/
app.py
executable file
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/
app.py
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from flask import Flask, render_template, url_for, redirect, request, jsonify
import db
import os.path
import markov
import time
import generator
from scrapers.twitter_scraper import TwitterScraper
from scrapers.reddit_scraper import RedditScraper
app = Flask(__name__)
"""
Below two functions salt the javascript and css files so that the server never uses a cached version.
"""
@app.context_processor
def override_url_for():
return dict(url_for=dated_url_for)
def dated_url_for(endpoint, **values):
if endpoint == 'static':
filename = values.get('filename', None)
if filename:
file_path = os.path.join(app.root_path,
endpoint, filename)
values['q'] = int(os.stat(file_path).st_mtime)
return url_for(endpoint, **values)
@app.route("/")
def home():
data = db.execute("SELECT * from document")
return render_template("index.html", data=data)
@app.route("/twitter")
def twitter():
return render_template("twitter.html")
@app.route("/books")
def books():
return render_template("books.html")
@app.route("/reddit")
def reddit():
return render_template("reddit.html")
@app.route("/custom")
def custom():
return render_template("custom.html")
@app.route("/generic")
def generic():
return render_template("generic.html")
@app.route("/combined")
def combined():
return render_template("combined.html")
@app.route("/admin")
def admin():
return render_template("admin.html")
@app.route("/test")
def test():
return render_template("test.html")
SOURCES = ["*", "Books", "Papers", "Twitter", "Facebook", "RedditSubmission"]
@app.route("/query_db", methods=["POST"])
def handle_query():
print(request.form)
#source = SOURCES[int(request.form['source'])]
source = "RedditSubmission"
author = request.form['author']
length = request.form['length']
subreddit = "askreddit"
if length:
length = int(length)
else:
length = 500
filters = []
if author != '':
filters.append('author="{0}"'.format(author))
if subreddit != '':
filters.append('UPPER(subreddit)=UPPER("{0}")'.format(subreddit))
query = """
SELECT text, url, title FROM {0}
""".format(source)
if filters:
query+="WHERE "+",".join(filters)
print(query)
result = db.execute(query)
texts, urls, titles = zip(*result)
print(len(result))
generated_text = markov.generate(" ".join(titles),length)
return jsonify(generated_text)
@app.route("/autocomplete")
def autocomplete():
args = request.args
table = args['table']
field = args['field']
query = 'SELECT DISTINCT {0} from {1}'.format(field, table)
if 'constraint' in args.keys():
query+= " WHERE " + args['constraint']
print(query)
return jsonify([result[0] for result in db.execute(query) if result[0]])
@app.route("/requests", methods=["POST"])
def handle_request():
# Store when we started processing the request
start_time = time.time()
# Put the posted data into a dictionary
keys = request.form.keys()
data = dict()
for key in keys:
data[key] = request.form[key]
source = data['source']
response = dict()
if source == 'RedditSubmission':
response = generator.generate_reddit_submission(data)
elif source == 'RedditComment':
response = generator.generate_reddit_comment(data)
elif source == 'Tweet':
response = generator.generate_tweet(data)
elif source == 'Book':
response = generator.generate_book(data)
elif source == 'Custom':
response = generator.generate_custom(data)
elif source == 'Combined':
response = generator.generate_combined(data)
else:
print("WARNING: Unknown source '{0}' given in request.".format(source))
# Get the total server time it took to process this request
server_time = time.time() - start_time
response['server_time'] = server_time
response['source'] = source
return jsonify(response)
@app.route("/change_db", methods=["POST"])
def handle_change():
command = request.form['command']
source = request.form['source']
t = request.form['type']
if command == 'INSERT':
if source == "RedditSubmission":
if t == 'URL':
scraper = RedditScraper(data_path='./scrapers/data/reddit')
submission = scraper.scrape_submission_from_url(request.form['url'])
submission = scraper.format_submission(submission)
db.insert_reddit_submission(submission)
db.commit()
return "Inserted Submission"
elif t == 'SUBREDDIT':
db.scrape_reddit_submissions(amount=request.form['count'], subreddit=request.form['subreddit'])
db.commit()
return "Finished Scraping Subreddit"
elif t == 'USER':
db.scrape_reddit_submissions(amount=request.form['count'], user=request.form['user'])
db.commit()
return "Finished Scraping User"
elif source == "RedditComment":
if t == 'URL':
scraper = RedditScraper(data_path='./scrapers/data/reddit')
comment = scraper.scrape_comment_from_url(request.form['url'])
comment = scraper.format_comment(comment)
db.insert_reddit_comment(comment)
db.commit()
return "Inserted Comment"
elif t == 'SUBREDDIT':
db.scrape_reddit_comments(amount=request.form['count'], subreddit=request.form['subreddit'])
db.commit()
return "Finished Scraping Subreddit"
elif t == 'USER':
db.scrape_reddit_comments(amount=request.form['count'], user=request.form['user'])
db.commit()
return "Finished Scraping User"
elif source == "Tweet":
if t == "URL":
scraper = TwitterScraper(data_path='./scrapers/data/twitter')
return "//TODO"
elif t.lower() == "hashtag":
db.scrape_twitter_hashtag(request.form['hashtag'], amount = request.form['count'])
return "Finished Scraping HashTag"
elif t == "USER":
db.scrape_twitter_user(request.form['author'], amount = request.form['count'])
return "Finished Scraping User"
elif command == 'DELETE':
if source == 'RedditSubmission':
if t == 'SUBREDDIT':
db.delete_reddit_submission(subreddit=request.form['subreddit'])
return "Done"
elif t == 'USER':
db.delete_reddit_submission(author=request.form['author'])
return "Done"
return "Done"
elif command == 'UPDATE':
scraper = RedditScraper(data_path='./scrapers/data')
submission = scraper.scrape_submission_from_url(request.form['url'])
submission = scraper.format_submission(submission)
db.update_reddit_post(submission)
db.commit()
return jsonify(submission)
elif command == 'SCRAPE SUBREDDIT':
scraper = RedditScraper(data_path='./scrapers/data')
subreddit = request.form['subreddit'].lower()
new_data = scraper.scrape_subreddit(subreddit=subreddit, submissions=100, comment_submissions=0, comments_per_sub=0, time_period='year')
if len(new_data['submissions']) > 0:
for submission in new_data['submissions']:
db.insert_reddit_post(submission)
db.commit()
#if len(new_data['comments']) > 0:
#for comment in new_data['comments']:
#TODO: Insert comments into comment database
return jsonify(new_data)
elif command == 'DELETE SUBREDDIT':
subreddit = request.form['subreddit']
db.delete_reddit_posts_from_subreddit(subreddit)
db.commit()
scraper = RedditScraper(data_path='./scrapers/data')
scraper.delete_stored_submissions(subreddit=subreddit)
return 'Done'
else:
print("ERROR: Unknown change request")
return "ERROR"
return "Done"
if __name__ == "__main__":
app.run(host='0.0.0.0')