76 lines
2.1 KiB
Go
76 lines
2.1 KiB
Go
|
// Copyright 2017 CoreOS, Inc.
|
||
|
|
//
|
||
|
|
// 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.
|
||
|
|
|
||
|
|
// +build linux
|
||
|
|
|
||
|
|
package client
|
||
|
|
|
||
|
|
import (
|
||
|
|
"bytes"
|
||
|
|
"fmt"
|
||
|
|
"io/ioutil"
|
||
|
|
)
|
||
|
|
|
||
|
|
const (
|
||
|
|
machineIDPath = "/etc/machine-id"
|
||
|
|
bootIDPath = "/proc/sys/kernel/random/boot_id"
|
||
|
|
)
|
||
|
|
|
||
|
|
// NewMachineClient creates a machine-wide client, updating applications
|
||
|
|
// that may be used by multiple users. On Linux the system's machine id
|
||
|
|
// is used as the user id, and boot id is used as the omaha session id.
|
||
|
|
func NewMachineClient(serverURL string) (*Client, error) {
|
||
|
|
machineID, err := ioutil.ReadFile(machineIDPath)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Errorf("omaha: failed to read machine id: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
machineID = bytes.TrimSpace(machineID)
|
||
|
|
// Although machineID should be a UUID, it is formatted as a
|
||
|
|
// plain hex string, omitting the normal '-' separators, so it
|
||
|
|
// should be 32 bytes long. It would be nice to reformat it to
|
||
|
|
// add the '-' chars but update_engine doesn't so stick with its
|
||
|
|
// behavior for now.
|
||
|
|
if len(machineID) < 32 {
|
||
|
|
fmt.Errorf("omaha: incomplete machine id: %q",
|
||
|
|
machineID)
|
||
|
|
}
|
||
|
|
|
||
|
|
bootID, err := ioutil.ReadFile(bootIDPath)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Errorf("omaha: failed to read boot id: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
bootID = bytes.TrimSpace(bootID)
|
||
|
|
// unlike machineID, bootID *does* include '-' chars.
|
||
|
|
if len(bootID) < 36 {
|
||
|
|
fmt.Errorf("omaha: incomplete boot id: %q", bootID)
|
||
|
|
}
|
||
|
|
|
||
|
|
c := &Client{
|
||
|
|
apiClient: newHTTPClient(),
|
||
|
|
clientVersion: "go-omaha",
|
||
|
|
userID: string(machineID),
|
||
|
|
sessionID: string(bootID),
|
||
|
|
isMachine: true,
|
||
|
|
apps: make(map[string]*AppClient),
|
||
|
|
}
|
||
|
|
|
||
|
|
if err := c.SetServerURL(serverURL); err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return c, nil
|
||
|
|
}
|