100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
package connection
|
|
|
|
import (
|
|
"fmt"
|
|
"net/url"
|
|
"strings"
|
|
|
|
"github.com/cloudflare/cloudflared/cmd/cloudflared/ui"
|
|
"github.com/cloudflare/cloudflared/logger"
|
|
tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
|
|
)
|
|
|
|
type Observer struct {
|
|
logger.Service
|
|
metrics *tunnelMetrics
|
|
tunnelEventChan chan<- ui.TunnelEvent
|
|
}
|
|
|
|
func NewObserver(logger logger.Service, tunnelEventChan chan<- ui.TunnelEvent) *Observer {
|
|
return &Observer{
|
|
logger,
|
|
newTunnelMetrics(),
|
|
tunnelEventChan,
|
|
}
|
|
}
|
|
|
|
func (o *Observer) logServerInfo(connectionID uint8, location, msg string) {
|
|
// If launch-ui flag is set, send connect msg
|
|
if o.tunnelEventChan != nil {
|
|
o.tunnelEventChan <- ui.TunnelEvent{Index: connectionID, EventType: ui.Connected, Location: location}
|
|
}
|
|
o.Infof(msg)
|
|
o.metrics.registerServerLocation(uint8ToString(connectionID), location)
|
|
}
|
|
|
|
func (o *Observer) logTrialHostname(registration *tunnelpogs.TunnelRegistration) error {
|
|
// Print out the user's trial zone URL in a nice box (if they requested and got one and UI flag is not set)
|
|
if o.tunnelEventChan == nil {
|
|
if registrationURL, err := url.Parse(registration.Url); err == nil {
|
|
for _, line := range asciiBox(trialZoneMsg(registrationURL.String()), 2) {
|
|
o.Info(line)
|
|
}
|
|
} else {
|
|
o.Error("Failed to connect tunnel, please try again.")
|
|
return fmt.Errorf("empty URL in response from Cloudflare edge")
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Print out the given lines in a nice ASCII box.
|
|
func asciiBox(lines []string, padding int) (box []string) {
|
|
maxLen := maxLen(lines)
|
|
spacer := strings.Repeat(" ", padding)
|
|
|
|
border := "+" + strings.Repeat("-", maxLen+(padding*2)) + "+"
|
|
|
|
box = append(box, border)
|
|
for _, line := range lines {
|
|
box = append(box, "|"+spacer+line+strings.Repeat(" ", maxLen-len(line))+spacer+"|")
|
|
}
|
|
box = append(box, border)
|
|
return
|
|
}
|
|
|
|
func maxLen(lines []string) int {
|
|
max := 0
|
|
for _, line := range lines {
|
|
if len(line) > max {
|
|
max = len(line)
|
|
}
|
|
}
|
|
return max
|
|
}
|
|
|
|
func trialZoneMsg(url string) []string {
|
|
return []string{
|
|
"Your free tunnel has started! Visit it:",
|
|
" " + url,
|
|
}
|
|
}
|
|
|
|
func (o *Observer) sendRegisteringEvent() {
|
|
if o.tunnelEventChan != nil {
|
|
o.tunnelEventChan <- ui.TunnelEvent{EventType: ui.RegisteringTunnel}
|
|
}
|
|
}
|
|
|
|
func (o *Observer) sendConnectedEvent(connIndex uint8, location string) {
|
|
if o.tunnelEventChan != nil {
|
|
o.tunnelEventChan <- ui.TunnelEvent{Index: connIndex, EventType: ui.Connected, Location: location}
|
|
}
|
|
}
|
|
|
|
func (o *Observer) sendURL(url string) {
|
|
if o.tunnelEventChan != nil {
|
|
o.tunnelEventChan <- ui.TunnelEvent{EventType: ui.SetUrl, Url: url}
|
|
}
|
|
}
|