Add edit template for dirdir

lib/_apps/dirdir/edit.tpl

@@ -0,0 +1,56 @@
+%{
+get_post_args edit_wiki_page edit_text edit_preview edit_save
+
+# XXX SECURITY HOLE! should sanitize form input and make sure we only edit files we are allowed
+# This is a start, but should be way more careful
+edit_file = `{echo $sitedir/$edit_wiki_page.md|sed 's/\.\.*/./g'}
+
+if(! ~ $"edit_preview '') {
+%}
+            <H2>Preview:</H2>
+            <div id="preview">
+%               echo $edit_text | $formatter
+            </div>
+            <hr /><hr />
+%{
+}
+if not if (! ~ $"edit_save '') {
+    dirdir_dir = $edit_file^'_werc/dirdir/'
+
+    if(! test -d  $dirdir_dir)
+        mkdir -p $dirdir_dir
+
+    dirdir_verdir = $dirdir_dir/`{date -n}^/
+    mkdir $dirdir_verdir
+
+    echo $loggin_user > $dirdir_verdir/author
+    echo $edit_text > $dirdir_verdir/data 
+    echo $edit_text > $edit_file
+%}
+<h1>Saved <a href="%($edit_wiki_page%)">%($edit_wiki_page%)!</a></h1>
+%{
+}
+if not {
+%}
+
+<div>
+    <h1>Editing %($req_path%)</h1>
+    <br />
+    <form action="/_apps/dirdir/edit" method="post">
+        <input type="hidden" name="edit_wiki_page" value="%($edit_wiki_page%)"
+        <textarea name="edit_text" id="edit_text" cols="80" rows="43">%{
+
+if(~ $#edit_text 0 && test -f $edit_file)
+    cat $edit_file | escape_html
+if not
+    echo $edit_text | escape_html
+
+        %}</textarea>
+        <br />
+        <input type="submit" name="edit_save" value="Save"/>
+        <input type="submit" name="edit_preview" value="Preview" />
+        <small>DirDir documents are written using <a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a>.</small>
+    </form>
+</div>
+% }
+