// TestNewNotifier tests building the pinger object.
func TestNewNotifier(t *testing.T) {
site := getTestSite()
n := notifier.NewNotifier(site, "Site 1 responding OK", "Site 1 Up", notifier.SendEmailMock, notifier.SendSmsMock)
// Verify the first contact was Loaded with proper attributes and sorted last.
if !reflect.DeepEqual(site.Contacts, n.Site.Contacts) {
t.Error("Incoming site contacts are not the same as the notifier contacts:\n", site.Contacts, n.Site.Contacts)
}
}
// TestNotifyError tests calling the Notifications with errors on each send method.
func TestNotifyError(t *testing.T) {
site := getTestSite()
n := notifier.NewNotifier(site, "Site 1 responding OK", "Site 1 Up", notifier.SendEmailErrorMock, notifier.SendSmsErrorMock)
n.Notify()
results, err := pinger.GetLogContent()
if err != nil {
t.Fatal("Failed to get log results.", err)
}
if !strings.Contains(results, "Error sending SMS: Error - no response from server.") {
t.Error("Failed to report error in SMS send to Jack Contact.")
}
if !strings.Contains(results, "Error sending email: Error - no response from server.") {
t.Error("Failed to report error in email send to Joe Contact.")
}
}
// TestNotify tests calling the Notifications successfully.
func TestNotify(t *testing.T) {
pinger.CreatePingerLog("", true)
site := getTestSite()
n := notifier.NewNotifier(site, "Site 1 responding OK", "Site 1 Up", notifier.SendEmailMock, notifier.SendSmsMock)
n.Notify()
results, err := pinger.GetLogContent()
if err != nil {
t.Fatal("Failed to get log results.", err)
}
if !strings.Contains(results, "Sending notifications for Jack Contact Site 1 Up Site 1 responding OK") {
t.Error("Failed to report successful send to Jack Contact.")
}
if !strings.Contains(results, "Sending notifications for Joe Contact Site 1 Up Site 1 responding OK") {
t.Error("Failed to report successful send to Joe Contact.")
}
}
// ping does the actual pinging of the site and calls the notifications
func ping(s database.Site, db *sql.DB, requestURL URLRequester,
sendEmail notifier.EmailSender, sendSms notifier.SmsSender, wg *sync.WaitGroup, stop chan struct{}) {
defer wg.Done()
// Initialize the previous state of site to the database value. On site creation will initialize to true.
siteWasUp := s.IsSiteUp
var statusChange bool
var partialDetails string
var partialSubject string
for {
// initialize statusChange to false and only notify on change of siteWasUp status
statusChange = false
// Check for a quit signal to stop the pinging
select {
case <-stop:
log.Println("Stopping ", s.Name)
return
case <-time.After(time.Duration(s.PingIntervalSeconds) * time.Second):
// Do nothing
}
if !s.IsActive {
log.Println(s.Name, "Paused")
continue
}
bodyContent, statusCode, responseTime, err := requestURL(s.URL, s.TimeoutSeconds)
log.Println(s.Name, "Pinged")
// Setup ping information for recording.
p := database.Ping{SiteID: s.SiteID, TimeRequest: time.Now()}
if err != nil {
// Check if the error is due to the Internet not being Accessible
if _, ok := err.(InternetAccessError); ok {
log.Println(s.Name, "Unable to determine site status -", err)
continue
}
log.Println(s.Name, "Error", err)
if siteWasUp {
statusChange = true
partialSubject = "Site is Down"
partialDetails = "Site is down, Error is " + err.Error()
}
siteWasUp = false
} else if statusCode < 200 || statusCode > 299 { // Check if the status code is in the 2xx range.
log.Println(s.Name, "Error - HTTP Status Code is", statusCode)
if siteWasUp {
statusChange = true
partialSubject = "Site is Down"
partialDetails = "Site is down, HTTP Status Code is " + strconv.Itoa(statusCode) + "."
}
siteWasUp = false
} else {
siteUp := true
// if the site settings require check the content.
if siteUp && s.ContentExpected != "" && !strings.Contains(bodyContent, s.ContentExpected) {
siteUp = false
log.Println(s.Name, "Error - required body content missing: ", s.ContentExpected)
if siteWasUp {
statusChange = true
partialSubject = "Site is Down"
partialDetails = "Site is Down, required body content missing: " + s.ContentExpected + "."
}
}
if siteUp && s.ContentUnexpected != "" && strings.Contains(bodyContent, s.ContentUnexpected) {
siteUp = false
log.Println(s.Name, "Error - body content content has excluded content: ", s.ContentUnexpected)
if siteWasUp {
statusChange = true
partialSubject = "Site is Down"
partialDetails = "Site is Down, body content content has excluded content: " + s.ContentUnexpected + "."
}
}
if siteUp && !siteWasUp {
statusChange = true
partialSubject = "Site is Up"
partialDetails = fmt.Sprintf("Site is now up, response time was %v.", responseTime)
siteWasUp = true
}
siteWasUp = siteUp
}
// Save the ping details
p.Duration = int(responseTime.Nanoseconds() / 1e6)
p.HTTPStatusCode = statusCode
p.SiteDown = !siteWasUp
// Save ping to db.
err = p.CreatePing(db)
if err != nil {
log.Println("Error saving to ping to db:", err)
}
// Do the notifications if applicable
if statusChange {
// Update the site Status
err = s.UpdateSiteStatus(db, siteWasUp)
if err != nil {
log.Println("Error updating site status:", err)
}
// Do the notifications if applicable
subject := s.Name + ": " + partialSubject
details := s.Name + " at " + s.URL + ": " + partialDetails
log.Println("Will notify status change for", s.Name+":", details)
n := notifier.NewNotifier(s, details, subject, sendEmail, sendSms)
n.Notify()
}
}
}