From 2ea91886df2c3390462d46486deccb425d6127a6 Mon Sep 17 00:00:00 2001
From: dqy <1016751306@qq.com>
Date: Fri, 19 Apr 2024 20:10:51 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=AD=A3=E5=88=99=E5=8C=B9=E9=85=8D?=
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---
 match/match.py | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 match/match.py

diff --git a/match/match.py b/match/match.py
new file mode 100644
index 0000000..3b53797
--- /dev/null
+++ b/match/match.py
@@ -0,0 +1,82 @@
+"""
+Usage: python match.py your_file_path
+"""
+
+import re
+from typing import List, Tuple, Dict
+import sys
+
+
+def read_file_content(file_path: str) -> str:
+    """
+    Reads and returns the content of a specified file. Exits the program with an error if the file does not exist or cannot be read.
+
+    :param file_path: The full path to the file.
+    :return: The text content of the file.
+    :raises FileNotFoundError: If the file does not exist.
+    :raises IOError: If the file cannot be read.
+    """
+    try:
+        with open(file_path, "r", encoding="utf-8") as file:
+            return file.read()
+    except FileNotFoundError:
+        print("Error: File not found.")
+        sys.exit(1)
+    except IOError:
+        print("Error: Could not read file.")
+        sys.exit(1)
+
+
+def find_dangerous_functions(file_content: str) -> Dict[str, List[Tuple[int, str]]]:
+    """
+    Searches the given code text for potentially dangerous function calls and classifies results by risk level.
+
+    :param file_content: String content of the code file.
+    :return: Dictionary with risk levels as keys and lists of tuples (line number, matched line content) as values.
+    """
+    # Define dangerous functions and their risk levels
+    patterns: Dict[str, str] = {
+        r"\bsystem\(": "high",
+        r"\bexec\(": "high",
+        r"\bpopen\(": "medium",
+        r"\beval\(": "high",
+        r"\bsubprocess\.run\(": "medium",
+    }
+    # Store results classified by risk level
+    classified_results = {"high": [], "medium": [], "low": []}
+    for line_number, line in enumerate(file_content.split("\n"), start=1):
+        found = False
+        for pattern, risk_level in patterns.items():
+            if re.search(pattern, line):
+                classified_results[risk_level].append((line_number, line.strip()))
+                found = True
+                break  # Stop checking other patterns once a match is found
+    return classified_results
+
+
+def main(file_path: str):
+    """
+    Main function that reads file content, checks for dangerous functions, and outputs classified results by risk level.
+
+    :param file_path: File path input from the command line.
+    """
+    file_content = read_file_content(file_path)
+    classified_dangerous = find_dangerous_functions(file_content)
+    for risk_level in [
+        "high",
+        "medium",
+    ]:  # Only iterate over high and medium risk levels
+        occurrences = classified_dangerous[risk_level]
+        if occurrences:
+            print(f"Dangerous functions found at risk level {risk_level}:")
+            for line_num, func in occurrences:
+                print(f"  Line {line_num}: {func}")
+        else:
+            print(f"No dangerous functions found at risk level {risk_level}.")
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python script.py <file_path>")
+        sys.exit(1)
+    main(sys.argv[1])