def __init__(self):
self.json_docs = []
self.db = WikiaDB()
self.downloaded_already = 0
self.downloaded_since_email = 0
class WikiaScraper:
def __init__(self):
self.json_docs = []
self.db = WikiaDB()
self.downloaded_already = 0
self.downloaded_since_email = 0
def scrapeIndex(self):
self.scrapePage("http://wiki-stats.wikia.com/",0)
@staticmethod
def fetchPage(url,nth = 0):
try:
retval = urllib2.urlopen(url)
except BadStatusLine:
print "badStatusLine"
emailPaul("Bad status, waiting two minutes", "URL = " + url)
if nth == 0:
emailPaul("Bad status, waiting two minutes", "URL = " + url, sms=True)
sleep(60 * 2) #Wait two minutes
return fetchPage(url,nth = nth+1) #Try again
return retval
def scrapePage(self,url,wait_time):
if self.db.dirAlreadyVisited(url): return
# print "hitting page %s, sleeping %ss first\n" % (url,wait_time)
sleep(wait_time)
page = self.fetchPage(url)#urllib2.urlopen(url)
soup = BeautifulSoup(page)
#Check if this is an end page (that describes a wikia wiki, and contains a .json)
jsonFiles = [a.contents for a in filter(lambda x: x.contents[0][-5:] == ".json",soup("a"))]
if len(jsonFiles) == 1: #we're at an end page
(url,archive_name,timestamp,found_file) = self.scrapeJSON(url,jsonFiles[0][0].strip(" "))
json_files_txt = open("json_files.txt",'a')
if found_file:
file_size = soup.find(text=archive_name).findParent().findParent().findNext().findNext().findNext().findNext(text=True)
file_size = file_size.strip(" ")
else:
file_size = 0
json_files_txt.write("\n%s\t%s\t%s" % (url+archive_name,timestamp,file_size))
json_files_txt.close()
# print "time to check db for %s! " % (url+archive_name)
if self.db.fileNotArchivedOrOld(url+archive_name,timestamp):
# print "time to archive!"
wiki_name = url.split("/")[-2]
self.archiveFile(url+archive_name,wiki_name)
self.db.recordArchiveFile(wiki_name,url+archive_name,DOWNLOAD_FILES,timestamp,file_size)
self.downloaded_already += self.db.parseFilesizeString(file_size)
self.downloaded_since_email += self.db.parseFilesizeString(file_size)
if self.downloaded_since_email >= EMAIL_THRESHOLD:
self.downloaded_since_email = 0
# self.emailPaul(wiki_name)
self.emailPaul("downloaded %iK\n" % float(self.downloaded_already/1000), "Last downloaded: " + wiki_name)
self.json_docs = []
else:
contents = []
for link in soup('a'):
contents.append(link.contents)
new_sub_dirs = filter(lambda dir_str: dir_str[-1][-1] == '/',contents)
for sub_dir in new_sub_dirs:
self.scrapePage(url + sub_dir[0],increaseSleepTime(wait_time))
#Record that we've been here in the DB
self.db.recordDirAsScraped(url)
def scrapeJSON(self,url,filename):
# self.json_docs.append(url)
# print ("json file = %s" % (url+filename))
json_doc = self.fetchPage(url+filename).read()
#urllib2.urlopen(url + filename).read()
# print "json_doc = %s " % json_doc
json_data = json.read(json_doc)
#Try for the full archive first
if 'pages_full.xml.gz' in json_data:
archive_name = "pages_full.xml.gz"
#failing that, look for a "current" one
elif 'pages_current.xml.gz' in json_data:
archive_name = "pages_current.xml.gz"
#And finally, just try whichever one is first in the JSON
else:
if len(json_data.keys()) == 0:
#No data in this JSON doc
return (url, archive_name, "(no data found)", False)
first_file = json_data.keys()[0]
if 'timestamp' in json_data[first_tile]:
archive_name = first_file
else:
#Badly formed JSON
return (url, archive_name, "(no data found)", False)
return (url, archive_name, json_data[archive_name]['timestamp'], True)
# def emailPaul(self,last_download):
# SENDMAIL = "/usr/sbin/sendmail" # sendmail location
# p = os.popen("%s -t" % SENDMAIL, "w")
# p.write("To: [email protected]\n")
# p.write("Subject: downloaded %iK\n" % float(self.downloaded_already/1000))
# p.write("Last downloaded: %s\n" % last_download) # blank line separating headers from body
# sts = p.close()
# if sts != 0:
# pass
# # print "Sendmail exit status", sts
# # self.json_docs = []
def emailPaul(self,subject,message_body,sms=False):
SENDMAIL = "/usr/sbin/sendmail" # sendmail location
p = os.popen("%s -t" % SENDMAIL, "w")
if sms:
p.write("To: %[email protected]\n" % PAULS_PHONE_NUMBER)
else:
p.write("To: [email protected]\n")
p.write("Subject: %s\n" % subject)#downloaded %iK\n" % float(self.downloaded_already/1000))
p.write(message_body + "\n") #% last_download) # blank line separating headers from body
sts = p.close()
if sts != 0:
pass
def archiveFile(self,url,filename):
if DOWNLOAD_FILES:
# print "About to archive file %s" % url
os.system ("wget %s -O %s.xml.gz" % (url,DOWNLOAD_DIR + filename))
sleep(SLEEP_BETWEEN_DLS) #sleep 20 seconds
