Item9357: Login with illegal web results in Assert failure, or Uninitialized variable.

To recreate:

• Enter an edit URL from a non-authenticated user, with an illegal/incorrect webname
  • http://mysite.com/bin/edit/asdf/MyTopic

(If Web is properly capitalized - Asdf then the redirect to login works, and reports the expected The "Asdf" web does not exist after authentication.

Assert error instead of redirect to login screen:

Assertion (this is not a topic object) failed!
 at /var/www/foswiki/trunk/core/lib/Assert.pm line 78
   Assert::ASSERT('', 'this is not a topic object') called at /var/www/foswiki/trunk/core/lib/Foswiki/Meta.pm line 2163
   Foswiki::Meta::latestIsLoaded('Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki/Macros/QUERY.pm line 25
   Foswiki::QUERY('Foswiki=HASH(0x84910e0)', 'Foswiki::Attrs=HASH(0x897d478)', 'Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2988
   Foswiki::_expandMacroOnTopicRendering('Foswiki=HASH(0x84910e0)', 'QUERY', '"{NameFilter}"', 'Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2878
   Foswiki::_processMacros('Foswiki=HASH(0x84910e0)', '%QUERY{"{NameFilter}"}%', 'CODE(0x8456e78)', 'Foswiki::Meta=HASH(0x864e500)', 14) called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2896
   Foswiki::_processMacros('Foswiki=HASH(0x84910e0)', '<meta name="foswiki.PUBURL" content="%ENCODE{"%PUBURL%"}%" />...', 'CODE(0x8456e78)', 'Foswiki::Meta=HASH(0x864e500)', 15) called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2896
   Foswiki::_processMacros('Foswiki=HASH(0x84910e0)', '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN...', 'CODE(0x8456e78)', 'Foswiki::Meta=HASH(0x864e500)', 16) called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2675
   Foswiki::innerExpandMacros('Foswiki=HASH(0x84910e0)', 'SCALAR(0x84576f8)', 'Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 3165
   Foswiki::expandMacros('Foswiki=HASH(0x84910e0)', '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN...', 'Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki/Meta.pm line 2891
   Foswiki::Meta::expandMacros('Foswiki::Meta=HASH(0x864e500)', '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN...') called at /var/www/foswiki/trunk/core/lib/Foswiki/LoginManager/TemplateLogin.pm line 283
   Foswiki::LoginManager::TemplateLogin::login('Foswiki::LoginManager::TemplateLogin=HASH(0x86118e0)', 'Foswiki::Request=HASH(0x848e028)', 'Foswiki=HASH(0x84910e0)') called at /var/www/foswiki/trunk/core/lib/Foswiki/UI.pm line 454
   Foswiki::UI::logon('Foswiki=HASH(0x84910e0)') called at /var/www/foswiki/trunk/core/lib/Foswiki/UI.pm line 310
   Foswiki::UI::__ANON__() called at /usr/lib/perl5/vendor_perl/5.10.1/Error.pm line 415
   eval {...} called at /usr/lib/perl5/vendor_perl/5.10.1/Error.pm line 407
   Error::subs::try('CODE(0x805eb28)', 'HASH(0x8490e10)') called at /var/www/foswiki/trunk/core/lib/Foswiki/UI.pm line 429
   Foswiki::UI::_execute('Foswiki::Request=HASH(0x848e028)', 'CODE(0x8485f58)', 'logon', 1, 'login', 1) called at /var/www/foswiki/trunk/core/lib/Foswiki/UI.pm line 277
   Foswiki::UI::handleRequest('Foswiki::Request=HASH(0x848e028)') called at /var/www/foswiki/trunk/core/lib/Foswiki/Engine/CGI.pm line 30
   Foswiki::Engine::CGI::run('Foswiki::Engine::CGI=HASH(0x81eee68)') called at login line 24
 at /var/www/foswiki/trunk/core/lib/Assert.pm line 78
   Assert::ASSERT('', 'this is not a topic object') called at /var/www/foswiki/trunk/core/lib/Foswiki/Meta.pm line 2163
   Foswiki::Meta::latestIsLoaded('Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki/Macros/QUERY.pm line 25
   Foswiki::QUERY('Foswiki=HASH(0x84910e0)', 'Foswiki::Attrs=HASH(0x897d478)', 'Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2988
   Foswiki::_expandMacroOnTopicRendering('Foswiki=HASH(0x84910e0)', 'QUERY', '"{NameFilter}"', 'Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2878
   Foswiki::_processMacros('Foswiki=HASH(0x84910e0)', '%QUERY{"{NameFilter}"}%', 'CODE(0x8456e78)', 'Foswiki::Meta=HASH(0x864e500)', 14) called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2896
   Foswiki::_processMacros('Foswiki=HASH(0x84910e0)', '<meta name="foswiki.PUBURL" content="%ENCODE{"%PUBURL%"}%" />...', 'CODE(0x8456e78)', 'Foswiki::Meta=HASH(0x864e500)', 15) called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2896
   Foswiki::_processMacros('Foswiki=HASH(0x84910e0)', '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN...', 'CODE(0x8456e78)', 'Foswiki::Meta=HASH(0x864e500)', 16) called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 2675
   Foswiki::innerExpandMacros('Foswiki=HASH(0x84910e0)', 'SCALAR(0x84576f8)', 'Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki.pm line 3165
   Foswiki::expandMacros('Foswiki=HASH(0x84910e0)', '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN...', 'Foswiki::Meta=HASH(0x864e500)') called at /var/www/foswiki/trunk/core/lib/Foswiki/Meta.pm line 2891
   Foswiki::Meta::expandMacros('Foswiki::Meta=HASH(0x864e500)', '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN...') called at /var/www/foswiki/trunk/core/lib/Foswiki/LoginManager/TemplateLogin.pm line 283
   Foswiki::LoginManager::TemplateLogin::login('Foswiki::LoginManager::TemplateLogin=HASH(0x86118e0)', 'Foswiki::Request=HASH(0x848e028)', 'Foswiki=HASH(0x84910e0)') called at /var/www/foswiki/trunk/core/lib/Foswiki/UI.pm line 454
   Foswiki::UI::logon('Foswiki=HASH(0x84910e0)') called at /var/www/foswiki/trunk/core/lib/Foswiki/UI.pm line 310
   Foswiki::UI::__ANON__() called at /usr/lib/perl5/vendor_perl/5.10.1/Error.pm line 415
   eval {...} called at /usr/lib/perl5/vendor_perl/5.10.1/Error.pm line 407
   Error::subs::try('CODE(0x805eb28)', 'HASH(0x8490e10)') called at /var/www/foswiki/trunk/core/lib/Foswiki/UI.pm line 429
   Foswiki::UI::_execute('Foswiki::Request=HASH(0x848e028)', 'CODE(0x8485f58)', 'logon', 1, 'login', 1) called at /var/www/foswiki/trunk/core/lib/Foswiki/UI.pm line 277
   Foswiki::UI::handleRequest('Foswiki::Request=HASH(0x848e028)') called at /var/www/foswiki/trunk/core/lib/Foswiki/Engine/CGI.pm line 30
   Foswiki::Engine::CGI::run('Foswiki::Engine::CGI=HASH(0x81eee68)') called at login line 24.

-- GeorgeClark - 19 Jul 2010

What happens if asserts are off? Because this assert actually looks like reasonable behaviour to me, in "debug" mode.

-- CrawfordCurrie - 20 Jul 2010

with Asserts off, Foswiki opens the editor on the Main/WebHome topic.

Rather than going to edit with the wrong topic, using an incorrectly formatted webname should probably return the same error as using a correctly formatted, but missing webname.

Web/topic validations:

• bin/view/asdf/ -> Main/WebHome
• bin/view/asdf/Blab -> Oops "(Missing or Illegal) web does not exist"
• bin/login/asdf/ -> Main/WebHome
• bin/login/asdf/Blab -> Assertion error
• bin/login/asdf/Blab -> (Asserts disabled) Topic Blab does not exist (in Main web)
• bin/edit/asdf/ -> Edit of Main/WebHome
• bin/edit/asdf/Blab -> Oops "(Missing or Illegal) web does not exist"
• bin/edit/ -> Edit of Main/WebHome
• bin/attach/ -> Attaches a file to Main/WebHome
• bin/attach/system/ -> Attaches to Main/WebHome

-- GeorgeClark - 20 Jul 2010

One other observation. Templates should show the explicit WEB.TOPIC in their headings, so the user can catch things like the incorrect attach.

-- GeorgeClark - 20 Jul 2010

Setting this back to New. This is also related to Item9284 and some other items regarding defaulting web/topic when lower case.

-- GeorgeClark - 28 Aug 2010

Note that on 1.1.3 without asserts, it results in the following error logged:

Use of uninitialized value in -e at /usr/home/foswiki.org/public_html/lib/Foswiki/Store/VC/Handler.pm line 437.

-- GeorgeClark - 21 Sep 2011

Should be OK now

-- CrawfordCurrie - 18 Dec 2012

Some more breakage due to distro:e6bc846fe078 when saving attachments. Only trunk affected.

-- MichaelDaum - 20 Dec 2012

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