def stopLoading(self):
try:
self.driver.execute_script("window.stop();")
self.driver.find_elements_by_css_selector("*")[0].send_keys(
Keys.CONTROL + 'Escape')
except Exception as e:
logError("Exception location: Browser.stopLoading()\n" + str(e),
self)
def noAjaxSleepThenCallback(self):
try:
self.html()
except Exception as e:
logError(
"Exception location: browser.noAjaxSleepThenCallback()\n" +
str(e), self)
self.tryRelease()
def ajaxSleepThenCallback(self):
self.doAjaxSleep()
try:
self.html()
except Exception as e:
logError(
"Exception location: browser.ajaxSleepThenCallback()\n" +
str(e), self)
# Here we terminated the sleep and the callback, so we can unlock the object:
self.tryRelease()
def checkProxy(self):
"""
This method return False if the proxy is not correctly set.
"""
if self.proxy is None:
logError("Proxy not correctly set.", self)
return False
else:
webSiteList = \
[
"http://fr.geoipview.com",
# On this web site with a proxy, the page load a lot of "near ip", so it's slow:
# "http://www.localiser-ip.com",
"http://www.mon-ip.com",
"https://www.expressvpn.com/what-is-my-ip",
"https://www.adresseip.com",
]
def getWebSiteIP(url):
try:
data = self.html(url)["html"]
ip = re.search("\d+[.]\d+[.]\d+[.]\d+", data).group(0)
return ip
except Exception as e:
# logWarning("Ip not found in " + url + " " + str(e), self)
return None
self.driver.set_page_load_timeout(self.checkProxyTimeout)
previousAjaxSleep = self.ajaxSleep
self.ajaxSleep = 0.0
ipWhithoutProxy = getIP()
success = False
# log("This computer ip is " + ipWhithoutProxy, self)
for current in webSiteList:
proxyIP = getWebSiteIP(current)
if proxyIP is not None:
if self.proxy["ip"] != proxyIP:
break
if proxyIP == ipWhithoutProxy:
break
success = True
break
self.ajaxSleep = previousAjaxSleep
self.driver.set_page_load_timeout(self.pageLoadTimeout)
if success:
log(
"Successfully init " + self.name + " with proxy " +
proxyIP, self)
return True
else:
logWarning(
self.name + " failed to use proxy " + self.proxy["ip"],
self)
return False
def initDriver(self, retry=True):
try:
self.driver = webdriver.PhantomJS(
self.phantomjsPath,
service_args=self.getPhantomJSServiceArgs())
self.driver.set_page_load_timeout(self.pageLoadTimeout)
except Exception as e:
if retry:
time.sleep(2)
self.initDriver(retry=False)
else:
logError("This driver can't be init: " + str(e), self)
def getDriverData(self):
lastUrl = None
title = None
html = None
try:
lastUrl = self.driver.current_url
title = self.driver.title.strip()
html = self.driver.page_source
except Exception as e:
logError("Exception location: browser.getDriverData()\n" + str(e),
self)
return (title, html, lastUrl)
def html(self, crawlingElement=None):
"""
This function return data. Call "get" method instead if you gave a htmlCallback.
"""
# We convert the url:
crawlingElement = tryUrlToCrawlingElement(crawlingElement)
try:
# Here it's the user who call this method:
if crawlingElement is not None:
ok = self.get(crawlingElement)
# Here if the htmlCallback is not None, it's the get method which call html():
elif self.htmlCallback is not None:
crawlingElement = self.currentCrawlingElement
ok = self.lastGetIsOk
else:
logError(
"You can't be in both scenarios described in the doc.",
self)
exit()
# No we try to get some data:
(title, html, lastUrl) = self.getDriverData()
# And we get the status:
status = self.getStatus(ok, crawlingElement, lastUrl, title, html)
# Now we got all data, so we can make the data dict:
data = \
{
"status": status,
"crawlingElement": crawlingElement,
"lastUrl": lastUrl,
"html": html, # theHtml[0:20]
"title": title,
}
# And we log informations:
ip = " "
if self.proxy is not None:
ip = " (" + self.proxy["ip"] + ") "
logInfo(
str(status.name) + " from " + self.name + ip +
str(crawlingElement.data), self)
if status == Browser.REQUEST_STATUS.duplicate:
logInfo(str(title), self)
except Exception as e:
logError("Exception location: browser.html()\n" + str(e), self)
data = \
{
"status": Browser.REQUEST_STATUS.exception,
"crawlingElement": crawlingElement,
"lastUrl": None,
"html": None,
"title": None,
}
# Now if we have a callback, we have to throw the data:
if self.htmlCallback is not None:
self.htmlCallback(data, self)
# Or we just return it:
else:
return data
return None
def loadBlank(self):
try:
self.driver.get("about:blank")
except Exception as e:
logError("Exception location: Browser.loadBlank()\n" + str(e),
self)
def get(self, crawlingElement, pipCallback=None):
"""
This function return True if the request succeeded.
"""
# We convert the url:
crawlingElement = tryUrlToCrawlingElement(crawlingElement)
# Here we have a callback, we have to cacheLock the object:
if self.htmlCallback is not None:
self.acquire()
try:
# And now we can get the html and retain time duration:
tt = TicToc()
tt.tic(display=False)
# logInfo("Launching get for: " + str(url))
if crawlingElement.type == CrawlingElement.TYPE.pipedMessage:
pipCallback(self,
crawlingElement) # Here the url is a piped message
else:
self.stopLoadingAndLoadBlank()
logInfo("Get starting...", self)
self.driver.get(crawlingElement.data)
logInfo("Get DONE", self)
# logInfo("get done for: " + str(url))
# global debugCount
# debugCount += 1
# We finally got something without exception, so we try to get data:
(title, html, lastUrl) = self.getDriverData()
# But here, if the status is not success, we set diffTime as the max:
diffTime = tt.tic(display=False)
if self.getStatus(True, crawlingElement, lastUrl, title,
html) != Browser.REQUEST_STATUS.success:
diffTime = self.pageLoadTimeout
# We add the score to the history:
self.durationHistory.append(diffTime)
# And we keep currentUrl and ok status for the "html()" method:
self.currentCrawlingElement = crawlingElement
self.lastGetIsOk = True
self.lastIsDuplicate = False
if title is not None and html is not None \
and crawlingElement.type == CrawlingElement.TYPE.uniqueUrl:
self.lastIsDuplicate = self.duplicates.isDuplicate \
(
crawlingElement.data,
title,
html,
self.maxDuplicatePerDomain
)
# Now we add the download page to duplicates structure:
Browser.duplicates.add \
(
crawlingElement.data,
title,
html,
)
# Finally we exec the finally statement and we return True (i.e. request ok):
return True
except Exception as e:
if not isinstance(e, TimeoutException):
logError("Exception location: browser.get()\n" + str(e), self)
# Here we got a timeout, so we set the score as the badest:
self.durationHistory.append(self.pageLoadTimeout)
# And we keep url and ok status for the "html()" method:
self.currentCrawlingElement = crawlingElement
self.lastGetIsOk = False
# Finally we exec the finally statement and we return False (i.e. failed):
return False
# The finally is executed before the return statement
finally:
# If the request succeeded:
if self.lastGetIsOk:
# First if this is a duplicates (i.e. a "you've been blocked" page for instance),
# we don't need to sleep but we call the callback to keep aware the crawler:
if self.lastIsDuplicate:
theThread = Thread(target=self.noAjaxSleepThenCallback)
theThread.start()
# Then if we don't have any callback, the caller of this funct is the
# "html()" method of this object, so we just need to sleep:
elif self.htmlCallback is None:
self.doAjaxSleep()
# Else if we actually have a right web page without timeout
# We sleep and we call the callback:
else:
theThread = Thread(target=self.ajaxSleepThenCallback)
theThread.start()
# If we got a timeout, we don't need to sleep:
else:
# If there are no callback, we don't do anything:
if self.htmlCallback is None:
pass
# Else we don't sleep but call the callback:
# Or we have to sleep because we can have a timeoutWithContent...
else:
theThread = Thread(target=self.noAjaxSleepThenCallback)
theThread.start()
def tryRelease(self):
try:
self.cacheLock.release()
except Exception as e:
logError("Exception location: browser.tryRelease()\n" + str(e),
self)
pass
verbose = False
try:
verbose = args.verbose
assert isinstance(verbose, bool)
except:
pass
sleepInterval = 10
try:
sleepInterval = args.sleep
assert sleepInterval > 0
assert sleepInterval < 10000
except:
pass
logger = Logger("oomwatcher.log")
while True:
time.sleep(10.0)
if getRandomFloat() > 0.95:
logInfo("getMemoryPercent() = " + str(getMemoryPercent()),
logger=logger)
logInfo("threshold = " + str(threshold), logger=logger)
if getMemoryPercent() > threshold:
try:
sh.bash(scriptPath
) # sh.bash("/home/hayj/taonews-logs/kill-taonews.sh")
logInfo("Script executed", logger=logger)
except Exception as e:
logError(str(e), logger=logger)