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Update mux. 

We had some issues with mux/gorilla in our vendoring. This should fix it.
pull/2362/head
dlorenc 2017-12-23 09:34:34 -08:00
parent 9934697735
commit 22fd03d0b2
18 changed files with 1825 additions and 627 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Godeps/Godeps.json generated
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@ -1888,7 +1888,8 @@
},
{
"ImportPath": "github.com/gorilla/mux",
"Rev": "8096f47503459bcc74d1f4c487b7e6e42e5746b5"
"Comment": "v1.6.0-6-g5ab525f",
"Rev": "5ab525f4fb1678e197ae59401e9050fa0b6cb5fd"
},
{
"ImportPath": "github.com/gorilla/websocket",
@ -2456,7 +2457,8 @@
},
{
"ImportPath": "github.com/spf13/viper",
"Rev": "7fb2782df3d83e0036cc89f461ed0422628776f4"
"Comment": "v1.0.0",
"Rev": "25b30aa063fc18e48662b86996252eabdcf2f0c7"
},
{
"ImportPath": "github.com/square/go-jose",

5
hack/godeps/godep-save.sh
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@ -33,6 +33,11 @@ pushd ${GOPATH}/src/github.com/spf13/viper >/dev/null
git checkout 25b30aa063fc18e48662b86996252eabdcf2f0c7
popd >/dev/null
# We use a different version of mux than Kubernetes.
pushd ${GOPATH}/src/github.com/gorilla/mux >/dev/null
git checkout 5ab525f4fb1678e197ae59401e9050fa0b6cb5fd
popd >/dev/null
godep save ./...
cp -r ${KUBE_ROOT}/pkg/generated/openapi ${MINIKUBE_ROOT}/vendor/k8s.io/kubernetes/pkg/generated/

143
vendor/github.com/gorilla/context/context.go generated vendored
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@ -1,143 +0,0 @@
// Copyright 2012 The Gorilla Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package context
import (
"net/http"
"sync"
"time"
)
var (
mutex sync.RWMutex
data = make(map[*http.Request]map[interface{}]interface{})
datat = make(map[*http.Request]int64)
)
// Set stores a value for a given key in a given request.
func Set(r *http.Request, key, val interface{}) {
mutex.Lock()
if data[r] == nil {
data[r] = make(map[interface{}]interface{})
datat[r] = time.Now().Unix()
}
data[r][key] = val
mutex.Unlock()
}
// Get returns a value stored for a given key in a given request.
func Get(r *http.Request, key interface{}) interface{} {
mutex.RLock()
if ctx := data[r]; ctx != nil {
value := ctx[key]
mutex.RUnlock()
return value
}
mutex.RUnlock()
return nil
}
// GetOk returns stored value and presence state like multi-value return of map access.
func GetOk(r *http.Request, key interface{}) (interface{}, bool) {
mutex.RLock()
if _, ok := data[r]; ok {
value, ok := data[r][key]
mutex.RUnlock()
return value, ok
}
mutex.RUnlock()
return nil, false
}
// GetAll returns all stored values for the request as a map. Nil is returned for invalid requests.
func GetAll(r *http.Request) map[interface{}]interface{} {
mutex.RLock()
if context, ok := data[r]; ok {
result := make(map[interface{}]interface{}, len(context))
for k, v := range context {
result[k] = v
}
mutex.RUnlock()
return result
}
mutex.RUnlock()
return nil
}
// GetAllOk returns all stored values for the request as a map and a boolean value that indicates if
// the request was registered.
func GetAllOk(r *http.Request) (map[interface{}]interface{}, bool) {
mutex.RLock()
context, ok := data[r]
result := make(map[interface{}]interface{}, len(context))
for k, v := range context {
result[k] = v
}
mutex.RUnlock()
return result, ok
}
// Delete removes a value stored for a given key in a given request.
func Delete(r *http.Request, key interface{}) {
mutex.Lock()
if data[r] != nil {
delete(data[r], key)
}
mutex.Unlock()
}
// Clear removes all values stored for a given request.
//
// This is usually called by a handler wrapper to clean up request
// variables at the end of a request lifetime. See ClearHandler().
func Clear(r *http.Request) {
mutex.Lock()
clear(r)
mutex.Unlock()
}
// clear is Clear without the lock.
func clear(r *http.Request) {
delete(data, r)
delete(datat, r)
}
// Purge removes request data stored for longer than maxAge, in seconds.
// It returns the amount of requests removed.
//
// If maxAge <= 0, all request data is removed.
//
// This is only used for sanity check: in case context cleaning was not
// properly set some request data can be kept forever, consuming an increasing
// amount of memory. In case this is detected, Purge() must be called
// periodically until the problem is fixed.
func Purge(maxAge int) int {
mutex.Lock()
count := 0
if maxAge <= 0 {
count = len(data)
data = make(map[*http.Request]map[interface{}]interface{})
datat = make(map[*http.Request]int64)
} else {
min := time.Now().Unix() - int64(maxAge)
for r := range data {
if datat[r] < min {
clear(r)
count++
}
}
}
mutex.Unlock()
return count
}
// ClearHandler wraps an http.Handler and clears request values at the end
// of a request lifetime.
func ClearHandler(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
defer Clear(r)
h.ServeHTTP(w, r)
})
}

25
vendor/github.com/gorilla/mux/.travis.yml generated vendored
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@ -1,7 +1,22 @@
language: go
sudo: false
go:
- 1.0
- 1.1
- 1.2
- tip
matrix:
include:
- go: 1.5
- go: 1.6
- go: 1.7
- go: 1.8
- go: 1.9
- go: tip
allow_failures:
- go: tip
install:
- # Skip
script:
- go get -t -v ./...
- diff -u <(echo -n) <(gofmt -d .)
- go tool vet .
- go test -v -race ./...

11
vendor/github.com/gorilla/mux/ISSUE_TEMPLATE.md generated vendored Normal file
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@ -0,0 +1,11 @@
**What version of Go are you running?** (Paste the output of `go version`)
**What version of gorilla/mux are you at?** (Paste the output of `git rev-parse HEAD` inside `$GOPATH/src/github.com/gorilla/mux`)
**Describe your problem** (and what you have tried so far)
**Paste a minimal, runnable, reproduction of your issue below** (use backticks to format it)

416
vendor/github.com/gorilla/mux/README.md generated vendored
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@ -1,7 +1,415 @@
mux
gorilla/mux
===
[![Build Status](https://travis-ci.org/gorilla/mux.png?branch=master)](https://travis-ci.org/gorilla/mux)
[![GoDoc](https://godoc.org/github.com/gorilla/mux?status.svg)](https://godoc.org/github.com/gorilla/mux)
[![Build Status](https://travis-ci.org/gorilla/mux.svg?branch=master)](https://travis-ci.org/gorilla/mux)
[![Sourcegraph](https://sourcegraph.com/github.com/gorilla/mux/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/mux?badge)
gorilla/mux is a powerful URL router and dispatcher.
![Gorilla Logo](http://www.gorillatoolkit.org/static/images/gorilla-icon-64.png)
Read the full documentation here: http://www.gorillatoolkit.org/pkg/mux
http://www.gorillatoolkit.org/pkg/mux
Package `gorilla/mux` implements a request router and dispatcher for matching incoming requests to
their respective handler.
The name mux stands for "HTTP request multiplexer". Like the standard `http.ServeMux`, `mux.Router` matches incoming requests against a list of registered routes and calls a handler for the route that matches the URL or other conditions. The main features are:
* It implements the `http.Handler` interface so it is compatible with the standard `http.ServeMux`.
* Requests can be matched based on URL host, path, path prefix, schemes, header and query values, HTTP methods or using custom matchers.
* URL hosts, paths and query values can have variables with an optional regular expression.
* Registered URLs can be built, or "reversed", which helps maintaining references to resources.
* Routes can be used as subrouters: nested routes are only tested if the parent route matches. This is useful to define groups of routes that share common conditions like a host, a path prefix or other repeated attributes. As a bonus, this optimizes request matching.
---
* [Install](#install)
* [Examples](#examples)
* [Matching Routes](#matching-routes)
* [Static Files](#static-files)
* [Registered URLs](#registered-urls)
* [Walking Routes](#walking-routes)
* [Full Example](#full-example)
---
## Install
With a [correctly configured](https://golang.org/doc/install#testing) Go toolchain:
```sh
go get -u github.com/gorilla/mux
```
## Examples
Let's start registering a couple of URL paths and handlers:
```go
func main() {
r := mux.NewRouter()
r.HandleFunc("/", HomeHandler)
r.HandleFunc("/products", ProductsHandler)
r.HandleFunc("/articles", ArticlesHandler)
http.Handle("/", r)
}
```
Here we register three routes mapping URL paths to handlers. This is equivalent to how `http.HandleFunc()` works: if an incoming request URL matches one of the paths, the corresponding handler is called passing (`http.ResponseWriter`, `*http.Request`) as parameters.
Paths can have variables. They are defined using the format `{name}` or `{name:pattern}`. If a regular expression pattern is not defined, the matched variable will be anything until the next slash. For example:
```go
r := mux.NewRouter()
r.HandleFunc("/products/{key}", ProductHandler)
r.HandleFunc("/articles/{category}/", ArticlesCategoryHandler)
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler)
```
The names are used to create a map of route variables which can be retrieved calling `mux.Vars()`:
```go
func ArticlesCategoryHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, "Category: %v\n", vars["category"])
}
```
And this is all you need to know about the basic usage. More advanced options are explained below.
### Matching Routes
Routes can also be restricted to a domain or subdomain. Just define a host pattern to be matched. They can also have variables:
```go
r := mux.NewRouter()
// Only matches if domain is "www.example.com".
r.Host("www.example.com")
// Matches a dynamic subdomain.
r.Host("{subdomain:[a-z]+}.domain.com")
```
There are several other matchers that can be added. To match path prefixes:
```go
r.PathPrefix("/products/")
```
...or HTTP methods:
```go
r.Methods("GET", "POST")
```
...or URL schemes:
```go
r.Schemes("https")
```
...or header values:
```go
r.Headers("X-Requested-With", "XMLHttpRequest")
```
...or query values:
```go
r.Queries("key", "value")
```
...or to use a custom matcher function:
```go
r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool {
return r.ProtoMajor == 0
})
```
...and finally, it is possible to combine several matchers in a single route:
```go
r.HandleFunc("/products", ProductsHandler).
Host("www.example.com").
Methods("GET").
Schemes("http")
```
Routes are tested in the order they were added to the router. If two routes match, the first one wins:
```go
r := mux.NewRouter()
r.HandleFunc("/specific", specificHandler)
r.PathPrefix("/").Handler(catchAllHandler)
```
Setting the same matching conditions again and again can be boring, so we have a way to group several routes that share the same requirements. We call it "subrouting".
For example, let's say we have several URLs that should only match when the host is `www.example.com`. Create a route for that host and get a "subrouter" from it:
```go
r := mux.NewRouter()
s := r.Host("www.example.com").Subrouter()
```
Then register routes in the subrouter:
```go
s.HandleFunc("/products/", ProductsHandler)
s.HandleFunc("/products/{key}", ProductHandler)
s.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler)
```
The three URL paths we registered above will only be tested if the domain is `www.example.com`, because the subrouter is tested first. This is not only convenient, but also optimizes request matching. You can create subrouters combining any attribute matchers accepted by a route.
Subrouters can be used to create domain or path "namespaces": you define subrouters in a central place and then parts of the app can register its paths relatively to a given subrouter.
There's one more thing about subroutes. When a subrouter has a path prefix, the inner routes use it as base for their paths:
```go
r := mux.NewRouter()
s := r.PathPrefix("/products").Subrouter()
// "/products/"
s.HandleFunc("/", ProductsHandler)
// "/products/{key}/"
s.HandleFunc("/{key}/", ProductHandler)
// "/products/{key}/details"
s.HandleFunc("/{key}/details", ProductDetailsHandler)
```
### Listing Routes
Routes on a mux can be listed using the Router.Walk method—useful for generating documentation:
```go
package main
import (
"fmt"
"net/http"
"strings"
"github.com/gorilla/mux"
)
func handler(w http.ResponseWriter, r *http.Request) {
return
}
func main() {
r := mux.NewRouter()
r.HandleFunc("/", handler)
r.HandleFunc("/products", handler).Methods("POST")
r.HandleFunc("/articles", handler).Methods("GET")
r.HandleFunc("/articles/{id}", handler).Methods("GET", "PUT")
r.HandleFunc("/authors", handler).Queries("surname", "{surname}")
r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
t, err := route.GetPathTemplate()
if err != nil {
return err
}
qt, err := route.GetQueriesTemplates()
if err != nil {
return err
}
// p will contain regular expression is compatible with regular expression in Perl, Python, and other languages.
// for instance the regular expression for path '/articles/{id}' will be '^/articles/(?P<v0>[^/]+)$'
p, err := route.GetPathRegexp()
if err != nil {
return err
}
// qr will contain a list of regular expressions with the same semantics as GetPathRegexp,
// just applied to the Queries pairs instead, e.g., 'Queries("surname", "{surname}") will return
// {"^surname=(?P<v0>.*)$}. Where each combined query pair will have an entry in the list.
qr, err := route.GetQueriesRegexp()
if err != nil {
return err
}
m, err := route.GetMethods()
if err != nil {
return err
}
fmt.Println(strings.Join(m, ","), strings.Join(qt, ","), strings.Join(qr, ","), t, p)
return nil
})
http.Handle("/", r)
}
```
### Static Files
Note that the path provided to `PathPrefix()` represents a "wildcard": calling
`PathPrefix("/static/").Handler(...)` means that the handler will be passed any
request that matches "/static/*". This makes it easy to serve static files with mux:
```go
func main() {
var dir string
flag.StringVar(&dir, "dir", ".", "the directory to serve files from. Defaults to the current dir")
flag.Parse()
r := mux.NewRouter()
// This will serve files under http://localhost:8000/static/<filename>
r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(dir))))
srv := &http.Server{
Handler: r,
Addr: "127.0.0.1:8000",
// Good practice: enforce timeouts for servers you create!
WriteTimeout: 15 * time.Second,
ReadTimeout: 15 * time.Second,
}
log.Fatal(srv.ListenAndServe())
}
```
### Registered URLs
Now let's see how to build registered URLs.
Routes can be named. All routes that define a name can have their URLs built, or "reversed". We define a name calling `Name()` on a route. For example:
```go
r := mux.NewRouter()
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
Name("article")
```
To build a URL, get the route and call the `URL()` method, passing a sequence of key/value pairs for the route variables. For the previous route, we would do:
```go
url, err := r.Get("article").URL("category", "technology", "id", "42")
```
...and the result will be a `url.URL` with the following path:
```
"/articles/technology/42"
```
This also works for host and query value variables:
```go
r := mux.NewRouter()
r.Host("{subdomain}.domain.com").
Path("/articles/{category}/{id:[0-9]+}").
Queries("filter", "{filter}").
HandlerFunc(ArticleHandler).
Name("article")
// url.String() will be "http://news.domain.com/articles/technology/42?filter=gorilla"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42",
"filter", "gorilla")
```
All variables defined in the route are required, and their values must conform to the corresponding patterns. These requirements guarantee that a generated URL will always match a registered route -- the only exception is for explicitly defined "build-only" routes which never match.
Regex support also exists for matching Headers within a route. For example, we could do:
```go
r.HeadersRegexp("Content-Type", "application/(text|json)")
```
...and the route will match both requests with a Content-Type of `application/json` as well as `application/text`
There's also a way to build only the URL host or path for a route: use the methods `URLHost()` or `URLPath()` instead. For the previous route, we would do:
```go
// "http://news.domain.com/"
host, err := r.Get("article").URLHost("subdomain", "news")
// "/articles/technology/42"
path, err := r.Get("article").URLPath("category", "technology", "id", "42")
```
And if you use subrouters, host and path defined separately can be built as well:
```go
r := mux.NewRouter()
s := r.Host("{subdomain}.domain.com").Subrouter()
s.Path("/articles/{category}/{id:[0-9]+}").
HandlerFunc(ArticleHandler).
Name("article")
// "http://news.domain.com/articles/technology/42"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42")
```
### Walking Routes
The `Walk` function on `mux.Router` can be used to visit all of the routes that are registered on a router. For example,
the following prints all of the registered routes:
```go
r := mux.NewRouter()
r.HandleFunc("/", handler)
r.HandleFunc("/products", handler).Methods("POST")
r.HandleFunc("/articles", handler).Methods("GET")
r.HandleFunc("/articles/{id}", handler).Methods("GET", "PUT")
r.HandleFunc("/authors", handler).Queries("surname", "{surname}")
r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
t, err := route.GetPathTemplate()
if err != nil {
return err
}
qt, err := route.GetQueriesTemplates()
if err != nil {
return err
}
// p will contain a regular expression that is compatible with regular expressions in Perl, Python, and other languages.
// For example, the regular expression for path '/articles/{id}' will be '^/articles/(?P<v0>[^/]+)$'.
p, err := route.GetPathRegexp()
if err != nil {
return err
}
// qr will contain a list of regular expressions with the same semantics as GetPathRegexp,
// just applied to the Queries pairs instead, e.g., 'Queries("surname", "{surname}") will return
// {"^surname=(?P<v0>.*)$}. Where each combined query pair will have an entry in the list.
qr, err := route.GetQueriesRegexp()
if err != nil {
return err
}
m, err := route.GetMethods()
if err != nil {
return err
}
fmt.Println(strings.Join(m, ","), strings.Join(qt, ","), strings.Join(qr, ","), t, p)
return nil
})
```
## Full Example
Here's a complete, runnable example of a small `mux` based server:
```go
package main
import (
"net/http"
"log"
"github.com/gorilla/mux"
)
func YourHandler(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Gorilla!\n"))
}
func main() {
r := mux.NewRouter()
// Routes consist of a path and a handler function.
r.HandleFunc("/", YourHandler)
// Bind to a port and pass our router in
log.Fatal(http.ListenAndServe(":8000", r))
}
```
## License
BSD licensed. See the LICENSE file for details.

26
vendor/github.com/gorilla/mux/context_gorilla.go generated vendored Normal file
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@ -0,0 +1,26 @@
// +build !go1.7
package mux
import (
"net/http"
"github.com/gorilla/context"
)
func contextGet(r *http.Request, key interface{}) interface{} {
return context.Get(r, key)
}
func contextSet(r *http.Request, key, val interface{}) *http.Request {
if val == nil {
return r
}
context.Set(r, key, val)
return r
}
func contextClear(r *http.Request) {
context.Clear(r)
}

24
vendor/github.com/gorilla/mux/context_native.go generated vendored Normal file
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@ -0,0 +1,24 @@
// +build go1.7
package mux
import (
"context"
"net/http"
)
func contextGet(r *http.Request, key interface{}) interface{} {
return r.Context().Value(key)
}
func contextSet(r *http.Request, key, val interface{}) *http.Request {
if val == nil {
return r
}
return r.WithContext(context.WithValue(r.Context(), key, val))
}
func contextClear(r *http.Request) {
return
}

75
vendor/github.com/gorilla/mux/doc.go generated vendored
View File

@ -3,7 +3,7 @@
// license that can be found in the LICENSE file.
/*
Package gorilla/mux implements a request router and dispatcher.
Package mux implements a request router and dispatcher.
The name mux stands for "HTTP request multiplexer". Like the standard
http.ServeMux, mux.Router matches incoming requests against a list of
@ -12,8 +12,8 @@ or other conditions. The main features are:
* Requests can be matched based on URL host, path, path prefix, schemes,
header and query values, HTTP methods or using custom matchers.
* URL hosts and paths can have variables with an optional regular
expression.
* URL hosts, paths and query values can have variables with an optional
regular expression.
* Registered URLs can be built, or "reversed", which helps maintaining
references to resources.
* Routes can be used as subrouters: nested routes are only tested if the
@ -47,12 +47,21 @@ variable will be anything until the next slash. For example:
r.HandleFunc("/articles/{category}/", ArticlesCategoryHandler)
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler)
Groups can be used inside patterns, as long as they are non-capturing (?:re). For example:
r.HandleFunc("/articles/{category}/{sort:(?:asc|desc|new)}", ArticlesCategoryHandler)
The names are used to create a map of route variables which can be retrieved
calling mux.Vars():
vars := mux.Vars(request)
category := vars["category"]
Note that if any capturing groups are present, mux will panic() during parsing. To prevent
this, convert any capturing groups to non-capturing, e.g. change "/{sort:(asc|desc)}" to
"/{sort:(?:asc|desc)}". This is a change from prior versions which behaved unpredictably
when capturing groups were present.
And this is all you need to know about the basic usage. More advanced options
are explained below.
@ -60,8 +69,8 @@ Routes can also be restricted to a domain or subdomain. Just define a host
pattern to be matched. They can also have variables:
r := mux.NewRouter()
// Only matches if domain is "www.domain.com".
r.Host("www.domain.com")
// Only matches if domain is "www.example.com".
r.Host("www.example.com")
// Matches a dynamic subdomain.
r.Host("{subdomain:[a-z]+}.domain.com")
@ -89,12 +98,12 @@ There are several other matchers that can be added. To match path prefixes:
r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool {
return r.ProtoMajor == 0
})
})
...and finally, it is possible to combine several matchers in a single route:
r.HandleFunc("/products", ProductsHandler).
Host("www.domain.com").
Host("www.example.com").
Methods("GET").
Schemes("http")
@ -103,11 +112,11 @@ a way to group several routes that share the same requirements.
We call it "subrouting".
For example, let's say we have several URLs that should only match when the
host is "www.domain.com". Create a route for that host and get a "subrouter"
host is "www.example.com". Create a route for that host and get a "subrouter"
from it:
r := mux.NewRouter()
s := r.Host("www.domain.com").Subrouter()
s := r.Host("www.example.com").Subrouter()
Then register routes in the subrouter:
@ -116,7 +125,7 @@ Then register routes in the subrouter:
s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler)
The three URL paths we registered above will only be tested if the domain is
"www.domain.com", because the subrouter is tested first. This is not
"www.example.com", because the subrouter is tested first. This is not
only convenient, but also optimizes request matching. You can create
subrouters combining any attribute matchers accepted by a route.
@ -136,6 +145,31 @@ the inner routes use it as base for their paths:
// "/products/{key}/details"
s.HandleFunc("/{key}/details", ProductDetailsHandler)
Note that the path provided to PathPrefix() represents a "wildcard": calling
PathPrefix("/static/").Handler(...) means that the handler will be passed any
request that matches "/static/*". This makes it easy to serve static files with mux:
func main() {
var dir string
flag.StringVar(&dir, "dir", ".", "the directory to serve files from. Defaults to the current dir")
flag.Parse()
r := mux.NewRouter()
// This will serve files under http://localhost:8000/static/<filename>
r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(dir))))
srv := &http.Server{
Handler: r,
Addr: "127.0.0.1:8000",
// Good practice: enforce timeouts for servers you create!
WriteTimeout: 15 * time.Second,
ReadTimeout: 15 * time.Second,
}
log.Fatal(srv.ListenAndServe())
}
Now let's see how to build registered URLs.
Routes can be named. All routes that define a name can have their URLs built,
@ -154,24 +188,33 @@ key/value pairs for the route variables. For the previous route, we would do:
"/articles/technology/42"
This also works for host variables:
This also works for host and query value variables:
r := mux.NewRouter()
r.Host("{subdomain}.domain.com").
Path("/articles/{category}/{id:[0-9]+}").
Queries("filter", "{filter}").
HandlerFunc(ArticleHandler).
Name("article")
// url.String() will be "http://news.domain.com/articles/technology/42"
// url.String() will be "http://news.domain.com/articles/technology/42?filter=gorilla"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42")
"category", "technology",
"id", "42",
"filter", "gorilla")
All variables defined in the route are required, and their values must
conform to the corresponding patterns. These requirements guarantee that a
generated URL will always match a registered route -- the only exception is
for explicitly defined "build-only" routes which never match.
Regex support also exists for matching Headers within a route. For example, we could do:
r.HeadersRegexp("Content-Type", "application/(text|json)")
...and the route will match both requests with a Content-Type of `application/json` as well as
`application/text`
There's also a way to build only the URL host or path for a route:
use the methods URLHost() or URLPath() instead. For the previous route,
we would do:
@ -193,7 +236,7 @@ as well:
// "http://news.domain.com/articles/technology/42"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42")
"category", "technology",
"id", "42")
*/
package mux

282
vendor/github.com/gorilla/mux/mux.go generated vendored
View File

@ -5,11 +5,16 @@
package mux
import (
"errors"
"fmt"
"net/http"
"path"
"regexp"
)
"github.com/gorilla/context"
var (
ErrMethodMismatch = errors.New("method is not allowed")
ErrNotFound = errors.New("no matching route was found")
)
// NewRouter returns a new router instance.
@ -38,6 +43,10 @@ func NewRouter() *Router {
type Router struct {
// Configurable Handler to be used when no route matches.
NotFoundHandler http.Handler
// Configurable Handler to be used when the request method does not match the route.
MethodNotAllowedHandler http.Handler
// Parent route, if this is a subrouter.
parent parentRoute
// Routes to be matched, in order.
@ -46,17 +55,51 @@ type Router struct {
namedRoutes map[string]*Route
// See Router.StrictSlash(). This defines the flag for new routes.
strictSlash bool
// If true, do not clear the request context after handling the request
// See Router.SkipClean(). This defines the flag for new routes.
skipClean bool
// If true, do not clear the request context after handling the request.
// This has no effect when go1.7+ is used, since the context is stored
// on the request itself.
KeepContext bool
// see Router.UseEncodedPath(). This defines a flag for all routes.
useEncodedPath bool
}
// Match matches registered routes against the request.
// Match attempts to match the given request against the router's registered routes.
//
// If the request matches a route of this router or one of its subrouters the Route,
// Handler, and Vars fields of the the match argument are filled and this function
// returns true.
//
// If the request does not match any of this router's or its subrouters' routes
// then this function returns false. If available, a reason for the match failure
// will be filled in the match argument's MatchErr field. If the match failure type
// (eg: not found) has a registered handler, the handler is assigned to the Handler
// field of the match argument.
func (r *Router) Match(req *http.Request, match *RouteMatch) bool {
for _, route := range r.routes {
if route.Match(req, match) {
return true
}
}
if match.MatchErr == ErrMethodMismatch {
if r.MethodNotAllowedHandler != nil {
match.Handler = r.MethodNotAllowedHandler
return true
} else {
return false
}
}
// Closest match for a router (includes sub-routers)
if r.NotFoundHandler != nil {
match.Handler = r.NotFoundHandler
match.MatchErr = ErrNotFound
return true
}
match.MatchErr = ErrNotFound
return false
}
@ -65,35 +108,44 @@ func (r *Router) Match(req *http.Request, match *RouteMatch) bool {
// When there is a match, the route variables can be retrieved calling
// mux.Vars(request).
func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
// Clean path to canonical form and redirect.
if p := cleanPath(req.URL.Path); p != req.URL.Path {
if !r.skipClean {
path := req.URL.Path
if r.useEncodedPath {
path = req.URL.EscapedPath()
}
// Clean path to canonical form and redirect.
if p := cleanPath(path); p != path {
// Added 3 lines (Philip Schlump) - It was droping the query string and #whatever from query.
// This matches with fix in go 1.2 r.c. 4 for same problem. Go Issue:
// http://code.google.com/p/go/issues/detail?id=5252
url := *req.URL
url.Path = p
p = url.String()
// Added 3 lines (Philip Schlump) - It was dropping the query string and #whatever from query.
// This matches with fix in go 1.2 r.c. 4 for same problem. Go Issue:
// http://code.google.com/p/go/issues/detail?id=5252
url := *req.URL
url.Path = p
p = url.String()
w.Header().Set("Location", p)
w.WriteHeader(http.StatusMovedPermanently)
return
w.Header().Set("Location", p)
w.WriteHeader(http.StatusMovedPermanently)
return
}
}
var match RouteMatch
var handler http.Handler
if r.Match(req, &match) {
handler = match.Handler
setVars(req, match.Vars)
setCurrentRoute(req, match.Route)
req = setVars(req, match.Vars)
req = setCurrentRoute(req, match.Route)
}
if handler == nil && match.MatchErr == ErrMethodMismatch {
handler = methodNotAllowedHandler()
}
if handler == nil {
handler = r.NotFoundHandler
if handler == nil {
handler = http.NotFoundHandler()
}
handler = http.NotFoundHandler()
}
if !r.KeepContext {
defer context.Clear(req)
defer contextClear(req)
}
handler.ServeHTTP(w, req)
}
@ -112,13 +164,18 @@ func (r *Router) GetRoute(name string) *Route {
// StrictSlash defines the trailing slash behavior for new routes. The initial
// value is false.
//
// When true, if the route path is "/path/", accessing "/path" will redirect
// When true, if the route path is "/path/", accessing "/path" will perform a redirect
// to the former and vice versa. In other words, your application will always
// see the path as specified in the route.
//
// When false, if the route path is "/path", accessing "/path/" will not match
// this route and vice versa.
//
// The re-direct is a HTTP 301 (Moved Permanently). Note that when this is set for
// routes with a non-idempotent method (e.g. POST, PUT), the subsequent re-directed
// request will be made as a GET by most clients. Use middleware or client settings
// to modify this behaviour as needed.
//
// Special case: when a route sets a path prefix using the PathPrefix() method,
// strict slash is ignored for that route because the redirect behavior can't
// be determined from a prefix alone. However, any subrouters created from that
@ -128,10 +185,41 @@ func (r *Router) StrictSlash(value bool) *Router {
return r
}
// SkipClean defines the path cleaning behaviour for new routes. The initial
// value is false. Users should be careful about which routes are not cleaned
//
// When true, if the route path is "/path//to", it will remain with the double
// slash. This is helpful if you have a route like: /fetch/http://xkcd.com/534/
//
// When false, the path will be cleaned, so /fetch/http://xkcd.com/534/ will
// become /fetch/http/xkcd.com/534
func (r *Router) SkipClean(value bool) *Router {
r.skipClean = value
return r
}
// UseEncodedPath tells the router to match the encoded original path
// to the routes.
// For eg. "/path/foo%2Fbar/to" will match the path "/path/{var}/to".
//
// If not called, the router will match the unencoded path to the routes.
// For eg. "/path/foo%2Fbar/to" will match the path "/path/foo/bar/to"
func (r *Router) UseEncodedPath() *Router {
r.useEncodedPath = true
return r
}
// ----------------------------------------------------------------------------
// parentRoute
// ----------------------------------------------------------------------------
func (r *Router) getBuildScheme() string {
if r.parent != nil {
return r.parent.getBuildScheme()
}
return ""
}
// getNamedRoutes returns the map where named routes are registered.
func (r *Router) getNamedRoutes() map[string]*Route {
if r.namedRoutes == nil {
@ -165,7 +253,7 @@ func (r *Router) buildVars(m map[string]string) map[string]string {
// NewRoute registers an empty route.
func (r *Router) NewRoute() *Route {
route := &Route{parent: r, strictSlash: r.strictSlash}
route := &Route{parent: r, strictSlash: r.strictSlash, skipClean: r.skipClean, useEncodedPath: r.useEncodedPath}
r.routes = append(r.routes, route)
return route
}
@ -231,12 +319,59 @@ func (r *Router) Schemes(schemes ...string) *Route {
return r.NewRoute().Schemes(schemes...)
}
// BuildVars registers a new route with a custom function for modifying
// BuildVarsFunc registers a new route with a custom function for modifying
// route variables before building a URL.
func (r *Router) BuildVarsFunc(f BuildVarsFunc) *Route {
return r.NewRoute().BuildVarsFunc(f)
}
// Walk walks the router and all its sub-routers, calling walkFn for each route
// in the tree. The routes are walked in the order they were added. Sub-routers
// are explored depth-first.
func (r *Router) Walk(walkFn WalkFunc) error {
return r.walk(walkFn, []*Route{})
}
// SkipRouter is used as a return value from WalkFuncs to indicate that the
// router that walk is about to descend down to should be skipped.
var SkipRouter = errors.New("skip this router")
// WalkFunc is the type of the function called for each route visited by Walk.
// At every invocation, it is given the current route, and the current router,
// and a list of ancestor routes that lead to the current route.
type WalkFunc func(route *Route, router *Router, ancestors []*Route) error
func (r *Router) walk(walkFn WalkFunc, ancestors []*Route) error {
for _, t := range r.routes {
err := walkFn(t, r, ancestors)
if err == SkipRouter {
continue
}
if err != nil {
return err
}
for _, sr := range t.matchers {
if h, ok := sr.(*Router); ok {
ancestors = append(ancestors, t)
err := h.walk(walkFn, ancestors)
if err != nil {
return err
}
ancestors = ancestors[:len(ancestors)-1]
}
}
if h, ok := t.handler.(*Router); ok {
ancestors = append(ancestors, t)
err := h.walk(walkFn, ancestors)
if err != nil {
return err
}
ancestors = ancestors[:len(ancestors)-1]
}
}
return nil
}
// ----------------------------------------------------------------------------
// Context
// ----------------------------------------------------------------------------
@ -246,6 +381,11 @@ type RouteMatch struct {
Route *Route
Handler http.Handler
Vars map[string]string
// MatchErr is set to appropriate matching error
// It is set to ErrMethodMismatch if there is a mismatch in
// the request method and route method
MatchErr error
}
type contextKey int
@ -257,26 +397,30 @@ const (
// Vars returns the route variables for the current request, if any.
func Vars(r *http.Request) map[string]string {
if rv := context.Get(r, varsKey); rv != nil {
if rv := contextGet(r, varsKey); rv != nil {
return rv.(map[string]string)
}
return nil
}
// CurrentRoute returns the matched route for the current request, if any.
// This only works when called inside the handler of the matched route
// because the matched route is stored in the request context which is cleared
// after the handler returns, unless the KeepContext option is set on the
// Router.
func CurrentRoute(r *http.Request) *Route {
if rv := context.Get(r, routeKey); rv != nil {
if rv := contextGet(r, routeKey); rv != nil {
return rv.(*Route)
}
return nil
}
func setVars(r *http.Request, val interface{}) {
context.Set(r, varsKey, val)
func setVars(r *http.Request, val interface{}) *http.Request {
return contextSet(r, varsKey, val)
}
func setCurrentRoute(r *http.Request, val interface{}) {
context.Set(r, routeKey, val)
func setCurrentRoute(r *http.Request, val interface{}) *http.Request {
return contextSet(r, routeKey, val)
}
// ----------------------------------------------------------------------------
@ -298,6 +442,7 @@ func cleanPath(p string) string {
if p[len(p)-1] == '/' && np != "/" {
np += "/"
}
return np
}
@ -313,13 +458,24 @@ func uniqueVars(s1, s2 []string) error {
return nil
}
// mapFromPairs converts variadic string parameters to a string map.
func mapFromPairs(pairs ...string) (map[string]string, error) {
// checkPairs returns the count of strings passed in, and an error if
// the count is not an even number.
func checkPairs(pairs ...string) (int, error) {
length := len(pairs)
if length%2 != 0 {
return nil, fmt.Errorf(
return length, fmt.Errorf(
"mux: number of parameters must be multiple of 2, got %v", pairs)
}
return length, nil
}
// mapFromPairsToString converts variadic string parameters to a
// string to string map.
func mapFromPairsToString(pairs ...string) (map[string]string, error) {
length, err := checkPairs(pairs...)
if err != nil {
return nil, err
}
m := make(map[string]string, length/2)
for i := 0; i < length; i += 2 {
m[pairs[i]] = pairs[i+1]
@ -327,6 +483,24 @@ func mapFromPairs(pairs ...string) (map[string]string, error) {
return m, nil
}
// mapFromPairsToRegex converts variadic string parameters to a
// string to regex map.
func mapFromPairsToRegex(pairs ...string) (map[string]*regexp.Regexp, error) {
length, err := checkPairs(pairs...)
if err != nil {
return nil, err
}
m := make(map[string]*regexp.Regexp, length/2)
for i := 0; i < length; i += 2 {
regex, err := regexp.Compile(pairs[i+1])
if err != nil {
return nil, err
}
m[pairs[i]] = regex
}
return m, nil
}
// matchInArray returns true if the given string value is in the array.
func matchInArray(arr []string, value string) bool {
for _, v := range arr {
@ -337,9 +511,8 @@ func matchInArray(arr []string, value string) bool {
return false
}
// matchMap returns true if the given key/value pairs exist in a given map.
func matchMap(toCheck map[string]string, toMatch map[string][]string,
canonicalKey bool) bool {
// matchMapWithString returns true if the given key/value pairs exist in a given map.
func matchMapWithString(toCheck map[string]string, toMatch map[string][]string, canonicalKey bool) bool {
for k, v := range toCheck {
// Check if key exists.
if canonicalKey {
@ -364,3 +537,40 @@ func matchMap(toCheck map[string]string, toMatch map[string][]string,
}
return true
}
// matchMapWithRegex returns true if the given key/value pairs exist in a given map compiled against
// the given regex
func matchMapWithRegex(toCheck map[string]*regexp.Regexp, toMatch map[string][]string, canonicalKey bool) bool {
for k, v := range toCheck {
// Check if key exists.
if canonicalKey {
k = http.CanonicalHeaderKey(k)
}
if values := toMatch[k]; values == nil {
return false
} else if v != nil {
// If value was defined as an empty string we only check that the
// key exists. Otherwise we also check for equality.
valueExists := false
for _, value := range values {
if v.MatchString(value) {
valueExists = true
break
}
}
if !valueExists {
return false
}
}
}
return true
}
// methodNotAllowed replies to the request with an HTTP status code 405.
func methodNotAllowed(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusMethodNotAllowed)
}
// methodNotAllowedHandler returns a simple request handler
// that replies to each request with a status code 405.
func methodNotAllowedHandler() http.Handler { return http.HandlerFunc(methodNotAllowed) }

126
vendor/github.com/gorilla/mux/regexp.go generated vendored
View File

@ -10,6 +10,7 @@ import (
"net/http"
"net/url"
"regexp"
"strconv"
"strings"
)
@ -23,7 +24,7 @@ import (
// Previously we accepted only Python-like identifiers for variable
// names ([a-zA-Z_][a-zA-Z0-9_]*), but currently the only restriction is that
// name and pattern can't be empty, and names can't contain a colon.
func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash bool) (*routeRegexp, error) {
func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash, useEncodedPath bool) (*routeRegexp, error) {
// Check if it is well-formed.
idxs, errBraces := braceIndices(tpl)
if errBraces != nil {
@ -34,8 +35,7 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash
// Now let's parse it.
defaultPattern := "[^/]+"
if matchQuery {
defaultPattern = "[^?&]+"
matchPrefix = true
defaultPattern = ".*"
} else if matchHost {
defaultPattern = "[^.]+"
matchPrefix = false
@ -53,9 +53,7 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash
varsN := make([]string, len(idxs)/2)
varsR := make([]*regexp.Regexp, len(idxs)/2)
pattern := bytes.NewBufferString("")
if !matchQuery {
pattern.WriteByte('^')
}
pattern.WriteByte('^')
reverse := bytes.NewBufferString("")
var end int
var err error
@ -75,9 +73,11 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash
tpl[idxs[i]:end])
}
// Build the regexp pattern.
fmt.Fprintf(pattern, "%s(%s)", regexp.QuoteMeta(raw), patt)
fmt.Fprintf(pattern, "%s(?P<%s>%s)", regexp.QuoteMeta(raw), varGroupName(i/2), patt)
// Build the reverse template.
fmt.Fprintf(reverse, "%s%%s", raw)
// Append variable name and compiled pattern.
varsN[i/2] = name
varsR[i/2], err = regexp.Compile(fmt.Sprintf("^%s$", patt))
@ -91,6 +91,12 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash
if strictSlash {
pattern.WriteString("[/]?")
}
if matchQuery {
// Add the default pattern if the query value is empty
if queryVal := strings.SplitN(template, "=", 2)[1]; queryVal == "" {
pattern.WriteString(defaultPattern)
}
}
if !matchPrefix {
pattern.WriteByte('$')
}
@ -103,16 +109,24 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash
if errCompile != nil {
return nil, errCompile
}
// Check for capturing groups which used to work in older versions
if reg.NumSubexp() != len(idxs)/2 {
panic(fmt.Sprintf("route %s contains capture groups in its regexp. ", template) +
"Only non-capturing groups are accepted: e.g. (?:pattern) instead of (pattern)")
}
// Done!
return &routeRegexp{
template: template,
matchHost: matchHost,
matchQuery: matchQuery,
strictSlash: strictSlash,
regexp: reg,
reverse: reverse.String(),
varsN: varsN,
varsR: varsR,
template: template,
matchHost: matchHost,
matchQuery: matchQuery,
strictSlash: strictSlash,
useEncodedPath: useEncodedPath,
regexp: reg,
reverse: reverse.String(),
varsN: varsN,
varsR: varsR,
}, nil
}
@ -127,6 +141,9 @@ type routeRegexp struct {
matchQuery bool
// The strictSlash value defined on the route, but disabled if PathPrefix was used.
strictSlash bool
// Determines whether to use encoded req.URL.EnscapedPath() or unencoded
// req.URL.Path for path matching
useEncodedPath bool
// Expanded regexp.
regexp *regexp.Regexp
// Reverse template.
@ -141,11 +158,15 @@ type routeRegexp struct {
func (r *routeRegexp) Match(req *http.Request, match *RouteMatch) bool {
if !r.matchHost {
if r.matchQuery {
return r.regexp.MatchString(req.URL.RawQuery)
} else {
return r.regexp.MatchString(req.URL.Path)
return r.matchQueryString(req)
}
path := req.URL.Path
if r.useEncodedPath {
path = req.URL.EscapedPath()
}
return r.regexp.MatchString(path)
}
return r.regexp.MatchString(getHost(req))
}
@ -157,6 +178,9 @@ func (r *routeRegexp) url(values map[string]string) (string, error) {
if !ok {
return "", fmt.Errorf("mux: missing route variable %q", v)
}
if r.matchQuery {
value = url.QueryEscape(value)
}
urlValues[k] = value
}
rv := fmt.Sprintf(r.reverse, urlValues...)
@ -175,11 +199,31 @@ func (r *routeRegexp) url(values map[string]string) (string, error) {
return rv, nil
}
// getURLQuery returns a single query parameter from a request URL.
// For a URL with foo=bar&baz=ding, we return only the relevant key
// value pair for the routeRegexp.
func (r *routeRegexp) getURLQuery(req *http.Request) string {
if !r.matchQuery {
return ""
}
templateKey := strings.SplitN(r.template, "=", 2)[0]
for key, vals := range req.URL.Query() {
if key == templateKey && len(vals) > 0 {
return key + "=" + vals[0]
}
}
return ""
}
func (r *routeRegexp) matchQueryString(req *http.Request) bool {
return r.regexp.MatchString(r.getURLQuery(req))
}
// braceIndices returns the first level curly brace indices from a string.
// It returns an error in case of unbalanced braces.
func braceIndices(s string) ([]int, error) {
var level, idx int
idxs := make([]int, 0)
var idxs []int
for i := 0; i < len(s); i++ {
switch s[i] {
case '{':
@ -200,6 +244,11 @@ func braceIndices(s string) ([]int, error) {
return idxs, nil
}
// varGroupName builds a capturing group name for the indexed variable.
func varGroupName(idx int) string {
return "v" + strconv.Itoa(idx)
}
// ----------------------------------------------------------------------------
// routeRegexpGroup
// ----------------------------------------------------------------------------
@ -215,23 +264,24 @@ type routeRegexpGroup struct {
func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route) {
// Store host variables.
if v.host != nil {
hostVars := v.host.regexp.FindStringSubmatch(getHost(req))
if hostVars != nil {
for k, v := range v.host.varsN {
m.Vars[v] = hostVars[k+1]
}
host := getHost(req)
matches := v.host.regexp.FindStringSubmatchIndex(host)
if len(matches) > 0 {
extractVars(host, matches, v.host.varsN, m.Vars)
}
}
path := req.URL.Path
if r.useEncodedPath {
path = req.URL.EscapedPath()
}
// Store path variables.
if v.path != nil {
pathVars := v.path.regexp.FindStringSubmatch(req.URL.Path)
if pathVars != nil {
for k, v := range v.path.varsN {
m.Vars[v] = pathVars[k+1]
}
matches := v.path.regexp.FindStringSubmatchIndex(path)
if len(matches) > 0 {
extractVars(path, matches, v.path.varsN, m.Vars)
// Check if we should redirect.
if v.path.strictSlash {
p1 := strings.HasSuffix(req.URL.Path, "/")
p1 := strings.HasSuffix(path, "/")
p2 := strings.HasSuffix(v.path.template, "/")
if p1 != p2 {
u, _ := url.Parse(req.URL.String())
@ -246,13 +296,11 @@ func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route)
}
}
// Store query string variables.
rawQuery := req.URL.RawQuery
for _, q := range v.queries {
queryVars := q.regexp.FindStringSubmatch(rawQuery)
if queryVars != nil {
for k, v := range q.varsN {
m.Vars[v] = queryVars[k+1]
}
queryURL := q.getURLQuery(req)
matches := q.regexp.FindStringSubmatchIndex(queryURL)
if len(matches) > 0 {
extractVars(queryURL, matches, q.varsN, m.Vars)
}
}
}
@ -270,3 +318,9 @@ func getHost(r *http.Request) string {
return host
}
func extractVars(input string, matches []int, names []string, output map[string]string) {
for i, name := range names {
output[name] = input[matches[2*i+2]:matches[2*i+3]]
}
}

227
vendor/github.com/gorilla/mux/route.go generated vendored
View File

@ -9,6 +9,7 @@ import (
"fmt"
"net/http"
"net/url"
"regexp"
"strings"
)
@ -25,6 +26,13 @@ type Route struct {
// If true, when the path pattern is "/path/", accessing "/path" will
// redirect to the former and vice versa.
strictSlash bool
// If true, when the path pattern is "/path//to", accessing "/path//to"
// will not redirect
skipClean bool
// If true, "/path/foo%2Fbar/to" will match the path "/path/{var}/to"
useEncodedPath bool
// The scheme used when building URLs.
buildScheme string
// If true, this route never matches: it is only used to build URLs.
buildOnly bool
// The name used to build URLs.
@ -35,17 +43,42 @@ type Route struct {
buildVarsFunc BuildVarsFunc
}
func (r *Route) SkipClean() bool {
return r.skipClean
}
// Match matches the route against the request.
func (r *Route) Match(req *http.Request, match *RouteMatch) bool {
if r.buildOnly || r.err != nil {
return false
}
var matchErr error
// Match everything.
for _, m := range r.matchers {
if matched := m.Match(req, match); !matched {
if _, ok := m.(methodMatcher); ok {
matchErr = ErrMethodMismatch
continue
}
matchErr = nil
return false
}
}
if matchErr != nil {
match.MatchErr = matchErr
return false
}
if match.MatchErr == ErrMethodMismatch {
// We found a route which matches request method, clear MatchErr
match.MatchErr = nil
// Then override the mis-matched handler
match.Handler = r.handler
}
// Yay, we have a match. Let's collect some info about it.
if match.Route == nil {
match.Route = r
@ -56,6 +89,7 @@ func (r *Route) Match(req *http.Request, match *RouteMatch) bool {
if match.Vars == nil {
match.Vars = make(map[string]string)
}
// Set variables.
if r.regexp != nil {
r.regexp.setMatch(req, match, r)
@ -143,14 +177,14 @@ func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery
}
r.regexp = r.getRegexpGroup()
if !matchHost && !matchQuery {
if len(tpl) == 0 || tpl[0] != '/' {
if len(tpl) > 0 && tpl[0] != '/' {
return fmt.Errorf("mux: path must start with a slash, got %q", tpl)
}
if r.regexp.path != nil {
tpl = strings.TrimRight(r.regexp.path.template, "/") + tpl
}
}
rr, err := newRouteRegexp(tpl, matchHost, matchPrefix, matchQuery, r.strictSlash)
rr, err := newRouteRegexp(tpl, matchHost, matchPrefix, matchQuery, r.strictSlash, r.useEncodedPath)
if err != nil {
return err
}
@ -188,7 +222,7 @@ func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery
type headerMatcher map[string]string
func (m headerMatcher) Match(r *http.Request, match *RouteMatch) bool {
return matchMap(m, r.Header, true)
return matchMapWithString(m, r.Header, true)
}
// Headers adds a matcher for request header values.
@ -199,22 +233,47 @@ func (m headerMatcher) Match(r *http.Request, match *RouteMatch) bool {
// "X-Requested-With", "XMLHttpRequest")
//
// The above route will only match if both request header values match.
//
// It the value is an empty string, it will match any value if the key is set.
// If the value is an empty string, it will match any value if the key is set.
func (r *Route) Headers(pairs ...string) *Route {
if r.err == nil {
var headers map[string]string
headers, r.err = mapFromPairs(pairs...)
headers, r.err = mapFromPairsToString(pairs...)
return r.addMatcher(headerMatcher(headers))
}
return r
}
// headerRegexMatcher matches the request against the route given a regex for the header
type headerRegexMatcher map[string]*regexp.Regexp
func (m headerRegexMatcher) Match(r *http.Request, match *RouteMatch) bool {
return matchMapWithRegex(m, r.Header, true)
}
// HeadersRegexp accepts a sequence of key/value pairs, where the value has regex
// support. For example:
//
// r := mux.NewRouter()
// r.HeadersRegexp("Content-Type", "application/(text|json)",
// "X-Requested-With", "XMLHttpRequest")
//
// The above route will only match if both the request header matches both regular expressions.
// If the value is an empty string, it will match any value if the key is set.
// Use the start and end of string anchors (^ and $) to match an exact value.
func (r *Route) HeadersRegexp(pairs ...string) *Route {
if r.err == nil {
var headers map[string]*regexp.Regexp
headers, r.err = mapFromPairsToRegex(pairs...)
return r.addMatcher(headerRegexMatcher(headers))
}
return r
}
// Host -----------------------------------------------------------------------
// Host adds a matcher for the URL host.
// It accepts a template with zero or more URL variables enclosed by {}.
// Variables can define an optional regexp pattern to me matched:
// Variables can define an optional regexp pattern to be matched:
//
// - {name} matches anything until the next dot.
//
@ -223,7 +282,7 @@ func (r *Route) Headers(pairs ...string) *Route {
// For example:
//
// r := mux.NewRouter()
// r.Host("www.domain.com")
// r.Host("www.example.com")
// r.Host("{subdomain}.domain.com")
// r.Host("{subdomain:[a-z]+}.domain.com")
//
@ -239,6 +298,7 @@ func (r *Route) Host(tpl string) *Route {
// MatcherFunc is the function signature used by custom matchers.
type MatcherFunc func(*http.Request, *RouteMatch) bool
// Match returns the match for a given request.
func (m MatcherFunc) Match(r *http.Request, match *RouteMatch) bool {
return m(r, match)
}
@ -272,7 +332,7 @@ func (r *Route) Methods(methods ...string) *Route {
// Path adds a matcher for the URL path.
// It accepts a template with zero or more URL variables enclosed by {}. The
// template must start with a "/".
// Variables can define an optional regexp pattern to me matched:
// Variables can define an optional regexp pattern to be matched:
//
// - {name} matches anything until the next slash.
//
@ -323,7 +383,7 @@ func (r *Route) PathPrefix(tpl string) *Route {
//
// It the value is an empty string, it will match any value if the key is set.
//
// Variables can define an optional regexp pattern to me matched:
// Variables can define an optional regexp pattern to be matched:
//
// - {name} matches anything until the next slash.
//
@ -336,7 +396,7 @@ func (r *Route) Queries(pairs ...string) *Route {
return nil
}
for i := 0; i < length; i += 2 {
if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], false, true, true); r.err != nil {
if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], false, false, true); r.err != nil {
return r
}
}
@ -359,6 +419,9 @@ func (r *Route) Schemes(schemes ...string) *Route {
for k, v := range schemes {
schemes[k] = strings.ToLower(v)
}
if r.buildScheme == "" && len(schemes) > 0 {
r.buildScheme = schemes[0]
}
return r.addMatcher(schemeMatcher(schemes))
}
@ -382,7 +445,7 @@ func (r *Route) BuildVarsFunc(f BuildVarsFunc) *Route {
// It will test the inner routes only if the parent route matched. For example:
//
// r := mux.NewRouter()
// s := r.Host("www.domain.com").Subrouter()
// s := r.Host("www.example.com").Subrouter()
// s.HandleFunc("/products/", ProductsHandler)
// s.HandleFunc("/products/{key}", ProductHandler)
// s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler)
@ -442,22 +505,33 @@ func (r *Route) URL(pairs ...string) (*url.URL, error) {
return nil, err
}
var scheme, host, path string
queries := make([]string, 0, len(r.regexp.queries))
if r.regexp.host != nil {
// Set a default scheme.
scheme = "http"
if host, err = r.regexp.host.url(values); err != nil {
return nil, err
}
scheme = "http"
if s := r.getBuildScheme(); s != "" {
scheme = s
}
}
if r.regexp.path != nil {
if path, err = r.regexp.path.url(values); err != nil {
return nil, err
}
}
for _, q := range r.regexp.queries {
var query string
if query, err = q.url(values); err != nil {
return nil, err
}
queries = append(queries, query)
}
return &url.URL{
Scheme: scheme,
Host: host,
Path: path,
Scheme: scheme,
Host: host,
Path: path,
RawQuery: strings.Join(queries, "&"),
}, nil
}
@ -479,10 +553,14 @@ func (r *Route) URLHost(pairs ...string) (*url.URL, error) {
if err != nil {
return nil, err
}
return &url.URL{
u := &url.URL{
Scheme: "http",
Host: host,
}, nil
}
if s := r.getBuildScheme(); s != "" {
u.Scheme = s
}
return u, nil
}
// URLPath builds the path part of the URL for a route. See Route.URL().
@ -508,10 +586,108 @@ func (r *Route) URLPath(pairs ...string) (*url.URL, error) {
}, nil
}
// GetPathTemplate returns the template used to build the
// route match.
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An error will be returned if the route does not define a path.
func (r *Route) GetPathTemplate() (string, error) {
if r.err != nil {
return "", r.err
}
if r.regexp == nil || r.regexp.path == nil {
return "", errors.New("mux: route doesn't have a path")
}
return r.regexp.path.template, nil
}
// GetPathRegexp returns the expanded regular expression used to match route path.
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An error will be returned if the route does not define a path.
func (r *Route) GetPathRegexp() (string, error) {
if r.err != nil {
return "", r.err
}
if r.regexp == nil || r.regexp.path == nil {
return "", errors.New("mux: route does not have a path")
}
return r.regexp.path.regexp.String(), nil
}
// GetQueriesRegexp returns the expanded regular expressions used to match the
// route queries.
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An empty list will be returned if the route does not have queries.
func (r *Route) GetQueriesRegexp() ([]string, error) {
if r.err != nil {
return nil, r.err
}
if r.regexp == nil || r.regexp.queries == nil {
return nil, errors.New("mux: route doesn't have queries")
}
var queries []string
for _, query := range r.regexp.queries {
queries = append(queries, query.regexp.String())
}
return queries, nil
}
// GetQueriesTemplates returns the templates used to build the
// query matching.
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An empty list will be returned if the route does not define queries.
func (r *Route) GetQueriesTemplates() ([]string, error) {
if r.err != nil {
return nil, r.err
}
if r.regexp == nil || r.regexp.queries == nil {
return nil, errors.New("mux: route doesn't have queries")
}
var queries []string
for _, query := range r.regexp.queries {
queries = append(queries, query.template)
}
return queries, nil
}
// GetMethods returns the methods the route matches against
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An empty list will be returned if route does not have methods.
func (r *Route) GetMethods() ([]string, error) {
if r.err != nil {
return nil, r.err
}
for _, m := range r.matchers {
if methods, ok := m.(methodMatcher); ok {
return []string(methods), nil
}
}
return nil, nil
}
// GetHostTemplate returns the template used to build the
// route match.
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An error will be returned if the route does not define a host.
func (r *Route) GetHostTemplate() (string, error) {
if r.err != nil {
return "", r.err
}
if r.regexp == nil || r.regexp.host == nil {
return "", errors.New("mux: route doesn't have a host")
}
return r.regexp.host.template, nil
}
// prepareVars converts the route variable pairs into a map. If the route has a
// BuildVarsFunc, it is invoked.
func (r *Route) prepareVars(pairs ...string) (map[string]string, error) {
m, err := mapFromPairs(pairs...)
m, err := mapFromPairsToString(pairs...)
if err != nil {
return nil, err
}
@ -534,11 +710,22 @@ func (r *Route) buildVars(m map[string]string) map[string]string {
// parentRoute allows routes to know about parent host and path definitions.
type parentRoute interface {
getBuildScheme() string
getNamedRoutes() map[string]*Route
getRegexpGroup() *routeRegexpGroup
buildVars(map[string]string) map[string]string
}
func (r *Route) getBuildScheme() string {
if r.buildScheme != "" {
return r.buildScheme
}
if r.parent != nil {
return r.parent.getBuildScheme()
}
return ""
}
// getNamedRoutes returns the map where named routes are registered.
func (r *Route) getNamedRoutes() map[string]*Route {
if r.parent == nil {

18
vendor/github.com/gorilla/mux/test_helpers.go generated vendored Normal file
View File

@ -0,0 +1,18 @@
// Copyright 2012 The Gorilla Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package mux
import "net/http"
// SetURLVars sets the URL variables for the given request, to be accessed via
// mux.Vars for testing route behaviour.
//
// This API should only be used for testing purposes; it provides a way to
// inject variables into the request context. Alternatively, URL variables
// can be set by making a route that captures the required variables,
// starting a server and sending the request to that server.
func SetURLVars(r *http.Request, val map[string]string) *http.Request {
return setVars(r, val)
}

1
vendor/github.com/spf13/viper/.gitignore generated vendored
View File

@ -21,3 +21,4 @@ _testmain.go
*.exe
*.test
*.bench

6
vendor/github.com/spf13/viper/.travis.yml generated vendored
View File

@ -2,9 +2,8 @@ go_import_path: github.com/spf13/viper
language: go
go:
- 1.5.4
- 1.6.3
- 1.7
- 1.7.5
- 1.8
- tip
os:
@ -18,6 +17,7 @@ matrix:
script:
- go install ./...
- diff -u <(echo -n) <(gofmt -d .)
- go test -v ./...
after_success:

85
vendor/github.com/spf13/viper/README.md generated vendored
View File

@ -6,18 +6,19 @@ Many Go projects are built using Viper including:
* [Hugo](http://gohugo.io)
* [EMC RexRay](http://rexray.readthedocs.org/en/stable/)
* [Imgur's Incus](https://github.com/Imgur/incus)
* [Imgur’s Incus](https://github.com/Imgur/incus)
* [Nanobox](https://github.com/nanobox-io/nanobox)/[Nanopack](https://github.com/nanopack)
* [Docker Notary](https://github.com/docker/Notary)
* [BloomApi](https://www.bloomapi.com/)
* [doctl(https://github.com/digitalocean/doctl)
* [doctl](https://github.com/digitalocean/doctl)
* [Clairctl](https://github.com/jgsqware/clairctl)
[![Build Status](https://travis-ci.org/spf13/viper.svg)](https://travis-ci.org/spf13/viper) [![Join the chat at https://gitter.im/spf13/viper](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/spf13/viper?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
[![Build Status](https://travis-ci.org/spf13/viper.svg)](https://travis-ci.org/spf13/viper) [![Join the chat at https://gitter.im/spf13/viper](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/spf13/viper?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![GoDoc](https://godoc.org/github.com/spf13/viper?status.svg)](https://godoc.org/github.com/spf13/viper)
## What is Viper?
Viper is a complete configuration solution for go applications including 12 factor apps. It is designed
Viper is a complete configuration solution for Go applications including 12-Factor apps. It is designed
to work within an application, and can handle all types of configuration needs
and formats. It supports:
@ -68,7 +69,7 @@ Viper configuration keys are case insensitive.
### Establishing Defaults
A good configuration system will support default values. A default value is not
required for a key, but it's useful in the event that a key hasn’t been set via
required for a key, but it’s useful in the event that a key hasn’t been set via
config file, environment variable, remote configuration or flag.
Examples:
@ -110,16 +111,16 @@ Gone are the days of needing to restart a server to have a config take effect,
viper powered applications can read an update to a config file while running and
not miss a beat.
Simply tell the viper instance to watchConfig.
Simply tell the viper instance to watchConfig.
Optionally you can provide a function for Viper to run each time a change occurs.
**Make sure you add all of the configPaths prior to calling `WatchConfig()`**
```go
viper.WatchConfig()
viper.OnConfigChange(func(e fsnotify.Event) {
fmt.Println("Config file changed:", e.Name)
})
viper.WatchConfig()
viper.OnConfigChange(func(e fsnotify.Event) {
fmt.Println("Config file changed:", e.Name)
})
```
### Reading Config from io.Reader
@ -236,7 +237,7 @@ Like `BindEnv`, the value is not set when the binding method is called, but when
it is accessed. This means you can bind as early as you want, even in an
`init()` function.
The `BindPFlag()` method provides this functionality.
For individual flags, the `BindPFlag()` method provides this functionality.
Example:
@ -245,6 +246,19 @@ serverCmd.Flags().Int("port", 1138, "Port to run Application server on")
viper.BindPFlag("port", serverCmd.Flags().Lookup("port"))
```
You can also bind an existing set of pflags (pflag.FlagSet):
Example:
```go
pflag.Int("flagname", 1234, "help message for flagname")
pflag.Parse()
viper.BindPFlags(pflag.CommandLine)
i := viper.GetInt("flagname") // retrieve values from viper instead of pflag
```
The use of [pflag](https://github.com/spf13/pflag/) in Viper does not preclude
the use of other packages that use the [flag](https://golang.org/pkg/flag/)
package from the standard library. The pflag package can handle the flags
@ -263,24 +277,32 @@ import (
)
func main() {
// using standard library "flag" package
flag.Int("flagname", 1234, "help message for flagname")
pflag.CommandLine.AddGoFlagSet(flag.CommandLine)
pflag.Parse()
...
viper.BindPFlags(pflag.CommandLine)
i := viper.GetInt("flagname") // retrieve value from viper
...
}
```
#### Flag interfaces
Viper provides two Go interfaces to bind other flag systems if you don't use `Pflags`.
Viper provides two Go interfaces to bind other flag systems if you don’t use `Pflags`.
`FlagValue` represents a single flag. This is a very simple example on how to implement this interface:
```go
type myFlag struct {}
func (f myFlag) IsChanged() { return false }
func (f myFlag) Name() { return "my-flag-name" }
func (f myFlag) ValueString() { return "my-flag-value" }
func (f myFlag) ValueType() { return "string" }
func (f myFlag) HasChanged() bool { return false }
func (f myFlag) Name() string { return "my-flag-name" }
func (f myFlag) ValueString() string { return "my-flag-value" }
func (f myFlag) ValueType() string { return "string" }
```
Once your flag implements this interface, you can simply tell Viper to bind it:
@ -298,7 +320,7 @@ type myFlagSet struct {
func (f myFlagSet) VisitAll(fn func(FlagValue)) {
for _, flag := range flags {
fn(flag)
fn(flag)
}
}
```
@ -401,7 +423,7 @@ go func(){
## Getting Values From Viper
In Viper, there are a few ways to get a value depending on the value's type.
In Viper, there are a few ways to get a value depending on the value’s type.
The following functions and methods exist:
* `Get(key string) : interface{}`
@ -458,16 +480,17 @@ Viper can access a nested field by passing a `.` delimited path of keys:
GetString("datastore.metric.host") // (returns "127.0.0.1")
```
This obeys the precedence rules established above; the search for the root key
(in this example, `datastore`) will cascade through the remaining configuration
registries until found. The search for the sub-keys (`metric` and `host`),
however, will not.
This obeys the precedence rules established above; the search for the path
will cascade through the remaining configuration registries until found.
For example, if the `metric` key was not defined in the configuration loaded
from file, but was defined in the defaults, Viper would return the zero value.
For example, given this configuration file, both `datastore.metric.host` and
`datastore.metric.port` are already defined (and may be overridden). If in addition
`datastore.metric.protocol` was defined in the defaults, Viper would also find it.
On the other hand, if the primary key was not defined, Viper would go through
the remaining registries looking for it.
However, if `datastore.metric` was overridden (by a flag, an environment variable,
the `Set()` method, …) with an immediate value, then all sub-keys of
`datastore.metric` become undefined, they are “shadowed” by the higher-priority
configuration level.
Lastly, if there exists a key that matches the delimited key path, its value
will be returned instead. E.g.
@ -491,7 +514,7 @@ will be returned instead. E.g.
}
}
GetString("datastore.metric.host") //returns "0.0.0.0"
GetString("datastore.metric.host") // returns "0.0.0.0"
```
### Extract sub-tree
@ -530,7 +553,7 @@ func NewCache(cfg *Viper) *Cache {...}
```
which creates a cache based on config information formatted as `subv`.
Now it's easy to create these 2 caches separately as:
Now it’s easy to create these 2 caches separately as:
```go
cfg1 := viper.Sub("app.cache1")
@ -574,13 +597,13 @@ initialization needed to begin using Viper. Since most applications will want
to use a single central repository for their configuration, the viper package
provides this. It is similar to a singleton.
In all of the examples above, they demonstrate using viper in it's singleton
In all of the examples above, they demonstrate using viper in its singleton
style approach.
### Working with multiple vipers
You can also create many different vipers for use in your application. Each will
have it’s own unique set of configurations and values. Each can read from a
have its own unique set of configurations and values. Each can read from a
different config file, key value store, etc. All of the functions that viper
package supports are mirrored as methods on a viper.

118
vendor/github.com/spf13/viper/util.go generated vendored
View File

@ -29,23 +29,68 @@ import (
"gopkg.in/yaml.v2"
)
// Denotes failing to parse configuration file.
// ConfigParseError denotes failing to parse configuration file.
type ConfigParseError struct {
err error
}
// Returns the formatted configuration error.
// Error returns the formatted configuration error.
func (pe ConfigParseError) Error() string {
return fmt.Sprintf("While parsing config: %s", pe.err.Error())
}
// toCaseInsensitiveValue checks if the value is a map;
// if so, create a copy and lower-case the keys recursively.
func toCaseInsensitiveValue(value interface{}) interface{} {
switch v := value.(type) {
case map[interface{}]interface{}:
value = copyAndInsensitiviseMap(cast.ToStringMap(v))
case map[string]interface{}:
value = copyAndInsensitiviseMap(v)
}
return value
}
// copyAndInsensitiviseMap behaves like insensitiviseMap, but creates a copy of
// any map it makes case insensitive.
func copyAndInsensitiviseMap(m map[string]interface{}) map[string]interface{} {
nm := make(map[string]interface{})
for key, val := range m {
lkey := strings.ToLower(key)
switch v := val.(type) {
case map[interface{}]interface{}:
nm[lkey] = copyAndInsensitiviseMap(cast.ToStringMap(v))
case map[string]interface{}:
nm[lkey] = copyAndInsensitiviseMap(v)
default:
nm[lkey] = v
}
}
return nm
}
func insensitiviseMap(m map[string]interface{}) {
for key, val := range m {
switch val.(type) {
case map[interface{}]interface{}:
// nested map: cast and recursively insensitivise
val = cast.ToStringMap(val)
insensitiviseMap(val.(map[string]interface{}))
case map[string]interface{}:
// nested map: recursively insensitivise
insensitiviseMap(val.(map[string]interface{}))
}
lower := strings.ToLower(key)
if key != lower {
// remove old key (not lower-cased)
delete(m, key)
m[lower] = val
}
// update map
m[lower] = val
}
}
@ -68,10 +113,10 @@ func absPathify(inPath string) string {
p, err := filepath.Abs(inPath)
if err == nil {
return filepath.Clean(p)
} else {
jww.ERROR.Println("Couldn't discover absolute path")
jww.ERROR.Println(err)
}
jww.ERROR.Println("Couldn't discover absolute path")
jww.ERROR.Println(err)
return ""
}
@ -107,29 +152,6 @@ func userHomeDir() string {
return os.Getenv("HOME")
}
func findCWD() (string, error) {
serverFile, err := filepath.Abs(os.Args[0])
if err != nil {
return "", fmt.Errorf("Can't get absolute path for executable: %v", err)
}
path := filepath.Dir(serverFile)
realFile, err := filepath.EvalSymlinks(serverFile)
if err != nil {
if _, err = os.Stat(serverFile + ".exe"); err == nil {
realFile = filepath.Clean(serverFile + ".exe")
}
}
if err == nil && realFile != serverFile {
path = filepath.Dir(realFile)
}
return path, nil
}
func unmarshallConfigReader(in io.Reader, c map[string]interface{}, configType string) error {
buf := new(bytes.Buffer)
buf.ReadFrom(in)
@ -172,7 +194,12 @@ func unmarshallConfigReader(in io.Reader, c map[string]interface{}, configType s
}
for _, key := range p.Keys() {
value, _ := p.Get(key)
c[key] = value
// recursively build nested maps
path := strings.Split(key, ".")
lastKey := strings.ToLower(path[len(path)-1])
deepestMap := deepSearch(c, path[0:len(path)-1])
// set innermost value
deepestMap[lastKey] = value
}
}
@ -222,3 +249,34 @@ func parseSizeInBytes(sizeStr string) uint {
return safeMul(uint(size), multiplier)
}
// deepSearch scans deep maps, following the key indexes listed in the
// sequence "path".
// The last value is expected to be another map, and is returned.
//
// In case intermediate keys do not exist, or map to a non-map value,
// a new map is created and inserted, and the search continues from there:
// the initial map "m" may be modified!
func deepSearch(m map[string]interface{}, path []string) map[string]interface{} {
for _, k := range path {
m2, ok := m[k]
if !ok {
// intermediate key does not exist
// => create it and continue from there
m3 := make(map[string]interface{})
m[k] = m3
m = m3
continue
}
m3, ok := m2.(map[string]interface{})
if !ok {
// intermediate key is a value
// => replace with a new map
m3 = make(map[string]interface{})
m[k] = m3
}
// continue search from here
m = m3
}
return m
}

858
vendor/github.com/spf13/viper/viper.go generated vendored
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