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leetcode.py
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# coding:utf-8
import re
import json
import os
import threading
import time
import requests
from requests.exceptions import RequestException
from bs4 import BeautifulSoup
def get_proble_set(url):
try:
response = requests.get(url)
if response.status_code == 200:
return response.text
return None
except RequestException:
return None
def parse_proble_set(problemSet):
# print(len(problemSet)) # 2218
for i in range(len(problemSet)):
# for i in range(930, len(problemSet)):
title = problemSet[i]["stat"]["question__title_slug"]
if os.path.exists("originData/[no content]{}.json".format(title)) or os.path.exists("originData/{}.json".format(title)):
print(i, "has been parsed.")
# print("The question has been parsed: {}".format(title))
continue
#construct_url(title)
# time.sleep(0.5)
time.sleep(1)
t =threading.Thread(target=construct_url,args=(title,))
t.start()
print(i, "is done.")
continue
def construct_url(problemTitle):
url = "https://leetcode.com/problems/"+ problemTitle + "/description/"
# print(url)
get_proble_content(url,problemTitle)
def save_problem(title,content):
#content = bytes(content,encoding = 'utf8')
filename = title + ".html"
with open(filename,'w+',encoding="utf-8")as f:
f.write(content)
def get_proble_content(problemUrl,title):
response = requests.get(problemUrl)
setCookie = response.headers["Set-Cookie"]
'''
print(setCookie)
setCookie = json.loads(setCookie)
print(type(setCookie))
'''
try:
pattern = re.compile("csrftoken=(.*?);.*?",re.S)
csrftoken = re.search(pattern, setCookie)
url = "https://leetcode.com/graphql"
data = {
#"operationName":"getQuestionDetail",
"operationName":"questionData",
"variables":{"titleSlug":title},
# "query":"query getQuestionDetail($titleSlug: String!) {\n isCurrentUserAuthenticated\n question(titleSlug: $titleSlug) {\n questionId\n questionFrontendId\n questionTitle\n translatedTitle\n questionTitleSlug\n content\n translatedContent\n difficulty\n stats\n allowDiscuss\n contributors\n similarQuestions\n mysqlSchemas\n randomQuestionUrl\n sessionId\n categoryTitle\n submitUrl\n interpretUrl\n codeDefinition\n sampleTestCase\n enableTestMode\n metaData\n enableRunCode\n enableSubmit\n judgerAvailable\n infoVerified\n envInfo\n urlManager\n article\n questionDetailUrl\n libraryUrl\n companyTags {\n name\n slug\n translatedName\n __typename\n }\n companyTagStats\n topicTags {\n name\n slug\n translatedName\n __typename\n }\n __typename\n }\n interviewed {\n interviewedUrl\n companies {\n id\n name\n slug\n __typename\n }\n timeOptions {\n id\n name\n __typename\n }\n stageOptions {\n id\n name\n __typename\n }\n __typename\n }\n subscribeUrl\n isPremium\n loginUrl\n}\n"
"query": "query questionData($titleSlug: String!) {\n question(titleSlug: $titleSlug) {\n questionId\n questionFrontendId\n boundTopicId\n title\n titleSlug\n content\n translatedTitle\n translatedContent\n isPaidOnly\n difficulty\n likes\n dislikes\n isLiked\n similarQuestions\n exampleTestcases\n categoryTitle\n contributors {\n username\n profileUrl\n avatarUrl\n __typename\n }\n topicTags {\n name\n slug\n translatedName\n __typename\n }\n companyTagStats\n codeSnippets {\n lang\n langSlug\n code\n __typename\n }\n stats\n hints\n solution {\n id\n canSeeDetail\n paidOnly\n hasVideoSolution\n paidOnlyVideo\n __typename\n }\n status\n sampleTestCase\n metaData\n judgerAvailable\n judgeType\n mysqlSchemas\n enableRunCode\n enableTestMode\n enableDebugger\n envInfo\n libraryUrl\n adminUrl\n challengeQuestion {\n id\n date\n incompleteChallengeCount\n streakCount\n type\n __typename\n }\n __typename\n }\n}\n"
}
headers = {
'x-csrftoken': csrftoken.group(1),
'referer':problemUrl,
'content-type':'application/json',
'origin':'https://leetcode.com',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36'
}
cookies = {
'__cfduid':'d9ce37537c705e759f6bea15fffc9c58b1525271602',
'_ga':'GA1.2.5783653.1525271604',
'_gid':'GA1.2.344320119.1533189808',
'csrftoken':csrftoken.group(1),
' _gat':'1'
}
#payload表单为json格式
dumpJsonData = json.dumps(data)
response = requests.post(url,data = dumpJsonData, headers = headers,cookies = cookies)
dictInfo = json.loads(response.text)
if dictInfo["data"]["question"].get("content") is not None:
saveJSON(dictInfo, "originData/" + title + ".json")
content = dictInfo["data"]["question"]["content"]
save_problem("problem/" + title, content)
# soup = BeautifulSoup(content, 'lxml')
# save_problem(title,soup.prettify())
else:
saveJSON(dictInfo, "originData/[no content]" + title + ".json")
# print("no content")
except Exception as e:
print("[error] ", e, problemUrl)
def saveJSON(data, filename):
with open(filename, 'w', encoding='utf-8') as f:
json.dump(data, f, ensure_ascii=False, indent=4)
def main():
url = "https://leetcode.com/api/problems/all/"
html = json.loads(get_proble_set(url))
saveJSON(html, "origin-data.json")
# html = json.load(open("origin-data.json", 'r', encoding='utf-8'))
problemset = html["stat_status_pairs"]
parse_proble_set(problemset)
if __name__=='__main__':
folderName = "leetcode"
if not os.path.exists(folderName):
os.mkdir(folderName)
if not os.path.exists(folderName + "/originData"):
os.mkdir(folderName + "/originData")
if not os.path.exists(folderName + "/problem"):
os.mkdir(folderName + "/problem")
os.chdir(folderName)
main()