Patch for bug 235459: add icalendar output format in buglist; patch by William…

Bugzilla/Constants.pm

@@ -103,6 +103,7 @@ use constant contenttypes =>
    "js" => "application/x-javascript" , 
    "csv" => "text/plain" ,
    "png" => "image/png" ,
+   "ics" => "text/calendar" ,
   };
 
 1;

Bugzilla/Template.pm

@@ -293,6 +293,31 @@ sub create {
                 return $var;
             },
             
+            # iCalendar contentline filter
+            ics => [ sub {
+                         my ($context, @args) = @_;
+                         return sub {
+                             my ($var) = shift;
+                             my ($par) = shift @args;
+                             my ($output) = "";
+
+                             $var =~ s/[\r\n]/ /g;
+                             $var =~ s/([;\\\"])/\\$1/g;
+
+                             if ($par) {
+                                 $output = sprintf("%s:%s", $par, $var);
+                             } else {
+                                 $output = $var;
+                             }
+                             
+                             $output =~ s/(.{75,75})/$1\n /g;
+
+                             return $output;
+                         };
+                     },
+                     1
+                     ],
+
             # We force filtering of every variable in key security-critical
             # places; we have a none filter for people to use when they 
             # really, really don't want a variable to be changed.

buglist.cgi

@@ -172,6 +172,14 @@ sub DiffDate {
     return $date;
 }
 
+sub iCalendarDateTime {
+    my ($datestr) = @_;
+    my $date = str2time($datestr);
+    my ($s,$m,$h,$d,$mo,$y,$wd)= gmtime $date;
+    $date = sprintf "%04d%02d%02dT%02d%02d%02dZ", 1900+$y,$mo+1,$d,$h,$m,$s;
+    return $date;
+}
+
 sub LookupNamedQuery {
     my ($name) = @_;
     confirm_login();
@@ -525,6 +533,9 @@ if ($dotweak) {
     push(@selectcolumns, "bug_status") if !grep($_ eq 'bug_status', @selectcolumns);
 }
 
+if ($format->{'extension'} eq 'ics') {
+    push(@selectcolumns, "opendate") if !grep($_ eq 'opendate', @selectcolumns);
+}
 
 ################################################################################
 # Query Generation
@@ -712,10 +723,23 @@ while (my @row = FetchSQLData()) {
     # Process certain values further (i.e. date format conversion).
     if ($bug->{'changeddate'}) {
         $bug->{'changeddate'} =~ 
-          s/^(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})$/$1-$2-$3 $4:$5:$6/;
-        $bug->{'changeddate'} = DiffDate($bug->{'changeddate'});
+            s/^(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})$/$1-$2-$3 $4:$5:$6/;
+        if ($format->{'extension'} eq 'ics') {
+            $bug->{'changeddate'} = iCalendarDateTime($bug->{'changeddate'});
+        }
+        else {
+            $bug->{'changeddate'} = DiffDate($bug->{'changeddate'});
+        }
+    }
+
+    if ($bug->{'opendate'}) {
+        if ($format->{'extension'} eq 'ics') {
+            $bug->{'opendate'} = iCalendarDateTime($bug->{'opendate'});
+        }
+        else {
+            $bug->{'opendate'} = DiffDate($bug->{'opendate'});
+        }
     }
-    ($bug->{'opendate'} = DiffDate($bug->{'opendate'})) if $bug->{'opendate'};
 
     # Record the owner, product, and status in the big hashes of those things.
     $bugowners->{$bug->{'assigned_to'}} = 1 if $bug->{'assigned_to'};
@@ -800,6 +824,9 @@ $vars->{'splitheader'} = $::COOKIE{'SPLITHEADER'} ? 1 : 0;
 
 $vars->{'quip'} = GetQuip();
 $vars->{'currenttime'} = time();
+if ($format->{'extension'} eq 'ics') {
+    $vars->{'currenttime'} = iCalendarDateTime(scalar gmtime $vars->{'currenttime'});
+}
 
 # The following variables are used when the user is making changes to multiple bugs.
 if ($dotweak) {

t/008filter.t

@@ -202,7 +202,7 @@ sub directive_ok {
     # Note: If a single directive prints two things, and only one is 
     # filtered, we may not catch that case.
     return 1 if $directive =~ /FILTER\ (html|csv|js|url_quote|css_class_quote|
-                                        quoteUrls|time|uri|xml|lower|
+                                        ics|quoteUrls|time|uri|xml|lower|
                                         unitconvert|none)/x;
 
     return 0;

template/en/default/list/list.html.tmpl

@@ -139,6 +139,8 @@
       <td valign="middle">
         <a href="buglist.cgi?
         [% urlquerypart FILTER html %]&amp;ctype=csv">CSV</a> |
+        <a href="buglist.cgi?
+        [% urlquerypart FILTER html %]&amp;ctype=ics">iCalendar</a> |
         <a href="colchange.cgi?
         [% urlquerypart FILTER html %]">Change&nbsp;Columns</a> |
 

template/en/default/list/list.ics.tmpl

+[%# 1.0@bugzilla.org %]
+[%# The contents of this file are subject to the Mozilla Public
+  # License Version 1.1 (the "License"); you may not use this file
+  # except in compliance with the License. You may obtain a copy of
+  # the License at http://www.mozilla.org/MPL/
+  #
+  # Software distributed under the License is distributed on an "AS
+  # IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+  # implied. See the License for the specific language governing
+  # rights and limitations under the License.
+  #
+  # The Original Code is the Bugzilla Bug Tracking System.
+  #
+  # The Initial Developer of the Original Code is Netscape Communications
+  # Corporation. Portions created by Netscape are
+  # Copyright (C) 1998 Netscape Communications Corporation. All
+  # Rights Reserved.
+  #
+  # Contributor(s): William Jon McCann <mccann@jhu.edu>
+  #%]
+[% PROCESS global/variables.none.tmpl %]
+BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+[%+ PROCESS ics_prodid +%]
+VERSION:2.0
+[% FOREACH bug = bugs %]
+BEGIN:VTODO
+[%+ PROCESS ics_dtstart +%]
+[%+ PROCESS ics_summary +%]
+[%+ PROCESS ics_uid base_url=Param('urlbase') bug_id=bug.bug_id +%]
+[%+ PROCESS ics_url base_url=Param('urlbase') bug_id=bug.bug_id +%]
+[%+ PROCESS ics_status bug_status = bug.bug_status +%]
+[%+ PROCESS ics_dtstamp +%]
+[% IF bug.changeddate %]
+[%+ bug.changeddate FILTER ics('LAST-MODIFIED') +%]
+[% END %]
+[% IF bug.percentage_complete %]
+[%+ bug.percentage_complete FILTER format('%d') FILTER ics('PERCENT-COMPLETE') +%]
+[% END %]
+[% IF bug.product %]
+[%+ bug.product FILTER ics('X-BUGZILLA-PRODUCT') +%]
+[% END %]
+[% IF bug.component %]
+[%+ bug.component FILTER ics('X-BUGZILLA-COMPONENT') +%]
+[% END %]
+[% IF bug.version %]
+[%+ bug.version FILTER ics('X-BUGZILLA-VERSION') +%]
+[% END %]
+[% IF bug.keywords %]
+[%+ bug.keywords FILTER ics('X-BUGZILLA-KEYWORDS') +%]
+[% END %]
+END:VTODO
+[% END %]
+END:VCALENDAR
+
+[% BLOCK ics_prodid %]
+  [% "-//Mozilla/Bugzilla $VERSION//EN" FILTER ics('PRODID') %]
+[% END %]
+
+[% BLOCK ics_uid %]
+  [% "${bug_id}@${base_url}" FILTER uri FILTER ics('UID') %]
+[% END %]
+
+[% BLOCK ics_url %]
+  [% "${base_url}show_bug.cgi?id=${bug_id}" FILTER uri FILTER ics('URL;VALUE=URI') %]
+[% END %]
+
+[% BLOCK ics_dtstart %]
+  [% bug.opendate FILTER ics('DTSTART') %]
+[% END %]
+
+[% BLOCK ics_dtstamp %]
+  [% currenttime FILTER ics('DTSTAMP') %]
+[% END %]
+
+[% BLOCK ics_status %]
+  [% status = "" %]
+  [% FOREACH state = closedstates %]
+    [% IF bug_status == state %]
+      [% status = 'COMPLETED' %]
+      [% LAST %]
+    [% END %]
+  [% END %]
+  [% IF NOT status %]
+    [% IF bug_status == 'ASSIGNED' %]
+      [% status = 'IN-PROGRESS' %]
+    [% ELSE %]
+      [% status = 'NEEDS-ACTION' %]
+    [% END %]
+  [% END %]
+  [% status FILTER ics('STATUS') %]
+[% END %]
+
+[% BLOCK ics_summary %]
+  [% IF bug.short_desc %]
+    [% summary = bug.short_desc %]
+  [% ELSIF bug.short_short_desc %]
+    [% summary = bug.short_short_desc %]
+  [% ELSE %]
+    [% summary = "$terms.Bug $bug.bug_id" %]
+  [% END %]
+  [% summary FILTER ics('SUMMARY') %]
+[% END %]