def crawl(self):
#start crawling
#myopener = MyOpener()
self.harvestRatioData = []
self.relevantPages = []
while self.pagesCount < self.pagesLimit and not self.priorityQueue.isempty(
):
work_url = self.priorityQueue.pop()
self.visited.append(work_url[1])
#print ("%s, %s") % (-1 * work_url[0], work_url[1])
#page = urllib2.urlopen(work_url)
'''page = myopener.open(work_url)
self.pagesCount += 1
soup = BeautifulSoup(page)
links = soup.find_all('a')'''
page = Webpage(work_url, self.pagesCount)
if len(page.text) > 0:
page_score = self.scorer.calculate_score(page.text)
else:
page_score = 0
self.pagesCount += 1
if (page_score > self.pageScoreThreshold):
page.getUrls()
self.relevantPagesCount += 1
self.relevantPages.append(page)
self.harvestRatioData.append(
(self.relevantPagesCount, self.pagesCount))
print("%s," + str(page_score) + ", %s") % (-1 * work_url[0],
work_url[1])
for link in page.outgoingUrls:
url = link.address
if url != None and url != '':
if url.find('?') != -1:
url = url.split('?')[0]
if url.find('#') != -1:
url = url.split('#')[0]
# if url.startswith('http') == False:
# parts = page.pageUrl[1].split("://")
# baseUrl = parts[1].split("/")[0]
# baseUrl = parts[0] +"://" + baseUrl
# url = baseUrl + url
#if not self.existsInVisited(url,self.visited):
if url not in self.visited:
#if url.startswith('http:') and url.find('#') == -1 and not self.exists(url,self.priorityQueue.queue):
if url.startswith('http') and not self.exists(
url, self.priorityQueue.queue):
url_score = self.scorer.calculate_score(
link.getAllText())
self.totalPagesCount += 1
#tot_score = (page_score + url_score)/2.0
#tot_score = page_score + url_score
tot_score = url_score
if tot_score > self.urlScoreThreshold:
#self.priorityQueue.push(((-1 * url_score),url))
self.priorityQueue.push(
((-1 * tot_score), url, page.pageId))
def crawl(self):
self.harvestRatioData = []
self.relevantPages = []
while self.pagesCount < self.pagesLimit and not self.priorityQueue.isempty():
work_url = self.priorityQueue.pop()
self.visited.append(work_url)
page = Webpage(work_url,self.pagesCount)
if page.text =='' :
continue
page_score = 0.0
if self.combineScore:
if len(page.text) > 0:
page_score = self.scorer.calculate_score(page.text,'W')
else:
continue
page.estimatedScore = page_score
if self.restricted:
if page_score < self.pageScoreThreshold:
continue
#print -1 * work_url[0],",", str(page_score),",",work_url[1],",", work_url[3]
print -1 * work_url[0],",",work_url[1],",", work_url[3]
self.pagesCount += 1
page.getUrls()
self.relevantPages.append(page)
for link in page.outgoingUrls:
url = link.address
if url != None and url != '':
url = url.strip()
if url.find('?')!= -1:
url = url.split('?')[0]
if url.find('#') != -1:
url = url.split('#')[0]
if url.endswith(("comment","comment/","feed","comments","feed/","comments/",".rss","video","video/","link","gif","jpeg","mp4","wav","jpg","mp3","png","share.php","sharer.php","login.php","print","print/","button/","share","email","submit","post",".pdf") ):
continue
if not self.exists(url,1):
#tot_score = 0.0
if url.startswith('http') and not self.exists(url,2):
if self.mode == 1:
url_score = self.scorer.calculate_score(link.getAllText(),'U')
if self.combineScore:
tot_score= 0.5 *page_score + 0.5 *url_score
else:
tot_score = url_score
#if tot_score >= self.urlScoreThreshold:
self.priorityQueue.push(((-1 * tot_score),url,page.pageId,link.getAllText()))
#else:
# self.priorityQueue.push(((-1 * page_score),url,page.pageId,link.getAllText()))
#else:
# self.pages.append((page,0))
print self.priorityQueue.isempty()
def crawl(self):
#start crawling
#myopener = MyOpener()
self.harvestRatioData = []
self.relevantPages = []
while self.pagesCount < self.pagesLimit and not self.priorityQueue.isempty():
work_url = self.priorityQueue.pop()
self.visited.append(work_url[1])
#print ("%s, %s") % (-1 * work_url[0], work_url[1])
#page = urllib2.urlopen(work_url)
'''page = myopener.open(work_url)
self.pagesCount += 1
soup = BeautifulSoup(page)
links = soup.find_all('a')'''
page = Webpage(work_url,self.pagesCount)
if len(page.text) > 0:
page_score = self.scorer.calculate_score(page.text)
else:
page_score = 0
self.pagesCount += 1
if (page_score > self.pageScoreThreshold):
page.getUrls()
self.relevantPagesCount += 1
self.relevantPages.append(page)
self.harvestRatioData.append((self.relevantPagesCount,self.pagesCount))
print ("%s,"+ str(page_score)+", %s") % (-1 * work_url[0], work_url[1])
for link in page.outgoingUrls:
url = link.address
if url != None and url != '':
if url.find('?')!= -1:
url = url.split('?')[0]
if url.find('#') != -1:
url = url.split('#')[0]
# if url.startswith('http') == False:
# parts = page.pageUrl[1].split("://")
# baseUrl = parts[1].split("/")[0]
# baseUrl = parts[0] +"://" + baseUrl
# url = baseUrl + url
#if not self.existsInVisited(url,self.visited):
if url not in self.visited:
#if url.startswith('http:') and url.find('#') == -1 and not self.exists(url,self.priorityQueue.queue):
if url.startswith('http') and not self.exists(url,self.priorityQueue.queue):
url_score = self.scorer.calculate_score(link.getAllText())
self.totalPagesCount +=1
#tot_score = (page_score + url_score)/2.0
#tot_score = page_score + url_score
tot_score = url_score
if tot_score > self.urlScoreThreshold:
#self.priorityQueue.push(((-1 * url_score),url))
self.priorityQueue.push(((-1 * tot_score),url,page.pageId))
def crawl(self):
#start crawling
#myopener = MyOpener()
self.harvestRatioData = []
self.relevantPages = []
while self.pagesCount < self.pagesLimit and not self.priorityQueue.isempty(
):
work_url = self.priorityQueue.pop()
self.visited.append(work_url)
page = Webpage(work_url, self.pagesCount)
if len(page.text) > 0:
page_score = self.scorer.calculate_score(page.text)
else:
page_score = 0
self.pagesCount += 1
if (page_score > self.pageScoreThreshold):
page.getUrls()
self.relevantPagesCount += 1
self.relevantPages.append(page)
self.harvestRatioData.append(
(self.relevantPagesCount, self.pagesCount))
print("%s, %s") % (-1 * work_url[0], work_url[1])
for link in page.outgoingUrls:
url = link.address
if url != None and url != '':
#if url.find('?')!= -1:
# url = url.split('?')[0]
if url.startswith("/"):
base = page.pageUrl[1][7:].split("/")[0]
url = "http://" + base + url
if not self.exists(url, self.visited):
if url.startswith('http') and url.find(
'#'
) == -1 and not self.priorityQueue.exists(
url
): #self.exists(url,self.priorityQueue.queue):
url_score = self.scorer.calculate_score(
link.getAllText())
self.totalPagesCount += 1
#tot_score = (page_score + url_score)/2.0
#tot_score = page_score + url_score
tot_score = url_score
if tot_score > self.urlScoreThreshold:
#self.priorityQueue.push(((-1 * url_score),url))
self.priorityQueue.push(
((-1 * tot_score), url, page.pageId))
#self.relevantPagesCount += 1
self.priorityQueue.next()
def crawl(self):
#start crawling
#myopener = MyOpener()
self.harvestRatioData = []
self.relevantPages = []
while self.pagesCount < self.pagesLimit and not self.priorityQueue.isempty():
work_url = self.priorityQueue.pop()
self.visited.append(work_url)
page = Webpage(work_url,self.pagesCount)
if len(page.text) > 0:
page_score = self.scorer.calculate_score(page.text)
else:
page_score = 0
self.pagesCount += 1
if (page_score > self.pageScoreThreshold):
page.getUrls()
self.relevantPagesCount += 1
self.relevantPages.append(page)
self.harvestRatioData.append((self.relevantPagesCount,self.pagesCount))
print ("%s, %s") % (-1 * work_url[0], work_url[1])
for link in page.outgoingUrls:
url = link.address
if url != None and url != '':
#if url.find('?')!= -1:
# url = url.split('?')[0]
if url.startswith("/"):
base = page.pageUrl[1][7:].split("/")[0]
url = "http://" + base + url
if not self.exists(url,self.visited):
if url.startswith('http') and url.find('#') == -1 and not self.priorityQueue.exists(url):#self.exists(url,self.priorityQueue.queue):
url_score = self.scorer.calculate_score(link.getAllText())
self.totalPagesCount +=1
#tot_score = (page_score + url_score)/2.0
#tot_score = page_score + url_score
tot_score = url_score
if tot_score > self.urlScoreThreshold:
#self.priorityQueue.push(((-1 * url_score),url))
self.priorityQueue.push(((-1 * tot_score),url,page.pageId))
#self.relevantPagesCount += 1
self.priorityQueue.next()
def enhanced_crawl(self):
#start crawling
#myopener = MyOpener()
self.harvestRatioData = []
self.relevantPages = []
while self.pagesCount < self.pagesLimit and not self.priorityQueue.isempty():
work_url = self.priorityQueue.pop()
self.visited.append(work_url[1])
#print ("%s, %s") % (-1 * work_url[0], work_url[1])
#page = urllib2.urlopen(work_url)
'''page = myopener.open(work_url)
self.pagesCount += 1
soup = BeautifulSoup(page)
links = soup.find_all('a')'''
#print work_url[1]
try:
req = urllib2.Request(work_url[1])
# create a request object
handle = urllib2.urlopen(req)
# and open it to return a handle on the url
except urllib2.URLError, e:
# ignore error, URL timed out
pass
else:
html = handle.read()
soup = BeautifulSoup(html)
paras = soup.findAll('p')
#print paras
text = ""
for para in paras:
text = text + " " + para.text
page = Webpage(work_url,self.pagesCount)
if len(page.text) > 0:
page_score = self.scorer.calculate_smart_score(text, work_url[1])
else:
page_score = 0
self.pagesCount += 1
if (page_score > self.pageScoreThreshold):
page.getUrls()
self.relevantPagesCount += 1
self.relevantPages.append(page)
self.harvestRatioData.append((self.relevantPagesCount,self.pagesCount))
print ("%s|"+ str(page_score)+"|%s") % (-1.0 * work_url[0], work_url[1])
for link in page.outgoingUrls:
url = link.address
if url != None and url != '':
if url.find('?')!= -1:
url = url.split('?')[0]
if url.find('#') != -1:
url = url.split('#')[0]
# if url.startswith('http') == False:
# parts = page.pageUrl[1].split("://")
# baseUrl = parts[1].split("/")[0]
# baseUrl = parts[0] +"://" + baseUrl
# url = baseUrl + url
#if not self.existsInVisited(url,self.visited):
if url not in self.visited:
#if url.startswith('http:') and url.find('#') == -1 and not self.exists(url,self.priorityQueue.queue):
if url.startswith('http') and not self.exists(url,self.priorityQueue.queue):
url_score = self.url_scorer.calculate_score(link.getAllText())
self.totalPagesCount +=1
#tot_score = (page_score + url_score)/2.0
#tot_score = page_score + url_score
tot_score = url_score
if tot_score > self.urlScoreThreshold:
#self.priorityQueue.push(((-1 * url_score),url))
self.priorityQueue.push(((-1 * tot_score),url,page.pageId))
def crawl(self):
self.harvestRatioData = []
self.relevantPages = []
webpages = []
count = 0
ftext = open(self.pagesDir + "webpagesTxt.txt", "w")
webpageLabel = 0 # 0 for Non-relevant and 1 for Relevant
while self.pagesCount < self.pagesLimit and not self.priorityQueue.isempty(
):
work_url = self.priorityQueue.pop()
url = work_url[1]
#if self.exists(url,1):
# continue
if url in self.visited:
continue
#self.visited.append(url)#work_url[1])
self.visited[url] = 1
page = Webpage(work_url, self.pagesCount)
if page.text == '':
continue
page.estimatedScore = 0
if self.combineScore:
page_score = 0
if len(page.text) > 0:
#page_score = self.scorer.calculate_score(page.text,'W')[1]
page_score = self.scorer.calculate_score(page, 'W')[1]
if page_score == -1:
continue
else:
print 'page text is empty'
continue
page.estimatedScore = page_score
if self.restricted:
if page_score < self.pageScoreThreshold:
#self.pagesCount += 1
continue
pageDom = getDomain(url)
if page_score >= self.pageScoreThreshold:
self.sourcesImp[pageDom][0] += 1
webpageLabel = 1
else:
self.sourcesImp[pageDom][1] += 1
#self.sourcesImp[pageDom][0] = self.sourcesImp[pageDom][1]
webpageLabel = 0
if self.combineScore:
print page.pageId, ": ", str(
page_score), ",", -1 * work_url[0], ",", work_url[
1] #,",", work_url[3]
else:
print -1 * work_url[0], ",", work_url[1] #,",", work_url[3]
self.pagesCount += 1
#self.relevantPages.append((page.pageId,page.pageUrl,page.estimatedScore))
self.relevantPages.append(
(page.pageId, (page.pageUrl[1], page.pageUrl[2]),
page.estimatedScore))
wbsStr = page.text.replace('\n', '. ').replace('\t', ' ')
webpages.append(wbsStr)
count += 1
#save webpage's text to disk instead of adding to list
# this will lead to change in evaluation
if count % self.bufferLen == 0:
strToWrite = '\n'.join(webpages).encode("utf-8")
ftext.write(strToWrite)
webpages = []
#ftext = open(self.pagesDir+str(page.pageId) + ".txt", "w")
#ftext.write(page.text.encode("utf-8"))
#ftext.close()
#-------
if page_score < 0.1:
continue
page.getUrls()
for link in page.outgoingUrls:
url = link.address
#if url != None and url != '':
if url:
url = url.strip()
if url.find('report-a-typo') != -1:
continue
if url.find('m.tempo.co/') != -1:
continue
if url.find('?') != -1:
furl = url.split('?')[1]
if furl.startswith('id=') == False or furl.startswith(
'v=') == False or furl.startswith(
'tid=') == False:
url = url.split('?')[0]
if url.find('#') != -1:
url = url.split('#')[0]
if url.endswith('/'):
url = url[:-1]
#if url.endswith(("comment","comment/","feed","comments","feed/","comments/",".rss","video","video/","link","gif","jpeg","mp4","wav","jpg","mp3","png","share.php","sharer.php","login.php","print","print/","button/","share","email","submit","post",".pdf") ):
if url.endswith(
("comment", "feed", "comments", ".rss", "video",
"link", "gif", "jpeg", "mp4", "wav", "jpg", "mp3",
"png", "share.php", "sharer.php", "login.php",
"print", "button", "share", "email", "submit", "post",
".pdf")):
continue
#if not self.exists(url,1):
if url in self.visited:
continue
#tot_score = 0.0
if url.startswith('http'): #and not self.exists(url,2):
linkText = link.getAllText()
#if self.mode == 1:
#url_score = self.scorer.calculate_score(linkText,'U')
url_score = self.scorer.calculate_score(link, 'U')
tot_score = url_score
if self.combineScore:
#tot_score= 0.4 *page_score + 0.6 *url_score
tot_score = page_score * url_score
if tot_score < self.urlScoreThreshold:
continue
urlDom = getDomain(url)
si_score = self.sourcesImp[urlDom][
0] / self.sourcesImp[urlDom][1]
if self.siScoreCombineMethod == 1:
if webpageLabel:
tot_score = tot_score * si_score
elif self.siScoreCombineMethod == 2:
tot_score = self.topicWeight * tot_score + self.siWeight * si_score
#tot_score = tot_score * si_score
#else:
# tot_score = url_score
#if tot_score >= self.urlScoreThreshold:
#print tot_score, '-', url, linkText
if self.restricted:
if tot_score < self.urlScoreThreshold:
continue
if tot_score >= self.urlScoreThreshold:
self.priorityQueue.push(
((-1 * tot_score), url,
page.pageId)) #,linkText))
#else:
# self.priorityQueue.push(((-1 * page_score),url,page.pageId,link.getAllText()))
#else:
# self.pages.append((page,0))
print self.priorityQueue.isempty()
if webpages:
strToWrite = '\n'.join(webpages).encode("utf-8")
ftext.write(strToWrite)
ftext.close()
return self.priorityQueue.queue
