Add custom Capacitor plugin-socket for raw TCP support #4471
Conversation
WalkthroughAdds a new Capacitor Socket plugin: Android native implementation providing TCP connect/send/receive/disconnect/getStatus with lifecycle cleanup and evented reads; a web shim returning no-op responses; TypeScript definitions and package metadata; and registers the Android plugin in MainActivity.onCreate. Changes
Sequence Diagram(s)sequenceDiagram
participant App
participant SocketPluginAndroid as SocketPlugin (Android)
participant TCPServer as TCP Server
App->>SocketPluginAndroid: connect({ ip, port })
Note right of SocketPluginAndroid `#dff0d8`: validate inputs, set CONNECTING
SocketPluginAndroid->>TCPServer: open TCP socket (async, timeout)
alt success
SocketPluginAndroid-->>App: { success: true }
Note right of SocketPluginAndroid `#dff0d8`: state -> CONNECTED, start reader thread
else fail
SocketPluginAndroid-->>App: { success: false, error }
Note right of SocketPluginAndroid `#f2dede`: state -> ERROR, cleanup
end
App->>SocketPluginAndroid: send({ data })
Note right of SocketPluginAndroid `#dff0d8`: writerLock, write newline-delimited, flush
SocketPluginAndroid-->>App: { success: true/false }
TCPServer-->>SocketPluginAndroid: data line
SocketPluginAndroid-->>App: emit event/dataReceived
App->>SocketPluginAndroid: getStatus()
SocketPluginAndroid-->>App: { connected: boolean, state: string }
App->>SocketPluginAndroid: disconnect()
Note right of SocketPluginAndroid `#dff0d8`: set DISCONNECTING, close resources
SocketPluginAndroid-->>App: { success: true }
Note right of SocketPluginAndroid `#dff0d8`: state -> DISCONNECTED
sequenceDiagram
participant App
participant SocketPluginWeb as SocketPlugin (Web)
App->>SocketPluginWeb: connect({ ip, port })
SocketPluginWeb-->>App: { success: false }
App->>SocketPluginWeb: send({ data })
SocketPluginWeb-->>App: { success: false }
App->>SocketPluginWeb: receive()
SocketPluginWeb-->>App: { data: "" }
App->>SocketPluginWeb: getStatus()
SocketPluginWeb-->>App: { connected: false, state: "disconnected" }
App->>SocketPluginWeb: disconnect()
SocketPluginWeb-->>App: { success: false }
Estimated code review effort🎯 4 (Complex) | ⏱️ ~45 minutes
Pre-merge checks and finishing touches❌ Failed checks (2 warnings)
✅ Passed checks (1 passed)
✨ Finishing touches
🧪 Generate unit tests (beta)
Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
There was a problem hiding this comment.
Actionable comments posted: 7
🧹 Nitpick comments (6)
capacitor-plugin-socket/src/definitions.ts (2)
1-6: Consider supporting binary data payloads.
Raw TCP sockets often exchange binary data. Currentlysend/receiveusestringfordata. You may want to useArrayBufferorUint8Array(or overloads) in the interface to handle binary payloads.
1-6: Add JSDoc comments for improved DX.
Annotating each method (connect,send,receive,disconnect) with JSDoc will surface signatures and parameter docs in editors.capacitor-plugin-socket/src/index.ts (2)
1-1: Specify the plugin interface generic.
Use the generic onregisterPluginfor full TypeScript type inference:const SocketPlugin = registerPlugin<SocketPlugin>('SocketPlugin', { … });
3-5: Add explicit iOS fallback.
Currently onlywebis defined. To avoid runtime errors on unsupported platforms, add aniosstub to import your web implementation:const SocketPlugin = registerPlugin<SocketPlugin>('SocketPlugin', { web: () => import('./web').then(m => new m.SocketPluginWeb()), ios: () => import('./web').then(m => new m.SocketPluginWeb()), });capacitor-plugin-socket/src/web.ts (1)
5-23: Use the WebPlugin’s unimplemented helper.
Rather thanconsole.log+ default returns, callthis.unimplemented()for a standardized unimplemented error:async connect(...) { - console.log('Web implementation does not support raw TCP sockets.', options); - return { success: false }; + return this.unimplemented('Raw TCP sockets are not supported on web.'); }Apply similarly for
send,receive, anddisconnect.android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
1-72: Add thread safety and consider using AsyncTask or ExecutorService.The current implementation performs network operations on the main thread and lacks thread safety:
- Network operations on the main UI thread can cause ANR issues
- No proper handling of concurrent method calls
- Consider using background threads for socket operations
While Capacitor's
executeAsynchelps with background execution, you may want to implement a more robust threading strategy. Consider:
- Using Android's ExecutorService for managing a thread pool
- Implementing proper synchronization for shared resources
- Adding cancellation support for long-running operations
Additionally, consider implementing timeout handling for all socket operations and add proper documentation for users of this plugin, explaining:
- When to use SSL vs. raw sockets
- How to handle timeouts and connection failures
- Best practices for error handling
🧰 Tools
🪛 ast-grep (0.31.1)
[info] 23-23: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (6)
android/app/src/main/java/betaflight/configurator/MainActivity.java(1 hunks)android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)capacitor-plugin-socket/package.json(1 hunks)capacitor-plugin-socket/src/definitions.ts(1 hunks)capacitor-plugin-socket/src/index.ts(1 hunks)capacitor-plugin-socket/src/web.ts(1 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (4)
android/app/src/main/java/betaflight/configurator/MainActivity.java (1)
capacitor-plugin-socket/src/definitions.ts (1)
SocketPlugin(1-6)
capacitor-plugin-socket/src/index.ts (1)
capacitor-plugin-socket/src/definitions.ts (1)
SocketPlugin(1-6)
capacitor-plugin-socket/src/web.ts (1)
capacitor-plugin-socket/src/definitions.ts (1)
SocketPlugin(1-6)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
capacitor-plugin-socket/src/definitions.ts (1)
SocketPlugin(1-6)capacitor-plugin-socket/src/web.ts (4)
connect(5-8)send(10-13)receive(15-18)disconnect(20-23)
🪛 ast-grep (0.31.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 23-23: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
android/app/src/main/java/betaflight/configurator/MainActivity.java
Outdated
Show resolved
Hide resolved
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
haslinghuis
force-pushed
the
capacitor-plugin-socket
branch
from
2881743 to
507f32c
Compare
There was a problem hiding this comment.
Actionable comments posted: 0
♻️ Duplicate comments (7)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (7)
19-33: Improve security and robustness inconnectmethod.The connect method has several issues that could lead to application crashes or security vulnerabilities:
- No input validation
- No check for existing connections
- Using an unencrypted socket (security concern)
- Operations run on the main thread (may freeze UI)
- No socket timeout
- No resource cleanup on failure
🧰 Tools
🪛 ast-grep (0.31.1)
[info] 23-23: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
35-47: Add state validation to send method.The send method should check if there's an active connection before attempting to write data. It also runs on the main thread and lacks input validation.
49-59: Potential blocking operation in receive method.The
readLine()method blocks indefinitely until data with a line terminator is available or the connection is closed, which can cause the app to freeze.
61-72: Improve resource cleanup in disconnect method.The disconnect method only closes the socket but doesn't properly clean up all resources:
- Reader and writer aren't closed
- Class fields aren't reset
- No state tracking
1-72: 🛠️ Refactor suggestionImplement a helper method for resource cleanup.
The class needs a helper method for closing resources consistently across all methods to avoid resource leaks and maintain proper state.
@PluginMethod public void disconnect(PluginCall call) { try { - if (socket != null) socket.close(); + closeResources(); + isConnected = false; JSObject ret = new JSObject(); ret.put("success", true); call.resolve(ret); } catch (Exception e) { call.reject("Disconnect failed: " + e.getMessage()); } } +/** + * Helper method to close all resources and clean up state + */ +private void closeResources() { + try { + if (reader != null) { + reader.close(); + reader = null; + } + if (writer != null) { + writer.close(); + writer = null; + } + if (socket != null) { + socket.close(); + socket = null; + } + } catch (IOException e) { + // Log but continue cleanup + Log.e("SocketPlugin", "Error closing resources", e); + } +}🧰 Tools
🪛 ast-grep (0.31.1)
[info] 23-23: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
13-18: 🛠️ Refactor suggestionAdd connection state tracking.
The class lacks state management to track when a socket is connected. This is important for preventing operations on closed sockets and proper cleanup.
@CapacitorPlugin(name = "SocketPlugin") public class SocketPlugin extends Plugin { private Socket socket; private BufferedReader reader; private BufferedWriter writer; + private boolean isConnected = false;
51-52: 🛠️ Refactor suggestionMove network I/O off the main thread.
Reading from the socket on the main thread can cause UI freezes (ANR - Application Not Responding). Move this operation to a background thread.
@PluginMethod public void receive(PluginCall call) { + // Verify connection state first + if (socket == null || !isConnected) { + call.reject("Not connected to any server"); + return; + } + + // Use executeAsync to move this work off the main thread + executeAsync(() -> { try { String data = reader.readLine(); + if (data == null) { + // Connection closed by server + closeResources(); + isConnected = false; + call.reject("Connection closed by server"); + return; + } JSObject ret = new JSObject(); ret.put("data", data); call.resolve(ret); } catch (Exception e) { + closeResources(); + isConnected = false; call.reject("Receive failed: " + e.getMessage()); } + }); }
🧹 Nitpick comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
1-12: Remove unused import and add class documentation.The
android.util.Logimport on line 3 is not used in the code. Also, the class would benefit from proper documentation explaining its purpose and usage.package betaflight.configurator.plugin; -import android.util.Log; import com.getcapacitor.JSObject; import com.getcapacitor.Plugin; import com.getcapacitor.PluginCall; import com.getcapacitor.annotation.CapacitorPlugin; import java.io.*; import java.net.Socket; +/** + * Capacitor plugin that provides raw TCP socket functionality. + * Implements methods to connect, send, receive, and disconnect from TCP servers. + */
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (6)
android/app/src/main/java/betaflight/configurator/MainActivity.java(1 hunks)android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)capacitor-plugin-socket/package.json(1 hunks)capacitor-plugin-socket/src/definitions.ts(1 hunks)capacitor-plugin-socket/src/index.ts(1 hunks)capacitor-plugin-socket/src/web.ts(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (5)
- android/app/src/main/java/betaflight/configurator/MainActivity.java
- capacitor-plugin-socket/src/web.ts
- capacitor-plugin-socket/package.json
- capacitor-plugin-socket/src/index.ts
- capacitor-plugin-socket/src/definitions.ts
🧰 Additional context used
🧬 Code Graph Analysis (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
capacitor-plugin-socket/src/definitions.ts (1)
SocketPlugin(1-6)capacitor-plugin-socket/src/web.ts (4)
connect(5-8)send(10-13)receive(15-18)disconnect(20-23)
🪛 ast-grep (0.31.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 23-23: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
23-23:❓ Verification inconclusive
Consider using encrypted sockets for sensitive data.
The current implementation uses unencrypted sockets which could expose transmitted data to network eavesdropping. For sensitive information, consider using SSL/TLS sockets.
🏁 Script executed:
#!/bin/bash # Check if the application is transmitting sensitive information through this socket rg -i "password|credential|token|secret|key" --type java -C 3 android/app/src/main | grep -i "socket"Length of output: 101
🏁 Script executed:
#!/bin/bash # Inspect SocketPlugin.java for socket initialization patterns echo "=== new Socket usage ===" grep -R "new Socket" -n android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java || echo "none found" echo "=== SSLSocket usage ===" grep -R "SSLSocket" -n android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java || echo "none found" echo "=== SSLContext usage ===" grep -R "SSLContext" -n android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java || echo "none found"Length of output: 580
Evaluate encryption for SocketPlugin.java
The
SocketPlugincurrently opens an unencrypted TCP socket (java.net.Socket) on line 24 without any SSL/TLS layers. If this channel ever carries sensitive data (credentials, tokens, personal info), it would be exposed to eavesdropping.• File:
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
– Line 24:socket = new Socket(ip, port);
– No use ofSSLSocketorSSLContextdetectedPlease verify whether any sensitive information is sent over this socket. If so, replace
Socketwith anSSLSocket(or configure anSSLContext) to enable TLS encryption.🧰 Tools
🪛 ast-grep (0.31.1)
[info] 23-23: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
haslinghuis
force-pushed
the
capacitor-plugin-socket
branch
from
1864ae5 to
b94e7a6
Compare
There was a problem hiding this comment.
Caution
Inline review comments failed to post. This is likely due to GitHub's limits when posting large numbers of comments. If you are seeing this consistently it is likely a permissions issue. Please check "Moderation" -> "Code review limits" under your organization settings.
Actionable comments posted: 5
🧹 Nitpick comments (3)
capacitor-plugin-socket/package.json (3)
12-13: Replace placeholder author information before publishing
The"author": "Your Name"placeholder will be published to the registry as-is.- "author": "Your Name", + "author": "Betaflight Configurator Team <[email protected]>",
1-20: Add repository / bugs URLs for better traceability
Users of the plugin will not see where to report issues or view the source."license": "MIT", + "repository": { + "type": "git", + "url": "https://github.com/betaflight-configurator/capacitor-plugin-socket" + }, + "bugs": { + "url": "https://github.com/betaflight-configurator/capacitor-plugin-socket/issues" + },
8-10: Include a clean step and ensure output goes todist/
tscwill emit files next to sources unlessoutDiris configured. Consider:"scripts": { - "build": "tsc" + "clean": "rimraf dist", + "build": "npm run clean && tsc -p tsconfig.json" },Also add
rimraftodevDependenciesif you adopt this.
🛑 Comments failed to post (5)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (5)
88-96: 🛠️ Refactor suggestion
receive()performs a blocking read on the UI thread
reader.readLine()can block indefinitely, risking ANR. Off-load to a background thread:executeAsync(() -> { try { String data = reader.readLine(); … } catch (…) { … } });Also verify connection state (
socket == null || !isConnected), and handlenullresults (server closed).🤖 Prompt for AI Agents
In android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java around lines 88 to 96, the receive() method performs a blocking read on the UI thread using reader.readLine(), which can cause ANR issues. To fix this, wrap the readLine() call and subsequent logic inside an executeAsync() runnable to offload it to a background thread. Additionally, before reading, check if the socket is null or not connected and reject the call early if so. Also handle the case where readLine() returns null, indicating the server closed the connection, and reject the call accordingly.
68-72: 🛠️ Refactor suggestion
send()still executed on main thread
Large writes or network stalls will freeze the UI. Similar toreceive(), wrap the write inexecuteAsync(() -> { … }).🤖 Prompt for AI Agents
In android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java around lines 68 to 72, the send() method is currently executed on the main thread, which can cause UI freezes during large writes or network delays. To fix this, wrap the send operation inside an executeAsync(() -> { ... }) block to run it asynchronously off the main thread, similar to how receive() is handled. This will prevent UI blocking during socket writes.
44-53:
⚠️ Potential issue
isConnectednever set totrueafter successful connect
Because the flag remainsfalse, everysend()call will immediately reject.writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())); + isConnected = true;📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.try { socket = new Socket(ip, port); socket.setSoTimeout(30_000); // 30s timeout reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())); isConnected = true; JSObject ret = new JSObject(); ret.put("success", true); call.resolve(ret); } catch (Exception e) { closeResources();🧰 Tools
🪛 ast-grep (0.31.1)
[info] 44-44: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
🤖 Prompt for AI Agents
In android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java around lines 44 to 53, the isConnected flag is not set to true after a successful socket connection, causing all send() calls to reject immediately. To fix this, set isConnected to true right after the socket and streams are successfully initialized and before resolving the call, ensuring the flag accurately reflects the connection state.
24-35: 🛠️ Refactor suggestion
Potential NPE from auto-unboxing
Integerport value
call.getInt("port")returnsInteger; if absent it becomesnulland unboxing intointthrows.- int port = call.getInt("port"); + Integer port = call.getInt("port");Then adjust subsequent comparisons (
port == null || port < 1 …).📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.String ip = call.getString("ip"); - int port = call.getInt("port"); + Integer port = call.getInt("port"); // Validate inputs if (ip == null || ip.isEmpty()) { call.reject("IP address is required"); return; } if (port <= 0 || port > 65535) { call.reject("Invalid port number"); return; }🤖 Prompt for AI Agents
In android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java around lines 24 to 35, the code uses call.getInt("port") which returns an Integer that may be null, causing a NullPointerException when auto-unboxed to int. Change the port variable to Integer and check if it is null before performing numeric comparisons. Update the validation condition to verify port is not null and within the valid range before proceeding.
129-133:
⚠️ Potential issueMissing
Logimport – compilation will fail
Log.eis referenced butandroid.util.Logis not imported.+import android.util.Log;📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.// at the top of android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java package betaflight.configurator.plugin; import android.util.Log; import com.getcapacitor.JSObject; import com.getcapacitor.Plugin; import com.getcapacitor.PluginCall; import com.getcapacitor.annotation.CapacitorPlugin; // … rest of imports and class definition🤖 Prompt for AI Agents
In android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java around lines 129 to 133, the code uses Log.e for error logging but does not import android.util.Log, causing a compilation error. Add the import statement for android.util.Log at the top of the file with the other imports to fix this issue.
There was a problem hiding this comment.
Actionable comments posted: 3
♻️ Duplicate comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
44-56: 🛠️ Refactor suggestionBlocking network I/O is still executed on the UI thread
new Socket(...)and stream construction are potentially slow and will freeze the UI, causing ANRs on older devices.
A previous review already pointed this out; consider wrapping the whole block inexecuteAsync(() -> { … }).🧰 Tools
🪛 ast-grep (0.31.1)
[info] 44-44: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
87-97:⚠️ Potential issue
receiveis blocking & lacks state checksAll earlier concerns remain:
- No
socket != null && isConnectedcheck.readLine()blocks indefinitely on the UI thread.data == null(server closed) is not handled.Please apply the earlier suggestion: guard state, use
executeAsync, and handle EOF.
🧹 Nitpick comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
112-134: UI-thread hopping for a simple log is unnecessary &getContext()may not exist
getContext().getActivity()is not part of the publicPluginAPI; usegetActivity()directly, or just:- // Log but continue cleanup - getContext().getActivity().runOnUiThread(() -> - Log.e("SocketPlugin", "Error closing resources", e)); + // Log but continue cleanup + Log.e("SocketPlugin", "Error closing resources", e);This also eliminates the need to obtain the main-thread handler.
44-46: Consider encrypted transport (SSL/TLS) when handling credentials or PIIStatic analysis flags the clear-text
Socket; if the plugin will ever carry sensitive data, plan anSSLSocketoption or document the security trade-offs.🧰 Tools
🪛 ast-grep (0.31.1)
[info] 44-44: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (6)
android/app/src/main/java/betaflight/configurator/MainActivity.java(1 hunks)android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)capacitor-plugin-socket/package.json(1 hunks)capacitor-plugin-socket/src/definitions.ts(1 hunks)capacitor-plugin-socket/src/index.ts(1 hunks)capacitor-plugin-socket/src/web.ts(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (5)
- android/app/src/main/java/betaflight/configurator/MainActivity.java
- capacitor-plugin-socket/src/definitions.ts
- capacitor-plugin-socket/src/web.ts
- capacitor-plugin-socket/src/index.ts
- capacitor-plugin-socket/package.json
🧰 Additional context used
🪛 ast-grep (0.31.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 44-44: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Outdated
Show resolved
Hide resolved
haslinghuis
force-pushed
the
capacitor-plugin-socket
branch
2 times, most recently
from
84f4673 to
acfa06d
Compare
There was a problem hiding this comment.
Caution
Inline review comments failed to post. This is likely due to GitHub's limits when posting large numbers of comments. If you are seeing this consistently it is likely a permissions issue. Please check "Moderation" -> "Code review limits" under your organization settings.
Actionable comments posted: 2
♻️ Duplicate comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
38-56: 🛠️ Refactor suggestion
⚠️ Potential issue
connectnever setsisConnectedand still blocks the main thread
isConnectedis never flipped totrue; every latersend/receivecall will be rejected.- All network I/O is executed on the UI thread → risk of ANR.
- try { - socket = new Socket(ip, port); + executeAsync(() -> { + try { + socket = new Socket(ip, port); socket.setSoTimeout(30_000); // 30 s timeout reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())); + isConnected = true; // 🟢 mark connected JSObject ret = new JSObject(); ret.put("success", true); - call.resolve(ret); - } catch (Exception e) { - closeResources(); - call.reject("Connection failed: " + e.getMessage()); - } + call.resolve(ret); + } catch (Exception e) { + closeResources(); + call.reject("Connection failed: " + e.getMessage()); + } + });🧰 Tools
🪛 ast-grep (0.31.1)
[info] 44-44: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
58-85: 🛠️ Refactor suggestion
sendstill runs on UI thread and lacks framing / synchronizationLarge writes can stall the UI and concurrent calls may corrupt the stream.
Suggested adjustments:
- Wrap the logic in
executeAsync.synchronized(writer)to prevent concurrent writes.- Append a newline or convert to bytes if the protocol is line-oriented/binary.
- try { - writer.write(data); - writer.flush(); + executeAsync(() -> { + try { + synchronized (writer) { + writer.write(data); + writer.flush(); + } + JSObject ret = new JSObject(); + ret.put("success", true); + call.resolve(ret); + } catch (Exception e) { + closeResources(); + isConnected = false; + call.reject("Send failed: " + e.getMessage()); + } + }); - JSObject ret = new JSObject(); - ret.put("success", true); - call.resolve(ret); - } catch (Exception e) { - closeResources(); - isConnected = false; - call.reject("Send failed: " + e.getMessage()); - }
🧹 Nitpick comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
116-134: Potential NPE whengetActivity()is null & missing error logging strategy
getContext().getActivity()may returnnullwhen the plugin is used without an Activity (e.g. in background). Consider usingLogdirectly or gating the UI-thread call:if (getContext() != null && getContext().getActivity() != null) { getContext().getActivity().runOnUiThread( () -> Log.e("SocketPlugin", "Error closing resources", e)); } else { Log.e("SocketPlugin", "Error closing resources", e); }Also consider switching wildcard
java.io.*import to explicit classes for clarity.
44-46: Unencrypted socket — evaluate need for TLSStatic analysis flags clear-text transmission (
new Socket(ip, port)). If the data is sensitive, migrate toSSLSocketFactoryor document why plain TCP is acceptable.🧰 Tools
🪛 ast-grep (0.31.1)
[info] 44-44: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
🛑 Comments failed to post (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
87-97: 🛠️ Refactor suggestion
⚠️ Potential issue
receivecan freeze the UI and lacks connection/state checks
readLine()blocks indefinitely on the main thread and there is no guard for disconnected sockets; on failure resources stay open.Key fixes:
- Check
socket != null && !socket.isClosed() && isConnected.- Run the blocking read inside
executeAsync.- Handle
nullreturn (peer closed) and callcloseResources().🤖 Prompt for AI Agents
In android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java around lines 87 to 97, the receive method blocks the main thread by calling readLine() directly and does not check socket connection state, risking UI freeze and resource leaks. Fix this by first verifying socket is not null, not closed, and connected before reading. Move the blocking readLine() call inside an executeAsync block to avoid blocking the UI thread. Also, handle the case where readLine() returns null (indicating the peer closed the connection) by calling closeResources() to clean up properly.
3-10:
⚠️ Potential issueMissing imports lead to compilation failure
@PluginMethodandLogare referenced but not imported, so the file will not compile.import com.getcapacitor.annotation.CapacitorPlugin; +import com.getcapacitor.annotation.PluginMethod; // annotation in use + +import android.util.Log; // used in closeResources📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.import com.getcapacitor.JSObject; import com.getcapacitor.Plugin; import com.getcapacitor.PluginCall; import com.getcapacitor.annotation.CapacitorPlugin; import com.getcapacitor.annotation.PluginMethod; import android.util.Log; import java.io.*; import java.net.Socket;🤖 Prompt for AI Agents
In android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java around lines 3 to 10, the imports for @PluginMethod and Log are missing, causing compilation errors. Add the import statements for com.getcapacitor.PluginMethod and android.util.Log to resolve the missing references and ensure the file compiles successfully.
There was a problem hiding this comment.
Actionable comments posted: 4
🧹 Nitpick comments (6)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (6)
1-23: Refine imports and class‐level documentation
The wildcard importjava.io.*can be replaced with explicit imports (BufferedReader,InputStreamReader,BufferedWriter,OutputStreamWriter,IOException) to improve readability and avoid accidental namespace collisions. Also, consider movingimport android.util.Log;next to other Android imports for consistency.
24-34: Enhance parameter validation feedback
Current checks reject on missing/empty IP or invalid port, but don’t include the invalid value in the error. Consider:- if (ip == null || ip.isEmpty()) { - call.reject("IP address is required"); + if (ip == null || ip.isEmpty()) { + call.reject("IP address is required: received '" + ip + "'"); return; } - if (port <= 0 || port > 65535) { - call.reject("Invalid port number"); + if (port <= 0 || port > 65535) { + call.reject("Invalid port number: " + port); return; }
40-47: Prevent double‐registration race
The duplicate‐connection guard checkssocket.isClosed(), but doesn’t account for a connection in progress. Consider synchronizing access tosocketor using an explicit lock to avoid a race condition when twoconnectcalls happen in quick succession.🧰 Tools
🪛 ast-grep (0.31.1)
[info] 46-46: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
46-55: Handle encrypted connections or document trust boundary
Static analysis flagged an unencryptedSocket. If this plugin may transport sensitive data, either switch toSSLSocketFactory(SSLSocket) or clearly document that it’s intended for plain‐text debug use only.🧰 Tools
🪛 ast-grep (0.31.1)
[info] 46-46: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
61-69: Early‐return input validation is good—align formatting
The@PluginMethodannotation onsendis flush‐left; indent it to match other methods for consistency.
115-137: Simplify resource cleanup logging
You post theLog.ecall back on the UI thread; logging can occur on the current thread safely. You can simplify:- getContext().getActivity().runOnUiThread(() -> - Log.e("SocketPlugin", "Error closing resources", e)); + Log.e("SocketPlugin", "Error closing resources", e);This avoids unnecessary UI thread marshaling.
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (3)
android/app/src/main/java/betaflight/configurator/MainActivity.java(1 hunks)android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)capacitor-plugin-socket/package.json(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (2)
- android/app/src/main/java/betaflight/configurator/MainActivity.java
- capacitor-plugin-socket/package.json
🧰 Additional context used
🪛 ast-grep (0.31.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 46-46: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
102-113: Safe disconnect & state reset is correct
Thedisconnectmethod cleanly closes resources and flipsisConnected. Good use of the helper.
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Outdated
Show resolved
Hide resolved
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Outdated
Show resolved
Hide resolved
There was a problem hiding this comment.
Actionable comments posted: 1
🧹 Nitpick comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
100-115: Consider non-blocking read alternatives.The
readLine()call will block indefinitely if no newline character is received, which could lead to resource leaks if the connection stays idle.Consider implementing a timeout mechanism or alternative read approach:
getBridge().getExecutor().execute(() -> { try { - String data = reader.readLine(); + // Option 1: Use socket timeout already set + String data = reader.readLine(); + if (data == null) { + call.reject("Connection closed by server"); + closeResources(); + isConnected = false; + return; + } // Option 2: Alternative - read with fixed buffer size // char[] buffer = new char[8192]; // int length = reader.read(buffer, 0, buffer.length); // String data = new String(buffer, 0, length); JSObject ret = new JSObject(); ret.put("data", data); call.resolve(ret); } catch (Exception e) { closeResources(); isConnected = false; call.reject("Receive failed: " + e.getMessage()); } });
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🪛 ast-grep (0.31.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 48-48: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: deploy
🔇 Additional comments (6)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (6)
1-16: Well-structured package and imports with clear documentation.The package structure and imports are appropriate for a Capacitor plugin. The class documentation clearly explains the plugin's purpose, which is good practice.
17-22: Good class structure with proper field initialization.The class is correctly annotated with
@CapacitorPluginand extendsPluginas required. The instance variables for socket, reader, writer, and connection state are appropriately defined.
64-98: Well-designed send method with thread safety.The send method includes proper input validation, connection state checking, and runs write operations on a background thread. The synchronization on the writer prevents concurrent modification issues, and appending a newline for framing is appropriate for text-based protocols.
117-128: Well-implemented disconnect method.The disconnect method properly cleans up resources and maintains state consistency. The error handling is appropriate.
130-152: Well-designed resource cleanup helper.The
closeResourcesmethod thoroughly cleans up all open resources in the correct order, nullifies references, and handles exceptions properly. Using the UI thread for logging is appropriate.
24-62:❓ Verification inconclusive
Well-implemented connect method with security considerations.
The connect method has proper input validation, duplicate connection prevention, and runs network operations on a background thread. Setting a timeout is a good practice.
However, the socket communication is not encrypted, which could be a security concern if sensitive data is transmitted.
Consider using an
SSLSocketfor secure communication if sensitive data will be transmitted. If encryption is not required for your specific use case, add a comment explaining why.
🏁 Script executed:
#!/bin/bash # Check if this app handles sensitive data elsewhere that might require encryption rg -A 2 "password|token|credential|api_key" --type javaLength of output: 57
Verify encryption requirements for socket communication
No references to passwords, tokens, credentials, or API keys were found in the Java codebase. If you are confident that only non-sensitive data is sent over this socket, please add a comment in SocketPlugin.java explaining why unencrypted communication is acceptable. If there is any chance you’ll transmit credentials or other sensitive information in the future, switch to an SSLSocket to ensure data is encrypted in transit.
• File to update:
- android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (in the connect method)
🧰 Tools
🪛 ast-grep (0.31.1)
[info] 48-48: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
There was a problem hiding this comment.
Actionable comments posted: 2
♻️ Duplicate comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
110-118: 🛠️ Refactor suggestionInconsistent error handling in receive method.
Unlike the
sendmethod, thereceivemethod doesn't clean up resources or update connection state when an error occurs. This could lead to resource leaks and inconsistent state.} catch (Exception e) { + closeResources(); + isConnected = false; call.reject("Receive failed: " + e.getMessage()); }
🧹 Nitpick comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
3-3: Unused import that should be removed.The
android.util.Logimport is currently only used in thecloseResourcesmethod for error logging. If that's the only usage, it's fine to keep, but if you're not going to use it elsewhere, consider using a more Capacitor-specific logging approach.-import android.util.Log;
122-132: Consider running disconnect on a background thread.Although disconnect operations are typically quick, they can occasionally block. For consistency with other methods and to avoid potential UI freezes, consider running the disconnect operation on a background thread.
@PluginMethod public void disconnect(PluginCall call) { - try { - closeResources(); - isConnected = false; - JSObject ret = new JSObject(); - ret.put("success", true); - call.resolve(ret); - } catch (Exception e) { - call.reject("Disconnect failed: " + e.getMessage()); - } + getBridge().getExecutor().execute(() -> { + try { + closeResources(); + isConnected = false; + JSObject ret = new JSObject(); + ret.put("success", true); + call.resolve(ret); + } catch (Exception e) { + call.reject("Disconnect failed: " + e.getMessage()); + } + }); }
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🪛 ast-grep (0.31.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 48-48: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
1-157: Overall implementation looks solid with good error handling and background threading.The plugin follows Capacitor's conventions correctly and implements proper validation, background threading, and resource management. The synchronization for writes is a good practice to prevent race conditions. The code has addressed previous review comments effectively.
🧰 Tools
🪛 ast-grep (0.31.1)
[info] 48-48: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
46-61:❓ Verification inconclusive
Consider using encrypted socket for sensitive communications.
The current implementation uses a plain
Socketwhich transmits data in cleartext. If this plugin will handle sensitive information, consider usingSSLSocketinstead.
🏁 Script executed:
#!/bin/bash # Check if this app transmits sensitive information that would require encryption # Look for any existing SSL/TLS usage in the codebase rg -A 2 "SSLSocket|SSLSocketFactory|TLS|SSL" --type javaLength of output: 58
Evaluate data sensitivity and add TLS if needed
I ran a search across the Java code and didn’t find any existing use of SSLSocket, SSLSocketFactory, TLS, or SSL. The current implementation in
SocketPlugin.java(lines 46–61) uses a plainSocket, which sends everything in cleartext.If this plugin ever handles sensitive or security-critical data (e.g. credentials, configuration parameters that must be protected, or commands over untrusted networks), please switch to an encrypted socket (for example, via
SSLSocketFactory/SSLContext) and validate certificates to ensure confidentiality and integrity.• Affected file:
• android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (lines 46–61)🧰 Tools
🪛 ast-grep (0.31.1)
[info] 48-48: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Outdated
Show resolved
Hide resolved
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Outdated
Show resolved
Hide resolved
There was a problem hiding this comment.
Actionable comments posted: 1
♻️ Duplicate comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
122-124: 🛠️ Refactor suggestionEnsure resources are cleaned up on receive failure
Mirror thesenderror path by closing resources and resettingisConnectedwhenreceivethrows an exception:- } catch (Exception e) { - call.reject("Receive failed: " + e.getMessage()); - } + } catch (Exception e) { + closeResources(); + isConnected = false; + call.reject("Receive failed: " + e.getMessage()); + }
🧹 Nitpick comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
49-50: Consider supporting encrypted connections
The plugin currently uses an unencryptedSocketfor raw TCP. For production or sensitive data, consider allowing anSSLSocketviaSSLSocketFactory, or clearly document that this is intended only for trusted networks.
159-163: Use a static TAG constant for logging and guard against null activity
Extract the log tag intoprivate static final String TAG = "SocketPlugin"and checkgetContext()/getActivity()beforerunOnUiThreadto avoid possible NPEs:+ private static final String TAG = "SocketPlugin"; ... - getContext().getActivity().runOnUiThread(() -> - Log.e("SocketPlugin", "Error closing resources", e)); + if (getContext() != null && getContext().getActivity() != null) { + getContext().getActivity().runOnUiThread(() -> + Log.e(TAG, "Error closing resources", e)); + }
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🪛 ast-grep (0.31.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 48-48: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (4)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (4)
53-60: Verify thread‐safety of call.resolve()/call.reject()
Resolving or rejectingPluginCallinstances from a background executor may have threading implications within the Capacitor runtime. Confirm these calls are safe off the main thread, or alternatively dispatch them back to the UI thread:getBridge().getExecutor().execute(() -> { // ... call.resolve(ret); // or getActivity().runOnUiThread(() -> call.resolve(ret)); });
65-72: Solid input validation insend
The null-check fordatacorrectly guards against missing payloads before attempting to write. Nice work.
80-88: Good use of background thread and synchronization insend
Offloading the write and flush to the executor and synchronizing onwriterprevents UI blocking and race conditions.
129-136: Effective cleanup and state reset indisconnect
CallingcloseResources()and resetting theisConnectedflag ensures no sockets or streams linger after disconnect.
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Outdated
Show resolved
Hide resolved
There was a problem hiding this comment.
Actionable comments posted: 1
♻️ Duplicate comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
1-166: 💡 Verification agent🧩 Analysis chain
Consider using encrypted socket communication for sensitive data.
The current implementation uses an unencrypted Socket, which could allow traffic interception by malicious actors.
🌐 Web query:
When should I use SSLSocket instead of Socket in Java?💡 Result:
You should use SSLSocket instead of Socket in Java when transferring sensitive data over insecure communication channels. The SSLSocket class provides critical security protections that regular Socket does not offer, making it essential for secure communications.
Security Protections Provided by SSLSocket
SSLSocket extends the basic Socket class but adds several important security layers through protocols like Secure Sockets Layer (SSL) and Transport Layer Security (TLS)[1][2]. These additional protections include:
Integrity Protection: SSL prevents modification of messages by active attackers, ensuring that data cannot be tampered with during transmission[1].
Authentication: SSLSocket provides peer authentication capabilities. In most implementations, servers are always authenticated, and clients can be authenticated when requested by servers[1][4].
Confidentiality: SSLSocket encrypts data being sent between client and server, protecting sensitive information such as financial data or personal information from eavesdropping by passive wiretappers[1].
Specific Use Cases
You should use SSLSocket rather than Socket in the following scenarios:
When handling sensitive data: Any application that deals with personal information, financial data, login credentials, or other confidential information[1].
For secure Remote Method Invocation (RMI): When using Java RMI, which depends on object serialization, serialized data must be protected in transit[1].
When communicating across untrusted networks: Any data transmitted over public networks like the internet should use secure sockets[1][5].
For compliance requirements: Many regulatory standards require secure communications for sensitive data transfers[1].
Implementation Comparison
Implementing SSLSocket involves a few more steps than using a regular Socket, but the security benefits are substantial. A basic SSLSocket implementation requires:
- Initializing an SSLContext
- Creating an SSLSocketFactory from the context
- Using the factory to create an SSLSocket
- Starting the SSL handshake process[5][6]
For example, client-side implementation requires:
// Initialize SSLContext SSLContext sslContext = SSLContext.getInstance("TLS"); sslContext.init(null, trustManagerFactory.getTrustManagers(), null); // Create SSLSocket SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory(); SSLSocket sslSocket = (SSLSocket) sslSocketFactory.createSocket("localhost", 8443); // Start SSL handshake sslSocket.startHandshake();While SSLSocket adds security, it's worth noting that it may introduce some performance overhead compared to plain Socket connections[3]. However, this trade-off is necessary and justified when security is a requirement.
Citations:
- 1: https://wiki.sei.cmu.edu/confluence/display/java/MSC00-J.+Use+SSLSocket+rather+than+Socket+for+secure+data+exchange
- 2: https://docs.oracle.com/cd/E17802_01/j2se/j2se/1.5.0/jcp/beta1/apidiffs/javax/net/ssl/SSLSocket.html
- 3: https://forums.oracle.com/ords/apexds/post/ssl-socket-slowness-3572
- 4: https://learn.microsoft.com/en-us/dotnet/api/javax.net.ssl.sslsocket?view=net-android-34.0
- 5: https://qwiet.ai/appsec-resources/secure-your-java-applications-with-jsse-a-comprehensive-guide-to-java-secure-socket-extension/
- 6: https://snyk.io/blog/implementing-tls-in-java/
- 7: https://discourse.igniterealtime.org/t/rfe-upgrade-socket-to-starttls-with-custom-sslsocketfactory-as-alternative/82089
- 8: https://coderanch.com/t/739044/java/Socket-Programming-Java-TLS
- 9: https://matthewdavis111.com/java/poke-ssl-test-java-certs/
- 10: https://coderanch.com/t/479423/java/Plain-socket-SSL
Switch to SSLSocket for secure communications
The plugin currently opens a plain
Socket, which sends all data—including potentially sensitive payloads—in clear text over the network. To prevent eavesdropping, tampering, and meet common compliance requirements, you should use Java’sSSLSocket(TLS) instead:• File: android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
• Method: connect(PluginCall)Example refactor for
connect(...):- socket = new Socket(ip, port); + // Initialize SSL context (e.g. TLSv1.2+) + SSLContext sslContext = SSLContext.getInstance("TLS"); + sslContext.init(null, /* custom TrustManagers if needed */ null, null); + SSLSocketFactory factory = sslContext.getSocketFactory(); + SSLSocket sslSocket = (SSLSocket) factory.createSocket(ip, port); + sslSocket.startHandshake(); + socket = sslSocket;Next steps:
- Configure a TrustManager/KeyManager if you need custom certificates or mutual auth.
- Verify hostname on the server certificate to avoid MITM attacks.
- Adjust timeouts and cipher suites as required by your security policy.
🧰 Tools
🪛 ast-grep (0.31.1)
[info] 49-49: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
🧹 Nitpick comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
86-88: Consider making newline behavior configurable.The current implementation always appends a newline character after the data, which assumes a line-based protocol. This might not be appropriate for all TCP protocols.
synchronized (writer) { - // Append newline for framing; adjust as needed for your protocol - writer.write(data); - writer.newLine(); + // Allow configurable newline behavior + boolean appendNewline = call.getBoolean("appendNewline", true); + writer.write(data); + if (appendNewline) { + writer.newLine(); + } writer.flush(); }
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🪛 ast-grep (0.31.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 49-49: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: deploy
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
There was a problem hiding this comment.
Actionable comments posted: 0
🧹 Nitpick comments (3)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (3)
131-142: Consider executing disconnect on a background thread.While the disconnect implementation correctly cleans up resources, it runs on the calling thread which is likely the UI thread. Socket closure can be blocking.
@PluginMethod public void disconnect(PluginCall call) { - try { - closeResources(); - isConnected = false; - JSObject ret = new JSObject(); - ret.put("success", true); - call.resolve(ret); - } catch (Exception e) { - call.reject("Disconnect failed: " + e.getMessage()); - } + getBridge().getExecutor().execute(() -> { + try { + closeResources(); + isConnected = false; + JSObject ret = new JSObject(); + ret.put("success", true); + call.resolve(ret); + } catch (Exception e) { + call.reject("Disconnect failed: " + e.getMessage()); + } + }); }
144-167: Thorough resource cleanup implementation.The closeResources method properly:
- Closes all resources in the correct order
- Nullifies references to prevent memory leaks
- Updates connection state on failures
- Handles exceptions gracefully with logging
- Runs logging on the UI thread
Consider adding a writer.flush() before closing to ensure all buffered data is sent.
if (writer != null) { + writer.flush(); // Ensure all buffered data is sent writer.close(); writer = null; }
24-63:❓ Verification inconclusive
Consider using encrypted socket for sensitive data.
The implementation correctly validates inputs, prevents duplicate connections, and moves network operations to a background thread. The timeout setting is a good practice.
However, the code uses an unencrypted socket which could expose transmitted data to interception.
If your application transmits sensitive data, consider using SSLSocket instead:
- socket = new Socket(ip, port); + SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault(); + socket = (SSLSocket) factory.createSocket(ip, port);This would require adding these imports:
import javax.net.ssl.SSLSocket; import javax.net.ssl.SSLSocketFactory;
🏁 Script executed:
#!/bin/bash # Description: Check if secure communications are required elsewhere in the app # Check for SSL/TLS usage rg -A 2 "SSLSocket|SSLSocketFactory|TrustManager|KeyStore" --type java # Check for sensitive data patterns rg -A 2 "password|credential|token|key|secret|auth" --type javaLength of output: 138
Verify encryption requirements for Socket connections
File: android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Lines: 24-63Ripgrep across the Java codebase didn’t detect any existing SSL/TLS usage (SSLSocketFactory, TrustManager, KeyStore, etc.) or common sensitive-data patterns (password, token, key, secret). Absence of evidence isn’t evidence of absence—if this plugin ever carries credentials or other sensitive information, you should consider switching to an SSLSocket:
- socket = new Socket(ip, port); + SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault(); + socket = (SSLSocket) factory.createSocket(ip, port);And add these imports:
import javax.net.ssl.SSLSocket; import javax.net.ssl.SSLSocketFactory;Please verify whether encrypted communication is required for your use case.
🧰 Tools
🪛 ast-grep (0.31.1)
[info] 49-49: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🪛 ast-grep (0.31.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 49-49: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (4)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (4)
1-16: Well-structured package declarations and class documentation.The class is properly organized with appropriate imports and clear documentation that explains the plugin's purpose. The Capacitor plugin annotation is correctly set up.
19-22: Good field declarations with proper connection state tracking.The class fields are well-defined, including the boolean flag to track connection state. This will help prevent operations on closed sockets.
65-99: Thread-safe send implementation with proper validation.The send method implementation is robust with:
- Input validation
- Connection state verification
- Background thread execution
- Synchronized writer access
- Protocol framing with newline
- Proper error handling and resource cleanup
This addresses all the concerns from previous reviews.
101-129: Excellent non-blocking receive implementation with peer disconnection handling.The receive method correctly:
- Validates connection state before proceeding
- Executes read operations on a background thread
- Handles the case when a peer closes the connection (null readLine return)
- Properly manages resources on exceptions
- Returns data in the correct format
This addresses all previous concerns about blocking reads and error handling.
There was a problem hiding this comment.
Actionable comments posted: 2
🧹 Nitpick comments (3)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (3)
49-54: Raw TCP is sent in cleartext – evaluate TLS or document threat modelStatic analysis flags the plain
new Socket(ip, port)instantiation. If credentials or other sensitive data traverse this channel, consider upgrading toSSLSocketFactoryor at least documenting why encryption is unnecessary in your context (e.g. LAN-only diagnostics).🧰 Tools
🪛 ast-grep (0.38.1)
[info] 49-49: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
150-160:flush()in cleanup can block – usually unnecessary beforeclose()
BufferedWriter.close()already performs an implicit flush. Callingflush()first can add latency or block during error paths (e.g. lost network). You can safely drop it and rely onclose().
86-88: Assumed protocol framing – maybe make configurableAppending
newLine()hard-codes a text-based framing scheme. If binary protocols or CRLF expectations arise, consider exposing a boolean/enum option (e.g.terminator) so callers can pick the delimiter, or document the newline requirement clearly.
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🪛 ast-grep (0.38.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 49-49: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
30-40: Input validation looks solidThe guard clauses for IP emptiness and port range prevent common misuse and avoid
NullPointerExceptionfrom unboxing. Nicely done.
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Outdated
Show resolved
Hide resolved
haslinghuis
force-pushed
the
capacitor-plugin-socket
branch
from
30e43e2 to
6e8146c
Compare
There was a problem hiding this comment.
Actionable comments posted: 1
🧹 Nitpick comments (3)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (3)
25-63: Consider encrypted transport or document security implications
Theconnectmethod creates a rawSocket, which is unencrypted by default (static analysis flagged CWE-319). If you intend to transmit sensitive information, integrateSSLSocketFactoryto enable TLS or clearly document that this plugin provides unauthenticated plain-text TCP. Providing an option to configure SSL/TLS will make this plugin more versatile and secure.🧰 Tools
🪛 ast-grep (0.38.1)
[info] 49-49: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures(unencrypted-socket-java)
105-133: Capturereaderlocally to avoid race conditions
You checkreader != nullbefore scheduling the background task, but you don't capture it inside the executor. Ifdisconnectraces in before the task runs,readermay be null and trigger an NPE. Mirror thesendapproach by doing:BufferedReader localReader = reader; if (localReader == null) { call.reject("Connection lost"); return; } String data = localReader.readLine();
153-174:closeResourcescleanup looks robust
The helper neatly closes streams, nullifies references, logs errors on the UI thread, and resetsisConnected. As a minor nitpick, you can remove the explicitwriter.flush()—close()will flush internally—or separate its exception handling if you want to log flush-specific failures.
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🪛 ast-grep (0.38.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 49-49: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket(ip, port)
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: deploy
🔇 Additional comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
65-103:sendmethod correctly offloads work and guards state
Great use ofgetBridge().getExecutor()to avoid ANRs, input validation, capture ofwriter, synchronized writes, and cleanup on error. Just verify in your Capacitor version that invokingcall.resolve/call.rejectfrom a background thread is safe.
135-147: Verify background-thread context fordisconnectcallbacks
disconnectoffloads cleanup to the executor, which is good, but now thecall.resolvefires off the background thread. Ensure that downstream JavaScript consumers don’t rely on callbacks coming from the UI thread or expect immediate synchronous cleanup.
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
|
@coderabbitio We are stuck in an endless review loop here. All changes made are made on your requests, but keep getting more requests after that for the same file. Please provide a full refactor and working solution for android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java. |
|
Tip For best results, initiate chat on the files or code changes. |
|
A summary of the edits CodeRabbit can apply:
A plan of each step that CodeRabbit will take in order to execute the edits for each file (with inline rough draft snippets): ✏️ android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.javaReplace the entire contents of SocketPlugin.java with the following improved implementation: package betaflight.configurator.plugin;
import android.util.Log;
import com.getcapacitor.JSObject;
import com.getcapacitor.Plugin;
import com.getcapacitor.PluginCall;
import com.getcapacitor.PluginMethod;
import com.getcapacitor.annotation.CapacitorPlugin;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.locks.ReentrantLock;
/**
* Capacitor plugin that provides raw TCP socket functionality with thread safety,
* robust resource management, and comprehensive error handling.
*/
@CapacitorPlugin(name = "SocketPlugin")
public class SocketPlugin extends Plugin {
private static final String TAG = "SocketPlugin";
// Error messages
private static final String ERROR_IP_REQUIRED = "IP address is required";
private static final String ERROR_INVALID_PORT = "Invalid port number";
private static final String ERROR_ALREADY_CONNECTED = "Already connected; please disconnect first";
private static final String ERROR_NOT_CONNECTED = "Not connected to any server";
private static final String ERROR_DATA_REQUIRED = "Data is required";
private static final String ERROR_CONNECTION_LOST = "Connection lost";
private static final String ERROR_CONNECTION_CLOSED = "Connection closed by peer";
// Connection settings
private static final int DEFAULT_TIMEOUT_MS = 30_000;
private static final int MIN_PORT = 1;
private static final int MAX_PORT = 65535;
private enum ConnectionState {
DISCONNECTED,
CONNECTING,
CONNECTED,
DISCONNECTING,
ERROR
}
// Thread-safe state and locks
private final AtomicReference<ConnectionState> state = new AtomicReference<>(ConnectionState.DISCONNECTED);
private final ReentrantLock socketLock = new ReentrantLock();
private final ReentrantLock writerLock = new ReentrantLock();
private Socket socket;
private BufferedReader reader;
private BufferedWriter writer;
@PluginMethod
public void connect(final PluginCall call) {
call.setKeepAlive(true);
String ip = call.getString("ip");
int port = call.getInt("port", -1);
if (ip == null || ip.isEmpty()) {
call.reject(ERROR_IP_REQUIRED);
call.setKeepAlive(false);
return;
}
if (port < MIN_PORT || port > MAX_PORT) {
call.reject(ERROR_INVALID_PORT);
call.setKeepAlive(false);
return;
}
if (!compareAndSetState(ConnectionState.DISCONNECTED, ConnectionState.CONNECTING)) {
call.reject(ERROR_ALREADY_CONNECTED);
call.setKeepAlive(false);
return;
}
getBridge().getExecutor().execute(() -> {
socketLock.lock();
try {
socket = new Socket();
socket.connect(new InetSocketAddress(ip, port), DEFAULT_TIMEOUT_MS);
socket.setSoTimeout(DEFAULT_TIMEOUT_MS);
reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
state.set(ConnectionState.CONNECTED);
JSObject result = new JSObject();
result.put("success", true);
call.resolve(result);
Log.d(TAG, "Connected to " + ip + ":" + port);
} catch (Exception e) {
state.set(ConnectionState.ERROR);
closeResourcesInternal();
call.reject("Connection failed: " + e.getMessage());
Log.e(TAG, "Connection failed", e);
} finally {
socketLock.unlock();
call.setKeepAlive(false);
}
});
}
@PluginMethod
public void send(final PluginCall call) {
String data = call.getString("data");
if (data == null || data.isEmpty()) {
call.reject(ERROR_DATA_REQUIRED);
return;
}
if (state.get() != ConnectionState.CONNECTED) {
call.reject(ERROR_NOT_CONNECTED);
return;
}
call.setKeepAlive(true);
getBridge().getExecutor().execute(() -> {
writerLock.lock();
try {
if (writer == null || state.get() != ConnectionState.CONNECTED) {
call.reject(ERROR_CONNECTION_LOST);
return;
}
writer.write(data);
writer.newLine();
writer.flush();
JSObject result = new JSObject();
result.put("success", true);
call.resolve(result);
Log.d(TAG, "Sent data: " + truncateForLog(data));
} catch (Exception e) {
handleCommunicationError(e, "Send failed", call);
} finally {
writerLock.unlock();
call.setKeepAlive(false);
}
});
}
@PluginMethod
public void receive(final PluginCall call) {
if (state.get() != ConnectionState.CONNECTED || reader == null) {
call.reject(ERROR_NOT_CONNECTED);
return;
}
call.setKeepAlive(true);
getBridge().getExecutor().execute(() -> {
try {
String data = reader.readLine();
if (data == null) {
handleCommunicationError(new IOException("End of stream"), ERROR_CONNECTION_CLOSED, call);
return;
}
JSObject result = new JSObject();
result.put("data", data);
call.resolve(result);
Log.d(TAG, "Received data: " + truncateForLog(data));
} catch (Exception e) {
handleCommunicationError(e, "Receive failed", call);
} finally {
call.setKeepAlive(false);
}
});
}
@PluginMethod
public void disconnect(final PluginCall call) {
ConnectionState current = state.get();
if (current == ConnectionState.DISCONNECTED) {
JSObject result = new JSObject();
result.put("success", true);
call.resolve(result);
return;
}
if (!compareAndSetState(current, ConnectionState.DISCONNECTING)) {
call.reject("Invalid state for disconnect: " + current);
return;
}
call.setKeepAlive(true);
getBridge().getExecutor().execute(() -> {
socketLock.lock();
try {
closeResourcesInternal();
state.set(ConnectionState.DISCONNECTED);
JSObject result = new JSObject();
result.put("success", true);
call.resolve(result);
Log.d(TAG, "Disconnected successfully");
} catch (Exception e) {
state.set(ConnectionState.ERROR);
call.reject("Disconnect failed: " + e.getMessage());
Log.e(TAG, "Disconnect failed", e);
} finally {
socketLock.unlock();
call.setKeepAlive(false);
}
});
}
@Override
protected void handleOnDestroy() {
socketLock.lock();
try {
state.set(ConnectionState.DISCONNECTING);
closeResourcesInternal();
state.set(ConnectionState.DISCONNECTED);
} catch (Exception e) {
Log.e(TAG, "Error cleaning up resources on destroy", e);
} finally {
socketLock.unlock();
}
super.handleOnDestroy();
}
private void closeResourcesInternal() {
if (reader != null) {
try { reader.close(); } catch (IOException e) { Log.e(TAG, "Error closing reader", e);} finally { reader = null; }
}
if (writer != null) {
try { writer.flush(); writer.close(); } catch (IOException e) { Log.e(TAG, "Error closing writer", e);} finally { writer = null; }
}
if (socket != null) {
try { socket.close(); } catch (IOException e) { Log.e(TAG, "Error closing socket", e);} finally { socket = null; }
}
}
private void handleCommunicationError(Exception error, String message, PluginCall call) {
socketLock.lock();
try {
state.set(ConnectionState.ERROR);
closeResourcesInternal();
state.set(ConnectionState.DISCONNECTED);
call.reject(message + ": " + error.getMessage());
Log.e(TAG, message, error);
} finally {
socketLock.unlock();
}
}
private boolean compareAndSetState(ConnectionState expected, ConnectionState newState) {
return state.compareAndSet(expected, newState);
}
private String truncateForLog(String data) {
if (data == null) return "null";
final int maxLen = 100;
if (data.length() <= maxLen) return data;
return data.substring(0, maxLen) + "... (" + data.length() + " chars)";
}
}Build the Android project, deploy the Capacitor app to a device or emulator, and exercise the SocketPlugin by calling its connect, send, receive, and disconnect methods. Verify that operations succeed, errors are handled gracefully, logs are produced as expected, and resources are cleaned up on disconnect or app termination. A summary of the context that CodeRabbit is considering across the codebase:
|
|
Caution CodeRabbit has failed to create a local commit with your edits. |
1 similar comment
|
Caution CodeRabbit has failed to create a local commit with your edits. |
There was a problem hiding this comment.
Actionable comments posted: 1
🧹 Nitpick comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
221-231: Consider separating resource closing into individual methods.While the current implementation works well, having individual methods for closing each resource type (reader, writer, socket) could improve readability and maintainability.
- private void closeResourcesInternal() { - if (reader != null) { - try { reader.close(); } catch (IOException e) { Log.e(TAG, "Error closing reader", e);} finally { reader = null; } - } - if (writer != null) { - try { writer.flush(); writer.close(); } catch (IOException e) { Log.e(TAG, "Error closing writer", e);} finally { writer = null; } - } - if (socket != null) { - try { socket.close(); } catch (IOException e) { Log.e(TAG, "Error closing socket", e);} finally { socket = null; } - } - } + private void closeResourcesInternal() { + closeReader(); + closeWriter(); + closeSocket(); + } + + private void closeReader() { + if (reader != null) { + try { + reader.close(); + } catch (IOException e) { + Log.e(TAG, "Error closing reader", e); + } finally { + reader = null; + } + } + } + + private void closeWriter() { + if (writer != null) { + try { + writer.flush(); + writer.close(); + } catch (IOException e) { + Log.e(TAG, "Error closing writer", e); + } finally { + writer = null; + } + } + } + + private void closeSocket() { + if (socket != null) { + try { + socket.close(); + } catch (IOException e) { + Log.e(TAG, "Error closing socket", e); + } finally { + socket = null; + } + } + }
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
Cache: Disabled due to data retention organization setting
Knowledge Base: Disabled due to data retention organization setting
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🪛 ast-grep (0.38.1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 82-82: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket()
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (9)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (9)
19-24: Well-designed Capacitor plugin structure with clear documentation.The class is properly annotated with
@CapacitorPluginand has clear documentation explaining its purpose and features. The plugin name matches the class name, making it consistent and easy to understand.
27-40: Excellent use of constants for error messages and settings.Using string constants for error messages enhances maintainability and consistency throughout the codebase. The connection settings constants are also well-defined with appropriate names and values.
41-56: Good use of enum and thread-safe fields.The
ConnectionStateenum provides a clear state model, and the thread-safety approach usingAtomicReferenceandReentrantLockis appropriate for a multi-threaded environment where socket operations run on background threads.
107-142: Good implementation of asynchronous send operation with thread safety.The method correctly validates input, checks connection state, and performs I/O operations asynchronously on a background thread with proper synchronization and error handling. The use of
truncateForLogis a nice touch to prevent log pollution.
144-169: Appropriately handling null response in receive method.The receive method correctly detects when the connection is closed by the peer (when
readLine()returns null) and handles this case properly by transitioning to an error state and cleaning up resources.
171-204: Robust disconnect implementation with proper state management.The disconnect method is well-implemented with state validation, thread safety, and proper resource cleanup. It also handles the case where the socket is already disconnected, avoiding unnecessary operations.
206-219: Excellent resource cleanup in handleOnDestroy.The override of
handleOnDestroyensures that resources are properly cleaned up when the plugin is destroyed, preventing resource leaks. The use of locks ensures that cleanup operations don't conflict with ongoing operations.
233-244: Good centralized error handling approach.The
handleCommunicationErrormethod centralizes error handling logic, making the code more maintainable and consistent. It appropriately transitions state, cleans up resources, and logs errors.
246-255: Well-implemented helper methods.The helper methods for state comparison and log truncation are well-implemented. The
truncateForLogmethod is a particularly nice touch that prevents log pollution when dealing with large data payloads.
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
haslinghuis
force-pushed
the
capacitor-plugin-socket
branch
from
6e6dd70 to
98362b9
Compare
There was a problem hiding this comment.
Actionable comments posted: 1
♻️ Duplicate comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
95-99: Critical: Reset state to DISCONNECTED after connection failure.When a connection attempt fails, the state is set to
ERROR(line 96) and resources are cleaned up, but the state is never reset toDISCONNECTED. Because theconnect()method guard (line 74) requires the state to beDISCONNECTED, all subsequent connection attempts will be permanently blocked.This differs from the pattern in
handleCommunicationError()(lines 241-252), which correctly resets the state toDISCONNECTEDafter cleanup.Apply this diff to allow reconnection after failures:
} catch (Exception e) { state.set(ConnectionState.ERROR); closeResourcesInternal(); + state.set(ConnectionState.DISCONNECTED); call.reject("Connection failed: " + e.getMessage()); Log.e(TAG, "Connection failed", e);
🧹 Nitpick comments (1)
capacitor-plugin-socket/package.json (1)
8-10: Add rimraf to devDependencies.The build script references
rimrafbut it's not listed indevDependencies. This will cause build failures unlessrimrafis installed globally or inherited from a parent workspace.Apply this diff to fix the dependency:
"devDependencies": { + "rimraf": "^5.0.0", "typescript": "^5.0.0" }
📜 Review details
Configuration used: Path: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (6)
android/app/src/main/java/betaflight/configurator/MainActivity.java(1 hunks)android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)capacitor-plugin-socket/package.json(1 hunks)capacitor-plugin-socket/src/definitions.ts(1 hunks)capacitor-plugin-socket/src/index.ts(1 hunks)capacitor-plugin-socket/src/web.ts(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (3)
- capacitor-plugin-socket/src/definitions.ts
- capacitor-plugin-socket/src/web.ts
- capacitor-plugin-socket/src/index.ts
🧰 Additional context used
🧠 Learnings (1)
📚 Learning: 2025-06-09T00:32:21.385Z
Learnt from: haslinghuis
Repo: betaflight/betaflight-configurator PR: 0
File: :0-0
Timestamp: 2025-06-09T00:32:21.385Z
Learning: In the betaflight-configurator codebase, port paths use counter prefixes (e.g., "bluetooth1", "bluetooth2", "serial1") rather than direct protocol identifiers. The protocol selection logic correctly uses `portPath.startsWith("bluetooth")` to detect bluetooth ports regardless of the counter suffix, rather than direct string matching against protocol map keys.
Applied to files:
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
🧬 Code graph analysis (2)
android/app/src/main/java/betaflight/configurator/MainActivity.java (1)
capacitor-plugin-socket/src/definitions.ts (1)
SocketPlugin(1-7)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
capacitor-plugin-socket/src/definitions.ts (1)
SocketPlugin(1-7)capacitor-plugin-socket/src/web.ts (5)
connect(7-10)send(12-15)receive(17-20)disconnect(22-25)getStatus(27-30)
🪛 ast-grep (0.39.9)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 82-82: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket()
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (3)
android/app/src/main/java/betaflight/configurator/MainActivity.java (1)
3-13: LGTM! Plugin registration implemented correctly.The
SocketPluginis properly registered in theonCreatelifecycle method, making it available to the Capacitor bridge. The implementation follows the standard Capacitor plugin registration pattern.android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
19-57: Excellent foundation with strong thread-safety primitives.The class structure demonstrates solid engineering:
- Clear
ConnectionStateenum for state machineAtomicReferencefor thread-safe state transitions- Separate
ReentrantLockinstances for socket and writer to minimize contention- Well-defined error message constants
1-264: Strong implementation with excellent patterns—address state reset in error handlers.Overall, this is a well-engineered plugin implementation with several commendable qualities:
✅ Thread safety: Proper use of
AtomicReference,ReentrantLock, and background execution
✅ Resource management: Comprehensive cleanup incloseResourcesInternal()andhandleOnDestroy()
✅ Error handling: Centralized error handling inhandleCommunicationError()with clear error messages
✅ API completeness: All required methods (connect,send,receive,disconnect,getStatus) are present
✅ Logging: Good observability with data truncation for large payloadsThe primary issue is inconsistent state management in error handlers for
connect()anddisconnect(), which can block subsequent operations. Once those are addressed, the plugin will be production-ready for its intended use case of communicating with embedded microcontrollers.Based on learnings: Plain TCP sockets are intentional for microcontroller communication and don't require SSL/TLS.
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
There was a problem hiding this comment.
Actionable comments posted: 1
♻️ Duplicate comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
200-204: Reset state to DISCONNECTED after disconnect failureWhen
disconnect()encounters an exception, the state is set toERROR(line 201) but never reset toDISCONNECTED. While less critical than theconnect()issue (since line 179 allows retrying when alreadyDISCONNECTED), this creates an inconsistent state where resources have been released but the plugin appears to be in an error condition.For consistency with
handleCommunicationError()and to ensure clean state management, reset the state after cleanup:} catch (Exception e) { state.set(ConnectionState.ERROR); + closeResourcesInternal(); + state.set(ConnectionState.DISCONNECTED); call.reject("Disconnect failed: " + e.getMessage()); Log.e(TAG, "Disconnect failed", e);
95-100: Reset state to DISCONNECTED after connection failure to allow retriesAfter a failed connection attempt, the state is set to
ERROR(line 96) but never reset toDISCONNECTED. Becauseconnect()guards withcompareAndSetState(ConnectionState.DISCONNECTED, ConnectionState.CONNECTING)(line 74), subsequent connection attempts will be permanently blocked once the plugin enters theERRORstate.Your
handleCommunicationErrormethod (lines 244–255) demonstrates the correct pattern—reset toDISCONNECTEDafter cleanup. Apply the same pattern here:} catch (Exception e) { state.set(ConnectionState.ERROR); closeResourcesInternal(); + state.set(ConnectionState.DISCONNECTED); call.reject("Connection failed: " + e.getMessage()); Log.e(TAG, "Connection failed", e);
📜 Review details
Configuration used: Path: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🧠 Learnings (1)
📚 Learning: 2025-06-09T00:32:21.385Z
Learnt from: haslinghuis
Repo: betaflight/betaflight-configurator PR: 0
File: :0-0
Timestamp: 2025-06-09T00:32:21.385Z
Learning: In the betaflight-configurator codebase, port paths use counter prefixes (e.g., "bluetooth1", "bluetooth2", "serial1") rather than direct protocol identifiers. The protocol selection logic correctly uses `portPath.startsWith("bluetooth")` to detect bluetooth ports regardless of the counter suffix, rather than direct string matching against protocol map keys.
Applied to files:
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
🧬 Code graph analysis (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (3)
capacitor-plugin-socket/src/definitions.ts (1)
SocketPlugin(1-7)capacitor-plugin-socket/src/index.ts (1)
SocketPlugin(8-8)capacitor-plugin-socket/src/web.ts (5)
connect(7-10)send(12-15)receive(17-20)disconnect(22-25)getStatus(27-30)
🪛 ast-grep (0.39.9)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 82-82: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket()
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
211-267: Excellent implementation with strong engineering practicesThe remaining methods demonstrate solid design:
getStatus(): Clean query interface for connection statehandleOnDestroy(): Proper cleanup with lock acquisition and state transitionscloseResourcesInternal(): Robust resource cleanup with individual error handlinghandleCommunicationError(): Centralized error handling with correct state reset pattern (ERROR → DISCONNECTED)- Helper utilities: Well-designed for thread safety and logging
Overall, this implementation demonstrates strong thread-safety (AtomicReference + ReentrantLocks), comprehensive error handling, and proper resource management. The issues flagged above are targeted fixes to ensure consistent state transitions across all error paths.
Note: Static analysis flags the unencrypted socket (line 83), but per the PR objectives and past discussions, plain TCP is intentional for embedded microcontroller communication. Based on learnings.
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Outdated
Show resolved
Hide resolved
There was a problem hiding this comment.
Actionable comments posted: 1
♻️ Duplicate comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
99-108: Reset state to DISCONNECTED after connection error to allow retry.After a connection failure, the state is set to
ERRORand resources are cleaned up, but the state is never reset toDISCONNECTED. This prevents any subsequent connection attempts because the guard at line 76 requires the state to beDISCONNECTED.Apply this diff to reset the state after cleanup:
} catch (Exception e) { state.set(ConnectionState.ERROR); closeResourcesInternal(); + state.set(ConnectionState.DISCONNECTED); call.reject("Connection failed: " + e.getMessage()); Log.e(TAG, "Connection failed", e);Note: This pattern is already correctly implemented in
handleCommunicationError()(line 297) and should be applied consistently.
180-187: Clean up resources and reset state after disconnect error.When
disconnect()encounters an exception, the state is set toERRORbut resources are never cleaned up and the state is never reset. This leaves the plugin in an inconsistent state with potential resource leaks.Apply this diff to ensure proper cleanup and state reset:
} catch (Exception e) { state.set(ConnectionState.ERROR); + closeResourcesInternal(); + state.set(ConnectionState.DISCONNECTED); call.reject("Disconnect failed: " + e.getMessage()); Log.e(TAG, "Disconnect failed", e);This mirrors the cleanup pattern used in
handleCommunicationError()and ensures consistent behavior.
🧹 Nitpick comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
285-290: Consider improving readability of resource cleanup.The resource cleanup logic is functionally correct but compressed onto single lines, which makes it harder to read and maintain. For better clarity, consider formatting each resource closure across multiple lines.
Example reformatting:
private void closeResourcesInternal() { stopReaderThread(); - if (input != null) { try { input.close(); } catch (IOException e) { Log.e(TAG, "Error closing input stream", e); } finally { input = null; } } - if (output != null) { try { output.close(); } catch (IOException e) { Log.e(TAG, "Error closing output stream", e); } finally { output = null; } } - if (socket != null) { try { socket.close(); } catch (IOException e) { Log.e(TAG, "Error closing socket", e); } finally { socket = null; } } + if (input != null) { + try { + input.close(); + } catch (IOException e) { + Log.e(TAG, "Error closing input stream", e); + } finally { + input = null; + } + } + if (output != null) { + try { + output.close(); + } catch (IOException e) { + Log.e(TAG, "Error closing output stream", e); + } finally { + output = null; + } + } + if (socket != null) { + try { + socket.close(); + } catch (IOException e) { + Log.e(TAG, "Error closing socket", e); + } finally { + socket = null; + } + } }
📜 Review details
Configuration used: Path: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)
🧰 Additional context used
🧠 Learnings (1)
📚 Learning: 2025-06-09T00:32:21.385Z
Learnt from: haslinghuis
Repo: betaflight/betaflight-configurator PR: 0
File: :0-0
Timestamp: 2025-06-09T00:32:21.385Z
Learning: In the betaflight-configurator codebase, port paths use counter prefixes (e.g., "bluetooth1", "bluetooth2", "serial1") rather than direct protocol identifiers. The protocol selection logic correctly uses `portPath.startsWith("bluetooth")` to detect bluetooth ports regardless of the counter suffix, rather than direct string matching against protocol map keys.
Applied to files:
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
🧬 Code graph analysis (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
capacitor-plugin-socket/src/definitions.ts (1)
SocketPlugin(1-7)capacitor-plugin-socket/src/web.ts (5)
connect(7-10)send(12-15)receive(17-20)disconnect(22-25)getStatus(27-30)
🪛 ast-grep (0.39.9)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 84-84: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket()
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (5)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (5)
1-59: LGTM! Excellent class structure and thread-safety setup.The class is well-organized with:
- Clear constant definitions for error messages and configuration
- Proper thread-safety primitives (AtomicReference, ReentrantLock)
- Well-defined ConnectionState enum
- Comprehensive documentation
111-146: LGTM! Send method is well-implemented.The method demonstrates excellent practices:
- Thorough input validation and state checking
- Background execution to avoid blocking the main thread
- Proper synchronization with writerLock
- Double-check of state and output stream inside the lock to prevent race conditions
- Newline framing consistent with the reader thread logic
- Centralized error handling via
handleCommunicationError()
148-154: LGTM! Correct deprecation of polling-based receive.The method correctly rejects calls and directs users to the event-driven
dataReceivedapproach, which aligns with the PR objectives for continuous background reading.
191-197: LGTM! Clean status query implementation.The method provides a simple, thread-safe way to query the current connection state without performing any operations.
199-212: LGTM! Proper lifecycle cleanup.The override correctly manages cleanup when the plugin is destroyed, with appropriate locking, state management, and resource cleanup.
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
Show resolved
Hide resolved
|
@coderabbitai - full review |
|
@haslinghuis I'll perform a full review of PR #4471 now. ✅ Actions performedFull review triggered. |
There was a problem hiding this comment.
Actionable comments posted: 0
♻️ Duplicate comments (2)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (2)
182-185: Reset state and clean up resources after disconnect failure.When
disconnect()encounters an exception, the state is set toERRORwithout callingcloseResourcesInternal()or resetting toDISCONNECTED. This leaves the plugin in an inconsistent state and prevents future operations.For consistency with
handleCommunicationError()(lines 288-290) and to ensure proper resource cleanup, add cleanup and state reset.Apply this diff:
} catch (Exception e) { state.set(ConnectionState.ERROR); + closeResourcesInternal(); + state.set(ConnectionState.DISCONNECTED); call.reject("Disconnect failed: " + e.getMessage()); Log.e(TAG, "Disconnect failed", e);
101-105: Reset state to DISCONNECTED after connection failure to allow retry.When the connection attempt fails, the state is set to
ERRORand resources are cleaned up, but the state is never reset toDISCONNECTED. Sinceconnect()requires the state to beDISCONNECTED(line 78 guard), any subsequent connection attempt will be permanently rejected with "Already connected".Apply this diff:
} catch (Exception e) { state.set(ConnectionState.ERROR); closeResourcesInternal(); + state.set(ConnectionState.DISCONNECTED); call.reject("Connection failed: " + e.getMessage()); Log.e(TAG, "Connection failed", e);
🧹 Nitpick comments (1)
capacitor-plugin-socket/src/web.ts (1)
12-30: Consider using NOT_SUPPORTED_MESSAGE consistently across all methods.The
NOT_SUPPORTED_MESSAGEconstant is defined and used in theconnectmethod but not insend,receive,disconnect, andgetStatus. For consistency and easier maintenance, consider using it throughout.Apply this diff:
async send(options: { data: string }): Promise<{ success: boolean }> { - console.log('Web implementation does not support raw TCP sockets.', options); + console.log(this.NOT_SUPPORTED_MESSAGE, options); return { success: false }; } async receive(): Promise<{ data: string }> { - console.log('Web implementation does not support raw TCP sockets.'); + console.log(this.NOT_SUPPORTED_MESSAGE); return { data: '' }; } async disconnect(): Promise<{ success: boolean }> { - console.log('Web implementation does not support raw TCP sockets.'); + console.log(this.NOT_SUPPORTED_MESSAGE); return { success: false }; } async getStatus(): Promise<{ connected: boolean; state: string }> { - console.log('Web implementation does not support raw TCP sockets.'); + console.log(this.NOT_SUPPORTED_MESSAGE); return { connected: false, state: 'disconnected' }; }
📜 Review details
Configuration used: Path: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (6)
android/app/src/main/java/betaflight/configurator/MainActivity.java(1 hunks)android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java(1 hunks)capacitor-plugin-socket/package.json(1 hunks)capacitor-plugin-socket/src/definitions.ts(1 hunks)capacitor-plugin-socket/src/index.ts(1 hunks)capacitor-plugin-socket/src/web.ts(1 hunks)
🧰 Additional context used
🧠 Learnings (1)
📚 Learning: 2025-06-09T00:32:21.385Z
Learnt from: haslinghuis
Repo: betaflight/betaflight-configurator PR: 0
File: :0-0
Timestamp: 2025-06-09T00:32:21.385Z
Learning: In the betaflight-configurator codebase, port paths use counter prefixes (e.g., "bluetooth1", "bluetooth2", "serial1") rather than direct protocol identifiers. The protocol selection logic correctly uses `portPath.startsWith("bluetooth")` to detect bluetooth ports regardless of the counter suffix, rather than direct string matching against protocol map keys.
Applied to files:
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
🪛 ast-grep (0.39.9)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java
[info] 86-86: "Detected use of a Java socket that is not encrypted. As a result, the
traffic could be read by an attacker intercepting the network traffic. Use
an SSLSocket created by 'SSLSocketFactory' or 'SSLServerSocketFactory'
instead."
Context: new Socket()
Note: [CWE-319] Cleartext Transmission of Sensitive Information [REFERENCES]
- https://owasp.org/Top10/A02_2021-Cryptographic_Failures
(unencrypted-socket-java)
🔇 Additional comments (1)
android/app/src/main/java/betaflight/configurator/plugin/SocketPlugin.java (1)
1-60: Excellent implementation with strong engineering practices.The overall design is outstanding:
- Thread safety:
AtomicReferencefor state management andReentrantLocksynchronization prevent race conditions- Resource management: Comprehensive cleanup in
closeResourcesInternal()with proper null checks and individual try-catch blocks- Error handling: Centralized
handleCommunicationError()provides consistent cleanup and state transitions- Architecture: Clear
ConnectionStateenum and well-structured methodsThe continuous reader thread with Base64-encoded event emission is a solid approach for asynchronous data handling.
|
|
Preview URL: https://pr4471.betaflight-app-preview.pages.dev |
2 participants
Status
Summary by CodeRabbit
New Features
Chores