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package otr3
import (
"bufio"
"fmt"
"io"
"os"
)
const debugString = "?OTR!"
const debugPrefix = "[DEBUG] "
var standardErrorOutput io.Writer = os.Stderr
// SetDebug sets the debug mode for this conversation.
// If debug mode is enabled, calls to Send with a message equals to "?OTR!"
// will dump debug information about the current conversation state to stderr
func (c *Conversation) SetDebug(d bool) {
c.debug = d
}
func (c *Conversation) otrOffer() string {
switch c.whitespaceState {
case whitespaceNotSent:
return "NOT"
case whitespaceSent:
if c.msgState == encrypted {
return "ACCEPTED"
}
return "SENT"
case whitespaceRejected:
return "REJECTED"
default:
return "INVALID"
}
}
func (c *Conversation) dump(w *bufio.Writer) {
w.WriteString("Context:\n\n")
w.WriteString(fmt.Sprintf(" Our instance: %08X\n", c.ourInstanceTag))
w.WriteString(fmt.Sprintf(" Their instance: %08X\n\n", c.theirInstanceTag))
w.WriteString(fmt.Sprintf(" Msgstate: %d (%s)\n\n", c.msgState, c.msgState.identityString()))
w.WriteString(fmt.Sprintf(" Protocol version: %d\n", c.version.protocolVersion()))
w.WriteString(fmt.Sprintf(" OTR offer: %s\n\n", c.otrOffer()))
if c.ake == nil {
w.WriteString(" Auth info: NULL\n")
} else {
c.dumpAKE(w)
}
w.WriteString("\n")
c.dumpSMP(w)
w.Flush()
}
// Will only be called if AKE is valid
func (c *Conversation) dumpAKE(w *bufio.Writer) {
w.WriteString(" Auth info:\n")
if c.ake != nil {
w.WriteString(fmt.Sprintf(" State: %d (%s)\n", c.ake.state.identity(), c.ake.state.identityString()))
}
w.WriteString(fmt.Sprintf(" Our keyid: %d\n", c.keys.ourKeyID))
w.WriteString(fmt.Sprintf(" Their keyid: %d\n", c.keys.theirKeyID))
w.WriteString(fmt.Sprintf(" Their fingerprint: %X\n", c.theirKey.Fingerprint()))
w.WriteString(fmt.Sprintf(" Proto version = %d\n", c.version.protocolVersion()))
w.Flush()
}
func (c *Conversation) dumpSMP(w *bufio.Writer) {
w.WriteString(" SM state:\n")
if c.smp.state != nil {
w.WriteString(fmt.Sprintf(" Next expected: %d (%s)\n", c.smp.state.identity(), c.smp.state.identityString()))
}
receivedQ := 0
if c.smp.question != nil {
receivedQ = 1
}
w.WriteString(fmt.Sprintf(" Received_Q: %d\n", receivedQ))
w.Flush()
}
func (smpStateExpect1) identity() int {
return 0
}
func (smpStateExpect2) identity() int {
return 2
}
func (smpStateExpect3) identity() int {
return 3
}
func (smpStateExpect4) identity() int {
return 4
}
func (smpStateWaitingForSecret) identity() int {
return 1
}
func (smpStateExpect1) identityString() string {
return "EXPECT1"
}
func (smpStateExpect2) identityString() string {
return "EXPECT2"
}
func (smpStateExpect3) identityString() string {
return "EXPECT3"
}
func (smpStateExpect4) identityString() string {
return "EXPECT4"
}
func (smpStateWaitingForSecret) identityString() string {
return "EXPECT1_WQ"
}
func (authStateNone) identity() int {
return 0
}
func (authStateAwaitingDHKey) identity() int {
return 1
}
func (authStateAwaitingRevealSig) identity() int {
return 2
}
func (authStateAwaitingSig) identity() int {
return 3
}
func (authStateNone) identityString() string {
return "NONE"
}
func (authStateAwaitingDHKey) identityString() string {
return "AWAITING_DHKEY"
}
func (authStateAwaitingRevealSig) identityString() string {
return "AWAITING_REVEALSIG"
}
func (authStateAwaitingSig) identityString() string {
return "AWAITING_SIG"
}
func (m msgState) identityString() string {
switch m {
case plainText:
return "PLAINTEXT"
case encrypted:
return "ENCRYPTED"
case finished:
return "FINISHED"
default:
return "INVALID"
}
}
|
