我可以在HttpOnly中使用IHTMLDocument2访问ActiveX cookie吗？

Question

能否通过在Internet Explorer11中运行的ActiveX中的IHTMLDocument2::cookie访问标记为HttpOnly的会话cookie？以下是来自the answer to this question的代码示例

CComPtr<IHTMLDocument2> pDoc // get document from event as shown in the sample.

// read the cookie
CComBSTR cookie;
hr = pDoc->get_cookie(&cookie);

如果无法通过IHTMLDocument2访问，是否有其他方法可以访问在IE inside ActiveX中打开的网站的所有cookies？

Answer 1

无法使用document对象读取cookies。因此，您需要在浏览器上下文之外读取cookie。有一个SO线程解释了如何做同样的事情。

Retrieve ALL cookies from Internet Explorer

以下是答案中供参考的VBA代码

Option Explicit

Sub GetIECookies()

    Dim sCookiesPath As String
    Dim oCookies As Object
    Dim oFSO As Object
    Dim oFolder As Object
    Dim oFile
    Dim sContent As String
    Dim a() As String
    Dim i As Long
    Dim aItems
    Dim aCookies()

    ' read IE cookie files
    sCookiesPath = CreateObject("shell.application").Namespace("shell:Cookies").self.Path
    Set oCookies = CreateObject("Scripting.Dictionary")
    Set oFSO = CreateObject("Scripting.FileSystemObject")
    Set oFolder = oFSO.GetFolder(sCookiesPath)
    For Each oFile In oFolder.Files
        If LCase(oFSO.GetExtensionName(oFile.Name)) = "txt" Then
            With oFile.OpenAsTextStream(1, 0) ' read-only, ascii
                sContent = .ReadAll
                .Close
            End With
            sContent = Replace(sContent, vbCr, "")
            ' split cookies within file
            a = Split(sContent, vbLf & "*" & vbLf)
            For i = 0 To UBound(a) - 1
                oCookies.Add oCookies.Count, a(i)
            Next
        End If
    Next
    ' parse data, repack to 2d array
    aItems = oCookies.Items()
    If UBound(aItems) = -1 Then
        MsgBox "No cookies found"
    Else
        ReDim aCookies(1 To UBound(aItems) + 1, 1 To 6)
        For i = 1 To UBound(aItems) + 1
            a = Split(aItems(i - 1), vbLf)
            aCookies(i, 1) = a(0)
            aCookies(i, 2) = a(1)
            aCookies(i, 3) = a(2)
            aCookies(i, 4) = GetInetCookieFlags(a(3))
            aCookies(i, 5) = ConvDT(a(4), a(5))
            aCookies(i, 6) = ConvDT(a(6), a(7))
        Next
        ' output
        With ThisWorkbook.Sheets(1)
            .Cells.Delete
            .Range("A1:F1") = Array("Name", "Value", "Host/Path", "Flags", "Expiration", "Created")
            Output .Range("A2"), aCookies
        End With
    End If

End Sub

Function ConvDT(sLowNTFmt As String, sHighNTFmt As String) As Date

    Dim dNTFmt As Double
    Dim dUnixFmt As Double

    ' FILETIME format is the number of 100 nanosecond ticks since 00:00 1 Jan, 1601 (UTC).
    dNTFmt = sHighNTFmt * 4294967296# + sLowNTFmt
    ' Unix time format is the number of seconds since 00:00 1 Jan 1970
    dUnixFmt = 0.0000001 * dNTFmt - 11644473600#
    ' VB time format is the number of days since 00:00 1 Jan 1900
    ConvDT = CDate(dUnixFmt / 86400 + 25569)

End Function

Function GetInetCookieFlags(sFlags As String) As String

    Dim lFlags As Long
    Dim aFlag

    ' reset bit 32 to avoid overflow
    If sFlags >= 2147483648# Then lFlags = CLng(sFlags - 2147483648#) Else lFlags = CLng(sFlags)
    ' convert flags bits to string representation
    With CreateObject("Scripting.Dictionary")
        For Each aFlag In Array( _
            Array(&H1, "IS SECURE"), _
            Array(&H2, "IS SESSION"), _
            Array(&H10, "THIRD PARTY"), _
            Array(&H20, "PROMPT REQUIRED"), _
            Array(&H40, "EVALUATE P3P"), _
            Array(&H80, "APPLY P3P"), _
            Array(&H100, "P3P ENABLED"), _
            Array(&H200, "IS RESTRICTED"), _
            Array(&H400, "IE6"), _
            Array(&H800, "IS LEGACY"), _
            Array(&H1000, "NON SCRIPT"), _
            Array(&H2000, "HTTPONLY"), _
            Array(&H4000, "HOST ONLY"), _
            Array(&H8000, "APPLY HOST ONLY"), _
            Array(&H20000, "RESTRICTED ZONE"), _
            Array(&H20000000, "ALL COOKIES"), _
            Array(&H40000000, "NO CALLBACK"), _
            Array(&H80000000, "ECTX 3RDPARTY") _
        )
            If lFlags And aFlag(0) Then .Add .Count, aFlag(1)
        Next
        GetInetCookieFlags = Join(.Items(), vbCrLf)
    End With

End Function

Sub Output(oDstRng As Range, aCells As Variant)

    With oDstRng
        .Parent.Select
        With .Resize( _
            UBound(aCells, 1) - LBound(aCells, 1) + 1, _
            UBound(aCells, 2) - LBound(aCells, 2) + 1 _
        )
            .NumberFormat = "@"
            .Value = aCells
            .Columns.AutoFit
        End With
    End With

End Sub

当然，如果您想在VC++代码中使用它，则需要将其移植到want代码中