From 1048ec1db83483a438695228a01e41a80ec22e05 Mon Sep 17 00:00:00 2001
From: mvantellingen <michaelvantellingen@gmail.com>
Date: Wed, 2 Feb 2011 21:45:56 +0100
Subject: [PATCH] Add the headers panel

---
 flaskext/debugtoolbar/panels/headers.py       | 56 +++++++++++++++++++
 .../templates/panels/headers.html             | 16 ++++++
 flaskext/debugtoolbar/toolbar.py              |  1 +
 3 files changed, 73 insertions(+)
 create mode 100644 flaskext/debugtoolbar/panels/headers.py
 create mode 100644 flaskext/debugtoolbar/templates/panels/headers.html

diff --git a/flaskext/debugtoolbar/panels/headers.py b/flaskext/debugtoolbar/panels/headers.py
new file mode 100644
index 0000000..87e4ca0
--- /dev/null
+++ b/flaskext/debugtoolbar/panels/headers.py
@@ -0,0 +1,56 @@
+from flaskext.debugtoolbar.panels import DebugPanel
+
+_ = lambda x: x
+
+
+class HeaderDebugPanel(DebugPanel):
+    """
+    A panel to display HTTP headers.
+    """
+    name = 'Header'
+    has_content = True
+    # List of headers we want to display
+    header_filter = (
+        'CONTENT_TYPE',
+        'HTTP_ACCEPT',
+        'HTTP_ACCEPT_CHARSET',
+        'HTTP_ACCEPT_ENCODING',
+        'HTTP_ACCEPT_LANGUAGE',
+        'HTTP_CACHE_CONTROL',
+        'HTTP_CONNECTION',
+        'HTTP_HOST',
+        'HTTP_KEEP_ALIVE',
+        'HTTP_REFERER',
+        'HTTP_USER_AGENT',
+        'QUERY_STRING',
+        'REMOTE_ADDR',
+        'REMOTE_HOST',
+        'REQUEST_METHOD',
+        'SCRIPT_NAME',
+        'SERVER_NAME',
+        'SERVER_PORT',
+        'SERVER_PROTOCOL',
+        'SERVER_SOFTWARE',
+    )
+
+    def nav_title(self):
+        return _('HTTP Headers')
+
+    def title(self):
+        return _('HTTP Headers')
+
+    def url(self):
+        return ''
+
+    def process_request(self, request):
+        self.headers = dict(
+            [(k, request.environ[k])
+                for k in self.header_filter if k in request.environ]
+        )
+
+    def content(self):
+        context = self.context.copy()
+        context.update({
+            'headers': self.headers
+        })
+        return self.render('panels/headers.html', context)
diff --git a/flaskext/debugtoolbar/templates/panels/headers.html b/flaskext/debugtoolbar/templates/panels/headers.html
new file mode 100644
index 0000000..91e2e0c
--- /dev/null
+++ b/flaskext/debugtoolbar/templates/panels/headers.html
@@ -0,0 +1,16 @@
+<table>
+	<thead>
+		<tr>
+			<th>Key</th>
+			<th>Value</th>
+		</tr>
+	</thead>
+	<tbody>
+		{% for key, value in headers.iteritems() %}
+			<tr class="{{ loop.cycle('djDebugOdd' 'djDebugEven') }}">
+				<td>{{ key|escape }}</td>
+				<td>{{ value|escape }}</td>
+			</tr>
+		{% endfor %}
+	</tbody>
+</table>
diff --git a/flaskext/debugtoolbar/toolbar.py b/flaskext/debugtoolbar/toolbar.py
index 2349131..6ae0f07 100644
--- a/flaskext/debugtoolbar/toolbar.py
+++ b/flaskext/debugtoolbar/toolbar.py
@@ -12,6 +12,7 @@ class DebugToolbar(object):
 
         self.default_panels = [
             'flaskext.debugtoolbar.panels.timer.TimerDebugPanel',
+            'flaskext.debugtoolbar.panels.headers.HeaderDebugPanel',
             'flaskext.debugtoolbar.panels.request_vars.RequestVarsDebugPanel',
             'flaskext.debugtoolbar.panels.logger.LoggingPanel',
         ]