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app.py
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import sys
import os
import json
sys.path.insert(0, os.path.dirname(__file__))
from flask import Flask,jsonify
from flask import make_response, request, current_app
from functools import update_wrapper
from datetime import timedelta
from flask_socketio import SocketIO
SUMMARIZER=""
app = Flask(__name__, instance_relative_config=True)
app.secret_key =b'\xaa\x12\xce\xdf\xc3\xb1\x90\xd8!z\xe6\xe9V\x82<r'
srv_url = 'http://timan102.cs.illinois.edu/explanation/'
# app.config.from_object('config')
socketio = SocketIO(app)
application = app
from flask import render_template
from flask import request,jsonify,session
import urllib
import model
# import forms
import datetime
COURSE_NAMES = None
NUM_COURSES = None
NUM_VIS = 0
MAX_HIST = 50
IS_LOCAL_SRV = True
def crossdomain(origin=None, methods=None, headers=None, max_age=21600,
attach_to_all=True, automatic_options=True):
"""Decorator function that allows crossdomain requests.
Courtesy of
https://blog.skyred.fi/articles/better-crossdomain-snippet-for-flask.html
"""
if methods is not None:
methods = ', '.join(sorted(x.upper() for x in methods))
# use str instead of basestring if using Python 3.x
if headers is not None and not isinstance(headers, str):
headers = ', '.join(x.upper() for x in headers)
# use str instead of basestring if using Python 3.x
if not isinstance(origin, str):
origin = ', '.join(origin)
if isinstance(max_age, timedelta):
max_age = max_age.total_seconds()
def get_methods():
""" Determines which methods are allowed
"""
if methods is not None:
return methods
options_resp = current_app.make_default_options_response()
return options_resp.headers['allow']
def decorator(f):
"""The decorator function
"""
def wrapped_function(*args, **kwargs):
"""Caries out the actual cross domain code
"""
if automatic_options and request.method == 'OPTIONS':
resp = current_app.make_default_options_response()
else:
resp = make_response(f(*args, **kwargs))
if not attach_to_all and request.method != 'OPTIONS':
return resp
h = resp.headers
h['Access-Control-Allow-Origin'] = origin
h['Access-Control-Allow-Methods'] = get_methods()
h['Access-Control-Max-Age'] = str(max_age)
h['Access-Control-Allow-Credentials'] = 'true'
h['Access-Control-Allow-Headers'] = \
"Origin, X-Requested-With, Content-Type, Accept, Authorization"
if headers is not None:
h['Access-Control-Allow-Headers'] = headers
return resp
f.provide_automatic_options = False
return update_wrapper(wrapped_function, f)
return decorator
def get_prev_urls():
global NUM_VIS
try:
prev_urls = session['urls']
# print ("prev",prev_urls,session['disp_strs'])
NUM_VIS = len(prev_urls)
except KeyError:
session['urls'] = []
session['disp_strs'] = []
session.modified = True
NUM_VIS = 0
return list(session['urls']),list(session['disp_strs'])
def set_sess(url,ses_disp_str):
global MAX_HIST,IS_LOCAL_SRV
if not IS_LOCAL_SRV:
url = modify_url_domain(url)
if (len(session['urls'])==0) or (len(session['urls'])>0 and session['urls'][-1]!=url): #consecutive visits to same slide
if len(session['urls']) == MAX_HIST:
session['urls'].pop(0)
session['disp_strs'].pop(0)
session['urls'].append(url)
session['disp_strs'].append(ses_disp_str)
session.modified = True
def modify_url_domain(url):
return url.replace('http://localhost:8096/','http://timan102.cs.illinois.edu/explanation//')
@app.route('/')
def index():
global COURSE_NAMES,NUM_COURSES,NUM_VIS
COURSE_NAMES,NUM_COURSES = model.get_course_names()
model.load_related_slides()
vis_urls,vis_strs = get_prev_urls()
return render_template("base.html",course_names=COURSE_NAMES,num_courses=NUM_COURSES,vis_urls=vis_urls,vis_strs=vis_strs,num_vis=NUM_VIS)
def resolve_slide(course_name,lno,type_,slide_name=None,log=False,action=None):
global COURSE_NAMES,NUM_COURSES
if COURSE_NAMES is None and NUM_COURSES is None:
COURSE_NAMES,NUM_COURSES = model.get_course_names()
if type_ =='drop-down':
ret = model.get_next_slide(course_name,lno)
elif type_ == 'related' or type_=='search_results':
ret = model.get_slide(course_name,slide_name,lno)
elif type_ == 'next':
ret = model.get_next_slide(course_name,lno,slide_name)
elif type_ == 'prev':
ret = model.get_prev_slide(course_name,lno,slide_name)
if log:
if ret[0] is not None:
print ('logging ', ret[0])
model.log(request.remote_addr,ret[0],datetime.datetime.now(),action)
else:
model.log(request.remote_addr,'End',datetime.datetime.now(),action)
return ret
@app.route('/slide/<course_name>/<lno>')
def slide(course_name,lno):
global NUM_VIS
next_slide_name,lno,lec_name,(num_related_slides,related_slides,disp_str,related_course_names,rel_lnos,rel_lec_names,disp_color,disp_snippet),lec_names,lnos,ses_disp_str= resolve_slide(course_name,lno,'drop-down')
vis_urls,vis_strs = get_prev_urls()
if next_slide_name is not None:
set_sess(request.url,ses_disp_str)
return render_template("slide.html",slide_name=next_slide_name,course_name=course_name,num_related_slides=num_related_slides,related_slides = related_slides,disp_str=disp_str,disp_color=disp_color,disp_snippet=disp_snippet,related_course_names=related_course_names,lno=lno,lec_name=lec_name,lec_names=lec_names,lnos=lnos,course_names=COURSE_NAMES,num_courses=NUM_COURSES,rel_lnos=rel_lnos,rel_lec_names=rel_lec_names,vis_urls=vis_urls,vis_strs=vis_strs,num_vis=NUM_VIS)
@app.route('/related_slide/<course_name>/<lno>/<slide_name>')
def related_slide(course_name,slide_name,lno):
global NUM_VIS
next_slide_name,lno,lec_name,(num_related_slides,related_slides,disp_str,related_course_names,rel_lnos,rel_lec_names,disp_color,disp_snippet),lec_names,lnos,ses_disp_str=resolve_slide(course_name,lno,'related',slide_name=slide_name)
vis_urls,vis_strs = get_prev_urls()
if next_slide_name is not None:
set_sess(request.url,ses_disp_str)
return render_template("slide.html",slide_name=next_slide_name,course_name=course_name,num_related_slides=num_related_slides,related_slides = related_slides,disp_str=disp_str,disp_color=disp_color,disp_snippet=disp_snippet,related_course_names=related_course_names,lno=lno,lec_name=lec_name,lec_names=lec_names,lnos=lnos,course_names=COURSE_NAMES,num_courses=NUM_COURSES,rel_lnos=rel_lnos,rel_lec_names=rel_lec_names,vis_urls=vis_urls,vis_strs=vis_strs,num_vis=NUM_VIS)
@app.route('/next_slide/<course_name>/<lno>/<curr_slide>')
def next_slide(course_name,lno,curr_slide):
global NUM_VIS
next_slide_name,lno,lec_name,(num_related_slides,related_slides,disp_str,related_course_names,rel_lnos,rel_lec_names,disp_color,disp_snippet),lec_names,lnos,ses_disp_str = resolve_slide(course_name,lno,'next',slide_name=curr_slide)
vis_urls,vis_strs = get_prev_urls()
if next_slide_name is not None:
set_sess(request.url,ses_disp_str)
if next_slide_name is not None:
return render_template("slide.html",slide_name=next_slide_name,course_name=course_name,num_related_slides=num_related_slides,related_slides = related_slides,disp_str=disp_str,disp_color=disp_color,disp_snippet=disp_snippet,related_course_names=related_course_names,lno=lno,lec_name=lec_name,lec_names=lec_names,lnos=lnos,course_names=COURSE_NAMES,num_courses=NUM_COURSES,rel_lnos=rel_lnos,rel_lec_names=rel_lec_names,vis_urls=vis_urls,vis_strs=vis_strs,num_vis=NUM_VIS )
else:
return render_template("end.html",course_names=COURSE_NAMES,num_courses=NUM_COURSES,vis_urls=vis_urls,vis_strs=vis_strs,num_vis=NUM_VIS)
@app.route('/prev_slide/<course_name>/<lno>/<curr_slide>')
def prev_slide(course_name,lno,curr_slide):
global NUM_VIS
prev_slide_name,lno,lec_name,(num_related_slides,related_slides,disp_str,related_course_names,rel_lnos,rel_lec_names,disp_color,disp_snippet),lec_names,lnos,ses_disp_str=resolve_slide(course_name,lno,'prev',slide_name=curr_slide)
vis_urls,vis_strs = get_prev_urls()
if prev_slide_name is not None:
set_sess(request.url,ses_disp_str)
if prev_slide_name is not None:
return render_template("slide.html",slide_name=prev_slide_name,course_name=course_name,num_related_slides=num_related_slides,related_slides = related_slides,disp_str=disp_str,disp_color=disp_color,disp_snippet=disp_snippet,related_course_names=related_course_names,lno=lno,lec_name=lec_name,lec_names=lec_names,lnos=lnos,course_names=COURSE_NAMES,num_courses=NUM_COURSES,rel_lnos=rel_lnos,rel_lec_names=rel_lec_names,vis_urls=vis_urls,vis_strs=vis_strs,num_vis=NUM_VIS)
else:
return render_template("end.html",course_names=COURSE_NAMES,num_courses=NUM_COURSES,vis_urls=vis_urls,vis_strs=vis_strs,num_vis=NUM_VIS)
@app.route('/end')
def end():
global COURSE_NAMES,NUM_COURSES,NUM_VIS
if COURSE_NAMES is None and NUM_COURSES is None:
COURSE_NAMES,NUM_COURSES = model.get_course_names()
vis_urls,vis_strs = get_prev_urls()
return render_template("end.html",course_names=COURSE_NAMES,num_courses=NUM_COURSES,vis_urls=vis_urls,vis_strs=vis_strs,num_vis=NUM_VIS)
@socketio.on('connect')
def value_changed():
print("connected")
@app.route("/explain", methods=["POST", "OPTIONS"])
@crossdomain(origin="*")
def socket_connection(course_name=None, lno=None, slide_name=None, curr_slide=None):
search_string = request.json["searchString"]
socketio.emit("message", search_string, broadcast=True)
print(request, search_string)
# model.log(request.remote_addr,search_string,datetime.datetime.now(),'search_query')
# num_results,results,disp_strs,search_course_names,lnos, snippets,lec_names = model.get_search_results(search_string)
# if not results:
# num_results = 0
# results = []
return "OK"
@app.route("/search", methods=["POST"])
def results(course_name=None, lno=None, slide_name=None, curr_slide=None):
querytext = request.json.get("searchString", None)
if not querytext:
return jsonify({})
explanation, file_names = model.get_explanation(querytext, summarizer=SUMMARIZER)
if explanation == "":
num_results = 0
else:
num_results = 1
response = jsonify(
{
"num_results": num_results,
"explanation": explanation,
"file_names": file_names,
}
)
# print(response)
return response
@app.route('/search_slide/<course_name>/<lno>/<slide_name>')
def search_slide(course_name,slide_name,lno):
return related_slide(course_name,slide_name,lno)
@app.route('/search_slides', methods=['POST'])
def search_results(course_name=None, lno=None, slide_name=None, curr_slide=None):
search_string = request.json['searchString']
log_helper(search_string + '###QUERY',request.json['route'])
num_results,results,disp_strs,search_course_names,lnos, snippets,lec_names = model.get_search_results(search_string)
if not results:
num_results = 0
results = []
response = jsonify({ 'num_results': num_results, 'results':results, 'disp_strs':disp_strs, 'search_course_names':search_course_names,'lnos':lnos,'course_names':COURSE_NAMES,'num_courses':NUM_COURSES,'snippets':snippets,'lec_names':lec_names
})
return response
def log_helper(action,route):
if action is not None and route is not None:
route_ele = route.split('/')
if IS_LOCAL_SRV:
func_type = route_ele[1]
else:
func_type = route_ele[3]
print (func_type,route_ele)
if IS_LOCAL_SRV:
beg = 2
else:
beg = 4
if func_type == 'related_slide':
resolve_slide(route_ele[beg],route_ele[beg+1],'related',slide_name=route_ele[beg+2],log=True,action=action)
elif func_type == 'next_slide':
resolve_slide(route_ele[beg],route_ele[beg+1],'next',slide_name=route_ele[beg+2],log=True,action=action)
elif func_type == 'prev_slide':
resolve_slide(route_ele[beg],route_ele[beg+1],'prev',slide_name=route_ele[beg+2],log=True,action=action)
elif func_type == 'slide':
resolve_slide(route_ele[beg],route_ele[beg+1],'drop-down',log=True,action=action)
elif func_type == 'search_slide':
resolve_slide(route_ele[beg],route_ele[beg+1],'search_results',slide_name=route_ele[beg+2],log=True,action=action)
@app.route('/log_action',methods=['GET', 'POST'])
def log_action():
request_dict = json.loads(request.data)
action = request_dict['action']
route = request_dict['route']
log_helper(action,route)
resp = jsonify(success=True)
return resp
if __name__ == '__main__':
socketio.run(app,host='localhost',port=8096, debug=True)