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-rw-r--r--src/PlaylistPrint.cxx16
-rw-r--r--src/PlaylistQueue.cxx7
-rw-r--r--src/PlaylistSong.cxx96
-rw-r--r--src/PlaylistSong.hxx10
4 files changed, 55 insertions, 74 deletions
diff --git a/src/PlaylistPrint.cxx b/src/PlaylistPrint.cxx
index c984ea224..38d63f4e8 100644
--- a/src/PlaylistPrint.cxx
+++ b/src/PlaylistPrint.cxx
@@ -156,15 +156,13 @@ playlist_provider_print(Client &client, const char *uri,
DetachedSong *song;
while ((song = e.NextSong()) != nullptr) {
- song = playlist_check_translate_song(song, base_uri.c_str(),
- false);
- if (song == nullptr)
- continue;
-
- if (detail)
- song_print_info(client, *song);
- else
- song_print_uri(client, *song);
+ if (playlist_check_translate_song(*song, base_uri.c_str(),
+ false)) {
+ if (detail)
+ song_print_info(client, *song);
+ else
+ song_print_uri(client, *song);
+ }
delete song;
}
diff --git a/src/PlaylistQueue.cxx b/src/PlaylistQueue.cxx
index e65608bf4..0a45920e3 100644
--- a/src/PlaylistQueue.cxx
+++ b/src/PlaylistQueue.cxx
@@ -48,10 +48,11 @@ playlist_load_into_queue(const char *uri, SongEnumerator &e,
continue;
}
- song = playlist_check_translate_song(song, base_uri.c_str(),
- secure);
- if (song == nullptr)
+ if (!playlist_check_translate_song(*song, base_uri.c_str(),
+ secure)) {
+ delete song;
continue;
+ }
PlaylistResult result = dest.AppendSong(pc, std::move(*song));
delete song;
diff --git a/src/PlaylistSong.cxx b/src/PlaylistSong.cxx
index beb2d186f..bcbdc30be 100644
--- a/src/PlaylistSong.cxx
+++ b/src/PlaylistSong.cxx
@@ -34,83 +34,70 @@
#include <string.h>
static void
-merge_song_metadata(DetachedSong &dest, const DetachedSong &base,
- const DetachedSong &add)
+merge_song_metadata(DetachedSong &add, const DetachedSong &base)
{
{
TagBuilder builder(add.GetTag());
builder.Complement(base.GetTag());
- dest.SetTag(builder.Commit());
+ add.SetTag(builder.Commit());
}
- dest.SetLastModified(base.GetLastModified());
- dest.SetStartMS(add.GetStartMS());
- dest.SetEndMS(add.GetEndMS());
+ add.SetLastModified(base.GetLastModified());
}
-static DetachedSong *
-apply_song_metadata(DetachedSong *dest, const DetachedSong &src)
+static void
+apply_song_metadata(DetachedSong &dest, const DetachedSong &src)
{
- assert(dest != nullptr);
-
if (!src.GetTag().IsDefined() &&
src.GetStartMS() == 0 && src.GetEndMS() == 0)
- return dest;
+ return;
- DetachedSong *tmp = new DetachedSong(dest->GetURI());
- merge_song_metadata(*tmp, *dest, src);
+ merge_song_metadata(dest, src);
- if (dest->GetTag().IsDefined() && dest->GetTag().time > 0 &&
+ if (dest.GetTag().IsDefined() && dest.GetTag().time > 0 &&
src.GetStartMS() > 0 && src.GetEndMS() == 0 &&
- src.GetStartMS() / 1000 < (unsigned)dest->GetTag().time)
+ src.GetStartMS() / 1000 < (unsigned)dest.GetTag().time)
/* the range is open-ended, and the playlist plugin
did not know the total length of the song file
(e.g. last track on a CUE file); fix it up here */
- tmp->WritableTag().time =
- dest->GetTag().time - src.GetStartMS() / 1000;
-
- delete dest;
- return tmp;
+ dest.WritableTag().time =
+ dest.GetTag().time - src.GetStartMS() / 1000;
}
-static DetachedSong *
-playlist_check_load_song(const DetachedSong *song, const char *uri)
+static bool
+playlist_check_load_song(DetachedSong &song)
{
- DetachedSong *dest;
+ const char *const uri = song.GetURI();
if (uri_has_scheme(uri)) {
- dest = new DetachedSong(uri);
+ return true;
} else if (PathTraitsUTF8::IsAbsolute(uri)) {
- dest = new DetachedSong(uri);
- if (!dest->Update()) {
- delete dest;
- return nullptr;
- }
+ DetachedSong tmp(uri);
+ if (!tmp.Update())
+ return false;
+
+ apply_song_metadata(song, tmp);
+ return true;
} else {
- dest = DatabaseDetachSong(uri, IgnoreError());
- if (dest == nullptr)
- return nullptr;
- }
+ DetachedSong *tmp = DatabaseDetachSong(uri, IgnoreError());
+ if (tmp == nullptr)
+ return false;
- return apply_song_metadata(dest, *song);
+ apply_song_metadata(song, *tmp);
+ delete tmp;
+ return true;
+ }
}
-DetachedSong *
-playlist_check_translate_song(DetachedSong *song, const char *base_uri,
+bool
+playlist_check_translate_song(DetachedSong &song, const char *base_uri,
bool secure)
{
- const char *uri = song->GetURI();
+ const char *const uri = song.GetURI();
- if (uri_has_scheme(uri)) {
- if (uri_supported_scheme(uri))
- /* valid remote song */
- return song;
- else {
- /* unsupported remote song */
- delete song;
- return nullptr;
- }
- }
+ if (uri_has_scheme(uri))
+ /* valid remote song? */
+ return uri_supported_scheme(uri);
if (base_uri != nullptr && strcmp(base_uri, ".") == 0)
/* PathTraitsUTF8::GetParent() returns "." when there
@@ -125,25 +112,20 @@ playlist_check_translate_song(DetachedSong *song, const char *base_uri,
assert(suffix != nullptr);
if (suffix != uri)
- uri = suffix;
- else if (!secure) {
+ song.SetURI(std::string(suffix));
+ else if (!secure)
/* local files must be relative to the music
directory when "secure" is enabled */
- delete song;
- return nullptr;
- }
+ return false;
base_uri = nullptr;
}
if (base_uri != nullptr) {
- song->SetURI(PathTraitsUTF8::Build(base_uri, uri));
+ song.SetURI(PathTraitsUTF8::Build(base_uri, uri));
/* repeat the above checks */
return playlist_check_translate_song(song, nullptr, secure);
}
- DetachedSong *dest = playlist_check_load_song(song, uri);
- delete song;
-
- return dest;
+ return playlist_check_load_song(song);
}
diff --git a/src/PlaylistSong.hxx b/src/PlaylistSong.hxx
index 826b4d92d..2a47b28db 100644
--- a/src/PlaylistSong.hxx
+++ b/src/PlaylistSong.hxx
@@ -23,15 +23,15 @@
class DetachedSong;
/**
- * Verifies the song, returns nullptr if it is unsafe. Translate the
- * song to a new song object within the database, if it is a local
- * file. The old song object is freed.
+ * Verifies the song, returns false if it is unsafe. Translate the
+ * song to a song within the database, if it is a local file.
*
* @param secure if true, then local files are only allowed if they
* are relative to base_uri
+ * @return true on success, false if the song should not be used
*/
-DetachedSong *
-playlist_check_translate_song(DetachedSong *song, const char *base_uri,
+bool
+playlist_check_translate_song(DetachedSong &song, const char *base_uri,
bool secure);
#endif