dnote/pkg/server/api/handlers/helpers.go
Sung Won Cho 23a511dbe0
Improve package structure (#207)
* Improve package structure

* Set up travis
2019-06-25 19:20:19 +10:00

116 lines
2.6 KiB
Go

/* Copyright (C) 2019 Monomax Software Pty Ltd
*
* This file is part of Dnote.
*
* Dnote is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Dnote is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Dnote. If not, see <https://www.gnu.org/licenses/>.
*/
package handlers
import (
crand "crypto/rand"
"encoding/base64"
"net/http"
"strings"
"github.com/dnote/dnote/pkg/server/api/logger"
"github.com/dnote/dnote/pkg/server/database"
"github.com/jinzhu/gorm"
"github.com/pkg/errors"
)
const (
demoUserEmail = "demo@dnote.io"
)
func generateRandomToken(bits int) (string, error) {
b := make([]byte, bits)
_, err := crand.Read(b)
if err != nil {
return "", errors.Wrap(err, "generating random bytes")
}
return base64.URLEncoding.EncodeToString(b), nil
}
func generateResetToken() (string, error) {
ret, err := generateRandomToken(16)
if err != nil {
return "", errors.Wrap(err, "generating random token")
}
return ret, nil
}
func generateVerificationCode() (string, error) {
ret, err := generateRandomToken(16)
if err != nil {
return "", errors.Wrap(err, "generating random token")
}
return ret, nil
}
func paginate(conn *gorm.DB, page int) *gorm.DB {
limit := 30
// Paginate
if page > 0 {
offset := limit * (page - 1)
conn = conn.Offset(offset)
}
conn = conn.Limit(limit)
return conn
}
func getBookIDs(books []database.Book) []int {
ret := []int{}
for _, book := range books {
ret = append(ret, book.ID)
}
return ret
}
func validatePassword(password string) error {
if len(password) < 8 {
return errors.New("Password should be longer than 8 characters")
}
return nil
}
func getClientType(origin string) string {
if strings.HasPrefix(origin, "moz-extension://") {
return "firefox-extension"
}
if strings.HasPrefix(origin, "chrome-extension://") {
return "chrome-extension"
}
return "web"
}
// handleError logs the error and responds with the given status code with a generic status text
func handleError(w http.ResponseWriter, logMessage string, err error, statusCode int) {
logger.Err("[%d] %s: %v\n", statusCode, logMessage, err)
statusText := http.StatusText(statusCode)
http.Error(w, statusText, statusCode)
}