Registering accounts is working

1 files changed, 42 insertions, 0 deletions

diff --git a/timelocs.go b/timelocs.go
new file mode 100644
index 0000000..bb04070
--- /dev/null
+++ b/timelocs.go
@@ -0,0 +1,42 @@
+package main
+
+import (
+	"archive/zip"
+	"log"
+	"path"
+	"runtime"
+	"sort"
+	"sync"
+)
+
+var timeLocs []string
+var tlOnce sync.Once
+
+func listTimeLocations() ([]string, error) {
+	zoneinfoZip := path.Join(runtime.GOROOT(), "lib", "time", "zoneinfo.zip")
+	z, err := zip.OpenReader(zoneinfoZip)
+	if err != nil {
+		return nil, err
+	}
+	defer z.Close()
+
+	locs := []string{}
+	for _, f := range z.File {
+		if f.Name[len(f.Name)-1] == '/' {
+			continue
+		}
+		locs = append(locs, f.Name)
+	}
+
+	sort.Strings(locs)
+	return locs, nil
+}
+
+func loadTimeLocs() {
+	tlOnce.Do(func() {
+		var err error
+		if timeLocs, err = listTimeLocations(); err != nil {
+			log.Fatalf("Could not load time locations: %s", err)
+		}
+	})
+}