feat: webdav for sharepoint online (#460)

drivers/webdav/odrvcookie/cookie.go

@@ -0,0 +1,44 @@
+package odrvcookie
+
+import (
+	"github.com/Xhofe/alist/utils/cookie"
+	"net/http"
+	"sync"
+	"time"
+)
+
+type SpCookie struct {
+	Cookie string
+	expire time.Time
+}
+
+func (sp SpCookie) IsExpire() bool {
+	return time.Now().Before(sp.expire)
+}
+
+var cookiesMap = struct {
+	sync.Mutex
+	m map[string]*SpCookie
+}{m: make(map[string]*SpCookie)}
+
+func GetCookie(username, password, siteUrl string) (string, error) {
+	cookiesMap.Lock()
+	defer cookiesMap.Unlock()
+	spCookie, ok := cookiesMap.m[username]
+	if ok {
+		if !spCookie.IsExpire() {
+			return spCookie.Cookie, nil
+		}
+	}
+	ca := New(username, password, siteUrl)
+	tokenConf, err := ca.Cookies()
+	if err != nil {
+		return "", err
+	}
+	spCookie = &SpCookie{
+		Cookie: cookie.ToString([]*http.Cookie{&tokenConf.RtFa, &tokenConf.FedAuth}),
+		expire: time.Now().Add(time.Hour * 12),
+	}
+	cookiesMap.m[username] = spCookie
+	return spCookie.Cookie, nil
+}