From 9f9ff58a0d06e84745a72930a1bcdfe3f9a04c17 Mon Sep 17 00:00:00 2001
From: Jan-Lukas Else <mail@jlelse.de>
Date: Sat, 29 May 2021 22:26:53 +0200
Subject: [PATCH] postCreationMutex

---
 postsDb.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/postsDb.go b/postsDb.go
index 8ff9ab0..a6553d9 100644
--- a/postsDb.go
+++ b/postsDb.go
@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"strings"
+	"sync"
 	"text/template"
 	"time"
 
@@ -120,11 +121,16 @@ type postCreationOptions struct {
 	oldStatus postStatus
 }
 
+var postCreationMutex sync.Mutex
+
 func (p *post) createOrReplace(o *postCreationOptions) error {
 	err := p.checkPost()
 	if err != nil {
 		return err
 	}
+	// Prevent bad things
+	postCreationMutex.Lock()
+	defer postCreationMutex.Unlock()
 	// Check if path is already in use
 	if o.new || (p.Path != o.oldPath) {
 		// Post is new or post path was changed