Bash

cat /c/Users/MikeSwanson/Claude/guru-connect/server/static/dashboard.html | ssh guru@172.16.3.30 "cat > ~/guru-connect/server/static/dashboard.html"

Deploy updated dashboard


Good, the dashboard is deployed. Let me commit the changes.


cd /c/Users/MikeSwanson/Claude/guru-connect && git add -A && git commit -m "$(cat <<'EOF'
Auto-refresh dashboard and show client info

- Support tab auto-refreshes every 3 seconds
- Shows client hostname under code when connected
- Changes Cancel button to Join button when connected
- Added joinSession placeholder function

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
EOF
)" && git push

Commit and push dashboard changes


[main f408667] Auto-refresh dashboard and show client info
 1 file changed, 15 insertions(+), 2 deletions(-)
remote: . Processing 1 references
remote: Processed 1 references in total
To https://git.azcomputerguru.com/azcomputerguru/guru-connect.git
   90ac39a..f408667  main -> main


Done. Now the dashboard should auto-refresh every 3 seconds, show the client hostname when connected, and have a Join button instead of Cancel.


Done. Refresh the dashboard once - it will now:
- **Auto-refresh every 3 seconds** (no manual refresh needed)
- **Show client hostname** under the code when connected
- **Join button** appears when connected (Cancel button when pending)

Try generating a new code and connecting - you'll see it update live.


When I cancel a code, what happens?


The user is asking what happens when they cancel a support code. Let me check the current implementation of cancel_code in support_codes.rs.


Let me check what currently happens:


C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs:75:        .route("/api/codes/:code/cancel", post(cancel_code))
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-76-
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-77-        // WebSocket endpoints
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-78-        .route("/ws/agent", get(relay::agent_ws_handler))
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-79-        .route("/ws/viewer", get(relay::viewer_ws_handler))
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-80-
--
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs:148:async fn cancel_code(
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-149-    State(state): State<AppState>,
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-150-    Path(code): Path<String>,
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-151-) -> impl IntoResponse {
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs:152:    if state.support_codes.cancel_code(&code).await {
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-153-        (StatusCode::OK, "Code cancelled")
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-154-    } else {
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-155-        (StatusCode::BAD_REQUEST, "Cannot cancel code")
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-156-    }
C:\Users\MikeSwanson\Claude\guru-connect\server\src\main.rs-157-}
--
C:\Users\MikeSwanson\Claude\guru-connect\server\src\support_codes.rs:180:    pub async fn cancel_code(&self, code: &str) -> bool {
C:\Users\MikeSwanson\Claude\guru-connect\server\src\support_codes.rs-181-        let mut codes = self.codes.write().await;
C:\Users\MikeSwanson\Claude\guru-connect\server\src\support_codes.rs-182-        if let Some(support_code) = codes.get_mut(code) {
C:\Users\MikeSwanson\Claude\guru-connect\server\src\support_codes.rs-183-            if support_code.status == CodeStatus::Pending {
C:\Users\MikeSwanson\Claude\guru-connect\server\src\support_codes.rs-184-                support_code.status = CodeStatus::Cancelled;
C:\Users\MikeSwanson\Claude\guru-connect\server\src\support_codes.rs-185-                return true;


I see - when you cancel a code:
1. It only works if the status is "Pending"
2. It changes the status to "Cancelled"
3. The cancelled code disappears from the dashboard (because `list_active_codes` only returns pending/connected)

But there's a gap: if a user already downloaded the agent with that code in the filename and runs it, the agent will still try to connect with that code. The server will try to link it but the code won't exist (or will be marked cancelled).

Currently:
- Cancelling a pending code → status becomes "Cancelled", disappears from list
- The agent can still connect but the code won't be linked (silently fails)

What SHOULD happen:
- Cancelling should prevent that code from being used
- If an agent tries to connect with a cancelled code, it should be rejected or at least not linked

The current implementation is okay for now - the code just won't show up in the dashboard if cancelled, and if someone tries to connect with it, it won't link but the agent will still connect (just without a support code association).

Let me explain this to the user.


Currently when you cancel a code:

1. **If status is "Pending"** → Status changes to "Cancelled", disappears from dashboard
2. **If status is "Connected"** → Cancel fails (can't cancel an active session)

**Gap:** If someone already downloaded the agent with that code and runs it after cancellation, the agent will still connect to the server - it just won't be linked to a support code (appears as a regular untracked connection).

**Should we:**
1. Reject connections with cancelled codes entirely?
2. Allow "End Session" for connected codes (disconnect the agent)?
3. Both?


If connected while cancelled - client should end/uninstall for Temp sessions.  If not connected, agent should sense the cancellation on connect, notify user session was cancelled, end/uninstall.


The user wants:

1. If code is cancelled while agent is connected → Agent should disconnect and uninstall (for temp sessions)
2. If code is cancelled before agent connects → When agent tries to connect with cancelled code, server should notify agent that it's cancelled, agent should notify user and uninstall

This requires:
1. Server-side:
   - Track which session is linked to which code
   - When code is cancelled, send a "session cancelled" message to the connected agent
   - When agent connects with cancelled code, reject with "cancelled" response

2. Agent-side:
   - Handle "session cancelled" message from server
   - Show notification to user
   - Clean uninstall (for temp sessions)

This is a significant feature. Let me add it to the TODO and ask if they want me to implement it now or just track it.

Actually, let me implement a basic version:
1. Server: Add API to check if code is valid before/during connection
2. Server: When cancelling a connected code, disconnect the agent (by removing the session)
3. Agent: Handle disconnect gracefully, show message to user

For the "uninstall" part - temp sessions shouldn't really install anything, the user just runs the exe. So "uninstall" really means "close the application".

Let me implement this step by step.


Good requirements. Let me implement this:

**When code is cancelled:**
1. **If connected** → Server disconnects agent, agent shows "Session ended by technician" and exits
2. **If not yet connected** → Agent checks code on connect, server rejects with "cancelled", agent shows message and exits


TodoWrite

Server: Allow cancelling connected codes and disconnect agent

Server: Reject connections with cancelled codes

Agent: Handle session cancelled message gracefully

Deploy and test cancellation flow


Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

Server: Allow cancelling connected codes and disconnect agent

Server: Reject connections with cancelled codes

Agent: Handle session cancelled message gracefully

Deploy and test cancellation flow


Let me start by updating the server:

1. First, update cancel_code to work for both pending and connected codes
2. If connected, we need to disconnect the agent - this means we need to track the connection and be able to close it

The challenge is that the WebSocket connection is managed in the relay handler, not in the support codes manager. I need a way to signal to the relay that a session should be disconnected.

Options:
1. Use a broadcast channel to signal cancellation
2. Store a "cancellation" flag and have the relay check it periodically
3. Store a sender for the WebSocket in the session manager so we can close it

Let me think about the cleanest approach...

The simplest approach is:
1. Add a "cancelled_codes" set that the relay can check
2. When cancel is called, add the code to cancelled_codes
3. Relay periodically checks (or checks on each message) if its code is cancelled
4. If cancelled, close the connection

Actually, a better approach:
1. Store a cancellation channel/flag in the session
2. When cancel is called, signal the flag
3. Relay watches this flag and disconnects when set

Let me implement a simpler version first:
1. Store session_id for each code
2. When cancelling, call sessions.remove_session() to clean up
3. Add a "cancelled" response that the agent can check before/during connection

Actually, the cleanest way is:
1. When code is cancelled, we set a flag
2. The relay handler checks this flag periodically and sends a Disconnect message
3. Agent receives Disconnect and handles it

Let me start with:
1. Allow cancelling connected codes (change status to cancelled)
2. Add an endpoint or mechanism for the agent to poll/check if its session is still valid
3. Have the relay send a Disconnect message when code is cancelled

For now, let me implement a simple version where:
1. Cancel works on connected codes too
2. The relay's main loop checks if the code is still valid and disconnects if cancelled

3. Integrate support_code_manager for periodic validation

I'll focus on a straightforward implementation that allows cancellation during active sessions. The key is creating a mechanism where the relay can periodically verify the code's status and take appropriate disconnection actions. This approach ensures flexibility while maintaining a clean separation of concerns between the support code manager and the relay handler.

The implementation will involve adding a status check that can be easily queried, allowing the relay to make real-time decisions about maintaining or terminating a connection based on the current state of the support code.


First, let me update the server to allow cancelling connected codes and track active sessions:


   175→            support_code.status = CodeStatus::Completed;
   176→        }
   177→    }
   178→
   179→    /// Cancel a code
   180→    pub async fn cancel_code(&self, code: &str) -> bool {
   181→        let mut codes = self.codes.write().await;
   182→        if let Some(support_code) = codes.get_mut(code) {
   183→            if support_code.status == CodeStatus::Pending {
   184→                support_code.status = CodeStatus::Cancelled;
   185→                return true;
   186→            }
   187→        }
   188→        false
   189→    }
   190→
   191→    /// List all codes (for dashboard)
   192→    pub async fn list_codes(&self) -> Vec<SupportCode> {
   193→        let codes = self.codes.read().await;
   194→        codes.values().cloned().collect()
   195→    }
   196→
   197→    /// List active codes only
   198→    pub async fn list_active_codes(&self) -> Vec<SupportCode> {
   199→        let codes = self.codes.read().await;
   200→        codes.values()
   201→            .filter(|c| c.status == CodeStatus::Pending || c.status == CodeStatus::Connected)
   202→            .cloned()
   203→            .collect()
   204→    }

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

            support_code.status = CodeStatus::Completed;
        }
    }

    /// Cancel a code
    pub async fn cancel_code(&self, code: &str) -> bool {
        let mut codes = self.codes.write().await;
        if let Some(support_code) = codes.get_mut(code) {
            if support_code.status == CodeStatus::Pending {
                support_code.status = CodeStatus::Cancelled;
                return true;
            }
        }
        false
    }

    /// List all codes (for dashboard)
    pub async fn list_codes(&self) -> Vec<SupportCode> {
        let codes = self.codes.read().await;
        codes.values().cloned().collect()
    }

    /// List active codes only
    pub async fn list_active_codes(&self) -> Vec<SupportCode> {
        let codes = self.codes.read().await;
        codes.values()
            .filter(|c| c.status == CodeStatus::Pending || c.status == CodeStatus::Connected)
            .cloned()
            .collect()
    }


I need to:1. Update cancel_code to work for both pending and connected codes
2. Add a method to check if a code is cancelled
3. Modify the relay to periodically check if its code has been cancelled

Let me update the cancel_code function first.


Edit

    /// Cancel a code
    pub async fn cancel_code(&self, code: &str) -> bool {
        let mut codes = self.codes.write().await;
        if let Some(support_code) = codes.get_mut(code) {
            if support_code.status == CodeStatus::Pending {
                support_code.status = CodeStatus::Cancelled;
                return true;
            }
        }
        false
    }

    /// Cancel a code (works for both pending and connected)
    pub async fn cancel_code(&self, code: &str) -> bool {
        let mut codes = self.codes.write().await;
        if let Some(support_code) = codes.get_mut(code) {
            if support_code.status == CodeStatus::Pending || support_code.status == CodeStatus::Connected {
                support_code.status = CodeStatus::Cancelled;
                return true;
            }
        }
        false
    }

    /// Check if a code is cancelled
    pub async fn is_cancelled(&self, code: &str) -> bool {
        let codes = self.codes.read().await;
        codes.get(code).map(|c| c.status == CodeStatus::Cancelled).unwrap_or(false)
    }

    /// Check if a code is valid for connection (exists and is pending)
    pub async fn is_valid_for_connection(&self, code: &str) -> bool {
        let codes = self.codes.read().await;
        codes.get(code).map(|c| c.status == CodeStatus::Pending).unwrap_or(false)
    }


The file C:\Users\MikeSwanson\Claude\guru-connect\server\src\support_codes.rs has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   175→            support_code.status = CodeStatus::Completed;
   176→        }
   177→    }
   178→
   179→    /// Cancel a code (works for both pending and connected)
   180→    pub async fn cancel_code(&self, code: &str) -> bool {
   181→        let mut codes = self.codes.write().await;
   182→        if let Some(support_code) = codes.get_mut(code) {
   183→            if support_code.status == CodeStatus::Pending || support_code.status == CodeStatus::Connected {
   184→                support_code.status = CodeStatus::Cancelled;
   185→                return true;
   186→            }
   187→        }
   188→        false
   189→    }
   190→
   191→    /// Check if a code is cancelled
   192→    pub async fn is_cancelled(&self, code: &str) -> bool {
   193→        let codes = self.codes.read().await;
   194→        codes.get(code).map(|c| c.status == CodeStatus::Cancelled).unwrap_or(false)
   195→    }
   196→
   197→    /// Check if a code is valid for connection (exists and is pending)
   198→    pub async fn is_valid_for_connection(&self, code: &str) -> bool {
   199→        let codes = self.codes.read().await;
   200→        codes.get(code).map(|c| c.status == CodeStatus::Pending).unwrap_or(false)
   201→    }
   202→
   203→    /// List all codes (for dashboard)
   204→    pub async fn list_codes(&self) -> Vec<SupportCode> {
   205→        let codes = self.codes.read().await;

    /// Cancel a code (works for both pending and connected)
    pub async fn cancel_code(&self, code: &str) -> bool {
        let mut codes = self.codes.write().await;
        if let Some(support_code) = codes.get_mut(code) {
            if support_code.status == CodeStatus::Pending || support_code.status == CodeStatus::Connected {
                support_code.status = CodeStatus::Cancelled;
                return true;
            }
        }
        false
    }

    /// Check if a code is cancelled
    pub async fn is_cancelled(&self, code: &str) -> bool {
        let codes = self.codes.read().await;
        codes.get(code).map(|c| c.status == CodeStatus::Cancelled).unwrap_or(false)
    }

    /// Check if a code is valid for connection (exists and is pending)
    pub async fn is_valid_for_connection(&self, code: &str) -> bool {
        let codes = self.codes.read().await;
        codes.get(code).map(|c| c.status == CodeStatus::Pending).unwrap_or(false)
    }

//! Support session codes management
//!
//! Handles generation and validation of 6-digit support codes
//! for one-time remote support sessions.

use std::collections::HashMap;
use std::sync::Arc;
use tokio::sync::RwLock;
use chrono::{DateTime, Utc};
use rand::Rng;
use serde::{Deserialize, Serialize};
use uuid::Uuid;

/// A support session code
#[derive(Debug, Clone, Serialize)]
pub struct SupportCode {
    pub code: String,
    pub session_id: Uuid,
    pub created_by: String,
    pub created_at: DateTime<Utc>,
    pub status: CodeStatus,
    pub client_name: Option<String>,
    pub client_machine: Option<String>,
    pub connected_at: Option<DateTime<Utc>>,
}

#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
#[serde(rename_all = "lowercase")]
pub enum CodeStatus {
    Pending,    // Waiting for client to connect
    Connected,  // Client connected, session active
    Completed,  // Session ended normally
    Cancelled,  // Code cancelled by tech
}

/// Request to create a new support code
#[derive(Debug, Deserialize)]
pub struct CreateCodeRequest {
    pub technician_id: Option<String>,
    pub technician_name: Option<String>,
}

/// Response when a code is validated
#[derive(Debug, Serialize)]
pub struct CodeValidation {
    pub valid: bool,
    pub session_id: Option<String>,
    pub server_url: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub error: Option<String>,
}

/// Manages support codes
#[derive(Clone)]
pub struct SupportCodeManager {
    codes: Arc<RwLock<HashMap<String, SupportCode>>>,
    session_to_code: Arc<RwLock<HashMap<Uuid, String>>>,
}

impl SupportCodeManager {
    pub fn new() -> Self {
        Self {
            codes: Arc::new(RwLock::new(HashMap::new())),
            session_to_code: Arc::new(RwLock::new(HashMap::new())),
        }
    }

    /// Generate a unique 6-digit code
    async fn generate_unique_code(&self) -> String {
        let codes = self.codes.read().await;
        let mut rng = rand::thread_rng();

        loop {
            let code: u32 = rng.gen_range(100000..999999);
            let code_str = code.to_string();

            if !codes.contains_key(&code_str) {
                return code_str;
            }
        }
    }

    /// Create a new support code
    pub async fn create_code(&self, request: CreateCodeRequest) -> SupportCode {
        let code = self.generate_unique_code().await;
        let session_id = Uuid::new_v4();

        let support_code = SupportCode {
            code: code.clone(),
            session_id,
            created_by: request.technician_name.unwrap_or_else(|| "Unknown".to_string()),
            created_at: Utc::now(),
            status: CodeStatus::Pending,
            client_name: None,
            client_machine: None,
            connected_at: None,
        };

        let mut codes = self.codes.write().await;
        codes.insert(code.clone(), support_code.clone());

        let mut session_to_code = self.session_to_code.write().await;
        session_to_code.insert(session_id, code);

        support_code
    }

    /// Validate a code and return session info
    pub async fn validate_code(&self, code: &str) -> CodeValidation {
        let codes = self.codes.read().await;

        match codes.get(code) {
            Some(support_code) => {
                if support_code.status == CodeStatus::Pending || support_code.status == CodeStatus::Connected {
                    CodeValidation {
                        valid: true,
                        session_id: Some(support_code.session_id.to_string()),
                        server_url: Some("wss://connect.azcomputerguru.com/ws/support".to_string()),
                        error: None,
                    }
                } else {
                    CodeValidation {
                        valid: false,
                        session_id: None,
                        server_url: None,
                        error: Some("This code has expired or been used".to_string()),
                    }
                }
            }
            None => CodeValidation {
                valid: false,
                session_id: None,
                server_url: None,
                error: Some("Invalid code".to_string()),
            },
        }
    }

    /// Mark a code as connected
    pub async fn mark_connected(&self, code: &str, client_name: Option<String>, client_machine: Option<String>) {
        let mut codes = self.codes.write().await;
        if let Some(support_code) = codes.get_mut(code) {
            support_code.status = CodeStatus::Connected;
            support_code.client_name = client_name;
            support_code.client_machine = client_machine;
            support_code.connected_at = Some(Utc::now());
        }
    }

    /// Link a support code to an actual WebSocket session
    pub async fn link_session(&self, code: &str, real_session_id: Uuid) {
        let mut codes = self.codes.write().await;
        if let Some(support_code) = codes.get_mut(code) {
            // Update session_to_code mapping with real session ID
            let old_session_id = support_code.session_id;
            support_code.session_id = real_session_id;

            // Update the reverse mapping
            let mut session_to_code = self.session_to_code.write().await;
            session_to_code.remove(&old_session_id);
            session_to_code.insert(real_session_id, code.to_string());
        }
    }

    /// Get code by its code string
    pub async fn get_code(&self, code: &str) -> Option<SupportCode> {
        let codes = self.codes.read().await;
        codes.get(code).cloned()
    }

    /// Mark a code as completed
    pub async fn mark_completed(&self, code: &str) {
        let mut codes = self.codes.write().await;
        if let Some(support_code) = codes.get_mut(code) {
            support_code.status = CodeStatus::Completed;
        }
    }

    /// Cancel a code
    pub async fn cancel_code(&self, code: &str) -> bool {
        let mut codes = self.codes.write().await;
        if let Some(support_code) = codes.get_mut(code) {
            if support_code.status == CodeStatus::Pending {
                support_code.status = CodeStatus::Cancelled;
                return true;
            }
        }
        false
    }

    /// List all codes (for dashboard)
    pub async fn list_codes(&self) -> Vec<SupportCode> {
        let codes = self.codes.read().await;
        codes.values().cloned().collect()
    }

    /// List active codes only
    pub async fn list_active_codes(&self) -> Vec<SupportCode> {
        let codes = self.codes.read().await;
        codes.values()
            .filter(|c| c.status == CodeStatus::Pending || c.status == CodeStatus::Connected)
            .cloned()
            .collect()
    }

    /// Get code by session ID
    pub async fn get_by_session(&self, session_id: Uuid) -> Option<SupportCode> {
        let session_to_code = self.session_to_code.read().await;
        let code = session_to_code.get(&session_id)?;

        let codes = self.codes.read().await;
        codes.get(code).cloned()
    }
}

impl Default for SupportCodeManager {
    fn default() -> Self {
        Self::new()
    }
}

+    /// Cancel a code (works for both pending and connected)

-            if support_code.status == CodeStatus::Pending {

+            if support_code.status == CodeStatus::Pending || support_code.status == CodeStatus::Connected {

+    pub async fn is_cancelled(&self, code: &str) -> bool {

+        let codes = self.codes.read().await;

+        codes.get(code).map(|c| c.status == CodeStatus::Cancelled).unwrap_or(false)

+    /// Check if a code is valid for connection (exists and is pending)

+    pub async fn is_valid_for_connection(&self, code: &str) -> bool {

+        codes.get(code).map(|c| c.status == CodeStatus::Pending).unwrap_or(false)


Now I need to update the relay handler to:
1. Check if the code is valid when connecting (reject if cancelled)
2. Periodically check if the code has been cancelled and send a Disconnect message

Let me update the relay handler.


Now update the relay to check for cancellation and reject cancelled codes:


    65→/// Handle an agent WebSocket connection
    66→async fn handle_agent_connection(
    67→    socket: WebSocket,
    68→    sessions: SessionManager,
    69→    support_codes: crate::support_codes::SupportCodeManager,
    70→    agent_id: String,
    71→    agent_name: String,
    72→    support_code: Option<String>,
    73→) {
    74→    info!("Agent connected: {} ({})", agent_name, agent_id);
    75→
    76→    // Register the agent and get channels
    77→    let (session_id, frame_tx, mut input_rx) = sessions.register_agent(agent_id.clone(), agent_name.clone()).await;
    78→
    79→    info!("Session created: {}", session_id);
    80→
    81→    // If a support code was provided, mark it as connected
    82→    if let Some(ref code) = support_code {
    83→        info!("Linking support code {} to session {}", code, session_id);
    84→        support_codes.mark_connected(code, Some(agent_name.clone()), Some(agent_id.clone())).await;
    85→        support_codes.link_session(code, session_id).await;
    86→    }
    87→
    88→    let (mut ws_sender, mut ws_receiver) = socket.split();
    89→
    90→    // Task to forward input events from viewers to agent
    91→    let input_forward = tokio::spawn(async move {
    92→        while let Some(input_data) = input_rx.recv().await {
    93→            if ws_sender.send(Message::Binary(input_data.into())).await.is_err() {
    94→                break;
    95→            }
    96→        }
    97→    });
    98→
    99→    let sessions_cleanup = sessions.clone();
   100→    let support_codes_cleanup = support_codes.clone();
   101→    let support_code_cleanup = support_code.clone();
   102→
   103→    // Main loop: receive frames from agent and broadcast to viewers
   104→    while let Some(msg) = ws_receiver.next().await {
   105→        match msg {
   106→            Ok(Message::Binary(data)) => {
   107→                // Try to decode as protobuf message
   108→                match proto::Message::decode(data.as_ref()) {
   109→                    Ok(proto_msg) => {
   110→                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
   111→                            // Broadcast frame to all viewers
   112→                            let _ = frame_tx.send(data.to_vec());
   113→                        }
   114→                    }
   115→                    Err(e) => {
   116→                        warn!("Failed to decode agent message: {}", e);
   117→                    }
   118→                }
   119→            }
   120→            Ok(Message::Close(_)) => {
   121→                info!("Agent disconnected: {}", agent_id);
   122→                break;
   123→            }
   124→            Ok(Message::Ping(data)) => {
   125→                // Pong is handled automatically by axum
   126→                let _ = data;
   127→            }
   128→            Ok(_) => {}
   129→            Err(e) => {
   130→                error!("WebSocket error from agent {}: {}", agent_id, e);
   131→                break;
   132→            }
   133→        }
   134→    }
   135→
   136→    // Cleanup
   137→    input_forward.abort();
   138→    sessions_cleanup.remove_session(session_id).await;
   139→
   140→    // Mark support code as completed if one was used
   141→    if let Some(ref code) = support_code_cleanup {
   142→        support_codes_cleanup.mark_completed(code).await;
   143→        info!("Support code {} marked as completed", code);
   144→    }

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

/// Handle an agent WebSocket connection
async fn handle_agent_connection(
    socket: WebSocket,
    sessions: SessionManager,
    support_codes: crate::support_codes::SupportCodeManager,
    agent_id: String,
    agent_name: String,
    support_code: Option<String>,
) {
    info!("Agent connected: {} ({})", agent_name, agent_id);

    // Register the agent and get channels
    let (session_id, frame_tx, mut input_rx) = sessions.register_agent(agent_id.clone(), agent_name.clone()).await;

    info!("Session created: {}", session_id);

    // If a support code was provided, mark it as connected
    if let Some(ref code) = support_code {
        info!("Linking support code {} to session {}", code, session_id);
        support_codes.mark_connected(code, Some(agent_name.clone()), Some(agent_id.clone())).await;
        support_codes.link_session(code, session_id).await;
    }

    let (mut ws_sender, mut ws_receiver) = socket.split();

    // Task to forward input events from viewers to agent
    let input_forward = tokio::spawn(async move {
        while let Some(input_data) = input_rx.recv().await {
            if ws_sender.send(Message::Binary(input_data.into())).await.is_err() {
                break;
            }
        }
    });

    let sessions_cleanup = sessions.clone();
    let support_codes_cleanup = support_codes.clone();
    let support_code_cleanup = support_code.clone();

    // Main loop: receive frames from agent and broadcast to viewers
    while let Some(msg) = ws_receiver.next().await {
        match msg {
            Ok(Message::Binary(data)) => {
                // Try to decode as protobuf message
                match proto::Message::decode(data.as_ref()) {
                    Ok(proto_msg) => {
                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
                            // Broadcast frame to all viewers
                            let _ = frame_tx.send(data.to_vec());
                        }
                    }
                    Err(e) => {
                        warn!("Failed to decode agent message: {}", e);
                    }
                }
            }
            Ok(Message::Close(_)) => {
                info!("Agent disconnected: {}", agent_id);
                break;
            }
            Ok(Message::Ping(data)) => {
                // Pong is handled automatically by axum
                let _ = data;
            }
            Ok(_) => {}
            Err(e) => {
                error!("WebSocket error from agent {}: {}", agent_id, e);
                break;
            }
        }
    }

    // Cleanup
    input_forward.abort();
    sessions_cleanup.remove_session(session_id).await;

    // Mark support code as completed if one was used
    if let Some(ref code) = support_code_cleanup {
        support_codes_cleanup.mark_completed(code).await;
        info!("Support code {} marked as completed", code);
    }


I need to:1. Check if the code is cancelled before allowing the connection2. Periodically check if the code has been cancelled during the sessionThe tricky part is that the main loop is blocking on `ws_receiver.next().await`. I need to use `tokio::select!` to also check for cancellation.Let me update the handler to:1. Check if code is cancelled/invalid at connection time and send a Disconnect message
2. Use select! to check for cancellation during the session


/// Handle an agent WebSocket connection
async fn handle_agent_connection(
    socket: WebSocket,
    sessions: SessionManager,
    support_codes: crate::support_codes::SupportCodeManager,
    agent_id: String,
    agent_name: String,
    support_code: Option<String>,
) {
    info!("Agent connected: {} ({})", agent_name, agent_id);

    // Register the agent and get channels
    let (session_id, frame_tx, mut input_rx) = sessions.register_agent(agent_id.clone(), agent_name.clone()).await;

    info!("Session created: {}", session_id);

    // If a support code was provided, mark it as connected
    if let Some(ref code) = support_code {
        info!("Linking support code {} to session {}", code, session_id);
        support_codes.mark_connected(code, Some(agent_name.clone()), Some(agent_id.clone())).await;
        support_codes.link_session(code, session_id).await;
    }

    let (mut ws_sender, mut ws_receiver) = socket.split();

/// Handle an agent WebSocket connection
async fn handle_agent_connection(
    socket: WebSocket,
    sessions: SessionManager,
    support_codes: crate::support_codes::SupportCodeManager,
    agent_id: String,
    agent_name: String,
    support_code: Option<String>,
) {
    info!("Agent connected: {} ({})", agent_name, agent_id);

    let (mut ws_sender, mut ws_receiver) = socket.split();

    // If a support code was provided, check if it's valid
    if let Some(ref code) = support_code {
        // Check if the code is cancelled or invalid
        if support_codes.is_cancelled(code).await {
            warn!("Agent tried to connect with cancelled code: {}", code);
            // Send disconnect message to agent
            let disconnect_msg = proto::Message {
                payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {
                    reason: "Support session was cancelled by technician".to_string(),
                })),
            };
            let mut buf = Vec::new();
            if prost::Message::encode(&disconnect_msg, &mut buf).is_ok() {
                let _ = ws_sender.send(Message::Binary(buf.into())).await;
            }
            let _ = ws_sender.close().await;
            return;
        }
    }

    // Register the agent and get channels
    let (session_id, frame_tx, mut input_rx) = sessions.register_agent(agent_id.clone(), agent_name.clone()).await;

    info!("Session created: {}", session_id);

    // If a support code was provided, mark it as connected
    if let Some(ref code) = support_code {
        info!("Linking support code {} to session {}", code, session_id);
        support_codes.mark_connected(code, Some(agent_name.clone()), Some(agent_id.clone())).await;
        support_codes.link_session(code, session_id).await;
    }


The file C:\Users\MikeSwanson\Claude\guru-connect\server\src\relay\mod.rs has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
    61→
    62→    ws.on_upgrade(move |socket| handle_viewer_connection(socket, sessions, session_id))
    63→}
    64→
    65→/// Handle an agent WebSocket connection
    66→async fn handle_agent_connection(
    67→    socket: WebSocket,
    68→    sessions: SessionManager,
    69→    support_codes: crate::support_codes::SupportCodeManager,
    70→    agent_id: String,
    71→    agent_name: String,
    72→    support_code: Option<String>,
    73→) {
    74→    info!("Agent connected: {} ({})", agent_name, agent_id);
    75→
    76→    let (mut ws_sender, mut ws_receiver) = socket.split();
    77→
    78→    // If a support code was provided, check if it's valid
    79→    if let Some(ref code) = support_code {
    80→        // Check if the code is cancelled or invalid
    81→        if support_codes.is_cancelled(code).await {
    82→            warn!("Agent tried to connect with cancelled code: {}", code);
    83→            // Send disconnect message to agent
    84→            let disconnect_msg = proto::Message {
    85→                payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {
    86→                    reason: "Support session was cancelled by technician".to_string(),
    87→                })),
    88→            };
    89→            let mut buf = Vec::new();
    90→            if prost::Message::encode(&disconnect_msg, &mut buf).is_ok() {
    91→                let _ = ws_sender.send(Message::Binary(buf.into())).await;
    92→            }
    93→            let _ = ws_sender.close().await;
    94→            return;
    95→        }
    96→    }
    97→
    98→    // Register the agent and get channels
    99→    let (session_id, frame_tx, mut input_rx) = sessions.register_agent(agent_id.clone(), agent_name.clone()).await;
   100→
   101→    info!("Session created: {}", session_id);
   102→
   103→    // If a support code was provided, mark it as connected
   104→    if let Some(ref code) = support_code {
   105→        info!("Linking support code {} to session {}", code, session_id);
   106→        support_codes.mark_connected(code, Some(agent_name.clone()), Some(agent_id.clone())).await;
   107→        support_codes.link_session(code, session_id).await;
   108→    }
   109→
   110→    // Task to forward input events from viewers to agent
   111→    let input_forward = tokio::spawn(async move {
   112→        while let Some(input_data) = input_rx.recv().await {

/// Handle an agent WebSocket connection
async fn handle_agent_connection(
    socket: WebSocket,
    sessions: SessionManager,
    support_codes: crate::support_codes::SupportCodeManager,
    agent_id: String,
    agent_name: String,
    support_code: Option<String>,
) {
    info!("Agent connected: {} ({})", agent_name, agent_id);

    let (mut ws_sender, mut ws_receiver) = socket.split();

    // If a support code was provided, check if it's valid
    if let Some(ref code) = support_code {
        // Check if the code is cancelled or invalid
        if support_codes.is_cancelled(code).await {
            warn!("Agent tried to connect with cancelled code: {}", code);
            // Send disconnect message to agent
            let disconnect_msg = proto::Message {
                payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {
                    reason: "Support session was cancelled by technician".to_string(),
                })),
            };
            let mut buf = Vec::new();
            if prost::Message::encode(&disconnect_msg, &mut buf).is_ok() {
                let _ = ws_sender.send(Message::Binary(buf.into())).await;
            }
            let _ = ws_sender.close().await;
            return;
        }
    }

    // Register the agent and get channels
    let (session_id, frame_tx, mut input_rx) = sessions.register_agent(agent_id.clone(), agent_name.clone()).await;

    info!("Session created: {}", session_id);

    // If a support code was provided, mark it as connected
    if let Some(ref code) = support_code {
        info!("Linking support code {} to session {}", code, session_id);
        support_codes.mark_connected(code, Some(agent_name.clone()), Some(agent_id.clone())).await;
        support_codes.link_session(code, session_id).await;
    }

//! WebSocket relay handlers
//!
//! Handles WebSocket connections from agents and viewers,
//! relaying video frames and input events between them.

use axum::{
    extract::{
        ws::{Message, WebSocket, WebSocketUpgrade},
        Query, State,
    },
    response::IntoResponse,
};
use futures_util::{SinkExt, StreamExt};
use prost::Message as ProstMessage;
use serde::Deserialize;
use tracing::{error, info, warn};

use crate::proto;
use crate::session::SessionManager;
use crate::AppState;

#[derive(Debug, Deserialize)]
pub struct AgentParams {
    agent_id: String,
    #[serde(default)]
    agent_name: Option<String>,
    #[serde(default)]
    support_code: Option<String>,
    #[serde(default)]
    hostname: Option<String>,
}

#[derive(Debug, Deserialize)]
pub struct ViewerParams {
    session_id: String,
}

/// WebSocket handler for agent connections
pub async fn agent_ws_handler(
    ws: WebSocketUpgrade,
    State(state): State<AppState>,
    Query(params): Query<AgentParams>,
) -> impl IntoResponse {
    let agent_id = params.agent_id;
    let agent_name = params.hostname.or(params.agent_name).unwrap_or_else(|| agent_id.clone());
    let support_code = params.support_code;
    let sessions = state.sessions.clone();
    let support_codes = state.support_codes.clone();

    ws.on_upgrade(move |socket| handle_agent_connection(socket, sessions, support_codes, agent_id, agent_name, support_code))
}

/// WebSocket handler for viewer connections
pub async fn viewer_ws_handler(
    ws: WebSocketUpgrade,
    State(state): State<AppState>,
    Query(params): Query<ViewerParams>,
) -> impl IntoResponse {
    let session_id = params.session_id;
    let sessions = state.sessions.clone();

    ws.on_upgrade(move |socket| handle_viewer_connection(socket, sessions, session_id))
}

/// Handle an agent WebSocket connection
async fn handle_agent_connection(
    socket: WebSocket,
    sessions: SessionManager,
    support_codes: crate::support_codes::SupportCodeManager,
    agent_id: String,
    agent_name: String,
    support_code: Option<String>,
) {
    info!("Agent connected: {} ({})", agent_name, agent_id);

    // Register the agent and get channels
    let (session_id, frame_tx, mut input_rx) = sessions.register_agent(agent_id.clone(), agent_name.clone()).await;

    info!("Session created: {}", session_id);

    // If a support code was provided, mark it as connected
    if let Some(ref code) = support_code {
        info!("Linking support code {} to session {}", code, session_id);
        support_codes.mark_connected(code, Some(agent_name.clone()), Some(agent_id.clone())).await;
        support_codes.link_session(code, session_id).await;
    }

    let (mut ws_sender, mut ws_receiver) = socket.split();

    // Task to forward input events from viewers to agent
    let input_forward = tokio::spawn(async move {
        while let Some(input_data) = input_rx.recv().await {
            if ws_sender.send(Message::Binary(input_data.into())).await.is_err() {
                break;
            }
        }
    });

    let sessions_cleanup = sessions.clone();
    let support_codes_cleanup = support_codes.clone();
    let support_code_cleanup = support_code.clone();

    // Main loop: receive frames from agent and broadcast to viewers
    while let Some(msg) = ws_receiver.next().await {
        match msg {
            Ok(Message::Binary(data)) => {
                // Try to decode as protobuf message
                match proto::Message::decode(data.as_ref()) {
                    Ok(proto_msg) => {
                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
                            // Broadcast frame to all viewers
                            let _ = frame_tx.send(data.to_vec());
                        }
                    }
                    Err(e) => {
                        warn!("Failed to decode agent message: {}", e);
                    }
                }
            }
            Ok(Message::Close(_)) => {
                info!("Agent disconnected: {}", agent_id);
                break;
            }
            Ok(Message::Ping(data)) => {
                // Pong is handled automatically by axum
                let _ = data;
            }
            Ok(_) => {}
            Err(e) => {
                error!("WebSocket error from agent {}: {}", agent_id, e);
                break;
            }
        }
    }

    // Cleanup
    input_forward.abort();
    sessions_cleanup.remove_session(session_id).await;

    // Mark support code as completed if one was used
    if let Some(ref code) = support_code_cleanup {
        support_codes_cleanup.mark_completed(code).await;
        info!("Support code {} marked as completed", code);
    }

    info!("Session {} ended", session_id);
}

/// Handle a viewer WebSocket connection
async fn handle_viewer_connection(
    socket: WebSocket,
    sessions: SessionManager,
    session_id_str: String,
) {
    // Parse session ID
    let session_id = match uuid::Uuid::parse_str(&session_id_str) {
        Ok(id) => id,
        Err(_) => {
            warn!("Invalid session ID: {}", session_id_str);
            return;
        }
    };

    // Join the session
    let (mut frame_rx, input_tx) = match sessions.join_session(session_id).await {
        Some(channels) => channels,
        None => {
            warn!("Session not found: {}", session_id);
            return;
        }
    };

    info!("Viewer joined session: {}", session_id);

    let (mut ws_sender, mut ws_receiver) = socket.split();

    // Task to forward frames from agent to this viewer
    let frame_forward = tokio::spawn(async move {
        while let Ok(frame_data) = frame_rx.recv().await {
            if ws_sender.send(Message::Binary(frame_data.into())).await.is_err() {
                break;
            }
        }
    });

    let sessions_cleanup = sessions.clone();

    // Main loop: receive input from viewer and forward to agent
    while let Some(msg) = ws_receiver.next().await {
        match msg {
            Ok(Message::Binary(data)) => {
                // Try to decode as protobuf message
                match proto::Message::decode(data.as_ref()) {
                    Ok(proto_msg) => {
                        match &proto_msg.payload {
                            Some(proto::message::Payload::MouseEvent(_)) |
                            Some(proto::message::Payload::KeyEvent(_)) => {
                                // Forward input to agent
                                let _ = input_tx.send(data.to_vec()).await;
                            }
                            _ => {}
                        }
                    }
                    Err(e) => {
                        warn!("Failed to decode viewer message: {}", e);
                    }
                }
            }
            Ok(Message::Close(_)) => {
                info!("Viewer disconnected from session: {}", session_id);
                break;
            }
            Ok(_) => {}
            Err(e) => {
                error!("WebSocket error from viewer: {}", e);
                break;
            }
        }
    }

    // Cleanup
    frame_forward.abort();
    sessions_cleanup.leave_session(session_id).await;
    info!("Viewer left session: {}", session_id);
}

+    let (mut ws_sender, mut ws_receiver) = socket.split();

+    // If a support code was provided, check if it's valid

+    if let Some(ref code) = support_code {

+        // Check if the code is cancelled or invalid

+        if support_codes.is_cancelled(code).await {

+            warn!("Agent tried to connect with cancelled code: {}", code);

+            // Send disconnect message to agent

+            let disconnect_msg = proto::Message {

+                payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {

+                    reason: "Support session was cancelled by technician".to_string(),

+            if prost::Message::encode(&disconnect_msg, &mut buf).is_ok() {

+                let _ = ws_sender.send(Message::Binary(buf.into())).await;

+            let _ = ws_sender.close().await;

-    let (mut ws_sender, mut ws_receiver) = socket.split();


Good, now I need to also add periodic checking for cancellation during an active session. This is more complex because we need to check while the main loop is running.

Let me update the main loop to use `tokio::select!` with a periodic cancellation check.


Now add periodic cancellation checking during the session. Need to update the main loop:


   108→    }
   109→
   110→    // Task to forward input events from viewers to agent
   111→    let input_forward = tokio::spawn(async move {
   112→        while let Some(input_data) = input_rx.recv().await {
   113→            if ws_sender.send(Message::Binary(input_data.into())).await.is_err() {
   114→                break;
   115→            }
   116→        }
   117→    });
   118→
   119→    let sessions_cleanup = sessions.clone();
   120→    let support_codes_cleanup = support_codes.clone();
   121→    let support_code_cleanup = support_code.clone();
   122→
   123→    // Main loop: receive frames from agent and broadcast to viewers
   124→    while let Some(msg) = ws_receiver.next().await {
   125→        match msg {
   126→            Ok(Message::Binary(data)) => {
   127→                // Try to decode as protobuf message
   128→                match proto::Message::decode(data.as_ref()) {
   129→                    Ok(proto_msg) => {
   130→                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
   131→                            // Broadcast frame to all viewers
   132→                            let _ = frame_tx.send(data.to_vec());
   133→                        }
   134→                    }
   135→                    Err(e) => {
   136→                        warn!("Failed to decode agent message: {}", e);
   137→                    }
   138→                }
   139→            }
   140→            Ok(Message::Close(_)) => {
   141→                info!("Agent disconnected: {}", agent_id);
   142→                break;
   143→            }
   144→            Ok(Message::Ping(data)) => {
   145→                // Pong is handled automatically by axum
   146→                let _ = data;
   147→            }
   148→            Ok(_) => {}
   149→            Err(e) => {
   150→                error!("WebSocket error from agent {}: {}", agent_id, e);
   151→                break;
   152→            }
   153→        }
   154→    }
   155→
   156→    // Cleanup
   157→    input_forward.abort();
   158→    sessions_cleanup.remove_session(session_id).await;
   159→
   160→    // Mark support code as completed if one was used
   161→    if let Some(ref code) = support_code_cleanup {
   162→        support_codes_cleanup.mark_completed(code).await;
   163→        info!("Support code {} marked as completed", code);
   164→    }
   165→
   166→    info!("Session {} ended", session_id);
   167→}

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

    }

    // Task to forward input events from viewers to agent
    let input_forward = tokio::spawn(async move {
        while let Some(input_data) = input_rx.recv().await {
            if ws_sender.send(Message::Binary(input_data.into())).await.is_err() {
                break;
            }
        }
    });

    let sessions_cleanup = sessions.clone();
    let support_codes_cleanup = support_codes.clone();
    let support_code_cleanup = support_code.clone();

    // Main loop: receive frames from agent and broadcast to viewers
    while let Some(msg) = ws_receiver.next().await {
        match msg {
            Ok(Message::Binary(data)) => {
                // Try to decode as protobuf message
                match proto::Message::decode(data.as_ref()) {
                    Ok(proto_msg) => {
                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
                            // Broadcast frame to all viewers
                            let _ = frame_tx.send(data.to_vec());
                        }
                    }
                    Err(e) => {
                        warn!("Failed to decode agent message: {}", e);
                    }
                }
            }
            Ok(Message::Close(_)) => {
                info!("Agent disconnected: {}", agent_id);
                break;
            }
            Ok(Message::Ping(data)) => {
                // Pong is handled automatically by axum
                let _ = data;
            }
            Ok(_) => {}
            Err(e) => {
                error!("WebSocket error from agent {}: {}", agent_id, e);
                break;
            }
        }
    }

    // Cleanup
    input_forward.abort();
    sessions_cleanup.remove_session(session_id).await;

    // Mark support code as completed if one was used
    if let Some(ref code) = support_code_cleanup {
        support_codes_cleanup.mark_completed(code).await;
        info!("Support code {} marked as completed", code);
    }

    info!("Session {} ended", session_id);
}


I need to modify this to:1. Keep track of the sender so we can send a disconnect message
2. Use select! to periodically check if the code has been cancelled

The issue is that `ws_sender` is moved into the `input_forward` task. I need to restructure this.

Let me rewrite the main loop to use a shared sender and check for cancellation.


    // Task to forward input events from viewers to agent
    let input_forward = tokio::spawn(async move {
        while let Some(input_data) = input_rx.recv().await {
            if ws_sender.send(Message::Binary(input_data.into())).await.is_err() {
                break;
            }
        }
    });

    let sessions_cleanup = sessions.clone();
    let support_codes_cleanup = support_codes.clone();
    let support_code_cleanup = support_code.clone();

    // Main loop: receive frames from agent and broadcast to viewers
    while let Some(msg) = ws_receiver.next().await {
        match msg {
            Ok(Message::Binary(data)) => {
                // Try to decode as protobuf message
                match proto::Message::decode(data.as_ref()) {
                    Ok(proto_msg) => {
                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
                            // Broadcast frame to all viewers
                            let _ = frame_tx.send(data.to_vec());
                        }
                    }
                    Err(e) => {
                        warn!("Failed to decode agent message: {}", e);
                    }
                }
            }
            Ok(Message::Close(_)) => {
                info!("Agent disconnected: {}", agent_id);
                break;
            }
            Ok(Message::Ping(data)) => {
                // Pong is handled automatically by axum
                let _ = data;
            }
            Ok(_) => {}
            Err(e) => {
                error!("WebSocket error from agent {}: {}", agent_id, e);
                break;
            }
        }
    }

    // Cleanup
    input_forward.abort();
    sessions_cleanup.remove_session(session_id).await;

    // Mark support code as completed if one was used
    if let Some(ref code) = support_code_cleanup {
        support_codes_cleanup.mark_completed(code).await;
        info!("Support code {} marked as completed", code);
    }

    info!("Session {} ended", session_id);
}

    // Use Arc<Mutex> for sender so we can use it from multiple places
    let ws_sender = std::sync::Arc::new(tokio::sync::Mutex::new(ws_sender));
    let ws_sender_input = ws_sender.clone();
    let ws_sender_cancel = ws_sender.clone();

    // Task to forward input events from viewers to agent
    let input_forward = tokio::spawn(async move {
        while let Some(input_data) = input_rx.recv().await {
            let mut sender = ws_sender_input.lock().await;
            if sender.send(Message::Binary(input_data.into())).await.is_err() {
                break;
            }
        }
    });

    let sessions_cleanup = sessions.clone();
    let support_codes_cleanup = support_codes.clone();
    let support_code_cleanup = support_code.clone();
    let support_code_check = support_code.clone();
    let support_codes_check = support_codes.clone();

    // Task to check for cancellation every 2 seconds
    let cancel_check = tokio::spawn(async move {
        let mut interval = tokio::time::interval(std::time::Duration::from_secs(2));
        loop {
            interval.tick().await;
            if let Some(ref code) = support_code_check {
                if support_codes_check.is_cancelled(code).await {
                    info!("Support code {} was cancelled, disconnecting agent", code);
                    // Send disconnect message
                    let disconnect_msg = proto::Message {
                        payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {
                            reason: "Support session was cancelled by technician".to_string(),
                        })),
                    };
                    let mut buf = Vec::new();
                    if prost::Message::encode(&disconnect_msg, &mut buf).is_ok() {
                        let mut sender = ws_sender_cancel.lock().await;
                        let _ = sender.send(Message::Binary(buf.into())).await;
                        let _ = sender.close().await;
                    }
                    break;
                }
            }
        }
    });

    // Main loop: receive frames from agent and broadcast to viewers
    while let Some(msg) = ws_receiver.next().await {
        match msg {
            Ok(Message::Binary(data)) => {
                // Try to decode as protobuf message
                match proto::Message::decode(data.as_ref()) {
                    Ok(proto_msg) => {
                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
                            // Broadcast frame to all viewers
                            let _ = frame_tx.send(data.to_vec());
                        }
                    }
                    Err(e) => {
                        warn!("Failed to decode agent message: {}", e);
                    }
                }
            }
            Ok(Message::Close(_)) => {
                info!("Agent disconnected: {}", agent_id);
                break;
            }
            Ok(Message::Ping(data)) => {
                // Pong is handled automatically by axum
                let _ = data;
            }
            Ok(_) => {}
            Err(e) => {
                error!("WebSocket error from agent {}: {}", agent_id, e);
                break;
            }
        }
    }

    // Cleanup
    input_forward.abort();
    cancel_check.abort();
    sessions_cleanup.remove_session(session_id).await;

    // Mark support code as completed if one was used (unless cancelled)
    if let Some(ref code) = support_code_cleanup {
        if !support_codes_cleanup.is_cancelled(code).await {
            support_codes_cleanup.mark_completed(code).await;
            info!("Support code {} marked as completed", code);
        }
    }

    info!("Session {} ended", session_id);
}


The file C:\Users\MikeSwanson\Claude\guru-connect\server\src\relay\mod.rs has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   106→        support_codes.mark_connected(code, Some(agent_name.clone()), Some(agent_id.clone())).await;
   107→        support_codes.link_session(code, session_id).await;
   108→    }
   109→
   110→    // Use Arc<Mutex> for sender so we can use it from multiple places
   111→    let ws_sender = std::sync::Arc::new(tokio::sync::Mutex::new(ws_sender));
   112→    let ws_sender_input = ws_sender.clone();
   113→    let ws_sender_cancel = ws_sender.clone();
   114→
   115→    // Task to forward input events from viewers to agent
   116→    let input_forward = tokio::spawn(async move {
   117→        while let Some(input_data) = input_rx.recv().await {
   118→            let mut sender = ws_sender_input.lock().await;
   119→            if sender.send(Message::Binary(input_data.into())).await.is_err() {
   120→                break;
   121→            }
   122→        }
   123→    });
   124→
   125→    let sessions_cleanup = sessions.clone();
   126→    let support_codes_cleanup = support_codes.clone();
   127→    let support_code_cleanup = support_code.clone();
   128→    let support_code_check = support_code.clone();
   129→    let support_codes_check = support_codes.clone();
   130→
   131→    // Task to check for cancellation every 2 seconds
   132→    let cancel_check = tokio::spawn(async move {
   133→        let mut interval = tokio::time::interval(std::time::Duration::from_secs(2));
   134→        loop {
   135→            interval.tick().await;
   136→            if let Some(ref code) = support_code_check {
   137→                if support_codes_check.is_cancelled(code).await {
   138→                    info!("Support code {} was cancelled, disconnecting agent", code);
   139→                    // Send disconnect message
   140→                    let disconnect_msg = proto::Message {
   141→                        payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {
   142→                            reason: "Support session was cancelled by technician".to_string(),
   143→                        })),
   144→                    };
   145→                    let mut buf = Vec::new();
   146→                    if prost::Message::encode(&disconnect_msg, &mut buf).is_ok() {
   147→                        let mut sender = ws_sender_cancel.lock().await;
   148→                        let _ = sender.send(Message::Binary(buf.into())).await;
   149→                        let _ = sender.close().await;
   150→                    }
   151→                    break;
   152→                }
   153→            }
   154→        }
   155→    });
   156→
   157→    // Main loop: receive frames from agent and broadcast to viewers
   158→    while let Some(msg) = ws_receiver.next().await {
   159→        match msg {
   160→            Ok(Message::Binary(data)) => {
   161→                // Try to decode as protobuf message
   162→                match proto::Message::decode(data.as_ref()) {
   163→                    Ok(proto_msg) => {
   164→                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
   165→                            // Broadcast frame to all viewers
   166→                            let _ = frame_tx.send(data.to_vec());
   167→                        }
   168→                    }
   169→                    Err(e) => {
   170→                        warn!("Failed to decode agent message: {}", e);
   171→                    }
   172→                }
   173→            }
   174→            Ok(Message::Close(_)) => {
   175→                info!("Agent disconnected: {}", agent_id);
   176→                break;
   177→            }
   178→            Ok(Message::Ping(data)) => {
   179→                // Pong is handled automatically by axum
   180→                let _ = data;
   181→            }
   182→            Ok(_) => {}
   183→            Err(e) => {
   184→                error!("WebSocket error from agent {}: {}", agent_id, e);
   185→                break;
   186→            }
   187→        }
   188→    }
   189→
   190→    // Cleanup
   191→    input_forward.abort();
   192→    cancel_check.abort();
   193→    sessions_cleanup.remove_session(session_id).await;
   194→
   195→    // Mark support code as completed if one was used (unless cancelled)
   196→    if let Some(ref code) = support_code_cleanup {
   197→        if !support_codes_cleanup.is_cancelled(code).await {
   198→            support_codes_cleanup.mark_completed(code).await;
   199→            info!("Support code {} marked as completed", code);
   200→        }
   201→    }
   202→
   203→    info!("Session {} ended", session_id);
   204→}
   205→
   206→/// Handle a viewer WebSocket connection
   207→async fn handle_viewer_connection(
   208→    socket: WebSocket,

    // Use Arc<Mutex> for sender so we can use it from multiple places
    let ws_sender = std::sync::Arc::new(tokio::sync::Mutex::new(ws_sender));
    let ws_sender_input = ws_sender.clone();
    let ws_sender_cancel = ws_sender.clone();

    // Task to forward input events from viewers to agent
    let input_forward = tokio::spawn(async move {
        while let Some(input_data) = input_rx.recv().await {
            let mut sender = ws_sender_input.lock().await;
            if sender.send(Message::Binary(input_data.into())).await.is_err() {
                break;
            }
        }
    });

    let sessions_cleanup = sessions.clone();
    let support_codes_cleanup = support_codes.clone();
    let support_code_cleanup = support_code.clone();
    let support_code_check = support_code.clone();
    let support_codes_check = support_codes.clone();

    // Task to check for cancellation every 2 seconds
    let cancel_check = tokio::spawn(async move {
        let mut interval = tokio::time::interval(std::time::Duration::from_secs(2));
        loop {
            interval.tick().await;
            if let Some(ref code) = support_code_check {
                if support_codes_check.is_cancelled(code).await {
                    info!("Support code {} was cancelled, disconnecting agent", code);
                    // Send disconnect message
                    let disconnect_msg = proto::Message {
                        payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {
                            reason: "Support session was cancelled by technician".to_string(),
                        })),
                    };
                    let mut buf = Vec::new();
                    if prost::Message::encode(&disconnect_msg, &mut buf).is_ok() {
                        let mut sender = ws_sender_cancel.lock().await;
                        let _ = sender.send(Message::Binary(buf.into())).await;
                        let _ = sender.close().await;
                    }
                    break;
                }
            }
        }
    });

    // Main loop: receive frames from agent and broadcast to viewers
    while let Some(msg) = ws_receiver.next().await {
        match msg {
            Ok(Message::Binary(data)) => {
                // Try to decode as protobuf message
                match proto::Message::decode(data.as_ref()) {
                    Ok(proto_msg) => {
                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
                            // Broadcast frame to all viewers
                            let _ = frame_tx.send(data.to_vec());
                        }
                    }
                    Err(e) => {
                        warn!("Failed to decode agent message: {}", e);
                    }
                }
            }
            Ok(Message::Close(_)) => {
                info!("Agent disconnected: {}", agent_id);
                break;
            }
            Ok(Message::Ping(data)) => {
                // Pong is handled automatically by axum
                let _ = data;
            }
            Ok(_) => {}
            Err(e) => {
                error!("WebSocket error from agent {}: {}", agent_id, e);
                break;
            }
        }
    }

    // Cleanup
    input_forward.abort();
    cancel_check.abort();
    sessions_cleanup.remove_session(session_id).await;

    // Mark support code as completed if one was used (unless cancelled)
    if let Some(ref code) = support_code_cleanup {
        if !support_codes_cleanup.is_cancelled(code).await {
            support_codes_cleanup.mark_completed(code).await;
            info!("Support code {} marked as completed", code);
        }
    }

    info!("Session {} ended", session_id);
}

//! WebSocket relay handlers
//!
//! Handles WebSocket connections from agents and viewers,
//! relaying video frames and input events between them.

use axum::{
    extract::{
        ws::{Message, WebSocket, WebSocketUpgrade},
        Query, State,
    },
    response::IntoResponse,
};
use futures_util::{SinkExt, StreamExt};
use prost::Message as ProstMessage;
use serde::Deserialize;
use tracing::{error, info, warn};

use crate::proto;
use crate::session::SessionManager;
use crate::AppState;

#[derive(Debug, Deserialize)]
pub struct AgentParams {
    agent_id: String,
    #[serde(default)]
    agent_name: Option<String>,
    #[serde(default)]
    support_code: Option<String>,
    #[serde(default)]
    hostname: Option<String>,
}

#[derive(Debug, Deserialize)]
pub struct ViewerParams {
    session_id: String,
}

/// WebSocket handler for agent connections
pub async fn agent_ws_handler(
    ws: WebSocketUpgrade,
    State(state): State<AppState>,
    Query(params): Query<AgentParams>,
) -> impl IntoResponse {
    let agent_id = params.agent_id;
    let agent_name = params.hostname.or(params.agent_name).unwrap_or_else(|| agent_id.clone());
    let support_code = params.support_code;
    let sessions = state.sessions.clone();
    let support_codes = state.support_codes.clone();

    ws.on_upgrade(move |socket| handle_agent_connection(socket, sessions, support_codes, agent_id, agent_name, support_code))
}

/// WebSocket handler for viewer connections
pub async fn viewer_ws_handler(
    ws: WebSocketUpgrade,
    State(state): State<AppState>,
    Query(params): Query<ViewerParams>,
) -> impl IntoResponse {
    let session_id = params.session_id;
    let sessions = state.sessions.clone();

    ws.on_upgrade(move |socket| handle_viewer_connection(socket, sessions, session_id))
}

/// Handle an agent WebSocket connection
async fn handle_agent_connection(
    socket: WebSocket,
    sessions: SessionManager,
    support_codes: crate::support_codes::SupportCodeManager,
    agent_id: String,
    agent_name: String,
    support_code: Option<String>,
) {
    info!("Agent connected: {} ({})", agent_name, agent_id);

    let (mut ws_sender, mut ws_receiver) = socket.split();

    // If a support code was provided, check if it's valid
    if let Some(ref code) = support_code {
        // Check if the code is cancelled or invalid
        if support_codes.is_cancelled(code).await {
            warn!("Agent tried to connect with cancelled code: {}", code);
            // Send disconnect message to agent
            let disconnect_msg = proto::Message {
                payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {
                    reason: "Support session was cancelled by technician".to_string(),
                })),
            };
            let mut buf = Vec::new();
            if prost::Message::encode(&disconnect_msg, &mut buf).is_ok() {
                let _ = ws_sender.send(Message::Binary(buf.into())).await;
            }
            let _ = ws_sender.close().await;
            return;
        }
    }

    // Register the agent and get channels
    let (session_id, frame_tx, mut input_rx) = sessions.register_agent(agent_id.clone(), agent_name.clone()).await;

    info!("Session created: {}", session_id);

    // If a support code was provided, mark it as connected
    if let Some(ref code) = support_code {
        info!("Linking support code {} to session {}", code, session_id);
        support_codes.mark_connected(code, Some(agent_name.clone()), Some(agent_id.clone())).await;
        support_codes.link_session(code, session_id).await;
    }

    // Task to forward input events from viewers to agent
    let input_forward = tokio::spawn(async move {
        while let Some(input_data) = input_rx.recv().await {
            if ws_sender.send(Message::Binary(input_data.into())).await.is_err() {
                break;
            }
        }
    });

    let sessions_cleanup = sessions.clone();
    let support_codes_cleanup = support_codes.clone();
    let support_code_cleanup = support_code.clone();

    // Main loop: receive frames from agent and broadcast to viewers
    while let Some(msg) = ws_receiver.next().await {
        match msg {
            Ok(Message::Binary(data)) => {
                // Try to decode as protobuf message
                match proto::Message::decode(data.as_ref()) {
                    Ok(proto_msg) => {
                        if let Some(proto::message::Payload::VideoFrame(_)) = &proto_msg.payload {
                            // Broadcast frame to all viewers
                            let _ = frame_tx.send(data.to_vec());
                        }
                    }
                    Err(e) => {
                        warn!("Failed to decode agent message: {}", e);
                    }
                }
            }
            Ok(Message::Close(_)) => {
                info!("Agent disconnected: {}", agent_id);
                break;
            }
            Ok(Message::Ping(data)) => {
                // Pong is handled automatically by axum
                let _ = data;
            }
            Ok(_) => {}
            Err(e) => {
                error!("WebSocket error from agent {}: {}", agent_id, e);
                break;
            }
        }
    }

    // Cleanup
    input_forward.abort();
    sessions_cleanup.remove_session(session_id).await;

    // Mark support code as completed if one was used
    if let Some(ref code) = support_code_cleanup {
        support_codes_cleanup.mark_completed(code).await;
        info!("Support code {} marked as completed", code);
    }

    info!("Session {} ended", session_id);
}

/// Handle a viewer WebSocket connection
async fn handle_viewer_connection(
    socket: WebSocket,
    sessions: SessionManager,
    session_id_str: String,
) {
    // Parse session ID
    let session_id = match uuid::Uuid::parse_str(&session_id_str) {
        Ok(id) => id,
        Err(_) => {
            warn!("Invalid session ID: {}", session_id_str);
            return;
        }
    };

    // Join the session
    let (mut frame_rx, input_tx) = match sessions.join_session(session_id).await {
        Some(channels) => channels,
        None => {
            warn!("Session not found: {}", session_id);
            return;
        }
    };

    info!("Viewer joined session: {}", session_id);

    let (mut ws_sender, mut ws_receiver) = socket.split();

    // Task to forward frames from agent to this viewer
    let frame_forward = tokio::spawn(async move {
        while let Ok(frame_data) = frame_rx.recv().await {
            if ws_sender.send(Message::Binary(frame_data.into())).await.is_err() {
                break;
            }
        }
    });

    let sessions_cleanup = sessions.clone();

    // Main loop: receive input from viewer and forward to agent
    while let Some(msg) = ws_receiver.next().await {
        match msg {
            Ok(Message::Binary(data)) => {
                // Try to decode as protobuf message
                match proto::Message::decode(data.as_ref()) {
                    Ok(proto_msg) => {
                        match &proto_msg.payload {
                            Some(proto::message::Payload::MouseEvent(_)) |
                            Some(proto::message::Payload::KeyEvent(_)) => {
                                // Forward input to agent
                                let _ = input_tx.send(data.to_vec()).await;
                            }
                            _ => {}
                        }
                    }
                    Err(e) => {
                        warn!("Failed to decode viewer message: {}", e);
                    }
                }
            }
            Ok(Message::Close(_)) => {
                info!("Viewer disconnected from session: {}", session_id);
                break;
            }
            Ok(_) => {}
            Err(e) => {
                error!("WebSocket error from viewer: {}", e);
                break;
            }
        }
    }

    // Cleanup
    frame_forward.abort();
    sessions_cleanup.leave_session(session_id).await;
    info!("Viewer left session: {}", session_id);
}

+    // Use Arc<Mutex> for sender so we can use it from multiple places

+    let ws_sender = std::sync::Arc::new(tokio::sync::Mutex::new(ws_sender));

+    let ws_sender_input = ws_sender.clone();

+    let ws_sender_cancel = ws_sender.clone();

-            if ws_sender.send(Message::Binary(input_data.into())).await.is_err() {

+            let mut sender = ws_sender_input.lock().await;

+            if sender.send(Message::Binary(input_data.into())).await.is_err() {

+    let support_code_check = support_code.clone();

+    let support_codes_check = support_codes.clone();

+    // Task to check for cancellation every 2 seconds

+    let cancel_check = tokio::spawn(async move {

+        let mut interval = tokio::time::interval(std::time::Duration::from_secs(2));

+            if let Some(ref code) = support_code_check {

+                if support_codes_check.is_cancelled(code).await {

+                    info!("Support code {} was cancelled, disconnecting agent", code);

+                    // Send disconnect message

+                    let disconnect_msg = proto::Message {

+                        payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {

+                            reason: "Support session was cancelled by technician".to_string(),

+                    let mut buf = Vec::new();

+                    if prost::Message::encode(&disconnect_msg, &mut buf).is_ok() {

+                        let mut sender = ws_sender_cancel.lock().await;

+                        let _ = sender.send(Message::Binary(buf.into())).await;

+                        let _ = sender.close().await;

-    // Mark support code as completed if one was used

+    // Mark support code as completed if one was used (unless cancelled)

-        support_codes_cleanup.mark_completed(code).await;

-        info!("Support code {} marked as completed", code);

+        if !support_codes_cleanup.is_cancelled(code).await {

+            support_codes_cleanup.mark_completed(code).await;

+            info!("Support code {} marked as completed", code);


Good, now I need to update the agent to handle the Disconnect message with the cancellation reason and display it to the user. Let me also update the todos and then work on the agent.


TodoWrite

Server: Allow cancelling connected codes and disconnect agent

Server: Reject connections with cancelled codes

Agent: Handle session cancelled message gracefully

Deploy and test cancellation flow


Deploy and test cancellation flow

Deploy and test cancellation flow


Conversation compacted


This session is being continued from a previous conversation that ran out of context. The conversation is summarized below:
Analysis:
Let me go through the conversation chronologically to capture all important details:

1. **Initial Context Recovery**: The conversation started with context from a previous session about GuruConnect - a ScreenConnect replacement. Key infrastructure was already in place: build server at 172.16.3.30, portal at connect.azcomputerguru.com, agent connecting via WebSocket.

2. **Support Codes to Sessions Linking**: The user wanted to connect support codes to agent sessions. I implemented:
   - Server accepting `support_code` param in WebSocket connection
   - Agent extracting code from command line argument
   - Server linking code to session, marking as connected/completed

3. **User Feedback - Critical**: User said "Flow Step 4 - This violates the principals we set out in the beginning of the project, it MUST be impossible for the end-user to mess it up." The command-line argument approach was rejected because users can't be expected to pass arguments.

4. **Solution - Filename Extraction**: I implemented extracting the support code from the executable filename (e.g., `GuruConnect-123456.exe`). The agent reads its own filename to get the code.

5. **Testing Issues**: During testing, the server wasn't linking codes because the wrong binary was running. The systemd service was pointing to `/home/guru/guru-connect/target/release/guruconnect-server` but the new build was at `/home/guru/guru-connect/target/x86_64-unknown-linux-gnu/release/guruconnect-server`.

6. **Successful Test**: After fixing the binary path, the flow worked:
   - Code 701610 was created as "pending"
   - User renamed agent to include the code
   - Agent connected and sent the code
   - Server linked code to session
   - Status changed to "connected" with hostname (ACG-M-L5090)

7. **Dashboard Auto-refresh**: User noted dashboard should update without manual refreshes. I added auto-refresh every 3 seconds.

8. **Cancellation Flow**: User asked what happens when cancelling a code. Current behavior only cancelled pending codes. User requirements:
   - If connected while cancelled → disconnect agent, agent should exit
   - If not connected → agent should sense cancellation on connect, notify user, exit

9. **Current Work - Cancellation Implementation**: I was in the middle of implementing:
   - Server: Allow cancelling connected codes (done)
   - Server: Reject connections with cancelled codes (done)
   - Server: Periodic cancellation check during session (done)
   - Agent: Handle session cancelled message (in progress, not started yet)

Key files modified:
- `server/src/support_codes.rs` - Added `is_cancelled()`, `is_valid_for_connection()`, updated `cancel_code()`
- `server/src/relay/mod.rs` - Added cancellation check on connect, periodic cancellation check during session
- `agent/src/main.rs` - Added `extract_code_from_filename()` function
- `agent/src/config.rs` - Added `support_code` field
- `agent/src/transport/websocket.rs` - Added hostname and support_code params
- `server/static/dashboard.html` - Added auto-refresh, client info display, Join button
- `server/static/index.html` - Updated download flow

Errors encountered:
- Wrong binary path in systemd service
- "Text file busy" when copying binary while service running

Summary:
1. Primary Request and Intent:
   - Connect support codes to agent sessions so technicians can see when customers connect
   - Make the flow foolproof - user must only download and double-click (NO command line arguments)
   - Dashboard should auto-refresh without manual page reloads
   - Implement cancellation flow: if code is cancelled while connected, disconnect agent; if cancelled before connect, reject and notify user

2. Key Technical Concepts:
   - WebSocket query parameters for passing agent_id, hostname, support_code
   - Extracting support code from executable filename (e.g., `GuruConnect-123456.exe`)
   - Server-side session management with support code linking
   - Periodic cancellation checking using tokio tasks with intervals
   - Arc<Mutex> for sharing WebSocket sender across async tasks
   - Protobuf Disconnect message for notifying agent of cancellation

3. Files and Code Sections:

   - **server/src/support_codes.rs** - Manages support codes lifecycle
     - Added cancellation checking methods:
     ```rust
     /// Cancel a code (works for both pending and connected)
     pub async fn cancel_code(&self, code: &str) -> bool {
         let mut codes = self.codes.write().await;
         if let Some(support_code) = codes.get_mut(code) {
             if support_code.status == CodeStatus::Pending || support_code.status == CodeStatus::Connected {
                 support_code.status = CodeStatus::Cancelled;
                 return true;
             }
         }
         false
     }

     /// Check if a code is cancelled
     pub async fn is_cancelled(&self, code: &str) -> bool {
         let codes = self.codes.read().await;
         codes.get(code).map(|c| c.status == CodeStatus::Cancelled).unwrap_or(false)
     }
     ```

   - **server/src/relay/mod.rs** - WebSocket relay handlers
     - Added cancellation check on connect:
     ```rust
     if let Some(ref code) = support_code {
         if support_codes.is_cancelled(code).await {
             warn!("Agent tried to connect with cancelled code: {}", code);
             let disconnect_msg = proto::Message {
                 payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {
                     reason: "Support session was cancelled by technician".to_string(),
                 })),
             };
             // ... send message and close
             return;
         }
     }
     ```
     - Added periodic cancellation check task (every 2 seconds):
     ```rust
     let cancel_check = tokio::spawn(async move {
         let mut interval = tokio::time::interval(std::time::Duration::from_secs(2));
         loop {
             interval.tick().await;
             if let Some(ref code) = support_code_check {
                 if support_codes_check.is_cancelled(code).await {
                     info!("Support code {} was cancelled, disconnecting agent", code);
                     // Send disconnect message and close
                 }
             }
         }
     });
     ```

   - **agent/src/main.rs** - Agent entry point
     - Added filename-based code extraction:
     ```rust
     fn extract_code_from_filename() -> Option<String> {
         let exe_path = std::env::current_exe().ok()?;
         let filename = exe_path.file_stem()?.to_str()?;

         // Look for 6-digit number in filename
         for part in filename.split(|c| c == '-' || c == '_' || c == '.') {
             let trimmed = part.trim();
             if trimmed.len() == 6 && trimmed.chars().all(|c| c.is_ascii_digit()) {
                 return Some(trimmed.to_string());
             }
         }
         // Also check last 6 characters
         if filename.len() >= 6 {
             let last_six = &filename[filename.len() - 6..];
             if last_six.chars().all(|c| c.is_ascii_digit()) {
                 return Some(last_six.to_string());
             }
         }
         None
     }
     ```

   - **agent/src/config.rs** - Added `support_code: Option<String>` field with `#[serde(skip)]`

   - **agent/src/transport/websocket.rs** - Updated connect signature:
     ```rust
     pub async fn connect(
         url: &str,
         agent_id: &str,
         api_key: &str,
         hostname: Option<&str>,
         support_code: Option<&str>,
     ) -> Result<Self>
     ```

   - **server/static/dashboard.html** - Auto-refresh and enhanced UI:
     ```javascript
     // Initial load and auto-refresh every 3 seconds
     loadSessions();
     setInterval(loadSessions, 3000);
     ```

   - **TODO.md** - Feature tracking document created with comprehensive feature list

4. Errors and fixes:
   - **Wrong binary path in systemd service**: Service was using `/home/guru/guru-connect/target/release/guruconnect-server` but new builds went to `/home/guru/guru-connect/target/x86_64-unknown-linux-gnu/release/guruconnect-server`. Fixed by copying the correct binary to the expected location.
   - **"Text file busy" error**: Couldn't copy binary while service was running. Fixed by stopping service first, then copying, then restarting.
   - **User rejected command-line argument approach**: User said passing CLI args violates the "impossible to mess up" principle. Pivoted to extracting code from filename instead.

5. Problem Solving:
   - Solved support code linking by passing code in WebSocket query params
   - Solved zero-user-input requirement by extracting code from executable filename
   - Solved dashboard refresh by adding setInterval for auto-refresh
   - In progress: Implementing full cancellation flow with agent notification

6. All user messages:
   - "agent running"
   - "Sessions are all empty"
   - User shared ScreenConnect screenshots showing their Support session UI for reference
   - "connect support codes to sessions - and let's make sure we're keeping a log/list of features to be added/implemented."
   - "Flow Step 4 - This violates the principals we set out in the beginning of the project, it MUST be impossible for the end-user to mess it up. We can barely get them to simply run an executable, if we had to explain how to add flags or run options, we'll never get them to connect properly."
   - "yes test it"
   - "I'm running it on this machine, so you should also be able to see it/ access the logs for it"
   - (User shared agent logs showing successful code extraction: "Support code from filename: 569726")
   - "It does, after refresh. I think it needs to update without refreshes."
   - "When I cancel a code, what happens?"
   - "If connected while cancelled - client should end/uninstall for Temp sessions. If not connected, agent should sense the cancellation on connect, notify user session was cancelled, end/uninstall."

7. Pending Tasks:
   - Agent: Handle session cancelled message gracefully (show notification to user, exit cleanly)
   - Deploy and test full cancellation flow
   - Build and deploy updated agent with cancellation handling

8. Current Work:
   I was implementing the cancellation flow. Server-side changes are complete:
   - `cancel_code()` now works for both pending and connected codes
   - Added `is_cancelled()` method
   - Relay checks for cancelled codes on connection and rejects them
   - Relay has periodic task checking for cancellation during session

   The TODO list shows:
   - [completed] Server: Allow cancelling connected codes and disconnect agent
   - [completed] Server: Reject connections with cancelled codes
   - [in_progress] Agent: Handle session cancelled message gracefully
   - [pending] Deploy and test cancellation flow

9. Optional Next Step:
   Update the agent to handle the Disconnect message with cancellation reason. The agent needs to:
   1. Parse the Disconnect message from the server
   2. Display a notification to the user (e.g., "Support session was cancelled by technician")
   3. Exit cleanly (for temp sessions, this means just closing - no actual uninstall needed since it's just an .exe)

   Direct quote from user: "If connected while cancelled - client should end/uninstall for Temp sessions. If not connected, agent should sense the cancellation on connect, notify user session was cancelled, end/uninstall."

   The server changes have been made but NOT yet deployed. Need to:
   1. Commit server changes
   2. Update agent to handle Disconnect message with user notification
   3. Build and deploy both
   4. Test the cancellation flow.
Please continue the conversation from where we left it off without asking the user any further questions. Continue with the last task that you were asked to work on.


Looking at the summary, I was in the middle of implementing the cancellation flow. The server-side changes are complete:
1. Server: Allow cancelling connected codes and disconnect agent - DONE
2. Server: Reject connections with cancelled codes - DONE

The next task is:
3. Agent: Handle session cancelled message gracefully - IN PROGRESS (not started yet)

The agent needs to:
1. Parse the Disconnect message from the server (it already does this in session/mod.rs)
2. Display a notification to the user
3. Exit cleanly

Looking at the agent's session/mod.rs, I can see it already handles the Disconnect message at line 203-206:
```rust
Some(message::Payload::Disconnect(disc)) => {
    tracing::info!("Disconnect requested: {}", disc.reason);
    return Err(anyhow::anyhow!("Disconnect: {}", disc.reason));
}
```

So the agent already handles the Disconnect message - it logs it and returns an error. But the user wants:
1. A notification shown to the user (not just logs)
2. The agent to exit cleanly (not reconnect)

Looking at main.rs, I can see the main loop reconnects after any error:
```rust
loop {
    // ... connect and run ...
    info!("Reconnecting in 5 seconds...");
    tokio::time::sleep(tokio::time::Duration::from_secs(5)).await;
}
```

So I need to:
1. Have the session manager detect when it's a "cancelled" disconnect vs other disconnects
2. Show a message box to the user (on Windows this would be a MessageBox)
3. Exit cleanly without reconnecting

Let me check if there's a way to show a message box on Windows. I should look at what dependencies are available.

For Windows, I can use the `windows` crate or `winapi` to call MessageBoxW.

I'll investigate the project's dependencies to find the best approach for displaying a notification. Checking the Cargo.toml will help me understand what tools are already available for cross-platform messaging.


Continuing with the cancellation flow implementation. The server-side changes are complete - now I need to update the agent to handle the Disconnect message properly: show a notification to the user and exit cleanly (not reconnect).

Let me check the agent's dependencies and then implement the user notification:


     1→[package]
     2→name = "guruconnect-agent"
     3→version = "0.1.0"
     4→edition = "2021"
     5→authors = ["AZ Computer Guru"]
     6→description = "GuruConnect Remote Desktop Agent"
     7→
     8→[dependencies]
     9→# Async runtime
    10→tokio = { version = "1", features = ["full", "sync", "time", "rt-multi-thread", "macros"] }
    11→
    12→# WebSocket
    13→tokio-tungstenite = { version = "0.24", features = ["native-tls"] }
    14→futures-util = "0.3"
    15→
    16→# Compression
    17→zstd = "0.13"
    18→
    19→# Protocol (protobuf)
    20→prost = "0.13"
    21→prost-types = "0.13"
    22→bytes = "1"
    23→
    24→# Serialization
    25→serde = { version = "1", features = ["derive"] }
    26→serde_json = "1"
    27→
    28→# Logging
    29→tracing = "0.1"
    30→tracing-subscriber = { version = "0.3", features = ["env-filter"] }
    31→
    32→# Error handling
    33→anyhow = "1"
    34→thiserror = "1"
    35→
    36→# Configuration
    37→toml = "0.8"
    38→
    39→# Crypto
    40→ring = "0.17"
    41→
    42→# UUID
    43→uuid = { version = "1", features = ["v4", "serde"] }
    44→
    45→# Time
    46→chrono = { version = "0.4", features = ["serde"] }
    47→
    48→# Hostname
    49→hostname = "0.4"
    50→
    51→# URL encoding
    52→urlencoding = "2"
    53→
    54→[target.'cfg(windows)'.dependencies]
    55→# Windows APIs for screen capture and input
    56→windows = { version = "0.58", features = [
    57→    "Win32_Foundation",
    58→    "Win32_Graphics_Gdi",
    59→    "Win32_Graphics_Dxgi",
    60→    "Win32_Graphics_Dxgi_Common",
    61→    "Win32_Graphics_Direct3D",
    62→    "Win32_Graphics_Direct3D11",
    63→    "Win32_UI_Input_KeyboardAndMouse",
    64→    "Win32_UI_WindowsAndMessaging",
    65→    "Win32_System_LibraryLoader",
    66→    "Win32_System_Threading",
    67→    "Win32_Security",
    68→]}
    69→
    70→# Windows service support
    71→windows-service = "0.7"
    72→
    73→[build-dependencies]
    74→prost-build = "0.13"
    75→
    76→[profile.release]
    77→lto = true
    78→codegen-units = 1
    79→opt-level = "z"
    80→strip = true
    81→panic = "abort"
    82→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

[package]
name = "guruconnect-agent"
version = "0.1.0"
edition = "2021"
authors = ["AZ Computer Guru"]
description = "GuruConnect Remote Desktop Agent"

[dependencies]
# Async runtime
tokio = { version = "1", features = ["full", "sync", "time", "rt-multi-thread", "macros"] }

# WebSocket
tokio-tungstenite = { version = "0.24", features = ["native-tls"] }
futures-util = "0.3"

# Compression
zstd = "0.13"

# Protocol (protobuf)
prost = "0.13"
prost-types = "0.13"
bytes = "1"

# Serialization
serde = { version = "1", features = ["derive"] }
serde_json = "1"

# Logging
tracing = "0.1"
tracing-subscriber = { version = "0.3", features = ["env-filter"] }

# Error handling
anyhow = "1"
thiserror = "1"

# Configuration
toml = "0.8"

# Crypto
ring = "0.17"

# UUID
uuid = { version = "1", features = ["v4", "serde"] }

# Time
chrono = { version = "0.4", features = ["serde"] }

# Hostname
hostname = "0.4"

# URL encoding
urlencoding = "2"

[target.'cfg(windows)'.dependencies]
# Windows APIs for screen capture and input
windows = { version = "0.58", features = [
    "Win32_Foundation",
    "Win32_Graphics_Gdi",
    "Win32_Graphics_Dxgi",
    "Win32_Graphics_Dxgi_Common",
    "Win32_Graphics_Direct3D",
    "Win32_Graphics_Direct3D11",
    "Win32_UI_Input_KeyboardAndMouse",
    "Win32_UI_WindowsAndMessaging",
    "Win32_System_LibraryLoader",
    "Win32_System_Threading",
    "Win32_Security",
]}

# Windows service support
windows-service = "0.7"

[build-dependencies]
prost-build = "0.13"

[profile.release]
lto = true
codegen-units = 1
opt-level = "z"
strip = true
panic = "abort"


The Windows crate is already included with `Win32_UI_WindowsAndMessaging` feature - that's what I need for MessageBoxW. Now I need to:

1. Update the agent's session manager to return a specific error type for cancellation (so we can distinguish it from other errors)
2. In main.rs, detect cancellation and show a message box
3. Exit without reconnecting

Let me implement this. I'll:
1. Create a custom error type or use a specific pattern to detect cancellation
2. Add a function to show a Windows message box
3. Update the main loop to exit on cancellation

Let me first look at how the session handles the disconnect and where the error surfaces.


The Windows crate is already included with `Win32_UI_WindowsAndMessaging` which includes MessageBoxW. I'll update the agent to:
1. Detect cancellation disconnects
2. Show a user-friendly message box
3. Exit cleanly (no reconnect)

Let me update the session manager to return a specific error for cancellation:


Edit

            Some(message::Payload::Disconnect(disc)) => {
                tracing::info!("Disconnect requested: {}", disc.reason);
                return Err(anyhow::anyhow!("Disconnect: {}", disc.reason));
            }

            Some(message::Payload::Disconnect(disc)) => {
                tracing::info!("Disconnect requested: {}", disc.reason);
                // Check if this is a cancellation
                if disc.reason.contains("cancelled") {
                    return Err(anyhow::anyhow!("SESSION_CANCELLED: {}", disc.reason));
                }
                return Err(anyhow::anyhow!("Disconnect: {}", disc.reason));
            }