feat: 系统工具改为异步，增加tcpdump工具

apps/settings/utils/common.py

@@ -1,6 +1,7 @@
 # coding: utf-8
 from jumpserver.context_processor import default_interface
 from django.conf import settings
+from IPy import IP
 
 
 def get_interface_setting_or_default():
@@ -12,3 +13,56 @@ def get_interface_setting_or_default():
 
 def get_login_title():
     return get_interface_setting_or_default()['login_title']
+
+
+def generate_ips(ip_string):
+    # 支持的格式
+    # 192.168.1.1,192.168.1.2
+    # 192.168.1.1-12 | 192.168.1.1-192.168.1.12 | 192.168.1.0/30 | 192.168.1.1
+    ips = []
+    ip_list = ip_string.split(',')
+    if len(ip_list) > 1:
+        for ip in ip_list:
+            try:
+                ips.append(str(IP(ip)))
+            except ValueError:
+                pass
+        return ips
+
+    ip_list = ip_string.split('-')
+    try:
+        if len(ip_list) == 2:
+            start_ip, end_ip = ip_list
+            if ip_list[1].find('.') == -1:
+                end_ip = start_ip[:start_ip.rindex('.') + 1] + end_ip
+            for ip in range(IP(start_ip).int(), IP(end_ip).int() + 1):
+                ips.extend((str(ip) for ip in IP(ip)))
+        else:
+            ips.extend((str(ip) for ip in IP(ip_list[0])))
+    except ValueError:
+        ips = []
+    return ips
+
+
+def is_valid_port(port):
+    valid = True
+    try:
+        port = int(port)
+        if port > 65535 or port < 1:
+            valid = False
+    except (TypeError, ValueError):
+        valid = False
+    return valid
+
+def generate_ports(ports):
+    port_list = []
+    if isinstance(ports, int):
+        port_list.append(ports)
+    elif isinstance(ports, str):
+        port_list.extend(
+            [int(p) for p in ports.split(',') if p.isdigit()]
+        )
+    elif isinstance(ports, list):
+        port_list = ports
+    port_list = list(map(int, filter(is_valid_port, port_list)))
+    return port_list