Support Android share-driven credential lookup

internal/appui/lifecycle_actions.go

@@ -4,8 +4,10 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"net/url"
 	"os"
 	"path/filepath"
+	"regexp"
 	"runtime"
 	"strings"
 
@@ -17,6 +19,8 @@ import (
 	"git.julianfamily.org/keepassgo/internal/webdav"
 )
 
+var pendingSharedLookupURLPattern = regexp.MustCompile(`https?://[^\s<>"']+`)
+
 func (u *ui) createVaultAction() error {
 	key, err := u.currentMasterKey()
 	defer u.clearMasterPassword()
@@ -78,6 +82,7 @@ func (u *ui) openVaultAction() error {
 	u.loadSecuritySettingsFromSession()
 	u.editingEntry = false
 	u.filter()
+	u.applyPendingSharedLookup()
 	u.applyPendingLifecycleOpenIntent()
 	return nil
 }
@@ -120,6 +125,7 @@ func (u *ui) startOpenVaultAction() {
 			u.loadSecuritySettingsFromSession()
 			u.editingEntry = false
 			u.filter()
+			u.applyPendingSharedLookup()
 			u.applyPendingLifecycleOpenIntent()
 			return nil
 		}, nil
@@ -741,6 +747,49 @@ func (u *ui) consumePendingSharedVaultImport() {
 	}
 }
 
+func normalizePendingSharedLookupQuery(raw string) string {
+	value := strings.TrimSpace(raw)
+	if value == "" {
+		return ""
+	}
+	if match := pendingSharedLookupURLPattern.FindString(value); match != "" {
+		value = match
+	}
+	if parsed, err := url.Parse(value); err == nil && strings.TrimSpace(parsed.Hostname()) != "" {
+		return strings.ToLower(strings.TrimSpace(parsed.Hostname()))
+	}
+	return value
+}
+
+func (u *ui) consumePendingSharedLookup() {
+	path := strings.TrimSpace(u.pendingSharedLookupPath)
+	if path == "" {
+		return
+	}
+	data, err := os.ReadFile(path)
+	if err != nil {
+		if !errors.Is(err, os.ErrNotExist) {
+			u.state.ErrorMessage = fmt.Sprintf("shared lookup: %v", err)
+		}
+		return
+	}
+	_ = os.Remove(path)
+	u.pendingSharedLookupQuery = normalizePendingSharedLookupQuery(string(data))
+	u.applyPendingSharedLookup()
+}
+
+func (u *ui) applyPendingSharedLookup() {
+	query := strings.TrimSpace(u.pendingSharedLookupQuery)
+	status, ok := u.state.Session.(sessionStatus)
+	if query == "" || !ok || !status.HasVault() || status.IsLocked() {
+		return
+	}
+	u.pendingSharedLookupQuery = ""
+	u.state.Section = appstate.SectionEntries
+	u.search.SetText(query)
+	u.filter()
+}
+
 func (u *ui) importSharedVaultBytesAction(name string, content []byte) error {
 	target := u.importedVaultDestination(name)
 	if err := os.MkdirAll(filepath.Dir(target), 0o700); err != nil {