Fix bug #55701: GlobIterator throws LogicException

GlobIterator throws LogicException with message 'The parent constructor was
not called' on its first operation when the glob expression doesn't match
any file. It also throws on the first operation after the iteration
completes, when the glob expression matches some files.

# Resolved conflicts:
#	ext/spl/spl_directory.c

3 files changed, 341 insertions, 1 deletions

diff --git a/NEWS b/NEWS
index eda6726a8c..2e1bd3d517 100644
--- a/NEWS
+++ b/NEWS
@@ -30,6 +30,9 @@ PHP                                                                        NEWS
   . Fixed bug #72336 (openssl_pkey_new does not fail for invalid DSA params).
     (Jakub Zelenka)
 
+- SPL:
+  . Fixed bug #55701 (GlobIterator throws LogicException). (Valentin VĂLCIU)
+
 - SQLite3:
   . Fixed bug #70628 (Clearing bindings on an SQLite3 statement doesn't work).
     (cmb)
diff --git a/ext/spl/spl_directory.c b/ext/spl/spl_directory.c
index 73a2d70acc..8613c9302c 100644
--- a/ext/spl/spl_directory.c
+++ b/ext/spl/spl_directory.c
@@ -666,7 +666,7 @@ zend_function *spl_filesystem_object_get_method_check(zval **object_ptr, char *m
 {
 	spl_filesystem_object *fsobj = zend_object_store_get_object(*object_ptr TSRMLS_CC);
 
-	if (fsobj->u.dir.entry.d_name[0] == '\0' && fsobj->orig_path == NULL) {
+	if (fsobj->u.dir.dirp == NULL && fsobj->orig_path == NULL) {
 		method = "_bad_state_ex";
 		method_len = sizeof("_bad_state_ex") - 1;
 		key = NULL;
diff --git a/ext/spl/tests/bug55701.phpt b/ext/spl/tests/bug55701.phpt
new file mode 100644
index 0000000000..7d4e832d9b
--- /dev/null
+++ b/ext/spl/tests/bug55701.phpt
@@ -0,0 +1,337 @@
+--TEST--
+Bug #55701 (GlobIterator throws LogicException with message 'The parent constructor was not called')
+--FILE--
+<?php
+
+//
+// Some methods of GlobIterator do not throw a RuntimeException when the glob pattern doesn't match any file.
+// Most methods of GlobIterator throw a RuntimeException when the glob pattern does't match any file
+// because they get the properties of the current file
+function testBaseClass($f) {
+    // The tested iterator is in an invalid state; the behaviour of most of its methods is undefined
+    try {
+        $f();
+        echo "ran normally (expected)\n";
+    } catch (RuntimeException $e) {
+        // Throwing a RuntimeException is the correct behaviour for some methods
+        echo "ran normally (expected)\n";
+    } catch (LogicException $e) {
+        // Throwing a LogicException is not correct
+        echo "threw LogicException (unexpected)\n";
+    }
+}
+
+//
+// The derived classes must throw LogicException if the parent class constructor was not called
+function testChildClass($f) {
+    try {
+        $f();
+        echo "didn't throw (unexpected)\n";
+    } catch (LogicException $e) {
+        echo "threw LogicException (expected)\n";
+    } catch (Exception $e) {
+        echo "threw other exception (unexpected)\n";
+    }
+}
+
+
+
+//
+// It must not throw LogicException when the iterator is not valid
+echo "->count()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->count();
+} );
+
+echo "->rewind()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->rewind();
+} );
+
+echo "->getFlags()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getFlags();
+} );
+
+echo "->setFlags()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->setFlags(FilesystemIterator::KEY_AS_PATHNAME);
+} );
+
+echo "->valid()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->valid();
+} );
+
+
+
+//
+// When the iterator is not valid, the behaviour of the next methods is undefined
+// Some of them throw a RuntimeException while others just return an invalid value
+// However, they must not throw LogicException
+echo "->current()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->current();
+} );
+
+echo "->key()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->key();
+} );
+
+echo "->next()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->next();
+} );
+
+echo "->getATime()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getATime();
+} );
+
+echo "->getBasename()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getBasename();
+} );
+
+echo "->getCTime()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getCTime();
+} );
+
+echo "->getExtension()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getExtension();
+} );
+
+echo "->getFilename()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getFilename();
+} );
+
+echo "->getGroup()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getGroup();
+} );
+
+echo "->getInode()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getInode();
+} );
+
+echo "->getMTime()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getMTime();
+} );
+
+echo "->getOwner()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getOwner();
+} );
+
+echo "->getPath()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getPath();
+} );
+
+echo "->getPathname()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getPathname();
+} );
+
+echo "->getPerms()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getPerms();
+} );
+
+echo "->getSize()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getSize();
+} );
+
+echo "->getType()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->getType();
+} );
+
+echo "->isDir()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->isDir();
+} );
+
+echo "->isDot()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->isDot();
+} );
+
+echo "->isExecutable()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->isExecutable();
+} );
+
+echo "->isFile()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->isFile();
+} );
+
+echo "->isLink()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->isLink();
+} );
+
+echo "->isReadable()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->isReadable();
+} );
+
+echo "->isWritable()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->isWritable();
+} );
+
+echo "->seek()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->seek(0);
+} );
+
+echo "->__toString()... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.abcdefghij');
+    $o->__toString();
+} );
+
+
+//
+// Supplemental test: no method should throw LogicException if it is invoked
+// after a successful iteration over a non-empty list of files.
+echo "non-empty GlobIterator... ";
+testBaseClass( function() {
+    $o = new GlobIterator(__DIR__.'/*.phpt');
+    foreach ($o as $file) {
+        // nothing here, just consume all the items
+    }
+    // This must not throw an exception
+    $o->count();
+} );
+
+
+//
+// The correct existing behaviour must not change
+// The classes SplFileObject and SplTempFileObject are not affected by the bug
+echo "======================= test there are no regressions =======================\n";
+
+echo "SplFileObject existent file... ";
+testBaseClass( function() {
+    $o = new SplFileObject(__FILE__);
+    $o->fread(1);
+} );
+
+echo "SplFileObject non-existent file... ";
+testBaseClass( function() {
+    $o = new SplFileObject('/tmp/abcdefghij.abcdefghij');
+    $o->fread(1);
+} );
+
+
+
+//
+// Check that when derived classes do not call GlobIterator::__construct()
+// the LogicException is thrown (don't break the behaviour introduced to fix bug #54384)
+echo "extends GlobIterator... ";
+class GlobIteratorChild extends GlobIterator {
+    public function __construct() {}
+}
+testChildClass( function() {
+    $o = new GlobIteratorChild();
+    $o->count();
+} );
+
+echo "extends SplFileObject... ";
+class SplFileObjectChild extends SplFileObject {
+    public function __construct() {}
+}
+testChildClass( function() {
+    $o = new SplFileObjectChild();
+    $o->count();
+} );
+
+echo "extends SplTempFileObject... ";
+class SplTempFileObjectChild extends SplTempFileObject {
+    public function __construct() {}
+}
+testChildClass( function() {
+    $o = new SplTempFileObjectChild();
+    $o->count();
+} );
+
+
+
+--EXPECT--
+->count()... ran normally (expected)
+->rewind()... ran normally (expected)
+->getFlags()... ran normally (expected)
+->setFlags()... ran normally (expected)
+->valid()... ran normally (expected)
+->current()... ran normally (expected)
+->key()... ran normally (expected)
+->next()... ran normally (expected)
+->getATime()... ran normally (expected)
+->getBasename()... ran normally (expected)
+->getCTime()... ran normally (expected)
+->getExtension()... ran normally (expected)
+->getFilename()... ran normally (expected)
+->getGroup()... ran normally (expected)
+->getInode()... ran normally (expected)
+->getMTime()... ran normally (expected)
+->getOwner()... ran normally (expected)
+->getPath()... ran normally (expected)
+->getPathname()... ran normally (expected)
+->getPerms()... ran normally (expected)
+->getSize()... ran normally (expected)
+->getType()... ran normally (expected)
+->isDir()... ran normally (expected)
+->isDot()... ran normally (expected)
+->isExecutable()... ran normally (expected)
+->isFile()... ran normally (expected)
+->isLink()... ran normally (expected)
+->isReadable()... ran normally (expected)
+->isWritable()... ran normally (expected)
+->seek()... ran normally (expected)
+->__toString()... ran normally (expected)
+non-empty GlobIterator... ran normally (expected)
+======================= test there are no regressions =======================
+SplFileObject existent file... ran normally (expected)
+SplFileObject non-existent file... ran normally (expected)
+extends GlobIterator... threw LogicException (expected)
+extends SplFileObject... threw LogicException (expected)
+extends SplTempFileObject... threw LogicException (expected)