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This commit is contained in:
Timo Ley 2020-09-06 00:08:01 +02:00
commit df4b25de98
7 changed files with 216 additions and 0 deletions
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2
.gitignore vendored Normal file
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config.yaml
.idea

10
go.mod Normal file
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module mavenserver
go 1.15
require (
github.com/go-sql-driver/mysql v1.5.0
github.com/gorilla/mux v1.8.0
github.com/jmoiron/sqlx v1.2.0
gopkg.in/yaml.v2 v2.3.0
)

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go.sum Normal file
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github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs=
github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
github.com/jmoiron/sqlx v1.2.0 h1:41Ip0zITnmWNR/vHV+S4m+VoUivnWY5E4OJfLZjCJMA=
github.com/jmoiron/sqlx v1.2.0/go.mod h1:1FEQNm3xlJgrMD+FBdI9+xvCksHtbpVBBw5dYhBSsks=
github.com/lib/pq v1.0.0 h1:X5PMW56eZitiTeO7tKzZxFCSpbFZJtkMMooicw2us9A=
github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/mattn/go-sqlite3 v1.9.0 h1:pDRiWfl+++eC2FEFRy6jXmQlvp4Yh3z1MJKg4UeYM/4=
github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

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main.go Normal file
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package main
import (
"gopkg.in/yaml.v2"
"mavenserver/maven"
"os"
)
func main() {
var auth maven.AuthManager
config := readconf("config.yaml")
auth = maven.Create(config.Database)
maven.StartServer(config.Server, &auth)
}
func readconf(loc string) maven.Configuration {
if _, err := os.Stat(loc); os.IsNotExist(err) {
conf := `
server:
port: 8080
mavenpath: "maven"
basepath: "/maven"
database:
host: "localhost"
database: "mavenusers"
username: "root"
password: "password"`
file, err := os.Create(loc)
if err != nil {
panic(err)
}
defer file.Close()
_, err = file.WriteString(conf)
if err != nil {
panic(err)
}
}
file, err := os.Open(loc)
if err != nil {
panic(err)
}
defer file.Close()
var conf maven.Configuration
dec := yaml.NewDecoder(file)
err = dec.Decode(&conf)
if err != nil {
panic(err)
}
return conf
}

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maven/config.go Normal file
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package maven
type ServerConf struct {
Port int `yaml:"port"`
MavenPath string `yaml:"mavenpath"`
BasePath string `yaml:"basepath"`
}
type DSN struct {
Username string `yaml:"username"`
Password string `yaml:"password"`
Host string `yaml:"host"`
Port int `yaml:"port"`
Database string `yaml:"database"`
}
type Configuration struct {
Database DSN `yaml:"database"`
Server ServerConf `yaml:"server"`
}

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maven/server.go Normal file
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package maven
import (
"github.com/gorilla/mux"
"io"
"net/http"
"os"
"path"
"strconv"
)
type PutHandler struct {
rootpath string
auth *AuthManager
}
type AuthManager interface {
HasAccess(path string, username string, password string) bool
}
func StartServer(conf ServerConf, auth *AuthManager) {
handler := mux.NewRouter()
handler.PathPrefix(conf.BasePath).Methods("GET").Handler(http.StripPrefix(conf.BasePath, http.FileServer(http.Dir(conf.MavenPath))))
handler.PathPrefix(conf.BasePath).Methods("PUT").Handler(http.StripPrefix(conf.BasePath, PutHandler{rootpath: conf.MavenPath, auth: auth}))
err := http.ListenAndServe("0.0.0.0:"+strconv.Itoa(conf.Port), handler)
if err != nil {
panic(err)
}
}
func (h PutHandler) ServeHTTP(res http.ResponseWriter, req *http.Request) {
filepath := h.rootpath + req.URL.Path
auth := *h.auth
username, password, _ := req.BasicAuth()
if auth.HasAccess(req.URL.Path, username, password) {
err := os.MkdirAll(path.Dir(filepath), 0777)
if err != nil {
http.Error(res, err.Error(), http.StatusInternalServerError)
}
f, err := os.OpenFile(filepath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
defer f.Close()
if err != nil {
http.Error(res, err.Error(), http.StatusInternalServerError)
}
_, err = io.Copy(f, req.Body)
if err != nil {
http.Error(res, err.Error(), http.StatusInternalServerError)
}
} else {
http.Error(res, "No Permission", http.StatusForbidden)
}
}

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maven/sql.go Normal file
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package maven
import (
"crypto/md5"
"encoding/hex"
_ "github.com/go-sql-driver/mysql"
"github.com/jmoiron/sqlx"
"strconv"
"time"
)
func Create(con DSN) Database {
connec, err := sqlx.Open("mysql", con.Format())
if err != nil {
panic(err)
}
connec.SetConnMaxLifetime(time.Minute * 3)
connec.SetMaxOpenConns(10)
return Database{db: connec}
}
func (d DSN) Format() string {
fm := ""
if d.Username != "" {
fm += d.Username
if d.Password != "" {
fm += ":"
fm += d.Password
}
fm += "@"
}
if d.Host != "" {
fm += "("
fm += d.Host
if d.Port != 0 {
fm += ":"
fm += strconv.Itoa(d.Port)
}
fm += ")"
}
fm += "/"
fm += d.Database
return fm
}
type Database struct {
db *sqlx.DB
}
type User struct {
Password string `DB:"password"`
}
func (d Database) HasAccess(path string, username string, password string) bool {
row := d.db.QueryRowx("SELECT password FROM users WHERE username=?", username)
user := User{}
err := row.StructScan(&user)
if err != nil {
return false
}
return user.Password == Hash(password)
}
func Hash(input string) string {
hash := md5.Sum([]byte(input))
return hex.EncodeToString(hash[:])
}