diff --git a/src/IDF/Views/Issue.php b/src/IDF/Views/Issue.php
index bc0689c..a13c48a 100644
--- a/src/IDF/Views/Issue.php
+++ b/src/IDF/Views/Issue.php
@@ -323,12 +323,50 @@ class IDF_Views_Issue
         $prj = $request->project;
         $attach = Pluf_Shortcuts_GetObjectOr404('IDF_IssueFile', $match[2]);
         $prj->inOr404($attach->get_comment()->get_issue());
+        $info = IDF_Views_Source::getMimeType($attach->filename);
+        $mime = 'application/octet-stream';
+        if (strpos($info[0], 'image/') === 0) {
+            $mime = $info[0];
+        }
         $res = new Pluf_HTTP_Response_File(Pluf::f('upload_issue_path').'/'.$attach->attachment,
-                                           'application/octet-stream');
-        $res->headers['Content-Disposition'] = 'attachment; filename="'.$attach->filename.'"';
+                                           $mime);
+        if ($mime == 'application/octet-stream') {
+            $res->headers['Content-Disposition'] = 'attachment; filename="'.$attach->filename.'"';
+        }
         return $res;
     }
 
+    /**
+     * View a given attachment.
+     */
+    public $viewAttachment_precond = array('IDF_Precondition::accessIssues');
+    public function viewAttachment($request, $match)
+    {
+        $prj = $request->project;
+        $attach = Pluf_Shortcuts_GetObjectOr404('IDF_IssueFile', $match[2]);
+        $prj->inOr404($attach->get_comment()->get_issue());
+        // If one cannot see the attachement, redirect to the
+        // getAttachment view.
+        $info = IDF_Views_Source::getMimeType($attach->filename);
+        if (!IDF_Views_Source::isText($info)) {
+            return $this->getAttachment($request, $match);
+        }
+        // Now we want to look at the file but with links back to the
+        // issue.
+        $file = IDF_Views_Source::highLight($info, 
+                                            file_get_contents(Pluf::f('upload_issue_path').'/'.$attach->attachment));
+        $title = sprintf(__('View %s'), $attach->filename);
+        return Pluf_Shortcuts_RenderToResponse('idf/issues/attachment.html',
+                                               array(
+                                                     'attachment' => $attach,
+                                                     'page_title' => $title,
+                                                     'comment' => $attach->get_comment(),
+                                                     'issue' => $attach->get_comment()->get_issue(),
+                                                     'file' => $file,
+                                                     ),
+                                               $request);
+    }
+
     /**
      * View list of issues for a given project with a given status.
      */
diff --git a/src/IDF/Views/Source.php b/src/IDF/Views/Source.php
index 85fb72f..ad24ed6 100644
--- a/src/IDF/Views/Source.php
+++ b/src/IDF/Views/Source.php
@@ -401,7 +401,7 @@ class IDF_Views_Source
         if (0 === strpos($fileinfo[0], 'text/')) {
             return true;
         }
-        $ext = 'mdtext php js cpp php-dist h gitignore sh py pl rb '
+        $ext = 'mdtext php js cpp php-dist h gitignore sh py pl rb diff patch'
             .Pluf::f('idf_extra_text_ext', '');
         return (in_array($fileinfo[2], explode(' ', $ext)));
     }
diff --git a/src/IDF/conf/urls.php b/src/IDF/conf/urls.php
index 30b5ee9..09c9f69 100644
--- a/src/IDF/conf/urls.php
+++ b/src/IDF/conf/urls.php
@@ -174,6 +174,12 @@ $ctl[] = array('regex' => '#^/p/([\-\w]+)/issues/attachment/(\d+)/(.*)$#',
                'model' => 'IDF_Views_Issue',
                'method' => 'getAttachment');
 
+$ctl[] = array('regex' => '#^/p/([\-\w]+)/issues/view/attachment/(\d+)/(.*)$#',
+               'base' => $base,
+               'priority' => 4,
+               'model' => 'IDF_Views_Issue',
+               'method' => 'viewAttachment');
+
 // ---------- SCM ----------------------------------------
 
 $ctl[] = array('regex' => '#^/p/([\-\w]+)/source/tree/([^/]+)/$#',
diff --git a/src/IDF/templates/idf/issues/attachment.html b/src/IDF/templates/idf/issues/attachment.html
new file mode 100644
index 0000000..4bfdade
--- /dev/null
+++ b/src/IDF/templates/idf/issues/attachment.html
@@ -0,0 +1,26 @@
+{extends "idf/issues/base.html"}
+{block extraheader}<link rel="stylesheet" type="text/css" href="{media '/idf/css/prettify.css'}" />{/block}
+{block docclass}yui-t2{assign $inIssue=true}{/block}
+{block body}
+<table class="code" summary=" ">
+<tbody>
+{$file}
+</tbody>
+</table>
+{aurl 'url', 'IDF_Views_Issue::getAttachment', array($project.shortname, $attachment.id, $attachment.filename)}
+<p class="right soft"><a href="{$url}"><img style="vertical-align: text-bottom;" src="{media '/idf/img/package-grey.png'}" alt="{trans 'Archive'}" align="bottom" /></a> <a href="{$url}">{trans 'Download this file'}</a></p>
+
+{/block}
+{block context}
+{aurl 'url', 'IDF_Views_Issue::view', array($project.shortname, $issue.id)}
+{assign $url = $url~'#ic'~$comment.id}
+<p>{blocktrans}Attachment to issue <a href="{$url}">{$issue.id}</a>{/blocktrans}</p>
+{ashowuser 'submitter', $attachment.get_submitter(), $request}
+<p><strong>{trans 'Created:'}</strong> <span class="nobrk">{$attachment.creation_dtime|dateago}</span> <span class="nobrk">{blocktrans}by {$submitter}{/blocktrans}</span></p>
+
+{/block}
+
+{block javascript}
+<script type="text/javascript" src="{media '/idf/js/prettify.js'}"></script>
+<script type="text/javascript">prettyPrint();</script>
+{/block}
diff --git a/src/IDF/templates/idf/issues/base.html b/src/IDF/templates/idf/issues/base.html
index 836ae9b..8c142f8 100644
--- a/src/IDF/templates/idf/issues/base.html
+++ b/src/IDF/templates/idf/issues/base.html
@@ -8,6 +8,10 @@
 <input accesskey="4" type="text" value="{$q}" name="q" size="20" />
 <input type="submit" name="s" value="{trans 'Search'}" />
 </form>
+{if $inIssue} |
+{aurl 'url', 'IDF_Views_Issue::view', array($project.shortname, $issue.id)}
+<a href="{$url}">{trans 'Back to the issue'}</a>
+{/if}
 {superblock}
 </div>
 {/block}
diff --git a/src/IDF/templates/idf/issues/issue-created-email.txt b/src/IDF/templates/idf/issues/issue-created-email.txt
index d17b268..cd635ae 100644
--- a/src/IDF/templates/idf/issues/issue-created-email.txt
+++ b/src/IDF/templates/idf/issues/issue-created-email.txt
@@ -16,7 +16,7 @@ to you:{/blocktrans}
 {if $attachments.count() > 0}
 {trans 'Attachments:'}{foreach $attachments as $a}
 - {$a.filename|safe} - {$a.filesize|ssize}
-  {$url_base}{url 'IDF_Views_Issue::getAttachment', array($project.shortname, $a.id, $a.filename)}{/foreach}
+  {$url_base}{url 'IDF_Views_Issue::viewAttachment', array($project.shortname, $a.id, $a.filename)}{/foreach}
 {/if}
 --
 {trans 'Issue:'} {$url_base}{url 'IDF_Views_Issue::view', array($project.shortname, $issue.id)}
diff --git a/src/IDF/templates/idf/issues/issue-updated-email.txt b/src/IDF/templates/idf/issues/issue-updated-email.txt
index a7658de..aaee025 100644
--- a/src/IDF/templates/idf/issues/issue-updated-email.txt
+++ b/src/IDF/templates/idf/issues/issue-updated-email.txt
@@ -20,7 +20,7 @@
 
 {trans 'Attachments:'}{foreach $attachments as $a}
 - {$a.filename|safe} - {$a.filesize|ssize}
-  {$url_base}{url 'IDF_Views_Issue::getAttachment', array($project.shortname, $a.id, $a.filename)}{/foreach}
+  {$url_base}{url 'IDF_Views_Issue::viewAttachment', array($project.shortname, $a.id, $a.filename)}{/foreach}
 {/if}
 
 {/foreach}
diff --git a/src/IDF/templates/idf/issues/view.html b/src/IDF/templates/idf/issues/view.html
index a9d9d8a..2807b5e 100644
--- a/src/IDF/templates/idf/issues/view.html
+++ b/src/IDF/templates/idf/issues/view.html
@@ -20,7 +20,7 @@
 {if $attachments.count() > 0}
 <hr align="left" class="attach" />
 <ul>
-{foreach $attachments as $a}<li><a href="{url 'IDF_Views_Issue::getAttachment', array($project.shortname, $a.id, $a.filename)}">{$a.filename}</a> - {$a.filesize|size}</li>{/foreach}
+{foreach $attachments as $a}<li><a href="{url 'IDF_Views_Issue::viewAttachment', array($project.shortname, $a.id, $a.filename)}">{$a.filename}</a> - {$a.filesize|size}</li>{/foreach}
 </ul>{/if}
 {if $i> 0 and $c.changedIssue()}
 <div class="issue-changes">