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Merge pull request #172 from future-architect/ubuntu_bakusoku
High speed scan on Ubuntu/Debian
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@@ -3,6 +3,8 @@ vuls | |
*.txt | ||
*.json | ||
*.sqlite3 | ||
*.db | ||
tags | ||
.gitmodules | ||
coverage.out | ||
issues/ | ||
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@@ -0,0 +1,173 @@ | ||
/* Vuls - Vulnerability Scanner | ||
Copyright (C) 2016 Future Architect, Inc. Japan. | ||
This program is free software: you can redistribute it and/or modify | ||
it under the terms of the GNU General Public License as published by | ||
the Free Software Foundation, either version 3 of the License, or | ||
(at your option) any later version. | ||
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/>. | ||
*/ | ||
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package cache | ||
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import ( | ||
"encoding/json" | ||
"fmt" | ||
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"github.com/Sirupsen/logrus" | ||
"github.com/boltdb/bolt" | ||
"github.com/future-architect/vuls/util" | ||
) | ||
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// Bolt holds a pointer of bolt.DB | ||
// boltdb is used to store a cache of Changelogs of Ubuntu/Debian | ||
type Bolt struct { | ||
Path string | ||
Log *logrus.Entry | ||
db *bolt.DB | ||
} | ||
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// SetupBolt opens a boltdb and creates a meta bucket if not exists. | ||
func SetupBolt(path string, l *logrus.Entry) error { | ||
l.Infof("Open boltDB: %s", path) | ||
db, err := bolt.Open(path, 0600, nil) | ||
if err != nil { | ||
return err | ||
} | ||
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b := Bolt{ | ||
Path: path, | ||
Log: l, | ||
db: db, | ||
} | ||
if err = b.createBucketIfNotExists(metabucket); err != nil { | ||
return err | ||
} | ||
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DB = b | ||
return nil | ||
} | ||
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// Close a db. | ||
func (b Bolt) Close() error { | ||
if b.db == nil { | ||
return nil | ||
} | ||
return b.db.Close() | ||
} | ||
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// CreateBucketIfNotExists creates a buket that is specified by arg. | ||
func (b *Bolt) createBucketIfNotExists(name string) error { | ||
return b.db.Update(func(tx *bolt.Tx) error { | ||
_, err := tx.CreateBucketIfNotExists([]byte(name)) | ||
if err != nil { | ||
return fmt.Errorf("Failed to create bucket: %s", err) | ||
} | ||
return nil | ||
}) | ||
} | ||
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// GetMeta gets a Meta Information os the servername to boltdb. | ||
func (b Bolt) GetMeta(serverName string) (meta Meta, found bool, err error) { | ||
err = b.db.View(func(tx *bolt.Tx) error { | ||
bkt := tx.Bucket([]byte(metabucket)) | ||
v := bkt.Get([]byte(serverName)) | ||
if len(v) == 0 { | ||
found = false | ||
return nil | ||
} | ||
if e := json.Unmarshal(v, &meta); e != nil { | ||
return e | ||
} | ||
found = true | ||
return nil | ||
}) | ||
return | ||
} | ||
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// EnsureBuckets puts a Meta information and create a buket that holds changelogs. | ||
func (b Bolt) EnsureBuckets(meta Meta) error { | ||
jsonBytes, err := json.Marshal(meta) | ||
if err != nil { | ||
return fmt.Errorf("Failed to marshal to JSON: %s", err) | ||
} | ||
return b.db.Update(func(tx *bolt.Tx) error { | ||
b.Log.Debugf("Put to meta: %s", meta.Name) | ||
bkt := tx.Bucket([]byte(metabucket)) | ||
if err := bkt.Put([]byte(meta.Name), jsonBytes); err != nil { | ||
return err | ||
} | ||
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// re-create a bucket (bucket name: servername) | ||
bkt = tx.Bucket([]byte(meta.Name)) | ||
if bkt != nil { | ||
b.Log.Debugf("Delete bucket: %s", meta.Name) | ||
if err := tx.DeleteBucket([]byte(meta.Name)); err != nil { | ||
return err | ||
} | ||
b.Log.Debugf("Bucket deleted: %s", meta.Name) | ||
} | ||
b.Log.Debugf("Create bucket: %s", meta.Name) | ||
if _, err := tx.CreateBucket([]byte(meta.Name)); err != nil { | ||
return err | ||
} | ||
b.Log.Debugf("Bucket created: %s", meta.Name) | ||
return nil | ||
}) | ||
} | ||
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// PrettyPrint is for debuging | ||
func (b Bolt) PrettyPrint(meta Meta) error { | ||
return b.db.View(func(tx *bolt.Tx) error { | ||
bkt := tx.Bucket([]byte(metabucket)) | ||
v := bkt.Get([]byte(meta.Name)) | ||
b.Log.Debugf("key:%s, value:%s", meta.Name, v) | ||
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bkt = tx.Bucket([]byte(meta.Name)) | ||
c := bkt.Cursor() | ||
for k, v := c.First(); k != nil; k, v = c.Next() { | ||
b.Log.Debugf("key:%s, len: %d, %s...", | ||
k, len(v), util.Truncate(string(v), 30)) | ||
} | ||
return nil | ||
}) | ||
} | ||
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// GetChangelog get the changelgo of specified packName from the Bucket | ||
func (b Bolt) GetChangelog(servername, packName string) (changelog string, err error) { | ||
err = b.db.View(func(tx *bolt.Tx) error { | ||
bkt := tx.Bucket([]byte(servername)) | ||
if bkt == nil { | ||
return fmt.Errorf("Faild to get Bucket: %s", servername) | ||
} | ||
v := bkt.Get([]byte(packName)) | ||
if v == nil { | ||
changelog = "" | ||
return nil | ||
} | ||
changelog = string(v) | ||
return nil | ||
}) | ||
return | ||
} | ||
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// PutChangelog put the changelgo of specified packName into the Bucket | ||
func (b Bolt) PutChangelog(servername, packName, changelog string) error { | ||
return b.db.Update(func(tx *bolt.Tx) error { | ||
bkt := tx.Bucket([]byte(servername)) | ||
if bkt == nil { | ||
return fmt.Errorf("Faild to get Bucket: %s", servername) | ||
} | ||
if err := bkt.Put([]byte(packName), []byte(changelog)); err != nil { | ||
return err | ||
} | ||
return nil | ||
}) | ||
} |
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