473 lines
23 KiB
Python
473 lines
23 KiB
Python
# -*- coding: utf-8 -*-
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import os
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import sys
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import hashlib
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import re
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import csv
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import math
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from io import StringIO, BytesIO
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from datetime import datetime, timedelta
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import logging
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import atexit
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import zipfile
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from flask import Flask, render_template, request, redirect, url_for, Response, flash
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from apscheduler.schedulers.background import BackgroundScheduler
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import psycopg2
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import psycopg2.extras
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import feedparser
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import bleach
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logging.basicConfig(stream=sys.stdout, level=logging.INFO, format='[%(asctime)s] %(levelname)s in %(module)s: %(message)s')
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app = Flask(__name__)
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app.config['SECRET_KEY'] = os.environ.get('SECRET_KEY', os.urandom(24))
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# Configuración de la base de datos
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DB_CONFIG = {
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"host": os.environ.get("DB_HOST", "localhost"),
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"port": int(os.environ.get("DB_PORT", 5432)),
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"dbname": os.environ.get("DB_NAME", "rss"),
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"user": os.environ.get("DB_USER", "rss"),
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"password": os.environ.get("DB_PASS", "x")
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}
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MAX_FALLOS = 5
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def get_conn():
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return psycopg2.connect(**DB_CONFIG)
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@app.template_filter('safe_html')
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def safe_html(text):
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if not text: return ""
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allowed_tags = {'a', 'b', 'strong', 'i', 'em', 'p', 'br', 'img'}
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allowed_attrs = {'a': ['href', 'title'], 'img': ['src', 'alt']}
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return bleach.clean(text, tags=allowed_tags, attributes=allowed_attrs, strip=True)
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@app.route("/")
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def home():
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noticias, categorias, continentes, paises = [], [], [], []
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cat_id = request.args.get("categoria_id")
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cont_id = request.args.get("continente_id")
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pais_id = request.args.get("pais_id")
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fecha_filtro = request.args.get("fecha")
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try:
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with get_conn() as conn:
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with conn.cursor(cursor_factory=psycopg2.extras.DictCursor) as cursor:
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cursor.execute("SELECT id, nombre FROM categorias ORDER BY nombre")
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categorias = cursor.fetchall()
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cursor.execute("SELECT id, nombre FROM continentes ORDER BY nombre")
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continentes = cursor.fetchall()
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if cont_id:
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cursor.execute("SELECT id, nombre, continente_id FROM paises WHERE continente_id = %s ORDER BY nombre", (cont_id,))
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else:
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cursor.execute("SELECT id, nombre, continente_id FROM paises ORDER BY nombre")
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paises = cursor.fetchall()
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sql_params, conditions = [], []
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sql_base = "SELECT n.fecha, n.titulo, n.resumen, n.url, n.imagen_url, c.nombre AS categoria, p.nombre AS pais, co.nombre AS continente FROM noticias n LEFT JOIN categorias c ON n.categoria_id = c.id LEFT JOIN paises p ON n.pais_id = p.id LEFT JOIN continentes co ON p.continente_id = co.id"
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if cat_id: conditions.append("n.categoria_id = %s"); sql_params.append(cat_id)
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if pais_id: conditions.append("n.pais_id = %s"); sql_params.append(pais_id)
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elif cont_id: conditions.append("p.continente_id = %s"); sql_params.append(cont_id)
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if fecha_filtro:
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try:
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fecha_obj = datetime.strptime(fecha_filtro, '%Y-%m-%d')
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fecha_inicio = fecha_obj
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fecha_fin = fecha_obj + timedelta(days=1)
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conditions.append("n.fecha >= %s AND n.fecha < %s")
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sql_params.extend([fecha_inicio, fecha_fin])
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except ValueError:
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flash("Formato de fecha no válido. Use AAAA-MM-DD.", "error")
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fecha_filtro = None
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if conditions: sql_base += " WHERE " + " AND ".join(conditions)
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sql_final = sql_base + " ORDER BY n.fecha DESC NULLS LAST LIMIT 50"
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cursor.execute(sql_final, tuple(sql_params))
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noticias = cursor.fetchall()
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except psycopg2.Error as db_err:
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app.logger.error(f"[DB ERROR] Al leer noticias: {db_err}", exc_info=True)
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flash("Error de base de datos al cargar las noticias.", "error")
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return render_template("noticias.html", noticias=noticias, categorias=categorias, continentes=continentes, paises=paises,
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cat_id=int(cat_id) if cat_id else None, cont_id=int(cont_id) if cont_id else None,
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pais_id=int(pais_id) if pais_id else None, fecha_filtro=fecha_filtro)
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@app.route("/feeds")
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def dashboard():
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stats = {'feeds_totales': 0, 'noticias_totales': 0, 'feeds_caidos': 0}
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try:
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with get_conn() as conn:
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with conn.cursor() as cursor:
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cursor.execute("SELECT COUNT(*) FROM feeds;")
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stats['feeds_totales'] = cursor.fetchone()[0]
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cursor.execute("SELECT COUNT(*) FROM noticias;")
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stats['noticias_totales'] = cursor.fetchone()[0]
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cursor.execute("SELECT COUNT(*) FROM feeds WHERE activo = FALSE;")
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stats['feeds_caidos'] = cursor.fetchone()[0]
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except psycopg2.Error as db_err:
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app.logger.error(f"[DB ERROR] Al calcular estadísticas del dashboard: {db_err}")
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flash("Error al conectar con la base de datos para mostrar el resumen.", "error")
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return render_template("dashboard.html", stats=stats)
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@app.route("/feeds/manage")
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def manage_feeds():
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page = request.args.get('page', 1, type=int)
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per_page = 10
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offset = (page - 1) * per_page
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feeds_list = []
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total_feeds = 0
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try:
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with get_conn() as conn:
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with conn.cursor(cursor_factory=psycopg2.extras.DictCursor) as cursor:
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cursor.execute("SELECT COUNT(*) FROM feeds")
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total_feeds = cursor.fetchone()[0]
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cursor.execute("SELECT * FROM feeds ORDER BY nombre LIMIT %s OFFSET %s", (per_page, offset))
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feeds_list = cursor.fetchall()
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except psycopg2.Error as db_err:
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app.logger.error(f"[DB ERROR] Al obtener lista de feeds: {db_err}")
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flash("Error al obtener la lista de feeds.", "error")
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total_pages = math.ceil(total_feeds / per_page)
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return render_template("feeds_list.html", feeds=feeds_list, page=page, total_pages=total_pages, total_feeds=total_feeds)
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def _get_form_dependencies(cursor):
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cursor.execute("SELECT id, nombre FROM categorias ORDER BY nombre")
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categorias = cursor.fetchall()
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cursor.execute("SELECT id, nombre, continente_id FROM paises ORDER BY nombre")
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paises = cursor.fetchall()
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return categorias, paises
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@app.route("/feeds/add", methods=['GET', 'POST'])
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def add_feed():
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if request.method == 'POST':
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nombre = request.form.get("nombre")
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try:
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with get_conn() as conn:
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with conn.cursor() as cursor:
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cursor.execute(
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"INSERT INTO feeds (nombre, descripcion, url, categoria_id, pais_id, idioma) VALUES (%s, %s, %s, %s, %s, %s)",
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(nombre, request.form.get("descripcion"), request.form.get("url"), request.form.get("categoria_id"), request.form.get("pais_id"), (request.form.get("idioma", "").strip() or None))
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)
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flash(f"Feed '{nombre}' añadido correctamente.", "success")
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except psycopg2.Error as db_err:
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app.logger.error(f"[DB ERROR] Al agregar feed: {db_err}", exc_info=True)
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flash(f"Error al añadir el feed: {db_err}", "error")
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return redirect(url_for("dashboard"))
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categorias, paises = [], []
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try:
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with get_conn() as conn:
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with conn.cursor(cursor_factory=psycopg2.extras.DictCursor) as cursor:
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categorias, paises = _get_form_dependencies(cursor)
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except psycopg2.Error as db_err:
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app.logger.error(f"[DB ERROR] Al cargar formulario para añadir feed: {db_err}")
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flash("No se pudieron cargar las categorías o países.", "error")
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return render_template("add_feed.html", categorias=categorias, paises=paises)
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@app.route("/edit/<int:feed_id>", methods=["GET", "POST"])
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def edit_feed(feed_id):
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feed, categorias, paises = None, [], []
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try:
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with get_conn() as conn:
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with conn.cursor(cursor_factory=psycopg2.extras.DictCursor) as cursor:
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if request.method == "POST":
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idioma = request.form.get("idioma", "").strip() or None
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activo = "activo" in request.form
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cursor.execute(
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"""UPDATE feeds SET nombre=%s, descripcion=%s, url=%s, categoria_id=%s, pais_id=%s, idioma=%s, activo=%s WHERE id=%s""",
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(request.form.get("nombre"), request.form.get("descripcion"), request.form.get("url"), request.form.get("categoria_id"), request.form.get("pais_id"), idioma, activo, feed_id)
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)
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flash("Feed actualizado correctamente.", "success")
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return redirect(url_for("manage_feeds"))
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cursor.execute("SELECT * FROM feeds WHERE id = %s", (feed_id,))
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feed = cursor.fetchone()
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categorias, paises = _get_form_dependencies(cursor)
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except psycopg2.Error as db_err:
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app.logger.error(f"[DB ERROR] Al editar feed: {db_err}", exc_info=True)
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flash(f"Error al editar el feed: {db_err}", "error")
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return redirect(url_for("manage_feeds"))
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if not feed:
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flash("No se encontró el feed solicitado.", "error")
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return redirect(url_for("manage_feeds"))
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return render_template("edit_feed.html", feed=feed, categorias=categorias, paises=paises)
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@app.route("/delete/<int:feed_id>")
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def delete_feed(feed_id):
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try:
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with get_conn() as conn:
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with conn.cursor() as cursor:
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cursor.execute("DELETE FROM feeds WHERE id=%s", (feed_id,))
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flash("Feed eliminado correctamente.", "success")
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except psycopg2.Error as db_err:
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app.logger.error(f"[DB ERROR] Al eliminar feed: {db_err}", exc_info=True)
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flash(f"Error al eliminar el feed: {db_err}", "error")
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return redirect(url_for("manage_feeds"))
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@app.route("/reactivar_feed/<int:feed_id>")
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def reactivar_feed(feed_id):
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try:
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with get_conn() as conn:
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with conn.cursor() as cursor:
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cursor.execute("UPDATE feeds SET activo = TRUE, fallos = 0 WHERE id = %s", (feed_id,))
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flash("Feed reactivado y contador de fallos reseteado.", "success")
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except psycopg2.Error as db_err:
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app.logger.error(f"[DB ERROR] Al reactivar feed: {db_err}", exc_info=True)
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flash(f"Error al reactivar el feed: {db_err}", "error")
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return redirect(url_for("manage_feeds"))
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@app.route("/backup_feeds")
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def backup_feeds():
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try:
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with get_conn() as conn:
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with conn.cursor(cursor_factory=psycopg2.extras.DictCursor) as cursor:
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cursor.execute("""
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SELECT f.id, f.nombre, f.descripcion, f.url, f.categoria_id, c.nombre AS categoria,
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f.pais_id, p.nombre AS pais, f.idioma, f.activo, f.fallos
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FROM feeds f
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LEFT JOIN categorias c ON f.categoria_id = c.id
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LEFT JOIN paises p ON f.pais_id = p.id
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ORDER BY f.id
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""")
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feeds_ = cursor.fetchall()
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if not feeds_:
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flash("No hay feeds para exportar.", "warning")
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return redirect(url_for("dashboard"))
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si = StringIO()
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writer = csv.DictWriter(si, fieldnames=[desc[0] for desc in cursor.description])
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writer.writeheader()
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writer.writerows([dict(row) for row in feeds_])
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output = si.getvalue()
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si.close()
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return Response(output, mimetype="text/csv", headers={"Content-Disposition": "attachment;filename=feeds_backup.csv"})
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except Exception as e:
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app.logger.error(f"[ERROR] Al hacer backup de feeds: {e}", exc_info=True)
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flash("Error al generar el backup.", "error")
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return redirect(url_for("dashboard"))
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@app.route("/backup_noticias")
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def backup_noticias():
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try:
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with get_conn() as conn:
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with conn.cursor(cursor_factory=psycopg2.extras.DictCursor) as cursor:
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cursor.execute("""
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SELECT n.id, n.titulo, n.resumen, n.url, n.fecha, n.imagen_url,
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c.nombre AS categoria, p.nombre AS pais, co.nombre AS continente
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FROM noticias n
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LEFT JOIN categorias c ON n.categoria_id = c.id
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LEFT JOIN paises p ON n.pais_id = p.id
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LEFT JOIN continentes co ON p.continente_id = co.id
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ORDER BY n.fecha DESC
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""")
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noticias = cursor.fetchall()
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if not noticias:
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flash("No hay noticias para exportar.", "warning")
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return redirect(url_for("dashboard"))
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si = StringIO()
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writer = csv.DictWriter(si, fieldnames=[desc[0] for desc in cursor.description])
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writer.writeheader()
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writer.writerows([dict(row) for row in noticias])
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output = si.getvalue()
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si.close()
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return Response(
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output,
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mimetype="text/csv",
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headers={"Content-Disposition": "attachment;filename=noticias_backup.csv"}
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)
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except Exception as e:
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app.logger.error(f"[ERROR] Al hacer backup de noticias: {e}", exc_info=True)
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flash("Error al generar el backup de noticias.", "error")
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return redirect(url_for("dashboard"))
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@app.route("/backup_completo")
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def backup_completo():
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try:
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memory_buffer = BytesIO()
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with zipfile.ZipFile(memory_buffer, 'w', zipfile.ZIP_DEFLATED) as zipf:
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with get_conn() as conn:
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with conn.cursor(cursor_factory=psycopg2.extras.DictCursor) as cursor:
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# Feeds
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cursor.execute("""
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SELECT f.id, f.nombre, f.descripcion, f.url, f.categoria_id, c.nombre AS categoria,
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f.pais_id, p.nombre AS pais, f.idioma, f.activo, f.fallos
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FROM feeds f
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LEFT JOIN categorias c ON f.categoria_id = c.id
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LEFT JOIN paises p ON f.pais_id = p.id
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ORDER BY f.id
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""")
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feeds_data = cursor.fetchall()
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if feeds_data:
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feeds_si = StringIO()
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writer = csv.DictWriter(feeds_si, fieldnames=[desc[0] for desc in cursor.description])
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writer.writeheader()
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writer.writerows([dict(row) for row in feeds_data])
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zipf.writestr("feeds.csv", feeds_si.getvalue())
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feeds_si.close()
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# Noticias
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cursor.execute("""
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SELECT n.id, n.titulo, n.resumen, n.url, n.fecha, n.imagen_url,
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c.nombre AS categoria, p.nombre AS pais, co.nombre AS continente
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FROM noticias n
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LEFT JOIN categorias c ON n.categoria_id = c.id
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LEFT JOIN paises p ON n.pais_id = p.id
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LEFT JOIN continentes co ON p.continente_id = co.id
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ORDER BY n.fecha DESC
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""")
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noticias_data = cursor.fetchall()
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if noticias_data:
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noticias_si = StringIO()
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writer = csv.DictWriter(noticias_si, fieldnames=[desc[0] for desc in cursor.description])
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writer.writeheader()
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writer.writerows([dict(row) for row in noticias_data])
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zipf.writestr("noticias.csv", noticias_si.getvalue())
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noticias_si.close()
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memory_buffer.seek(0)
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return Response(
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memory_buffer,
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mimetype="application/zip",
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headers={"Content-Disposition": "attachment;filename=rss_backup_completo.zip"}
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)
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except Exception as e:
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app.logger.error(f"[ERROR] Al hacer backup completo: {e}", exc_info=True)
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flash("Error al generar el backup completo.", "error")
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return redirect(url_for("dashboard"))
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@app.route("/restore_feeds", methods=["GET", "POST"])
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def restore_feeds():
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if request.method == "POST":
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file = request.files.get("file")
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if not file or not file.filename.endswith(".csv"):
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flash("Archivo no válido. Por favor, sube un archivo .csv.", "error")
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return redirect(url_for("restore_feeds"))
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try:
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file_stream = StringIO(file.read().decode("utf-8"))
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reader = csv.DictReader(file_stream)
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rows = list(reader)
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n_ok, n_err = 0, 0
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with get_conn() as conn:
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with conn.cursor() as cursor:
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for row in rows:
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try:
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activo_val = str(row.get("activo", "")).strip().lower()
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activo = activo_val in ["1", "true", "t", "yes", "on"]
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# --- ESTA ES LA PARTE CORREGIDA ---
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cursor.execute(
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"""
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INSERT INTO feeds (id, nombre, descripcion, url, categoria_id, pais_id, idioma, activo, fallos)
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VALUES (%(id)s, %(nombre)s, %(descripcion)s, %(url)s, %(categoria_id)s, %(pais_id)s, %(idioma)s, %(activo)s, %(fallos)s)
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ON CONFLICT (id) DO UPDATE SET
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nombre = EXCLUDED.nombre, descripcion = EXCLUDED.descripcion, url = EXCLUDED.url,
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categoria_id = EXCLUDED.categoria_id, pais_id = EXCLUDED.pais_id, idioma = EXCLUDED.idioma,
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activo = EXCLUDED.activo, fallos = EXCLUDED.fallos;
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""",
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{
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"id": int(row.get("id")), "nombre": row.get("nombre"), "descripcion": row.get("descripcion") or "",
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"url": row.get("url"), "categoria_id": int(row["categoria_id"]) if row.get("categoria_id") else None,
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"pais_id": int(row["pais_id"]) if row.get("pais_id") else None,
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"idioma": row.get("idioma") or None, # La clave aquí es 'idioma'
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"activo": activo, "fallos": int(row.get("fallos", 0)),
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}
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)
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n_ok += 1
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except Exception as e:
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n_err += 1
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app.logger.error(f"Error procesando fila del CSV: {row} - Error: {e}")
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flash(f"Restauración completada. Feeds procesados: {n_ok}. Errores: {n_err}.", "success" if n_err == 0 else "warning")
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except Exception as e:
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app.logger.error(f"Error al restaurar feeds desde CSV: {e}", exc_info=True)
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flash(f"Ocurrió un error general al procesar el archivo: {e}", "error")
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return redirect(url_for("dashboard"))
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return render_template("restore_feeds.html")
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def sumar_fallo_feed(cursor, feed_id):
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cursor.execute("UPDATE feeds SET fallos = fallos + 1 WHERE id = %s RETURNING fallos", (feed_id,))
|
|
fallos = cursor.fetchone()[0]
|
|
if fallos >= MAX_FALLOS:
|
|
cursor.execute("UPDATE feeds SET activo = FALSE WHERE id = %s", (feed_id,))
|
|
return fallos
|
|
|
|
def resetear_fallos_feed(cursor, feed_id):
|
|
cursor.execute("UPDATE feeds SET fallos = 0 WHERE id = %s", (feed_id,))
|
|
|
|
def fetch_and_store():
|
|
with app.app_context():
|
|
app.logger.info("Iniciando ciclo de actualización de feeds...")
|
|
try:
|
|
with get_conn() as conn:
|
|
with conn.cursor(cursor_factory=psycopg2.extras.DictCursor) as cursor:
|
|
cursor.execute("SELECT id, url, categoria_id, pais_id FROM feeds WHERE activo = TRUE")
|
|
feeds_to_process = cursor.fetchall()
|
|
if not feeds_to_process:
|
|
app.logger.info("No hay feeds activos para procesar.")
|
|
return
|
|
|
|
for feed in feeds_to_process:
|
|
try:
|
|
app.logger.info(f"Procesando feed: {feed['url']}")
|
|
parsed = feedparser.parse(feed['url'])
|
|
if getattr(parsed, "bozo", False):
|
|
app.logger.warning(f"[BOZO] Feed mal formado: {feed['url']} - Excepción: {parsed.bozo_exception}")
|
|
sumar_fallo_feed(cursor, feed['id'])
|
|
continue
|
|
|
|
resetear_fallos_feed(cursor, feed['id'])
|
|
|
|
for entry in parsed.entries:
|
|
try:
|
|
link = entry.get("link")
|
|
if not link: continue
|
|
noticia_id = hashlib.md5(link.encode()).hexdigest()
|
|
titulo = entry.get("title", "")
|
|
resumen = entry.get("summary", "")
|
|
|
|
imagen_url = ""
|
|
if "media_content" in entry and entry.media_content:
|
|
imagen_url = entry.media_content[0].get("url", "")
|
|
elif "<img" in resumen:
|
|
img_search = re.search(r'src="([^"]+)"', resumen)
|
|
if img_search: imagen_url = img_search.group(1)
|
|
|
|
fecha_publicacion = None
|
|
if "published_parsed" in entry and entry.published_parsed: fecha_publicacion = datetime(*entry.published_parsed[:6])
|
|
elif "updated_parsed" in entry and entry.updated_parsed: fecha_publicacion = datetime(*entry.updated_parsed[:6])
|
|
|
|
cursor.execute(
|
|
"INSERT INTO noticias (id, titulo, resumen, url, fecha, imagen_url, categoria_id, pais_id) VALUES (%s, %s, %s, %s, %s, %s, %s, %s) ON CONFLICT (id) DO NOTHING",
|
|
(noticia_id, titulo, resumen, link, fecha_publicacion, imagen_url, feed['categoria_id'], feed['pais_id'])
|
|
)
|
|
except Exception as entry_err:
|
|
app.logger.error(f"Error en entrada de feed {feed['url']}: {entry_err}")
|
|
except Exception as e:
|
|
app.logger.error(f"[PARSE ERROR] En feed {feed['url']}: {e}")
|
|
sumar_fallo_feed(cursor, feed['id'])
|
|
app.logger.info("Ciclo de feeds completado.")
|
|
except psycopg2.Error as db_err:
|
|
app.logger.error(f"[DB ERROR] Fallo en ciclo de actualización: {db_err}")
|
|
|
|
scheduler = BackgroundScheduler(daemon=True)
|
|
run_time = datetime.now() + timedelta(seconds=20)
|
|
scheduler.add_job(fetch_and_store, "interval", minutes=15, id="rss_job", next_run_time=run_time)
|
|
scheduler.start()
|
|
atexit.register(lambda: scheduler.shutdown())
|
|
app.logger.info("Scheduler configurado. Primera ejecución en 20 segundos.")
|
|
|
|
if __name__ == "__main__":
|
|
app.run(host="0.0.0.0", port=5000, debug=True, use_reloader=False)
|