From 913403e2859d7e3f816a347e9dc16ffa11e3cd88 Mon Sep 17 00:00:00 2001
From: Hykilpikonna <me@hydev.org>
Date: Sat, 9 Jan 2021 17:29:51 -0500
Subject: [PATCH] [B][+] Create /register api

---
 .../org/hydev/ios/alarmclock/Extensions.kt    |  5 ++++
 .../org/hydev/ios/alarmclock/data/User.kt     | 26 +++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 Backend/src/main/kotlin/org/hydev/ios/alarmclock/Extensions.kt

diff --git a/Backend/src/main/kotlin/org/hydev/ios/alarmclock/Extensions.kt b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/Extensions.kt
new file mode 100644
index 0000000..2139727
--- /dev/null
+++ b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/Extensions.kt
@@ -0,0 +1,5 @@
+package org.hydev.ios.alarmclock
+
+import org.springframework.http.ResponseEntity
+
+fun bad(msg: String): ResponseEntity<String> = ResponseEntity.badRequest().body(msg)
diff --git a/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/User.kt b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/User.kt
index 35596f3..627b05f 100644
--- a/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/User.kt
+++ b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/User.kt
@@ -32,3 +32,29 @@ data class User(
     @NotNull @Column(length = 128)
     var passHash: String,
 )
+
+interface UserRepo: JpaRepository<User, Long>
+
+@RestController
+@RequestMapping("/api/user")
+class UserApi(val repo: UserRepo)
+{
+    @GetMapping("/register")
+    fun register(@RequestParam("name") name: String, @RequestParam("pass") pass: String): Any
+    {
+        // Check username length
+        if (name.length !in 3..32) return bad("Username length not in range 3 to 32")
+
+        // Check if username exists
+        val em = ExampleMatcher.matching().withIgnorePaths("id", "passHash").withMatcher("name", ignoreCase())
+        val user = User(0, name, pass)
+        if (repo.exists(Example.of(user, em))) return bad("Username has already been used")
+
+        // Check password strength
+        if (pass.length < 8) return bad("Password must be longer than 8 chars")
+
+        // Register
+        repo.save(user)
+        return user
+    }
+}