/
loggerhandler.go
472 lines (423 loc) · 11.1 KB
/
loggerhandler.go
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package eudore
import (
"bytes"
"context"
"fmt"
"os"
"path"
"path/filepath"
"reflect"
"sort"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
)
type loggerHandlerInit struct {
sync.Mutex
Entrys []LoggerEntry
}
func (h *loggerHandlerInit) HandlerPriority() int {
return 100
}
func (h *loggerHandlerInit) HandlerEntry(entry *LoggerEntry) {
entry.Time = time.Now()
h.Lock()
h.Entrys = append(h.Entrys, *entry)
h.Unlock()
}
// Unmount 方法获取ContextKeyLogger.(Logger)接受Init存储的日志。
func (h *loggerHandlerInit) Unmount(ctx context.Context) {
h.Lock()
defer h.Unlock()
logger, _ := ctx.Value(ContextKeyLogger).(Logger)
if logger == nil {
logger = NewLogger(nil)
}
logger = logger.WithField("depth", "disable").WithField("logger", true)
for _, data := range h.Entrys {
entry := logger.WithField("time", data.Time).WithFields(data.Keys, data.Vals)
switch data.Level {
case LoggerDebug:
entry.Debug(data.Message)
case LoggerInfo:
entry.Info(data.Message)
case LoggerWarning:
entry.Warning(data.Message)
case LoggerError:
entry.Error(data.Message)
case LoggerFatal:
entry.Fatal(data.Message)
}
}
h.Entrys = nil
}
type loggerHookMeta struct {
Size uint64
Count [5]uint64
}
// NewLoggerHookMeta 函数创建日志Meta处理,记录日志数量和写入量。
func NewLoggerHookMeta() LoggerHandler {
return &loggerHookMeta{}
}
func (h *loggerHookMeta) Metadata() any {
return MetadataLogger{
Health: true,
Name: "eudore.loggerStd",
Count: h.Count,
Size: h.Size,
SizeFormat: formatSize(int64(h.Size)),
}
}
func (h *loggerHookMeta) HandlerPriority() int { return 60 }
func (h *loggerHookMeta) HandlerEntry(entry *LoggerEntry) {
atomic.AddUint64(&h.Size, uint64(len(entry.Buffer)))
atomic.AddUint64(&h.Count[entry.Level], 1)
}
type loggerHookFilter struct {
Rules [][]string
Funcs [][]loggerHookFilterFunc
}
type loggerHookFilterFunc struct {
Key string
FuncRunner
}
// NewLoggerHookFilter 函数创建日志过滤处理器。
//
// 在Mount时如果规则初始化失败,查看FuncCreator的Metadata。
func NewLoggerHookFilter(rules [][]string) LoggerHandler {
for i := range rules {
rules[i] = sliceFilter(rules[i], func(t string) bool {
return len(strings.SplitN(t, " ", 3)) == 3
})
}
return &loggerHookFilter{
Rules: rules,
Funcs: make([][]loggerHookFilterFunc, 0, len(rules)),
}
}
// Mount 方法使LoggerStd挂载上下文,上下文传递给LoggerStdData。
func (h *loggerHookFilter) Mount(ctx context.Context) {
fc := NewFuncCreatorWithContext(ctx)
for i := range h.Rules {
funcs := make([]loggerHookFilterFunc, 0, len(h.Rules[i]))
for j := range h.Rules[i] {
strs := strings.SplitN(h.Rules[i][j], " ", 3)
kind := NewFuncCreateKind(strs[1])
fn, err := fc.CreateFunc(kind, strs[2])
if err != nil {
continue
}
funcs = append(funcs, loggerHookFilterFunc{strs[0], FuncRunner{kind, fn}})
}
if len(funcs) > 0 {
h.Funcs = append(h.Funcs, funcs)
}
}
}
func (h *loggerHookFilter) HandlerPriority() int { return 10 }
func (h *loggerHookFilter) HandlerEntry(entry *LoggerEntry) {
for i := range h.Funcs {
h.HandlerRule(entry, h.Funcs[i])
if entry.Level == LoggerDiscard {
return
}
}
}
func (h *loggerHookFilter) HandlerRule(entry *LoggerEntry, funcs []loggerHookFilterFunc) {
for i := range funcs {
pos := sliceIndex(entry.Keys, funcs[i].Key)
if pos == -1 {
return
}
kind := NewFuncCreateKindWithType(reflect.TypeOf(entry.Vals[pos]))
if kind != funcs[i].Kind && kind+FuncCreateNumber != funcs[i].Kind {
return
}
if funcs[i].Kind > FuncCreateAny {
entry.Vals[pos] = funcRunAny(funcs[i].Kind, funcs[i].Func, entry.Vals[pos])
} else if !funcs[i].RunPtr(reflect.ValueOf(entry.Vals[pos])) {
return
}
}
if len(entry.Keys) > 0 && funcs[len(funcs)-1].Kind < FuncCreateSetString {
entry.Level = LoggerDiscard
}
}
func funcRunAny(kind FuncCreateKind, fn, i any) any {
v := reflect.Indirect(reflect.ValueOf(i))
switch v.Kind() {
case reflect.Slice, reflect.Array:
r := FuncRunner{kind, fn}
for i := 0; i < v.Len(); i++ {
r.Run(v.Index(i))
}
return i
}
switch kind {
case FuncCreateSetString:
return fn.(func(string) string)(v.String())
case FuncCreateSetInt:
return fn.(func(int) int)(int(v.Int()))
case FuncCreateSetUint:
return fn.(func(uint) uint)(uint(v.Uint()))
case FuncCreateSetFloat:
return fn.(func(float64) float64)(v.Float())
case FuncCreateSetBool:
return fn.(func(bool) bool)(v.Bool())
default:
return fn.(func(any) any)(i)
}
}
type loggerHookFatal struct {
Callback func(*LoggerEntry)
}
// NewLoggerHookFatal 函数创建Fatal级别日志处理Hook。
func NewLoggerHookFatal(fn func(*LoggerEntry)) LoggerHandler {
return &loggerHookFatal{fn}
}
func (h *loggerHookFatal) Mount(ctx context.Context) {
if h.Callback == nil {
app, ok := ctx.Value(ContextKeyApp).(*App)
if ok {
h.Callback = func(entry *LoggerEntry) {
app.SetValue(ContextKeyError, fmt.Errorf(entry.Message))
}
}
}
}
func (h *loggerHookFatal) HandlerPriority() int { return 101 }
func (h *loggerHookFatal) HandlerEntry(entry *LoggerEntry) {
if entry.Level == LoggerFatal {
if h.Callback == nil {
panic(entry.Message)
}
h.Callback(entry)
}
}
type loggerWriterStdout struct {
sync.Mutex
}
type loggerWriterStdoutColor struct {
sync.Mutex
}
func NewLoggerWriterStdout(color bool) LoggerHandler {
if color {
return &loggerWriterStdoutColor{}
}
return &loggerWriterStdout{}
}
func (h *loggerWriterStdout) HandlerPriority() int {
return 90
}
func (h *loggerWriterStdout) HandlerEntry(entry *LoggerEntry) {
h.Lock()
_, _ = os.Stdout.Write(entry.Buffer)
h.Unlock()
}
func (h *loggerWriterStdoutColor) HandlerPriority() int {
return 90
}
func (h *loggerWriterStdoutColor) HandlerEntry(entry *LoggerEntry) {
pos := bytes.Index(entry.Buffer[:64], loggerLevelDefaultBytes[entry.Level])
h.Lock()
if pos != -1 {
_, _ = os.Stdout.Write(entry.Buffer[:pos])
_, _ = os.Stdout.Write(loggerLevelColorBytes[entry.Level])
_, _ = os.Stdout.Write(entry.Buffer[pos+loggerLevelDefaultLen[entry.Level]:])
} else {
os.Stdout.Write(entry.Buffer)
}
h.Unlock()
}
type loggerWriterFile struct {
sync.Mutex
File *os.File
}
// NewLoggerWriterFile 函数创建一个文件输出的日志写入流。
func NewLoggerWriterFile(name string) (LoggerHandler, error) {
err := os.MkdirAll(filepath.Dir(name), 0o755)
if err != nil {
return nil, err
}
file, err := os.OpenFile(name, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644)
if err != nil {
return nil, err
}
return &loggerWriterFile{File: file}, nil
}
func (h *loggerWriterFile) HandlerPriority() int {
return 100
}
func (h *loggerWriterFile) HandlerEntry(entry *LoggerEntry) {
h.Lock()
_, _ = h.File.Write(entry.Buffer)
h.Unlock()
}
type loggerWriterRotate struct {
loggerWriterFile
name string
pattern string
writeSize uint64
maxSize uint64
nextIndex int
nextTime time.Time
openhooks []func(string, string)
}
// max uint64, 9999-12-31 23:59:59 +0000 UTC.
const roatteMaxSize, roatteMaxTime = 0xffffffffffffffff, 253402300799
// NewLoggerWriterRotate 函数创建一个支持文件切割的的日志写入流。
//
// 如果设置maxsize或name包含字符串yyyy/yy/mm/dd/hh,将可以滚动日志文件。
func NewLoggerWriterRotate(name string, maxsize uint64, fn ...func(string, string)) (LoggerHandler, error) {
if maxsize == 0 && getNextTime(name).Unix() == roatteMaxTime {
return NewLoggerWriterFile(name)
}
if maxsize == 0 {
maxsize = roatteMaxSize
}
h := &loggerWriterRotate{
name: name,
maxSize: maxsize,
nextIndex: getNextIndex(name, maxsize),
nextTime: getNextTime(name),
openhooks: fn,
}
h.pattern = h.getFilePattern()
return h, h.rotateFile()
}
func (h *loggerWriterRotate) HandlerEntry(entry *LoggerEntry) {
h.Lock()
defer h.Unlock()
if h.writeSize+uint64(len(entry.Buffer)) >= h.maxSize {
h.rotateFile()
} else if entry.Time.After(h.nextTime) {
h.nextIndex = getNextIndex(h.name, h.maxSize)
h.nextTime = getNextTime(h.name)
h.rotateFile()
}
n, _ := h.File.Write(entry.Buffer)
h.writeSize += uint64(n)
}
func (h *loggerWriterRotate) rotateFile() error {
for {
name := h.getRotateName()
_ = os.MkdirAll(filepath.Dir(name), 0o755)
file, err := os.OpenFile(name, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644)
if err != nil {
return err
}
h.nextIndex++
stat, _ := file.Stat()
h.writeSize = uint64(stat.Size())
if h.writeSize < h.maxSize {
h.File.Sync()
h.File.Close()
h.File = file
for _, fn := range h.openhooks {
fn(name, h.pattern)
}
return nil
}
file.Close()
}
}
func (h *loggerWriterRotate) getRotateName() string {
name := h.name
if h.nextTime.Unix() != roatteMaxTime {
name = fileFormatTime(name)
}
if h.maxSize != roatteMaxSize {
ext := path.Ext(h.name)
name = name[:len(name)-len(ext)] + "-" + strconv.Itoa(h.nextIndex) + ext
}
return name
}
func (h *loggerWriterRotate) getFilePattern() string {
name := h.name
if h.nextTime.Unix() != roatteMaxTime {
k := DefaultLoggerWriterRotateDataKeys
v := [...]int{2, 2, 2, 4}
for i := range k {
name = strings.ReplaceAll(name, k[i], strings.Repeat("[0-9]", v[i]))
}
}
if h.maxSize != roatteMaxSize {
ext := path.Ext(name)
name = name[:len(name)-len(ext)] + "-*" + ext
}
return name
}
func fileFormatTime(n string) string {
now := time.Now()
k := DefaultLoggerWriterRotateDataKeys
v := [...]string{"15", "02", "01", "2006"}
for i := range k {
n = strings.ReplaceAll(n, k[i], now.Format(v[i]))
}
return n
}
func getNextIndex(name string, size uint64) int {
index := 0
if size != roatteMaxSize {
ext := path.Ext(name)
name := fileFormatTime(name[:len(name)-len(ext)] + "-")
list, _ := filepath.Glob(name + "*" + ext)
for i := range list {
n, _ := strconv.Atoi(list[i][len(name) : len(list[i])-len(ext)])
if n > index {
index = n
}
}
}
return index
}
func getNextTime(name string) time.Time {
for i, str := range DefaultLoggerWriterRotateDataKeys {
if strings.Contains(name, str) {
now := time.Now()
datas := [...]int{now.Hour(), now.Day(), int(now.Month()), now.Year()}
datas[i]++
return time.Date(datas[3], time.Month(datas[2]), datas[1], datas[0], 0, 0, 0, now.Location())
}
}
return time.Unix(roatteMaxTime, 0)
}
func hookFileLink(link string) func(string, string) {
os.MkdirAll(filepath.Dir(link), 0o755)
return func(name, _ string) {
if !filepath.IsAbs(name) {
pwd, _ := os.Getwd()
name = filepath.Join(pwd, name)
}
os.Remove(link)
os.Symlink(name, link)
}
}
func hookFileRecycle(age, count int) func(string, string) {
type fileTime struct {
Name string
ModTime time.Time
}
return func(_, pattern string) {
list, _ := filepath.Glob(pattern)
files := make([]fileTime, 0, len(list))
for i := range list {
stat, _ := os.Stat(list[i])
files = append(files, fileTime{list[i], stat.ModTime()})
}
sort.Slice(files, func(i, j int) bool {
return files[i].ModTime.Before(files[j].ModTime)
})
if count < len(files) {
files = files[:len(files)-count]
expr := time.Now().Add(time.Hour * time.Duration(-age))
for i := range files {
if files[i].ModTime.Before(expr) {
os.Remove(files[i].Name)
}
}
}
}
}