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reporter.py
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# reporter.py
# Reporter class
#
# Jiyong Jang, 2012
#
import time
from collections import defaultdict
import common
import patchloader
import sourceloader
class Reporter(object):
def __init__(self, patch, source):
self._patch_list = patch.items()
self._npatch = patch.length()
self._source_list = source.items()
self._nsource = source.length()
self._match_dict = source.match_items()
self._context_dict = defaultdict(list)
def _exact_match(self):
'''
Exact-matching test to catch Bloom filters errors
'''
print '[+] performing an exact matching test'
start_time = time.time()
exact_nmatch = 0
for patch_id, source_id_list in self._match_dict.items():
patch_norm_lines = self._patch_list[patch_id].norm_lines
patch_norm_length = len(patch_norm_lines)
for source_id in source_id_list:
source_norm_lines = self._source_list[source_id].norm_lines
source_norm_length = len(source_norm_lines)
for i in range(0, (source_norm_length-patch_norm_length+1)):
patch_line = 0
source_line = i
while patch_norm_lines[patch_line] == source_norm_lines[source_line]:
patch_line += 1
source_line += 1
if patch_line == patch_norm_length:
common.verbose_print(' [-] exact match - %s : %s (line #%d)' % (self._patch_list[patch_id].file_path, self._source_list[source_id].file_path, i+1))
self._context_dict[patch_id].append(common.ContextInfo(source_id, max(0, i-common.context_line), i, source_line, min(source_line+common.context_line, source_norm_length-1)))
exact_nmatch += 1
break
while source_line<source_norm_length-patch_norm_length and source_norm_lines[source_line]=='':
source_line += 1
if source_line == source_norm_length-patch_norm_length:
break
elapsed_time = time.time() - start_time
print '[+] %d exact matches ... %.1fs\n' % (exact_nmatch, elapsed_time)
return exact_nmatch
def _html_escape(self, string):
'''
Escape HTML
'''
return ''.join(common.html_escape_dict.get(c,c) for c in string)
def output(self, outfile='output.html'):
'''
Perform an exact matching test and generate a report
'''
exact_nmatch = self._exact_match()
if exact_nmatch == 0:
return exact_nmatch
print '[+] generating a report'
start_time = time.time()
out = open(outfile, 'w')
# html head - css, javascript
out.write("""
<!DOCTYPE html>
<html>
<head>
<title>ReDeBug - Report</title>
<style type="text/css">
.container { padding: 3px 3px 3px 3px; font-size: 14px; }
.patch { background-color: #CCCCCC; border: 2px solid #555555; margin: 0px 0px 5px 0px }
.source { background-color: #DDDDDD; padding: 3px 3px 3px 3px; margin: 0px 0px 5px 0px }
.filepath { font-size: small; font-weight: bold; color: #0000AA; padding: 5px 5px 5px 5px; }
.codechunk { font-family: monospace; font-size: small; white-space: pre-wrap; padding: 0px 0px 0px 50px; }
.linenumber { font-family: monospace; font-size: small; float: left; color: #777777; }
</style>
<script language="javascript">
function togglePrev(node) {
var targetDiv = node.previousSibling;
targetDiv.style.display = (targetDiv.style.display=='none')?'block':'none';
node.innerHTML = (node.innerHTML=='+ show +')?'- hide -':'+ show +';
}
function toggleNext(node) {
var targetDiv = node.nextSibling;
targetDiv.style.display = (targetDiv.style.display=='none')?'block':'none';
node.innerHTML = (node.innerHTML=='+ show +')?'- hide -':'+ show +';
}
</script>
</head>
<body>
<div style="width: 100%; margin: 0px auto">""")
# unpatched code clones
out.write("""
<b># <i>unpatched code clones:</i> <font style="color:red">%d</font></b>""" % exact_nmatch)
for patch_id, context_list in self._context_dict.items():
p = self._patch_list[patch_id]
out.write("""
<div class="container">
<br />""")
# patch info
out.write("""
<div class="patch">
<div class="filepath">%s</div>
<div class="codechunk">%s</div>
</div>""" % (p.file_path, p.orig_lines))
for context in context_list:
s = self._source_list[context.source_id]
# source info - prev_context
out.write("""
<div class="source">
<div class="filepath">%s</div>
<div style="display: none">
<div class="linenumber">""" % s.file_path)
for i in range(context.prev_context_line, context.start_line):
out.write("""
%d<br />""" % (i+1))
out.write("""
</div>
<div class="codechunk">%s</div>
</div><a href="javascript:;" onclick="togglePrev(this);">+ show +</a>""" % self._html_escape('\n'.join(s.orig_lines[context.prev_context_line:context.start_line])))
# source info
out.write("""
<div>
<div class="linenumber">""")
for i in range(context.start_line, context.end_line):
out.write("""
%d<br />""" % (i+1))
out.write("""
</div>
<div class="codechunk">%s</div>
</div>""" % self._html_escape('\n'.join(s.orig_lines[context.start_line:context.end_line])))
# source info - next_context
out.write("""
<a href="javascript:;" onclick="toggleNext(this);">+ show +</a><div style="display: none">
<div class="linenumber">""")
for i in range(context.end_line, context.next_context_line):
out.write("""
%d<br />""" % (i+1))
out.write("""
</div>
<div class="codechunk">%s</div>
</div>
</div>""" % self._html_escape('\n'.join(s.orig_lines[context.end_line:context.next_context_line])))
out.write("""
</div>""")
out.write("""
</div>
</body>
</html>""")
out.close()
elapsed_time = time.time() - start_time
print '[+] \"%s\" ... %.1fs\n' % (outfile, elapsed_time)
return exact_nmatch