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LocateUri: pass URI plugin kind, optionally disables plugin verify 

Commit b3a458338a added a LocateUri()
call to several playlist commands, which applied InputPlugin URI
scheme verification to playlist URIs.  This broke the SoundCloud
playlist plugin which uses "soundcloud://" URIs for which no input
plugin exists.

This commit allows the caller to specify the kind of plugin which
shall be used to verify the URI.  Right now, only "input" is
implemented; "storage" uses the "input" verification for now; and
"playlist" has no verification at all (for now).

Closes https://github.com/MusicPlayerDaemon/MPD/issues/528
This commit is contained in:
Max Kellermann 2019-04-18 10:03:15 +02:00
parent 7d814cc899
commit ead3dc6a92
8 changed files with 42 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
NEWS
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@ -2,6 +2,8 @@ ver 0.21.8 (not yet released)
* output
- httpd: add missing mutex lock
- httpd: fix use-after-free bug
* playlist
- soundcloud: fix "Unsupported URI scheme" (0.21.6 regression)
* fix Bonjour bug
* fix build failure with GCC 9
* fix build failure with -Ddatabase=false

23
src/LocateUri.cxx
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@ -55,14 +55,26 @@ LocateFileUri(const char *uri, const Client *client
}
static LocatedUri
LocateAbsoluteUri(const char *uri
LocateAbsoluteUri(UriPluginKind kind, const char *uri
#ifdef ENABLE_DATABASE
, const Storage *storage
#endif
)
{
if (!uri_supported_scheme(uri))
throw std::runtime_error("Unsupported URI scheme");
switch (kind) {
case UriPluginKind::INPUT:
case UriPluginKind::STORAGE: // TODO: separate check for storage plugins
if (!uri_supported_scheme(uri))
throw std::runtime_error("Unsupported URI scheme");
break;
case UriPluginKind::PLAYLIST:
/* for now, no validation for playlist URIs; this is
more complicated because there are three ways to
identify which plugin to use: URI scheme, filename
suffix and MIME type */
break;
}
#ifdef ENABLE_DATABASE
if (storage != nullptr) {
@ -76,7 +88,8 @@ LocateAbsoluteUri(const char *uri
}
LocatedUri
LocateUri(const char *uri, const Client *client
LocateUri(UriPluginKind kind,
const char *uri, const Client *client
#ifdef ENABLE_DATABASE
, const Storage *storage
#endif
@ -100,7 +113,7 @@ LocateUri(const char *uri, const Client *client
#endif
);
else if (uri_has_scheme(uri))
return LocateAbsoluteUri(uri
return LocateAbsoluteUri(kind, uri
#ifdef ENABLE_DATABASE
, storage
#endif

9
src/LocateUri.hxx
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@ -41,6 +41,12 @@ class Client;
class Storage;
#endif
enum class UriPluginKind {
INPUT,
STORAGE,
PLAYLIST,
};
struct LocatedUri {
enum class Type {
/**
@ -84,7 +90,8 @@ struct LocatedUri {
* that feature is disabled if this parameter is nullptr
*/
LocatedUri
LocateUri(const char *uri, const Client *client
LocateUri(UriPluginKind kind,
const char *uri, const Client *client
#ifdef ENABLE_DATABASE
, const Storage *storage
#endif

3
src/SongLoader.cxx
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@ -94,7 +94,8 @@ SongLoader::LoadSong(const char *uri_utf8) const
assert(uri_utf8 != nullptr);
#endif
const auto located_uri = LocateUri(uri_utf8, client
const auto located_uri = LocateUri(UriPluginKind::INPUT,
uri_utf8, client
#ifdef ENABLE_DATABASE
, storage
#endif

4
src/command/FileCommands.cxx
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@ -218,7 +218,7 @@ handle_read_comments(Client &client, Request args, Response &r)
const char *const uri = args.front();
const auto located_uri = LocateUri(uri, &client
const auto located_uri = LocateUri(UriPluginKind::INPUT, uri, &client
#ifdef ENABLE_DATABASE
, nullptr
#endif
@ -331,7 +331,7 @@ handle_album_art(Client &client, Request args, Response &r)
const char *uri = args.front();
size_t offset = args.ParseUnsigned(1);
const auto located_uri = LocateUri(uri, &client
const auto located_uri = LocateUri(UriPluginKind::INPUT, uri, &client
#ifdef ENABLE_DATABASE
, nullptr
#endif

4
src/command/OtherCommands.cxx
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@ -99,7 +99,7 @@ handle_listfiles(Client &client, Request args, Response &r)
/* default is root directory */
const auto uri = args.GetOptional(0, "");
const auto located_uri = LocateUri(uri, &client
const auto located_uri = LocateUri(UriPluginKind::STORAGE, uri, &client
#ifdef ENABLE_DATABASE
, nullptr
#endif
@ -219,7 +219,7 @@ handle_lsinfo(Client &client, Request args, Response &r)
compatibility, work around this here */
uri = "";
const auto located_uri = LocateUri(uri, &client
const auto located_uri = LocateUri(UriPluginKind::INPUT, uri, &client
#ifdef ENABLE_DATABASE
, nullptr
#endif

9
src/command/PlaylistCommands.cxx
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@ -69,7 +69,8 @@ handle_save(Client &client, Request args, gcc_unused Response &r)
CommandResult
handle_load(Client &client, Request args, gcc_unused Response &r)
{
const auto uri = LocateUri(args.front(), &client
const auto uri = LocateUri(UriPluginKind::PLAYLIST, args.front(),
&client
#ifdef ENABLE_DATABASE
, nullptr
#endif
@ -99,7 +100,8 @@ handle_load(Client &client, Request args, gcc_unused Response &r)
CommandResult
handle_listplaylist(Client &client, Request args, Response &r)
{
const auto name = LocateUri(args.front(), &client
const auto name = LocateUri(UriPluginKind::PLAYLIST, args.front(),
&client
#ifdef ENABLE_DATABASE
, nullptr
#endif
@ -115,7 +117,8 @@ handle_listplaylist(Client &client, Request args, Response &r)
CommandResult
handle_listplaylistinfo(Client &client, Request args, Response &r)
{
const auto name = LocateUri(args.front(), &client
const auto name = LocateUri(UriPluginKind::PLAYLIST, args.front(),
&client
#ifdef ENABLE_DATABASE
, nullptr
#endif

3
src/command/QueueCommands.cxx
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@ -83,7 +83,8 @@ handle_add(Client &client, Request args, Response &r)
here */
uri = "";
const auto located_uri = LocateUri(uri, &client
const auto located_uri = LocateUri(UriPluginKind::INPUT, uri,
&client
#ifdef ENABLE_DATABASE
, nullptr
#endif