doc/forum/missing_pages_redirected_to_search-SOLVED/comment_2_bc0291b1afc2e9b4a853c168d3adfd78._comment

   1 [[!comment format=mdwn
   2  username="https://launchpad.net/~eliasson"
   3  nickname="eliasson"
   4  subject="comment 2"
   5  date="2016-01-31T20:07:52Z"
   6  content="""
   7 Using Apache 2.4.10 (Debian 8's package) I solved it the following way:
   8
   9 1. In the Apache site configuration, set `ErrorDocument 404` to the ikiwiki.cgi URL path.
  10 2. Apply the following patch to the plugins search and 404. The easiest and probably cleanest way is to copy the plugins to your `$libdir/IkiWiki/Plugins` and edit them there. It works with xapian omega search but wouldn't work with google, since the *P* CGI parameter is not set (instead, omega uses the `QUERY_STRING` environment variable). Perhaps one day I'll make this a proper patch and submit as a pull request.
  11
  12 [Apache 2.4.13 adds support](https://httpd.apache.org/docs/2.4/mod/core.html#errordocument) for dynamic strings in `ErrorDocument`s, so you could do something similar to the solution for Nginx above. Until that is packaged in your stable Linux distro of choice, this hack can be used.
  13
  14 <pre>
  15 <code>
  16 diff --git a/IkiWiki/Plugin/404.pm b/IkiWiki/Plugin/404.pm
  17 index 42cfa9e..a12fd40 100644
  18 --- a/IkiWiki/Plugin/404.pm
  19 +++ b/IkiWiki/Plugin/404.pm
  20 @@ -74,7 +74,9 @@ sub cgi ($) {
  21                 my $page = cgi_page_from_404(
  22                         Encode::decode_utf8($ENV{REDIRECT_URL}),
  23                         $config{url}, $config{usedirs});
  24 -               IkiWiki::Plugin::goto::cgi_goto($cgi, $page);
  25 +
  26 +               $ENV{QUERY_STRING}=\"P=$page\";
  27 +               IkiWiki::Plugin::search::search($cgi);
  28         }
  29  }
  30
  31 diff --git a/IkiWiki/Plugin/search.pm b/IkiWiki/Plugin/search.pm
  32 index 24b16fe..24d7b3c 100644
  33 --- a/IkiWiki/Plugin/search.pm
  34 +++ b/IkiWiki/Plugin/search.pm
  35 @@ -183,24 +183,31 @@ sub delete (@) {
  36         }
  37  }
  38
  39 +sub search($) {
  40 +       my $cgi=shift;
  41 +
  42 +       if ($config{google_search}) {
  43 +               print $cgi->redirect(\"https://www.google.com/search?sitesearch=$config{url}&q=\".$cgi->param('P'));
  44 +               exit 0;
  45 +       }
  46 +       else {
  47 +               # only works for GET requests
  48 +               chdir(\"$config{wikistatedir}/xapian\") || error(\"chdir: $!\");
  49 +               $ENV{OMEGA_CONFIG_FILE}=\"./omega.conf\";
  50 +               $ENV{CGIURL}=IkiWiki::cgiurl();
  51 +               IkiWiki::loadindex();
  52 +               $ENV{HELPLINK}=htmllink(\"\", \"\", \"ikiwiki/searching\",
  53 +                                       noimageinline => 1, linktext => \"Help\");
  54 +
  55 +               exec($config{omega_cgi}) || error(\"$config{omega_cgi} failed: $!\");
  56 +       }
  57 +}
  58 +
  59  sub cgi ($) {
  60         my $cgi=shift;
  61
  62         if (defined $cgi->param('P')) {
  63 -               if ($config{google_search}) {
  64 -                       print $cgi->redirect(\"https://www.google.com/search?sitesearch=$config{url}&q=\".$cgi->param('P'));
  65 -                       exit 0;
  66 -               }
  67 -               else {
  68 -                       # only works for GET requests
  69 -                       chdir(\"$config{wikistatedir}/xapian\") || error(\"chdir: $!\");
  70 -                       $ENV{OMEGA_CONFIG_FILE}=\"./omega.conf\";
  71 -                       $ENV{CGIURL}=IkiWiki::cgiurl();
  72 -                       IkiWiki::loadindex();
  73 -                       $ENV{HELPLINK}=htmllink(\"\", \"\", \"ikiwiki/searching\",
  74 -                               noimageinline => 1, linktext => \"Help\");
  75 -                       exec($config{omega_cgi}) || error(\"$config{omega_cgi} failed: $!\");
  76 -               }
  77 +               search($cgi);
  78         }
  79  }
  80
  81 </code>
  82 </pre>
  83 """]]