Skip to content
Kward Search API index

Class: Kward::PanServer

Inherits:
Object
  • Object
show all
Defined in:
lib/kward/pan/server.rb

Overview

Local HTTP server for the mobile-friendly Pan web UI.

Constant Summary collapse

DEFAULT_HOST = 
"127.0.0.1"
DEFAULT_PORT = 
8765
MAX_REQUEST_BODY_BYTES = 
64 * 1024
ROUTING_PROBE_ADDRESS = 
"8.8.8.8"
ROUTING_PROBE_PORT = 
80

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(client:, working_directory:, config: ConfigFiles.read_config, config_dir: ConfigFiles.config_dir, output: $stderr, udp_socket_class: UDPSocket) ⇒ PanServer

Returns a new instance of PanServer.



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
 
# File 'lib/kward/pan/server.rb', line 34

def initialize(client:, working_directory:, config: ConfigFiles.read_config, config_dir: ConfigFiles.config_dir, output: $stderr, udp_socket_class: UDPSocket)
  @client = client
  @output = output
  @udp_socket_class = udp_socket_class
  @workspace = WorkspaceFactory.build(
    root: working_directory,
    guardrails: ConfigFiles.workspace_guardrails_enabled?(config),
    config: config
  )
  @full_config = config
  @config = pan_config(config)
  @host = @config.fetch("host", DEFAULT_HOST).to_s
  @port = positive_port(@config.fetch("port", DEFAULT_PORT))
  @username = @config["username"].to_s
  environment_password = ENV["KWARD_PAN_PASSWORD"].to_s
  @password = environment_password.empty? ? @config["password"].to_s : environment_password
  if @username.empty? || @password.empty?
    raise "Pan mode requires pan_mode.username and either pan_mode.password or KWARD_PAN_PASSWORD"
  end

  @session_store = SessionStore.new(config_dir: config_dir, cwd: @workspace.root.to_s)
  @session = @session_store.create(
    provider: (@client.current_provider if @client.respond_to?(:current_provider)),
    model: (@client.current_model if @client.respond_to?(:current_model)),
    reasoning_effort: (@client.current_reasoning_effort if @client.respond_to?(:current_reasoning_effort))
  )
  @conversation = new_conversation
  @session.attach(@conversation)
  @agent = build_agent
  @prompt_queue = Queue.new
  @subscribers = []
  @subscribers_mutex = Mutex.new
  @worker_started = false
  @active = false
  @pending_turns = 0
  @state_mutex = Mutex.new
  @session_mutex = Mutex.new
end

Instance Attribute Details

#host ⇒ Object (readonly)

Returns the value of attribute host.



73
74
75
 
# File 'lib/kward/pan/server.rb', line 73

def host
  @host
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



73
74
75
 
# File 'lib/kward/pan/server.rb', line 73

def port
  @port
end

#session ⇒ Object (readonly)

Returns the value of attribute session.



73
74
75
 
# File 'lib/kward/pan/server.rb', line 73

def session
  @session
end

#workspace ⇒ Object (readonly)

Returns the value of attribute workspace.



73
74
75
 
# File 'lib/kward/pan/server.rb', line 73

def workspace
  @workspace
end

Instance Method Details

#enqueue_prompt(prompt) ⇒ Object 



100
101
102
103
104
105
106
107
108
109
110
111
 
# File 'lib/kward/pan/server.rb', line 100

def enqueue_prompt(prompt)
  text = prompt.to_s
  return { ok: false, error: "Prompt is required" } if text.strip.empty?

  @session_mutex.synchronize do
    queued_at = Time.now.utc.iso8601(3)
    @state_mutex.synchronize { @pending_turns += 1 }
    @prompt_queue << { prompt: text, queued_at: queued_at }
  end
  broadcast("queue", queue_payload)
  { ok: true, queued: @prompt_queue.size, active: active? }
end

#run ⇒ Object 



75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
 
# File 'lib/kward/pan/server.rb', line 75

def run
  warn_if_exposed
  start_worker
  @server = TCPServer.new(@host, @port)
  actual_port = @server.addr[1]
  @output.puts "Kward pan mode listening on http://#{display_host}:#{actual_port}"
  @output.puts "Workspace: #{@workspace.root}"
  @output.puts "Session: #{@session.path}"

  loop do
    socket = @server.accept
    Thread.new(socket) { |client_socket| handle_client(client_socket) }
  end
rescue Interrupt
  @output.puts "\nPan mode stopped."
ensure
  stop
end

#stop ⇒ Object 



94
95
96
97
98
 
# File 'lib/kward/pan/server.rb', line 94

def stop
  @server&.close unless @server&.closed?
rescue IOError
  nil
end

#transcript_items ⇒ Object 



113
114
115
 
# File 'lib/kward/pan/server.rb', line 113

def transcript_items
  RPC::TranscriptNormalizer.new(@conversation.messages).normalize.flat_map { |message| pan_transcript_items(message) }
end