do not panic on message without event field
intead discard it and try again
This commit is contained in:
jole
parent
fded248b7e
commit
9fde540089
149
src/ipc.rs
149
src/ipc.rs
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@ -335,79 +335,88 @@ fn try_convert_property(name: &str, id: usize, data: MpvDataType) -> Event {
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}
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pub fn listen(instance: &mut Mpv) -> Result<Event, Error> {
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let mut response = String::new();
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instance.reader.read_line(&mut response).unwrap();
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response = response.trim_end().to_string();
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debug!("Event: {}", response);
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let mut e;
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// sometimes we get responses unrelated to events, so we read a new line until we receive one
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// with an event field
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let name = loop {
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let mut response = String::new();
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instance.reader.read_line(&mut response).unwrap();
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response = response.trim_end().to_string();
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debug!("Event: {}", response);
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let e = serde_json::from_str::<Value>(&response)
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.map_err(|why| Error(ErrorCode::JsonParseError(why.to_string())))?;
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e = serde_json::from_str::<Value>(&response)
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.map_err(|why| Error(ErrorCode::JsonParseError(why.to_string())))?;
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if let Value::String(ref name) = e["event"] {
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let event = match name.as_str() {
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"shutdown" => Event::Shutdown,
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"start-file" => Event::StartFile,
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"file-loaded" => Event::FileLoaded,
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"seek" => Event::Seek,
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"playback-restart" => Event::PlaybackRestart,
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"idle" => Event::Idle,
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"tick" => Event::Tick,
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"video-reconfig" => Event::VideoReconfig,
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"audio-reconfig" => Event::AudioReconfig,
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"tracks-changed" => Event::TracksChanged,
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"track-switched" => Event::TrackSwitched,
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"pause" => Event::Pause,
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"unpause" => Event::Unpause,
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"metadata-update" => Event::MetadataUpdate,
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"chapter-change" => Event::ChapterChange,
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"end-file" => Event::EndFile,
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"property-change" => {
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let name = match e["name"] {
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Value::String(ref n) => Ok(n.to_string()),
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_ => Err(Error(ErrorCode::JsonContainsUnexptectedType)),
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}?;
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let id: usize = match e["id"] {
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Value::Number(ref n) => n.as_u64().unwrap() as usize,
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_ => 0,
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};
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let data: MpvDataType = match e["data"] {
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Value::String(ref n) => MpvDataType::String(n.to_string()),
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Value::Array(ref a) => {
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if name == "playlist".to_string() {
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MpvDataType::Playlist(Playlist(json_array_to_playlist(a)))
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} else {
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MpvDataType::Array(json_array_to_vec(a))
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}
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}
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Value::Bool(b) => MpvDataType::Bool(b),
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Value::Number(ref n) => {
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if n.is_u64() {
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MpvDataType::Usize(n.as_u64().unwrap() as usize)
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} else if n.is_f64() {
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MpvDataType::Double(n.as_f64().unwrap())
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} else {
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return Err(Error(ErrorCode::JsonContainsUnexptectedType));
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}
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}
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Value::Object(ref m) => MpvDataType::HashMap(json_map_to_hashmap(m)),
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Value::Null => MpvDataType::Null,
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};
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try_convert_property(name.as_ref(), id, data)
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match e["event"] {
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Value::String(ref name) => break name,
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_ => {
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// It was not an event - try again
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debug!("Bad response: {:?}", response)
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}
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_ => Event::Unimplemented,
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};
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Ok(event)
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} else {
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unreachable!();
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}
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}
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};
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let event = match name.as_str() {
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"shutdown" => Event::Shutdown,
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"start-file" => Event::StartFile,
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"file-loaded" => Event::FileLoaded,
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"seek" => Event::Seek,
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"playback-restart" => Event::PlaybackRestart,
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"idle" => Event::Idle,
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"tick" => Event::Tick,
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"video-reconfig" => Event::VideoReconfig,
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"audio-reconfig" => Event::AudioReconfig,
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"tracks-changed" => Event::TracksChanged,
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"track-switched" => Event::TrackSwitched,
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"pause" => Event::Pause,
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"unpause" => Event::Unpause,
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"metadata-update" => Event::MetadataUpdate,
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"chapter-change" => Event::ChapterChange,
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"end-file" => Event::EndFile,
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"property-change" => {
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let name = match e["name"] {
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Value::String(ref n) => Ok(n.to_string()),
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_ => Err(Error(ErrorCode::JsonContainsUnexptectedType)),
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}?;
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let id: usize = match e["id"] {
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Value::Number(ref n) => n.as_u64().unwrap() as usize,
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_ => 0,
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};
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let data: MpvDataType = match e["data"] {
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Value::String(ref n) => MpvDataType::String(n.to_string()),
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Value::Array(ref a) => {
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if name == "playlist".to_string() {
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MpvDataType::Playlist(Playlist(json_array_to_playlist(a)))
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} else {
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MpvDataType::Array(json_array_to_vec(a))
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}
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}
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Value::Bool(b) => MpvDataType::Bool(b),
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Value::Number(ref n) => {
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if n.is_u64() {
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MpvDataType::Usize(n.as_u64().unwrap() as usize)
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} else if n.is_f64() {
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MpvDataType::Double(n.as_f64().unwrap())
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} else {
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return Err(Error(ErrorCode::JsonContainsUnexptectedType));
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}
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}
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Value::Object(ref m) => MpvDataType::HashMap(json_map_to_hashmap(m)),
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Value::Null => MpvDataType::Null,
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};
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try_convert_property(name.as_ref(), id, data)
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}
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_ => Event::Unimplemented,
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};
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Ok(event)
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}
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pub fn listen_raw(instance: &mut Mpv) -> String {
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