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mail.go
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mail.go
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/*
* NETCAP - Traffic Analysis Framework
* Copyright (c) 2017-2020 Philipp Mieden <dreadl0ck [at] protonmail [dot] ch>
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package types
import (
"github.com/dreadl0ck/netcap/encoder"
"strconv"
"time"
)
const (
fieldReturnPath = "ReturnPath"
fieldFrom = "From"
fieldTo = "To"
fieldCC = "CC"
fieldSubject = "Subject"
fieldDate = "Date"
fieldMessageID = "MessageID"
fieldReferences = "References"
fieldInReplyTo = "InReplyTo"
fieldContentLanguage = "ContentLanguage"
fieldHasAttachments = "HasAttachments"
fieldXOriginatingIP = "XOriginatingIP"
fieldEnvelopeTo = "EnvelopeTo"
fieldBody = "Body"
fieldServerIP = "ServerIP"
)
var fieldsMail = []string{
fieldTimestamp, // int64
fieldReturnPath, // string
fieldFrom, // string
fieldTo, // string
fieldCC, // string
fieldSubject, // string
fieldDate, // string
fieldMessageID, // string
fieldReferences, // string
fieldInReplyTo, // string
fieldContentLanguage, // string
fieldHasAttachments, // bool
fieldXOriginatingIP, // string
fieldContentType, // string
fieldEnvelopeTo, // string
//fieldBody, // []*MailPart
fieldClientIP, // string
fieldServerIP, // string
fieldID, // string
}
// CSVHeader returns the CSV header for the audit record.
func (d *Mail) CSVHeader() []string {
return filter(fieldsMail)
}
// CSVRecord returns the CSV record for the audit record.
func (d *Mail) CSVRecord() []string {
return filter([]string{
formatTimestamp(d.Timestamp),
d.ReturnPath, // string
d.From, // string
d.To, // string
d.CC, // string
d.Subject, // string
d.Date, // string
d.MessageID, // string
d.References, // string
d.InReplyTo, // string
d.ContentLanguage, // string
strconv.FormatBool(d.HasAttachments), // bool
d.XOriginatingIP, // string
d.ContentType, // string
d.EnvelopeTo, // string
// d.Body, // []*MailPart
d.ClientIP, // string
d.ServerIP, // string
d.ID, // string
})
}
// Time returns the timestamp associated with the audit record.
func (d *Mail) Time() int64 {
return d.Timestamp
}
// JSON returns the JSON representation of the audit record.
func (d *Mail) JSON() (string, error) {
// convert unix timestamp from nano to millisecond precision for elastic
d.Timestamp /= int64(time.Millisecond)
return jsonMarshaler.MarshalToString(d)
}
// Inc increments the metrics for the audit record.
func (d *Mail) Inc() {}
// SetPacketContext sets the associated packet context for the audit record.
func (d *Mail) SetPacketContext(*PacketContext) {}
// Src returns the source address of the audit record.
func (d *Mail) Src() string {
return d.ClientIP
}
// Dst returns the destination address of the audit record.
func (d *Mail) Dst() string {
return d.ServerIP
}
var mailEncoder = encoder.NewValueEncoder()
// Encode will encode categorical values and normalize according to configuration
func (d *Mail) Encode() []string {
return filter([]string{
mailEncoder.Int64(fieldTimestamp, d.Timestamp),
mailEncoder.String(fieldReturnPath, d.ReturnPath), // string
mailEncoder.String(fieldFrom, d.From), // string
mailEncoder.String(fieldTo, d.To), // string
mailEncoder.String(fieldCC, d.CC), // string
mailEncoder.String(fieldSubject, d.Subject), // string
mailEncoder.String(fieldDate, d.Date), // string
mailEncoder.String(fieldMessageID, d.MessageID), // string
mailEncoder.String(fieldReferences, d.References), // string
mailEncoder.String(fieldInReplyTo, d.InReplyTo), // string
mailEncoder.String(fieldContentLanguage, d.ContentLanguage), // string
mailEncoder.Bool(d.HasAttachments), // bool
mailEncoder.String(fieldXOriginatingIP, d.XOriginatingIP), // string
mailEncoder.String(fieldContentType, d.ContentType), // string
mailEncoder.String(fieldEnvelopeTo, d.EnvelopeTo), // string
// d.Body, // []*MailPart
mailEncoder.String(fieldClientIP, d.ClientIP), // string
mailEncoder.String(fieldServerIP, d.ServerIP), // string
mailEncoder.String(fieldID, d.ID), // string
})
}
// Analyze will invoke the configured analyzer for the audit record and return a score.
func (d *Mail) Analyze() {}
// NetcapType returns the type of the current audit record
func (d *Mail) NetcapType() Type {
return Type_NC_Mail
}