/usr/share/weechat/python/tts.py is in weechat-scripts 20180330-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Project: weechat-tts
# Homepage: https://git.hashtagueule.fr/raspbeguy/weechat-tts
# Description: Text-to-speech script.
# Requires a TTS engine such as espeak or picospeaker.
# License: MIT (see below)
#
# Copyright (c) 2017 by raspbeguy
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
import subprocess
import sys
import time
# Ensure that we are running under WeeChat.
try:
import weechat
except ImportError:
print('This script has to run under WeeChat (https://weechat.org/).')
sys.exit(1)
# Name of the script.
SCRIPT_NAME = 'tts'
# Author of the script.
SCRIPT_AUTHOR = 'raspbeguy'
# Version of the script.
SCRIPT_VERSION = '0.2.1'
# License under which the script is distributed.
SCRIPT_LICENSE = 'MIT'
# Description of the script.
SCRIPT_DESC = 'Uses a TTS engine to pronounce messages'
# Name of a function to be called when the script is unloaded.
SCRIPT_SHUTDOWN_FUNC = ''
# Used character set (utf-8 by default).
SCRIPT_CHARSET = ''
# Script options.
OPTIONS = {
'tts_engine': (
'espeak',
'TTS engine to use.'
'Valid values: espeak, festival, picospeaker'
),
'language': (
'',
'Language used by the TTS engine'
),
'tts_on_highlights': (
'on',
'Pronounce on highlights.'
),
'tts_on_privmsgs': (
'on',
'Pronounce private messages.'
),
'tts_on_filtered_messages': (
'off',
'Pronounce also filtered (hidden) messages.'
),
'tts_when_away': (
'on',
'Pronounce also when away.'
),
'tts_for_current_buffer': (
'on',
'Pronounce also for the currently active buffer.'
),
'tts_on_all_messages_in_buffers': (
'',
'A comma-separated list of buffers in which you want to '
'pronounce all messages that appear in them.'
),
'min_notification_delay': (
'500',
'A minimal delay between successive spoken message from the same '
'buffer (in milliseconds; set to 0 to show all notifications).'
),
'ignore_messages_tagged_with': (
# irc_join: Joined IRC
# irc_quit: Quit IRC
# irc_part: Parted a channel
# irc_status: Status messages
# irc_nick_back: A nick is back on server
# irc_401: No such nick/channel
# irc_402: No such server
'irc_join,irc_quit,irc_part,irc_status,irc_nick_back,irc_401,irc_402',
'A comma-separated list of message tags for which no text '
'should be said.'
),
'ignore_buffers': (
'',
'A comma-separated list of buffers from which no text should be said.'
),
'ignore_buffers_starting_with': (
'',
'A comma-separated list of buffer prefixes from which no '
'text should be said'
),
'ignore_nicks': (
'',
'A comma-separated list of nicks from which no text should '
'be said.'
),
'ignore_nicks_starting_with': (
'',
'A comma-separated list of nick prefixes from which no '
'text should be said.'
),
'tts_url': (
'off',
"Pronounce URLs."
),
'format_chan_message': (
'%(nick)s says in %(chan)s: %(body)s.',
'Text spoken for a message in a regular channel.'
),
'format_priv_message': (
'%(nick)s says: %(body)s.',
'Text spoken for a message in a private conversation.'
),
}
def default_value_of(option):
"""Returns the default value of the given option."""
return OPTIONS[option][0]
def add_default_value_to(description, default_value):
"""Adds the given default value to the given option description."""
# All descriptions end with a period, so do not add another period.
return '{} Default: {}.'.format(
description,
default_value if default_value else '""'
)
def nick_that_sent_message(tags, prefix):
"""Returns a nick that sent the message based on the given data passed to
the callback.
"""
# 'tags' is a comma-separated list of tags that WeeChat passed to the
# callback. It should contain a tag of the following form: nick_XYZ, where
# XYZ is the nick that sent the message.
for tag in tags:
if tag.startswith('nick_'):
return tag[5:]
# There is no nick in the tags, so check the prefix as a fallback.
# 'prefix' (str) is the prefix of the printed line with the message.
# Usually (but not always), it is a nick with an optional mode (e.g. on
# IRC, @ denotes an operator and + denotes a user with voice). We have to
# remove the mode (if any) before returning the nick.
# Strip also a space as some protocols (e.g. Matrix) may start prefixes
# with a space. It probably means that the nick has no mode set.
if prefix.startswith(('~', '&', '@', '%', '+', '-', ' ')):
return prefix[1:]
return prefix
def parse_tags(tags):
"""Parses the given "list" of tags (str) from WeeChat into a list.
"""
return tags.split(',')
def message_printed_callback(data, buffer, date, tags, is_displayed,
is_highlight, prefix, message):
"""A callback when a message is printed."""
is_displayed = int(is_displayed)
is_highlight = int(is_highlight)
tags = parse_tags(tags)
nick = nick_that_sent_message(tags, prefix)
if message_should_be_voiced(buffer, tags, nick, is_displayed, is_highlight):
text = prepare_tts(buffer, nick, message)
tts(text)
return weechat.WEECHAT_RC_OK
def message_should_be_voiced(buffer, tags, nick, is_displayed, is_highlight):
"""Should a notification be sent?"""
if message_should_be_voiced_disregarding_time(buffer, tags, nick,
is_displayed, is_highlight):
# The following function should be called only when the notification
# should be sent (it updates the last notification time).
if not is_below_min_notification_delay(buffer):
return True
return False
def message_should_be_voiced_disregarding_time(buffer, tags, nick,
is_displayed, is_highlight):
"""Should a notification be sent when not considering time?"""
if not nick:
# A nick is required to form a correct notification source/message.
return False
if i_am_author_of_message(buffer, nick):
return False
if not is_displayed:
if not tts_on_filtered_messages():
return False
if buffer == weechat.current_buffer():
if not tts_for_current_buffer():
return False
if is_away(buffer):
if not tts_when_away():
return False
if ignore_messages_tagged_with(tags):
return False
if ignore_messages_from_nick(nick):
return False
if ignore_messages_from_buffer(buffer):
return False
if is_private_message(buffer):
return tts_on_private_messages()
if is_highlight:
return tts_on_highlights()
if tts_on_all_messages_in_buffer(buffer):
return True
return False
def is_below_min_notification_delay(buffer):
"""Is a notification in the given buffer below the minimal delay between
successive notifications from the same buffer?
When called, this function updates the time of the last notification.
"""
# We store the time of the last notification in a buffer-local variable to
# make it persistent over the lifetime of this plugin.
LAST_NOTIFICATION_TIME_VAR = 'last_tts_time'
last_notification_time = buffer_get_float(
buffer,
'localvar_' + LAST_NOTIFICATION_TIME_VAR
)
min_notification_delay = weechat.config_get_plugin('min_notification_delay')
# min_notification_delay is in milliseconds (str). To compare it with
# last_notification_time (float in seconds), we have to convert it to
# seconds (float).
min_notification_delay = float(min_notification_delay) / 1000
current_time = time.time()
# We have to update the last notification time before returning the result.
buffer_set_float(
buffer,
'localvar_set_' + LAST_NOTIFICATION_TIME_VAR,
current_time
)
return (min_notification_delay > 0 and
current_time - last_notification_time < min_notification_delay)
def buffer_get_float(buffer, property):
"""A variant of weechat.buffer_get_x() for floats.
This variant is needed because WeeChat supports only buffer_get_string()
and buffer_get_int().
"""
value = weechat.buffer_get_string(buffer, property)
return float(value) if value else 0.0
def buffer_set_float(buffer, property, value):
"""A variant of weechat.buffer_set() for floats.
This variant is needed because WeeChat supports only integers and strings.
"""
weechat.buffer_set(buffer, property, str(value))
def names_for_buffer(buffer):
"""Returns a list of all names for the given buffer."""
# The 'buffer' parameter passed to our callback is actually the buffer's ID
# (e.g. '0x2719cf0'). We have to check its name (e.g. 'freenode.#weechat')
# and short name (e.g. '#weechat') because these are what users specify in
# their configs.
buffer_names = []
full_name = weechat.buffer_get_string(buffer, 'name')
if full_name:
buffer_names.append(full_name)
short_name = weechat.buffer_get_string(buffer, 'short_name')
if short_name:
buffer_names.append(short_name)
# Consider >channel and #channel to be equal buffer names. The reason
# is that the https://github.com/rawdigits/wee-slack plugin replaces
# '#' with '>' to indicate that someone in the buffer is typing. This
# fixes the behavior of several configuration options (e.g.
# 'tts_on_all_messages_in_buffers') when weechat_notify_send is used
# together with the wee_slack plugin.
#
# Note that this is only needed to be done for the short name. Indeed,
# the full name always stays unchanged.
if short_name.startswith('>'):
buffer_names.append('#' + short_name[1:])
return buffer_names
def tts_for_current_buffer():
"""Should we also send notifications for the current buffer?"""
return weechat.config_get_plugin('tts_for_current_buffer') == 'on'
def tts_on_highlights():
"""Should we send notifications on highlights?"""
return weechat.config_get_plugin('tts_on_highlights') == 'on'
def tts_on_private_messages():
"""Should we send notifications on private messages?"""
return weechat.config_get_plugin('tts_on_privmsgs') == 'on'
def tts_on_filtered_messages():
"""Should we also send notifications for filtered (hidden) messages?"""
return weechat.config_get_plugin('tts_on_filtered_messages') == 'on'
def tts_when_away():
"""Should we also send notifications when away?"""
return weechat.config_get_plugin('tts_when_away') == 'on'
def is_away(buffer):
"""Is the user away?"""
return weechat.buffer_get_string(buffer, 'localvar_away') != ''
def is_private_message(buffer):
"""Has a private message been sent?"""
return weechat.buffer_get_string(buffer, 'localvar_type') == 'private'
def i_am_author_of_message(buffer, nick):
"""Am I (the current WeeChat user) the author of the message?"""
return weechat.buffer_get_string(buffer, 'localvar_nick') == nick
def split_option_value(option, separator=','):
"""Splits the value of the given plugin option by the given separator and
returns the result in a list.
"""
values = weechat.config_get_plugin(option)
return [value.strip() for value in values.split(separator)]
def get_format_chan_message():
return weechat.config_get_plugin('format_chan_message')
def get_format_priv_message():
return weechat.config_get_plugin('format_priv_message')
def ignore_messages_tagged_with(tags):
"""Should notifications be ignored for a message tagged with the given
tags?
"""
ignored_tags = split_option_value('ignore_messages_tagged_with')
for ignored_tag in ignored_tags:
for tag in tags:
if tag == ignored_tag:
return True
return False
def ignore_messages_from_buffer(buffer):
"""Should notifications from the given buffer be ignored?"""
buffer_names = names_for_buffer(buffer)
for buffer_name in buffer_names:
if buffer_name and buffer_name in ignored_buffers():
return True
for buffer_name in buffer_names:
for prefix in ignored_buffer_prefixes():
if prefix and buffer_name and buffer_name.startswith(prefix):
return True
return False
def ignored_buffers():
"""A generator of buffers from which notifications should be ignored."""
for buffer in split_option_value('ignore_buffers'):
yield buffer
def ignored_buffer_prefixes():
"""A generator of buffer prefixes from which notifications should be
ignored.
"""
for prefix in split_option_value('ignore_buffers_starting_with'):
yield prefix
def ignore_messages_from_nick(nick):
"""Should notifications from the given nick be ignored?"""
if nick in ignored_nicks():
return True
for prefix in ignored_nick_prefixes():
if prefix and nick.startswith(prefix):
return True
return False
def ignored_nicks():
"""A generator of nicks from which notifications should be ignored."""
for nick in split_option_value('ignore_nicks'):
yield nick
def ignored_nick_prefixes():
"""A generator of nick prefixes from which notifications should be
ignored.
"""
for prefix in split_option_value('ignore_nicks_starting_with'):
yield prefix
def buffers_to_tts_on_all_messages():
"""A generator of buffer names in which the user wants to be notified for
all messages.
"""
for buffer in split_option_value('tts_on_all_messages_in_buffers'):
yield buffer
def tts_on_all_messages_in_buffer(buffer):
"""Does the user want to be notified for all messages in the given buffer?
"""
buffer_names = names_for_buffer(buffer)
for buf in buffers_to_tts_on_all_messages():
if buf in buffer_names:
return True
return False
def remove_urls(body):
import re
return re.sub(r'https?:\/\/\S+[\ \t]', '', body)
def prepare_tts(buffer, nick, message):
"""Prepares the text to be spoken."""
chan = ""
if is_private_message(buffer):
unformatted_message = get_format_priv_message()
else:
unformatted_message = get_format_chan_message()
chan = weechat.buffer_get_string(buffer, 'short_name')
if weechat.config_get_plugin('tts_url') == 'off':
message = remove_urls(message)
return unformatted_message % {'nick':nick, 'body': message, 'chan': chan}
def my_process_cb(data, command, return_code, out, err):
if return_code == weechat.WEECHAT_HOOK_PROCESS_ERROR:
weechat.prnt("", "Error with command '%s'" % command)
return weechat.WEECHAT_RC_OK
if return_code > 0:
weechat.prnt("", "return_code = %d" % return_code)
if err != "":
weechat.prnt("", "stderr: %s" % err)
return weechat.WEECHAT_RC_OK
def tts(text):
"""Pronounce the text"""
engine = weechat.config_get_plugin('tts_engine')
lang = weechat.config_get_plugin('language')
if engine == 'espeak':
args = {'arg1':text}
if lang:
args['arg2'] = '-v'
args['arg3'] = lang
hook = weechat.hook_process_hashtable('espeak',args,0,'my_process_cb','')
elif engine == 'festival':
args = {'stdin':'1', 'arg1':'festival', 'arg2':'--tts'}
if lang:
args['arg3'] = '--language'
args['arg4'] = lang
hook = weechat.hook_process_hashtable('festival',args,0,'my_process_cb','')
weechat.hook_set(hook, "stdin", text)
weechat.hook_set(hook, "stdin_close", "")
elif engine == 'picospeaker':
args = {'stdin':'1'}
if lang:
args['arg1'] = '-l'
args['arg2'] = lang
hook = weechat.hook_process_hashtable('picospeaker',args,0,'my_process_cb','')
weechat.hook_set(hook, "stdin", text)
weechat.hook_set(hook, "stdin_close", "")
if __name__ == '__main__':
# Registration.
weechat.register(
SCRIPT_NAME,
SCRIPT_AUTHOR,
SCRIPT_VERSION,
SCRIPT_LICENSE,
SCRIPT_DESC,
SCRIPT_SHUTDOWN_FUNC,
SCRIPT_CHARSET
)
# Initialization.
for option, (default_value, description) in OPTIONS.items():
description = add_default_value_to(description, default_value)
weechat.config_set_desc_plugin(option, description)
if not weechat.config_is_set_plugin(option):
weechat.config_set_plugin(option, default_value)
# Catch all messages on all buffers and strip colors from them before
# passing them into the callback.
weechat.hook_print('', '', '', 1, 'message_printed_callback', '')
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