/
admin_controller.go
293 lines (250 loc) · 7.69 KB
/
admin_controller.go
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// Copyright 2020
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package web
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"strconv"
"text/template"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/beego/beego/v2/core/admin"
)
type adminController struct {
Controller
servers []*HttpServer
}
func (a *adminController) registerHttpServer(svr *HttpServer) {
a.servers = append(a.servers, svr)
}
// ProfIndex is a http.Handler for showing profile command.
// it's in url pattern "/prof" in admin module.
func (a *adminController) ProfIndex() {
rw, r := a.Ctx.ResponseWriter, a.Ctx.Request
r.ParseForm()
command := r.Form.Get("command")
if command == "" {
return
}
var (
format = r.Form.Get("format")
data = make(map[interface{}]interface{})
result bytes.Buffer
)
admin.ProcessInput(command, &result)
data["Content"] = template.HTMLEscapeString(result.String())
if format == "json" && command == "gc summary" {
dataJSON, err := json.Marshal(data)
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
writeJSON(rw, dataJSON)
return
}
data["Title"] = template.HTMLEscapeString(command)
defaultTpl := defaultScriptsTpl
if command == "gc summary" {
defaultTpl = gcAjaxTpl
}
writeTemplate(rw, data, profillingTpl, defaultTpl)
}
func (a *adminController) PrometheusMetrics() {
promhttp.Handler().ServeHTTP(a.Ctx.ResponseWriter, a.Ctx.Request)
}
// TaskStatus is a http.Handler with running task status (task name, status and the last execution).
// it's in "/task" pattern in admin module.
func (a *adminController) TaskStatus() {
rw, req := a.Ctx.ResponseWriter, a.Ctx.Request
data := make(map[interface{}]interface{})
// Run Task
req.ParseForm()
taskname := req.Form.Get("taskname")
if taskname != "" {
cmd := admin.GetCommand("task", "run")
res := cmd.Execute(taskname)
if res.IsSuccess() {
data["Message"] = []string{
"success",
template.HTMLEscapeString(fmt.Sprintf("%s run success,Now the Status is <br>%s",
taskname, res.Content.(string))),
}
} else {
data["Message"] = []string{"error", template.HTMLEscapeString(fmt.Sprintf("%s", res.Error))}
}
}
// List Tasks
content := make(M)
resultList := admin.GetCommand("task", "list").Execute().Content.([][]string)
fields := []string{
"Task Name",
"Task Spec",
"Task Status",
"Last Time",
"",
}
content["Fields"] = fields
content["Data"] = resultList
data["Content"] = content
data["Title"] = "Tasks"
writeTemplate(rw, data, tasksTpl, defaultScriptsTpl)
}
func (a *adminController) AdminIndex() {
// AdminIndex is the default http.Handler for admin module.
// it matches url pattern "/".
writeTemplate(a.Ctx.ResponseWriter, map[interface{}]interface{}{}, indexTpl, defaultScriptsTpl)
}
// Healthcheck is a http.Handler calling health checking and showing the result.
// it's in "/healthcheck" pattern in admin module.
func (a *adminController) Healthcheck() {
heathCheck(a.Ctx.ResponseWriter, a.Ctx.Request)
}
func heathCheck(rw http.ResponseWriter, r *http.Request) {
var (
result []string
data = make(map[interface{}]interface{})
resultList = new([][]string)
content = M{
"Fields": []string{"Name", "Message", "Status"},
}
)
for name, h := range admin.AdminCheckList {
if err := h.Check(); err != nil {
result = []string{
"error",
template.HTMLEscapeString(name),
template.HTMLEscapeString(err.Error()),
}
} else {
result = []string{
"success",
template.HTMLEscapeString(name),
"OK",
}
}
*resultList = append(*resultList, result)
}
queryParams := r.URL.Query()
jsonFlag := queryParams.Get("json")
shouldReturnJSON, _ := strconv.ParseBool(jsonFlag)
if shouldReturnJSON {
response := buildHealthCheckResponseList(resultList)
jsonResponse, err := json.Marshal(response)
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
} else {
writeJSON(rw, jsonResponse)
}
return
}
content["Data"] = resultList
data["Content"] = content
data["Title"] = "Health Check"
writeTemplate(rw, data, healthCheckTpl, defaultScriptsTpl)
}
// QpsIndex is the http.Handler for writing qps statistics map result info in http.ResponseWriter.
// it's registered with url pattern "/qps" in admin module.
func (a *adminController) QpsIndex() {
data := make(map[interface{}]interface{})
data["Content"] = StatisticsMap.GetMap()
// do html escape before display path, avoid xss
if content, ok := (data["Content"]).(M); ok {
if resultLists, ok := (content["Data"]).([][]string); ok {
for i := range resultLists {
if len(resultLists[i]) > 0 {
resultLists[i][0] = template.HTMLEscapeString(resultLists[i][0])
}
}
}
}
writeTemplate(a.Ctx.ResponseWriter, data, qpsTpl, defaultScriptsTpl)
}
// ListConf is the http.Handler of displaying all beego configuration values as key/value pair.
// it's registered with url pattern "/listconf" in admin module.
func (a *adminController) ListConf() {
rw := a.Ctx.ResponseWriter
r := a.Ctx.Request
r.ParseForm()
command := r.Form.Get("command")
if command == "" {
rw.Write([]byte("command not support"))
return
}
data := make(map[interface{}]interface{})
switch command {
case "conf":
m := make(M)
list("BConfig", BConfig, m)
m["appConfigPath"] = template.HTMLEscapeString(appConfigPath)
m["appConfigProvider"] = template.HTMLEscapeString(appConfigProvider)
tmpl := template.Must(template.New("dashboard").Parse(dashboardTpl))
tmpl = template.Must(tmpl.Parse(configTpl))
tmpl = template.Must(tmpl.Parse(defaultScriptsTpl))
data["Content"] = m
tmpl.Execute(rw, data)
case "router":
content := BeeApp.PrintTree()
content["Fields"] = []string{
"Router Pattern",
"Methods",
"Controller",
}
data["Content"] = content
data["Title"] = "Routers"
writeTemplate(rw, data, routerAndFilterTpl, defaultScriptsTpl)
case "filter":
content := M{
"Fields": []string{
"Router Pattern",
"Filter Function",
},
}
filterTypeData := BeeApp.reportFilter()
filterTypes := make([]string, 0, len(filterTypeData))
for k := range filterTypeData {
filterTypes = append(filterTypes, k)
}
content["Data"] = filterTypeData
content["Methods"] = filterTypes
data["Content"] = content
data["Title"] = "Filters"
writeTemplate(rw, data, routerAndFilterTpl, defaultScriptsTpl)
default:
rw.Write([]byte("command not support"))
}
}
func writeTemplate(rw http.ResponseWriter, data map[interface{}]interface{}, tpls ...string) {
tmpl := template.Must(template.New("dashboard").Parse(dashboardTpl))
for _, tpl := range tpls {
tmpl = template.Must(tmpl.Parse(tpl))
}
tmpl.Execute(rw, data)
}
func buildHealthCheckResponseList(healthCheckResults *[][]string) []map[string]interface{} {
response := make([]map[string]interface{}, len(*healthCheckResults))
for i, healthCheckResult := range *healthCheckResults {
currentResultMap := make(map[string]interface{})
currentResultMap["name"] = healthCheckResult[0]
currentResultMap["message"] = healthCheckResult[1]
currentResultMap["status"] = healthCheckResult[2]
response[i] = currentResultMap
}
return response
}
// PrintTree print all routers
// Deprecated using BeeApp directly
func PrintTree() M {
return BeeApp.PrintTree()
}