+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($crypt_state);
+}
+/* Read encrypted file (legacy mode using mcrypt). */
+elseif ($link['crypted_legacy']) {