
    p:i(                         d dl Z d dlZd dlmZ d dlmZ d dlmZmZm	Z	 d dl
mZmZ d dlmZmZ d dlmZ d dlmZ  G d	 d
e          ZdS )    N)fnmatchcase)groupby)ConfigurationError
PathOptionUnicodeConfigParser)	Component
implements)IPermissionPolicyPermissionSystem)to_list)exception_to_unicodec                   b    e Zd ZdZ ee            edddd          Zd Zd Z	d Z
d	 Zd
 ZdS )AuthzPolicya  Permission policy using an authz-like configuration file.

    Refer to SVN documentation for syntax of the authz file. Groups are
    supported.

    As the fine-grained permissions brought by this permission policy are
    often used in complement of the other permission policies (like the
    `DefaultPermissionPolicy`), there's no need to redefine all the
    permissions here. Only additional rights or restrictions should be added.

    === Installation ===
    Enabling this policy requires listing it in `trac.ini`::

      {{{
      [trac]
      permission_policies = AuthzPolicy, DefaultPermissionPolicy

      [authz_policy]
      authz_file = conf/authzpolicy.conf
      }}}

    This means that the `AuthzPolicy` permissions will be checked first, and
    only if no rule is found will the `DefaultPermissionPolicy` be used.


    === Configuration ===
    The `authzpolicy.conf` file is a `.ini` style configuration file.

     - Each section of the config is a glob pattern used to match against a
       Trac resource descriptor. These descriptors are in the form::

         {{{
         <realm>:<id>@<version>[/<realm>:<id>@<version> ...]
         }}}

       Resources are ordered left to right, from parent to child. If any
       component is inapplicable, `*` is substituted. If the version pattern is
       not specified explicitly, all versions (`@*`) is added implicitly

       Example: Match the WikiStart page::

         {{{
         [wiki:*]
         [wiki:WikiStart*]
         [wiki:WikiStart@*]
         [wiki:WikiStart]
         }}}

       Example: Match the attachment
       ``wiki:WikiStart@117/attachment/FOO.JPG@*`` on WikiStart::

         {{{
         [wiki:*]
         [wiki:WikiStart*]
         [wiki:WikiStart@*]
         [wiki:WikiStart@*/attachment/*]
         [wiki:WikiStart@117/attachment/FOO.JPG]
         }}}

     - Sections are checked against the current Trac resource '''IN ORDER''' of
       appearance in the configuration file. '''ORDER IS CRITICAL'''.

     - Once a section matches, the current username is matched, '''IN ORDER''',
       against the keys of the section. If a key is prefixed with a `@`, it is
       treated as a group. If a key is prefixed with a `!`, the permission is
       denied rather than granted. The username will match any of 'anonymous',
       'authenticated', <username> or '*', using normal Trac permission rules.

    Example configuration::

      {{{
      [groups]
      administrators = athomas

      [*/attachment:*]
      * = WIKI_VIEW, TICKET_VIEW

      [wiki:WikiStart@*]
      @administrators = WIKI_ADMIN
      anonymous = WIKI_VIEW
      * = WIKI_VIEW

      # Deny access to page templates
      [wiki:PageTemplates/*]
      * =

      # Match everything else
      [*]
      @administrators = TRAC_ADMIN
      anonymous = BROWSER_VIEW, CHANGESET_VIEW, FILE_VIEW, LOG_VIEW,
          MILESTONE_VIEW, POLL_VIEW, REPORT_SQL_VIEW, REPORT_VIEW,
          ROADMAP_VIEW, SEARCH_VIEW, TICKET_CREATE, TICKET_MODIFY,
          TICKET_VIEW, TIMELINE_VIEW,
          WIKI_CREATE, WIKI_MODIFY, WIKI_VIEW
      # Give authenticated users some extra permissions
      authenticated = REPO_SEARCH, XML_RPC
      }}}

    authz_policy
authz_file zqLocation of authz policy configuration file. Non-absolute paths are relative to the Environment `conf` directory.c                 0    d | _         d | _        i | _        d S )N)authzauthz_mtimegroups_by_user)selfs    Q/var/www/html/trac/venv/lib/python3.11/site-packages/tracopt/perm/authz_policy.py__init__zAuthzPolicy.__init__   s    
     c                    | j         r-t          j                            | j                  | j         k    r|                                  |                     |          }| j                            d||           | 	                    ||          }|d S |g k    rdS t          | j                  }t          |d           D ]E\  }}	|r$||                    d |	D                       v r dS ||                    |	          v r dS Fd S )NzChecking %s on %sFc                 ,    |                      d          S )N!)
startswith)ps    r   <lambda>z.AuthzPolicy.check_permission.<locals>.<lambda>   s    c1B1B r   )keyc              3   *   K   | ]}|d d         V  dS )   N ).0r   s     r   	<genexpr>z/AuthzPolicy.check_permission.<locals>.<genexpr>   s*      3I3IaAabbE3I3I3I3I3I3Ir   T)r   ospathgetmtimer   parse_authznormalise_resourcelogdebugauthz_permissionsr   envr   expand_actions)
r   actionusernameresourcepermresource_keypermissionspsdenypermss
             r   check_permissionzAuthzPolicy.check_permission   s;    	  11T5EEE..x88*FLAAA,,\8DD4B5 dh''";'B'BD D D 	 	KD% ""3"33I3I53I3I3I"I"IIIuu2,,U3333tt 4 tr   c           	      |     j                             d j                    j        s( j                             d           t	                      	 t
          j                             j                  }nH# t          $ r;} j                             dt          |                     t	                      d }~ww xY wt          d           _        	  j                             j                   nM# t          j        $ r;} j                             dt          |                     t	                      d }~ww xY wi  j                            d          r2 j                            d          D ]\  }}t#          |          |<   i  _         fd                                D ]\  }} d|z   |           t'          t)           j                                                            }t
          j                             j                  } j                                        D ]{}|dk    r	 j                            |          D ]W\  }}	t#          |	          D ]B}
|
                    d	          r
|
d
d          }
|
|vr j                             d|
||           CX|| _        d S )Nz Parsing authz security policy %szYThe `[authz_policy] authz_file` configuration option in trac.ini is empty or not defined.z.Error parsing authz permission policy file: %sF)ignorecase_optiongroupsc                     |D ]l}|                     d          r | |dd                              2j                            |t                                                    |            md S )N@r#   )r   r   
setdefaultsetadd)groupitemsitem	add_itemsr=   r   s      r   rF   z*AuthzPolicy.parse_authz.<locals>.add_items   s     K K??3'' KIeVDH%56666'224??CCEJJJJ	K Kr   r?   r   r#   z>The action %s in the [%s] section of %s is not a valid action.)r,   r-   r   errorr   r'   r(   r)   OSErrorr   r   r   readconfigparserParsingErrorhas_sectionrD   r   r   rA   r   r/   get_actionsbasenamesectionsr   warningr   )r   r   erC   usersall_actionsauthz_basenamesectionuseractionsr1   rF   r=   s   `          @@r   r*   zAuthzPolicy.parse_authz   s)   9	( 	( 	(  	'HNN I J J J$&&&	''**4?;;KK 	' 	' 	'HNNK/224 4 4$&&&	'
 )5AAA
	'JOODO,,,,( 	' 	' 	'HNNK/224 4 4$&&&	' :!!(++ 	/ $
 0 0 : : / /u 'u 	K 	K 	K 	K 	K 	K 	K #LLNN 	* 	*LE5IcEk5))))*4844@@BBCC))$/::z**,, 
	J 
	JG(""!%!1!1'!:!: J Jg%g.. J JF((-- ,!'[00(( *H)/.J J J	JJ 's0   $A9 9
B>6B99B>C7 7E6D<<Ec                 T    d fdd                      |                    S )Nc                 H    | j         }| j        pdd||ndd| j        pdS )N*:r?   )idrealmversion)r3   r\   s     r   to_descriptorz5AuthzPolicy.normalise_resource.<locals>.to_descriptor   sB    B!)!63!6!6')~3!>!>!)!1!8S!8: :r   c                     | sdgS  |           }| j         s
| j        |gS | j        }|r)| j         |j         k    r|j        }|r| j         |j         k    |r |          |gz   S |gS )Nz*:*@*)r]   r\   parent)r3   
descriptorra   flattenr_   s      r   rc   z/AuthzPolicy.normalise_resource.<locals>.flatten   s     !y &x00J> $hk&9"|# _F 'X^v|;;  'X^v|;; $wv*55"|#r   /)join)r   r3   rc   r_   s     @@r   r+   zAuthzPolicy.normalise_resource   sO    	: 	: 	:	$ 	$ 	$ 	$ 	$ 	$" xx))***r   c                    |r|dk    rddd|g}nddg}d | j                                         D             D ]}|}d|vr|dz  }t          ||          r| j                             |          D ]t\  }}t	          |          }||v s|| j                            |g           v r?| j                            d|||           t          |t                    r|gc c S |c c S ud S )N	anonymousrZ   authenticatedc                     g | ]
}|d k    |S )r=   r$   )r%   as     r   
<listcomp>z1AuthzPolicy.authz_permissions.<locals>.<listcomp>   s(     !5 !5 !5q&'8mm "#&3mmr   r?   z@*z!%s matched section %s for user %s)r   rO   r   rD   r   r   getr,   r-   
isinstancestr)r   r5   r2   valid_usersresource_sectionresource_globwhor6   s           r   r.   zAuthzPolicy.authz_permissions   sX     	-K//hGKK,K!5 !5DJ,?,?,A,A !5 !5 !5 	/ 	/,M-''%<77 
/(,
(8(89I(J(J 	/ 	/$C")+"6"6Kk))4#6#:#:8R#H#HHH'J'3]HN N N%k377 /$/=00000#...... I tr   N)__name__
__module____qualname____doc__r	   r
   r   r   r   r:   r*   r+   r.   r$   r   r   r   r      s        b bF J !!!NL"<= =J
! ! !  24' 4' 4'l+ + +4    r   r   )rJ   r'   fnmatchr   	itertoolsr   trac.configr   r   r   	trac.corer   r	   	trac.permr
   r   	trac.utilr   trac.util.textr   r   r$   r   r   <module>r~      s   "     				             K K K K K K K K K K + + + + + + + + 9 9 9 9 9 9 9 9       / / / / / /s s s s s) s s s s sr   