mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-05 00:39:59 +00:00
121 lines
3.4 KiB
Go
121 lines
3.4 KiB
Go
// Copyright The OpenTelemetry Authors
|
|
//
|
|
// 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 resource // import "go.opentelemetry.io/otel/sdk/resource"
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"strings"
|
|
|
|
semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
|
|
)
|
|
|
|
type hostIDProvider func() (string, error)
|
|
|
|
var defaultHostIDProvider hostIDProvider = platformHostIDReader.read
|
|
|
|
var hostID = defaultHostIDProvider
|
|
|
|
type hostIDReader interface {
|
|
read() (string, error)
|
|
}
|
|
|
|
type fileReader func(string) (string, error)
|
|
|
|
type commandExecutor func(string, ...string) (string, error)
|
|
|
|
// hostIDReaderBSD implements hostIDReader.
|
|
type hostIDReaderBSD struct {
|
|
execCommand commandExecutor
|
|
readFile fileReader
|
|
}
|
|
|
|
// read attempts to read the machine-id from /etc/hostid. If not found it will
|
|
// execute `kenv -q smbios.system.uuid`. If neither location yields an id an
|
|
// error will be returned.
|
|
func (r *hostIDReaderBSD) read() (string, error) {
|
|
if result, err := r.readFile("/etc/hostid"); err == nil {
|
|
return strings.TrimSpace(result), nil
|
|
}
|
|
|
|
if result, err := r.execCommand("kenv", "-q", "smbios.system.uuid"); err == nil {
|
|
return strings.TrimSpace(result), nil
|
|
}
|
|
|
|
return "", errors.New("host id not found in: /etc/hostid or kenv")
|
|
}
|
|
|
|
// hostIDReaderDarwin implements hostIDReader.
|
|
type hostIDReaderDarwin struct {
|
|
execCommand commandExecutor
|
|
}
|
|
|
|
// read executes `ioreg -rd1 -c "IOPlatformExpertDevice"` and parses host id
|
|
// from the IOPlatformUUID line. If the command fails or the uuid cannot be
|
|
// parsed an error will be returned.
|
|
func (r *hostIDReaderDarwin) read() (string, error) {
|
|
result, err := r.execCommand("ioreg", "-rd1", "-c", "IOPlatformExpertDevice")
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
lines := strings.Split(result, "\n")
|
|
for _, line := range lines {
|
|
if strings.Contains(line, "IOPlatformUUID") {
|
|
parts := strings.Split(line, " = ")
|
|
if len(parts) == 2 {
|
|
return strings.Trim(parts[1], "\""), nil
|
|
}
|
|
break
|
|
}
|
|
}
|
|
|
|
return "", errors.New("could not parse IOPlatformUUID")
|
|
}
|
|
|
|
type hostIDReaderLinux struct {
|
|
readFile fileReader
|
|
}
|
|
|
|
// read attempts to read the machine-id from /etc/machine-id followed by
|
|
// /var/lib/dbus/machine-id. If neither location yields an ID an error will
|
|
// be returned.
|
|
func (r *hostIDReaderLinux) read() (string, error) {
|
|
if result, err := r.readFile("/etc/machine-id"); err == nil {
|
|
return strings.TrimSpace(result), nil
|
|
}
|
|
|
|
if result, err := r.readFile("/var/lib/dbus/machine-id"); err == nil {
|
|
return strings.TrimSpace(result), nil
|
|
}
|
|
|
|
return "", errors.New("host id not found in: /etc/machine-id or /var/lib/dbus/machine-id")
|
|
}
|
|
|
|
type hostIDDetector struct{}
|
|
|
|
// Detect returns a *Resource containing the platform specific host id.
|
|
func (hostIDDetector) Detect(ctx context.Context) (*Resource, error) {
|
|
hostID, err := hostID()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return NewWithAttributes(
|
|
semconv.SchemaURL,
|
|
semconv.HostID(hostID),
|
|
), nil
|
|
}
|