Bug 801713: implement "bug shadowing" feature

11 files changed, 327 insertions, 1 deletions

diff --git a/extensions/InlineHistory/Extension.pm b/extensions/InlineHistory/Extension.pm
index 61a263f61..2e388994a 100644
--- a/extensions/InlineHistory/Extension.pm
+++ b/extensions/InlineHistory/Extension.pm
@@ -90,10 +90,16 @@ sub template_before_process {
                 $change->{added} = $change->{added} ? 'true' : 'false';
             }
 
+            my $field_obj;
+            if ($change->{fieldname} =~ /^cf_/) {
+                $field_obj = Bugzilla::Field->new({ name => $change->{fieldname} });
+            }
+
             # identify buglist changes
             if ($change->{fieldname} eq 'blocked' ||
                 $change->{fieldname} eq 'dependson' ||
-                $change->{fieldname} eq 'dupe'
+                $change->{fieldname} eq 'dupe' ||
+                ($field_obj && $field_obj->type == FIELD_TYPE_BUG_ID)
             ) {
                 $change->{buglist} = 1;
                 foreach my $what (qw(removed added)) {
diff --git a/extensions/ShadowBugs/Config.pm b/extensions/ShadowBugs/Config.pm
new file mode 100644
index 000000000..6999edaf3
--- /dev/null
+++ b/extensions/ShadowBugs/Config.pm
@@ -0,0 +1,15 @@
+# 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/.
+#
+# This Source Code Form is "Incompatible With Secondary Licenses", as
+# defined by the Mozilla Public License, v. 2.0.
+
+package Bugzilla::Extension::ShadowBugs;
+use strict;
+
+use constant NAME => 'ShadowBugs';
+use constant REQUIRED_MODULES => [];
+use constant OPTIONAL_MODULES => [];
+
+__PACKAGE__->NAME;
diff --git a/extensions/ShadowBugs/Extension.pm b/extensions/ShadowBugs/Extension.pm
new file mode 100644
index 000000000..b015a6164
--- /dev/null
+++ b/extensions/ShadowBugs/Extension.pm
@@ -0,0 +1,99 @@
+# 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/.
+#
+# This Source Code Form is "Incompatible With Secondary Licenses", as
+# defined by the Mozilla Public License, v. 2.0.
+
+package Bugzilla::Extension::ShadowBugs;
+
+use strict;
+
+use base qw(Bugzilla::Extension);
+
+use Bugzilla::Bug;
+use Bugzilla::Error;
+use Bugzilla::Field;
+use Bugzilla::User;
+
+our $VERSION = '1';
+
+BEGIN {
+    *Bugzilla::is_cf_shadow_bug_hidden = \&_is_cf_shadow_bug_hidden;
+    *Bugzilla::Bug::cf_shadow_bug_obj = \&_cf_shadow_bug_obj;
+}
+
+# Determine if the shadow-bug / shadowed-by fields are visibile on the
+# specified bug.
+sub _is_cf_shadow_bug_hidden {
+    my ($self, $bug) = @_;
+
+    # completely hide unless you're a member of the right group
+    return 1 unless Bugzilla->user->in_group('can_shadow_bugs');
+
+    my $is_public = Bugzilla::User->new()->can_see_bug($bug->id);
+    if ($is_public) {
+        # hide on public bugs, unless it's shadowed
+        my $related = $bug->related_bugs(Bugzilla->process_cache->{shadow_bug_field});
+        return 1 if !@$related;
+    }
+}
+
+sub _cf_shadow_bug_obj {
+    my ($self) = @_;
+    return unless $self->cf_shadow_bug;
+    return $self->{cf_shadow_bug_obj} ||= Bugzilla::Bug->new($self->cf_shadow_bug);
+}
+
+sub template_before_process {
+    my ($self, $args) = @_;
+    my $file = $args->{'file'};
+    my $vars = $args->{'vars'};
+
+    Bugzilla->process_cache->{shadow_bug_field} ||= Bugzilla::Field->new({ name => 'cf_shadow_bug' });
+
+    return unless Bugzilla->user->in_group('can_shadow_bugs');
+    return unless
+        $file eq 'bug/edit.html.tmpl'
+        || $file eq 'bug/show.html.tmpl'
+        || $file eq 'bug/show-header.html.tmpl';
+    my $bug = exists $vars->{'bugs'} ? $vars->{'bugs'}[0] : $vars->{'bug'};
+    return unless $bug->cf_shadow_bug;
+    $vars->{is_shadow_bug} = 1;
+
+    if ($file eq 'bug/edit.html.tmpl') {
+        # load comments from other bug
+        $vars->{shadow_comments} = $bug->cf_shadow_bug_obj->comments;
+    }
+}
+
+sub bug_end_of_update {
+    my ($self, $args) = @_;
+
+    # don't allow shadowing non-public bugs
+    if (exists $args->{changes}->{cf_shadow_bug}) {
+        my ($old_id, $new_id) = @{ $args->{changes}->{cf_shadow_bug} };
+        if ($new_id) {
+            if (!Bugzilla::User->new()->can_see_bug($new_id)) {
+                ThrowUserError('illegal_shadow_bug_public', { id => $new_id });
+            }
+        }
+    }
+
+    # if a shadow bug is made public, clear the shadow_bug field
+    if (exists $args->{changes}->{bug_group}) {
+        my $bug = $args->{bug};
+        return unless my $shadow_id = $bug->cf_shadow_bug;
+        my $is_public = Bugzilla::User->new()->can_see_bug($bug->id);
+        if ($is_public) {
+            Bugzilla->dbh->do(
+                "UPDATE bugs SET cf_shadow_bug=NULL WHERE bug_id=?",
+                undef, $bug->id);
+            LogActivityEntry($bug->id, 'cf_shadow_bug', $shadow_id, '',
+                            Bugzilla->user->id, $args->{timestamp});
+
+        }
+    }
+}
+
+__PACKAGE__->NAME;
diff --git a/extensions/ShadowBugs/template/en/default/hook/bug/comments-aftercomments.html.tmpl b/extensions/ShadowBugs/template/en/default/hook/bug/comments-aftercomments.html.tmpl
new file mode 100644
index 000000000..d8dae521a
--- /dev/null
+++ b/extensions/ShadowBugs/template/en/default/hook/bug/comments-aftercomments.html.tmpl
@@ -0,0 +1,70 @@
+[%# 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/.
+  #
+  # This Source Code Form is "Incompatible With Secondary Licenses", as
+  # defined by the Mozilla Public License, v. 2.0.
+  #%]
+
+[% RETURN UNLESS is_shadow_bug %]
+
+[% public_bug = bug.cf_shadow_bug_obj %]
+[% count = 0 %]
+[% FOREACH comment = shadow_comments %]
+  [% IF count >= start_at %]
+    [% PROCESS a_comment %]
+  [% END %]
+  [% count = count + increment %]
+[% END %]
+
+[% BLOCK a_comment %]
+  [% RETURN IF comment.is_private AND NOT (user.is_insider || user.id == comment.author.id) %]
+  [% comment_text = comment.body_full %]
+  [% RETURN IF comment_text == '' %]
+
+  <div id="pc[% count %]" class="bz_comment[% " bz_private" IF comment.is_private %]
+              shadow_bug_comment bz_default_hidden
+              [% " bz_first_comment" IF count == description %]">
+    [% IF count == description %]
+      [% class_name = "bz_first_comment_head" %]
+      [% comment_label = "Public Description" %]
+    [% ELSE %]
+      [% class_name = "bz_comment_head" %]
+      [% comment_label = "Public Comment " _ count %]
+    [% END %]
+
+    <div class="[% class_name FILTER html %]">
+      <span class="bz_comment_number">
+        <a href="show_bug.cgi?id=[% public_bug.bug_id FILTER none %]#c[% count %]">
+          [%- comment_label FILTER html %]</a>
+      </span>
+
+      <span class="bz_comment_user">
+        [% commenter_id = comment.author.id %]
+        [% UNLESS user_cache.$commenter_id %]
+          [% user_cache.$commenter_id = BLOCK %]
+            [% INCLUDE global/user.html.tmpl who = comment.author %]
+          [% END %]
+        [% END %]
+        [% user_cache.$commenter_id FILTER none %]
+        [% Hook.process('user', 'bug/comments.html.tmpl') %]
+      </span>
+
+      <span class="bz_comment_user_images">
+        [% FOREACH group = comment.author.groups_with_icon %]
+          <img src="[% group.icon_url FILTER html %]"
+                alt="[% group.name FILTER html %]"
+                title="[% group.name FILTER html %] - [% group.description FILTER html %]">
+        [% END %]
+      </span>
+
+      <span class="bz_comment_time">
+        [%+ comment.creation_ts FILTER time %]
+      </span>
+    </div>
+
+<pre class="bz_comment_text">
+  [%- comment_text FILTER quoteUrls(public_bug, comment) -%]
+</pre>
+    </div>
+[% END %]
diff --git a/extensions/ShadowBugs/template/en/default/hook/bug/edit-after_comment_textarea.html.tmpl b/extensions/ShadowBugs/template/en/default/hook/bug/edit-after_comment_textarea.html.tmpl
new file mode 100644
index 000000000..9873ea3d7
--- /dev/null
+++ b/extensions/ShadowBugs/template/en/default/hook/bug/edit-after_comment_textarea.html.tmpl
@@ -0,0 +1,13 @@
+[%# 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/.
+  #
+  # This Source Code Form is "Incompatible With Secondary Licenses", as
+  # defined by the Mozilla Public License, v. 2.0.
+  #%]
+
+[% RETURN UNLESS is_shadow_bug %]
+
+<br>
+<a href="show_bug.cgi?id=[% bug.cf_shadow_bug FILTER none %]#comment">Add public comment</a>
+
diff --git a/extensions/ShadowBugs/template/en/default/hook/bug/edit-after_custom_fields.html.tmpl b/extensions/ShadowBugs/template/en/default/hook/bug/edit-after_custom_fields.html.tmpl
new file mode 100644
index 000000000..8e8327ef2
--- /dev/null
+++ b/extensions/ShadowBugs/template/en/default/hook/bug/edit-after_custom_fields.html.tmpl
@@ -0,0 +1,27 @@
+[%# 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/.
+  #
+  # This Source Code Form is "Incompatible With Secondary Licenses", as
+  # defined by the Mozilla Public License, v. 2.0.
+  #%]
+
+[% RETURN IF Bugzilla.is_cf_shadow_bug_hidden(bug) %]
+[% field = Bugzilla.process_cache.shadow_bug_field %]
+[% shadowed_by = bug.related_bugs(field).pop %]
+<tr>
+  [% IF shadowed_by && user.can_see_bug(shadowed_by) %]
+    <th class="field_label">
+      [% field.reverse_desc FILTER html %]:
+    </th>
+    <td>
+      [% shadowed_by.id FILTER bug_link(shadowed_by, use_alias => 1) FILTER none %][% " " %]
+    </td>
+  [% ELSE %]
+    [% PROCESS bug/field.html.tmpl
+        value      = bug.cf_shadow_bug
+        editable   = bug.check_can_change_field(field.name, 0, 1)
+        no_tds     = false
+        value_span = 2 %]
+  [% END %]
+</tr>
diff --git a/extensions/ShadowBugs/template/en/default/hook/bug/edit-custom_field.html.tmpl b/extensions/ShadowBugs/template/en/default/hook/bug/edit-custom_field.html.tmpl
new file mode 100644
index 000000000..4389b27ad
--- /dev/null
+++ b/extensions/ShadowBugs/template/en/default/hook/bug/edit-custom_field.html.tmpl
@@ -0,0 +1,9 @@
+[%# 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/.
+  #
+  # This Source Code Form is "Incompatible With Secondary Licenses", as
+  # defined by the Mozilla Public License, v. 2.0.
+  #%]
+
+[% field.hidden = field.name == 'cf_shadow_bug' %]
diff --git a/extensions/ShadowBugs/template/en/default/hook/bug/show-header-end.html.tmpl b/extensions/ShadowBugs/template/en/default/hook/bug/show-header-end.html.tmpl
new file mode 100644
index 000000000..5786b3df6
--- /dev/null
+++ b/extensions/ShadowBugs/template/en/default/hook/bug/show-header-end.html.tmpl
@@ -0,0 +1,12 @@
+[%# 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/.
+  #
+  # This Source Code Form is "Incompatible With Secondary Licenses", as
+  # defined by the Mozilla Public License, v. 2.0.
+  #%]
+
+[% IF is_shadow_bug %]
+  [% style_urls.push('extensions/ShadowBugs/web/style.css') %]
+  [% javascript_urls.push('extensions/ShadowBugs/web/shadow-bugs.js') %]
+[% END %]
diff --git a/extensions/ShadowBugs/template/en/default/hook/global/user-error-errors.html.tmpl b/extensions/ShadowBugs/template/en/default/hook/global/user-error-errors.html.tmpl
new file mode 100644
index 000000000..775a7721e
--- /dev/null
+++ b/extensions/ShadowBugs/template/en/default/hook/global/user-error-errors.html.tmpl
@@ -0,0 +1,14 @@
+[%# 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/.
+  #
+  # This Source Code Form is "Incompatible With Secondary Licenses", as
+  # defined by the Mozilla Public License, v. 2.0.
+  #%]
+
+[% IF error == 'illegal_shadow_bug_public' %]
+  [% title = "Invalid Shadow " _ terms.Bug %]
+  You cannot shadow [% terms.bug %] [%+ id FILTER html %] because it is not a
+  public [% terms.bug %].
+[% END %]
+
diff --git a/extensions/ShadowBugs/web/shadow-bugs.js b/extensions/ShadowBugs/web/shadow-bugs.js
new file mode 100644
index 000000000..ff320e117
--- /dev/null
+++ b/extensions/ShadowBugs/web/shadow-bugs.js
@@ -0,0 +1,51 @@
+/* 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/.
+ *
+ * This Source Code Form is "Incompatible With Secondary Licenses", as
+ * defined by the Mozilla Public License, v. 2.0. */
+
+var shadow_bug = {
+    init: function() {
+        var Dom = YAHOO.util.Dom;
+        var comment_divs = Dom.getElementsByClassName('bz_comment', 'div', 'comments');
+        var comments = new Array();
+        for (var i = 0, l = comment_divs.length; i < l; i++) {
+            var time_spans = Dom.getElementsByClassName('bz_comment_time', 'span', comment_divs[i]);
+            if (!time_spans.length) continue;
+            var date = this.parse_date(time_spans[0].innerHTML);
+            if (!date) continue;
+
+            var comment = {};
+            comment.div = comment_divs[i];
+            comment.date = date;
+            comment.shadow = Dom.hasClass(comment.div, 'shadow_bug_comment');
+            comments.push(comment);
+        }
+
+        for (var i = 0, l = comments.length; i < l; i++) {
+            if (!comments[i].shadow) continue;
+            for (var j = 0, jl = comments.length; j < jl; j++) {
+                if (comments[j].shadow) continue;
+                if (comments[j].date > comments[i].date) {
+                    comments[j].div.parentNode.insertBefore(comments[i].div, comments[j].div);
+                    break;
+                }
+            }
+            Dom.removeClass(comments[i].div, 'bz_default_hidden');
+        }
+
+        Dom.get('comment').placeholder = 'Add non-public comment';
+    },
+
+    parse_date: function(date) {
+        var matches = date.match(/^\s*(\d+)-(\d+)-(\d+) (\d+):(\d+):(\d+)/);
+        if (!matches) return;
+        return (matches[1] + matches[2] + matches[3] + matches[4] + matches[5] + matches[6]) + 0;
+    }
+};
+
+
+YAHOO.util.Event.onDOMReady(function() {
+    shadow_bug.init();
+});
diff --git a/extensions/ShadowBugs/web/style.css b/extensions/ShadowBugs/web/style.css
new file mode 100644
index 000000000..0c104130f
--- /dev/null
+++ b/extensions/ShadowBugs/web/style.css
@@ -0,0 +1,10 @@
+/* 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/.
+ *
+ * This Source Code Form is "Incompatible With Secondary Licenses", as
+ * defined by the Mozilla Public License, v. 2.0. */
+
+.shadow_bug_comment {
+    background: transparent !important;
+}