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accservice.go
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accservice.go
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// Copyright 2018-2020 CERN
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// In applying this license, CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
package accservice
import (
"encoding/json"
"fmt"
"net/url"
"path"
"strings"
"github.com/pkg/errors"
"github.com/cs3org/reva/v2/pkg/mentix/config"
"github.com/cs3org/reva/v2/pkg/mentix/utils/network"
)
// RequestResponse holds the response of an accounts service query.
type RequestResponse struct {
Success bool
Error string
Data interface{}
}
type accountsServiceSettings struct {
URL *url.URL
User string
Password string
}
var settings accountsServiceSettings
// Query performs an account service query.
func Query(endpoint string, params network.URLParams) (*RequestResponse, error) {
fullURL, err := network.GenerateURL(fmt.Sprintf("%v://%v", settings.URL.Scheme, settings.URL.Host), path.Join(settings.URL.Path, endpoint), params)
if err != nil {
return nil, errors.Wrap(err, "error while building the service accounts query URL")
}
data, err := network.ReadEndpoint(fullURL, &network.BasicAuth{User: settings.User, Password: settings.Password}, false)
if err != nil {
return nil, errors.Wrap(err, "unable to query the service accounts endpoint")
}
resp := &RequestResponse{}
if err := json.Unmarshal(data, resp); err != nil {
return nil, errors.Wrap(err, "unable to unmarshal response data")
}
return resp, nil
}
// GetResponseValue gets a value from an account service query using a dotted path notation.
func GetResponseValue(resp *RequestResponse, path string) interface{} {
if data, ok := resp.Data.(map[string]interface{}); ok {
tokens := strings.Split(path, ".")
for i, name := range tokens {
if i == len(tokens)-1 {
if value, ok := data[name]; ok {
return value
}
}
if data, ok = data[name].(map[string]interface{}); !ok {
break
}
}
}
return nil
}
// InitAccountsService initializes the global accounts service.
func InitAccountsService(conf *config.Configuration) error {
URL, err := url.Parse(conf.AccountsService.URL)
if err != nil {
return errors.Wrap(err, "unable to parse the accounts service URL")
}
settings.URL = URL
settings.User = conf.AccountsService.User
settings.Password = conf.AccountsService.Password
return nil
}