session.Values["userID"].(int) {
http.Error(w, "Unauthorized", http.StatusUnauthorized)
return
}
h.DBStore.StopSession(requestData.PublicID)
w.WriteHeader(http.StatusNoContent)
c, err := redis.Dial("tcp", h.RedisAddr)
if err != nil {
xlog.Errorf("redis.Dial failed: %v", err)
return
}
defer c.Close()
cmdJSON, _ := json.Marshal(&Command{
Cmd: "close",
SessionID: sessionID,
Timestamp: time.Now(),
})
c.Send("PUBLISH", fmt.Sprintf("session.%d", sessionID), string(cmdJSON))
c.Flush()
}
// ConvertFileToPDF attempts to convert a file to PDF.
func (store *FileUploadStore) ConvertFileToPDF(id, src, target string) error {
msg, _ := json.Marshal(map[string]string{"src_file": src, "target_file": target, "upload_id": id})
if _, _, err := store.NSQ.Publish(store.Topic, msg); err != nil {
xlog.Errorf("Queuing message to NSQ %s failed: %v", store.NSQ.Addr, err)
return err
}
return nil
}
// AddUser adds a new account (identified by username) to a user, identified by its
// userID.
func (s *Store) AddUser(username string, userID int) error {
userData := []*struct {
UserID int `meddler:"user_id"`
}{}
err := meddler.QueryAll(s.sqlDB, &userData, "SELECT user_id FROM accounts WHERE username = ? LIMIT 1", username)
if err != nil {
xlog.Errorf("AddUser: SELECT for username %s failed: %v", username, err)
return err
}
if len(userData) > 0 {
// account already logged in previously, migrate data to this user.
if userData[0].UserID == userID {
xlog.Debugf("userID is the same, not doing anything.")
return nil
}
xlog.Debugf("AddUser: user exists, migrating data to this user. userID %d -> %d", userData[0].UserID, userID)
// first, set account entries to current user.
_, err := s.sqlDB.Exec("UPDATE accounts SET user_id = ? WHERE user_id = ?", userID, userData[0].UserID)
if err != nil {
xlog.Errorf("AddUser: migrating accounts for username %s to userID %d failed: %v", username, userID, err)
return err
}
// then migrate uploads to current user.
_, err = s.sqlDB.Exec("UPDATE uploads SET user_id = ? WHERE user_id = ?", userID, userData[0].UserID)
if err != nil {
xlog.Errorf("AddUser: migrating uploads for username %s to userID %d failed: %v", username, userID, err)
return err
}
// finally, delete old user. ON DELETE CASCADE should clean up any old cruft.
_, err = s.sqlDB.Exec("DELETE FROM users WHERE id = ?", userData[0].UserID)
} else {
// account is unknown, simply add new entry to accounts table.
_, err := s.sqlDB.Exec("INSERT INTO accounts (username, user_id) VALUES (?, ?)", username, userID)
if err != nil {
xlog.Errorf("AddUser: INSERT failed: %v", err)
return err
}
}
return nil
}
func executeCommand(cmd Command, dbStore *Store) {
StatCount("command from master", 1)
switch cmd.Cmd {
case "clearSlide":
if err := dbStore.ClearSlide(cmd.SessionID, cmd.Page); err != nil {
xlog.Errorf("clearSlide for %d page %d failed: %v", cmd.SessionID, cmd.Page, err)
}
}
}
func VerifyXSRFToken(w http.ResponseWriter, r *http.Request, sessionStore sessions.Store, secureCookie *securecookie.SecureCookie) bool {
xsrftoken := r.Header.Get(XSRFTOKENHEADER)
userID := ""
err := secureCookie.Decode(XSRFTOKEN, xsrftoken, &userID)
if err == nil {
session, _ := sessionStore.Get(r, SESSIONNAME)
if userID != "" && userID == session.Values["username"].(string) {
xlog.Infof("XSRF verification success for user %s", session.Values["username"].(string))
return true
}
xlog.Errorf("XSRF issue: userID = %s session = %s", userID, session.Values["username"].(string))
}
xlog.Errorf("XSRF verification failed: %v (Request: %#v", err, *r)
http.Error(w, http.StatusText(http.StatusForbidden), http.StatusForbidden)
StatCount("XSRF verification failed", 1)
return false
}
// WebsocketHandler handles an incoming WebSocket and dispatches to the correct
// handler based on whether the user is authenticated and whether the session
// he's viewing belongs to him.
func WebsocketHandler(s *websocket.Conn, dbStore *Store, sessionStore sessions.Store, redisAddr string) {
StatCount("websocket", 1)
xlog.Infof("WebsocketHandler: opened connection")
r := s.Request()
session, err := sessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Debugf("Getting session failed: %v", err)
StatCount("getting session failed", 1)
return
}
sessionData := struct {
SessionID string `json:"session_id"`
}{}
if err := websocket.JSON.Receive(s, &sessionData); err != nil {
xlog.Errorf("WebsocketHandler: JSON.Receive failed: %v", err)
return
}
owner, sessionID, err := dbStore.GetOwnerForSession(sessionData.SessionID)
if err != nil {
xlog.Errorf("GetOwnerForSession failed: %v", err)
return
}
if session.Values["userID"] == nil {
xlog.Errorf("WebsocketHandler is not authenticated -> slave handler")
slaveHandler(s, sessionID, dbStore, redisAddr)
} else if owner == session.Values["userID"].(int) {
xlog.Infof("WebSocketHandler owner matches -> master handler")
masterHandler(s, sessionID, dbStore, redisAddr)
} else {
xlog.Infof("WebSocketHandler owner doesn't match -> slave handler")
slaveHandler(s, sessionID, dbStore, redisAddr)
}
}
func (c *Converter) HandleMessage(message *nsq.Message) error {
xlog.Debugf("Processing Message %s: %s", message.Id, string(message.Body))
msg, err := simplejson.NewJson(message.Body)
if err != nil {
xlog.Errorf("HandleMessage: parsing message %s failed: %v", message.Id, err)
return err
}
srcFile := msg.Get("src_file").MustString()
targetFile := msg.Get("target_file").MustString()
publicId := msg.Get("upload_id").MustString()
if _, err := os.Stat(targetFile); err == nil {
xlog.Debugf("target file %s already exists.", targetFile)
return nil
}
if err := ConvertFileToPDF(srcFile, targetFile); err != nil {
xlog.Errorf("Converting %s to %s failed: %v", srcFile, targetFile, err)
_, err = c.DB.Exec("UPDATE uploads SET conversion = 'error' WHERE public_id = ?", publicId)
if err != nil {
xlog.Errorf("Updating conversion status for %s failed: %v", publicId, err)
}
os.Remove(srcFile)
os.Remove(targetFile)
return nil
} else {
_, err = c.DB.Exec("UPDATE uploads SET conversion = 'success' WHERE public_id = ?", publicId)
if err != nil {
xlog.Errorf("Updating conversion status for %s failed: %v", publicId, err)
}
}
xlog.Debugf("Conversion of upload %s finished.", publicId)
return nil
}
func masterHandler(s *websocket.Conn, sessionID int, dbStore *Store, redisAddr string) {
xlog.Debugf("entering MasterHandler")
c, err := redis.Dial("tcp", redisAddr)
if err != nil {
xlog.Errorf("redis.Dial failed: %v", err)
return
}
defer c.Close()
for {
var cmd Command
if err := websocket.JSON.Receive(s, &cmd); err != nil {
xlog.Errorf("masterHandler: JSON.Receive failed: %v", err)
break
}
xlog.Debugf("masterHandler: received command: %#v", cmd)
cmd.SessionID = sessionID
cmd.Timestamp = time.Now()
if cmd.Cmd != "clearSlide" {
if err := dbStore.InsertCommand(&cmd); err != nil {
xlog.Errorf("Inserting command failed: %v", err)
break
}
}
executeCommand(cmd, dbStore)
cmdJSON, _ := json.Marshal(cmd)
c.Send("PUBLISH", fmt.Sprintf("session.%d", sessionID), string(cmdJSON))
c.Flush()
}
xlog.Debugf("masterHandler: closing connection")
}
func (h *LoggedInHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
StatCount("loggedin call", 1)
jsonEncoder := json.NewEncoder(w)
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
w.Header().Set("Content-Type", "application/json")
jsonEncoder.Encode(map[string]bool{"logged_in": false})
xlog.Errorf("Error fetching session: %v", err)
return
}
loggedIn := false
username, ok := session.Values["username"].(string)
if ok {
loggedIn = true
}
w.Header().Set("Content-Type", "application/json")
jsonEncoder.Encode(map[string]interface{}{"logged_in": loggedIn, "username": username})
}
func (h *ConnectedHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Errorf("Error fetching session: %v", err)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
userID := session.Values["userID"].(int)
systems := h.DBStore.GetConnectedSystemsForUser(userID)
jsonData := make(map[string]bool)
for _, s := range systems {
jsonData[s] = true
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(jsonData)
}
// Store stores a new file with a specified id in the filesystem. If the
// file isn't a PDF file, it also attempts a conversion to a PDF file.
func (store *FileUploadStore) Store(id string, uploadedFile io.Reader, origFileName string) (isPDF bool, err error) {
filename := path.Join(store.UploadDir, id+".pdf")
tmpFile := path.Join(store.TmpDir, id+"_"+origFileName)
tmpf, err := os.OpenFile(tmpFile, os.O_WRONLY|os.O_CREATE, 0644)
if err != nil {
return false, err
}
io.Copy(tmpf, uploadedFile)
tmpf.Close()
f, err := os.Open(tmpFile)
if err != nil {
return false, err
}
defer f.Close()
buf := make([]byte, 4)
if _, err = f.Read(buf); err != nil {
return false, err
}
if bytes.Equal(buf, []byte("%PDF")) {
xlog.Debugf("%s is a PDF file, renaming to %s", tmpFile, filename)
os.Rename(tmpFile, filename)
return true, nil
}
if err = store.ConvertFileToPDF(id, tmpFile, filename); err != nil {
xlog.Errorf("conversion to PDF of %s failed: %v", tmpFile, err)
os.Remove(tmpFile)
os.Remove(filename)
return false, err
}
return false, nil
}
// GetConnectedSystemsForUser returns a slice of auth service identifiers
// for which accounts exist that are associated with the specified userID.
func (s *Store) GetConnectedSystemsForUser(userID int) []string {
systemMappings := map[string]string{
"google.com": "gplus",
"twitter.com": "twitter",
"persona": "persona",
}
connectedAccounts := []*struct {
Username string `meddler:"username"`
}{}
if err := meddler.QueryAll(s.sqlDB, &connectedAccounts, "SELECT username FROM accounts WHERE user_id = ?", userID); err != nil {
xlog.Errorf("Querying usernames for userID %d failed: %v", userID, err)
return []string{}
}
systems := make([]string, 0, len(connectedAccounts))
for _, acc := range connectedAccounts {
systems = append(systems, systemMappings[strings.Split(acc.Username, ":")[0]])
}
return systems
}
func (h *PersonaAuthHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Errorf("Error fetching session: %v", err)
session, _ = h.SessionStore.New(r, SESSIONNAME)
}
assertionData := struct {
Assertion string `json:"assertion"`
}{}
if err := json.NewDecoder(r.Body).Decode(&assertionData); err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
form := url.Values{"assertion": []string{assertionData.Assertion}, "audience": []string{h.Audience}}
xlog.Debugf("Verifying Persona assertion...")
resp, err := http.PostForm("https://verifier.login.persona.org/verify", form)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
verifierResponse := struct {
Status string `json:"status"`
Email string `json:"email"`
Audience string `json:"audience"`
Expires uint64 `json:"expires"`
Issuer string `json:"issuer"`
}{}
if err := json.NewDecoder(resp.Body).Decode(&verifierResponse); err != nil {
http.Error(w, err.Error(), http.StatusForbidden)
return
}
xlog.Debugf("Verifier response: %#v", verifierResponse)
if verifierResponse.Status != "okay" {
http.Error(w, "Not authenticated", http.StatusForbidden)
return
}
if userID, ok := session.Values["userID"].(int); ok {
xlog.Debugf("Persona: already logged in (userID = %d), connecting account", userID)
// we have a valid session -> connect account to user
username := "******" + verifierResponse.Email
err := h.DBStore.AddUser(username, userID)
if err != nil {
xlog.Errorf("Persona: error adding user: %v", err)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
w.WriteHeader(http.StatusOK)
// TODO: maybe deliver some additional information?
} else {
username := "******" + verifierResponse.Email
xlog.Debugf("Persona: username = %s", username)
userID, err := h.DBStore.CreateUser(username)
if err != nil {
xlog.Errorf("Error creating user: %v", err)
http.Error(w, err.Error(), http.StatusForbidden)
}
xlog.Debugf("Persona: userID = %d", userID)
session.Values["userID"] = userID
session.Values["username"] = username
session.Values["email"] = verifierResponse.Email
session.Save(r, w)
xsrftoken, _ := h.SecureCookie.Encode(XSRFTOKEN, username)
http.SetCookie(w, &http.Cookie{Name: XSRFTOKEN, Value: xsrftoken, Path: "/"})
w.WriteHeader(http.StatusOK)
}
}
func (h *UploadHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
/* // re-enable as soon as ng-upload can do that.
if !VerifyXSRFToken(w, r, h.SessionStore, h.SecureCookie) {
return
}
*/
session, err := h.SessionStore.Get(r, SESSIONNAME)
if err != nil {
xlog.Debugf("Getting session failed: %v", err)
StatCount("getting session failed", 1)
http.Error(w, err.Error(), http.StatusForbidden)
return
}
if session.Values["userID"] == nil {
http.Error(w, "authentication required", http.StatusForbidden)
return
}
if err := r.ParseMultipartForm(10 * 1024 * 1024); err != nil {
http.Error(w, "couldn't parse form", http.StatusInternalServerError)
return
}
StatCount("upload presentation", 1)
title := r.FormValue("title")
if title == "" {
http.Error(w, "empty title", http.StatusNotAcceptable)
return
}
file, fhdr, err := r.FormFile("file")
if err != nil {
http.Error(w, "couldn't read form", http.StatusInternalServerError)
return
}
id := generateID()
conversion := "success"
if isPDF, err := h.UploadStore.Store(id, file, fhdr.Filename); err != nil {
xlog.Errorf("Storing file for upload %s failed: %v", id, err)
http.Error(w, err.Error(), http.StatusInternalServerError)
} else if !isPDF {
conversion = "progress"
}
if err := h.DBStore.InsertUpload(&Upload{
PublicID: id,
UserID: session.Values["userID"].(int),
Title: title,
Uploaded: time.Now(),
Conversion: conversion,
}); err != nil {
xlog.Errorf("Insert failed: %v", err)
http.Error(w, "insert failed", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]string{"id": id})
}