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361 lines
10 KiB
361 lines
10 KiB
/*
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* Minio Cloud Storage, (C) 2016 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"fmt"
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"net/http"
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"net/url"
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"os"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"time"
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jwtgo "github.com/dgrijalva/jwt-go"
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"github.com/dustin/go-humanize"
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"github.com/gorilla/rpc/v2/json2"
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"github.com/minio/minio-go"
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"github.com/minio/minio/pkg/disk"
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)
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// isJWTReqAuthenticated validates if any incoming request to be a
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// valid JWT authenticated request.
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func isJWTReqAuthenticated(req *http.Request) bool {
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jwt := initJWT()
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token, e := jwtgo.ParseFromRequest(req, func(token *jwtgo.Token) (interface{}, error) {
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if _, ok := token.Method.(*jwtgo.SigningMethodHMAC); !ok {
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return nil, fmt.Errorf("Unexpected signing method: %v", token.Header["alg"])
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}
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return jwt.secretAccessKey, nil
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})
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if e != nil {
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return false
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}
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return token.Valid
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}
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// GenericRep - reply structure for calls for which reply is success/failure
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// for ex. RemoveObject MakeBucket
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type GenericRep struct {
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UIVersion string `json:"uiVersion"`
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}
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// GenericArgs - empty struct
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type GenericArgs struct{}
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// GetUIVersion - get UI version
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func (web webAPI) GetUIVersion(r *http.Request, args *GenericArgs, reply *GenericRep) error {
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reply.UIVersion = uiVersion
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return nil
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}
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// ServerInfoRep - server info reply.
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type ServerInfoRep struct {
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MinioVersion string
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MinioMemory string
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MinioPlatform string
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MinioRuntime string
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UIVersion string `json:"uiVersion"`
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}
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// ServerInfoArgs - server info args.
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type ServerInfoArgs struct{}
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// ServerInfo - get server info.
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func (web *webAPI) ServerInfo(r *http.Request, args *ServerInfoArgs, reply *ServerInfoRep) error {
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if !isJWTReqAuthenticated(r) {
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return &json2.Error{Message: "Unauthorized request"}
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}
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host, err := os.Hostname()
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if err != nil {
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host = ""
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}
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memstats := &runtime.MemStats{}
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runtime.ReadMemStats(memstats)
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mem := fmt.Sprintf("Used: %s | Allocated: %s | Used-Heap: %s | Allocated-Heap: %s",
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humanize.Bytes(memstats.Alloc),
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humanize.Bytes(memstats.TotalAlloc),
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humanize.Bytes(memstats.HeapAlloc),
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humanize.Bytes(memstats.HeapSys))
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platform := fmt.Sprintf("Host: %s | OS: %s | Arch: %s",
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host,
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runtime.GOOS,
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runtime.GOARCH)
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goruntime := fmt.Sprintf("Version: %s | CPUs: %s", runtime.Version(), strconv.Itoa(runtime.NumCPU()))
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reply.MinioVersion = minioVersion
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reply.MinioMemory = mem
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reply.MinioPlatform = platform
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reply.MinioRuntime = goruntime
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reply.UIVersion = uiVersion
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return nil
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}
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// DiskInfoArgs - disk info args.
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type DiskInfoArgs struct{}
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// DiskInfoRep - disk info reply.
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type DiskInfoRep struct {
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DiskInfo disk.Info `json:"diskInfo"`
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UIVersion string `json:"uiVersion"`
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}
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// DiskInfo - get disk statistics.
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func (web *webAPI) DiskInfo(r *http.Request, args *DiskInfoArgs, reply *DiskInfoRep) error {
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if !isJWTReqAuthenticated(r) {
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return &json2.Error{Message: "Unauthorized request"}
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}
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info, e := disk.GetInfo(web.FSPath)
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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reply.DiskInfo = info
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reply.UIVersion = uiVersion
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return nil
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}
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// MakeBucketArgs - make bucket args.
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type MakeBucketArgs struct {
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BucketName string `json:"bucketName"`
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}
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// MakeBucket - make a bucket.
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func (web *webAPI) MakeBucket(r *http.Request, args *MakeBucketArgs, reply *GenericRep) error {
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if !isJWTReqAuthenticated(r) {
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return &json2.Error{Message: "Unauthorized request"}
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}
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reply.UIVersion = uiVersion
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e := web.Client.MakeBucket(args.BucketName, "", "")
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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return nil
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}
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// ListBucketsArgs - list bucket args.
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type ListBucketsArgs struct{}
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// ListBucketsRep - list buckets response
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type ListBucketsRep struct {
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Buckets []BucketInfo `json:"buckets"`
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UIVersion string `json:"uiVersion"`
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}
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// BucketInfo container for list buckets metadata.
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type BucketInfo struct {
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// The name of the bucket.
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Name string `json:"name"`
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// Date the bucket was created.
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CreationDate time.Time `json:"creationDate"`
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}
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// ListBuckets - list buckets api.
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func (web *webAPI) ListBuckets(r *http.Request, args *ListBucketsArgs, reply *ListBucketsRep) error {
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if !isJWTReqAuthenticated(r) {
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return &json2.Error{Message: "Unauthorized request"}
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}
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buckets, e := web.Client.ListBuckets()
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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for _, bucket := range buckets {
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reply.Buckets = append(reply.Buckets, BucketInfo{
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Name: bucket.Name,
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CreationDate: bucket.CreationDate,
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})
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}
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reply.UIVersion = uiVersion
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return nil
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}
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// ListObjectsArgs - list object args.
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type ListObjectsArgs struct {
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BucketName string `json:"bucketName"`
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Prefix string `json:"prefix"`
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}
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// ListObjectsRep - list objects response.
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type ListObjectsRep struct {
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Objects []ObjectInfo `json:"objects"`
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UIVersion string `json:"uiVersion"`
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}
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// ObjectInfo container for list objects metadata.
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type ObjectInfo struct {
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// Name of the object
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Key string `json:"name"`
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// Date and time the object was last modified.
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LastModified time.Time `json:"lastModified"`
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// Size in bytes of the object.
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Size int64 `json:"size"`
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// ContentType is mime type of the object.
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ContentType string `json:"contentType"`
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}
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// ListObjects - list objects api.
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func (web *webAPI) ListObjects(r *http.Request, args *ListObjectsArgs, reply *ListObjectsRep) error {
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if !isJWTReqAuthenticated(r) {
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return &json2.Error{Message: "Unauthorized request"}
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}
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doneCh := make(chan struct{})
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defer close(doneCh)
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for object := range web.Client.ListObjects(args.BucketName, args.Prefix, false, doneCh) {
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if object.Err != nil {
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return &json2.Error{Message: object.Err.Error()}
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}
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objectInfo := ObjectInfo{
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Key: object.Key,
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LastModified: object.LastModified,
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Size: object.Size,
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}
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// TODO - This can get slower for large directories, we can
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// perhaps extend the ListObjects XML to reply back
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// ContentType as well.
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if !strings.HasSuffix(object.Key, "/") && object.Size > 0 {
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objectStatInfo, e := web.Client.StatObject(args.BucketName, object.Key)
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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objectInfo.ContentType = objectStatInfo.ContentType
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}
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reply.Objects = append(reply.Objects, objectInfo)
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}
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reply.UIVersion = uiVersion
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return nil
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}
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// PutObjectURLArgs - args to generate url for upload access.
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type PutObjectURLArgs struct {
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TargetHost string `json:"targetHost"`
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BucketName string `json:"bucketName"`
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ObjectName string `json:"objectName"`
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}
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// PutObjectURLRep - reply for presigned upload url request.
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type PutObjectURLRep struct {
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URL string `json:"url"`
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UIVersion string `json:"uiVersion"`
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}
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// PutObjectURL - generates url for upload access.
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func (web *webAPI) PutObjectURL(r *http.Request, args *PutObjectURLArgs, reply *PutObjectURLRep) error {
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if !isJWTReqAuthenticated(r) {
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return &json2.Error{Message: "Unauthorized request"}
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}
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client, e := minio.New(args.TargetHost, web.accessKeyID, web.secretAccessKey, web.inSecure)
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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signedURLStr, e := client.PresignedPutObject(args.BucketName, args.ObjectName, time.Duration(60*60)*time.Second)
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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reply.URL = signedURLStr
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reply.UIVersion = uiVersion
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return nil
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}
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// GetObjectURLArgs - args to generate url for download access.
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type GetObjectURLArgs struct {
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TargetHost string `json:"targetHost"`
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BucketName string `json:"bucketName"`
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ObjectName string `json:"objectName"`
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}
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// GetObjectURLRep - reply for presigned download url request.
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type GetObjectURLRep struct {
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URL string `json:"url"`
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UIVersion string `json:"uiVersion"`
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}
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// GetObjectURL - generates url for download access.
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func (web *webAPI) GetObjectURL(r *http.Request, args *GetObjectURLArgs, reply *GetObjectURLRep) error {
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if !isJWTReqAuthenticated(r) {
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return &json2.Error{Message: "Unauthorized request"}
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}
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// See if object exists.
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_, e := web.Client.StatObject(args.BucketName, args.ObjectName)
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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client, e := minio.New(args.TargetHost, web.accessKeyID, web.secretAccessKey, web.inSecure)
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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reqParams := make(url.Values)
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// Set content disposition for browser to download the file.
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reqParams.Set("response-content-disposition", fmt.Sprintf(`attachment; filename="%s"`, filepath.Base(args.ObjectName)))
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signedURLStr, e := client.PresignedGetObject(args.BucketName, args.ObjectName, time.Duration(60*60)*time.Second, reqParams)
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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reply.URL = signedURLStr
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reply.UIVersion = uiVersion
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return nil
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}
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// RemoveObjectArgs - args to remove an object
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type RemoveObjectArgs struct {
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TargetHost string `json:"targetHost"`
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BucketName string `json:"bucketName"`
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ObjectName string `json:"objectName"`
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}
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// RemoveObject - removes an object.
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func (web *webAPI) RemoveObject(r *http.Request, args *RemoveObjectArgs, reply *GenericRep) error {
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if !isJWTReqAuthenticated(r) {
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return &json2.Error{Message: "Unauthorized request"}
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}
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reply.UIVersion = uiVersion
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e := web.Client.RemoveObject(args.BucketName, args.ObjectName)
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if e != nil {
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return &json2.Error{Message: e.Error()}
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}
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return nil
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}
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// LoginArgs - login arguments.
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type LoginArgs struct {
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Username string `json:"username" form:"username"`
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Password string `json:"password" form:"password"`
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}
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// LoginRep - login reply.
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type LoginRep struct {
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Token string `json:"token"`
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UIVersion string `json:"uiVersion"`
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}
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// Login - user login handler.
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func (web *webAPI) Login(r *http.Request, args *LoginArgs, reply *LoginRep) error {
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jwt := initJWT()
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if jwt.Authenticate(args.Username, args.Password) {
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token, err := jwt.GenerateToken(args.Username)
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if err != nil {
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return &json2.Error{Message: err.Cause.Error(), Data: err.String()}
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}
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reply.Token = token
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reply.UIVersion = uiVersion
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return nil
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}
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return &json2.Error{Message: "Invalid credentials"}
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}
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