From bd75f9d02cfd7bf1671dc2e81c9be4cdd74532be Mon Sep 17 00:00:00 2001
From: MichaelDaum <MichaelDaum@0b4bb1d4-4e5a-0410-9cc4-b2b747904278>
Date: Mon, 7 Jun 2010 07:47:07 +0000
Subject: [PATCH] Item9112:    * added content-disposition header working
 around acroread's inability to properly parse url params    * documented
 interplay of GenPDFPrincePlugin and ZonePlugin on a foswiki-1.0.9 engine

git-svn-id: http://svn.foswiki.org/trunk/GenPDFPrincePlugin@7671 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
---
 data/System/GenPDFPrincePlugin.txt            | 14 ++++++-
 lib/Foswiki/Plugins/GenPDFPrincePlugin.pm     | 41 +++++++++++++++++--
 .../Plugins/GenPDFPrincePlugin/build.pl       |  2 +-
 3 files changed, 51 insertions(+), 6 deletions(-)

diff --git a/data/System/GenPDFPrincePlugin.txt b/data/System/GenPDFPrincePlugin.txt
index 2753d6c..027f050 100644
--- a/data/System/GenPDFPrincePlugin.txt
+++ b/data/System/GenPDFPrincePlugin.txt
@@ -1,4 +1,4 @@
-%META:TOPICINFO{author="ProjectContributor" date="1241721334" format="1.1" version="1.2"}%
+%META:TOPICINFO{author="ProjectContributor" comment="save topic" date="1266576108" format="1.1" reprev="1.3" version="1.3"}%
 ---+!! %TOPIC%
 
 This plugin generates PDF using [[http://www.princexml.com/][Prince XML]].
@@ -15,6 +15,15 @@ Here's the complete Foswiki documentation in [[%SCRIPTURL{"view"}%/%SYSTEMWEB%/C
 ---++ Installation
 You will have to download Prince XML from http://www.princexml.com/download.
 
+If you are using other plugins that implement a =completePageHandler= (see InstalledPlugins) then you most
+probably need to tune the =$Foswiki::cfg{PluginsOrder}= to list the %TOPIC% behind those. For example,
+if you are using Foswiki:Extensions/ZonePlugin then you will have to list both giving them a specific order
+how they execute the =completePageHandler=:
+
+<verbatim>
+$Foswiki::cfg{PluginsOrder} = '...., ZonePlugin, GenPDFPrincePlugin';
+</verbatim>
+
 %$INSTALL_INSTRUCTIONS%
 
 ---++ Plugin Info
@@ -22,11 +31,12 @@ You will have to download Prince XML from http://www.princexml.com/download.
    * Set SHORTDESCRIPTION = 'Generate PDF using Prince XML';
 -->
 |  Author: | Foswiki:Main.MichaelDaum |
-|  Copyright: | &copy; 2009, Michael Daum http://michaeldaumconsulting.com |
+|  Copyright: | &copy; 2009-2010, Michael Daum http://michaeldaumconsulting.com |
 |  License: | GPL ([[http://www.gnu.org/copyleft/gpl.html][GNU General Public License]]) |
 |  Release: | %$RELEASE% |
 |  Version: | %$VERSION% |
 |  Change History: | <!-- versions below in reverse order -->&nbsp; |
+|  07 Jun 2010 | added content-disposition to ease saving the pdf to disk |
 |  20 Aug 2009 | improved error handling |
 |  07 May 2009 | initial release |
 |  Home: | Foswiki:Extensions/%TOPIC% |
diff --git a/lib/Foswiki/Plugins/GenPDFPrincePlugin.pm b/lib/Foswiki/Plugins/GenPDFPrincePlugin.pm
index 86ea4e0..48dd68e 100644
--- a/lib/Foswiki/Plugins/GenPDFPrincePlugin.pm
+++ b/lib/Foswiki/Plugins/GenPDFPrincePlugin.pm
@@ -25,13 +25,22 @@ use Foswiki::Plugins ();
 use Error qw(:try);
 
 our $VERSION = '$Rev: 4419 (2009-07-03) $';
-our $RELEASE = '1.1';
+our $RELEASE = '1.2';
 our $SHORTDESCRIPTION = 'Generate PDF using Prince XML';
 our $NO_PREFS_IN_TOPIC = 1;
+our $baseTopic;
+our $baseWeb;
+
+use constant DEBUG => 0; # toggle me
+
+###############################################################################
+sub writeDebug {
+  print STDERR "GenPDFPrincePlugin - $_[0]\n" if DEBUG;
+}
 
 ###############################################################################
 sub initPlugin {
-  my ($topic, $web, $user, $installWeb) = @_;
+  ($baseTopic, $baseWeb) = @_;
 
   if ($Foswiki::Plugins::VERSION < 2.0) {
     Foswiki::Func::writeWarning('Version mismatch between ',
@@ -69,6 +78,7 @@ sub completePageHandler {
 
   # creater html file
   print $htmlFile "$_[0]";
+  #writeDebug("htmlFile=".$_[0]);
 
   # create prince command
   my $session = $Foswiki::Plugins::SESSION;
@@ -76,6 +86,9 @@ sub completePageHandler {
   my $princeCmd = $Foswiki::cfg{GenPDFPrincePlugin}{PrinceCmd} || 
     '/usr/bin/prince --baseurl %BASEURL|U% -i html -o %OUTFILE|F% %INFILE|F% --log=%ERROR|F%';
 
+  writeDebug("princeCmd=$princeCmd");
+  writeDebug("BASEURL=$pubUrl");
+
   # execute
   my ($output, $exit) = Foswiki::Sandbox->sysCommand(
       $princeCmd, 
@@ -87,8 +100,15 @@ sub completePageHandler {
 
   local $/ = undef;
 
+  my $error = '';
+  if ($exit || DEBUG) {
+    $error = <$errorFile>;
+  }
+
+  writeDebug("GenPDFPrincePlugin - error=$error");
+  writeDebug("GenPDFPrincePlugin - output=$output");
+
   if ($exit) {
-    my $error = <$errorFile>;
     my $html = $_[0];
     my $line = 1;
     $html = '00000: '.$html;
@@ -96,7 +116,22 @@ sub completePageHandler {
     throw Error::Simple("execution of prince failed ($exit): \n\n$error\n\n$html");
   }
 
+
   $_[0] = <$pdfFile>;
 }
 
+###############################################################################
+sub modifyHeaderHandler {
+  my ($hopts, $request) = @_;
+
+  my $query = Foswiki::Func::getCgiQuery();
+  my $contenttype = $query->param("contenttype") || 'text/html';
+
+  # is this a pdf view?
+  return unless $contenttype eq "application/pdf";
+
+  # add disposition
+  $hopts->{'Content-Disposition'} = "inline;filename=$baseTopic.pdf";
+}
+
 1;
diff --git a/lib/Foswiki/Plugins/GenPDFPrincePlugin/build.pl b/lib/Foswiki/Plugins/GenPDFPrincePlugin/build.pl
index 776c5dc..b9f14e6 100755
--- a/lib/Foswiki/Plugins/GenPDFPrincePlugin/build.pl
+++ b/lib/Foswiki/Plugins/GenPDFPrincePlugin/build.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl -w
 BEGIN {
-  foreach my $pc (split(/:/, $ENV{TWIKI_LIBS})) {
+  foreach my $pc (split(/:/, $ENV{FOSWIKI_LIBS})) {
     unshift @INC, $pc;
   }
 }