- MFB:

- rename SAFEMODE_CHECKFILE to OPENBASEDIR_CHECKPATH (can be used without
   confusing in head without confusion)
 - Add safemode and open basedir checks in zip:// wrapper (revert Ilia's
   patch). Bug found by Stefan Esser in his MOPB-20-2007

ext/zip/php_zip.c

@@ -122,6 +122,11 @@ static int php_zip_extract_file(struct zip * za, char *dest, char *file, int fil
 		}
 
 		php_basename(file, file_len, NULL, 0, &file_basename, (unsigned int *)&file_basename_len TSRMLS_CC);
+		if (OPENBASEDIR_CHECKPATH(file_dirname_fullpath)) {
+			efree(file_dirname_fullpath);
+			efree(file_basename);
+			return 0;
+		}
 	}
 	/* let see if the path already exists */
 	if (php_stream_stat_path(file_dirname_fullpath, &ssb) < 0) {
@@ -149,6 +154,16 @@ static int php_zip_extract_file(struct zip * za, char *dest, char *file, int fil
 		return 0;
 	}
 
+	/* check again the full path, not sure if it
+	 * is required, does a file can have a different
+	 * safemode status as its parent folder?
+	 */
+	if (OPENBASEDIR_CHECKPATH(fullpath)) {
+		efree(file_dirname_fullpath);
+		efree(file_basename);
+		return 0;
+	}
+
 	zf = zip_fopen(za, file, 0);
 	if (zf == NULL) {
 		efree(fullpath);
@@ -609,6 +624,9 @@ static PHP_FUNCTION(zip_open)
 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z", &filename_zval) == FAILURE) {
 		return;
 	}
+	if (OPENBASEDIR_CHECKPATH(filename)) {
+		RETURN_FALSE;
+	}
 
 	if (FAILURE == php_stream_path_param_encode(filename_zval, &filename, &filename_len, REPORT_ERRORS, FG(default_context))) {
 		RETURN_FALSE;

ext/zip/php_zip.h

@@ -30,6 +30,16 @@ extern zend_module_entry zip_module_entry;
 
 #include "lib/zip.h"
 
+/* {{{ OPENBASEDIR_CHECKPATH(filename) */
+#if (PHP_MAJOR_VERSION < 6)
+#define OPENBASEDIR_CHECKPATH(filename) \
+	(PG(safe_mode) && (!php_checkuid(filename, NULL, CHECKUID_CHECK_FILE_AND_DIR))) || php_check_open_basedir(filename TSRMLS_CC)
+#else 
+#define OPENBASEDIR_CHECKPATH(filename) \
+	php_check_open_basedir(filename TSRMLS_CC)
+#endif
+/* }}} */
+
 typedef struct _ze_zip_rsrc {
 	struct zip *za;
 	int index_current;

ext/zip/zip_stream.c

@@ -12,6 +12,7 @@
 #include "ext/standard/file.h"
 #include "ext/standard/php_string.h"
 #include "fopen_wrappers.h"
+#include "php_zip.h"
 
 #include "ext/standard/url.h"
 
@@ -112,6 +113,10 @@ php_stream *php_stream_zip_open(char *filename, char *path, char *mode STREAMS_D
 	}
 
 	if (filename) {
+		if (OPENBASEDIR_CHECKPATH(filename)) {
+			return NULL;
+		}
+
 		/* duplicate to make the stream za independent (esp. for MSHUTDOWN) */
 		stream_za = zip_open(filename, ZIP_CREATE, &err);
 		if (!stream_za) {
@@ -189,6 +194,11 @@ php_stream *php_stream_zip_opener(php_stream_wrapper *wrapper,
 	php_basename(path, path_len - fragment_len, NULL, 0, &file_basename, &file_basename_len TSRMLS_CC);
 	fragment++;
 
+	if (OPENBASEDIR_CHECKPATH(file_dirname)) {
+		efree(file_basename);
+		return NULL;
+	}
+
 	za = zip_open(file_dirname, ZIP_CREATE, &err);
 	if (za) {
 		zf = zip_fopen(za, fragment, 0);