1 files changed, 33 insertions, 1 deletions
diff --git a/gallery_dl/util.py b/gallery_dl/util.py
index bccae2d..92d1620 100644
--- a/gallery_dl/util.py
+++ b/gallery_dl/util.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2017-2021 Mike Fährmann
+# Copyright 2017-2022 Mike Fährmann
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
@@ -12,6 +12,7 @@ import re
 import os
 import sys
 import json
+import time
 import random
 import sqlite3
 import binascii
@@ -20,6 +21,7 @@ import functools
 import itertools
 import urllib.parse
 from http.cookiejar import Cookie
+from email.utils import mktime_tz, parsedate_tz
 from . import text, exception
 
 
@@ -272,6 +274,15 @@ def remove_directory(path):
         pass
 
 
+def set_mtime(path, mtime):
+    try:
+        if isinstance(mtime, str):
+            mtime = mktime_tz(parsedate_tz(mtime))
+        os.utime(path, (time.time(), mtime))
+    except Exception:
+        pass
+
+
 def load_cookiestxt(fp):
     """Parse a Netscape cookies.txt file and return a list of its Cookies"""
     cookies = []
@@ -413,6 +424,7 @@ GLOBALS = {
     "parse_int": text.parse_int,
     "urlsplit" : urllib.parse.urlsplit,
     "datetime" : datetime.datetime,
+    "timedelta": datetime.timedelta,
     "abort"    : raises(exception.StopExtraction),
     "terminate": raises(exception.TerminateExtraction),
     "re"       : re,
@@ -510,6 +522,26 @@ def build_extractor_filter(categories, negate=True, special=None):
         return lambda extr: any(t(extr) for t in tests)
 
 
+def build_proxy_map(proxies, log=None):
+    """Generate a proxy map"""
+    if not proxies:
+        return None
+
+    if isinstance(proxies, str):
+        if "://" not in proxies:
+            proxies = "http://" + proxies.lstrip("/")
+        return {"http": proxies, "https": proxies}
+
+    if isinstance(proxies, dict):
+        for scheme, proxy in proxies.items():
+            if "://" not in proxy:
+                proxies[scheme] = "http://" + proxy.lstrip("/")
+        return proxies
+
+    if log:
+        log.warning("invalid proxy specifier: %s", proxies)
+
+
 def build_predicate(predicates):
     if not predicates:
         return lambda url, kwdict: True