feat(alerting): Add new providers for Datadog, IFTTT, Line, NewRelic, Plivo, RocketChat, SendGrid, Signal, SIGNL4, Splunk, Squadcast, Vonage, Webex and Zapier (#1224)
* feat(alerting): Add new providers for Datadog, IFTTT, Line, NewRelic, Plivo, RocketChat, SendGrid, Signal, SIGNL4, Splunk, Squadcast, Vonage, Webex and Zapier Relevant: https://github.com/TwiN/gatus/discussions/1223 Fixes #1073 Fixes #1074 * chore: Clean up code * docs: Fix table formatting * Update alerting/provider/datadog/datadog.go * Update alerting/provider/signal/signal.go * Update alerting/provider/ifttt/ifttt.go * Update alerting/provider/newrelic/newrelic.go * Update alerting/provider/squadcast/squadcast.go * Update alerting/provider/squadcast/squadcast.go
This commit is contained in:
TwiN
212
alerting/provider/vonage/vonage.go
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212
alerting/provider/vonage/vonage.go
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package vonage
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"strings"
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"github.com/TwiN/gatus/v5/alerting/alert"
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"github.com/TwiN/gatus/v5/client"
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"github.com/TwiN/gatus/v5/config/endpoint"
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"gopkg.in/yaml.v3"
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)
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const ApiURL = "https://rest.nexmo.com/sms/json"
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var (
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ErrAPIKeyNotSet = errors.New("api-key not set")
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ErrAPISecretNotSet = errors.New("api-secret not set")
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ErrFromNotSet = errors.New("from not set")
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ErrToNotSet = errors.New("to not set")
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ErrDuplicateGroupOverride = errors.New("duplicate group override")
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)
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type Config struct {
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APIKey string `yaml:"api-key"`
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APISecret string `yaml:"api-secret"`
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From string `yaml:"from"`
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To []string `yaml:"to"`
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}
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func (cfg *Config) Validate() error {
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if len(cfg.APIKey) == 0 {
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return ErrAPIKeyNotSet
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}
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if len(cfg.APISecret) == 0 {
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return ErrAPISecretNotSet
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}
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if len(cfg.From) == 0 {
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return ErrFromNotSet
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}
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if len(cfg.To) == 0 {
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return ErrToNotSet
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}
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return nil
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}
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func (cfg *Config) Merge(override *Config) {
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if len(override.APIKey) > 0 {
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cfg.APIKey = override.APIKey
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}
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if len(override.APISecret) > 0 {
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cfg.APISecret = override.APISecret
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}
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if len(override.From) > 0 {
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cfg.From = override.From
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}
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if len(override.To) > 0 {
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cfg.To = override.To
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}
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}
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// AlertProvider is the configuration necessary for sending an alert using Vonage
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type AlertProvider struct {
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DefaultConfig Config `yaml:",inline"`
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// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
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DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
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// Overrides is a list of Override that may be prioritized over the default configuration
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Overrides []Override `yaml:"overrides,omitempty"`
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}
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// Override is a case under which the default integration is overridden
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type Override struct {
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Group string `yaml:"group"`
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Config `yaml:",inline"`
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}
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// Validate the provider's configuration
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func (provider *AlertProvider) Validate() error {
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registeredGroups := make(map[string]bool)
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if provider.Overrides != nil {
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for _, override := range provider.Overrides {
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if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" {
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return ErrDuplicateGroupOverride
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}
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registeredGroups[override.Group] = true
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}
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}
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return provider.DefaultConfig.Validate()
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}
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// Send an alert using the provider
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func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
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cfg, err := provider.GetConfig(ep.Group, alert)
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if err != nil {
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return err
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}
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message := provider.buildMessage(cfg, ep, alert, result, resolved)
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// Send SMS to each recipient
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for _, recipient := range cfg.To {
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if err := provider.sendSMS(cfg, recipient, message); err != nil {
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return err
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}
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}
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return nil
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}
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// sendSMS sends an individual SMS message
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func (provider *AlertProvider) sendSMS(cfg *Config, to, message string) error {
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data := url.Values{}
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data.Set("api_key", cfg.APIKey)
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data.Set("api_secret", cfg.APISecret)
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data.Set("from", cfg.From)
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data.Set("to", to)
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data.Set("text", message)
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request, err := http.NewRequest(http.MethodPost, ApiURL, strings.NewReader(data.Encode()))
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if err != nil {
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return err
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}
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request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
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response, err := client.GetHTTPClient(nil).Do(request)
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if err != nil {
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return err
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}
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defer response.Body.Close()
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// Read response body once and use it for both error handling and JSON processing
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body, err := io.ReadAll(response.Body)
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if err != nil {
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return err
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}
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if response.StatusCode >= 400 {
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return fmt.Errorf("call to vonage alert returned status code %d: %s", response.StatusCode, string(body))
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}
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// Check response for errors in messages array
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var vonageResponse Response
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if err := json.Unmarshal(body, &vonageResponse); err != nil {
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return err
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}
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// Check if any message failed
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for _, msg := range vonageResponse.Messages {
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if msg.Status != "0" {
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return fmt.Errorf("vonage SMS failed with status %s: %s", msg.Status, msg.ErrorText)
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}
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}
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return nil
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}
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type Response struct {
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MessageCount string `json:"message-count"`
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Messages []Message `json:"messages"`
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}
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type Message struct {
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To string `json:"to"`
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MessageID string `json:"message-id"`
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Status string `json:"status"`
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ErrorText string `json:"error-text"`
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RemainingBalance string `json:"remaining-balance"`
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MessagePrice string `json:"message-price"`
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Network string `json:"network"`
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}
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// buildMessage builds the SMS message content
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func (provider *AlertProvider) buildMessage(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) string {
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if resolved {
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return fmt.Sprintf("RESOLVED: %s - %s", ep.DisplayName(), alert.GetDescription())
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} else {
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return fmt.Sprintf("TRIGGERED: %s - %s", ep.DisplayName(), alert.GetDescription())
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}
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}
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// GetDefaultAlert returns the provider's default alert configuration
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func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
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return provider.DefaultAlert
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}
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// GetConfig returns the configuration for the provider with the overrides applied
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func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
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cfg := provider.DefaultConfig
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// Handle group overrides
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if provider.Overrides != nil {
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for _, override := range provider.Overrides {
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if group == override.Group {
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cfg.Merge(&override.Config)
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break
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}
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}
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}
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// Handle alert overrides
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if len(alert.ProviderOverride) != 0 {
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overrideConfig := Config{}
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if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
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return nil, err
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}
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cfg.Merge(&overrideConfig)
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}
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// Validate the configuration
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err := cfg.Validate()
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return &cfg, err
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}
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// ValidateOverrides validates the alert's provider override and, if present, the group override
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func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
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_, err := provider.GetConfig(group, alert)
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return err
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}
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