/
func.go
executable file
·372 lines (342 loc) · 9.69 KB
/
func.go
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package lib
import (
"bytes"
"crypto/md5"
"encoding/binary"
"encoding/hex"
"flag"
"fmt"
"io/ioutil"
"log"
"math/rand"
"net"
"net/http"
"net/url"
"os"
"strings"
"time"
)
var TimeLocation *time.Location
var TimeFormat = "2006-01-02 15:04:05"
var DateFormat = "2006-01-02"
var LocalIP = net.ParseIP("127.0.0.1")
//公共初始化函数:支持两种方式设置配置文件
//
//函数传入配置文件 Init("./conf/dev/")
//如果配置文件为空,会从命令行中读取 -config conf/dev/
func Init(configPath string) error {
return InitModule(configPath,[]string{"base","mysql","redis"})
}
//模块初始化
func InitModule(configPath string,modules []string) error {
var conf *string
if len(configPath) > 0 {
conf = &configPath
} else {
conf = flag.String("config", "", "input config file like ./conf/dev/")
flag.Parse()
}
if *conf == "" {
flag.Usage()
os.Exit(1)
}
log.Println("------------------------------------------------------------------------")
log.Printf("[INFO] config=%s\n", *conf)
log.Printf("[INFO] %s\n", " start loading resources.")
// 设置ip信息,优先设置便于日志打印
ips := GetLocalIPs()
if len(ips) > 0 {
LocalIP = ips[0]
}
// 解析配置文件目录
if err := ParseConfPath(*conf); err != nil {
return err
}
//初始化配置文件
if err := InitViperConf(); err != nil {
return err
}
// 加载base配置
if InArrayString("base",modules){
if err := InitBaseConf(GetConfPath("base")); err != nil {
fmt.Printf("[ERROR] %s%s\n", time.Now().Format(TimeFormat), " InitBaseConf:"+err.Error())
}
}
// 加载redis配置
if InArrayString("redis",modules) {
if err := InitRedisConf(GetConfPath("redis_map")); err != nil {
fmt.Printf("[ERROR] %s%s\n", time.Now().Format(TimeFormat), " InitRedisConf:"+err.Error())
}
}
// 加载mysql配置并初始化实例
if InArrayString("mysql",modules) {
if err := InitDBPool(GetConfPath("mysql_map")); err != nil {
fmt.Printf("[ERROR] %s%s\n", time.Now().Format(TimeFormat), " InitDBPool:"+err.Error())
}
}
// 设置时区
if location, err := time.LoadLocation(ConfBase.TimeLocation); err != nil {
return err
} else {
TimeLocation = location
}
log.Printf("[INFO] %s\n", " success loading resources.")
log.Println("------------------------------------------------------------------------")
return nil
}
//公共销毁函数
func Destroy() {
log.Println("------------------------------------------------------------------------")
log.Printf("[INFO] %s\n", " start destroy resources.")
CloseDB()
dlog.Close()
log.Printf("[INFO] %s\n", " success destroy resources.")
}
func HttpGET(trace *TraceContext, urlString string, urlParams url.Values, msTimeout int, header http.Header) (*http.Response, []byte, error) {
startTime := time.Now().UnixNano()
client := http.Client{
Timeout: time.Duration(msTimeout) * time.Millisecond,
}
urlString = AddGetDataToUrl(urlString, urlParams)
req, err := http.NewRequest("GET", urlString, nil)
if err != nil {
Log.TagWarn(trace, DLTagHTTPFailed, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "GET",
"args": urlParams,
"err": err.Error(),
})
return nil, nil, err
}
if len(header) > 0 {
req.Header = header
}
req = addTrace2Header(req, trace)
resp, err := client.Do(req)
if err != nil {
Log.TagWarn(trace, DLTagHTTPFailed, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "GET",
"args": urlParams,
"err": err.Error(),
})
return nil, nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
Log.TagWarn(trace, DLTagHTTPFailed, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "GET",
"args": urlParams,
"result": string(body),
"err": err.Error(),
})
return nil, nil, err
}
Log.TagInfo(trace, DLTagHTTPSuccess, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "GET",
"args": urlParams,
"result": string(body),
})
return resp, body, nil
}
func HttpPOST(trace *TraceContext, urlString string, urlParams url.Values, msTimeout int, header http.Header, contextType string) (*http.Response, []byte, error) {
startTime := time.Now().UnixNano()
client := http.Client{
Timeout: time.Duration(msTimeout) * time.Millisecond,
}
if contextType == "" {
contextType = "application/x-www-form-urlencoded"
}
req, err := http.NewRequest("POST", urlString, strings.NewReader(urlParams.Encode()))
if len(header) > 0 {
req.Header = header
}
req = addTrace2Header(req, trace)
req.Header.Set("Content-Type", contextType)
resp, err := client.Do(req)
if err != nil {
Log.TagWarn(trace, DLTagHTTPFailed, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "POST",
"args": urlParams,
"err": err.Error(),
})
return nil, nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
Log.TagWarn(trace, DLTagHTTPFailed, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "POST",
"args": urlParams,
"result": string(body),
"err": err.Error(),
})
return nil, nil, err
}
Log.TagInfo(trace, DLTagHTTPSuccess, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "POST",
"args": urlParams,
"result": string(body),
})
return resp, body, nil
}
func HttpJSON(trace *TraceContext, urlString string, jsonContent string, msTimeout int, header http.Header) (*http.Response, []byte, error) {
startTime := time.Now().UnixNano()
client := http.Client{
Timeout: time.Duration(msTimeout) * time.Millisecond,
}
req, err := http.NewRequest("POST", urlString, strings.NewReader(jsonContent))
if len(header) > 0 {
req.Header = header
}
req = addTrace2Header(req, trace)
req.Header.Set("Content-Type", "application/json")
resp, err := client.Do(req)
if err != nil {
Log.TagWarn(trace, DLTagHTTPFailed, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "POST",
"args": jsonContent,
"err": err.Error(),
})
return nil, nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
Log.TagWarn(trace, DLTagHTTPFailed, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "POST",
"args": jsonContent,
"result": string(body),
"err": err.Error(),
})
return nil, nil, err
}
Log.TagInfo(trace, DLTagHTTPSuccess, map[string]interface{}{
"url": urlString,
"proc_time": float32(time.Now().UnixNano()-startTime) / 1.0e9,
"method": "POST",
"args": jsonContent,
"result": string(body),
})
return resp, body, nil
}
func AddGetDataToUrl(urlString string, data url.Values) string {
if strings.Contains(urlString, "?") {
urlString = urlString + "&"
} else {
urlString = urlString + "?"
}
return fmt.Sprintf("%s%s", urlString, data.Encode())
}
func addTrace2Header(request *http.Request, trace *TraceContext) *http.Request {
traceId := trace.TraceId
cSpanId := NewSpanId()
if traceId != "" {
request.Header.Set("header-rid", traceId)
}
if cSpanId != "" {
request.Header.Set("header-spanid", cSpanId)
}
trace.CSpanId = cSpanId
return request
}
func GetMd5Hash(text string) string {
hasher := md5.New()
hasher.Write([]byte(text))
return hex.EncodeToString(hasher.Sum(nil))
}
func Encode(data string) (string, error) {
h := md5.New()
_, err := h.Write([]byte(data))
if err != nil {
return "", err
}
return hex.EncodeToString(h.Sum(nil)), nil
}
func ParseServerAddr(serverAddr string) (host, port string) {
serverInfo := strings.Split(serverAddr, ":")
if len(serverInfo) == 2 {
host = serverInfo[0]
port = serverInfo[1]
} else {
host = serverAddr
port = ""
}
return host, port
}
func NewTrace() *TraceContext {
trace := &TraceContext{}
trace.TraceId = GetTraceId()
trace.SpanId = NewSpanId()
return trace
}
func NewSpanId() string {
timestamp := uint32(time.Now().Unix())
ipToLong := binary.BigEndian.Uint32(LocalIP.To4())
b := bytes.Buffer{}
b.WriteString(fmt.Sprintf("%08x", ipToLong^timestamp))
b.WriteString(fmt.Sprintf("%08x", rand.Int31()))
return b.String()
}
func GetTraceId() (traceId string) {
return calcTraceId(LocalIP.String())
}
func calcTraceId(ip string) (traceId string) {
now := time.Now()
timestamp := uint32(now.Unix())
timeNano := now.UnixNano()
pid := os.Getpid()
b := bytes.Buffer{}
netIP := net.ParseIP(ip)
if netIP == nil {
b.WriteString("00000000")
} else {
b.WriteString(hex.EncodeToString(netIP.To4()))
}
b.WriteString(fmt.Sprintf("%08x", timestamp&0xffffffff))
b.WriteString(fmt.Sprintf("%04x", timeNano&0xffff))
b.WriteString(fmt.Sprintf("%04x", pid&0xffff))
b.WriteString(fmt.Sprintf("%06x", rand.Int31n(1<<24)))
b.WriteString("b0") // 末两位标记来源,b0为go
return b.String()
}
func GetLocalIPs() (ips []net.IP) {
interfaceAddr, err := net.InterfaceAddrs()
if err != nil {
return nil
}
for _, address := range interfaceAddr {
ipNet, isValidIpNet := address.(*net.IPNet)
if isValidIpNet && !ipNet.IP.IsLoopback() {
if ipNet.IP.To4() != nil {
ips = append(ips, ipNet.IP)
}
}
}
return ips
}
func InArrayString(s string,arr []string) bool{
for _,i:=range arr{
if i==s{
return true
}
}
return false
}