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 (IntegerNumberOption, 'csv_field_size', '131072',
534 "Maximum size of a csv-field during import. Roundups export\n"
535 "format is a csv (comma separated values) variant. The csv\n"
536 "reader has a limit on the size of individual fields\n"
537 "starting with python 2.5. Set this to a higher value if you\n"
538 "get the error 'Error: field larger than field limit' during\n"
539 "import."),
540 (IntegerNumberOption, 'password_pbkdf2_default_rounds', '10000',
541 "Sets the default number of rounds used when encoding passwords\n"
542 "using the PBKDF2 scheme. Set this to a higher value on faster\n"
543 "systems which want more security."),
544 )),
545 ("tracker", (
546 (Option, "name", "Roundup issue tracker",
547 "A descriptive name for your roundup instance."),
548 (Option, "web", NODEFAULT,
549 "The web address that the tracker is viewable at.\n"
550 "This will be included in information"
551 " sent to users of the tracker.\n"
552 "The URL MUST include the cgi-bin part or anything else\n"
553 "that is required to get to the home page of the tracker.\n"
554 "You MUST include a trailing '/' in the URL."),
555 (MailAddressOption, "email", "issue_tracker",
556 "Email address that mail to roundup should go to.\n"
557 "If no domain is specified then mail_domain is added."),
558 (NullableOption, "language", "",
559 "Default locale name for this tracker.\n"
560 "If this option is not set, the language is determined\n"
561 "by OS environment variable LANGUAGE, LC_ALL, LC_MESSAGES,\n"
562 "or LANG, in that order of preference."),
563 )),
564 ("web", (
565 (BooleanOption, "allow_html_file", "no",
566 "Setting this option enables Roundup to serve uploaded HTML\n"
567 "file content *as HTML*. This is a potential security risk\n"
568 "and is therefore disabled by default. Set to 'yes' if you\n"
569 "trust *all* users uploading content to your tracker."),
570 (BooleanOption, 'http_auth', "yes",
571 "Whether to use HTTP Basic Authentication, if present.\n"
572 "Roundup will use either the REMOTE_USER or HTTP_AUTHORIZATION\n"
573 "variables supplied by your web server (in that order).\n"
574 "Set this option to 'no' if you do not wish to use HTTP Basic\n"
575 "Authentication in your web interface."),
576 (BooleanOption, 'use_browser_language', "yes",
577 "Whether to use HTTP Accept-Language, if present.\n"
578 "Browsers send a language-region preference list.\n"
579 "It's usually set in the client's browser or in their\n"
580 "Operating System.\n"
581 "Set this option to 'no' if you want to ignore it."),
582 (BooleanOption, "debug", "no",
583 "Setting this option makes Roundup display error tracebacks\n"
584 "in the user's browser rather than emailing them to the\n"
585 "tracker admin."),
586 (BooleanOption, "migrate_passwords", "yes",
587 "Setting this option makes Roundup migrate passwords with\n"
588 "an insecure password-scheme to a more secure scheme\n"
589 "when the user logs in via the web-interface."),
590 )),
591 ("rdbms", (
592 (Option, 'name', 'roundup',
593 "Name of the database to use.",
594 ['MYSQL_DBNAME']),
595 (NullableOption, 'host', 'localhost',
596 "Database server host.",
597 ['MYSQL_DBHOST']),
598 (NullableOption, 'port', '',
599 "TCP port number of the database server.\n"
600 "Postgresql usually resides on port 5432 (if any),\n"
601 "for MySQL default port number is 3306.\n"
602 "Leave this option empty to use backend default"),
603 (NullableOption, 'user', 'roundup',
604 "Database user name that Roundup should use.",
605 ['MYSQL_DBUSER']),
606 (NullableOption, 'password', 'roundup',
607 "Database user password.",
608 ['MYSQL_DBPASSWORD']),
609 (NullableOption, 'read_default_file', '~/.my.cnf',
610 "Name of the MySQL defaults file.\n"
611 "Only used in MySQL connections."),
612 (NullableOption, 'read_default_group', 'roundup',
613 "Name of the group to use in the MySQL defaults file (.my.cnf).\n"
614 "Only used in MySQL connections."),
615 (IntegerNumberOption, 'sqlite_timeout', '30',
616 "Number of seconds to wait when the SQLite database is locked\n"
617 "Default: use a 30 second timeout (extraordinarily generous)\n"
618 "Only used in SQLite connections."),
619 (IntegerNumberOption, 'cache_size', '100',
620 "Size of the node cache (in elements)"),
621 (BooleanOption, "allow_create", "yes",
622 "Setting this option to 'no' protects the database against table creations."),
623 (BooleanOption, "allow_alter", "yes",
624 "Setting this option to 'no' protects the database against table alterations."),
625 (BooleanOption, "allow_drop", "yes",
626 "Setting this option to 'no' protects the database against table drops."),
627 (NullableOption, 'template', '',
628 "Name of the PostgreSQL template for database creation.\n"
629 "For database creation the template used has to match\n"
630 "the character encoding used (UTF8), there are different\n"
631 "PostgreSQL installations using different templates with\n"
632 "different encodings. If you get an error:\n"
633 " new encoding (UTF8) is incompatible with the encoding of\n"
634 " the template database (SQL_ASCII)\n"
635 " HINT: Use the same encoding as in the template database,\n"
636 " or use template0 as template.\n"
637 "then set this option to the template name given in the\n"
638 "error message."),
639 ), "Settings in this section are used"
640 " by RDBMS backends only"
641 ),
642 ("logging", (
643 (FilePathOption, "config", "",
644 "Path to configuration file for standard Python logging module.\n"
645 "If this option is set, logging configuration is loaded\n"
646 "from specified file; options 'filename' and 'level'\n"
647 "in this section are ignored."),
648 (FilePathOption, "filename", "",
649 "Log file name for minimal logging facility built into Roundup.\n"
650 "If no file name specified, log messages are written on stderr.\n"
651 "If above 'config' option is set, this option has no effect."),
652 (Option, "level", "ERROR",
653 "Minimal severity level of messages written to log file.\n"
654 "If above 'config' option is set, this option has no effect.\n"
655 "Allowed values: DEBUG, INFO, WARNING, ERROR"),
656 )),
657 ("mail", (
658 (Option, "domain", NODEFAULT,
659 "The email domain that admin_email, issue_tracker and\n"
660 "dispatcher_email belong to.\n"
661 "This domain is added to those config items if they don't\n"
662 "explicitly include a domain.\n"
663 "Do not include the '@' symbol."),
664 (Option, "host", NODEFAULT,
665 "SMTP mail host that roundup will use to send mail",
666 ["MAILHOST"],),
667 (Option, "username", "", "SMTP login name.\n"
668 "Set this if your mail host requires authenticated access.\n"
669 "If username is not empty, password (below) MUST be set!"),
670 (Option, "password", NODEFAULT, "SMTP login password.\n"
671 "Set this if your mail host requires authenticated access."),
672 (IntegerNumberOption, "port", smtplib.SMTP_PORT,
673 "Default port to send SMTP on.\n"
674 "Set this if your mail server runs on a different port."),
675 (NullableOption, "local_hostname", '',
676 "The local hostname to use during SMTP transmission.\n"
677 "Set this if your mail server requires something specific."),
678 (BooleanOption, "tls", "no",
679 "If your SMTP mail host provides or requires TLS\n"
680 "(Transport Layer Security) then set this option to 'yes'."),
681 (NullableFilePathOption, "tls_keyfile", "",
682 "If TLS is used, you may set this option to the name\n"
683 "of a PEM formatted file that contains your private key."),
684 (NullableFilePathOption, "tls_certfile", "",
685 "If TLS is used, you may set this option to the name\n"
686 "of a PEM formatted certificate chain file."),
687 (Option, "charset", "utf-8",
688 "Character set to encode email headers with.\n"
689 "We use utf-8 by default, as it's the most flexible.\n"
690 "Some mail readers (eg. Eudora) can't cope with that,\n"
691 "so you might need to specify a more limited character set\n"
692 "(eg. iso-8859-1).",
693 ["EMAIL_CHARSET"]),
694 (FilePathOption, "debug", "",
695 "Setting this option makes Roundup to write all outgoing email\n"
696 "messages to this file *instead* of sending them.\n"
697 "This option has the same effect as environment variable"
698 " SENDMAILDEBUG.\nEnvironment variable takes precedence."),
699 (BooleanOption, "add_authorinfo", "yes",
700 "Add a line with author information at top of all messages\n"
701 "sent by roundup"),
702 (BooleanOption, "add_authoremail", "yes",
703 "Add the mail address of the author to the author information at\n"
704 "the top of all messages.\n"
705 "If this is false but add_authorinfo is true, only the name\n"
706 "of the actor is added which protects the mail address of the\n"
707 "actor from being exposed at mail archives, etc."),
708 ), "Outgoing email options.\nUsed for nozy messages and approval requests"),
709 ("mailgw", (
710 (BooleanOption, "keep_quoted_text", "yes",
711 "Keep email citations when accepting messages.\n"
712 "Setting this to \"no\" strips out \"quoted\" text"
713 " from the message.\n"
714 "Signatures are also stripped.",
715 ["EMAIL_KEEP_QUOTED_TEXT"]),
716 (BooleanOption, "leave_body_unchanged", "no",
717 "Preserve the email body as is - that is,\n"
718 "keep the citations _and_ signatures.",
719 ["EMAIL_LEAVE_BODY_UNCHANGED"]),
720 (Option, "default_class", "issue",
721 "Default class to use in the mailgw\n"
722 "if one isn't supplied in email subjects.\n"
723 "To disable, leave the value blank.",
724 ["MAIL_DEFAULT_CLASS"]),
725 (NullableOption, "language", "",
726 "Default locale name for the tracker mail gateway.\n"
727 "If this option is not set, mail gateway will use\n"
728 "the language of the tracker instance."),
729 (Option, "subject_prefix_parsing", "strict",
730 "Controls the parsing of the [prefix] on subject\n"
731 "lines in incoming emails. \"strict\" will return an\n"
732 "error to the sender if the [prefix] is not recognised.\n"
733 "\"loose\" will attempt to parse the [prefix] but just\n"
734 "pass it through as part of the issue title if not\n"
735 "recognised. \"none\" will always pass any [prefix]\n"
736 "through as part of the issue title."),
737 (Option, "subject_suffix_parsing", "strict",
738 "Controls the parsing of the [suffix] on subject\n"
739 "lines in incoming emails. \"strict\" will return an\n"
740 "error to the sender if the [suffix] is not recognised.\n"
741 "\"loose\" will attempt to parse the [suffix] but just\n"
742 "pass it through as part of the issue title if not\n"
743 "recognised. \"none\" will always pass any [suffix]\n"
744 "through as part of the issue title."),
745 (Option, "subject_suffix_delimiters", "[]",
746 "Defines the brackets used for delimiting the prefix and \n"
747 'suffix in a subject line. The presence of "suffix" in\n'
748 "the config option name is a historical artifact and may\n"
749 "be ignored."),
750 (Option, "subject_content_match", "always",
751 "Controls matching of the incoming email subject line\n"
752 "against issue titles in the case where there is no\n"
753 "designator [prefix]. \"never\" turns off matching.\n"
754 "\"creation + interval\" or \"activity + interval\"\n"
755 "will match an issue for the interval after the issue's\n"
756 "creation or last activity. The interval is a standard\n"
757 "Roundup interval."),
758 (BooleanOption, "subject_updates_title", "yes",
759 "Update issue title if incoming subject of email is different.\n"
760 "Setting this to \"no\" will ignore the title part of"
761 " the subject\nof incoming email messages.\n"),
762 (RegExpOption, "refwd_re", "(\s*\W?\s*(fw|fwd|re|aw|sv|ang)\W)+",
763 "Regular expression matching a single reply or forward\n"
764 "prefix prepended by the mailer. This is explicitly\n"
765 "stripped from the subject during parsing."),
766 (RegExpOption, "origmsg_re",
767 "^[>|\s]*-----\s?Original Message\s?-----$",
768 "Regular expression matching start of an original message\n"
769 "if quoted the in body."),
770 (RegExpOption, "sign_re", "^[>|\s]*-- ?$",
771 "Regular expression matching the start of a signature\n"
772 "in the message body."),
773 (RegExpOption, "eol_re", r"[\r\n]+",
774 "Regular expression matching end of line."),
775 (RegExpOption, "blankline_re", r"[\r\n]+\s*[\r\n]+",
776 "Regular expression matching a blank line."),
777 (BooleanOption, "unpack_rfc822", "no",
778 "Unpack attached messages (encoded as message/rfc822 in MIME)\n"
779 "as multiple parts attached as files to the issue, if not\n"
780 "set we handle message/rfc822 attachments as a single file."),
781 (BooleanOption, "ignore_alternatives", "no",
782 "When parsing incoming mails, roundup uses the first\n"
783 "text/plain part it finds. If this part is inside a\n"
784 "multipart/alternative, and this option is set, all other\n"
785 "parts of the multipart/alternative are ignored. The default\n"
786 "is to keep all parts and attach them to the issue."),
787 ), "Roundup Mail Gateway options"),
788 ("pgp", (
789 (BooleanOption, "enable", "no",
790 "Enable PGP processing. Requires pyme."),
791 (NullableOption, "roles", "",
792 "If specified, a comma-separated list of roles to perform\n"
793 "PGP processing on. If not specified, it happens for all\n"
794 "users."),
795 (NullableOption, "homedir", "",
796 "Location of PGP directory. Defaults to $HOME/.gnupg if\n"
797 "not specified."),
798 ), "OpenPGP mail processing options"),
799 ("nosy", (
800 (RunDetectorOption, "messages_to_author", "no",
801 "Send nosy messages to the author of the message.",
802 ["MESSAGES_TO_AUTHOR"]),
803 (Option, "signature_position", "bottom",
804 "Where to place the email signature.\n"
805 "Allowed values: top, bottom, none",
806 ["EMAIL_SIGNATURE_POSITION"]),
807 (RunDetectorOption, "add_author", "new",
808 "Does the author of a message get placed on the nosy list\n"
809 "automatically? If 'new' is used, then the author will\n"
810 "only be added when a message creates a new issue.\n"
811 "If 'yes', then the author will be added on followups too.\n"
812 "If 'no', they're never added to the nosy.\n",
813 ["ADD_AUTHOR_TO_NOSY"]),
814 (RunDetectorOption, "add_recipients", "new",
815 "Do the recipients (To:, Cc:) of a message get placed on the\n"
816 "nosy list? If 'new' is used, then the recipients will\n"
817 "only be added when a message creates a new issue.\n"
818 "If 'yes', then the recipients will be added on followups too.\n"
819 "If 'no', they're never added to the nosy.\n",
820 ["ADD_RECIPIENTS_TO_NOSY"]),
821 (Option, "email_sending", "single",
822 "Controls the email sending from the nosy reactor. If\n"
823 "\"multiple\" then a separate email is sent to each\n"
824 "recipient. If \"single\" then a single email is sent with\n"
825 "each recipient as a CC address."),
826 (IntegerNumberOption, "max_attachment_size", sys.maxint,
827 "Attachments larger than the given number of bytes\n"
828 "won't be attached to nosy mails. They will be replaced by\n"
829 "a link to the tracker's download page for the file.")
830 ), "Nosy messages sending"),
831 )
833 ### Configuration classes
835 class Config:
837 """Base class for configuration objects.
839 Configuration options may be accessed as attributes or items
840 of instances of this class. All option names are uppercased.
842 """
844 # Config file name
845 INI_FILE = "config.ini"
847 # Object attributes that should not be taken as common configuration
848 # options in __setattr__ (most of them are initialized in constructor):
849 # builtin pseudo-option - package home directory
850 HOME = "."
851 # names of .ini file sections, in order
852 sections = None
853 # section comments
854 section_descriptions = None
855 # lists of option names for each section, in order
856 section_options = None
857 # mapping from option names and aliases to Option instances
858 options = None
859 # actual name of the config file. set on load.
860 filepath = os.path.join(HOME, INI_FILE)
862 def __init__(self, config_path=None, layout=None, settings={}):
863 """Initialize confing instance
865 Parameters:
866 config_path:
867 optional directory or file name of the config file.
868 If passed, load the config after processing layout (if any).
869 If config_path is a directory name, use default base name
870 of the config file.
871 layout:
872 optional configuration layout, a sequence of
873 section definitions suitable for .add_section()
874 settings:
875 optional setting overrides (dictionary).
876 The overrides are applied after loading config file.
878 """
879 # initialize option containers:
880 self.sections = []
881 self.section_descriptions = {}
882 self.section_options = {}
883 self.options = {}
884 # add options from the layout structure
885 if layout:
886 for section in layout:
887 self.add_section(*section)
888 if config_path is not None:
889 self.load(config_path)
890 for (name, value) in settings.items():
891 self[name.upper()] = value
893 def add_section(self, section, options, description=None):
894 """Define new config section
896 Parameters:
897 section - name of the config.ini section
898 options - a sequence of Option definitions.
899 Each Option definition is a sequence
900 containing class object and constructor
901 parameters, starting from the setting name:
902 setting, default, [description, [aliases]]
903 description - optional section comment
905 Note: aliases should only exist in historical options
906 for backwards compatibility - new options should
907 *not* have aliases!
909 """
910 if description or not self.section_descriptions.has_key(section):
911 self.section_descriptions[section] = description
912 for option_def in options:
913 klass = option_def[0]
914 args = option_def[1:]
915 option = klass(self, section, *args)
916 self.add_option(option)
918 def add_option(self, option):
919 """Adopt a new Option object"""
920 _section = option.section
921 _name = option.setting
922 if _section not in self.sections:
923 self.sections.append(_section)
924 _options = self._get_section_options(_section)
925 if _name not in _options:
926 _options.append(_name)
927 # (section, name) key is used for writing .ini file
928 self.options[(_section, _name)] = option
929 # make the option known under all of its A.K.A.s
930 for _name in option.aliases:
931 self.options[_name] = option
933 def update_option(self, name, klass,
934 default=NODEFAULT, description=None
935 ):
936 """Override behaviour of early created option.
938 Parameters:
939 name:
940 option name
941 klass:
942 one of the Option classes
943 default:
944 optional default value for the option
945 description:
946 optional new description for the option
948 Conversion from current option value to new class value
949 is done via string representation.
951 This method may be used to attach some brains
952 to options autocreated by UserConfig.
954 """
955 # fetch current option
956 option = self._get_option(name)
957 # compute constructor parameters
958 if default is NODEFAULT:
959 default = option.default
960 if description is None:
961 description = option.description
962 value = option.value2str(current=1)
963 # resurrect the option
964 option = klass(self, option.section, option.setting,
965 default=default, description=description)
966 # apply the value
967 option.set(value)
968 # incorporate new option
969 del self[name]
970 self.add_option(option)
972 def reset(self):
973 """Set all options to their default values"""
974 for _option in self.items():
975 _option.reset()
977 # Meant for commandline tools.
978 # Allows automatic creation of configuration files like this:
979 # roundup-server -p 8017 -u roundup --save-config
980 def getopt(self, args, short_options="", long_options=(),
981 config_load_options=("C", "config"), **options
982 ):
983 """Apply options specified in command line arguments.
985 Parameters:
986 args:
987 command line to parse (sys.argv[1:])
988 short_options:
989 optional string of letters for command line options
990 that are not config options
991 long_options:
992 optional list of names for long options
993 that are not config options
994 config_load_options:
995 two-element sequence (letter, long_option) defining
996 the options for config file. If unset, don't load
997 config file; otherwise config file is read prior
998 to applying other options. Short option letter
999 must not have a colon and long_option name must
1000 not have an equal sign or '--' prefix.
1001 options:
1002 mapping from option names to command line option specs.
1003 e.g. server_port="p:", server_user="u:"
1004 Names are forced to lower case for commandline parsing
1005 (long options) and to upper case to find config options.
1006 Command line options accepting no value are assumed
1007 to be binary and receive value 'yes'.
1009 Return value: same as for python standard getopt(), except that
1010 processed options are removed from returned option list.
1012 """
1013 # take a copy of long_options
1014 long_options = list(long_options)
1015 # build option lists
1016 cfg_names = {}
1017 booleans = []
1018 for (name, letter) in options.items():
1019 cfg_name = name.upper()
1020 short_opt = "-" + letter[0]
1021 name = name.lower().replace("_", "-")
1022 cfg_names.update({short_opt: cfg_name, "--" + name: cfg_name})
1024 short_options += letter
1025 if letter[-1] == ":":
1026 long_options.append(name + "=")
1027 else:
1028 booleans.append(short_opt)
1029 long_options.append(name)
1031 if config_load_options:
1032 short_options += config_load_options[0] + ":"
1033 long_options.append(config_load_options[1] + "=")
1034 # compute names that will be searched in getopt return value
1035 config_load_options = (
1036 "-" + config_load_options[0],
1037 "--" + config_load_options[1],
1038 )
1039 # parse command line arguments
1040 optlist, args = getopt.getopt(args, short_options, long_options)
1041 # load config file if requested
1042 if config_load_options:
1043 for option in optlist:
1044 if option[0] in config_load_options:
1045 self.load_ini(option[1])
1046 optlist.remove(option)
1047 break
1048 # apply options
1049 extra_options = []
1050 for (opt, arg) in optlist:
1051 if (opt in booleans): # and not arg
1052 arg = "yes"
1053 try:
1054 name = cfg_names[opt]
1055 except KeyError:
1056 extra_options.append((opt, arg))
1057 else:
1058 self[name] = arg
1059 return (extra_options, args)
1061 # option and section locators (used in option access methods)
1063 def _get_option(self, name):
1064 try:
1065 return self.options[name]
1066 except KeyError:
1067 raise InvalidOptionError(name)
1069 def _get_section_options(self, name):
1070 return self.section_options.setdefault(name, [])
1072 def _get_unset_options(self):
1073 """Return options that need manual adjustments
1075 Return value is a dictionary where keys are section
1076 names and values are lists of option names as they
1077 appear in the config file.
1079 """
1080 need_set = {}
1081 for option in self.items():
1082 if not option.isset():
1083 need_set.setdefault(option.section, []).append(option.setting)
1084 return need_set
1086 def _adjust_options(self, config):
1087 """Load ad-hoc option definitions from ConfigParser instance."""
1088 pass
1090 def _get_name(self):
1091 """Return the service name for config file heading"""
1092 return ""
1094 # file operations
1096 def load_ini(self, config_path, defaults=None):
1097 """Set options from config.ini file in given home_dir
1099 Parameters:
1100 config_path:
1101 directory or file name of the config file.
1102 If config_path is a directory name, use default
1103 base name of the config file
1104 defaults:
1105 optional dictionary of defaults for ConfigParser
1107 Note: if home_dir does not contain config.ini file,
1108 no error is raised. Config will be reset to defaults.
1110 """
1111 if os.path.isdir(config_path):
1112 home_dir = config_path
1113 config_path = os.path.join(config_path, self.INI_FILE)
1114 else:
1115 home_dir = os.path.dirname(config_path)
1116 # parse the file
1117 config_defaults = {"HOME": home_dir}
1118 if defaults:
1119 config_defaults.update(defaults)
1120 config = ConfigParser.ConfigParser(config_defaults)
1121 config.read([config_path])
1122 # .ini file loaded ok.
1123 self.HOME = home_dir
1124 self.filepath = config_path
1125 self._adjust_options(config)
1126 # set the options, starting from HOME
1127 self.reset()
1128 for option in self.items():
1129 option.load_ini(config)
1131 def load(self, home_dir):
1132 """Load configuration settings from home_dir"""
1133 self.load_ini(home_dir)
1135 def save(self, ini_file=None):
1136 """Write current configuration to .ini file
1138 'ini_file' argument, if passed, must be valid full path
1139 to the file to write. If omitted, default file in current
1140 HOME is created.
1142 If the file to write already exists, it is saved with '.bak'
1143 extension.
1145 """
1146 if ini_file is None:
1147 ini_file = self.filepath
1148 _tmp_file = os.path.splitext(ini_file)[0]
1149 _bak_file = _tmp_file + ".bak"
1150 _tmp_file = _tmp_file + ".tmp"
1151 _fp = file(_tmp_file, "wt")
1152 _fp.write("# %s configuration file\n" % self._get_name())
1153 _fp.write("# Autogenerated at %s\n" % time.asctime())
1154 need_set = self._get_unset_options()
1155 if need_set:
1156 _fp.write("\n# WARNING! Following options need adjustments:\n")
1157 for section, options in need_set.items():
1158 _fp.write("# [%s]: %s\n" % (section, ", ".join(options)))
1159 for section in self.sections:
1160 comment = self.section_descriptions.get(section, None)
1161 if comment:
1162 _fp.write("\n# ".join([""] + comment.split("\n")) +"\n")
1163 else:
1164 # no section comment - just leave a blank line between sections
1165 _fp.write("\n")
1166 _fp.write("[%s]\n" % section)
1167 for option in self._get_section_options(section):
1168 _fp.write("\n" + self.options[(section, option)].format())
1169 _fp.close()
1170 if os.access(ini_file, os.F_OK):
1171 if os.access(_bak_file, os.F_OK):
1172 os.remove(_bak_file)
1173 os.rename(ini_file, _bak_file)
1174 os.rename(_tmp_file, ini_file)
1176 # container emulation
1178 def __len__(self):
1179 return len(self.items())
1181 def __getitem__(self, name):
1182 if name == "HOME":
1183 return self.HOME
1184 else:
1185 return self._get_option(name).get()
1187 def __setitem__(self, name, value):
1188 if name == "HOME":
1189 self.HOME = value
1190 else:
1191 self._get_option(name).set(value)
1193 def __delitem__(self, name):
1194 _option = self._get_option(name)
1195 _section = _option.section
1196 _name = _option.setting
1197 self._get_section_options(_section).remove(_name)
1198 del self.options[(_section, _name)]
1199 for _alias in _option.aliases:
1200 del self.options[_alias]
1202 def items(self):
1203 """Return the list of Option objects, in .ini file order
1205 Note that HOME is not included in this list
1206 because it is builtin pseudo-option, not a real Option
1207 object loaded from or saved to .ini file.
1209 """
1210 return [self.options[(_section, _name)]
1211 for _section in self.sections
1212 for _name in self._get_section_options(_section)
1213 ]
1215 def keys(self):
1216 """Return the list of "canonical" names of the options
1218 Unlike .items(), this list also includes HOME
1220 """
1221 return ["HOME"] + [_option.name for _option in self.items()]
1223 # .values() is not implemented because i am not sure what should be
1224 # the values returned from this method: Option instances or config values?
1226 # attribute emulation
1228 def __setattr__(self, name, value):
1229 if self.__dict__.has_key(name) or hasattr(self.__class__, name):
1230 self.__dict__[name] = value
1231 else:
1232 self._get_option(name).set(value)
1234 # Note: __getattr__ is not symmetric to __setattr__:
1235 # self.__dict__ lookup is done before calling this method
1236 def __getattr__(self, name):
1237 return self[name]
1239 class UserConfig(Config):
1241 """Configuration for user extensions.
1243 Instances of this class have no predefined configuration layout.
1244 Options are created on the fly for each setting present in the
1245 config file.
1247 """
1249 def _adjust_options(self, config):
1250 # config defaults appear in all sections.
1251 # we'll need to filter them out.
1252 defaults = config.defaults().keys()
1253 # see what options are already defined and add missing ones
1254 preset = [(option.section, option.setting) for option in self.items()]
1255 for section in config.sections():
1256 for name in config.options(section):
1257 if ((section, name) not in preset) \
1258 and (name not in defaults):
1259 self.add_option(Option(self, section, name))
1261 class CoreConfig(Config):
1263 """Roundup instance configuration.
1265 Core config has a predefined layout (see the SETTINGS structure),
1266 supports loading of old-style pythonic configurations and holds
1267 three additional attributes:
1268 logging:
1269 instance logging engine, from standard python logging module
1270 or minimalistic logger implemented in Roundup
1271 detectors:
1272 user-defined configuration for detectors
1273 ext:
1274 user-defined configuration for extensions
1276 """
1278 # module name for old style configuration
1279 PYCONFIG = "config"
1280 # user configs
1281 ext = None
1282 detectors = None
1284 def __init__(self, home_dir=None, settings={}):
1285 Config.__init__(self, home_dir, layout=SETTINGS, settings=settings)
1286 # load the config if home_dir given
1287 if home_dir is None:
1288 self.init_logging()
1290 def copy(self):
1291 new = CoreConfig()
1292 new.sections = list(self.sections)
1293 new.section_descriptions = dict(self.section_descriptions)
1294 new.section_options = dict(self.section_options)
1295 new.options = dict(self.options)
1296 return new
1298 def _get_unset_options(self):
1299 need_set = Config._get_unset_options(self)
1300 # remove MAIL_PASSWORD if MAIL_USER is empty
1301 if "password" in need_set.get("mail", []):
1302 if not self["MAIL_USERNAME"]:
1303 settings = need_set["mail"]
1304 settings.remove("password")
1305 if not settings:
1306 del need_set["mail"]
1307 return need_set
1309 def _get_name(self):
1310 return self["TRACKER_NAME"]
1312 def reset(self):
1313 Config.reset(self)
1314 if self.ext:
1315 self.ext.reset()
1316 if self.detectors:
1317 self.detectors.reset()
1318 self.init_logging()
1320 def init_logging(self):
1321 _file = self["LOGGING_CONFIG"]
1322 if _file and os.path.isfile(_file):
1323 logging.config.fileConfig(_file)
1324 return
1326 _file = self["LOGGING_FILENAME"]
1327 # set file & level on the roundup logger
1328 logger = logging.getLogger('roundup')
1329 if _file:
1330 hdlr = logging.FileHandler(_file)
1331 else:
1332 hdlr = logging.StreamHandler(sys.stdout)
1333 formatter = logging.Formatter(
1334 '%(asctime)s %(levelname)s %(message)s')
1335 hdlr.setFormatter(formatter)
1336 # no logging API to remove all existing handlers!?!
1337 for h in logger.handlers:
1338 h.close()
1339 logger.removeHandler(hdlr)
1340 logger.handlers = [hdlr]
1341 logger.setLevel(logging._levelNames[self["LOGGING_LEVEL"] or "ERROR"])
1343 def load(self, home_dir):
1344 """Load configuration from path designated by home_dir argument"""
1345 if os.path.isfile(os.path.join(home_dir, self.INI_FILE)):
1346 self.load_ini(home_dir)
1347 else:
1348 self.load_pyconfig(home_dir)
1349 self.init_logging()
1350 self.ext = UserConfig(os.path.join(home_dir, "extensions"))
1351 self.detectors = UserConfig(os.path.join(home_dir, "detectors"))
1353 def load_ini(self, home_dir, defaults=None):
1354 """Set options from config.ini file in given home_dir directory"""
1355 config_defaults = {"TRACKER_HOME": home_dir}
1356 if defaults:
1357 config_defaults.update(defaults)
1358 Config.load_ini(self, home_dir, config_defaults)
1360 def load_pyconfig(self, home_dir):
1361 """Set options from config.py file in given home_dir directory"""
1362 # try to locate and import the module
1363 _mod_fp = None
1364 try:
1365 try:
1366 _module = imp.find_module(self.PYCONFIG, [home_dir])
1367 _mod_fp = _module[0]
1368 _config = imp.load_module(self.PYCONFIG, *_module)
1369 except ImportError:
1370 raise NoConfigError(home_dir)
1371 finally:
1372 if _mod_fp is not None:
1373 _mod_fp.close()
1374 # module loaded ok. set the options, starting from HOME
1375 self.reset()
1376 self.HOME = home_dir
1377 for _option in self.items():
1378 _option.load_pyconfig(_config)
1379 # backward compatibility:
1380 # SMTP login parameters were specified as a tuple in old style configs
1381 # convert them to new plain string options
1382 _mailuser = getattr(_config, "MAILUSER", ())
1383 if len(_mailuser) > 0:
1384 self.MAIL_USERNAME = _mailuser[0]
1385 if len(_mailuser) > 1:
1386 self.MAIL_PASSWORD = _mailuser[1]
1388 # in this config, HOME is also known as TRACKER_HOME
1389 def __getitem__(self, name):
1390 if name == "TRACKER_HOME":
1391 return self.HOME
1392 else:
1393 return Config.__getitem__(self, name)
1395 def __setitem__(self, name, value):
1396 if name == "TRACKER_HOME":
1397 self.HOME = value
1398 else:
1399 self._get_option(name).set(value)
1401 def __setattr__(self, name, value):
1402 if name == "TRACKER_HOME":
1403 self.__dict__["HOME"] = value
1404 else:
1405 Config.__setattr__(self, name, value)
1407 # vim: set et sts=4 sw=4 :