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Port email, slack, syslog, webhook plugins to the new alert API
This commit is contained in:
Alfredo Cardigliano
parent
5f4b7d0c02
commit
9acf38efa9
5 changed files with 67 additions and 571 deletions
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@ -93,66 +93,6 @@ end
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-- ##############################################
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-- Deprecated
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function email.dequeueAlerts(queue)
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local settings = {
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smtp_server = ntop.getPref("ntopng.prefs.alerts.smtp_server"),
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from_addr = ntop.getPref("ntopng.prefs.alerts.email_sender"),
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to_addr = ntop.getPref("ntopng.prefs.alerts.email_recipient"),
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username = ntop.getPref("ntopng.prefs.alerts.smtp_username"),
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password = ntop.getPref("ntopng.prefs.alerts.smtp_password"),
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}
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while true do
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local notifications = ntop.lrangeCache(queue, 0, MAX_ALERTS_PER_EMAIL-1)
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if not notifications then
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break
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end
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local subject = ""
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if #notifications > 1 then
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subject = "(" .. i18n("alert_messages.x_alerts", {num=#notifications}) .. ")"
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end
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local message_body = {}
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-- Multiple notifications
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for _, json_message in ipairs(notifications) do
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local notif = json.decode(json_message)
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message_body[#message_body + 1] = alert_utils.formatAlertNotification(notif, {nohtml=true})
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end
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message_body = table.concat(message_body, "<br>")
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local rv = email.sendEmail(subject, message_body, settings)
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if not rv then
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local num_attemps = (tonumber(ntop.getCache(NUM_ATTEMPTS_KEY)) or 0) + 1
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if num_attemps >= MAX_NUM_SEND_ATTEMPTS then
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ntop.delCache(NUM_ATTEMPTS_KEY)
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-- Prevent alerts starvation if the plugin is not working after max num attempts
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ntop.delCache(queue)
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return {success=false, error_message="Unable to send mails"}
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else
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ntop.setCache(NUM_ATTEMPTS_KEY, tostring(num_attemps))
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return {success=true}
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end
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else
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ntop.delCache(NUM_ATTEMPTS_KEY)
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end
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-- Remove the processed messages from the queue
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ntop.ltrimCache(queue, MAX_ALERTS_PER_EMAIL, -1)
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end
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return {success=true}
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end
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-- ##############################################
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-- Dequeue alerts from a recipient queue for sending notifications
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function email.dequeueRecipientAlerts(recipient, budget)
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local sent = 0
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@ -224,7 +164,7 @@ end
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-- ##############################################
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function email.handlePost()
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function email.runTest()
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local message_info, message_severity
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if(_POST["email_sender"] ~= nil) then
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@ -235,24 +175,23 @@ function email.handlePost()
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_POST["email_recipient"] = unescapeHTML(_POST["email_recipient"])
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end
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if(_POST["send_test_email"] ~= nil) then
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local settings = {
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smtp_server = ntop.getPref("ntopng.prefs.alerts.smtp_server"),
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from_addr = ntop.getPref("ntopng.prefs.alerts.email_sender"),
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to_addr = ntop.getPref("ntopng.prefs.alerts.email_recipient"),
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username = ntop.getPref("ntopng.prefs.alerts.smtp_username"),
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password = ntop.getPref("ntopng.prefs.alerts.smtp_password"),
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}
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local settings = {
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-- TODO
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smtp_server = ntop.getPref("ntopng.prefs.alerts.smtp_server"),
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from_addr = ntop.getPref("ntopng.prefs.alerts.email_sender"),
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to_addr = ntop.getPref("ntopng.prefs.alerts.email_recipient"),
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username = ntop.getPref("ntopng.prefs.alerts.smtp_username"),
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password = ntop.getPref("ntopng.prefs.alerts.smtp_password"),
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}
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local success = email.sendEmail("TEST MAIL", "Email notification is working", settings)
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local success = email.sendEmail("TEST MAIL", "Email notification is working", settings)
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if success then
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message_info = i18n("prefs.email_sent_successfully")
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message_severity = "alert-success"
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else
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message_info = i18n("prefs.email_send_error", {url="https://www.ntop.org/guides/ntopng/web_gui/alerts.html#email"})
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message_severity = "alert-danger"
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end
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if success then
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message_info = i18n("prefs.email_sent_successfully")
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message_severity = "alert-success"
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else
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message_info = i18n("prefs.email_send_error", {url="https://www.ntop.org/guides/ntopng/web_gui/alerts.html#email"})
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message_severity = "alert-danger"
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end
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return message_info, message_severity
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@ -260,88 +199,4 @@ end
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-- ##############################################
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function email.printPrefs(alert_endpoints, subpage_active, showElements)
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print('<thead class="thead-light"><tr><th colspan="2" class="info">'..i18n("prefs.email_notification")..'</th></tr></thead>')
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local elementToSwitch = {"row_email_notification_severity_preference", "email_sender", "email_recipient", "smtp_server", "smtp_username", "smtp_password", "alerts_test"}
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prefsToggleButton(subpage_active, {
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field = "toggle_email_notification",
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pref = alert_endpoints.getAlertNotificationModuleEnableKey("email", true),
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default = "0",
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disabled = (showElements==false),
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to_switch = elementToSwitch,
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})
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local showEmailNotificationPrefs = false
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if ntop.getPref(alert_endpoints.getAlertNotificationModuleEnableKey("email")) == "1" then
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showEmailNotificationPrefs = true
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else
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showEmailNotificationPrefs = false
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end
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multipleTableButtonPrefs(subpage_active.entries["notification_severity_preference"].title, subpage_active.entries["notification_severity_preference"].description,
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alert_endpoints.getSeverityLabels(), alert_endpoints.getSeverityValues(), "error", "primary", "email_notification_severity_preference",
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alert_endpoints.getAlertNotificationModuleSeverityKey("email"), nil, nil, nil, nil, showElements and showEmailNotificationPrefs)
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prefsInputFieldPrefs(subpage_active.entries["email_notification_server"].title, subpage_active.entries["email_notification_server"].description,
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"ntopng.prefs.alerts.", "smtp_server",
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"", nil, showElements and showEmailNotificationPrefs, false, true, {attributes={spellcheck="false"}, required=true, pattern="^((smtp://)|(smtps://))?[a-zA-Z0-9-.]*(:[0-9]+)?$"})
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prefsInputFieldPrefs(subpage_active.entries["email_notification_username"].title, subpage_active.entries["email_notification_username"].description,
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"ntopng.prefs.alerts.", "smtp_username",
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"", nil, showElements and showEmailNotificationPrefs, false, nil, {attributes={spellcheck="false"}, required=false})
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prefsInputFieldPrefs(subpage_active.entries["email_notification_password"].title, subpage_active.entries["email_notification_password"].description,
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"ntopng.prefs.alerts.", "smtp_password",
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"", "password", showElements and showEmailNotificationPrefs, false, nil, {attributes={spellcheck="false"}, required=false})
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prefsInputFieldPrefs(subpage_active.entries["email_notification_sender"].title, subpage_active.entries["email_notification_sender"].description,
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"ntopng.prefs.alerts.", "email_sender",
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"", nil, showElements and showEmailNotificationPrefs, false, nil, {attributes={spellcheck="false"}, pattern=email_peer_pattern, required=true})
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prefsInputFieldPrefs(subpage_active.entries["email_notification_recipient"].title, subpage_active.entries["email_notification_recipient"].description,
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"ntopng.prefs.alerts.", "email_recipient",
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"", nil, showElements and showEmailNotificationPrefs, false, nil, {attributes={spellcheck="false"}, pattern=email_peer_pattern, required=true})
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print('<tr id="alerts_test" style="' .. ternary(showEmailNotificationPrefs, "", "display:none;").. '"><td><button class="btn btn-secondary disable-on-dirty" type="button" onclick="sendTestEmail();" style="width:230px; float:left;">'..i18n("prefs.send_test_mail")..'</button></td></tr>')
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print[[
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<script>
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function sendTestEmail() {
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var params = {};
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params.send_test_email = "";
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params.csrf = "]] print(ntop.getRandomCSRFValue()) print[[";
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var form = paramsToForm('<form method="post"></form>', params);
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form.appendTo('body').submit();
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}
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function replace_email_special_characters(event) {
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var form = $(this);
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// e.g. when form is invalid
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if(event.isDefaultPrevented())
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return;
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// this is necessary to escape "<" and ">" which are blocked on the backend to prevent injection
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$("[name='email_sender'],[name='email_recipient']", form).each(function() {
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var name = $(this).attr("name");
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$(this).removeAttr("name");
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$('<input type="hidden" name="' + name + '">')
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.val(encodeURI($(this).val()))
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.appendTo(form);
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});
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}
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$(function() {
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$("#external_alerts_form").submit(replace_email_special_characters);
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});
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</script>]]
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end
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-- ##############################################
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return email
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