mò Àw™Dc@s±dZddddgZdkZdkZdkZdkTdkTdkTdkTde fd„ƒYZ de e fd„ƒYZ de fd „ƒYZ de e fd „ƒYZdS( s?Classes implementing message filters. Currently implemented: tFilterSkeletontFilter_externaltFilter_classifiert Filter_TMDAN(t*cBs tZdZd„Zd„ZRS(sLBase class for implementing message-filtering classes. Sub-classes should provide the following data attributes and methods: _confitems - a tuple of dictionaries representing the parameters the class takes. Each dictionary should contain the following key, value pairs: - name - parameter name - type - a type function to compare the parameter value against (i.e. str, int, bool) - default - optional default value. If not preseent, the parameter is required. __str__(self) - return a simple string representing the class instance. showconf(self) - log a message representing the instance and configuration from self._confstring(). initialize(self) - process instantiation parameters from self.conf. Raise getmailConfigurationError on errors. Do any other validation necessary, and set self.__initialized when done. _filter_message(self, msg) - accept the message and deliver it, returning a tuple (exitcode, newmsg, err). exitcode should be 0 for success, 99 or 100 for success but drop the message, anything else for error. err should be an empty string on success, or an error message otherwise. newmsg is an email.Message() object representing the message in filtered form, or None on error or when dropping the message. See the Filter_external class for a good (though not simple) example. cKsZti||y|iƒWn%tj o}td|ƒ‚nX|ii dƒdS(Ns+missing required configuration parameter %ssdone ( tConfigurableBaset__init__tselftargst initializetKeyErrortotgetmailConfigurationErrortlogttrace(RRR ((t7/usr/lib/python2.4/site-packages/getmailcore/filters.pyR=s cCs|iiƒ|i|_|i|_|i|_|i|ƒ\}}}||i jo"|ii d||fƒdSn5||ijp|otd|||fƒ‚nt|iƒƒt|iƒƒjo9|iid|t|iƒƒt|iƒƒfƒn|i|ƒ|S(Ns(filter %s returned %d; dropping message sfilter %s returned %d (%s) sBWarning: filter %s returned fewer headers (%d) than supplied (%d) (RR Rt retrievert received_fromtmsgt received_witht received_byt_filter_messagetexitcodetnewmsgterrtexitcodes_droptdebugtNonetexitcodes_keeptgetmailFilterErrortlentheaderstwarningt copyattrs(RRRRRR((Rtfilter_messageFs    %9 (t__name__t __module__t__doc__RR"(((RRs # cBstZdZeddƒedddedeƒedddeddƒedddedd ƒedd dedd ƒedd dedeƒedd dedeƒedddedeƒe dddeƒf Z d„Z d„Z d„Z d„Zd„ZRS(s| Arbitrary external filter destination. Parameters: path - path to the external filter binary. unixfrom - (boolean) whether to include a Unix From_ line at the beginning of the message. Defaults to False. arguments - a valid Python tuple of strings to be passed as arguments to the command. The following replacements are available if supported by the retriever: %(sender) - envelope return path %(recipient) - recipient address %(domain) - domain-part of recipient address %(local) - local-part of recipient address Warning: the text of these replacements is taken from the message and is therefore under the control of a potential attacker. DO NOT PASS THESE VALUES TO A SHELL -- they may contain unsafe shell metacharacters or other hostile constructions. example: path = /path/to/myfilter arguments = ('--demime', '-f%(sender)', '--', '%(recipient)') exitcodes_keep - if provided, a tuple of integers representing filter exit codes that mean to pass the message to the next filter or destination. Default is (0, ). exitcodes_drop - if provided, a tuple of integers representing filter exit codes that mean to drop the message. Default is (99, 100). user (string, optional) - if provided, the external command will be run as the specified user. This requires that the main getmail process have permission to change the effective user ID. group (string, optional) - if provided, the external command will be run with the specified group ID. This requires that the main getmail process have permission to change the effective group ID. allow_root_commands (boolean, optional) - if set, external commands are allowed when running as root. The default is not to allow such behaviour. tnametpathtunixfromtrequiredtdefaultt argumentss()Rs(0, )Rs (99, 100)tusertgrouptallow_root_commandst configparsercCsÎ|iiƒtii|idƒ|id