install.c 62.7 KB
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/*
  IMPORTANT NOTE: IF THIS FILE IS CHANGED, WININST-6.EXE MUST BE RECOMPILED
  WITH THE MSVC6 WININST.DSW WORKSPACE FILE MANUALLY, AND WININST-7.1.EXE MUST
  BE RECOMPILED WITH THE MSVC 2003.NET WININST-7.1.VCPROJ FILE MANUALLY.

  IF CHANGES TO THIS FILE ARE CHECKED INTO PYTHON CVS, THE RECOMPILED BINARIES
  MUST BE CHECKED IN AS WELL!
*/

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/*
 * Written by Thomas Heller, May 2000
 *
 * $Id$
 */

/*
 * Windows Installer program for distutils.
 *
 * (a kind of self-extracting zip-file)
 *
 * At runtime, the exefile has appended:
 * - compressed setup-data in ini-format, containing the following sections:
 *	[metadata]
 *	author=Greg Ward
 *	author_email=gward@python.net
 *	description=Python Distribution Utilities
 *	licence=Python
 *	name=Distutils
 *	url=http://www.python.org/sigs/distutils-sig/
 *	version=0.9pre
 *
 *	[Setup]
 *	info= text to be displayed in the edit-box
 *	title= to be displayed by this program
 *	target_version = if present, python version required
 *	pyc_compile = if 0, do not compile py to pyc
 *	pyo_compile = if 0, do not compile py to pyo
 *
 * - a struct meta_data_hdr, describing the above
 * - a zip-file, containing the modules to be installed.
 *   for the format see http://www.pkware.com/appnote.html
 *
 * What does this program do?
 * - the setup-data is uncompressed and written to a temporary file.
 * - setup-data is queried with GetPrivateProfile... calls
 * - [metadata] - info is displayed in the dialog box
 * - The registry is searched for installations of python
 * - The user can select the python version to use.
 * - The python-installation directory (sys.prefix) is displayed
 * - When the start-button is pressed, files from the zip-archive
 *   are extracted to the file system. All .py filenames are stored
 *   in a list.
 */
/*
 * Includes now an uninstaller.
 */

/*
 * To Do:
 *
 * display some explanation when no python version is found
 * instead showing the user an empty listbox to select something from.
 *
 * Finish the code so that we can use other python installations
 * additionaly to those found in the registry,
 * and then #define USE_OTHER_PYTHON_VERSIONS
 *
 *  - install a help-button, which will display something meaningful
 *    to the poor user.
 *    text to the user
 *  - should there be a possibility to display a README file
 *    before starting the installation (if one is present in the archive)
 *  - more comments about what the code does(?)
 *
 *  - evolve this into a full blown installer (???)
 */

#include <windows.h>
#include <commctrl.h>
#include <imagehlp.h>
#include <objbase.h>
#include <shlobj.h>
#include <objidl.h>
#include "resource.h"

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <time.h>
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#include <sys/types.h>
#include <sys/stat.h>
#include <malloc.h>
#include <io.h>
#include <fcntl.h>
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#include "archive.h"

/* Only for debugging!
   static int dprintf(char *fmt, ...)
   {
   char Buffer[4096];
   va_list marker;
   int result;

   va_start(marker, fmt);
   result = wvsprintf(Buffer, fmt, marker);
   OutputDebugString(Buffer);
   return result;
   }
*/

/* Bah: global variables */
FILE *logfile;

char modulename[MAX_PATH];

HWND hwndMain;
HWND hDialog;

char *ini_file;			/* Full pathname of ini-file */
/* From ini-file */
char info[4096];		/* [Setup] info= */
char title[80];			/* [Setup] title=, contains package name
				   including version: "Distutils-1.0.1" */
char target_version[10];	/* [Setup] target_version=, required python
				   version or empty string */
char build_info[80];		/* [Setup] build_info=, distutils version
				   and build date */

char meta_name[80];		/* package name without version like
				   'Distutils' */
char install_script[MAX_PATH];
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char *pre_install_script; /* run before we install a single file */
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int py_major, py_minor;		/* Python version selected for installation */

char *arc_data;			/* memory mapped archive */
DWORD arc_size;			/* number of bytes in archive */
int exe_size;			/* number of bytes for exe-file portion */
char python_dir[MAX_PATH];
char pythondll[MAX_PATH];
BOOL pyc_compile, pyo_compile;
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/* Either HKLM or HKCU, depending on where Python itself is registered, and
   the permissions of the current user. */
HKEY hkey_root = (HKEY)-1;
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BOOL success;			/* Installation successfull? */
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char *failure_reason = NULL;
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HANDLE hBitmap;
char *bitmap_bytes;


#define WM_NUMFILES WM_USER+1
/* wParam: 0, lParam: total number of files */
#define WM_NEXTFILE WM_USER+2
/* wParam: number of this file */
/* lParam: points to pathname */

static BOOL notify(int code, char *fmt, ...);

/* Note: If scheme.prefix is nonempty, it must end with a '\'! */
/* Note: purelib must be the FIRST entry! */
SCHEME old_scheme[] = {
	{ "PURELIB", "" },
	{ "PLATLIB", "" },
	{ "HEADERS", "" }, /* 'Include/dist_name' part already in archive */
	{ "SCRIPTS", "Scripts\\" },
	{ "DATA", "" },
	{ NULL, NULL },
};

SCHEME new_scheme[] = {
	{ "PURELIB", "Lib\\site-packages\\" },
	{ "PLATLIB", "Lib\\site-packages\\" },
	{ "HEADERS", "" }, /* 'Include/dist_name' part already in archive */
	{ "SCRIPTS", "Scripts\\" },
	{ "DATA", "" },
	{ NULL, NULL },
};

static void unescape(char *dst, char *src, unsigned size)
{
	char *eon;
	char ch;

	while (src && *src && (size > 2)) {
		if (*src == '\\') {
			switch (*++src) {
			case 'n':
				++src;
				*dst++ = '\r';
				*dst++ = '\n';
				size -= 2;
				break;
			case 'r':
				++src;
				*dst++ = '\r';
				--size;
				break;
			case '0': case '1': case '2': case '3':
				ch = (char)strtol(src, &eon, 8);
				if (ch == '\n') {
					*dst++ = '\r';
					--size;
				}
				*dst++ = ch;
				--size;
				src = eon;
			}
		} else {
			*dst++ = *src++;
			--size;
		}
	}
	*dst = '\0';
}

static struct tagFile {
	char *path;
	struct tagFile *next;
} *file_list = NULL;

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static void set_failure_reason(char *reason)
{
    if (failure_reason)
	free(failure_reason);
    failure_reason = strdup(reason);
    success = FALSE;
}
static char *get_failure_reason()
{
    if (!failure_reason)
	return "Installation failed.";
    return failure_reason;
}

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static void add_to_filelist(char *path)
{
	struct tagFile *p;
	p = (struct tagFile *)malloc(sizeof(struct tagFile));
	p->path = strdup(path);
	p->next = file_list;
	file_list = p;
}

static int do_compile_files(int (__cdecl * PyRun_SimpleString)(char *),
			     int optimize)
{
	struct tagFile *p;
	int total, n;
	char Buffer[MAX_PATH + 64];
	int errors = 0;

	total = 0;
	p = file_list;
	while (p) {
		++total;
		p = p->next;
	}
	SendDlgItemMessage(hDialog, IDC_PROGRESS, PBM_SETRANGE, 0,
			    MAKELPARAM(0, total));
	SendDlgItemMessage(hDialog, IDC_PROGRESS, PBM_SETPOS, 0, 0);

	n = 0;
	p = file_list;
	while (p) {
		++n;
		wsprintf(Buffer,
			  "import py_compile; py_compile.compile (r'%s')",
			  p->path);
		if (PyRun_SimpleString(Buffer)) {
			++errors;
		}
		/* We send the notification even if the files could not
		 * be created so that the uninstaller will remove them
		 * in case they are created later.
		 */
		wsprintf(Buffer, "%s%c", p->path, optimize ? 'o' : 'c');
		notify(FILE_CREATED, Buffer);

		SendDlgItemMessage(hDialog, IDC_PROGRESS, PBM_SETPOS, n, 0);
		SetDlgItemText(hDialog, IDC_INFO, p->path);
		p = p->next;
	}
	return errors;
}

#define DECLPROC(dll, result, name, args)\
    typedef result (*__PROC__##name) args;\
    result (*name)args = (__PROC__##name)GetProcAddress(dll, #name)


#define DECLVAR(dll, type, name)\
    type *name = (type*)GetProcAddress(dll, #name)

typedef void PyObject;


/*
 * Returns number of files which failed to compile,
 * -1 if python could not be loaded at all
 */
static int compile_filelist(HINSTANCE hPython, BOOL optimize_flag)
{
	DECLPROC(hPython, void, Py_Initialize, (void));
	DECLPROC(hPython, void, Py_SetProgramName, (char *));
	DECLPROC(hPython, void, Py_Finalize, (void));
	DECLPROC(hPython, int, PyRun_SimpleString, (char *));
	DECLPROC(hPython, PyObject *, PySys_GetObject, (char *));
	DECLVAR(hPython, int, Py_OptimizeFlag);

	int errors = 0;
	struct tagFile *p = file_list;

	if (!p)
		return 0;

	if (!Py_Initialize || !Py_SetProgramName || !Py_Finalize)
		return -1;

	if (!PyRun_SimpleString || !PySys_GetObject || !Py_OptimizeFlag)
		return -1;

	*Py_OptimizeFlag = optimize_flag ? 1 : 0;
	Py_SetProgramName(modulename);
	Py_Initialize();

	errors += do_compile_files(PyRun_SimpleString, optimize_flag);
	Py_Finalize();

	return errors;
}

typedef PyObject *(*PyCFunction)(PyObject *, PyObject *);

struct PyMethodDef {
	char	*ml_name;
	PyCFunction  ml_meth;
	int		 ml_flags;
	char	*ml_doc;
};
typedef struct PyMethodDef PyMethodDef;

void *(*g_Py_BuildValue)(char *, ...);
int (*g_PyArg_ParseTuple)(PyObject *, char *, ...);

PyObject *g_PyExc_ValueError;
PyObject *g_PyExc_OSError;

PyObject *(*g_PyErr_Format)(PyObject *, char *, ...);

#define DEF_CSIDL(name) { name, #name }

struct {
	int nFolder;
	char *name;
} csidl_names[] = {
	/* Startup menu for all users.
	   NT only */
	DEF_CSIDL(CSIDL_COMMON_STARTMENU),
	/* Startup menu. */
	DEF_CSIDL(CSIDL_STARTMENU),

/*    DEF_CSIDL(CSIDL_COMMON_APPDATA), */
/*    DEF_CSIDL(CSIDL_LOCAL_APPDATA), */
	/* Repository for application-specific data.
	   Needs Internet Explorer 4.0 */
	DEF_CSIDL(CSIDL_APPDATA),

	/* The desktop for all users.
	   NT only */
	DEF_CSIDL(CSIDL_COMMON_DESKTOPDIRECTORY),
	/* The desktop. */
	DEF_CSIDL(CSIDL_DESKTOPDIRECTORY),

	/* Startup folder for all users.
	   NT only */
	DEF_CSIDL(CSIDL_COMMON_STARTUP),
	/* Startup folder. */
	DEF_CSIDL(CSIDL_STARTUP),

	/* Programs item in the start menu for all users.
	   NT only */
	DEF_CSIDL(CSIDL_COMMON_PROGRAMS),
	/* Program item in the user's start menu. */
	DEF_CSIDL(CSIDL_PROGRAMS),

/*    DEF_CSIDL(CSIDL_PROGRAM_FILES_COMMON), */
/*    DEF_CSIDL(CSIDL_PROGRAM_FILES), */

	/* Virtual folder containing fonts. */
	DEF_CSIDL(CSIDL_FONTS),
};

#define DIM(a) (sizeof(a) / sizeof((a)[0]))

static PyObject *FileCreated(PyObject *self, PyObject *args)
{
	char *path;
	if (!g_PyArg_ParseTuple(args, "s", &path))
		return NULL;
	notify(FILE_CREATED, path);
	return g_Py_BuildValue("");
}

static PyObject *DirectoryCreated(PyObject *self, PyObject *args)
{
	char *path;
	if (!g_PyArg_ParseTuple(args, "s", &path))
		return NULL;
	notify(DIR_CREATED, path);
	return g_Py_BuildValue("");
}

static PyObject *GetSpecialFolderPath(PyObject *self, PyObject *args)
{
	char *name;
	char lpszPath[MAX_PATH];
	int i;
	static HRESULT (WINAPI *My_SHGetSpecialFolderPath)(HWND hwnd,
							   LPTSTR lpszPath,
							   int nFolder,
							   BOOL fCreate);

	if (!My_SHGetSpecialFolderPath) {
		HINSTANCE hLib = LoadLibrary("shell32.dll");
		if (!hLib) {
			g_PyErr_Format(g_PyExc_OSError,
				       "function not available");
			return NULL;
		}
		My_SHGetSpecialFolderPath = (BOOL (WINAPI *)(HWND, LPTSTR,
							     int, BOOL))
			GetProcAddress(hLib,
				       "SHGetSpecialFolderPathA");
	}

	if (!g_PyArg_ParseTuple(args, "s", &name))
		return NULL;
    
	if (!My_SHGetSpecialFolderPath) {
		g_PyErr_Format(g_PyExc_OSError, "function not available");
		return NULL;
	}

	for (i = 0; i < DIM(csidl_names); ++i) {
		if (0 == strcmpi(csidl_names[i].name, name)) {
			int nFolder;
			nFolder = csidl_names[i].nFolder;
			if (My_SHGetSpecialFolderPath(NULL, lpszPath,
						      nFolder, 0))
				return g_Py_BuildValue("s", lpszPath);
			else {
				g_PyErr_Format(g_PyExc_OSError,
					       "no such folder (%s)", name);
				return NULL;
			}
		
		}
	};
	g_PyErr_Format(g_PyExc_ValueError, "unknown CSIDL (%s)", name);
	return NULL;
}

static PyObject *CreateShortcut(PyObject *self, PyObject *args)
{
	char *path; /* path and filename */
	char *description;
	char *filename;

	char *arguments = NULL;
	char *iconpath = NULL;
	int iconindex = 0;
	char *workdir = NULL;

	WCHAR wszFilename[MAX_PATH];

	IShellLink *ps1 = NULL;
	IPersistFile *pPf = NULL;

	HRESULT hr;

	hr = CoInitialize(NULL);
	if (FAILED(hr)) {
		g_PyErr_Format(g_PyExc_OSError,
			       "CoInitialize failed, error 0x%x", hr);
		goto error;
	}

	if (!g_PyArg_ParseTuple(args, "sss|sssi",
				&path, &description, &filename,
				&arguments, &workdir, &iconpath, &iconindex))
		return NULL;

	hr = CoCreateInstance(&CLSID_ShellLink,
			      NULL,
			      CLSCTX_INPROC_SERVER,
			      &IID_IShellLink,
			      &ps1);
	if (FAILED(hr)) {
		g_PyErr_Format(g_PyExc_OSError,
			       "CoCreateInstance failed, error 0x%x", hr);
		goto error;
	}

	hr = ps1->lpVtbl->QueryInterface(ps1, &IID_IPersistFile,
					 (void **)&pPf);
	if (FAILED(hr)) {
		g_PyErr_Format(g_PyExc_OSError,
			       "QueryInterface(IPersistFile) error 0x%x", hr);
		goto error;
	}


	hr = ps1->lpVtbl->SetPath(ps1, path);
	if (FAILED(hr)) {
		g_PyErr_Format(g_PyExc_OSError,
			       "SetPath() failed, error 0x%x", hr);
		goto error;
	}

	hr = ps1->lpVtbl->SetDescription(ps1, description);
	if (FAILED(hr)) {
		g_PyErr_Format(g_PyExc_OSError,
			       "SetDescription() failed, error 0x%x", hr);
		goto error;
	}

	if (arguments) {
		hr = ps1->lpVtbl->SetArguments(ps1, arguments);
		if (FAILED(hr)) {
			g_PyErr_Format(g_PyExc_OSError,
				       "SetArguments() error 0x%x", hr);
			goto error;
		}
	}

	if (iconpath) {
		hr = ps1->lpVtbl->SetIconLocation(ps1, iconpath, iconindex);
		if (FAILED(hr)) {
			g_PyErr_Format(g_PyExc_OSError,
				       "SetIconLocation() error 0x%x", hr);
			goto error;
		}
	}

	if (workdir) {
		hr = ps1->lpVtbl->SetWorkingDirectory(ps1, workdir);
		if (FAILED(hr)) {
			g_PyErr_Format(g_PyExc_OSError,
				       "SetWorkingDirectory() error 0x%x", hr);
			goto error;
		}
	}

	MultiByteToWideChar(CP_ACP, 0,
			    filename, -1,
			    wszFilename, MAX_PATH);
			
	hr = pPf->lpVtbl->Save(pPf, wszFilename, TRUE);
	if (FAILED(hr)) {
		g_PyErr_Format(g_PyExc_OSError,
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			       "Failed to create shortcut '%s' - error 0x%x", filename, hr);
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		goto error;
	}
    
	pPf->lpVtbl->Release(pPf);
	ps1->lpVtbl->Release(ps1);
	CoUninitialize();
	return g_Py_BuildValue("");
    
  error:
	if (pPf)
		pPf->lpVtbl->Release(pPf);

	if (ps1)
		ps1->lpVtbl->Release(ps1);

	CoUninitialize();

	return NULL;
}

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static PyObject *PyMessageBox(PyObject *self, PyObject *args)
{
	int rc;
	char *text, *caption;
	int flags;
	if (!g_PyArg_ParseTuple(args, "ssi", &text, &caption, &flags))
		return NULL;
	rc = MessageBox(GetFocus(), text, caption, flags);
	return g_Py_BuildValue("i", rc);
}

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static PyObject *GetRootHKey(PyObject *self)
{
	return g_Py_BuildValue("l", hkey_root);
}

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#define METH_VARARGS 0x0001
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#define METH_NOARGS   0x0004
typedef PyObject *(*PyCFunction)(PyObject *, PyObject *);
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PyMethodDef meth[] = {
	{"create_shortcut", CreateShortcut, METH_VARARGS, NULL},
	{"get_special_folder_path", GetSpecialFolderPath, METH_VARARGS, NULL},
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	{"get_root_hkey", (PyCFunction)GetRootHKey, METH_NOARGS, NULL},
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	{"file_created", FileCreated, METH_VARARGS, NULL},
	{"directory_created", DirectoryCreated, METH_VARARGS, NULL},
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	{"message_box", PyMessageBox, METH_VARARGS, NULL},
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};

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static HINSTANCE LoadPythonDll(char *fname)
{
	char fullpath[_MAX_PATH];
	LONG size = sizeof(fullpath);
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	char subkey_name[80];
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	char buffer[260 + 12];
	HINSTANCE h;

	/* make sure PYTHONHOME is set, to that sys.path is initialized correctly */
	wsprintf(buffer, "PYTHONHOME=%s", python_dir);
	_putenv(buffer);
	h = LoadLibrary(fname);
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	if (h)
		return h;
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	wsprintf(subkey_name,
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		 "SOFTWARE\\Python\\PythonCore\\%d.%d\\InstallPath",
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		 py_major, py_minor);
	if (ERROR_SUCCESS != RegQueryValue(HKEY_CURRENT_USER, subkey_name,
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					   fullpath, &size))
		return NULL;
	strcat(fullpath, "\\");
	strcat(fullpath, fname);
	return LoadLibrary(fullpath);
}

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static int prepare_script_environment(HINSTANCE hPython)
{
	PyObject *mod;
	DECLPROC(hPython, PyObject *, PyImport_ImportModule, (char *));
	DECLPROC(hPython, int, PyObject_SetAttrString, (PyObject *, char *, PyObject *));
	DECLPROC(hPython, PyObject *, PyObject_GetAttrString, (PyObject *, char *));
	DECLPROC(hPython, PyObject *, PyCFunction_New, (PyMethodDef *, PyObject *));
	DECLPROC(hPython, PyObject *, Py_BuildValue, (char *, ...));
	DECLPROC(hPython, int, PyArg_ParseTuple, (PyObject *, char *, ...));
	DECLPROC(hPython, PyObject *, PyErr_Format, (PyObject *, char *));
	if (!PyImport_ImportModule || !PyObject_GetAttrString || 
	    !PyObject_SetAttrString || !PyCFunction_New)
		return 1;
	if (!Py_BuildValue || !PyArg_ParseTuple || !PyErr_Format)
		return 1;

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	mod = PyImport_ImportModule("builtins");
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	if (mod) {
		int i;
		g_PyExc_ValueError = PyObject_GetAttrString(mod, "ValueError");
		g_PyExc_OSError = PyObject_GetAttrString(mod, "OSError");
		for (i = 0; i < DIM(meth); ++i) {
			PyObject_SetAttrString(mod, meth[i].ml_name,
					       PyCFunction_New(&meth[i], NULL));
		}
	}
	g_Py_BuildValue = Py_BuildValue;
	g_PyArg_ParseTuple = PyArg_ParseTuple;
	g_PyErr_Format = PyErr_Format;

	return 0;
}

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/*
 * This function returns one of the following error codes:
 * 1 if the Python-dll does not export the functions we need
 * 2 if no install-script is specified in pathname
 * 3 if the install-script file could not be opened
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 * the return value of PyRun_SimpleString() otherwise,
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 * which is 0 if everything is ok, -1 if an exception had occurred
 * in the install-script.
 */

static int
run_installscript(HINSTANCE hPython, char *pathname, int argc, char **argv)
{
	DECLPROC(hPython, void, Py_Initialize, (void));
	DECLPROC(hPython, int, PySys_SetArgv, (int, char **));
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	DECLPROC(hPython, int, PyRun_SimpleString, (char *));
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	DECLPROC(hPython, void, Py_Finalize, (void));
	DECLPROC(hPython, PyObject *, Py_BuildValue, (char *, ...));
	DECLPROC(hPython, PyObject *, PyCFunction_New,
		 (PyMethodDef *, PyObject *));
	DECLPROC(hPython, int, PyArg_ParseTuple, (PyObject *, char *, ...));
	DECLPROC(hPython, PyObject *, PyErr_Format, (PyObject *, char *));

	int result = 0;
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	int fh;
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	if (!Py_Initialize || !PySys_SetArgv
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	    || !PyRun_SimpleString || !Py_Finalize)
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		return 1;
	
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	if (!Py_BuildValue || !PyArg_ParseTuple || !PyErr_Format)
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		return 1;

	if (!PyCFunction_New || !PyArg_ParseTuple || !PyErr_Format)
		return 1;

	if (pathname == NULL || pathname[0] == '\0')
		return 2;

713 714
	fh = open(pathname, _O_RDONLY);
	if (-1 == fh) {
715 716 717 718 719 720 721 722 723
		fprintf(stderr, "Could not open postinstall-script %s\n",
			pathname);
		return 3;
	}

	SetDlgItemText(hDialog, IDC_INFO, "Running Script...");
		
	Py_Initialize();

724
	prepare_script_environment(hPython);
725
	PySys_SetArgv(argc, argv);
726 727 728 729 730 731 732 733 734 735 736 737 738
	result = 3;
	{
		struct _stat statbuf;
		if(0 == _fstat(fh, &statbuf)) {
			char *script = alloca(statbuf.st_size + 5);
			int n = read(fh, script, statbuf.st_size);
			if (n > 0) {
				script[n] = '\n';
				script[n+1] = 0;
				result = PyRun_SimpleString(script);
			}
		}
	}
739 740
	Py_Finalize();

741
	close(fh);
742 743 744 745

	return result;
}

746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773
static int do_run_simple_script(HINSTANCE hPython, char *script)
{
	int rc;
	DECLPROC(hPython, void, Py_Initialize, (void));
	DECLPROC(hPython, void, Py_SetProgramName, (char *));
	DECLPROC(hPython, void, Py_Finalize, (void));
	DECLPROC(hPython, int, PyRun_SimpleString, (char *));
	DECLPROC(hPython, void, PyErr_Print, (void));

	if (!Py_Initialize || !Py_SetProgramName || !Py_Finalize || 
	    !PyRun_SimpleString || !PyErr_Print)
		return -1;

	Py_SetProgramName(modulename);
	Py_Initialize();
	prepare_script_environment(hPython);
	rc = PyRun_SimpleString(script);
	if (rc)
		PyErr_Print();
	Py_Finalize();
	return rc;
}

static int run_simple_script(char *script)
{
	int rc;
	char *tempname;
	HINSTANCE hPython;
774
	tempname = tempnam(NULL, NULL);
775 776 777
	freopen(tempname, "a", stderr);
	freopen(tempname, "a", stdout);

778
	hPython = LoadPythonDll(pythondll);
779 780 781 782 783 784 785
	if (!hPython) {
		set_failure_reason("Can't load Python for pre-install script");
		return -1;
	}
	rc = do_run_simple_script(hPython, script);
	FreeLibrary(hPython);
	fflush(stderr);
786
	fclose(stderr);
787
	fflush(stdout);
788
	fclose(stdout);
789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818
	/* We only care about the output when we fail.  If the script works
	   OK, then we discard it
	*/
	if (rc) {
		int err_buf_size;
		char *err_buf;
		const char *prefix = "Running the pre-installation script failed\r\n";
		int prefix_len = strlen(prefix);
		FILE *fp = fopen(tempname, "rb");
		fseek(fp, 0, SEEK_END);
		err_buf_size = ftell(fp);
		fseek(fp, 0, SEEK_SET);
		err_buf = malloc(prefix_len + err_buf_size + 1);
		if (err_buf) {
			int n;
			strcpy(err_buf, prefix);
			n = fread(err_buf+prefix_len, 1, err_buf_size, fp);
			err_buf[prefix_len+n] = '\0';
			fclose(fp);
			set_failure_reason(err_buf);
			free(err_buf);
		} else {
			set_failure_reason("Out of memory!");
		}
	}
	remove(tempname);
	return rc;
}


819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957
static BOOL SystemError(int error, char *msg)
{
	char Buffer[1024];
	int n;

	if (error) {
		LPVOID lpMsgBuf;
		FormatMessage( 
			FORMAT_MESSAGE_ALLOCATE_BUFFER | 
			FORMAT_MESSAGE_FROM_SYSTEM,
			NULL,
			error,
			MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
			(LPSTR)&lpMsgBuf,
			0,
			NULL 
			);
		strncpy(Buffer, lpMsgBuf, sizeof(Buffer));
		LocalFree(lpMsgBuf);
	} else
		Buffer[0] = '\0';
	n = lstrlen(Buffer);
	_snprintf(Buffer+n, sizeof(Buffer)-n, msg);
	MessageBox(hwndMain, Buffer, "Runtime Error", MB_OK | MB_ICONSTOP);
	return FALSE;
}

static BOOL notify (int code, char *fmt, ...)
{
	char Buffer[1024];
	va_list marker;
	BOOL result = TRUE;
	int a, b;
	char *cp;

	va_start(marker, fmt);
	_vsnprintf(Buffer, sizeof(Buffer), fmt, marker);

	switch (code) {
/* Questions */
	case CAN_OVERWRITE:
		break;

/* Information notification */
	case DIR_CREATED:
		if (logfile)
			fprintf(logfile, "100 Made Dir: %s\n", fmt);
		break;

	case FILE_CREATED:
		if (logfile)
			fprintf(logfile, "200 File Copy: %s\n", fmt);
		goto add_to_filelist_label;
		break;

	case FILE_OVERWRITTEN:
		if (logfile)
			fprintf(logfile, "200 File Overwrite: %s\n", fmt);
	  add_to_filelist_label:
		if ((cp = strrchr(fmt, '.')) && (0 == strcmp (cp, ".py")))
			add_to_filelist(fmt);
		break;

/* Error Messages */
	case ZLIB_ERROR:
		MessageBox(GetFocus(), Buffer, "Error",
			    MB_OK | MB_ICONWARNING);
		break;

	case SYSTEM_ERROR:
		SystemError(GetLastError(), Buffer);
		break;

	case NUM_FILES:
		a = va_arg(marker, int);
		b = va_arg(marker, int);
		SendMessage(hDialog, WM_NUMFILES, 0, MAKELPARAM(0, a));
		SendMessage(hDialog, WM_NEXTFILE, b,(LPARAM)fmt);
	}
	va_end(marker);
    
	return result;
}

static char *MapExistingFile(char *pathname, DWORD *psize)
{
	HANDLE hFile, hFileMapping;
	DWORD nSizeLow, nSizeHigh;
	char *data;

	hFile = CreateFile(pathname,
			    GENERIC_READ, FILE_SHARE_READ, NULL,
			    OPEN_EXISTING,
			    FILE_ATTRIBUTE_NORMAL, NULL);
	if (hFile == INVALID_HANDLE_VALUE)
		return NULL;
	nSizeLow = GetFileSize(hFile, &nSizeHigh);
	hFileMapping = CreateFileMapping(hFile,
					  NULL, PAGE_READONLY, 0, 0, NULL);
	CloseHandle(hFile);

	if (hFileMapping == INVALID_HANDLE_VALUE)
		return NULL;
    
	data = MapViewOfFile(hFileMapping,
			      FILE_MAP_READ, 0, 0, 0);

	CloseHandle(hFileMapping);
	*psize = nSizeLow;
	return data;
}


static void create_bitmap(HWND hwnd)
{
	BITMAPFILEHEADER *bfh;
	BITMAPINFO *bi;
	HDC hdc;

	if (!bitmap_bytes)
		return;

	if (hBitmap)
		return;

	hdc = GetDC(hwnd);

	bfh = (BITMAPFILEHEADER *)bitmap_bytes;
	bi = (BITMAPINFO *)(bitmap_bytes + sizeof(BITMAPFILEHEADER));

	hBitmap = CreateDIBitmap(hdc,
				 &bi->bmiHeader,
				 CBM_INIT,
				 bitmap_bytes + bfh->bfOffBits,
				 bi,
				 DIB_RGB_COLORS);
	ReleaseDC(hwnd, hdc);
}

958 959 960 961 962
/* Extract everything we need to begin the installation.  Currently this
   is the INI filename with install data, and the raw pre-install script
*/
static BOOL ExtractInstallData(char *data, DWORD size, int *pexe_size,
			       char **out_ini_file, char **out_preinstall_script)
963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978
{
	/* read the end of central directory record */
	struct eof_cdir *pe = (struct eof_cdir *)&data[size - sizeof
						       (struct eof_cdir)];
    
	int arc_start = size - sizeof (struct eof_cdir) - pe->nBytesCDir -
		pe->ofsCDir;

	int ofs = arc_start - sizeof (struct meta_data_hdr);

	/* read meta_data info */
	struct meta_data_hdr *pmd = (struct meta_data_hdr *)&data[ofs];
	char *src, *dst;
	char *ini_file;
	char tempdir[MAX_PATH];

979 980 981
	/* ensure that if we fail, we don't have garbage out pointers */
	*out_ini_file = *out_preinstall_script = NULL;

982
	if (pe->tag != 0x06054b50) {
983
		return FALSE;
984 985
	}

986 987 988 989 990
	if (pmd->tag != 0x1234567B) {
		return SystemError(0,
			   "Invalid cfgdata magic number (see bdist_wininst.py)");
	}
	if (ofs < 0) {
991
		return FALSE;
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	}

	if (pmd->bitmap_size) {
		/* Store pointer to bitmap bytes */
		bitmap_bytes = (char *)pmd - pmd->uncomp_size - pmd->bitmap_size;
	}

	*pexe_size = ofs - pmd->uncomp_size - pmd->bitmap_size;

	src = ((char *)pmd) - pmd->uncomp_size;
	ini_file = malloc(MAX_PATH); /* will be returned, so do not free it */
	if (!ini_file)
1004
		return FALSE;
1005 1006 1007 1008
	if (!GetTempPath(sizeof(tempdir), tempdir)
	    || !GetTempFileName(tempdir, "~du", 0, ini_file)) {
		SystemError(GetLastError(),
			     "Could not create temporary file");
1009
		return FALSE;
1010 1011 1012 1013 1014
	}
    
	dst = map_new_file(CREATE_ALWAYS, ini_file, NULL, pmd->uncomp_size,
			    0, 0, NULL/*notify*/);
	if (!dst)
1015 1016 1017 1018 1019 1020 1021
		return FALSE;
	/* Up to the first \0 is the INI file data. */
	strncpy(dst, src, pmd->uncomp_size);
	src += strlen(dst) + 1;
	/* Up to next \0 is the pre-install script */
	*out_preinstall_script = strdup(src);
	*out_ini_file = ini_file;
1022
	UnmapViewOfFile(dst);
1023
	return TRUE;
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}

static void PumpMessages(void)
{
	MSG msg;
	while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}
}

LRESULT CALLBACK
WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	HDC hdc;
	HFONT hFont;
	int h;
	PAINTSTRUCT ps;
	switch (msg) {
	case WM_PAINT:
		hdc = BeginPaint(hwnd, &ps);
		h = GetSystemMetrics(SM_CYSCREEN) / 10;
		hFont = CreateFont(h, 0, 0, 0, 700, TRUE,
				    0, 0, 0, 0, 0, 0, 0, "Times Roman");
		hFont = SelectObject(hdc, hFont);
		SetBkMode(hdc, TRANSPARENT);
		TextOut(hdc, 15, 15, title, strlen(title));
		SetTextColor(hdc, RGB(255, 255, 255));
		TextOut(hdc, 10, 10, title, strlen(title));
		DeleteObject(SelectObject(hdc, hFont));
		EndPaint(hwnd, &ps);
		return 0;
	}
	return DefWindowProc(hwnd, msg, wParam, lParam);
}

static HWND CreateBackground(char *title)
{
	WNDCLASS wc;
	HWND hwnd;
	char buffer[4096];

	wc.style = CS_VREDRAW | CS_HREDRAW;
	wc.lpfnWndProc = WindowProc;
	wc.cbWndExtra = 0;
	wc.cbClsExtra = 0;
	wc.hInstance = GetModuleHandle(NULL);
	wc.hIcon = NULL;
	wc.hCursor = LoadCursor(NULL, IDC_ARROW);
	wc.hbrBackground = CreateSolidBrush(RGB(0, 0, 128));
	wc.lpszMenuName = NULL;
	wc.lpszClassName = "SetupWindowClass";

	if (!RegisterClass(&wc))
		MessageBox(hwndMain,
			    "Could not register window class",
			    "Setup.exe", MB_OK);

	wsprintf(buffer, "Setup %s", title);
	hwnd = CreateWindow("SetupWindowClass",
			     buffer,
			     0,
			     0, 0,
			     GetSystemMetrics(SM_CXFULLSCREEN),
			     GetSystemMetrics(SM_CYFULLSCREEN),
			     NULL,
			     NULL,
			     GetModuleHandle(NULL),
			     NULL);
	ShowWindow(hwnd, SW_SHOWMAXIMIZED);
	UpdateWindow(hwnd);
	return hwnd;
}

/*
 * Center a window on the screen
 */
static void CenterWindow(HWND hwnd)
{
	RECT rc;
	int w, h;

	GetWindowRect(hwnd, &rc);
	w = GetSystemMetrics(SM_CXSCREEN);
	h = GetSystemMetrics(SM_CYSCREEN);
	MoveWindow(hwnd,
		   (w - (rc.right-rc.left))/2,
		   (h - (rc.bottom-rc.top))/2,
		    rc.right-rc.left, rc.bottom-rc.top, FALSE);
}

#include <prsht.h>

BOOL CALLBACK
IntroDlgProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	LPNMHDR lpnm;
	char Buffer[4096];

	switch (msg) {
	case WM_INITDIALOG:
		create_bitmap(hwnd);
		if(hBitmap)
			SendDlgItemMessage(hwnd, IDC_BITMAP, STM_SETIMAGE,
					   IMAGE_BITMAP, (LPARAM)hBitmap);
		CenterWindow(GetParent(hwnd));
		wsprintf(Buffer,
			  "This Wizard will install %s on your computer. "
			  "Click Next to continue "
			  "or Cancel to exit the Setup Wizard.",
			  meta_name);
		SetDlgItemText(hwnd, IDC_TITLE, Buffer);
		SetDlgItemText(hwnd, IDC_INTRO_TEXT, info);
		SetDlgItemText(hwnd, IDC_BUILD_INFO, build_info);
		return FALSE;

	case WM_NOTIFY:
		lpnm = (LPNMHDR) lParam;

		switch (lpnm->code) {
		case PSN_SETACTIVE:
			PropSheet_SetWizButtons(GetParent(hwnd), PSWIZB_NEXT);
			break;

		case PSN_WIZNEXT:
			break;

		case PSN_RESET:
			break;
		
		default:
			break;
		}
	}
	return FALSE;
}

#ifdef USE_OTHER_PYTHON_VERSIONS
/* These are really private variables used to communicate
 * between StatusRoutine and CheckPythonExe
 */
char bound_image_dll[_MAX_PATH];
int bound_image_major;
int bound_image_minor;

static BOOL __stdcall StatusRoutine(IMAGEHLP_STATUS_REASON reason,
				    PSTR ImageName,
				    PSTR DllName,
				    ULONG Va,
				    ULONG Parameter)
{
	char fname[_MAX_PATH];
	int int_version;

	switch(reason) {
	case BindOutOfMemory:
	case BindRvaToVaFailed:
	case BindNoRoomInImage:
	case BindImportProcedureFailed:
		break;

	case BindImportProcedure:
	case BindForwarder:
	case BindForwarderNOT:
	case BindImageModified:
	case BindExpandFileHeaders:
	case BindImageComplete:
	case BindSymbolsNotUpdated:
	case BindMismatchedSymbols:
	case BindImportModuleFailed:
		break;

	case BindImportModule:
		if (1 == sscanf(DllName, "python%d", &int_version)) {
			SearchPath(NULL, DllName, NULL, sizeof(fname),
				   fname, NULL);
			strcpy(bound_image_dll, fname);
			bound_image_major = int_version / 10;
			bound_image_minor = int_version % 10;
			OutputDebugString("BOUND ");
			OutputDebugString(fname);
			OutputDebugString("\n");
		}
		break;
	}
	return TRUE;
}

/*
 */
static LPSTR get_sys_prefix(LPSTR exe, LPSTR dll)
{
	void (__cdecl * Py_Initialize)(void);
	void (__cdecl * Py_SetProgramName)(char *);
	void (__cdecl * Py_Finalize)(void);
	void* (__cdecl * PySys_GetObject)(char *);
	void (__cdecl * PySys_SetArgv)(int, char **);
	char* (__cdecl * Py_GetPrefix)(void);
	char* (__cdecl * Py_GetPath)(void);
	HINSTANCE hPython;
	LPSTR prefix = NULL;
	int (__cdecl * PyRun_SimpleString)(char *);

	{
		char Buffer[256];
		wsprintf(Buffer, "PYTHONHOME=%s", exe);
		*strrchr(Buffer, '\\') = '\0';
//	MessageBox(GetFocus(), Buffer, "PYTHONHOME", MB_OK);
		_putenv(Buffer);
		_putenv("PYTHONPATH=");
	}

	hPython = LoadLibrary(dll);
	if (!hPython)
		return NULL;
	Py_Initialize = (void (*)(void))GetProcAddress
		(hPython,"Py_Initialize");

	PySys_SetArgv = (void (*)(int, char **))GetProcAddress
		(hPython,"PySys_SetArgv");

	PyRun_SimpleString = (int (*)(char *))GetProcAddress
		(hPython,"PyRun_SimpleString");

	Py_SetProgramName = (void (*)(char *))GetProcAddress
		(hPython,"Py_SetProgramName");

	PySys_GetObject = (void* (*)(char *))GetProcAddress
		(hPython,"PySys_GetObject");

	Py_GetPrefix = (char * (*)(void))GetProcAddress
		(hPython,"Py_GetPrefix");

	Py_GetPath = (char * (*)(void))GetProcAddress
		(hPython,"Py_GetPath");

	Py_Finalize = (void (*)(void))GetProcAddress(hPython,
						      "Py_Finalize");
	Py_SetProgramName(exe);
	Py_Initialize();
	PySys_SetArgv(1, &exe);

	MessageBox(GetFocus(), Py_GetPrefix(), "PREFIX", MB_OK);
	MessageBox(GetFocus(), Py_GetPath(), "PATH", MB_OK);

	Py_Finalize();
	FreeLibrary(hPython);

	return prefix;
}

static BOOL
CheckPythonExe(LPSTR pathname, LPSTR version, int *pmajor, int *pminor)
{
	bound_image_dll[0] = '\0';
	if (!BindImageEx(BIND_NO_BOUND_IMPORTS | BIND_NO_UPDATE | BIND_ALL_IMAGES,
			 pathname,
			 NULL,
			 NULL,
			 StatusRoutine))
		return SystemError(0, "Could not bind image");
	if (bound_image_dll[0] == '\0')
		return SystemError(0, "Does not seem to be a python executable");
	*pmajor = bound_image_major;
	*pminor = bound_image_minor;
	if (version && *version) {
		char core_version[12];
		wsprintf(core_version, "%d.%d", bound_image_major, bound_image_minor);
		if (strcmp(version, core_version))
			return SystemError(0, "Wrong Python version");
	}
	get_sys_prefix(pathname, bound_image_dll);
	return TRUE;
}

/*
 * Browse for other python versions. Insert it into the listbox specified
 * by hwnd. version, if not NULL or empty, is the version required.
 */
static BOOL GetOtherPythonVersion(HWND hwnd, LPSTR version)
{
	char vers_name[_MAX_PATH + 80];
	DWORD itemindex;
	OPENFILENAME of;
	char pathname[_MAX_PATH];
	DWORD result;

	strcpy(pathname, "python.exe");

	memset(&of, 0, sizeof(of));
	of.lStructSize = sizeof(OPENFILENAME);
	of.hwndOwner = GetParent(hwnd);
	of.hInstance = NULL;
	of.lpstrFilter = "python.exe\0python.exe\0";
	of.lpstrCustomFilter = NULL;
	of.nMaxCustFilter = 0;
	of.nFilterIndex = 1;
	of.lpstrFile = pathname;
	of.nMaxFile = sizeof(pathname);
	of.lpstrFileTitle = NULL;
	of.nMaxFileTitle = 0;
	of.lpstrInitialDir = NULL;
	of.lpstrTitle = "Python executable";
	of.Flags = OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST;
	of.lpstrDefExt = "exe";

	result = GetOpenFileName(&of);
	if (result) {
		int major, minor;
		if (!CheckPythonExe(pathname, version, &major, &minor)) {
			return FALSE;
		}
		*strrchr(pathname, '\\') = '\0';
		wsprintf(vers_name, "Python Version %d.%d in %s",
			  major, minor, pathname);
		itemindex = SendMessage(hwnd, LB_INSERTSTRING, -1,
					(LPARAM)(LPSTR)vers_name);
		SendMessage(hwnd, LB_SETCURSEL, itemindex, 0);
		SendMessage(hwnd, LB_SETITEMDATA, itemindex,
			    (LPARAM)(LPSTR)strdup(pathname));
		return TRUE;
	}
	return FALSE;
}
#endif /* USE_OTHER_PYTHON_VERSIONS */

1350 1351 1352 1353 1354
typedef struct _InstalledVersionInfo {
    char prefix[MAX_PATH+1]; // sys.prefix directory.
    HKEY hkey; // Is this Python in HKCU or HKLM?
} InstalledVersionInfo;

1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376

/*
 * Fill the listbox specified by hwnd with all python versions found
 * in the registry. version, if not NULL or empty, is the version
 * required.
 */
static BOOL GetPythonVersions(HWND hwnd, HKEY hkRoot, LPSTR version)
{
	DWORD index = 0;
	char core_version[80];
	HKEY hKey;
	BOOL result = TRUE;
	DWORD bufsize;

	if (ERROR_SUCCESS != RegOpenKeyEx(hkRoot,
					   "Software\\Python\\PythonCore",
					   0,	KEY_READ, &hKey))
		return FALSE;
	bufsize = sizeof(core_version);
	while (ERROR_SUCCESS == RegEnumKeyEx(hKey, index,
					      core_version, &bufsize, NULL,
					      NULL, NULL, NULL)) {
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		char subkey_name[80], vers_name[80];
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		int itemindex;
		DWORD value_size;
		HKEY hk;

		bufsize = sizeof(core_version);
		++index;
		if (version && *version && strcmp(version, core_version))
			continue;

		wsprintf(vers_name, "Python Version %s (found in registry)",
			  core_version);
		wsprintf(subkey_name,
			  "Software\\Python\\PythonCore\\%s\\InstallPath",
			  core_version);
		if (ERROR_SUCCESS == RegOpenKeyEx(hkRoot, subkey_name, 0, KEY_READ, &hk)) {
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			InstalledVersionInfo *ivi = 
			      (InstalledVersionInfo *)malloc(sizeof(InstalledVersionInfo));
			value_size = sizeof(ivi->prefix);
			if (ivi && 
			    ERROR_SUCCESS == RegQueryValueEx(hk, NULL, NULL, NULL,
			                                     ivi->prefix, &value_size)) {
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				itemindex = SendMessage(hwnd, LB_ADDSTRING, 0,
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				                        (LPARAM)(LPSTR)vers_name);
				ivi->hkey = hkRoot;
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				SendMessage(hwnd, LB_SETITEMDATA, itemindex,
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				            (LPARAM)(LPSTR)ivi);
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			}
			RegCloseKey(hk);
		}
	}
	RegCloseKey(hKey);
	return result;
}

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/* Determine if the current user can write to HKEY_LOCAL_MACHINE */
BOOL HasLocalMachinePrivs()
{
		HKEY hKey;
		DWORD result;
		static char KeyName[] = 
			"Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall";

		result = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
					  KeyName,
					  0,
					  KEY_CREATE_SUB_KEY,
					  &hKey);
		if (result==0)
			RegCloseKey(hKey);
		return result==0;
}

// Check the root registry key to use - either HKLM or HKCU.
// If Python is installed in HKCU, then our extension also must be installed
// in HKCU - as Python won't be available for other users, we shouldn't either
// (and will fail if we are!)
// If Python is installed in HKLM, then we will also prefer to use HKLM, but
// this may not be possible - so we silently fall back to HKCU.
//
// We assume hkey_root is already set to where Python itself is installed.
void CheckRootKey(HWND hwnd)
{
	if (hkey_root==HKEY_CURRENT_USER) {
		; // as above, always install ourself in HKCU too.
	} else if (hkey_root==HKEY_LOCAL_MACHINE) {
		// Python in HKLM, but we may or may not have permissions there.
		// Open the uninstall key with 'create' permissions - if this fails,
		// we don't have permission.
		if (!HasLocalMachinePrivs())
			hkey_root = HKEY_CURRENT_USER;
	} else {
		MessageBox(hwnd, "Don't know Python's installation type",
				   "Strange", MB_OK | MB_ICONSTOP);
		/* Default to wherever they can, but preferring HKLM */
		hkey_root = HasLocalMachinePrivs() ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
	}
}

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/* Return the installation scheme depending on Python version number */
SCHEME *GetScheme(int major, int minor)
{
	if (major > 2)
		return new_scheme;
	else if((major == 2) && (minor >= 2))
		return new_scheme;
	return old_scheme;
}

BOOL CALLBACK
SelectPythonDlgProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	LPNMHDR lpnm;

	switch (msg) {
	case WM_INITDIALOG:
		if (hBitmap)
			SendDlgItemMessage(hwnd, IDC_BITMAP, STM_SETIMAGE,
					   IMAGE_BITMAP, (LPARAM)hBitmap);
		GetPythonVersions(GetDlgItem(hwnd, IDC_VERSIONS_LIST),
				   HKEY_LOCAL_MACHINE, target_version);
		GetPythonVersions(GetDlgItem(hwnd, IDC_VERSIONS_LIST),
				   HKEY_CURRENT_USER, target_version);
		{	/* select the last entry which is the highest python
			   version found */
			int count;
			count = SendDlgItemMessage(hwnd, IDC_VERSIONS_LIST,
						    LB_GETCOUNT, 0, 0);
			if (count && count != LB_ERR)
				SendDlgItemMessage(hwnd, IDC_VERSIONS_LIST, LB_SETCURSEL,
						    count-1, 0);
	    
			/* If a specific Python version is required,
			 * display a prominent notice showing this fact.
			 */
			if (target_version && target_version[0]) {
				char buffer[4096];
				wsprintf(buffer,
					 "Python %s is required for this package. "
					 "Select installation to use:",
					 target_version);
				SetDlgItemText(hwnd, IDC_TITLE, buffer);
			}

			if (count == 0) {
				char Buffer[4096];
				char *msg;
				if (target_version && target_version[0]) {
					wsprintf(Buffer,
						 "Python version %s required, which was not found"
						 " in the registry.", target_version);
					msg = Buffer;
				} else
					msg = "No Python installation found in the registry.";
				MessageBox(hwnd, msg, "Cannot install",
					   MB_OK | MB_ICONSTOP);
			}
		}
		goto UpdateInstallDir;
		break;

	case WM_COMMAND:
		switch (LOWORD(wParam)) {
/*
  case IDC_OTHERPYTHON:
  if (GetOtherPythonVersion(GetDlgItem(hwnd, IDC_VERSIONS_LIST),
  target_version))
  goto UpdateInstallDir;
  break;
*/
		case IDC_VERSIONS_LIST:
			switch (HIWORD(wParam)) {
				int id;
			case LBN_SELCHANGE:
			  UpdateInstallDir:
				PropSheet_SetWizButtons(GetParent(hwnd),
							PSWIZB_BACK | PSWIZB_NEXT);
				id = SendDlgItemMessage(hwnd, IDC_VERSIONS_LIST,
							 LB_GETCURSEL, 0, 0);
				if (id == LB_ERR) {
					PropSheet_SetWizButtons(GetParent(hwnd),
								PSWIZB_BACK);
					SetDlgItemText(hwnd, IDC_PATH, "");
					SetDlgItemText(hwnd, IDC_INSTALL_PATH, "");
					strcpy(python_dir, "");
					strcpy(pythondll, "");
				} else {
					char *pbuf;
					int result;
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					InstalledVersionInfo *ivi;
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					PropSheet_SetWizButtons(GetParent(hwnd),
								PSWIZB_BACK | PSWIZB_NEXT);
					/* Get the python directory */
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                    ivi = (InstalledVersionInfo *)
                                SendDlgItemMessage(hwnd,
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									IDC_VERSIONS_LIST,
									LB_GETITEMDATA,
									id,
									0);
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                    hkey_root = ivi->hkey;
					strcpy(python_dir, ivi->prefix);
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					SetDlgItemText(hwnd, IDC_PATH, python_dir);
					/* retrieve the python version and pythondll to use */
					result = SendDlgItemMessage(hwnd, IDC_VERSIONS_LIST,
								     LB_GETTEXTLEN, (WPARAM)id, 0);
					pbuf = (char *)malloc(result + 1);
					if (pbuf) {
						/* guess the name of the python-dll */
						SendDlgItemMessage(hwnd, IDC_VERSIONS_LIST,
								    LB_GETTEXT, (WPARAM)id,
								    (LPARAM)pbuf);
						result = sscanf(pbuf, "Python Version %d.%d",
								 &py_major, &py_minor);
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						if (result == 2) {
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#ifdef _DEBUG
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							wsprintf(pythondll, "python%d%d_d.dll",
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								 py_major, py_minor);
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#else
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							wsprintf(pythondll, "python%d%d.dll",
								 py_major, py_minor);
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#endif
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						}
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						free(pbuf);
					} else
						strcpy(pythondll, "");
					/* retrieve the scheme for this version */
					{
						char install_path[_MAX_PATH];
						SCHEME *scheme = GetScheme(py_major, py_minor);
						strcpy(install_path, python_dir);
						if (install_path[strlen(install_path)-1] != '\\')
							strcat(install_path, "\\");
						strcat(install_path, scheme[0].prefix);
						SetDlgItemText(hwnd, IDC_INSTALL_PATH, install_path);
					}
				}
			}
			break;
		}
		return 0;

	case WM_NOTIFY:
		lpnm = (LPNMHDR) lParam;

		switch (lpnm->code) {
			int id;
		case PSN_SETACTIVE:
			id = SendDlgItemMessage(hwnd, IDC_VERSIONS_LIST,
						 LB_GETCURSEL, 0, 0);
			if (id == LB_ERR)
				PropSheet_SetWizButtons(GetParent(hwnd),
							PSWIZB_BACK);
			else
				PropSheet_SetWizButtons(GetParent(hwnd),
							PSWIZB_BACK | PSWIZB_NEXT);
			break;

		case PSN_WIZNEXT:
			break;

		case PSN_WIZFINISH:
			break;

		case PSN_RESET:
			break;
		
		default:
			break;
		}
	}
	return 0;
}

static BOOL OpenLogfile(char *dir)
{
	char buffer[_MAX_PATH+1];
	time_t ltime;
	struct tm *now;
	long result;
	HKEY hKey, hSubkey;
	char subkey_name[256];
	static char KeyName[] = 
		"Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall";
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	const char *root_name = (hkey_root==HKEY_LOCAL_MACHINE ?
	                        "HKEY_LOCAL_MACHINE" : "HKEY_CURRENT_USER");
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	DWORD disposition;

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	/* Use Create, as the Uninstall subkey may not exist under HKCU.
	   Use CreateKeyEx, so we can specify a SAM specifying write access
	*/
		result = RegCreateKeyEx(hkey_root,
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			      KeyName,
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			      0, /* reserved */
			      NULL, /* class */
			      0, /* options */
			      KEY_CREATE_SUB_KEY, /* sam */
			      NULL, /* security */
			      &hKey, /* result key */
			      NULL); /* disposition */
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	if (result != ERROR_SUCCESS) {
		if (result == ERROR_ACCESS_DENIED) {
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			/* This should no longer be able to happen - we have already
			   checked if they have permissions in HKLM, and all users
			   should have write access to HKCU.
			*/
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			MessageBox(GetFocus(),
				   "You do not seem to have sufficient access rights\n"
				   "on this machine to install this software",
				   NULL,
				   MB_OK | MB_ICONSTOP);
			return FALSE;
		} else {
			MessageBox(GetFocus(), KeyName, "Could not open key", MB_OK);
		}
	}

	sprintf(buffer, "%s\\%s-wininst.log", dir, meta_name);
	logfile = fopen(buffer, "a");
	time(&ltime);
	now = localtime(&ltime);
	strftime(buffer, sizeof(buffer),
		 "*** Installation started %Y/%m/%d %H:%M ***\n",
		 localtime(&ltime));
	fprintf(logfile, buffer);
	fprintf(logfile, "Source: %s\n", modulename);

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	/* Root key must be first entry processed by uninstaller. */
	fprintf(logfile, "999 Root Key: %s\n", root_name);

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	sprintf(subkey_name, "%s-py%d.%d", meta_name, py_major, py_minor);

	result = RegCreateKeyEx(hKey, subkey_name,
				0, NULL, 0,
				KEY_WRITE,
				NULL,
				&hSubkey,
				&disposition);

	if (result != ERROR_SUCCESS)
		MessageBox(GetFocus(), subkey_name, "Could not create key", MB_OK);

	RegCloseKey(hKey);

	if (disposition == REG_CREATED_NEW_KEY)
		fprintf(logfile, "020 Reg DB Key: [%s]%s\n", KeyName, subkey_name);

	sprintf(buffer, "Python %d.%d %s", py_major, py_minor, title);

	result = RegSetValueEx(hSubkey, "DisplayName",
			       0,
			       REG_SZ,
			       buffer,
			       strlen(buffer)+1);

	if (result != ERROR_SUCCESS)
		MessageBox(GetFocus(), buffer, "Could not set key value", MB_OK);

	fprintf(logfile, "040 Reg DB Value: [%s\\%s]%s=%s\n",
		KeyName, subkey_name, "DisplayName", buffer);

	{
		FILE *fp;
		sprintf(buffer, "%s\\Remove%s.exe", dir, meta_name);
		fp = fopen(buffer, "wb");
		fwrite(arc_data, exe_size, 1, fp);
		fclose(fp);

		sprintf(buffer, "\"%s\\Remove%s.exe\" -u \"%s\\%s-wininst.log\"",
			dir, meta_name, dir, meta_name);

		result = RegSetValueEx(hSubkey, "UninstallString",
				       0,
				       REG_SZ,
				       buffer,
				       strlen(buffer)+1);
	
		if (result != ERROR_SUCCESS)
			MessageBox(GetFocus(), buffer, "Could not set key value", MB_OK);

		fprintf(logfile, "040 Reg DB Value: [%s\\%s]%s=%s\n",
			KeyName, subkey_name, "UninstallString", buffer);
	}
	return TRUE;
}

static void CloseLogfile(void)
{
	char buffer[_MAX_PATH+1];
	time_t ltime;
	struct tm *now;

	time(&ltime);
	now = localtime(&ltime);
	strftime(buffer, sizeof(buffer),
		 "*** Installation finished %Y/%m/%d %H:%M ***\n",
		 localtime(&ltime));
	fprintf(logfile, buffer);
	if (logfile)
		fclose(logfile);
}

BOOL CALLBACK
InstallFilesDlgProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	LPNMHDR lpnm;
	char Buffer[4096];
	SCHEME *scheme;

	switch (msg) {
	case WM_INITDIALOG:
		if (hBitmap)
			SendDlgItemMessage(hwnd, IDC_BITMAP, STM_SETIMAGE,
					   IMAGE_BITMAP, (LPARAM)hBitmap);
		wsprintf(Buffer,
			  "Click Next to begin the installation of %s. "
			  "If you want to review or change any of your "
			  " installation settings, click Back. "
			  "Click Cancel to exit the wizard.",
			  meta_name);
		SetDlgItemText(hwnd, IDC_TITLE, Buffer);
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		SetDlgItemText(hwnd, IDC_INFO, "Ready to install");
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		break;

	case WM_NUMFILES:
		SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0, lParam);
		PumpMessages();
		return TRUE;

	case WM_NEXTFILE:
		SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, wParam,
				    0);
		SetDlgItemText(hwnd, IDC_INFO, (LPSTR)lParam);
		PumpMessages();
		return TRUE;

	case WM_NOTIFY:
		lpnm = (LPNMHDR) lParam;

		switch (lpnm->code) {
		case PSN_SETACTIVE:
			PropSheet_SetWizButtons(GetParent(hwnd),
						PSWIZB_BACK | PSWIZB_NEXT);
			break;

		case PSN_WIZFINISH:
			break;

		case PSN_WIZNEXT:
			/* Handle a Next button click here */
			hDialog = hwnd;
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			success = TRUE;
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			/* Disable the buttons while we work.  Sending CANCELTOCLOSE has
			  the effect of disabling the cancel button, which is a) as we
			  do everything synchronously we can't cancel, and b) the next
			  step is 'finished', when it is too late to cancel anyway.
			  The next step being 'Finished' means we also don't need to
			  restore the button state back */
			PropSheet_SetWizButtons(GetParent(hwnd), 0);
			SendMessage(GetParent(hwnd), PSM_CANCELTOCLOSE, 0, 0);
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			/* Make sure the installation directory name ends in a */
			/* backslash */
			if (python_dir[strlen(python_dir)-1] != '\\')
				strcat(python_dir, "\\");
			/* Strip the trailing backslash again */
			python_dir[strlen(python_dir)-1] = '\0';
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			CheckRootKey(hwnd);
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			if (!OpenLogfile(python_dir))
				break;

/*
 * The scheme we have to use depends on the Python version...
 if sys.version < "2.2":
 WINDOWS_SCHEME = {
 'purelib': '$base',
 'platlib': '$base',
 'headers': '$base/Include/$dist_name',
 'scripts': '$base/Scripts',
 'data'   : '$base',
 }
 else:
 WINDOWS_SCHEME = {
 'purelib': '$base/Lib/site-packages',
 'platlib': '$base/Lib/site-packages',
 'headers': '$base/Include/$dist_name',
 'scripts': '$base/Scripts',
 'data'   : '$base',
 }
*/
			scheme = GetScheme(py_major, py_minor);
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			/* Run the pre-install script. */
			if (pre_install_script && *pre_install_script) {
				SetDlgItemText (hwnd, IDC_TITLE,
						"Running pre-installation script");
				run_simple_script(pre_install_script);
			}
			if (!success) {
				break;
			}
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			/* Extract all files from the archive */
			SetDlgItemText(hwnd, IDC_TITLE, "Installing files...");
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			if (!unzip_archive (scheme,
					    python_dir, arc_data,
					    arc_size, notify))
				set_failure_reason("Failed to unzip installation files");
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			/* Compile the py-files */
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			if (success && pyc_compile) {
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				int errors;
				HINSTANCE hPython;
				SetDlgItemText(hwnd, IDC_TITLE,
						"Compiling files to .pyc...");

				SetDlgItemText(hDialog, IDC_INFO, "Loading python...");
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				hPython = LoadPythonDll(pythondll);
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				if (hPython) {
					errors = compile_filelist(hPython, FALSE);
					FreeLibrary(hPython);
				}
				/* Compilation errors are intentionally ignored:
				 * Python2.0 contains a bug which will result
				 * in sys.path containing garbage under certain
				 * circumstances, and an error message will only
				 * confuse the user.
				 */
			}
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			if (success && pyo_compile) {
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				int errors;
				HINSTANCE hPython;
				SetDlgItemText(hwnd, IDC_TITLE,
						"Compiling files to .pyo...");

				SetDlgItemText(hDialog, IDC_INFO, "Loading python...");
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				hPython = LoadPythonDll(pythondll);
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				if (hPython) {
					errors = compile_filelist(hPython, TRUE);
					FreeLibrary(hPython);
				}
				/* Errors ignored: see above */
			}


			break;

		case PSN_RESET:
			break;
		
		default:
			break;
		}
	}
	return 0;
}


BOOL CALLBACK
FinishedDlgProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	LPNMHDR lpnm;

	switch (msg) {
	case WM_INITDIALOG:
		if (hBitmap)
			SendDlgItemMessage(hwnd, IDC_BITMAP, STM_SETIMAGE,
					   IMAGE_BITMAP, (LPARAM)hBitmap);
		if (!success)
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			SetDlgItemText(hwnd, IDC_INFO, get_failure_reason());
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		/* async delay: will show the dialog box completely before
		   the install_script is started */
		PostMessage(hwnd, WM_USER, 0, 0L);
		return TRUE;

	case WM_USER:

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		if (success && install_script && install_script[0]) {
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			char fname[MAX_PATH];
			char *tempname;
			FILE *fp;
			char buffer[4096];
			int n;
			HCURSOR hCursor;
			HINSTANCE hPython;

			char *argv[3] = {NULL, "-install", NULL};

			SetDlgItemText(hwnd, IDC_TITLE,
					"Please wait while running postinstall script...");
			strcpy(fname, python_dir);
			strcat(fname, "\\Scripts\\");
			strcat(fname, install_script);

			if (logfile)
				fprintf(logfile, "300 Run Script: [%s]%s\n", pythondll, fname);

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			tempname = tempnam(NULL, NULL);
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			if (!freopen(tempname, "a", stderr))
				MessageBox(GetFocus(), "freopen stderr", NULL, MB_OK);
			if (!freopen(tempname, "a", stdout))
				MessageBox(GetFocus(), "freopen stdout", NULL, MB_OK);
/*
  if (0 != setvbuf(stdout, NULL, _IONBF, 0))
  MessageBox(GetFocus(), "setvbuf stdout", NULL, MB_OK);
*/
			hCursor = SetCursor(LoadCursor(NULL, IDC_WAIT));

			argv[0] = fname;

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			hPython = LoadPythonDll(pythondll);
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			if (hPython) {
				int result;
				result = run_installscript(hPython, fname, 2, argv);
				if (-1 == result) {
					fprintf(stderr, "*** run_installscript: internal error 0x%X ***\n", result);
				}
				FreeLibrary(hPython);
			} else {
				fprintf(stderr, "*** Could not load Python ***");
			}
			fflush(stderr);
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			fclose(stderr);
1980
			fflush(stdout);
1981
			fclose(stdout);
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			fp = fopen(tempname, "rb");
			n = fread(buffer, 1, sizeof(buffer), fp);
			fclose(fp);
			remove(tempname);
	    
			buffer[n] = '\0';
	    
			SetDlgItemText(hwnd, IDC_INFO, buffer);
			SetDlgItemText(hwnd, IDC_TITLE,
					"Postinstall script finished.\n"
					"Click the Finish button to exit the Setup wizard.");

			SetCursor(hCursor);
			CloseLogfile();
		}

		return TRUE;

	case WM_NOTIFY:
		lpnm = (LPNMHDR) lParam;

		switch (lpnm->code) {
		case PSN_SETACTIVE: /* Enable the Finish button */
			PropSheet_SetWizButtons(GetParent(hwnd), PSWIZB_FINISH);
			break;

		case PSN_WIZNEXT:
			break;

		case PSN_WIZFINISH:
			break;

		case PSN_RESET:
			break;
		
		default:
			break;
		}
	}
	return 0;
}

void RunWizard(HWND hwnd)
{
	PROPSHEETPAGE   psp =       {0};
	HPROPSHEETPAGE  ahpsp[4] =  {0};
	PROPSHEETHEADER psh =       {0};

	/* Display module information */
	psp.dwSize =        sizeof(psp);
	psp.dwFlags =       PSP_DEFAULT|PSP_HIDEHEADER;
	psp.hInstance =     GetModuleHandle (NULL);
	psp.lParam =        0;
	psp.pfnDlgProc =    IntroDlgProc;
	psp.pszTemplate =   MAKEINTRESOURCE(IDD_INTRO);

	ahpsp[0] =          CreatePropertySheetPage(&psp);

	/* Select python version to use */
	psp.dwFlags =       PSP_DEFAULT|PSP_HIDEHEADER;
	psp.pszTemplate =       MAKEINTRESOURCE(IDD_SELECTPYTHON);
	psp.pfnDlgProc =        SelectPythonDlgProc;

	ahpsp[1] =              CreatePropertySheetPage(&psp);

	/* Install the files */
	psp.dwFlags =	    PSP_DEFAULT|PSP_HIDEHEADER;
	psp.pszTemplate =       MAKEINTRESOURCE(IDD_INSTALLFILES);
	psp.pfnDlgProc =        InstallFilesDlgProc;

	ahpsp[2] =              CreatePropertySheetPage(&psp);

	/* Show success or failure */
	psp.dwFlags =           PSP_DEFAULT|PSP_HIDEHEADER;
	psp.pszTemplate =       MAKEINTRESOURCE(IDD_FINISHED);
	psp.pfnDlgProc =        FinishedDlgProc;

	ahpsp[3] =              CreatePropertySheetPage(&psp);

	/* Create the property sheet */
	psh.dwSize =            sizeof(psh);
	psh.hInstance =         GetModuleHandle(NULL);
	psh.hwndParent =        hwnd;
	psh.phpage =            ahpsp;
	psh.dwFlags =           PSH_WIZARD/*97*//*|PSH_WATERMARK|PSH_HEADER*/;
		psh.pszbmWatermark =    NULL;
		psh.pszbmHeader =       NULL;
		psh.nStartPage =        0;
		psh.nPages =            4;

		PropertySheet(&psh);
}

int DoInstall(void)
{
	char ini_buffer[4096];

	/* Read installation information */
	GetPrivateProfileString("Setup", "title", "", ini_buffer,
				 sizeof(ini_buffer), ini_file);
	unescape(title, ini_buffer, sizeof(title));

	GetPrivateProfileString("Setup", "info", "", ini_buffer,
				 sizeof(ini_buffer), ini_file);
	unescape(info, ini_buffer, sizeof(info));

	GetPrivateProfileString("Setup", "build_info", "", build_info,
				 sizeof(build_info), ini_file);

	pyc_compile = GetPrivateProfileInt("Setup", "target_compile", 1,
					    ini_file);
	pyo_compile = GetPrivateProfileInt("Setup", "target_optimize", 1,
					    ini_file);

	GetPrivateProfileString("Setup", "target_version", "",
				 target_version, sizeof(target_version),
				 ini_file);

	GetPrivateProfileString("metadata", "name", "",
				 meta_name, sizeof(meta_name),
				 ini_file);

	GetPrivateProfileString("Setup", "install_script", "",
				 install_script, sizeof(install_script),
				 ini_file);


	hwndMain = CreateBackground(title);

	RunWizard(hwndMain);

	/* Clean up */
	UnmapViewOfFile(arc_data);
	if (ini_file)
		DeleteFile(ini_file);

	if (hBitmap)
		DeleteObject(hBitmap);

	return 0;
}

/*********************** uninstall section ******************************/

static int compare(const void *p1, const void *p2)
{
	return strcmp(*(char **)p2, *(char **)p1);
}

/*
 * Commit suicide (remove the uninstaller itself).
 *
 * Create a batch file to first remove the uninstaller
 * (will succeed after it has finished), then the batch file itself.
 *
 * This technique has been demonstrated by Jeff Richter,
 * MSJ 1/1996
 */
void remove_exe(void)
{
	char exename[_MAX_PATH];
	char batname[_MAX_PATH];
	FILE *fp;
	STARTUPINFO si;
	PROCESS_INFORMATION pi;

	GetModuleFileName(NULL, exename, sizeof(exename));
	sprintf(batname, "%s.bat", exename);
	fp = fopen(batname, "w");
	fprintf(fp, ":Repeat\n");
	fprintf(fp, "del \"%s\"\n", exename);
	fprintf(fp, "if exist \"%s\" goto Repeat\n", exename);
	fprintf(fp, "del \"%s\"\n", batname);
	fclose(fp);
    
	ZeroMemory(&si, sizeof(si));
	si.cb = sizeof(si);
	si.dwFlags = STARTF_USESHOWWINDOW;
	si.wShowWindow = SW_HIDE;
	if (CreateProcess(NULL,
			  batname,
			  NULL,
			  NULL,
			  FALSE,
			  CREATE_SUSPENDED | IDLE_PRIORITY_CLASS,
			  NULL,
			  "\\",
			  &si,
			  &pi)) {
		SetThreadPriority(pi.hThread, THREAD_PRIORITY_IDLE);
		SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL);
		SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS);
		CloseHandle(pi.hProcess);
		ResumeThread(pi.hThread);
		CloseHandle(pi.hThread);
	}
}

void DeleteRegistryKey(char *string)
{
	char *keyname;
	char *subkeyname;
	char *delim;
	HKEY hKey;
	long result;
	char *line;

	line = strdup(string); /* so we can change it */

	keyname = strchr(line, '[');
	if (!keyname)
		return;
	++keyname;

	subkeyname = strchr(keyname, ']');
	if (!subkeyname)
		return;
	*subkeyname++='\0';
	delim = strchr(subkeyname, '\n');
	if (delim)
		*delim = '\0';

2205
	result = RegOpenKeyEx(hkey_root,
2206 2207 2208 2209 2210 2211 2212 2213 2214
			      keyname,
			      0,
			      KEY_WRITE,
			      &hKey);
    
	if (result != ERROR_SUCCESS)
		MessageBox(GetFocus(), string, "Could not open key", MB_OK);
	else {
		result = RegDeleteKey(hKey, subkeyname);
2215
		if (result != ERROR_SUCCESS && result != ERROR_FILE_NOT_FOUND)
2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247
			MessageBox(GetFocus(), string, "Could not delete key", MB_OK);
		RegCloseKey(hKey);
	}
	free(line);
}

void DeleteRegistryValue(char *string)
{
	char *keyname;
	char *valuename;
	char *value;
	HKEY hKey;
	long result;
	char *line;

	line = strdup(string); /* so we can change it */

/* Format is 'Reg DB Value: [key]name=value' */
	keyname = strchr(line, '[');
	if (!keyname)
		return;
	++keyname;
	valuename = strchr(keyname, ']');
	if (!valuename)
		return;
	*valuename++ = '\0';
	value = strchr(valuename, '=');
	if (!value)
		return;

	*value++ = '\0';

2248
	result = RegOpenKeyEx(hkey_root,
2249 2250 2251 2252 2253 2254 2255 2256
			      keyname,
			      0,
			      KEY_WRITE,
			      &hKey);
	if (result != ERROR_SUCCESS)
		MessageBox(GetFocus(), string, "Could not open key", MB_OK);
	else {
		result = RegDeleteValue(hKey, valuename);
2257
		if (result != ERROR_SUCCESS && result != ERROR_FILE_NOT_FOUND)
2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313
			MessageBox(GetFocus(), string, "Could not delete value", MB_OK);
		RegCloseKey(hKey);
	}
	free(line);
}

BOOL MyDeleteFile(char *line)
{
	char *pathname = strchr(line, ':');
	if (!pathname)
		return FALSE;
	++pathname;
	while (isspace(*pathname))
		++pathname;
	return DeleteFile(pathname);
}

BOOL MyRemoveDirectory(char *line)
{
	char *pathname = strchr(line, ':');
	if (!pathname)
		return FALSE;
	++pathname;
	while (isspace(*pathname))
		++pathname;
	return RemoveDirectory(pathname);
}

BOOL Run_RemoveScript(char *line)
{
	char *dllname;
	char *scriptname;
	static char lastscript[MAX_PATH];

/* Format is 'Run Scripts: [pythondll]scriptname' */
/* XXX Currently, pythondll carries no path!!! */
	dllname = strchr(line, '[');
	if (!dllname)
		return FALSE;
	++dllname;
	scriptname = strchr(dllname, ']');
	if (!scriptname)
		return FALSE;
	*scriptname++ = '\0';
	/* this function may be called more than one time with the same
	   script, only run it one time */
	if (strcmp(lastscript, scriptname)) {
		HINSTANCE hPython;
		char *argv[3] = {NULL, "-remove", NULL};
		char buffer[4096];
		FILE *fp;
		char *tempname;
		int n;

		argv[0] = scriptname;

2314
		tempname = tempnam(NULL, NULL);
2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328

		if (!freopen(tempname, "a", stderr))
			MessageBox(GetFocus(), "freopen stderr", NULL, MB_OK);
		if (!freopen(tempname, "a", stdout))
			MessageBox(GetFocus(), "freopen stdout", NULL, MB_OK);
	
		hPython = LoadLibrary(dllname);
		if (hPython) {
			if (0x80000000 == run_installscript(hPython, scriptname, 2, argv))
				fprintf(stderr, "*** Could not load Python ***");
			FreeLibrary(hPython);
		}
	
		fflush(stderr);
2329
		fclose(stderr);
2330
		fflush(stdout);
2331
		fclose(stdout);
2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416
	
		fp = fopen(tempname, "rb");
		n = fread(buffer, 1, sizeof(buffer), fp);
		fclose(fp);
		remove(tempname);
	
		buffer[n] = '\0';
		if (buffer[0])
			MessageBox(GetFocus(), buffer, "uninstall-script", MB_OK);

		strcpy(lastscript, scriptname);
	}
	return TRUE;
}

int DoUninstall(int argc, char **argv)
{
	FILE *logfile;
	char buffer[4096];
	int nLines = 0;
	int i;
	char *cp;
	int nFiles = 0;
	int nDirs = 0;
	int nErrors = 0;
	char **lines;
	int lines_buffer_size = 10;
    
	if (argc != 3) {
		MessageBox(NULL,
			   "Wrong number of args",
			   NULL,
			   MB_OK);
		return 1; /* Error */
	}
	if (strcmp(argv[1], "-u")) {
		MessageBox(NULL,
			   "2. arg is not -u",
			   NULL,
			   MB_OK);
		return 1; /* Error */
	}

	logfile = fopen(argv[2], "r");
	if (!logfile) {
		MessageBox(NULL,
			   "could not open logfile",
			   NULL,
			   MB_OK);
		return 1; /* Error */
	}
    
	lines = (char **)malloc(sizeof(char *) * lines_buffer_size);
	if (!lines)
		return SystemError(0, "Out of memory");

	/* Read the whole logfile, realloacting the buffer */
	while (fgets(buffer, sizeof(buffer), logfile)) {
		int len = strlen(buffer);
		/* remove trailing white space */
		while (isspace(buffer[len-1]))
			len -= 1;
		buffer[len] = '\0';
		lines[nLines++] = strdup(buffer);
		if (nLines >= lines_buffer_size) {
			lines_buffer_size += 10;
			lines = (char **)realloc(lines,
						 sizeof(char *) * lines_buffer_size);
			if (!lines)
				return SystemError(0, "Out of memory");
		}
	}
	fclose(logfile);

	/* Sort all the lines, so that highest 3-digit codes are first */
	qsort(&lines[0], nLines, sizeof(char *),
	      compare);

	if (IDYES != MessageBox(NULL,
				"Are you sure you want to remove\n"
				"this package from your computer?",
				"Please confirm",
				MB_YESNO | MB_ICONQUESTION))
		return 0;

2417
	hkey_root = HKEY_LOCAL_MACHINE;
2418 2419 2420 2421 2422 2423 2424
	cp = "";
	for (i = 0; i < nLines; ++i) {
		/* Ignore duplicate lines */
		if (strcmp(cp, lines[i])) {
			int ign;
			cp = lines[i];
			/* Parse the lines */
2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439
			if (2 == sscanf(cp, "%d Root Key: %s", &ign, &buffer)) {
				if (strcmp(buffer, "HKEY_CURRENT_USER")==0)
					hkey_root = HKEY_CURRENT_USER;
				else {
					// HKLM - check they have permissions.
					if (!HasLocalMachinePrivs()) {
						MessageBox(GetFocus(),
							   "You do not seem to have sufficient access rights\n"
							   "on this machine to uninstall this software",
							   NULL,
							   MB_OK | MB_ICONSTOP);
						return 1; /* Error */
					}
				}
			} else if (2 == sscanf(cp, "%d Made Dir: %s", &ign, &buffer)) {
2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523
				if (MyRemoveDirectory(cp))
					++nDirs;
				else {
					int code = GetLastError();
					if (code != 2 && code != 3) { /* file or path not found */
						++nErrors;
					}
				}
			} else if (2 == sscanf(cp, "%d File Copy: %s", &ign, &buffer)) {
				if (MyDeleteFile(cp))
					++nFiles;
				else {
					int code = GetLastError();
					if (code != 2 && code != 3) { /* file or path not found */
						++nErrors;
					}
				}
			} else if (2 == sscanf(cp, "%d File Overwrite: %s", &ign, &buffer)) {
				if (MyDeleteFile(cp))
					++nFiles;
				else {
					int code = GetLastError();
					if (code != 2 && code != 3) { /* file or path not found */
						++nErrors;
					}
				}
			} else if (2 == sscanf(cp, "%d Reg DB Key: %s", &ign, &buffer)) {
				DeleteRegistryKey(cp);
			} else if (2 == sscanf(cp, "%d Reg DB Value: %s", &ign, &buffer)) {
				DeleteRegistryValue(cp);
			} else if (2 == sscanf(cp, "%d Run Script: %s", &ign, &buffer)) {
				Run_RemoveScript(cp);
			}
		}
	}

	if (DeleteFile(argv[2])) {
		++nFiles;
	} else {
		++nErrors;
		SystemError(GetLastError(), argv[2]);
	}
	if (nErrors)
		wsprintf(buffer,
			 "%d files and %d directories removed\n"
			 "%d files or directories could not be removed",
			 nFiles, nDirs, nErrors);
	else
		wsprintf(buffer, "%d files and %d directories removed",
			 nFiles, nDirs);
	MessageBox(NULL, buffer, "Uninstall Finished!",
		   MB_OK | MB_ICONINFORMATION);
	remove_exe();
	return 0;
}

int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst,
		    LPSTR lpszCmdLine, INT nCmdShow)
{
	extern int __argc;
	extern char **__argv;
	char *basename;

	GetModuleFileName(NULL, modulename, sizeof(modulename));

	/* Map the executable file to memory */
	arc_data = MapExistingFile(modulename, &arc_size);
	if (!arc_data) {
		SystemError(GetLastError(), "Could not open archive");
		return 1;
	}

	/* OK. So this program can act as installer (self-extracting
	 * zip-file, or as uninstaller when started with '-u logfile'
	 * command line flags.
	 *
	 * The installer is usually started without command line flags,
	 * and the uninstaller is usually started with the '-u logfile'
	 * flag. What to do if some innocent user double-clicks the
	 * exe-file?
	 * The following implements a defensive strategy...
	 */

	/* Try to extract the configuration data into a temporary file */
2524 2525
	if (ExtractInstallData(arc_data, arc_size, &exe_size,
			       &ini_file, &pre_install_script))
2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543
		return DoInstall();

	if (!ini_file && __argc > 1) {
		return DoUninstall(__argc, __argv);
	}


	basename = strrchr(modulename, '\\');
	if (basename)
		++basename;

	/* Last guess about the purpose of this program */
	if (basename && (0 == strncmp(basename, "Remove", 6)))
		SystemError(0, "This program is normally started by windows");
	else
		SystemError(0, "Setup program invalid or damaged");
	return 1;
}