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review fix: add maxParams for service commands

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This commit is contained in:
Shivaram Lingamneni 2019-01-04 10:03:12 -05:00
parent 4caa362f18
commit 598d9a025b
4 changed files with 86 additions and 13 deletions
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40
irc/services.go
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@ -11,6 +11,7 @@ import (
"github.com/goshuirc/irc-go/ircfmt"
"github.com/goshuirc/irc-go/ircmsg"
"github.com/oragono/oragono/irc/utils"
)
// defines an IRC service, e.g., NICKSERV
@ -32,6 +33,7 @@ type serviceCommand struct {
authRequired bool
enabled func(*Config) bool // is this command enabled in the server config?
minParams int
maxParams int // split into at most n params, with last param containing remaining unsplit text
}
// looks up a command in the table of command definitions for a service, resolving aliases
@ -97,29 +99,49 @@ func serviceCmdHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb
return false
}
serviceRunCommand(service, server, client, msg.Params, rb)
if len(msg.Params) == 0 {
return false
}
commandName := strings.ToLower(msg.Params[0])
params := msg.Params[1:]
cmd := lookupServiceCommand(service.Commands, commandName)
// for a maxParams command, join all final parameters together if necessary
if cmd != nil && cmd.maxParams != 0 && cmd.maxParams < len(params) {
newParams := make([]string, cmd.maxParams)
copy(newParams, params[:cmd.maxParams-1])
newParams[cmd.maxParams-1] = strings.Join(params[cmd.maxParams-1:], " ")
params = newParams
}
serviceRunCommand(service, server, client, cmd, commandName, params, rb)
return false
}
// generic handler for service PRIVMSG, like `/msg NickServ INFO`
func servicePrivmsgHandler(service *ircService, server *Server, client *Client, message string, rb *ResponseBuffer) {
serviceRunCommand(service, server, client, strings.Fields(message), rb)
}
// actually execute a service command
func serviceRunCommand(service *ircService, server *Server, client *Client, params []string, rb *ResponseBuffer) {
params := strings.Fields(message)
if len(params) == 0 {
return
}
commandName := strings.ToLower(params[0])
params = params[1:]
// look up the service command to see how to parse it
commandName := strings.ToLower(params[0])
cmd := lookupServiceCommand(service.Commands, commandName)
// reparse if needed
if cmd != nil && cmd.maxParams != 0 {
params = utils.FieldsN(message, cmd.maxParams+1)[1:]
} else {
params = params[1:]
}
serviceRunCommand(service, server, client, cmd, commandName, params, rb)
}
// actually execute a service command
func serviceRunCommand(service *ircService, server *Server, client *Client, cmd *serviceCommand, commandName string, params []string, rb *ResponseBuffer) {
nick := rb.target.Nick()
sendNotice := func(notice string) {
rb.Add(nil, service.Name, "NOTICE", nick, notice)
}
cmd := lookupServiceCommand(service.Commands, commandName)
if cmd == nil {
sendNotice(fmt.Sprintf("%s /%s HELP", client.t("Unknown command. To see available commands, run"), service.ShortName))
return