Restructure modules (#1572)

* Move portbase into monorepo

* Add new simple module mgr

* [WIP] Switch to new simple module mgr

* Add StateMgr and more worker variants

* [WIP] Switch more modules

* [WIP] Switch more modules

* [WIP] swtich more modules

* [WIP] switch all SPN modules

* [WIP] switch all service modules

* [WIP] Convert all workers to the new module system

* [WIP] add new task system to module manager

* [WIP] Add second take for scheduling workers

* [WIP] Add FIXME for bugs in new scheduler

* [WIP] Add minor improvements to scheduler

* [WIP] Add new worker scheduler

* [WIP] Fix more bug related to new module system

* [WIP] Fix start handing of the new module system

* [WIP] Improve startup process

* [WIP] Fix minor issues

* [WIP] Fix missing subsystem in settings

* [WIP] Initialize managers in constructor

* [WIP] Move module event initialization to constrictors

* [WIP] Fix setting for enabling and disabling the SPN module

* [WIP] Move API registeration into module construction

* [WIP] Update states mgr for all modules

* [WIP] Add CmdLine operation support

* Add state helper methods to module group and instance

* Add notification and module status handling to status package

* Fix starting issues

* Remove pilot widget and update security lock to new status data

* Remove debug logs

* Improve http server shutdown

* Add workaround for cleanly shutting down firewall+netquery

* Improve logging

* Add syncing states with notifications for new module system

* Improve starting, stopping, shutdown; resolve FIXMEs/TODOs

* [WIP] Fix most unit tests

* Review new module system and fix minor issues

* Push shutdown and restart events again via API

* Set sleep mode via interface

* Update example/template module

* [WIP] Fix spn/cabin unit test

* Remove deprecated UI elements

* Make log output more similar for the logging transition phase

* Switch spn hub and observer cmds to new module system

* Fix log sources

* Make worker mgr less error prone

* Fix tests and minor issues

* Fix observation hub

* Improve shutdown and restart handling

* Split up big connection.go source file

* Move varint and dsd packages to structures repo

* Improve expansion test

* Fix linter warnings

* Fix interception module on windows

* Fix linter errors

---------

Co-authored-by: Vladimir Stoilov <vladimir@safing.io>

base/api/request.go

@@ -0,0 +1,60 @@
+package api
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/gorilla/mux"
+
+	"github.com/safing/portmaster/base/log"
+)
+
+// Request is a support struct to pool more request related information.
+type Request struct {
+	// Request is the http request.
+	*http.Request
+
+	// InputData contains the request body for write operations.
+	InputData []byte
+
+	// Route of this request.
+	Route *mux.Route
+
+	// URLVars contains the URL variables extracted by the gorilla mux.
+	URLVars map[string]string
+
+	// AuthToken is the request-side authentication token assigned.
+	AuthToken *AuthToken
+
+	// ResponseHeader holds the response header.
+	ResponseHeader http.Header
+
+	// HandlerCache can be used by handlers to cache data between handlers within a request.
+	HandlerCache interface{}
+}
+
+// apiRequestContextKey is a key used for the context key/value storage.
+type apiRequestContextKey struct{}
+
+// RequestContextKey is the key used to add the API request to the context.
+var RequestContextKey = apiRequestContextKey{}
+
+// GetAPIRequest returns the API Request of the given http request.
+func GetAPIRequest(r *http.Request) *Request {
+	ar, ok := r.Context().Value(RequestContextKey).(*Request)
+	if ok {
+		return ar
+	}
+	return nil
+}
+
+// TextResponse writes a text response.
+func TextResponse(w http.ResponseWriter, r *http.Request, text string) {
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	w.Header().Set("X-Content-Type-Options", "nosniff")
+	w.WriteHeader(http.StatusOK)
+	_, err := fmt.Fprintln(w, text)
+	if err != nil {
+		log.Tracer(r.Context()).Warningf("api: failed to write text response: %s", err)
+	}
+}