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Very initial maxline work
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@ -37,6 +37,7 @@ This release also updates the database, so be sure to run the `oragono upgradedb
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### Added
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* Added ability to ban IP addresses and networks from the server with the `DLINE` and `UNDLINE` commands.
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* Added alpha REST API (intended primarily for use with a future web interface to manage accounts, DLINEs, etc).
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* Added proposed IRCv3 capability [`maxline`](https://github.com/ircv3/ircv3-specifications/pull/281).
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### Changed
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* Database upgraded to make handling accounts simpler.
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@ -22,6 +22,7 @@ const (
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EchoMessage Capability = "echo-message"
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ExtendedJoin Capability = "extended-join"
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InviteNotify Capability = "invite-notify"
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MaxLine Capability = "draft/maxline"
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MessageTags Capability = "draft/message-tags"
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MultiPrefix Capability = "multi-prefix"
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SASL Capability = "sasl"
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@ -39,8 +40,9 @@ var (
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EchoMessage: true,
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ExtendedJoin: true,
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InviteNotify: true,
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MessageTags: true,
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MultiPrefix: true,
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// MaxLine is set during server startup
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MessageTags: true,
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MultiPrefix: true,
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// SASL is set during server startup
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ServerTime: true,
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UserhostInNames: true,
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@ -152,7 +152,14 @@ func (client *Client) run() {
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break
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}
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msg, err = ircmsg.ParseLine(line)
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var maxLen int
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if client.capabilities[MaxLine] {
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maxLen = maxLineLength
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} else {
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maxLen = 512
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}
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msg, err = ircmsg.ParseLineMaxLen(line, maxLen)
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if err != nil {
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client.Quit("received malformed line")
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break
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@ -505,9 +512,16 @@ func (client *Client) Send(tags *map[string]ircmsg.TagValue, prefix string, comm
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}
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}
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var maxLen int
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if client.capabilities[MaxLine] {
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maxLen = maxLineLength
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} else {
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maxLen = 512
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}
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// send out the message
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message := ircmsg.MakeMessage(tags, prefix, command, params...)
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line, err := message.Line()
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line, err := message.LineMaxLen(maxLen)
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if err != nil {
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// try not to fail quietly - especially useful when running tests, as a note to dig deeper
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// log.Println("Error assembling message:")
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@ -151,14 +151,15 @@ type Config struct {
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Opers map[string]*OperConfig
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Limits struct {
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NickLen uint `yaml:"nicklen"`
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ChannelLen uint `yaml:"channellen"`
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AwayLen uint `yaml:"awaylen"`
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ChanListModes uint `yaml:"chan-list-modes"`
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ChannelLen uint `yaml:"channellen"`
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KickLen uint `yaml:"kicklen"`
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LineLen uint `yaml:"linelen"`
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MonitorEntries uint `yaml:"monitor-entries"`
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NickLen uint `yaml:"nicklen"`
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TopicLen uint `yaml:"topiclen"`
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WhowasEntries uint `yaml:"whowas-entries"`
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MonitorEntries uint `yaml:"monitor-entries"`
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ChanListModes uint `yaml:"chan-list-modes"`
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}
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}
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@ -335,6 +336,9 @@ func LoadConfig(filename string) (config *Config, err error) {
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return nil, fmt.Errorf("Could not parse connection-throttle ban-duration: %s", err.Error())
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}
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}
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if config.Limits.LineLen < 512 {
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return nil, errors.New("Line length must be 512 or greater")
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}
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return config, nil
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}
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@ -16,6 +16,8 @@ var (
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// Ver is the full version of Oragono, used in responses to clients.
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Ver = fmt.Sprintf("oragono-%s", SemVer)
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// Used as the standard maximum line length unless overridden at runtime.
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maxLineLength = 512
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// maxLastArgLength is used to simply cap off the final argument when creating general messages where we need to select a limit.
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// for instance, in MONITOR lists, RPL_ISUPPORT lists, etc.
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maxLastArgLength = 400
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@ -46,6 +46,7 @@ type Limits struct {
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NickLen int
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TopicLen int
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ChanListModes int
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LineLen int
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}
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// ListenerInterface represents an interface for a listener.
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@ -146,6 +147,12 @@ func NewServer(configFilename string, config *Config) *Server {
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SupportedCapabilities[SASL] = true
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}
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if config.Limits.LineLen > 512 {
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maxLineLength = int(config.Limits.LineLen)
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SupportedCapabilities[MaxLine] = true
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CapValues[MaxLine] = strconv.Itoa(int(config.Limits.LineLen))
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}
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operClasses, err := config.OperatorClasses()
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if err != nil {
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log.Fatal("Error loading oper classes:", err.Error())
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@ -184,6 +191,7 @@ func NewServer(configFilename string, config *Config) *Server {
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NickLen: int(config.Limits.NickLen),
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TopicLen: int(config.Limits.TopicLen),
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ChanListModes: int(config.Limits.ChanListModes),
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LineLen: int(config.Limits.LineLen),
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},
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listeners: make(map[string]ListenerInterface),
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monitoring: make(map[string][]Client),
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@ -1099,6 +1107,11 @@ func (server *Server) rehash() error {
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return fmt.Errorf("Error rehashing config file config: %s", err.Error())
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}
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// line lengths cannot be changed after launching the server
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if maxLineLength != int(config.Limits.LineLen) {
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return fmt.Errorf("Maximum line length (linelen) cannot be changed after launching the server, rehash aborted")
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}
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// confirm connectionLimits are fine
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connectionLimits, err := NewConnectionLimits(config.Server.ConnectionLimits)
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if err != nil {
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@ -186,13 +186,13 @@ limits:
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channellen: 64
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# awaylen is the maximum length of an away message
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awaylen: 200
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awaylen: 500
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# kicklen is the maximum length of a kick message
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kicklen: 390
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kicklen: 1000
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# topiclen is the maximum length of a channel topic
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topiclen: 390
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topiclen: 1000
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# maximum number of monitor entries a client can have
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monitor-entries: 100
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@ -202,3 +202,6 @@ limits:
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# maximum length of channel lists (beI modes)
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chan-list-modes: 60
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# maximum length of IRC lines
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linelen: 2048
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