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 # This Source Code Form is subject to the terms of the Mozilla Public

 # License, v. 2.0. If a copy of the MPL was not distributed with this

 # file, You can obtain one at http://mozilla.org/MPL/2.0/.

 Rough notes on setting up this test app. jrgm@netscape.com 2001/08/05

 1) this is intended to be run as a mod_perl application under an Apache web

    server. [It is possible to run it as a cgi-bin, but then you will be paying

    the cost of forking perl and re-compiling all the required modules on each

    page load].

 2) it should be possible to run this under Apache on win32, but I expect that

    there are *nix-oriented assumptions that have crept in. (You would also need

    a replacement for Time::HiRes, probably by using Win32::API to directly

    call into the system to Windows 'GetLocalTime()'.)

 3) You need to have a few "non-standard" Perl Modules installed. This script

    will tell you which ones are not installed (let me know if I have left some

    out of this test).

 --8<--------------------------------------------------------------------

 #!/usr/bin/perl 

 my @modules = qw{

     LWP::UserAgent   SQL::Statement     Text::CSV_XS      DBD::CSV          

     DBI              Time::HiRes        CGI::Request      URI               

     MIME::Base64     HTML::Parser       HTML::Tagset      Digest::MD5      

     };

 for (@modules) {

     printf "%20s", $_;

     eval "use $_;";

     if ($@) {

         print ", I don't have that.\n";

     } else {

         print ", version: ", eval "\$" . "$_" . "::VERSION", "\n";

     }

 }

 --8<--------------------------------------------------------------------

    For modules that are missing, you can find them at http://www.cpan.org/.

    Download the .tar.gz files you need, and then (for the most part) just 

    do 'perl Makefile.PL; make; make test; make install'.

    [Update: 28-Mar-2003] I recently installed Redhat 7.2, as server, which

    installed Apache 1.3.20 with mod_perl 1.24 and perl 5.6.0. I then ran the

    CPAN shell (`perl -MCPAN -e shell') and after completing configuration, I

    did 'install Bundle::CPAN', 'install Bundle::LWP' and 'install DBI' to

    upgrade tose modules and their dependencies. These instructions work on OSX

    as well, make sure you run the CPAN shell with sudo so you have sufficient

    privs to install the files.

    CGI::Request seems to have disappeared from CPAN, but you can get a copy

    from <http://stein.cshl.org/WWW/software/CGI::modules/> and then install

    with the standard `perl Makefile.PL; make; make test; make install'.

    To install the SQL::Statement, Text::CSV_XS, and DBD::CSV modules, there is

    a bundle available on CPAN, so you can use the CPAN shell and just enter

    'install Bundle::DBD::CSV'.

    At the end of this, the output for the test program above was the

    following.  (Note: you don't necessarily have to have the exact version

    numbers for these modules, as far as I know, but something close would be

    safest).

       LWP::UserAgent, version: 2.003

       SQL::Statement, version: 1.005

         Text::CSV_XS, version: 0.23

             DBD::CSV, version: 0.2002

                  DBI, version: 1.35

          Time::HiRes, version: 1.43

         CGI::Request, version: 2.75

                  URI, version: 1.23

         MIME::Base64, version: 2.18

         HTML::Parser, version: 3.27

         HTML::Tagset, version: 3.03

          Digest::MD5, version: 2.24

 4) There is code to draw a sorted graph of the final results, but I have

    disabled the place in 'report.pl' where its use would be triggered (look

    for the comment). This is so that you can run this without having gone

    through the additional setup of the 'gd' library, and the modules GD and

    GD::Graph. If you have those in place, you can turn this on by just

    reenabling the print statement in report.pl

    [Note - 28-Mar-2003: with Redhat 7.2, libgd.so.1.8.4 is preinstalled to

    /usr/lib. The current GD.pm modules require libgd 2.0.5 or higher, but you

    use 1.8.4 if you install GD.pm version 1.40, which is available at

    <http://stein.cshl.org/WWW/software/GD/old/GD-1.40.tar.gz>. Just do 'perl

    Makefile.PL; make; make install' as usual. I chose to build with JPEG

    support, but without FreeType, XPM and GIF support. I had a test error when

    running 'make test', but it works fine for my purposes. I then installed

    'GD::Text' and 'GD::Graph' from the CPAN shell.]

 5) To set this up with Apache, create a directory in the cgi-bin for the web

    server called e.g. 'page-loader'.

 5a) For Apache 1.x/mod_perl 1.x, place this in the Apache httpd.conf file,

     and skip to step 5c.

 --8<--------------------------------------------------------------------

 Alias /page-loader/  /var/www/cgi-bin/page-loader/

 <Location /page-loader>

 SetHandler  perl-script

 PerlHandler Apache::Registry

 PerlSendHeader On

 Options +ExecCGI

 </Location>

 --8<--------------------------------------------------------------------

     [MacOSX note: The CGI folder lives in /Library/WebServer/CGI-Executables/

     so the Alias line above should instead read:

       Alias /page-loader/  /Library/WebServer/CGI-Executables/page-loader

     Case is important (even though the file system is case-insensitive) and

     if you type it incorrectly you will get "Forbidden" HTTP errors.

     In addition, perl (and mod_perl) aren't enabled by default. You need to 

     uncomment two lines in httpd.conf:

       LoadModule perl_module        libexec/httpd/libperl.so

       AddModule mod_perl.c

     (basically just search for "perl" and uncomment the lines you find).]

 5b) If you're using Apache 2.x and mod_perl 1.99/2.x (tested with Red Hat 9),

     place this in your perl.conf or httpd.conf:

 --8<--------------------------------------------------------------------

 Alias /page-loader/  /var/www/cgi-bin/page-loader/

 <Location /page-loader>

 SetHandler perl-script

 PerlResponseHandler ModPerl::RegistryPrefork

 PerlOptions +ParseHeaders

 Options +ExecCGI

 </Location>

 --8<--------------------------------------------------------------------

    If your mod_perl version is less than 1.99_09, then copy RegistryPrefork.pm

    to your vendor_perl ModPerl directory (for example, on Red Hat 9, this is

    /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/ModPerl).

    If you are using mod_perl 1.99_09 or above, grab RegistryPrefork.pm from

    http://perl.apache.org/docs/2.0/user/porting/compat.html#C_Apache__Registry___C_Apache__PerlRun__and_Friends

    and copy it to the vendor_perl directory as described above.

 5c) When you're finished, restart Apache.  Now you can run this as

     'http://yourserver.domain.com/page-loader/loader.pl'

 6) You need to create a subdirectory call 'db' under the 'page-loader'

    directory. This subdirectory 'db' must be writeable by UID that Apache

    executes as (e.g., 'nobody' or 'apache'). [You may want to figure out some

    other way to do this if this web server is not behind a firewall].

 7) You need to assemble a set of content pages, with all images, included JS

    and CSS pulled to the same directory. These pages can live anywhere on the

    same HTTP server that is running this app. The app assumes that each page

    is in its own sub-directory, with included content below that

    directory. You can set the location and the list of pages in the file

    'urllist.txt'. [See 'urllist.txt' for further details on what needs to be

    set there.]

    There are various tools that will pull in complete copies of web pages

    (e.g. 'wget' or something handrolled from LWP::UserAgent). You should edit

    the pages to remove any redirects, popup windows, and possibly any platform

    specific JS rules (e.g., Mac specific CSS included with

    'document.write("LINK...'). You should also check that for missing content,

    or URLs that did not get changed to point to the local content. [One way to

    check for this is tweak this simple proxy server to check your links:

    http://www.stonehenge.com/merlyn/WebTechniques/col34.listing.txt)

    [MacOSX note: The web files live in /Library/WebServer/Documents, so you will

    need to modify urllist.txt to have the appropriate FILEBASE and HTTPBASE.]

 8) The "hook" into the content is a single line in each top-level document like this:

       <!-- MOZ_INSERT_CONTENT_HOOK -->

    which should be placed immediately after the opening <HEAD> element. The script uses

    this as the way to substitute a BASE HREF and some JS into the page which will control

    the exectution of the test.

 9) You will most likely need to remove all load event handlers from your

    test documents (onload attribute on body and handlers added with

    addEventListener).

 10) Because the system uses (X)HTML base, and some XML constructs are not

     subject to that (for example xml-stylesheet processing instructions),

     you may need to provide the absolute path to external resources.

 11) If your documents are tranformed on the client side with XSLT, you will

     need to add this snippet of XSLT to your stylesheet (and possibly make

     sure it does not conflict with your other rules):

 --8<--------------------------------------------------------------------

 <!-- Page Loader -->

 <xsl:template match="html:script">

   <xsl:copy>

   <xsl:apply-templates/>

   </xsl:copy>

   <xsl:for-each select="@*">

     <xsl:copy/>

   </xsl:for-each>

 </xsl:template>

 --8<--------------------------------------------------------------------

     And near the top of your output rules add:

        <xsl:apply-templates select="html:script"/>

     Finally make sure you define the XHTML namespace in the stylesheet

     with "html" prefix.

 12) I've probably left some stuff out. Bug jrgm@netscape.com for the missing stuff.