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messagePersist.go
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messagePersist.go
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package core
import (
"crypto/md5"
"database/sql"
"errors"
"fmt"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
)
var (
MessageStmtInsertMsg = *new(*sql.Stmt)
MessageStmtInsertMsgBody = *new(*sql.Stmt)
MessageStmtInsertRcpt = *new(*sql.Stmt)
MessageStmtInsertMsgRcpt = *new(*sql.Stmt)
MessageStmtInsertMsgHdr = *new(*sql.Stmt)
MessageStmtInsertModuleResult = *new(*sql.Stmt)
MessageStmtPruneBody = *new(*sql.Stmt)
MessageStmtPruneHeader = *new(*sql.Stmt)
MessageStmtPruneMessageResult = *new(*sql.Stmt)
MessageStmtPruneMessageQuota = *new(*sql.Stmt)
MessageStmtPruneMessage = *new(*sql.Stmt)
MessageStmtPruneMessageRecipient = *new(*sql.Stmt)
MessageStmtPruneRecipient = *new(*sql.Stmt)
MessageStmtPruneSession = *new(*sql.Stmt)
messagePersistQueue = make(chan []byte, 100)
)
func messagePersistStart() {
messagePersistStmtPrepare()
messagePersistQueue = make(chan []byte)
in := make(chan []byte)
redisListSubscribe("cluegetter-"+strconv.Itoa(int(instance))+"-message-persist", messagePersistQueue, in)
go messagePersistHandleQueue(in)
if Config.ClueGetter.Archive_Prune_Interval != 0 {
go messagePersistPrune()
} else {
Log.Info("archive-prune-interval set to 0. Not pruning anything.")
}
ticker := time.NewTicker(time.Second * 30)
go func() {
for range ticker.C {
messagePersistCache.prune()
}
}()
}
func messagePersistHandleQueue(queue chan []byte) {
for {
data := <-queue
messagePersistProtoBuf(data)
}
}
func messagePersistProtoBuf(protoBuf []byte) {
defer func() {
if Config.ClueGetter.Exit_On_Panic {
return
}
r := recover()
if r == nil {
return
}
Log.Error("Panic caught in messagePersistProtoBuf(). Recovering. Error: %s", r)
StatsCounters["MessagePanics"].increase(1)
return
}()
msg, err := messagePersistUnmarshalProto(protoBuf)
if err != nil {
panic("unmarshaling error: " + err.Error())
}
messagePersist(msg)
}
func messagePersistUnmarshalProto(protoBuf []byte) (*Proto_Message, error) {
msg := &Proto_Message{}
err := msg.Unmarshal(protoBuf)
if err != nil {
return nil, errors.New("Error unmarshalling message: " + err.Error())
}
return msg, nil
}
func messagePersistStmtPrepare() {
stmt, err := Rdbms.Prepare(`
INSERT INTO message (id, session, date, body_size, body_hash, messageId,
sender_local, sender_domain, rcpt_count, verdict, verdict_msg,
rejectScore, rejectScoreThreshold, tempfailScore, tempfailScoreThreshold
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`)
if err != nil {
Log.Fatal(err)
}
MessageStmtInsertMsg = stmt
MessageStmtInsertMsgBody, err = Rdbms.Prepare(`INSERT INTO message_body(message, sequence, body) VALUES(?, ?, ?)`)
if err != nil {
Log.Fatal(err)
}
MessageStmtInsertRcpt, err = Rdbms.Prepare(`INSERT INTO recipient(local, domain) VALUES(?, ?)
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id)`)
if err != nil {
Log.Fatal(err)
}
MessageStmtInsertMsgRcpt, err = Rdbms.Prepare(`INSERT IGNORE INTO message_recipient(message, recipient, count) VALUES(?, ?,1)
ON DUPLICATE KEY UPDATE count=count+1`)
if err != nil {
Log.Fatal(err)
}
MessageStmtInsertMsgHdr, err = Rdbms.Prepare(`INSERT INTO message_header(message, name, body) VALUES(?, ?, ?)`)
if err != nil {
Log.Fatal(err)
}
MessageStmtInsertModuleResult, err = Rdbms.Prepare(`INSERT INTO message_result (message, module, verdict,
score, weighted_score, duration, determinants) VALUES(?, ?, ?, ?, ?, ?, ?)`)
if err != nil {
Log.Fatal(err)
}
MessageStmtPruneBody, err = Rdbms.Prepare(`
DELETE mb FROM message_body mb
LEFT JOIN message m ON m.id = mb.message
LEFT JOIN session s ON s.id = m.session
WHERE m.date < (? - INTERVAL ? WEEK)
AND s.cluegetter_instance = ?;
`)
if err != nil {
Log.Fatal(err)
}
MessageStmtPruneHeader, err = Rdbms.Prepare(`
DELETE FROM message_header WHERE message IN
(SELECT m.id FROM message m
LEFT JOIN session s ON s.id = m.session
WHERE m.date < (? - INTERVAL ? WEEK) AND
s.cluegetter_instance = ?)
`)
if err != nil {
Log.Fatal(err)
}
MessageStmtPruneMessageResult, err = Rdbms.Prepare(`
DELETE FROM message_result WHERE message IN
(SELECT m.id FROM message m
LEFT JOIN session s ON s.id = m.session
WHERE m.date < (? - INTERVAL ? WEEK) AND
s.cluegetter_instance = ?)
`)
if err != nil {
Log.Fatal(err)
}
MessageStmtPruneMessageQuota, err = Rdbms.Prepare(`
DELETE FROM quota_message WHERE message IN
(SELECT m.id FROM message m
LEFT JOIN session s ON s.id = m.session
WHERE m.date < (? - INTERVAL ? WEEK) AND
s.cluegetter_instance = ?)
`)
if err != nil {
Log.Fatal(err)
}
MessageStmtPruneMessage, err = Rdbms.Prepare(`
DELETE m FROM message m
INNER JOIN session s ON s.id = m.session
WHERE m.date < (? - INTERVAL ? WEEK)
AND s.cluegetter_instance = ?
`)
if err != nil {
Log.Fatal(err)
}
MessageStmtPruneMessageRecipient, err = Rdbms.Prepare(`
DELETE FROM message_recipient WHERE message IN
(SELECT m.id FROM message m
LEFT JOIN session s ON s.id = m.session
WHERE m.date < (? - INTERVAL ? WEEK) AND
s.cluegetter_instance = ?)
`)
if err != nil {
Log.Fatal(err)
}
MessageStmtPruneRecipient, err = Rdbms.Prepare(`
DELETE r FROM recipient r
LEFT JOIN message_recipient mr ON mr.recipient = r.id
WHERE mr.recipient IS NULL AND (1 OR ? OR ? OR ?)
`)
if err != nil {
Log.Fatal(err)
}
MessageStmtPruneSession, err = Rdbms.Prepare(`
DELETE s FROM session s
LEFT JOIN message m ON m.session = s.id
WHERE s.date_connect < (? - INTERVAL ? WEEK)
AND s.cluegetter_instance = ?
AND m.id IS NULL
`)
if err != nil {
Log.Fatal(err)
}
}
func messagePersistPrune() {
ticker := time.NewTicker(time.Duration(Config.ClueGetter.Archive_Prune_Interval) * time.Second)
var prunables = []struct {
stmt *sql.Stmt
descr string
retention float64
}{
{MessageStmtPruneBody, "bodies", Config.ClueGetter.Archive_Retention_Body},
{MessageStmtPruneHeader, "headers", Config.ClueGetter.Archive_Retention_Header},
{MessageStmtPruneMessageResult, "message results", Config.ClueGetter.Archive_Retention_Message_Result},
{MessageStmtPruneMessageQuota, "message-quota relations", Config.ClueGetter.Archive_Retention_Message},
{MessageStmtPruneMessageRecipient, "message-recipient relations", Config.ClueGetter.Archive_Retention_Message},
{MessageStmtPruneMessage, "messages", Config.ClueGetter.Archive_Retention_Message},
{MessageStmtPruneSession, "sessions", Config.ClueGetter.Archive_Retention_Message},
{MessageStmtPruneRecipient, "recipients", Config.ClueGetter.Archive_Retention_Message},
}
WaitForNext:
for {
select {
case <-ticker.C:
t0 := time.Now()
Log.Info("Pruning some old data now")
for _, prunable := range prunables {
if prunable.retention < Config.ClueGetter.Archive_Retention_Safeguard {
Log.Info("Not pruning %s because its retention (%.2f weeks) is lower than the safeguard (%.2f)",
prunable.descr, prunable.retention, Config.ClueGetter.Archive_Retention_Safeguard)
continue
}
tStart := time.Now()
res, err := prunable.stmt.Exec(t0, prunable.retention, instance)
if err != nil {
Log.Error("Could not prune %s: %s", prunable.descr, err.Error())
continue WaitForNext
}
rowCnt, err := res.RowsAffected()
if err != nil {
Log.Error("Error while fetching number of affected rows: ", err)
continue WaitForNext
}
Log.Info("Pruned %d %s in %s", rowCnt, prunable.descr, time.Now().Sub(tStart).String())
}
}
}
}
func messagePersist(msg *Proto_Message) {
sess := *msg.Session
milterSessionPersist(&sess)
var sender_local, sender_domain string
if strings.Index(msg.From, "@") != -1 {
sender_local = strings.Split(msg.From, "@")[0]
sender_domain = strings.Split(msg.From, "@")[1]
} else {
sender_local = msg.From
}
messageIdHdr := ""
for _, v := range msg.Headers {
if strings.EqualFold(v.Key, "Message-Id") {
messageIdHdr = v.Value
}
}
verdictValue := [3]string{"permit", "tempfail", "reject"}
StatsCounters["RdbmsQueries"].increase(1)
sessId := sess.Id
_, err := MessageStmtInsertMsg.Exec(
msg.Id,
string(sessId[:]),
time.Now(),
len(msg.Body),
fmt.Sprintf("%x", md5.Sum(msg.Body)),
messageIdHdr,
sender_local,
sender_domain,
len(msg.Rcpt),
verdictValue[msg.Verdict],
msg.VerdictMsg,
msg.RejectScore,
msg.RejectScoreThreshold,
msg.TempfailScore,
msg.TempfailScoreThreshold,
)
if err != nil {
StatsCounters["RdbmsErrors"].increase(1)
Log.Error(err.Error())
}
if Config.ClueGetter.Archive_Retention_Message_Result > 0 {
messageSaveCheckResults(msg)
}
if Config.ClueGetter.Archive_Retention_Body > 0 {
messageSaveBody(msg)
}
messageSaveRecipients(msg.Rcpt, msg.Id)
if Config.ClueGetter.Archive_Retention_Header > 0 {
messageSaveHeaders(msg)
}
}
func messageSaveCheckResults(msg *Proto_Message) {
for _, result := range msg.CheckResults {
StatsCounters["RdbmsQueries"].increase(1)
_, err := MessageStmtInsertModuleResult.Exec(
msg.Id, result.Module, result.Verdict.String(),
result.Score, result.WeightedScore, result.Duration, result.Determinants)
if err != nil {
StatsCounters["RdbmsErrors"].increase(1)
Log.Error(err.Error())
}
}
}
func messageSaveHeaders(msg *Proto_Message) {
for _, headerPair := range msg.Headers {
StatsCounters["RdbmsQueries"].increase(1)
_, err := MessageStmtInsertMsgHdr.Exec(
msg.Id, headerPair.Key, headerPair.Value)
if err != nil {
StatsCounters["RdbmsErrors"].increase(1)
Log.Error(err.Error())
}
}
}
/**
* Store message in chunks of 65K bytes
*/
func messageSaveBody(msg *Proto_Message) {
for i := 0; (i * 65535) < len(msg.Body); i++ {
StatsCounters["RdbmsQueries"].increase(1)
boundary := (i + 1) * 65535
if boundary > len(msg.Body) {
boundary = len(msg.Body)
}
_, err := MessageStmtInsertMsgBody.Exec(
msg.Id,
i,
msg.Body[(i*65535):boundary],
)
if err != nil {
StatsCounters["RdbmsErrors"].increase(1)
Log.Error(err.Error())
}
}
}
func messageSaveRecipients(recipients []string, msgId string) {
for _, rcpt := range recipients {
var local string
var domain string
if strings.Index(rcpt, "@") != -1 {
local = strings.SplitN(rcpt, "@", 2)[0]
domain = strings.SplitN(rcpt, "@", 2)[1]
} else {
local = rcpt
domain = ""
}
StatsCounters["RdbmsQueries"].increase(1)
res, err := MessageStmtInsertRcpt.Exec(local, domain)
if err != nil {
StatsCounters["RdbmsErrors"].increase(1)
panic("Could not execute MessageStmtInsertRcpt in messageSaveRecipients(). Error: " + err.Error())
}
rcptId, err := res.LastInsertId()
if err != nil {
StatsCounters["RdbmsErrors"].increase(1)
panic("Could not get lastinsertid from MessageStmtInsertRcpt in messageSaveRecipients(). Error: " + err.Error())
}
StatsCounters["RdbmsQueries"].increase(1)
_, err = MessageStmtInsertMsgRcpt.Exec(msgId, rcptId)
if err != nil {
StatsCounters["RdbmsErrors"].increase(1)
panic("Could not get execute MessageStmtInsertMsgRcpt in messageSaveRecipients(). Error: " + err.Error())
}
}
}
func messagePersistInCache(queueId string, msgId string, msg []byte) {
if ok, err := messagePersistCache.Set(queueId, msgId, msg); !ok {
Log.Notice("Could not add message %s to message cache: %s",
queueId, err.Error())
}
}
///////////////////
// Message Cache //
///////////////////
var messagePersistCache = messageCacheNew(5*1024*1024, 512*1024*1024)
type messageCache struct {
sync.RWMutex
cache map[string][]byte
age map[string]int64
msgIdIdx map[string]string
msgIdRevIdx map[string]string
size uint64
maxSize uint64
maxEntrySize uint64
}
func messageCacheNew(maxEntrySize uint64, maxSize uint64) *messageCache {
return &messageCache{
cache: make(map[string][]byte),
age: make(map[string]int64),
msgIdIdx: make(map[string]string),
msgIdRevIdx: make(map[string]string),
size: 0,
maxSize: maxSize,
maxEntrySize: maxEntrySize,
}
}
func (c *messageCache) getByQueueId(queueId string) []byte {
c.RLock()
defer c.RUnlock()
return c.cache[queueId]
}
func (c *messageCache) getByMessageId(msgId string) []byte {
c.RLock()
queueId := c.msgIdIdx[msgId]
protoBuf := c.cache[queueId]
c.RUnlock()
return protoBuf
}
func (c *messageCache) Set(queueId, msgId string, msg []byte) (bool, error) {
size := uint64(len(msg))
if size > c.maxEntrySize {
return false, errors.New(fmt.Sprintf(
"Could not cache item '%s' (size %d). Item is bigger than max entry size %d",
queueId, size, c.maxEntrySize,
))
}
c.Lock()
defer c.Unlock()
if c.size+size > c.maxSize {
return false, errors.New(fmt.Sprintf(
"Could not cache item '%s' (size %d). Total cache size would be exceeded.",
queueId, size,
))
}
if _, exists := c.cache[queueId]; exists {
c._del(queueId)
}
c.msgIdIdx[msgId] = queueId
c.msgIdRevIdx[queueId] = msgId
c.cache[queueId] = msg
c.age[queueId] = time.Now().Unix()
atomic.AddUint64(&c.size, size)
return true, nil
}
func (c *messageCache) _del(id string) {
item, exists := c.cache[id]
if !exists {
return
}
size := len(item)
delete(c.cache, id)
delete(c.age, id)
atomic.AddUint64(&c.size, ^uint64(size-1))
delete(c.msgIdIdx, c.msgIdRevIdx[id])
delete(c.msgIdRevIdx, id)
}
func (c *messageCache) prune() {
if c.size < c.maxSize/2 {
Log.Debug("Skipping pruning of messageCache it's below 50%% (%d/%d) capacity.", c.size, c.maxSize)
return
}
t0 := time.Now()
cutoff := t0.Unix() - 300
prune := make([]string, 0)
c.RLock()
for key, age := range c.age {
if age < cutoff {
prune = append(prune, key)
}
}
c.RUnlock()
Log.Debug("Scanned for prunable message cache items in %s", time.Now().Sub(t0).String())
t0 = time.Now()
if len(prune) == 0 {
goto end
}
c.Lock()
defer c.Unlock()
for _, key := range prune {
c._del(key)
}
end:
Log.Debug("Pruned %d message cache items in %s. It now contains %d items, %d bytes",
len(prune), time.Now().Sub(t0).String(), len(c.cache), c.size)
}