Shows an icon next to the comment deletion icon, which leads to a
comment edit form.

Signed-off-by: Marcel Korpel <marcel.kor...@gmail.com>
---
 web/html/commentedit.php          | 21 +++++++++++++++
 web/html/css/aurweb.css           | 13 ++++++---
 web/html/images/pencil.min.svg    |  3 +++
 web/html/images/pencil.svg        | 55 +++++++++++++++++++++++++++++++++++++++
 web/html/index.php                |  4 +++
 web/html/pkgbase.php              |  4 +--
 web/lib/credentials.inc.php       |  2 ++
 web/lib/pkgbasefuncs.inc.php      | 19 ++++++++++++++
 web/lib/pkgfuncs.inc.php          | 14 ++++++++++
 web/template/pkg_comment_form.php | 10 ++++---
 web/template/pkg_comments.php     |  3 +++
 11 files changed, 139 insertions(+), 9 deletions(-)
 create mode 100644 web/html/commentedit.php
 create mode 100644 web/html/images/pencil.min.svg
 create mode 100644 web/html/images/pencil.svg

diff --git a/web/html/commentedit.php b/web/html/commentedit.php
new file mode 100644
index 0000000..a8b1819
--- /dev/null
+++ b/web/html/commentedit.php
@@ -0,0 +1,21 @@
+<?php
+
+set_include_path(get_include_path() . PATH_SEPARATOR . '../lib');
+
+include_once("aur.inc.php");
+include_once("pkgbasefuncs.inc.php");
+
+set_lang();
+check_sid();
+
+$comment_id = intval($_REQUEST['comment_id']);
+$comment = pkgbase_get_comment($comment_id);
+
+if (!isset($base_id) || !has_credential(CRED_COMMENT_EDIT, 
array(pkgbase_maintainer_uid($base_id))) || is_null($comment)) {
+       header('Location: /');
+       exit();
+}
+
+html_header(__("Edit comment"));
+include('pkg_comment_form.php');
+html_footer(AURWEB_VERSION);
diff --git a/web/html/css/aurweb.css b/web/html/css/aurweb.css
index adc02bb..b5ca1f3 100644
--- a/web/html/css/aurweb.css
+++ b/web/html/css/aurweb.css
@@ -96,17 +96,24 @@
        color: #999;
 }
 
-.delete-comment-form {
+.delete-comment-form, .edit-comment {
        float: right;
+       margin-left: 8px;
 }
 
-.delete-comment {
+.edit-comment {
+       height: 11px;
+       position: relative;
+       top: 1px;
+}
+
+.delete-comment, .edit-comment {
        -webkit-filter: grayscale(100%);
        filter: grayscale(100%);
        opacity: 0.6;
 }
 
-.delete-comment:hover {
+.delete-comment:hover, .edit-comment:hover {
        -webkit-filter: none;
        filter: none;
        opacity: 1;
diff --git a/web/html/images/pencil.min.svg b/web/html/images/pencil.min.svg
new file mode 100644
index 0000000..06125ae
--- /dev/null
+++ b/web/html/images/pencil.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 fill="#36a" d="m6 0l-1 1 2 2 1-1-2-2zm-2 2l-4 4v2h2l4-4-2-2z"/>
+</svg>
diff --git a/web/html/images/pencil.svg b/web/html/images/pencil.svg
new file mode 100644
index 0000000..91f0899
--- /dev/null
+++ b/web/html/images/pencil.svg
@@ -0,0 +1,55 @@
+<?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";
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd";
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape";
+   width="8"
+   height="8"
+   viewBox="0 0 8 8"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.91 r13725"
+   sodipodi:docname="pencil-arch.svg">
+  <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" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="659"
+     inkscape:window-height="480"
+     id="namedview6"
+     showgrid="false"
+     inkscape:zoom="29.5"
+     inkscape:cx="4"
+     inkscape:cy="4"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg2" />
+  <path
+     d="M6 0l-1 1 2 2 1-1-2-2zm-2 2l-4 4v2h2l4-4-2-2z"
+     id="path4"
+     style="fill:#3366aa;fill-opacity:1" />
+</svg>
diff --git a/web/html/index.php b/web/html/index.php
index 2d5f2a9..175a533 100644
--- a/web/html/index.php
+++ b/web/html/index.php
@@ -89,6 +89,9 @@ if (!empty($tokens[1]) && '/' . $tokens[1] == 
get_pkg_route()) {
                        case "comaintainers":
                                include('comaintainers.php');
                                return;
+                       case "edit-comment":
+                               include('commentedit.php');
+                               return;
                        default:
                                header("HTTP/1.0 404 Not Found");
                                include "./404.php";
@@ -174,6 +177,7 @@ if (!empty($tokens[1]) && '/' . $tokens[1] == 
get_pkg_route()) {
                readfile("./$path");
                break;
        case "/images/x.min.svg":
+       case "/images/pencil.min.svg":
                header("Content-Type: image/svg+xml");
                readfile("./$path");
                break;
diff --git a/web/html/pkgbase.php b/web/html/pkgbase.php
index 5179d0c..f908029 100644
--- a/web/html/pkgbase.php
+++ b/web/html/pkgbase.php
@@ -104,9 +104,7 @@ if (check_token()) {
                list($ret, $output) = pkgreq_close($_POST['reqid'], 
$_POST['reason'], $_POST['comments']);
        } elseif (current_action("do_EditComaintainers")) {
                list($ret, $output) = pkgbase_set_comaintainers($base_id, 
explode("\n", $_POST['users']));
-       }
-
-       if (isset($_REQUEST['comment'])) {
+       } elseif (current_action("do_AddComment")) {
                $uid = uid_from_sid($_COOKIE["AURSID"]);
                pkgbase_add_comment($base_id, $uid, $_REQUEST['comment']);
                $ret = true;
diff --git a/web/lib/credentials.inc.php b/web/lib/credentials.inc.php
index cf1fcca..648d78c 100644
--- a/web/lib/credentials.inc.php
+++ b/web/lib/credentials.inc.php
@@ -7,6 +7,7 @@ define("CRED_ACCOUNT_LAST_LOGIN", 4);
 define("CRED_ACCOUNT_SEARCH", 5);
 define("CRED_COMMENT_DELETE", 6);
 define("CRED_COMMENT_VIEW_DELETED", 22);
+define("CRED_COMMENT_EDIT", 25);
 define("CRED_PKGBASE_ADOPT", 7);
 define("CRED_PKGBASE_SET_KEYWORDS", 8);
 define("CRED_PKGBASE_DELETE", 9);
@@ -58,6 +59,7 @@ function has_credential($credential, $approved_users=array()) 
{
        case CRED_ACCOUNT_SEARCH:
        case CRED_COMMENT_DELETE:
        case CRED_COMMENT_VIEW_DELETED:
+       case CRED_COMMENT_EDIT:
        case CRED_PKGBASE_ADOPT:
        case CRED_PKGBASE_SET_KEYWORDS:
        case CRED_PKGBASE_DELETE:
diff --git a/web/lib/pkgbasefuncs.inc.php b/web/lib/pkgbasefuncs.inc.php
index 5d191eb..09282e9 100644
--- a/web/lib/pkgbasefuncs.inc.php
+++ b/web/lib/pkgbasefuncs.inc.php
@@ -102,6 +102,25 @@ function pkgbase_add_comment($base_id, $uid, $comment) {
 }
 
 /**
+ * Get a package comment
+ *
+ * @param  int $comment_id The ID of the comment
+ *
+ * @return string The comment
+ */
+function pkgbase_get_comment($comment_id) {
+       $dbh = DB::connect();
+       $q = "SELECT Comments FROM PackageComments ";
+       $q.= "WHERE ID = " . $comment_id;
+       $result = $dbh->query($q);
+       if (!$result) {
+               return null;
+       }
+
+       return $result->fetchColumn(0);
+}
+
+/**
  * Get a list of all packages a logged-in user has voted for
  *
  * @param string $sid The session ID of the visitor
diff --git a/web/lib/pkgfuncs.inc.php b/web/lib/pkgfuncs.inc.php
index 110290b..7cb2ffc 100644
--- a/web/lib/pkgfuncs.inc.php
+++ b/web/lib/pkgfuncs.inc.php
@@ -43,6 +43,20 @@ function can_delete_comment_array($comment) {
 }
 
 /**
+ * Determine if the user can edit a specific package comment using an array
+ *
+ * Only the comment submitter, Trusted Users, and Developers can edit
+ * comments. This function is used for the frontend side of comment editing.
+ *
+ * @param array $comment All database information relating a specific comment
+ *
+ * @return bool True if the user can edit the comment, otherwise false
+ */
+function can_edit_comment_array($comment) {
+       return has_credential(CRED_COMMENT_EDIT, array($comment['UsersID']));
+}
+
+/**
  * Check to see if the package name already exists in the database
  *
  * @param string $name The package name to check
diff --git a/web/template/pkg_comment_form.php 
b/web/template/pkg_comment_form.php
index 8a74dc1..16a92b1 100644
--- a/web/template/pkg_comment_form.php
+++ b/web/template/pkg_comment_form.php
@@ -1,5 +1,5 @@
 <div id="generic-form" class="box">
-       <h2><?= __("Add Comment"); ?></h2>
+       <h2><?= (isset($comment_id)) ? __('Edit comment for: %s', 
htmlspecialchars($pkgbase_name)) : __("Add Comment"); ?></h2>
        <form action="<?= get_pkgbase_uri($pkgbase_name) ?>" method="post">
                <fieldset>
 <?php
@@ -8,14 +8,18 @@ if (isset($_REQUEST['comment']) && check_token()) {
 }
 ?>
                        <div>
+                               <input type="hidden" name="action" value="<?= 
(isset($comment_id)) ? "do_EditComment" : "do_AddComment" ?>" />
                                <input type="hidden" name="ID" value="<?= 
intval($base_id) ?>" />
+                               <?php if (isset($comment_id)): ?>
+                               <input type="hidden" name="comment_id" 
value="<?= $comment_id ?>" />
+                               <?php endif; ?>
                                <input type="hidden" name="token" value="<?= 
htmlspecialchars($_COOKIE['AURSID']) ?>" />
                        </div>
                        <p>
-                               <textarea id="id_comment" name="comment" 
cols="80" rows="10"></textarea>
+                               <textarea id="id_comment" name="comment" 
cols="80" rows="10"><?= (isset($comment_id)) ? htmlspecialchars($comment) : "" 
?></textarea>
                        </p>
                        <p>
-                               <input type="submit" value="<?= __("Add 
Comment") ?>" />
+                               <input type="submit" value="<?= 
(isset($comment_id)) ? __("Save") : __("Add Comment") ?>" />
                        </p>
                </fieldset>
        </form>
diff --git a/web/template/pkg_comments.php b/web/template/pkg_comments.php
index 03a6581..6cc9555 100644
--- a/web/template/pkg_comments.php
+++ b/web/template/pkg_comments.php
@@ -39,6 +39,9 @@ $count = pkgbase_comments_count($base_id, $include_deleted);
                                        </fieldset>
                                </form>
                        <?php endif; ?>
+                       <?php if (!$row['DelUsersID'] && 
can_edit_comment_array($row)): ?>
+                       <a href="<?= 
htmlspecialchars(get_pkgbase_uri($pkgbase_name) . 'edit-comment/?comment_id=' . 
$row['ID'], ENT_QUOTES) ?>" class="edit-comment" title="<?= __('Edit comment') 
?>"><img src="/images/pencil.min.svg" alt="<?= __('Edit comment') ?>" 
width="11" height="11"></a>
+                       <?php endif; ?>
                </h4>
                <div class="article-content<?php if ($row['DelUsersID']): ?> 
comment-deleted<?php endif; ?>">
                        <p>
-- 
2.4.5

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