   630→        }
   631→
   632→        function joinSession(sessionId) {
   633→            // TODO: Open viewer in new window
   634→            alert("Viewer not yet implemented.\\n\\nSession ID: " + sessionId + "\\n\\nWebSocket: wss://connect.azcomputerguru.com/ws/viewer?session_id=" + sessionId);
   635→        }
   636→
   637→        // Initial load and auto-refresh every 3 seconds
   638→        loadSessions();
   639→        setInterval(loadSessions, 3000);
   640→
   641→        // Load connected machines (Access tab)
   642→        let machines = [];
   643→        let selectedMachine = null;
   644→
   645→        async function loadMachines() {
   646→            try {
   647→                const response = await fetch("/api/sessions");
   648→                machines = await response.json();
   649→
   650→                // Update counts
   651→                document.getElementById("countAll").textContent = machines.length;
   652→                document.getElementById("countOnline").textContent = machines.length;
   653→                document.getElementById("countOffline").textContent = "0";
   654→
   655→                renderMachinesList();
   656→            } catch (err) {
   657→                console.error("Failed to load machines:", err);
   658→            }
   659→        }

<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>

        }

        function joinSession(sessionId) {
            // TODO: Open viewer in new window
            alert("Viewer not yet implemented.\\n\\nSession ID: " + sessionId + "\\n\\nWebSocket: wss://connect.azcomputerguru.com/ws/viewer?session_id=" + sessionId);
        }

        // Initial load and auto-refresh every 3 seconds
        loadSessions();
        setInterval(loadSessions, 3000);

        // Load connected machines (Access tab)
        let machines = [];
        let selectedMachine = null;

        async function loadMachines() {
            try {
                const response = await fetch("/api/sessions");
                machines = await response.json();

                // Update counts
                document.getElementById("countAll").textContent = machines.length;
                document.getElementById("countOnline").textContent = machines.length;
                document.getElementById("countOffline").textContent = "0";

                renderMachinesList();
            } catch (err) {
                console.error("Failed to load machines:", err);
            }
        }


Found it. Now let me also find connectToMachine function.


   715→                '</div>';
   716→        }
   717→
   718→        function connectToMachine(sessionId) {
   719→            // TODO: Open viewer in new window
   720→            alert("Viewer not yet implemented.\\n\\nSession ID: " + sessionId + "\\n\\nWebSocket: wss://connect.azcomputerguru.com/ws/viewer?session_id=" + sessionId);
   721→        }
   722→
   723→        async function disconnectMachine(sessionId, machineName) {
   724→            if (!confirm("Disconnect " + machineName + "?\\n\\nThis will end the remote session.")) return;
   725→            try {
   726→                const response = await fetch("/api/sessions/" + sessionId, { method: "DELETE" });
   727→                if (response.ok) {
   728→                    selectedMachine = null;
   729→                    renderMachineDetail();

<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>

                '</div>';
        }

        function connectToMachine(sessionId) {
            // TODO: Open viewer in new window
            alert("Viewer not yet implemented.\\n\\nSession ID: " + sessionId + "\\n\\nWebSocket: wss://connect.azcomputerguru.com/ws/viewer?session_id=" + sessionId);
        }

        async function disconnectMachine(sessionId, machineName) {
            if (!confirm("Disconnect " + machineName + "?\\n\\nThis will end the remote session.")) return;
            try {
                const response = await fetch("/api/sessions/" + sessionId, { method: "DELETE" });
                if (response.ok) {
                    selectedMachine = null;
                    renderMachineDetail();


Now I can update both functions to open the viewer.


Edit

        function joinSession(sessionId) {
            // TODO: Open viewer in new window
            alert("Viewer not yet implemented.\\n\\nSession ID: " + sessionId + "\\n\\nWebSocket: wss://connect.azcomputerguru.com/ws/viewer?session_id=" + sessionId);
        }

        function joinSession(sessionId) {
            // Open viewer in new window
            const viewerUrl = "/viewer.html?session_id=" + sessionId;
            window.open(viewerUrl, "viewer_" + sessionId, "width=1280,height=800,menubar=no,toolbar=no,location=no,status=no");
        }


The file C:\Users\MikeSwanson\Claude\guru-connect\server\static\dashboard.html has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   628→                alert("Error cancelling code");
   629→            }
   630→        }
   631→
   632→        function joinSession(sessionId) {
   633→            // Open viewer in new window
   634→            const viewerUrl = "/viewer.html?session_id=" + sessionId;
   635→            window.open(viewerUrl, "viewer_" + sessionId, "width=1280,height=800,menubar=no,toolbar=no,location=no,status=no");
   636→        }
   637→
   638→        // Initial load and auto-refresh every 3 seconds
   639→        loadSessions();
   640→        setInterval(loadSessions, 3000);

        function joinSession(sessionId) {
            // TODO: Open viewer in new window
            alert("Viewer not yet implemented.\\n\\nSession ID: " + sessionId + "\\n\\nWebSocket: wss://connect.azcomputerguru.com/ws/viewer?session_id=" + sessionId);
        }

        function joinSession(sessionId) {
            // Open viewer in new window
            const viewerUrl = "/viewer.html?session_id=" + sessionId;
            window.open(viewerUrl, "viewer_" + sessionId, "width=1280,height=800,menubar=no,toolbar=no,location=no,status=no");
        }

<!DOCTYPE html>

    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>GuruConnect - Dashboard</title>

GuruConnect

            Loading...
            <button class="logout-btn" id="logoutBtn">Sign Out</button>

        <button class="tab active" data-tab="support">Support</button>
        <button class="tab" data-tab="access">Access</button>
        <button class="tab" data-tab="build">Build</button>
        <button class="tab" data-tab="settings">Settings</button>

Active Support Sessions

Temporary sessions initiated by support codes

                    <button class="btn btn-primary" id="generateCodeBtn">Generate Code</button>

                                Code
                                Status
                                Created
                                Technician
                                Actions

No active sessions

Generate a code to start a support session

Status

                            All Machines
                            0

                            Online
                            0

                            Offline
                            0

By Company

No machines installed

No machines

Install the agent on a machine to see it here

Select a machine

Click a machine to view details

Installer Builder

Create customized agent installers for unattended access

                        Name
                        <input type="text" id="buildName" placeholder="Machine name (auto if blank)">

                        Company
                        <input type="text" id="buildCompany" placeholder="Client organization">

                        Site
                        <input type="text" id="buildSite" placeholder="Physical location">

                        Department
                        <input type="text" id="buildDepartment" placeholder="Business unit">

                        Device Type
                        <select id="buildDeviceType">
                            <option value="workstation">Workstation</option>
                            <option value="laptop">Laptop</option>
                            <option value="server">Server</option>
                        </select>

                        Tag
                        <input type="text" id="buildTag" placeholder="Custom label">

                    <button class="btn btn-primary" disabled>Build EXE (64-bit)</button>
                    <button class="btn btn-outline" disabled>Build EXE (32-bit)</button>
                    <button class="btn btn-outline" disabled>Build MSI</button>

                    Agent builds will be available once the agent is compiled.

Settings

Configure your GuruConnect preferences

                        Theme
                        <select disabled>
                            <option>Dark (Default)</option>
                            <option>Light</option>
                            <option>System</option>
                        </select>

                        Notifications
                        <select disabled>
                            <option>All notifications</option>
                            <option>Important only</option>
                            <option>None</option>
                        </select>

                    Additional settings coming soon.

Chat with Client

                <button class="modal-close" id="chatClose">×</button>

No messages yet. Start the conversation!

                <input type="text" class="chat-input" id="chatInput" placeholder="Type a message..." />
                <button class="chat-send" id="chatSend">Send</button>

-            // TODO: Open viewer in new window

-            alert("Viewer not yet implemented.\\n\\nSession ID: " + sessionId + "\\n\\nWebSocket: wss://connect.azcomputerguru.com/ws/viewer?session_id=" + sessionId);

+            // Open viewer in new window

+            const viewerUrl = "/viewer.html?session_id=" + sessionId;

+            window.open(viewerUrl, "viewer_" + sessionId, "width=1280,height=800,menubar=no,toolbar=no,location=no,status=no");


        function connectToMachine(sessionId) {
            // TODO: Open viewer in new window
            alert("Viewer not yet implemented.\\n\\nSession ID: " + sessionId + "\\n\\nWebSocket: wss://connect.azcomputerguru.com/ws/viewer?session_id=" + sessionId);
        }

        function connectToMachine(sessionId) {
            // Open viewer in new window
            const viewerUrl = "/viewer.html?session_id=" + sessionId;
            window.open(viewerUrl, "viewer_" + sessionId, "width=1280,height=800,menubar=no,toolbar=no,location=no,status=no");
        }


The file C:\Users\MikeSwanson\Claude\guru-connect\server\static\dashboard.html has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   715→                    '<button class="btn btn-outline" style="width: 100%; color: hsl(0, 62.8%, 50%);" onclick="disconnectMachine(\'' + m.id + '\', \'' + (m.agent_name || m.agent_id).replace(/'/g, "\\'") + '\')">Disconnect</button>' +
   716→                '</div>';
   717→        }
   718→
   719→        function connectToMachine(sessionId) {
   720→            // Open viewer in new window
   721→            const viewerUrl = "/viewer.html?session_id=" + sessionId;
   722→            window.open(viewerUrl, "viewer_" + sessionId, "width=1280,height=800,menubar=no,toolbar=no,location=no,status=no");
   723→        }
   724→
   725→        async function disconnectMachine(sessionId, machineName) {
   726→            if (!confirm("Disconnect " + machineName + "?\\n\\nThis will end the remote session.")) return;
   727→            try {

        function connectToMachine(sessionId) {
            // TODO: Open viewer in new window
            alert("Viewer not yet implemented.\\n\\nSession ID: " + sessionId + "\\n\\nWebSocket: wss://connect.azcomputerguru.com/ws/viewer?session_id=" + sessionId);
        }

        function connectToMachine(sessionId) {
            // Open viewer in new window
            const viewerUrl = "/viewer.html?session_id=" + sessionId;
            window.open(viewerUrl, "viewer_" + sessionId, "width=1280,height=800,menubar=no,toolbar=no,location=no,status=no");
        }


Now I need to deploy the changes to the server. Let me commit and push.


Now let me commit and deploy:


Bash

cd /c/Users/MikeSwanson/Claude/guru-connect && git add -A && git commit -m "$(cat <<'EOF'
Add remote desktop viewer

- Create viewer.html with canvas-based video display
- Implement protobuf parsing for VideoFrame/RawFrame
- Add zstd decompression using fzstd library
- Convert BGRA to RGBA for canvas rendering
- Add mouse event capture and encoding
- Add keyboard event capture and encoding
- Add Ctrl+Alt+Del special key support
- Add fullscreen toggle
- Update dashboard to open viewer in new window
- Auto-reconnect on connection loss

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

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

Commit viewer implementation


[main 3c2e070] Add remote desktop viewer
 2 files changed, 690 insertions(+), 4 deletions(-)
 create mode 100644 server/static/viewer.html
warning: in the working copy of 'server/static/viewer.html', LF will be replaced by CRLF the next time Git touches it


cd /c/Users/MikeSwanson/Claude/guru-connect && git push origin main

Push to origin


remote: . Processing 1 references
remote: Processed 1 references in total
To https://git.azcomputerguru.com/azcomputerguru/guru-connect.git
   cc35d11..3c2e070  main -> main


Now deploy to server. The static files should be picked up automatically, but let me make sure the server is synced.


ssh guru@172.16.3.30 bash << 'ENDSSH'
export PATH=/usr/bin:/bin:/usr/local/bin
cd ~/guru-connect
git pull

# Just update static files - no rebuild needed
echo "Static files updated"
ls -la server/static/viewer.html
ENDSSH

Pull viewer to server


Updating cc35d11..3c2e070
Fast-forward
 server/static/dashboard.html |  10 +-
 server/static/viewer.html    | 684 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 690 insertions(+), 4 deletions(-)
 create mode 100644 server/static/viewer.html
Static files updated
-rw-rw-r-- 1 guru guru 23099 Dec 29 00:40 server/static/viewer.html
From https://git.azcomputerguru.com/azcomputerguru/guru-connect
   cc35d11..3c2e070  main       -> origin/main


/s


The viewer is deployed. Now the user can test it! Let me update the todos.


TodoWrite

Create viewer.html with canvas and toolbar

Implement WebSocket connection and protobuf parsing

Implement zstd decompression and canvas rendering

Add mouse and keyboard event capture/encoding

Update dashboard to open viewer

Test with live agent


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

Create viewer.html with canvas and toolbar

Implement WebSocket connection and protobuf parsing

Implement zstd decompression and canvas rendering

Add mouse and keyboard event capture/encoding

Update dashboard to open viewer

Test with live agent

Update dashboard to open viewer

Test with live agent


The user wants to save the session. Let me invoke the /s skill.


Launching skill: s


Save a COMPREHENSIVE session log to session-logs/ directory. This is critical for context recovery.

## Filename
Use format `session-logs/YYYY-MM-DD-session.md` (today's date)

## If file exists
Append a new section with timestamp header (## Update: HH:MM), don't overwrite

## MANDATORY Content to Include

### 1. Session Summary
- What was accomplished in this session
- Key decisions made and rationale
- Problems encountered and how they were solved

### 2. ALL Credentials & Secrets (UNREDACTED)
**CRITICAL: Store credentials completely - these are needed for future sessions**
- API keys and tokens (full values)
- Usernames and passwords
- Database credentials
- JWT secrets
- SSH keys/passphrases if relevant
- Any authentication information used or discovered

Format credentials as:
```
### Credentials
- Service Name: username / password
- API Token: full_token_value
```

### 3. Infrastructure & Servers
- All IPs, hostnames, ports used
- Container names and configurations
- DNS records added or modified
- SSL certificates created
- Any network/firewall changes

### 4. Commands & Outputs
- Important commands run (especially complex ones)
- Key outputs and results
- Error messages and their resolutions

### 5. Configuration Changes
- Files created or modified (with paths)
- Settings changed
- Environment variables set

### 6. Pending/Incomplete Tasks
- What still needs to be done
- Blockers or issues awaiting resolution
- Next steps for future sessions

### 7. Reference Information
- URLs, endpoints, ports
- File paths that may be needed again
- Any technical details that might be forgotten

## After Saving
1. Commit with message: "Session log: [brief description of work done]"
2. Push to gitea remote
3. Confirm push was successful

## Purpose
This log MUST contain enough detail to fully restore context if this conversation is summarized or a new session starts. When in doubt, include MORE information rather than less. Future Claude instances will search these logs to find credentials and context.


The user wants me to save a comprehensive session log. Let me read the current session log first and then append to it.


   730→1. **Full Viewer Implementation** - Video display, not just WebSocket URL
   731→2. **File Transfer** - Transfer Files button disabled
   732→3. **Proper Authentication** - Replace "dev-key" placeholder
   733→4. **Heartbeat Mechanism** - Optional: detect zombie connections
   734→5. **Chat Reply from Client** - Client needs UI to send messages back
   735→

<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>

1. **Full Viewer Implementation** - Video display, not just WebSocket URL
2. **File Transfer** - Transfer Files button disabled
3. **Proper Authentication** - Replace "dev-key" placeholder
4. **Heartbeat Mechanism** - Optional: detect zombie connections
5. **Chat Reply from Client** - Client needs UI to send messages back


Good, I can see where the last update ended. Now let me append a new section with all the work done in this session.


Edit

1. **Full Viewer Implementation** - Video display, not just WebSocket URL
2. **File Transfer** - Transfer Files button disabled
3. **Proper Authentication** - Replace "dev-key" placeholder
4. **Heartbeat Mechanism** - Optional: detect zombie connections
5. **Chat Reply from Client** - Client needs UI to send messages back

1. ~~**Full Viewer Implementation**~~ - COMPLETED in this session!
2. **File Transfer** - Transfer Files button disabled
3. **Proper Authentication** - Replace "dev-key" placeholder
4. ~~**Heartbeat Mechanism**~~ - COMPLETED in this session!
5. **Chat Reply from Client** - Client needs UI to send messages back

---

## Update: 00:45 (Idle/Active Mode & Viewer Implementation)

### Session Summary

This session implemented two major features for GuruConnect:

1. **Idle/Active Mode** - Agents now connect in idle mode and only start streaming when a viewer connects. This allows thousands of agents to be connected with minimal bandwidth.

2. **Remote Desktop Viewer** - Full canvas-based viewer that displays video frames from agents and sends mouse/keyboard input.

### Work Completed

#### 1. Idle/Active Mode for Scalable Connections

**Problem:** Original design had agents streaming video immediately upon connection. With 2000 agents, this would be impossible to handle.

**Solution:** Implemented idle/active state machine:
- Agent connects → enters **idle mode** (heartbeat every 30s, status every 60s)
- Viewer connects → server sends `StartStream` → agent enters **streaming mode**
- Viewer disconnects → server sends `StopStream` → agent returns to **idle mode**
- Resources (capturer, encoder) only allocated when streaming

**Protocol Changes (proto/guruconnect.proto):**
```protobuf
message StartStream {
    string viewer_id = 1;
    int32 display_id = 2;
}

message StopStream {
    string viewer_id = 1;
}

message AgentStatus {
    string hostname = 1;
    string os_version = 2;
    bool is_elevated = 3;
    int64 uptime_secs = 4;
    int32 display_count = 5;
    bool is_streaming = 6;
}
```

**Bandwidth Comparison (2000 agents):**
| Metric | Before | After |
|--------|--------|-------|
| Agent bandwidth (idle) | 100+ KB/sec | ~100 bytes/min |
| Server incoming | Impossible | ~3 KB/sec heartbeats |
| CPU per agent (idle) | 5-15% | Near 0% |

#### 2. Remote Desktop Viewer

Created full-featured viewer at `server/static/viewer.html`:
- Canvas-based video display
- Protobuf parsing for VideoFrame/RawFrame
- Zstd decompression using fzstd library
- BGRA to RGBA conversion for canvas
- Mouse event capture (move, click, wheel)
- Keyboard event capture
- Ctrl+Alt+Del special key support
- Fullscreen toggle
- Auto-reconnect on connection loss
- FPS/resolution stats display

**Dashboard Integration:**
- `joinSession()` now opens viewer in new window
- `connectToMachine()` now opens viewer in new window

### Files Created/Modified

#### New Files
- `server/static/viewer.html` - Full viewer implementation (684 lines)

#### Modified Files
- `proto/guruconnect.proto` - Added StartStream, StopStream, AgentStatus messages
- `agent/src/session/mod.rs` - Idle/active state machine, lazy resource allocation
- `agent/src/main.rs` - Pass is_elevated to SessionManager
- `server/src/session/mod.rs` - Viewer tracking, start/stop stream, heartbeat timeout
- `server/src/relay/mod.rs` - Handle AgentStatus, Heartbeat messages
- `server/src/api/mod.rs` - Added is_streaming, last_heartbeat, etc. to API response
- `server/static/dashboard.html` - Open viewer instead of alert

### Key Code Sections

#### Agent State Machine (agent/src/session/mod.rs)
```rust
enum SessionState {
    Disconnected,
    Connecting,
    Idle,       // Connected but not streaming
    Streaming,  // Actively capturing and sending frames
}

// Only allocate resources when streaming
fn init_streaming(&mut self) -> Result<()> {
    let capturer = capture::create_capturer(...);
    let encoder = encoder::create_encoder(...);
    let input = InputController::new()?;
    // ...
}

fn release_streaming(&mut self) {
    self.capturer = None;
    self.encoder = None;
    self.input = None;
}
```

#### Server Viewer Tracking (server/src/session/mod.rs)
```rust
pub async fn join_session(&self, session_id: SessionId, viewer_id: ViewerId) {
    let was_empty = session_data.viewers.is_empty();
    session_data.viewers.insert(viewer_id.clone());

    // If first viewer, send StartStream to agent
    if was_empty {
        Self::send_start_stream_internal(session_data, &viewer_id).await;
    }
}

pub async fn leave_session(&self, session_id: SessionId, viewer_id: &ViewerId) {
    session_data.viewers.remove(viewer_id);

    // If no more viewers, send StopStream
    if session_data.viewers.is_empty() {
        Self::send_stop_stream_internal(session_data, viewer_id).await;
    }
}
```

#### Viewer Protobuf Parsing (viewer.html)
```javascript
function parseVideoFrame(data) {
    // Parse Message wrapper → VideoFrame → RawFrame
    // Extract width, height, compressed data
    return { width, height, compressedData, isKeyframe };
}

function renderFrame(frame) {
    const decompressed = fzstd.decompress(frame.compressedData);
    // Convert BGRA to RGBA
    for (let i = 0; i < decompressed.length; i += 4) {
        pixels[i] = decompressed[i + 2];     // R <- B
        pixels[i + 2] = decompressed[i];     // B <- R
    }
    ctx.putImageData(imageData, 0, 0);
}
```

### Git Commits This Session
```
4417fdf Implement idle/active mode for scalable agent connections
cc35d11 Fix: use Self:: for static method calls
3c2e070 Add remote desktop viewer
```

### Testing Performed

**Agent ACG-TECH-01L connected and tested:**
```
00:28:52 - Agent connected (idle mode)
00:28:52 - Agent status: streaming=false, uptime=0s
00:29:13 - Viewer joined → StartStream sent
00:29:16 - Chat test sent
00:29:20 - Viewer disconnected → StopStream sent
00:29:52 - Agent status: streaming=false, uptime=60s
```

All transitions working correctly:
- ✓ Agent starts in idle mode
- ✓ StartStream sent when viewer connects
- ✓ StopStream sent when viewer disconnects
- ✓ Agent returns to idle mode

### Credentials (No Changes)

### Build Server (172.16.3.30)
- **User:** guru
- **Password:** Gptf*77ttb123!@#-rmm
- **SSH:** Key-based auth works

### GuruConnect Server
- **Internal URL:** http://172.16.3.30:3002
- **External URL:** https://connect.azcomputerguru.com
- **API Key (default):** dev-key

---

## URLs Reference

| URL | Purpose |
|-----|---------|
| https://connect.azcomputerguru.com/ | Customer portal |
| https://connect.azcomputerguru.com/login | Technician login |
| https://connect.azcomputerguru.com/dashboard | Technician dashboard |
| https://connect.azcomputerguru.com/viewer.html?session_id=XXX | Remote viewer |
| https://connect.azcomputerguru.com/GuruConnect.exe | Agent download (8.2 MB) |
| wss://connect.azcomputerguru.com/ws/agent | Agent WebSocket |
| wss://connect.azcomputerguru.com/ws/viewer | Viewer WebSocket |

---

## Pending Tasks

1. **Test Viewer** - User has ACG-TECH-01L connected, ready for live testing
2. **File Transfer** - Transfer Files button disabled
3. **Proper Authentication** - Replace "dev-key" placeholder
4. **Dirty Rectangle Optimization** - Currently rendering full frames
5. **VP9/H264 Codec Support** - Only raw+zstd implemented
6. **Multi-Display Support** - UI exists but not wired
7. **Clipboard Sync** - Not implemented

---

## Next Steps

1. Open dashboard, go to Access tab, click Connect on ACG-TECH-01L
2. Viewer should open and display remote desktop
3. Test mouse movement, clicking, keyboard input
4. Verify agent CPU usage changes between idle and streaming


The file C:\Users\MikeSwanson\Claude\session-logs\2025-12-28-session.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   726→---
   727→
   728→## Pending Tasks
   729→
   730→1. ~~**Full Viewer Implementation**~~ - COMPLETED in this session!
   731→2. **File Transfer** - Transfer Files button disabled
   732→3. **Proper Authentication** - Replace "dev-key" placeholder
   733→4. ~~**Heartbeat Mechanism**~~ - COMPLETED in this session!
   734→5. **Chat Reply from Client** - Client needs UI to send messages back
   735→
   736→---
   737→
   738→## Update: 00:45 (Idle/Active Mode & Viewer Implementation)
   739→
   740→### Session Summary
   741→
   742→This session implemented two major features for GuruConnect:
   743→
   744→1. **Idle/Active Mode** - Agents now connect in idle mode and only start streaming when a viewer connects. This allows thousands of agents to be connected with minimal bandwidth.
   745→
   746→2. **Remote Desktop Viewer** - Full canvas-based viewer that displays video frames from agents and sends mouse/keyboard input.
   747→
   748→### Work Completed
   749→
   750→#### 1. Idle/Active Mode for Scalable Connections
   751→
   752→**Problem:** Original design had agents streaming video immediately upon connection. With 2000 agents, this would be impossible to handle.
   753→
   754→**Solution:** Implemented idle/active state machine:
   755→- Agent connects → enters **idle mode** (heartbeat every 30s, status every 60s)
   756→- Viewer connects → server sends `StartStream` → agent enters **streaming mode**
   757→- Viewer disconnects → server sends `StopStream` → agent returns to **idle mode**
   758→- Resources (capturer, encoder) only allocated when streaming
   759→
   760→**Protocol Changes (proto/guruconnect.proto):**
   761→```protobuf
   762→message StartStream {
   763→    string viewer_id = 1;
   764→    int32 display_id = 2;
   765→}
   766→
   767→message StopStream {
   768→    string viewer_id = 1;
   769→}
   770→
   771→message AgentStatus {
   772→    string hostname = 1;
   773→    string os_version = 2;
   774→    bool is_elevated = 3;
   775→    int64 uptime_secs = 4;
   776→    int32 display_count = 5;
   777→    bool is_streaming = 6;
   778→}
   779→```
   780→
   781→**Bandwidth Comparison (2000 agents):**
   782→| Metric | Before | After |
   783→|--------|--------|-------|
   784→| Agent bandwidth (idle) | 100+ KB/sec | ~100 bytes/min |
   785→| Server incoming | Impossible | ~3 KB/sec heartbeats |
   786→| CPU per agent (idle) | 5-15% | Near 0% |
   787→
   788→#### 2. Remote Desktop Viewer
   789→
   790→Created full-featured viewer at `server/static/viewer.html`:
   791→- Canvas-based video display
   792→- Protobuf parsing for VideoFrame/RawFrame
   793→- Zstd decompression using fzstd library
   794→- BGRA to RGBA conversion for canvas
   795→- Mouse event capture (move, click, wheel)
   796→- Keyboard event capture
   797→- Ctrl+Alt+Del special key support
   798→- Fullscreen toggle
   799→- Auto-reconnect on connection loss
   800→- FPS/resolution stats display
   801→
   802→**Dashboard Integration:**
   803→- `joinSession()` now opens viewer in new window
   804→- `connectToMachine()` now opens viewer in new window
   805→
   806→### Files Created/Modified
   807→
   808→#### New Files
   809→- `server/static/viewer.html` - Full viewer implementation (684 lines)
   810→
   811→#### Modified Files
   812→- `proto/guruconnect.proto` - Added StartStream, StopStream, AgentStatus messages
   813→- `agent/src/session/mod.rs` - Idle/active state machine, lazy resource allocation
   814→- `agent/src/main.rs` - Pass is_elevated to SessionManager
   815→- `server/src/session/mod.rs` - Viewer tracking, start/stop stream, heartbeat timeout
   816→- `server/src/relay/mod.rs` - Handle AgentStatus, Heartbeat messages
   817→- `server/src/api/mod.rs` - Added is_streaming, last_heartbeat, etc. to API response
   818→- `server/static/dashboard.html` - Open viewer instead of alert
   819→
   820→### Key Code Sections
   821→
   822→#### Agent State Machine (agent/src/session/mod.rs)
   823→```rust
   824→enum SessionState {
   825→    Disconnected,
   826→    Connecting,
   827→    Idle,       // Connected but not streaming
   828→    Streaming,  // Actively capturing and sending frames
   829→}
   830→
   831→// Only allocate resources when streaming
   832→fn init_streaming(&mut self) -> Result<()> {
   833→    let capturer = capture::create_capturer(...);
   834→    let encoder = encoder::create_encoder(...);
   835→    let input = InputController::new()?;
   836→    // ...
   837→}
   838→
   839→fn release_streaming(&mut self) {
   840→    self.capturer = None;
   841→    self.encoder = None;
   842→    self.input = None;
   843→}
   844→```
   845→
   846→#### Server Viewer Tracking (server/src/session/mod.rs)
   847→```rust
   848→pub async fn join_session(&self, session_id: SessionId, viewer_id: ViewerId) {
   849→    let was_empty = session_data.viewers.is_empty();
   850→    session_data.viewers.insert(viewer_id.clone());
   851→
   852→    // If first viewer, send StartStream to agent
   853→    if was_empty {
   854→        Self::send_start_stream_internal(session_data, &viewer_id).await;
   855→    }
   856→}
   857→
   858→pub async fn leave_session(&self, session_id: SessionId, viewer_id: &ViewerId) {
   859→    session_data.viewers.remove(viewer_id);
   860→
   861→    // If no more viewers, send StopStream
   862→    if session_data.viewers.is_empty() {
   863→        Self::send_stop_stream_internal(session_data, viewer_id).await;
   864→    }
   865→}
   866→```
   867→
   868→#### Viewer Protobuf Parsing (viewer.html)
   869→```javascript
   870→function parseVideoFrame(data) {
   871→    // Parse Message wrapper → VideoFrame → RawFrame
   872→    // Extract width, height, compressed data
   873→    return { width, height, compressedData, isKeyframe };
   874→}
   875→
   876→function renderFrame(frame) {
   877→    const decompressed = fzstd.decompress(frame.compressedData);
   878→    // Convert BGRA to RGBA
   879→    for (let i = 0; i < decompressed.length; i += 4) {
   880→        pixels[i] = decompressed[i + 2];     // R <- B
   881→        pixels[i + 2] = decompressed[i];     // B <- R
   882→    }
   883→    ctx.putImageData(imageData, 0, 0);
   884→}
   885→```
   886→
   887→### Git Commits This Session
   888→```
   889→4417fdf Implement idle/active mode for scalable agent connections
   890→cc35d11 Fix: use Self:: for static method calls
   891→3c2e070 Add remote desktop viewer
   892→```
   893→
   894→### Testing Performed
   895→
   896→**Agent ACG-TECH-01L connected and tested:**
   897→```
   898→00:28:52 - Agent connected (idle mode)
   899→00:28:52 - Agent status: streaming=false, uptime=0s
   900→00:29:13 - Viewer joined → StartStream sent
   901→00:29:16 - Chat test sent
   902→00:29:20 - Viewer disconnected → StopStream sent
   903→00:29:52 - Agent status: streaming=false, uptime=60s
   904→```
   905→
   906→All transitions working correctly:
   907→- ✓ Agent starts in idle mode
   908→- ✓ StartStream sent when viewer connects
   909→- ✓ StopStream sent when viewer disconnects
   910→- ✓ Agent returns to idle mode
   911→
   912→### Credentials (No Changes)
   913→
   914→### Build Server (172.16.3.30)
   915→- **User:** guru
   916→- **Password:** Gptf*77ttb123!@#-rmm
   917→- **SSH:** Key-based auth works
   918→
   919→### GuruConnect Server
   920→- **Internal URL:** http://172.16.3.30:3002
   921→- **External URL:** https://connect.azcomputerguru.com
   922→- **API Key (default):** dev-key
   923→
   924→---
   925→
   926→## URLs Reference
   927→
   928→| URL | Purpose |
   929→|-----|---------|
   930→| https://connect.azcomputerguru.com/ | Customer portal |
   931→| https://connect.azcomputerguru.com/login | Technician login |
   932→| https://connect.azcomputerguru.com/dashboard | Technician dashboard |
   933→| https://connect.azcomputerguru.com/viewer.html?session_id=XXX | Remote viewer |
   934→| https://connect.azcomputerguru.com/GuruConnect.exe | Agent download (8.2 MB) |
   935→| wss://connect.azcomputerguru.com/ws/agent | Agent WebSocket |
   936→| wss://connect.azcomputerguru.com/ws/viewer | Viewer WebSocket |
   937→
   938→---
   939→
   940→## Pending Tasks
   941→
   942→1. **Test Viewer** - User has ACG-TECH-01L connected, ready for live testing
   943→2. **File Transfer** - Transfer Files button disabled
   944→3. **Proper Authentication** - Replace "dev-key" placeholder
   945→4. **Dirty Rectangle Optimization** - Currently rendering full frames
   946→5. **VP9/H264 Codec Support** - Only raw+zstd implemented
   947→6. **Multi-Display Support** - UI exists but not wired
   948→7. **Clipboard Sync** - Not implemented
   949→
   950→---
   951→
   952→## Next Steps
   953→
   954→1. Open dashboard, go to Access tab, click Connect on ACG-TECH-01L
   955→2. Viewer should open and display remote desktop
   956→3. Test mouse movement, clicking, keyboard input
   957→4. Verify agent CPU usage changes between idle and streaming
   958→

1. ~~**Full Viewer Implementation**~~ - COMPLETED in this session!
2. **File Transfer** - Transfer Files button disabled
3. **Proper Authentication** - Replace "dev-key" placeholder
4. ~~**Heartbeat Mechanism**~~ - COMPLETED in this session!
5. **Chat Reply from Client** - Client needs UI to send messages back

---

## Update: 00:45 (Idle/Active Mode & Viewer Implementation)

### Session Summary

This session implemented two major features for GuruConnect:

1. **Idle/Active Mode** - Agents now connect in idle mode and only start streaming when a viewer connects. This allows thousands of agents to be connected with minimal bandwidth.

2. **Remote Desktop Viewer** - Full canvas-based viewer that displays video frames from agents and sends mouse/keyboard input.

### Work Completed

#### 1. Idle/Active Mode for Scalable Connections

**Problem:** Original design had agents streaming video immediately upon connection. With 2000 agents, this would be impossible to handle.

**Solution:** Implemented idle/active state machine:
- Agent connects → enters **idle mode** (heartbeat every 30s, status every 60s)
- Viewer connects → server sends `StartStream` → agent enters **streaming mode**
- Viewer disconnects → server sends `StopStream` → agent returns to **idle mode**
- Resources (capturer, encoder) only allocated when streaming

**Protocol Changes (proto/guruconnect.proto):**
```protobuf
message StartStream {
    string viewer_id = 1;
    int32 display_id = 2;
}

message StopStream {
    string viewer_id = 1;
}

message AgentStatus {
    string hostname = 1;
    string os_version = 2;
    bool is_elevated = 3;
    int64 uptime_secs = 4;
    int32 display_count = 5;
    bool is_streaming = 6;
}
```

**Bandwidth Comparison (2000 agents):**
| Metric | Before | After |
|--------|--------|-------|
| Agent bandwidth (idle) | 100+ KB/sec | ~100 bytes/min |
| Server incoming | Impossible | ~3 KB/sec heartbeats |
| CPU per agent (idle) | 5-15% | Near 0% |

#### 2. Remote Desktop Viewer

Created full-featured viewer at `server/static/viewer.html`:
- Canvas-based video display
- Protobuf parsing for VideoFrame/RawFrame
- Zstd decompression using fzstd library
- BGRA to RGBA conversion for canvas
- Mouse event capture (move, click, wheel)
- Keyboard event capture
- Ctrl+Alt+Del special key support
- Fullscreen toggle
- Auto-reconnect on connection loss
- FPS/resolution stats display

**Dashboard Integration:**
- `joinSession()` now opens viewer in new window
- `connectToMachine()` now opens viewer in new window

### Files Created/Modified

#### New Files
- `server/static/viewer.html` - Full viewer implementation (684 lines)

#### Modified Files
- `proto/guruconnect.proto` - Added StartStream, StopStream, AgentStatus messages
- `agent/src/session/mod.rs` - Idle/active state machine, lazy resource allocation
- `agent/src/main.rs` - Pass is_elevated to SessionManager
- `server/src/session/mod.rs` - Viewer tracking, start/stop stream, heartbeat timeout
- `server/src/relay/mod.rs` - Handle AgentStatus, Heartbeat messages
- `server/src/api/mod.rs` - Added is_streaming, last_heartbeat, etc. to API response
- `server/static/dashboard.html` - Open viewer instead of alert

### Key Code Sections

#### Agent State Machine (agent/src/session/mod.rs)
```rust
enum SessionState {
    Disconnected,
    Connecting,
    Idle,       // Connected but not streaming
    Streaming,  // Actively capturing and sending frames
}

// Only allocate resources when streaming
fn init_streaming(&mut self) -> Result<()> {
    let capturer = capture::create_capturer(...);
    let encoder = encoder::create_encoder(...);
    let input = InputController::new()?;
    // ...
}

fn release_streaming(&mut self) {
    self.capturer = None;
    self.encoder = None;
    self.input = None;
}
```

#### Server Viewer Tracking (server/src/session/mod.rs)
```rust
pub async fn join_session(&self, session_id: SessionId, viewer_id: ViewerId) {
    let was_empty = session_data.viewers.is_empty();
    session_data.viewers.insert(viewer_id.clone());

    // If first viewer, send StartStream to agent
    if was_empty {
        Self::send_start_stream_internal(session_data, &viewer_id).await;
    }
}

pub async fn leave_session(&self, session_id: SessionId, viewer_id: &ViewerId) {
    session_data.viewers.remove(viewer_id);

    // If no more viewers, send StopStream
    if session_data.viewers.is_empty() {
        Self::send_stop_stream_internal(session_data, viewer_id).await;
    }
}
```

#### Viewer Protobuf Parsing (viewer.html)
```javascript
function parseVideoFrame(data) {
    // Parse Message wrapper → VideoFrame → RawFrame
    // Extract width, height, compressed data
    return { width, height, compressedData, isKeyframe };
}

function renderFrame(frame) {
    const decompressed = fzstd.decompress(frame.compressedData);
    // Convert BGRA to RGBA
    for (let i = 0; i < decompressed.length; i += 4) {
        pixels[i] = decompressed[i + 2];     // R <- B
        pixels[i + 2] = decompressed[i];     // B <- R
    }
    ctx.putImageData(imageData, 0, 0);
}
```

### Git Commits This Session
```
4417fdf Implement idle/active mode for scalable agent connections
cc35d11 Fix: use Self:: for static method calls
3c2e070 Add remote desktop viewer
```

### Testing Performed

**Agent ACG-TECH-01L connected and tested:**
```
00:28:52 - Agent connected (idle mode)
00:28:52 - Agent status: streaming=false, uptime=0s
00:29:13 - Viewer joined → StartStream sent
00:29:16 - Chat test sent
00:29:20 - Viewer disconnected → StopStream sent
00:29:52 - Agent status: streaming=false, uptime=60s
```

All transitions working correctly:
- ✓ Agent starts in idle mode
- ✓ StartStream sent when viewer connects
- ✓ StopStream sent when viewer disconnects
- ✓ Agent returns to idle mode

### Credentials (No Changes)

### Build Server (172.16.3.30)
- **User:** guru
- **Password:** Gptf*77ttb123!@#-rmm
- **SSH:** Key-based auth works

### GuruConnect Server
- **Internal URL:** http://172.16.3.30:3002
- **External URL:** https://connect.azcomputerguru.com
- **API Key (default):** dev-key

---

## URLs Reference

| URL | Purpose |
|-----|---------|
| https://connect.azcomputerguru.com/ | Customer portal |
| https://connect.azcomputerguru.com/login | Technician login |
| https://connect.azcomputerguru.com/dashboard | Technician dashboard |
| https://connect.azcomputerguru.com/viewer.html?session_id=XXX | Remote viewer |
| https://connect.azcomputerguru.com/GuruConnect.exe | Agent download (8.2 MB) |
| wss://connect.azcomputerguru.com/ws/agent | Agent WebSocket |
| wss://connect.azcomputerguru.com/ws/viewer | Viewer WebSocket |

---

## Pending Tasks

1. **Test Viewer** - User has ACG-TECH-01L connected, ready for live testing
2. **File Transfer** - Transfer Files button disabled
3. **Proper Authentication** - Replace "dev-key" placeholder
4. **Dirty Rectangle Optimization** - Currently rendering full frames
5. **VP9/H264 Codec Support** - Only raw+zstd implemented
6. **Multi-Display Support** - UI exists but not wired
7. **Clipboard Sync** - Not implemented

---

## Next Steps

1. Open dashboard, go to Access tab, click Connect on ACG-TECH-01L
2. Viewer should open and display remote desktop
3. Test mouse movement, clicking, keyboard input
4. Verify agent CPU usage changes between idle and streaming

# Session Log: 2025-12-28

## Session Summary

### Work Completed

1. **GuruConnect Cross-Compilation Setup**
   - Configured build server (172.16.3.30) for Windows cross-compilation using MinGW
   - Added x86_64-pc-windows-gnu target to rustup
   - Configured .cargo/config.toml with MinGW linker settings

2. **Fixed Windows Crate 0.58 API Compatibility Issues**
   - XBUTTON1/XBUTTON2 constants (no longer exported, defined manually)
   - D3D11 API changes (GetDesc returns value, CreateTexture2D signature change)
   - D3D11_CPU_ACCESS_FLAG type changes
   - SetEvictionPriority takes enum directly
   - BitBlt/EnumDisplayMonitors return type changes
   - encode_utf16 iterator handling
   - Borrow conflicts in session loop
   - Variable naming conflicts with tracing macros (renamed `display` to `target_display`)

3. **Built GuruConnect Binaries**
   - Server (Linux): 3.6 MB - `guruconnect-server`
   - Agent (Windows): 7.2 MB - `guruconnect-agent.exe`

4. **Deployed GuruConnect Server**
   - Running on build server (172.16.3.30:3002)
   - Proxied via NPM at https://connect.azcomputerguru.com
   - Static files served including web UI

5. **Set Production URL as Default**
   - Changed agent default from `wss://localhost:3002/ws` to `wss://connect.azcomputerguru.com/ws/agent`
   - Rebuilt agent with URL baked in

6. **Set Up Agent Download**
   - Agent downloadable at: https://connect.azcomputerguru.com/guruconnect-agent.exe

---

## Credentials

### Build Server (172.16.3.30)
- **User:** guru
- **Password:** Gptf*77ttb123!@#-rmm
- **SSH:** Key-based auth from WSL

### GuruConnect Server
- **Internal URL:** http://172.16.3.30:3002
- **External URL:** https://connect.azcomputerguru.com
- **API Key (default):** dev-key

---

## Infrastructure

### GuruConnect Architecture
```
Dashboard (Browser) ◄──WSS──► Server (172.16.3.30:3002) ◄──WSS──► Agent (Windows)
                              proxied via NPM
                              https://connect.azcomputerguru.com
```

### Server Locations
| Component | Location |
|-----------|----------|
| Server binary | `guru@172.16.3.30:~/guruconnect-server/guruconnect-server` |
| Agent binary | `guru@172.16.3.30:~/guruconnect-server/guruconnect-agent.exe` |
| Static files | `guru@172.16.3.30:~/guruconnect-server/static/` |
| Logs | `guru@172.16.3.30:~/guruconnect-server/guruconnect.log` |
| Source | `guru@172.16.3.30:~/guru-connect/` |

### URLs
| URL | Purpose |
|-----|---------|
| https://connect.azcomputerguru.com | Main entry (support code page) |
| https://connect.azcomputerguru.com/login.html | Technician login |
| https://connect.azcomputerguru.com/dashboard.html | Technician dashboard |
| https://connect.azcomputerguru.com/guruconnect-agent.exe | Agent download |
| wss://connect.azcomputerguru.com/ws/agent | Agent WebSocket endpoint |
| wss://connect.azcomputerguru.com/ws/viewer | Viewer WebSocket endpoint |

---

## Configuration Changes

### Files Modified

1. **agent/src/input/mouse.rs**
   - Defined XBUTTON1/XBUTTON2 constants manually

2. **agent/src/capture/dxgi.rs**
   - Fixed GetDesc API (returns value now)
   - Fixed CreateTexture2D signature (output param)
   - Fixed CPUAccessFlags (u32, not flag wrapper)
   - Fixed SetEvictionPriority (takes enum directly)
   - Renamed `display` param to `target_display`

3. **agent/src/capture/gdi.rs**
   - Fixed BitBlt return type handling
   - Removed unused Context import

4. **agent/src/capture/display.rs**
   - Fixed EnumDisplayMonitors return type

5. **agent/src/input/keyboard.rs**
   - Fixed encode_utf16 iteration

6. **agent/src/session/mod.rs**
   - Refactored to avoid borrow conflicts
   - Renamed `display` to `primary_display`

7. **agent/src/transport/websocket.rs**
   - Fixed borrow conflict in receive loop

8. **agent/src/config.rs**
   - Changed default server URL to `wss://connect.azcomputerguru.com/ws/agent`

### Cargo Config (.cargo/config.toml on build server)
```toml
[target.x86_64-pc-windows-gnu]
linker = "x86_64-w64-mingw32-gcc"
ar = "x86_64-w64-mingw32-ar"

[target.i686-pc-windows-gnu]
linker = "i686-w64-mingw32-gcc"
ar = "i686-w64-mingw32-ar"

[alias]
win64 = "build --release --target x86_64-pc-windows-gnu"
linux = "build --release --target x86_64-unknown-linux-gnu"
```

---

## Commands Reference

### Build Commands
```bash
# Build Linux server
cargo build -p guruconnect-server --release --target x86_64-unknown-linux-gnu

# Cross-compile Windows agent
cargo build -p guruconnect-agent --release --target x86_64-pc-windows-gnu
```

### Start Server
```bash
cd ~/guruconnect-server
RUST_LOG=info nohup ./guruconnect-server > guruconnect.log 2>&1 &
```

### Check Server Status
```bash
ps aux | grep guruconnect-server
cat ~/guruconnect-server/guruconnect.log
```

---

## Problems Encountered & Solutions

### 1. Windows Crate 0.58 Breaking Changes
- **Problem:** Many API changes from earlier versions
- **Solution:** Updated all affected files to match new API signatures

### 2. Tracing Macro Variable Collision
- **Problem:** Variable named `display` conflicted with tracing's `display` function
- **Solution:** Renamed variables to `target_display` or `primary_display`

### 3. Borrow Checker Issues
- **Problem:** Holding mutable borrow across async boundaries
- **Solution:** Restructured code to release borrows before calling methods on self

### 4. No Sudo Access on Build Server
- **Problem:** Couldn't install to /opt or create systemd service
- **Solution:** Deployed to home directory, running as user process

---

## Pending Tasks

1. **Server Persistence** - Currently running via nohup, will stop on reboot
   - Options: crontab @reboot, user systemd service, or get sudo access

2. **Test Agent on Windows** - Download and run agent to test full flow

3. **Authentication** - Currently using placeholder "dev-key" for API auth

4. **Integration with GuruRMM** - Dashboard components ready but not integrated

---

## Git Commits This Session

```
7c16b2b Set production server URL as default
d14fa58 Fix transport variable reference
d2c8cf1 Fix remaining API issues and borrow conflicts
b1de7be Fix more Windows crate 0.58 API changes
582387f Merge branch 'main' of gitea
09223cf Fix Windows crate 0.58 API compatibility
```

---

## Next Steps

1. Test agent on a Windows machine
2. Set up server persistence (survives reboot)
3. Implement proper authentication
4. Integrate viewer into GuruRMM dashboard

---

## Update: 19:15 (Windows Workstation Session)

### Work Completed

1. **Firewall & Infrastructure**
   - Opened UFW port 3002 on build server
   - Created systemd service (`guruconnect.service`) for auto-start
   - Service enabled and running

2. **Root SSH Access Configured**
   - Added claude-code SSH key to root@172.16.3.30
   - Enables passwordless admin access for future tasks
   - Key: `ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIABnQjolTxDtfqOwdDjamK1oyFPiQnaNT/tAgsIHH1Zo claude-code`

3. **Technician Login & Dashboard Pages**
   - Added `/login` page with dark theme
   - Added `/dashboard` with 4 tabs: Support, Access, Build, Settings
   - Added clean URL routes (no .html extension needed)
   - Added "Technician Login" link to portal footer
   - Dashboard functional for code generation/management

### Systemd Service
```ini
# /etc/systemd/system/guruconnect.service
[Unit]
Description=GuruConnect Server
After=network.target

[Service]
Type=simple
User=guru
Group=guru
WorkingDirectory=/home/guru/guru-connect/server
ExecStart=/home/guru/guru-connect/target/release/guruconnect-server
Restart=always
RestartSec=5
Environment=RUST_LOG=info

[Install]
WantedBy=multi-user.target
```

### URLs Now Available
| URL | Purpose |
|-----|---------|
| https://connect.azcomputerguru.com/ | Customer portal (code entry) |
| https://connect.azcomputerguru.com/login | Technician login |
| https://connect.azcomputerguru.com/dashboard | Technician dashboard |

### Files Modified
- server/src/main.rs (added /login and /dashboard routes)
- server/static/login.html (new)
- server/static/dashboard.html (new)
- server/static/index.html (added login link)

### Git Commits
```
3f1fd8f Add technician login and dashboard pages
```

---

## Update: 23:15 (Continued Session - Major Agent Features)

### Work Completed

1. **Support Code to Session Linking**
   - Agent extracts 6-digit code from executable filename (e.g., `GuruConnect-123456.exe`)
   - Server links support codes to WebSocket sessions
   - Dashboard auto-refreshes every 3 seconds to show connected clients
   - Client machine name displayed when connected

2. **Cancellation Flow Implementation**
   - Server: Cancelling a code (even if connected) sends Disconnect message to agent
   - Server: Periodic cancellation check every 2 seconds during active session
   - Server: Rejects connections with already-cancelled codes
   - Agent: Handles Disconnect message with "cancelled" reason
   - Agent: Shows Windows MessageBox notification to user
   - Agent: Exits cleanly without reconnecting for support sessions

3. **System Tray Icon**
   - Green circle tray icon when connected
   - Menu shows: Session code, Machine name, "End Session"
   - Windows message queue pumping for event handling
   - Clicking "End Session" cleanly terminates the agent

4. **UAC Elevation Support**
   - Windows manifest requesting `highestAvailable` privileges
   - Embedded via winres crate in build.rs
   - `is_elevated()` function to detect admin status
   - Logs elevation status on startup

5. **Startup Persistence**
   - Agent adds itself to `HKCU\Software\Microsoft\Windows\CurrentVersion\Run`
   - Persists through reboots until session ends
   - Removed from startup on session end (cancel, user exit, or completion)

6. **Chat System (In Progress)**
   - Added ChatMessage to protobuf (id, sender, content, timestamp)
   - Server relays chat between agent and viewer
   - Agent chat module created (shows messages via MessageBox)
   - Chat controller with command/message channels

### Files Created/Modified

#### New Files
- `agent/src/tray/mod.rs` - System tray icon and menu
- `agent/src/startup.rs` - Windows registry startup persistence
- `agent/src/chat/mod.rs` - Chat window controller
- `agent/guruconnect.manifest` - Windows UAC manifest

#### Modified Files
- `agent/Cargo.toml` - Added tray-icon, muda, winres, image crates
- `agent/build.rs` - Embed manifest via winres
- `agent/src/main.rs` - Integrated tray, chat, startup, elevation detection
- `agent/src/session/mod.rs` - Chat message handling, tray event processing
- `server/src/relay/mod.rs` - Chat relay, cancellation checks
- `server/src/support_codes.rs` - Cancel connected codes, is_cancelled check
- `proto/guruconnect.proto` - Added ChatMessage type

### Key Code Sections

#### Filename Code Extraction (agent/src/main.rs)
```rust
fn extract_code_from_filename() -> Option<String> {
    let exe_path = std::env::current_exe().ok()?;
    let filename = exe_path.file_stem()?.to_str()?;
    for part in filename.split(|c| c == '-' || c == '_' || c == '.') {
        if part.len() == 6 && part.chars().all(|c| c.is_ascii_digit()) {
            return Some(part.to_string());
        }
    }
    None
}
```

#### Windows Message Pumping (agent/src/tray/mod.rs)
```rust
#[cfg(windows)]
fn pump_windows_messages() {
    unsafe {
        let mut msg = MSG::default();
        while PeekMessageW(&mut msg, None, 0, 0, PM_REMOVE).as_bool() {
            let _ = TranslateMessage(&msg);
            DispatchMessageW(&msg);
        }
    }
}
```

#### Cancellation Check Loop (server/src/relay/mod.rs)
```rust
let cancel_check = tokio::spawn(async move {
    let mut interval = tokio::time::interval(Duration::from_secs(2));
    loop {
        interval.tick().await;
        if support_codes_check.is_cancelled(&code).await {
            // Send disconnect message and close connection
        }
    }
});
```

### Git Commits This Update
```
8246d13 Add cancellation flow for support sessions
dea96bd Add system tray icon with menu for agent
c57429f Fix tray icon event handling on Windows
43f15b0 Add UAC elevation support with manifest
0dcbae6 Add startup persistence for support sessions
[pending] Chat functionality commits
```

### Pending Tasks

1. **Chat Functionality (In Progress)**
   - Agent chat built, needs testing
   - Dashboard chat interface not yet implemented
   - Need to add chat UI to dashboard.html

2. **Dashboard Chat Interface**
   - Add chat panel to viewer
   - Send/receive chat messages via WebSocket

3. **Test Full Flow**
   - Test chat with connected agent
   - Verify all features work together

### Server Deployment Notes

**Important:** After server changes, deploy with:
```bash
ssh guru@172.16.3.30 "kill \$(pgrep -f guruconnect-server); sleep 2"
ssh guru@172.16.3.30 "rm -f ~/guru-connect/target/release/guruconnect-server"
ssh guru@172.16.3.30 "cp ~/guru-connect/target/x86_64-unknown-linux-gnu/release/guruconnect-server ~/guru-connect/target/release/"
ssh guru@172.16.3.30 "cd ~/guru-connect && nohup ./target/release/guruconnect-server > server.log 2>&1 &"
```

The systemd service path was incorrect - server expects to be run from `~/guru-connect` directory for static file serving.

### Current Agent Binary Location
- Windows: `C:\Users\MikeSwanson\Claude\guru-connect\target\x86_64-pc-windows-msvc\release\guruconnect-agent.exe`
- For distribution: Copy to `guru@172.16.3.30:~/guru-connect/server/static/GuruConnect.exe`

---

## Update: 23:57 (Chat & Disconnect Features Complete)

### Work Completed

1. **Dashboard Chat Interface**
   - Added chat modal with message history
   - Styled chat messages (technician=blue/right, client=gray/left)
   - WebSocket connection to viewer endpoint
   - Simplified protobuf encoder/decoder in JavaScript
   - Chat button added to both Support (connected sessions) and Access tabs

2. **Persistent Session Disconnect/Uninstall**
   - Server: Added `DELETE /api/sessions/:id` endpoint
   - Server: `SessionManager.disconnect_session()` sends Disconnect message via WebSocket
   - Agent: Handles `ADMIN_DISCONNECT` to trigger uninstall
   - Agent: `startup::uninstall()` removes from startup registry and schedules exe deletion
   - Dashboard: Red "Disconnect" button in Access tab machine details
   - Confirmation dialog before disconnecting

3. **Fixed Static File Serving**
   - Server was looking for `static/` relative to working directory
   - Created symlink: `~/guru-connect/static` -> `server/static`
   - Dashboard now accessible at https://connect.azcomputerguru.com/dashboard

### Files Created/Modified

#### Server
- `server/src/main.rs` - Added DELETE /api/sessions/:id route and handler
- `server/src/session/mod.rs` - Added `disconnect_session()` method

#### Agent
- `agent/Cargo.toml` - Added `Win32_Storage_FileSystem` feature
- `agent/src/startup.rs` - Added `uninstall()` function with MoveFileExW
- `agent/src/session/mod.rs` - Handle ADMIN_DISCONNECT in Disconnect payload
- `agent/src/main.rs` - Call uninstall and show message on admin disconnect

#### Dashboard
- `server/static/dashboard.html` - Complete chat modal, disconnect button, chat buttons

### Key Code Sections

#### Uninstall Function (agent/src/startup.rs)
```rust
pub fn uninstall() -> Result<()> {
    // Remove from startup registry
    let _ = remove_from_startup();

    // Schedule exe for deletion on reboot
    let exe_path = std::env::current_exe()?;
    unsafe {
        MoveFileExW(
            PCWSTR(exe_wide.as_ptr()),
            PCWSTR::null(),
            MOVEFILE_DELAY_UNTIL_REBOOT,
        );
    }
    Ok(())
}
```

#### Disconnect Session (server/src/session/mod.rs)
```rust
pub async fn disconnect_session(&self, session_id: SessionId, reason: &str) -> bool {
    if let Some(session_data) = sessions.get(&session_id) {
        let disconnect_msg = proto::Message {
            payload: Some(proto::message::Payload::Disconnect(proto::Disconnect {
                reason: reason.to_string(),
            })),
        };
        // Send via input channel to agent
        session_data.input_tx.send(buf).await.is_ok()
    }
}
```

#### Chat Protobuf Encoding (dashboard.html)
```javascript
function encodeChatMessage(msg) {
    // ChatMessage: id(1), sender(2), content(3), timestamp(4)
    // Wrapped in Message with payload field 60
    const fieldTag = (60 << 3) | 2;
    wrapper.push((fieldTag & 0x7f) | 0x80);
    wrapper.push(fieldTag >> 7);
    // ... encode ChatMessage fields
}
```

### Git Commits This Update
```
aa03a87 Add chat functionality between technician and client
4b29dbe Add disconnect/uninstall for persistent sessions
```

### Infrastructure Updates

#### Server Running From
```
~/guru-connect/target/release/guruconnect-server
Working directory: ~/guru-connect/
Static files: ~/guru-connect/static/ (symlink to server/static/)
Log file: ~/guru-connect/server.log
```

#### Deployment Command (from Windows)
```bash
ssh guru@172.16.3.30 bash << 'ENDSSH'
export PATH=/usr/bin:/bin
source ~/.cargo/env
cd ~/guru-connect
git pull
cargo build -p guruconnect-server --release --target x86_64-unknown-linux-gnu
cargo build -p guruconnect-agent --release --target x86_64-pc-windows-gnu
pkill -f guruconnect-server
cp target/x86_64-unknown-linux-gnu/release/guruconnect-server target/release/
cp target/x86_64-pc-windows-gnu/release/guruconnect-agent.exe server/static/GuruConnect.exe
nohup ./target/release/guruconnect-server > server.log 2>&1 &
ENDSSH
```

### Current Status

#### Working Features
- Support code generation and connection
- Agent connects via support code in filename
- Dashboard shows connected sessions with Chat/Join/End buttons
- Access tab shows persistent agents with Connect/Chat/Disconnect buttons
- Chat between technician and client (technician sends, client sees MessageBox)
- Cancellation sends disconnect to agent, agent cleans up
- Admin disconnect triggers full uninstall (registry + scheduled exe deletion)
- System tray icon with End Session menu
- UAC elevation request
- Startup persistence

#### Agent Binary
- Size: 8.1 MB
- Download: https://connect.azcomputerguru.com/GuruConnect.exe

### Connected Machines Seen
- **JOHN-PC** - Connected at 4:46:40 PM (likely Howard testing)
- **PAMEPO** - Connected at 4:48:22 PM (likely Howard testing)

---

## Credentials (Complete Reference)

### Build Server (172.16.3.30)
- **User:** guru
- **Password:** Gptf*77ttb123!@#-rmm
- **SSH:** Key-based auth works from Windows (claude-code key added)
- **Root SSH:** Key added for root@172.16.3.30

### GuruConnect Server
- **Internal URL:** http://172.16.3.30:3002
- **External URL:** https://connect.azcomputerguru.com
- **API Key (default):** dev-key

### SSH Key (claude-code)
```
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIABnQjolTxDtfqOwdDjamK1oyFPiQnaNT/tAgsIHH1Zo claude-code
```

---

## URLs Reference

| URL | Purpose |
|-----|---------|
| https://connect.azcomputerguru.com/ | Customer portal (code entry) |
| https://connect.azcomputerguru.com/login | Technician login |
| https://connect.azcomputerguru.com/dashboard | Technician dashboard |
| https://connect.azcomputerguru.com/GuruConnect.exe | Agent download |
| wss://connect.azcomputerguru.com/ws/agent | Agent WebSocket |
| wss://connect.azcomputerguru.com/ws/viewer | Viewer WebSocket |

---

## Pending Tasks

1. **Full Viewer Implementation** - Currently just shows alert with WebSocket URL
2. **File Transfer** - Transfer Files button is disabled
3. **Proper Authentication** - Still using placeholder "dev-key"
4. **Video Streaming** - Agent captures screen but viewer doesn't display yet
5. **Chat Reply from Client** - Client can only receive messages (no UI to reply)

---

## Update: 00:15 (Persistence & Hidden Console)

### Work Completed

1. **Fixed Persistence Logic**
   - Persistent agents (no code) now ALWAYS add to startup registry
   - Support sessions only temporarily in startup while active
   - Persistent agents automatically reconnect on any disconnect (5 second delay)
   - Support sessions exit without reconnecting

2. **Restricted Session Termination**
   - Persistent agents: No "End Session" menu item, shows "Managed by Administrator" (disabled)
   - Persistent agents can ONLY be removed via admin Disconnect button in dashboard
   - Support sessions: User can still end via tray icon "End Session"

3. **Hidden Console Window**
   - Added `#![windows_subsystem = "windows"]` for release builds - no console window
   - Agent runs silently with only tray icon visible
   - Added "Show Debug Window" menu item to tray
   - Uses AllocConsole() to show console on demand for troubleshooting

### Files Modified

- `agent/src/main.rs` - windows_subsystem, show_debug_console(), persistence logic fixes
- `agent/src/session/mod.rs` - show_debug_console(), handle ShowDebugWindow action
- `agent/src/tray/mod.rs` - Added debug_item, allow_end_session parameter
- `agent/Cargo.toml` - Added Win32_System_Console feature

### Key Code Changes

#### Hidden Console (main.rs)
```rust
// Hide console window by default on Windows (release builds)
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
```

#### Persistence Logic Fix (main.rs)
```rust
// Add to startup so we reconnect after reboot
// Persistent agents (no code) should ALWAYS be in startup
if let Err(e) = startup::add_to_startup() {
    warn!("Failed to add to startup");
}

// Only support sessions can be ended by user
let tray = tray::TrayController::new(&hostname, support_code.as_deref(), is_support_session);
```

#### Tray Menu (tray/mod.rs)
```rust
// Only show "End Session" for support sessions
let end_session_item = if allow_end_session {
    MenuItem::new("End Session", true, None)
} else {
    MenuItem::new("Managed by Administrator", false, None)
};

// Debug window option (always available)
let debug_item = MenuItem::new("Show Debug Window", true, None);
```

### Git Commits This Update
```
52c47b2 Fix persistence logic for persistent vs support sessions
d7c272d Restrict session termination to support sessions only
5bb5116 Hide console window, add Debug Window tray option
```

### Agent Behavior Summary

| Feature | Persistent Agent | Support Session |
|---------|-----------------|-----------------|
| Startup registry | Always added | Added while active |
| End Session menu | Disabled | Enabled |
| Reconnect on disconnect | Yes (5 sec) | No |
| Removal method | Admin only | User or cancel |
| Console window | Hidden | Hidden |
| Debug window | Available | Available |

### Connection Behavior
- Agents maintain **persistent WebSocket connection** (not polling)
- Video frames sent at **30 FPS** (configurable, only when changes)
- No explicit heartbeat mechanism currently
- If disconnected, persistent agents retry every **5 seconds**
- Server immediately knows when agent disconnects (WebSocket close)

---

## Credentials (Complete Reference)

### Build Server (172.16.3.30)
- **User:** guru
- **Password:** Gptf*77ttb123!@#-rmm
- **SSH:** Key-based auth works from Windows
- **Root SSH:** Key added for root@172.16.3.30

### GuruConnect Server
- **Internal URL:** http://172.16.3.30:3002
- **External URL:** https://connect.azcomputerguru.com
- **API Key (default):** dev-key

### SSH Key (claude-code)
```
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIABnQjolTxDtfqOwdDjamK1oyFPiQnaNT/tAgsIHH1Zo claude-code
```

---

## URLs Reference

| URL | Purpose |
|-----|---------|
| https://connect.azcomputerguru.com/ | Customer portal (code entry) |
| https://connect.azcomputerguru.com/login | Technician login |
| https://connect.azcomputerguru.com/dashboard | Technician dashboard |
| https://connect.azcomputerguru.com/GuruConnect.exe | Agent download |
| wss://connect.azcomputerguru.com/ws/agent | Agent WebSocket |
| wss://connect.azcomputerguru.com/ws/viewer | Viewer WebSocket |

---

## Pending Tasks

1. **Full Viewer Implementation** - Video display, not just WebSocket URL
2. **File Transfer** - Transfer Files button disabled
3. **Proper Authentication** - Replace "dev-key" placeholder
4. **Heartbeat Mechanism** - Optional: detect zombie connections
5. **Chat Reply from Client** - Client needs UI to send messages back

-1. **Full Viewer Implementation** - Video display, not just WebSocket URL

+1. ~~**Full Viewer Implementation**~~ - COMPLETED in this session!

-4. **Heartbeat Mechanism** - Optional: detect zombie connections

+4. ~~**Heartbeat Mechanism**~~ - COMPLETED in this session!

+## Update: 00:45 (Idle/Active Mode & Viewer Implementation)

+This session implemented two major features for GuruConnect:

+1. **Idle/Active Mode** - Agents now connect in idle mode and only start streaming when a viewer connects. This allows thousands of agents to be connected with minimal bandwidth.

+2. **Remote Desktop Viewer** - Full canvas-based viewer that displays video frames from agents and sends mouse/keyboard input.

+#### 1. Idle/Active Mode for Scalable Connections

+**Problem:** Original design had agents streaming video immediately upon connection. With 2000 agents, this would be impossible to handle.

+**Solution:** Implemented idle/active state machine:

+- Agent connects → enters **idle mode** (heartbeat every 30s, status every 60s)

+- Viewer connects → server sends `StartStream` → agent enters **streaming mode**

+- Viewer disconnects → server sends `StopStream` → agent returns to **idle mode**

+- Resources (capturer, encoder) only allocated when streaming

+**Bandwidth Comparison (2000 agents):**

+| Agent bandwidth (idle) | 100+ KB/sec | ~100 bytes/min |

+| Server incoming | Impossible | ~3 KB/sec heartbeats |

+| CPU per agent (idle) | 5-15% | Near 0% |

+Created full-featured viewer at `server/static/viewer.html`:

+- Protobuf parsing for VideoFrame/RawFrame

+- Zstd decompression using fzstd library

+- Mouse event capture (move, click, wheel)

+- `joinSession()` now opens viewer in new window

+- `connectToMachine()` now opens viewer in new window

+- `server/static/viewer.html` - Full viewer implementation (684 lines)

+- `proto/guruconnect.proto` - Added StartStream, StopStream, AgentStatus messages

+- `agent/src/session/mod.rs` - Idle/active state machine, lazy resource allocation

+- `agent/src/main.rs` - Pass is_elevated to SessionManager

+- `server/src/session/mod.rs` - Viewer tracking, start/stop stream, heartbeat timeout

+- `server/src/relay/mod.rs` - Handle AgentStatus, Heartbeat messages

+- `server/src/api/mod.rs` - Added is_streaming, last_heartbeat, etc. to API response

+- `server/static/dashboard.html` - Open viewer instead of alert

+#### Agent State Machine (agent/src/session/mod.rs)

+    Idle,       // Connected but not streaming

+    Streaming,  // Actively capturing and sending frames

+// Only allocate resources when streaming

+fn init_streaming(&mut self) -> Result<()> {

+    let capturer = capture::create_capturer(...);

+    let encoder = encoder::create_encoder(...);

+    let input = InputController::new()?;

+#### Server Viewer Tracking (server/src/session/mod.rs)

+pub async fn join_session(&self, session_id: SessionId, viewer_id: ViewerId) {

+    let was_empty = session_data.viewers.is_empty();

+    session_data.viewers.insert(viewer_id.clone());

+    // If first viewer, send StartStream to agent

+        Self::send_start_stream_internal(session_data, &viewer_id).await;

+pub async fn leave_session(&self, session_id: SessionId, viewer_id: &ViewerId) {

+    session_data.viewers.remove(viewer_id);

+    // If no more viewers, send StopStream

+    if session_data.viewers.is_empty() {

+        Self::send_stop_stream_internal(session_data, viewer_id).await;

+#### Viewer Protobuf Parsing (viewer.html)

+    // Parse Message wrapper → VideoFrame → RawFrame

+    // Extract width, height, compressed data

+    return { width, height, compressedData, isKeyframe };

+    const decompressed = fzstd.decompress(frame.compressedData);

+    for (let i = 0; i < decompressed.length; i += 4) {

+        pixels[i] = decompressed[i + 2];     // R <- B

+        pixels[i + 2] = decompressed[i];     // B <- R

+4417fdf Implement idle/active mode for scalable agent connections

+cc35d11 Fix: use Self:: for static method calls

+**Agent ACG-TECH-01L connected and tested:**

+00:28:52 - Agent status: streaming=false, uptime=0s

+00:29:13 - Viewer joined → StartStream sent

+00:29:20 - Viewer disconnected → StopStream sent

+00:29:52 - Agent status: streaming=false, uptime=60s

+- ✓ StartStream sent when viewer connects

+- ✓ StopStream sent when viewer disconnects

+- **External URL:** https://connect.azcomputerguru.com

+| https://connect.azcomputerguru.com/ | Customer portal |

+| https://connect.azcomputerguru.com/login | Technician login |

+| https://connect.azcomputerguru.com/dashboard | Technician dashboard |

+| https://connect.azcomputerguru.com/viewer.html?session_id=XXX | Remote viewer |

+| https://connect.azcomputerguru.com/GuruConnect.exe | Agent download (8.2 MB) |

+| wss://connect.azcomputerguru.com/ws/agent | Agent WebSocket |

+| wss://connect.azcomputerguru.com/ws/viewer | Viewer WebSocket |

+1. **Test Viewer** - User has ACG-TECH-01L connected, ready for live testing

+2. **File Transfer** - Transfer Files button disabled

+3. **Proper Authentication** - Replace "dev-key" placeholder

+4. **Dirty Rectangle Optimization** - Currently rendering full frames

+5. **VP9/H264 Codec Support** - Only raw+zstd implemented

+6. **Multi-Display Support** - UI exists but not wired

+7. **Clipboard Sync** - Not implemented

+1. Open dashboard, go to Access tab, click Connect on ACG-TECH-01L

+2. Viewer should open and display remote desktop

+3. Test mouse movement, clicking, keyboard input

+4. Verify agent CPU usage changes between idle and streaming


Session log updated. Now let me commit and push it.


Bash

cd /c/Users/MikeSwanson/Claude && git add session-logs/2025-12-28-session.md && git commit -m "Session log: Idle/active mode and remote viewer implementation" && git push origin main

Commit and push session log


[main 3fd6c7f] Session log: Idle/active mode and remote viewer implementation
 1 file changed, 225 insertions(+), 2 deletions(-)
To https://github.com/AZComputerGuru/claude-projects.git
   08e1246..3fd6c7f  main -> main


Session log saved and pushed. Let me provide a summary to the user.


Session log saved and pushed.

## Ready to Test the Viewer! 🎉

The viewer is deployed. To test:

1. Go to https://connect.azcomputerguru.com/dashboard
2. Click **Access** tab
3. Click **Connect** on ACG-TECH-01L
4. Viewer window should open showing the remote desktop

**What to test:**
- Video display (you should see the laptop's screen)
- Mouse movement (move mouse, it should move on remote)
- Click (left, right, middle)
- Keyboard (type something)
- Fullscreen button
- Ctrl+Alt+Del button

The FPS counter in the toolbar will show frame rate. Let me know if it works or if there are any issues!


That laptop was asleep, and disappeard from sessions.  It should have remained in sessionlist but show as offline when sleeping?

Update dashboard to open viewer

Test with live agent


The user is right - when a laptop sleeps, the agent disconnects and the session is removed from the server's session list. But for persistent agents (not support sessions), they should remain visible in the dashboard as "offline" so technicians know which machines have the agent installed.

Currently:
- Agent connects → session created → shown in list
- Agent disconnects (sleep/shutdown) → session removed → disappears from list

What it should be:
- Agent connects → session created → shown as "online"
- Agent disconnects → session marked offline → still shown in list as "offline"
- Agent reconnects → session marked online again

This requires:
1. Not removing sessions when agent disconnects (for persistent agents)
2. Tracking online/offline status
3. Maybe a separate "agents" table vs "sessions"

Actually, there's a conceptual distinction:
- **Session** = active WebSocket connection, temporary
- **Agent** = installed agent on a machine, persistent

We need to track agents separately from sessions. When an agent connects, it should:
1. Register/update itself in an agents list (persistent)
2. Create a session for the active connection (temporary)

When agent disconnects:
1. Session is removed
2. Agent record remains, marked as offline

Let me think about the simplest implementation:
- Add an "agents" collection in the server
- Agent registers on connect, updates last_seen
- Session is separate for active connections
- API returns agents list with online/offline status based on whether they have an active session

Or simpler approach:
- Don't remove sessions on disconnect for persistent agents
- Add an "online" flag to sessions
- Set online=false on disconnect instead of removing
- On reconnect, reuse existing session and set online=true

The simpler approach might work, but has issues:
- Session IDs would change on reconnect (different UUID each time)
- Need to match by agent_id instead

Let me propose a clean solution:
1. Add `is_online` field to Session

2. Implement a mechanism to mark sessions as offline when agents disconnect
3. Create a way to reuse existing sessions for persistent agents
4. Develop a dashboard view that reflects current agent status

I'll track agent connectivity by adding an online status flag and preserving session information across disconnects. This approach ensures technicians can monitor machine agent states continuously, even during temporary network interruptions.


You're right. Persistent agents should remain in the list as "offline" when they disconnect (sleep, shutdown, network loss). Currently the session is removed entirely on disconnect.

Let me fix this:


TodoWrite

Add is_online flag to sessions

Keep persistent agent sessions on disconnect (mark offline)

Update dashboard to show online/offline status

Handle agent reconnection (reuse existing session)


Update dashboard to open viewer

Test with live agent

Add is_online flag to sessions

Keep persistent agent sessions on disconnect (mark offline)

Update dashboard to show online/offline status

Handle agent reconnection (reuse existing session)


Let me update the server's session module to:
1. Add is_online field
2. On disconnect, set is_online = false instead of removing (for persistent agents - those without support code)
3. On connect, check if agent_id already exists and reuse the session

I'll need to update multiple files:
1. server/src/session/mod.rs - Add is_online, change remove to mark offline
2. server/src/relay/mod.rs - Pass support_code info to session manager, handle reconnection
3. server/src/api/mod.rs - Include is_online in API response
4. server/static/dashboard.html - Show online/offline status

Let me start with the session module.


     1→//! Session management for GuruConnect
     2→//!
     3→//! Manages active remote desktop sessions, tracking which agents
     4→//! are connected and which viewers are watching them.
     5→
     6→use std::collections::{HashMap, HashSet};
     7→use std::sync::Arc;
     8→use std::time::Instant;
     9→use tokio::sync::{broadcast, RwLock};
    10→use uuid::Uuid;
    11→
    12→/// Unique identifier for a session
    13→pub type SessionId = Uuid;
    14→
    15→/// Unique identifier for an agent
    16→pub type AgentId = String;
    17→
    18→/// Unique identifier for a viewer
    19→pub type ViewerId = String;
    20→
    21→/// Heartbeat timeout (90 seconds - 3x the agent's 30 second interval)
    22→const HEARTBEAT_TIMEOUT_SECS: u64 = 90;
    23→
    24→/// Session state
    25→#[derive(Debug, Clone)]
    26→pub struct Session {
    27→    pub id: SessionId,
    28→    pub agent_id: AgentId,
    29→    pub agent_name: String,
    30→    pub started_at: chrono::DateTime<chrono::Utc>,
    31→    pub viewer_count: usize,
    32→    pub is_streaming: bool,
    33→    pub last_heartbeat: chrono::DateTime<chrono::Utc>,
    34→    // Agent status info
    35→    pub os_version: Option<String>,
    36→    pub is_elevated: bool,
    37→    pub uptime_secs: i64,
    38→    pub display_count: i32,
    39→}
    40→
    41→/// Channel for sending frames from agent to viewers
    42→pub type FrameSender = broadcast::Sender<Vec<u8>>;
    43→pub type FrameReceiver = broadcast::Receiver<Vec<u8>>;
    44→
    45→/// Channel for sending input events from viewer to agent
    46→pub type InputSender = tokio::sync::mpsc::Sender<Vec<u8>>;
    47→pub type InputReceiver = tokio::sync::mpsc::Receiver<Vec<u8>>;
    48→
    49→/// Internal session data with channels
    50→struct SessionData {
    51→    info: Session,
    52→    /// Channel for video frames (agent -> viewers)
    53→    frame_tx: FrameSender,
    54→    /// Channel for input events (viewer -> agent)
    55→    input_tx: InputSender,
    56→    input_rx: Option<InputReceiver>,
    57→    /// Set of connected viewer IDs
    58→    viewers: HashSet<ViewerId>,
    59→    /// Instant for heartbeat tracking
    60→    last_heartbeat_instant: Instant,
    61→}
    62→
    63→/// Manages all active sessions
    64→#[derive(Clone)]
    65→pub struct SessionManager {
    66→    sessions: Arc<RwLock<HashMap<SessionId, SessionData>>>,
    67→    agents: Arc<RwLock<HashMap<AgentId, SessionId>>>,
    68→}
    69→
    70→impl SessionManager {
    71→    pub fn new() -> Self {
    72→        Self {
    73→            sessions: Arc::new(RwLock::new(HashMap::new())),
    74→            agents: Arc::new(RwLock::new(HashMap::new())),
    75→        }
    76→    }
    77→
    78→    /// Register a new agent and create a session
    79→    pub async fn register_agent(&self, agent_id: AgentId, agent_name: String) -> (SessionId, FrameSender, InputReceiver) {
    80→        let session_id = Uuid::new_v4();
    81→
    82→        // Create channels
    83→        let (frame_tx, _) = broadcast::channel(16); // Buffer 16 frames
    84→        let (input_tx, input_rx) = tokio::sync::mpsc::channel(64); // Buffer 64 input events
    85→
    86→        let now = chrono::Utc::now();
    87→        let session = Session {
    88→            id: session_id,
    89→            agent_id: agent_id.clone(),
    90→            agent_name,
    91→            started_at: now,
    92→            viewer_count: 0,
    93→            is_streaming: false,
    94→            last_heartbeat: now,
    95→            os_version: None,
    96→            is_elevated: false,
    97→            uptime_secs: 0,
    98→            display_count: 1,
    99→        };
   100→
   101→        let session_data = SessionData {
   102→            info: session,
   103→            frame_tx: frame_tx.clone(),
   104→            input_tx,
   105→            input_rx: None,
   106→            viewers: HashSet::new(),
   107→            last_heartbeat_instant: Instant::now(),
   108→        };
   109→
   110→        let mut sessions = self.sessions.write().await;
   111→        sessions.insert(session_id, session_data);
   112→
   113→        let mut agents = self.agents.write().await;
   114→        agents.insert(agent_id, session_id);
   115→
   116→        (session_id, frame_tx, input_rx)
   117→    }
   118→
   119→    /// Update agent status from heartbeat or status message
   120→    pub async fn update_agent_status(

<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>

//! Session management for GuruConnect
//!
//! Manages active remote desktop sessions, tracking which agents
//! are connected and which viewers are watching them.

use std::collections::{HashMap, HashSet};
use std::sync::Arc;
use std::time::Instant;
use tokio::sync::{broadcast, RwLock};
use uuid::Uuid;

/// Unique identifier for a session
pub type SessionId = Uuid;

/// Unique identifier for an agent
pub type AgentId = String;

/// Unique identifier for a viewer
pub type ViewerId = String;

/// Heartbeat timeout (90 seconds - 3x the agent's 30 second interval)
const HEARTBEAT_TIMEOUT_SECS: u64 = 90;

/// Session state
#[derive(Debug, Clone)]
pub struct Session {
    pub id: SessionId,
    pub agent_id: AgentId,
    pub agent_name: String,
    pub started_at: chrono::DateTime<chrono::Utc>,
    pub viewer_count: usize,
    pub is_streaming: bool,
    pub last_heartbeat: chrono::DateTime<chrono::Utc>,
    // Agent status info
    pub os_version: Option<String>,
    pub is_elevated: bool,
    pub uptime_secs: i64,
    pub display_count: i32,
}

/// Channel for sending frames from agent to viewers
pub type FrameSender = broadcast::Sender<Vec<u8>>;
pub type FrameReceiver = broadcast::Receiver<Vec<u8>>;

/// Channel for sending input events from viewer to agent
pub type InputSender = tokio::sync::mpsc::Sender<Vec<u8>>;
pub type InputReceiver = tokio::sync::mpsc::Receiver<Vec<u8>>;

/// Internal session data with channels
struct SessionData {
    info: Session,
    /// Channel for video frames (agent -> viewers)
    frame_tx: FrameSender,
    /// Channel for input events (viewer -> agent)
    input_tx: InputSender,
    input_rx: Option<InputReceiver>,
    /// Set of connected viewer IDs
    viewers: HashSet<ViewerId>,
    /// Instant for heartbeat tracking
    last_heartbeat_instant: Instant,
}

/// Manages all active sessions
#[derive(Clone)]
pub struct SessionManager {
    sessions: Arc<RwLock<HashMap<SessionId, SessionData>>>,
    agents: Arc<RwLock<HashMap<AgentId, SessionId>>>,
}

impl SessionManager {
    pub fn new() -> Self {
        Self {
            sessions: Arc::new(RwLock::new(HashMap::new())),
            agents: Arc::new(RwLock::new(HashMap::new())),
        }
    }

    /// Register a new agent and create a session
    pub async fn register_agent(&self, agent_id: AgentId, agent_name: String) -> (SessionId, FrameSender, InputReceiver) {
        let session_id = Uuid::new_v4();

        // Create channels
        let (frame_tx, _) = broadcast::channel(16); // Buffer 16 frames
        let (input_tx, input_rx) = tokio::sync::mpsc::channel(64); // Buffer 64 input events

        let now = chrono::Utc::now();
        let session = Session {
            id: session_id,
            agent_id: agent_id.clone(),
            agent_name,
            started_at: now,
            viewer_count: 0,
            is_streaming: false,
            last_heartbeat: now,
            os_version: None,
            is_elevated: false,
            uptime_secs: 0,
            display_count: 1,
        };

        let session_data = SessionData {
            info: session,
            frame_tx: frame_tx.clone(),
            input_tx,
            input_rx: None,
            viewers: HashSet::new(),
            last_heartbeat_instant: Instant::now(),
        };

        let mut sessions = self.sessions.write().await;
        sessions.insert(session_id, session_data);

        let mut agents = self.agents.write().await;
        agents.insert(agent_id, session_id);

        (session_id, frame_tx, input_rx)
    }

    /// Update agent status from heartbeat or status message
    pub async fn update_agent_status(


I need to add an `is_online` field to Session, modify register_agent to check for existing offline sessions, and change remove_session to mark offline instead of removing for persistent agents.

Let me rewrite the session module with these changes.


Edit

/// Session state
#[derive(Debug, Clone)]
pub struct Session {
    pub id: SessionId,
    pub agent_id: AgentId,
    pub agent_name: String,
    pub started_at: chrono::DateTime<chrono::Utc>,
    pub viewer_count: usize,
    pub is_streaming: bool,
    pub last_heartbeat: chrono::DateTime<chrono::Utc>,
    // Agent status info
    pub os_version: Option<String>,
    pub is_elevated: bool,
    pub uptime_secs: i64,
    pub display_count: i32,
}

/// Session state
#[derive(Debug, Clone)]
pub struct Session {
    pub id: SessionId,
    pub agent_id: AgentId,
    pub agent_name: String,
    pub started_at: chrono::DateTime<chrono::Utc>,
    pub viewer_count: usize,
    pub is_streaming: bool,
    pub is_online: bool,  // Whether agent is currently connected
    pub is_persistent: bool,  // Persistent agent (no support code) vs support session
    pub last_heartbeat: chrono::DateTime<chrono::Utc>,
    // Agent status info
    pub os_version: Option<String>,
    pub is_elevated: bool,
    pub uptime_secs: i64,
    pub display_count: i32,
}