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gmclapi/master/main.go
2021-06-14 15:35:53 +08:00

245 lines
6.4 KiB
Go

/*
Copyright Ghink Network Studio
Website: https://www.ghink.net
*/
package main
import (
"net/http"
"log"
"strings"
"time"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"io"
"crypto/sha256"
"encoding/hex"
"path"
)
var WorkPath,DataPath string
var NodeList,Database,Dataread []map[string]string
var Loger *log.Logger
var ch chan bool
func responseICON(w http.ResponseWriter,r *http.Request) {
w.Header().Set("Location","https://resource.ghink.net/public/img/logo/ghink.png")
w.WriteHeader(301)
}
func responseError(w http.ResponseWriter,r *http.Request,httpCode int,info string,errorCode int) {
w.Header().Set("Content-Type","application/json")
w.WriteHeader(httpCode)
type returnError struct{
HttpCode int `json:"httpCode"`
Info string `json:"info"`
ErrorCode int `json:"errorCode"`
}
returnInfo:=returnError{httpCode,info,errorCode}
b,_:=json.Marshal(returnInfo)
w.Write(b)
}
func responseWiKi(w http.ResponseWriter,r *http.Request) {
w.Header().Set("Content-Type","application/json")
w.WriteHeader(200)
type returnWiki struct{
HttpCode int `json:"httpCode"`
Wiki string `json:"wiki"`
}
returnInfo:=returnWiki{200,"https://gitee.com/ghink/gmclapi/wikis"}
b,_:=json.Marshal(returnInfo)
w.Write(b)
}
func responseOfficial(w http.ResponseWriter,r *http.Request,value []string) {
paths:=""
for _,arg := range value{
paths=paths+"/"+arg
}
if paths=="" || paths=="/"{
responseError(w,r,400,"Please offer more params",10005)
}else{
switcher:=true
for _,arg := range Database{
if arg["path"]==paths{
address:=determineNode(arg["hash"],path.Base(arg["path"]))
w.Header().Set("Location",address)
w.WriteHeader(302)
switcher=false
break
}
}
if switcher==true{
responseError(w,r,404,"Cannot find file",10003)
}
}
}
func responseFile(w http.ResponseWriter,r *http.Request,value []string) {
fileName:=value[0]
path:=DataPath
for _,arg := range value[1:]{
path=path+"/"+arg
}
if path==DataPath{
responseError(w,r,403,"Directory listing is not allowed",10002)
}else{
b,err:=ioutil.ReadFile(path)
if err != nil {
if find := strings.Contains(err.Error(),"The system cannot find"); find{
responseError(w,r,404,"Cannot find file",10003)
}else if s,_:=os.Stat(path); s.IsDir(){
responseError(w,r,403,"Directory listing is not allowed",10002)
}else{
responseError(w,r,500,"The file exists but cannot be read",10004)
logIn("[Page Thread]","Read the file ",path," failed in data dir! Error info: ",err.Error())
}
}else{
w.Header().Set("Content-Disposition","attachment;filename="+fileName)
w.Header().Set("Content-Type","application/octet-stream")
w.Write(b)
}
}
}
func pageService(w http.ResponseWriter,r *http.Request) {
ts := time.Now().Unix()
logIn("[Page Thread]","Got requests from ",r.RemoteAddr,", address is ",r.URL.RequestURI())
w.Header().Set("Server","GMCLAPI (Alpha 1.0.0)")
w.Header().Set("Engine","Panda (Alpha 1.0.0)")
w.Header().Set("Stamp",fmt.Sprint(ts))
addr:=r.URL.RequestURI()
value:=strings.Split(addr,"/")
pathType:=value[1]
value=value[2:]
if addr=="/"{
responseWiKi(w,r)
}else{
switch pathType {
case "favicon.ico":
responseICON(w,r)
case "file":
responseFile(w,r,value)
case "official":
responseOfficial(w,r,value)
/*
case "bmclapi":
responseBMCLAPI(w,r,value)
case "default":
responseDefault(w,r,value)
case "gmclapi":
responseDefault(w,r,value)
*/
default:
responseError(w,r,405,"Unspported choice for requests loading",10001)
}
}
}
func databaseService() {
for {
defer recover()
file,err:=os.OpenFile(WorkPath+"/database.db",os.O_RDONLY,0600)
defer file.Close()
if err != nil {
panic(err)
}
bytes,err:=ioutil.ReadAll(file)
if err != nil {
panic(err)
}
err=json.Unmarshal(bytes,&Database)
if err != nil {
panic(err)
}
time.Sleep(time.Duration(10)*time.Second)
}
}
func nodeService() {
}
func determineNode(hash string,fileName string) string {
return "http://127.0.0.1:8000/file/"+fileName+"/"+hash
}
func syncService() {
for {
}
}
func hashFile(path string) string {
file,err:=os.Open(path)
defer file.Close()
if err != nil {
logIn("[Hash Thread]","Failed to calc hash of the file ",path,"! Error info: ",err.Error())
}
hash:=sha256.New()
if _,err := io.Copy(hash,file); err != nil {
logIn("[Hash Thread]","Failed to calc hash of the file ",path,"! Error info: ",err.Error())
}
sum:=hash.Sum(nil)
return hex.EncodeToString(sum)
}
func logIn(text ...string) {
result:=""
for _,arg := range text {
result+=arg
}
log.Print(result)
Loger.Print(result)
}
func init() {
WorkPath="gmclapi/"
DataPath=WorkPath+"data/"
err:=os.MkdirAll(WorkPath, os.ModePerm)
if err != nil {
panic(err)
}
err=os.MkdirAll(DataPath, os.ModePerm)
if err != nil {
panic(err)
}
if _,err:=os.Stat(WorkPath+"database.db"); os.IsNotExist(err){
database,err:=os.OpenFile(WorkPath+"database.db", os.O_WRONLY|os.O_CREATE, 0666)
database.Write([]byte("[]"))
if err != nil {
panic(err)
}
defer database.Close()
}
file,err:=os.OpenFile(WorkPath+"/database.db", os.O_RDONLY,0600)
defer file.Close()
if err != nil {
panic(err)
}
bytes,err:=ioutil.ReadAll(file)
if err != nil {
panic(err)
}
err=json.Unmarshal(bytes,&Database)
if err != nil {
panic(err)
}
}
func main() {
logFile,err:=os.OpenFile(WorkPath+"logs.log", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
panic(err)
}
defer logFile.Close()
Loger=log.New(logFile,"",log.LstdFlags|log.Lshortfile)
http.HandleFunc("/", pageService)
go http.ListenAndServe("127.0.0.1:8000", nil)
go syncService()
go databaseService()
/*
go nodeService()
go consoleService()
*/
for {
}
}
/*
10001 Unspported choice for requests loading
10002 Directory listing is not allowed
10003 Cannot find file
10004 The file exists but cannot be read
10005 Please offer more params
*/