[wp-trac] [WordPress Trac] #45970: in IIS if web.confing <configuration has xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0" attribute the WordPress creates new <configuration> section and the site craches with wrong web.config

[WordPress Trac]

#45970: in IIS if web.confing <configuration has
xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0" attribute the
WordPress creates new <configuration> section and the site craches with
wrong web.config
----------------------------+-----------------------------
 Reporter:  boychev         |      Owner:  (none)
     Type:  defect (bug)    |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Rewrite Rules   |    Version:  5.0.3
 Severity:  normal          |   Keywords:  needs-patch
  Focuses:  administration  |
----------------------------+-----------------------------
 in IIS if web.confing <configuration has
 xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0" attribute the
 WordPress creates new <configuration> section and the site craches with
 wrong web.config error (2 <configuration> sections). It happens/triggers
 by example if you are trying to change the "Permalink Settings".

 The code responsible for this check is located in \wp-
 admin\includes\misc.php (line 748)

         // First check if the rule already exists as in that case there is
 no need to re-add it
         $wordpress_rules =
 $xpath->query('/configuration/system.webServer/rewrite/rules/rule[starts-
 with(@name,\'wordpress\')] |
 /configuration/system.webServer/rewrite/rules/rule[starts-
 with(@name,\'WordPress\')]');
         if ( $wordpress_rules->length > 0 )
                 return true;

 The fix could be to register the namespace:

 $xpath->registerNamespace("x",
 "http://schemas.microsoft.com/.NetConfiguration/v2.0");

 and then in $xpath->query to check also for
 /x:configuration/x:system.webServer/x:rewrite/x:rules/x:rule[starts-
 with(@name,\'WordPress\')]

 In this way it works without problem and does not break the site.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/45970>
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