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client_log.go
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client_log.go
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// Copyright 2020 Northern.tech AS
//
// 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.
package client
import (
"bytes"
"fmt"
"net/http"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
)
type LogUploader interface {
Upload(api ApiRequester, server string, logs LogData) error
}
type LogData struct {
DeploymentID string `json:"-"`
Messages []byte `json:"messages"`
}
type LogUploadClient struct {
}
func NewLog() LogUploader {
return &LogUploadClient{}
}
// Report status information to the backend
func (u *LogUploadClient) Upload(api ApiRequester, url string, logs LogData) error {
req, err := makeLogUploadRequest(url, &logs)
if err != nil {
return errors.Wrapf(err, "failed to prepare log upload request")
}
r, err := api.Do(req)
if err != nil {
log.Error("failed to upload logs: ", err)
return errors.Wrapf(err, "uploading logs failed")
}
defer r.Body.Close()
// HTTP 204 No Content
if r.StatusCode != http.StatusNoContent {
log.Errorf("Got unexpected HTTP status when uploading log: %v", r.StatusCode)
return NewAPIError(errors.Errorf("uploading logs failed, bad status %v", r.StatusCode), r)
}
log.Debugf("Logs uploaded, response %v", r)
return nil
}
func makeLogUploadRequest(server string, logs *LogData) (*http.Request, error) {
path := fmt.Sprintf("/deployments/device/deployments/%s/log",
logs.DeploymentID)
url := buildApiURL(server, path)
hreq, err := http.NewRequest(http.MethodPut, url, bytes.NewReader(logs.Messages))
if err != nil {
return nil, errors.Wrapf(err, "failed to create log sending HTTP request")
}
hreq.Header.Add("Content-Type", "application/json")
return hreq, nil
}