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pds-2021-g2-nest/nest_crawler/__main__.py

152 lines
8.2 KiB
Python

from nest_backend.app import app
from nest_backend.database import *
import tweepy as tw
from datetime import datetime
ext.init_app(app=app)
def authenticate():
c_k = "GEhtSyP9e98mzFeiOCSW0lvQX"
c_s = "438cmYrl5xqaX2W7I2Bf5A9nF1pN5VtM9f77WYQnAXg1BwKJ27"
a_t = "1380217745732689921-8gCfr8Zx9YHKvo4OVP3HAr3kfMRkgz"
a_t_s = "jGOlgTs1i1itGMxDxAqFEDnv7QAui772n9hGxeSIKcwzS"
auth = tw.OAuthHandler(c_k, c_s)
auth.set_access_token(a_t, a_t_s)
api = tw.API(auth, wait_on_rate_limit=True)
# client = tw.Client(b_t, c_k, c_s, a_t, a_t_s, wait_on_rate_limit=True);
return api
def search_repo_conditions(repository_id):
api = authenticate()
geocode = "44.3591600,11.7132000,20km"
repo = Repository.query.filter_by(id=repository_id).first()
if repo is None:
print("Non esiste una repository con questo id")
return False
conditions = [use for use in repo.conditions]
evaluation_mode = repo.evaluation_mode
conditions_type = dict()
# Dividing condition into condition types
for condition in conditions:
# print(condition.id)
if condition.type not in conditions_type.keys():
conditions_type[condition.type] = [condition]
else:
conditions_type[condition.type].append(condition)
queryString = ""
queryConjunction = "OR" if (evaluation_mode == ConditionMode.all_or) else ""
tweetsFound = []
for types in conditions_type.keys():
print(types, ":", conditions_type[types])
coordinates_string = ""
if ConditionType.hashtag in conditions_type.keys():
for condition_content in conditions_type[ConditionType.hashtag]:
queryString += ("#" + condition_content.content + " " + queryConjunction + " ")
if ConditionType.coordinates in conditions_type.keys():
if evaluation_mode == ConditionMode.all_and:
if len(conditions_type[ConditionType.coordinates]) == 1:
coordinates_tweet = conditions_type[ConditionType.coordinates][0].split()
coordinates_string = coordinates_tweet[2] + "," + coordinates_tweet[3] + "," + str(float(coordinates_tweet[1])/1000) + "km"
else:
return None
elif evaluation_mode == ConditionMode.all_or:
for condition_content in conditions_type[ConditionType.coordinates]:
coordinates_tweet = condition_content.content.split()
coordinates_string = coordinates_tweet[2] + "," + coordinates_tweet[3] + "," + str(float(coordinates_tweet[1])/1000) + "km"
print(coordinates_string)
for tweet in tw.Cursor(method=api.search, q="", geocode=coordinates_string).items(10):
if not Tweet.query.filter_by(snowflake=str(tweet.id)).all():
tweetDB = Tweet(snowflake=tweet.id, content=tweet.text,
location=tweet.geo['coordinates'] if tweet.geo is not None else None,
place=tweet.place.full_name if tweet.place is not None else None,
insert_time=str(datetime.now()),
poster=tweet.author.screen_name)
ext.session.add(tweetDB)
ext.session.commit()
if not Contains.query.filter_by(snowflake=str(tweet.id), cid=condition_content.id).all():
condition_associated = Contains(cid=condition_content.id, snowflake=tweet.id)
ext.session.add(condition_associated)
ext.session.commit()
if not Composed.query.filter_by(snowflake=str(tweet.id), rid=repository_id).all():
composed = Composed(rid=repository_id, snowflake=tweet.id)
ext.session.add(composed)
ext.session.commit()
if ConditionType.user in conditions_type.keys():
for condition_content in conditions_type[ConditionType.user]:
queryString += ("from:" + condition_content.content + " " + queryConjunction + " ")
if ConditionType.time in conditions_type.keys():
for condition_content in conditions_type[ConditionType.time]:
if condition_content.content[0] == '<':
queryString += ("until:" + condition_content.content[2:] + " " + queryConjunction + " ")
elif condition_content.content[0] == '>':
queryString += ("since:" + condition_content.content[2:] + " " + queryConjunction + " ")
queryString = queryString[:-len(queryConjunction) - 1]
print(queryString)
if evaluation_mode == ConditionMode.all_or:
if queryString != "":
for tweet in tw.Cursor(method=api.search, q=queryString).items(10):
tweetsFound.append(tweet)
print(tweet.user.name + ' : ' + tweet.text + ' : ' + tweet.geo)
elif evaluation_mode == ConditionMode.all_and:
for tweet in tw.Cursor(method=api.search, q=queryString, geocode=coordinates_string).items(10):
tweetsFound.append(tweet)
print(tweet.user.name + ' : ' + tweet.text + ' : ' + str(tweet.geo))
for tweet in tweetsFound:
if not Tweet.query.filter_by(snowflake=str(tweet.id)).all():
tweetDB = Tweet(snowflake=tweet.id, content=tweet.text,
location=tweet.geo['coordinates'] if tweet.geo is not None else None,
place=tweet.place.full_name if tweet.place is not None else None,
insert_time=str(datetime.now()),
poster=tweet.author.screen_name)
ext.session.add(tweetDB)
ext.session.commit()
if evaluation_mode == ConditionMode.all_or:
if ConditionType.hashtag in conditions_type.keys():
for condition_content in conditions_type[ConditionType.hashtag]:
if condition_content.content in [hashtag['text'] for hashtag in tweet.entities['hashtags']]:
condition_associated = Contains(cid=condition_content.id, snowflake=tweet.id)
ext.session.add(condition_associated)
ext.session.commit()
if ConditionType.user in conditions_type.keys():
for condition_content in conditions_type[ConditionType.user]:
if condition_content.content == tweet.author.screen_name:
condition_associated = Contains(cid=condition_content.id, snowflake=tweet.id)
ext.session.add(condition_associated)
ext.session.commit()
if ConditionType.time in conditions_type.keys():
for condition_content in conditions_type[ConditionType.time]:
condition_date_time = datetime.fromisoformat(condition_content.content[2:])
if condition_content.content[0] == '<':
if tweet.created_at < condition_date_time:
condition_associated = Contains(cid=condition_content.id, snowflake=tweet.id)
ext.session.add(condition_associated)
ext.session.commit()
elif condition_content.content[0] == '>':
if tweet.created_at > condition_date_time:
condition_associated = Contains(cid=condition_content.id, snowflake=tweet.id)
ext.session.add(condition_associated)
ext.session.commit()
elif evaluation_mode == ConditionMode.all_and:
for condition in conditions:
if Contains.query.filter_by(snowflake=str(tweet.id), cid=condition.id).all():
condition_associated = Contains(cid=condition.id, snowflake=tweet.id)
ext.session.add(condition_associated)
ext.session.commit()
if not Composed.query.filter_by(snowflake=str(tweet.id), rid=repository_id).all():
composed = Composed(rid=repository_id, snowflake=tweet.id)
ext.session.add(composed)
ext.session.commit()
if __name__ == "__main__":
search_repo_conditions(16)
with app.app_context():
ext.create_all(app=app)