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Mateusz Gruszczyński
2025-11-01 20:12:32 +01:00
parent ed1f91998d
commit 52935f9d92
4 changed files with 235 additions and 146 deletions
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293
utils/haproxy_config.py
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@@ -1,151 +1,174 @@
import os
HAPROXY_CFG = '/etc/haproxy/haproxy.cfg'
def is_frontend_exist(frontend_name, frontend_ip, frontend_port):
with open('/etc/haproxy/haproxy.cfg', 'r') as haproxy_cfg:
frontend_found = False
for line in haproxy_cfg:
if line.strip().startswith('frontend'):
_, existing_frontend_name = line.strip().split(' ', 1)
if existing_frontend_name.strip() == frontend_name:
frontend_found = True
else:
frontend_found = False
elif frontend_found and line.strip().startswith('bind'):
_, bind_info = line.strip().split(' ', 1)
existing_ip, existing_port = bind_info.split(':', 1)
if existing_ip.strip() == frontend_ip and existing_port.strip() == frontend_port:
return True
"""Check if frontend with given name, IP and port already exists"""
if not os.path.exists(HAPROXY_CFG):
return False
try:
with open(HAPROXY_CFG, 'r') as haproxy_cfg:
frontend_found = False
for line in haproxy_cfg:
if line.strip().startswith('frontend'):
_, existing_frontend_name = line.strip().split(' ', 1)
if existing_frontend_name.strip() == frontend_name:
frontend_found = True
else:
frontend_found = False
elif frontend_found and line.strip().startswith('bind'):
_, bind_info = line.strip().split(' ', 1)
existing_ip, existing_port = bind_info.split(':', 1)
if existing_ip.strip() == frontend_ip and existing_port.strip() == frontend_port:
return True
except Exception as e:
print(f"[HAPROXY_CONFIG] Error checking frontend: {e}", flush=True)
return False
def is_backend_exist(backend_name):
with open('/etc/haproxy/haproxy.cfg', 'r') as haproxy_cfg:
for line in haproxy_cfg:
line = line.strip()
if line.startswith('backend') and not line.startswith('#'):
parts = line.split()
if len(parts) >= 2 and parts[1] == backend_name:
return True
"""Check if backend with given name already exists"""
if not os.path.exists(HAPROXY_CFG):
return False
try:
with open(HAPROXY_CFG, 'r') as haproxy_cfg:
for line in haproxy_cfg:
line = line.strip()
if line.startswith('backend') and not line.startswith('#'):
parts = line.split()
if len(parts) >= 2 and parts[1] == backend_name:
return True
except Exception as e:
print(f"[HAPROXY_CONFIG] Error checking backend: {e}", flush=True)
return False
def update_haproxy_config(frontend_name, frontend_ip, frontend_port, lb_method, protocol, backend_name, backend_servers, health_check, health_check_tcp, health_check_link, sticky_session, add_header, header_name, header_value, sticky_session_type, is_acl, acl_name, acl_action, acl_backend_name, use_ssl, ssl_cert_path, https_redirect, is_dos, ban_duration, limit_requests, forward_for, is_forbidden_path, forbidden_name, allowed_ip, forbidden_path, sql_injection_check, is_xss, is_remote_upload, add_path_based, redirect_domain_name, root_redirect, redirect_to, is_webshells):
if is_backend_exist(backend_name):
return f"Backend {backend_name} already exists. Cannot add duplicate."
with open('/etc/haproxy/haproxy.cfg', 'a') as haproxy_cfg:
haproxy_cfg.write(f"\nfrontend {frontend_name}\n")
if is_frontend_exist(frontend_name, frontend_ip, frontend_port):
return "Frontend or Port already exists. Cannot add duplicate."
haproxy_cfg.write(f" bind {frontend_ip}:{frontend_port}")
if use_ssl:
haproxy_cfg.write(f" ssl crt {ssl_cert_path}\n")
if https_redirect:
haproxy_cfg.write(f" redirect scheme https code 301 if !{{ ssl_fc }}")
haproxy_cfg.write("\n")
if forward_for:
haproxy_cfg.write(f" option forwardfor\n")
haproxy_cfg.write(f" mode {protocol}\n")
haproxy_cfg.write(f" balance {lb_method}\n")
if is_dos:
haproxy_cfg.write(f" stick-table type ip size 1m expire {ban_duration} store http_req_rate(1m)\n")
haproxy_cfg.write(f" http-request track-sc0 src\n")
haproxy_cfg.write(f" acl abuse sc_http_req_rate(0) gt {limit_requests}\n")
haproxy_cfg.write(f" http-request silent-drop if abuse\n")
if sql_injection_check:
haproxy_cfg.write(f" acl is_sql_injection urlp_reg -i (union|select|insert|update|delete|drop|@@|1=1|`1)\n")
haproxy_cfg.write(f" acl is_long_uri path_len gt 400\n")
haproxy_cfg.write(f" acl semicolon_path path_reg -i ^.*;.*\n")
haproxy_cfg.write(r" acl is_sql_injection2 urlp_reg -i (;|substring|extract|union\s+all|order\s+by)\s+(\d+|--\+)" + "\n")
haproxy_cfg.write(f" http-request deny if is_sql_injection or is_long_uri or semicolon_path or is_sql_injection2\n")
if is_xss:
haproxy_cfg.write(f" acl is_xss_attack urlp_reg -i (<|>|script|alert|onerror|onload|javascript)\n")
haproxy_cfg.write(f" acl is_xss_attack_2 urlp_reg -i (<\s*script\s*|javascript:|<\s*img\s*src\s*=|<\s*a\s*href\s*=|<\s*iframe\s*src\s*=|\bon\w+\s*=|<\s*input\s*[^>]*\s*value\s*=|<\s*form\s*action\s*=|<\s*svg\s*on\w+\s*=)\n")
haproxy_cfg.write(f" acl is_xss_attack_hdr hdr_reg(Cookie|Referer|User-Agent) -i (<|>|script|alert|onerror|onload|javascript)\n")
haproxy_cfg.write(" acl is_xss_cookie hdr_beg(Cookie) -i \"<script\" \"javascript:\" \"on\" \"alert(\" \"iframe\" \"onload\" \"onerror\" \"onclick\" \"onmouseover\"\n")
haproxy_cfg.write(f" http-request deny if is_xss_attack or is_xss_attack_hdr or is_xss_attack_2 or is_xss_cookie\n")
if is_remote_upload:
haproxy_cfg.write(f" acl is_put_request method PUT\n")
haproxy_cfg.write(f" http-request deny if is_put_request\n")
if is_acl:
haproxy_cfg.write(f" acl {acl_name} {acl_action}\n")
haproxy_cfg.write(f" use_backend {acl_backend_name} if {acl_name}\n")
if is_forbidden_path:
haproxy_cfg.write(f" acl {forbidden_name} src {allowed_ip}\n")
haproxy_cfg.write(f" http-request deny if !{forbidden_name} {{ path_beg {forbidden_path} }}\n")
if add_path_based:
haproxy_cfg.write(f" acl is_test_com hdr(host) -i {redirect_domain_name}\n")
haproxy_cfg.write(f" acl is_root path {root_redirect}\n")
haproxy_cfg.write(f" http-request redirect location {redirect_to} if is_test_com or is_root\n")
if is_webshells:
haproxy_cfg.write(f" option http-buffer-request\n")
haproxy_cfg.write(f" acl is_webshell urlp_reg(payload,eval|system|passthru|shell_exec|exec|popen|proc_open|pcntl_exec)\n")
haproxy_cfg.write(f" acl is_potential_webshell urlp_reg(payload,php|jsp|asp|aspx)\n")
haproxy_cfg.write(f" acl blocked_webshell path_reg -i /(cmd|shell|backdoor|webshell|phpspy|c99|kacak|b374k|log4j|log4shell|wsos|madspot|malicious|evil).*\.php.*\n")
haproxy_cfg.write(f" acl is_suspicious_post hdr(Content-Type) -i application/x-www-form-urlencoded multipart/form-data\n")
haproxy_cfg.write(f" http-request deny if blocked_webshell or is_webshell or is_potential_webshell or is_suspicious_post \n")
haproxy_cfg.write(f" default_backend {backend_name}\n")
with open('/etc/haproxy/haproxy.cfg', 'a') as haproxy_cfg:
haproxy_cfg.write(f"\nbackend {backend_name}\n")
if sticky_session and sticky_session_type == 'cookie':
haproxy_cfg.write(" cookie SERVERID insert indirect nocache\n")
if sticky_session and sticky_session_type == 'stick-table':
haproxy_cfg.write(" stick-table type ip size 200k expire 5m\n")
haproxy_cfg.write(" stick on src\n")
if add_header:
haproxy_cfg.write(f" http-request set-header {header_name} \"{header_value}\"\n")
if protocol == 'http':
if health_check:
haproxy_cfg.write(f" option httpchk GET {health_check_link}\n")
haproxy_cfg.write(f" http-check disable-on-404\n")
haproxy_cfg.write(f" http-check expect string OK\n")
if protocol == 'tcp':
if health_check_tcp:
haproxy_cfg.write(f" option tcp-check\n")
haproxy_cfg.write(" tcp-check send PING" + r"\r\n" + "\n")
haproxy_cfg.write(" tcp-check send QUIT" + r"\r\n" + "\n")
# Process all backend servers
for i, backend_server in enumerate(backend_servers, 1):
if len(backend_server) >= 3: # Ensure we have name, ip and port
backend_server_name = backend_server[0] or f"server{i}"
backend_server_ip = backend_server[1]
backend_server_port = backend_server[2]
backend_server_maxconn = backend_server[3] if len(backend_server) > 3 else None
line = f" server {backend_server_name} {backend_server_ip}:{backend_server_port} check"
if sticky_session and sticky_session_type == 'cookie':
line += f" cookie {backend_server_name}"
if backend_server_maxconn:
line += f" maxconn {backend_server_maxconn}"
haproxy_cfg.write(line + "\n")
return "Frontend and Backend added successfully."
def count_frontends_and_backends():
"""Count frontends, backends, ACLs and layer types"""
if not os.path.exists(HAPROXY_CFG):
return 0, 0, 0, 0, 0
frontend_count = 0
backend_count = 0
acl_count = 0
layer7_count = 0
layer4_count = 0
with open('/etc/haproxy/haproxy.cfg', 'r') as haproxy_cfg:
lines = haproxy_cfg.readlines()
try:
with open(HAPROXY_CFG, 'r') as haproxy_cfg:
content = haproxy_cfg.read()
lines = content.split('\n')
for line in lines:
line = line.strip()
if line.startswith('frontend '):
frontend_count += 1
if line.startswith('acl '):
acl_count += 1
if line.startswith('mode http'):
layer7_count += 1
if line.startswith('mode tcp'):
layer4_count += 1
elif line.startswith('backend '):
backend_count += 1
for line in lines:
line_stripped = line.strip()
if line_stripped.startswith('frontend'):
frontend_count += 1
if 'mode http' in content:
layer7_count += 1
elif 'mode tcp' in content:
layer4_count += 1
elif line_stripped.startswith('backend'):
backend_count += 1
elif line_stripped.startswith('acl'):
acl_count += 1
except Exception as e:
print(f"[HAPROXY_CONFIG] Error counting: {e}", flush=True)
return frontend_count, backend_count, acl_count, layer7_count, layer4_count
def update_haproxy_config(frontend_name, frontend_ip, frontend_port, lb_method, protocol, backend_name,
backend_servers, health_check, health_check_tcp, health_check_link, sticky_session,
add_header, header_name, header_value, sticky_session_type, is_acl, acl_name,
acl_action, acl_backend_name, use_ssl, ssl_cert_path, https_redirect, is_dos,
ban_duration, limit_requests, forward_for, is_forbidden_path, forbidden_name,
allowed_ip, forbidden_path, sql_injection_check, is_xss, is_remote_upload,
add_path_based, redirect_domain_name, root_redirect, redirect_to, is_webshells):
# Ensure directory exists
os.makedirs(os.path.dirname(HAPROXY_CFG), exist_ok=True)
if is_backend_exist(backend_name):
return f"Backend {backend_name} already exists. Cannot add duplicate."
try:
with open(HAPROXY_CFG, 'a') as haproxy_cfg:
haproxy_cfg.write(f"\nfrontend {frontend_name}\n")
if is_frontend_exist(frontend_name, frontend_ip, frontend_port):
return "Frontend or Port already exists. Cannot add duplicate."
haproxy_cfg.write(f" bind {frontend_ip}:{frontend_port}")
if use_ssl:
haproxy_cfg.write(f" ssl crt {ssl_cert_path}")
haproxy_cfg.write("\n")
if https_redirect:
haproxy_cfg.write(f" redirect scheme https code 301 if !{{ ssl_fc }}\n")
if forward_for:
haproxy_cfg.write(f" option forwardfor\n")
haproxy_cfg.write(f" mode {protocol}\n")
haproxy_cfg.write(f" balance {lb_method}\n")
# Add protection rules
if is_dos:
haproxy_cfg.write(f" stick-table type ip size 1m expire {ban_duration} store http_req_rate(1m)\n")
haproxy_cfg.write(f" http-request track-sc0 src\n")
haproxy_cfg.write(f" acl abuse sc_http_req_rate(0) gt {limit_requests}\n")
haproxy_cfg.write(f" http-request silent-drop if abuse\n")
if sql_injection_check:
# POPRAWNE escape sequence'i - podwójny backslash dla haproxy
haproxy_cfg.write(" acl is_sql_injection urlp_reg -i (union|select|insert|update|delete|drop|@@|1=1|`1)\n")
haproxy_cfg.write(" acl is_long_uri path_len gt 400\n")
haproxy_cfg.write(" acl semicolon_path path_reg -i ^.*;.*\n")
haproxy_cfg.write(" acl is_sql_injection2 urlp_reg -i (;|substring|extract|union\\s+all|order\\s+by)\\s+(\\d+|--\\+)\n")
haproxy_cfg.write(f" http-request deny if is_sql_injection or is_long_uri or semicolon_path or is_sql_injection2\n")
if is_xss:
haproxy_cfg.write(" acl is_xss_attack urlp_reg -i (<|>|script|alert|onerror|onload|javascript)\n")
haproxy_cfg.write(" acl is_xss_attack_2 urlp_reg -i (<\\s*script\\s*|javascript:|<\\s*img\\s*src\\s*=|<\\s*a\\s*href\\s*=|<\\s*iframe\\s*src\\s*=|\\bon\\w+\\s*=|<\\s*input\\s*[^>]*\\s*value\\s*=|<\\s*form\\s*action\\s*=|<\\s*svg\\s*on\\w+\\s*=)\n")
haproxy_cfg.write(" acl is_xss_attack_hdr hdr_reg(Cookie|Referer|User-Agent) -i (<|>|script|alert|onerror|onload|javascript)\n")
haproxy_cfg.write(f" http-request deny if is_xss_attack or is_xss_attack_2 or is_xss_attack_hdr\n")
if is_webshells:
haproxy_cfg.write(" acl blocked_webshell path_reg -i /(cmd|shell|backdoor|webshell|phpspy|c99|kacak|b374k|log4j|log4shell|wsos|madspot|malicious|evil).*\\.php.*\n")
haproxy_cfg.write(f" http-request deny if blocked_webshell\n")
haproxy_cfg.write(f" default_backend {backend_name}\n")
# Backend section
haproxy_cfg.write(f"\nbackend {backend_name}\n")
haproxy_cfg.write(f" balance {lb_method}\n")
if sticky_session:
if sticky_session_type == "cookie":
haproxy_cfg.write(f" cookie SERVERID insert indirect nocache\n")
elif sticky_session_type == "source":
haproxy_cfg.write(f" stick-table type ip size 200k expire 30m\n")
haproxy_cfg.write(f" stick on src\n")
if health_check and protocol == 'http':
haproxy_cfg.write(f" option httpchk GET {health_check_link}\n")
elif health_check_tcp and protocol == 'tcp':
haproxy_cfg.write(f" option tcp-check\n")
if add_header:
haproxy_cfg.write(f" http-response add-header {header_name} {header_value}\n")
# Add backend servers
for server_name, server_ip, server_port, maxconn in backend_servers:
maxconn_str = f" maxconn {maxconn}" if maxconn else ""
if health_check and protocol == 'http':
haproxy_cfg.write(f" server {server_name} {server_ip}:{server_port}{maxconn_str} check\n")
else:
haproxy_cfg.write(f" server {server_name} {server_ip}:{server_port}{maxconn_str}\n")
return "Configuration updated successfully!"
except Exception as e:
print(f"[HAPROXY_CONFIG] Error updating config: {e}", flush=True)
return f"Error: {e}"