homedocs/app/routes/ipam.py
2025-04-03 16:58:01 +02:00

357 lines
11 KiB
Python

from flask import Blueprint, render_template, redirect, url_for, request, flash, jsonify
from flask_login import login_required, current_user
from app.core.models import Subnet, Server, App, Location
from app.core.extensions import db
from app.scripts.ip_scanner import scan
import ipaddress
from datetime import datetime
import json
bp = Blueprint("ipam", __name__, url_prefix="/ipam")
@bp.route("/")
@login_required
def ipam_home():
"""Main IPAM dashboard"""
subnets = Subnet.query.all()
# Calculate usage for each subnet
for subnet in subnets:
network = ipaddress.ip_network(subnet.cidr, strict=False)
max_hosts = (
network.num_addresses - 2
if network.prefixlen < 31
else network.num_addresses
)
used_count = Server.query.filter_by(subnet_id=subnet.id).count()
subnet.usage_percent = (used_count / max_hosts) * 100 if max_hosts > 0 else 0
return render_template(
"ipam/index.html", title="IPAM Dashboard", subnets=subnets, now=datetime.now()
)
@bp.route("/subnet/new", methods=["GET", "POST"])
@login_required
def subnet_new():
"""Create a new subnet"""
# Get all locations for the dropdown
locations = Location.query.filter_by(user_id=current_user.id).all()
if request.method == "POST":
cidr = request.form.get("cidr")
location_id = request.form.get("location_id")
auto_scan = request.form.get("auto_scan") == "on"
# Basic validation
if not cidr or not location_id:
flash("CIDR notation and location are required", "danger")
return render_template("ipam/subnet_form.html", title="New Subnet", locations=locations)
# Create new subnet
subnet = Subnet(
cidr=cidr,
location_id=location_id,
user_id=current_user.id,
active_hosts=json.dumps([]), # Convert empty list to JSON string
last_scanned=None,
auto_scan=auto_scan,
)
db.session.add(subnet)
db.session.commit()
flash("Subnet created successfully", "success")
return redirect(url_for("ipam.subnet_view", subnet_id=subnet.id))
return render_template("ipam/subnet_form.html", title="New Subnet", locations=locations)
@bp.route("/subnet/<int:subnet_id>")
@login_required
def subnet_view(subnet_id):
"""View a subnet and all its hosts"""
subnet = Subnet.query.get_or_404(subnet_id)
# Get servers in this subnet
servers = Server.query.filter_by(subnet_id=subnet_id).all()
# Get applications in this subnet
subnet_apps = []
for server in servers:
apps = App.query.filter_by(server_id=server.id).all()
subnet_apps.extend(apps)
# Calculate usage statistics
network = ipaddress.ip_network(subnet.cidr, strict=False)
total_ips = network.num_addresses - 2 # Subtract network and broadcast addresses
used_ips = Server.query.filter_by(subnet_id=subnet_id).count()
return render_template(
"ipam/subnet_view.html",
title=f"Subnet {subnet.cidr}",
subnet=subnet,
servers=servers,
subnet_apps=subnet_apps,
total_ips=total_ips,
used_ips=used_ips,
)
@bp.route("/subnet/<int:subnet_id>/edit", methods=["GET", "POST"])
@login_required
def subnet_edit(subnet_id):
"""Edit a subnet"""
subnet = Subnet.query.get_or_404(subnet_id)
if request.method == "POST":
cidr = request.form.get("cidr")
location = request.form.get("location")
auto_scan = request.form.get("auto_scan") == "on"
# Validate inputs
if not all([cidr, location]):
flash("All fields are required", "danger")
return render_template(
"ipam/subnet_form.html",
title="Edit Subnet",
subnet=subnet,
edit_mode=True,
)
# Validate CIDR format
try:
ipaddress.ip_network(cidr, strict=False)
except ValueError:
flash("Invalid CIDR format", "danger")
return render_template(
"ipam/subnet_form.html",
title="Edit Subnet",
subnet=subnet,
edit_mode=True,
)
# Update subnet
subnet.cidr = cidr
subnet.location = location
subnet.auto_scan = auto_scan
try:
db.session.commit()
flash(f"Subnet {cidr} has been updated", "success")
return redirect(url_for("ipam.subnet_view", subnet_id=subnet.id))
except Exception as e:
db.session.rollback()
flash(f"Error updating subnet: {str(e)}", "danger")
return render_template(
"ipam/subnet_form.html", title="Edit Subnet", subnet=subnet, edit_mode=True
)
@bp.route("/subnet/<int:subnet_id>/delete", methods=["POST"])
@login_required
def subnet_delete(subnet_id):
"""Delete a subnet"""
subnet = Subnet.query.get_or_404(subnet_id)
# Check if subnet has servers
servers_count = Server.query.filter_by(subnet_id=subnet_id).count()
if servers_count > 0:
flash(
f"Cannot delete subnet {subnet.cidr}. It has {servers_count} servers assigned.",
"danger",
)
return redirect(url_for("ipam.subnet_view", subnet_id=subnet_id))
db.session.delete(subnet)
db.session.commit()
flash(f"Subnet {subnet.cidr} has been deleted", "success")
return redirect(url_for("ipam.ipam_home"))
@bp.route("/subnet/<int:subnet_id>/scan", methods=["POST"])
@login_required
def subnet_scan(subnet_id):
"""Manually scan a subnet"""
subnet = Subnet.query.get_or_404(subnet_id)
try:
# Call the scan function with manual_trigger=True
scan(subnet, manual_trigger=True)
db.session.commit()
flash(f"Scan completed for subnet {subnet.cidr}", "success")
except Exception as e:
db.session.rollback()
flash(f"Error scanning subnet: {str(e)}", "danger")
return redirect(url_for("ipam.subnet_view", subnet_id=subnet_id))
@bp.route("/subnet/<int:subnet_id>/force-delete", methods=["POST"])
@login_required
def subnet_force_delete(subnet_id):
"""Force delete a subnet and all its related servers and applications"""
subnet = Subnet.query.get_or_404(subnet_id)
try:
# Get all servers to be deleted for reporting
servers = Server.query.filter_by(subnet_id=subnet_id).all()
server_count = len(servers)
# This will cascade delete all related servers and their applications
db.session.delete(subnet)
db.session.commit()
flash(
f"Subnet {subnet.cidr} and {server_count} related servers were deleted successfully",
"success",
)
return redirect(url_for("dashboard.ipam_home"))
except Exception as e:
db.session.rollback()
flash(f"Error deleting subnet: {str(e)}", "danger")
return redirect(url_for("dashboard.subnet_view", subnet_id=subnet_id))
@bp.route("/subnet/create-ajax", methods=["POST"])
@login_required
def subnet_create_ajax():
"""Create a subnet via AJAX"""
data = request.json
if not data:
return jsonify({"success": False, "error": "No data provided"})
cidr = data.get("cidr")
location = data.get("location")
auto_scan = data.get("auto_scan", False)
if not cidr or not location:
return jsonify({"success": False, "error": "CIDR and location are required"})
# Validate CIDR
try:
network = ipaddress.ip_network(cidr, strict=False)
except ValueError as e:
return jsonify({"success": False, "error": f"Invalid CIDR: {str(e)}"})
# Create subnet
subnet = Subnet(
cidr=cidr, location=location, auto_scan=auto_scan, active_hosts=json.dumps([])
)
try:
db.session.add(subnet)
db.session.commit()
return jsonify(
{
"success": True,
"subnet_id": subnet.id,
"cidr": subnet.cidr,
"location": subnet.location,
}
)
except Exception as e:
db.session.rollback()
return jsonify({"success": False, "error": str(e)})
@bp.route("/location/<int:location_id>")
@login_required
def location_overview(location_id):
"""View all subnets and servers in a specific location"""
# Get the location (ensure it belongs to the current user)
location = Location.query.filter_by(id=location_id, user_id=current_user.id).first_or_404()
# Create a hierarchical structure
hierarchy = {
'locations': {
location.name: {
'id': location.id,
'description': location.description,
'subnets': [],
'standalone_servers': []
}
}
}
# Organize subnets and their servers
for subnet in location.subnets:
subnet_data = {
'id': subnet.id,
'cidr': subnet.cidr,
'servers': []
}
for server in subnet.servers:
server_data = {
'id': server.id,
'hostname': server.hostname,
'ip_address': server.ip_address,
'description': server.description,
'apps': []
}
for app in server.apps:
app_data = {
'id': app.id,
'name': app.name,
'url': app.url,
'ports': []
}
for port in app.ports:
port_data = {
'id': port.id,
'number': port.port_number,
'protocol': port.protocol,
'description': port.description
}
app_data['ports'].append(port_data)
server_data['apps'].append(app_data)
subnet_data['servers'].append(server_data)
hierarchy['locations'][location.name]['subnets'].append(subnet_data)
# Add standalone servers
for server in location.standalone_servers:
server_data = {
'id': server.id,
'hostname': server.hostname,
'ip_address': server.ip_address,
'description': server.description,
'apps': []
}
for app in server.apps:
app_data = {
'id': app.id,
'name': app.name,
'url': app.url,
'ports': []
}
for port in app.ports:
port_data = {
'id': port.id,
'number': port.port_number,
'protocol': port.protocol,
'description': port.description
}
app_data['ports'].append(port_data)
server_data['apps'].append(app_data)
hierarchy['locations'][location.name]['standalone_servers'].append(server_data)
return render_template(
"ipam/location_overview.html",
title=f"{location.name} Overview",
hierarchy=hierarchy,
location=location
)