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Add tengo support to RemoteNickFormat (#793)

This commit add support for using the result of a tengo script in RemoteNickFormat using {TENGO}
Also adds a new toml table [tengo] with key RemoteNickFormat and value location of the script.
This also moves the TengoModifyMessage from [general] to Message in [tengo]

Documentation:

RemoteNickFormat allows you to specify the location of a tengo (https://github.com/d5/tengo/) script.
The script will have the following global variables:
to modify: result
to read: channel, bridge, gateway, protocol, nick

The result will be set in {TENGO} in the RemoteNickFormat key of every bridge where {TENGO} is specified
The script is reloaded on every message, so you can modify the script on the fly.
Example script can be found in https://github.com/42wim/matterbridge/tree/master/contrib/remotenickformat.tengo

[tengo]
RemoteNickFormat="remotenickformat.tengo"
This commit is contained in:
Wim 2019-04-08 20:58:21 +02:00 committed by GitHub
parent 99d9ea283a
commit 7a24de15e4
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 98 additions and 0 deletions

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@ -166,6 +166,11 @@ type Gateway struct {
InOut []Bridge InOut []Bridge
} }
type Tengo struct {
Message string
RemoteNickFormat string
}
type SameChannelGateway struct { type SameChannelGateway struct {
Name string Name string
Enable bool Enable bool
@ -190,6 +195,7 @@ type BridgeValues struct {
WhatsApp map[string]Protocol // TODO is this struct used? Search for "SlackLegacy" for example didn't return any results WhatsApp map[string]Protocol // TODO is this struct used? Search for "SlackLegacy" for example didn't return any results
Zulip map[string]Protocol Zulip map[string]Protocol
General Protocol General Protocol
Tengo Tengo
Gateway []Gateway Gateway []Gateway
SameChannelGateway []SameChannelGateway SameChannelGateway []SameChannelGateway
} }

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@ -0,0 +1,9 @@
/*
This script will return the current time in kitchen format if the protocol (of the remote bridge) isn't irc
See https://github.com/d5/tengo/blob/master/docs/stdlib-times.md
This result can be used in {TENGO} in RemoteNickFormat
*/
times := import("times")
if protocol != "irc" {
result=times.time_format(times.now(),times.format_kitchen)
}

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@ -331,6 +331,11 @@ func (gw *Gateway) modifyUsername(msg *config.Message, dest *bridge.Bridge) stri
nick = strings.Replace(nick, "{LABEL}", br.GetString("Label"), -1) nick = strings.Replace(nick, "{LABEL}", br.GetString("Label"), -1)
nick = strings.Replace(nick, "{NICK}", msg.Username, -1) nick = strings.Replace(nick, "{NICK}", msg.Username, -1)
nick = strings.Replace(nick, "{CHANNEL}", msg.Channel, -1) nick = strings.Replace(nick, "{CHANNEL}", msg.Channel, -1)
tengoNick, err := gw.modifyUsernameTengo(msg, br)
if err != nil {
gw.logger.Errorf("modifyUsernameTengo error: %s", err)
}
nick = strings.Replace(nick, "{TENGO}", tengoNick, -1) //nolint:gocritic
return nick return nick
} }
@ -347,6 +352,9 @@ func (gw *Gateway) modifyMessage(msg *config.Message) {
if err := modifyMessageTengo(gw.BridgeValues().General.TengoModifyMessage, msg); err != nil { if err := modifyMessageTengo(gw.BridgeValues().General.TengoModifyMessage, msg); err != nil {
gw.logger.Errorf("TengoModifyMessage failed: %s", err) gw.logger.Errorf("TengoModifyMessage failed: %s", err)
} }
if err := modifyMessageTengo(gw.BridgeValues().Tengo.Message, msg); err != nil {
gw.logger.Errorf("Tengo.Message failed: %s", err)
}
// replace :emoji: to unicode // replace :emoji: to unicode
msg.Text = emojilib.Replace(msg.Text) msg.Text = emojilib.Replace(msg.Text)
@ -503,3 +511,36 @@ func modifyMessageTengo(filename string, msg *config.Message) error {
msg.Username = c.Get("msgUsername").String() msg.Username = c.Get("msgUsername").String()
return nil return nil
} }
func (gw *Gateway) modifyUsernameTengo(msg *config.Message, br *bridge.Bridge) (string, error) {
filename := gw.BridgeValues().Tengo.RemoteNickFormat
if filename == "" {
return "", nil
}
res, err := ioutil.ReadFile(filename)
if err != nil {
return "", err
}
s := script.New(res)
s.SetImports(stdlib.GetModuleMap(stdlib.AllModuleNames()...))
_ = s.Add("result", "")
_ = s.Add("msgText", msg.Text)
_ = s.Add("msgUsername", msg.Username)
_ = s.Add("nick", msg.Username)
_ = s.Add("msgAccount", msg.Account)
_ = s.Add("msgChannel", msg.Channel)
_ = s.Add("channel", msg.Channel)
_ = s.Add("msgProtocol", msg.Protocol)
_ = s.Add("remoteAccount", br.Account)
_ = s.Add("protocol", br.Protocol)
_ = s.Add("bridge", br.Name)
_ = s.Add("gateway", gw.Name)
c, err := s.Compile()
if err != nil {
return "", err
}
if err := c.Run(); err != nil {
return "", err
}
return c.Get("result").String(), nil
}

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@ -1480,6 +1480,7 @@ RemoteNickFormat="{NICK}"
#The string "{PROTOCOL}" (case sensitive) will be replaced by the protocol used by the bridge #The string "{PROTOCOL}" (case sensitive) will be replaced by the protocol used by the bridge
#The string "{GATEWAY}" (case sensitive) will be replaced by the origin gateway name that is replicating the message. #The string "{GATEWAY}" (case sensitive) will be replaced by the origin gateway name that is replicating the message.
#The string "{CHANNEL}" (case sensitive) will be replaced by the origin channel name used by the bridge #The string "{CHANNEL}" (case sensitive) will be replaced by the origin channel name used by the bridge
#The string "{TENGO}" (case sensitive) will be replaced by the output of the RemoteNickFormat script under [tengo]
#OPTIONAL (default empty) #OPTIONAL (default empty)
RemoteNickFormat="[{PROTOCOL}] <{NICK}> " RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
@ -1552,6 +1553,47 @@ IgnoreFailureOnStart=false
#OPTIONAL (default empty) #OPTIONAL (default empty)
TengoModifyMessage="example.tengo" TengoModifyMessage="example.tengo"
###################################################################
#Tengo configuration
###################################################################
#More information about tengo on: https://github.com/d5/tengo/blob/master/docs/tutorial.md and
#https://github.com/d5/tengo/blob/master/docs/stdlib.md
[tengo]
#Message allows you to specify the location of a tengo (https://github.com/d5/tengo/) script.
#This script will receive every incoming message and can be used to modify the Username and the Text of that message.
#The script will have the following global variables:
#to modify: msgUsername and msgText
#to read: msgChannel and msgAccount
#
#The script is reloaded on every message, so you can modify the script on the fly.
#
#Example script can be found in https://github.com/42wim/matterbridge/tree/master/gateway/bench.tengo
#and https://github.com/42wim/matterbridge/tree/master/contrib/example.tengo
#
#The example below will check if the text contains blah and if so, it'll replace the text and the username of that message.
#text := import("text")
#if text.re_match("blah",msgText) {
# msgText="replaced by this"
# msgUsername="fakeuser"
#}
#OPTIONAL (default empty)
Message="example.tengo"
#RemoteNickFormat allows you to specify the location of a tengo (https://github.com/d5/tengo/) script.
#The script will have the following global variables:
#to modify: result
#to read: channel, bridge, gateway, protocol, nick
#
#The result will be set in {TENGO} in the RemoteNickFormat key of every bridge where {TENGO} is specified
#
#The script is reloaded on every message, so you can modify the script on the fly.
#
#Example script can be found in https://github.com/42wim/matterbridge/tree/master/contrib/remotenickformat.tengo
#
#OPTIONAL (default empty)
RemoteNickFormat="remotenickformat.tengo"
################################################################### ###################################################################
#Gateway configuration #Gateway configuration
################################################################### ###################################################################