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Avoid race conditions where the page is edited while checking it.

tags/v0.1^2
Ben Kurtovic 12 年之前
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cf2101f922
共有 1 個文件被更改,包括 15 次插入5 次删除
  1. +15
    -5
      earwigbot/tasks/afc_copyvios.py

+ 15
- 5
earwigbot/tasks/afc_copyvios.py 查看文件

@@ -84,23 +84,32 @@ class AFCCopyvios(Task):
self.logger.info(u"Checking [[{0}]]".format(title))
result = page.copyvio_check(self.min_confidence, self.max_queries)
url = result.url
confidence = "{0}%".format(round(result.confidence * 100, 2))
orig_conf = "{0}%".format(round(result.confidence * 100, 2))

if result.violation:
# Things can change in the minute that it takes to do a check.
# Confirm that a violation still holds true:
page.load()
confirm = page.copyvio_compare(url, self.min_confidence)
new_conf = "{0}%".format(round(confirm.confidence * 100, 2))
if not confirm.violation:
msg = u"A violation was detected in [[{0}]], but couldn't be confirmed. It may have just been edited (best: {1} at {2} -> {3} confidence)"
self.logger.info(msg.format(title, url, orig_conf, new_conf))

safeurl = quote(url.encode("utf8"), safe="/:").decode("utf8")
content = page.get()
template = u"\{\{{0}|url={1}|confidence={2}\}\}\n"
template = template.format(self.template, safeurl, confidence)
template = template.format(self.template, safeurl, new_conf)
newtext = template + content
if "{url}" in self.summary:
page.edit(newtext, self.summary.format(url=url))
else:
page.edit(newtext, self.summary)
msg = u"Found violation: [[{0}]] -> {1} ({2} confidence)"
self.logger.info(msg.format(title, url, confidence))
self.logger.info(msg.format(title, url, new_conf))
else:
msg = u"No violations detected in [[{0}]] (best: {1} at {2} confidence)"
self.logger.info(msg.format(title, url, confidence))
self.logger.info(msg.format(title, url, orig_conf))

self.log_processed(pageid)
if self.cache_results:
@@ -150,4 +159,5 @@ class AFCCopyvios(Task):
cursor.execute(query1, (pageid,))
if cursor.fetchall():
cursor.execute(query2, (pageid,))
cursor.execute(query3, (pageid, hash, result.url, result.queries, 0))
args = (pageid, hash, result.url, result.queries, 0)
cursor.execute(query3, args)

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