update app/grabber/patterns.py

app/grabber/patterns.py

@@ -0,0 +1,71 @@
+import re
+from typing import List, Tuple
+
+
+class ProxyPatterns:
+    HTTP_IP_PORT = re.compile(
+        r"\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}"
+        r"(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)"
+        r":([0-9]{1,5})\b"
+    )
+
+    VMESS_URL = re.compile(r"vmess://[A-Za-z0-9+/=]+")
+
+    VLESS_URL = re.compile(r"vless://[a-zA-Z0-9-]+@[a-zA-Z0-9.-]+:[0-9]+[^\s]*")
+
+    TROJAN_URL = re.compile(r"trojan://[^@\s]+@[a-zA-Z0-9.-]+:[0-9]+[^\s]*")
+
+    SS_URL = re.compile(r"ss://[A-Za-z0-9+/=]+@[a-zA-Z0-9.-]+:[0-9]+")
+
+    @classmethod
+    def extract_http_proxies(cls, text: str) -> List[Tuple[str, str]]:
+        result = []
+        for match in cls.HTTP_IP_PORT.finditer(text):
+            ip_port = match.group(0)
+            ip, port = ip_port.rsplit(":", 1)
+            result.append((ip, port))
+        return result
+
+    @classmethod
+    def is_vmess(cls, url: str) -> bool:
+        return bool(cls.VMESS_URL.match(url))
+
+    @classmethod
+    def extract_vmess_urls(cls, text: str) -> List[str]:
+        return cls.VMESS_URL.findall(text)
+
+    @classmethod
+    def is_vless(cls, url: str) -> bool:
+        return bool(cls.VLESS_URL.match(url))
+
+    @classmethod
+    def extract_vless_urls(cls, text: str) -> List[str]:
+        return cls.VLESS_URL.findall(text)
+
+    @classmethod
+    def is_trojan(cls, url: str) -> bool:
+        return bool(cls.TROJAN_URL.match(url))
+
+    @classmethod
+    def extract_trojan_urls(cls, text: str) -> List[str]:
+        return cls.TROJAN_URL.findall(text)
+
+    @classmethod
+    def is_shadowsocks(cls, url: str) -> bool:
+        return bool(cls.SS_URL.match(url))
+
+    @classmethod
+    def extract_ss_urls(cls, text: str) -> List[str]:
+        return cls.SS_URL.findall(text)
+
+    @classmethod
+    def is_valid_ip(cls, ip: str) -> bool:
+        try:
+            octets = ip.split(".")
+            return len(octets) == 4 and all(0 <= int(o) <= 255 for o in octets)
+        except (ValueError, AttributeError):
+            return False
+
+    @classmethod
+    def is_valid_port(cls, port: int) -> bool:
+        return 1 <= port <= 65535