TypeError: 'int' object has no attribute '__getitem__'

[denns.liou@…]

How to Reproduce

While doing a GET operation on /, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{}

User agent: Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Dragon/50.14.22.465 Chrome/50.0.2661.102 Safari/537.36

System Information

System information not available

Enabled Plugins

Plugin information not available

Python Traceback

Traceback (most recent call last):
  File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 512, in _dispatch_request
    dispatcher.dispatch(req)
  File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 221, in dispatch
    resp = chosen_handler.process_request(req)
  File "build/bdist.linux-x86_64/egg/trac/wiki/web_ui.py", line 134, in process_request
    req.perm(versioned_page.resource).require('WIKI_VIEW')
  File "build/bdist.linux-x86_64/egg/trac/perm.py", line 577, in require
    if not self._has_permission(action, resource):
  File "build/bdist.linux-x86_64/egg/trac/perm.py", line 568, in _has_permission
    check_permission(action, perm.username, resource, perm)
  File "build/bdist.linux-x86_64/egg/trac/perm.py", line 460, in check_permission
    perm)
  File "build/bdist.linux-x86_64/egg/trac/perm.py", line 294, in check_permission
    get_user_permissions(username)
  File "build/bdist.linux-x86_64/egg/trac/perm.py", line 396, in get_user_permissions
    for perm in self.store.get_user_permissions(username) or []:
  File "build/bdist.linux-x86_64/egg/ldapplugin/api.py", line 206, in get_user_permissions
    users += list(provider.get_permission_groups(username))
  File "build/bdist.linux-x86_64/egg/ldapplugin/api.py", line 109, in get_permission_groups
    ldapgroups = self._get_user_groups(username)
  File "build/bdist.linux-x86_64/egg/ldapplugin/api.py", line 150, in _get_user_groups
    ldap_groups = self._ldap.get_groups()
  File "build/bdist.linux-x86_64/egg/ldapplugin/api.py", line 554, in get_groups
    groups = self.get_dn(self.basedn, 'objectclass=' + self.groupname)
  File "build/bdist.linux-x86_64/egg/ldapplugin/api.py", line 577, in get_dn
    sr = self._search(basedn, filterstr, ['dn'], ldap.SCOPE_SUBTREE)
  File "build/bdist.linux-x86_64/egg/ldapplugin/api.py", line 660, in _search
    self._open()
  File "build/bdist.linux-x86_64/egg/ldapplugin/api.py", line 653, in _open
    raise TracError("Unable to open LDAP cnx: %s" % e[0]['desc'])
TypeError: 'int' object has no attribute '__getitem__'

[Jun Omae]

PluginIssue (​th:LdapPlugin). Please report to the plugin maintainers via ​trac-hacks.org.

Anyway, it seems the error is raised while formatting error message about LDAP. Try the following patch. Also, I guess incorrect configurations lead the original error.

ldapplugin/0.12/ldapplugin/api.py

@@ -27 +27 @@
 from trac.core import *
 from trac.perm import IPermissionGroupProvider, IPermissionStore
 from trac.config import _TRUE_VALUES
+from trac.util.text import exception_to_unicode
 
 LDAP_MODULE_CONFIG = [ 'enable', 'permfilter',
                        'global_perms', 'manage_groups'
@@ -648 +649 @@
         except ldap.LDAPError, e:
             self._ds = None
             if self.bind_user:
-                self.log.warn("Unable to open LDAP with user %s" % \
-                              self.bind_user)
-            raise TracError("Unable to open LDAP cnx: %s" % e[0]['desc'])
+                self.log.warning("Unable to open LDAP with user %s",
+                                 self.bind_user)
+            raise TracError("Unable to open LDAP cnx: %s" %
+                            exception_to_unicode(e))
 
     def _search(self, basedn, filterstr='(objectclass=*)', attributes=None,
                 scope=ldap.SCOPE_ONELEVEL):

[questioner]

Thanks fo answer, But how can I find "ldapplugin/0.12/ldapplugin/api.py" and edit?

[questioner]

Fixed, thanks for help.

[Ryan J Ollos]

Applied the patch in ​[th 15677].