1 files changed, 425 insertions, 0 deletions
diff --git a/vendor/_nuts/github.com/go-martini/martini/router.go b/vendor/_nuts/github.com/go-martini/martini/router.go
new file mode 100644
index 0000000..3abbabb
--- /dev/null
+++ b/vendor/_nuts/github.com/go-martini/martini/router.go
@@ -0,0 +1,425 @@
+package martini
+
+import (
+	"fmt"
+	"net/http"
+	"reflect"
+	"regexp"
+	"strconv"
+	"sync"
+)
+
+// Params is a map of name/value pairs for named routes. An instance of martini.Params is available to be injected into any route handler.
+type Params map[string]string
+
+// Router is Martini's de-facto routing interface. Supports HTTP verbs, stacked handlers, and dependency injection.
+type Router interface {
+	Routes
+
+	// Group adds a group where related routes can be added.
+	Group(string, func(Router), ...Handler)
+	// Get adds a route for a HTTP GET request to the specified matching pattern.
+	Get(string, ...Handler) Route
+	// Patch adds a route for a HTTP PATCH request to the specified matching pattern.
+	Patch(string, ...Handler) Route
+	// Post adds a route for a HTTP POST request to the specified matching pattern.
+	Post(string, ...Handler) Route
+	// Put adds a route for a HTTP PUT request to the specified matching pattern.
+	Put(string, ...Handler) Route
+	// Delete adds a route for a HTTP DELETE request to the specified matching pattern.
+	Delete(string, ...Handler) Route
+	// Options adds a route for a HTTP OPTIONS request to the specified matching pattern.
+	Options(string, ...Handler) Route
+	// Head adds a route for a HTTP HEAD request to the specified matching pattern.
+	Head(string, ...Handler) Route
+	// Any adds a route for any HTTP method request to the specified matching pattern.
+	Any(string, ...Handler) Route
+	// AddRoute adds a route for a given HTTP method request to the specified matching pattern.
+	AddRoute(string, string, ...Handler) Route
+
+	// NotFound sets the handlers that are called when a no route matches a request. Throws a basic 404 by default.
+	NotFound(...Handler)
+
+	// Handle is the entry point for routing. This is used as a martini.Handler
+	Handle(http.ResponseWriter, *http.Request, Context)
+}
+
+type router struct {
+	routes     []*route
+	notFounds  []Handler
+	groups     []group
+	routesLock sync.RWMutex
+}
+
+type group struct {
+	pattern  string
+	handlers []Handler
+}
+
+// NewRouter creates a new Router instance.
+// If you aren't using ClassicMartini, then you can add Routes as a
+// service with:
+//
+//	m := martini.New()
+//	r := martini.NewRouter()
+//	m.MapTo(r, (*martini.Routes)(nil))
+//
+// If you are using ClassicMartini, then this is done for you.
+func NewRouter() Router {
+	return &router{notFounds: []Handler{http.NotFound}, groups: make([]group, 0)}
+}
+
+func (r *router) Group(pattern string, fn func(Router), h ...Handler) {
+	r.groups = append(r.groups, group{pattern, h})
+	fn(r)
+	r.groups = r.groups[:len(r.groups)-1]
+}
+
+func (r *router) Get(pattern string, h ...Handler) Route {
+	return r.addRoute("GET", pattern, h)
+}
+
+func (r *router) Patch(pattern string, h ...Handler) Route {
+	return r.addRoute("PATCH", pattern, h)
+}
+
+func (r *router) Post(pattern string, h ...Handler) Route {
+	return r.addRoute("POST", pattern, h)
+}
+
+func (r *router) Put(pattern string, h ...Handler) Route {
+	return r.addRoute("PUT", pattern, h)
+}
+
+func (r *router) Delete(pattern string, h ...Handler) Route {
+	return r.addRoute("DELETE", pattern, h)
+}
+
+func (r *router) Options(pattern string, h ...Handler) Route {
+	return r.addRoute("OPTIONS", pattern, h)
+}
+
+func (r *router) Head(pattern string, h ...Handler) Route {
+	return r.addRoute("HEAD", pattern, h)
+}
+
+func (r *router) Any(pattern string, h ...Handler) Route {
+	return r.addRoute("*", pattern, h)
+}
+
+func (r *router) AddRoute(method, pattern string, h ...Handler) Route {
+	return r.addRoute(method, pattern, h)
+}
+
+func (r *router) Handle(res http.ResponseWriter, req *http.Request, context Context) {
+	bestMatch := NoMatch
+	var bestVals map[string]string
+	var bestRoute *route
+	for _, route := range r.getRoutes() {
+		match, vals := route.Match(req.Method, req.URL.Path)
+		if match.BetterThan(bestMatch) {
+			bestMatch = match
+			bestVals = vals
+			bestRoute = route
+			if match == ExactMatch {
+				break
+			}
+		}
+	}
+	if bestMatch != NoMatch {
+		params := Params(bestVals)
+		context.Map(params)
+		bestRoute.Handle(context, res)
+		return
+	}
+
+	// no routes exist, 404
+	c := &routeContext{context, 0, r.notFounds}
+	context.MapTo(c, (*Context)(nil))
+	c.run()
+}
+
+func (r *router) NotFound(handler ...Handler) {
+	r.notFounds = handler
+}
+
+func (r *router) addRoute(method string, pattern string, handlers []Handler) *route {
+	if len(r.groups) > 0 {
+		groupPattern := ""
+		h := make([]Handler, 0)
+		for _, g := range r.groups {
+			groupPattern += g.pattern
+			h = append(h, g.handlers...)
+		}
+
+		pattern = groupPattern + pattern
+		h = append(h, handlers...)
+		handlers = h
+	}
+
+	route := newRoute(method, pattern, handlers)
+	route.Validate()
+	r.appendRoute(route)
+	return route
+}
+
+func (r *router) appendRoute(rt *route) {
+	r.routesLock.Lock()
+	defer r.routesLock.Unlock()
+	r.routes = append(r.routes, rt)
+}
+
+func (r *router) getRoutes() []*route {
+	r.routesLock.RLock()
+	defer r.routesLock.RUnlock()
+	return r.routes[:]
+}
+
+func (r *router) findRoute(name string) *route {
+	for _, route := range r.getRoutes() {
+		if route.name == name {
+			return route
+		}
+	}
+
+	return nil
+}
+
+// Route is an interface representing a Route in Martini's routing layer.
+type Route interface {
+	// URLWith returns a rendering of the Route's url with the given string params.
+	URLWith([]string) string
+	// Name sets a name for the route.
+	Name(string)
+	// GetName returns the name of the route.
+	GetName() string
+	// Pattern returns the pattern of the route.
+	Pattern() string
+	// Method returns the method of the route.
+	Method() string
+}
+
+type route struct {
+	method   string
+	regex    *regexp.Regexp
+	handlers []Handler
+	pattern  string
+	name     string
+}
+
+var routeReg1 = regexp.MustCompile(`:[^/#?()\.\\]+`)
+var routeReg2 = regexp.MustCompile(`\*\*`)
+
+func newRoute(method string, pattern string, handlers []Handler) *route {
+	route := route{method, nil, handlers, pattern, ""}
+	pattern = routeReg1.ReplaceAllStringFunc(pattern, func(m string) string {
+		return fmt.Sprintf(`(?P<%s>[^/#?]+)`, m[1:])
+	})
+	var index int
+	pattern = routeReg2.ReplaceAllStringFunc(pattern, func(m string) string {
+		index++
+		return fmt.Sprintf(`(?P<_%d>[^#?]*)`, index)
+	})
+	pattern += `\/?`
+	route.regex = regexp.MustCompile(pattern)
+	return &route
+}
+
+type RouteMatch int
+
+const (
+	NoMatch RouteMatch = iota
+	StarMatch
+	OverloadMatch
+	ExactMatch
+)
+
+//Higher number = better match
+func (r RouteMatch) BetterThan(o RouteMatch) bool {
+	return r > o
+}
+
+func (r route) MatchMethod(method string) RouteMatch {
+	switch {
+	case method == r.method:
+		return ExactMatch
+	case method == "HEAD" && r.method == "GET":
+		return OverloadMatch
+	case r.method == "*":
+		return StarMatch
+	default:
+		return NoMatch
+	}
+}
+
+func (r route) Match(method string, path string) (RouteMatch, map[string]string) {
+	// add Any method matching support
+	match := r.MatchMethod(method)
+	if match == NoMatch {
+		return match, nil
+	}
+
+	matches := r.regex.FindStringSubmatch(path)
+	if len(matches) > 0 && matches[0] == path {
+		params := make(map[string]string)
+		for i, name := range r.regex.SubexpNames() {
+			if len(name) > 0 {
+				params[name] = matches[i]
+			}
+		}
+		return match, params
+	}
+	return NoMatch, nil
+}
+
+func (r *route) Validate() {
+	for _, handler := range r.handlers {
+		validateHandler(handler)
+	}
+}
+
+func (r *route) Handle(c Context, res http.ResponseWriter) {
+	context := &routeContext{c, 0, r.handlers}
+	c.MapTo(context, (*Context)(nil))
+	c.MapTo(r, (*Route)(nil))
+	context.run()
+}
+
+var urlReg = regexp.MustCompile(`:[^/#?()\.\\]+|\(\?P<[a-zA-Z0-9]+>.*\)`)
+
+// URLWith returns the url pattern replacing the parameters for its values
+func (r *route) URLWith(args []string) string {
+	if len(args) > 0 {
+		argCount := len(args)
+		i := 0
+		url := urlReg.ReplaceAllStringFunc(r.pattern, func(m string) string {
+			var val interface{}
+			if i < argCount {
+				val = args[i]
+			} else {
+				val = m
+			}
+			i += 1
+			return fmt.Sprintf(`%v`, val)
+		})
+
+		return url
+	}
+	return r.pattern
+}
+
+func (r *route) Name(name string) {
+	r.name = name
+}
+
+func (r *route) GetName() string {
+	return r.name
+}
+
+func (r *route) Pattern() string {
+	return r.pattern
+}
+
+func (r *route) Method() string {
+	return r.method
+}
+
+// Routes is a helper service for Martini's routing layer.
+type Routes interface {
+	// URLFor returns a rendered URL for the given route. Optional params can be passed to fulfill named parameters in the route.
+	URLFor(name string, params ...interface{}) string
+	// MethodsFor returns an array of methods available for the path
+	MethodsFor(path string) []string
+	// All returns an array with all the routes in the router.
+	All() []Route
+}
+
+// URLFor returns the url for the given route name.
+func (r *router) URLFor(name string, params ...interface{}) string {
+	route := r.findRoute(name)
+
+	if route == nil {
+		panic("route not found")
+	}
+
+	var args []string
+	for _, param := range params {
+		switch v := param.(type) {
+		case int:
+			args = append(args, strconv.FormatInt(int64(v), 10))
+		case string:
+			args = append(args, v)
+		default:
+			if v != nil {
+				panic("Arguments passed to URLFor must be integers or strings")
+			}
+		}
+	}
+
+	return route.URLWith(args)
+}
+
+func (r *router) All() []Route {
+	routes := r.getRoutes()
+	var ri = make([]Route, len(routes))
+
+	for i, route := range routes {
+		ri[i] = Route(route)
+	}
+
+	return ri
+}
+
+func hasMethod(methods []string, method string) bool {
+	for _, v := range methods {
+		if v == method {
+			return true
+		}
+	}
+	return false
+}
+
+// MethodsFor returns all methods available for path
+func (r *router) MethodsFor(path string) []string {
+	methods := []string{}
+	for _, route := range r.getRoutes() {
+		matches := route.regex.FindStringSubmatch(path)
+		if len(matches) > 0 && matches[0] == path && !hasMethod(methods, route.method) {
+			methods = append(methods, route.method)
+		}
+	}
+	return methods
+}
+
+type routeContext struct {
+	Context
+	index    int
+	handlers []Handler
+}
+
+func (r *routeContext) Next() {
+	r.index += 1
+	r.run()
+}
+
+func (r *routeContext) run() {
+	for r.index < len(r.handlers) {
+		handler := r.handlers[r.index]
+		vals, err := r.Invoke(handler)
+		if err != nil {
+			panic(err)
+		}
+		r.index += 1
+
+		// if the handler returned something, write it to the http response
+		if len(vals) > 0 {
+			ev := r.Get(reflect.TypeOf(ReturnHandler(nil)))
+			handleReturn := ev.Interface().(ReturnHandler)
+			handleReturn(r, vals)
+		}
+
+		if r.Written() {
+			return
+		}
+	}
+}