clair/updater/fetchers.go
2015-11-13 14:11:28 -05:00

65 lines
1.8 KiB
Go

// Copyright 2015 clair 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 updater
import (
"github.com/coreos/clair/database"
"github.com/coreos/clair/utils/types"
)
var fetchers = make(map[string]Fetcher)
// Fetcher represents anything that can fetch vulnerabilities.
type Fetcher interface {
FetchUpdate() (FetcherResponse, error)
}
// FetcherResponse represents the sum of results of an update.
type FetcherResponse struct {
FlagName string
FlagValue string
Notes []string
Vulnerabilities []FetcherVulnerability
}
// FetcherVulnerability represents an individual vulnerability processed from
// an update.
type FetcherVulnerability struct {
ID string
Link string
Description string
Priority types.Priority
FixedIn []*database.Package
}
// RegisterFetcher makes a Fetcher available by the provided name.
// If Register is called twice with the same name or if driver is nil,
// it panics.
func RegisterFetcher(name string, f Fetcher) {
if name == "" {
panic("updater: could not register a Fetcher with an empty name")
}
if f == nil {
panic("updater: could not register a nil Fetcher")
}
if _, dup := fetchers[name]; dup {
panic("updater: RegisterFetcher called twice for " + name)
}
fetchers[name] = f
}