65 lines
1.9 KiB
Go
65 lines
1.9 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 (
|
|
"sync"
|
|
|
|
"github.com/coreos/clair/database"
|
|
)
|
|
|
|
var metadataFetchers = make(map[string]MetadataFetcher)
|
|
|
|
type VulnerabilityWithLock struct {
|
|
*database.Vulnerability
|
|
Lock sync.Mutex
|
|
}
|
|
|
|
// MetadataFetcher
|
|
type MetadataFetcher interface {
|
|
// Load runs right before the Updater calls AddMetadata for each vulnerabilities.
|
|
Load(database.Datastore) error
|
|
|
|
// AddMetadata adds metadata to the given database.Vulnerability.
|
|
// It is expected that the fetcher uses .Lock.Lock() when manipulating the Metadata map.
|
|
AddMetadata(*VulnerabilityWithLock) error
|
|
|
|
// Unload runs right after the Updater finished calling AddMetadata for every vulnerabilities.
|
|
Unload()
|
|
|
|
// Clean deletes any allocated resources.
|
|
// It is invoked when Clair stops.
|
|
Clean()
|
|
}
|
|
|
|
// 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 RegisterMetadataFetcher(name string, f MetadataFetcher) {
|
|
if name == "" {
|
|
panic("updater: could not register a MetadataFetcher with an empty name")
|
|
}
|
|
|
|
if f == nil {
|
|
panic("updater: could not register a nil MetadataFetcher")
|
|
}
|
|
|
|
if _, dup := fetchers[name]; dup {
|
|
panic("updater: RegisterMetadataFetcher called twice for " + name)
|
|
}
|
|
|
|
metadataFetchers[name] = f
|
|
}
|