#include "php.h"
#include "fopen_wrappers.h"
#include "file.h"
#include "php_dir.h"
#include "php_string.h"
#include "php_scandir.h"
#include "basic_functions.h"
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <errno.h>
#ifdef PHP_WIN32
#include "win32/readdir.h"
#endif
#ifdef HAVE_GLOB
#ifndef PHP_WIN32
#include <glob.h>
#else
#include "win32/glob.h"
#endif
#endif
typedef struct {
int default_dir;
} php_dir_globals;
#ifdef ZTS
#define DIRG(v) TSRMG(dir_globals_id, php_dir_globals *, v)
int dir_globals_id;
#else
#define DIRG(v) (dir_globals.v)
php_dir_globals dir_globals;
#endif
#if 0
typedef struct {
int id;
DIR *dir;
} php_dir;
static int le_dirp;
#endif
static zend_class_entry *dir_class_entry_ptr;
#define FETCH_DIRP() \
if (ZEND_NUM_ARGS() == 0) { \
myself = getThis(); \
if (myself) { \
if (zend_hash_find(Z_OBJPROP_P(myself), "handle", sizeof("handle"), (void **)&tmp) == FAILURE) { \
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to find my handle property"); \
RETURN_FALSE; \
} \
ZEND_FETCH_RESOURCE(dirp, php_stream *, tmp, -1, "Directory", php_file_le_stream()); \
} else { \
ZEND_FETCH_RESOURCE(dirp, php_stream *, 0, DIRG(default_dir), "Directory", php_file_le_stream()); \
} \
} else if ((ZEND_NUM_ARGS() != 1) || zend_get_parameters_ex(1, &id) == FAILURE) { \
WRONG_PARAM_COUNT; \
} else { \
dirp = (php_stream *) zend_fetch_resource(id TSRMLS_CC, -1, "Directory", NULL, 1, php_file_le_stream()); \
if (!dirp) \
RETURN_FALSE; \
}
static zend_function_entry php_dir_class_functions[] = {
PHP_FALIAS(close, closedir, NULL)
PHP_FALIAS(rewind, rewinddir, NULL)
PHP_NAMED_FE(read, php_if_readdir, NULL)
{NULL, NULL, NULL}
};
static void php_set_default_dir(int id TSRMLS_DC)
{
if (DIRG(default_dir)!=-1) {
zend_list_delete(DIRG(default_dir));
}
if (id != -1) {
zend_list_addref(id);
}
DIRG(default_dir) = id;
}
PHP_RINIT_FUNCTION(dir)
{
DIRG(default_dir) = -1;
return SUCCESS;
}
PHP_MINIT_FUNCTION(dir)
{
static char dirsep_str[2], pathsep_str[2];
zend_class_entry dir_class_entry;
INIT_CLASS_ENTRY(dir_class_entry, "Directory", php_dir_class_functions);
dir_class_entry_ptr = zend_register_internal_class(&dir_class_entry TSRMLS_CC);
#ifdef ZTS
ts_allocate_id(&dir_globals_id, sizeof(php_dir_globals), NULL, NULL);
#endif
dirsep_str[0] = DEFAULT_SLASH;
dirsep_str[1] = '\0';
REGISTER_STRING_CONSTANT("DIRECTORY_SEPARATOR", dirsep_str, CONST_CS|CONST_PERSISTENT);
pathsep_str[0] = ZEND_PATHS_SEPARATOR;
pathsep_str[1] = '\0';
REGISTER_STRING_CONSTANT("PATH_SEPARATOR", pathsep_str, CONST_CS|CONST_PERSISTENT);
#ifdef HAVE_GLOB
#ifdef GLOB_BRACE
REGISTER_LONG_CONSTANT("GLOB_BRACE", GLOB_BRACE, CONST_CS | CONST_PERSISTENT);
#else
# define GLOB_BRACE 0
#endif
#ifdef GLOB_MARK
REGISTER_LONG_CONSTANT("GLOB_MARK", GLOB_MARK, CONST_CS | CONST_PERSISTENT);
#else
# define GLOB_MARK 0
#endif
#ifdef GLOB_NOSORT
REGISTER_LONG_CONSTANT("GLOB_NOSORT", GLOB_NOSORT, CONST_CS | CONST_PERSISTENT);
#else
# define GLOB_NOSORT 0
#endif
#ifdef GLOB_NOCHECK
REGISTER_LONG_CONSTANT("GLOB_NOCHECK", GLOB_NOCHECK, CONST_CS | CONST_PERSISTENT);
#else
# define GLOB_NOCHECK 0
#endif
#ifdef GLOB_NOESCAPE
REGISTER_LONG_CONSTANT("GLOB_NOESCAPE", GLOB_NOESCAPE, CONST_CS | CONST_PERSISTENT);
#else
# define GLOB_NOESCAPE 0
#endif
#ifdef GLOB_ERR
REGISTER_LONG_CONSTANT("GLOB_ERR", GLOB_ERR, CONST_CS | CONST_PERSISTENT);
#else
# define GLOB_ERR 0
#endif
#ifndef GLOB_ONLYDIR
# define GLOB_ONLYDIR (1<<30)
# define GLOB_EMULATE_ONLYDIR
# define GLOB_FLAGMASK (~GLOB_ONLYDIR)
#else
# define GLOB_FLAGMASK (~0)
#endif
#define GLOB_AVAILABLE_FLAGS (0 | GLOB_BRACE | GLOB_MARK | GLOB_NOSORT | GLOB_NOCHECK | GLOB_NOESCAPE | GLOB_ERR | GLOB_ONLYDIR)
REGISTER_LONG_CONSTANT("GLOB_ONLYDIR", GLOB_ONLYDIR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("GLOB_AVAILABLE_FLAGS", GLOB_AVAILABLE_FLAGS, CONST_CS | CONST_PERSISTENT);
#endif
return SUCCESS;
}
static void _php_do_opendir(INTERNAL_FUNCTION_PARAMETERS, int createobject)
{
char *dirname;
int dir_len;
zval *zcontext = NULL;
php_stream_context *context = NULL;
php_stream *dirp;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|r", &dirname, &dir_len, &zcontext) == FAILURE) {
RETURN_NULL();
}
if (zcontext) {
context = php_stream_context_from_zval(zcontext, 0);
}
dirp = php_stream_opendir(dirname, ENFORCE_SAFE_MODE|REPORT_ERRORS, context);
if (dirp == NULL) {
RETURN_FALSE;
}
dirp->flags |= PHP_STREAM_FLAG_NO_FCLOSE;
php_set_default_dir(dirp->rsrc_id TSRMLS_CC);
if (createobject) {
object_init_ex(return_value, dir_class_entry_ptr);
add_property_stringl(return_value, "path", dirname, dir_len, 1);
add_property_resource(return_value, "handle", dirp->rsrc_id);
php_stream_auto_cleanup(dirp);
} else {
php_stream_to_zval(dirp, return_value);
}
}
PHP_FUNCTION(opendir)
{
_php_do_opendir(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
PHP_FUNCTION(getdir)
{
_php_do_opendir(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
PHP_FUNCTION(closedir)
{
zval **id, **tmp, *myself;
php_stream *dirp;
int rsrc_id;
FETCH_DIRP();
if (!(dirp->flags & PHP_STREAM_FLAG_IS_DIR)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%d is not a valid Directory resource", dirp->rsrc_id);
RETURN_FALSE;
}
rsrc_id = dirp->rsrc_id;
zend_list_delete(dirp->rsrc_id);
if (rsrc_id == DIRG(default_dir)) {
php_set_default_dir(-1 TSRMLS_CC);
}
}
#if defined(HAVE_CHROOT) && !defined(ZTS) && ENABLE_CHROOT_FUNC
PHP_FUNCTION(chroot)
{
char *str;
int ret, str_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &str, &str_len) == FAILURE) {
RETURN_FALSE;
}
ret = chroot(str);
if (ret != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s (errno %d)", strerror(errno), errno);
RETURN_FALSE;
}
php_clear_stat_cache(TSRMLS_C);
ret = chdir("/");
if (ret != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s (errno %d)", strerror(errno), errno);
RETURN_FALSE;
}
RETURN_TRUE;
}
#endif
PHP_FUNCTION(chdir)
{
char *str;
int ret, str_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &str, &str_len) == FAILURE) {
RETURN_FALSE;
}
if ((PG(safe_mode) && !php_checkuid(str, NULL, CHECKUID_CHECK_FILE_AND_DIR)) || php_check_open_basedir(str TSRMLS_CC)) {
RETURN_FALSE;
}
ret = VCWD_CHDIR(str);
if (ret != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s (errno %d)", strerror(errno), errno);
RETURN_FALSE;
}
if (BG(CurrentStatFile) && !IS_ABSOLUTE_PATH(BG(CurrentStatFile), strlen(BG(CurrentStatFile)))) {
efree(BG(CurrentStatFile));
BG(CurrentStatFile) = NULL;
}
if (BG(CurrentLStatFile) && !IS_ABSOLUTE_PATH(BG(CurrentLStatFile), strlen(BG(CurrentLStatFile)))) {
efree(BG(CurrentLStatFile));
BG(CurrentLStatFile) = NULL;
}
RETURN_TRUE;
}
PHP_FUNCTION(getcwd)
{
char path[MAXPATHLEN];
char *ret=NULL;
if (ZEND_NUM_ARGS() != 0) {
WRONG_PARAM_COUNT;
}
#if HAVE_GETCWD
ret = VCWD_GETCWD(path, MAXPATHLEN);
#elif HAVE_GETWD
ret = VCWD_GETWD(path);
#endif
if (ret) {
RETURN_STRING(path, 1);
} else {
RETURN_FALSE;
}
}
PHP_FUNCTION(rewinddir)
{
zval **id, **tmp, *myself;
php_stream *dirp;
FETCH_DIRP();
if (!(dirp->flags & PHP_STREAM_FLAG_IS_DIR)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%d is not a valid Directory resource", dirp->rsrc_id);
RETURN_FALSE;
}
php_stream_rewinddir(dirp);
}
PHP_NAMED_FUNCTION(php_if_readdir)
{
zval **id, **tmp, *myself;
php_stream *dirp;
php_stream_dirent entry;
FETCH_DIRP();
if (!(dirp->flags & PHP_STREAM_FLAG_IS_DIR)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%d is not a valid Directory resource", dirp->rsrc_id);
RETURN_FALSE;
}
if (php_stream_readdir(dirp, &entry)) {
RETURN_STRINGL(entry.d_name, strlen(entry.d_name), 1);
}
RETURN_FALSE;
}
#ifdef HAVE_GLOB
PHP_FUNCTION(glob)
{
int cwd_skip = 0;
#ifdef ZTS
char cwd[MAXPATHLEN];
char work_pattern[MAXPATHLEN];
char *result;
#endif
char *pattern = NULL;
int pattern_len;
long flags = 0;
glob_t globbuf;
int n;
int ret;
zend_bool basedir_limit = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &pattern, &pattern_len, &flags) == FAILURE) {
return;
}
if (pattern_len >= MAXPATHLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Pattern exceeds the maximum allowed length of %d characters", MAXPATHLEN);
RETURN_FALSE;
}
if ((GLOB_AVAILABLE_FLAGS & flags) != flags) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "At least one of the passed flags is invalid or not supported on this platform");
RETURN_FALSE;
}
#ifdef ZTS
if (!IS_ABSOLUTE_PATH(pattern, pattern_len)) {
result = VCWD_GETCWD(cwd, MAXPATHLEN);
if (!result) {
cwd[0] = '\0';
}
#ifdef PHP_WIN32
if (IS_SLASH(*pattern)) {
cwd[2] = '\0';
}
#endif
cwd_skip = strlen(cwd)+1;
snprintf(work_pattern, MAXPATHLEN, "%s%c%s", cwd, DEFAULT_SLASH, pattern);
pattern = work_pattern;
}
#endif
memset(&globbuf, 0, sizeof(glob_t));
globbuf.gl_offs = 0;
if (0 != (ret = glob(pattern, flags & GLOB_FLAGMASK, NULL, &globbuf))) {
#ifdef GLOB_NOMATCH
if (GLOB_NOMATCH == ret) {
goto no_results;
}
#endif
RETURN_FALSE;
}
if (!globbuf.gl_pathc || !globbuf.gl_pathv) {
no_results:
if (PG(safe_mode) || (PG(open_basedir) && *PG(open_basedir))) {
struct stat s;
if (0 != VCWD_STAT(pattern, &s) || S_IFDIR != (s.st_mode & S_IFMT)) {
RETURN_FALSE;
}
}
array_init(return_value);
return;
}
array_init(return_value);
for (n = 0; n < globbuf.gl_pathc; n++) {
if (PG(safe_mode) || (PG(open_basedir) && *PG(open_basedir))) {
if (PG(safe_mode) && (!php_checkuid_ex(globbuf.gl_pathv[n], NULL, CHECKUID_CHECK_FILE_AND_DIR, CHECKUID_NO_ERRORS))) {
basedir_limit = 1;
continue;
} else if (php_check_open_basedir_ex(globbuf.gl_pathv[n], 0 TSRMLS_CC)) {
basedir_limit = 1;
continue;
}
}
if (flags & GLOB_ONLYDIR) {
struct stat s;
if (0 != VCWD_STAT(globbuf.gl_pathv[n], &s)) {
continue;
}
if (S_IFDIR != (s.st_mode & S_IFMT)) {
continue;
}
}
add_next_index_string(return_value, globbuf.gl_pathv[n]+cwd_skip, 1);
}
globfree(&globbuf);
if (basedir_limit && !zend_hash_num_elements(Z_ARRVAL_P(return_value))) {
zval_dtor(return_value);
RETURN_FALSE;
}
}
#endif
PHP_FUNCTION(scandir)
{
char *dirn;
int dirn_len;
long flags = 0;
char **namelist;
int n, i;
zval *zcontext = NULL;
php_stream_context *context = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|lr", &dirn, &dirn_len, &flags, &zcontext) == FAILURE) {
return;
}
if (dirn_len < 1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Directory name cannot be empty");
RETURN_FALSE;
}
if (zcontext) {
context = php_stream_context_from_zval(zcontext, 0);
}
if (!flags) {
n = php_stream_scandir(dirn, &namelist, context, (void *) php_stream_dirent_alphasort);
} else {
n = php_stream_scandir(dirn, &namelist, context, (void *) php_stream_dirent_alphasortr);
}
if (n < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "(errno %d): %s", errno, strerror(errno));
RETURN_FALSE;
}
array_init(return_value);
for (i = 0; i < n; i++) {
add_next_index_string(return_value, namelist[i], 0);
}
if (n) {
efree(namelist);
}
}