Move matching package to feature branch

profile/matching/database.go

@@ -0,0 +1,17 @@
+package matching
+
+import (
+	"github.com/safing/portbase/database"
+)
+
+// core:profiles/user/12345-1234-125-1234-1235
+// core:profiles/special/default
+//                      /global
+// core:profiles/stamp/12334-1235-1234-5123-1234
+// core:profiles/identifier/base64
+
+var (
+	profileDB = database.NewInterface(&database.Options{
+		Local: true, // we want to access crownjewel records (indexes are)
+	})
+)

profile/matching/fingerprints.go

@@ -0,0 +1,23 @@
+package matching
+
+import (
+	"strings"
+
+	"github.com/safing/portmaster/process"
+	"github.com/safing/portmaster/profile"
+)
+
+// CheckFingerprints checks what fingerprints match and returns the total score.
+func CheckFingerprints(proc *process.Process, prof *profile.Profile) (score int, err error) {
+	// FIXME: kinda a dummy for now
+
+	for _, fp := range prof.Fingerprints {
+		if strings.HasPrefix(fp, "fullpath:") {
+			if fp[9:] == proc.Path {
+				return 3, nil
+			}
+		}
+	}
+
+	return 0, nil
+}

profile/matching/identpath_linux.go

@@ -0,0 +1,18 @@
+package matching
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/safing/portmaster/process"
+	"github.com/safing/portmaster/profile"
+)
+
+// GetIdentificationPath returns the identifier for the given process (linux edition).
+func GetIdentificationPath(p *process.Process) string {
+	splittedPath := strings.Split(p.Path, "/")
+	if len(splittedPath) > 3 {
+		return fmt.Sprintf("%s%s", profile.IdentifierPrefix, strings.Join(splittedPath[len(splittedPath)-3:len(splittedPath)], "/"))
+	}
+	return fmt.Sprintf("%s%s", profile.IdentifierPrefix, p.Path)
+}

profile/matching/identpath_linux_test.go

@@ -0,0 +1,25 @@
+package matching
+
+import (
+	"testing"
+
+	"github.com/safing/portmaster/process"
+)
+
+func TestGetIdentifierLinux(t *testing.T) {
+	p := &process.Process{
+		Path: "/usr/lib/firefox/firefox",
+	}
+
+	if GetIdentificationPath(p) != "lin:lib/firefox/firefox" {
+		t.Fatal("mismatch!")
+	}
+
+	p = &process.Process{
+		Path: "/opt/start",
+	}
+
+	if GetIdentificationPath(p) != "lin:/opt/start" {
+		t.Fatal("mismatch!")
+	}
+}

profile/matching/matcher.go

@@ -0,0 +1,61 @@
+package matching
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/safing/portbase/log"
+	"github.com/safing/portmaster/process"
+	"github.com/safing/portmaster/profile"
+	"github.com/safing/portmaster/profile/index"
+)
+
+// GetProfileSet finds a local profile.
+func GetProfileSet(proc *process.Process) (set *profile.ProfileSet, err error) {
+
+	identPath := GetIdentificationPath(proc)
+	pi, err := index.GetIndex(identPath)
+
+	var bestScore int
+	var bestProfile *profile.Profile
+
+	for _, id := range pi.UserProfiles {
+		prof, err := profile.GetUserProfile(id)
+		if err != nil {
+			log.Errorf("profile/matcher: failed to load profile: %s", err)
+			continue
+		}
+
+		score, err := CheckFingerprints(proc, prof)
+		if score > bestScore {
+			bestScore = score
+			bestProfile = prof
+		}
+	}
+
+	if bestProfile == nil {
+		bestProfile = ProfileFromProcess(proc)
+	}
+
+	// FIXME: fetch stamp profile
+	set = profile.NewSet(bestProfile, nil)
+	return set, nil
+}
+
+// ProfileFromProcess creates an initial profile based on the given process.
+func ProfileFromProcess(proc *process.Process) *profile.Profile {
+	new := profile.New()
+
+	splittedPath := strings.Split(proc.Path, "/")
+	new.Name = strings.ToTitle(splittedPath[len(splittedPath)-1])
+
+	new.Identifiers = append(new.Identifiers, GetIdentificationPath(proc))
+	new.Fingerprints = append(new.Fingerprints, fmt.Sprintf("fullpath:%s", proc.Path))
+
+	err := new.Save(profile.UserNamespace)
+	if err != nil {
+		log.Errorf("profile/matcher: could not save new profile: %s", new.Name)
+	}
+
+	return new
+}