summaryrefslogtreecommitdiff
path: root/src/config.py
blob: 0504dbd59ec532395d87497b5382a0775a19b6ba (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
"""
Defines the global config instance, used to get or set (and save) values
from/to the config file.

This module has the particularity that some imports and global variables
are delayed because it would mean doing an incomplete setup of the python
loggers.

TODO: get http://bugs.python.org/issue1410680 fixed, one day, in order
to remove our ugly custom I/O methods.
"""

DEFSECTION = "Poezio"

import logging.config
import os
import sys
from gettext import gettext as _

from configparser import RawConfigParser, NoOptionError, NoSectionError
from os import environ, makedirs, path, remove
from shutil import copy2
from args import parse_args

DEFAULT_CONFIG = {
    'Poezio': {
        'ack_message_receipts': True,
        'add_space_after_completion': True,
        'after_completion': ',',
        'alternative_nickname': '',
        'auto_reconnect': False,
        'autorejoin_delay': '5',
        'autorejoin': False,
        'beep_on': 'highlight private invite',
        'ca_cert_path': '',
        'certificate': '',
        'ciphers': 'HIGH+kEDH:HIGH+kEECDH:HIGH:!PSK:!SRP:!3DES:!aNULL',
        'connection_check_interval': 60,
        'connection_timeout_delay': 10,
        'create_gaps': False,
        'custom_host': '',
        'custom_port': '',
        'default_nick': '',
        'display_activity_notifications': False,
        'display_gaming_notifications': False,
        'display_mood_notifications': False,
        'display_tune_notifications': False,
        'display_user_color_in_join_part': True,
        'enable_carbons': False,
        'enable_user_activity': True,
        'enable_user_gaming': True,
        'enable_user_mood': True,
        'enable_user_nick': True,
        'enable_user_tune': True,
        'enable_vertical_tab_list': False,
        'enable_xhtml_im': True,
        'exec_remote': False,
        'extract_inline_images': True,
        'filter_info_messages': '',
        'force_encryption': True,
        'group_corrections': True,
        'hide_exit_join': -1,
        'hide_status_change': 120,
        'hide_user_list': False,
        'highlight_on': '',
        'ignore_certificate': False,
        'ignore_private': False,
        'information_buffer_popup_on': 'error roster warning help info',
        'jid': '',
        'lang': 'en',
        'lazy_resize': True,
        'load_log': 10,
        'log_dir': '',
        'logfile': 'logs',
        'log_errors': True,
        'max_lines_in_memory': 2048,
        'max_messages_in_memory': 2048,
        'max_nick_length': 25,
        'muc_history_length': 50,
        'open_all_bookmarks': False,
        'password': '',
        'plugins_autoload': '',
        'plugins_conf_dir': '',
        'plugins_dir': '',
        'popup_time': 4,
        'private_auto_response': '',
        'remote_fifo_path': './',
        'request_message_receipts': True,
        'resource': '',
        'rooms': '',
        'roster_group_sort': 'name',
        'roster_show_offline': False,
        'roster_sort': 'jid:show',
        'save_status': True,
        'send_chat_states': True,
        'send_initial_presence': True,
        'send_os_info': True,
        'send_poezio_info': True,
        'send_time': True,
        'separate_history': False,
        'server': 'anon.jeproteste.info',
        'show_composing_tabs': 'direct',
        'show_inactive_tabs': True,
        'show_muc_jid': True,
        'show_roster_jids': True,
        'show_roster_subscriptions': '',
        'show_s2s_errors': True,
        'show_tab_names': False,
        'show_tab_numbers': True,
        'show_timestamps': True,
        'show_useless_separator': False,
        'status': '',
        'status_message': '',
        'theme': 'default',
        'themes_dir': '',
        'tmp_image_dir': '',
        'use_bookmarks_method': '',
        'use_log': False,
        'use_remote_bookmarks': True,
        'user_list_sort': 'desc',
        'use_tab_nicks': True,
        'vertical_tab_list_size': 20,
        'vertical_tab_list_sort': 'desc',
        'whitespace_interval': 300,
        'words': ''
    },
    'bindings': {
        'M-i': '^I'
    },
    'var': {
        'folded_roster_groups': '',
        'info_win_height': 2
    }
}

class Config(RawConfigParser):
    """
    load/save the config to a file
    """
    def __init__(self, file_name, default=None):
        RawConfigParser.__init__(self, None)
        # make the options case sensitive
        self.optionxform = str
        self.file_name = file_name
        self.read_file()
        self.default = default

    def read_file(self):
        try:
            RawConfigParser.read(self, self.file_name, encoding='utf-8')
        except TypeError: # python < 3.2 sucks
            RawConfigParser.read(self, self.file_name)
        # Check config integrity and fix it if it’s wrong
        for section in ('bindings', 'var'):
            if not self.has_section(section):
                self.add_section(section)

    def get(self, option, default='', section=DEFSECTION):
        """
        get a value from the config but return
        a default value if it is not found
        The type of default defines the type
        returned
        """
        if self.default and not default \
                and self.default.get(section, {}).get(option) is not None:
            default = self.default[section][option]
        try:
            if type(default) == int:
                res = self.getint(option, section)
            elif type(default) == float:
                res = self.getfloat(option, section)
            elif type(default) == bool:
                res = self.getboolean(option, section)
            else:
                res = self.getstr(option, section)
        except (NoOptionError, NoSectionError, ValueError, AttributeError):
            return default
        if res is None:
            return default
        return res

    def get_by_tabname(self, option, tabname,
                       fallback=True, fallback_server=True, default=''):
        """
        Try to get the value for the option. First we look in
        a section named `tabname`, if the option is not present
        in the section, we search for the global option if fallback is
        True. And we return `default` as a fallback as a last resort.
        """
        if self.default and (not default) and fallback:
            default = self.default.get(DEFSECTION, {}).get(option, '')
        if tabname in self.sections():
            if option in self.options(tabname):
                # We go the tab-specific option
                return self.get(option, default, tabname)
        if fallback_server:
            return self.get_by_servname(tabname, option, default, fallback)
        if fallback:
            # We fallback to the global option
            return self.get(option, default)
        return default

    def get_by_servname(self, jid, option, default, fallback=True):
        """
        Try to get the value of an option for a server
        """
        server = safeJID(jid).server
        if server:
            server = '@' + server
            if server in self.sections() and option in self.options(server):
                return self.get(option, default, server)
        if fallback:
            return self.get(option, default)
        return default


    def __get(self, option, section=DEFSECTION, **kwargs):
        """
        facility for RawConfigParser.get
        """
        return RawConfigParser.get(self, section, option, **kwargs)

    def _get(self, section, conv, option, **kwargs):
        """
        Redirects RawConfigParser._get
        """
        return conv(self.__get(option, section, **kwargs))

    def getstr(self, option, section=DEFSECTION):
        """
        get a value and returns it as a string
        """
        return self.__get(option, section)

    def getint(self, option, section=DEFSECTION):
        """
        get a value and returns it as an int
        """
        return RawConfigParser.getint(self, section, option)

    def getfloat(self, option, section=DEFSECTION):
        """
        get a value and returns it as a float
        """
        return RawConfigParser.getfloat(self, section, option)

    def getboolean(self, option, section=DEFSECTION):
        """
        get a value and returns it as a boolean
        """
        return RawConfigParser.getboolean(self, section, option)

    def write_in_file(self, section, option, value):
        """
        Our own way to save write the value in the file
        Just find the right section, and then find the
        right option, and edit it.
        """
        result = self._parse_file()
        if not result:
            return False
        else:
            sections, result_lines = result

        if not section in sections:
            result_lines.append('[%s]' % section)
            result_lines.append('%s = %s' % (option, value))
        else:
            begin, end = sections[section]
            pos = find_line(result_lines, begin, end, option)

            if pos is -1:
                result_lines.insert(end, '%s = %s' % (option, value))
            else:
                result_lines[pos] = '%s = %s' % (option, value)

        return self._write_file(result_lines)

    def remove_in_file(self, section, option):
        """
        Our own way to remove an option from the file.
        """
        result = self._parse_file()
        if not result:
            return False
        else:
            sections, result_lines = result

        if not section in sections:
            log.error('Tried to remove the option %s from a non-'
                      'existing section (%s)', option, section)
            return True
        else:
            begin, end = sections[section]
            pos = find_line(result_lines, begin, end, option)

            if pos is -1:
                log.error('Tried to remove a non-existing option %s'
                          ' from section %s', option, section)
                return True
            else:
                del result_lines[pos]

        return self._write_file(result_lines)

    def _write_file(self, lines):
        """
        Write the config file, write to a temporary file
        before copying it to the final destination
        """
        try:
            prefix, file = path.split(self.file_name)
            filename = path.join(prefix, '.%s.tmp' % file)
            fd = os.fdopen(
                    os.open(
                        filename,
                        os.O_WRONLY | os.O_CREAT,
                        0o600),
                    'w')
            for line in lines:
                fd.write('%s\n' % line)
            fd.close()
            copy2(filename, self.file_name)
            remove(filename)
        except:
            success = False
            log.error('Unable to save the config file.', exc_info=True)
        else:
            success = True
        return success

    def _parse_file(self):
        """
        Parse the config file and return the list of sections with
        their start and end positions, and the lines in the file.

        Duplicate sections are preserved but ignored for the parsing.

        Returns an empty tuple if reading fails
        """
        if file_ok(self.file_name):
            try:
                with open(self.file_name, 'r', encoding='utf-8') as df:
                    lines_before = [line.strip() for line in df]
            except:
                log.error('Unable to read the config file %s',
                        self.file_name,
                        exc_info=True)
                return tuple()
        else:
            lines_before = []

        sections = {}
        duplicate_section = False
        current_section = ''
        current_line = 0

        for line in lines_before:
            if line.startswith('['):
                if not duplicate_section and current_section:
                    sections[current_section][1] = current_line

                duplicate_section = False
                current_section = line[1:-1]

                if current_section in sections:
                    log.error('Error while reading the configuration file,'
                              ' skipping until next section')
                    duplicate_section = True
                else:
                    sections[current_section] = [current_line, current_line]

            current_line += 1
        if not duplicate_section and current_section:
            sections[current_section][1] = current_line

        return (sections, lines_before)

    def set_and_save(self, option, value, section=DEFSECTION):
        """
        set the value in the configuration then save it
        to the file
        """
        # Special case for a 'toggle' value. We take the current value
        # and set the opposite. Warning if the no current value exists
        # or it is not a bool.
        if value == "toggle":
            current = self.get(option, "", section)
            if isinstance(current, bool):
                value = str(not current)
            else:
                if current.lower() == "false":
                    value = "true"
                elif current.lower() == "true":
                    value = "false"
                else:
                    return (_('Could not toggle option: %s.'
                              ' Current value is %s.') %
                                  (option, current or _("empty")),
                            'Warning')
        if self.has_section(section):
            RawConfigParser.set(self, section, option, value)
        else:
            self.add_section(section)
            RawConfigParser.set(self, section, option, value)
        if not self.write_in_file(section, option, value):
            return (_('Unable to write in the config file'), 'Error')
        return ("%s=%s" % (option, value), 'Info')

    def remove_and_save(self, option, section=DEFSECTION):
        """
        Remove an option and then save it the config file
        """
        if self.has_section(section):
            RawConfigParser.remove_option(self, section, option)
        if not self.remove_in_file(section, option):
            return (_('Unable to save the config file'), 'Error')
        return (_('Option %s deleted') % option, 'Info')

    def silent_set(self, option, value, section=DEFSECTION):
        """
        Set a value, save, and return True on success and False on failure
        """
        if self.has_section(section):
            RawConfigParser.set(self, section, option, value)
        else:
            self.add_section(section)
            RawConfigParser.set(self, section, option, value)
        return self.write_in_file(section, option, value)

    def set(self, option, value, section=DEFSECTION):
        """
        Set the value of an option temporarily
        """
        try:
            RawConfigParser.set(self, section, option, value)
        except NoSectionError:
            pass

    def to_dict(self):
        """
        Returns a dict of the form {section: {option: value, option: value}, …}
        """
        res = {}
        for section in self.sections():
            res[section] = {}
            for option in self.options(section):
                res[section][option] = self.get(option, "", section)
        return res


def find_line(lines, start, end, option):
    """
    Get the number of the line containing the option in the
    relevant part of the config file.

    Returns -1 if the option isn’t found
    """
    current = start
    for line in lines[start:end]:
        if (line.startswith('%s ' % option) or
                line.startswith('%s=' % option)):
            return current
        current += 1
    return -1

def file_ok(filepath):
    """
    Returns True if the file exists and is readable and writeable,
    False otherwise.
    """
    val = path.exists(filepath)
    val &= os.access(filepath, os.R_OK | os.W_OK)
    return bool(val)

def check_create_config_dir():
    """
    create the configuration directory if it doesn't exist
    """
    CONFIG_HOME = environ.get("XDG_CONFIG_HOME")
    if not CONFIG_HOME:
        CONFIG_HOME = path.join(environ.get('HOME'), '.config')
    CONFIG_PATH = path.join(CONFIG_HOME, 'poezio')

    try:
        makedirs(CONFIG_PATH)
    except OSError:
        pass
    return CONFIG_PATH

def check_create_cache_dir():
    """
    create the cache directory if it doesn't exist
    also create the subdirectories
    """
    global CACHE_DIR
    CACHE_HOME = environ.get("XDG_CACHE_HOME")
    if not CACHE_HOME:
        CACHE_HOME = path.join(environ.get('HOME'), '.cache')
    CACHE_DIR = path.join(CACHE_HOME, 'poezio')

    try:
        makedirs(CACHE_DIR)
        makedirs(path.join(CACHE_DIR, 'images'))
    except OSError:
        pass

def run_cmdline_args(CONFIG_PATH):
    "Parse the command line arguments"
    global options
    options = parse_args(CONFIG_PATH)

    # Copy a default file if none exists
    if not path.isfile(options.filename):
        default = path.join(path.dirname(__file__),
                            '../data/default_config.cfg')
        other = path.join(path.dirname(__file__), 'default_config.cfg')
        if path.isfile(default):
            copy2(default, options.filename)
        elif path.isfile(other):
            copy2(other, options.filename)
        global firstrun
        firstrun = True

def create_global_config():
    "Create the global config object, or crash"
    try:
        global config
        config = Config(options.filename, DEFAULT_CONFIG)
    except:
        import traceback
        sys.stderr.write('Poezio was unable to read or'
                         ' parse the config file.\n')
        traceback.print_exc(limit=0)
        sys.exit(1)

def check_create_log_dir():
    "Create the poezio logging directory if it doesn’t exist"
    global LOG_DIR
    LOG_DIR = config.get('log_dir')

    if not LOG_DIR:

        data_dir = environ.get('XDG_DATA_HOME')
        if not data_dir:
            home = environ.get('HOME')
            data_dir = path.join(home, '.local', 'share')

        LOG_DIR = path.join(data_dir, 'poezio')

    LOG_DIR = path.expanduser(LOG_DIR)

    try:
        makedirs(LOG_DIR)
    except:
        pass

def setup_logging():
    "Change the logging config according to the cmdline options and config"
    if config.get('log_errors'):
        LOGGING_CONFIG['root']['handlers'].append('error')
        LOGGING_CONFIG['handlers']['error'] = {
                'level': 'ERROR',
                'class': 'logging.FileHandler',
                'filename': path.join(LOG_DIR, 'errors.log'),
                'formatter': 'simple',
            }

    if options.debug:
        LOGGING_CONFIG['root']['handlers'].append('debug')
        LOGGING_CONFIG['handlers']['debug'] = {
                'level':'DEBUG',
                'class':'logging.FileHandler',
                'filename': options.debug,
                'formatter': 'simple',
            }


    if LOGGING_CONFIG['root']['handlers']:
        logging.config.dictConfig(LOGGING_CONFIG)
    else:
        logging.basicConfig(level=logging.CRITICAL)

    global log
    log = logging.getLogger(__name__)

def post_logging_setup():
    # common imports sleekxmpp, which creates then its loggers, so
    # it needs to be after logger configuration
    from common import safeJID as JID
    global safeJID
    safeJID = JID

LOGGING_CONFIG = {
    'version': 1,
    'disable_existing_loggers': True,
    'formatters': {
        'simple': {
            'format': '%(asctime)s %(levelname)s:%(module)s:%(message)s'
        }
    },
    'handlers': {
    },
    'root': {
            'handlers': [],
            'propagate': True,
            'level': 'DEBUG',
    }
}

# True if this is the first run, in this case we will display
# some help in the info buffer
firstrun = False

# Global config object. Is setup in poezio.py
config = None

# The logger object for this module
log = None

# The command-line options
options = None

# delayed import from common.py
safeJID = None

# the global log dir
LOG_DIR = ''

# the global cache dir
CACHE_DIR = ''