107 lines
3.7 KiB
Go
107 lines
3.7 KiB
Go
package ifttt
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import (
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"errors"
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"fmt"
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"net/url"
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"github.com/nicholas-fedor/shoutrrr/pkg/format"
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"github.com/nicholas-fedor/shoutrrr/pkg/services/standard"
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"github.com/nicholas-fedor/shoutrrr/pkg/types"
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)
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const (
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Scheme = "ifttt" // Scheme identifies this service in configuration URLs.
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DefaultMessageValue = 2 // Default value field (1-3) for the notification message
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DisabledValue = 0 // Value to disable title assignment
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MinValueField = 1 // Minimum valid value field (Value1)
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MaxValueField = 3 // Maximum valid value field (Value3)
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MinLength = 1 // Minimum length for required fields like Events and WebHookID
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)
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var (
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ErrInvalidMessageValue = errors.New(
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"invalid value for messagevalue: only values 1-3 are supported",
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)
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ErrInvalidTitleValue = errors.New(
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"invalid value for titlevalue: only values 1-3 or 0 (for disabling) are supported",
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)
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ErrTitleMessageConflict = errors.New("titlevalue cannot use the same number as messagevalue")
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ErrMissingEvents = errors.New("events missing from config URL")
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ErrMissingWebhookID = errors.New("webhook ID missing from config URL")
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)
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// Config holds settings for the IFTTT notification service.
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type Config struct {
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standard.EnumlessConfig
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WebHookID string `required:"true" url:"host"`
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Events []string `required:"true" key:"events"`
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Value1 string ` key:"value1" optional:""`
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Value2 string ` key:"value2" optional:""`
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Value3 string ` key:"value3" optional:""`
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UseMessageAsValue uint8 ` key:"messagevalue" default:"2" desc:"Sets the corresponding value field to the notification message"`
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UseTitleAsValue uint8 ` key:"titlevalue" default:"0" desc:"Sets the corresponding value field to the notification title"`
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Title string ` key:"title" default:"" desc:"Notification title, optionally set by the sender"`
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}
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// GetURL generates a URL from the current configuration values.
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func (config *Config) GetURL() *url.URL {
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resolver := format.NewPropKeyResolver(config)
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return config.getURL(&resolver)
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}
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// SetURL updates the configuration from a URL representation.
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func (config *Config) SetURL(url *url.URL) error {
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resolver := format.NewPropKeyResolver(config)
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return config.setURL(&resolver, url)
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}
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func (config *Config) getURL(resolver types.ConfigQueryResolver) *url.URL {
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return &url.URL{
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Host: config.WebHookID,
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Path: "/",
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Scheme: Scheme,
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RawQuery: format.BuildQuery(resolver),
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}
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}
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func (config *Config) setURL(resolver types.ConfigQueryResolver, url *url.URL) error {
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if config.UseMessageAsValue == DisabledValue {
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config.UseMessageAsValue = DefaultMessageValue
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}
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config.WebHookID = url.Hostname()
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for key, vals := range url.Query() {
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if err := resolver.Set(key, vals[0]); err != nil {
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return fmt.Errorf("setting config property %q from URL query: %w", key, err)
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}
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}
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if config.UseMessageAsValue > MaxValueField || config.UseMessageAsValue < MinValueField {
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return ErrInvalidMessageValue
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}
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if config.UseTitleAsValue > MaxValueField {
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return ErrInvalidTitleValue
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}
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if config.UseTitleAsValue != DisabledValue &&
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config.UseTitleAsValue == config.UseMessageAsValue {
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return ErrTitleMessageConflict
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}
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if url.String() != "ifttt://dummy@dummy.com" {
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if len(config.Events) < MinLength {
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return ErrMissingEvents
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}
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if len(config.WebHookID) < MinLength {
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return ErrMissingWebhookID
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}
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}
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return nil
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}
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