diff --git a/modules/network_tools.py b/modules/network_tools.py new file mode 100644 index 0000000..f1a9edc --- /dev/null +++ b/modules/network_tools.py @@ -0,0 +1,39 @@ +import subprocess +import re + +def execute_command_streaming(method, target): + commands = { + 'ping': ['ping', '-c', '4', target], + 'ping6': ['ping', '-c', '4', target], + 'mtr': ['mtr', '-w', '-r', '-c', '10', target], + 'mtr6': ['mtr', '-w', '-r', '-c', '10', target], + 'traceroute': ['traceroute', '-n', target], + 'traceroute6': ['traceroute', '-n', target], + } + + if method not in commands: + yield f"Error: Invalid method '{method}'." + return + + command = commands[method] + + try: + proc = subprocess.Popen( + command, + stdout=subprocess.PIPE, + stderr=subprocess.STDOUT, + text=True, + bufsize=1, + universal_newlines=True + ) + + for line in iter(proc.stdout.readline, ''): + yield line + + proc.stdout.close() + proc.wait() + + except FileNotFoundError: + yield f"Error: Command '{command[0]}' not found. Is it installed on the server?" + except Exception as e: + yield f"An unexpected error occurred: {e}" \ No newline at end of file diff --git a/modules/visual_route.py b/modules/visual_route.py new file mode 100644 index 0000000..599ee1c --- /dev/null +++ b/modules/visual_route.py @@ -0,0 +1,201 @@ +import requests +import re +import json +import socket +import textwrap +import os +import ipaddress +from dotenv import load_dotenv + +load_dotenv() + +TRANSIT_COMMUNITIES = set(filter(None, os.getenv('BGP_COMMUNITIES_TRANSIT', '').split(','))) +IX_COMMUNITIES = set(filter(None, os.getenv('BGP_COMMUNITIES_IX', '').split(','))) +CUSTOMER_COMMUNITIES = set(filter(None, os.getenv('BGP_COMMUNITIES_CUSTOMER', '').split(','))) + +API_URL = os.getenv('BGP_API_URL', 'http://127.0.0.1:5000/bgp-route/lookup') +AS_NAME_CACHE = {} +AS_NAME_WRAP_WIDTH = 25 +ROUTER_NAME = os.getenv('BGP_VIS_ROUTER_NAME', 'My Router') +MAX_IP_CIDR_LENGTH = 45 + +def _bulk_get_as_names(asn_numbers: list[str]): + lookup_list = [asn for asn in asn_numbers if asn not in AS_NAME_CACHE] + if not lookup_list: return + query = "begin\n" + "\n".join(f"AS{asn}" for asn in lookup_list) + "\nend\n" + try: + with socket.create_connection(('bgp.tools', 43), timeout=10) as s: + s.sendall(query.encode('utf-8')) + response_data = b"" + while True: + chunk = s.recv(4096) + if not chunk: break + response_data += chunk + response_str = response_data.decode('utf-8') + for line in response_str.splitlines(): + parts = line.split('|') + if len(parts) > 1: + asn_num_str = parts[0].strip() + as_name = parts[-1].strip() + if asn_num_str.isdigit(): AS_NAME_CACHE[asn_num_str] = as_name + except (socket.error, socket.timeout) as e: + print(f"Bulk AS name lookup failed: {e}") + for asn in lookup_list: + if asn not in AS_NAME_CACHE: AS_NAME_CACHE[asn] = "" + +def _get_bgp_data(ip_address: str, ip_version: str) -> str | None: + payload = {"ip_version": ip_version, "bgprouteprefix": ip_address} + headers = {"Content-Type": "application/json"} + try: + response = requests.post(API_URL, json=payload, headers=headers, timeout=10) + response.raise_for_status() + data = response.json() + if data.get("success") and data.get("data"): return data["data"] + else: return None + except requests.exceptions.RequestException: return None + +def _parse_bgp_paths_to_graph(bgp_data: str) -> dict: + prefix_match = re.search(r"BGP routing table entry for ([\w:./-]+)", bgp_data) + prefix = prefix_match.group(1) if prefix_match else "Unknown Prefix" + lines = bgp_data.split('\n') + + path_blocks = [] + try: + paths_header_index = next(i for i, line in enumerate(lines) if "Paths:" in line) + current_block = [] + for line in lines[paths_header_index + 1:]: + stripped_line = line.strip() + if not stripped_line: continue + + is_new_path_line = False + if line.startswith(' ') and not line.startswith(' '): + first_word = stripped_line.split(' ')[0] + + cleaned_first_word = first_word.replace(',', '') + if cleaned_first_word.isdigit() or stripped_line == "Local": + is_new_path_line = True + + if is_new_path_line: + if current_block: path_blocks.append(current_block) + current_block = [line] + elif current_block: + current_block.append(line) + + if current_block: path_blocks.append(current_block) + except StopIteration: + return {"nodes": [], "edges": []} + + all_paths_info, best_path_info = [], None + for block in path_blocks: + block_text_full = "\n".join(block) + clean_lines = [line for line in block if not line.strip().startswith("AddPath ID:")] + block_text_for_check = "\n".join(clean_lines) + is_best = bool(re.search(r'\bbest\b', block_text_for_check, re.IGNORECASE)) + is_multipath = 'multipath' in block_text_for_check.lower() + + path_line = block[0].strip() + path_asns_raw = [] + if path_line != "Local": + for part in path_line.split(' '): + clean_part = part.replace(',', '').strip() + if clean_part.isdigit(): + path_asns_raw.append(clean_part) + else: + break + + path_asns = path_asns_raw + + local_pref_match = re.search(r'localpref (\d+)', block_text_full) + local_pref = int(local_pref_match.group(1)) if local_pref_match else None + next_hop_match = re.search(r'^\s*([\da-fA-F:.]+)\s+from', block_text_full, re.MULTILINE) + next_hop = next_hop_match.group(1) if next_hop_match else None + community_match = re.search(r'Large Community: ([\d:]+)', block_text_full) + community = community_match.group(1) if community_match else None + category = 'other' + if community: + if community in TRANSIT_COMMUNITIES: category = 'transit' + elif community in IX_COMMUNITIES: category = 'ix' + elif community in CUSTOMER_COMMUNITIES: category = 'customer' + path_info = {"asns": path_asns, "local_pref": local_pref, "next_hop": next_hop, "is_best": is_best, "is_multipath": is_multipath, "community": community, "category": category} + all_paths_info.append(path_info) + if is_best and not best_path_info: + best_path_info = path_info + + all_asns_in_graph = {asn for path in all_paths_info for asn in path['asns']} + if all_asns_in_graph: + _bulk_get_as_names(list(all_asns_in_graph)) + + ordered_paths = sorted(all_paths_info, key=lambda p: (not p['is_best'], not p['is_multipath'])) + + nodes, edges = [], [] + X_SEPARATION, Y_SEPARATION = 300, 200 + max_path_len = max((len(p['asns']) for p in ordered_paths if p['asns']), default=0) + + if not ordered_paths: + return {"nodes": [], "edges": []} + + nodes.append({"id": ROUTER_NAME, "label": f"{ROUTER_NAME}", "color": '#FADBD8', "x": 0, "y": 0, "fixed": True, "path_category": "global", "is_active": True}) + nodes.append({"id": prefix, "label": f"{prefix}", "color": '#FADBD8', "x": (max_path_len + 1) * X_SEPARATION, "y": 0, "fixed": True, "path_category": "global", "is_active": True}) + + y_pos_counter_up, y_pos_counter_down = 1, 1 + for i, path_info in enumerate(ordered_paths): + lane_y = 0 + if i > 0: + if y_pos_counter_up <= y_pos_counter_down: lane_y = y_pos_counter_up * Y_SEPARATION; y_pos_counter_up += 1 + else: lane_y = -y_pos_counter_down * Y_SEPARATION; y_pos_counter_down += 1 + + style, is_active_path = {}, False + if path_info['is_best']: + style = {"node_color": '#FADBD8', "edge_color": '#C0392B', "width": 3, "dashes": False, "path_type": " (best)"}; is_active_path = True + elif path_info['is_multipath']: + style = {"node_color": '#FDEBD0', "edge_color": '#F39C12', "width": 2, "dashes": False, "path_type": " (multipath)"}; is_active_path = True + else: + style = {"node_color": '#D6DBDF', "edge_color": '#2C3E50', "width": 1, "dashes": True, "path_type": ""}; is_active_path = False + + path_node_ids = [] + for j, asn in enumerate(path_info['asns']): + unique_node_id = f"AS{asn}-{i}-{j}" + path_node_ids.append(unique_node_id) + as_name = AS_NAME_CACHE.get(asn, ""); wrapped_name = '\n'.join(textwrap.wrap(as_name, width=AS_NAME_WRAP_WIDTH)) if as_name else "" + base_label = f"AS{asn}" + if j == 0 and path_info['local_pref'] is not None: base_label += f" (LP: {path_info['local_pref']})" + label = f"{base_label}\n{wrapped_name}" + if j == 0 and path_info['next_hop']: label += f"\nNext Hop: {path_info['next_hop']}{style['path_type']}" + nodes.append({"id": unique_node_id, "label": label, "color": style['node_color'], "x": (j + 1) * X_SEPARATION, "y": lane_y, "fixed": True, "path_category": path_info['category'], "is_active": is_active_path}) + + full_chain = [ROUTER_NAME] + path_node_ids + [prefix] + smooth_config = {"enabled": True, "type": "cubicBezier", "forceDirection": "horizontal", "roundness": 0.85} + for j in range(len(full_chain) - 1): + edges.append({"from": full_chain[j], "to": full_chain[j+1], "color": style['edge_color'], "width": style['width'], "dashes": style['dashes'], "path_category": path_info['category'], "is_active": is_active_path, "smooth": smooth_config}) + + return {"nodes": nodes, "edges": edges, "path_count": len(ordered_paths)} + + +def generate_visual_route_graph(ip_address_str: str) -> dict: + if not ip_address_str: + return {"error": "An IP address or prefix is required."} + + if len(ip_address_str) > MAX_IP_CIDR_LENGTH: + return {"error": f"Input exceeds maximum length of {MAX_IP_CIDR_LENGTH} characters."} + + address_to_lookup, ip_version = "", "" + try: + if '/' in ip_address_str: + net_obj = ipaddress.ip_network(ip_address_str, strict=False) + ip_version, address_to_lookup = f"ipv{net_obj.version}", net_obj.with_prefixlen + else: + ip_obj = ipaddress.ip_address(ip_address_str) + ip_version, address_to_lookup = f"ipv{ip_obj.version}", str(ip_obj) + except ValueError: + return {"error": f"Invalid input '{ip_address_str}'. Please provide a valid IPv4/IPv6 address or prefix."} + + bgp_data = _get_bgp_data(address_to_lookup, ip_version) + if not bgp_data: + return {"not_found": True, "target": address_to_lookup} + + graph_data = _parse_bgp_paths_to_graph(bgp_data) + + if not graph_data.get("nodes"): + return {"not_found": True, "target": address_to_lookup} + + return graph_data \ No newline at end of file