mirror of
https://github.com/token2/snapd.git
synced 2026-03-13 11:15:47 -07:00
cae1508d0a
* they now can take a *doOptions uniformly to control timeout: - nil or absence uses the defaults - there's a predefined doNoTimeoutAndRetry to get no timeout * there's a simple and a full parameter only variant of doSync and doAsync * use rawWithTimeout in the places that were using raw but setting a timeout via context themselves
73 lines
1.9 KiB
Go
73 lines
1.9 KiB
Go
// -*- Mode: Go; indent-tabs-mode: t -*-
|
|
|
|
/*
|
|
* Copyright (C) 2016 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 client
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"regexp"
|
|
|
|
"golang.org/x/xerrors"
|
|
)
|
|
|
|
// Icon represents the icon of an installed snap
|
|
type Icon struct {
|
|
Filename string
|
|
Content []byte
|
|
}
|
|
|
|
var contentDispositionMatcher = regexp.MustCompile(`attachment; filename=(.+)`).FindStringSubmatch
|
|
|
|
// Icon returns the Icon belonging to an installed snap
|
|
func (c *Client) Icon(pkgID string) (*Icon, error) {
|
|
const errPrefix = "cannot retrieve icon"
|
|
|
|
response, cancel, err := c.rawWithTimeout(context.Background(), "GET", fmt.Sprintf("/v2/icons/%s/icon", pkgID), nil, nil, nil, nil)
|
|
if err != nil {
|
|
fmt := "%s: failed to communicate with server: %w"
|
|
return nil, xerrors.Errorf(fmt, errPrefix, err)
|
|
}
|
|
defer cancel()
|
|
defer response.Body.Close()
|
|
|
|
if response.StatusCode != 200 {
|
|
return nil, fmt.Errorf("%s: Not Found", errPrefix)
|
|
}
|
|
|
|
matches := contentDispositionMatcher(response.Header.Get("Content-Disposition"))
|
|
|
|
if matches == nil || matches[1] == "" {
|
|
return nil, fmt.Errorf("%s: cannot determine filename", errPrefix)
|
|
}
|
|
|
|
content, err := ioutil.ReadAll(response.Body)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("%s: %s", errPrefix, err)
|
|
}
|
|
|
|
icon := &Icon{
|
|
Filename: matches[1],
|
|
Content: content,
|
|
}
|
|
|
|
return icon, nil
|
|
}
|