/*
 *	self-registerable dll functions for urlmon.dll
 *
 * Copyright (C) 2003 John K. Hohm
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdio.h>

#include "urlmon_main.h"

#include "winreg.h"
#include "advpub.h"

#include "wine/debug.h"
#include "wine/unicode.h"

WINE_DEFAULT_DEBUG_CHANNEL(urlmon);

/*
 * Near the bottom of this file are the exported DllRegisterServer and
 * DllUnregisterServer, which make all this worthwhile.
 */

/***********************************************************************
 *		interface for self-registering
 */
struct regsvr_interface
{
    IID const *iid;		/* NULL for end of list */
    LPCSTR name;		/* can be NULL to omit */
    IID const *base_iid;	/* can be NULL to omit */
    int num_methods;		/* can be <0 to omit */
    CLSID const *ps_clsid;	/* can be NULL to omit */
    CLSID const *ps_clsid32;	/* can be NULL to omit */
};

static HRESULT register_interfaces(struct regsvr_interface const *list);
static HRESULT unregister_interfaces(struct regsvr_interface const *list);

struct regsvr_coclass
{
    CLSID const *clsid;		/* NULL for end of list */
    LPCSTR name;		/* can be NULL to omit */
    LPCSTR ips;			/* can be NULL to omit */
    LPCSTR ips32;		/* can be NULL to omit */
    LPCSTR ips32_tmodel;	/* can be NULL to omit */
    LPCSTR progid;		/* can be NULL to omit */
    LPCSTR viprogid;		/* can be NULL to omit */
    LPCSTR progid_extra;	/* can be NULL to omit */
};

static HRESULT register_coclasses(struct regsvr_coclass const *list);
static HRESULT unregister_coclasses(struct regsvr_coclass const *list);

/***********************************************************************
 *		static string constants
 */
static WCHAR const interface_keyname[10] = {
    'I', 'n', 't', 'e', 'r', 'f', 'a', 'c', 'e', 0 };
static WCHAR const base_ifa_keyname[14] = {
    'B', 'a', 's', 'e', 'I', 'n', 't', 'e', 'r', 'f', 'a', 'c',
    'e', 0 };
static WCHAR const num_methods_keyname[11] = {
    'N', 'u', 'm', 'M', 'e', 't', 'h', 'o', 'd', 's', 0 };
static WCHAR const ps_clsid_keyname[15] = {
    'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
    'i', 'd', 0 };
static WCHAR const ps_clsid32_keyname[17] = {
    'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
    'i', 'd', '3', '2', 0 };
static WCHAR const clsid_keyname[6] = {
    'C', 'L', 'S', 'I', 'D', 0 };
static WCHAR const curver_keyname[7] = {
    'C', 'u', 'r', 'V', 'e', 'r', 0 };
static WCHAR const ips_keyname[13] = {
    'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
    0 };
static WCHAR const ips32_keyname[15] = {
    'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
    '3', '2', 0 };
static WCHAR const progid_keyname[7] = {
    'P', 'r', 'o', 'g', 'I', 'D', 0 };
static WCHAR const viprogid_keyname[25] = {
    'V', 'e', 'r', 's', 'i', 'o', 'n', 'I', 'n', 'd', 'e', 'p',
    'e', 'n', 'd', 'e', 'n', 't', 'P', 'r', 'o', 'g', 'I', 'D',
    0 };
static char const tmodel_valuename[] = "ThreadingModel";

/***********************************************************************
 *		static helper functions
 */
static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid);
static LONG register_key_defvalueW(HKEY base, WCHAR const *name,
				   WCHAR const *value);
static LONG register_key_defvalueA(HKEY base, WCHAR const *name,
				   char const *value);
static LONG register_progid(WCHAR const *clsid,
			    char const *progid, char const *curver_progid,
			    char const *name, char const *extra);

/***********************************************************************
 *		register_interfaces
 */
static HRESULT register_interfaces(struct regsvr_interface const *list)
{
    LONG res = ERROR_SUCCESS;
    HKEY interface_key;

    res = RegCreateKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0, NULL, 0,
			  KEY_READ | KEY_WRITE, NULL, &interface_key, NULL);
    if (res != ERROR_SUCCESS) goto error_return;

    for (; res == ERROR_SUCCESS && list->iid; ++list) {
	WCHAR buf[39];
	HKEY iid_key;

	StringFromGUID2(list->iid, buf, 39);
	res = RegCreateKeyExW(interface_key, buf, 0, NULL, 0,
			      KEY_READ | KEY_WRITE, NULL, &iid_key, NULL);
	if (res != ERROR_SUCCESS) goto error_close_interface_key;

	if (list->name) {
	    res = RegSetValueExA(iid_key, NULL, 0, REG_SZ,
				 (CONST BYTE*)(list->name),
				 strlen(list->name) + 1);
	    if (res != ERROR_SUCCESS) goto error_close_iid_key;
	}

	if (list->base_iid) {
	    res = register_key_guid(iid_key, base_ifa_keyname, list->base_iid);
	    if (res != ERROR_SUCCESS) goto error_close_iid_key;
	}

	if (0 <= list->num_methods) {
	    static WCHAR const fmt[3] = { '%', 'd', 0 };
	    HKEY key;

	    res = RegCreateKeyExW(iid_key, num_methods_keyname, 0, NULL, 0,
				  KEY_READ | KEY_WRITE, NULL, &key, NULL);
	    if (res != ERROR_SUCCESS) goto error_close_iid_key;

	    sprintfW(buf, fmt, list->num_methods);
	    res = RegSetValueExW(key, NULL, 0, REG_SZ,
				 (CONST BYTE*)buf,
				 (lstrlenW(buf) + 1) * sizeof(WCHAR));
	    RegCloseKey(key);

	    if (res != ERROR_SUCCESS) goto error_close_iid_key;
	}

	if (list->ps_clsid) {
	    res = register_key_guid(iid_key, ps_clsid_keyname, list->ps_clsid);
	    if (res != ERROR_SUCCESS) goto error_close_iid_key;
	}

	if (list->ps_clsid32) {
	    res = register_key_guid(iid_key, ps_clsid32_keyname, list->ps_clsid32);
	    if (res != ERROR_SUCCESS) goto error_close_iid_key;
	}

    error_close_iid_key:
	RegCloseKey(iid_key);
    }

error_close_interface_key:
    RegCloseKey(interface_key);
error_return:
    return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
}

/***********************************************************************
 *		unregister_interfaces
 */
static HRESULT unregister_interfaces(struct regsvr_interface const *list)
{
    LONG res = ERROR_SUCCESS;
    HKEY interface_key;

    res = RegOpenKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0,
			KEY_READ | KEY_WRITE, &interface_key);
    if (res == ERROR_FILE_NOT_FOUND) return S_OK;
    if (res != ERROR_SUCCESS) goto error_return;

    for (; res == ERROR_SUCCESS && list->iid; ++list) {
	WCHAR buf[39];

	StringFromGUID2(list->iid, buf, 39);
	res = RegDeleteTreeW(interface_key, buf);
	if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
    }

    RegCloseKey(interface_key);
error_return:
    return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
}

/***********************************************************************
 *		register_coclasses
 */
static HRESULT register_coclasses(struct regsvr_coclass const *list)
{
    LONG res = ERROR_SUCCESS;
    HKEY coclass_key;

    res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
			  KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
    if (res != ERROR_SUCCESS) goto error_return;

    for (; res == ERROR_SUCCESS && list->clsid; ++list) {
	WCHAR buf[39];
	HKEY clsid_key;

	StringFromGUID2(list->clsid, buf, 39);
	res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
			      KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
	if (res != ERROR_SUCCESS) goto error_close_coclass_key;

	if (list->name) {
	    res = RegSetValueExA(clsid_key, NULL, 0, REG_SZ,
				 (CONST BYTE*)(list->name),
				 strlen(list->name) + 1);
	    if (res != ERROR_SUCCESS) goto error_close_clsid_key;
	}

	if (list->ips) {
	    res = register_key_defvalueA(clsid_key, ips_keyname, list->ips);
	    if (res != ERROR_SUCCESS) goto error_close_clsid_key;
	}

	if (list->ips32) {
	    HKEY ips32_key;

	    res = RegCreateKeyExW(clsid_key, ips32_keyname, 0, NULL, 0,
				  KEY_READ | KEY_WRITE, NULL,
				  &ips32_key, NULL);
	    if (res != ERROR_SUCCESS) goto error_close_clsid_key;

	    res = RegSetValueExA(ips32_key, NULL, 0, REG_SZ,
				 (CONST BYTE*)list->ips32,
				 lstrlenA(list->ips32) + 1);
	    if (res == ERROR_SUCCESS && list->ips32_tmodel)
		res = RegSetValueExA(ips32_key, tmodel_valuename, 0, REG_SZ,
				     (CONST BYTE*)list->ips32_tmodel,
				     strlen(list->ips32_tmodel) + 1);
	    RegCloseKey(ips32_key);
	    if (res != ERROR_SUCCESS) goto error_close_clsid_key;
	}

	if (list->progid) {
	    res = register_key_defvalueA(clsid_key, progid_keyname,
					 list->progid);
	    if (res != ERROR_SUCCESS) goto error_close_clsid_key;

	    res = register_progid(buf, list->progid, NULL,
				  list->name, list->progid_extra);
	    if (res != ERROR_SUCCESS) goto error_close_clsid_key;
	}

	if (list->viprogid) {
	    res = register_key_defvalueA(clsid_key, viprogid_keyname,
					 list->viprogid);
	    if (res != ERROR_SUCCESS) goto error_close_clsid_key;

	    res = register_progid(buf, list->viprogid, list->progid,
				  list->name, list->progid_extra);
	    if (res != ERROR_SUCCESS) goto error_close_clsid_key;
	}

    error_close_clsid_key:
	RegCloseKey(clsid_key);
    }

error_close_coclass_key:
    RegCloseKey(coclass_key);
error_return:
    return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
}

/***********************************************************************
 *		unregister_coclasses
 */
static HRESULT unregister_coclasses(struct regsvr_coclass const *list)
{
    LONG res = ERROR_SUCCESS;
    HKEY coclass_key;

    res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
			KEY_READ | KEY_WRITE, &coclass_key);
    if (res == ERROR_FILE_NOT_FOUND) return S_OK;
    if (res != ERROR_SUCCESS) goto error_return;

    for (; res == ERROR_SUCCESS && list->clsid; ++list) {
	WCHAR buf[39];

	StringFromGUID2(list->clsid, buf, 39);
	res = RegDeleteTreeW(coclass_key, buf);
	if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
	if (res != ERROR_SUCCESS) goto error_close_coclass_key;

	if (list->progid) {
	    res = RegDeleteTreeA(HKEY_CLASSES_ROOT, list->progid);
	    if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
	    if (res != ERROR_SUCCESS) goto error_close_coclass_key;
	}

	if (list->viprogid) {
	    res = RegDeleteTreeA(HKEY_CLASSES_ROOT, list->viprogid);
	    if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
	    if (res != ERROR_SUCCESS) goto error_close_coclass_key;
	}
    }

error_close_coclass_key:
    RegCloseKey(coclass_key);
error_return:
    return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
}

/***********************************************************************
 *		regsvr_key_guid
 */
static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid)
{
    WCHAR buf[39];

    StringFromGUID2(guid, buf, 39);
    return register_key_defvalueW(base, name, buf);
}

/***********************************************************************
 *		regsvr_key_defvalueW
 */
static LONG register_key_defvalueW(
    HKEY base,
    WCHAR const *name,
    WCHAR const *value)
{
    LONG res;
    HKEY key;

    res = RegCreateKeyExW(base, name, 0, NULL, 0,
			  KEY_READ | KEY_WRITE, NULL, &key, NULL);
    if (res != ERROR_SUCCESS) return res;
    res = RegSetValueExW(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
			 (lstrlenW(value) + 1) * sizeof(WCHAR));
    RegCloseKey(key);
    return res;
}

/***********************************************************************
 *		regsvr_key_defvalueA
 */
static LONG register_key_defvalueA(
    HKEY base,
    WCHAR const *name,
    char const *value)
{
    LONG res;
    HKEY key;

    res = RegCreateKeyExW(base, name, 0, NULL, 0,
			  KEY_READ | KEY_WRITE, NULL, &key, NULL);
    if (res != ERROR_SUCCESS) return res;
    res = RegSetValueExA(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
			 lstrlenA(value) + 1);
    RegCloseKey(key);
    return res;
}

/***********************************************************************
 *		regsvr_progid
 */
static LONG register_progid(
    WCHAR const *clsid,
    char const *progid,
    char const *curver_progid,
    char const *name,
    char const *extra)
{
    LONG res;
    HKEY progid_key;

    res = RegCreateKeyExA(HKEY_CLASSES_ROOT, progid, 0,
			  NULL, 0, KEY_READ | KEY_WRITE, NULL,
			  &progid_key, NULL);
    if (res != ERROR_SUCCESS) return res;

    if (name) {
	res = RegSetValueExA(progid_key, NULL, 0, REG_SZ,
			     (CONST BYTE*)name, strlen(name) + 1);
	if (res != ERROR_SUCCESS) goto error_close_progid_key;
    }

    if (clsid) {
	res = register_key_defvalueW(progid_key, clsid_keyname, clsid);
	if (res != ERROR_SUCCESS) goto error_close_progid_key;
    }

    if (curver_progid) {
	res = register_key_defvalueA(progid_key, curver_keyname,
				     curver_progid);
	if (res != ERROR_SUCCESS) goto error_close_progid_key;
    }

    if (extra) {
	HKEY extra_key;

	res = RegCreateKeyExA(progid_key, extra, 0,
			      NULL, 0, KEY_READ | KEY_WRITE, NULL,
			      &extra_key, NULL);
	if (res == ERROR_SUCCESS)
	    RegCloseKey(extra_key);
    }

error_close_progid_key:
    RegCloseKey(progid_key);
    return res;
}

/***********************************************************************
 *		coclass list
 */
static struct regsvr_coclass const coclass_list[] = {
    {   &CLSID_StdURLMoniker,
	"URL Moniker",
	NULL,
	"urlmon.dll",
	"Apartment"
    },
    {   &CLSID_CdlProtocol,
        "CDL: Asynchronous Pluggable Protocol Handler",
        NULL,
        "urlmon.dll",
        "Apartment"
    },
    {   &CLSID_FileProtocol,
        "file:, local: Asynchronous Pluggable Protocol Handler",
        NULL,
        "urlmon.dll",
        "Apartment"
    },
    {   &CLSID_FtpProtocol,
        "ftp: Asynchronous Pluggable Protocol Handler",
        NULL,
        "urlmon.dll",
        "Apartment"
    },
    {   &CLSID_GopherProtocol,
        "gopher: Asynchronous Pluggable Protocol Handler",
        NULL,
        "urlmon.dll",
        "Apartment"
    },
    {   &CLSID_HttpProtocol,
        "http: Asynchronous Pluggable Protocol Handler",
        NULL,
        "urlmon.dll",
        "Apartment"
    },
    {   &CLSID_HttpSProtocol,
        "https: Asynchronous Pluggable Protocol Handler",
        NULL,
        "urlmon.dll",
        "Apartment"
    },
    {   &CLSID_MkProtocol,
        "mk: Asynchronous Pluggable Protocol Handler",
        NULL,
        "urlmon.dll",
        "Apartment"
    },
    {   &CLSID_InternetSecurityManager,
        "Security Manager",
        NULL,
        "urlmon.dll",
        "Both"
    },
    {   &CLSID_InternetZoneManager,
        "URL Zone Manager",
        NULL,
        "urlmon.dll",
        "Both"
    },
    {   &CLSID_PSFactoryBuffer,
        "URLMoniker ProxyStub Factory",
        NULL,
        "urlmon.dll",
        "Apartment"
    },
    { NULL }			/* list terminator */
};

/***********************************************************************
 *		interface list
 */

static struct regsvr_interface const interface_list[] = {
    { NULL }			/* list terminator */
};

/***********************************************************************
 *              register_inf
 */

#define INF_SET_CLSID(clsid)                  \
    do                                        \
    {                                         \
        static CHAR name[] = #clsid;          \
                                              \
        pse[i].pszName = name;                \
        clsids[i++] = &clsid;                 \
    } while (0)

static HRESULT register_inf(BOOL doregister)
{
    HRESULT hres;
    HMODULE hAdvpack;
    HRESULT (WINAPI *pRegInstall)(HMODULE hm, LPCSTR pszSection, const STRTABLEA* pstTable);
    STRTABLEA strtable;
    STRENTRYA pse[8];
    static CLSID const *clsids[8];
    unsigned int i = 0;

    static const WCHAR wszAdvpack[] = {'a','d','v','p','a','c','k','.','d','l','l',0};

    INF_SET_CLSID(CLSID_CdlProtocol);
    INF_SET_CLSID(CLSID_FileProtocol);
    INF_SET_CLSID(CLSID_FtpProtocol);
    INF_SET_CLSID(CLSID_GopherProtocol);
    INF_SET_CLSID(CLSID_HttpProtocol);
    INF_SET_CLSID(CLSID_HttpSProtocol);
    INF_SET_CLSID(CLSID_MkProtocol);
    INF_SET_CLSID(CLSID_DeCompMimeFilter);

    for(i = 0; i < sizeof(pse)/sizeof(pse[0]); i++) {
        pse[i].pszValue = heap_alloc(39);
        sprintf(pse[i].pszValue, "{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}",
                clsids[i]->Data1, clsids[i]->Data2, clsids[i]->Data3, clsids[i]->Data4[0],
                clsids[i]->Data4[1], clsids[i]->Data4[2], clsids[i]->Data4[3], clsids[i]->Data4[4],
                clsids[i]->Data4[5], clsids[i]->Data4[6], clsids[i]->Data4[7]);
    }

    strtable.cEntries = sizeof(pse)/sizeof(pse[0]);
    strtable.pse = pse;

    hAdvpack = LoadLibraryW(wszAdvpack);
    pRegInstall = (void *)GetProcAddress(hAdvpack, "RegInstall");

    hres = pRegInstall(hProxyDll, doregister ? "RegisterDll" : "UnregisterDll", &strtable);

    for(i=0; i < sizeof(pse)/sizeof(pse[0]); i++)
        heap_free(pse[i].pszValue);

    return hres;
}

#undef INF_SET_CLSID

/***********************************************************************
 *		DllRegisterServer (URLMON.@)
 */
HRESULT WINAPI DllRegisterServer(void)
{
    HRESULT hr;

    TRACE("\n");

    hr = URLMON_DllRegisterServer();
    if(SUCCEEDED(hr))
        hr = register_coclasses(coclass_list);
    if(SUCCEEDED(hr))
	hr = register_interfaces(interface_list);
    if(SUCCEEDED(hr))
        hr = register_inf(TRUE);
    return hr;
}

/***********************************************************************
 *		DllUnregisterServer (URLMON.@)
 */
HRESULT WINAPI DllUnregisterServer(void)
{
    HRESULT hr;

    TRACE("\n");

    hr = URLMON_DllUnregisterServer();
    if(SUCCEEDED(hr))
        hr = unregister_coclasses(coclass_list);
    if(SUCCEEDED(hr))
	hr = unregister_interfaces(interface_list);
    if(SUCCEEDED(hr))
        hr = register_inf(FALSE);
    return hr;
}