Config option to enforce "classic download" without HTML5 File API

[jirafeau.git] / f.php

diff --git a/f.php b/f.php
index 854da83444d1b4bcf767aa7badd85e4c49b98473..f523f728a2e57f0dfc75498a40315283033d0d8e 100644 (file)
--- a/f.php
+++ b/f.php
@@ -3,6 +3,7 @@
  *  Jirafeau, your web file repository
  *  Copyright (C) 2008  Julien "axolotl" BERNARD <axolotl@magieeternelle.org>
  *  Copyright (C) 2015  Jerome Jutteau <jerome@jutteau.fr>
+ *  Copyright (C) 2024  Jirafeau project <https://gitlab.com/jirafeau> (see AUTHORS.md)
  *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU Affero General Public License as
@@ -15,7 +16,7 @@
  *  GNU Affero General Public License for more details.
  *
  *  You should have received a copy of the GNU Affero General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 define('JIRAFEAU_ROOT', dirname(__FILE__) . '/');
 
@@ -248,49 +249,13 @@ if ($cfg['litespeed_workaround']) {
                $_SERVER['QUERY_STRING'] . '&litespeed_workaround=phase2');
     }
 }
-/* Read encrypted file. */
+/* Read encrypted file (Sodium mode). */
 elseif ($link['crypted']) {
-    /* Decrypt file. */
-    $r = fopen(VAR_FILES . $p . $link['hash'], 'rb');
-    $fs = fstat($r)['size'];
-
-    $crypt_header = fread($r, SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES);
-
-    /* Init module. */
-    $crypt_state = sodium_crypto_secretstream_xchacha20poly1305_init_pull($crypt_header, $crypt_key);
-
-    /* Decrypt file. */
-
-    for ($i = SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES; $i < $fs; $i += JIRAFEAU_SODIUM_CHUNKSIZE + SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES) {
-        $to_dec = fread($r, JIRAFEAU_SODIUM_CHUNKSIZE + SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES);
-        [$dec, $crypt_tag] = sodium_crypto_secretstream_xchacha20poly1305_pull($crypt_state, $to_dec);
-        echo $dec;
-    }
-
-    fclose($r);
-
-    /* Cleanup. */
-    sodium_memzero($crypt_state);
+    jirafeau_decrypt_file(VAR_FILES . $p . $link['hash'], 'php://output', $crypt_key);
 }
 /* Read encrypted file (legacy mode using mcrypt). */
 elseif ($link['crypted_legacy']) {
-    /* Init module */
-    $m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
-    /* Extract key and iv. */
-    $hash_key = md5($crypt_key);
-    $iv = jirafeau_crypt_create_iv($hash_key, mcrypt_enc_get_iv_size($m));
-    /* Init module. */
-    mcrypt_generic_init($m, $hash_key, $iv);
-    /* Decrypt file. */
-    $r = fopen(VAR_FILES . $p . $link['hash'], 'r');
-    while (!feof($r)) {
-        $dec = mdecrypt_generic($m, fread($r, 1024));
-        print $dec;
-    }
-    fclose($r);
-    /* Cleanup. */
-    mcrypt_generic_deinit($m);
-    mcrypt_module_close($m);
+    jirafeau_decrypt_file_legacy(VAR_FILES . $p . $link['hash'], 'php://output', $crypt_key);
 }
 /* Read file. */
 else {