first commit

app.py

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+import os
+import sys
+import logging
+
+from flask import Flask
+from lib.config import load_config, get_web_config, get_limits_config
+from lib.log_handler import setup_logging
+from lib.db import init_database
+
+app = Flask(__name__,
+            template_folder=os.path.join(os.path.dirname(os.path.abspath(__file__)), 'templates'),
+            static_folder=os.path.join(os.path.dirname(os.path.abspath(__file__)), 'static'))
+
+# MAX_CONTENT_LENGTH：SRS 9.1 要求 docx ≤1MB、image ≤256KB。
+# JSON 请求体的 Base64 编码会让 docx 膨胀约 33%，叠加多图章项后取 4MB 比较保守。
+# 真正的硬限制由 lib/validators.validate_docx_size 在解码后强制。
+app.config['MAX_CONTENT_LENGTH'] = 8 * 1024 * 1024
+
+from routes.pages import pages_bp
+from routes.api import api_bp
+from routes.db_api import db_api_bp
+from routes.batch_api import batch_api_bp
+from routes.monitor_api import monitor_api_bp
+
+app.register_blueprint(pages_bp)
+app.register_blueprint(api_bp)
+app.register_blueprint(db_api_bp)
+app.register_blueprint(batch_api_bp)
+app.register_blueprint(monitor_api_bp)
+
+
+def ensure_dirs():
+    base = os.path.dirname(os.path.abspath(__file__))
+    for d in ['temp', 'logs', 'output', 'data', 'static', 'static/css', 'static/js']:
+        os.makedirs(os.path.join(base, d), exist_ok=True)
+
+
+def main():
+    load_config()
+    setup_logging()
+    ensure_dirs()
+
+    logger = logging.getLogger(__name__)
+    logger.info("===== 自动签名系统启动 =====")
+
+    limits = get_limits_config()
+    logger.info("限制配置: docx_max=%d bytes, image_max=%d bytes, stamp_max=%d, log_max=%d",
+                limits['docx_max_bytes'], limits['image_max_bytes'],
+                limits['stamp_max_count'], limits['log_max_entries'])
+
+    try:
+        ok = init_database(strict_mysql=False)
+        if not ok:
+            logger.error("数据库初始化失败（MySQL 不可用且 strict 模式）")
+        else:
+            from lib.db import get_active_db_type
+            db_type = get_active_db_type()
+            logger.info("数据库初始化完成, 当前使用: %s", db_type.upper())
+    except Exception as e:
+        logger.error("数据库初始化失败: %s", str(e))
+
+    web_cfg = get_web_config()
+    host = web_cfg['host']
+    port = web_cfg['port']
+    debug = web_cfg['debug']
+
+    logger.info("Web服务: %s:%d, debug=%s", host, port, debug)
+
+    if debug:
+        app.run(host=host, port=port, debug=True)
+    else:
+        try:
+            from waitress import serve
+            logger.info("使用 Waitress 生产服务器")
+            try:
+                serve(app, host=host, port=port, threads=4)
+            except OSError:
+                if port == 5001:
+                    logger.warning("端口 %d 被占用或无权限, 尝试端口 5002", port)
+                    serve(app, host=host, port=5002, threads=4)
+                else:
+                    raise
+        except ImportError:
+            logger.warning("Waitress 未安装, 使用 Flask 开发服务器")
+            app.run(host=host, port=port, debug=False)
+
+
+if __name__ == '__main__':
+    main()