cookies使用

1.基础cookies操作

目录结构

主目录basic

    —— main.go
    —— main_test.go

代码示例

main.go

package main

import "github.com/kataras/iris"

func newApp() *iris.Application {
    app := iris.New()
    app.Get("/cookies/{name}/{value}", func(ctx iris.Context) {
        name := ctx.Params().Get("name")
        value := ctx.Params().Get("value")
        ctx.SetCookieKV(name, value) // <-- 设置一个Cookie
        // 另外也可以用: ctx.SetCookie(&http.Cookie{...})
        // 如果要设置自定义存放路径:
        // ctx.SetCookieKV(name, value, iris.CookiePath("/custom/path/cookie/will/be/stored"))

        ctx.Request().Cookie(name)
        //如果您希望仅对当前请求路径可见:
        //(请注意,如果服务器发送空cookie的路径,所有浏览器都兼容,将会使用客户端自定义路径)
        // ctx.SetCookieKV(name, value, iris.CookieCleanPath /* or iris.CookiePath("") */)
        // 学习更多:
        //                              iris.CookieExpires(time.Duration)
        //                              iris.CookieHTTPOnly(false)
        ctx.Writef("cookie added: %s = %s", name, value)
    })
    app.Get("/cookies/{name}", func(ctx iris.Context) {
        name := ctx.Params().Get("name")
        value := ctx.GetCookie(name) // <-- 检索,获取Cookie
        //判断命名cookie不存在,再获取值
        // cookie, err := ctx.Request().Cookie(name)
        // if err != nil {
        //  handle error.
        // }
        ctx.WriteString(value)
    })
    app.Delete("/cookies/{name}", func(ctx iris.Context) {
        name := ctx.Params().Get("name")
        ctx.RemoveCookie(name) // <-- 删除Cookie
        //如果要设置自定义路径:
        // ctx.SetCookieKV(name, value, iris.CookiePath("/custom/path/cookie/will/be/stored"))
        ctx.Writef("cookie %s removed", name)
    })
    return app
}

func main() {
    app := newApp()
    // GET:    http://localhost:8080/cookies/my_name/my_value
    // GET:    http://localhost:8080/cookies/my_name
    // DELETE: http://localhost:8080/cookies/my_name
    app.Run(iris.Addr(":8080"))
}

main_test.go

package main

import (
    "fmt"
    "testing"

    "github.com/kataras/iris/httptest"
)

func TestCookiesBasic(t *testing.T) {
    app := newApp()
    e := httptest.New(t, app, httptest.URL("http://example.com"))

    cookieName, cookieValue := "my_cookie_name", "my_cookie_value"

    // Test Set A Cookie.
    t1 := e.GET(fmt.Sprintf("/cookies/%s/%s", cookieName, cookieValue)).Expect().Status(httptest.StatusOK)
    t1.Cookie(cookieName).Value().Equal(cookieValue) // validate cookie's existence, it should be there now.
    t1.Body().Contains(cookieValue)

    // Test Retrieve A Cookie.
    t2 := e.GET(fmt.Sprintf("/cookies/%s", cookieName)).Expect().Status(httptest.StatusOK)
    t2.Body().Equal(cookieValue)

    // Test Remove A Cookie.
    t3 := e.DELETE(fmt.Sprintf("/cookies/%s", cookieName)).Expect().Status(httptest.StatusOK)
    t3.Body().Contains(cookieName)

    t4 := e.GET(fmt.Sprintf("/cookies/%s", cookieName)).Expect().Status(httptest.StatusOK)
    t4.Cookies().Empty()
    t4.Body().Empty()
}

2.cookies加密

目录结构

主目录securecookie

    —— main.go
    —— main_test.go

代码示例

main.go

package main
//开发人员可以使用任何库添加自定义cookie编码器/解码器。
//在这个例子中,我们使用gorilla的securecookie包:
// $ go get github.com/gorilla/securecookie
// $ go run main.go

import (
    "github.com/kataras/iris"
    "github.com/gorilla/securecookie"
)

var (
    // AES仅支持16,24或32字节的密钥大小。
    //您需要准确提供该密钥字节大小,或者从您键入的内容中获取密钥。
    hashKey  = []byte("the-big-and-secret-fash-key-here")
    blockKey = []byte("lot-secret-of-characters-big-too")
    sc       = securecookie.New(hashKey, blockKey)
)

func newApp() *iris.Application {
    app := iris.New()
    app.Get("/cookies/{name}/{value}", func(ctx iris.Context) {
        name := ctx.Params().Get("name")
        value := ctx.Params().Get("value")
        //加密值
        ctx.SetCookieKV(name, value, iris.CookieEncode(sc.Encode)) // <--设置一个Cookie
        ctx.Writef("cookie added: %s = %s", name, value)
    })
    app.Get("/cookies/{name}", func(ctx iris.Context) {
        name := ctx.Params().Get("name")
        //解密值
        value := ctx.GetCookie(name, iris.CookieDecode(sc.Decode)) // <--检索Cookie
        ctx.WriteString(value)
    })
    app.Delete("/cookies/{name}", func(ctx iris.Context) {
        name := ctx.Params().Get("name")
        ctx.RemoveCookie(name) // <-- 删除Cookie
        ctx.Writef("cookie %s removed", name)
    })
    return app
}

func main() {
    app := newApp()
    app.Run(iris.Addr(":8080"))
}

main_test.go

package main

import (
    "fmt"
    "testing"
    "github.com/kataras/iris/httptest"
)

func TestCookiesBasic(t *testing.T) {
    app := newApp()
    e := httptest.New(t, app, httptest.URL("http://example.com"))

    cookieName, cookieValue := "my_cookie_name", "my_cookie_value"

    // Test Set A Cookie.
    t1 := e.GET(fmt.Sprintf("/cookies/%s/%s", cookieName, cookieValue)).Expect().Status(httptest.StatusOK)
    // note that this will not work because it doesn't always returns the same value:
    // cookieValueEncoded, _ := sc.Encode(cookieName, cookieValue)
    t1.Cookie(cookieName).Value().NotEqual(cookieValue) // validate cookie's existence and value is not on its raw form.
    t1.Body().Contains(cookieValue)

    // Test Retrieve A Cookie.
    t2 := e.GET(fmt.Sprintf("/cookies/%s", cookieName)).Expect().Status(httptest.StatusOK)
    t2.Body().Equal(cookieValue)

    // Test Remove A Cookie.
    t3 := e.DELETE(fmt.Sprintf("/cookies/%s", cookieName)).Expect().Status(httptest.StatusOK)
    t3.Body().Contains(cookieName)

    t4 := e.GET(fmt.Sprintf("/cookies/%s", cookieName)).Expect().Status(httptest.StatusOK)
    t4.Cookies().Empty()
    t4.Body().Empty()
}

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