feat(alias): support proxy and direct together

internal/fs/link.go

@@ -2,9 +2,12 @@ package fs
 
 import (
 	"context"
+	"strings"
 
 	"github.com/alist-org/alist/v3/internal/model"
 	"github.com/alist-org/alist/v3/internal/op"
+	"github.com/alist-org/alist/v3/server/common"
+	"github.com/gin-gonic/gin"
 	"github.com/pkg/errors"
 )
 
@@ -13,5 +16,14 @@ func link(ctx context.Context, path string, args model.LinkArgs) (*model.Link, m
 	if err != nil {
 		return nil, nil, errors.WithMessage(err, "failed get storage")
 	}
-	return op.Link(ctx, storage, actualPath, args)
+	l, obj, err := op.Link(ctx, storage, actualPath, args)
+	if err != nil {
+		return nil, nil, errors.WithMessage(err, "failed link")
+	}
+	if l.URL != "" && !strings.HasPrefix(l.URL, "http://") && !strings.HasPrefix(l.URL, "https://") {
+		if c, ok := ctx.(*gin.Context); ok {
+			l.URL = common.GetApiUrl(c.Request) + l.URL
+		}
+	}
+	return l, obj, nil
 }