client: Reimplement post source functionality

client/html/post_edit_sidebar.tpl

@@ -58,6 +58,16 @@
             </section>
         <% } %>
 
+        <% if (ctx.canEditPostSource) { %>
+            <section class='post-source'>
+                <%= ctx.makeTextInput({
+                    text: 'Source',
+                    name: 'source',
+                    value: ctx.post.source,
+                }) %>
+            </section>
+        <% } %>
+
         <% if (ctx.canEditPostTags) { %>
             <section class='tags'>
                 <%= ctx.makeTextInput({}) %>

client/html/post_readonly_sidebar.tpl

@@ -38,6 +38,14 @@
             <a href class='fit-both'>both</a>
         </section>
 
+        <% if (ctx.post.source) { %>
+            <section class='source'>
+                Source: <a href='<%- ctx.post.source %>' title='<%- ctx.post.source %>'>
+                    <%- ctx.post.prettyPrintSource() %>
+                </a>
+            </section>
+        <% } %>
+
         <section class='search'>
             Search on
             <a href='http://iqdb.org/?url=<%- encodeURIComponent(ctx.post.fullContentUrl) %>'>IQDB</a> &middot;