Files
probo/pkg/deviceagent/hostinfo.go
Sacha Al Himdani 4c57d201a4 Make license declarations consistently MIT
The source headers, LICENSE files, and license metadata had drifted
apart. Align the entire project to MIT:

- Convert every source-file header to the MIT text across all comment
  styles (Go, TS, TSX, JS, MJS, SQL, CSS, GraphQL, shell), including
  SPDX-License-Identifier tags
- Set the root and cookie-banner LICENSE files to the MIT text with a
  "MIT License" title line
- Switch the package.json license fields, Docker image label, and
  cookie-banner README to MIT
- Update docs and the genmodels header generator accordingly
- Normalize copyright lines to a single format
  (Copyright (c) <year(s)> Probo Inc <hello@probo.com>.): unify the
  hello@getprobo.com and hello@probo.inc emails to hello@probo.com and
  the comma-separated years to a hyphenated range

Genuine third-party references are intentionally left untouched: the
Lucide icon attributions (Lucide is ISC) and the trivy dependency
license allowlist.

Signed-off-by: Sacha Al Himdani <sacha@probo.com>
2026-07-13 16:21:14 +02:00

108 lines
2.7 KiB
Go

// Copyright (c) 2026 Probo Inc <hello@probo.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package deviceagent
import (
"context"
"crypto/sha256"
"encoding/hex"
"net"
"os"
"os/exec"
"strings"
)
type (
// HostInfo is the device identity reported by the agent.
HostInfo struct {
Hostname string
Platform string
OSVersion string
HardwareUUID string
SerialNumber *string
}
)
// CollectHostInfo gathers host identity using best-effort probes.
func CollectHostInfo() HostInfo {
info := HostInfo{
Platform: platformString(),
}
if h, err := os.Hostname(); err == nil {
info.Hostname = h
}
if info.Hostname == "" {
info.Hostname = "unknown-host"
}
info.OSVersion = collectOSVersion()
info.HardwareUUID = collectHardwareUUID()
if sn := collectSerialNumber(); sn != "" {
info.SerialNumber = &sn
}
return info
}
// hashFallbackUUID derives a stable fallback from hostname and MAC.
func hashFallbackUUID() string {
hostname, _ := os.Hostname()
mac := firstStableMAC()
h := sha256.New()
h.Write([]byte(hostname))
h.Write([]byte{0})
h.Write([]byte(mac))
return hex.EncodeToString(h.Sum(nil))
}
func firstStableMAC() string {
ifaces, err := net.Interfaces()
if err != nil {
return ""
}
for _, ifc := range ifaces {
if ifc.Flags&net.FlagLoopback != 0 {
continue
}
if len(ifc.HardwareAddr) == 0 {
continue
}
return ifc.HardwareAddr.String()
}
return ""
}
// runQuiet runs a command and returns trimmed stdout.
func runQuiet(ctx context.Context, name string, args ...string) (string, error) {
cmd := exec.CommandContext(ctx, name, args...)
out, err := cmd.Output()
return strings.TrimSpace(string(out)), err
}