/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All Rights Reserved.
 * 
 * The contents of this file constitute Original Code as defined in and are
 * subject to the Apple Public Source License Version 1.2 (the 'License').
 * You may not use this file except in compliance with the License. Please obtain
 * a copy of the License at http://www.apple.com/publicsource and read it before
 * using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
 * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
 * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
 * specific language governing rights and limitations under the License.
 */


/*
 *  DLDBListCFPref.h
 */
#ifndef _SECURITY_DLDBLISTCFPREF_H_
#define _SECURITY_DLDBLISTCFPREF_H_

#include <Security/SecKeychain.h>
#include <Security/cfutilities.h>
#include <CoreFoundation/CFDictionary.h>
#include <CoreFoundation/CFPreferences.h>
#include <Security/DLDBList.h>
#include <Security/cssmdb.h>
#include <stdexcept>
#include <CoreFoundation/CFNumber.h>
#include <CoreFoundation/CFDate.h>

namespace Security
{

class PasswordDBLookup
{
protected:
    string mDirectory;
    string mName;
    bool mValid;
    uid_t mCurrent;
    time_t mTime;

public:
    PasswordDBLookup ();
    
    void lookupInfoOnUID (uid_t uid);
    const string& getDirectory () {return mDirectory;}
    const string& getName () {return mName;}
};

class DLDbListCFPref
{
public:
    DLDbListCFPref(SecPreferencesDomain domain = kSecPreferencesDomainUser);
    ~DLDbListCFPref();
	
	void set(SecPreferencesDomain domain);
    
    void save();
    vector<DLDbIdentifier>& list() { return mSearchList; }

    static DLDbIdentifier cfDictionaryRefToDLDbIdentifier(CFDictionaryRef theDict);
    static CFDictionaryRef dlDbIdentifierToCFDictionaryRef(const DLDbIdentifier& dldbIdentifier);
	bool revert(bool force);

	void add(const DLDbIdentifier &);
	void remove(const DLDbIdentifier &);
	const vector<DLDbIdentifier> &searchList();
	void searchList(const vector<DLDbIdentifier> &);
	void defaultDLDbIdentifier(const DLDbIdentifier &);
	const DLDbIdentifier &defaultDLDbIdentifier();
	void loginDLDbIdentifier(const DLDbIdentifier &);
	const DLDbIdentifier &loginDLDbIdentifier();

    DLDbIdentifier LoginDLDbIdentifier();
    DLDbIdentifier JaguarLoginDLDbIdentifier();

    static string ExpandTildesInPath(const string &inPath);
	static string StripPathStuff(const string &inPath);
    static string AbbreviatedPath(const string &inPath);

protected:
	SecPreferencesDomain mDomain;
    bool hasChanged() const { return mChanged; }
    void changed(bool hasChanged) { mChanged = hasChanged; }

	enum PwInfoType
	{
		kHomeDir,
		kUsername
	};
    
    static PasswordDBLookup *mPdbLookup;
	static string getPwInfo(PwInfoType type);
    static void clearPWInfo ();

    void resetCachedValues();
	bool loadPropertyList(bool force);
	void writePropertyList();


private:
	CFAbsoluteTime mPrefsTimeStamp;
	struct timespec mTimespec;
	CFMutableDictionaryRef mPropertyList;

	string mPrefsPath, mHomeDir, mUserName;
	vector<DLDbIdentifier> mSearchList;
	DLDbIdentifier mDefaultDLDbIdentifier;
	DLDbIdentifier mLoginDLDbIdentifier;
    bool mChanged, mSearchListSet, mDefaultDLDbIdentifierSet, mLoginDLDbIdentifierSet;
};

class CCFValue
{
public:
    template <class T>
    T cfref() const { return reinterpret_cast<T>(CFTypeRef(mRef)); }

	CCFValue() {}
	CCFValue(CFTypeRef ref) : mRef(ref) {}
	CCFValue &operator =(CFTypeRef ref) { mRef = ref; return *this; }

    CCFValue &operator = (bool value)
    {
        mRef = value?kCFBooleanTrue:kCFBooleanFalse;
        return *this;
    }

/*
    CCFValue &operator = (const string &value) { string(value); return *this; }

    void string(const string &value, CFStringEncoding encoding=kCFStringEncodingMacRoman)
    {
        mRef = CFStringCreate();
CFStringRef CFStringCreateWithBytes(CFAllocatorRef alloc, const UInt8 *bytes, CFIndex numBytes, CFStringEncoding encoding, Boolean isExternalRepresentation);
        if (!mRef) throw std::bad_alloc;
        CFRelease(mRef);
    }
*/

    bool hasValue() const { return mRef; }

    operator bool() const
    {
        if (!mRef) return false;
        if (::CFGetTypeID(mRef) != ::CFBooleanGetTypeID())
            throw std::logic_error("wrong type in property list");

        return ::CFBooleanGetValue(cfref<CFBooleanRef>());
    }

    operator sint32() const
    {
        if (!mRef) return 0;
        if (::CFGetTypeID(mRef) != ::CFNumberGetTypeID())
            throw std::logic_error("wrong type in property list");
        
        sint32 val;
        ::CFNumberGetValue(cfref<CFNumberRef>(),kCFNumberSInt32Type,&val);
        return val;
    }

    operator uint32() const { return uint32(sint32(*this)); }

    operator const string() const { return getString(); }

    const string getString(CFStringEncoding encoding=kCFStringEncodingMacRoman) const
    {
        if (!mRef)
            throw std::logic_error("missing string in property list");
        if (::CFGetTypeID(mRef) != ::CFStringGetTypeID())
            throw std::logic_error("wrong type in property list");

        const char *tmpStr=::CFStringGetCStringPtr(cfref<CFStringRef>(),encoding);
        if (tmpStr == NULL)
        {
            CFIndex maxLen = CFStringGetMaximumSizeForEncoding(CFStringGetLength(cfref<CFStringRef>()), encoding);
            auto_array<char> buffer(maxLen + 1);

            if (!::CFStringGetCString(cfref<CFStringRef>(),buffer.get(),maxLen + 1,encoding))
                throw std::logic_error("could not convert string from property list");

            tmpStr=buffer.get();
            return string(tmpStr?tmpStr:"");
        }
        return string(tmpStr?tmpStr:"");
    }
private:
	CFCopyRef<CFTypeRef>mRef;
};

} // end namespace Security

#endif /* !_SECURITY_DLDBLISTCFPREF_H_ */