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Beego/middleware/error.go
2013-09-11 17:00:39 +08:00

309 lines
7.4 KiB
Go

package middleware
import (
"fmt"
"html/template"
"net/http"
"runtime"
"strconv"
)
var (
AppName string
VERSION string
)
var tpl = `
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>beego application error</title>
<style>
html, body, body * {padding: 0; margin: 0;}
#header {background:#ffd; border-bottom:solid 2px #A31515; padding: 20px 10px;}
#header h2{ }
#footer {border-top:solid 1px #aaa; padding: 5px 10px; font-size: 12px; color:green;}
#content {padding: 5px;}
#content .stack b{ font-size: 13px; color: red;}
#content .stack pre{padding-left: 10px;}
table {}
td.t {text-align: right; padding-right: 5px; color: #888;}
</style>
<script type="text/javascript">
</script>
</head>
<body>
<div id="header">
<h2>{{.AppError}}</h2>
</div>
<div id="content">
<table>
<tr>
<td class="t">Request Method: </td><td>{{.RequestMethod}}</td>
</tr>
<tr>
<td class="t">Request URL: </td><td>{{.RequestURL}}</td>
</tr>
<tr>
<td class="t">RemoteAddr: </td><td>{{.RemoteAddr }}</td>
</tr>
</table>
<div class="stack">
<b>Stack</b>
<pre>{{.Stack}}</pre>
</div>
</div>
<div id="footer">
<p>beego {{ .BeegoVersion }} (beego framework)</p>
<p>golang version: {{.GoVersion}}</p>
</div>
</body>
</html>
`
func ShowErr(err interface{}, rw http.ResponseWriter, r *http.Request, Stack string) {
t, _ := template.New("beegoerrortemp").Parse(tpl)
data := make(map[string]string)
data["AppError"] = AppName + ":" + fmt.Sprint(err)
data["RequestMethod"] = r.Method
data["RequestURL"] = r.RequestURI
data["RemoteAddr"] = r.RemoteAddr
data["Stack"] = Stack
data["BeegoVersion"] = VERSION
data["GoVersion"] = runtime.Version()
t.Execute(rw, data)
}
var errtpl = `
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>{{.Title}}</title>
<style type="text/css">
* {
margin:0;
padding:0;
}
body {
background-color:#EFEFEF;
font: .9em "Lucida Sans Unicode", "Lucida Grande", sans-serif;
}
#wrapper{
width:600px;
margin:40px auto 0;
text-align:center;
-moz-box-shadow: 5px 5px 10px rgba(0,0,0,0.3);
-webkit-box-shadow: 5px 5px 10px rgba(0,0,0,0.3);
box-shadow: 5px 5px 10px rgba(0,0,0,0.3);
}
#wrapper h1{
color:#FFF;
text-align:center;
margin-bottom:20px;
}
#wrapper a{
display:block;
font-size:.9em;
padding-top:20px;
color:#FFF;
text-decoration:none;
text-align:center;
}
#container {
width:600px;
padding-bottom:15px;
background-color:#FFFFFF;
}
.navtop{
height:40px;
background-color:#24B2EB;
padding:13px;
}
.content {
padding:10px 10px 25px;
background: #FFFFFF;
margin:;
color:#333;
}
a.button{
color:white;
padding:15px 20px;
text-shadow:1px 1px 0 #00A5FF;
font-weight:bold;
text-align:center;
border:1px solid #24B2EB;
margin:0px 200px;
clear:both;
background-color: #24B2EB;
border-radius:100px;
-moz-border-radius:100px;
-webkit-border-radius:100px;
}
a.button:hover{
text-decoration:none;
background-color: #24B2EB;
}
</style>
</head>
<body>
<div id="wrapper">
<div id="container">
<div class="navtop">
<h1>{{.Title}}</h1>
</div>
<div id="content">
{{.Content}}
<a href="/" title="Home" class="button">Go Home</a><br />
<br>power by beego {{.BeegoVersion}}
</div>
</div>
</div>
</body>
</html>
`
var ErrorMaps map[string]http.HandlerFunc
func init() {
ErrorMaps = make(map[string]http.HandlerFunc)
}
//404
func NotFound(rw http.ResponseWriter, r *http.Request) {
t, _ := template.New("beegoerrortemp").Parse(errtpl)
data := make(map[string]interface{})
data["Title"] = "Page Not Found"
data["Content"] = template.HTML("<br>The Page You have requested flown the coop." +
"<br>Perhaps you are here because:" +
"<br><br><ul>" +
"<br>The page has moved" +
"<br>The page no longer exists" +
"<br>You were looking for your puppy and got lost" +
"<br>You like 404 pages" +
"</ul>")
data["BeegoVersion"] = VERSION
rw.WriteHeader(http.StatusNotFound)
t.Execute(rw, data)
}
//401
func Unauthorized(rw http.ResponseWriter, r *http.Request) {
t, _ := template.New("beegoerrortemp").Parse(errtpl)
data := make(map[string]interface{})
data["Title"] = "Unauthorized"
data["Content"] = template.HTML("<br>The Page You have requested can't authorized." +
"<br>Perhaps you are here because:" +
"<br><br><ul>" +
"<br>Check the credentials that you supplied" +
"<br>Check the address for errors" +
"</ul>")
data["BeegoVersion"] = VERSION
rw.WriteHeader(http.StatusUnauthorized)
t.Execute(rw, data)
}
//403
func Forbidden(rw http.ResponseWriter, r *http.Request) {
t, _ := template.New("beegoerrortemp").Parse(errtpl)
data := make(map[string]interface{})
data["Title"] = "Forbidden"
data["Content"] = template.HTML("<br>The Page You have requested forbidden." +
"<br>Perhaps you are here because:" +
"<br><br><ul>" +
"<br>Your address may be blocked" +
"<br>The site may be disabled" +
"<br>You need to log in" +
"</ul>")
data["BeegoVersion"] = VERSION
rw.WriteHeader(http.StatusForbidden)
t.Execute(rw, data)
}
//503
func ServiceUnavailable(rw http.ResponseWriter, r *http.Request) {
t, _ := template.New("beegoerrortemp").Parse(errtpl)
data := make(map[string]interface{})
data["Title"] = "Service Unavailable"
data["Content"] = template.HTML("<br>The Page You have requested unavailable." +
"<br>Perhaps you are here because:" +
"<br><br><ul>" +
"<br><br>The page is overloaded" +
"<br>Please try again later." +
"</ul>")
data["BeegoVersion"] = VERSION
rw.WriteHeader(http.StatusServiceUnavailable)
t.Execute(rw, data)
}
//500
func InternalServerError(rw http.ResponseWriter, r *http.Request) {
t, _ := template.New("beegoerrortemp").Parse(errtpl)
data := make(map[string]interface{})
data["Title"] = "Internal Server Error"
data["Content"] = template.HTML("<br>The Page You have requested has down now." +
"<br><br><ul>" +
"<br>simply try again later" +
"<br>you should report the fault to the website administrator" +
"</ul>")
data["BeegoVersion"] = VERSION
rw.WriteHeader(http.StatusInternalServerError)
t.Execute(rw, data)
}
func Errorhandler(err string, h http.HandlerFunc) {
ErrorMaps[err] = h
}
func RegisterErrorHander() {
if _, ok := ErrorMaps["404"]; !ok {
ErrorMaps["404"] = NotFound
}
if _, ok := ErrorMaps["401"]; !ok {
ErrorMaps["401"] = Unauthorized
}
if _, ok := ErrorMaps["403"]; !ok {
ErrorMaps["403"] = Forbidden
}
if _, ok := ErrorMaps["503"]; !ok {
ErrorMaps["503"] = ServiceUnavailable
}
if _, ok := ErrorMaps["500"]; !ok {
ErrorMaps["500"] = InternalServerError
}
}
func Exception(errcode string, w http.ResponseWriter, r *http.Request, msg string) {
if h, ok := ErrorMaps[errcode]; ok {
h(w, r)
return
} else {
isint, err := strconv.Atoi(errcode)
if err != nil {
isint = 500
}
if isint == 400 {
msg = "404 page not found"
}
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
w.WriteHeader(isint)
fmt.Fprintln(w, msg)
return
}
}