IInternetSecurityManagerEx2::ProcessUrlActionEx2 method

Artikel
08/15/2017

Determines the policy for a specified action and displays a prompt, if the policy calls for one.

Syntax

HRESULT ProcessUrlActionEx2(
  [in]  IUri  *pUri,
  [in]  DWORD dwAction,
  [out] BYTE  *pPolicy,
  [in]  DWORD cbPolicy,
  [in]  BYTE  *pContext,
  [in]  DWORD cbContext,
  [in]  DWORD dwFlags,
  [in]  DWORD dwReserved,
  [out] DWORD *pdwOutFlags
);

Parameters

pUri [in]
A pointer to an IUri interface that specifies the URL.
dwAction [in]
A DWORD that specifies the action to be performed. This can be one of the URL Action Flags values.
pPolicy [out]
Required. A pointer to a buffer that receives the policy and action for the specified URL. This must be one of the URL Policy Flags values.
cbPolicy [in]
DWORD that specifies the size of the buffer pPolicy. Should be at least sizeof(DWORD).
pContext [in]
A pointer to a buffer that contains the context information (a CLSID) used by the delegation routines. Can be set to NULL.
cbContext [in]
A DWORD that specifies the size of the buffer pContext, or 0 if pContext is NULL.
dwFlags [in]
A DWORD that specifies a PUAF enumeration value or values.
dwReserved [in]
Reserved. Must be set to NULL.
pdwOutFlags [out]
A pointer to a DWORD that gets the PUAFOUT value that specifies whether the lockdown zone was used.

Return value

Returns one of the following values.

Return code	Description
S_OK	Success. The URL policy is URLPOLICY_ALLOW.
S_FALSE	Found a valid URL policy that is not URLPOLICY_ALLOW.
E_OUTOFMEMORY	There is not enough memory to complete the operation.
E_INVALIDARG	URI is null.
E_UNEXPECTED	Failed to initialize the ZoneManager.

Remarks

This method can also return an HRESULT derived from the Microsoft Win32 error code ERROR_NOT_FOUND to indicate that the URL action cannot be read from the registry.

The IInternetSecurityManagerEx2::ProcessUrlActionEx2 method was introduced in Windows Internet Explorer 7. It is identical to ProcessUrlActionEx except that it takes its URL from an IUri object.

If FEATURE_PROTOCOL_LOCKDOWN is enabled for the current process, and URLACTION_ALLOW_RESTRICTEDPROTOCOLS is set to URLPOLICY_DISALLOW or URLPOLICY_QUERY for the zone of the URL, the caller can indicate that the URL value can be read from the lockdown zone. It can indicate whether it read the policy from the default security zone or from the Lockdown_Zones registry key. IInternetSecurityManagerEx2::ProcessUrlActionEx2 can inform the caller about the choice of zone setting made through the PUAFOUT flags parameter.

Security Warning: Incorrect implementation of this method can compromise the security of your application. A custom implementation of ProcessUrlActionEx should only process URL actions that the default application cannot or should not handle. For all other URL actions, this method should return INET_E_DEFAULT_ACTION. An attempt to duplicate the default implementation can result in incorrectly processing of URL actions and might leave users susceptible to elevation of privilege attacks. Review Security Considerations: URL Security Zones API before you continue.

Note If you create your own implementation of this method, you must set the pPolicy value before you return a success code (S_OK or S_FALSE).

Requirements

Minimum supported client	Windows XP with SP2
Minimum supported server	Windows Server 2003 with SP1
Product	Internet Explorer 7
Header	Urlmon.h
IDL	Urlmon.idl
DLL	Urlmon.dll

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