import os
import sys
from flask import Flask, render_template_string, jsonify
import markdown
import time
app = Flask(__name__)
# Cache storage: filepath -> (mtime, html_content)
_content_cache = {}
# Constants for paths to avoid re-calculating on every request
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
README_PATH = os.path.join(BASE_DIR, '..', 'README.md')
VERIFICATION_PATH = os.path.join(BASE_DIR, '..', 'VERIFICATION.md')
def get_cached_markdown(filepath):
"""
Returns the markdown content of a file converted to HTML, using a cache
that invalidates based on file modification time.
Optimization: Uses os.stat() to get mtime and check existence in one syscall.
"""
try:
# Optimization: os.stat gets existence and mtime in one call
# removing the need for separate os.path.exists() check
stat_result = os.stat(filepath)
except OSError:
return None
try:
mtime = stat_result.st_mtime
if filepath in _content_cache:
cached_mtime, cached_html = _content_cache[filepath]
if cached_mtime == mtime:
return cached_html
# Cache miss or file changed
with open(filepath, 'r', encoding='utf-8') as f:
content = f.read()
html_content = markdown.markdown(content)
_content_cache[filepath] = (mtime, html_content)
return html_content
except Exception as e:
print(f"Error reading/converting {filepath}: {e}")
return None
@app.after_request
def add_security_headers(response):
"""Add security headers to the response."""
# Content Security Policy
# - default-src 'self': Only allow resources from same origin by default
# - script-src 'self': Only allow scripts from same origin (blocks inline scripts & external)
# - style-src 'self' 'unsafe-inline': Allow inline styles (template uses
System Status ONLINE
MQL5 Trading Automation is running.
{{ html_verification|safe }}
Project Documentation
{{ html_readme|safe }}