71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
// written by Daniel Oaks <daniel@danieloaks.net>
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// released under the ISC license
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package gircclient
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import (
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"errors"
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"strconv"
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"github.com/goshuirc/eventmgr"
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)
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// EventTransforms holds the set of event transformations we apply when
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// simplifying given events.
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var EventTransforms = map[string]EventTransform{
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"RPL_WELCOME": {
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StringParams: map[int]string{
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1: "message",
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},
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},
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}
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// EventTransform holds a set of event transformations that should take place
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// when simplifying the given event.
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type EventTransform struct {
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// StringParams maps the given parameter (int) to the given key in the
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// InfoMap as a string.
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StringParams map[int]string
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// IntParams maps the given parameter (int) to the given key in the InfoMap
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// as an integer.
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IntParams map[int]string
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}
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// SimplifyEvent simplifies the given event in-place. This includes better
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// argument names, convenience attributes, and native objects instead of
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// strings where appropriate.
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func SimplifyEvent(e eventmgr.InfoMap) error {
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transforms, exists := EventTransforms[e["command"].(string)]
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// no transforms found
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if exists == false {
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return nil
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}
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// apply transformations
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if len(transforms.StringParams) > 0 {
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for i, param := range e["params"].([]string) {
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name, exists := transforms.StringParams[i]
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if exists {
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e[name] = param
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}
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}
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}
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if len(transforms.IntParams) > 0 {
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for i, param := range e["params"].([]string) {
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name, exists := transforms.IntParams[i]
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if exists {
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num, err := strconv.Atoi(param)
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if err == nil {
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e[name] = num
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} else {
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return errors.New("Param " + param + " was not an integer in " + e["command"].(string) + " event")
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}
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}
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}
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}
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// we were successful!
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return nil
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}
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