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manageHandler.go
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manageHandler.go
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package motan
import (
"bufio"
"bytes"
"encoding/json"
"fmt"
"github.com/weibocom/motan-go/meta"
mserver "github.com/weibocom/motan-go/server"
"html/template"
"io"
"log"
"math"
"math/rand"
"net/http"
nppf "net/http/pprof"
"os"
"runtime"
"runtime/pprof"
"runtime/trace"
"strconv"
"strings"
"sync/atomic"
"time"
"github.com/shirou/gopsutil/v3/cpu"
"github.com/shirou/gopsutil/v3/host"
"github.com/shirou/gopsutil/v3/load"
"github.com/shirou/gopsutil/v3/mem"
"github.com/shirou/gopsutil/v3/net"
"github.com/shirou/gopsutil/v3/process"
"github.com/weibocom/motan-go/cluster"
motan "github.com/weibocom/motan-go/core"
"github.com/weibocom/motan-go/filter"
"github.com/weibocom/motan-go/log"
"github.com/weibocom/motan-go/metrics"
"github.com/weibocom/motan-go/protocol"
)
// SetAgent : if need agent to do sth, the handler can implement this interface,
// the func SetAgent will called when agent init the handler
type SetAgent interface {
SetAgent(agent *Agent)
}
// StatusHandler can change http status, such as 200, 503
// the registed services will not available when status is 503, and will available when status change to 200
type StatusHandler struct {
a *Agent
}
func (s *StatusHandler) SetAgent(agent *Agent) {
s.a = agent
}
func (s *StatusHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
switch req.URL.Path {
case "/200":
s.a.availableAllServices()
s.a.status = http.StatusOK
s.a.saveStatus()
rw.Write([]byte("ok."))
case "/503":
s.a.unavailableAllServices()
s.a.status = http.StatusServiceUnavailable
s.a.saveStatus()
rw.Write([]byte("ok."))
case "/version":
rw.Write([]byte(Version))
case "/status":
rw.Write(s.getStatus())
case "/registry/status":
rw.Write(s.getRegistryStatus())
default:
rw.WriteHeader(int(s.a.status))
rw.Write([]byte(http.StatusText(int(s.a.status))))
}
}
func (s *StatusHandler) getRegistryStatus() []byte {
type (
ResultStatus struct {
Group string `json:"group"`
Service string `json:"service"`
Registry string `json:"registry"`
Status string `json:"status"`
ErrMsg string `json:"errMsg"`
IsCheck bool `json:"isCheck"`
}
Result struct {
Status string `json:"status"`
RegistryStatus []ResultStatus `json:"registryStatus"`
}
)
statuses := s.a.GetRegistryStatus()
var res []ResultStatus
curAgentStatus := atomic.LoadInt64(&s.a.status)
var resStatus string
if curAgentStatus == http.StatusOK {
resStatus = motan.RegisterSuccess
} else {
resStatus = motan.UnregisterSuccess
}
for _, j := range statuses {
for _, k := range j {
res = append(res, ResultStatus{
Group: k.Service.Group,
Service: k.Service.Path,
Registry: k.Service.GetParam(motan.RegistryKey, ""),
Status: k.Status,
ErrMsg: k.ErrMsg,
IsCheck: k.IsCheck,
})
if k.IsCheck {
if curAgentStatus == http.StatusOK {
if k.Status == motan.RegisterFailed {
resStatus = k.Status
} else if k.Status == motan.NotRegister && resStatus != motan.RegisterFailed {
resStatus = k.Status
}
} else {
if k.Status == motan.UnregisterFailed {
resStatus = k.Status
} else if k.Status == motan.NotRegister && resStatus != motan.UnregisterFailed {
resStatus = k.Status
}
}
}
}
}
resByte, _ := json.Marshal(Result{
Status: resStatus,
RegistryStatus: res,
})
return resByte
}
func (s *StatusHandler) getStatus() []byte {
type (
MethodStatus struct {
Name string `json:"name"`
PeriodCallCount int64 `json:"period_call_count"`
}
ServiceStatus struct {
Group string `json:"group"`
Name string `json:"name"`
Methods []MethodStatus `json:"methods"`
}
Result struct {
Status int `json:"status"`
ServicePeriodCallCount int64 `json:"service_period_call_count"`
Services []ServiceStatus `json:"services"`
}
)
result := Result{
Status: int(s.a.status),
Services: make([]ServiceStatus, 0, 16),
}
s.a.serviceExporters.Range(func(k, v interface{}) bool {
exporter := v.(motan.Exporter)
group := exporter.GetURL().Group
service := exporter.GetURL().Path
statItem := metrics.GetStatItem(group, "", service)
if statItem == nil {
return true
}
snapshot := statItem.Snapshot()
if snapshot == nil {
return true
}
serviceInfo := ServiceStatus{
Group: group,
Name: service,
Methods: make([]MethodStatus, 0, 16),
}
snapshot.RangeKey(func(k string) {
if !strings.HasSuffix(k, filter.MetricsTotalCountSuffix) {
return
}
method := k[:len(k)-filter.MetricsTotalCountSuffixLen]
if index := strings.LastIndex(k, ":"); index != -1 {
method = method[index+1:]
}
callCount := snapshot.Count(k)
result.ServicePeriodCallCount += callCount
serviceInfo.Methods = append(serviceInfo.Methods, MethodStatus{
Name: method,
PeriodCallCount: callCount,
})
})
result.Services = append(result.Services, serviceInfo)
return true
})
resultBytes, _ := json.MarshalIndent(struct {
Code int `json:"code"`
Body Result `json:"body"`
}{
Code: 200,
Body: result,
}, "", " ")
return resultBytes
}
type InfoHandler struct {
a *Agent
}
func (i *InfoHandler) SetAgent(agent *Agent) {
i.a = agent
}
func (i *InfoHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
switch req.URL.Path {
case "/getConfig":
rw.Write(i.a.getConfigData())
case "/getReferService":
rw.Write(i.getReferService())
case "/getAllService":
rw.Write(i.getAllServices())
}
}
func (i *InfoHandler) getAllServices() []byte {
sMap := make(map[string][]*motan.URL)
var serviceList []*motan.URL
for _, s := range i.a.Context.ServiceURLs {
serviceList = append(serviceList, s)
}
sMap["services"] = serviceList
sMap["dynamic_services"] = i.a.GetDynamicRegistryInfo().RegisterNodes
b, _ := json.Marshal(sMap)
return b
}
func (i *InfoHandler) getReferService() []byte {
mbody := body{Service: []rpcService{}}
i.a.clusterMap.Range(func(k, v interface{}) bool {
cls := v.(*cluster.MotanCluster)
available := cls.IsAvailable()
mbody.Service = append(mbody.Service, rpcService{Name: k.(string), Status: available})
return true
})
retData := jsonRetData{Code: 200, Body: mbody}
data, _ := json.Marshal(retData)
return data
}
type rpcService struct {
Name string `json:"name"`
Status bool `json:"status"`
}
type body struct {
Service []rpcService `json:"service"`
}
type jsonRetData struct {
Code int `json:"code"`
Body body `json:"body"`
}
// DebugHandler control pprof dynamically
// ***the func of pprof is copied from net/http/pprof ***
type DebugHandler struct {
enable bool
}
// ServeHTTP implement handler interface
func (d *DebugHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
if req.URL.Path == "/debug/pprof/sw" {
t := req.Header.Get("ctr")
switch t {
case "op": // open pprof
d.enable = true
rw.Write([]byte("T"))
case "cp": //close pprof
d.enable = false
rw.Write([]byte("F"))
}
} else if d.enable {
switch req.URL.Path {
case "/debug/pprof/cmdline":
Cmdline(rw, req)
case "/debug/pprof/profile":
Profile(rw, req)
case "/debug/pprof/symbol":
Symbol(rw, req)
case "/debug/pprof/trace":
Trace(rw, req)
case "/debug/pprof/allocs":
nppf.Handler("allocs").ServeHTTP(rw, req)
case "/debug/pprof/block":
nppf.Handler("block").ServeHTTP(rw, req)
case "/debug/pprof/goroutine":
nppf.Handler("goroutine").ServeHTTP(rw, req)
case "/debug/pprof/mutex":
nppf.Handler("mutex").ServeHTTP(rw, req)
case "/debug/pprof/heap":
nppf.Handler("heap").ServeHTTP(rw, req)
case "/debug/mesh/trace":
MeshTrace(rw, req)
case "/debug/stat/system":
StatSystem(rw)
case "/debug/stat/process":
StatProcess(rw)
case "/debug/stat/openFiles":
StatOpenFiles(rw)
case "/debug/stat/connections":
StatConnections(rw)
default:
Index(rw, req)
}
}
}
type StatMemInfo struct {
MemTotal uint64 `json:"memTotal(MB)"`
MemUsed uint64 `json:"memUsed(MB)"`
MemPercent float64 `json:"memPercent"`
SwapTotal uint64 `json:"swapTotal(MB)"`
SwapUsed uint64 `json:"swapUsed(MB)"`
SwapPercent float64 `json:"swapPercent"`
}
type StatNetInfo struct {
Name string `json:"name"`
SentRate uint64 `json:"sentRate(B/s)"`
RecvRate uint64 `json:"recvRate(B/s)"`
IP []string `json:"ip"`
}
type StatConn struct {
Listen uint32 `json:"LISTEN"`
Established uint32 `json:"ESTABLISHED"`
TimeWait uint32 `json:"TIME_WAIT"`
}
type StatConnInfo struct {
Fd uint32 `json:"fd"`
Status string `json:"status"`
LocalAddr string `json:"localAddr"`
RemoteAddr string `json:"remoteAddr"`
}
type StatIOInfo struct {
ReadTotal uint64 `json:"readTotal(B)"`
ReadRate uint64 `json:"readRate(B/s)"`
WriteTotal uint64 `json:"writsTotal(B)"`
WriteRate uint64 `json:"writsRate(B/s)"`
}
type StatSystemEntity struct {
CpuCores int32 `json:"cpuCores"`
Load1 float64 `json:"load1"`
Load5 float64 `json:"load5"`
Load15 float64 `json:"load15"`
CpuPercent float64 `json:"cpuPercent"`
HostName string `json:"hostName"`
Platform string `json:"platform"`
PlatformVersion string `json:"platformVersion"`
KernelVersion string `json:"kernelVersion"`
GoVersion string `json:"goVersion"`
BootTime string `json:"bootTime"`
MemInfo *StatMemInfo `json:"memInfo"`
NetInfo []StatNetInfo `json:"netInfo"`
}
type StatProcessEntity struct {
NumThreads int32 `json:"numThreads"`
NumFDs int32 `json:"numFds"`
CpuPercent float64 `json:"cpuPercent"`
MemoryPercent float32 `json:"memoryPercent"`
UsedMemory float64 `json:"usedMemory(MB)"`
OpenFilesCount int32 `json:"openFilesCount"`
CreateTime string `json:"createTime"`
IO *StatIOInfo `json:"io"`
Connections *StatConn `json:"connections"`
}
func StatSystem(w http.ResponseWriter) {
var cpuCores int32
c, _ := cpu.Info()
for _, value := range c {
cpuCores += value.Cores
}
virtual, _ := mem.VirtualMemory()
swap, _ := mem.SwapMemory()
memInfo := StatMemInfo{
MemTotal: virtual.Total >> 20,
MemUsed: virtual.Used >> 20,
MemPercent: oneDecimal(virtual.UsedPercent),
SwapTotal: swap.Total >> 20,
SwapUsed: swap.Used >> 20,
SwapPercent: oneDecimal(swap.UsedPercent),
}
netInfoPre := make(map[string]net.IOCountersStat)
netIOPre, _ := net.IOCounters(true)
for _, n := range netIOPre {
netInfoPre[n.Name] = n
}
if netIoAllPre, err := net.IOCounters(false); err == nil {
netInfoPre[netIoAllPre[0].Name] = netIoAllPre[0]
}
time.Sleep(time.Second)
interfaceList, _ := net.Interfaces()
interfaceMap := make(map[string][]string)
for _, inter := range interfaceList {
var addrList []string
for _, addr := range inter.Addrs {
addrList = append(addrList, addr.Addr)
}
interfaceMap[inter.Name] = addrList
}
netIOEnd, _ := net.IOCounters(true)
var netInfo []StatNetInfo
for _, n := range netIOEnd {
netInfo = append(netInfo, StatNetInfo{
Name: n.Name,
IP: interfaceMap[n.Name],
SentRate: n.BytesSent - netInfoPre[n.Name].BytesSent,
RecvRate: n.BytesRecv - netInfoPre[n.Name].BytesRecv,
})
}
if netIoAllPre, err := net.IOCounters(false); err == nil {
netInfo = append(netInfo, StatNetInfo{
Name: netIoAllPre[0].Name,
SentRate: netIoAllPre[0].BytesSent - netInfoPre[netIoAllPre[0].Name].BytesSent,
RecvRate: netIoAllPre[0].BytesRecv - netInfoPre[netIoAllPre[0].Name].BytesRecv,
})
}
cpuPercent, _ := cpu.Percent(time.Second, false)
var cpuPer float64
if len(cpuPercent) > 0 {
cpuPer = cpuPercent[0]
}
l, _ := load.Avg()
n, _ := host.Info()
hTime, _ := host.BootTime()
statSystem := StatSystemEntity{
HostName: n.Hostname,
Platform: n.Platform,
PlatformVersion: n.PlatformVersion,
KernelVersion: n.KernelVersion,
GoVersion: runtime.Version(),
BootTime: time.Unix(int64(hTime), 0).String(),
CpuCores: cpuCores,
MemInfo: &memInfo,
NetInfo: netInfo,
Load1: l.Load1,
Load5: l.Load5,
Load15: l.Load15,
CpuPercent: oneDecimal(cpuPer),
}
data, _ := json.Marshal(statSystem)
_, _ = w.Write(data)
}
func StatProcess(w http.ResponseWriter) {
checkPid := os.Getpid()
p, _ := process.NewProcess(int32(checkPid))
numThreads, _ := p.NumThreads()
numFDs, _ := p.NumFDs()
cpuPercent, _ := p.CPUPercent()
connections, _ := p.Connections()
connInfo := StatConn{}
for _, value := range connections {
switch value.Status {
case "LISTEN":
connInfo.Listen++
case "ESTABLISHED":
connInfo.Established++
case "TIME_WAIT":
connInfo.TimeWait++
}
}
createTime, _ := p.CreateTime()
memInfo, _ := p.MemoryInfo()
memoryPercent, _ := p.MemoryPercent()
openFiles, _ := p.OpenFiles()
var ioCounters *StatIOInfo
if ioCountersStart, err := p.IOCounters(); err == nil {
time.Sleep(time.Second)
ioCountersEnd, _ := p.IOCounters()
ioCounters = &StatIOInfo{
ReadTotal: ioCountersEnd.ReadBytes,
ReadRate: ioCountersEnd.ReadBytes - ioCountersStart.ReadBytes,
WriteTotal: ioCountersEnd.WriteBytes,
WriteRate: ioCountersEnd.WriteBytes - ioCountersStart.WriteBytes,
}
}
statProcess := StatProcessEntity{
NumThreads: numThreads,
NumFDs: numFDs,
CpuPercent: oneDecimal(cpuPercent),
CreateTime: time.Unix(createTime/1000, 0).String(),
MemoryPercent: float32(oneDecimal(float64(memoryPercent))),
UsedMemory: oneDecimal(float64(memInfo.RSS) / 1000000),
IO: ioCounters,
OpenFilesCount: int32(len(openFiles)),
Connections: &connInfo,
}
data, _ := json.Marshal(statProcess)
_, _ = w.Write(data)
}
func oneDecimal(value float64) float64 {
return math.Trunc(value*10+0.5) / 10
}
func StatOpenFiles(w http.ResponseWriter) {
checkPid := os.Getpid()
p, _ := process.NewProcess(int32(checkPid))
openFiles, _ := p.OpenFiles()
data, _ := json.Marshal(openFiles)
_, _ = w.Write(data)
}
func StatConnections(w http.ResponseWriter) {
checkPid := os.Getpid()
p, _ := process.NewProcess(int32(checkPid))
connections, _ := p.Connections()
var conns []StatConnInfo
for _, value := range connections {
conns = append(conns, StatConnInfo{
Fd: value.Fd,
Status: value.Status,
LocalAddr: value.Laddr.IP + ":" + strconv.FormatUint(uint64(value.Laddr.Port), 10),
RemoteAddr: value.Raddr.IP + ":" + strconv.FormatUint(uint64(value.Raddr.Port), 10),
})
}
data, _ := json.Marshal(conns)
_, _ = w.Write(data)
}
func MeshTrace(w http.ResponseWriter, r *http.Request) {
sec, _ := strconv.ParseInt(r.FormValue("seconds"), 10, 64)
if sec == 0 {
sec = 30
}
addr := strings.TrimSpace(r.FormValue("addr"))
group := strings.TrimSpace(r.FormValue("group"))
path := strings.TrimSpace(r.FormValue("service"))
ratio, _ := strconv.ParseInt(r.FormValue("ratio"), 10, 64) // percentage 1-100
ct := &CustomTrace{addr: addr, group: group, path: path, ratio: int(ratio)}
oldTrace := motan.TracePolicy
motan.TracePolicy = ct.Trace
sleep(w, time.Duration(sec)*time.Second)
motan.TracePolicy = oldTrace
tcs := motan.GetTraceContexts()
fmt.Fprintf(w, "mesh trace finish. trace size:%d， time unit:ns\n", len(tcs))
for i, tc := range tcs {
fmt.Fprintf(w, "{\"No\":%d,\"trace\":%s}\n", i, formatTc(tc))
}
}
func formatTc(tc *motan.TraceContext) string {
processReqSpan(tc.ReqSpans)
processResSpan(tc.ResSpans)
if len(tc.ReqSpans) > 0 && len(tc.ResSpans) > 0 {
tc.Values["requestTime"] = strconv.FormatInt(tc.ReqSpans[len(tc.ReqSpans)-1].Time.UnixNano()-tc.ReqSpans[0].Time.UnixNano(), 10)
tc.Values["responseTime"] = strconv.FormatInt(tc.ResSpans[len(tc.ResSpans)-1].Time.UnixNano()-tc.ResSpans[0].Time.UnixNano(), 10)
tc.Values["remoteTime"] = strconv.FormatInt(tc.ResSpans[0].Time.UnixNano()-tc.ReqSpans[len(tc.ReqSpans)-1].Time.UnixNano(), 10)
tc.Values["totalTime"] = strconv.FormatInt(tc.ResSpans[len(tc.ResSpans)-1].Time.UnixNano()-tc.ReqSpans[0].Time.UnixNano(), 10)
}
data, _ := json.MarshalIndent(tc, "", " ")
return string(data)
}
func processReqSpan(spans []*motan.Span) {
m := make(map[string]int64, 16)
var defaultLastTime int64
for _, rqs := range spans {
if rqs.Addr == "" {
if defaultLastTime > 0 {
rqs.Duration = rqs.Time.UnixNano() - defaultLastTime
} else {
rqs.Duration = 0
}
defaultLastTime = rqs.Time.UnixNano()
} else {
if t, ok := m[rqs.Addr]; ok {
rqs.Duration = rqs.Time.UnixNano() - t
} else if defaultLastTime > 0 {
rqs.Duration = rqs.Time.UnixNano() - defaultLastTime
} else {
rqs.Duration = 0
}
m[rqs.Addr] = rqs.Time.UnixNano()
}
}
}
func processResSpan(spans []*motan.Span) {
var lastTime int64
for _, rqs := range spans {
if lastTime > 0 {
rqs.Duration = rqs.Time.UnixNano() - lastTime
} else {
rqs.Duration = 0
}
lastTime = rqs.Time.UnixNano()
}
}
type CustomTrace struct {
path string
group string
addr string
ratio int
}
func (c *CustomTrace) Trace(rid uint64, ext *motan.StringMap) *motan.TraceContext {
if c.addr != "" {
addr := ext.LoadOrEmpty(motan.HostKey)
if !strings.HasPrefix(addr, c.addr) {
return nil
}
}
if c.group != "" {
group := ext.LoadOrEmpty(protocol.MGroup)
if group != c.group {
return nil
}
}
if c.path != "" {
path := ext.LoadOrEmpty(protocol.MPath)
if path != c.path {
return nil
}
}
if c.ratio > 0 && c.ratio < 100 {
n := rand.Intn(100)
if n >= c.ratio {
return nil
}
}
return motan.NewTraceContext(rid)
}
type SwitcherHandler struct{}
func (s *SwitcherHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
name := r.FormValue("name")
value := r.FormValue("value")
switcher := motan.GetSwitcherManager()
switch r.URL.Path {
case "/switcher/set":
if name == "" {
fmt.Fprintf(w, "Please specify a switcher name!")
return
}
if value == "" {
fmt.Fprintf(w, "Please specify a switcher value!")
return
}
valueBool, err := strconv.ParseBool(value)
if err != nil {
fmt.Fprintf(w, "Invalid switcher value(must be Bool): %s", value)
return
}
s := switcher.GetSwitcher(name)
if s == nil {
fmt.Fprintf(w, "Not a registered switcher, name: %s", name)
return
}
s.SetValue(valueBool)
fmt.Fprintf(w, "Set switcher %s value to %s !", name, value)
case "/switcher/get":
if name == "" {
fmt.Fprintf(w, "Please specify a switcher name!")
return
}
s := switcher.GetSwitcher(name)
if s == nil {
fmt.Fprintf(w, "Not a registered switcher, name: %s", name)
return
}
value := s.IsOpen()
fmt.Fprintf(w, "Switcher value for %s is %v!", name, value)
case "/switcher/getAll":
result := switcher.GetAllSwitchers()
b, _ := json.Marshal(result)
w.Write(b)
}
}
type LogHandler struct{}
type logResponse struct {
Code int `json:"code"`
Body string `json:"body"`
}
func (l *LogHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
jsonEncoder := json.NewEncoder(w)
type resBody struct {
Level string `json:"level"`
AccessLog bool `json:"accessLog"`
MetricsLog bool `json:"metricsLog"`
}
switch r.URL.Path {
case "/logConfig/get":
body, _ := json.Marshal(resBody{
Level: vlog.GetLevel().String(),
AccessLog: vlog.GetAccessLogAvailable(),
MetricsLog: vlog.GetMetricsLogAvailable()})
_ = jsonEncoder.Encode(logResponse{
Code: 200,
Body: string(body)})
case "/logConfig/set":
if lvlString := r.FormValue("level"); lvlString != "" {
var lvl vlog.LogLevel
if err := lvl.Set(lvlString); err == nil {
vlog.SetLevel(lvl)
_ = jsonEncoder.Encode(logResponse{Code: 200, Body: "set log level:" + lvlString})
vlog.Infoln("set log level:", lvlString)
} else {
_ = jsonEncoder.Encode(logResponse{Code: 500, Body: "set log level failed. err:" + err.Error()})
vlog.Warningln("set log level failed. err:", err.Error())
}
} else if available := r.FormValue("access"); available != "" {
setLogStatus(jsonEncoder, "accessLog", available)
} else if available := r.FormValue("metrics"); available != "" {
setLogStatus(jsonEncoder, "metricsLog", available)
}
}
}
func setLogStatus(jsonEncoder *json.Encoder, logType, available string) {
if status, err := strconv.ParseBool(available); err == nil {
switch logType {
case "accessLog":
vlog.SetAccessLogAvailable(status)
case "metricsLog":
vlog.SetMetricsLogAvailable(status)
}
_ = jsonEncoder.Encode(logResponse{Code: 200, Body: "set " + logType + " status:" + available})
vlog.Infoln("set "+logType+" status:", status)
} else {
_ = jsonEncoder.Encode(logResponse{Code: 500, Body: "set " + logType + " status failed. err:" + err.Error()})
vlog.Warningln("set "+logType+" status failed. err:", err.Error())
}
}
type MetaInfo struct {
agent *Agent
}
func (m *MetaInfo) SetAgent(agent *Agent) {
m.agent = agent
}
func (m *MetaInfo) ServeHTTP(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/meta/update":
if r.Form == nil {
r.ParseMultipartForm(32 << 20)
}
for k, v := range r.Form {
if len(v) > 0 {
meta.PutDynamicMeta(k, v[0])
}
}
JSONSuccess(w, "ok")
case "/meta/delete":
meta.RemoveDynamicMeta(r.FormValue("key"))
JSONSuccess(w, "ok")
case "/meta/get":
JSONSuccess(w, map[string]string{r.FormValue("key"): meta.GetDynamicMeta()[r.FormValue("key")]})
case "/meta/getAll":
JSONSuccess(w, map[string]map[string]string{"meta": meta.GetDynamicMeta()})
}
}
type HotReload struct {
agent *Agent
}
func (h *HotReload) SetAgent(agent *Agent) {
h.agent = agent
}
func (h *HotReload) ServeHTTP(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/reload/clusters":
ctx := &motan.Context{ConfigFile: h.agent.ConfigFile}
ctx.Initialize()
h.agent.reloadClusters(ctx)
refersURLs, _ := json.Marshal(ctx.RefersURLs)
jsonEncoder := json.NewEncoder(w)
_ = jsonEncoder.Encode(logResponse{
Code: 200,
Body: string(refersURLs),
})
}
}
type RuntimeHandler struct {
agent *Agent
}
func (h *RuntimeHandler) SetAgent(agent *Agent) {
h.agent = agent
}
func (h *RuntimeHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/runtime/info":
result := map[string]interface{}{
"result": "ok",
motan.RuntimeInstanceTypeKey: "motan-agent",
}
// cluster info
result[motan.RuntimeClustersKey] = h.getClusterInfo()
// http cluster info
result[motan.RuntimeHttpClustersKey] = h.getHttpClusterInfo()
// exporter info
result[motan.RuntimeExportersKey] = h.getExporterInfo()
// extensionFactory info
result[motan.RuntimeExtensionFactoryKey] = GetDefaultExtFactory().GetRuntimeInfo()
// servers info
result[motan.RuntimeServersKey] = h.getServersInfo()
// basic info
result[motan.RuntimeBasicKey] = h.getBasicInfo()
res, _ := json.Marshal(result)
w.Write(res)
}
}
func (h *RuntimeHandler) getClusterInfo() map[string]interface{} {
info := make(map[string]interface{}, h.agent.clusterMap.Len())
h.agent.clusterMap.Range(func(k, v interface{}) bool {
cls, ok := v.(*cluster.MotanCluster)
if !ok {
return true
}
info[k.(string)] = cls.GetRuntimeInfo()
return true
})
return info
}
func (h *RuntimeHandler) getHttpClusterInfo() map[string]interface{} {
info := make(map[string]interface{}, h.agent.httpClusterMap.Len())
h.agent.httpClusterMap.Range(func(k, v interface{}) bool {
cls, ok := v.(*cluster.HTTPCluster)
if !ok {
return true
}
h.addInfos(cls.GetRuntimeInfo(), k.(string), info)
return true
})
return info
}
func (h *RuntimeHandler) getExporterInfo() map[string]interface{} {
info := make(map[string]interface{}, h.agent.serviceExporters.Len())
h.agent.serviceExporters.Range(func(k, v interface{}) bool {
exporter, ok := v.(*mserver.DefaultExporter)
if !ok {
return true
}
h.addInfos(exporter.GetRuntimeInfo(), k.(string), info)
return true
})
return info
}
func (h *RuntimeHandler) getServersInfo() map[string]interface{} {
info := map[string]interface{}{}
h.addInfos(h.agent.agentServer.GetRuntimeInfo(), motan.RuntimeAgentServerKey, info)
agentPortServerInfo := map[string]interface{}{}
for port, server := range h.agent.agentPortServer {
agentPortServerInfo[strconv.Itoa(port)] = server.GetRuntimeInfo()
}
h.addInfos(agentPortServerInfo, motan.RuntimeAgentPortServerKey, info)
h.addInfos(h.agent.httpProxyServer.GetRuntimeInfo(), motan.RuntimeHttpProxyServerKey, info)
return info
}
func (h *RuntimeHandler) getBasicInfo() map[string]interface{} {
info := map[string]interface{}{}
info[motan.RuntimeCpuPercentKey] = GetCpuPercent()
info[motan.RuntimeRssMemoryKey] = GetRssMemory()
return info
}
func (h *RuntimeHandler) addInfos(info map[string]interface{}, key string, result map[string]interface{}) {
if info != nil && len(info) > 0 {
result[key] = info
}
}
// JSONSuccess return success JSON data
func JSONSuccess(w http.ResponseWriter, data interface{}) {
JSON(w, "", "ok", data)
}
// JSONError return Error JSON data
func JSONError(w http.ResponseWriter, msg string) {
JSON(w, msg, "fail", nil)
}
func JSON(w http.ResponseWriter, errMsg string, result string, data interface{}) {
if errMsg != "" {
d := struct {
Result string `json:"result"`
Error string `json:"error"`
}{
Result: result,
Error: errMsg,
}
bs, _ := json.Marshal(d)
w.Write(bs)
} else {
d := struct {
Result string `json:"result"`
Data interface{} `json:"data"`
}{
Result: result,
Data: data,
}
bs, _ := json.Marshal(d)
w.Write(bs)
}
}
//------------ below code is copied from net/http/pprof -------------
// Cmdline responds with the running program's
// command line, with arguments separated by NUL bytes.
// The package initialization registers it as /debug/pprof/cmdline.
func Cmdline(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprintf(w, strings.Join(os.Args, "\x00"))
}
func sleep(w http.ResponseWriter, d time.Duration) {
var clientGone <-chan bool
if cn, ok := w.(http.CloseNotifier); ok {
clientGone = cn.CloseNotify()
}
timer := time.NewTimer(d)
defer timer.Stop()
select {
case <-timer.C:
case <-clientGone:
}
}
// Profile responds with the pprof-formatted cpu profile.
// The package initialization registers it as /debug/pprof/profile.
func Profile(w http.ResponseWriter, r *http.Request) {
sec, _ := strconv.ParseInt(r.FormValue("seconds"), 10, 64)
if sec == 0 {
sec = 30
}
// Set Content Type assuming StartCPUProfile will work,
// because if it does it starts writing.
w.Header().Set("Content-Type", "application/octet-stream")
if err := pprof.StartCPUProfile(w); err != nil {
// StartCPUProfile failed, so no writes yet.
// Can change header back to text content
// and send error code.
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(w, "Could not enable CPU profiling: %s\n", err)
return
}
sleep(w, time.Duration(sec)*time.Second)
pprof.StopCPUProfile()
}
// Trace responds with the execution trace in binary form.
// Tracing lasts for duration specified in seconds GET parameter, or for 1 second if not specified.
// The package initialization registers it as /debug/pprof/trace.
func Trace(w http.ResponseWriter, r *http.Request) {
sec, err := strconv.ParseFloat(r.FormValue("seconds"), 64)
if sec <= 0 || err != nil {
sec = 1
}
// Set Content Type assuming trace.Start will work,
// because if it does it starts writing.
w.Header().Set("Content-Type", "application/octet-stream")
if err := trace.Start(w); err != nil {
// trace.Start failed, so no writes yet.
// Can change header back to text content and send error code.