Update to v1.4

latest version/server/arcdownload.py

@@ -0,0 +1,48 @@
+import os
+import hashlib
+from flask import url_for
+
+
+def get_file_md5(file_path):
+    # 计算文件MD5
+    if not os.path.isfile(file_path):
+        return None
+    myhash = hashlib.md5()
+    f = open(file_path, 'rb')
+    while True:
+        b = f.read(8096)
+        if not b:
+            break
+        myhash.update(b)
+    f.close()
+    return myhash.hexdigest()
+
+
+def get_one_song(song_id, file_dir='./database/songs'):
+    # 获取一首歌的下载链接，返回字典
+    dir_list = os.listdir(os.path.join(file_dir, song_id))
+    re = {}
+    for i in dir_list:
+        if os.path.isfile(os.path.join(file_dir, song_id, i)) and i in ['0.aff', '1.aff', '2.aff', '3.aff', 'base.ogg']:
+            if i == 'base.ogg':
+                re['audio'] = {"checksum": get_file_md5(os.path.join(file_dir, song_id, 'base.ogg')),
+                               "url": url_for('download', file_path=song_id+'/base.ogg', _external=True)}
+            else:
+                if 'chart' not in re:
+                    re['chart'] = {}
+
+                re['chart'][i[0]] = {"checksum": get_file_md5(os.path.join(file_dir, song_id, i)),
+                                     "url": url_for('download', file_path=song_id+'/'+i, _external=True)}
+
+    return {song_id: re}
+
+
+def get_all_songs(file_dir='./database/songs'):
+    # 获取所有歌的下载链接，返回字典
+    dir_list = os.listdir(file_dir)
+    re = {}
+    for i in dir_list:
+        if os.path.isdir(os.path.join(file_dir, i)):
+            re.update(get_one_song(i))
+
+    return re