Merge pull request #418 from oduwsdl/issue-411

Handle no mementos condition, supplying 404 and search box. Closes #411

ipwb/replay.py

@@ -188,6 +188,9 @@ def showMementosForURIRs(urir):
             msg += ('<li><a href="/{1}/{0}">{0} at {2}</a></li>'
                     .format(unsurt(fields[0]), dt14, dtrfc1123))
         msg += '</ul>'
+    else:  # No captures for URI-R
+        msg = generateNoMementosInterface_noDatetime(urir)
+
     return Response(msg)
 
 
@@ -344,6 +347,7 @@ def showTimeMap(urir, format):
 def getLinkHeaderAbbreviatedTimeMap(urir, pivotDatetime):
     s = surt.surt(urir, path_strip_trailing_slash_unless_empty=False)
     indexPath = ipwbConfig.getIPWBReplayIndexPath()
+
     cdxjLinesWithURIR = getCDXJLinesWithURIR(urir, indexPath)
     hostAndPort = ipwbConfig.getIPWBReplayConfig()
 
@@ -672,9 +676,24 @@ def handler(signum, frame):
     return resp
 
 
+def generateNoMementosInterface_noDatetime(urir):
+    msg = '<h1>ERROR 404</h1>'
+    msg += 'No capture(s) found for {0}.'.format(urir)
+
+    msg += ('<form method="get" action="/memento/*/" '
+            'style="margin-top: 1.0em;">'
+            '<input type="text" value="{0}" id="url"'
+            'name="url" aria-label="Enter a URI" />'
+            '<input type="submit" value="Search URL in the archive"/>'
+            '</form>').format(urir)
+
+    return msg
+
+
 def generateNoMementosInterface(path, datetime):
     msg = '<h1>ERROR 404</h1>'
     msg += 'No capture found for {0} at {1}.'.format(path, datetime)
+
     linesWithSameURIR = getCDXJLinesWithURIR(path, None)
     print('CDXJ lines with URI-R at {0}'.format(path))
     print(linesWithSameURIR)