ZipFile.OpenRead(String) Méthode

public:
 static System::IO::Compression::ZipArchive ^ OpenRead(System::String ^ archiveFileName);

public static System.IO.Compression.ZipArchive OpenRead (string archiveFileName);

static member OpenRead : string -> System.IO.Compression.ZipArchive

Public Shared Function OpenRead (archiveFileName As String) As ZipArchive

Paramètres

Retours

Archive zip ouverte.

Exceptions

Exemples

L’exemple suivant montre comment ouvrir une archive zip pour la lecture.

using System;
using System.IO;
using System.IO.Compression;

class Program
{
    static void Main(string[] args)
    {
        string zipPath = @".\result.zip";

        Console.WriteLine("Provide path where to extract the zip file:");
        string extractPath = Console.ReadLine();

        // Normalizes the path.
        extractPath = Path.GetFullPath(extractPath);

        // Ensures that the last character on the extraction path
        // is the directory separator char.
        // Without this, a malicious zip file could try to traverse outside of the expected
        // extraction path.
        if (!extractPath.EndsWith(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal))
            extractPath += Path.DirectorySeparatorChar;

        using (ZipArchive archive = ZipFile.OpenRead(zipPath))
        {
            foreach (ZipArchiveEntry entry in archive.Entries)
            {
                if (entry.FullName.EndsWith(".txt", StringComparison.OrdinalIgnoreCase))
                {
                    // Gets the full path to ensure that relative segments are removed.
                    string destinationPath = Path.GetFullPath(Path.Combine(extractPath, entry.FullName));

                    // Ordinal match is safest, case-sensitive volumes can be mounted within volumes that
                    // are case-insensitive.
                    if (destinationPath.StartsWith(extractPath, StringComparison.Ordinal))
                        entry.ExtractToFile(destinationPath);
                }
            }
        }
    }
}

open System
open System.IO;
open System.IO.Compression;

[<EntryPoint>]
let main _ =
    let zipPath = @".\result.zip"

    printfn "Provide path where to extract the zip file:"
    let extractPath = stdin.ReadLine();

    // Normalizes the path.
    let mutable extractPath = Path.GetFullPath extractPath

    // Ensures that the last character on the extraction path
    // is the directory separator char.
    // Without this, a malicious zip file could try to traverse outside of the expected
    // extraction path.
    if extractPath.EndsWith(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal) |> not then
        extractPath <- extractPath + string Path.DirectorySeparatorChar

    use archive = ZipFile.OpenRead zipPath

    for entry in archive.Entries do
        if entry.FullName.EndsWith(".txt", StringComparison.OrdinalIgnoreCase) then
            // Gets the full path to ensure that relative segments are removed.
            let destinationPath = Path.GetFullPath(Path.Combine(extractPath, entry.FullName))

            // Ordinal match is safest, case-sensitive volumes can be mounted within volumes that
            // are case-insensitive.
            if destinationPath.StartsWith(extractPath, StringComparison.Ordinal) then
                entry.ExtractToFile destinationPath
    0

Imports System.IO
Imports System.IO.Compression

Module Module1

    Sub Main()
        Dim zipPath As String = ".\result.zip"

        Console.WriteLine("Provide path where to extract the zip file:")
        Dim extractPath As String = Console.ReadLine()

        ' Normalizes the path.
        extractPath = Path.GetFullPath(extractPath)

        ' Ensures that the last character on the extraction path
        ' is the directory separator char. 
        ' Without this, a malicious zip file could try to traverse outside of the expected
        ' extraction path.
        If Not extractPath.EndsWith(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal) Then
            extractPath += Path.DirectorySeparatorChar
        End If

        Using archive As ZipArchive = ZipFile.OpenRead(zipPath)
            For Each entry As ZipArchiveEntry In archive.Entries
                If entry.FullName.EndsWith(".txt", StringComparison.OrdinalIgnoreCase) Then

                    ' Gets the full path to ensure that relative segments are removed.
                    Dim destinationPath As String = Path.GetFullPath(Path.Combine(extractPath, entry.FullName))
                    
                    ' Ordinal match is safest, case-sensitive volumes can be mounted within volumes that
                    ' are case-insensitive.
                    If destinationPath.StartsWith(extractPath, StringComparison.Ordinal) Then 
                        entry.ExtractToFile(destinationPath)
                    End If

                End If
            Next
        End Using
    End Sub

End Module

Remarques

Cette méthode équivaut à appeler la Open méthode et à définir le mode paramètre sur Read. L’archive est ouverte avec FileMode.Open comme valeur de mode de fichier. Si l’archive n’existe pas, une FileNotFoundException exception est levée.

S’applique à