Implement authorization support
This commit is contained in:
parent
eba86c07e9
commit
81fc11ee5d
|
@ -23,10 +23,13 @@ import (
|
|||
"log"
|
||||
"net/http"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/gorilla/mux"
|
||||
mstorage "github.com/minio-io/minio/pkg/storage"
|
||||
"github.com/minio-io/minio/pkg/utils/config"
|
||||
"github.com/minio-io/minio/pkg/utils/crypto/signers"
|
||||
)
|
||||
|
||||
type contentType int
|
||||
|
@ -44,6 +47,11 @@ type minioApi struct {
|
|||
storage mstorage.Storage
|
||||
}
|
||||
|
||||
type vHandler struct {
|
||||
conf config.Config
|
||||
handler http.Handler
|
||||
}
|
||||
|
||||
// No encoder interface exists, so we create one.
|
||||
type encoder interface {
|
||||
Encode(v interface{}) error
|
||||
|
@ -54,6 +62,11 @@ func HttpHandler(storage mstorage.Storage) http.Handler {
|
|||
var api = minioApi{}
|
||||
api.storage = storage
|
||||
|
||||
var conf = config.Config{}
|
||||
if err := conf.SetupConfig(); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
// Re-direct /path to /path/
|
||||
mux.StrictSlash(true)
|
||||
mux.HandleFunc("/", api.listBucketsHandler).Methods("GET")
|
||||
|
@ -63,7 +76,50 @@ func HttpHandler(storage mstorage.Storage) http.Handler {
|
|||
mux.HandleFunc("/{bucket}/{object:.*}", api.headObjectHandler).Methods("HEAD")
|
||||
mux.HandleFunc("/{bucket}/{object:.*}", api.putObjectHandler).Methods("PUT")
|
||||
|
||||
return ignoreUnimplementedResources(mux)
|
||||
return validateHandler(conf, ignoreUnimplementedResources(mux))
|
||||
}
|
||||
|
||||
// grab AccessKey from authorization header
|
||||
func stripAccessKey(r *http.Request) string {
|
||||
fields := strings.Fields(r.Header.Get("Authorization"))
|
||||
if len(fields) < 2 {
|
||||
return ""
|
||||
}
|
||||
splits := strings.Split(fields[1], ":")
|
||||
if len(splits) < 2 {
|
||||
return ""
|
||||
}
|
||||
return splits[0]
|
||||
}
|
||||
|
||||
func validateHandler(conf config.Config, h http.Handler) http.Handler {
|
||||
return vHandler{conf, h}
|
||||
}
|
||||
|
||||
func (h vHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
||||
accessKey := stripAccessKey(r)
|
||||
if accessKey != "" {
|
||||
if err := h.conf.ReadConfig(); err != nil {
|
||||
w.WriteHeader(http.StatusInternalServerError)
|
||||
} else {
|
||||
user := h.conf.GetKey(accessKey)
|
||||
ok, err := signers.ValidateRequest(user, r)
|
||||
if ok {
|
||||
h.handler.ServeHTTP(w, r)
|
||||
} else {
|
||||
w.WriteHeader(http.StatusUnauthorized)
|
||||
w.Write([]byte(err.Error()))
|
||||
}
|
||||
}
|
||||
} else {
|
||||
//No access key found, handle this more appropriately
|
||||
//TODO: Remove this after adding tests to support signature
|
||||
//request
|
||||
h.handler.ServeHTTP(w, r)
|
||||
//Add this line, to reply back for invalid requests
|
||||
//w.WriteHeader(http.StatusUnauthorized)
|
||||
//w.Write([]byte("Authorization header malformed")
|
||||
}
|
||||
}
|
||||
|
||||
func ignoreUnimplementedResources(h http.Handler) http.Handler {
|
||||
|
|
|
@ -55,6 +55,14 @@ func (c *Config) IsUserExists(username string) bool {
|
|||
return false
|
||||
}
|
||||
|
||||
func (c *Config) GetKey(accessKey string) User {
|
||||
value, ok := c.Users[accessKey]
|
||||
if !ok {
|
||||
return User{}
|
||||
}
|
||||
return value
|
||||
}
|
||||
|
||||
func (c *Config) GetUser(username string) User {
|
||||
for _, user := range c.Users {
|
||||
if user.Name == username {
|
||||
|
|
|
@ -8,3 +8,21 @@ const (
|
|||
func isalnum(c byte) bool {
|
||||
return '0' <= c && c <= '9' || 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z'
|
||||
}
|
||||
|
||||
func ValidateAccessKey(key []byte) bool {
|
||||
for _, char := range key {
|
||||
if isalnum(char) {
|
||||
continue
|
||||
}
|
||||
switch char {
|
||||
case '-':
|
||||
case '.':
|
||||
case '_':
|
||||
case '~':
|
||||
continue
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
|
|
@ -1,191 +1,155 @@
|
|||
package signers
|
||||
|
||||
//import (
|
||||
// "bytes"
|
||||
// "crypto/hmac"
|
||||
// "crypto/sha1"
|
||||
// "encoding/base64"
|
||||
// "fmt"
|
||||
// "io"
|
||||
// "net/http"
|
||||
// "net/url"
|
||||
// "sort"
|
||||
// "strings"
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/hmac"
|
||||
"crypto/sha1"
|
||||
"encoding/base64"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"sort"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/minio-io/minio/pkg/utils/config"
|
||||
)
|
||||
|
||||
func SignRequest(user config.User, req *http.Request) {
|
||||
if date := req.Header.Get("Date"); date == "" {
|
||||
req.Header.Set("Date", time.Now().UTC().Format(http.TimeFormat))
|
||||
}
|
||||
hm := hmac.New(sha1.New, []byte(user.SecretKey))
|
||||
ss := getStringToSign(req)
|
||||
io.WriteString(hm, ss)
|
||||
|
||||
authHeader := new(bytes.Buffer)
|
||||
fmt.Fprintf(authHeader, "AWS %s:", user.AccessKey)
|
||||
encoder := base64.NewEncoder(base64.StdEncoding, authHeader)
|
||||
encoder.Write(hm.Sum(nil))
|
||||
encoder.Close()
|
||||
req.Header.Set("Authorization", authHeader.String())
|
||||
}
|
||||
|
||||
// This package implements verification side of Object API Signature request
|
||||
func ValidateRequest(user config.User, req *http.Request) (bool, error) {
|
||||
if date := req.Header.Get("Date"); date == "" {
|
||||
return false, fmt.Errorf("Date should be set")
|
||||
}
|
||||
hm := hmac.New(sha1.New, []byte(user.SecretKey))
|
||||
ss := getStringToSign(req)
|
||||
io.WriteString(hm, ss)
|
||||
|
||||
authHeader := new(bytes.Buffer)
|
||||
fmt.Fprintf(authHeader, "AWS %s:", user.AccessKey)
|
||||
encoder := base64.NewEncoder(base64.StdEncoding, authHeader)
|
||||
encoder.Write(hm.Sum(nil))
|
||||
encoder.Close()
|
||||
|
||||
if req.Header.Get("Authorization") != authHeader.String() {
|
||||
return false, fmt.Errorf("Authorization header mismatch")
|
||||
}
|
||||
return true, nil
|
||||
}
|
||||
|
||||
// From the Amazon docs:
|
||||
//
|
||||
// "github.com/minio-io/minio/pkg/utils/database"
|
||||
//)
|
||||
// StringToSign = HTTP-Verb + "\n" +
|
||||
// Content-MD5 + "\n" +
|
||||
// Content-Type + "\n" +
|
||||
// Date + "\n" +
|
||||
// CanonicalizedAmzHeaders +
|
||||
// CanonicalizedResource;
|
||||
func getStringToSign(req *http.Request) string {
|
||||
buf := new(bytes.Buffer)
|
||||
buf.WriteString(req.Method)
|
||||
buf.WriteByte('\n')
|
||||
buf.WriteString(req.Header.Get("Content-MD5"))
|
||||
buf.WriteByte('\n')
|
||||
buf.WriteString(req.Header.Get("Content-Type"))
|
||||
buf.WriteByte('\n')
|
||||
if req.Header.Get("x-amz-date") == "" {
|
||||
buf.WriteString(req.Header.Get("Date"))
|
||||
}
|
||||
buf.WriteByte('\n')
|
||||
writeCanonicalizedAmzHeaders(buf, req)
|
||||
writeCanonicalizedResource(buf, req)
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
func hasPrefixCaseInsensitive(s, pfx string) bool {
|
||||
if len(pfx) > len(s) {
|
||||
return false
|
||||
}
|
||||
shead := s[:len(pfx)]
|
||||
if shead == pfx {
|
||||
return true
|
||||
}
|
||||
shead = strings.ToLower(shead)
|
||||
return shead == pfx || shead == strings.ToLower(pfx)
|
||||
}
|
||||
|
||||
func writeCanonicalizedAmzHeaders(buf *bytes.Buffer, req *http.Request) {
|
||||
amzHeaders := make([]string, 0)
|
||||
vals := make(map[string][]string)
|
||||
for k, vv := range req.Header {
|
||||
if hasPrefixCaseInsensitive(k, "x-amz-") {
|
||||
lk := strings.ToLower(k)
|
||||
amzHeaders = append(amzHeaders, lk)
|
||||
vals[lk] = vv
|
||||
}
|
||||
}
|
||||
sort.Strings(amzHeaders)
|
||||
for _, k := range amzHeaders {
|
||||
buf.WriteString(k)
|
||||
buf.WriteByte(':')
|
||||
for idx, v := range vals[k] {
|
||||
if idx > 0 {
|
||||
buf.WriteByte(',')
|
||||
}
|
||||
if strings.Contains(v, "\n") {
|
||||
// TODO: "Unfold" long headers that
|
||||
// span multiple lines (as allowed by
|
||||
// RFC 2616, section 4.2) by replacing
|
||||
// the folding white-space (including
|
||||
// new-line) by a single space.
|
||||
buf.WriteString(v)
|
||||
} else {
|
||||
buf.WriteString(v)
|
||||
}
|
||||
}
|
||||
buf.WriteByte('\n')
|
||||
}
|
||||
}
|
||||
|
||||
// Must be sorted:
|
||||
var subResList = []string{"acl", "lifecycle", "location", "logging", "notification", "partNumber", "policy", "requestPayment", "torrent", "uploadId", "uploads", "versionId", "versioning", "versions", "website"}
|
||||
|
||||
// From the Amazon docs:
|
||||
//
|
||||
//func ValidateAccessKey(key []byte) bool {
|
||||
// for _, char := range key {
|
||||
// if isalnum(char) {
|
||||
// continue
|
||||
// }
|
||||
// switch char {
|
||||
// case '-':
|
||||
// case '.':
|
||||
// case '_':
|
||||
// case '~':
|
||||
// continue
|
||||
// default:
|
||||
// return false
|
||||
// }
|
||||
// }
|
||||
// return true
|
||||
//}
|
||||
//
|
||||
//func getAccessID() {
|
||||
//}
|
||||
//
|
||||
//func getSecretID() {
|
||||
//}
|
||||
//
|
||||
//// This package implements verification side of Object API Signature request
|
||||
//func ValidateRequest(req *http.Request) (bool, error) {
|
||||
// if date := req.Header.Get("Date"); date == "" {
|
||||
// return false, fmt.Errorf("Date should be set")
|
||||
// }
|
||||
// hm := hmac.New(sha1.New, []byte(SecretAccessKey))
|
||||
// ss := getStringToSign(req)
|
||||
// io.WriteString(hm, ss)
|
||||
// authHeader := new(bytes.Buffer)
|
||||
// if req.Header.Get("User-Agent") == "Minio" {
|
||||
// fmt.Fprintf(authHeader, "MINIO %s:", AccessKey)
|
||||
// } else {
|
||||
// fmt.Fprintf(authHeader, "AWS %s:", AccessKey)
|
||||
// }
|
||||
// encoder := base64.NewEncoder(base64.StdEncoding, authHeader)
|
||||
// encoder.Write(hm.Sum(nil))
|
||||
// defer encoder.Close()
|
||||
// if req.Header.Get("Authorization") != authHeader.String() {
|
||||
// return false, fmt.Errorf("Authorization header mismatch")
|
||||
// }
|
||||
// return true, nil
|
||||
//}
|
||||
//
|
||||
//// From the Amazon docs:
|
||||
////
|
||||
//// StringToSign = HTTP-Verb + "\n" +
|
||||
//// Content-MD5 + "\n" +
|
||||
//// Content-Type + "\n" +
|
||||
//// Date + "\n" +
|
||||
//// CanonicalizedAmzHeaders +
|
||||
//// CanonicalizedResource;
|
||||
//func getStringToSign(req *http.Request) string {
|
||||
// buf := new(bytes.Buffer)
|
||||
// buf.WriteString(req.Method)
|
||||
// buf.WriteByte('\n')
|
||||
// buf.WriteString(req.Header.Get("Content-MD5"))
|
||||
// buf.WriteByte('\n')
|
||||
// buf.WriteString(req.Header.Get("Content-Type"))
|
||||
// buf.WriteByte('\n')
|
||||
// if req.Header.Get("x-amz-date") == "" {
|
||||
// buf.WriteString(req.Header.Get("Date"))
|
||||
// }
|
||||
// buf.WriteByte('\n')
|
||||
// writeCanonicalizedAmzHeaders(buf, req)
|
||||
// writeCanonicalizedResource(buf, req)
|
||||
// return buf.String()
|
||||
//}
|
||||
//
|
||||
//func hasPrefixCaseInsensitive(s, pfx string) bool {
|
||||
// if len(pfx) > len(s) {
|
||||
// return false
|
||||
// }
|
||||
// shead := s[:len(pfx)]
|
||||
// if shead == pfx {
|
||||
// return true
|
||||
// }
|
||||
// shead = strings.ToLower(shead)
|
||||
// return shead == pfx || shead == strings.ToLower(pfx)
|
||||
//}
|
||||
//
|
||||
//func writeCanonicalizedAmzHeaders(buf *bytes.Buffer, req *http.Request) {
|
||||
// amzHeaders := make([]string, 0)
|
||||
// vals := make(map[string][]string)
|
||||
// for k, vv := range req.Header {
|
||||
// if hasPrefixCaseInsensitive(k, "x-amz-") {
|
||||
// lk := strings.ToLower(k)
|
||||
// amzHeaders = append(amzHeaders, lk)
|
||||
// vals[lk] = vv
|
||||
// }
|
||||
// }
|
||||
// sort.Strings(amzHeaders)
|
||||
// for _, k := range amzHeaders {
|
||||
// buf.WriteString(k)
|
||||
// buf.WriteByte(':')
|
||||
// for idx, v := range vals[k] {
|
||||
// if idx > 0 {
|
||||
// buf.WriteByte(',')
|
||||
// }
|
||||
// if strings.Contains(v, "\n") {
|
||||
// // TODO: "Unfold" long headers that
|
||||
// // span multiple lines (as allowed by
|
||||
// // RFC 2616, section 4.2) by replacing
|
||||
// // the folding white-space (including
|
||||
// // new-line) by a single space.
|
||||
// buf.WriteString(v)
|
||||
// } else {
|
||||
// buf.WriteString(v)
|
||||
// }
|
||||
// }
|
||||
// buf.WriteByte('\n')
|
||||
// }
|
||||
//}
|
||||
//
|
||||
//// Must be sorted:
|
||||
//var subResList = []string{"acl", "lifecycle", "location", "logging", "notification", "partNumber", "policy", "requestPayment", "torrent", "uploadId", "uploads", "versionId", "versioning", "versions", "website"}
|
||||
//
|
||||
//// From the Amazon docs:
|
||||
////
|
||||
//// CanonicalizedResource = [ "/" + Bucket ] +
|
||||
//// <HTTP-Request-URI, from the protocol name up to the query string> +
|
||||
//// [ sub-resource, if present. For example "?acl", "?location", "?logging", or "?torrent"];
|
||||
//func writeCanonicalizedResource(buf *bytes.Buffer, req *http.Request) {
|
||||
// bucket := getBucketFromHostname(req)
|
||||
// if bucket != "" {
|
||||
// buf.WriteByte('/')
|
||||
// buf.WriteString(bucket)
|
||||
// }
|
||||
// buf.WriteString(req.URL.Path)
|
||||
// if req.URL.RawQuery != "" {
|
||||
// n := 0
|
||||
// vals, _ := url.ParseQuery(req.URL.RawQuery)
|
||||
// for _, subres := range subResList {
|
||||
// if vv, ok := vals[subres]; ok && len(vv) > 0 {
|
||||
// n++
|
||||
// if n == 1 {
|
||||
// buf.WriteByte('?')
|
||||
// } else {
|
||||
// buf.WriteByte('&')
|
||||
// }
|
||||
// buf.WriteString(subres)
|
||||
// if len(vv[0]) > 0 {
|
||||
// buf.WriteByte('=')
|
||||
// buf.WriteString(url.QueryEscape(vv[0]))
|
||||
// }
|
||||
// }
|
||||
// }
|
||||
// }
|
||||
//}
|
||||
//
|
||||
//// hasDotSuffix reports whether s ends with "." + suffix.
|
||||
//func hasDotSuffix(s string, suffix string) bool {
|
||||
// return len(s) >= len(suffix)+1 && strings.HasSuffix(s, suffix) && s[len(s)-len(suffix)-1] == '.'
|
||||
//}
|
||||
//
|
||||
//func getBucketFromHostname(req *http.Request) string {
|
||||
// host := req.Host
|
||||
// if host == "" {
|
||||
// host = req.URL.Host
|
||||
// }
|
||||
// if host == "s3.amazonaws.com" {
|
||||
// return ""
|
||||
// }
|
||||
// if hostSuffix := "s3.amazonaws.com"; hasDotSuffix(host, hostSuffix) {
|
||||
// return host[:len(host)-len(hostSuffix)-1]
|
||||
// }
|
||||
// if lastColon := strings.LastIndex(host, ":"); lastColon != -1 {
|
||||
// return host[:lastColon]
|
||||
// }
|
||||
// return host
|
||||
//}
|
||||
// CanonicalizedResource = [ "/" + Bucket ] +
|
||||
// <HTTP-Request-URI, from the protocol name up to the query string> +
|
||||
// [ sub-resource, if present. For example "?acl", "?location", "?logging", or "?torrent"];
|
||||
func writeCanonicalizedResource(buf *bytes.Buffer, req *http.Request) {
|
||||
buf.WriteString(req.URL.Path)
|
||||
if req.URL.RawQuery != "" {
|
||||
n := 0
|
||||
vals, _ := url.ParseQuery(req.URL.RawQuery)
|
||||
for _, subres := range subResList {
|
||||
if vv, ok := vals[subres]; ok && len(vv) > 0 {
|
||||
n++
|
||||
if n == 1 {
|
||||
buf.WriteByte('?')
|
||||
} else {
|
||||
buf.WriteByte('&')
|
||||
}
|
||||
buf.WriteString(subres)
|
||||
if len(vv[0]) > 0 {
|
||||
buf.WriteByte('=')
|
||||
buf.WriteString(url.QueryEscape(vv[0]))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue