From b2ad000e07e1c87d3561b5aa94fdc88c779872f0 Mon Sep 17 00:00:00 2001
From: dengjunjie <dengjunjie@hnkhzn.com>
Date: 星期二, 18 二月 2025 22:34:54 +0800
Subject: [PATCH] 1
---
项目代码/WMS/WIDESEA_WMSServer/WIDESEA_Core/Utilities/VierificationCode.cs | 122 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 122 insertions(+), 0 deletions(-)
diff --git "a/\351\241\271\347\233\256\344\273\243\347\240\201/WMS/WIDESEA_WMSServer/WIDESEA_Core/Utilities/VierificationCode.cs" "b/\351\241\271\347\233\256\344\273\243\347\240\201/WMS/WIDESEA_WMSServer/WIDESEA_Core/Utilities/VierificationCode.cs"
new file mode 100644
index 0000000..b0cdec4
--- /dev/null
+++ "b/\351\241\271\347\233\256\344\273\243\347\240\201/WMS/WIDESEA_WMSServer/WIDESEA_Core/Utilities/VierificationCode.cs"
@@ -0,0 +1,122 @@
+锘縰sing SkiaSharp;
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WIDESEA_Core.Utilities
+{
+ public static class VierificationCode
+ {
+ private static readonly string[] _chars = new string[] { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "P", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z" };
+
+ private static readonly SKColor[] colors = { SKColors.Black, SKColors.Green, SKColors.Brown };
+
+ private static readonly string[] fonts = { "Verdana", "Microsoft Sans Serif", "Comic Sans MS", "Arial", "瀹嬩綋" };
+ public static string RandomText()
+ {
+ string code = "";//浜х敓鐨勯殢鏈烘暟
+ int temp = -1;
+ Random rand = new Random();
+ for (int i = 1; i < 5; i++)
+ {
+ if (temp != -1)
+ {
+ rand = new Random(i * temp * unchecked((int)DateTime.Now.Ticks));
+ }
+ int t = rand.Next(61);
+ if (temp != -1 && temp == t)
+ {
+ return RandomText();
+ }
+ temp = t;
+ code += _chars[t];
+ }
+ return code;
+ }
+ public static string CreateBase64Imgage(string code)
+ {
+ var random = new Random();
+ var info = new SKImageInfo((int)code.Length * 18, 32);
+ using var bitmap = new SKBitmap(info);
+ using var canvas = new SKCanvas(bitmap);
+
+ canvas.Clear(SKColors.White);
+
+ using var pen = new SKPaint();
+ pen.FakeBoldText = true;
+ pen.Style = SKPaintStyle.Fill;
+ pen.TextSize = 20;// 0.6f * info.Width * pen.TextSize / pen.MeasureText(code);
+
+ //缁樺埗闅忔満瀛楃
+ for (int i = 0; i < code.Length; i++)
+ {
+ pen.Color = random.GetRandom(colors);//闅忔満棰滆壊绱㈠紩鍊�
+
+ pen.Typeface = SKTypeface.FromFamilyName(random.GetRandom(fonts), 700, 20, SKFontStyleSlant.Italic);//閰嶇疆瀛椾綋
+ var point = new SKPoint()
+ {
+ X = i * 16,
+ Y = 22// info.Height - ((i + 1) % 2 == 0 ? 2 : 4),
+
+ };
+ canvas.DrawText(code.Substring(i, 1), point, pen);//缁樺埗涓�涓獙璇佸瓧绗�
+
+ }
+
+ // 缁樺埗鍣偣
+ var points = Enumerable.Range(0, 100).Select(
+ _ => new SKPoint(random.Next(bitmap.Width), random.Next(bitmap.Height))
+ ).ToArray();
+ canvas.DrawPoints(
+ SKPointMode.Points,
+ points,
+ pen);
+
+ //缁樺埗璐濆灏旂嚎鏉�
+ for (int i = 0; i < 2; i++)
+ {
+ var p1 = new SKPoint(0, 0);
+ var p2 = new SKPoint(0, 0);
+ var p3 = new SKPoint(0, 0);
+ var p4 = new SKPoint(0, 0);
+
+ var touchPoints = new SKPoint[] { p1, p2, p3, p4 };
+
+ using var bPen = new SKPaint();
+ bPen.Color = random.GetRandom(colors);
+ bPen.Style = SKPaintStyle.Stroke;
+
+ using var path = new SKPath();
+ path.MoveTo(touchPoints[0]);
+ path.CubicTo(touchPoints[1], touchPoints[2], touchPoints[3]);
+ canvas.DrawPath(path, bPen);
+ }
+ return bitmap.ToBase64String(SKEncodedImageFormat.Png);
+ }
+
+ public static T GetRandom<T>(this Random random, T[] tArray)
+ {
+ if (random == null) random = new Random();
+ return tArray[random.Next(tArray.Length)];
+ }
+
+ /// <summary>
+ /// SKBitmap杞珺ase64String
+ /// </summary>
+ /// <param name="bitmap"></param>
+ /// <param name="format"></param>
+ /// <returns></returns>
+ public static string ToBase64String(this SKBitmap bitmap, SKEncodedImageFormat format)
+ {
+ using var memStream = new MemoryStream();
+ using var wstream = new SKManagedWStream(memStream);
+ bitmap.Encode(wstream, format, 32);
+ memStream.TryGetBuffer(out ArraySegment<byte> buffer);
+ return $"{Convert.ToBase64String(buffer.Array, 0, (int)memStream.Length)}";
+ }
+ }
+}
--
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