From 7ab9409ef05f0baa40099832a9b02f6651a0ad4b Mon Sep 17 00:00:00 2001
From: neviyn <neviynhd@gmail.com>
Date: Thu, 29 Apr 2021 22:25:35 +0100
Subject: [PATCH] Improved validation on tag terms

---
 src/main/kotlin/uk/co/neviyn/booru/Entity.kt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main/kotlin/uk/co/neviyn/booru/Entity.kt b/src/main/kotlin/uk/co/neviyn/booru/Entity.kt
index 047de0c..d80f443 100644
--- a/src/main/kotlin/uk/co/neviyn/booru/Entity.kt
+++ b/src/main/kotlin/uk/co/neviyn/booru/Entity.kt
@@ -8,6 +8,7 @@ import javax.persistence.JoinColumn
 import javax.persistence.JoinTable
 import javax.persistence.ManyToMany
 import javax.persistence.ManyToOne
+import javax.validation.constraints.Pattern
 
 @Entity
 open class User(
@@ -56,6 +57,7 @@ open class Image(
 @Entity
 open class Tag(
     @Column(unique = true)
+    @Pattern(regexp = "[a-zA-Z0-9_]*") // Only allow alphanumeric and underscores
     open var tag: String = "",
     @Id open var id: Long = -1
 )
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