Add comment undeletion functionality

Only Developers and Trusted Users can undelete comments.

Signed-off-by: Marcel Korpel <marcel.korpel@gmail.com>
Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

5 files changed, 44 insertions, 3 deletions

diff --git a/web/html/css/aurweb.css b/web/html/css/aurweb.css
index 92ff8989..4c3fbe53 100644
--- a/web/html/css/aurweb.css
+++ b/web/html/css/aurweb.css
@@ -101,7 +101,7 @@
 	color: #999;
 }
 
-.delete-comment-form, .pin-comment-form, .edit-comment {
+.delete-comment-form, .undelete-comment-form, .pin-comment-form, .edit-comment {
 	float: right;
 	margin-left: 8px;
 }
@@ -112,13 +112,13 @@
 	top: 1px;
 }
 
-.delete-comment, .edit-comment, .pin-comment {
+.delete-comment, .undelete-comment, .edit-comment, .pin-comment {
 	-webkit-filter: grayscale(100%);
 	filter: grayscale(100%);
 	opacity: 0.6;
 }
 
-.delete-comment:hover, .edit-comment:hover, .pin-comment:hover {
+.delete-comment:hover, .undelete-comment:hover, .edit-comment:hover, .pin-comment:hover {
 	-webkit-filter: none;
 	filter: none;
 	opacity: 1;
diff --git a/web/html/images/action-undo.min.svg b/web/html/images/action-undo.min.svg
new file mode 100644
index 00000000..eb47bc47
--- /dev/null
+++ b/web/html/images/action-undo.min.svg
@@ -0,0 +1,3 @@
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="8" width="8" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" viewBox="0 0 8 8">
+<path d="m4.5 0c-1.93 0-3.5 1.57-3.5 3.5v0.5h-1l2 2 2-2h-1v-0.5c0-1.38 1.12-2.5 2.5-2.5s2.5 1.12 2.5 2.5c0-1.93-1.57-3.5-3.5-3.5z" transform="translate(0 1)" fill="#36a"/>
+</svg>
diff --git a/web/html/images/action-undo.svg b/web/html/images/action-undo.svg
new file mode 100644
index 00000000..b93ebb78
--- /dev/null
+++ b/web/html/images/action-undo.svg
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="svg2"
+   viewBox="0 0 8 8"
+   height="8"
+   width="8">
+  <metadata
+     id="metadata10">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs8" />
+  <path
+     style="fill:#3366aa;fill-opacity:1"
+     id="path4"
+     transform="translate(0 1)"
+     d="M4.5 0c-1.93 0-3.5 1.57-3.5 3.5v.5h-1l2 2 2-2h-1v-.5c0-1.38 1.12-2.5 2.5-2.5s2.5 1.12 2.5 2.5c0-1.93-1.57-3.5-3.5-3.5z" />
+</svg>
diff --git a/web/html/index.php b/web/html/index.php
index 0a9fd05d..3787d4e4 100644
--- a/web/html/index.php
+++ b/web/html/index.php
@@ -180,6 +180,7 @@ if (!empty($tokens[1]) && '/' . $tokens[1] == get_pkg_route()) {
 		readfile("./$path");
 		break;
 	case "/images/x.min.svg":
+	case "/images/action-undo.min.svg":
 	case "/images/pencil.min.svg":
 	case "/images/pin.min.svg":
 	case "/images/unpin.min.svg":
diff --git a/web/html/pkgbase.php b/web/html/pkgbase.php
index 45b8084b..11fdf74a 100644
--- a/web/html/pkgbase.php
+++ b/web/html/pkgbase.php
@@ -99,6 +99,11 @@ if (check_token()) {
 		list($ret, $output) = pkgbase_notify($ids, false);
 	} elseif (current_action("do_DeleteComment")) {
 		list($ret, $output) = pkgbase_delete_comment();
+	} elseif (current_action("do_UndeleteComment")) {
+		list($ret, $output) = pkgbase_delete_comment(true);
+		if ($ret && isset($_POST["comment_id"])) {
+			$fragment = '#comment-' . intval($_POST["comment_id"]);
+		}
 	} elseif (current_action("do_PinComment")) {
 		list($ret, $output) = pkgbase_pin_comment();
 	} elseif (current_action("do_UnpinComment")) {