config: Add maximum content size for source code highlighting

swh/web/browse/utils.py

@@ -19,6 +19,7 @@ from swh.web.common.exc import NotFoundExc
 from swh.web.common.utils import (
     reverse, format_utc_iso_date, parse_timestamp
 )
+from swh.web.config import get_config
 
 
 def get_directory_entries(sha1_git):
@@ -88,7 +89,7 @@ def get_mimetype_and_encoding_for_content(content):
 
 # maximum authorized content size in bytes for HTML display
 # with code highlighting
-content_display_max_size = 1000000
+content_display_max_size = get_config()['content_display_max_size']
 
 
 def request_content(query_string, max_size=content_display_max_size):

swh/web/config.py

@@ -29,6 +29,8 @@ DEFAULT_CONFIG = {
     'host': ('string', '127.0.0.1'),
     'port': ('int', 5004),
     'secret_key': ('string', 'development key'),
+    # do not display code highlighting for content > 1MB
+    'content_display_max_size': ('int', 1024 * 1024),
     'throttling': ('dict', {
         'cache_uri': None,  # production: memcached as cache (127.0.0.1:11211)
                             # development: in-memory cache so None

swh/web/templates/includes/content-display.html

 <div class="well well-sm swh-content" style="margin-bottom: 0px">
   {% if content_size > max_content_size %}
-    Content is too large to be displayed.
+    Content is too large to be displayed (size is greater than {{ max_content_size|filesizeformat }}).
   {% elif "inode/x-empty" == mimetype %}
     <i>File is empty</i>
   {% elif "text/" in mimetype %}

swh/web/tests/browse/views/test_content.py

@@ -262,5 +262,5 @@ class SwhBrowseContentTest(SWHWebTestBase, TestCase):
         self.assertEquals(resp.status_code, 200)
         self.assertTemplateUsed('content.html')
 
-        self.assertContains(resp, 'Content is too large to be displayed.')
+        self.assertContains(resp, 'Content is too large to be displayed')
         self.assertContains(resp, url_raw)