AI Newsletter Digest improvements: fixed QP soft line break decoding, URL extraction, and content cleaning

skills/openclaw-self-healing/scripts/get-exchange-rate.py

@@ -0,0 +1,109 @@
+#!/usr/bin/env python3
+"""
+실시간 환율 조회 (USD/KRW)
+Provider: exchangerate.host → open.er-api.com (페일오버)
+캐시: 30분
+"""
+
+import json
+import sys
+import time
+from pathlib import Path
+from urllib.request import Request, urlopen
+from urllib.error import URLError, HTTPError
+
+CACHE_FILE = Path.home() / ".openclaw" / "cache" / "exchange-rate.json"
+CACHE_TTL = 1800  # 30분
+
+def load_cache():
+    """캐시 파일 읽기"""
+    if not CACHE_FILE.exists():
+        return None
+    try:
+        with open(CACHE_FILE, 'r') as f:
+            data = json.load(f)
+        # TTL 체크
+        if time.time() - data.get('timestamp', 0) < CACHE_TTL:
+            return data
+    except:
+        pass
+    return None
+
+def save_cache(rate, source):
+    """캐시 파일 저장"""
+    CACHE_FILE.parent.mkdir(parents=True, exist_ok=True)
+    with open(CACHE_FILE, 'w') as f:
+        json.dump({
+            'rate': rate,
+            'source': source,
+            'timestamp': time.time()
+        }, f)
+
+def fetch_exchangerate_host():
+    """Provider 1: exchangerate.host"""
+    try:
+        url = "https://api.exchangerate.host/latest?base=USD&symbols=KRW"
+        req = Request(url, headers={
+            'Accept': 'application/json',
+            'User-Agent': 'OpenClaw/1.0'
+        })
+        with urlopen(req, timeout=7) as response:
+            if response.status != 200:
+                return None
+            data = json.loads(response.read().decode())
+            return data.get('rates', {}).get('KRW')
+    except (URLError, HTTPError, Exception) as e:
+        print(f"[FX] exchangerate.host error: {e}", file=sys.stderr)
+        return None
+
+def fetch_er_api():
+    """Provider 2: open.er-api.com"""
+    try:
+        url = "https://open.er-api.com/v6/latest/USD"
+        req = Request(url, headers={
+            'Accept': 'application/json',
+            'User-Agent': 'OpenClaw/1.0'
+        })
+        with urlopen(req, timeout=7) as response:
+            if response.status != 200:
+                return None
+            data = json.loads(response.read().decode())
+            if data.get('result') != 'success':
+                return None
+            return data.get('rates', {}).get('KRW')
+    except (URLError, HTTPError, Exception) as e:
+        print(f"[FX] open.er-api.com error: {e}", file=sys.stderr)
+        return None
+
+def get_rate():
+    """환율 조회 (캐시 → API)"""
+    # 1. 캐시 확인
+    cached = load_cache()
+    if cached:
+        return cached['rate'], cached['source'], 'cached'
+    
+    # 2. API 호출 (페일오버)
+    rate = fetch_exchangerate_host()
+    source = 'exchangerate.host'
+    if rate is None:
+        rate = fetch_er_api()
+        source = 'open.er-api.com'
+    
+    if rate is None:
+        # 3. 마지막 캐시라도 있으면 사용
+        if cached:
+            return cached['rate'], cached['source'], 'stale-cache'
+        raise Exception("환율 조회 실패: USD→KRW")
+    
+    # 4. 캐시 저장
+    save_cache(rate, source)
+    return rate, source, 'fresh'
+
+if __name__ == '__main__':
+    try:
+        rate, source, status = get_rate()
+        print(f"{rate:.2f}")  # 숫자만 출력 (스크립트 연동용)
+        print(f"# Source: {source} ({status})", file=sys.stderr)
+    except Exception as e:
+        print(f"ERROR: {e}", file=sys.stderr)
+        sys.exit(1)