Windows2003-3790/shell/cpls/inetcpl/proxysup.cpp
2020-09-30 16:53:55 +02:00

1757 lines
44 KiB
C++

/*++
Copyright (c) 1996 Microsoft Corporation
Module Name:
proxysup.c
Abstract:
Contains implementation for proxy server and proxy bypass list
dialog interface.
WARNING: Changes in this code need to be syncronizated
with changes in proxysup.cxx in the WININET project.
Contents:
Author:
Arthur L Bierer (arthurbi) 18-Apr-1996
Revision History:
18-Apr-1996 arthurbi
Created
--*/
#include "inetcplp.h"
#include <mluisupp.h>
// Disable warning for VC6 (ASSERT macro causing the problem)
#pragma warning(4:4509) // nonstandard extension used: 'ftn' uses SEH and 'object' has destructor
//
// Don't use CRTs so define our own isdigit
//
#undef isdigit
#define isdigit(ch) (ch >= '0' && ch <= '9')
//
// ARRAY_ELEMENTS - returns number of elements in array
//
#define ARRAY_ELEMENTS(array) (sizeof(array)/sizeof(array[0]))
#define GET_TERMINATOR(string) while(*string != '\0') string++
#define IS_BLANK(string) (*string == '\0')
//
// private types
//
typedef enum {
STATE_START,
STATE_PROTOCOL,
STATE_SCHEME,
STATE_SERVER,
STATE_PORT,
STATE_END,
STATE_ERROR
} PARSER_STATE;
typedef struct tagMY_URL_SCHEME
{
LPSTR SchemeName;
DWORD SchemeLength;
INTERNET_SCHEME SchemeType;
DWORD dwControlId;
DWORD dwPortControlId;
} MY_URL_SCHEME;
const MY_URL_SCHEME UrlSchemeList[] =
{
NULL, 0, INTERNET_SCHEME_DEFAULT,IDC_NOTUSED, IDC_NOTUSED,
"ftp", 3, INTERNET_SCHEME_FTP, IDC_PROXY_FTP_ADDRESS, IDC_PROXY_FTP_PORT,
"gopher", 6, INTERNET_SCHEME_GOPHER, IDC_PROXY_GOPHER_ADDRESS, IDC_PROXY_GOPHER_PORT,
"http", 4, INTERNET_SCHEME_HTTP, IDC_PROXY_HTTP_ADDRESS, IDC_PROXY_HTTP_PORT,
"https", 5, INTERNET_SCHEME_HTTPS, IDC_PROXY_SECURITY_ADDRESS, IDC_PROXY_SECURITY_PORT,
"socks", 5, INTERNET_SCHEME_SOCKS, IDC_PROXY_SOCKS_ADDRESS, IDC_PROXY_SOCKS_PORT,
};
#define INTERNET_MAX_PORT_LENGTH sizeof("123456789")
typedef struct tagBEFOREUSESAME
{
// addresses
TCHAR szFTP [ INTERNET_MAX_URL_LENGTH + 1 ];
TCHAR szGOPHER [ INTERNET_MAX_URL_LENGTH + 1 ];
TCHAR szSECURE [ INTERNET_MAX_URL_LENGTH + 1 ];
TCHAR szSOCKS [ INTERNET_MAX_URL_LENGTH + 1 ];
// ports
TCHAR szFTPport [ INTERNET_MAX_PORT_LENGTH + 1 ];
TCHAR szGOPHERport [ INTERNET_MAX_PORT_LENGTH + 1 ];
TCHAR szSECUREport [ INTERNET_MAX_PORT_LENGTH + 1 ];
TCHAR szSOCKSport [ INTERNET_MAX_PORT_LENGTH + 1 ];
} BEFOREUSESAME, *LPBEFOREUSESAME;
static const int g_iProxies[] = {IDC_PROXY_HTTP_ADDRESS, IDC_PROXY_FTP_ADDRESS, IDC_PROXY_GOPHER_ADDRESS, IDC_PROXY_SECURITY_ADDRESS, IDC_PROXY_SOCKS_ADDRESS};
typedef struct tagPROXYPAGE
{
LPBEFOREUSESAME lpOldSettings;
BOOL fNT;
LPPROXYINFO lpi;
HINSTANCE hinstUrlMon; // runtime load URLMON.DLL
} PROXYPAGE, *LPPROXYPAGE;
extern const TCHAR cszLocalString[] = TEXT("<local>");
#define MAX_SCHEME_NAME_LENGTH sizeof("gopher")
#define MAX_TITLE 80
#define MAX_DIALOG_MESSAGE 300
//
// private function prototypes
//
LPBEFOREUSESAME SaveCurrentSettings(HWND hDlg);
void RestorePreviousSettings(HWND hDlg, LPBEFOREUSESAME lpSave);
BOOL
ProxyDlgInitProxyServers(
IN HWND hDlg
);
BOOL
ProxyDlgOK(
IN HWND hDlg
);
BOOL
ProxyDlgInit(
IN HWND hDlg, LPARAM lParam
);
VOID
EnableProxyControls(
IN HWND hDlg
);
BOOL
IsProxyValid(
IN HWND hDlg
);
BOOL
ParseEditCtlForPort(
IN OUT LPSTR lpszProxyName,
IN HWND hDlg,
IN DWORD dwProxyNameCtlId,
IN DWORD dwProxyPortCtlId
);
BOOL
FormatOutProxyEditCtl(
IN HWND hDlg,
IN DWORD dwProxyNameCtlId,
IN DWORD dwProxyPortCtlId,
OUT LPSTR lpszOutputStr,
IN OUT LPDWORD lpdwOutputStrSize,
IN DWORD dwOutputStrLength,
IN BOOL fDefaultProxy
);
INTERNET_SCHEME
MapUrlSchemeName(
IN LPSTR lpszSchemeName,
IN DWORD dwSchemeNameLength
);
DWORD
MapUrlSchemeTypeToCtlId(
IN INTERNET_SCHEME SchemeType,
IN BOOL fIdForPortCtl
);
BOOL
MapCtlIdUrlSchemeName(
IN DWORD dwEditCtlId,
OUT LPSTR lpszSchemeOut
);
DWORD
MapAddrCtlIdToPortCtlId(
IN DWORD dwEditCtlId
);
BOOL
RemoveLocalFromExceptionList(
IN LPTSTR lpszExceptionList
);
//
// functions
//
/*******************************************************************
NAME: ProxyDlgProc
SYNOPSIS: Proxy property sheet dialog proc.
********************************************************************/
INT_PTR CALLBACK ProxyDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam,
LPARAM lParam)
{
LPPROXYPAGE pPxy= (LPPROXYPAGE) GetWindowLongPtr(hDlg, DWLP_USER);
switch (uMsg)
{
case WM_INITDIALOG:
{
BOOL fInited;
fInited = ProxyDlgInit(hDlg, lParam);
return fInited;
}
case WM_NOTIFY:
{
NMHDR * lpnm = (NMHDR *) lParam;
switch (lpnm->code)
{
case PSN_APPLY:
{
BOOL fRet = ProxyDlgOK(hDlg);
SetPropSheetResult(hDlg,!fRet);
return !fRet;
break;
}
case PSN_RESET:
SetPropSheetResult(hDlg,FALSE);
break;
}
break;
}
case WM_COMMAND:
switch (GET_WM_COMMAND_ID(wParam, lParam))
{
case IDC_PROXY_ENABLE:
EnableProxyControls(hDlg);
break;
case IDC_PROXY_HTTP_ADDRESS:
case IDC_PROXY_GOPHER_ADDRESS:
case IDC_PROXY_SECURITY_ADDRESS:
case IDC_PROXY_FTP_ADDRESS:
case IDC_PROXY_SOCKS_ADDRESS:
if ( GET_WM_COMMAND_CMD(wParam, lParam) == EN_KILLFOCUS )
{
ParseEditCtlForPort(NULL, hDlg, (GET_WM_COMMAND_ID(wParam, lParam)), 0);
EnableProxyControls(hDlg);
}
break;
case IDC_PROXY_HTTP_PORT:
case IDC_PROXY_GOPHER_PORT:
case IDC_PROXY_SECURITY_PORT:
case IDC_PROXY_FTP_PORT:
case IDC_PROXY_SOCKS_PORT:
if ( GET_WM_COMMAND_CMD(wParam, lParam) == EN_KILLFOCUS )
{
EnableProxyControls(hDlg);
}
break;
case IDC_PROXY_USE_SAME_SERVER:
if ( GET_WM_COMMAND_CMD(wParam, lParam) == BN_CLICKED )
{
if (IsDlgButtonChecked(hDlg, IDC_PROXY_USE_SAME_SERVER))
pPxy->lpOldSettings = SaveCurrentSettings(hDlg);
else if (pPxy->lpOldSettings !=NULL)
{
RestorePreviousSettings(hDlg, pPxy->lpOldSettings);
pPxy->lpOldSettings = NULL;
}
EnableProxyControls(hDlg);
}
break;
case IDOK:
if ( GET_WM_COMMAND_CMD(wParam, lParam) == BN_CLICKED )
{
BOOL fLeaveDialog = TRUE;
if (!IsProxyValid(hDlg))
{
// The proxy is invalid, so we need to ask the user if they want to turn it off.
TCHAR szTitle[MAX_TITLE];
TCHAR szMessage[MAX_DIALOG_MESSAGE];
int nUserResponce;
MLLoadShellLangString(IDS_INVALID_PROXY_TITLE, szTitle, ARRAYSIZE(szTitle));
MLLoadShellLangString(IDS_INVALID_PROXY, szMessage, ARRAYSIZE(szMessage));
// Ask the user if they want to turn off the proxy.
nUserResponce = MessageBox(hDlg, szMessage, szTitle, MB_YESNOCANCEL | MB_ICONERROR);
if (IDYES == nUserResponce)
pPxy->lpi->fEnable = FALSE;
else if (IDCANCEL == nUserResponce)
fLeaveDialog = FALSE; // The user hit cancel, so let's not leave the dialog.
}
if (fLeaveDialog)
{
//
// Read the Ctls and Save out to the proxy..
//
ProxyDlgOK(hDlg);
EndDialog(hDlg, IDOK);
}
}
break;
case IDCANCEL:
if ( GET_WM_COMMAND_CMD(wParam, lParam) == BN_CLICKED )
{
EndDialog(hDlg, IDCANCEL);
}
break;
}
break;
case WM_DESTROY:
if (pPxy->lpOldSettings)
LocalFree(pPxy->lpOldSettings);
if (pPxy->hinstUrlMon)
FreeLibrary(pPxy->hinstUrlMon);
LocalFree(pPxy);
return TRUE;
case WM_HELP: // F1
ResWinHelp((HWND) ((LPHELPINFO)lParam)->hItemHandle, IDS_HELPFILE,
HELP_WM_HELP, (DWORD_PTR)(LPSTR)mapIDCsToIDHs);
break;
case WM_CONTEXTMENU: // right mouse click
ResWinHelp((HWND)wParam, IDS_HELPFILE,
HELP_CONTEXTMENU, (DWORD_PTR)(LPSTR)mapIDCsToIDHs);
break;
default:
return FALSE;
}
return TRUE;
}
//
// Private Functions.
//
VOID
EnableProxyControls(HWND hDlg)
/*++
Routine Description:
Enables controls appropriately depending on what
checkboxes are checked.
Arguments:
hDlg - Page Dialog Box.
Return Value:
VOID
--*/
{
BOOL fNT = ((LPPROXYPAGE)GetWindowLongPtr(hDlg, DWLP_USER))->fNT;
BOOL fEnable = !g_restrict.fProxy;
BOOL fUseOneProxy = IsDlgButtonChecked(hDlg,IDC_PROXY_USE_SAME_SERVER);
EnableDlgItem(hDlg,IDC_GRP_SETTINGS2, fEnable);
EnableDlgItem(hDlg,IDC_PROXY_EXCEPTIONS_GROUPBOX, fEnable);
EnableDlgItem(hDlg,IDC_TYPE_TEXT, fEnable);
EnableDlgItem(hDlg,IDC_ADDR_TEXT, fEnable);
EnableDlgItem(hDlg,IDC_PORT_TEXT, fEnable);
EnableDlgItem(hDlg,IDC_EXCEPT_TEXT, fEnable);
EnableDlgItem(hDlg,IDC_EXCEPT2_TEXT, fEnable);
EnableDlgItem(hDlg,IDC_PROXY_ICON1, fEnable);
EnableDlgItem(hDlg,IDC_PROXY_ICON2, fEnable);
EnableDlgItem(hDlg,IDC_PROXY_HTTP_CAPTION, fEnable);
EnableDlgItem(hDlg,IDC_PROXY_SECURITY_CAPTION, fEnable);
EnableDlgItem(hDlg,IDC_PROXY_FTP_CAPTION, fEnable);
EnableDlgItem(hDlg,IDC_PROXY_GOPHER_CAPTION, fEnable);
EnableDlgItem(hDlg,IDC_PROXY_SOCKS_CAPTION, fEnable);
EnableDlgItem(hDlg, IDC_PROXY_USE_SAME_SERVER, fEnable);
EnableDlgItem(hDlg,IDC_PROXY_HTTP_ADDRESS,fEnable);
EnableDlgItem(hDlg,IDC_PROXY_HTTP_PORT,fEnable);
EnableDlgItem(hDlg,IDC_PROXY_OVERRIDE,fEnable);
//
// If we only want one Proxy, then make all others use the same
// proxy.
//
EnableDlgItem(hDlg,IDC_PROXY_SECURITY_ADDRESS,!fUseOneProxy && fEnable);
EnableDlgItem(hDlg,IDC_PROXY_SECURITY_PORT,!fUseOneProxy && fEnable);
EnableDlgItem(hDlg,IDC_PROXY_FTP_ADDRESS,!fUseOneProxy && fEnable);
EnableDlgItem(hDlg,IDC_PROXY_FTP_PORT,!fUseOneProxy && fEnable);
EnableDlgItem(hDlg,IDC_PROXY_GOPHER_ADDRESS,!fUseOneProxy && fEnable);
EnableDlgItem(hDlg,IDC_PROXY_GOPHER_PORT,!fUseOneProxy && fEnable);
EnableDlgItem(hDlg,IDC_PROXY_SOCKS_ADDRESS,!fUseOneProxy && fEnable);
EnableDlgItem(hDlg,IDC_PROXY_SOCKS_PORT,!fUseOneProxy && fEnable);
//
// If we only want one proxy, prepopulate the other fields
// so they use the the mirror of the first one.
//
if (fUseOneProxy)
{
TCHAR szProxyName[MAX_URL_STRING+1];
TCHAR szProxyPort[INTERNET_MAX_PORT_LENGTH];
GetDlgItemText(hDlg,
IDC_PROXY_HTTP_ADDRESS,
szProxyName,
ARRAYSIZE(szProxyName));
GetDlgItemText(hDlg,
IDC_PROXY_HTTP_PORT,
szProxyPort,
ARRAYSIZE(szProxyPort));
SetDlgItemText(hDlg,IDC_PROXY_SECURITY_ADDRESS,szProxyName);
SetDlgItemText(hDlg,IDC_PROXY_SECURITY_PORT,szProxyPort);
SetDlgItemText(hDlg,IDC_PROXY_FTP_ADDRESS,szProxyName);
SetDlgItemText(hDlg,IDC_PROXY_FTP_PORT,szProxyPort);
SetDlgItemText(hDlg,IDC_PROXY_GOPHER_ADDRESS,szProxyName);
SetDlgItemText(hDlg,IDC_PROXY_GOPHER_PORT,szProxyPort);
SetDlgItemText(hDlg,IDC_PROXY_SOCKS_ADDRESS,TEXT(""));
SetDlgItemText(hDlg,IDC_PROXY_SOCKS_PORT,TEXT(""));
}
}
//
// SaveCurrentSettings()
//
// Saves current settings... just in case user changes their mind.
//
// Returns a pointer to a structure filled with current settings.
//
LPBEFOREUSESAME SaveCurrentSettings(HWND hDlg)
{
LPBEFOREUSESAME lpSave = (LPBEFOREUSESAME)LocalAlloc(LPTR, sizeof(*lpSave));
if (!lpSave)
return lpSave; // if NULL return NULL
GetDlgItemText(hDlg, IDC_PROXY_FTP_ADDRESS, lpSave->szFTP, INTERNET_MAX_URL_LENGTH);
GetDlgItemText(hDlg, IDC_PROXY_GOPHER_ADDRESS, lpSave->szGOPHER, INTERNET_MAX_URL_LENGTH);
GetDlgItemText(hDlg, IDC_PROXY_SECURITY_ADDRESS, lpSave->szSECURE, INTERNET_MAX_URL_LENGTH);
GetDlgItemText(hDlg, IDC_PROXY_SOCKS_ADDRESS, lpSave->szSOCKS, INTERNET_MAX_URL_LENGTH);
GetDlgItemText(hDlg, IDC_PROXY_FTP_PORT, lpSave->szFTPport, INTERNET_MAX_URL_LENGTH);
GetDlgItemText(hDlg, IDC_PROXY_GOPHER_PORT, lpSave->szGOPHERport, INTERNET_MAX_URL_LENGTH);
GetDlgItemText(hDlg, IDC_PROXY_SECURITY_PORT, lpSave->szSECUREport, INTERNET_MAX_URL_LENGTH);
GetDlgItemText(hDlg, IDC_PROXY_SOCKS_PORT, lpSave->szSOCKSport, INTERNET_MAX_URL_LENGTH);
return lpSave;
} // SaveCurrentSettings()
//
// RestorePreviousSettings()
//
// Restores settings... just in case user changes their mind.
//
void RestorePreviousSettings(HWND hDlg, LPBEFOREUSESAME lpSave)
{
if (!lpSave)
return; // nothing to do
SetDlgItemText(hDlg, IDC_PROXY_FTP_ADDRESS, lpSave->szFTP );
SetDlgItemText(hDlg, IDC_PROXY_GOPHER_ADDRESS, lpSave->szGOPHER );
SetDlgItemText(hDlg, IDC_PROXY_SECURITY_ADDRESS, lpSave->szSECURE );
SetDlgItemText(hDlg, IDC_PROXY_SOCKS_ADDRESS, lpSave->szSOCKS );
SetDlgItemText(hDlg, IDC_PROXY_FTP_PORT, lpSave->szFTPport );
SetDlgItemText(hDlg, IDC_PROXY_GOPHER_PORT, lpSave->szGOPHERport );
SetDlgItemText(hDlg, IDC_PROXY_SECURITY_PORT, lpSave->szSECUREport );
SetDlgItemText(hDlg, IDC_PROXY_SOCKS_PORT, lpSave->szSOCKSport );
LocalFree(lpSave); // give back the memory
} // RestorePreviousSettings()
BOOL
ProxyDlgInit(
IN HWND hDlg, LPARAM lParam
)
/*++
Routine Description:
Initialization proc for proxy prop page
Arguments:
hDlg - Page Dialog Box.
Return Value:
BOOL
Success - TRUE
Failure - FALSE
--*/
{
BOOL fSuccess;
LPPROXYPAGE pPxy;
pPxy = (LPPROXYPAGE)LocalAlloc(LPTR, sizeof(*pPxy));
// NOTE: this NULLS lpOldSettings
if (!pPxy)
return FALSE; // no memory?
OSVERSIONINFOA osvi;
osvi.dwOSVersionInfoSize = sizeof(osvi);
GetVersionExA(&osvi);
pPxy->fNT = (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT);
ASSERT(pPxy->lpOldSettings == NULL);
// tell dialog where to get info
SetWindowLongPtr(hDlg, DWLP_USER, (LONG_PTR)pPxy);
pPxy->lpi = (LPPROXYINFO)lParam;
//
// Begin by reading and setting the list of proxy
// servers we have.
//
fSuccess = ProxyDlgInitProxyServers( hDlg );
if (!fSuccess)
return FALSE;
//
// read settings from registry, for the list of Exclusion Hosts.
//
RegEntry re(REGSTR_PATH_INTERNETSETTINGS,HKEY_CURRENT_USER);
if (re.GetError() == ERROR_SUCCESS)
{
BUFFER bufProxyString(MAX_URL_STRING+1);
if (!bufProxyString)
{
MsgBox(NULL,IDS_ERROutOfMemory,MB_ICONEXCLAMATION,MB_OK);
return FALSE;
}
//
// get proxy override settings from registry and stuff fields
// Prevent entry of more than (MAX_URL_STRING - ("<local>" + safety))
SendMessage(GetDlgItem(hDlg, IDC_PROXY_OVERRIDE), EM_SETLIMITTEXT, (WPARAM)ARRAYSIZE(pPxy->lpi->szOverride)-20, 0);
SetDlgItemText(hDlg, IDC_PROXY_OVERRIDE, pPxy->lpi->szOverride);
}
//
// initialize the UI appropriately
//
EnableProxyControls(hDlg);
return TRUE;
}
BOOL
ProxyDlgOK(
IN HWND hDlg
)
/*++
Routine Description:
OK button handler for proxy prop page
Arguments:
hDlg - Page Dialog Box.
Return Value:
BOOL
Success - TRUE
Failure - FALSE
--*/
{
LPPROXYPAGE pPxy = (LPPROXYPAGE)GetWindowLongPtr(hDlg, DWLP_USER);
TCHAR szProxyListOutputBuffer[MAX_URL_STRING];
CHAR szProxyListOutputBufferA[MAX_URL_STRING];
DWORD dwBufferOffset = 0;
//
// Get the state of our two check boxes.
//
BOOL fUseOneProxy =
IsDlgButtonChecked(hDlg,IDC_PROXY_USE_SAME_SERVER);
//
// Open our Registry Key.
//
RegEntry re(REGSTR_PATH_INTERNETSETTINGS,HKEY_CURRENT_USER);
if (re.GetError() == ERROR_SUCCESS)
{
//
// Now Format, and write out the list of proxies to
// the registry. We special case the case of
// only proxy.
//
szProxyListOutputBufferA[dwBufferOffset] = '\0';
if ( fUseOneProxy )
{
FormatOutProxyEditCtl(
hDlg,
IDC_PROXY_HTTP_ADDRESS,
IDC_PROXY_HTTP_PORT,
szProxyListOutputBufferA,
&dwBufferOffset,
ARRAY_ELEMENTS(szProxyListOutputBufferA),
TRUE
);
}
else
{
for (int i = 1; i < ARRAY_ELEMENTS(UrlSchemeList); ++i)
{
FormatOutProxyEditCtl(
hDlg,
UrlSchemeList[i].dwControlId,
UrlSchemeList[i].dwPortControlId,
szProxyListOutputBufferA,
&dwBufferOffset,
ARRAY_ELEMENTS(szProxyListOutputBufferA),
FALSE
);
}
}
szProxyListOutputBufferA[dwBufferOffset] = '\0';
#ifdef UNICODE
SHAnsiToUnicode(szProxyListOutputBufferA, szProxyListOutputBuffer, MAX_URL_STRING);
#else
lstrcpy(szProxyListOutputBuffer, szProxyListOutputBufferA);
#endif
StrCpyN(pPxy->lpi->szProxy, szProxyListOutputBuffer, MAX_URL_STRING);
//
// Now Write out the Proxy Exception List
// (list of addresses to use for local connections)
//
szProxyListOutputBuffer[0] = '\0';
GetDlgItemText(hDlg,
IDC_PROXY_OVERRIDE,
szProxyListOutputBuffer,
ARRAY_ELEMENTS(szProxyListOutputBuffer));
StrCpyN(pPxy->lpi->szOverride, szProxyListOutputBuffer, MAX_URL_STRING);
}
else
{
AssertMsg(0, TEXT("Couldn't save settings to registry!"));
}
// let any active (participating) wininet's get notified
//
InternetSetOption(NULL, INTERNET_OPTION_SETTINGS_CHANGED, NULL, 0);
return TRUE;
}
INTERNET_SCHEME
MapUrlSchemeName(
IN LPSTR lpszSchemeName,
IN DWORD dwSchemeNameLength
)
/*++
Routine Description:
Maps a scheme name/length to a scheme name type
Arguments:
lpszSchemeName - pointer to name of scheme to map
dwSchemeNameLength - length of scheme (if -1, lpszSchemeName is ASCIZ)
Return Value:
INTERNET_SCHEME
--*/
{
if (dwSchemeNameLength == (DWORD)-1)
{
dwSchemeNameLength = (DWORD)lstrlenA(lpszSchemeName);
}
for (int i = 0; i < ARRAY_ELEMENTS(UrlSchemeList); ++i)
{
if (UrlSchemeList[i].SchemeLength == dwSchemeNameLength)
{
CHAR chBackup = lpszSchemeName[dwSchemeNameLength];
lpszSchemeName[dwSchemeNameLength] = '\0';
if(StrCmpIA(UrlSchemeList[i].SchemeName,lpszSchemeName) == 0)
{
lpszSchemeName[dwSchemeNameLength] = chBackup;
return UrlSchemeList[i].SchemeType;
}
lpszSchemeName[dwSchemeNameLength] = chBackup;
}
}
return INTERNET_SCHEME_UNKNOWN;
}
DWORD
MapUrlSchemeTypeToCtlId(
IN INTERNET_SCHEME SchemeType,
IN BOOL fIdForPortCtl
)
/*++
Routine Description:
Maps a scheme to a dlg child control id.
Arguments:
Scheme - Scheme to Map
fIdForPortCtl - If TRUE, means we really want the ID for a the PORT control
not the ADDRESS control.
Return Value:
DWORD
--*/
{
for (int i = 0; i < ARRAY_ELEMENTS(UrlSchemeList); ++i)
{
if (SchemeType == UrlSchemeList[i].SchemeType)
{
return (fIdForPortCtl ? UrlSchemeList[i].dwPortControlId :
UrlSchemeList[i].dwControlId );
}
}
return IDC_NOTUSED;
}
BOOL
MapCtlIdUrlSchemeName(
IN DWORD dwEditCtlId,
OUT LPSTR lpszSchemeOut
)
/*++
Routine Description:
Maps a dlg child control id to String represnting
the name of the scheme.
Arguments:
dwEditCtlId - Edit Control to Map Out.
lpszSchemeOut - Scheme to Map Out.
WARNING: ASSUMED to be size of largest scheme type.
Return Value:
BOOL
Success - TRUE
Failure - FALSE
--*/
{
ASSERT(lpszSchemeOut);
for (int i = 0; i < ARRAY_ELEMENTS(UrlSchemeList); ++i)
{
if (dwEditCtlId == UrlSchemeList[i].dwControlId )
{
StrCpyA(lpszSchemeOut, UrlSchemeList[i].SchemeName);
return TRUE;
}
}
return FALSE;
}
DWORD
MapAddrCtlIdToPortCtlId(
IN DWORD dwEditCtlId
)
/*++
Routine Description:
Maps a dlg child control id for addresses to
a dlg control id for ports.
Arguments:
dwEditCtlId - Edit Control to Map Out.
Return Value:
DWORD
Success - Correctly mapped ID.
Failure - 0.
--*/
{
for (int i = 0; i < ARRAY_ELEMENTS(UrlSchemeList); ++i)
{
if (dwEditCtlId == UrlSchemeList[i].dwControlId )
{
return UrlSchemeList[i].dwPortControlId ;
}
}
return FALSE;
}
BOOL
ProxyDlgInitProxyServers(
IN HWND hDlg
)
/*++
Routine Description:
Parses a list of proxy servers and sets them into the newly created
Proxy Dialog.
Ruthlessly stolen from RFirth's proxysup.cxx in WININET by
ArthurBi.
Arguments:
hDlg - HWin to add our stuff to.
Return Value:
BOOL
Success - TRUE
Failure - FALSE
Comments:
Designed to handle Proxy string entry of the Form:
pointer to list of proxies of the form:
[<protocol>=][<scheme>"://"]<server>[":"<port>][";"*]
The list can is read from the registry.
--*/
{
DWORD error = !ERROR_SUCCESS;
DWORD entryLength;
LPSTR protocolName;
DWORD protocolLength;
LPSTR schemeName;
DWORD schemeLength;
LPSTR serverName;
DWORD serverLength;
PARSER_STATE state;
DWORD nSlashes;
INTERNET_PORT port;
BOOL done;
LPSTR lpszList;
entryLength = 0;
protocolLength = 0;
schemeName = NULL;
schemeLength = 0;
serverName = NULL;
serverLength = 0;
state = STATE_PROTOCOL;
nSlashes = 0;
port = 0;
done = FALSE;
//
// Open the Reg Key.
//
RegEntry re(REGSTR_PATH_INTERNETSETTINGS,HKEY_CURRENT_USER);
if (re.GetError() != ERROR_SUCCESS)
return FALSE; // no REG values..
//
// Crack the Registry values, read the proxy list
//
BUFFER bufProxyString(MAX_URL_STRING+1);
BOOL fProxyEnabled;
if (!bufProxyString)
{
MsgBox(NULL,IDS_ERROutOfMemory,MB_ICONEXCLAMATION,MB_OK);
return FALSE;
}
//
// is proxy enabled?
// It should if we got into this dialog.
//
fProxyEnabled = (BOOL)re.GetNumber(REGSTR_VAL_PROXYENABLE,0);
//
// get proxy server and override settings from registry and stuff fields
//
re.GetString(REGSTR_VAL_PROXYSERVER,bufProxyString.QueryPtr(),
bufProxyString.QuerySize());
LPPROXYPAGE pPxy = (LPPROXYPAGE)GetWindowLongPtr(hDlg, DWLP_USER);
// if there's a proxy passed in from the main page, then use it; otherwise use the registry val
#ifndef UNICODE
lpszList = pPxy->lpi->szProxy;
#else
char* szList = NULL;
LPTSTR lpTmp = pPxy->lpi->szProxy;
DWORD cch = lstrlen(lpTmp) + 1;
szList = new char[2 * cch];
if (szList)
{
SHUnicodeToAnsi(lpTmp, szList, 2 * cch);
lpszList = szList;
}
else
{
MsgBox(NULL,IDS_ERROutOfMemory,MB_ICONEXCLAMATION,MB_OK);
return FALSE;
}
#endif
protocolName = lpszList;
//
// walk the list, pulling out the various scheme parts
//
do
{
char ch = *lpszList++;
if ((nSlashes == 1) && (ch != '/'))
{
state = STATE_ERROR;
break;
}
switch (ch)
{
case '=':
if ((state == STATE_PROTOCOL) && (entryLength != 0))
{
protocolLength = entryLength;
entryLength = 0;
state = STATE_SCHEME;
schemeName = lpszList;
}
else
{
//
// '=' can't legally appear anywhere else
//
state = STATE_ERROR;
}
break;
case ':':
switch (state)
{
case STATE_PROTOCOL:
if (*lpszList == '/')
{
schemeName = protocolName;
protocolName = NULL;
schemeLength = entryLength;
protocolLength = 0;
state = STATE_SCHEME;
}
else if (*lpszList != '\0')
{
serverName = protocolName;
serverLength = entryLength;
state = STATE_PORT;
}
else
{
state = STATE_ERROR;
}
entryLength = 0;
break;
case STATE_SCHEME:
if (*lpszList == '/')
{
schemeLength = entryLength;
}
else if (*lpszList != '\0')
{
serverName = schemeName;
serverLength = entryLength;
state = STATE_PORT;
}
else
{
state = STATE_ERROR;
}
entryLength = 0;
break;
case STATE_SERVER:
serverLength = entryLength;
state = STATE_PORT;
entryLength = 0;
break;
default:
state = STATE_ERROR;
break;
}
break;
case '/':
if ((state == STATE_SCHEME) && (nSlashes < 2) && (entryLength == 0))
{
if (++nSlashes == 2)
{
state = STATE_SERVER;
serverName = lpszList;
}
}
else
{
state = STATE_ERROR;
}
break;
case '\v': // vertical tab, 0x0b
case '\f': // form feed, 0x0c
if (!((state == STATE_PROTOCOL) && (entryLength == 0)))
{
//
// can't have embedded whitespace
//
state = STATE_ERROR;
}
break;
default:
if (state != STATE_PORT)
{
++entryLength;
}
else if (isdigit(ch))
{
//
// we will overflow if >65535
//
Assert(port < 65535);
port = port * 10 + (ch - '0');
}
else
{
//
// STATE_PORT && non-digit character - error
//
state = STATE_ERROR;
}
break;
case '\0':
done = TRUE;
//
// fall through
//
case ' ':
case '\t':
case '\n':
case '\r':
case ';':
case ',':
if (serverLength == 0)
{
serverLength = entryLength;
}
if (serverLength != 0)
{
if (serverName == NULL)
{
serverName = (schemeName != NULL)
? schemeName : protocolName;
}
ASSERT(serverName != NULL);
INTERNET_SCHEME protocol;
if (protocolLength != 0)
{
protocol = MapUrlSchemeName(protocolName, protocolLength);
}
else
{
protocol = INTERNET_SCHEME_DEFAULT;
}
INTERNET_SCHEME scheme;
if (schemeLength != 0)
{
scheme = MapUrlSchemeName(schemeName, schemeLength);
}
else
{
scheme = INTERNET_SCHEME_DEFAULT;
}
//
// add an entry if this is a protocol we handle and we don't
// already have an entry for it
//
if ((protocol != INTERNET_SCHEME_UNKNOWN)
&& (scheme != INTERNET_SCHEME_UNKNOWN))
{
DWORD dwCtlId = IDC_NOTUSED;
DWORD dwPortCtlId = IDC_NOTUSED;
CHAR chBackup;
error = ERROR_SUCCESS;
//
// we can only currently handle CERN proxies (unsecure or
// secure) so kick out anything that wants to go via a different
// proxy scheme
//
if (protocol == INTERNET_SCHEME_DEFAULT)
{
CheckDlgButton( hDlg, IDC_PROXY_USE_SAME_SERVER, TRUE );
dwCtlId = IDC_PROXY_HTTP_ADDRESS;
dwPortCtlId = IDC_PROXY_HTTP_PORT;
}
else
{
dwCtlId = MapUrlSchemeTypeToCtlId(protocol,FALSE);
dwPortCtlId = MapUrlSchemeTypeToCtlId(protocol,TRUE);
}
//
// Set the Field Entry.
//
LPSTR lpszProxyNameText;
if (scheme != INTERNET_SCHEME_DEFAULT)
{
ASSERT(schemeLength != 0);
lpszProxyNameText = schemeName;
}
else
lpszProxyNameText = serverName;
chBackup = serverName[serverLength];
serverName[serverLength] = '\0';
SetDlgItemTextA( hDlg, dwCtlId, lpszProxyNameText );
if ( port )
SetDlgItemInt( hDlg, dwPortCtlId, port, FALSE );
serverName[serverLength] = chBackup;
}
else
{
//
// bad/unrecognised protocol or scheme. Treat it as error
// for now
//
error = !ERROR_SUCCESS;
}
}
entryLength = 0;
protocolName = lpszList;
protocolLength = 0;
schemeName = NULL;
schemeLength = 0;
serverName = NULL;
serverLength = 0;
nSlashes = 0;
port = 0;
if (error == ERROR_SUCCESS)
{
state = STATE_PROTOCOL;
}
else
{
state = STATE_ERROR;
}
break;
}
if (state == STATE_ERROR)
{
break;
}
} while (!done);
#ifdef UNICODE
delete [] szList;
#endif
if (state == STATE_ERROR)
{
error = ERROR_INVALID_PARAMETER;
}
if ( error == ERROR_SUCCESS )
error = TRUE;
else
error = FALSE;
return error;
}
BOOL
IsProxyValid(
IN HWND hDlg
)
/*++
Routine Description:
Determines if the Proxy is valid. The proxy is invalid if
all of the proxy entries are empty.
Arguments:
hDlg - HWIN of the dialog to play with.
Return Value:
BOOL
Success TRUE - Valid.
FALSE - Invalid.
--*/
{
BOOL fProxyIsValid = FALSE;
TCHAR szProxyUrl[MAX_URL_STRING+1];
int iCurrentProxy = 0;
ASSERT(IsWindow(hDlg));
for (int iIndex = 0; iIndex < ARRAYSIZE(g_iProxies); iIndex++)
{
szProxyUrl[0] = '\0';
GetDlgItemText(hDlg,
g_iProxies[iIndex],
szProxyUrl,
sizeof(szProxyUrl));
if (szProxyUrl[0])
{
fProxyIsValid = TRUE;
break;
}
}
return fProxyIsValid;
}
BOOL
ParseEditCtlForPort(
IN OUT LPSTR lpszProxyName,
IN HWND hDlg,
IN DWORD dwProxyNameCtlId,
IN DWORD dwProxyPortCtlId
)
/*++
Routine Description:
Parses a Port Number off then end of a Proxy Server URL that is
located either in the Proxy Name Edit Box, or passed in as
a string pointer.
Arguments:
lpszProxyName - (OPTIONAL) string pointer with Proxy Name to parse, and
set into the Proxy Name edit ctl field.
hDlg - HWIN of the dialog to play with.
dwProxyNameCtlId - Res Ctl Id to play with.
dwProxyPortCtlId - Res Ctl Id of Port Number Edit Box.
Return Value:
BOOL
Success TRUE -
Failure FALSE
--*/
{
CHAR szProxyUrl[MAX_URL_STRING+1];
LPSTR lpszPort;
LPSTR lpszProxyUrl;
ASSERT(IsWindow(hDlg));
if ( dwProxyPortCtlId == 0 )
{
dwProxyPortCtlId = MapAddrCtlIdToPortCtlId(dwProxyNameCtlId);
ASSERT(dwProxyPortCtlId);
}
//
// Get the Proxy String from the Edit Control
// (OR) from the Registry [passed in]
//
if ( lpszProxyName )
lpszProxyUrl = lpszProxyName;
else
{
//
// Need to Grab it out of the edit control.
//
GetDlgItemTextA(hDlg,
dwProxyNameCtlId,
szProxyUrl,
sizeof(szProxyUrl));
lpszProxyUrl = szProxyUrl;
}
//
// Now find the port.
//
lpszPort = lpszProxyUrl;
GET_TERMINATOR(lpszPort);
lpszPort--;
//
// Walk backwards from the end of url looking
// for a port number sitting on the end like this
// http://proxy:1234
//
while ( (lpszPort > lpszProxyUrl) &&
(*lpszPort != ':') &&
(isdigit(*lpszPort)) )
{
lpszPort--;
}
//
// If we found a match for our rules
// then set the port, otherwise
// we assume the user knows what he's
// doing.
//
if ( *lpszPort == ':' && isdigit(*(lpszPort+1)) )
{
*lpszPort = '\0';
SetDlgItemTextA(hDlg, dwProxyPortCtlId, (lpszPort+1));
}
SetDlgItemTextA(hDlg, dwProxyNameCtlId, lpszProxyUrl);
return TRUE;
}
BOOL
FormatOutProxyEditCtl(
IN HWND hDlg,
IN DWORD dwProxyNameCtlId,
IN DWORD dwProxyPortCtlId,
OUT LPSTR lpszOutputStr,
IN OUT LPDWORD lpdwOutputStrSize,
IN DWORD dwOutputStrLength,
IN BOOL fDefaultProxy
)
/*++
Routine Description:
Combines Proxy URL components into a string that can be saved
in the registry. Can be called multiple times to build
a list of proxy servers, or once to special case a "default"
proxy.
Arguments:
hDlg - HWIN of the dialog to play with.
dwProxyNameCtlId - Res Ctl Id to play with.
dwProxyPortCtlId - Res Ctl Id of Port Number Edit Box.
lpszOutputStr - The start of the output string to send
the product of this function.
lpdwOutputStrSize - The amount of used space in lpszOutputStr
that is already used. New output should
start from (lpszOutputStr + *lpdwOutputStrSize)
fDefaultProxy - Default Proxy, don't add scheme= in front of the proxy
just use plop one proxy into the registry.
Return Value:
BOOL
Success TRUE
Failure FALSE
--*/
{
LPSTR lpszOutput;
LPSTR lpszEndOfOutputStr;
ASSERT(IsWindow(hDlg));
ASSERT(lpdwOutputStrSize);
lpszOutput = lpszOutputStr + *lpdwOutputStrSize;
lpszEndOfOutputStr = lpszOutputStr + dwOutputStrLength;
ASSERT( lpszEndOfOutputStr > lpszOutput );
if ( lpszEndOfOutputStr <= lpszOutput )
return FALSE; // bail out, ran out of space
//
// Plop ';' if we're not the first in this string buffer.
//
if (*lpdwOutputStrSize != 0 )
{
*lpszOutput = ';';
lpszOutput++;
if ( lpszEndOfOutputStr <= lpszOutput )
return FALSE; // bail out, ran out of space
}
//
// Put the schemetype= into the string
// ex: http=
//
if ( ! fDefaultProxy )
{
if ( lpszEndOfOutputStr <= (MAX_SCHEME_NAME_LENGTH + lpszOutput + 1) )
return FALSE; // bail out, ran out of space
if (!MapCtlIdUrlSchemeName(dwProxyNameCtlId,lpszOutput))
return FALSE;
lpszOutput += lstrlenA(lpszOutput);
*lpszOutput = '=';
lpszOutput++;
}
//
// Need to Grab ProxyUrl out of the edit control.
//
GetDlgItemTextA(hDlg, dwProxyNameCtlId, lpszOutput, (int)(lpszEndOfOutputStr - lpszOutput));
if ( IS_BLANK(lpszOutput) )
return FALSE;
//
// Now seperate out the port so we can save them seperately.
// But go past the Proxy Url while we're at it.
// ex: http=http://netscape-proxy
//
if (!ParseEditCtlForPort(lpszOutput, hDlg, dwProxyNameCtlId, dwProxyPortCtlId))
return FALSE;
lpszOutput += lstrlenA(lpszOutput);
//
// Now, add in a ':" for the port number, if we don't
// have a port we'll remove it.
//
{
*lpszOutput = ':';
lpszOutput++;
if ( lpszEndOfOutputStr <= lpszOutput )
return FALSE; // bail out, ran out of space
}
//
// Grab Proxy Port if its around.
// Back out the ':' if its not.
//
GetDlgItemTextA(hDlg, dwProxyPortCtlId,lpszOutput, (int)(lpszEndOfOutputStr - lpszOutput));
if ( IS_BLANK(lpszOutput) )
{
lpszOutput--;
ASSERT(*lpszOutput == ':');
*lpszOutput = '\0';
}
lpszOutput += lstrlenA(lpszOutput);
//
// Now we're done return our final sizes.
//
*lpdwOutputStrSize = (DWORD)(lpszOutput - lpszOutputStr);
return TRUE;
}
BOOL
RemoveLocalFromExceptionList(
IN LPTSTR lpszExceptionList
)
/*++
Routine Description:
Scans a delimited list of entries, and removed "<local>
if found. If <local> is found we return TRUE.
Arguments:
lpszExceptionList - String List of proxy excepion entries.
Return Value:
BOOL
TRUE - If found <local>
FALSE - If local was not found.
--*/
{
LPTSTR lpszLocalInstToRemove;
BOOL fFoundLocal;
if ( !lpszExceptionList || ! *lpszExceptionList )
return FALSE;
fFoundLocal = FALSE;
lpszLocalInstToRemove = lpszExceptionList;
//
// Loop looking "<local>" entries in the list.
//
do {
lpszLocalInstToRemove =
StrStrI(lpszLocalInstToRemove,cszLocalString);
if ( lpszLocalInstToRemove )
{
fFoundLocal = TRUE;
//
// Nuke <local> out of the string. <local>;otherstuff\0
// Dest is: '<'local>;otherstuff\0
// ??? (OR) ';'<local> if the ; is the first character.???
// Src is: >'o'therstuff\0
// size is: sizeof(';otherstuff\0')
//
MoveMemory(
lpszLocalInstToRemove,
(lpszLocalInstToRemove+lstrlen(cszLocalString)),
lstrlen(lpszLocalInstToRemove+lstrlen(cszLocalString))*sizeof(TCHAR)+sizeof(TCHAR)
);
}
} while (lpszLocalInstToRemove && *lpszLocalInstToRemove);
//
// If we produced a ; on the end, nuke it.
//
lpszLocalInstToRemove = lpszExceptionList;
GET_TERMINATOR(lpszLocalInstToRemove);
if ( lpszLocalInstToRemove != lpszExceptionList &&
*(lpszLocalInstToRemove-1) == ';' )
{
*(lpszLocalInstToRemove-1) = '\0';
}
return fFoundLocal;
}