- prevent unexpectable behaviors (for the user) with invalid path

This commit is contained in:
Pierre Joye 2010-02-07 20:15:58 +00:00
parent c58f63a38a
commit 658e86b847
5 changed files with 49 additions and 24 deletions

View File

@ -70,7 +70,7 @@ for( $i=0; $i<count($names_arr); $i++ ) {
if (realpath($file_dir) == $file_path || realpath($file_dir . "\\") == $file_path) {
echo "OK\n";
} else {
echo "Failed, not created in the correct directory" . realpath($file_dir) . ' vs ' . $file_path ."\n";
echo "Failed, not created in the correct directory " . realpath($file_dir) . ' vs ' . $file_path ."\n";
}
if (!is_writable($file_name)) {
@ -99,7 +99,8 @@ OK
-- Iteration 4 --
OK
-- Iteration 5 --
OK
Failed, not created in the correct directory %s vs %s
0
-- Iteration 6 --
OK
-- Iteration 7 --

View File

@ -113,6 +113,13 @@ static int php_do_open_temporary_file(const char *path, const char *pfx, char **
return -1;
}
#ifdef PHP_WIN32
if (!php_win32_check_trailing_space(pfx, (const int)strlen(pfx))) {
SetLastError(ERROR_INVALID_NAME);
return -1;
}
#endif
if (!VCWD_GETCWD(cwd, MAXPATHLEN)) {
cwd[0] = '\0';
}
@ -138,12 +145,14 @@ static int php_do_open_temporary_file(const char *path, const char *pfx, char **
}
#ifdef PHP_WIN32
if (GetTempFileName(new_state.cwd, pfx, 0, opened_path)) {
/* Some versions of windows set the temp file to be read-only,
* which means that opening it will fail... */
VCWD_CHMOD(opened_path, 0600);
fd = VCWD_OPEN_MODE(opened_path, open_flags, 0600);
}
#elif defined(HAVE_MKSTEMP)
fd = mkstemp(opened_path);
#else
@ -151,6 +160,7 @@ static int php_do_open_temporary_file(const char *path, const char *pfx, char **
fd = VCWD_OPEN(opened_path, open_flags);
}
#endif
if (fd == -1 || !opened_path_p) {
efree(opened_path);
} else {

View File

@ -38,11 +38,10 @@
#endif
#include "SAPI.h"
#ifdef PHP_WIN32
# include "ext/standard/php_string.h"
#endif
#include "php_streams_int.h"
#ifdef PHP_WIN32
# include "win32/winutil.h"
#endif
#define php_stream_fopen_from_fd_int(fd, mode, persistent_id) _php_stream_fopen_from_fd_int((fd), (mode), (persistent_id) STREAMS_CC TSRMLS_CC)
#define php_stream_fopen_from_fd_int_rel(fd, mode, persistent_id) _php_stream_fopen_from_fd_int((fd), (mode), (persistent_id) STREAMS_REL_CC TSRMLS_CC)
@ -1065,24 +1064,13 @@ static int php_plain_files_rename(php_stream_wrapper *wrapper, char *url_from, c
}
#ifdef PHP_WIN32
/* Prevent bad things to happen when invalid path are used with MoveFileEx */
{
int url_from_len = strlen(url_from);
int url_to_len = strlen(url_to);
char *trimed = php_trim(url_from, url_from_len, NULL, 0, NULL, 1 TSRMLS_CC);
int trimed_len = strlen(trimed);
if (trimed_len == 0 || trimed_len != url_from_len) {
php_win32_docref2_from_error(ERROR_INVALID_NAME, url_from, url_to TSRMLS_CC);
return 0;
}
trimed = php_trim(url_to, url_to_len, NULL, 0, NULL, 1 TSRMLS_CC);
trimed_len = strlen(trimed);
if (trimed_len == 0 || trimed_len != url_to_len) {
php_win32_docref2_from_error(ERROR_INVALID_NAME, url_from, url_to TSRMLS_CC);
return 0;
}
if (!php_win32_check_trailing_space(url_from, strlen(url_from))) {
php_win32_docref2_from_error(ERROR_INVALID_NAME, url_from, url_to TSRMLS_CC);
return 0;
}
if (!php_win32_check_trailing_space(url_to, strlen(url_to))) {
php_win32_docref2_from_error(ERROR_INVALID_NAME, url_from, url_to TSRMLS_CC);
return 0;
}
#endif
@ -1251,6 +1239,9 @@ static int php_plain_files_mkdir(php_stream_wrapper *wrapper, char *dir, int mod
static int php_plain_files_rmdir(php_stream_wrapper *wrapper, char *url, int options, php_stream_context *context TSRMLS_DC)
{
#if PHP_WIN32
int url_len = strlen(url);
#endif
if (PG(safe_mode) &&(!php_checkuid(url, NULL, CHECKUID_CHECK_FILE_AND_DIR))) {
return 0;
}
@ -1259,6 +1250,13 @@ static int php_plain_files_rmdir(php_stream_wrapper *wrapper, char *url, int opt
return 0;
}
#if PHP_WIN32
if (!php_win32_check_trailing_space(url, url_len)) {
php_error_docref1(NULL TSRMLS_CC, url, E_WARNING, "%s", strerror(ENOENT));
return 0;
}
#endif
if (VCWD_RMDIR(url) < 0) {
php_error_docref1(NULL TSRMLS_CC, url, E_WARNING, "%s", strerror(errno));
return 0;

View File

@ -31,3 +31,18 @@ PHPAPI char *php_win_err(int error)
return (buf ? (char *) buf : "");
}
int php_win32_check_trailing_space(const char * path, const int path_len) {
if (path_len < 1) {
return 1;
}
if (path) {
if (path[0] == ' ' || path[path_len - 1] == ' ') {
return 0;
} else {
return 1;
}
} else {
return 0;
}
}

View File

@ -19,3 +19,4 @@
PHPAPI char *php_win_err(int error);
#define php_win_err() php_win_err(GetLastError())
int php_win32_check_trailing_space(const char * path, const int path_len);