(cache)extensions/LeanSERP-Studio-package/LeanSERP-Studio-URL-Mode/ApplyApprovedOverrides.cs at main · Fengsemul/extensions · GitHub

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using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Text.Json;

internal static class ApplyApprovedOverrides
{
    private sealed class Options
    {
        public string InputBuild = "";
        public string ApprovedRulesDirectory = "";
        public string OutputDirectory = "";
    }

    private sealed class Report
    {
        public string Format { get; set; } =
            "leanserp-approved-overrides";
        public int Version { get; set; } = 1;
        public string CreatedAt { get; set; } = "";
        public string SourceBuild { get; set; } = "";
        public long OriginalLabelCount { get; set; }
        public long FinalLabelCount { get; set; }
        public int ApprovedOverrideCount { get; set; }
        public int UsedOverrideCount { get; set; }
        public int AddedLabelCount { get; set; }
        public int ApprovedExactHostCount { get; set; }
        public int UsedExactHostCount { get; set; }
        public string LabelsSha256 { get; set; } = "";
        public string OverridesSha256 { get; set; } = "";
        public string ExactHostsSha256 { get; set; } = "";
        public string[] UsedOverrides { get; set; } =
            Array.Empty<string>();
        public string[] UsedExactHosts { get; set; } =
            Array.Empty<string>();
    }

    private static int Main(string[] args)
    {
        try
        {
            Options options = ParseOptions(args);
            ValidateOptions(options);

            string inputLabels = Path.Combine(
                options.InputBuild,
                "labels.txt"
            );
            string pslOnlyInput = Path.Combine(
                options.InputBuild,
                "public-suffix-only.tsv"
            );
            string approvedOverridesPath = Path.Combine(
                options.ApprovedRulesDirectory,
                "psl-label-overrides-approved.txt"
            );
            string approvedExactHostsPath = Path.Combine(
                options.ApprovedRulesDirectory,
                "exact-host-blocks-approved.txt"
            );

            var approvedOverrides = LoadLabels(
                approvedOverridesPath
            );
            var approvedExactHosts = LoadHostnames(
                approvedExactHostsPath
            );

            var usedOverrides = new HashSet<string>(
                StringComparer.Ordinal
            );
            var usedExactHosts = new HashSet<string>(
                StringComparer.Ordinal
            );

            ScanPslOnlyHosts(
                pslOnlyInput,
                approvedOverrides,
                approvedExactHosts,
                usedOverrides,
                usedExactHosts
            );

            string timestamp =
                DateTime.Now.ToString(
                    "yyyyMMdd-HHmmss",
                    CultureInfo.InvariantCulture
                );

            string outputBuild = Path.Combine(
                options.OutputDirectory,
                "approved-build-" + timestamp
            );

            Directory.CreateDirectory(outputBuild);

            string outputLabels = Path.Combine(
                outputBuild,
                "labels.txt"
            );
            string outputOverrides = Path.Combine(
                outputBuild,
                "psl-label-overrides.txt"
            );
            string outputExactHosts = Path.Combine(
                outputBuild,
                "exact-host-blocks.txt"
            );
            string outputReport = Path.Combine(
                outputBuild,
                "approved-overrides-report.json"
            );

            var sortedOverrides = usedOverrides.ToArray();
            Array.Sort(
                sortedOverrides,
                StringComparer.Ordinal
            );

            var sortedExactHosts = usedExactHosts.ToArray();
            Array.Sort(
                sortedExactHosts,
                StringComparer.Ordinal
            );

            File.WriteAllLines(
                outputOverrides,
                sortedOverrides,
                new UTF8Encoding(false)
            );

            File.WriteAllLines(
                outputExactHosts,
                sortedExactHosts,
                new UTF8Encoding(false)
            );

            (
                long originalLabelCount,
                long finalLabelCount,
                int addedLabelCount
                }
            }
        }

        return hostname;
    }

    private static string RemoveBomArtifacts(
        string value
    )
    {
        string text =
            (value ?? "").TrimStart('\uFEFF');

        while (
            text.StartsWith(
                "\u00EF\u00BB\u00BF",
                StringComparison.Ordinal
            )
        )
        {
            text = text.Substring(3);
        }

        while (
            text.StartsWith(
                "\u00EF\u00BF\u00BD",
                StringComparison.Ordinal
            )
        )
        {
            text = text.Substring(3);
        }

        return text;
    }

    private static string ComputeSha256(
        string path
    )
    {
        using SHA256 sha256 =
            SHA256.Create();

        using FileStream stream =
            new FileStream(
                path,
                FileMode.Open,
                FileAccess.Read,
                FileShare.Read,
                1024 * 1024,
                FileOptions.SequentialScan
            );

        byte[] hash =
            sha256.ComputeHash(stream);

        var output = new StringBuilder(
            hash.Length * 2
        );

        foreach (byte value in hash)
        {
            output.Append(
                value.ToString(
                    "x2",
                    CultureInfo.InvariantCulture
                )
            );
        }

        return output.ToString();
    }
}