From ceb2e1026d4295d3831d080dc18f8ca5db56bc5c Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Sun, 4 Dec 2016 23:15:31 +0100
Subject: demux, stream: add option to prevent opening referenced files

Quite irresponsibly hacked together. Sue me.
---
 stream/stream.c        | 6 ++++++
 stream/stream.h        | 1 +
 stream/stream_bluray.c | 3 +++
 stream/stream_dvd.c    | 3 +++
 stream/stream_dvdnav.c | 3 +++
 5 files changed, 16 insertions(+)

(limited to 'stream')

diff --git a/stream/stream.c b/stream/stream.c
index c936c5c77e..4c7aa04844 100644
--- a/stream/stream.c
+++ b/stream/stream.c
@@ -230,6 +230,12 @@ static int open_internal(const stream_info_t *sinfo, const char *url, int flags,
     s->is_network = sinfo->is_network;
     s->mode = flags & (STREAM_READ | STREAM_WRITE);
 
+    if (global->config) {
+        int opt;
+        mp_read_option_raw(global, "access-references", &m_option_type_flag, &opt);
+        s->access_references = opt;
+    }
+
     MP_VERBOSE(s, "Opening %s\n", url);
 
     if ((s->mode & STREAM_WRITE) && !sinfo->can_write) {
diff --git a/stream/stream.h b/stream/stream.h
index 4444da8ed3..7d44e30eae 100644
--- a/stream/stream.h
+++ b/stream/stream.h
@@ -197,6 +197,7 @@ typedef struct stream {
     bool fast_skip : 1; // consider stream fast enough to fw-seek by skipping
     bool is_network : 1; // original stream_info_t.is_network flag
     bool allow_caching : 1; // stream cache makes sense
+    bool access_references : 1; // open other streams
     struct mp_log *log;
     struct mpv_global *global;
 
diff --git a/stream/stream_bluray.c b/stream/stream_bluray.c
index 26a78e5f21..5f083954c2 100644
--- a/stream/stream_bluray.c
+++ b/stream/stream_bluray.c
@@ -569,6 +569,9 @@ static int bdmv_dir_stream_open(stream_t *stream)
         .cfg_title = BLURAY_DEFAULT_TITLE,
     };
 
+    if (!stream->access_references)
+        goto unsupported;
+
     char *path = mp_file_get_path(priv, bstr0(stream->url));
     if (!path)
         goto unsupported;
diff --git a/stream/stream_dvd.c b/stream/stream_dvd.c
index 4b423de630..338c23633c 100644
--- a/stream/stream_dvd.c
+++ b/stream/stream_dvd.c
@@ -951,6 +951,9 @@ static int ifo_stream_open(stream_t *stream)
     dvd_priv_t *priv = talloc_zero(stream, dvd_priv_t);
     stream->priv = priv;
 
+    if (!stream->access_references)
+        goto unsupported;
+
     char *path = mp_file_get_path(priv, bstr0(stream->url));
     if (!path)
         goto unsupported;
diff --git a/stream/stream_dvdnav.c b/stream/stream_dvdnav.c
index ec15c83b20..1178f50857 100644
--- a/stream/stream_dvdnav.c
+++ b/stream/stream_dvdnav.c
@@ -562,6 +562,9 @@ static int ifo_dvdnav_stream_open(stream_t *stream)
     struct priv *priv = talloc_zero(stream, struct priv);
     stream->priv = priv;
 
+    if (!stream->access_references)
+        goto unsupported;
+
     priv->track = TITLE_LONGEST;
 
     char *path = mp_file_get_path(priv, bstr0(stream->url));
-- 
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