diff --git a/sreweekly-digest/scripts/sreweekly.py b/sreweekly-digest/scripts/sreweekly.py
index 5d43b12..a644058 100644
--- a/sreweekly-digest/scripts/sreweekly.py
+++ b/sreweekly-digest/scripts/sreweekly.py
@@ -43,7 +43,7 @@ SRE Weekly 抓取与文章提取脚本
   pip3 install feedparser trafilatura
 """
 from html.parser import HTMLParser
-import argparse, html, json, os, re, sys, time, urllib.request, urllib.error
+import argparse, html, http.client, json, os, re, sys, time, urllib.error, urllib.parse, urllib.request
 
 try:
     import feedparser
@@ -390,12 +390,16 @@ def fetch_article_html(url, cache_path, force=False):
     if not force and os.path.exists(cache_path) and os.path.getsize(cache_path) > 0:
         with open(cache_path, "r", encoding="utf-8", errors="replace") as f:
             return f.read(), None
-    req = urllib.request.Request(url, headers={
-        "User-Agent": DEFAULT_UA,
-        "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
-        "Accept-Language": "en-US,en;q=0.9",
-    })
     try:
+        safe_url = urllib.parse.quote(url, safe=":/?#[]@!$&'()*+,;=%~")
+    except (UnicodeError, TypeError) as e:
+        return None, f"url sanitize failed: {e}"
+    try:
+        req = urllib.request.Request(safe_url, headers={
+            "User-Agent": DEFAULT_UA,
+            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
+            "Accept-Language": "en-US,en;q=0.9",
+        })
         with urllib.request.urlopen(req, timeout=FETCH_TIMEOUT) as r:
             ctype = r.headers.get("Content-Type", "")
             if "html" not in ctype.lower() and "xml" not in ctype.lower():
@@ -410,7 +414,7 @@ def fetch_article_html(url, cache_path, force=False):
         return None, f"HTTP {e.code}"
     except urllib.error.URLError as e:
         return None, f"URLError: {e.reason}"
-    except (TimeoutError, OSError) as e:
+    except (TimeoutError, OSError, http.client.HTTPException, ValueError, UnicodeError) as e:
         return None, f"{type(e).__name__}: {e}"
     os.makedirs(os.path.dirname(cache_path), exist_ok=True)
     with open(cache_path, "w", encoding="utf-8") as f:
@@ -486,6 +490,7 @@ def extract_one(iid, entry, base_dir, force=False, fetch=True, force_fetch=False
             f.write(content)
 
     if fetch and fetch_log:
+        os.makedirs(art_cache_dir, exist_ok=True)
         with open(os.path.join(art_cache_dir, "index.json"), "w", encoding="utf-8") as f:
             json.dump(fetch_log, f, ensure_ascii=False, indent=2)
 
@@ -558,7 +563,7 @@ def cmd_extract(args, manifest, base_dir):
             force=args.force, fetch=fetch,
             force_fetch=args.force_fetch, sleep=args.sleep,
         )
-    save_manifest(base_dir, manifest)
+        save_manifest(base_dir, manifest)
 
 # ---------------------------------------------------------------- 展示