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crawl_comment.py
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crawl_comment.py
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import urllib,urllib2
import json
import requests
import datetime
#from pprint import pprint
import os
import sys
def url2json (url):
try:
request = urllib2.Request(url)
request.add_header( "User-Agent",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36")
respond = urllib2.urlopen(request)
contents = json.loads(respond.read())
# self.page_len = len(self.contents['data']['children'])
# self.after = self.contents['data']['after']
return contents
except urllib2.HTTPError, e:
if '404' in str(e) or '403' in str(e):
return -1
print "urllib2.HTTPError: %s caused error. Try again." % url
return url2json(url)
class RedditComment:
"""
< Reddit Articles Comments>
Usage:
obj = RedditComment('https://www.reddit.com/r/Patriots/comments/1clnp4/posting_here_hoping_it_might_gain_traction/.json')
obj.url2json(obj.next_url)
obj.get_content(0, obj.page_len)
obj.next_page()
obj.get_content(0, obj.page_len)
obj.next_page()
obj.writeJSON('reddit_jokes_output.json')
----------------------------------------------------
"""
def __init__ (self, url):
"""
x = RedditComment('https://www.reddit.com/r/AskReddit/comments/4ue58r/.json')
Init: dic, url, subreddit, a_id, key_list, comm_list
[*] dic = {
....,
'articles' : {
"$username_1" : {
"$article_id_1" : { 'title' , 'link_flair_text' , 'score' , 'ups' ,
'created_utc' , 'edited' , 'num_comments' , 'selftext' , 'preview' ,
'media' , 'over_18' , 'domain' , 'subreddit' , 'url' , 'name' ,
'comments' : {
'$comment_name_1': {
'level' : '2',
'author' : Amy,
'parent_id' : 't1_tt776',
....
},
'$comment_name_2': {
'level' : '1',
'author' : Judy,
'parent_id' : 't1_tt87j',
....
},...
}
},...
},...
}
}
"""
"""
Content: content[0]
Comments: content[1]
>> contents[1]['data']['children'][0]['data'].keys():
[u'subreddit_id', u'banned_by', u'removal_reason', u'link_id', u'likes', u'replies', u'user_reports', u'saved', u'id', u'gilded', u'archived', u'report_reasons', u'author', u'parent_id', u'score', u'approved_by', u'controversiality', u'body', u'edited', u'author_flair_css_class', u'downs', u'body_html', u'subreddit', u'name', u'score_hidden', u'stickied', u'created', u'author_flair_text', u'created_utc', u'distinguished', u'mod_reports', u'num_reports', u'ups']
"""
if urlparse(url).path.split('/')[-1] != ".json":
url = url + ".json"
self.subreddit = urlparse(url).path.split('/')[2]
self.a_id = urlparse(url).path.split('/')[4]
# self.domain = domain
# self.a_count = 0
# self.next_count = count
# self.next_name = name
# self.next_url = self.domain + ".json?count=" + str(self.next_count) + "&after=" + self.next_name
self.dic = {'articles':{}}
self.key_list = ['title', 'link_flair_text', 'score', 'ups', 'created_utc', 'edited', 'num_comments', 'selftext', 'preview',
'media', 'over_18', 'domain', 'subreddit', 'url', 'name']
self.comm_list = ['banned_by', 'removal_reason', 'link_id', 'likes', 'user_reports', 'gilded', 'archived', 'report_reasons', 'author',
'parent_id', 'score', 'approved_by', 'controversiality', 'body', 'edited', 'downs', 'subreddit', 'name',
'score_hidden', 'stickied', 'created', 'created_utc', 'distinguished', 'mod_reports', 'num_reports', 'ups']
def url2json (self, url):
"""
x.url2json(url) -- return json_content
"""
request = urllib2.Request(url)
request.add_header( "User-Agent",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36")
respond = urllib2.urlopen(request)
self.contents = json.loads(respond.read())
self.comment_count = len(self.contents[1]['data']['children'])
self.subreddit = urlparse(url).path.split('/')[2]
self.a_id = urlparse(url).path.split('/')[4]
return self.contents
def fetch (self):
dic = {'articles': {}}
try:
""" fetch content """
id, num = 0, 0
author = self.contents[id]['data']['children'][num]['data']['author']
a_id = self.contents[id]['data']['children'][num]['data']['id']
dic['articles'][author] = {}
dic['articles'][author][a_id] = {}
for k in self.key_list:
if self.contents[id]['data']['children'][num]['data'].has_key(k) is True:
dic['articles'][author][a_id][k] = self.contents[id]['data']['children'][num]['data'][k]
else:
dic['articles'][author][a_id][k] = None
""" fetch comments """
id, level = 1, 0
for comm in range(0,self.comment_count):
c_name = self.contents[id]['data']['children'][comm]['data']['name']
self.update(dic['articles'])
except IndexError:
print "Failed: `%s is empty." % self.url
return -1
def fetch_comment (self, level, dic):
level += 1
num += 1
reply = {}
for num in range(0, len(dic['data']['replies']['data']['children'])):
c_name = dic['data']['replies']['data']['children'][num]['data']['name']
if reply.has_key(c_name) is False:
reply[c_name] = {}
for item in comm_list:
reply[c_name][item] = dic['data']['replies']['data']['children'][num]['data'][item]
reply[c_name]['level'] = level
def get_content (self, id):
"""
x.get_content(0) # return content
x.get_content(1) # return comments
-- return json_content or json_comments, and store into x.dic
"""
if id == 0:
dic = {}
for num in range(start, end):
try:
author = self.contents['data']['children'][num]['data']['author']
a_id = self.contents['data']['children'][num]['data']['id']
dic[author] = {}
dic[author][a_id] = {}
for k in self.key_list:
if self.contents['data']['children'][num]['data'].has_key(k) is True:
dic[author][a_id][k] = self.contents['data']['children'][num]['data'][k]
else:
dic[author][a_id][k] = None
self.a_count += 1
except IndexError:
print "Failed: `%s is empty." % self.url
return -1
self.update(dic)
return dic
def list_authors (self):
"""
x.list_authors() -- list all authors in RedditObj
"""
return self.dic['articles'].keys()
def list_article_id (self, author):
"""
x.list_article_id($author) -- list all `article_id` of $author in RedditObj
"""
return self.dic['articles'][author].keys()
def list_attr (self):
"""
x.list_attr() -- list all attributes(keys) in RedditObj.dic['artciles']
"""
return self.key_list
def get_attr (self, author, a_id, attr):
"""
x.get_attr($author, $a_id, $attr) -- return the value in RedditObj.dic['articles'][$author][$a_id][$attr]
"""
return self.dic['articles'][author][a_id][attr]
def writeJSON (self, filename="reddit.json", dic={}):
"""
x.writeJSON($filename) -- write RedditObj in the file
"""
self.dic['next_count'] = self.next_count
self.dic['next_name'] = self.next_name
self.dic['next_url'] = self.domain + ".json?count=" + str(article.next_count) + "&after=" + self.next_name
if dic=={}:
dic = self.dic
with open(filename, 'w') as outfile:
json.dump(dic, outfile, ensure_ascii=True)
outfile.close()
def readJSON(self, filename="reddit.json"):
"""
x.readJSON($filename) -- read the file into RedditObj
"""
with open(filename, 'r') as infile:
self.dic = json.loads(infile.read())
self.domain = self.dic['domain']
self.next_count = self.dic['next_count']
self.next_name = self.dic['next_name']
self.next_url = self.dic['next_url']
infile.close()
return self.dic
def update (self, new_dic):
"""
x.update($new_dic['articles']) -- update this RedditObj articles information
if new_dic = {'articles':
'$author1': { '$a_id11':..., '$a_id12':... },
'$author2': {....}, ...
}
"""
for author in new_dic.keys():
if self.dic['articles'].has_key(author) == False:
self.dic['articles'][author] = {}
self.dic['articles'][author].update(new_dic[author])
class RedditUser:
"""
< Reddit Users Object >
Usage:
obj = RedditUser(username)
obj.url2json(obj.next_url)
obj.get_content(0, obj.page_len)
obj.next_page()
obj.get_content(0, obj.page_len)
obj.next_page()
obj.writeJSON('reddit_user_output.json')
"""
def __init__ (self, user=''):
self.user = user
self.domain = 'https://www.reddit.com/user/'
self.url = self.domain + user + '/submitted/.json'
self.a_count = 0
self.next_count = 0
self.next_name = ''
self.next_url = self.domain + user + '/submitted/.json?after=' + self.next_name
self.dic = {'domain':'USER', 'next_count':self.next_count, 'next_name':self.next_name, 'next_url':self.next_url, 'articles':{}}
self.key_list = ['title', 'link_flair_text', 'score', 'ups', 'created_utc', 'edited', 'num_comments', 'selftext', 'preview',
'media', 'over_18', 'domain', 'subreddit', 'url', 'name']
""" [EX] 'subreddit' : nosleep / jokes / NoSleepOOC, ..... """
def url2json (self, url):
try:
self.url = url
request = urllib2.Request(url)
request.add_header( "User-Agent",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36")
respond = urllib2.urlopen(request)
self.contents = json.loads(respond.read())
self.page_len = len(self.contents['data']['children'])
self.after = self.contents['data']['after']
return self.contents
except urllib2.HTTPError:
print "urllib2.HTTPError: %s caused error. Try again." % url
return self.url2json(url)
def next_page (self):
self.next_count = self.next_count + 25
try:
name = self.after
url = self.domain + self.user + "/submitted/.json?after=" + name
except TypeError:
return -1
self.next_name = name
self.next_url = url
return self.next_url
def get_content (self, start=0, end=0):
if end == 0:
end = start + 1
elif end > self.page_len or end <= start:
print "Error: start < `end' <= count"
return -1
dic = {}
#print "start: " + str(start)
#print "end: " + str(end)
for num in range(start, end):
try:
author = self.contents['data']['children'][num]['data']['author']
a_id = self.contents['data']['children'][num]['data']['id']
dic[author] = {}
dic[author][a_id] = {}
for k in self.key_list:
if self.contents['data']['children'][num]['data'].has_key(k) is True:
dic[author][a_id][k] = self.contents['data']['children'][num]['data'][k]
else:
dic[author][a_id][k] = None
#print dic
self.a_count += 1
except IndexError:
print "Failed: `%s is empty." % self.url
return -1
self.update(dic)
return dic
def get_authors (self):
return self.dic['articles'].keys()
def get_article_id (self, author):
return self.dic['articles'][author].keys()
def list_attr (self):
return self.key_list
def get_attr (self, author, a_id, attr):
return self.dic[author][a_id][attr]
def writeJSON (self, filename="reddit_user.json", dic={}):
self.dic['next_count'] = self.next_count
self.dic['next_name'] = self.next_name
self.dic['next_url'] = self.domain + self.user + "/submitted/.json?after=" + self.next_name
if dic=={}:
dic = self.dic
with open(filename, 'w') as outfile:
json.dump(dic, outfile, ensure_ascii=True)
outfile.close()
def readJSON (self, filename="reddit_user.json"):
with open(filename, 'r') as infile:
self.dic = json.loads(infile.read())
self.domain = self.dic['domain']
self.next_count = self.dic['next_count']
self.next_name = self.dic['next_name']
self.next_url = self.dic['next_url']
infile.close()
return self.dic
def update (self, new_dic):
if new_dic.has_key('articles') is True:
print "Failed: `new_dic should NOT have the key 'articles'."
print " > That is: `new_dic = { '$author_1': ..., '$author_2', ... }"
return -1
for author in new_dic.keys():
if self.dic['articles'].has_key(author) is False:
self.dic['articles'][author] = {}
self.dic['articles'][author].update(new_dic[author])
if __name__ == '__main__':
year = datetime.date.today().timetuple()[0]
month = datetime.date.today().timetuple()[1]
day = datetime.date.today().timetuple()[2]
week = datetime.date.today().isoweekday()
calendar_week = datetime.date.today().isocalendar()[1]
program = sys.argv[0]
domain = sys.argv[1]
#pages = sys.argv[2]
filename = os.path.join('data', "reddit_%s_%02d%02d.json" % (domain.split('/')[4], month, day))
filename_sum = os.path.join('data', "reddit_%s_sum.json" % (domain.split('/')[4]))
if os.path.isdir('data') is False:
os.makedirs('data')
article = RedditObj(domain, 0, '')
nurl = 0
while nurl != -1:
article.url2json(article.next_url)
article.get_content(0,article.page_len)
nurl = article.next_page()
print nurl
else:
print "total: " + str(article.next_count)
if os.path.exists(filename) is True:
article_old = RedditObj()
article_old.readJSON(filename)
article_old.update(article.dic['articles'])
article.dic['articles'] = article_old.dic['articles']
article.writeJSON(filename)
if os.path.exists(filename_sum) is True:
article_old = RedditObj()
article_old.readJSON(filename_sum)
article_old.update(article.dic['articles'])
article.dic['articles'] = article_old.dic['articles']
article.writeJSON(filename_sum)
with open('reddit_users.txt', 'a') as f:
for user in article.get_authors():
f.write("%s\n" % user)
f.close()
""" ======DATA TYPE======
${number} = 2..26
data['data']['children'][${number}]['data'].keys:
1. title
2. link_flair_text (title class)
3. author
4. score
5. ups
6. created_utc
7. edited
8. num_comments
9. selftext
10. media (influence score?)
11. over_18 (influence score?)
12. domain: (self.nosleep)
13. subreddit: (no sleep)
14. id
15. url (not really needs, since url="reddit/r/nosleep/${id}")
16. name ( ${kind}_${id}, ex: t3_5f8wjj )
17. preview (not each subreddit has)
contest_mode
banned_by
selftext_html
likes
suggested_sort
user_reports
secure_media
saved
media_embed
gilded
secure_media_embed
clicked
report_reasons
approved_by
hidden
thumbnail
subreddit_id
link_flair_css_class
author_flair_css_class
downs
archived
removal_reason
stickied
is_self
hide_score
spoiler
permalink
locked
created
author_flair_text
quarantine
mod_reports
visited
num_reports
distinguished
"""
"""
Get Comment
"""
#content_url=""
#request = urllib2.Request(content_url)
#request.add_header( "User-Agent",
# "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36")
#respond = urllib2.urlopen(request)
#content = json.loads(respond.read())
### Content ####
#for key in content[0]['data']['children'][0]['data']:
# print "%s:\t%s"%(key,content[0]['data']['children'][0]['data'][key])
### Comments ###
#for key in content[1]['data']['children'][0..last]['data']:
# print "%s:\t%s"%(key,content[1]['data']['children'][0..last]['data'][key])