1 files changed, 40 insertions, 0 deletions

diff --git a/thumbnail/macro/Thumbnail.py b/thumbnail/macro/Thumbnail.py
new file mode 100644
index 0000000..0603435
--- /dev/null
+++ b/thumbnail/macro/Thumbnail.py
@@ -0,0 +1,40 @@
+from MoinMoin import wikiutil
+from MoinMoin.action import AttachFile
+
+
+def macro_Thumbnail(macro, attachment, height=200, width=None, link=True):
+    _ = macro.request.getText
+    formatter = macro.formatter
+
+    pagename, filename = AttachFile.absoluteName(attachment, formatter.page.page_name)
+    fname = wikiutil.taintfilename(filename)
+
+    if not macro.request.user.may.read(pagename):
+        return _('You are not allowed to view attachments of this page.')
+
+    if width:
+        size, dimension = width, "w"
+    else:
+        size, dimension = height, "h"
+
+    if AttachFile.exists(macro.request, pagename, fname):
+        url = AttachFile.getAttachUrl(pagename, fname, macro.request, do='get')
+
+        output = [
+            formatter.url(True, url) if link else "",
+            formatter.image(
+                macro.request.href(pagename, {
+                     "target": fname,
+                     "action": "Thumbnail",
+                     "do": "tc:{},{}".format(size, dimension)
+                })),
+            formatter.url(False) if link else "",
+        ]
+    else:
+        output = [
+            formatter.span(True, style="color: red"),
+            "No Image: {}".format(attachment),
+            formatter.span(False),
+        ]
+
+    return "".join(output)