forked from facebookincubator/nvdtools
/
vulnerability.go
80 lines (69 loc) · 2.35 KB
/
vulnerability.go
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// Copyright (c) Facebook, Inc. and its affiliates.
//
// 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 api
import (
"context"
"encoding/json"
"fmt"
"github.com/facebookincubator/flog"
"github.com/facebookincubator/nvdtools/providers/fireeye/schema"
"github.com/facebookincubator/nvdtools/providers/lib/client"
"github.com/facebookincubator/nvdtools/providers/lib/runner"
"github.com/facebookincubator/nvdtools/stats"
"golang.org/x/sync/errgroup"
)
// FetchAllVulnerabilities will fetch all vulnerabilities with specified parameters
func (c *Client) FetchAllVulnerabilities(ctx context.Context, since int64) (<-chan runner.Convertible, error) {
parameters := newParametersSince(since)
if err := parameters.validate(); err != nil {
return nil, err
}
output := make(chan runner.Convertible)
eg, ctx := errgroup.WithContext(ctx)
for _, params := range parameters.batchBy(ninetyDays) {
params := params
eg.Go(func() error {
flog.Infof("Fetching: %s\n", params)
vs, err := c.fetchVulnerabilities(ctx, params)
if err != nil {
return client.StopOrContinue(fmt.Errorf("error while fetching %s: %v", params, err))
}
numVulns := len(vs)
flog.Infof("Adding %d vulns\n", numVulns)
stats.IncrementCounterBy("vulnerabilities", int64(numVulns))
for _, v := range vs {
output <- v
}
return nil
})
}
go func() {
if err := eg.Wait(); err != nil {
flog.Errorln(err)
}
close(output)
}()
return output, nil
}
func (c *Client) fetchVulnerabilities(ctx context.Context, parameters timeRangeParameters) ([]*schema.Vulnerability, error) {
resp, err := c.Request(ctx, fmt.Sprintf("/view/vulnerability?%s", parameters.query()))
if err != nil {
return nil, err
}
var vulnerabilities []*schema.Vulnerability
if err := json.NewDecoder(resp).Decode(&vulnerabilities); err != nil {
return nil, err
}
return vulnerabilities, nil
}