fix: allow accountInfo, addUser and getUserInfo implicit (#10978)

- accountInfo API that returns information about
  user, access to buckets and the size per bucket
- addUser - user is allowed to change their secretKey
- getUserInfo - returns user info if the incoming
  is the same user requesting their information

pkg/madmin/README.md

@@ -47,7 +47,7 @@ func main() {
 |:------------------------------------|:-----------------------------------------|:-------------------|:--------------------------|
 | [`ServiceTrace`](#ServiceTrace)     | [`ServerInfo`](#ServerInfo)              | [`Heal`](#Heal)    | [`GetConfig`](#GetConfig) |
 | [`ServiceStop`](#ServiceStop)       | [`StorageInfo`](#StorageInfo)            |                    | [`SetConfig`](#SetConfig) |
-| [`ServiceRestart`](#ServiceRestart) | [`AccountUsageInfo`](#AccountUsageInfo)  |                    |                           |
+| [`ServiceRestart`](#ServiceRestart) | [`AccountInfo`](#AccountInfo)  |                    |                           |
 
 
 
@@ -251,16 +251,16 @@ __Example__
 
  ```
 
-<a name="AccountUsageInfo"></a>
+<a name="AccountInfo"></a>
 
-### AccountUsageInfo(ctx context.Context) (AccountUsageInfo, error)
+### AccountInfo(ctx context.Context) (AccountInfo, error)
 
 Fetches accounting usage information for the current authenticated user
 
 | Param                          | Type                 | Description             |
 |--------------------------------|----------------------|-------------------------|
-| `AccountUsageInfo.AccountName` | _string_             | Account name.           |
-| `AccountUsageInfo.Buckets`     | _[]BucketUsageInfo_  | Bucket usage info.      |
+| `AccountInfo.AccountName` | _string_             | Account name.           |
+| `AccountInfo.Buckets`     | _[]BucketUsageInfo_  | Bucket usage info.      |
 
 
 | Param                      | Type            | Description                             |
@@ -281,12 +281,12 @@ __Example__
 
 ```go
 
-   accountUsageInfo, err := madmClnt.AccountUsageInfo(context.Background())
+   accountInfo, err := madmClnt.AccountInfo(context.Background())
    if err != nil {
 	log.Fatalln(err)
    }
 
-   log.Println(accountUsageInfo)
+   log.Println(accountInfo)
 
 ```
 

pkg/madmin/examples/accounting-info.go

@@ -37,10 +37,10 @@ func main() {
 		log.Fatalln(err)
 	}
 
-	accountUsageInfo, err := madmClnt.AccountUsageInfo(context.Background())
+	accountInfo, err := madmClnt.AccountInfo(context.Background())
 	if err != nil {
 		log.Fatalln(err)
 	}
 
-	log.Println(accountUsageInfo)
+	log.Println(accountInfo)
 }

pkg/madmin/user-commands.go

@@ -44,37 +44,38 @@ type BucketUsageInfo struct {
 	Access  AccountAccess `json:"access"`
 }
 
-// AccountUsageInfo represents the account usage info of an
+// AccountInfo represents the account usage info of an
 // account across buckets.
-type AccountUsageInfo struct {
+type AccountInfo struct {
 	AccountName string
+	Policy      iampolicy.Policy
 	Buckets     []BucketUsageInfo
 }
 
-// AccountUsageInfo returns the usage info for the authenticating account.
-func (adm *AdminClient) AccountUsageInfo(ctx context.Context) (AccountUsageInfo, error) {
-	resp, err := adm.executeMethod(ctx, http.MethodGet, requestData{relPath: adminAPIPrefix + "/accountusageinfo"})
+// AccountInfo returns the usage info for the authenticating account.
+func (adm *AdminClient) AccountInfo(ctx context.Context) (AccountInfo, error) {
+	resp, err := adm.executeMethod(ctx, http.MethodGet, requestData{relPath: adminAPIPrefix + "/accountinfo"})
 	defer closeResponse(resp)
 	if err != nil {
-		return AccountUsageInfo{}, err
+		return AccountInfo{}, err
 	}
 
 	// Check response http status code
 	if resp.StatusCode != http.StatusOK {
-		return AccountUsageInfo{}, httpRespToErrorResponse(resp)
+		return AccountInfo{}, httpRespToErrorResponse(resp)
 	}
 
 	// Unmarshal the server's json response
-	var accountInfo AccountUsageInfo
+	var accountInfo AccountInfo
 
 	respBytes, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
-		return AccountUsageInfo{}, err
+		return AccountInfo{}, err
 	}
 
 	err = json.Unmarshal(respBytes, &accountInfo)
 	if err != nil {
-		return AccountUsageInfo{}, err
+		return AccountInfo{}, err
 	}
 
 	return accountInfo, nil