Remove 'get_lan_ip' and add common misc_utils.py (#10880)

### What problem does this PR solve?

Add get_uuid, download_img and hash_str2int into misc_utils.py

### Type of change

- [x] Refactoring

---------

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

api/utils/__init__.py

@@ -13,49 +13,8 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 #
-import base64
-import hashlib
-import os
-import socket
-import uuid
-import requests
-
 import importlib
 
-from .common import string_to_bytes
-
-def get_lan_ip():
-    if os.name != "nt":
-        import fcntl
-        import struct
-
-        def get_interface_ip(ifname):
-            s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-            return socket.inet_ntoa(
-                fcntl.ioctl(s.fileno(), 0x8915, struct.pack('256s', string_to_bytes(ifname[:15])))[20:24])
-
-    ip = socket.gethostbyname(socket.getfqdn())
-    if ip.startswith("127.") and os.name != "nt":
-        interfaces = [
-            "bond1",
-            "eth0",
-            "eth1",
-            "eth2",
-            "wlan0",
-            "wlan1",
-            "wifi0",
-            "ath0",
-            "ath1",
-            "ppp0",
-        ]
-        for ifname in interfaces:
-            try:
-                ip = get_interface_ip(ifname)
-                break
-            except IOError:
-                pass
-    return ip or ''
-
 
 def from_dict_hook(in_dict: dict):
     if "type" in in_dict and "data" in in_dict:
@@ -66,20 +25,3 @@ def from_dict_hook(in_dict: dict):
                 in_dict["module"]), in_dict["type"])(**in_dict["data"])
     else:
         return in_dict
-
-
-def get_uuid():
-    return uuid.uuid1().hex
-
-
-def download_img(url):
-    if not url:
-        return ""
-    response = requests.get(url)
-    return "data:" + \
-        response.headers.get('Content-Type', 'image/jpg') + ";" + \
-        "base64," + base64.b64encode(response.content).decode("utf-8")
-
-
-def hash_str2int(line: str, mod: int = 10 ** 8) -> int:
-    return int(hashlib.sha1(line.encode("utf-8")).hexdigest(), 16) % mod