diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..72d9e9d
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,13 @@
+FROM python:3.6
+
+MAINTAINER malaohu <tua@live.cn>
+
+WORKDIR /usr/src/app
+
+COPY requirements.txt ./
+
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD [ "python", "./app.py" ]
diff --git a/app.py b/app.py
new file mode 100644
index 0000000..efcde65
--- /dev/null
+++ b/app.py
@@ -0,0 +1,124 @@
+#/usr/bin/env python3
+
+import os, sys, zipfile
+from flask import Flask
+from flask import request
+from flask import send_file
+import os.path
+
+app = Flask(__name__)
+
+VariantBase64Table = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='
+VariantBase64Dict = { i : VariantBase64Table[i] for i in range(len(VariantBase64Table)) }
+VariantBase64ReverseDict = { VariantBase64Table[i] : i for i in range(len(VariantBase64Table)) }
+
+def VariantBase64Encode(bs : bytes):
+    result = b''
+    blocks_count, left_bytes = divmod(len(bs), 3)
+
+    for i in range(blocks_count):
+        coding_int = int.from_bytes(bs[3 * i:3 * i + 3], 'little')
+        block = VariantBase64Dict[coding_int & 0x3f]
+        block += VariantBase64Dict[(coding_int >> 6) & 0x3f]
+        block += VariantBase64Dict[(coding_int >> 12) & 0x3f]
+        block += VariantBase64Dict[(coding_int >> 18) & 0x3f]
+        result += block.encode()
+
+    if left_bytes == 0:
+        return result
+    elif left_bytes == 1:
+        coding_int = int.from_bytes(bs[3 * blocks_count:], 'little')
+        block = VariantBase64Dict[coding_int & 0x3f]
+        block += VariantBase64Dict[(coding_int >> 6) & 0x3f]
+        result += block.encode()
+        return result
+    else:
+        coding_int = int.from_bytes(bs[3 * blocks_count:], 'little')
+        block = VariantBase64Dict[coding_int & 0x3f]
+        block += VariantBase64Dict[(coding_int >> 6) & 0x3f]
+        block += VariantBase64Dict[(coding_int >> 12) & 0x3f]
+        result += block.encode()
+        return result
+
+def VariantBase64Decode(s : str):
+    result = b''
+    blocks_count, left_bytes = divmod(len(s), 4)
+
+    for i in range(blocks_count):
+        block = VariantBase64ReverseDict[s[4 * i]]
+        block += VariantBase64ReverseDict[s[4 * i + 1]] << 6
+        block += VariantBase64ReverseDict[s[4 * i + 2]] << 12
+        block += VariantBase64ReverseDict[s[4 * i + 3]] << 18
+        result += block.to_bytes(3, 'little')
+
+    if left_bytes == 0:
+        return result
+    elif left_bytes == 2:
+        block = VariantBase64ReverseDict[s[4 * blocks_count]]
+        block += VariantBase64ReverseDict[s[4 * blocks_count + 1]] << 6
+        result += block.to_bytes(1, 'little')
+        return result
+    elif left_bytes == 3:
+        block = VariantBase64ReverseDict[s[4 * blocks_count]]
+        block += VariantBase64ReverseDict[s[4 * blocks_count + 1]] << 6
+        block += VariantBase64ReverseDict[s[4 * blocks_count + 2]] << 12
+        result += block.to_bytes(2, 'little')
+        return result
+    else:
+        raise ValueError('Invalid encoding.')
+
+def EncryptBytes(key : int, bs : bytes):
+    result = bytearray()
+    for i in range(len(bs)):
+        result.append(bs[i] ^ ((key >> 8) & 0xff))
+        key = result[-1] & key | 0x482D
+    return bytes(result)
+
+def DecryptBytes(key : int, bs : bytes):
+    result = bytearray()
+    for i in range(len(bs)):
+        result.append(bs[i] ^ ((key >> 8) & 0xff))
+        key = bs[i] & key | 0x482D
+    return bytes(result)
+
+class LicenseType:
+    Professional = 1
+    Educational = 3
+    Persional = 4
+
+def GenerateLicense(Type : LicenseType, Count : int, UserName : str, MajorVersion : int, MinorVersion):
+    assert(Count >= 0)
+    LicenseString = '%d#%s|%d%d#%d#%d3%d6%d#%d#%d#%d#' % (Type, 
+                                                          UserName, MajorVersion, MinorVersion, 
+                                                          Count, 
+                                                          MajorVersion, MinorVersion, MinorVersion,
+                                                          0,    # Unknown
+                                                          0,    # No Games flag. 0 means "NoGames = false". But it does not work.
+                                                          0)    # No Plugins flag. 0 means "NoPlugins = false". But it does not work.
+    EncodedLicenseString = VariantBase64Encode(EncryptBytes(0x787, LicenseString.encode())).decode()
+    with zipfile.ZipFile(EncodedLicenseString, 'w') as f:
+        f.writestr('Pro.key', data = EncodedLicenseString)
+    return EncodedLicenseString
+
+
+@app.route('/')
+def get_lc():
+    name = request.args.get('name', '')
+    version = request.args.get('ver', '')
+    MajorVersion, MinorVersion = version.split('.')[0:2]
+    MajorVersion = int(MajorVersion)
+    MinorVersion = int(MinorVersion)
+    lc = GenerateLicense(LicenseType.Professional, 1, name, MajorVersion, MinorVersion)
+    return lc
+
+@app.route('/download/<lc>')
+def download_lc(lc):
+    if lc and len(lc) > 5 and os.path.exists('./' + lc):
+        return send_file('./' + lc,
+            as_attachment=True,
+            attachment_filename='Custom.mxtpro') 
+    else:
+        return "请确保生成成功后再来下载！"
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0', port=5000, debug=False)
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..46a48dd
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+Flask==1.1.2