Fix bug #79589: ssl3_read_n:unexpected eof while reading

The unexpected EOF failure was introduced in OpenSSL 3.0 to prevent
truncation attack. However there are many non complaint servers and
it is causing break for many users including potential majority
of those where the truncation attack is not applicable. For that reason
we try to keep behavior consitent with older OpenSSL versions which is
also the path chosen by some other languages and web servers.

Closes GH-8369

NEWS

@@ -11,6 +11,10 @@ PHP                                                                        NEWS
   . Fixed bug GH-8461 (tracing JIT crash after function/method change).
     (Arnaud, Dmitry)
 
+- OpenSSL:
+  . Fixed bug #79589 (error:14095126:SSL routines:ssl3_read_n:unexpected eof
+    while reading). (Jakub Zelenka)
+
 - SPL:
   . Fixed bug GH-8235 (iterator_count() may run indefinitely). (cmb)
 

ext/openssl/tests/bug79589.phpt

@@ -0,0 +1,21 @@
+--TEST--
+Bug #65538: TLS unexpected EOF failure
+--EXTENSIONS--
+openssl
+--SKIPIF--
+<?php
+if (getenv("SKIP_ONLINE_TESTS")) die("skip online test");
+?>
+--FILE--
+<?php
+
+$release = file_get_contents(
+    'https://chromedriver.storage.googleapis.com/LATEST_RELEASE',
+    false,
+    stream_context_create(['ssl' => ['verify_peer'=> false]])
+);
+echo gettype($release);
+
+?>
+--EXPECT--
+string

ext/openssl/xp_ssl.c

@@ -1639,6 +1639,11 @@ int php_openssl_setup_crypto(php_stream *stream,
 
 	ssl_ctx_options &= ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
 
+#ifdef SSL_OP_IGNORE_UNEXPECTED_EOF
+	/* Only for OpenSSL 3+ to keep OpenSSL 1.1.1 behavior */
+	ssl_ctx_options |= SSL_OP_IGNORE_UNEXPECTED_EOF;
+#endif
+
 	if (!GET_VER_OPT("disable_compression") || zend_is_true(val)) {
 		ssl_ctx_options |= SSL_OP_NO_COMPRESSION;
 	}