func main() {
flag.Parse()
var err error
dkimConf, err = dkim.NewConf(*dkimD, *dkimS)
if err != nil {
log.Fatalf("DKIM configuration error: %v", err)
}
privKey, err = ioutil.ReadFile(*privKeyFile)
if err != nil {
log.Fatalf("Couldn't read private key: %v", err)
}
_, err = dkim.New(dkimConf, privKey)
if err != nil {
log.Fatalf("DKIM error: %v", err)
}
server := &smtpd.Server{
WelcomeMessage: *welcomeMsg,
Handler: handler,
}
server.ListenAndServe(*inAddr)
}
func dkimSign(config *Config, message string) (string, error) {
conf, err := dkim.NewConf(config.DKIMDomain, config.DKIMSelector)
if err != nil {
return "", err
}
dkim, err := dkim.New(conf, config.DKIMPrivatePEM)
if err != nil {
return "", err
}
signed, err := dkim.Sign([]byte(message))
if err != nil {
return "", err
}
return string(signed), nil
}
func main() {
flag.Parse()
keyFile, err := ioutil.ReadFile(*privateKey)
if err != nil {
log.Fatal(err)
}
key, err := ioutil.ReadFile(*dkimKey)
if err != nil {
log.Fatal(err)
}
dc, err := dkim.NewConf("lavaboom.com", "mailer")
if err != nil {
log.Fatal(err)
}
dk, err := dkim.New(dc, key)
if err != nil {
log.Fatal(err)
}
session, err := r.Connect(r.ConnectOpts{
Address: *rethinkAddress,
Database: *rethinkDatabase,
})
if err != nil {
log.Fatal(err)
}
keyring := openpgp.EntityList{}
// This is just retarded
parts := strings.Split(string(keyFile), "-----\n-----")
for n, part := range parts {
if n != 0 {
part = "-----" + part
}
if n != len(parts)-1 {
part += "-----"
}
k1, err := openpgp.ReadArmoredKeyRing(strings.NewReader(part))
if err != nil {
log.Fatal(err)
}
keyring = append(keyring, k1...)
}
http.HandleFunc("/incoming", func(w http.ResponseWriter, req *http.Request) {
body, err := ioutil.ReadAll(req.Body)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
var event struct {
Email string `json:"email"`
Account string `json:"account"`
}
if err := json.Unmarshal(body, &event); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
cursor, err := r.Table("emails").Get(event.Email).Run(session)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
defer cursor.Close()
var email *models.Email
if err := cursor.One(&email); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
input := strings.NewReader(email.Body)
result, err := armor.Decode(input)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
md, err := openpgp.ReadMessage(result.Body, keyring, nil, nil)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
contents, err := ioutil.ReadAll(md.UnverifiedBody)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
input = strings.NewReader(email.Manifest)
result, err = armor.Decode(input)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
md, err = openpgp.ReadMessage(result.Body, keyring, nil, nil)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
rawman, err := ioutil.ReadAll(md.UnverifiedBody)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
manifest, err := man.Parse(rawman)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
to := []string{}
for _, x := range manifest.To {
to = append(to, x.String())
}
var contentType string
for _, part := range manifest.Parts {
if part.ID == "body" {
contentType = part.ContentType
}
}
if contentType == "" {
contentType = manifest.ContentType
}
m1 := strings.Replace(`From: `+manifest.From.String()+`
To: `+*grooveAddress+`
MIME-Version: 1.0
Message-ID: <`+uniuri.NewLen(32)+`@lavaboom.com>
Content-Type: `+contentType+`
Content-Transfer-Encoding: quoted-printable
Subject: `+quotedprintable.EncodeToString([]byte(manifest.Subject))+`
`+quotedprintable.EncodeToString(contents), "\n", "\r\n", -1)
signed, err := dk.Sign([]byte(m1))
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
if err := smtp.SendMail(*forwardingServer, nil, manifest.From.Address, []string{*grooveAddress}, signed); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
log.Printf("Forwarded email from %s with title %s", manifest.From.String(), manifest.Subject)
})
http.ListenAndServe(":8000", nil)
}
func process(item interface{}, queue string) {
email := item.(email.Email)
fmt.Printf("got %s on queue %s\n", email, queue)
m := gomail.NewMessage()
m.SetHeader("From", email.From)
//m.SetHeader("To", "*****@*****.**", "*****@*****.**")
// m.SetHeader("To", "Luca Cervasio <*****@*****.**>")
m.SetHeader("To", email.To)
//m.SetAddressHeader("Cc", "*****@*****.**", "Dan")
m.SetHeader("Subject", email.Subject)
m.SetHeader("Message-ID", messageId())
// m.SetHeader("Precedence", "bulk")
// m.SetHeader("List-Unsubscribe", "http://asdasd")
m.SetBody("text/plain", email.Body)
// m.SetBody("text/html", email.Body)
// m.AddAlternative("text/plain", email.Body)
//m.Attach("/home/Alex/lolcat.jpg")
// converto l'email in []bytes
var b bytes.Buffer
m.WriteTo(&b)
byt := b.Bytes()
// firmo il messaggio con DKIM
var privateKey []byte
var domain string
if email.From == "*****@*****.**" {
privateKey, _ = ioutil.ReadFile("dkim-private_spensale.pem")
domain = "spensale.it"
} else {
privateKey, _ = ioutil.ReadFile("dkim-private_moonar.pem")
domain = "moonar.it"
}
conf, _ := dkim.NewConf(domain, "mail")
d, _ := dkim.New(conf, privateKey)
signed, err := d.Sign(byt)
if err != nil {
panic(err)
}
// mando il messaggio firmato a postfix
cl, err2 := smtp.Dial("localhost:25")
if err2 != nil {
log.Fatal(err)
}
defer cl.Close()
// Set the sender and recipient.
cl.Mail(email.From)
cl.Rcpt(email.To)
// cl.Rcpt("*****@*****.**")
// Send the email body.
wc, err := cl.Data()
if err != nil {
log.Fatal(err)
}
defer wc.Close()
buf := bytes.NewBufferString(string(signed))
if _, err = buf.WriteTo(wc); err != nil {
log.Fatal(err)
}
}
func StartQueue(config *shared.Flags) {
// Initialize a new logger
log := logrus.New()
if config.LogFormatterType == "text" {
log.Formatter = &logrus.TextFormatter{
ForceColors: config.ForceColors,
}
} else if config.LogFormatterType == "json" {
log.Formatter = &logrus.JSONFormatter{}
}
log.Level = logrus.DebugLevel
// Create a new header encoder
he := quotedprintable.Q.NewHeaderEncoder("utf-8")
// Initialize the database connection
session, err := gorethink.Connect(gorethink.ConnectOpts{
Address: config.RethinkAddress,
AuthKey: config.RethinkKey,
MaxIdle: 10,
Timeout: time.Second * 10,
})
if err != nil {
log.WithFields(logrus.Fields{
"error": err.Error(),
}).Fatal("Unable to connect to RethinkDB")
}
// Create a new producer
consumer, err := nsq.NewConsumer("send_email", "receive", nsq.NewConfig())
if err != nil {
log.WithFields(logrus.Fields{
"error": err.Error(),
}).Fatal("Unable to create a consumer")
}
// Connect to NSQ
producer, err := nsq.NewProducer(config.NSQDAddress, nsq.NewConfig())
if err != nil {
log.WithFields(logrus.Fields{
"error": err.Error(),
}).Fatal("Unable to connect to NSQd")
}
// Load a DKIM signer
var dkimSigner map[string]*dkim.DKIM
if config.DKIMKey != "" {
dkimSigner = map[string]*dkim.DKIM{}
key, err := ioutil.ReadFile(config.DKIMKey)
if err != nil {
log.WithFields(logrus.Fields{
"error": err.Error(),
}).Fatal("Unable to read DKIM private key")
}
for domain, _ := range domains {
dkimConf, err := dkim.NewConf(domain, config.DKIMSelector)
if err != nil {
log.WithFields(logrus.Fields{
"error": err.Error(),
}).Fatal("Unable to create a new DKIM conf object")
}
dk, err := dkim.New(dkimConf, key)
if err != nil {
log.WithFields(logrus.Fields{
"error": err.Error(),
}).Fatal("Unable to create a new DKIM signer")
}
dkimSigner[domain] = dk
}
}
consumer.AddConcurrentHandlers(nsq.HandlerFunc(func(msg *nsq.Message) error {
var id string
if err := json.Unmarshal(msg.Body, &id); err != nil {
return err
}
// Get the email from the database
cursor, err := gorethink.Db(config.RethinkDatabase).Table("emails").Get(id).Run(session)
if err != nil {
return err
}
defer cursor.Close()
var email *models.Email
if err := cursor.One(&email); err != nil {
return err
}
// Get the thread
cursor, err = gorethink.Db(config.RethinkDatabase).Table("threads").Get(email.Thread).Run(session)
if err != nil {
return err
}
defer cursor.Close()
var thread *models.Thread
if err := cursor.One(&thread); err != nil {
return err
}
// Get the proper In-Reply-To
hasInReplyTo := false
inReplyTo := ""
// Fetch received emails in the thread
cursor, err = gorethink.Db(config.RethinkDatabase).Table("emails").GetAllByIndex("threadStatus", []interface{}{
thread.ID,
"received",
}).Pluck("date_created", "message_id", "from").OrderBy(gorethink.Desc(gorethink.Row.Field("date_created"))).
Filter(func(row gorethink.Term) gorethink.Term {
return gorethink.Expr(email.To).Contains(row.Field("from"))
}).Limit(1).Run(session)
if err != nil {
return err
}
defer cursor.Close()
var emid []*models.Email
if err := cursor.All(&emid); err != nil {
return err
}
if len(emid) == 1 {
hasInReplyTo = true
inReplyTo = emid[0].MessageID
}
// Fetch the files
var files []*models.File
if email.Files != nil && len(email.Files) > 0 {
filesList := []interface{}{}
for _, v := range email.Files {
filesList = append(filesList, v)
}
cursor, err = gorethink.Db(config.RethinkDatabase).Table("files").GetAll(filesList...).Run(session)
if err != nil {
return err
}
defer cursor.Close()
if err := cursor.All(&files); err != nil {
return err
}
} else {
files = []*models.File{}
}
// Fetch the owner
cursor, err = gorethink.Db(config.RethinkDatabase).Table("accounts").Get(email.Owner).Run(session)
if err != nil {
return err
}
defer cursor.Close()
var account *models.Account
if err := cursor.One(&account); err != nil {
return err
}
// Declare a contents variable
contents := ""
ctxFrom := email.From
// Check if charset is set
if !strings.Contains(email.ContentType, "; charset=") {
email.ContentType += "; charset=utf-8"
}
if email.Kind == "raw" {
// Encode the email
if files == nil || len(files) == 0 {
buffer := &bytes.Buffer{}
context := &rawSingleContext{
From: ctxFrom,
CombinedTo: strings.Join(email.To, ", "),
MessageID: email.MessageID,
HasInReplyTo: hasInReplyTo,
InReplyTo: inReplyTo,
Subject: he.Encode(email.Name),
ContentType: email.ContentType,
Body: quotedprintable.EncodeToString([]byte(email.Body)),
Date: email.DateCreated.Format(time.RubyDate),
}
if email.CC != nil && len(email.CC) > 0 {
context.HasCC = true
context.CombinedCC = strings.Join(email.CC, ", ")
}
if email.ReplyTo != "" {
context.HasReplyTo = true
context.ReplyTo = email.ReplyTo
}
if err := rawSingleTemplate.Execute(buffer, context); err != nil {
return err
}
contents = buffer.String()
} else {
buffer := &bytes.Buffer{}
emailFiles := []*emailFile{}
for _, file := range files {
emailFiles = append(emailFiles, &emailFile{
Encoding: file.Encoding,
Name: file.Name,
Body: base64.StdEncoding.EncodeToString([]byte(file.Data)),
})
}
context := &rawMultiContext{
From: ctxFrom,
CombinedTo: strings.Join(email.To, ", "),
MessageID: email.MessageID,
HasInReplyTo: hasInReplyTo,
InReplyTo: inReplyTo,
Boundary1: uniuri.NewLen(20),
Subject: he.Encode(email.Name),
ContentType: email.ContentType,
Body: quotedprintable.EncodeToString([]byte(email.Body)),
Files: emailFiles,
Date: email.DateCreated.Format(time.RubyDate),
}
if email.CC != nil && len(email.CC) > 0 {
context.HasCC = true
context.CombinedCC = strings.Join(email.CC, ", ")
}
if email.ReplyTo != "" {
context.HasReplyTo = true
context.ReplyTo = email.ReplyTo
}
if err := rawMultiTemplate.Execute(buffer, context); err != nil {
return err
}
contents = buffer.String()
}
// Fetch owner's account
cursor, err = gorethink.Db(config.RethinkDatabase).Table("accounts").Get(email.Owner).Run(session)
if err != nil {
return err
}
defer cursor.Close()
var account *models.Account
if err := cursor.One(&account); err != nil {
return err
}
// Get owner's key
var key *models.Key
if account.PublicKey != "" {
cursor, err = gorethink.Db(config.RethinkDatabase).Table("keys").Get(account.PublicKey).Run(session)
if err != nil {
return err
}
defer cursor.Close()
if err := cursor.One(&key); err != nil {
return err
}
} else {
cursor, err = gorethink.Db(config.RethinkDatabase).Table("keys").GetAllByIndex("owner", account.ID).Run(session)
if err != nil {
return err
}
defer cursor.Close()
var keys []*models.Key
if err := cursor.All(&keys); err != nil {
return err
}
key = keys[0]
}
// Parse the key
keyring, err := openpgp.ReadArmoredKeyRing(strings.NewReader(key.Key))
if err != nil {
return err
}
// From, to and cc parsing
fromAddr, err := mail.ParseAddress(email.From)
if err != nil {
fromAddr = &mail.Address{
Address: email.From,
}
}
toAddr, err := mail.ParseAddressList(strings.Join(email.To, ", "))
if err != nil {
toAddr = []*mail.Address{}
for _, addr := range email.To {
toAddr = append(toAddr, &mail.Address{
Address: addr,
})
}
}
// Prepare a new manifest
manifest := &man.Manifest{
Version: semver.Version{
Major: 1,
},
From: fromAddr,
To: toAddr,
Subject: he.Encode(email.Name),
Parts: []*man.Part{},
}
if email.CC != nil && len(email.CC) > 0 {
ccAddr, nil := mail.ParseAddressList(strings.Join(email.CC, ", "))
if err != nil {
ccAddr = []*mail.Address{}
for _, addr := range email.CC {
ccAddr = append(ccAddr, &mail.Address{
Address: addr,
})
}
}
manifest.CC = ccAddr
}
// Encrypt and hash the body
encryptedBody, err := shared.EncryptAndArmor([]byte(email.Body), keyring)
if err != nil {
return err
}
hash := sha256.Sum256([]byte(email.Body))
// Append body to the parts
manifest.Parts = append(manifest.Parts, &man.Part{
ID: "body",
Hash: hex.EncodeToString(hash[:]),
ContentType: email.ContentType,
Size: len(email.Body),
})
// Encrypt the attachments
for _, file := range files {
// Encrypt the attachment
cipher, err := shared.EncryptAndArmor([]byte(file.Data), keyring)
if err != nil {
return err
}
// Hash it
hash := sha256.Sum256([]byte(file.Data))
// Generate a random ID
id := uniuri.NewLen(20)
// Push the attachment into the manifest
manifest.Parts = append(manifest.Parts, &man.Part{
ID: id,
Hash: hex.EncodeToString(hash[:]),
Filename: file.Name,
ContentType: file.Encoding,
Size: len(file.Data),
})
// Replace the file in database
err = gorethink.Db(config.RethinkDatabase).Table("files").Get(file.ID).Replace(&models.File{
Resource: models.Resource{
ID: file.ID,
DateCreated: file.DateCreated,
DateModified: time.Now(),
Name: id + ".pgp",
Owner: account.ID,
},
Encrypted: models.Encrypted{
Encoding: "application/pgp-encrypted",
Data: string(cipher),
},
}).Exec(session)
if err != nil {
return err
}
}
// Encrypt the manifest
strManifest, err := man.Write(manifest)
if err != nil {
return err
}
encryptedManifest, err := shared.EncryptAndArmor(strManifest, keyring)
if err != nil {
return err
}
err = gorethink.Db(config.RethinkDatabase).Table("emails").Get(email.ID).Replace(&models.Email{
Resource: models.Resource{
ID: email.ID,
DateCreated: email.DateCreated,
DateModified: time.Now(),
Name: "Encrypted message (" + email.ID + ")",
Owner: account.ID,
},
Kind: "manifest",
From: email.From,
To: email.To,
CC: email.CC,
BCC: email.BCC,
Files: email.Files,
Manifest: string(encryptedManifest),
Body: string(encryptedBody),
Thread: email.Thread,
MessageID: email.MessageID,
}).Exec(session)
if err != nil {
return err
}
} else if email.Kind == "pgpmime" {
buffer := &bytes.Buffer{}
context := &pgpContext{
From: ctxFrom,
CombinedTo: strings.Join(email.To, ", "),
MessageID: email.MessageID,
HasInReplyTo: hasInReplyTo,
InReplyTo: inReplyTo,
Subject: email.Name,
ContentType: email.ContentType,
Body: email.Body,
Date: email.DateCreated.Format(time.RubyDate),
}
if email.CC != nil && len(email.CC) > 0 {
context.HasCC = true
context.CombinedCC = strings.Join(email.CC, ", ")
}
if email.ReplyTo != "" {
context.HasReplyTo = true
context.ReplyTo = email.ReplyTo
}
if err := pgpTemplate.Execute(buffer, context); err != nil {
return err
}
contents = buffer.String()
} else if email.Kind == "manifest" {
if files == nil || len(files) == 0 {
buffer := &bytes.Buffer{}
context := &manifestSingleContext{
From: ctxFrom,
CombinedTo: strings.Join(email.To, ", "),
MessageID: email.MessageID,
HasInReplyTo: hasInReplyTo,
InReplyTo: inReplyTo,
Subject: he.Encode(email.Name),
Boundary1: uniuri.NewLen(20),
Boundary2: uniuri.NewLen(20),
ID: email.ID,
Body: email.Body,
Manifest: email.Manifest,
SubjectHash: thread.SubjectHash,
Date: email.DateCreated.Format(time.RubyDate),
}
if email.CC != nil && len(email.CC) > 0 {
context.HasCC = true
context.CombinedCC = strings.Join(email.CC, ", ")
}
if email.ReplyTo != "" {
context.HasReplyTo = true
context.ReplyTo = email.ReplyTo
}
if err := manifestSingleTemplate.Execute(buffer, context); err != nil {
return err
}
contents = buffer.String()
} else {
buffer := &bytes.Buffer{}
emailFiles := []*emailFile{}
for _, file := range files {
emailFiles = append(emailFiles, &emailFile{
Encoding: file.Encoding,
Name: file.Name,
Body: file.Data,
})
}
context := &manifestMultiContext{
From: ctxFrom,
CombinedTo: strings.Join(email.To, ", "),
MessageID: email.MessageID,
HasInReplyTo: hasInReplyTo,
InReplyTo: inReplyTo,
Subject: he.Encode(email.Name),
Boundary1: uniuri.NewLen(20),
Boundary2: uniuri.NewLen(20),
ID: email.ID,
Body: email.Body,
Manifest: email.Manifest,
SubjectHash: thread.SubjectHash,
Files: emailFiles,
Date: email.DateCreated.Format(time.RubyDate),
}
if email.CC != nil && len(email.CC) > 0 {
context.HasCC = true
context.CombinedCC = strings.Join(email.CC, ", ")
}
if email.ReplyTo != "" {
context.HasReplyTo = true
context.ReplyTo = email.ReplyTo
}
if err := manifestMultiTemplate.Execute(buffer, context); err != nil {
return err
}
contents = buffer.String()
}
}
recipients := email.To
if email.CC != nil {
recipients = append(recipients, email.CC...)
}
nsqmsg, _ := json.Marshal(map[string]interface{}{
"id": email.ID,
"owner": email.Owner,
})
// Sign the email
if dkimSigner != nil {
parts := strings.Split(email.From, "@")
if len(parts) == 2 {
if _, ok := dkimSigner[parts[1]]; ok {
// Replace newlines with \r\n
contents = strings.Replace(contents, "\n", "\r\n", -1)
// Sign it
data, err := dkimSigner[parts[1]].Sign([]byte(contents))
if err != nil {
log.Print(err)
return err
}
// Replace contents with signed
contents = strings.Replace(string(data), "\r\n", "\n", -1)
}
}
}
if err := smtp.SendMail(config.SMTPAddress, nil, email.From, recipients, []byte(contents)); err != nil {
err := producer.Publish("email_bounced", nsqmsg)
if err != nil {
log.WithFields(logrus.Fields{
"error": err,
}).Error("Unable to publish a bounce msg")
}
} else {
err := producer.Publish("email_delivery", nsqmsg)
if err != nil {
log.WithFields(logrus.Fields{
"error": err,
}).Error("Unable to publish a bounce msg")
}
}
err = gorethink.Db(config.RethinkDatabase).Table("emails").Get(email.ID).Update(map[string]interface{}{
"status": "sent",
}).Exec(session)
if err != nil {
log.WithFields(logrus.Fields{
"error": err,
}).Error("Unable to mark an email as sent")
}
msg.Finish()
return nil
}), 10)
if err := consumer.ConnectToNSQLookupd(config.LookupdAddress); err != nil {
log.WithFields(logrus.Fields{
"error": err,
}).Fatal("Unable to connect to nsqlookupd")
}
log.Info("Connected to NSQ and awaiting data")
}
func main() {
flag.Parse()
key, err := ioutil.ReadFile(*dkimKey)
if err != nil {
log.Fatal(err)
}
dc, err := dkim.NewConf("lavaboom.com", "mailer")
if err != nil {
log.Fatal(err)
}
dk, err := dkim.New(dc, key)
if err != nil {
log.Fatal(err)
}
session, err := r.Connect(r.ConnectOpts{
Address: *rethinkAddress,
Database: *rethinkDatabase,
})
if err != nil {
log.Fatal(err)
}
r.DB(*rethinkDatabase).TableCreate("onboarding").Exec(session)
r.Table("onboarding").IndexCreate("time").Exec(session)
var stateLock sync.Mutex
// Load the hub state from RethinkDB
cursor, err := r.Table("onboarding").OrderBy(r.OrderByOpts{
Index: "time",
}).Run(session)
if err != nil {
log.Fatal(err)
}
defer cursor.Close()
var state State
if err := cursor.All(&state); err != nil {
log.Fatal(err)
}
sort.Sort(state)
log.Printf("%+v", state)
change := make(chan struct{})
go func() {
for {
log.Print("hub loop")
stateLock.Lock()
timersToDelete := []int{}
for id, timer := range state {
if timer.Time.Before(time.Now()) {
email := &bytes.Buffer{}
if err := emtpl.Execute(email, map[string]interface{}{
"from": timer.From,
"to": timer.To,
"subject": timer.Subject,
"body": quotedprintable.EncodeToString([]byte(timer.Body)),
"message_id": "onboarding-" + uniuri.NewLen(uniuri.UUIDLen) + "@lavaboom.com",
"date": time.Now().Format(time.RubyDate),
}); err != nil {
log.Print(err)
continue
}
body := bytes.Replace(email.Bytes(), []byte("\n"), []byte("\r\n"), -1)
sbody, err := dk.Sign(body)
if err != nil {
log.Print(err)
continue
}
if err := smtp.SendMail(*smtpdAddress, nil, timer.From, timer.To, sbody); err != nil {
log.Print(err)
continue
}
// Delete it from RDB and the state
r.Table("onboarding").Get(timer.ID).Delete().Exec(session)
timersToDelete = append(timersToDelete, id)
} else {
break
}
}
for y, x := range timersToDelete {
i := x - y
copy(state[i:], state[i+1:])
state[len(state)-1] = nil
state = state[:len(state)-1]
}
stateLock.Unlock()
if len(state) > 0 {
select {
case <-time.After(state[0].Time.Sub(time.Now())):
break
case <-change:
break
}
} else {
<-change
}
}
}()
http.HandleFunc("/onboarding", func(w http.ResponseWriter, req *http.Request) {
body, err := ioutil.ReadAll(req.Body)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
var event struct {
Account string `json:"account"`
}
if err := json.Unmarshal(body, &event); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
cursor, err := r.Table("accounts").Get(event.Account).Run(session)
if err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
defer cursor.Close()
var account *models.Account
if err := cursor.One(&account); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
x1, ok := account.Settings.(map[string]interface{})
if !ok {
http.Error(w, "Account misconfigured #1", 500)
return
}
x2, ok := x1["firstName"]
if !ok {
http.Error(w, "Account misconfigured #2", 500)
return
}
firstName, ok := x2.(string)
if !ok {
http.Error(w, "Account misconfigured #3", 500)
return
}
stateLock.Lock()
defer stateLock.Unlock()
// Render the email contents
o1buf := &bytes.Buffer{}
if err := o1tpl.Execute(o1buf, map[string]interface{}{
"first_name": firstName,
}); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
o2buf := &bytes.Buffer{}
if err := o2tpl.Execute(o2buf, map[string]interface{}{
"first_name": firstName,
}); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
o3buf := &bytes.Buffer{}
if err := o3tpl.Execute(o3buf, map[string]interface{}{
"first_name": firstName,
}); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
o4buf := &bytes.Buffer{}
if err := o4tpl.Execute(o4buf, map[string]interface{}{
"first_name": firstName,
}); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
// Four emails in total
timers := []*Timer{
// 1. Welcome to Lavaboom
&Timer{
ID: uniuri.NewLen(uniuri.UUIDLen),
Time: time.Now().Add(time.Second * 55),
From: "Felix from Lavaboom <*****@*****.**>",
To: []string{account.StyledName + "@lavaboom.com"},
Subject: "Welcome to Lavaboom",
Body: o1buf.String(),
},
// 2. Getting started
&Timer{
ID: uniuri.NewLen(uniuri.UUIDLen),
Time: time.Now().Add(time.Second * 60),
From: "Julie from Lavaboom <*****@*****.**>",
To: []string{account.StyledName + "@lavaboom.com"},
Subject: "Getting started with Lavaboom",
Body: o2buf.String(),
},
// 3. Security information
&Timer{
ID: uniuri.NewLen(uniuri.UUIDLen),
Time: time.Now().Add(time.Minute * 2),
From: "Andrei from Lavaboom <*****@*****.**>",
To: []string{account.StyledName + "@lavaboom.com"},
Subject: "Important security information",
Body: o3buf.String(),
},
// 4. How's it going?
&Timer{
ID: uniuri.NewLen(uniuri.UUIDLen),
Time: time.Now().Add(time.Minute * 360),
From: "Lavabot from Lavaboom <*****@*****.**>",
To: []string{account.StyledName + "@lavaboom.com"},
Subject: "How's it going?",
Body: o4buf.String(),
},
}
state = append(state, timers...)
if err := r.Table("onboarding").Insert(timers).Exec(session); err != nil {
http.Error(w, err.Error(), 500)
log.Print(err)
return
}
// Sort it and ping the worker
sort.Sort(state)
change <- struct{}{}
w.Write([]byte("OK"))
})
http.ListenAndServe(":8000", nil)
}
