- Windows ACL cache support, update existing tests and add a new one

diff --git a/TSRM/tsrm_virtual_cwd.c b/TSRM/tsrm_virtual_cwd.c
index 206e31955da5440194bdb470da4e1133565aa116..41cd1ff7544db832c65d545a8e6194c028f597ac 100644 (file)
--- a/TSRM/tsrm_virtual_cwd.c
+++ b/TSRM/tsrm_virtual_cwd.c
@@ -471,6 +471,12 @@ static inline void realpath_cache_add(const char *path, int path_len, const char
                }
                bucket->realpath_len = realpath_len;
                bucket->is_dir = is_dir;
+#ifdef PHP_WIN32
+               bucket->is_rvalid   = 0;
+               bucket->is_readable = 0;
+               bucket->is_wvalid   = 0;
+               bucket->is_writable = 0;
+#endif
                bucket->expires = t + CWDG(realpath_cache_ttl);
                n = bucket->key % (sizeof(CWDG(realpath_cache)) / sizeof(CWDG(realpath_cache)[0]));
                bucket->next = CWDG(realpath_cache)[n];
@@ -503,6 +509,12 @@ static inline realpath_cache_bucket* realpath_cache_find(const char *path, int p
 }
 /* }}} */
 
+CWD_API realpath_cache_bucket* realpath_cache_lookup(const char *path, int path_len, time_t t TSRMLS_DC) /* {{{ */
+{
+    return realpath_cache_find(path, path_len, t TSRMLS_CC);
+}
+/* }}} */
+
 #undef LINK_MAX
 #define LINK_MAX 32
 

diff --git a/TSRM/tsrm_virtual_cwd.h b/TSRM/tsrm_virtual_cwd.h
index 28e93fc7cc97b9cc128e4cbb8a02cb1f0a08807f..8ddbee6f0f367624c643747cdb726417ed221d8e 100644 (file)
--- a/TSRM/tsrm_virtual_cwd.h
+++ b/TSRM/tsrm_virtual_cwd.h
@@ -210,6 +210,12 @@ typedef struct _realpath_cache_bucket {
        int                            realpath_len;
        int                            is_dir;
        time_t                         expires;
+#ifdef PHP_WIN32
+       unsigned char                  is_rvalid;
+       unsigned char                  is_readable;
+       unsigned char                  is_wvalid;
+       unsigned char                  is_writable;
+#endif
        struct _realpath_cache_bucket *next;    
 } realpath_cache_bucket;
 
@@ -231,6 +237,7 @@ extern virtual_cwd_globals cwd_globals;
 
 CWD_API void realpath_cache_clean(TSRMLS_D);
 CWD_API void realpath_cache_del(const char *path, int path_len TSRMLS_DC);
+CWD_API realpath_cache_bucket* realpath_cache_lookup(const char *path, int path_len, time_t t TSRMLS_DC);
 
 /* The actual macros to be used in programs using TSRM
  * If the program defines VIRTUAL_DIR it will use the

diff --git a/TSRM/tsrm_win32.c b/TSRM/tsrm_win32.c
index 69214d00d4112e715f95e7d4dfaaf2e1180171ae..187f5e652e470c3948912d29d6b5ac34cdc98b24 100644 (file)
--- a/TSRM/tsrm_win32.c
+++ b/TSRM/tsrm_win32.c
@@ -32,6 +32,7 @@
 #ifdef TSRM_WIN32
 
 #include "tsrm_win32.h"
+#include "tsrm_virtual_cwd.h"
 
 #ifdef ZTS
 static ts_rsrc_id win32_globals_id;
@@ -114,6 +115,11 @@ TSRM_API int tsrm_win32_access(const char *pathname, int mode)
        BYTE * psec_desc = NULL;
        BOOL fAccess = FALSE;
        HANDLE process_token = NULL;
+
+       realpath_cache_bucket * bucket = NULL;
+       char * real_path = NULL;
+       time_t t;
+
        TSRMLS_FETCH();
 
        if (mode == 1 /*X_OK*/) {
@@ -121,24 +127,62 @@ TSRM_API int tsrm_win32_access(const char *pathname, int mode)
                return GetBinaryType(pathname, &type) ? 0 : -1;
        } else {
                if(access(pathname, mode)) {
-                               return errno;
+                       return errno;
                }
 
+               if(!IS_ABSOLUTE_PATH(pathname, strlen(pathname)+1)) {
+                       real_path = (char *)malloc(MAX_PATH);
+                       if(tsrm_realpath(pathname, real_path TSRMLS_CC) == NULL) {
+                               goto Finished;
+                       }
+                       pathname = real_path;
+               }
+
+               if (CWDG(realpath_cache_size_limit)) {
+                       t = time(0);
+                       bucket = realpath_cache_lookup(pathname, strlen(pathname), t TSRMLS_CC);
+                       if(bucket == NULL && real_path == NULL) {
+                               /* We used the pathname directly. Call tsrm_realpath */
+                               /* so that entry is created in realpath cache */
+                               real_path = (char *)malloc(MAX_PATH);
+                               if(tsrm_realpath(pathname, real_path TSRMLS_CC) != NULL) {
+                                       pathname = real_path;
+                                       bucket = realpath_cache_lookup(pathname, strlen(pathname), t TSRMLS_CC);
+                               }
+                       }
+               }
+ 
+               /* Do a full access check because access() will only check read-only attribute */
+               if(mode == 0 || mode > 6) {
+                       if(bucket != NULL && bucket->is_rvalid) {
+                               fAccess = bucket->is_readable;
+                               goto Finished;
+                       }
+                       desired_access = FILE_GENERIC_READ;
+               } else if(mode <= 2) {
+                       if(bucket != NULL && bucket->is_wvalid) {
+                               fAccess = bucket->is_writable;
+                               goto Finished;
+                       }
+                       desired_access = FILE_GENERIC_WRITE;
+               } else if(mode <= 4) {
+                       if(bucket != NULL && bucket->is_rvalid) {
+                               fAccess = bucket->is_readable;
+                               goto Finished;
+                       }
+                       desired_access = FILE_GENERIC_READ;
+               } else { // if(mode <= 6)
+                       if(bucket != NULL && bucket->is_rvalid && bucket->is_wvalid) {
+                               fAccess = bucket->is_readable & bucket->is_writable;
+                               goto Finished;
+                       }
+                       desired_access = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
+               }
+
                if(TWG(impersonation_token) == NULL) {
                        goto Finished;
                }
 
-               /* Do a full access check because access() will only check read-only attribute */
-               if(mode == 0 || mode > 6) {
-                       desired_access = FILE_GENERIC_READ;
-               } else if(mode <= 2) {
-                               desired_access = FILE_GENERIC_WRITE;
-               } else if(mode <= 4) {
-                               desired_access = FILE_GENERIC_READ;
-               } else { // if(mode <= 6)
-                               desired_access = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
-               }
-
                /* Get size of security buffer. Call is expected to fail */
                if(GetFileSecurity(pathname, sec_info, NULL, 0, &sec_desc_length)) {
                        goto Finished;
@@ -154,12 +198,29 @@ TSRM_API int tsrm_win32_access(const char *pathname, int mode)
                                goto Finished;
                }
 
+               /* Keep the result in realpath_cache */
+               if(bucket != NULL) {
+                       if(desired_access == FILE_GENERIC_READ) {
+                               bucket->is_rvalid = 1;
+                               bucket->is_readable = fAccess;
+                       }
+                       else if(desired_access == FILE_GENERIC_WRITE) {
+                               bucket->is_wvalid = 1;
+                               bucket->is_writable = fAccess;
+                       }
+               }
+
 Finished:
                if(psec_desc != NULL) {
                        free(psec_desc);
                        psec_desc = NULL;
                }
 
+               if(real_path != NULL) {
+                       free(real_path);
+                       real_path = NULL;
+               }
+
                if(fAccess == FALSE) {
                        errno = EACCES;
                        return errno;

diff --git a/ext/standard/tests/file/windows_acls/bug44859.phpt b/ext/standard/tests/file/windows_acls/bug44859.phpt
index 0716ee5ac47c4f039353007efa94362300ee161d..bb22a5cd8e597a7a95706818caea4f5f2604404d 100644 (file)
--- a/ext/standard/tests/file/windows_acls/bug44859.phpt
+++ b/ext/standard/tests/file/windows_acls/bug44859.phpt
@@ -21,6 +21,7 @@ $i = 1;
 $path = __DIR__ . '/a.txt';
 foreach ($iteration as $perms => $exp) {
        create_file($path, $perms);
+       clearstatcache(true, $path);
        echo 'Iteration #' . $i++ . ': ';
        if (is_writable($path) == $exp) {
                echo "passed.\n";
@@ -36,6 +37,7 @@ $path = __DIR__ . '/adir';
 $i = 1;
 foreach ($iteration as $perms => $exp) {
        create_file($path, $perms);
+       clearstatcache(true, $path);
        echo 'Iteration #' . $i++ . ': ';
        if (is_writable($path) == $exp) {
                echo "passed.\n";

diff --git a/ext/standard/tests/file/windows_acls/bug44859_2.phpt b/ext/standard/tests/file/windows_acls/bug44859_2.phpt
index 8326eb473ee199ed89e335fec84a7e6b032ff041..3cc4ed1ba19da6224e07bb9f0106272489dbf559 100644 (file)
--- a/ext/standard/tests/file/windows_acls/bug44859_2.phpt
+++ b/ext/standard/tests/file/windows_acls/bug44859_2.phpt
@@ -21,11 +21,12 @@ $i = 1;
 $path = __DIR__ . '/a.txt';
 foreach ($iteration as $perms => $exp) {
        create_file($path, $perms);
+       clearstatcache(true, $path);
        echo 'Iteration #' . $i++ . ': ';
        if (is_readable($path) == $exp) {
                echo "passed.\n";
        } else {
-               var_dump(is_writable($path), $exp);
+               var_dump(is_readable($path), $exp);
                echo "failed.\n";
        }
        delete_file($path);
@@ -36,11 +37,12 @@ $path = __DIR__ . '/adir';
 $i = 1;
 foreach ($iteration as $perms => $exp) {
        create_file($path, $perms);
+       clearstatcache(true, $path);
        echo 'Iteration #' . $i++ . ': ';
        if (is_readable($path) == $exp) {
                echo "passed.\n";
        } else {
-               var_dump(is_writable($path), $exp);
+               var_dump(is_readable($path), $exp);
                echo "failed.\n";
        }
        delete_file($path);

diff --git a/ext/standard/tests/file/windows_acls/bug44859_4.phpt b/ext/standard/tests/file/windows_acls/bug44859_4.phpt
new file mode 100644 (file)
index 0000000..fff9066
--- /dev/null
+++ b/ext/standard/tests/file/windows_acls/bug44859_4.phpt
@@ -0,0 +1,64 @@
+--TEST--
+bug #44859 (incorrect result with NTFS ACL permissions, is_readable)
+--CREDIT--
+Venkat Raman Don
+--SKIPIF--
+<?php 
+include_once __DIR__ . '/common.inc';
+skipif();
+?>
+--FILE--
+<?php
+include_once __DIR__ . '/common.inc';
+
+$iteration = array(
+       PHPT_ACL_READ => true,
+       PHPT_ACL_NONE => false,
+       PHPT_ACL_WRITE => false,
+       PHPT_ACL_WRITE|PHPT_ACL_READ => true,
+);
+
+echo "Testing file with relative path:\n";
+$i = 1;
+$path = './a.txt';
+foreach ($iteration as $perms => $exp) {
+       create_file($path, $perms);
+       clearstatcache(true, $path);
+       echo 'Iteration #' . $i++ . ': ';
+       if (is_readable($path) == $exp) {
+               echo "passed.\n";
+       } else {
+               var_dump(is_readable($path), $exp);
+               echo "failed.\n";
+       }
+       delete_file($path);
+}
+
+echo "Testing directory with relative path:\n";
+$path = 'adir';
+$i = 1;
+foreach ($iteration as $perms => $exp) {
+       create_file($path, $perms);
+       clearstatcache(true, $path);
+       echo 'Iteration #' . $i++ . ': ';
+       if (is_readable($path) == $exp) {
+               echo "passed.\n";
+       } else {
+               var_dump(is_readable($path), $exp);
+               echo "failed.\n";
+       }
+       delete_file($path);
+}
+
+?>
+--EXPECT--
+Testing file with relative path:
+Iteration #1: passed.
+Iteration #2: passed.
+Iteration #3: passed.
+Iteration #4: passed.
+Testing directory with relative path:
+Iteration #1: passed.
+Iteration #2: passed.
+Iteration #3: passed.
+Iteration #4: passed.

diff --git a/ext/standard/tests/file/windows_acls/common.inc b/ext/standard/tests/file/windows_acls/common.inc
index 6bcaf2b3271dd9083930f6264bc46b8ad3b94aad..2a1adeb0a4ed04b68dbe934050f0111bf9e360ef 100644 (file)
--- a/ext/standard/tests/file/windows_acls/common.inc
+++ b/ext/standard/tests/file/windows_acls/common.inc
@@ -123,7 +123,6 @@ function create_file($name, $perms) {
        }
 
        touch($name);
-       $dst = realpath($name);
        icacls_set($name, PHPT_ACL_GRANT, $perms);
 }