download kind works

app/utils.go

@@ -3,9 +3,13 @@ package app
 import (
 	"encoding/json"
 	"os"
+	"strings"
+	"time"
 
 	"git.blackforestbytes.com/BlackForestBytes/goext/cryptext"
 	"git.blackforestbytes.com/BlackForestBytes/goext/exerr"
+	"github.com/shirou/gopsutil/v3/process"
+	"mikescher.com/kpsync/log"
 )
 
 func fileExists(p string) bool {
@@ -17,12 +21,16 @@ func fileExists(p string) bool {
 }
 
 type State struct {
-	ETag     string `json:"etag"`
-	Size     int64  `json:"size"`
-	Checksum string `json:"checksum"`
+	ETag         string    `json:"etag"`
+	Size         int64     `json:"size"`
+	Checksum     string    `json:"checksum"`
+	LastModified time.Time `json:"lastModified"`
 }
 
 func (app *Application) readState() *State {
+	app.masterLock.Lock()
+	defer app.masterLock.Unlock()
+
 	bin, err := os.ReadFile(app.stateFile)
 	if err != nil {
 		return nil
@@ -37,6 +45,30 @@ func (app *Application) readState() *State {
 	return &state
 }
 
+func (app *Application) saveState(eTag string, lastModified time.Time, checksum string, size int64) error {
+	app.masterLock.Lock()
+	defer app.masterLock.Unlock()
+
+	obj := State{
+		ETag:         eTag,
+		Size:         size,
+		Checksum:     checksum,
+		LastModified: lastModified,
+	}
+
+	bin, err := json.MarshalIndent(obj, "", "  ")
+	if err != nil {
+		return exerr.Wrap(err, "Failed to marshal state").Build()
+	}
+
+	err = os.WriteFile(app.stateFile, bin, 0644)
+	if err != nil {
+		return exerr.Wrap(err, "Failed to write state file").Build()
+	}
+
+	return nil
+}
+
 func (app *Application) calcLocalChecksum() (string, error) {
 	bin, err := os.ReadFile(app.dbFile)
 	if err != nil {
@@ -45,3 +77,24 @@ func (app *Application) calcLocalChecksum() (string, error) {
 
 	return cryptext.BytesSha256(bin), nil
 }
+
+func isKeepassRunning() bool {
+	proc, err := process.Processes()
+	if err != nil {
+		log.LogError("failed to query existing keepass process", err)
+		return false
+	}
+
+	for _, p := range proc {
+		name, err := p.Name()
+		if err != nil {
+			continue
+		}
+
+		if strings.ToLower(name) == "keepass" || strings.ToLower(name) == "keepassxc" {
+			return true
+		}
+	}
+
+	return false
+}