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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2019 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package daemon
import (
"encoding/json"
"net/http"
"github.com/snapcore/snapd/asserts"
"github.com/snapcore/snapd/client"
"github.com/snapcore/snapd/overlord/auth"
"github.com/snapcore/snapd/overlord/devicestate"
"github.com/snapcore/snapd/overlord/state"
)
var (
serialModelCmd = &Command{
Path: "/v2/model/serial",
GET: getSerial,
UserOK: true,
}
modelCmd = &Command{
Path: "/v2/model",
POST: postModel,
GET: getModel,
UserOK: true,
}
)
type assertType int
const (
serialType assertType = iota
modelType
)
var devicestateRemodel = devicestate.Remodel
type postModelData struct {
NewModel string `json:"new-model"`
}
type modelAssertJSON struct {
Headers map[string]interface{} `json:"headers,omitempty"`
Body string `json:"body,omitempty"`
}
func postModel(c *Command, r *http.Request, _ *auth.UserState) Response {
defer r.Body.Close()
var data postModelData
decoder := json.NewDecoder(r.Body)
if err := decoder.Decode(&data); err != nil {
return BadRequest("cannot decode request body into remodel operation: %v", err)
}
rawNewModel, err := asserts.Decode([]byte(data.NewModel))
if err != nil {
return BadRequest("cannot decode new model assertion: %v", err)
}
newModel, ok := rawNewModel.(*asserts.Model)
if !ok {
return BadRequest("new model is not a model assertion: %v", newModel.Type())
}
st := c.d.overlord.State()
st.Lock()
defer st.Unlock()
chg, err := devicestateRemodel(st, newModel)
if err != nil {
return BadRequest("cannot remodel device: %v", err)
}
ensureStateSoon(st)
return AsyncResponse(nil, &Meta{Change: chg.ID()})
}
// getModel gets the current model assertion using the DeviceManager
func getModel(c *Command, r *http.Request, _ *auth.UserState) Response {
opts, err := parseHeadersFormatOptionsFromURL(r.URL.Query())
if err != nil {
return BadRequest(err.Error())
}
st := c.d.overlord.State()
st.Lock()
defer st.Unlock()
devmgr := c.d.overlord.DeviceManager()
model, err := devmgr.Model()
if err == state.ErrNoState {
res := &errorResult{
Message: "no model assertion yet",
Kind: client.ErrorKindAssertionNotFound,
Value: "model",
}
return &resp{
Type: ResponseTypeError,
Result: res,
Status: 404,
}
}
if err != nil {
return InternalError("accessing model failed: %v", err)
}
if opts.jsonResult {
modelJSON := modelAssertJSON{}
modelJSON.Headers = model.Headers()
if !opts.headersOnly {
modelJSON.Body = string(model.Body())
}
return SyncResponse(modelJSON, nil)
}
return AssertResponse([]asserts.Assertion{model}, false)
}
// getSerial gets the current serial assertion using the DeviceManager
func getSerial(c *Command, r *http.Request, _ *auth.UserState) Response {
opts, err := parseHeadersFormatOptionsFromURL(r.URL.Query())
if err != nil {
return BadRequest(err.Error())
}
st := c.d.overlord.State()
st.Lock()
defer st.Unlock()
devmgr := c.d.overlord.DeviceManager()
serial, err := devmgr.Serial()
if err == state.ErrNoState {
res := &errorResult{
Message: "no serial assertion yet",
Kind: client.ErrorKindAssertionNotFound,
Value: "serial",
}
return &resp{
Type: ResponseTypeError,
Result: res,
Status: 404,
}
}
if err != nil {
return InternalError("accessing serial failed: %v", err)
}
if opts.jsonResult {
serialJSON := modelAssertJSON{}
serialJSON.Headers = serial.Headers()
if !opts.headersOnly {
serialJSON.Body = string(serial.Body())
}
return SyncResponse(serialJSON, nil)
}
return AssertResponse([]asserts.Assertion{serial}, false)
}
|
