Create email_test.py

email_test.py

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+#!/usr/bin/env python3
+# email_test.py
+# 使用方法：
+#   1) 在環境變數設定 ALERT_EMAIL 與 ALERT_PASS
+#      ALERT_EMAIL = yourname@gmail.com
+#      ALERT_PASS  = Google App Password (16 chars, no spaces)
+#   2) python email_test.py recipient@example.com "可選主旨" "可選內文"
+
+import os
+import sys
+import smtplib
+import ssl
+from email.message import EmailMessage
+from datetime import datetime
+
+def send_test_email(sender_email, app_password, recipient_email,
+                    subject=None, body=None):
+    subject = subject or f"[測試] SMTP 郵件 {datetime.now().isoformat()}"
+    body = body or "這是一封由 email_test.py 發出的測試郵件。若收到表示 SMTP 與應用程式密碼設定正確。"
+
+    msg = EmailMessage()
+    msg["From"] = sender_email
+    msg["To"] = recipient_email
+    msg["Subject"] = subject
+    msg.set_content(body)
+
+    smtp_host = "smtp.gmail.com"
+    smtp_port = 465  # SSL
+
+    context = ssl.create_default_context()
+    try:
+        with smtplib.SMTP_SSL(smtp_host, smtp_port, context=context) as server:
+            server.login(sender_email, app_password)
+            server.send_message(msg)
+        return True, "郵件已成功發送。"
+    except Exception as e:
+        return False, f"發送失敗：{e}"
+
+def main():
+    sender = os.getenv("ALERT_EMAIL")
+    app_pass = os.getenv("ALERT_PASS")
+
+    if not sender or not app_pass:
+        print("錯誤：請先設定環境變數 ALERT_EMAIL 與 ALERT_PASS (Gmail 應用程式密碼)。")
+        print("範例（Linux/macOS）：")
+        print("  export ALERT_EMAIL='you@gmail.com'")
+        print("  export ALERT_PASS='abcdabcdefghijklmnop'")
+        print("範例（Windows PowerShell）：")
+        print("  setx ALERT_EMAIL \"you@gmail.com\"")
+        print("  setx ALERT_PASS \"abcdabcdefghijklmnop\"")
+        sys.exit(1)
+
+    if len(sys.argv) < 2:
+        print("用法：python email_test.py recipient@example.com [subject] [body]")
+        sys.exit(1)
+
+    recipient = sys.argv[1]
+    subject = sys.argv[2] if len(sys.argv) >= 3 else None
+    body = sys.argv[3] if len(sys.argv) >= 4 else None
+
+    ok, msg = send_test_email(sender, app_pass, recipient, subject, body)
+    if ok:
+        print("✅", msg)
+    else:
+        print("❌", msg)
+        sys.exit(2)
+
+if __name__ == "__main__":
+    main()