better unescape, also unescape in xiami lyrics filename

src/you_get/common.py

@@ -11,7 +11,7 @@ import platform
 import threading
 
 from .version import __version__
-from .util import log, legitimize, sogou_proxy_server, unescape
+from .util import log, legitimize, sogou_proxy_server, get_filename, unescape
 
 dry_run = False
 force = False
@@ -523,8 +523,7 @@ def download_urls(urls, title, ext, total_size, output_dir = '.', refer = None,
             traceback.print_exc(file = sys.stdout)
             pass
     
-    title = unescape(title)
-    title = legitimize(title)
+    title = get_filename(title)
     
     filename = '%s.%s' % (title, ext)
     filepath = os.path.join(output_dir, filename)
@@ -604,7 +603,7 @@ def download_urls_chunked(urls, title, ext, total_size, output_dir = '.', refer
 
     assert ext in ('ts')
     
-    title = legitimize(title)
+    title = get_filename(title)
     
     filename = '%s.%s' % (title, 'ts')
     filepath = os.path.join(output_dir, filename)

src/you_get/extractor/xiami.py

@@ -29,8 +29,9 @@ def location_dec(str):
 
 def xiami_download_lyric(lrc_url, file_name, output_dir):
     lrc = get_html(lrc_url, faker = True)
+    filename = get_filename(file_name)
     if len(lrc) > 0:
-        with open(output_dir + "/" + file_name.replace('/', '-').replace('?', '-') + '.lrc', 'w', encoding='utf-8') as x:
+        with open(output_dir + "/" + filename + '.lrc', 'w', encoding='utf-8') as x:
             x.write(lrc)
 
 def xiami_download_pic(pic_url, file_name, output_dir):

src/you_get/util/strings.py

@@ -18,3 +18,8 @@ except ImportError:
       return chr(int('0'+s, 16))
     else:
       return chr(int(s))
+
+from .fs import legitimize
+
+def get_filename(htmlstring):
+  return legitimize(unescape(htmlstring))