wxWidgets/include/wx/webrequest.h
Serghei Amelian 16d096b7ef Add wxWebRequestEvent::GetRequest()
It is more convenient to be able to retrieve the request object (which
is needed at least for authentication) from the event than to have to
store it separately.

Closes https://github.com/wxWidgets/wxWidgets/pull/2644

Closes #19360.
2022-01-11 18:16:09 +01:00

305 lines
8.1 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: wx/webrequest.h
// Purpose: wxWebRequest base classes
// Author: Tobias Taschner
// Created: 2018-10-17
// Copyright: (c) 2018 wxWidgets development team
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WEBREQUEST_H
#define _WX_WEBREQUEST_H
#include "wx/defs.h"
#include "wx/secretstore.h"
// Note that this class is intentionally defined outside of wxUSE_WEBREQUEST
// test as it's also used in wxCredentialEntryDialog and can be made available
// even if wxWebRequest itself is disabled.
class wxWebCredentials
{
public:
wxWebCredentials(const wxString& user = wxString(),
const wxSecretValue& password = wxSecretValue())
: m_user(user), m_password(password)
{
}
const wxString& GetUser() const { return m_user; }
const wxSecretValue& GetPassword() const { return m_password; }
private:
wxString m_user;
wxSecretValue m_password;
};
#if wxUSE_WEBREQUEST
#include "wx/event.h"
#include "wx/object.h"
#include "wx/stream.h"
#include "wx/versioninfo.h"
class wxWebResponse;
class wxWebSession;
class wxWebSessionFactory;
typedef struct wxWebRequestHandleOpaque* wxWebRequestHandle;
typedef struct wxWebSessionHandleOpaque* wxWebSessionHandle;
class wxWebAuthChallengeImpl;
class wxWebRequestImpl;
class wxWebResponseImpl;
class wxWebSessionImpl;
typedef wxObjectDataPtr<wxWebAuthChallengeImpl> wxWebAuthChallengeImplPtr;
typedef wxObjectDataPtr<wxWebRequestImpl> wxWebRequestImplPtr;
typedef wxObjectDataPtr<wxWebResponseImpl> wxWebResponseImplPtr;
typedef wxObjectDataPtr<wxWebSessionImpl> wxWebSessionImplPtr;
class WXDLLIMPEXP_NET wxWebAuthChallenge
{
public:
enum Source
{
Source_Server,
Source_Proxy
};
wxWebAuthChallenge();
wxWebAuthChallenge(const wxWebAuthChallenge& other);
wxWebAuthChallenge& operator=(const wxWebAuthChallenge& other);
~wxWebAuthChallenge();
bool IsOk() const { return m_impl.get() != NULL; }
Source GetSource() const;
void SetCredentials(const wxWebCredentials& cred);
private:
// Ctor is used by wxWebRequest only.
friend class wxWebRequest;
explicit wxWebAuthChallenge(const wxWebAuthChallengeImplPtr& impl);
wxWebAuthChallengeImplPtr m_impl;
};
class WXDLLIMPEXP_NET wxWebResponse
{
public:
wxWebResponse();
wxWebResponse(const wxWebResponse& other);
wxWebResponse& operator=(const wxWebResponse& other);
~wxWebResponse();
bool IsOk() const { return m_impl.get() != NULL; }
wxFileOffset GetContentLength() const;
wxString GetURL() const;
wxString GetHeader(const wxString& name) const;
wxString GetMimeType() const;
int GetStatus() const;
wxString GetStatusText() const;
wxInputStream* GetStream() const;
wxString GetSuggestedFileName() const;
wxString AsString() const;
wxString GetDataFile() const;
protected:
// Ctor is used by wxWebRequest and wxWebRequestImpl.
friend class wxWebRequest;
friend class wxWebRequestImpl;
explicit wxWebResponse(const wxWebResponseImplPtr& impl);
wxWebResponseImplPtr m_impl;
};
class WXDLLIMPEXP_NET wxWebRequest
{
public:
enum State
{
State_Idle,
State_Unauthorized,
State_Active,
State_Completed,
State_Failed,
State_Cancelled
};
enum Storage
{
Storage_Memory,
Storage_File,
Storage_None
};
wxWebRequest();
wxWebRequest(const wxWebRequest& other);
wxWebRequest& operator=(const wxWebRequest& other);
~wxWebRequest();
bool IsOk() const { return m_impl.get() != NULL; }
void SetHeader(const wxString& name, const wxString& value);
void SetMethod(const wxString& method);
void SetData(const wxString& text, const wxString& contentType, const wxMBConv& conv = wxConvUTF8);
bool SetData(wxInputStream* dataStream, const wxString& contentType, wxFileOffset dataSize = wxInvalidOffset);
void SetStorage(Storage storage);
Storage GetStorage() const;
void Start();
void Cancel();
wxWebResponse GetResponse() const;
wxWebAuthChallenge GetAuthChallenge() const;
int GetId() const;
wxWebSession& GetSession() const;
State GetState() const;
wxFileOffset GetBytesSent() const;
wxFileOffset GetBytesExpectedToSend() const;
wxFileOffset GetBytesReceived() const;
wxFileOffset GetBytesExpectedToReceive() const;
wxWebRequestHandle GetNativeHandle() const;
void DisablePeerVerify(bool disable = true);
bool IsPeerVerifyDisabled() const;
private:
// Ctor is used by wxWebSession and wxWebRequestImpl.
friend class wxWebSession;
friend class wxWebRequestImpl;
explicit wxWebRequest(const wxWebRequestImplPtr& impl);
wxWebRequestImplPtr m_impl;
};
extern WXDLLIMPEXP_DATA_NET(const char) wxWebSessionBackendWinHTTP[];
extern WXDLLIMPEXP_DATA_NET(const char) wxWebSessionBackendURLSession[];
extern WXDLLIMPEXP_DATA_NET(const char) wxWebSessionBackendCURL[];
class WXDLLIMPEXP_NET wxWebSession
{
public:
// Default ctor creates an invalid session object, only IsOpened() can be
// called on it.
wxWebSession();
wxWebSession(const wxWebSession& other);
wxWebSession& operator=(const wxWebSession& other);
~wxWebSession();
// Objects of this class can't be created directly, use the following
// factory functions to get access to them.
static wxWebSession& GetDefault();
static wxWebSession New(const wxString& backend = wxString());
// Can be used to check if the given backend is available without actually
// creating a session using it.
static bool IsBackendAvailable(const wxString& backend);
wxWebRequest
CreateRequest(wxEvtHandler* handler, const wxString& url, int id = wxID_ANY);
wxVersionInfo GetLibraryVersionInfo();
void AddCommonHeader(const wxString& name, const wxString& value);
void SetTempDir(const wxString& dir);
wxString GetTempDir() const;
bool IsOpened() const;
void Close();
wxWebSessionHandle GetNativeHandle() const;
private:
static void RegisterFactory(const wxString& backend,
wxWebSessionFactory* factory);
static void InitFactoryMap();
explicit wxWebSession(const wxWebSessionImplPtr& impl);
wxWebSessionImplPtr m_impl;
};
class WXDLLIMPEXP_NET wxWebRequestEvent : public wxEvent
{
public:
wxWebRequestEvent(wxEventType type = wxEVT_NULL,
int id = wxID_ANY,
wxWebRequest::State state = wxWebRequest::State_Idle,
const wxWebRequest& request = wxWebRequest(),
const wxWebResponse& response = wxWebResponse(),
const wxString& errorDesc = wxString())
: wxEvent(id, type),
m_state(state), m_request(request), m_response(response),
m_errorDescription(errorDesc)
{ }
wxWebRequest::State GetState() const { return m_state; }
const wxWebRequest& GetRequest() const { return m_request; }
const wxWebResponse& GetResponse() const { return m_response; }
const wxString& GetErrorDescription() const { return m_errorDescription; }
const wxString& GetDataFile() const { return m_dataFile; }
void SetDataFile(const wxString& dataFile) { m_dataFile = dataFile; }
const void* GetDataBuffer() const { return m_dataBuf.GetData(); }
size_t GetDataSize() const { return m_dataBuf.GetDataLen(); }
void SetDataBuffer(const wxMemoryBuffer& dataBuf) { m_dataBuf = dataBuf; }
wxEvent* Clone() const wxOVERRIDE { return new wxWebRequestEvent(*this); }
private:
wxWebRequest::State m_state;
const wxWebRequest m_request;
const wxWebResponse m_response; // may be invalid
wxString m_dataFile;
wxMemoryBuffer m_dataBuf;
wxString m_errorDescription;
};
wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_NET, wxEVT_WEBREQUEST_STATE, wxWebRequestEvent);
wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_NET, wxEVT_WEBREQUEST_DATA, wxWebRequestEvent);
#endif // wxUSE_WEBREQUEST
#endif // _WX_WEBREQUEST_H