74 lines
2.4 KiB
Go
74 lines
2.4 KiB
Go
// Copyright 2015 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package omaha
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import (
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"encoding/xml"
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)
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// Update is a manifest for a single omaha update response. It extends
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// the standard Manifest protocol element with the application id and
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// previous version which are used to match against the update request.
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// A blank previous version indicates this update can be applied to any
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// existing install. The application id may not be blank.
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type Update struct {
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XMLName xml.Name `xml:"update" json:"-"`
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ID string `xml:"appid,attr"`
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PreviousVersion string `xml:"previousversion,attr,omitempty"`
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URL URL `xml:"urls>url"`
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Manifest
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// The delta_okay request attribute is an update_engine extension.
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RespectDeltaOK bool `xml:"respect_delta_okay,attr,omitempty"`
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}
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// The URL attribute in Update is currently assumed to be a relative
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// path which may be found on multiple mirrors. A server using this is
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// expected to know the mirror prefix(s) it can give the client.
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func (u *Update) URLs(prefixes []string) []*URL {
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urls := make([]*URL, len(prefixes))
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for i, prefix := range prefixes {
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urls[i] = &URL{CodeBase: prefix + u.URL.CodeBase}
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}
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return urls
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}
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// Updater provides a common interface for any backend that can respond to
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// update requests made to an Omaha server.
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type Updater interface {
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CheckApp(req *Request, app *AppRequest) error
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CheckUpdate(req *Request, app *AppRequest) (*Update, error)
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Event(req *Request, app *AppRequest, event *EventRequest)
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Ping(req *Request, app *AppRequest)
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}
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type UpdaterStub struct{}
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func (u UpdaterStub) CheckApp(req *Request, app *AppRequest) error {
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return nil
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}
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func (u UpdaterStub) CheckUpdate(req *Request, app *AppRequest) (*Update, error) {
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return nil, NoUpdate
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}
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func (u UpdaterStub) Event(req *Request, app *AppRequest, event *EventRequest) {
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return
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}
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func (u UpdaterStub) Ping(req *Request, app *AppRequest) {
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return
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}
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