8d03f7bb3e299752864a3c37e96f57ee99287130
1 # Roundup Issue Tracker configuration support
2 #
3 # $Id: configuration.py,v 1.51 2008-09-01 02:30:06 richard Exp $
4 #
5 __docformat__ = "restructuredtext"
7 import ConfigParser
8 import getopt
9 import imp
10 import logging, logging.config
11 import os
12 import re
13 import sys
14 import time
15 import smtplib
17 import roundup.date
19 # XXX i don't think this module needs string translation, does it?
21 ### Exceptions
23 class ConfigurationError(Exception):
24 pass
26 class NoConfigError(ConfigurationError):
28 """Raised when configuration loading fails
30 Constructor parameters: path to the directory that was used as HOME
32 """
34 def __str__(self):
35 return "No valid configuration files found in directory %s" \
36 % self.args[0]
38 class InvalidOptionError(ConfigurationError, KeyError, AttributeError):
40 """Attempted access to non-existing configuration option
42 Configuration options may be accessed as configuration object
43 attributes or items. So this exception instances also are
44 instances of KeyError (invalid item access) and AttributeError
45 (invalid attribute access).
47 Constructor parameter: option name
49 """
51 def __str__(self):
52 return "Unsupported configuration option: %s" % self.args[0]
54 class OptionValueError(ConfigurationError, ValueError):
56 """Raised upon attempt to assign an invalid value to config option
58 Constructor parameters: Option instance, offending value
59 and optional info string.
61 """
63 def __str__(self):
64 _args = self.args
65 _rv = "Invalid value for %(option)s: %(value)r" % {
66 "option": _args[0].name, "value": _args[1]}
67 if len(_args) > 2:
68 _rv += "\n".join(("",) + _args[2:])
69 return _rv
71 class OptionUnsetError(ConfigurationError):
73 """Raised when no Option value is available - neither set, nor default
75 Constructor parameters: Option instance.
77 """
79 def __str__(self):
80 return "%s is not set and has no default" % self.args[0].name
82 class UnsetDefaultValue:
84 """Special object meaning that default value for Option is not specified"""
86 def __str__(self):
87 return "NO DEFAULT"
89 NODEFAULT = UnsetDefaultValue()
91 ### Option classes
93 class Option:
95 """Single configuration option.
97 Options have following attributes:
99 config
100 reference to the containing Config object
101 section
102 name of the section in the tracker .ini file
103 setting
104 option name in the tracker .ini file
105 default
106 default option value
107 description
108 option description. Makes a comment in the tracker .ini file
109 name
110 "canonical name" of the configuration option.
111 For items in the 'main' section this is uppercased
112 'setting' name. For other sections, the name is
113 composed of the section name and the setting name,
114 joined with underscore.
115 aliases
116 list of "also known as" names. Used to access the settings
117 by old names used in previous Roundup versions.
118 "Canonical name" is also included.
120 The name and aliases are forced to be uppercase.
121 The setting name is forced to lowercase.
123 """
125 class_description = None
127 def __init__(self, config, section, setting,
128 default=NODEFAULT, description=None, aliases=None
129 ):
130 self.config = config
131 self.section = section
132 self.setting = setting.lower()
133 self.default = default
134 self.description = description
135 self.name = setting.upper()
136 if section != "main":
137 self.name = "_".join((section.upper(), self.name))
138 if aliases:
139 self.aliases = [alias.upper() for alias in list(aliases)]
140 else:
141 self.aliases = []
142 self.aliases.insert(0, self.name)
143 # convert default to internal representation
144 if default is NODEFAULT:
145 _value = default
146 else:
147 _value = self.str2value(default)
148 # value is private. use get() and set() to access
149 self._value = self._default_value = _value
151 def str2value(self, value):
152 """Return 'value' argument converted to internal representation"""
153 return value
155 def _value2str(self, value):
156 """Return 'value' argument converted to external representation
158 This is actual conversion method called only when value
159 is not NODEFAULT. Heirs with different conversion rules
160 override this method, not the public .value2str().
162 """
163 return str(value)
165 def value2str(self, value=NODEFAULT, current=0):
166 """Return 'value' argument converted to external representation
168 If 'current' is True, use current option value.
170 """
171 if current:
172 value = self._value
173 if value is NODEFAULT:
174 return str(value)
175 else:
176 return self._value2str(value)
178 def get(self):
179 """Return current option value"""
180 if self._value is NODEFAULT:
181 raise OptionUnsetError(self)
182 return self._value
184 def set(self, value):
185 """Update the value"""
186 self._value = self.str2value(value)
188 def reset(self):
189 """Reset the value to default"""
190 self._value = self._default_value
192 def isdefault(self):
193 """Return True if current value is the default one"""
194 return self._value == self._default_value
196 def isset(self):
197 """Return True if the value is available (either set or default)"""
198 return self._value != NODEFAULT
200 def __str__(self):
201 return self.value2str(self._value)
203 def __repr__(self):
204 if self.isdefault():
205 _format = "<%(class)s %(name)s (default): %(value)s>"
206 else:
207 _format = "<%(class)s %(name)s (default: %(default)s): %(value)s>"
208 return _format % {
209 "class": self.__class__.__name__,
210 "name": self.name,
211 "default": self.value2str(self._default_value),
212 "value": self.value2str(self._value),
213 }
215 def format(self):
216 """Return .ini file fragment for this option"""
217 _desc_lines = []
218 for _description in (self.description, self.class_description):
219 if _description:
220 _desc_lines.extend(_description.split("\n"))
221 # comment out the setting line if there is no value
222 if self.isset():
223 _is_set = ""
224 else:
225 _is_set = "#"
226 _rv = "# %(description)s\n# Default: %(default)s\n" \
227 "%(is_set)s%(name)s = %(value)s\n" % {
228 "description": "\n# ".join(_desc_lines),
229 "default": self.value2str(self._default_value),
230 "name": self.setting,
231 "value": self.value2str(self._value),
232 "is_set": _is_set
233 }
234 return _rv
236 def load_ini(self, config):
237 """Load value from ConfigParser object"""
238 if config.has_option(self.section, self.setting):
239 self.set(config.get(self.section, self.setting))
241 def load_pyconfig(self, config):
242 """Load value from old-style config (python module)"""
243 for _name in self.aliases:
244 if hasattr(config, _name):
245 self.set(getattr(config, _name))
246 break
248 class BooleanOption(Option):
250 """Boolean option: yes or no"""
252 class_description = "Allowed values: yes, no"
254 def _value2str(self, value):
255 if value:
256 return "yes"
257 else:
258 return "no"
260 def str2value(self, value):
261 if type(value) == type(""):
262 _val = value.lower()
263 if _val in ("yes", "true", "on", "1"):
264 _val = 1
265 elif _val in ("no", "false", "off", "0"):
266 _val = 0
267 else:
268 raise OptionValueError(self, value, self.class_description)
269 else:
270 _val = value and 1 or 0
271 return _val
273 class WordListOption(Option):
275 """List of strings"""
277 class_description = "Allowed values: comma-separated list of words"
279 def _value2str(self, value):
280 return ','.join(value)
282 def str2value(self, value):
283 return value.split(',')
285 class RunDetectorOption(Option):
287 """When a detector is run: always, never or for new items only"""
289 class_description = "Allowed values: yes, no, new"
291 def str2value(self, value):
292 _val = value.lower()
293 if _val in ("yes", "no", "new"):
294 return _val
295 else:
296 raise OptionValueError(self, value, self.class_description)
298 class MailAddressOption(Option):
300 """Email address
302 Email addresses may be either fully qualified or local.
303 In the latter case MAIL_DOMAIN is automatically added.
305 """
307 def get(self):
308 _val = Option.get(self)
309 if "@" not in _val:
310 _val = "@".join((_val, self.config["MAIL_DOMAIN"]))
311 return _val
313 class FilePathOption(Option):
315 """File or directory path name
317 Paths may be either absolute or relative to the HOME.
319 """
321 class_description = "The path may be either absolute or relative\n" \
322 "to the directory containig this config file."
324 def get(self):
325 _val = Option.get(self)
326 if _val and not os.path.isabs(_val):
327 _val = os.path.join(self.config["HOME"], _val)
328 return _val
330 class FloatNumberOption(Option):
332 """Floating point numbers"""
334 def str2value(self, value):
335 try:
336 return float(value)
337 except ValueError:
338 raise OptionValueError(self, value,
339 "Floating point number required")
341 def _value2str(self, value):
342 _val = str(value)
343 # strip fraction part from integer numbers
344 if _val.endswith(".0"):
345 _val = _val[:-2]
346 return _val
348 class IntegerNumberOption(Option):
350 """Integer numbers"""
352 def str2value(self, value):
353 try:
354 return int(value)
355 except ValueError:
356 raise OptionValueError(self, value, "Integer number required")
358 class OctalNumberOption(Option):
360 """Octal Integer numbers"""
362 def str2value(self, value):
363 try:
364 return int(value, 8)
365 except ValueError:
366 raise OptionValueError(self, value, "Octal Integer number required")
368 def _value2str(self, value):
369 return oct(value)
371 class NullableOption(Option):
373 """Option that is set to None if its string value is one of NULL strings
375 Default nullable strings list contains empty string only.
376 There is constructor parameter allowing to specify different nullables.
378 Conversion to external representation returns the first of the NULL
379 strings list when the value is None.
381 """
383 NULL_STRINGS = ("",)
385 def __init__(self, config, section, setting,
386 default=NODEFAULT, description=None, aliases=None,
387 null_strings=NULL_STRINGS
388 ):
389 self.null_strings = list(null_strings)
390 Option.__init__(self, config, section, setting, default,
391 description, aliases)
393 def str2value(self, value):
394 if value in self.null_strings:
395 return None
396 else:
397 return value
399 def _value2str(self, value):
400 if value is None:
401 return self.null_strings[0]
402 else:
403 return value
405 class NullableFilePathOption(NullableOption, FilePathOption):
407 # .get() and class_description are from FilePathOption,
408 get = FilePathOption.get
409 class_description = FilePathOption.class_description
410 # everything else taken from NullableOption (inheritance order)
412 class TimezoneOption(Option):
414 class_description = \
415 "If pytz module is installed, value may be any valid\n" \
416 "timezone specification (e.g. EET or Europe/Warsaw).\n" \
417 "If pytz is not installed, value must be integer number\n" \
418 "giving local timezone offset from UTC in hours."
420 def str2value(self, value):
421 try:
422 roundup.date.get_timezone(value)
423 except KeyError:
424 raise OptionValueError(self, value,
425 "Timezone name or numeric hour offset required")
426 return value
428 class RegExpOption(Option):
430 """Regular Expression option (value is Regular Expression Object)"""
432 class_description = "Value is Python Regular Expression (UTF8-encoded)."
434 RE_TYPE = type(re.compile(""))
436 def __init__(self, config, section, setting,
437 default=NODEFAULT, description=None, aliases=None,
438 flags=0,
439 ):
440 self.flags = flags
441 Option.__init__(self, config, section, setting, default,
442 description, aliases)
444 def _value2str(self, value):
445 assert isinstance(value, self.RE_TYPE)
446 return value.pattern
448 def str2value(self, value):
449 if not isinstance(value, unicode):
450 value = str(value)
451 # if it is 7-bit ascii, use it as string,
452 # otherwise convert to unicode.
453 try:
454 value.decode("ascii")
455 except UnicodeError:
456 value = value.decode("utf-8")
457 return re.compile(value, self.flags)
459 ### Main configuration layout.
460 # Config is described as a sequence of sections,
461 # where each section name is followed by a sequence
462 # of Option definitions. Each Option definition
463 # is a sequence containing class name and constructor
464 # parameters, starting from the setting name:
465 # setting, default, [description, [aliases]]
466 # Note: aliases should only exist in historical options for backwards
467 # compatibility - new options should *not* have aliases!
468 SETTINGS = (
469 ("main", (
470 (FilePathOption, "database", "db", "Database directory path."),
471 (FilePathOption, "templates", "html",
472 "Path to the HTML templates directory."),
473 (NullableFilePathOption, "static_files", "",
474 "Path to directory holding additional static files\n"
475 "available via Web UI. This directory may contain\n"
476 "sitewide images, CSS stylesheets etc. and is searched\n"
477 "for these files prior to the TEMPLATES directory\n"
478 "specified above. If this option is not set, all static\n"
479 "files are taken from the TEMPLATES directory"),
480 (MailAddressOption, "admin_email", "roundup-admin",
481 "Email address that roundup will complain to if it runs\n"
482 "into trouble.\n"
483 "If no domain is specified then the config item\n"
484 "mail -> domain is added."),
485 (MailAddressOption, "dispatcher_email", "roundup-admin",
486 "The 'dispatcher' is a role that can get notified\n"
487 "of new items to the database.\n"
488 "It is used by the ERROR_MESSAGES_TO config setting.\n"
489 "If no domain is specified then the config item\n"
490 "mail -> domain is added."),
491 (Option, "email_from_tag", "",
492 "Additional text to include in the \"name\" part\n"
493 "of the From: address used in nosy messages.\n"
494 "If the sending user is \"Foo Bar\", the From: line\n"
495 "is usually: \"Foo Bar\" <issue_tracker@tracker.example>\n"
496 "the EMAIL_FROM_TAG goes inside the \"Foo Bar\" quotes like so:\n"
497 "\"Foo Bar EMAIL_FROM_TAG\" <issue_tracker@tracker.example>"),
498 (Option, "new_web_user_roles", "User",
499 "Roles that a user gets when they register"
500 " with Web User Interface.\n"
501 "This is a comma-separated string of role names"
502 " (e.g. 'Admin,User')."),
503 (Option, "new_email_user_roles", "User",
504 "Roles that a user gets when they register"
505 " with Email Gateway.\n"
506 "This is a comma-separated string of role names"
507 " (e.g. 'Admin,User')."),
508 (Option, "error_messages_to", "user",
509 # XXX This description needs better wording,
510 # with explicit allowed values list.
511 "Send error message emails to the dispatcher, user, or both?\n"
512 "The dispatcher is configured using the DISPATCHER_EMAIL"
513 " setting."),
514 (Option, "html_version", "html4",
515 "HTML version to generate. The templates are html4 by default.\n"
516 "If you wish to make them xhtml, then you'll need to change this\n"
517 "var to 'xhtml' too so all auto-generated HTML is compliant.\n"
518 "Allowed values: html4, xhtml"),
519 (TimezoneOption, "timezone", "UTC", "Default timezone offset,"
520 " applied when user's timezone is not set.",
521 ["DEFAULT_TIMEZONE"]),
522 (BooleanOption, "instant_registration", "no",
523 "Register new users instantly, or require confirmation via\n"
524 "email?"),
525 (BooleanOption, "email_registration_confirmation", "yes",
526 "Offer registration confirmation by email or only through the web?"),
527 (WordListOption, "indexer_stopwords", "",
528 "Additional stop-words for the full-text indexer specific to\n"
529 "your tracker. See the indexer source for the default list of\n"
530 "stop-words (eg. A,AND,ARE,AS,AT,BE,BUT,BY, ...)"),
531 (OctalNumberOption, "umask", "02",
532 "Defines the file creation mode mask."),
533 )),
534 ("tracker", (
535 (Option, "name", "Roundup issue tracker",
536 "A descriptive name for your roundup instance."),
537 (Option, "web", NODEFAULT,
538 "The web address that the tracker is viewable at.\n"
539 "This will be included in information"
540 " sent to users of the tracker.\n"
541 "The URL MUST include the cgi-bin part or anything else\n"
542 "that is required to get to the home page of the tracker.\n"
543 "You MUST include a trailing '/' in the URL."),
544 (MailAddressOption, "email", "issue_tracker",
545 "Email address that mail to roundup should go to.\n"
546 "If no domain is specified then mail_domain is added."),
547 (NullableOption, "language", "",
548 "Default locale name for this tracker.\n"
549 "If this option is not set, the language is determined\n"
550 "by OS environment variable LANGUAGE, LC_ALL, LC_MESSAGES,\n"
551 "or LANG, in that order of preference."),
552 )),
553 ("web", (
554 (BooleanOption, 'http_auth', "yes",
555 "Whether to use HTTP Basic Authentication, if present.\n"
556 "Roundup will use either the REMOTE_USER or HTTP_AUTHORIZATION\n"
557 "variables supplied by your web server (in that order).\n"
558 "Set this option to 'no' if you do not wish to use HTTP Basic\n"
559 "Authentication in your web interface."),
560 (BooleanOption, 'use_browser_language', "yes",
561 "Whether to use HTTP Accept-Language, if present.\n"
562 "Browsers send a language-region preference list.\n"
563 "It's usually set in the client's browser or in their\n"
564 "Operating System.\n"
565 "Set this option to 'no' if you want to ignore it."),
566 (BooleanOption, "debug", "no",
567 "Setting this option makes Roundup display error tracebacks\n"
568 "in the user's browser rather than emailing them to the\n"
569 "tracker admin."),
570 )),
571 ("rdbms", (
572 (Option, 'name', 'roundup',
573 "Name of the database to use.",
574 ['MYSQL_DBNAME']),
575 (NullableOption, 'host', 'localhost',
576 "Database server host.",
577 ['MYSQL_DBHOST']),
578 (NullableOption, 'port', '',
579 "TCP port number of the database server.\n"
580 "Postgresql usually resides on port 5432 (if any),\n"
581 "for MySQL default port number is 3306.\n"
582 "Leave this option empty to use backend default"),
583 (NullableOption, 'user', 'roundup',
584 "Database user name that Roundup should use.",
585 ['MYSQL_DBUSER']),
586 (NullableOption, 'password', 'roundup',
587 "Database user password.",
588 ['MYSQL_DBPASSWORD']),
589 (NullableOption, 'read_default_file', '~/.my.cnf',
590 "Name of the MySQL defaults file.\n"
591 "Only used in MySQL connections."),
592 (NullableOption, 'read_default_group', 'roundup',
593 "Name of the group to use in the MySQL defaults file (.my.cnf).\n"
594 "Only used in MySQL connections."),
595 (IntegerNumberOption, 'cache_size', '100',
596 "Size of the node cache (in elements)"),
597 ), "Settings in this section are used"
598 " by RDBMS backends only"
599 ),
600 ("logging", (
601 (FilePathOption, "config", "",
602 "Path to configuration file for standard Python logging module.\n"
603 "If this option is set, logging configuration is loaded\n"
604 "from specified file; options 'filename' and 'level'\n"
605 "in this section are ignored."),
606 (FilePathOption, "filename", "",
607 "Log file name for minimal logging facility built into Roundup.\n"
608 "If no file name specified, log messages are written on stderr.\n"
609 "If above 'config' option is set, this option has no effect."),
610 (Option, "level", "ERROR",
611 "Minimal severity level of messages written to log file.\n"
612 "If above 'config' option is set, this option has no effect.\n"
613 "Allowed values: DEBUG, INFO, WARNING, ERROR"),
614 )),
615 ("mail", (
616 (Option, "domain", NODEFAULT,
617 "The email domain that admin_email, issue_tracker and\n"
618 "dispatcher_email belong to.\n"
619 "This domain is added to those config items if they don't\n"
620 "explicitly include a domain.\n"
621 "Do not include the '@' symbol."),
622 (Option, "host", NODEFAULT,
623 "SMTP mail host that roundup will use to send mail",
624 ["MAILHOST"],),
625 (Option, "username", "", "SMTP login name.\n"
626 "Set this if your mail host requires authenticated access.\n"
627 "If username is not empty, password (below) MUST be set!"),
628 (Option, "password", NODEFAULT, "SMTP login password.\n"
629 "Set this if your mail host requires authenticated access."),
630 (IntegerNumberOption, "port", smtplib.SMTP_PORT,
631 "Default port to send SMTP on.\n"
632 "Set this if your mail server runs on a different port."),
633 (NullableOption, "local_hostname", '',
634 "The local hostname to use during SMTP transmission.\n"
635 "Set this if your mail server requires something specific."),
636 (BooleanOption, "tls", "no",
637 "If your SMTP mail host provides or requires TLS\n"
638 "(Transport Layer Security) then set this option to 'yes'."),
639 (NullableFilePathOption, "tls_keyfile", "",
640 "If TLS is used, you may set this option to the name\n"
641 "of a PEM formatted file that contains your private key."),
642 (NullableFilePathOption, "tls_certfile", "",
643 "If TLS is used, you may set this option to the name\n"
644 "of a PEM formatted certificate chain file."),
645 (Option, "charset", "utf-8",
646 "Character set to encode email headers with.\n"
647 "We use utf-8 by default, as it's the most flexible.\n"
648 "Some mail readers (eg. Eudora) can't cope with that,\n"
649 "so you might need to specify a more limited character set\n"
650 "(eg. iso-8859-1).",
651 ["EMAIL_CHARSET"]),
652 (FilePathOption, "debug", "",
653 "Setting this option makes Roundup to write all outgoing email\n"
654 "messages to this file *instead* of sending them.\n"
655 "This option has the same effect as environment variable"
656 " SENDMAILDEBUG.\nEnvironment variable takes precedence."),
657 (BooleanOption, "add_authorinfo", "yes",
658 "Add a line with author information at top of all messages\n"
659 "sent by roundup"),
660 (BooleanOption, "add_authoremail", "yes",
661 "Add the mail address of the author to the author information at\n"
662 "the top of all messages.\n"
663 "If this is false but add_authorinfo is true, only the name\n"
664 "of the actor is added which protects the mail address of the\n"
665 "actor from being exposed at mail archives, etc."),
666 ), "Outgoing email options.\nUsed for nozy messages and approval requests"),
667 ("mailgw", (
668 (BooleanOption, "keep_quoted_text", "yes",
669 "Keep email citations when accepting messages.\n"
670 "Setting this to \"no\" strips out \"quoted\" text"
671 " from the message.\n"
672 "Signatures are also stripped.",
673 ["EMAIL_KEEP_QUOTED_TEXT"]),
674 (BooleanOption, "leave_body_unchanged", "no",
675 "Preserve the email body as is - that is,\n"
676 "keep the citations _and_ signatures.",
677 ["EMAIL_LEAVE_BODY_UNCHANGED"]),
678 (Option, "default_class", "issue",
679 "Default class to use in the mailgw\n"
680 "if one isn't supplied in email subjects.\n"
681 "To disable, leave the value blank.",
682 ["MAIL_DEFAULT_CLASS"]),
683 (NullableOption, "language", "",
684 "Default locale name for the tracker mail gateway.\n"
685 "If this option is not set, mail gateway will use\n"
686 "the language of the tracker instance."),
687 (Option, "subject_prefix_parsing", "strict",
688 "Controls the parsing of the [prefix] on subject\n"
689 "lines in incoming emails. \"strict\" will return an\n"
690 "error to the sender if the [prefix] is not recognised.\n"
691 "\"loose\" will attempt to parse the [prefix] but just\n"
692 "pass it through as part of the issue title if not\n"
693 "recognised. \"none\" will always pass any [prefix]\n"
694 "through as part of the issue title."),
695 (Option, "subject_suffix_parsing", "strict",
696 "Controls the parsing of the [suffix] on subject\n"
697 "lines in incoming emails. \"strict\" will return an\n"
698 "error to the sender if the [suffix] is not recognised.\n"
699 "\"loose\" will attempt to parse the [suffix] but just\n"
700 "pass it through as part of the issue title if not\n"
701 "recognised. \"none\" will always pass any [suffix]\n"
702 "through as part of the issue title."),
703 (Option, "subject_suffix_delimiters", "[]",
704 "Defines the brackets used for delimiting the prefix and \n"
705 'suffix in a subject line. The presence of "suffix" in\n'
706 "the config option name is a historical artifact and may\n"
707 "be ignored."),
708 (Option, "subject_content_match", "always",
709 "Controls matching of the incoming email subject line\n"
710 "against issue titles in the case where there is no\n"
711 "designator [prefix]. \"never\" turns off matching.\n"
712 "\"creation + interval\" or \"activity + interval\"\n"
713 "will match an issue for the interval after the issue's\n"
714 "creation or last activity. The interval is a standard\n"
715 "Roundup interval."),
716 (RegExpOption, "refwd_re", "(\s*\W?\s*(fw|fwd|re|aw|sv|ang)\W)+",
717 "Regular expression matching a single reply or forward\n"
718 "prefix prepended by the mailer. This is explicitly\n"
719 "stripped from the subject during parsing."),
720 (RegExpOption, "origmsg_re",
721 "^[>|\s]*-----\s?Original Message\s?-----$",
722 "Regular expression matching start of an original message\n"
723 "if quoted the in body."),
724 (RegExpOption, "sign_re", "^[>|\s]*-- ?$",
725 "Regular expression matching the start of a signature\n"
726 "in the message body."),
727 (RegExpOption, "eol_re", r"[\r\n]+",
728 "Regular expression matching end of line."),
729 (RegExpOption, "blankline_re", r"[\r\n]+\s*[\r\n]+",
730 "Regular expression matching a blank line."),
731 (BooleanOption, "ignore_alternatives", "no",
732 "When parsing incoming mails, roundup uses the first\n"
733 "text/plain part it finds. If this part is inside a\n"
734 "multipart/alternative, and this option is set, all other\n"
735 "parts of the multipart/alternative are ignored. The default\n"
736 "is to keep all parts and attach them to the issue."),
737 ), "Roundup Mail Gateway options"),
738 ("pgp", (
739 (BooleanOption, "enable", "no",
740 "Enable PGP processing. Requires pyme."),
741 (NullableOption, "roles", "",
742 "If specified, a comma-separated list of roles to perform\n"
743 "PGP processing on. If not specified, it happens for all\n"
744 "users."),
745 (NullableOption, "homedir", "",
746 "Location of PGP directory. Defaults to $HOME/.gnupg if\n"
747 "not specified."),
748 ), "OpenPGP mail processing options"),
749 ("nosy", (
750 (RunDetectorOption, "messages_to_author", "no",
751 "Send nosy messages to the author of the message.",
752 ["MESSAGES_TO_AUTHOR"]),
753 (Option, "signature_position", "bottom",
754 "Where to place the email signature.\n"
755 "Allowed values: top, bottom, none",
756 ["EMAIL_SIGNATURE_POSITION"]),
757 (RunDetectorOption, "add_author", "new",
758 "Does the author of a message get placed on the nosy list\n"
759 "automatically? If 'new' is used, then the author will\n"
760 "only be added when a message creates a new issue.\n"
761 "If 'yes', then the author will be added on followups too.\n"
762 "If 'no', they're never added to the nosy.\n",
763 ["ADD_AUTHOR_TO_NOSY"]),
764 (RunDetectorOption, "add_recipients", "new",
765 "Do the recipients (To:, Cc:) of a message get placed on the\n"
766 "nosy list? If 'new' is used, then the recipients will\n"
767 "only be added when a message creates a new issue.\n"
768 "If 'yes', then the recipients will be added on followups too.\n"
769 "If 'no', they're never added to the nosy.\n",
770 ["ADD_RECIPIENTS_TO_NOSY"]),
771 (Option, "email_sending", "single",
772 "Controls the email sending from the nosy reactor. If\n"
773 "\"multiple\" then a separate email is sent to each\n"
774 "recipient. If \"single\" then a single email is sent with\n"
775 "each recipient as a CC address."),
776 (IntegerNumberOption, "max_attachment_size", sys.maxint,
777 "Attachments larger than the given number of bytes\n"
778 "won't be attached to nosy mails. They will be replaced by\n"
779 "a link to the tracker's download page for the file.")
780 ), "Nosy messages sending"),
781 )
783 ### Configuration classes
785 class Config:
787 """Base class for configuration objects.
789 Configuration options may be accessed as attributes or items
790 of instances of this class. All option names are uppercased.
792 """
794 # Config file name
795 INI_FILE = "config.ini"
797 # Object attributes that should not be taken as common configuration
798 # options in __setattr__ (most of them are initialized in constructor):
799 # builtin pseudo-option - package home directory
800 HOME = "."
801 # names of .ini file sections, in order
802 sections = None
803 # section comments
804 section_descriptions = None
805 # lists of option names for each section, in order
806 section_options = None
807 # mapping from option names and aliases to Option instances
808 options = None
809 # actual name of the config file. set on load.
810 filepath = os.path.join(HOME, INI_FILE)
812 def __init__(self, config_path=None, layout=None, settings={}):
813 """Initialize confing instance
815 Parameters:
816 config_path:
817 optional directory or file name of the config file.
818 If passed, load the config after processing layout (if any).
819 If config_path is a directory name, use default base name
820 of the config file.
821 layout:
822 optional configuration layout, a sequence of
823 section definitions suitable for .add_section()
824 settings:
825 optional setting overrides (dictionary).
826 The overrides are applied after loading config file.
828 """
829 # initialize option containers:
830 self.sections = []
831 self.section_descriptions = {}
832 self.section_options = {}
833 self.options = {}
834 # add options from the layout structure
835 if layout:
836 for section in layout:
837 self.add_section(*section)
838 if config_path is not None:
839 self.load(config_path)
840 for (name, value) in settings.items():
841 self[name.upper()] = value
843 def add_section(self, section, options, description=None):
844 """Define new config section
846 Parameters:
847 section - name of the config.ini section
848 options - a sequence of Option definitions.
849 Each Option definition is a sequence
850 containing class object and constructor
851 parameters, starting from the setting name:
852 setting, default, [description, [aliases]]
853 description - optional section comment
855 Note: aliases should only exist in historical options
856 for backwards compatibility - new options should
857 *not* have aliases!
859 """
860 if description or not self.section_descriptions.has_key(section):
861 self.section_descriptions[section] = description
862 for option_def in options:
863 klass = option_def[0]
864 args = option_def[1:]
865 option = klass(self, section, *args)
866 self.add_option(option)
868 def add_option(self, option):
869 """Adopt a new Option object"""
870 _section = option.section
871 _name = option.setting
872 if _section not in self.sections:
873 self.sections.append(_section)
874 _options = self._get_section_options(_section)
875 if _name not in _options:
876 _options.append(_name)
877 # (section, name) key is used for writing .ini file
878 self.options[(_section, _name)] = option
879 # make the option known under all of its A.K.A.s
880 for _name in option.aliases:
881 self.options[_name] = option
883 def update_option(self, name, klass,
884 default=NODEFAULT, description=None
885 ):
886 """Override behaviour of early created option.
888 Parameters:
889 name:
890 option name
891 klass:
892 one of the Option classes
893 default:
894 optional default value for the option
895 description:
896 optional new description for the option
898 Conversion from current option value to new class value
899 is done via string representation.
901 This method may be used to attach some brains
902 to options autocreated by UserConfig.
904 """
905 # fetch current option
906 option = self._get_option(name)
907 # compute constructor parameters
908 if default is NODEFAULT:
909 default = option.default
910 if description is None:
911 description = option.description
912 value = option.value2str(current=1)
913 # resurrect the option
914 option = klass(self, option.section, option.setting,
915 default=default, description=description)
916 # apply the value
917 option.set(value)
918 # incorporate new option
919 del self[name]
920 self.add_option(option)
922 def reset(self):
923 """Set all options to their default values"""
924 for _option in self.items():
925 _option.reset()
927 # Meant for commandline tools.
928 # Allows automatic creation of configuration files like this:
929 # roundup-server -p 8017 -u roundup --save-config
930 def getopt(self, args, short_options="", long_options=(),
931 config_load_options=("C", "config"), **options
932 ):
933 """Apply options specified in command line arguments.
935 Parameters:
936 args:
937 command line to parse (sys.argv[1:])
938 short_options:
939 optional string of letters for command line options
940 that are not config options
941 long_options:
942 optional list of names for long options
943 that are not config options
944 config_load_options:
945 two-element sequence (letter, long_option) defining
946 the options for config file. If unset, don't load
947 config file; otherwise config file is read prior
948 to applying other options. Short option letter
949 must not have a colon and long_option name must
950 not have an equal sign or '--' prefix.
951 options:
952 mapping from option names to command line option specs.
953 e.g. server_port="p:", server_user="u:"
954 Names are forced to lower case for commandline parsing
955 (long options) and to upper case to find config options.
956 Command line options accepting no value are assumed
957 to be binary and receive value 'yes'.
959 Return value: same as for python standard getopt(), except that
960 processed options are removed from returned option list.
962 """
963 # take a copy of long_options
964 long_options = list(long_options)
965 # build option lists
966 cfg_names = {}
967 booleans = []
968 for (name, letter) in options.items():
969 cfg_name = name.upper()
970 short_opt = "-" + letter[0]
971 name = name.lower().replace("_", "-")
972 cfg_names.update({short_opt: cfg_name, "--" + name: cfg_name})
974 short_options += letter
975 if letter[-1] == ":":
976 long_options.append(name + "=")
977 else:
978 booleans.append(short_opt)
979 long_options.append(name)
981 if config_load_options:
982 short_options += config_load_options[0] + ":"
983 long_options.append(config_load_options[1] + "=")
984 # compute names that will be searched in getopt return value
985 config_load_options = (
986 "-" + config_load_options[0],
987 "--" + config_load_options[1],
988 )
989 # parse command line arguments
990 optlist, args = getopt.getopt(args, short_options, long_options)
991 # load config file if requested
992 if config_load_options:
993 for option in optlist:
994 if option[0] in config_load_options:
995 self.load_ini(option[1])
996 optlist.remove(option)
997 break
998 # apply options
999 extra_options = []
1000 for (opt, arg) in optlist:
1001 if (opt in booleans): # and not arg
1002 arg = "yes"
1003 try:
1004 name = cfg_names[opt]
1005 except KeyError:
1006 extra_options.append((opt, arg))
1007 else:
1008 self[name] = arg
1009 return (extra_options, args)
1011 # option and section locators (used in option access methods)
1013 def _get_option(self, name):
1014 try:
1015 return self.options[name]
1016 except KeyError:
1017 raise InvalidOptionError(name)
1019 def _get_section_options(self, name):
1020 return self.section_options.setdefault(name, [])
1022 def _get_unset_options(self):
1023 """Return options that need manual adjustments
1025 Return value is a dictionary where keys are section
1026 names and values are lists of option names as they
1027 appear in the config file.
1029 """
1030 need_set = {}
1031 for option in self.items():
1032 if not option.isset():
1033 need_set.setdefault(option.section, []).append(option.setting)
1034 return need_set
1036 def _adjust_options(self, config):
1037 """Load ad-hoc option definitions from ConfigParser instance."""
1038 pass
1040 def _get_name(self):
1041 """Return the service name for config file heading"""
1042 return ""
1044 # file operations
1046 def load_ini(self, config_path, defaults=None):
1047 """Set options from config.ini file in given home_dir
1049 Parameters:
1050 config_path:
1051 directory or file name of the config file.
1052 If config_path is a directory name, use default
1053 base name of the config file
1054 defaults:
1055 optional dictionary of defaults for ConfigParser
1057 Note: if home_dir does not contain config.ini file,
1058 no error is raised. Config will be reset to defaults.
1060 """
1061 if os.path.isdir(config_path):
1062 home_dir = config_path
1063 config_path = os.path.join(config_path, self.INI_FILE)
1064 else:
1065 home_dir = os.path.dirname(config_path)
1066 # parse the file
1067 config_defaults = {"HOME": home_dir}
1068 if defaults:
1069 config_defaults.update(defaults)
1070 config = ConfigParser.ConfigParser(config_defaults)
1071 config.read([config_path])
1072 # .ini file loaded ok.
1073 self.HOME = home_dir
1074 self.filepath = config_path
1075 self._adjust_options(config)
1076 # set the options, starting from HOME
1077 self.reset()
1078 for option in self.items():
1079 option.load_ini(config)
1081 def load(self, home_dir):
1082 """Load configuration settings from home_dir"""
1083 self.load_ini(home_dir)
1085 def save(self, ini_file=None):
1086 """Write current configuration to .ini file
1088 'ini_file' argument, if passed, must be valid full path
1089 to the file to write. If omitted, default file in current
1090 HOME is created.
1092 If the file to write already exists, it is saved with '.bak'
1093 extension.
1095 """
1096 if ini_file is None:
1097 ini_file = self.filepath
1098 _tmp_file = os.path.splitext(ini_file)[0]
1099 _bak_file = _tmp_file + ".bak"
1100 _tmp_file = _tmp_file + ".tmp"
1101 _fp = file(_tmp_file, "wt")
1102 _fp.write("# %s configuration file\n" % self._get_name())
1103 _fp.write("# Autogenerated at %s\n" % time.asctime())
1104 need_set = self._get_unset_options()
1105 if need_set:
1106 _fp.write("\n# WARNING! Following options need adjustments:\n")
1107 for section, options in need_set.items():
1108 _fp.write("# [%s]: %s\n" % (section, ", ".join(options)))
1109 for section in self.sections:
1110 comment = self.section_descriptions.get(section, None)
1111 if comment:
1112 _fp.write("\n# ".join([""] + comment.split("\n")) +"\n")
1113 else:
1114 # no section comment - just leave a blank line between sections
1115 _fp.write("\n")
1116 _fp.write("[%s]\n" % section)
1117 for option in self._get_section_options(section):
1118 _fp.write("\n" + self.options[(section, option)].format())
1119 _fp.close()
1120 if os.access(ini_file, os.F_OK):
1121 if os.access(_bak_file, os.F_OK):
1122 os.remove(_bak_file)
1123 os.rename(ini_file, _bak_file)
1124 os.rename(_tmp_file, ini_file)
1126 # container emulation
1128 def __len__(self):
1129 return len(self.items())
1131 def __getitem__(self, name):
1132 if name == "HOME":
1133 return self.HOME
1134 else:
1135 return self._get_option(name).get()
1137 def __setitem__(self, name, value):
1138 if name == "HOME":
1139 self.HOME = value
1140 else:
1141 self._get_option(name).set(value)
1143 def __delitem__(self, name):
1144 _option = self._get_option(name)
1145 _section = _option.section
1146 _name = _option.setting
1147 self._get_section_options(_section).remove(_name)
1148 del self.options[(_section, _name)]
1149 for _alias in _option.aliases:
1150 del self.options[_alias]
1152 def items(self):
1153 """Return the list of Option objects, in .ini file order
1155 Note that HOME is not included in this list
1156 because it is builtin pseudo-option, not a real Option
1157 object loaded from or saved to .ini file.
1159 """
1160 return [self.options[(_section, _name)]
1161 for _section in self.sections
1162 for _name in self._get_section_options(_section)
1163 ]
1165 def keys(self):
1166 """Return the list of "canonical" names of the options
1168 Unlike .items(), this list also includes HOME
1170 """
1171 return ["HOME"] + [_option.name for _option in self.items()]
1173 # .values() is not implemented because i am not sure what should be
1174 # the values returned from this method: Option instances or config values?
1176 # attribute emulation
1178 def __setattr__(self, name, value):
1179 if self.__dict__.has_key(name) or hasattr(self.__class__, name):
1180 self.__dict__[name] = value
1181 else:
1182 self._get_option(name).set(value)
1184 # Note: __getattr__ is not symmetric to __setattr__:
1185 # self.__dict__ lookup is done before calling this method
1186 def __getattr__(self, name):
1187 return self[name]
1189 class UserConfig(Config):
1191 """Configuration for user extensions.
1193 Instances of this class have no predefined configuration layout.
1194 Options are created on the fly for each setting present in the
1195 config file.
1197 """
1199 def _adjust_options(self, config):
1200 # config defaults appear in all sections.
1201 # we'll need to filter them out.
1202 defaults = config.defaults().keys()
1203 # see what options are already defined and add missing ones
1204 preset = [(option.section, option.setting) for option in self.items()]
1205 for section in config.sections():
1206 for name in config.options(section):
1207 if ((section, name) not in preset) \
1208 and (name not in defaults):
1209 self.add_option(Option(self, section, name))
1211 class CoreConfig(Config):
1213 """Roundup instance configuration.
1215 Core config has a predefined layout (see the SETTINGS structure),
1216 supports loading of old-style pythonic configurations and holds
1217 three additional attributes:
1218 logging:
1219 instance logging engine, from standard python logging module
1220 or minimalistic logger implemented in Roundup
1221 detectors:
1222 user-defined configuration for detectors
1223 ext:
1224 user-defined configuration for extensions
1226 """
1228 # module name for old style configuration
1229 PYCONFIG = "config"
1230 # user configs
1231 ext = None
1232 detectors = None
1234 def __init__(self, home_dir=None, settings={}):
1235 Config.__init__(self, home_dir, layout=SETTINGS, settings=settings)
1236 # load the config if home_dir given
1237 if home_dir is None:
1238 self.init_logging()
1240 def _get_unset_options(self):
1241 need_set = Config._get_unset_options(self)
1242 # remove MAIL_PASSWORD if MAIL_USER is empty
1243 if "password" in need_set.get("mail", []):
1244 if not self["MAIL_USERNAME"]:
1245 settings = need_set["mail"]
1246 settings.remove("password")
1247 if not settings:
1248 del need_set["mail"]
1249 return need_set
1251 def _get_name(self):
1252 return self["TRACKER_NAME"]
1254 def reset(self):
1255 Config.reset(self)
1256 if self.ext:
1257 self.ext.reset()
1258 if self.detectors:
1259 self.detectors.reset()
1260 self.init_logging()
1262 def init_logging(self):
1263 _file = self["LOGGING_CONFIG"]
1264 if _file and os.path.isfile(_file):
1265 logging.config.fileConfig(_file)
1266 return
1268 _file = self["LOGGING_FILENAME"]
1269 # set file & level on the root logger
1270 logger = logging.getLogger()
1271 if _file:
1272 hdlr = logging.FileHandler(_file)
1273 else:
1274 hdlr = logging.StreamHandler(sys.stdout)
1275 formatter = logging.Formatter(
1276 '%(asctime)s %(levelname)s %(message)s')
1277 hdlr.setFormatter(formatter)
1278 # no logging API to remove all existing handlers!?!
1279 logger.handlers = [hdlr]
1280 logger.setLevel(logging._levelNames[self["LOGGING_LEVEL"] or "ERROR"])
1282 def load(self, home_dir):
1283 """Load configuration from path designated by home_dir argument"""
1284 if os.path.isfile(os.path.join(home_dir, self.INI_FILE)):
1285 self.load_ini(home_dir)
1286 else:
1287 self.load_pyconfig(home_dir)
1288 self.init_logging()
1289 self.ext = UserConfig(os.path.join(home_dir, "extensions"))
1290 self.detectors = UserConfig(os.path.join(home_dir, "detectors"))
1292 def load_ini(self, home_dir, defaults=None):
1293 """Set options from config.ini file in given home_dir directory"""
1294 config_defaults = {"TRACKER_HOME": home_dir}
1295 if defaults:
1296 config_defaults.update(defaults)
1297 Config.load_ini(self, home_dir, config_defaults)
1299 def load_pyconfig(self, home_dir):
1300 """Set options from config.py file in given home_dir directory"""
1301 # try to locate and import the module
1302 _mod_fp = None
1303 try:
1304 try:
1305 _module = imp.find_module(self.PYCONFIG, [home_dir])
1306 _mod_fp = _module[0]
1307 _config = imp.load_module(self.PYCONFIG, *_module)
1308 except ImportError:
1309 raise NoConfigError(home_dir)
1310 finally:
1311 if _mod_fp is not None:
1312 _mod_fp.close()
1313 # module loaded ok. set the options, starting from HOME
1314 self.reset()
1315 self.HOME = home_dir
1316 for _option in self.items():
1317 _option.load_pyconfig(_config)
1318 # backward compatibility:
1319 # SMTP login parameters were specified as a tuple in old style configs
1320 # convert them to new plain string options
1321 _mailuser = getattr(_config, "MAILUSER", ())
1322 if len(_mailuser) > 0:
1323 self.MAIL_USERNAME = _mailuser[0]
1324 if len(_mailuser) > 1:
1325 self.MAIL_PASSWORD = _mailuser[1]
1327 # in this config, HOME is also known as TRACKER_HOME
1328 def __getitem__(self, name):
1329 if name == "TRACKER_HOME":
1330 return self.HOME
1331 else:
1332 return Config.__getitem__(self, name)
1334 def __setitem__(self, name, value):
1335 if name == "TRACKER_HOME":
1336 self.HOME = value
1337 else:
1338 self._get_option(name).set(value)
1340 def __setattr__(self, name, value):
1341 if name == "TRACKER_HOME":
1342 self.__dict__["HOME"] = value
1343 else:
1344 Config.__setattr__(self, name, value)
1346 # vim: set et sts=4 sw=4 :