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‎README.md

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@@ -147,4 +147,6 @@
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* [gorilla/schema](https://darjun/github.io/2021/07/22/godailylib/gorilla/schema)
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gorilla Web 开发包之表单处理库
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* [gorilla/securecookie](https://darjun/github.io/2021/07/22/godailylib/gorilla/schema)
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gorilla Web 开发包之安全 cookie 库
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gorilla Web 开发包之安全 cookie 库
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* [gorilla/sessions](https://darjun/github.io/2021/07/25/godailylib/gorilla/sessions)
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gorilla Web 开发包之 session 处理库

‎gorilla/sessions/auth/main.go

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package main
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import (
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"encoding/json"
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"github.com/gorilla/handlers"
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"github.com/gorilla/mux"
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"github.com/gorilla/securecookie"
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"github.com/gorilla/sessions"
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"html/template"
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"log"
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"net/http"
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"os"
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)
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type User struct {
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Username string
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Count int
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}
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var (
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ptTemplate *template.Template
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store = sessions.NewFilesystemStore("./", securecookie.GenerateRandomKey(32), securecookie.GenerateRandomKey(32))
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)
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func GetSessionUser(r *http.Request) *User {
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session, _ := store.Get(r, "user")
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s, ok := session.Values["user"]
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if !ok {
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return nil
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}
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u := &User{}
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json.Unmarshal([]byte(s.(string)), u)
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return u
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}
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func SaveSessionUser(w http.ResponseWriter, r *http.Request, u *User) {
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session, _ := store.Get(r, "user")
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data, _ := json.Marshal(u)
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session.Values["user"] = string(data)
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store.Save(r, w, session)
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}
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func HomeHandler(w http.ResponseWriter, r *http.Request) {
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u := GetSessionUser(r)
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ptTemplate.ExecuteTemplate(w, "home.tpl", u)
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}
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func Login(w http.ResponseWriter, r *http.Request) {
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ptTemplate.ExecuteTemplate(w, "login.tpl", nil)
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}
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func DoLogin(w http.ResponseWriter, r *http.Request) {
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r.ParseForm()
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username := r.Form.Get("username")
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password := r.Form.Get("password")
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if username != "darjun" || password != "handsome" {
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http.Redirect(w, r, "/login", http.StatusFound)
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return
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}
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SaveSessionUser(w, r, &User{Username: username})
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http.Redirect(w, r, "/", http.StatusFound)
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}
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func SecretHandler(w http.ResponseWriter, r *http.Request) {
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u := GetSessionUser(r)
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if u == nil {
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http.Redirect(w, r, "/login", http.StatusFound)
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return
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}
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u.Count++
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SaveSessionUser(w, r, u)
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ptTemplate.ExecuteTemplate(w, "secret.tpl", u)
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}
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func Logger(h http.Handler) http.Handler {
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return handlers.CombinedLoggingHandler(os.Stdout, h)
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}
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func main() {
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r := mux.NewRouter()
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r.Use(Logger)
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r.HandleFunc("/", HomeHandler)
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r.HandleFunc("/secret", SecretHandler)
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r.Handle("/login", handlers.MethodHandler{
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"GET": http.HandlerFunc(Login),
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"POST": http.HandlerFunc(DoLogin),
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})
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http.Handle("/", r)
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log.Fatal(http.ListenAndServe(":8080", nil))
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}
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func init() {
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ptTemplate = template.Must(template.New("").ParseGlob("./tpls/*.tpl"))
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}

‎gorilla/sessions/auth/tpls/home.tpl

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Home</title>
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</head>
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<body>
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{{ if . }}
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<p>Hi, {{ .Username }}</p><br>
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<a href="/secret">Goto secret?</a>
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{{ else }}
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<p>Hi, stranger</p><br>
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<a href="/login">Goto login?</a>
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{{ end }}
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</body>
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</html>

‎gorilla/sessions/auth/tpls/login.tpl

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Login</title>
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</head>
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<body>
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<form action="/login" method="post">
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<label>Username:</label>
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<input name="username"><br>
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<label>Password:</label>
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<input name="password" type="password"><br>
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<button type="submit">登录</button>
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</form>
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</body>
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</html>

‎gorilla/sessions/auth/tpls/secret.tpl

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Secret</title>
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</head>
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<body>
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<p>
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Lorem ipsum dolor sit amet consectetur adipisicing elit.
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Inventore a cumque sunt pariatur nihil doloremque tempore,
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consectetur ipsum sapiente id excepturi enim velit,
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quis nisi esse doloribus aliquid. Incidunt, dolore.
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</p>
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<p>You have visited this page {{ .Count }} times.</p>
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</body>
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</html>

‎gorilla/sessions/go.mod

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module github.com/darjun/go-daily-lib/gorilla/sessions
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go 1.16
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require (
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github.com/garyburd/redigo v1.6.2 // indirect
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github.com/gorilla/handlers v1.5.1 // indirect
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github.com/gorilla/mux v1.8.0 // indirect
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github.com/gorilla/sessions v1.2.1 // indirect
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gopkg.in/boj/redistore.v1 v1.0.0-20160128113310-fc113767cd6b // indirect
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)

‎gorilla/sessions/go.sum

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github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
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github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
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github.com/garyburd/redigo v1.6.2 h1:yE/pwKCrbLpLpQICzYTeZ7JsTA/C53wFTJHaEtRqniM=
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github.com/garyburd/redigo v1.6.2/go.mod h1:NR3MbYisc3/PwhQ00EMzDiPmrwpPxAn5GI05/YaO1SY=
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github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH4=
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github.com/gorilla/handlers v1.5.1/go.mod h1:t8XrUpc4KVXb7HGyJ4/cEnwQiaxrX/hz1Zv/4g96P1Q=
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github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
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github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
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github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyCS8BvQ=
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github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
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github.com/gorilla/sessions v1.2.1 h1:DHd3rPN5lE3Ts3D8rKkQ8x/0kqfeNmBAaiSi+o7FsgI=
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github.com/gorilla/sessions v1.2.1/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM=
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gopkg.in/boj/redistore.v1 v1.0.0-20160128113310-fc113767cd6b h1:U/Uqd1232+wrnHOvWNaxrNqn/kFnr4yu4blgPtQt0N8=
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gopkg.in/boj/redistore.v1 v1.0.0-20160128113310-fc113767cd6b/go.mod h1:fgfIZMlsafAHpspcks2Bul+MWUNw/2dyQmjC2faKjtg=

‎gorilla/sessions/nginx.conf

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#user nobody;
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worker_processes 1;
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#error_log logs/error.log;
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#error_log logs/error.log notice;
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#error_log logs/error.log info;
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#pid logs/nginx.pid;
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events {
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worker_connections 1024;
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}
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http {
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default_type application/octet-stream;
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#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
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# '$status $body_bytes_sent "$http_referer" '
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# '"$http_user_agent" "$http_x_forwarded_for"';
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#access_log logs/access.log main;
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sendfile on;
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#tcp_nopush on;
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#keepalive_timeout 0;
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keepalive_timeout 65;
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#gzip on;
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upstream mysvr {
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server localhost:8080;
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server localhost:8081;
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server localhost:8082;
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}
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server {
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listen 80;
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server_name localhost;
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#charset koi8-r;
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#access_log logs/host.access.log main;
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location / {
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proxy_pass http://mysvr;
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}
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#error_page 404 /404.html;
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# redirect server error pages to the static page /50x.html
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#
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error_page 500 502 503 504 /50x.html;
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location = /50x.html {
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root html;
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}
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# proxy the PHP scripts to Apache listening on 127.0.0.1:80
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#
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#location ~ \.php$ {
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# proxy_pass http://127.0.0.1;
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#}
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# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
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#
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#location ~ \.php$ {
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# root html;
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# fastcgi_pass 127.0.0.1:9000;
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# fastcgi_index index.php;
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# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
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# include fastcgi_params;
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#}
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# deny access to .htaccess files, if Apache's document root
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# concurs with nginx's one
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#
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#location ~ /\.ht {
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# deny all;
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#}
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}
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# another virtual host using mix of IP-, name-, and port-based configuration
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#
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#server {
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# listen 8000;
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# listen somename:8080;
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# server_name somename alias another.alias;
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# location / {
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# root html;
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# index index.html index.htm;
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# }
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#}
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# HTTPS server
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#
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#server {
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# listen 443 ssl;
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# server_name localhost;
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# ssl_certificate cert.pem;
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# ssl_certificate_key cert.key;
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# ssl_session_cache shared:SSL:1m;
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# ssl_session_timeout 5m;
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# ssl_ciphers HIGH:!aNULL:!MD5;
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# ssl_prefer_server_ciphers on;
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# location / {
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# root html;
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# index index.html index.htm;
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# }
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#}
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include servers/*;
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}

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