Update app.py
Browse files
app.py
CHANGED
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import os
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import re
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import logging
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from flask import Flask, request, jsonify
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from flask_cors import CORS
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from transformers import AutoTokenizer, AutoModelForSeq2SeqLM
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import torch
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import psycopg2
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from datetime import datetime
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app = Flask(__name__)
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CORS(app)
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# إعدادات التسجيل
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logging.basicConfig(level=logging.INFO)
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logger = logging.getLogger(__name__)
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# إعدادات النموذج
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MODEL_NAME = "tscholak/
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SUPABASE_DB_URL = os.getenv('SUPABASE_DB_URL')
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# تهيئة مجلد الذاكرة المؤقتة
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os.makedirs("model_cache", exist_ok=True)
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os.environ["TRANSFORMERS_CACHE"] = "model_cache"
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os.environ["TORCH_CACHE"] = "model_cache"
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tokenizer = None
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model = None
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def initialize():
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global tokenizer, model
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try:
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logger.info("🚀 جاري تحميل النموذج...")
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tokenizer = AutoTokenizer.from_pretrained(
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MODEL_NAME,
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cache_dir="model_cache"
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)
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logger.info("✅ تم تحميل النموذج على
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CONSTRAINT
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user_mac_address
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conn
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cursor
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app.run(host='0.0.0.0', port=7860)
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import os
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import re
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import logging
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from flask import Flask, request, jsonify
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from flask_cors import CORS
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from transformers import AutoTokenizer, AutoModelForSeq2SeqLM
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import torch
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import psycopg2
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from datetime import datetime
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app = Flask(__name__)
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CORS(app)
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# إعدادات التسجيل
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logging.basicConfig(level=logging.INFO)
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logger = logging.getLogger(__name__)
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# إعدادات النموذج
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MODEL_NAME = "tscholak/3vnuv1vf" # نموذج متخصص لـ PostgreSQL
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SUPABASE_DB_URL = os.getenv('SUPABASE_DB_URL')
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# تهيئة مجلد الذاكرة المؤقتة
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os.makedirs("model_cache", exist_ok=True)
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os.environ["TRANSFORMERS_CACHE"] = "model_cache"
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os.environ["TORCH_CACHE"] = "model_cache"
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tokenizer = None
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model = None
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def initialize():
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global tokenizer, model
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try:
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logger.info("🚀 جاري تحميل النموذج...")
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tokenizer = AutoTokenizer.from_pretrained(
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MODEL_NAME,
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cache_dir="model_cache"
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)
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model = AutoModelForSeq2SeqLM.from_pretrained(
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MODEL_NAME,
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cache_dir="model_cache",
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device_map="auto",
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torch_dtype=torch.float16, # لتوفير الذاكرة
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low_cpu_mem_usage=True
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)
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if torch.cuda.is_available():
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model.to('cuda')
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logger.info("✅ تم تحميل النموذج على GPU")
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else:
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logger.info("✅ تم تحميل النموذج على CPU")
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model.eval()
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except Exception as e:
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logger.error(f"❌ فشل في تحميل النموذج: {str(e)}")
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raise
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initialize()
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# سكيما قاعدة البيانات (نفسها كما في الكود الأصلي)
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DB_SCHEMA = """
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CREATE TABLE public.profiles (
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id uuid NOT NULL,
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updated_at timestamp with time zone,
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username text UNIQUE CHECK (char_length(username) >= 3),
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full_name text,
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avatar_url text,
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website text,
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cam_mac text UNIQUE,
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fcm_token text,
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notification_enabled boolean DEFAULT true,
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CONSTRAINT profiles_pkey PRIMARY KEY (id),
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CONSTRAINT profiles_id_fkey FOREIGN KEY (id) REFERENCES auth.users(id)
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);
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CREATE TABLE public.place (
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id bigint GENERATED ALWAYS AS IDENTITY NOT NULL,
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created_at timestamp with time zone DEFAULT (now() AT TIME ZONE 'utc'::text),
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name text,
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CONSTRAINT place_pkey PRIMARY KEY (id)
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);
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CREATE TABLE public.user_place (
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id bigint GENERATED ALWAYS AS IDENTITY NOT NULL,
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created_at timestamp with time zone NOT NULL DEFAULT now(),
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place_id bigint,
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user_cam_mac text,
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CONSTRAINT user_place_pkey PRIMARY KEY (id),
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CONSTRAINT user_place_place_id_fkey FOREIGN KEY (place_id) REFERENCES public.place(id),
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CONSTRAINT user_place_user_cam_mac_fkey FOREIGN KEY (user_cam_mac) REFERENCES public.profiles(cam_mac)
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);
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CREATE TABLE public.data (
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id bigint GENERATED ALWAYS AS IDENTITY NOT NULL,
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created_at timestamp without time zone,
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caption text,
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image_url text,
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latitude double precision DEFAULT '36.1833854'::double precision,
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longitude double precision DEFAULT '37.1309255'::double precision,
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user_place_id bigint,
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cam_mac text,
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CONSTRAINT data_pkey PRIMARY KEY (id),
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CONSTRAINT data_user_place_id_fkey FOREIGN KEY (user_place_id) REFERENCES public.user_place(id)
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);
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CREATE TABLE public.biodata (
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id bigint GENERATED ALWAYS AS IDENTITY NOT NULL,
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created_at timestamp with time zone NOT NULL DEFAULT now(),
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mac_address text,
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acceleration_x double precision,
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acceleration_y double precision,
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acceleration_z double precision,
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gyro_x double precision,
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gyro_y double precision,
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gyro_z double precision,
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temperature double precision,
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CONSTRAINT biodata_pkey PRIMARY KEY (id),
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CONSTRAINT biodata_mac_address_fkey FOREIGN KEY (mac_address) REFERENCES public.profiles(cam_mac)
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);
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CREATE TABLE public.notification (
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id bigint GENERATED ALWAYS AS IDENTITY NOT NULL,
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created_at timestamp without time zone NOT NULL DEFAULT now(),
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user_cam_mac text,
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title text,
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message text,
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is_read boolean,
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acceleration_x double precision,
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acceleration_y double precision,
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acceleration_z double precision,
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gyro_x double precision,
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gyro_y double precision,
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gyro_z double precision,
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CONSTRAINT notification_pkey PRIMARY KEY (id),
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CONSTRAINT notification_user_cam_mac_fkey FOREIGN KEY (user_cam_mac) REFERENCES public.profiles(cam_mac)
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);
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CREATE TABLE public.flag (
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id bigint GENERATED ALWAYS AS IDENTITY NOT NULL,
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flag smallint,
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user_mac_address text,
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CONSTRAINT flag_pkey PRIMARY KEY (id),
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CONSTRAINT flag_user_mac_address_fkey FOREIGN KEY (user_mac_address) REFERENCES public.profiles(cam_mac)
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);
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""".strip()
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def get_db_connection():
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try:
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conn = psycopg2.connect(SUPABASE_DB_URL)
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logger.info("✅ تم الاتصال بقاعدة البيانات")
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return conn
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except Exception as err:
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logger.error(f"❌ خطأ في الاتصال بقاعدة البيانات: {err}")
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return None
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def validate_cam_mac(cam_mac):
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conn = get_db_connection()
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if not conn:
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return False
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try:
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cursor = conn.cursor()
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cursor.execute("SELECT 1 FROM profiles WHERE cam_mac = %s;", (cam_mac,))
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return cursor.fetchone() is not None
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except Exception as e:
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logger.error(f"❌ خطأ في التحقق من cam_mac: {e}")
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return False
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finally:
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if conn:
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conn.close()
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def is_safe_sql(sql):
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"""تحقق مما إذا كان الاستعلام SELECT فقط وآمن للتنفيذ"""
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sql_upper = sql.upper()
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# قائمة بالأوامر المحظورة
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forbidden_commands = [
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"INSERT", "UPDATE", "DELETE", "CREATE",
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"DROP", "ALTER", "TRUNCATE", "GRANT",
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"REVOKE", "COMMIT", "ROLLBACK"
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]
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# التأكد من أن الاستعلام يبدأ بـ SELECT
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if not sql_upper.strip().startswith("SELECT"):
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return False
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# التأكد من عدم وجود أي أوامر محظورة
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for cmd in forbidden_commands:
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if cmd in sql_upper:
|
| 190 |
+
return False
|
| 191 |
+
|
| 192 |
+
return True
|
| 193 |
+
|
| 194 |
+
def clean_sql(sql):
|
| 195 |
+
"""تنظيف استعلام SQL لضمان أنه SELECT فقط"""
|
| 196 |
+
# إزالة أي شيء قبل SELECT
|
| 197 |
+
sql = re.sub(r'^[^S]*(SELECT)', 'SELECT', sql, flags=re.IGNORECASE)
|
| 198 |
+
|
| 199 |
+
# أخذ أول عبارة SQL فقط (تجاهل أي شيء بعد ;)
|
| 200 |
+
sql = sql.split(';')[0] + ';'
|
| 201 |
+
|
| 202 |
+
# إزالة المسافات الزائدة
|
| 203 |
+
sql = ' '.join(sql.split()).strip()
|
| 204 |
+
|
| 205 |
+
return sql
|
| 206 |
+
|
| 207 |
+
@app.route('/api/query', methods=['POST'])
|
| 208 |
+
def handle_query():
|
| 209 |
+
try:
|
| 210 |
+
data = request.get_json()
|
| 211 |
+
logger.info(f"📩 بيانات الطلب: {data}")
|
| 212 |
+
|
| 213 |
+
# التحقق من وجود البيانات المطلوبة
|
| 214 |
+
if not data or 'text' not in data or 'cam_mac' not in data:
|
| 215 |
+
logger.error("❌ بيانات ناقصة في الطلب")
|
| 216 |
+
return jsonify({"error": "يرجى إرسال 'text' و 'cam_mac'"}), 400
|
| 217 |
+
|
| 218 |
+
# التحقق من صحة cam_mac
|
| 219 |
+
if not validate_cam_mac(data['cam_mac']):
|
| 220 |
+
logger.error(f"❌ cam_mac غير صالح: {data['cam_mac']}")
|
| 221 |
+
return jsonify({"error": "عنوان MAC غير صالح"}), 403
|
| 222 |
+
|
| 223 |
+
# إنشاء الـ prompt مع تعليمات صارمة
|
| 224 |
+
prompt = f"""
|
| 225 |
+
### التعليمات الصارمة:
|
| 226 |
+
1. قم بتحويل السؤال إلى استعلام SELECT فقط لـ PostgreSQL.
|
| 227 |
+
2. يجب أن يتضمن الشرط: WHERE cam_mac = '{data['cam_mac']}'.
|
| 228 |
+
3. ممنوع تمامًا استخدام أي أوامر غير SELECT (مثل INSERT, UPDATE, DELETE, CREATE, DROP).
|
| 229 |
+
|
| 230 |
+
### هيكل قاعدة البيانات:
|
| 231 |
+
{DB_SCHEMA}
|
| 232 |
+
|
| 233 |
+
### أمثلة صحيحة:
|
| 234 |
+
- السؤال: "ما عدد زياراتي للمكتب؟"
|
| 235 |
+
SQL: SELECT COUNT(*) FROM data WHERE cam_mac = '{data['cam_mac']}';
|
| 236 |
+
|
| 237 |
+
- السؤال: "ما هي آخر 10 زيارات؟"
|
| 238 |
+
SQL: SELECT * FROM data WHERE cam_mac = '{data['cam_mac']}' ORDER BY created_at DESC LIMIT 10;
|
| 239 |
+
|
| 240 |
+
### السؤال الحالي:
|
| 241 |
+
{data['text']}
|
| 242 |
+
|
| 243 |
+
### استعلام SQL (SELECT فقط):
|
| 244 |
+
"""
|
| 245 |
+
# توليد الاستعلام
|
| 246 |
+
inputs = tokenizer(prompt, return_tensors="pt", truncation=True, max_length=512)
|
| 247 |
+
if torch.cuda.is_available():
|
| 248 |
+
inputs = inputs.to('cuda')
|
| 249 |
+
|
| 250 |
+
with torch.no_grad():
|
| 251 |
+
outputs = model.generate(
|
| 252 |
+
**inputs,
|
| 253 |
+
max_length=256,
|
| 254 |
+
num_beams=4,
|
| 255 |
+
early_stopping=True
|
| 256 |
+
)
|
| 257 |
+
|
| 258 |
+
sql = tokenizer.decode(outputs[0], skip_special_tokens=True)
|
| 259 |
+
logger.info(f"⚡ الاستعلام المولد (قبل التنظيف): {sql}")
|
| 260 |
+
|
| 261 |
+
# تنظيف الاستعلام
|
| 262 |
+
sql = clean_sql(sql)
|
| 263 |
+
logger.info(f"🔧 الاستعلام بعد التنظيف: {sql}")
|
| 264 |
+
|
| 265 |
+
# التحقق من أن الاستعلام آمن
|
| 266 |
+
if not is_safe_sql(sql):
|
| 267 |
+
logger.error(f"❌ استعلام غير آمن: {sql}")
|
| 268 |
+
return jsonify({
|
| 269 |
+
"error": "تم توليد استعلام غير آمن",
|
| 270 |
+
"details": "الاستعلام يجب أن يكون SELECT فقط ويجب أن يتضمن شرط WHERE لـ cam_mac",
|
| 271 |
+
"sql": sql
|
| 272 |
+
}), 400
|
| 273 |
+
|
| 274 |
+
# تنفيذ الاستعلام
|
| 275 |
+
conn = get_db_connection()
|
| 276 |
+
if not conn:
|
| 277 |
+
return jsonify({"error": "فشل الاتصال بقاعدة البيانات"}), 500
|
| 278 |
+
|
| 279 |
+
try:
|
| 280 |
+
cursor = conn.cursor()
|
| 281 |
+
cursor.execute(sql)
|
| 282 |
+
|
| 283 |
+
if cursor.description:
|
| 284 |
+
columns = [desc[0] for desc in cursor.description]
|
| 285 |
+
rows = cursor.fetchall()
|
| 286 |
+
data = [dict(zip(columns, row)) for row in rows]
|
| 287 |
+
|
| 288 |
+
response = {
|
| 289 |
+
"data": data,
|
| 290 |
+
"sql": sql,
|
| 291 |
+
"timestamp": datetime.now().isoformat()
|
| 292 |
+
}
|
| 293 |
+
else:
|
| 294 |
+
conn.commit()
|
| 295 |
+
response = {
|
| 296 |
+
"message": "تم تنفيذ الاستعلام بنجاح (لا توجد بيانات للإرجاع)",
|
| 297 |
+
"sql": sql
|
| 298 |
+
}
|
| 299 |
+
|
| 300 |
+
return jsonify(response)
|
| 301 |
+
|
| 302 |
+
except Exception as e:
|
| 303 |
+
logger.error(f"❌ خطأ في تنفيذ SQL: {e}\nالاستعلام: {sql}")
|
| 304 |
+
return jsonify({
|
| 305 |
+
"error": "خطأ في تنفيذ الاستعلام",
|
| 306 |
+
"sql": sql,
|
| 307 |
+
"details": str(e)
|
| 308 |
+
}), 500
|
| 309 |
+
|
| 310 |
+
finally:
|
| 311 |
+
if conn:
|
| 312 |
+
conn.close()
|
| 313 |
+
|
| 314 |
+
except Exception as e:
|
| 315 |
+
logger.error(f"❌ خطأ غير متوقع: {str(e)}", exc_info=True)
|
| 316 |
+
return jsonify({"error": "فشل في معالجة الطلب"}), 500
|
| 317 |
+
|
| 318 |
+
@app.route('/health')
|
| 319 |
+
def health_check():
|
| 320 |
+
return jsonify({
|
| 321 |
+
"status": "healthy",
|
| 322 |
+
"model_loaded": model is not None,
|
| 323 |
+
"device": str(model.device) if model else "none",
|
| 324 |
+
"db_connection": get_db_connection() is not None,
|
| 325 |
+
"timestamp": datetime.now().isoformat()
|
| 326 |
+
})
|
| 327 |
+
|
| 328 |
+
@app.route('/')
|
| 329 |
+
def home():
|
| 330 |
+
return """
|
| 331 |
+
<h1>Text2SQL API</h1>
|
| 332 |
+
<p>استخدم <code>/api/query</code> مع POST</p>
|
| 333 |
+
<p>تحقق من الحالة: <a href="/health">/health</a></p>
|
| 334 |
+
"""
|
| 335 |
+
|
| 336 |
+
if __name__ == '__main__':
|
| 337 |
app.run(host='0.0.0.0', port=7860)
|