KeyError when meta stream gets property update #74

Open
Open
KeyError when meta stream gets property update#74

Description

@mill1000
mill1000
opened on Oct 10, 2024

In my Snapcast setup I have multiple input-only streams that get grouped within a meta stream. This meta stream also get grouped into another meta stream.

Some of the input-only streams have a control script to provide stream properties & metadata. When a properties update is received a KeyError is thrown from _on_stream_properties.

Here's a simplified setup

# Input only streams
source = pipe:///streams/gmrender-resurrect-all-rooms?name=upnp-all-rooms&codec=null&controlscript=/usr/local/bin/snapcast-upnp
source = airplay:////usr/local/bin/shairport-sync?name=airplay-all-rooms&devicename=Snapcast - All Rooms&port=5000&codec=null
source = librespot:///bin/librespot?name=spotify-all-rooms&devicename=Snapcast - All Rooms&codec=null
# Input only meta source for all rooms
source = meta:///upnp-all-rooms/airplay-all-rooms/spotify-all-rooms?name=all-rooms&codec=null
# Meta sources for individual rooms
source = meta:///upnp-bedroom/airplay-bedroom/spotify-bedroom/all-rooms?name=Bedroom
source = meta:///upnp-living-room/airplay-living-room/spotify-living-room/all-rooms?name=Living Room

Pretty much it's Input-only stream w/ script -> Input-only meta stream -> Meta stream

And here's the error

ERROR: Fatal error: protocol.data_received() call failed.
protocol: <snapcast.control.protocol.SnapcastProtocol object at 0x7f57e6fa0e50>
transport: <_SelectorSocketTransport fd=6 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/usr/lib/python3.11/asyncio/selector_events.py", line 1009, in _read_ready__data_received
self._protocol.data_received(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 54, in data_received
self.handle_data(item)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 61, in handle_data
self.handle_notification(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 73, in handle_notification
self._callbacks.get(data.get('method'))(data.get('params'))
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/server.py", line 420, in _on_stream_properties
stream = self._streams[data.get('id')]
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
KeyError: 'all-rooms'

I dumped the contents of self._streams and the incoming data. It appears Snapcast is generating a properties update for the 2nd meta stream which the library is not tracking.

Contents of self._streams

{'Bedroom': Snapstream (Bedroom), 'Living Room': Snapstream (Living Room)}

Incoming data

{'id': 'all-rooms', 'properties': {'canControl': False, 'canGoNext': False, 'canGoPrevious': False, 'canPause': False, 'canPlay': False, 'canSeek': False, 'loopStatus': 'none', 'mute': False, 'playbackStatus': 'playing', 'position': 0.0, 'rate': 1.0, 'shuffle': False, 'volume': 100}}

I don't know if Snapcast shouldn't be generating the update for this meta stream, but at least this library can add a check for the ID.

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions

      , 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
       blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

      Skip to content
      KeyError when meta stream gets property update #74
      Open
      Open
      KeyError when meta stream gets property update#74
      Description
      @mill1000
      mill1000
      opened on Oct 10, 2024
      In my Snapcast setup I have multiple input-only streams that get grouped within a meta stream. This meta stream also get grouped into another meta stream.
      Some of the input-only streams have a control script to provide stream properties & metadata. When a properties update is received a KeyError is thrown from _on_stream_properties.
      Here's a simplified setup
      # Input only streams
source = pipe:///streams/gmrender-resurrect-all-rooms?name=upnp-all-rooms&codec=null&controlscript=/usr/local/bin/snapcast-upnp
source = airplay:////usr/local/bin/shairport-sync?name=airplay-all-rooms&devicename=Snapcast - All Rooms&port=5000&codec=null
source = librespot:///bin/librespot?name=spotify-all-rooms&devicename=Snapcast - All Rooms&codec=null
# Input only meta source for all rooms
source = meta:///upnp-all-rooms/airplay-all-rooms/spotify-all-rooms?name=all-rooms&codec=null
# Meta sources for individual rooms
source = meta:///upnp-bedroom/airplay-bedroom/spotify-bedroom/all-rooms?name=Bedroom
source = meta:///upnp-living-room/airplay-living-room/spotify-living-room/all-rooms?name=Living Room

      Pretty much it's Input-only stream w/ script -> Input-only meta stream -> Meta stream
      And here's the error
      ERROR: Fatal error: protocol.data_received() call failed.
protocol: <snapcast.control.protocol.SnapcastProtocol object at 0x7f57e6fa0e50>
transport: <_SelectorSocketTransport fd=6 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/usr/lib/python3.11/asyncio/selector_events.py", line 1009, in _read_ready__data_received
self._protocol.data_received(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 54, in data_received
self.handle_data(item)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 61, in handle_data
self.handle_notification(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 73, in handle_notification
self._callbacks.get(data.get('method'))(data.get('params'))
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/server.py", line 420, in _on_stream_properties
stream = self._streams[data.get('id')]
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
KeyError: 'all-rooms'

      I dumped the contents of self._streams and the incoming data. It appears Snapcast is generating a properties update for the 2nd meta stream which the library is not tracking.
      Contents of self._streams
      {'Bedroom': Snapstream (Bedroom), 'Living Room': Snapstream (Living Room)}

      Incoming data
      {'id': 'all-rooms', 'properties': {'canControl': False, 'canGoNext': False, 'canGoPrevious': False, 'canPause': False, 'canPlay': False, 'canSeek': False, 'loopStatus': 'none', 'mute': False, 'playbackStatus': 'playing', 'position': 0.0, 'rate': 1.0, 'shuffle': False, 'volume': 100}}

      I don't know if Snapcast shouldn't be generating the update for this meta stream, but at least this library can add a check for the ID.
      Metadata
      Metadata
      Assignees
      No one assigned
        Labels
        No labels
        No labels
        Projects
        No projects
          Milestone
          No milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

          Skip to content
          KeyError when meta stream gets property update #74
          Open
          Open
          KeyError when meta stream gets property update#74
          Description
          @mill1000
          mill1000
          opened on Oct 10, 2024
          In my Snapcast setup I have multiple input-only streams that get grouped within a meta stream. This meta stream also get grouped into another meta stream.
          Some of the input-only streams have a control script to provide stream properties & metadata. When a properties update is received a KeyError is thrown from _on_stream_properties.
          Here's a simplified setup
          # Input only streams
source = pipe:///streams/gmrender-resurrect-all-rooms?name=upnp-all-rooms&codec=null&controlscript=/usr/local/bin/snapcast-upnp
source = airplay:////usr/local/bin/shairport-sync?name=airplay-all-rooms&devicename=Snapcast - All Rooms&port=5000&codec=null
source = librespot:///bin/librespot?name=spotify-all-rooms&devicename=Snapcast - All Rooms&codec=null
# Input only meta source for all rooms
source = meta:///upnp-all-rooms/airplay-all-rooms/spotify-all-rooms?name=all-rooms&codec=null
# Meta sources for individual rooms
source = meta:///upnp-bedroom/airplay-bedroom/spotify-bedroom/all-rooms?name=Bedroom
source = meta:///upnp-living-room/airplay-living-room/spotify-living-room/all-rooms?name=Living Room

          Pretty much it's Input-only stream w/ script -> Input-only meta stream -> Meta stream
          And here's the error
          ERROR: Fatal error: protocol.data_received() call failed.
protocol: <snapcast.control.protocol.SnapcastProtocol object at 0x7f57e6fa0e50>
transport: <_SelectorSocketTransport fd=6 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/usr/lib/python3.11/asyncio/selector_events.py", line 1009, in _read_ready__data_received
self._protocol.data_received(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 54, in data_received
self.handle_data(item)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 61, in handle_data
self.handle_notification(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 73, in handle_notification
self._callbacks.get(data.get('method'))(data.get('params'))
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/server.py", line 420, in _on_stream_properties
stream = self._streams[data.get('id')]
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
KeyError: 'all-rooms'

          I dumped the contents of self._streams and the incoming data. It appears Snapcast is generating a properties update for the 2nd meta stream which the library is not tracking.
          Contents of self._streams
          {'Bedroom': Snapstream (Bedroom), 'Living Room': Snapstream (Living Room)}

          Incoming data
          {'id': 'all-rooms', 'properties': {'canControl': False, 'canGoNext': False, 'canGoPrevious': False, 'canPause': False, 'canPlay': False, 'canSeek': False, 'loopStatus': 'none', 'mute': False, 'playbackStatus': 'playing', 'position': 0.0, 'rate': 1.0, 'shuffle': False, 'volume': 100}}

          I don't know if Snapcast shouldn't be generating the update for this meta stream, but at least this library can add a check for the ID.
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            No labels
            No labels
            Projects
            No projects
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              KeyError when meta stream gets property update #74
              Open
              Open
              KeyError when meta stream gets property update#74
              Description
              @mill1000
              mill1000
              opened on Oct 10, 2024
              In my Snapcast setup I have multiple input-only streams that get grouped within a meta stream. This meta stream also get grouped into another meta stream.
              Some of the input-only streams have a control script to provide stream properties & metadata. When a properties update is received a KeyError is thrown from _on_stream_properties.
              Here's a simplified setup
              # Input only streams
source = pipe:///streams/gmrender-resurrect-all-rooms?name=upnp-all-rooms&codec=null&controlscript=/usr/local/bin/snapcast-upnp
source = airplay:////usr/local/bin/shairport-sync?name=airplay-all-rooms&devicename=Snapcast - All Rooms&port=5000&codec=null
source = librespot:///bin/librespot?name=spotify-all-rooms&devicename=Snapcast - All Rooms&codec=null
# Input only meta source for all rooms
source = meta:///upnp-all-rooms/airplay-all-rooms/spotify-all-rooms?name=all-rooms&codec=null
# Meta sources for individual rooms
source = meta:///upnp-bedroom/airplay-bedroom/spotify-bedroom/all-rooms?name=Bedroom
source = meta:///upnp-living-room/airplay-living-room/spotify-living-room/all-rooms?name=Living Room

              Pretty much it's Input-only stream w/ script -> Input-only meta stream -> Meta stream
              And here's the error
              ERROR: Fatal error: protocol.data_received() call failed.
protocol: <snapcast.control.protocol.SnapcastProtocol object at 0x7f57e6fa0e50>
transport: <_SelectorSocketTransport fd=6 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/usr/lib/python3.11/asyncio/selector_events.py", line 1009, in _read_ready__data_received
self._protocol.data_received(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 54, in data_received
self.handle_data(item)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 61, in handle_data
self.handle_notification(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 73, in handle_notification
self._callbacks.get(data.get('method'))(data.get('params'))
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/server.py", line 420, in _on_stream_properties
stream = self._streams[data.get('id')]
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
KeyError: 'all-rooms'

              I dumped the contents of self._streams and the incoming data. It appears Snapcast is generating a properties update for the 2nd meta stream which the library is not tracking.
              Contents of self._streams
              {'Bedroom': Snapstream (Bedroom), 'Living Room': Snapstream (Living Room)}

              Incoming data
              {'id': 'all-rooms', 'properties': {'canControl': False, 'canGoNext': False, 'canGoPrevious': False, 'canPause': False, 'canPlay': False, 'canSeek': False, 'loopStatus': 'none', 'mute': False, 'playbackStatus': 'playing', 'position': 0.0, 'rate': 1.0, 'shuffle': False, 'volume': 100}}

              I don't know if Snapcast shouldn't be generating the update for this meta stream, but at least this library can add a check for the ID.
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                No labels
                No labels
                Projects
                No projects
                  Milestone
                  No milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

                  Skip to content
                  KeyError when meta stream gets property update #74
                  Open
                  Open
                  KeyError when meta stream gets property update#74
                  Description
                  @mill1000
                  mill1000
                  opened on Oct 10, 2024
                  In my Snapcast setup I have multiple input-only streams that get grouped within a meta stream. This meta stream also get grouped into another meta stream.
                  Some of the input-only streams have a control script to provide stream properties & metadata. When a properties update is received a KeyError is thrown from _on_stream_properties.
                  Here's a simplified setup
                  # Input only streams
source = pipe:///streams/gmrender-resurrect-all-rooms?name=upnp-all-rooms&codec=null&controlscript=/usr/local/bin/snapcast-upnp
source = airplay:////usr/local/bin/shairport-sync?name=airplay-all-rooms&devicename=Snapcast - All Rooms&port=5000&codec=null
source = librespot:///bin/librespot?name=spotify-all-rooms&devicename=Snapcast - All Rooms&codec=null
# Input only meta source for all rooms
source = meta:///upnp-all-rooms/airplay-all-rooms/spotify-all-rooms?name=all-rooms&codec=null
# Meta sources for individual rooms
source = meta:///upnp-bedroom/airplay-bedroom/spotify-bedroom/all-rooms?name=Bedroom
source = meta:///upnp-living-room/airplay-living-room/spotify-living-room/all-rooms?name=Living Room

                  Pretty much it's Input-only stream w/ script -> Input-only meta stream -> Meta stream
                  And here's the error
                  ERROR: Fatal error: protocol.data_received() call failed.
protocol: <snapcast.control.protocol.SnapcastProtocol object at 0x7f57e6fa0e50>
transport: <_SelectorSocketTransport fd=6 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/usr/lib/python3.11/asyncio/selector_events.py", line 1009, in _read_ready__data_received
self._protocol.data_received(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 54, in data_received
self.handle_data(item)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 61, in handle_data
self.handle_notification(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 73, in handle_notification
self._callbacks.get(data.get('method'))(data.get('params'))
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/server.py", line 420, in _on_stream_properties
stream = self._streams[data.get('id')]
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
KeyError: 'all-rooms'

                  I dumped the contents of self._streams and the incoming data. It appears Snapcast is generating a properties update for the 2nd meta stream which the library is not tracking.
                  Contents of self._streams
                  {'Bedroom': Snapstream (Bedroom), 'Living Room': Snapstream (Living Room)}

                  Incoming data
                  {'id': 'all-rooms', 'properties': {'canControl': False, 'canGoNext': False, 'canGoPrevious': False, 'canPause': False, 'canPlay': False, 'canSeek': False, 'loopStatus': 'none', 'mute': False, 'playbackStatus': 'playing', 'position': 0.0, 'rate': 1.0, 'shuffle': False, 'volume': 100}}

                  I don't know if Snapcast shouldn't be generating the update for this meta stream, but at least this library can add a check for the ID.
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    No labels
                    No labels
                    Projects
                    No projects
                      Milestone
                      No milestone
                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                      Skip to content
                      KeyError when meta stream gets property update #74
                      Open
                      Open
                      KeyError when meta stream gets property update#74
                      Description
                      @mill1000
                      mill1000
                      opened on Oct 10, 2024
                      In my Snapcast setup I have multiple input-only streams that get grouped within a meta stream. This meta stream also get grouped into another meta stream.
                      Some of the input-only streams have a control script to provide stream properties & metadata. When a properties update is received a KeyError is thrown from _on_stream_properties.
                      Here's a simplified setup
                      # Input only streams
source = pipe:///streams/gmrender-resurrect-all-rooms?name=upnp-all-rooms&codec=null&controlscript=/usr/local/bin/snapcast-upnp
source = airplay:////usr/local/bin/shairport-sync?name=airplay-all-rooms&devicename=Snapcast - All Rooms&port=5000&codec=null
source = librespot:///bin/librespot?name=spotify-all-rooms&devicename=Snapcast - All Rooms&codec=null
# Input only meta source for all rooms
source = meta:///upnp-all-rooms/airplay-all-rooms/spotify-all-rooms?name=all-rooms&codec=null
# Meta sources for individual rooms
source = meta:///upnp-bedroom/airplay-bedroom/spotify-bedroom/all-rooms?name=Bedroom
source = meta:///upnp-living-room/airplay-living-room/spotify-living-room/all-rooms?name=Living Room

                      Pretty much it's Input-only stream w/ script -> Input-only meta stream -> Meta stream
                      And here's the error
                      ERROR: Fatal error: protocol.data_received() call failed.
protocol: <snapcast.control.protocol.SnapcastProtocol object at 0x7f57e6fa0e50>
transport: <_SelectorSocketTransport fd=6 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/usr/lib/python3.11/asyncio/selector_events.py", line 1009, in _read_ready__data_received
self._protocol.data_received(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 54, in data_received
self.handle_data(item)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 61, in handle_data
self.handle_notification(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 73, in handle_notification
self._callbacks.get(data.get('method'))(data.get('params'))
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/server.py", line 420, in _on_stream_properties
stream = self._streams[data.get('id')]
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
KeyError: 'all-rooms'

                      I dumped the contents of self._streams and the incoming data. It appears Snapcast is generating a properties update for the 2nd meta stream which the library is not tracking.
                      Contents of self._streams
                      {'Bedroom': Snapstream (Bedroom), 'Living Room': Snapstream (Living Room)}

                      Incoming data
                      {'id': 'all-rooms', 'properties': {'canControl': False, 'canGoNext': False, 'canGoPrevious': False, 'canPause': False, 'canPlay': False, 'canSeek': False, 'loopStatus': 'none', 'mute': False, 'playbackStatus': 'playing', 'position': 0.0, 'rate': 1.0, 'shuffle': False, 'volume': 100}}

                      I don't know if Snapcast shouldn't be generating the update for this meta stream, but at least this library can add a check for the ID.
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        No labels
                        No labels
                        Projects
                        No projects
                          Milestone
                          No milestone
                          Relationships
                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                          Skip to content
                          KeyError when meta stream gets property update #74
                          Open
                          Open
                          KeyError when meta stream gets property update#74
                          Description
                          @mill1000
                          mill1000
                          opened on Oct 10, 2024
                          In my Snapcast setup I have multiple input-only streams that get grouped within a meta stream. This meta stream also get grouped into another meta stream.
                          Some of the input-only streams have a control script to provide stream properties & metadata. When a properties update is received a KeyError is thrown from _on_stream_properties.
                          Here's a simplified setup
                          # Input only streams
source = pipe:///streams/gmrender-resurrect-all-rooms?name=upnp-all-rooms&codec=null&controlscript=/usr/local/bin/snapcast-upnp
source = airplay:////usr/local/bin/shairport-sync?name=airplay-all-rooms&devicename=Snapcast - All Rooms&port=5000&codec=null
source = librespot:///bin/librespot?name=spotify-all-rooms&devicename=Snapcast - All Rooms&codec=null
# Input only meta source for all rooms
source = meta:///upnp-all-rooms/airplay-all-rooms/spotify-all-rooms?name=all-rooms&codec=null
# Meta sources for individual rooms
source = meta:///upnp-bedroom/airplay-bedroom/spotify-bedroom/all-rooms?name=Bedroom
source = meta:///upnp-living-room/airplay-living-room/spotify-living-room/all-rooms?name=Living Room

                          Pretty much it's Input-only stream w/ script -> Input-only meta stream -> Meta stream
                          And here's the error
                          ERROR: Fatal error: protocol.data_received() call failed.
protocol: <snapcast.control.protocol.SnapcastProtocol object at 0x7f57e6fa0e50>
transport: <_SelectorSocketTransport fd=6 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/usr/lib/python3.11/asyncio/selector_events.py", line 1009, in _read_ready__data_received
self._protocol.data_received(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 54, in data_received
self.handle_data(item)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 61, in handle_data
self.handle_notification(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 73, in handle_notification
self._callbacks.get(data.get('method'))(data.get('params'))
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/server.py", line 420, in _on_stream_properties
stream = self._streams[data.get('id')]
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
KeyError: 'all-rooms'

                          I dumped the contents of self._streams and the incoming data. It appears Snapcast is generating a properties update for the 2nd meta stream which the library is not tracking.
                          Contents of self._streams
                          {'Bedroom': Snapstream (Bedroom), 'Living Room': Snapstream (Living Room)}

                          Incoming data
                          {'id': 'all-rooms', 'properties': {'canControl': False, 'canGoNext': False, 'canGoPrevious': False, 'canPause': False, 'canPlay': False, 'canSeek': False, 'loopStatus': 'none', 'mute': False, 'playbackStatus': 'playing', 'position': 0.0, 'rate': 1.0, 'shuffle': False, 'volume': 100}}

                          I don't know if Snapcast shouldn't be generating the update for this meta stream, but at least this library can add a check for the ID.
                          Metadata
                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            No labels
                            No labels
                            Projects
                            No projects
                              Milestone
                              No milestone
                              Relationships
                              None yet
                              Development
                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

                              Skip to content
                              KeyError when meta stream gets property update #74
                              Open
                              Open
                              KeyError when meta stream gets property update#74
                              Description
                              @mill1000
                              mill1000
                              opened on Oct 10, 2024
                              In my Snapcast setup I have multiple input-only streams that get grouped within a meta stream. This meta stream also get grouped into another meta stream.
                              Some of the input-only streams have a control script to provide stream properties & metadata. When a properties update is received a KeyError is thrown from _on_stream_properties.
                              Here's a simplified setup
                              # Input only streams
source = pipe:///streams/gmrender-resurrect-all-rooms?name=upnp-all-rooms&codec=null&controlscript=/usr/local/bin/snapcast-upnp
source = airplay:////usr/local/bin/shairport-sync?name=airplay-all-rooms&devicename=Snapcast - All Rooms&port=5000&codec=null
source = librespot:///bin/librespot?name=spotify-all-rooms&devicename=Snapcast - All Rooms&codec=null
# Input only meta source for all rooms
source = meta:///upnp-all-rooms/airplay-all-rooms/spotify-all-rooms?name=all-rooms&codec=null
# Meta sources for individual rooms
source = meta:///upnp-bedroom/airplay-bedroom/spotify-bedroom/all-rooms?name=Bedroom
source = meta:///upnp-living-room/airplay-living-room/spotify-living-room/all-rooms?name=Living Room

                              Pretty much it's Input-only stream w/ script -> Input-only meta stream -> Meta stream
                              And here's the error
                              ERROR: Fatal error: protocol.data_received() call failed.
protocol: <snapcast.control.protocol.SnapcastProtocol object at 0x7f57e6fa0e50>
transport: <_SelectorSocketTransport fd=6 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/usr/lib/python3.11/asyncio/selector_events.py", line 1009, in _read_ready__data_received
self._protocol.data_received(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 54, in data_received
self.handle_data(item)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 61, in handle_data
self.handle_notification(data)
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/protocol.py", line 73, in handle_notification
self._callbacks.get(data.get('method'))(data.get('params'))
File "/home/wyse/.local/lib/python3.11/site-packages/snapcast/control/server.py", line 420, in _on_stream_properties
stream = self._streams[data.get('id')]
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
KeyError: 'all-rooms'

                              I dumped the contents of self._streams and the incoming data. It appears Snapcast is generating a properties update for the 2nd meta stream which the library is not tracking.
                              Contents of self._streams
                              {'Bedroom': Snapstream (Bedroom), 'Living Room': Snapstream (Living Room)}

                              Incoming data
                              {'id': 'all-rooms', 'properties': {'canControl': False, 'canGoNext': False, 'canGoPrevious': False, 'canPause': False, 'canPlay': False, 'canSeek': False, 'loopStatus': 'none', 'mute': False, 'playbackStatus': 'playing', 'position': 0.0, 'rate': 1.0, 'shuffle': False, 'volume': 100}}

                              I don't know if Snapcast shouldn't be generating the update for this meta stream, but at least this library can add a check for the ID.
                              Metadata
                              Metadata
                              Assignees
                              No one assigned
                                Labels
                                No labels
                                No labels
                                Projects
                                No projects
                                  Milestone
                                  No milestone
                                  Relationships
                                  None yet
                                  Development
                                  No branches or pull requests
                                  Issue actions