80 lines
2.5 KiB
Go
80 lines
2.5 KiB
Go
package gui
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"sync/atomic"
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"github.com/yetone/magpie/internal/agent"
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"github.com/yetone/magpie/internal/settings"
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)
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// Gateway mode (Player on Discord): `magpie web` on a server that is only
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// the gateway for other machines' agents shows what such a gateway needs —
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// Providers, Gateway, Routing, Usage, Plugins and Settings — and leaves out
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// what is this machine's agents' (Agents, Sessions, Library, the settings
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// written into agents' files) and its desktop's (the tray, the Dock, open
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// at login, notifications). It is the browser page's alone: the app's
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// windows show everything whatever it says.
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//
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// Settings' choice (settings.GatewayMode, "on" or "off") wins; with none,
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// `magpie web --gateway` turns it on, and so does a magpie web with no
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// agent on its machine (a container, a NAS). Settings › General turns it
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// off again, which brings the pages back.
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// WebGateway is `magpie web --gateway`'s.
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var WebGateway atomic.Bool
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// webPage is set once the page is served by `magpie web`: settingsState,
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// which has no Windows, tells the page its gateway mode by it.
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var webPage atomic.Bool
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// gatewayMode says whether the page is in gateway mode, and why: "on" or
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// "off" (Settings' choice), "flag" (magpie web --gateway), "no-agents", or
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// "" (the app's windows, or magpie web on a machine with agents).
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func gatewayMode(web bool) (bool, string) {
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if !web {
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return false, ""
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}
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switch m := settings.Load().GatewayMode; m {
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case "on", "off":
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return m == "on", m
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}
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if WebGateway.Load() {
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return true, "flag"
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}
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if !agentsHere() {
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return true, "no-agents"
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}
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return false, ""
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}
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// agentsHere says whether an agent is found on this computer; a test's own.
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var agentsHere = func() bool { return len(agent.Detected()) > 0 }
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// gatewayModeRoutes: POST /api/settings/gateway-mode {"mode": "on" | "off"
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// | ""} sets Settings' choice, "" leaving it to magpie again.
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func gatewayModeRoutes(mux *http.ServeMux) {
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mux.HandleFunc("POST /api/settings/gateway-mode", func(rw http.ResponseWriter, r *http.Request) {
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var in struct {
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Mode string `json:"mode"`
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}
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if err := json.NewDecoder(r.Body).Decode(&in); err != nil {
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fail(rw, err)
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return
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}
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if in.Mode != "" && in.Mode != "on" && in.Mode != "off" {
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fail(rw, fmt.Errorf("gateway mode is on, off or \"\" (automatic), not %q", in.Mode))
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return
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}
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s := settings.Load()
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s.GatewayMode = in.Mode
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if err := settings.Save(s); err != nil {
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fail(rw, err)
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return
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}
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writeJSON(rw, settingsState())
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})
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}
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