Added locking

Former-commit-id: 2034389d03058ea5ba79125f8694bbb5e9712ec7 [formerly d1feaa08d9130b4cda3c529de51578f2a5320b61] [formerly 5362d1c477e2aa27c48804c5633880fdc794df95 [formerly d8052bdb7a]]
Former-commit-id: 07f6bc6cc11c9147e6a23354df6364c61d90a076 [formerly 27b9029d60a9a9003436a6e1f85332c989db0ce7]
Former-commit-id: 6cf5171e6af74ebb249005a931f360476b9e2d4e

db.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
+	"strings"
 	"time"
 
 	"github.com/boltdb/bolt"
@@ -40,9 +41,46 @@ type CowyoData struct {
 	Timestamps  []string
 }
 
-func (p *CowyoData) load(title string) error {
+func hasPassword(title string) (bool, error) {
+	title = strings.ToLower(title)
 	if !open {
-		return fmt.Errorf("db must be opened before saving!")
+		return false, fmt.Errorf("db must be opened before loading!")
+	}
+	hasPassword := false
+	err := db.View(func(tx *bolt.Tx) error {
+		var err error
+		b := tx.Bucket([]byte("datas"))
+		if b == nil {
+			return fmt.Errorf("db must be opened before loading!")
+		}
+		k := []byte(title)
+		val := b.Get(k)
+		if val == nil {
+			return nil
+		}
+		var p CowyoData
+		err = p.decode(val)
+		if err != nil {
+			return err
+		}
+		for _, line := range strings.Split(p.CurrentText, "\n") {
+			if strings.Contains(line, "<") == true && strings.Contains(line, ">") == true && strings.Contains(line, "user") == true && strings.Contains(line, "password") == true && strings.Contains(line, "public") == true {
+				hasPassword = true
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		fmt.Printf("Could not get CowyoData: %s", err)
+		return false, err
+	}
+	return hasPassword, nil
+}
+
+func (p *CowyoData) load(title string) error {
+	title = strings.ToLower(title)
+	if !open {
+		return fmt.Errorf("db must be opened before loading!")
 	}
 	err := db.View(func(tx *bolt.Tx) error {
 		var err error

routes.go

@@ -25,10 +25,15 @@ func editNote(c *gin.Context) {
 	} else if strings.ToLower(title) == "about" { //}&& strings.Contains(AllowedIPs, c.ClientIP()) != true {
 		c.Redirect(302, "/about/view")
 	} else {
-		c.HTML(http.StatusOK, "index.tmpl", gin.H{
-			"Title":      title,
-			"ExternalIP": RuntimeArgs.ExternalIP,
-		})
+		locked, _ := hasPassword(title)
+		if locked {
+			c.Redirect(302, "/"+title+"/view")
+		} else {
+			c.HTML(http.StatusOK, "index.tmpl", gin.H{
+				"Title":      title,
+				"ExternalIP": RuntimeArgs.ExternalIP,
+			})
+		}
 	}
 }