Fix #77372: Retain full path of files for directory uploads (#6917)

To fix https://bugs.php.net/bug.php?id=77372 and improve support of `<input type="file" name="files" multiple webkitdirectory>` I introduced another item to the `$_FILES` array called `full_path`, containing the full filename, as supplied by the user-agent.

Co-authored-by: Björn Tantau <bjoern@bjoern-tantau.de>

Author: bjoern-tantau

ext/session/tests/rfc1867.phpt

@@ -54,9 +54,11 @@ string(%d) "rfc1867"
 bool(true)
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -67,9 +69,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>

ext/session/tests/rfc1867_cleanup.phpt

@@ -54,9 +54,11 @@ string(%d) "rfc1867-cleanup"
 bool(true)
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -67,9 +69,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>

ext/session/tests/rfc1867_disabled.phpt

@@ -47,9 +47,11 @@ session_destroy();
 string(%d) "rfc1867-disabled"
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -60,9 +62,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>

ext/session/tests/rfc1867_disabled_2.phpt

@@ -47,9 +47,11 @@ session_destroy();
 string(%d) "rfc1867-disabled-2"
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -60,9 +62,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>

ext/session/tests/rfc1867_inter.phpt

@@ -57,9 +57,11 @@ session_destroy();
 string(%d) "rfc1867-inter"
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -70,9 +72,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>

ext/session/tests/rfc1867_no_name.phpt

@@ -47,9 +47,11 @@ session_destroy();
 string(%d) "rfc1867-no-name"
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -60,9 +62,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>

ext/session/tests/rfc1867_sid_cookie.phpt

@@ -53,9 +53,11 @@ string(%d) "rfc1867-sid-cookie"
 bool(true)
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -66,9 +68,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>

ext/session/tests/rfc1867_sid_get.phpt

@@ -51,9 +51,11 @@ string(%d) "rfc1867-sid-get"
 bool(true)
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -64,9 +66,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>

ext/session/tests/rfc1867_sid_get_2.phpt

@@ -53,9 +53,11 @@ string(%d) "rfc1867-sid-get-2"
 bool(true)
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -66,9 +68,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>

ext/session/tests/rfc1867_sid_invalid.phpt

@@ -65,9 +65,11 @@ string(%d) ""
 bool(true)
 array(2) {
   ["file1"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file1.txt"
+    ["full_path"]=>
+    string(9) "file1.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>
@@ -78,9 +80,11 @@ array(2) {
     int(1)
   }
   ["file2"]=>
-  array(5) {
+  array(6) {
     ["name"]=>
     string(9) "file2.txt"
+    ["full_path"]=>
+    string(9) "file2.txt"
     ["type"]=>
     string(0) ""
     ["tmp_name"]=>