124 lines
3.7 KiB
Go
124 lines
3.7 KiB
Go
// Copyright (c) 2020 Tulir Asokan
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package pushrules
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import "encoding/json"
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// PushActionType is the type of a PushAction
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type PushActionType string
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// The allowed push action types as specified in spec section 11.12.1.4.1.
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const (
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ActionNotify PushActionType = "notify"
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ActionDontNotify PushActionType = "dont_notify"
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ActionCoalesce PushActionType = "coalesce"
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ActionSetTweak PushActionType = "set_tweak"
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)
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// PushActionTweak is the type of the tweak in SetTweak push actions.
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type PushActionTweak string
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// The allowed tweak types as specified in spec section 11.12.1.4.1.1.
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const (
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TweakSound PushActionTweak = "sound"
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TweakHighlight PushActionTweak = "highlight"
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)
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// PushActionArray is an array of PushActions.
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type PushActionArray []*PushAction
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// PushActionArrayShould contains the important information parsed from a PushActionArray.
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type PushActionArrayShould struct {
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// Whether or not the array contained a Notify, DontNotify or Coalesce action type.
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NotifySpecified bool
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// Whether or not the event in question should trigger a notification.
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Notify bool
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// Whether or not the event in question should be highlighted.
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Highlight bool
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// Whether or not the event in question should trigger a sound alert.
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PlaySound bool
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// The name of the sound to play if PlaySound is true.
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SoundName string
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}
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// Should parses this push action array and returns the relevant details wrapped in a PushActionArrayShould struct.
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func (actions PushActionArray) Should() (should PushActionArrayShould) {
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for _, action := range actions {
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switch action.Action {
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case ActionNotify, ActionCoalesce:
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should.Notify = true
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should.NotifySpecified = true
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case ActionDontNotify:
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should.Notify = false
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should.NotifySpecified = true
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case ActionSetTweak:
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switch action.Tweak {
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case TweakHighlight:
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var ok bool
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should.Highlight, ok = action.Value.(bool)
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if !ok {
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// Highlight value not specified, so assume true since the tweak is set.
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should.Highlight = true
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}
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case TweakSound:
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should.SoundName = action.Value.(string)
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should.PlaySound = len(should.SoundName) > 0
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}
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}
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}
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return
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}
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// PushAction is a single action that should be triggered when receiving a message.
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type PushAction struct {
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Action PushActionType
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Tweak PushActionTweak
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Value interface{}
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}
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// UnmarshalJSON parses JSON into this PushAction.
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//
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// - If the JSON is a single string, the value is stored in the Action field.
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// - If the JSON is an object with the set_tweak field, Action will be set to
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// "set_tweak", Tweak will be set to the value of the set_tweak field and
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// and Value will be set to the value of the value field.
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// - In any other case, the function does nothing.
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func (action *PushAction) UnmarshalJSON(raw []byte) error {
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var data interface{}
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err := json.Unmarshal(raw, &data)
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if err != nil {
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return err
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}
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switch val := data.(type) {
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case string:
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action.Action = PushActionType(val)
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case map[string]interface{}:
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tweak, ok := val["set_tweak"].(string)
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if ok {
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action.Action = ActionSetTweak
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action.Tweak = PushActionTweak(tweak)
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action.Value, _ = val["value"]
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}
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}
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return nil
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}
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// MarshalJSON is the reverse of UnmarshalJSON()
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func (action *PushAction) MarshalJSON() (raw []byte, err error) {
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if action.Action == ActionSetTweak {
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data := map[string]interface{}{
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"set_tweak": action.Tweak,
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"value": action.Value,
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}
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return json.Marshal(&data)
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}
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data := string(action.Action)
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return json.Marshal(&data)
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}
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