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Python application test / build (pull_request) Successful in 19s
245 lines
8.6 KiB
Python
245 lines
8.6 KiB
Python
import os
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import re
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import sys
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from typing import Dict, List, Tuple
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from reportlab.lib.pagesizes import letter
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from reportlab.pdfgen import canvas
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from reportlab.lib.styles import getSampleStyleSheet
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from reportlab.platypus import Paragraph, Spacer, SimpleDocTemplate
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from reportlab.lib import colors
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SUPPORTED_EXTENSIONS = {".py", ".js", ".cpp"}
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OUTPUT_FORMATS = ["html", "md", "txt", "pdf"]
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def read_file_content(file_path: str) -> str:
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try:
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with open(file_path, "r", encoding="utf-8") as file:
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return file.read()
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except FileNotFoundError:
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print("Error: File not found.")
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sys.exit(1)
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except IOError:
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print("Error: Could not read file.")
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sys.exit(1)
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def remove_comments(code: str, extension: str) -> str:
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if extension == ".py":
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return code.split("#")[0].strip()
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elif extension in {".js", ".cpp"}:
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code = re.sub(r"//.*", "", code)
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code = re.sub(r"/\*.*?\*/", "", code, flags=re.DOTALL)
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return code.strip()
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return code.strip()
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def find_dangerous_functions(
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file_content: str, file_extension: str
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) -> Dict[str, List[Tuple[int, str]]]:
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patterns = {
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".py": {
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r"\bsystem\(": "high",
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r"\bexec\(": "high",
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r"\bpopen\(": "medium",
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r"\beval\(": "high",
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r"\bsubprocess\.run\(": "medium",
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r"\b__getattribute__\(": "high",
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r"\bgetattr\(": "medium",
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r"\b__import__\(": "high",
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},
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".js": {
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r"\beval\(": "high",
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r"\bexec\(": "high",
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r"\bchild_process\.exec\(": "high",
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},
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".cpp": {
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r"\bsystem\(": "high",
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},
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}
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risk_patterns = patterns.get(file_extension, {})
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classified_results = {"high": [], "medium": [], "low": [], "none": []}
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for line_number, line in enumerate(file_content.split("\n"), start=1):
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clean_line = remove_comments(line, file_extension)
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if not clean_line:
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continue
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for pattern, risk_level in risk_patterns.items():
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if re.search(pattern, clean_line):
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classified_results[risk_level].append((line_number, clean_line))
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return classified_results
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def generate_text_content(results):
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text_output = "Security Analysis Report\n"
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for risk_level, entries in results.items():
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if entries and risk_level != "none":
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text_output += f"{risk_level.capitalize()} Risk:\n"
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for line_num, line in entries:
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text_output += f" Line {line_num}: {line}\n"
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return text_output
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def output_results(results, output_format, output_file=None):
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if output_file:
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file_name, file_extension = os.path.splitext(output_file)
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if output_format not in OUTPUT_FORMATS:
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output_format = "txt"
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output_file = f"{file_name}.txt"
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results_dir = os.path.dirname(output_file)
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if not os.path.exists(results_dir):
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os.makedirs(results_dir)
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if output_format == "pdf":
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output_pdf(results, output_file)
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elif output_format == "html":
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output_html(results, output_file)
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elif output_format == "md":
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output_markdown(results, output_file)
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else: # Default to txt
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output_text(results, output_file)
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else:
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# If no output file is specified, default to text output to the terminal.
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txt_output = generate_text_content(results)
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print(txt_output)
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def output_pdf(results: Dict[str, List[Tuple[int, str]]], file_name):
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doc = SimpleDocTemplate(file_name, pagesize=letter)
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story = []
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styles = getSampleStyleSheet()
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# Add the title centered
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title_style = styles["Title"]
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title_style.alignment = 1 # Center alignment
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title = Paragraph("Security Analysis Report", title_style)
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story.append(title)
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story.append(Spacer(1, 20)) # Space after title
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# Add risk levels and entries
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normal_style = styles["BodyText"]
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for risk_level, entries in results.items():
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if risk_level != "none":
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story.append(
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Paragraph(f"{risk_level.capitalize()} Risk:", styles["Heading2"])
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)
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for line_num, line in entries:
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entry = Paragraph(f"Line {line_num}: {line}", normal_style)
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story.append(entry)
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story.append(Spacer(1, 12)) # Space between sections
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doc.build(story)
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def output_html(results: Dict[str, List[Tuple[int, str]]], file_name=None):
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html_output = "<html><head><title>Security Analysis Report</title></head><body>"
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html_output += "<h1>Security Analysis Report</h1>"
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for risk_level, entries in results.items():
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if risk_level != "none":
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html_output += f"<h2>{risk_level.capitalize()} Risk</h2><ul>"
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for line_num, line in entries:
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html_output += f"<li>{line_num}: {line}</li>"
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html_output += "</ul>"
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html_output += "</body></html>"
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if file_name:
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with open(file_name, "w") as file:
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file.write(html_output)
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else:
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return html_output
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def output_markdown(results: Dict[str, List[Tuple[int, str]]], file_name=None):
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md_output = "# Security Analysis Report\n"
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for risk_level, entries in results.items():
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if risk_level != "none":
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md_output += f"## {risk_level.capitalize()} Risk\n"
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for line_num, line in entries:
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md_output += f"- {line_num}: {line}\n"
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if file_name:
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with open(file_name, "w") as file:
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file.write(md_output)
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else:
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return md_output
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def output_text(results: Dict[str, List[Tuple[int, str]]], file_name=None):
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text_output = "Security Analysis Report\n"
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for risk_level, entries in results.items():
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if risk_level != "none":
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text_output += f"{risk_level.capitalize()} Risk:\n"
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for line_num, line in entries:
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text_output += f" {line_num}: {line}\n"
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if file_name:
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with open(file_name, "w") as file:
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file.write(text_output)
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else:
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return text_output
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def process_path(path: str, output_format: str, output_file=None):
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results = {"high": [], "medium": [], "low": [], "none": []}
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if os.path.isdir(path):
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for root, dirs, files in os.walk(path):
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for file in files:
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file_extension = os.path.splitext(file)[1]
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if file_extension in SUPPORTED_EXTENSIONS:
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file_path = os.path.join(root, file)
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file_results = find_dangerous_functions(
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read_file_content(file_path), file_extension
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)
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for key in file_results:
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if key != "none": # Exclude 'none' risk level
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results[key].extend(
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[
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(f"{file_path}: Line {line_num}", line)
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for line_num, line in file_results[key]
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]
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)
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elif os.path.isfile(path):
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file_extension = os.path.splitext(path)[1]
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if file_extension in SUPPORTED_EXTENSIONS:
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file_results = find_dangerous_functions(
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read_file_content(path), file_extension
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)
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for key in file_results:
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if key != "none": # Exclude 'none' risk level
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results[key].extend(
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[
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(f"{path}: Line {line_num}", line)
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for line_num, line in file_results[key]
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]
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)
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else:
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print("Unsupported file type.")
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return
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else:
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print("Invalid path.")
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sys.exit(1)
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output_results(results, output_format, output_file)
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def main():
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import argparse
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parser = argparse.ArgumentParser(description="Backdoor detection tool.")
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parser.add_argument("path", help="Path to the code to analyze")
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parser.add_argument("-o", "--output", help="Output file path", default=None)
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args = parser.parse_args()
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output_format = "txt" # Default output format
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output_file = None
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if args.output:
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_, ext = os.path.splitext(args.output)
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ext = ext.lower()
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if ext in [".html", ".md", ".txt", ".pdf"]:
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output_format = ext.replace(".", "")
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output_file = args.output
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else:
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print(
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"Your input file format was incorrect, the output has been saved as a TXT file."
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)
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output_file = args.output.rsplit(".", 1)[0] + ".txt"
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process_path(args.path, output_format, output_file)
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if __name__ == "__main__":
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main()
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