Make sure StoredPlaylists always contain UTF-8 paths that are either

relative paths in the DB or URLs.  The main functional difference is that
playlistmove and playlistdelete will rewrite playlists in the correct
encoding and remove invalid lines instead of potentially modifying them.
The specific changes are:

appendSongToStoredPlaylist:
* Don't convert to FS charset
* Don't prepend music_directory if saving absolute paths

writeStoredPlaylistToPath:
* Convert to FS charset
* Prepend music_directory if saving absolute paths

loadStoredPlaylist:
* Make sure each line is either in the DB or a URL

loadPlaylist:
* Don't bother checking paths, since it's done in loadStoredPlaylist now

git-svn-id: https://svn.musicpd.org/mpd/trunk@6266 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 37 insertions, 20 deletions

diff --git a/src/storedPlaylist.c b/src/storedPlaylist.c
index a4b135716..9cdfeabf0 100644
--- a/src/storedPlaylist.c
+++ b/src/storedPlaylist.c
@@ -23,6 +23,8 @@
 #include "playlist.h"
 #include "ack.h"
 #include "command.h"
+#include "ls.h"
+#include "directory.h"
 
 #include <string.h>
 #include <errno.h>
@@ -96,6 +98,11 @@ static ListNode *nodeOfStoredPlaylist(StoredPlaylist *sp, int index)
 	return NULL;
 }
 
+static void appendSongToStoredPlaylist(StoredPlaylist *sp, Song *song)
+{
+	insertInListWithoutKey(sp->list, strdup(getSongUrl(song)));
+}
+
 StoredPlaylist *newStoredPlaylist(const char *utf8name, int fd, int ignoreExisting)
 {
 	struct stat buf;
@@ -138,6 +145,7 @@ StoredPlaylist *loadStoredPlaylist(const char *utf8path, int fd)
 	int parentlen = strlen(parent);
 	int tempInt;
 	int commentCharFound = 0;
+	Song *song;
 
 	filename = utf8pathToFsPathInStoredPlaylist(utf8path, fd);
 	if (!filename)
@@ -182,10 +190,22 @@ StoredPlaylist *loadStoredPlaylist(const char *utf8path, int fd)
 			}
 			slength = 0;
 			temp = fsCharsetToUtf8(s);
-			if (!temp)
-				continue;
-			if (!commentCharFound)
-				insertInListWithoutKey(sp->list, strdup(s));
+			if (temp && !commentCharFound) {
+				song = getSongFromDB(temp);
+				if (song) {
+					appendSongToStoredPlaylist(sp, song);
+					continue;
+				}
+
+				if (!isValidRemoteUtf8Url(temp))
+					continue;
+
+				song = newSong(temp, SONG_TYPE_URL, NULL);
+				if (song) {
+					appendSongToStoredPlaylist(sp, song);
+					freeJustSong(song);
+				}
+			}
 		} else if (slength == MAXPATHLEN) {
 			s[slength] = '\0';
 			commandError(sp->fd, ACK_ERROR_PLAYLIST_LOAD,
@@ -365,8 +385,9 @@ int removeOneSongFromStoredPlaylistByPath(int fd, const char *utf8path, int pos)
 
 static int writeStoredPlaylistToPath(StoredPlaylist *sp, const char *fspath)
 {
-	FILE *file;
 	ListNode *node;
+	FILE *file;
+	char *s;
 
 	if (fspath == NULL)
 		return -1;
@@ -380,7 +401,12 @@ static int writeStoredPlaylistToPath(StoredPlaylist *sp, const char *fspath)
 
 	node = sp->list->firstNode;
 	while (node != NULL) {
-		fprintf(file, "%s\n", (char *)node->data);
+		s = (char *)node->data;
+		if (isValidRemoteUtf8Url(s) || !playlist_saveAbsolutePaths)
+			s = utf8ToFsCharset(s);
+		else
+			s = rmp2amp(utf8ToFsCharset(s));
+		fprintf(file, "%s\n", s);
 		node = node->nextNode;
 	}
 
@@ -393,22 +419,11 @@ int writeStoredPlaylist(StoredPlaylist *sp)
 	return writeStoredPlaylistToPath(sp, sp->fspath);
 }
 
-static void appendSongToStoredPlaylist(StoredPlaylist *sp, Song *song)
-{
-	char *s;
-
-	if (playlist_saveAbsolutePaths && song->type == SONG_TYPE_FILE)
-		s = rmp2amp(utf8ToFsCharset(getSongUrl(song)));
-	else
-		s = utf8ToFsCharset(getSongUrl(song));
-
-	insertInListWithoutKey(sp->list, strdup(s));
-}
-
 int appendSongToStoredPlaylistByPath(int fd, const char *utf8path, Song *song)
 {
 	char *filename;
 	FILE *file;
+	char *s;
 
 	filename = utf8pathToFsPathInStoredPlaylist(utf8path, fd);
 	if (!filename)
@@ -422,9 +437,11 @@ int appendSongToStoredPlaylistByPath(int fd, const char *utf8path, Song *song)
 	}
 
 	if (playlist_saveAbsolutePaths && song->type == SONG_TYPE_FILE)
-		fprintf(file, "%s\n", rmp2amp(utf8ToFsCharset(getSongUrl(song))));
+		s = rmp2amp(utf8ToFsCharset(getSongUrl(song)));
 	else
-		fprintf(file, "%s\n", utf8ToFsCharset(getSongUrl(song)));
+		s = utf8ToFsCharset(getSongUrl(song));
+
+	fprintf(file, "%s\n", s);
 
 	while (fclose(file) != 0 && errno == EINTR);
 	return 0;