Hand over regex-based-command responsibilities to `commands` module

5 files changed, 181 insertions, 190 deletions

diff --git a/modules/commands/__init__.py b/modules/commands/__init__.py
index 2b03dee1..78cad2e8 100644
--- a/modules/commands/__init__.py
+++ b/modules/commands/__init__.py
@@ -90,10 +90,9 @@ class Module(ModuleManager.BaseModule):
             return True
         return False
 
-    def message(self, event, command, args_index=1):
-        args_split = event["message_split"][args_index:]
+    def _find_command_hook(self, server, command, is_channel):
         if not self.has_command(command):
-            aliases = self._get_aliases(event["server"])
+            aliases = self._get_aliases(server)
             if command.lower() in aliases:
                 command, _, new_args = aliases[command.lower()].partition(" ")
 
@@ -102,12 +101,8 @@ class Module(ModuleManager.BaseModule):
                 except IndexError:
                     return
 
+        hook = None
         if self.has_command(command):
-            if self._is_ignored(event["server"], event["user"], command):
-                return
-
-            hook = None
-            target = None
             for potential_hook in self.get_hooks(command):
                 alias_of = self._get_alias_of(potential_hook)
                 if alias_of:
@@ -118,97 +113,92 @@ class Module(ModuleManager.BaseModule):
                             "'%s' is an alias of unknown command '%s'"
                            % (command.lower(), alias_of.lower()))
 
-                is_channel = "channel" in event
                 if not is_channel and potential_hook.kwargs.get("channel_only"):
                     continue
                 if is_channel and potential_hook.kwargs.get("private_only"):
                     continue
 
                 hook = potential_hook
-                target = event["user"] if not is_channel else event["channel"]
                 break
 
-            if not hook:
-                return
+        return hook
 
-            module_name = self._get_prefix(hook) or ""
-            if not module_name and hasattr(hook.function, "__self__"):
-                module_name = hook.function.__self__._name
+    def command(self, server, target, is_channel, user, command, args_split,
+            tags, statusmsg, hook, **kwargs):
+        if self._is_ignored(server, user, command):
+            return False
 
-            msgid = MSGID_TAG.get_value(event["tags"])
-            statusmsg = "".join(event.get("statusmsg", []))
-            stdout = outs.StdOut(event["server"], module_name, target, msgid,
-                statusmsg)
-            stderr = outs.StdErr(event["server"], module_name, target, msgid,
-                statusmsg)
-            command_method = self._command_method(target, event["server"])
+        module_name = self._get_prefix(hook) or ""
+        if not module_name and hasattr(hook.function, "__self__"):
+            module_name = hook.function.__self__._name
 
-            if hook.kwargs.get("remove_empty", True):
-                args_split = list(filter(None, args_split))
+        msgid = MSGID_TAG.get_value(tags)
+        stdout = outs.StdOut(server, module_name, target, msgid, statusmsg)
+        stderr = outs.StdErr(server, module_name, target, msgid, statusmsg)
+        command_method = self._command_method(target, server)
 
-            min_args = hook.kwargs.get("min_args")
-            if min_args and len(args_split) < min_args:
-                command_prefix = ""
-                if is_channel:
-                    command_prefix = self._command_prefix(event["server"],
-                        target)
-                usage = self._get_usage(hook, command, command_prefix)
-                if usage:
-                    stderr.write("Not enough arguments, usage: %s" %
-                        usage).send(command_method)
-                else:
-                    stderr.write("Not enough arguments (minimum: %d)" %
-                        min_args).send(command_method)
+        if hook.kwargs.get("remove_empty", True):
+            args_split = list(filter(None, args_split))
+
+        target.buffer.skip_next()
+
+        min_args = hook.kwargs.get("min_args")
+        if min_args and len(args_split) < min_args:
+            command_prefix = ""
+            if is_channel:
+                command_prefix = self._command_prefix(server, target)
+            usage = self._get_usage(hook, command, command_prefix)
+            if usage:
+                stderr.write("Not enough arguments, usage: %s" %
+                    usage).send(command_method)
             else:
-                returns = self.events.on("preprocess.command").call_unsafe(
-                    hook=hook, user=event["user"], server=event["server"],
-                    target=target, is_channel=is_channel, tags=event["tags"],
-                    args_split=args_split)
+                stderr.write("Not enough arguments (minimum: %d)" %
+                    min_args).send(command_method)
+        else:
+            returns = self.events.on("preprocess.command").call_unsafe(
+                hook=hook, user=user, server=server, target=target,
+                is_channel=is_channel, tags=tags, args_split=args_split,
+                command=command)
 
-                hard_fail = False
-                force_success = False
-                error = None
-                for returned in returns:
-                    if returned == utils.consts.PERMISSION_HARD_FAIL:
-                        hard_fail = True
-                        break
-                    elif returned == utils.consts.PERMISSION_FORCE_SUCCESS:
-                        force_success = True
-                    elif returned:
-                        error = returned
+            hard_fail = False
+            force_success = False
+            error = None
+            for returned in returns:
+                if returned == utils.consts.PERMISSION_HARD_FAIL:
+                    hard_fail = True
+                    break
+                elif returned == utils.consts.PERMISSION_FORCE_SUCCESS:
+                    force_success = True
+                elif returned:
+                    error = returned
 
-                if hard_fail or (not force_success and error):
-                    if error:
-                        stderr.write(error).send(command_method)
-                        target.buffer.skip_next()
-                    return
+            if hard_fail or (not force_success and error):
+                if error:
+                    stderr.write(error).send(command_method)
+                    target.buffer.skip_next()
+                return True
 
-                args = " ".join(args_split)
-                server = event["server"]
-                user = event["user"]
+            args = " ".join(args_split)
 
-                new_event = self.events.on("received.command").on(command
-                    ).make_event(user=user, server=server, target=target,
-                    args=args, tags=event["tags"], args_split=args_split,
-                    stdout=stdout, stderr=stderr, command=command.lower(),
-                    is_channel=is_channel)
+            new_event = self.events.on(hook.event_name).make_event(user=user,
+                server=server, target=target, args=args, tags=tags,
+                args_split=args_split, stdout=stdout, stderr=stderr,
+                is_channel=is_channel, command=command, **kwargs)
 
-                self.log.trace("calling command '%s': %s",
-                    [command, new_event.kwargs])
-                try:
-                    hook.call(new_event)
-                except utils.EventError as e:
-                    stderr.write(str(e))
+            self.log.trace("calling command '%s': %s",
+                [command, new_event.kwargs])
+            try:
+                hook.call(new_event)
+            except utils.EventError as e:
+                stderr.write(str(e))
 
-                if not hook.kwargs.get("skip_out", False):
-                    command_method = self._command_method(
-                        target, event["server"])
-                    stdout.send(command_method)
-                    stderr.send(command_method)
-                    target.last_stdout = stdout
-                    target.last_stderr = stderr
-            target.buffer.skip_next()
-        event.eat()
+            if not hook.kwargs.get("skip_out", False):
+                command_method = self._command_method(target, server)
+                stdout.send(command_method)
+                stderr.send(command_method)
+                target.last_stdout = stdout
+                target.last_stderr = stderr
+            return new_event.eaten
 
     def _command_prefix(self, server, channel):
         return channel.get_setting("command-prefix",
@@ -225,22 +215,53 @@ class Module(ModuleManager.BaseModule):
         prefixed_commands = event["channel"].get_setting("prefixed-commands", True)
 
         command_prefix = self._command_prefix(event["server"], event["channel"])
+        command = None
+        args_split = None
         if event["message_split"][0].startswith(command_prefix):
             if not prefixed_commands:
                 return
             command = event["message_split"][0].replace(
                 command_prefix, "", 1).lower()
-            self.message(event, command)
+            args_split = event["message_split"][1:]
         elif len(event["message_split"]) > 1 and self.is_highlight(
                 event["server"], event["message_split"][0]):
             command = event["message_split"][1].lower()
-            self.message(event, command, 2)
+            args_split = event["message_split"][2:]
+
+        if command:
+            hook = self._find_command_hook(event["server"], command, True)
+            if hook:
+                self.command(event["server"], event["channel"], True,
+                    event["user"], command, args_split, event["tags"],
+                    "".join(event["statusmsg"]), hook)
+        else:
+            regex_hook = self.events.on("command.regex").get_hooks()
+            for hook in regex_hook:
+                pattern = hook.get_kwarg("pattern", None)
+                if not pattern and hook.get_kwarg("pattern-url", None) == "1":
+                    pattern = utils.http.REGEX_URL
+
+                if pattern:
+                    match = re.match(pattern, event["message"])
+                    if match:
+                        command = hook.get_kwarg("command", "")
+                        res = self.command(event["server"], event["channel"],
+                            True, event["user"], command, "", event["tags"],
+                            "".join(event["statusmsg"]), hook, match=match,
+                            message=event["message"])
+
+                        if res:
+                            break
 
     @utils.hook("received.message.private", priority=EventManager.PRIORITY_LOW)
     def private_message(self, event):
         if event["message_split"] and not event["action"]:
             command = event["message_split"][0].lower()
-            self.message(event, command)
+            hook = self._find_command_hook(event["server"], command, False)
+            if hook:
+                self.command(event["server"], event["user"], False,
+                    event["user"], command, event["message_split"][1:],
+                    event["tags"], "", hook)
 
     def _get_help(self, hook):
         return hook.get_kwarg("help", None) or hook.docstring.description
diff --git a/modules/karma.py b/modules/karma.py
index 2f631889..c9266ef8 100644
--- a/modules/karma.py
+++ b/modules/karma.py
@@ -20,68 +20,53 @@ class Module(ModuleManager.BaseModule):
             return utils.irc.color(str(karma), utils.consts.LIGHTGREEN)
         return str(karma)
 
-
     @utils.hook("new.user")
     def new_user(self, event):
         event["user"].last_karma = None
 
-    @utils.hook("received.message.channel")
+    @utils.hook("command.regex")
     def channel_message(self, event):
-        match = re.match(REGEX_KARMA, event["message"].strip())
-        if match and not event["action"]:
-            is_ignored_f = self.exports.get_one("is-ignored",
-                lambda _1, _2: False)
-            if is_ignored_f(event["server"], event["user"], "karma"):
-                return
+        """
+        :command: karma
+        :pattern: ^(.*[^-+])[-+]*(\+{2,}|\-{2,})$
+        """
+        verbose = event["target"].get_setting("karma-verbose", False)
+        nickname_only = event["server"].get_setting("karma-nickname-only",
+            False)
 
-            is_silenced_f = self.exports.get_one("is-silenced", lambda _: False)
-            if is_silenced_f(event["channel"]):
+        if not event["user"].last_karma or (time.time()-event["user"
+                ].last_karma) >= KARMA_DELAY_SECONDS:
+            target = event["match"].group(1).strip().rstrip("".join(WORD_STOP))
+            if event["server"].irc_lower(target) == event["user"].name:
+                if verbose:
+                    event["stdout"].write("You cannot change your own karma")
                 return
 
-            verbose = event["channel"].get_setting("karma-verbose", False)
-            nickname_only = event["server"].get_setting("karma-nickname-only",
-                False)
-
-            if not event["user"].last_karma or (time.time()-event["user"
-                    ].last_karma) >= KARMA_DELAY_SECONDS:
-                target = match.group(1).strip().rstrip("".join(WORD_STOP))
-                if event["server"].irc_lower(target) == event["user"].name:
-                    if verbose:
-                        self.events.on("send.stderr").call(
-                            module_name="Karma", target=event["channel"],
-                            message="You cannot change your own karma",
-                            server=event["server"])
+            setting = "karma-%s" % target
+            setting_target = event["server"]
+            if nickname_only:
+                user = event["server"].get_user(target)
+                setting = "karma"
+                setting_target = user
+                if not event["target"].has_user(user):
                     return
 
-                setting = "karma-%s" % target
-                setting_target = event["server"]
-                if nickname_only:
-                    user = event["server"].get_user(target)
-                    setting = "karma"
-                    setting_target = user
-                    if not event["channel"].has_user(user):
-                        return
+            positive = event["match"].group(2)[0] == "+"
+            karma = setting_target.get_setting(setting, 0)
+            karma += 1 if positive else -1
 
-                positive = match.group(2)[0] == "+"
-                karma = setting_target.get_setting(setting, 0)
-                karma += 1 if positive else -1
+            if not karma == 0:
+                setting_target.set_setting(setting, karma)
+            else:
+                setting_target.del_setting(setting)
 
-                if not karma == 0:
-                    setting_target.set_setting(setting, karma)
-                else:
-                    setting_target.del_setting(setting)
-
-                karma_str = self._karma_str(karma)
-                if verbose:
-                    self.events.on("send.stdout").call(
-                       module_name="Karma", target=event["channel"],
-                       message="%s now has %s karma" % (target, karma_str),
-                       server=event["server"])
-                event["user"].last_karma = time.time()
-            elif verbose:
-                self.events.on("send.stderr").call(module_name="Karma",
-                    target=event["channel"], server=event["server"],
-                    message="Try again in a couple of seconds")
+            karma_str = self._karma_str(karma)
+            if verbose:
+                event["stdout"].write(
+                    "%s now has %s karma" % (target, karma_str))
+            event["user"].last_karma = time.time()
+        elif verbose:
+            event["stderr"].write("Try again in a couple of seconds")
 
     @utils.hook("received.command.karma")
     def karma(self, event):
diff --git a/modules/sed.py b/modules/sed.py
index f6849810..69cbaca7 100644
--- a/modules/sed.py
+++ b/modules/sed.py
@@ -12,19 +12,18 @@ REGEX_SED = re.compile("^s/")
     "validate": utils.bool_or_none})
 class Module(ModuleManager.BaseModule):
     def _closest_setting(self, event, setting, default):
-        return event["channel"].get_setting(setting,
+        return event["target"].get_setting(setting,
             event["server"].get_setting(setting, default))
 
-    @utils.hook("received.message.channel")
+    @utils.hook("command.regex")
     def channel_message(self, event):
+        """
+        :command: sed
+        :pattern: ^s/
+        """
         sed_split = re.split(REGEX_SPLIT, event["message"], 3)
         if event["message"].startswith("s/") and len(sed_split) > 2:
-            if event["action"] or not self._closest_setting(event, "sed",
-                    False):
-                return
-            is_ignored_f = short_url = self.exports.get_one("is-ignored",
-                lambda _1, _2: False)
-            if is_ignored_f(event["server"], event["user"], "sed"):
+            if not self._closest_setting(event, "sed", False):
                 return
 
             regex_flags = 0
@@ -50,15 +49,13 @@ class Module(ModuleManager.BaseModule):
                 pattern = re.compile(sed_split[1], regex_flags)
             except:
                 traceback.print_exc()
-                self.events.on("send.stderr").call(target=event["channel"],
-                    module_name="Sed", server=event["server"],
-                    message="Invalid regex in pattern")
+                event["stderr"].write("Invalid regex in pattern")
                 return
             replace = utils.irc.bold(sed_split[2].replace("\\/", "/"))
 
             for_user = event["user"].nickname if self._closest_setting(event,
                 "sed-sender-only", False) else None
-            line = event["channel"].buffer.find(pattern, from_self=False,
+            line = event["target"].buffer.find(pattern, from_self=False,
                 for_user=for_user, not_pattern=REGEX_SED)
             if line:
                 new_message = re.sub(pattern, replace, line.message, count)
@@ -66,6 +63,4 @@ class Module(ModuleManager.BaseModule):
                     prefix = "* %s" % line.sender
                 else:
                     prefix = "<%s>" % line.sender
-                self.events.on("send.stdout").call(target=event[
-                    "channel"], module_name="Sed", server=event["server"],
-                    message="%s %s" % (prefix, new_message))
+                event["stdout"].write("%s %s" % (prefix, new_message))
diff --git a/modules/title.py b/modules/title.py
index ba2d946c..79a9e8ab 100644
--- a/modules/title.py
+++ b/modules/title.py
@@ -44,40 +44,33 @@ class Module(ModuleManager.BaseModule):
         else:
             return None
 
-    @utils.hook("received.message.channel",
+    @utils.hook("command.regex",
         priority=EventManager.PRIORITY_MONITOR)
     def channel_message(self, event):
-        match = re.search(utils.http.REGEX_URL, event["message"])
-        if match and event["channel"].get_setting("auto-title", False):
-            is_ignored_f = short_url = self.exports.get_one("is-ignored",
-                lambda _1, _2: False)
-            if is_ignored_f(event["server"], event["user"], "title"):
-                return
-
-            url = match.group(0)
-            title = self._get_title(event["channel"], match.group(0))
-
-            if title:
-                message = title
-                if event["channel"].get_setting("auto-title-first", False):
-                    setting = "url-last-%s" % self._url_hash(url)
-                    first_details = event["channel"].get_setting(setting, None)
-
-                    if first_details:
-                        first_nickname, first_timestamp, _ = first_details
-                        timestamp_parsed = utils.iso8601_parse(first_timestamp)
-                        timestamp_human = utils.datetime_human(timestamp_parsed)
-                        message = "%s (first posted by %s at %s)" % (title,
-                            first_nickname, timestamp_human)
-                    else:
-                        event["channel"].set_setting(setting,
-                            [event["user"].nickname, utils.iso8601_format_now(),
-                            url])
+        """
+        :command: title
+        :pattern-url: 1
+        """
+        url = event["match"].group(0)
+        title = self._get_title(event["target"], event["match"].group(0))
 
+        if title:
+            message = title
+            if event["target"].get_setting("auto-title-first", False):
+                setting = "url-last-%s" % self._url_hash(url)
+                first_details = event["target"].get_setting(setting, None)
 
-                self.events.on("send.stdout").call(target=event["channel"],
-                    message=message, module_name="Title",
-                    server=event["server"])
+                if first_details:
+                    first_nickname, first_timestamp, _ = first_details
+                    timestamp_parsed = utils.iso8601_parse(first_timestamp)
+                    timestamp_human = utils.datetime_human(timestamp_parsed)
+                    message = "%s (first posted by %s at %s)" % (title,
+                        first_nickname, timestamp_human)
+                else:
+                    event["target"].set_setting(setting,
+                        [event["user"].nickname, utils.iso8601_format_now(),
+                        url])
+            event["stdout"].write(message)
 
     @utils.hook("received.command.t", alias_of="title")
     @utils.hook("received.command.title", usage="[URL]")
diff --git a/modules/youtube.py b/modules/youtube.py
index f29250db..8f01fd45 100644
--- a/modules/youtube.py
+++ b/modules/youtube.py
@@ -125,20 +125,17 @@ class Module(ModuleManager.BaseModule):
         else:
            event["stderr"].write("No search phrase provided")
 
-    @utils.hook("received.message.channel",
+    @utils.hook("command.regex",
         priority=EventManager.PRIORITY_LOW)
     def channel_message(self, event):
-        match = re.search(REGEX_YOUTUBE, event["message"])
-        if match and event["channel"].get_setting("auto-youtube", False):
-            is_ignored_f = short_url = self.exports.get_one("is-ignored",
-                lambda _1, _2: False)
-            if is_ignored_f(event["server"], event["user"], "youtube"):
-                return
-
-            youtube_id = match.group(1)
+        """
+        :command: youtube
+        :-pattern: https?://(?:www.)?
+            (?:youtu.be/|youtube.com/watch\?[\S]*v=)([\w\-]{11})
+        """
+        if event["target"].get_setting("auto-youtube", False):
+            youtube_id = event["match"].group(1)
             video_details = self.video_details(youtube_id)
             if video_details:
-                self.events.on("send.stdout").call(target=event["channel"],
-                    message=video_details, module_name="Youtube",
-                    server=event["server"])
+                event["stdout"].write(video_details)
             event.eat()