diff options
Diffstat (limited to 'vendor/github.com/prometheus/common/route/route.go')
-rw-r--r-- | vendor/github.com/prometheus/common/route/route.go | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/vendor/github.com/prometheus/common/route/route.go b/vendor/github.com/prometheus/common/route/route.go deleted file mode 100644 index bb4688173..000000000 --- a/vendor/github.com/prometheus/common/route/route.go +++ /dev/null @@ -1,100 +0,0 @@ -package route - -import ( - "net/http" - - "github.com/julienschmidt/httprouter" - "golang.org/x/net/context" -) - -type param string - -// Param returns param p for the context. -func Param(ctx context.Context, p string) string { - return ctx.Value(param(p)).(string) -} - -// WithParam returns a new context with param p set to v. -func WithParam(ctx context.Context, p, v string) context.Context { - return context.WithValue(ctx, param(p), v) -} - -// Router wraps httprouter.Router and adds support for prefixed sub-routers -// and per-request context injections. -type Router struct { - rtr *httprouter.Router - prefix string -} - -// New returns a new Router. -func New() *Router { - return &Router{ - rtr: httprouter.New(), - } -} - -// WithPrefix returns a router that prefixes all registered routes with prefix. -func (r *Router) WithPrefix(prefix string) *Router { - return &Router{rtr: r.rtr, prefix: r.prefix + prefix} -} - -// handle turns a HandlerFunc into an httprouter.Handle. -func (r *Router) handle(h http.HandlerFunc) httprouter.Handle { - return func(w http.ResponseWriter, req *http.Request, params httprouter.Params) { - ctx, cancel := context.WithCancel(req.Context()) - defer cancel() - - for _, p := range params { - ctx = context.WithValue(ctx, param(p.Key), p.Value) - } - h(w, req.WithContext(ctx)) - } -} - -// Get registers a new GET route. -func (r *Router) Get(path string, h http.HandlerFunc) { - r.rtr.GET(r.prefix+path, r.handle(h)) -} - -// Options registers a new OPTIONS route. -func (r *Router) Options(path string, h http.HandlerFunc) { - r.rtr.OPTIONS(r.prefix+path, r.handle(h)) -} - -// Del registers a new DELETE route. -func (r *Router) Del(path string, h http.HandlerFunc) { - r.rtr.DELETE(r.prefix+path, r.handle(h)) -} - -// Put registers a new PUT route. -func (r *Router) Put(path string, h http.HandlerFunc) { - r.rtr.PUT(r.prefix+path, r.handle(h)) -} - -// Post registers a new POST route. -func (r *Router) Post(path string, h http.HandlerFunc) { - r.rtr.POST(r.prefix+path, r.handle(h)) -} - -// Redirect takes an absolute path and sends an internal HTTP redirect for it, -// prefixed by the router's path prefix. Note that this method does not include -// functionality for handling relative paths or full URL redirects. -func (r *Router) Redirect(w http.ResponseWriter, req *http.Request, path string, code int) { - http.Redirect(w, req, r.prefix+path, code) -} - -// ServeHTTP implements http.Handler. -func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) { - r.rtr.ServeHTTP(w, req) -} - -// FileServe returns a new http.HandlerFunc that serves files from dir. -// Using routes must provide the *filepath parameter. -func FileServe(dir string) http.HandlerFunc { - fs := http.FileServer(http.Dir(dir)) - - return func(w http.ResponseWriter, r *http.Request) { - r.URL.Path = Param(r.Context(), "filepath") - fs.ServeHTTP(w, r) - } -} |