From 01c8df01ec0608f1f25b2f1444adabb98fa5ee8a Mon Sep 17 00:00:00 2001
From: Unknwon <u@gogs.io>
Date: Thu, 24 Oct 2019 01:51:46 -0700
Subject: internal: move packages under this directory (#5836)

* Rename pkg -> internal

* Rename routes -> route

* Move route -> internal/route

* Rename models -> db

* Move db -> internal/db

* Fix route2 -> route

* Move cmd -> internal/cmd

* Bump version
---
 internal/avatar/avatar.go | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 internal/avatar/avatar.go

(limited to 'internal/avatar/avatar.go')

diff --git a/internal/avatar/avatar.go b/internal/avatar/avatar.go
new file mode 100644
index 00000000..a8c3826d
--- /dev/null
+++ b/internal/avatar/avatar.go
@@ -0,0 +1,43 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package avatar
+
+import (
+	"fmt"
+	"image"
+	"image/color/palette"
+	"math/rand"
+	"time"
+
+	"github.com/issue9/identicon"
+)
+
+const AVATAR_SIZE = 290
+
+// RandomImage generates and returns a random avatar image unique to input data
+// in custom size (height and width).
+func RandomImageSize(size int, data []byte) (image.Image, error) {
+	randExtent := len(palette.WebSafe) - 32
+	rand.Seed(time.Now().UnixNano())
+	colorIndex := rand.Intn(randExtent)
+	backColorIndex := colorIndex - 1
+	if backColorIndex < 0 {
+		backColorIndex = randExtent - 1
+	}
+
+	// Define size, background, and forecolor
+	imgMaker, err := identicon.New(size,
+		palette.WebSafe[backColorIndex], palette.WebSafe[colorIndex:colorIndex+32]...)
+	if err != nil {
+		return nil, fmt.Errorf("identicon.New: %v", err)
+	}
+	return imgMaker.Make(data), nil
+}
+
+// RandomImage generates and returns a random avatar image unique to input data
+// in default size (height and width).
+func RandomImage(data []byte) (image.Image, error) {
+	return RandomImageSize(AVATAR_SIZE, data)
+}
-- 
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