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package main
import (
"context"
"os/user"
"path"
"path/filepath"
"strings"
sr "tildegit.org/tjp/sliderule"
)
func usernameFromRouter(ctx context.Context) (string, bool) {
username, ok := sr.RouteParams(ctx)["username"]
return username, ok
}
func userFsRoute(ctx context.Context, route RouteDirective) (RouteDirective, bool) {
username, ok := usernameFromRouter(ctx)
if !ok {
return route, false
}
u, err := user.Lookup(username)
if err != nil {
return route, false
}
route.URLPath = strings.ReplaceAll(route.URLPath, "~", "~"+u.Username)
if strings.HasPrefix(route.FsPath, "~/") {
route.FsPath = filepath.Join(u.HomeDir, route.FsPath[2:])
} else {
route.FsPath = strings.ReplaceAll(route.FsPath, "/~/", "/"+u.Username+"/")
}
return route, true
}
func buildAndAddRoute(router *sr.Router, route RouteDirective, handlerf func(RouteDirective) sr.Handler) {
var (
urlpath string
handler sr.Handler
)
if strings.IndexByte(route.FsPath, '~') < 0 {
urlpath = route.URLPath
handler = handlerf(route)
} else {
urlpath = strings.Replace(route.URLPath, "~", "~:username", 1)
handler = sr.HandlerFunc(func(ctx context.Context, request *sr.Request) *sr.Response {
route, ok := userFsRoute(ctx, route)
if !ok {
return nil
}
return handlerf(route).Handle(ctx, request)
})
}
router.Route(urlpath, handler)
router.Route(path.Join(urlpath, "*"), handler)
}
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