Centralize decryption in `jirafeau_decrypt_file()`

[jirafeau_project.git] / f.php

diff --git a/f.php b/f.php
index 854da83444d1b4bcf767aa7badd85e4c49b98473..e1671545ae86a417ccf651f1d27c97a590ac3933 100644 (file)
--- a/f.php
+++ b/f.php
@@ -248,29 +248,9 @@ 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']) {