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 * The Original Code is mozilla.org code.
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 * The Initial Developer of the Original Code is 
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 * Contributor(s):
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 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#ifndef __nsNntpIncomingServer_h
#define __nsNntpIncomingServer_h

#include "nsINntpIncomingServer.h"
#include "nsIUrlListener.h"
#include "nscore.h"

#include "nsMsgIncomingServer.h"

#include "prmem.h"
#include "plstr.h"
#include "prprf.h"

#include "nsEnumeratorUtils.h" 
#include "nsIMsgWindow.h"
#include "nsISubscribableServer.h"
#include "nsMsgLineBuffer.h"
#include "nsVoidArray.h"
#include "nsITimer.h"
#include "nsFileStream.h"

#include "nsITreeView.h"
#include "nsITreeSelection.h"
#include "nsIAtom.h"

class nsINntpUrl;
class nsIMsgMailNewsUrl;

/* get some implementation from nsMsgIncomingServer */
class nsNntpIncomingServer : public nsMsgIncomingServer,
                             public nsINntpIncomingServer,
                             public nsIUrlListener,
                             public nsISubscribableServer,
                             public nsMsgLineBuffer,
                             public nsITreeView
                             
{
public:
    NS_DECL_ISUPPORTS_INHERITED
    NS_DECL_NSINNTPINCOMINGSERVER
    NS_DECL_NSIURLLISTENER
    NS_DECL_NSISUBSCRIBABLESERVER
    NS_DECL_NSITREEVIEW

    nsNntpIncomingServer();
    virtual ~nsNntpIncomingServer();
    
    NS_IMETHOD GetLocalStoreType(char * *type);
    NS_IMETHOD CloseCachedConnections();
    NS_IMETHOD PerformBiff();
    NS_IMETHOD PerformExpand(nsIMsgWindow *aMsgWindow);
    NS_IMETHOD GetFilterList(nsIMsgWindow *aMsgWindow, nsIMsgFilterList **aResult);
    NS_IMETHOD OnUserOrHostNameChanged(const char *oldName, const char *newName);

    // for nsMsgLineBuffer
    virtual PRInt32 HandleLine(char *line, PRUint32 line_size);

    // override to clear all passwords associated with server
    NS_IMETHODIMP ForgetPassword();
    NS_IMETHOD GetCanSearchMessages(PRBool *canSearchMessages);
    NS_IMETHOD GetOfflineSupportLevel(PRInt32 *aSupportLevel);
    NS_IMETHOD GetDefaultCopiesAndFoldersPrefsToServer(PRBool *aCopiesAndFoldersOnServer);
    NS_IMETHOD GetCanCreateFoldersOnServer(PRBool *aCanCreateFoldersOnServer);
    NS_IMETHOD GetCanFileMessagesOnServer(PRBool *aCanFileMessagesOnServer);
    NS_IMETHOD GetFilterScope(nsMsgSearchScopeValue *filterScope);
    NS_IMETHOD GetSearchScope(nsMsgSearchScopeValue *searchScope);

    nsresult AppendIfSearchMatch(const char *newsgroupName);

protected:
    nsresult CreateProtocolInstance(nsINNTPProtocol ** aNntpConnection, nsIURI *url,
                                             nsIMsgWindow *window);
    PRBool ConnectionTimeOut(nsINNTPProtocol* aNntpConnection);
    nsCOMPtr<nsISupportsArray> m_connectionCache;
    NS_IMETHOD GetServerRequiresPasswordForBiff(PRBool *_retval);
    nsByteArray        mHostInfoInputStream;    
    nsresult SetupNewsrcSaveTimer();
    static void OnNewsrcSaveTimer(nsITimer *timer, void *voidIncomingServer);

private:
    nsCStringArray mSubscribedNewsgroups;
    nsCStringArray mGroupsOnServer;
    nsCStringArray mSubscribeSearchResult;
    // the list of of subscribed newsgroups within a given
    // subscribed dialog session.  
    // we need to keep track of them so we know what to show as "checked"
    // in the search view
    nsCStringArray mTempSubscribed;
    nsCOMPtr<nsIAtom> mSubscribedAtom;
    nsCOMPtr<nsIAtom> mNntpAtom;

    nsCString mSearchValue;
    nsCOMPtr<nsITreeBoxObject> mTree;
    nsCOMPtr<nsITreeSelection> mTreeSelection;

    PRBool   mHasSeenBeginGroups;
    nsresult WriteHostInfoFile();
    nsresult LoadHostInfoFile();
    nsresult AddGroupOnServer(const char *name);

    PRBool mNewsrcHasChanged;
    nsAdapterEnumerator *mGroupsEnumerator;
    PRBool mHostInfoLoaded;
    PRBool mHostInfoHasChanged;
    nsCOMPtr <nsIFileSpec> mHostInfoFile;
    
    PRUint32 mLastGroupDate;
    PRTime mFirstNewDate;
    PRInt32 mUniqueId;    
    PRUint32 mLastUpdatedTime;
    PRInt32 mVersion;
    PRBool mPostingAllowed;

    nsCOMPtr<nsITimer> mNewsrcSaveTimer;
    nsCOMPtr <nsIMsgWindow> mMsgWindow;

    nsCOMPtr <nsISubscribableServer> mInner;
    nsresult EnsureInner();
    nsresult ClearInner();
    nsresult IsValidRow(PRInt32 row);

    nsIOFileStream *mHostInfoStream;
    nsCOMPtr<nsIFileSpec> mNewsrcFilePath;
};

#endif
