diff --git a/.gitignore b/.gitignore index f85c6b1..fb6e305 100644 --- a/.gitignore +++ b/.gitignore @@ -1 +1,5 @@ -config.py \ No newline at end of file +*/node_modules/ +libinfo-scraper/ +!libinfo-scraper/__pycache__ +!libinfo-scraper/easy_install.py +!libinfo-scraper/libinfo-scraper.py \ No newline at end of file diff --git a/busyness/__init__.py b/busyness/__init__.py new file mode 100644 index 0000000..8b8fd6c --- /dev/null +++ b/busyness/__init__.py @@ -0,0 +1,56 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +from .crawler import run +from .crawler import get_populartimes + +import logging +logging.getLogger(__name__).addHandler(logging.NullHandler()) + +""" + +ENTRY POINT + +""" + + +def get(api_key, types, p1, p2, n_threads=20, radius=180, all_places=False): + """ + :param api_key: str; api key from google places web service + :param types: [str]; placetypes + :param p1: (float, float); lat/lng of the south-west delimiting point + :param p2: (float, float); lat/lng of the north-east delimiting point + :param n_threads: int; number of threads to use + :param radius: int; meters; + :param all_places: bool; include/exclude places without populartimes + :return: see readme + """ + params = { + "API_key": api_key, + "radius": radius, + "type": types, + "n_threads": n_threads, + "all_places": all_places, + "bounds": { + "lower": { + "lat": min(p1[0], p2[0]), + "lng": min(p1[1], p2[1]) + }, + "upper": { + "lat": max(p1[0], p2[0]), + "lng": max(p1[1], p2[1]) + } + } + } + + return run(params) + + +def get_id(api_key, place_id): + """ + retrieves the current popularity for a given place + :param api_key: + :param place_id: + :return: see readme + """ + return get_populartimes(api_key, place_id) diff --git a/busyness/__pycache__/crawler.cpython-37.pyc b/busyness/__pycache__/crawler.cpython-37.pyc new file mode 100644 index 0000000..f65139b Binary files /dev/null and b/busyness/__pycache__/crawler.cpython-37.pyc differ diff --git a/busyness/crawler.py b/busyness/crawler.py new file mode 100644 index 0000000..850c4f9 --- /dev/null +++ b/busyness/crawler.py @@ -0,0 +1,558 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +import calendar +import datetime +import json +import logging +import math +import re +import ssl +import threading +import urllib.request +import urllib.parse +from time import sleep, time +from queue import Queue + +# import requests +from botocore.vendored import requests + +# from geopy import Point +# from geopy.distance import vincenty, VincentyDistance + +# urls for google api web service +BASE_URL = "https://maps.googleapis.com/maps/api/place/" +RADAR_URL = BASE_URL + "radarsearch/json?location={},{}&radius={}&types={}&key={}" +NEARBY_URL = BASE_URL + "nearbysearch/json?location={},{}&radius={}&types={}&key={}" +DETAIL_URL = BASE_URL + "details/json?placeid={}&key={}" + +# user agent for populartimes request +USER_AGENT = {"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) " + "AppleWebKit/537.36 (KHTML, like Gecko) " + "Chrome/54.0.2840.98 Safari/537.36"} + + +class PopulartimesException(Exception): + """Exception raised for errors in the input. + + Attributes: + expression -- input expression in which the error occurred + message -- explanation of the error + """ + + def __init__(self, expression, message): + self.expression = expression + self.message = message + + +def rect_circle_collision(rect_left, rect_right, rect_bottom, rect_top, circle_x, circle_y, radius): + # returns true iff circle intersects rectangle + + def clamp(val, min, max): + # limits value to the range min..max + if val < min: + return min + if val > max: + return max + return val + + # Find the closest point to the circle within the rectangle + closest_x = clamp(circle_x, rect_left, rect_right); + closest_y = clamp(circle_y, rect_bottom, rect_top); + + # Calculate the distance between the circle's center and this closest point + dist_x = circle_x - closest_x; + dist_y = circle_y - closest_y; + + # If the distance is less than the circle's radius, an intersection occurs + dist_sq = (dist_x * dist_x) + (dist_y * dist_y); + + return dist_sq < (radius * radius); + +def cover_rect_with_cicles(w, h, r): + """ + fully cover a rectangle of given width and height with + circles of radius r. This algorithm uses a hexagonal + honeycomb pattern to cover the area. + + :param w: width of rectangle + :param h: height of reclangle + :param r: radius of circles + :return: list of circle centers (x,y) + """ + + #initialize result list + res = [] + + # horizontal distance between circle centers + x_dist = math.sqrt(3) * r + # vertical distance between circle centers + y_dist = 1.5 * r + # number of circles per row (different for even/odd rows) + cnt_x_even = math.ceil(w / x_dist) + cnt_x_odd = math.ceil((w - x_dist/2) / x_dist) + 1 + # number of rows + cnt_y = math.ceil((h-r) / y_dist) + 1 + + y_offs = 0.5 * r + for y in range(cnt_y): + if y % 2 == 0: + # shift even rows to the right + x_offs = x_dist/2 + cnt_x = cnt_x_even + else: + x_offs = 0 + cnt_x = cnt_x_odd + + for x in range(cnt_x): + res.append((x_offs + x*x_dist, y_offs + y*y_dist)) + + # top-right circle is not always required + if res and not rect_circle_collision(0, w, 0, h, res[-1][0], res[-1][1], r): + res = res[0:-1] + + return res + +def get_circle_centers(b1, b2, radius): + """ + the function covers the area within the bounds with circles + + :param b1: south-west bounds [lat, lng] + :param b2: north-east bounds [lat, lng] + :param radius: specified radius, adapt for high density areas + :return: list of circle centers that cover the area between lower/upper + """ + + sw = Point(b1) + ne = Point(b2) + + # north/east distances + dist_lat = vincenty(Point(sw[0], sw[1]), Point(ne[0], sw[1])).meters + dist_lng = vincenty(Point(sw[0], sw[1]), Point(sw[0], ne[1])).meters + + circles = cover_rect_with_cicles(dist_lat, dist_lng, radius) + cords = [ + VincentyDistance(meters=c[0]) + .destination( + VincentyDistance(meters=c[1]) + .destination(point=sw, bearing=90), + bearing=0 + )[:2] + for c in circles + ] + + return cords + + +def worker_radar(): + """ + worker that gets coordinates of queue and starts radar search + :return: + """ + while True: + item = q_radar.get() + get_radar(item) + q_radar.task_done() + + +def get_radar(item): + _lat, _lng = item["pos"] + + # places - nearby search + # https://developers.google.com/places/web-service/search?hl=en#PlaceSearchRequests + radar_str = NEARBY_URL.format( + _lat, _lng, params["radius"], "|".join(params["type"]), params["API_key"] + ) + + # is this a next page request? + if item["res"] > 0: + # possibly wait remaining time until next_page_token becomes valid + min_wait = 2 # wait at least 2 seconds before the next page request + sec_passed = time() - item["last_req"] + if sec_passed < min_wait: + sleep(min_wait - sec_passed) + radar_str += "&pagetoken=" + item["next_page_token"] + + resp = json.loads(requests.get(radar_str, auth=('user', 'pass')).text) + check_response_code(resp) + + radar = resp["results"] + + item["res"] += len(radar) + if item["res"] >= 60: + logging.warning("Result limit in search radius reached, some data may get lost") + + bounds = params["bounds"] + + # retrieve google ids for detail search + for place in radar: + + geo = place["geometry"]["location"] + if bounds["lower"]["lat"] <= geo["lat"] <= bounds["upper"]["lat"] \ + and bounds["lower"]["lng"] <= geo["lng"] <= bounds["upper"]["lng"]: + # this isn't thread safe, but we don't really care, + # since in worst case a set entry is simply overwritten + g_places[place["place_id"]] = place + + # if there are more results, schedule next page requests + if "next_page_token" in resp: + item["next_page_token"] = resp["next_page_token"] + item["last_req"] = time() + q_radar.put(item) + + +def worker_detail(): + """ + worker that gets item of queue and starts detailed data retrieval + :return: + """ + while True: + item = q_detail.get() + get_detail(item) + q_detail.task_done() + + +def get_popularity_for_day(popularity,name=""): + """ + Returns popularity for day + :param popularity: + :return: + """ + + # Initialize empty matrix with 0s + pop_json = [[0 for _ in range(24)] for _ in range(7)] + wait_json = [[0 for _ in range(24)] for _ in range(7)] + + for day in popularity: + + day_no, pop_times = day[:2] + + if pop_times: + for hour_info in pop_times: + + hour = hour_info[0] + pop_json[day_no - 1][hour] = hour_info[1] + + # check if the waiting string is available and convert no minutes + if len(hour_info) > 5: + wait_digits = re.findall(r'\d+', hour_info[3]) + + if len(wait_digits) == 0: + wait_json[day_no - 1][hour] = 0 + elif "min" in hour_info[3]: + wait_json[day_no - 1][hour] = int(wait_digits[0]) + elif "hour" in hour_info[3]: + wait_json[day_no - 1][hour] = int(wait_digits[0]) * 60 + else: + wait_json[day_no - 1][hour] = int(wait_digits[0]) * 60 + int(wait_digits[1]) + + # day wrap + if hour_info[0] == 23: + day_no = day_no % 7 + 1 + + ret_popularity = [ + + { + "day": list(calendar.day_name)[d], + "busyness": pop_json[d] + } for d in range(7) + ] + + + # waiting time only if applicable + ret_wait = [ + { + "name": list(calendar.day_name)[d], + "data": wait_json[d] + } for d in range(7) + ] if any(any(day) for day in wait_json) else [] + + # {"name" : "monday", "data": [...]} for each weekday as list + return ret_popularity, ret_wait + + +def index_get(array, *argv): + """ + checks if a index is available in the array and returns it + :param array: the data array + :param argv: index integers + :return: None if not available or the return value + """ + + try: + + for index in argv: + array = array[index] + + return array + + # there is either no info available or no popular times + # TypeError: rating/rating_n/populartimes wrong of not available + except (IndexError, TypeError): + return None + + +def add_optional_parameters(detail_json, detail, rating, rating_n, popularity, current_popularity, time_spent): + """ + check for optional return parameters and add them to the result json + :param detail_json: + :param detail: + :param rating: + :param rating_n: + :param popularity: + :param current_popularity: + :param time_spent: + :return: + """ + # print(popularity) + if rating: + detail_json["rating"] = rating + elif "rating" in detail: + detail_json["rating"] = detail["rating"] + + if rating_n: + detail_json["rating_n"] = rating_n + + if "international_phone_number" in detail: + detail_json["international_phone_number"] = detail["international_phone_number"] + + if current_popularity: + detail_json["current_popularity"] = current_popularity + + if popularity: + popularity, wait_times = get_popularity_for_day(popularity) + + detail_json["populartimes"] = popularity + + if wait_times: + detail_json["time_wait"] = wait_times + + if time_spent: + detail_json["time_spent"] = time_spent + + return detail_json + + +def get_populartimes_from_search(place_identifier): + """ + request information for a place and parse current popularity + :param place_identifier: name and address string + :return: + """ + # print("place identifier={}".format(place_identifier)) + params_url = { + "tbm": "map", + "tch": 1, + "hl": "en", + "q": urllib.parse.quote_plus(place_identifier), + "pb": "!4m12!1m3!1d4005.9771522653964!2d-122.42072974863942!3d37.8077459796541!2m3!1f0!2f0!3f0!3m2!1i1125!2i976" + "!4f13.1!7i20!10b1!12m6!2m3!5m1!6e2!20e3!10b1!16b1!19m3!2m2!1i392!2i106!20m61!2m2!1i203!2i100!3m2!2i4!5b1" + "!6m6!1m2!1i86!2i86!1m2!1i408!2i200!7m46!1m3!1e1!2b0!3e3!1m3!1e2!2b1!3e2!1m3!1e2!2b0!3e3!1m3!1e3!2b0!3e3!" + "1m3!1e4!2b0!3e3!1m3!1e8!2b0!3e3!1m3!1e3!2b1!3e2!1m3!1e9!2b1!3e2!1m3!1e10!2b0!3e3!1m3!1e10!2b1!3e2!1m3!1e" + "10!2b0!3e4!2b1!4b1!9b0!22m6!1sa9fVWea_MsX8adX8j8AE%3A1!2zMWk6Mix0OjExODg3LGU6MSxwOmE5ZlZXZWFfTXNYOGFkWDh" + "qOEFFOjE!7e81!12e3!17sa9fVWea_MsX8adX8j8AE%3A564!18e15!24m15!2b1!5m4!2b1!3b1!5b1!6b1!10m1!8e3!17b1!24b1!" + "25b1!26b1!30m1!2b1!36b1!26m3!2m2!1i80!2i92!30m28!1m6!1m2!1i0!2i0!2m2!1i458!2i976!1m6!1m2!1i1075!2i0!2m2!" + "1i1125!2i976!1m6!1m2!1i0!2i0!2m2!1i1125!2i20!1m6!1m2!1i0!2i956!2m2!1i1125!2i976!37m1!1e81!42b1!47m0!49m1" + "!3b1" + } + + search_url = "https://www.google.de/search?" + "&".join(k + "=" + str(v) for k, v in params_url.items()) + logging.info("searchterm: " + search_url) + + # noinspection PyUnresolvedReferences + gcontext = ssl.SSLContext(ssl.PROTOCOL_TLSv1) + + resp = urllib.request.urlopen(urllib.request.Request(url=search_url, data=None, headers=USER_AGENT), + context=gcontext) + data = resp.read().decode('utf-8').split('/*""*/')[0] + + # find eof json + jend = data.rfind("}") + if jend >= 0: + data = data[:jend + 1] + + jdata = json.loads(data)["d"] + jdata = json.loads(jdata[4:]) + + # get info from result array, has to be adapted if backend api changes + info = index_get(jdata, 0, 1, 0, 14) + + rating = index_get(info, 4, 7) + rating_n = index_get(info, 4, 8) + + popular_times = index_get(info, 84, 0) + + # current_popularity is also not available if popular_times isn't + current_popularity = index_get(info, 84, 7, 1) + + time_spent = index_get(info, 117, 0) + + # extract wait times and convert to minutes + if time_spent: + + nums = [float(f) for f in re.findall(r'\d*\.\d+|\d+', time_spent.replace(",", "."))] + contains_min, contains_hour = "min" in time_spent, "hour" in time_spent or "hr" in time_spent + + time_spent = None + + if contains_min and contains_hour: + time_spent = [nums[0], nums[1] * 60] + elif contains_hour: + time_spent = [nums[0] * 60, (nums[0] if len(nums) == 1 else nums[1]) * 60] + elif contains_min: + time_spent = [nums[0], nums[0] if len(nums) == 1 else nums[1]] + + time_spent = [int(t) for t in time_spent] + + return rating, rating_n, popular_times, current_popularity, time_spent + + +def get_detail(place_id): + """ + loads data for a given area + :return: + """ + global results + + # detail_json = get_populartimes(params["API_key"], place_id) + detail_json = get_populartimes_by_detail(params["API_key"], g_places[place_id]) + + if params["all_places"] or "populartimes" in detail_json: + results.append(detail_json) + + +def get_populartimes(api_key, place_id): + """ + sends request to detail to get a search string + and uses standard proto buffer to get additional information + on the current status of popular times + :return: json details + """ + + # places api - detail search + # https://developers.google.com/places/web-service/details?hl=de + detail_str = DETAIL_URL.format(place_id, api_key) + resp = json.loads(requests.get(detail_str, auth=('user', 'pass')).text) + check_response_code(resp) + detail = resp["result"] + print(place_id,detail["name"]) + return get_populartimes_by_detail(api_key, detail) + + +def get_populartimes_by_detail(api_key, detail): + # print(detail) + address = detail["formatted_address"] if "formatted_address" in detail else detail["vicinity"] + + place_identifier = "{} {}".format(detail["name"], address) + + detail_json = { + "id": detail["place_id"], + "name": detail["name"], + "address": address, + "types": detail["types"], + "coordinates": detail["geometry"]["location"] + } + + detail_json = add_optional_parameters(detail_json, detail, *get_populartimes_from_search(place_identifier)) + + return detail_json + + +def get_populartimes_by_detail_no_key(place_identifier): + detail_json = { + "id": detail["place_id"], + "name": detail["name"], + "address": address, + "types": detail["types"], + "coordinates": detail["geometry"]["location"] + } + + detail_json = add_optional_parameters(detail_json, detail, *get_populartimes_from_search(place_identifier)) + + return detail_json + + +def check_response_code(resp): + """ + check if query quota has been surpassed or other errors occured + :param resp: json response + :return: + """ + if resp["status"] == "OK" or resp["status"] == "ZERO_RESULTS": + return + + if resp["status"] == "REQUEST_DENIED": + raise PopulartimesException("Google Places " + resp["status"], + "Request was denied, the API key is invalid.") + + if resp["status"] == "OVER_QUERY_LIMIT": + raise PopulartimesException("Google Places " + resp["status"], + "You exceeded your Query Limit for Google Places API Web Service, " + "check https://developers.google.com/places/web-service/usage " + "to upgrade your quota.") + + if resp["status"] == "INVALID_REQUEST": + raise PopulartimesException("Google Places " + resp["status"], + "The query string is malformed, " + "check if your formatting for lat/lng and radius is correct.") + + if resp["status"] == "INVALID_REQUEST": + raise PopulartimesException("Google Places " + resp["status"], + "The query string is malformed, " + "check if your formatting for lat/lng and radius is correct.") + + if resp["status"] == "NOT_FOUND": + raise PopulartimesException("Google Places " + resp["status"], + "The place ID was not found and either does not exist or was retired.") + + raise PopulartimesException("Google Places " + resp["status"], + "Unidentified error with the Places API, please check the response code") + + +def run(_params): + """ + wrap execution logic in method, for later external call + :return: + """ + global params, g_places, q_radar, q_detail, results + + start = datetime.datetime.now() + + # shared variables + params = _params + q_radar, q_detail = Queue(), Queue() + g_places, results = dict(), list() + + logging.info("Adding places to queue...") + + # threading for radar search + for i in range(params["n_threads"]): + t = threading.Thread(target=worker_radar) + t.daemon = True + t.start() + + # cover search area with circles + bounds = params["bounds"] + for lat, lng in get_circle_centers([bounds["lower"]["lat"], bounds["lower"]["lng"]], # southwest + [bounds["upper"]["lat"], bounds["upper"]["lng"]], # northeast + params["radius"]): + q_radar.put(dict(pos=(lat, lng), res=0)) + + q_radar.join() + logging.info("Finished in: {}".format(str(datetime.datetime.now() - start))) + + logging.info("{} places to process...".format(len(g_places))) + + # threading for detail search and popular times + for i in range(params["n_threads"]): + t = threading.Thread(target=worker_detail) + t.daemon = True + t.start() + + for g_place_id in g_places: + q_detail.put(g_place_id) + + q_detail.join() + logging.info("Finished in: {}".format(str(datetime.datetime.now() - start))) + + return results diff --git a/busyness/crawler.pyc b/busyness/crawler.pyc new file mode 100644 index 0000000..c73160b Binary files /dev/null and b/busyness/crawler.pyc differ diff --git a/busyness/lambda_function.py b/busyness/lambda_function.py new file mode 100644 index 0000000..cf6bd32 --- /dev/null +++ b/busyness/lambda_function.py @@ -0,0 +1,65 @@ +import crawler + +import boto3 +import json + + + + +# ChIJq6qqIYq8woARFNfDahGA4Js + +def lambda_handler(event, context): + # Get the service resource. + dynamodb = boto3.resource('dynamodb') + + # Instantiate a table resource object without actually + # creating a DynamoDB table. Note that the attributes of this table + # are lazy-loaded: a request is not made nor are the attribute + # values populated until the attributes + # on the table resource are accessed or its load() method is called. + table = dynamodb.Table('lib_hours') + + # google does not have data for the commented out libraries + libraries={ + 'Powell Library':'Powell Library', + 'Charles E. Young Research Library': 'Research Library (Charles E. Young)', + 'The Study at Hedrick':'The Study at Hedrick', + 'UCLA Music Library':'Music Library', + 'Rosenfeld Library':'Management Library (Eugene and Maxine Rosenfeld)', + 'UCLA Science and Engineering Library':'Science and Engineering Library' + # 'Hugh & Hazel Darling Law Library', + # 'UCLA Louise M. Darling Biomedical Library', + # 'Rudolph East Asian Library', + # 'Arts Library', + # 'Southern Regional Library Facility' + } + print(libraries) + for Library in libraries.keys(): + + print(Library) + rating, rating_n, popular_times, current_popularity, time_spent= crawler.get_populartimes_from_search(Library) + weekly_busyness=crawler.get_popularity_for_day(popular_times)[0] + + if current_popularity ==None: + current_popularity=0 + + + # popularity={ + # "name":libraries[Library], + # "weekly_busyness" :weekly_busyness, + # "current_busyness":current_popularity + # } + # table.update_item( + # Item=popularity + # ) + response = table.update_item( + Key={"name":libraries[Library]}, + UpdateExpression="set weekly_busyness = :wb, current_busyness=:cb", + ExpressionAttributeValues={ + ':wb': weekly_busyness, + ':cb': current_popularity, + }, + ReturnValues="UPDATED_NEW" + ) + print(response); +lambda_handler(0,0) \ No newline at end of file diff --git a/classroomScraper/index.js b/classroomScraper/index.js new file mode 100644 index 0000000..d7eb445 --- /dev/null +++ b/classroomScraper/index.js @@ -0,0 +1,519 @@ +var AWS = require("aws-sdk"); +AWS.config.update({ region: "us-east-1" }); +//var docClient = new AWS.DynamoDB.DocumentClient(); + +//RDS +// var pg = require('pg'); +// var con = mysql.createConnection({ +// host: 'studysmart-db.chpjzhfmtelr.us-west-1.rds.amazonaws.com', +// user: 'studyroot', +// password: 'studysmart-db', +// port: 5432, +// database: 'mydb' +// }); + +// con.connect(function(err) { +// if (err) throw err; +// console.log("Connected!"); +// }); + +var pg = require('pg'); +var conString = "postgres://studyroot:studysmart-db@studysmart-db.chpjzhfmtelr.us-west-1.rds.amazonaws.com:5432/mydb"; + +var client = new pg.Client(conString); +client.connect(err => { + if (err) { + console.error('Postgres connection error', err.stack); + } else { + console.log('connected to Postgres database'); + } +}); + +const requestPromise = require("request-promise"); +const moment = require("moment"); +const jsdom = require("jsdom"); +const { JSDOM } = jsdom; + +var res = []; +var queryFinished = false; + +exports.handler = async function (event) { + "use strict"; + + // Constants + const mainURL = + "https://www.registrar.ucla.edu/desktopmodules/ClassRoomSearch/api/webapi/GetClassroomItems"; + const classroomURL = + "https://www.registrar.ucla.edu/desktopmodules/ClassRoomSearch/api/webapi/GetCalendarEvents"; + const academicCalendarURL = + "https://www.registrar.ucla.edu/Calendars/Annual-Academic-Calendar"; + + // set the current term based on today's date + function parseDate(date, year) + { + let ret = year.concat("-"); + if(typeof(date) === 'string') + { + let tokens = date.split(", "); + if(tokens.length != 2) + { + console.log("could not parse date, datestring was not in correct format"); + process.exit(1); + } + else + { + let tokens2 = tokens[1].split(" "); + if(tokens2.length != 2) + { + console.log("could not parse date, datestring was not in correct format"); + process.exit(1); + } + else + { + switch(tokens2[0]) + { + case "January": + ret += "01-"; + break; + case "February": + ret += "02-"; + break; + case "March": + ret += "03-"; + break; + case "April": + ret += "04-"; + break; + case "May": + ret += "05-"; + break; + case "June": + ret += "06-"; + break; + case "July": + ret += "07-"; + break; + case "August": + ret += "08-"; + break; + case "September": + ret += "09-"; + break; + case "October": + ret += "10-"; + break; + case "Novemeber": + ret += "11-"; + break; + case "December": + ret += "12-"; + break; + default: + console.log("could not parse date, month is invalid"); + process.exit(1); + } + + if(tokens2[1].length == 1) + ret += "0"; + ret = ret.concat(tokens2[1]); + return ret; + } + } + } + else + { + console.log("could not parse date, parameter was not a string"); + process.exit(1); + } + } + + async function getCurrentTerm() + { + console.log("getting current term"); + console.log("trying to send request to", academicCalendarURL); + async function handleRequest(options, delay) + { + let a = new Promise(function(resolve, reject) { + setTimeout(() => resolve("done"), delay); + }); + + await a; + + return requestPromise(options); + } + + let options = { + method: "GET", + url: academicCalendarURL, + json: true + }; + + var results = await handleRequest(options, 1000); + const dom = new JSDOM(results); + + let currDate = new Date(); + let year = currDate.getFullYear() - 2000; + // we get all the elements where id ends with (for example) 2019-20 and 2020-21 + let academicYears = dom.window.document.querySelectorAll(`[id$='20${year - 1}-${year}'][id^='lt'], [id$='20${year}-${year + 1}'][id^='lt']`); + + // then we loop through the two academic years and we find the dates that "quarter begins" corresponds to + // first maintain a counter to determine what year each date corresponds to + // each time, it only outputs 8 values, because we are searching through two academic years + // 2 academic years * (3 dates for each regular quarter + 1 date for summer session) = 8 dates + let count = 0; + let dates = []; + for(let i = 0; i < academicYears.length; i++) + { + let rows = academicYears[i].querySelectorAll("td"); + for(let j = 0; j < rows.length; j++) + { + let text = rows[j].textContent; + if(text.match(/Quarter begins*/) || text.match(/Summer session begins*/)) + { + switch(count) + { + case 0: + // we'll discard the date from the previous year + break; + case 1: + case 2: + case 3: + case 4: + // we only push the dates that pertain to the current year + dates.push(new Date(parseDate(rows[j + 1].textContent, "20" + year))); + break; + case 5: + case 6: + case 7: + // we'll also discared the dates in the next year + break; + default: + // this is just to check if we've outputted the right number of dates. + // if there were too many, then we know there was an error + console.log("error: too many \"quarter begins\" or \"summer session begins\" dates were outputted"); + } + + count++; + } + } + } + + // our dates list should contain 4 dates in the same calendar year - the start of each quarter: Winter, Spring, Summer Sessions, Fall + let num = -1; + for(let i = 0; i < dates.length; i++) + { + if(currDate.getTime() < dates[i].getTime()) + { + num = i; + break; + } + } + + if(num == -1) + num = 4; + + switch(num) + { + case 0: + return (year - 1) + "F"; + case 1: + return year + "W"; + case 2: + return year + "S"; + case 3: + return year + "1"; + case 4: + return year + "F"; + } + } + + let currentTerm = await getCurrentTerm(); + console.log("the current term is", currentTerm); + + // Helper functions + function processClassroomJson(buildingClassroom) { + return { + building: buildingClassroom.value.slice(0, 8), + room: buildingClassroom.value.substr(9), + buildingName: buildingClassroom.label.slice(0, 8).trim(), + roomName: buildingClassroom.label.substr(9).trim() + }; + } + + function processClassTimeObject(buildingArray, classNameTime) { + if (classNameTime.enroll_total === 0) return buildingArray; + + let processedObject = { + day: "", + start: "", + end: "" + }; + + if (classNameTime.start.substr(0, 9) != "2014-11-1") { + processedObject.day = "Varies"; + processedObject.start = classNameTime.start.substr(0, 5); + processedObject.end = classNameTime.end.substr(0, 5); + } else { + let startTime = moment(classNameTime.start); + let endTime = moment(classNameTime.end); + + processedObject.day = startTime.format("d"); + processedObject.start = startTime.format("HH:mm"); + processedObject.end = endTime.format("HH:mm"); + } + buildingArray.push(processedObject); + return buildingArray; + } + + async function getClassroomTimes(buildingRoomObject, callback) { + let options = { + method: "GET", + url: classroomURL, + qs: { + term: currentTerm, + building: buildingRoomObject.building, + room: buildingRoomObject.room + }, + json: true + }; + + var finishedRequest = false; + while(!finishedRequest) + { + try + { + var body = await handleRequest(options, 100); + finishedRequest = true; + } + catch(e) + { + console.log("RequestError for getting ", buildingRoomObject.building, buildingRoomObject.room); + console.log(e.message); + console.log("trying again...") + } + } + + body = body.reduce(processClassTimeObject, []); + + let finalClassroomObject = { + building: buildingRoomObject.buildingName, + room: buildingRoomObject.roomName, + classTimes: body + }; + let ClassroomAvailabilities = getAvailableTimes(finalClassroomObject); + callback(ClassroomAvailabilities); + } + + function tomins(timeString) { + let timeObj = stoiParser(timeString); + return timeObj['hour'] * 60 + timeObj['minutes']; + } + + function stoiParser(timeString) { + return { + 'hour': parseInt(timeString.substring(0, 2)), + 'minutes': parseInt(timeString.substring(3)) + }; + } + + function getAvailableTimes(classroomTimeObject) { + let inverseObject = {}; + let inverseArray = []; + + inverseObject.building = classroomTimeObject.building; + inverseObject.room = classroomTimeObject.room; + inverseObject.classTimes = []; + inverseObject.class_key = ""; + let timesByDay = { '1': [], '2': [], '3': [], '4': [], '5': [], 'Varies': [] }; + let inverseTimesByDay = { '1': [], '2': [], '3': [], '4': [], '5': [], 'Varies': [] } + for (let timeSlot of classroomTimeObject.classTimes) { + timesByDay[timeSlot.day].push(timeSlot); + } + for (let d in timesByDay) { + let s = '08:00'; + for (let slot of timesByDay[d]) { + if (tomins(slot['start']) - tomins(s) > 15) { + inverseTimesByDay[d].push({ 'day': d, 'start': s, 'end': slot['start'] }); + } + s = slot['end']; + } + inverseTimesByDay[d].push({ 'day': d, 'start': s, 'end': '22:00' }); + } + + for (let d in inverseTimesByDay) { + for (let slot of inverseTimesByDay[d]) { + let NewTimeSlot = {} + NewTimeSlot.day = d; + NewTimeSlot.start = tomins(slot['start']); + NewTimeSlot.end = tomins(slot['end']); + NewTimeSlot.room = inverseObject.room; + NewTimeSlot.building = inverseObject.building; + inverseArray.push(NewTimeSlot); + } + } + + return inverseArray; + } + + // Wrapper function for sending requests, with delay parameter. + async function handleRequest(options, delay) + { + let a = new Promise(function(resolve, reject) { + setTimeout(() => resolve("done"), delay); + }); + + await a; + + return requestPromise(options); + } + + async function queryWrapper(sql) + { + await client.query(sql); + return true; + } + + async function continueExec() + { + // Here is the trick, wait until var callbackCount is set number of callback functions. + if (done_count > 0) + { + return false; + } + + // Finally, do what you need + console.log("got each classroom's schedule"); + let st = "" + res.forEach(function (resp) { + if (resp.day != "Varies" && resp.start < resp.end) { + + let day = resp.day.toString(); + let start = resp.start.toString(); + let end = resp.end.toString(); + let room = resp.room; + let building = resp.building; + st += "(" + day + "," + start + "," + end + "," + "'" + room + "'" + "," + "'" + building + "'" + "),\n"; + + } + }) + + // Run the query in the database. + let deleteSQL = "DELETE FROM classroom_availabilities;"; + let insertSQL = "INSERT INTO classroom_availabilities (day, start_time, end_time, room, building) VALUES" + st.substring(0, st.length - 2); + try + { + console.log("deleting existing data from database..."); + await queryWrapper(deleteSQL); + let delay = new Promise(function(resolve, reject) { + setTimeout(() => resolve("done"), 1000); + }); + await delay; + console.log("inserting into the database..."); + queryFinished = await queryWrapper(insertSQL); + } + catch(err) + { + console.log(err.stack); + queryFinished = true; + } + + return true; + } + + function isUnusedRoom(crAvailList) + { + if(crAvailList.length == 6 + && crAvailList[0].day == '1' + && crAvailList[1].day == '2' + && crAvailList[2].day == '3' + && crAvailList[3].day == '4' + && crAvailList[4].day == '5' + && crAvailList[5].day == 'Varies') + return true; + + return false; + } + + // try to get classrooms for the current quarter + let options = { + method: "GET", + url: mainURL, + json: true + }; + + // Send a request to get all classrooms for the current quarter. + var resolved = false; + var delay = 2000; + while(!resolved) + { + console.log("trying to send request to ", options.url); + try + { + var body = await handleRequest(options, delay); + resolved = true; + } + catch(e) + { + console.log("error sending request to ", options.url, ": ", e.message); + console.log("trying to send it again..."); + } + } + + console.log("got classrooms"); + + // For each classroom, send a request to get its availability. + console.log("trying to send request to server for each classroom's availability..."); + let classrooms = body.map(processClassroomJson); + let done_count = classrooms.length; + + classrooms.forEach(async function (classroom) { + await getClassroomTimes(classroom, function (response) { + // Here you have access to your variable + if(!isUnusedRoom(response)) + res = res.concat(response) + done_count -= 1; + }) + }); + + // We must wait until all the requests for the classrooms have returned. + // The while loop will continue to call "continueExec()" until the variable + // done_count reaches 0. The "continueExec()" function includes the query + // that is run in the database. + while(1) + { + let a = new Promise(function(resolve, reject) { + setTimeout(() => resolve("done"), 2000); + }); + + await a; + + console.log("waiting for all classroom requests to return..."); + if(await continueExec()) + break; + } + + // Wait for the query to finish running and then break. + while(1) + { + if(queryFinished) + { + console.log("finished."); + break; + } + + let a = new Promise(function(resolve, reject) { + setTimeout(() => resolve("done"), 2000); + }); + + await a; + console.log("waiting for query to finish..."); + } +}; + +//uncomment out this part if you want to run it locally +/*try { + exports.handler({}); +} catch (e) { + console.log("error"); + // Deal with the fact the chain failed +}*/ diff --git a/classroomScraper/package-lock.json b/classroomScraper/package-lock.json new file mode 100644 index 0000000..cb6618f --- /dev/null +++ b/classroomScraper/package-lock.json @@ -0,0 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"aws-sdk": "^2.544.0", + "index.js": "0.0.3", + "jsdom": "^16.2.2", + "moment": "^2.24.0", + "mysql": "^2.17.1", + "package": "^1.0.1", + "package-lock.json": "^1.0.0", + "pg": "^7.12.1", + "request": "^2.88.0", + "request-promise": "^4.2.5", + "sync-request": "^6.1.0" + } +} diff --git a/libHours/index.js b/libHours/index.js new file mode 100644 index 0000000..97c206b --- /dev/null +++ b/libHours/index.js @@ -0,0 +1,184 @@ +const jsdom = require("jsdom"); +const { JSDOM } = jsdom; +var rp = require("request-promise"); + +var AWS = require("aws-sdk"); +var Promise = require("bluebird"); +AWS.config.update({ region: "us-east-1" }); +var docClient = new AWS.DynamoDB.DocumentClient(); + +/* +// +{ + "name":"Arts Library", + "location":" 1400 Public Affairs Building, Los Angeles, CA 90095-1392", + "phone":"(310) 206-5425", + "image":"https://www.library.ucla.edu/sites/default/files/styles/thumbnail_large/public/location_map_images/map_arts.png?itok=0LT3XP_5", + "start_date":"Feb 17 ", + "department": + [ + { + "department_name":"Arts Library", + "time": + [ + {"dp_open_time":"1pm - 5pm","date":"Su 17"}, + {"dp_open_time":"9am - 5pm","date":"M 18"}, + {"dp_open_time":"8am - 9pm","date":"Tu 19"}, + {"dp_open_time":"8am - 9pm","date":"W 20"}, + {"dp_open_time":"8am - 9pm","date":"Th 21"}, + {"dp_open_time":"8am - 5pm","date":"F 22"}, + {"dp_open_time":"1pm - 5pm","date":"Sa 23"} + ] + }, + { + "department_name":"CLICC Laptop & iPad Lending (Arts Library)", + "time": + [ + {"dp_open_time":"1pm - 4:30pm","date":"Su 17"}, + {"dp_open_time":"9am - 4:30pm","date":"M 18"}, + {"dp_open_time":"8am - 8:30pm","date":"Tu 19"}, + {"dp_open_time":"8am - 8:30pm","date":"W 20"}, + {"dp_open_time":"8am - 8:30pm","date":"Th 21"}, + {"dp_open_time":"8am - 4:30pm","date":"F 22"}, + {"dp_open_time":"1pm - 4:30pm","date":"Sa 23"} + ] + }, + { + "department_name":"Reference Desk", + "time": + [ + {"dp_open_time":"Closed","date":"Su 17"}, + {"dp_open_time":"Closed","date":"M 18"}, + {"dp_open_time":"11am - 4pm","date":"Tu 19"}, + {"dp_open_time":"11am - 4pm","date":"W 20"}, + {"dp_open_time":"11am - 4pm","date":"Th 21"}, + {"dp_open_time":"11am - 4pm","date":"F 22"}, + {"dp_open_time":"Closed","date":"Sa 23"}] + } + ] +}*/ +exports.handler = async function (event) { + try { + // console.log("here"); + console.log("here"); + //Url to visit + let options = { + method: "GET", + url: "https://www.library.ucla.edu/hours", + }; + + var body = await rp(options); + const dom = new JSDOM(body); + + await new Promise((resolve) => setTimeout(resolve, 1500)); + //find names of the 11 libraries + const names = dom.window.document.querySelectorAll('div.pane-node-title h2') + //find address of the 11 libraries + const addresses = dom.window.document.querySelectorAll('div.location__address') + //find opening times of the 11 libraries + const time_of_dp = dom.window.document.querySelectorAll('table.opening-hours-week') + //find phone number + const phones = dom.window.document.querySelectorAll('span.location__phone-number') + //find image + const imgs = dom.window.document.querySelectorAll('img') + console.log(imgs) + const num_rooms = names.length; + const data = []; + for (let n = 0; n < num_rooms; n++) { + var obj = new Object(); + //add name to lib obj + const lib_name = names[n].textContent.trim() + obj["name"] = lib_name + + //add location to lib obj + const lib_loc = addresses[n].textContent.trim() + obj["location"] = lib_loc + //add phone-number to lib obj + const lib_phone = phones[n].textContent.trim() + obj["phone"] = lib_phone + //add image to lib obj + const img = imgs[n + 1].src + obj["image"] = img + //add department to lib obj + const department = [] + lib_dp = time_of_dp[n].textContent.trim() + list_dp = lib_dp.split("\n") + //first line : date + //after : openning time for each department + const date = list_dp[0].split('\t') + obj["start_date"] = date[0].split("-")[0] + const num_dp = list_dp.length - 1 + for (let i = 0; i < num_dp; i++) { + var dp_obj = new Object(); + dp_info = list_dp[i + 1].split('\t') + dp_obj["department_name"] = dp_info[0] + + //console.log(list_dp[i+1].split('\t')); + //dp_open=dp_info[1].split(" ") + //dp_obj["dp_info"]=dp_info[2] + dp_open_time = [] + const open_day = dp_info.length - 1 + for (let j = 0; j < open_day; j++) { + var dp_time_obj = new Object(); + dp_time_obj["dp_open_time"] = dp_info[j + 1] + dp_time_obj["date"] = date[j + 1] + dp_open_time.push(dp_time_obj); + } + dp_obj["time"] = dp_open_time + department.push(dp_obj); + } + obj["department"] = department + data.push(obj); + } + + + console.log(data); + + var numDone = 0; + + data.forEach(obj => { + const params = { + TableName: "lib_hours", + Key: { + "name": obj["name"] + }, + + UpdateExpression: "set #location = :lo, #phone = :ph, #image = :im, #start_date = :st, #department = :dp", + + ExpressionAttributeNames: { + "#location": "location", + "#phone": "phone" , + "#image": "image", + "#start_date": "start_date", + "#department": "department", + }, + + ExpressionAttributeValues: { + ":lo": obj["location"], + ":ph": obj["phone"], + ":im": obj["image"], + ":st": obj["start_date"], + ":dp": obj["department"] + } + } + + docClient.update(params, function(err, data) { + if (err) console.log(err); + + numDone += 1; + + if(numDone == data.length){ + return; + } + }) + }) + } + + //If there is an error, write to console and exit + catch (err) { + console.error(err); + return; + } + +} +// test(); diff --git a/libHours/package-lock.json b/libHours/package-lock.json new file mode 100644 index 0000000..a8ffd11 --- /dev/null +++ b/libHours/package-lock.json @@ -0,0 +1,825 @@ +{ + "name": "libhoursscraper", + "version": "1.0.0", + "lockfileVersion": 1, + "requires": true, + "dependencies": { + "abab": { + "version": "2.0.0", + "resolved": "https://registry.npmjs.org/abab/-/abab-2.0.0.tgz", + "integrity": 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+ "author": "", + "license": "ISC", + "dependencies": { + "aws-sdk": "^2.464.0", + "bluebird": "^3.5.5", + "jsdom": "^15.1.1", + "request-promise": "^4.2.4" + } +} diff --git a/libinfo-scraper.py b/libinfo-scraper.py deleted file mode 100644 index dde6043..0000000 --- a/libinfo-scraper.py +++ /dev/null @@ -1,151 +0,0 @@ -import requests -import psycopg2 -import config -from bs4 import BeautifulSoup - -""" -This module scrapes the UCLA Library Hours from the web. -URL: https://www.library.ucla.edu/hours. - -Output format: -{ - "name":"Arts Library", - "location":" 1400 Public Affairs Building, Los Angeles, CA 90095-1392", - "phone":"(310) 206-5425", - "image":"https://www.library.ucla.edu/sites/default/files/styles/thumbnail_large/public/location_map_images/map_arts.png?itok=0LT3XP_5", - "department": - [ - { - "department_name":"Arts Library", - "time": - [ - {"dp_open_time":"1pm - 5pm","date":"Su 17"}, - {"dp_open_time":"9am - 5pm","date":"M 18"}, - {"dp_open_time":"8am - 9pm","date":"Tu 19"}, - {"dp_open_time":"8am - 9pm","date":"W 20"}, - {"dp_open_time":"8am - 9pm","date":"Th 21"}, - {"dp_open_time":"8am - 5pm","date":"F 22"}, - {"dp_open_time":"1pm - 5pm","date":"Sa 23"} - ] - }, - { - "department_name":"CLICC Laptop & iPad Lending (Arts Library)", - "time": - [ - {"dp_open_time":"1pm - 4:30pm","date":"Su 17"}, - {"dp_open_time":"9am - 4:30pm","date":"M 18"}, - {"dp_open_time":"8am - 8:30pm","date":"Tu 19"}, - {"dp_open_time":"8am - 8:30pm","date":"W 20"}, - {"dp_open_time":"8am - 8:30pm","date":"Th 21"}, - {"dp_open_time":"8am - 4:30pm","date":"F 22"}, - {"dp_open_time":"1pm - 4:30pm","date":"Sa 23"} - ] - }, - { - "department_name":"Reference Desk", - "time": - [ - {"dp_open_time":"Closed","date":"Su 17"}, - {"dp_open_time":"Closed","date":"M 18"}, - {"dp_open_time":"11am - 4pm","date":"Tu 19"}, - {"dp_open_time":"11am - 4pm","date":"W 20"}, - {"dp_open_time":"11am - 4pm","date":"Th 21"}, - {"dp_open_time":"11am - 4pm","date":"F 22"}, - {"dp_open_time":"Closed","date":"Sa 23"}] - } - ] -} -""" - - -""" -Database schema: - -CREATE TABLE libraries ( - name text PRIMARY KEY, - location text, - phone text); - -CREATE TABLE library_hours ( - library_name text, - dep_name text, - date text, - times text, - FOREIGN KEY (library_name) REFERENCES libraries(name), - PRIMARY KEY (library_name, dep_name)); -""" - -def get_lib_info(): - - # get HTML data - url = 'https://www.library.ucla.edu/hours' - response = requests.get(url) - if response.status_code != 200: - print("ERROR: Could not connect to https://www.library.ucla.edu/hours") - exit() - page = BeautifulSoup(response.content) # Need to specify parser - - # loop through each library - libraries = [] - library_hours = [] - for library in page.find_all('div', {'class': 'views-row'}): - - # extract library name, location, phone, & dates - name = library.find('div', {'class': 'pane-node-title'}).find('a').text - location = library.find('span', {'class': 'location__address-text'}).text.replace('\n', ' ').replace('\r', ' ').replace(' ', ' ').strip(' ') - phone = library.find('span', {'class':'location__phone-number'}).text - libraries.append((name, location, phone)) - - # each library has multiple departments, loop through each department - for department in library.find('tbody').find_all('tr'): - - # extract department name and their hours - table = department.find_all('td') - dep_name = table[0].text.replace('\n', ' ').replace('\r', ' ').replace(' ', ' ').strip(' ') - for day in table[1:]: - date = day.get('data-label') - hours = day.text - library_hours.append((name, dep_name, date, hours)) - - return libraries, library_hours - -def main(event=None, lambda_context=None): - # Print trigger event - print("Triggered by:", event) - - # Get updated library info - libraries, library_hours = get_lib_info() - - # Connect to database and insert data - try: - conn = psycopg2.connect(host=config.host, - port=config.port, - database=config.database, - user=config.user, - password=config.password) - curr = conn.cursor() - print("Connected to database.") - - # Remove old library data - curr.execute("TRUNCATE libraries, library_hours CASCADE;") - - # Insert new library data - sql1 = "INSERT INTO libraries(name, location, phone) VALUES (%s, %s, %s);" - sql2 = "INSERT INTO library_hours(library_name, dep_name, date, times) VALUES (%s, %s, %s, %s);" - curr.executemany(sql1, libraries) - curr.executemany(sql2, library_hours) - - # Commit & close database - conn.commit() - print("Updated data in database.") - curr.close() - except (Exception, psycopg2.DatabaseError) as error: - print("ERROR: ", error) - finally: - if conn is not None: - conn.close() - print('Database connection closed.') - - -if __name__ == '__main__': - main() \ No newline at end of file diff --git a/librarystudyrooms-scraper.js b/librarystudyrooms-scraper.js deleted file mode 100644 index fa2221c..0000000 --- a/librarystudyrooms-scraper.js +++ /dev/null @@ -1,109 +0,0 @@ -const puppeteer = require('puppeteer'); -const request = require('request'); - -/* -JSON Format -{ - "Building Name": "Powell Library" - "Room Number": "Group Study Room F" - "Capacity": 6 - "Date": "February 5, 2019" - "Day": "Tuesday" - "Start Time": "1:00PM" -} -*/ - -(async function main() { - - try { - - const browser = await puppeteer.launch(/*{headless:false}*/); - const [page] = await browser.pages(); - //Url to visit - await page.goto('http://calendar.library.ucla.edu/allspaces'); - - const result = await page.evaluate(async () => { - //Wait for webpage to load (may need to change this 2000 ms) - await new Promise((resolve) => setTimeout(resolve, 1500)); - const rooms = document.querySelectorAll('.s-lc-eq-avail'); - //Save length to prevent function call overhead in for loop - const num_rooms = rooms.length; - //Empty array to append JSON objects to - const data = []; - - for (let n = 0; n < num_rooms; n++) { - var obj = new Object(); - //Get title attribute from Anchor html elemet - const title = rooms[n].getAttribute('title'); - //Split by commas - var splitByCommas = title.split(","); - //Split first element of splitByCommas array by spaces - var timeAndDay = splitByCommas[0].split(" "); - //Split third element of splitByCommas array by dashes - var yearAndRoom = splitByCommas[2].split("-"); - var room = yearAndRoom[1].split(" "); - room = room[room.length-1]; - //data.push(room); - - //Specific study room numbers for Powell - if (room == 'A' || room == 'B' || room == 'C' || - room == 'D'|| room == 'E' || room == 'F') - { - obj["Building Name"] = "Powell Library"; - obj["Room"] = yearAndRoom[1].trim(); - obj["Capacity"] = 8; - obj["Date"] = splitByCommas[1].trim() + yearAndRoom[0].trimRight(); - obj["Day"] = timeAndDay[1].trim(); - obj["Start Time"] = timeAndDay[0].trim(); - } - - //Specific room numbers for YRL study rooms - else if(room == 'G01'|| room == 'G02' || room == 'G03' || - room == 'G04'|| room == 'G05' || room == 'G06' || - room == 'G07' || room == 'G08' || room == 'G09'|| - room == 'G10' || room == 'G11' || room == 'G12' || - room == 'G13' || room == 'G14'|| room == 'G15') - { - obj["Building Name"] = "Young Research Library"; - obj["Room"] = yearAndRoom[1].trim(); - obj["Capacity"] = 8; - obj["Date"] = splitByCommas[1].trim() + yearAndRoom[0].trimRight(); - obj["Day"] = timeAndDay[1].trim(); - obj["Start Time"] = timeAndDay[0].trim(); - } - - //Everything else must be a study pod in YRL - else { - obj["Building Name"] = "Young Research Library"; - obj["Room"] = yearAndRoom[1].trim(); - obj["Capacity"] = 6; - obj["Date"] = splitByCommas[1].trim() + yearAndRoom[0].trimRight(); - obj["Day"] = timeAndDay[1].trim(); - obj["Start Time"] = timeAndDay[0].trim(); - } - - //Add to data array*/ - data.push(obj); - } - - return data; - }); - - // for (let i = 0; i < result.length; i++) { - request.post({ url: "http://studysmart-env-2.dqiv29pdi2.us-east-1.elasticbeanstalk.com/librooms", headers: { 'content-type': 'application/json' }, body: JSON.stringify(result) }, function (err, response, body) { - console.log(response.body) - new Promise((resolve) => setTimeout(resolve, 10000)); - }) - // } - - console.log(result); - await browser.close(); - } - - //If there is an error, write to console and exit - catch (err) { - console.error(err); - return; - } - -})(); \ No newline at end of file diff --git a/librooms-scraper/__MACOSX/._index.js b/librooms-scraper/__MACOSX/._index.js new file mode 100644 index 0000000..58ea31b Binary files /dev/null and b/librooms-scraper/__MACOSX/._index.js differ diff --git a/librooms-scraper/__MACOSX/._package.json b/librooms-scraper/__MACOSX/._package.json new file mode 100644 index 0000000..31b7b12 Binary files /dev/null and b/librooms-scraper/__MACOSX/._package.json differ diff --git a/librooms-scraper/__MACOSX/._test.js b/librooms-scraper/__MACOSX/._test.js new file mode 100644 index 0000000..efe84a4 Binary files /dev/null and b/librooms-scraper/__MACOSX/._test.js differ diff --git a/librooms-scraper/index.js b/librooms-scraper/index.js new file mode 100644 index 0000000..ae2d2f4 --- /dev/null +++ b/librooms-scraper/index.js @@ -0,0 +1,468 @@ +var request = require("request"); +const moment = require("moment-timezone"); +var AWS = require("aws-sdk"); +var Promise = require("bluebird"); +var rp = require("request-promise"); +AWS.config.update({ region: "us-east-1" }); +var docClient = new AWS.DynamoDB.DocumentClient(); + +exports.handler = async (event) => { + + var now = moment().tz("America/Los_Angeles"); + const formatString = "YYYY-MM-DD"; + var todayString = now.format(formatString); + now.add(5, "days"); + var fiveDaysLaterString = now.format(formatString); + var yrlOptions = { + method: "POST", + url: "http://calendar.library.ucla.edu/spaces/availability/grid", //TODO: change to https + headers: { + "cache-control": "no-cache", + Referer: "http://calendar.library.ucla.edu/allspaces" + }, + form: { + lid: "5567", + gid: "0", + eid: "-1", + start: todayString, + end: fiveDaysLaterString + }, + json: true + }; + + var powellOptions = { + method: "POST", + url: "http://calendar.library.ucla.edu/spaces/availability/grid", //TODO: change to https + headers: { + "cache-control": "no-cache", + Referer: "http://calendar.library.ucla.edu/allspaces" + }, + form: { + lid: "4361", + gid: "0", + eid: "-1", + start: todayString, + end: fiveDaysLaterString + }, + json: true + }; + + var powellInformation = await rp(powellOptions); + var yrlInformation = await rp(yrlOptions); + var powellData = []; + var yrlData = []; + for(var i = 0; i < powellInformation.length; i++) + { + if(powellInformation[i]["className"] == "s-lc-eq-checkout") + { + continue; + } + else + { + var duration = 30; + var obj = new Object(); + var dateTime = powellInformation[i]["start"].split(" "); + var roomName; + var roomId = powellInformation[i]["itemId"]; + var randomId = false; + switch (roomId) { + case 29694: + roomName = "Powell Group Study Room A" + break; + case 29695: + roomName = "Powell Group Study Room B" + break; + case 29696: + roomName = "Powell Group Study Room C" + break; + case 29697: + roomName = "Powell Group Study Room D" + break; + case 29698: + roomName = "Powell Group Study Room E" + break; + case 29699: + roomName = "Powell Group Study Room F" + break; + default: + randomId = true; + break + } + if (randomId) { continue; } // there is a random id that falsely becomes Study Room F available + + obj["Building Name"] = "Powell Library"; + obj["Room"] = roomName; + obj["Capacity"] = 8; + obj["Date"] = dateTime[0]; + obj["Start Time"] = dateTime[1]; + if(i+1 != powellInformation.length) + { + var dateTimeFuture = powellInformation[i]["start"].split(" "); + while(powellInformation[i+1]["className"] != "s-lc-eq-checkout" && dateTimeFuture[0] == dateTime[0]) + { + const newDateTimeFuture = powellInformation[i+1]["start"].split(" ") + if (newDateTimeFuture[0] == dateTimeFuture[0]) { + duration += 30; + i++; + dateTimeFuture[0] = newDateTimeFuture[0]; + dateTime[0] = newDateTimeFuture[0]; + + } else if (newDateTimeFuture[0] != dateTimeFuture[0] && newDateTimeFuture[1] == '00:00:00') { + duration += 30; + i++; + dateTimeFuture[0] = newDateTimeFuture[0]; + dateTime[0] = newDateTimeFuture[0]; + + } else { + break; + } + + if(i+1 == powellInformation.length) + break; + } + } + obj["Duration"] = duration.toString(); + var item = { + combined: obj.Room + "," + obj["Building Name"]+ "," + obj.Capacity + ","+ obj.Date+ "," + obj.Day+ "," + obj["Start Time"]+ "," + "30", + room: obj.Room, + building: obj["Building Name"], + capacity: obj.Capacity, + date: obj.Date, + start: obj["Start Time"], + duration: obj.Duration + } + powellData.push(item); + } + } + + + var paramsPowell = { + TableName: "lib_rooms", + KeyConditionExpression: "#bd = :buildingQuery", + ExpressionAttributeNames: { + "#bd": "building", + }, + ExpressionAttributeValues: { + ":buildingQuery": "Powell Library", + }, + IndexName: "building-index", + ReturnConsumedCapacity: "TOTAL" + }; + + compareDatabaseData(paramsPowell, powellData); + + for(var i = 0; i < yrlInformation.length; i++) + { + if(yrlInformation[i]["className"] == "s-lc-eq-checkout") + { + continue; + } + else + { + var duration = 30; + var obj = new Object(); + var dateTime = yrlInformation[i]["start"].split(" "); + var roomName; + var roomId = yrlInformation[i]["itemId"]; + var capacity = 0; + var randomId = false; + if(roomId >= 29703 && roomId <= 29718) + { + capacity = 8 + } + else if(roomId <= 29738 && roomId >= 29719) + { + capacity = 6; + } + switch (roomId) { + case 29703: + roomName = "YRL Group Study Room G01" + break; + case 29704: + roomName = "YRL Group Study Room G02" + break; + case 29705: + roomName = "YRL Group Study Room G03" + break; + case 29706: + roomName = "YRL Group Study Room G04" + break; + case 29707: + roomName = "YRL Group Study Room G05" + break; + case 29708: + roomName = "YRL Group Study Room G06" + break; + case 29709: + roomName = "YRL Group Study Room G07" + break; + case 29710: + roomName = "YRL Group Study Room G08" + break; + case 29712: + roomName = "YRL Group Study Room G09" + break; + case 29713: + roomName = "YRL Group Study Room G10" + break; + case 29714: + roomName = "YRL Group Study Room G11" + break; + case 29715: + roomName = "YRL Group Study Room G12" + break; + case 29716: + roomName = "YRL Group Study Room G13" + break; + case 29717: + roomName = "YRL Group Study Room G14" + break; + case 29718: + roomName = "YRL Group Study Room G15" + break; + case 29719: + roomName = "YRL Collaboration Pod R01" + break; + case 29720: + roomName = "YRL Collaboration Pod R02" + break; + case 29721: + roomName = "YRL Collaboration Pod R03" + break; + case 29722: + roomName = "YRL Collaboration Pod R04" + break; + case 29723: + roomName = "YRL Collaboration Pod R05" + break; + case 29724: + roomName = "YRL Collaboration Pod R06" + break; + case 29725: + roomName = "YRL Collaboration Pod R07" + break; + case 29726: + roomName = "YRL Collaboration Pod R08" + break; + case 29727: + roomName = "YRL Collaboration Pod R09" + break; + case 29728: + roomName = "YRL Collaboration Pod R10" + break; + case 29729: + roomName = "YRL Collaboration Pod R11" + break; + case 29730: + roomName = "YRL Collaboration Pod R12" + break; + case 29731: + roomName = "YRL Collaboration Pod R13" + break; + case 29732: + roomName = "YRL Collaboration Pod R14" + break; + case 29733: + roomName = "YRL Collaboration Pod R15" + break; + case 29734: + roomName = "YRL Collaboration Pod R16" + break; + case 29735: + roomName = "YRL Collaboration Pod R17" + break; + case 29736: + roomName = "YRL Collaboration Pod R18" + break; + case 29737: + roomName = "YRL Collaboration Pod R19" + break; + case 29738: + roomName = "YRL Collaboration Pod R20" + break; + default: + randomId = true; + break; + + } + + if (randomId) { + continue; + } + + obj["Building Name"] = "Young Research Library"; + obj["Room"] = roomName; + obj["Capacity"] = capacity; + obj["Date"] = dateTime[0]; + obj["Start Time"] = dateTime[1]; + if(i+1 != yrlInformation.length) + { + var dateTimeFuture = yrlInformation[i]["start"].split(" "); + while(yrlInformation[i+1]["className"] != "s-lc-eq-checkout" && dateTimeFuture[0] == dateTime[0]) + { + const newDateTimeFuture = yrlInformation[i+1]["start"].split(" ") + if (newDateTimeFuture[0] == dateTimeFuture[0]) { + duration += 30; + i++; + dateTimeFuture[0] = newDateTimeFuture[0]; + dateTime[0] = newDateTimeFuture[0]; + } else if (newDateTimeFuture[0] != dateTimeFuture[0] && newDateTimeFuture[1] == '00:00:00') { + duration += 30; + i++; + dateTimeFuture[0] = newDateTimeFuture[0] + dateTime[0] = newDateTimeFuture[0]; + } else { + break; + } + + if(i+1 == yrlInformation.length) + break; + } + } + obj["Duration"] = duration.toString(); + + var item = { + combined: obj.Room + "," + obj["Building Name"]+ "," + obj.Capacity + ","+ obj.Date+ "," + obj.Day+ "," + obj["Start Time"]+ "," + "30", + room: obj.Room, + building: obj["Building Name"], + capacity: obj.Capacity, + date: obj.Date, + start: obj["Start Time"], + duration: obj.Duration + } + yrlData.push(item); + } + + + } + + var paramsYrl = { + TableName: "lib_rooms", + KeyConditionExpression: "#bd = :buildingQuery", + ExpressionAttributeNames: { + "#bd": "building", + }, + ExpressionAttributeValues: { + ":buildingQuery": "Young Research Library", + }, + IndexName: "building-index", + ReturnConsumedCapacity: "TOTAL" + }; + + compareDatabaseData(paramsYrl, yrlData) + +}; + +function finishRequest(toAdd, toDelete) { + + toAdd.forEach(info => { + var entry = { + TableName: "lib_rooms", + Item: info + }; + + setTimeout( + e => { + docClient.put(e, function(err, data) { + if (err) { + console.log(err); + } + }); + }, + 0, + entry + ); + }); + + toDelete.forEach(info => { + var entry = { + TableName: "lib_rooms", + Key: { combined: info.combined} + }; + + setTimeout( + e => { + docClient.delete(e, function(err, data) { + if (err) { + console.log(err); + } + console.log("successfully deleted item"); + console.log(entry); + }); + }, + 0, + entry + ); + + }); +} + +function sortFunction(a, b) { + if (a.combined < b.combined) return -1; + else return 1; +} + +function compareDatabaseData(params, scrapedData) { + + docClient.query(params, function(err, queryData) { + if (err) { + console.error("Unable to query. Error:", JSON.stringify(err, null, 2)); + } else { + var queryItems = queryData.Items; + + queryItems.sort(sortFunction); + scrapedData.sort(sortFunction); + + console.log("queryItems"); + console.log(queryItems); + console.log("scrapedItems"); + console.log(scrapedData); + + let databaseIndex = 0; + let scrapeIndex = 0; + let databaseLength = queryItems.length; + let scrapeLength = scrapedData.length; + + let toAdd = []; + let toBeDeleted = []; + + while (databaseIndex != databaseLength || scrapeIndex != scrapeLength) { + if (databaseIndex == databaseLength) { + toAdd.push(scrapedData[scrapeIndex]); + scrapeIndex++; + } else if (scrapeIndex == scrapeLength) { + toBeDeleted.push(queryItems[databaseIndex]); + databaseIndex++; + } else if ( + queryItems[databaseIndex].combined == scrapedData[scrapeIndex].combined + ) { + const queryDuration = parseInt(queryItems[databaseIndex].duration, 10); + const scrapedDuration = parseInt(scrapedData[scrapeIndex].duration, 10); + console.log("same:", queryItems[databaseIndex].combined, queryDuration, scrapedDuration); + if (queryDuration == scrapedDuration) { + scrapeIndex++; + databaseIndex++; + } else { + console.log("Remove duplicate, wrong duration") + toBeDeleted.push(queryItems[databaseIndex]); + databaseIndex++; + toAdd.push(scrapedData[scrapeIndex]); + scrapeIndex++; + } + } else if ( + queryItems[databaseIndex].combined > scrapedData[scrapeIndex].combined + ) { + toAdd.push(scrapedData[scrapeIndex]); + scrapeIndex++; + } else if ( + queryItems[databaseIndex].combined < scrapedData[scrapeIndex].combined + ) { + toBeDeleted.push(queryItems[databaseIndex]); + databaseIndex++; + } + } + finishRequest(toAdd, toBeDeleted); + } + }); +} + diff --git a/librooms-scraper/package.json b/librooms-scraper/package.json new file mode 100644 index 0000000..44540a5 --- /dev/null +++ b/librooms-scraper/package.json @@ -0,0 +1,29 @@ +{ + "name": "backend-v2", + "version": "1.0.0", + "description": "", + "main": "index.js", + "scripts": { + "test": "echo \"Error: no test specified\" && exit 1", + "start": "node scheduler.js" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/aseem191/backend-v2.git" + }, + "author": "", + "license": "ISC", + "bugs": { + "url": "https://github.com/aseem191/backend-v2/issues" + }, + "homepage": "https://github.com/aseem191/backend-v2#readme", + "dependencies": { + "aws-sdk": "^2.441.0", + "bluebird": "^3.5.4", + "body-parser": "^1.18.3", + "moment": "^2.24.0", + "moment-timezone": "^0.5.23", + "request": "^2.88.0", + "request-promise": "^4.2.4" + } +} diff --git a/librooms-scraper/source.html b/librooms-scraper/source.html new file mode 100644 index 0000000..13f6588 --- /dev/null +++ b/librooms-scraper/source.html @@ -0,0 +1,2679 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + Space Availability - Calendar - UCLA Library + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ Skip to Main Content + + +
+
+
+
    +
  1. UCLA Library
    2. +
  2. Calendar
    3. +
  3. Space Availability
    4. +
+
+
+ + + +
+
+
+
+

Space Availability

+ + +
+ +
+
+ Please note, due to the amount of data being loaded, this page + can be slow to load. For a faster view, limit your search to a + specific Location. +
+ + + +
+ + + + + + + + +
+
+
+ + +
+ + + + + + + + + + + + diff --git a/librooms-scraper/test.js b/librooms-scraper/test.js new file mode 100644 index 0000000..e1c3409 --- /dev/null +++ b/librooms-scraper/test.js @@ -0,0 +1,351 @@ +var request = require("request"); +const moment = require("moment-timezone"); +var AWS = require("aws-sdk"); +var Promise = require("bluebird"); +var rp = require("request-promise"); +AWS.config.update({ region: "us-east-1" }); +var docClient = new AWS.DynamoDB.DocumentClient(); + +(async function main () { + + var now = moment().tz("America/Los_Angeles"); + const formatString = "YYYY-MM-DD"; + var todayString = now.format(formatString); + now.add(5, "days"); + var fiveDaysLaterString = now.format(formatString); + var yrlOptions = { + method: "POST", + url: "http://calendar.library.ucla.edu/spaces/availability/grid", //TODO: change to https + headers: { + "cache-control": "no-cache", + Referer: "http://calendar.library.ucla.edu/allspaces" + }, + form: { + lid: "5567", + gid: "0", + eid: "-1", + start: todayString, + end: fiveDaysLaterString + }, + json: true + }; + + var powellOptions = { + method: "POST", + url: "http://calendar.library.ucla.edu/spaces/availability/grid", //TODO: change to https + headers: { + "cache-control": "no-cache", + Referer: "http://calendar.library.ucla.edu/allspaces" + }, + form: { + lid: "4361", + gid: "0", + eid: "-1", + start: todayString, + end: fiveDaysLaterString + }, + json: true + }; + + var powellInformation = await rp(powellOptions); + var yrlInformation = await rp(yrlOptions); + var powellData = []; + var yrlData = []; + for(var i = 0; i < powellInformation.length; i++) + { + if(powellInformation[i]["className"] == "s-lc-eq-checkout") + { + continue; + } + else + { + var duration = 30; + var obj = new Object(); + var dateTime = powellInformation[i]["start"].split(" "); + var roomName; + var roomId = powellInformation[i]["itemId"]; + var randomId = false; + switch (roomId) { + case 29694: + roomName = "Powell Group Study Room A" + break; + case 29695: + roomName = "Powell Group Study Room B" + break; + case 29696: + roomName = "Powell Group Study Room C" + break; + case 29697: + roomName = "Powell Group Study Room D" + break; + case 29698: + roomName = "Powell Group Study Room E" + break; + case 29699: + roomName = "Powell Group Study Room F" + break; + default: + randomId = true; + } + if (randomId) { + continue; + } + obj["Building Name"] = "Powell Library"; + obj["Room"] = roomName; + obj["Capacity"] = 8; + obj["Date"] = dateTime[0]; + obj["Start Time"] = dateTime[1]; + if(i+1 != powellInformation.length) + { + var dateTimeFuture = powellInformation[i]["start"].split(" "); + while(powellInformation[i+1]["className"] != "s-lc-eq-checkout" && dateTimeFuture[0] == dateTime[0]) + { + const newDateTimeFuture = powellInformation[i+1]["start"].split(" ") + if (newDateTimeFuture[0] == dateTimeFuture[0]) { + duration += 30; + i++; + dateTimeFuture[0] = newDateTimeFuture[0]; + dateTime[0] = newDateTimeFuture[0]; + + } else if (newDateTimeFuture[0] != dateTimeFuture[0] && newDateTimeFuture[1] == '00:00:00') { + duration += 30; + i++; + dateTimeFuture[0] = newDateTimeFuture[0]; + dateTime[0] = newDateTimeFuture[0]; + + } else { + break; + } + + if(i+1 == powellInformation.length) + break; + } + } + obj["Duration"] = duration.toString(); + var item = { + combined: obj.Room + "," + obj["Building Name"]+ "," + obj.Capacity + ","+ obj.Date+ "," + obj.Day+ "," + obj["Start Time"]+ "," + obj.Duration, + room: obj.Room, + building: obj["Building Name"], + capacity: obj.Capacity, + date: obj.Date, + start: obj["Start Time"], + duration: obj.Duration + } + powellData.push(item); + } + } + + + var paramsPowell = { + TableName: "lib_rooms", + KeyConditionExpression: "#bd = :buildingQuery", + ExpressionAttributeNames: { + "#bd": "building", + }, + ExpressionAttributeValues: { + ":buildingQuery": "Powell Library", + }, + IndexName: "building-index", + ReturnConsumedCapacity: "TOTAL" + }; + +// compareDatabaseData(paramsPowell, powellData); + + for(var i = 0; i < yrlInformation.length; i++) + { + if(yrlInformation[i]["className"] == "s-lc-eq-checkout") + { + continue; + } + else + { + var duration = 30; + var obj = new Object(); + var dateTime = yrlInformation[i]["start"].split(" "); + var roomName; + var roomId = yrlInformation[i]["itemId"]; + var capacity = 0; + var randomId = false + if(roomId >= 29703 && roomId <= 29718) + { + capacity = 8 + } + else if(roomId <= 29738 && roomId >= 29719) + { + capacity = 6; + } + switch (roomId) { + case 29703: + roomName = "YRL Group Study Room G01" + break; + case 29704: + roomName = "YRL Group Study Room G02" + break; + case 29705: + roomName = "YRL Group Study Room G03" + break; + case 29706: + roomName = "YRL Group Study Room G04" + break; + case 29707: + roomName = "YRL Group Study Room G05" + break; + case 29708: + roomName = "YRL Group Study Room G06" + break; + case 29709: + roomName = "YRL Group Study Room G07" + break; + case 29710: + roomName = "YRL Group Study Room G08" + break; + case 29712: + roomName = "YRL Group Study Room G09" + break; + case 29713: + roomName = "YRL Group Study Room G10" + break; + case 29714: + roomName = "YRL Group Study Room G11" + break; + case 29715: + roomName = "YRL Group Study Room G12" + break; + case 29716: + roomName = "YRL Group Study Room G13" + break; + case 29717: + roomName = "YRL Group Study Room G14" + break; + case 29718: + roomName = "YRL Group Study Room G15" + break; + case 29719: + roomName = "YRL Collaboration Pod R01" + break; + case 29720: + roomName = "YRL Collaboration Pod R02" + break; + case 29721: + roomName = "YRL Collaboration Pod R03" + break; + case 29722: + roomName = "YRL Collaboration Pod R04" + break; + case 29723: + roomName = "YRL Collaboration Pod R05" + break; + case 29724: + roomName = "YRL Collaboration Pod R06" + break; + case 29725: + roomName = "YRL Collaboration Pod R07" + break; + case 29726: + roomName = "YRL Collaboration Pod R08" + break; + case 29727: + roomName = "YRL Collaboration Pod R09" + break; + case 29728: + roomName = "YRL Collaboration Pod R10" + break; + case 29729: + roomName = "YRL Collaboration Pod R11" + break; + case 29730: + roomName = "YRL Collaboration Pod R12" + break; + case 29731: + roomName = "YRL Collaboration Pod R13" + break; + case 29732: + roomName = "YRL Collaboration Pod R14" + break; + case 29733: + roomName = "YRL Collaboration Pod R15" + break; + case 29734: + roomName = "YRL Collaboration Pod R16" + break; + case 29735: + roomName = "YRL Collaboration Pod R17" + break; + case 29736: + roomName = "YRL Collaboration Pod R18" + break; + case 29737: + roomName = "YRL Collaboration Pod R19" + break; + case 29738: + roomName = "YRL Collaboration Pod R20" + break; + default: + randomId = true; + break; + + } + if (randomId) { + continue; + } + obj["Building Name"] = "Young Research Library"; + obj["Room"] = roomName; + obj["Capacity"] = capacity; + obj["Date"] = dateTime[0]; + obj["Start Time"] = dateTime[1]; + if(i+1 != yrlInformation.length) + { + var dateTimeFuture = yrlInformation[i]["start"].split(" "); + while(yrlInformation[i+1]["className"] != "s-lc-eq-checkout" && dateTimeFuture[0] == dateTime[0]) + { + const newDateTimeFuture = yrlInformation[i+1]["start"].split(" ") + if (newDateTimeFuture[0] == dateTimeFuture[0]) { + duration += 30; + i++; + dateTimeFuture[0] = newDateTimeFuture[0]; + dateTime[0] = newDateTimeFuture[0]; + } else if (newDateTimeFuture[0] != dateTimeFuture[0] && newDateTimeFuture[1] == '00:00:00') { + duration += 30; + i++; + dateTimeFuture[0] = newDateTimeFuture[0] + dateTime[0] = newDateTimeFuture[0]; + } else { + break; + } + + if(i+1 == yrlInformation.length) + break; + } + } + obj["Duration"] = duration.toString(); + + var item = { + combined: obj.Room + "," + obj["Building Name"]+ "," + obj.Capacity + ","+ obj.Date+ "," + obj.Day+ "," + obj["Start Time"]+ "," + obj.Duration, + room: obj.Room, + building: obj["Building Name"], + capacity: obj.Capacity, + date: obj.Date, + start: obj["Start Time"], + duration: obj.Duration + } + yrlData.push(item); + } + + } + + var paramsYrl = { + TableName: "lib_rooms", + KeyConditionExpression: "#bd = :buildingQuery", + ExpressionAttributeNames: { + "#bd": "building", + }, + ExpressionAttributeValues: { + ":buildingQuery": "Young Research Library", + }, + IndexName: "building-index", + ReturnConsumedCapacity: "TOTAL" + }; + + //compareDatabaseData(paramsYrl, yrlData) + +})(); \ No newline at end of file diff --git a/package-lock.json b/package-lock.json deleted file mode 100644 index 0bf3f66..0000000 --- a/package-lock.json +++ /dev/null @@ -1,643 +0,0 @@ -{ - "requires": true, - "lockfileVersion": 1, - "dependencies": { - "agent-base": { - "version": "4.2.1", - "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz", - "integrity": "sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==", - "requires": { - 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(max 4 people)", - "Time": "11:00pm-midnight on Sun, Mar 03", - "Link": "https://www.orl.ucla.edu/reserve?type=sproulstudy&duration=60&date=2019-03-03&roomid=3584&start=1551682800&stop=1551686400" -} -*/ -async function postRequest(obj) { - request.post({ url: "http://studysmart-env-2.dqiv29pdi2.us-east-1.elasticbeanstalk.com/studyinfo", headers: { 'content-type': 'application/json' }, body: JSON.stringify(obj) }, function (err, response, body) { - console.log(response.body) - new Promise((resolve) => setTimeout(resolve, 10000)); - //console.log(JSON.stringify(response.body)) - }) -} - -module.exports = { - scrape: async function () { - try { - const browser = await puppeteer.launch({headless: false}); - const [page] = await browser.pages(); - - await page.goto('https://reslife.ucla.edu/reserve'); - - const result = await page.evaluate(async () => { - const list_rooms = document.querySelectorAll('.reserve-grid .col-md-4 input').length; - const data1 = []; - for (let n = 0; n < list_rooms; n++) { - const room = document.querySelectorAll('.reserve-grid .col-md-4 input').item(n); - room.click(); - await new Promise((resolve) => setTimeout(resolve, 2000)); - const hour1 = document.querySelectorAll('.reserve-grid .col-md-6 input').item(0) - hour1.click(); - await new Promise((resolve) => setTimeout(resolve, 2000)); - const length = document.querySelectorAll('.calendar-available').length; - for (let j = 0; j < 7 && j < length; j++) { - const data = []; - const element = document.querySelectorAll('.calendar-available').item(j); - element.click(); - await new Promise((resolve) => setTimeout(resolve, 2000)); - let columns = document.querySelectorAll('.col-md-6'); - //Get all links so that you can redirect user to registration page directly - let links = document.getElementsByTagName('a'); - let filteredLinks = []; - //Need to filter all links so that we only save the ones with the class mentioned below - for (k = 0; k < links.length; k++) { - if (links[k].getAttribute("class") == "btn btn-sm btn-block btn-default btn-select") { - filteredLinks.push(links[k]); - } - } - //Counter for filtered links - var k = 0; - //Start at 2 because first value is not relevant - //Increment by 2 because every pair of 2 elements gives us "room details" and "time" - for (i = 2; i < columns.length; i += 2) { - //Create JS object and push required elements - var obj = new Object(); - obj["Room Details"] = columns[i].innerText; - obj["Time"] = columns[i + 1].innerText; - obj["Link"] = filteredLinks[k].getAttribute("href"); - k++; - //Push - data.push(obj); - } - data1.push(data) - } - await new Promise((resolve) => setTimeout(resolve, 2000)); - const hour2 = document.querySelectorAll('.reserve-grid .col-md-6 input').item(1) - hour2.click(); - await new Promise((resolve) => setTimeout(resolve, 2000)); - const length2 = document.querySelectorAll('.calendar-available').length; - for (let j = 0; j < 7 && j < length2; j++) { - const data = []; - const element = document.querySelectorAll('.calendar-available').item(j); - element.click(); - await new Promise((resolve) => setTimeout(resolve, 2000)); - let columns = document.querySelectorAll('.col-md-6'); - //Get all links so that you can redirect user to registration page directly - let links = document.getElementsByTagName('a'); - let filteredLinks = []; - //Need to filter all links so that we only save the ones with the class mentioned below - for (k = 0; k < links.length; k++) { - if (links[k].getAttribute("class") == "btn btn-sm btn-block btn-default btn-select") { - filteredLinks.push(links[k]); - } - } - //Counter for filtered links - var k = 0; - //Start at 2 because first value is not relevant - //Increment by 2 because every pair of 2 elements gives us "room details" and "time" - for (i = 2; i < columns.length; i += 2) { - //Create JS object and push required elements - var obj = new Object(); - obj["Room Details"] = columns[i].innerText; - obj["Time"] = columns[i + 1].innerText; - obj["Link"] = filteredLinks[k].getAttribute("href"); - k++; - //Push - data.push(obj); - } - data1.push(data) - } - } - return data1; - }); - - for (let i = 0; i < result.length; i++) { - request.post({ url: "http://studysmart-env-2.dqiv29pdi2.us-east-1.elasticbeanstalk.com/studyinfo", headers: { 'content-type': 'application/json' }, body: JSON.stringify(result[i]) }, function (err, response, body) { - console.log(response.body) - new Promise((resolve) => setTimeout(resolve, 10000)); - }) - } - console.log(result); - await browser.close(); - } - catch (err) { - console.error(err); - } -} -} \ No newline at end of file diff --git a/reslife-scraper/package.json b/reslife-scraper/package.json new file mode 100644 index 0000000..7662f0b --- /dev/null +++ b/reslife-scraper/package.json @@ -0,0 +1,30 @@ +{ + "name": "backend-v2", + "version": "1.0.0", + "description": "", + "main": "index.js", + "scripts": { + "test": "echo \"Error: no test specified\" && exit 1", + "start": "node scheduler.js" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/aseem191/backend-v2.git" + }, + "author": "", + "license": "ISC", + "bugs": { + "url": "https://github.com/aseem191/backend-v2/issues" + }, + "homepage": "https://github.com/aseem191/backend-v2#readme", + "dependencies": { + "aws-sdk": "^2.441.0", + "bluebird": "^3.5.4", + "body-parser": "^1.18.3", + "jsdom": "^14.0.0", + "moment": "^2.24.0", + "moment-timezone": "^0.5.23", + "request": "^2.88.0", + "request-promise": "^4.2.4" + } +} diff --git a/reslife-scraper/webscraper.js b/reslife-scraper/webscraper.js new file mode 100644 index 0000000..148f96d --- /dev/null +++ b/reslife-scraper/webscraper.js @@ -0,0 +1,309 @@ +"use strict"; + +const moment = require("moment-timezone"); +const jsdom = require("jsdom"); +const { JSDOM } = jsdom; +var AWS = require("aws-sdk"); +var Promise = require("bluebird"); +var rp = require("request-promise"); + +AWS.config.update({ region: "us-east-1" }); +var docClient = new AWS.DynamoDB.DocumentClient(); +/* +JSON Format { + "Room Details": "Sproul Study Room 110E (max 4 people)", + "Time": "11:00pm-midnight on Sun, Mar 03", + "Link": "https://www.orl.ucla.edu/reserve?type=sproulstudy&duration=60&date=2019-03-03&roomid=3584&start=1551682800&stop=1551686400" +} +*/ + +const meetingRooms = [ + "sproulstudy", + "hedrick", + "hedrickstudy", + "hedrickmusic", + "movement", + "music", + "rieber", + "sproulmusic", + "deneve" +]; + +const durations = ["60", "120"]; + +var now = moment().tz("America/Los_Angeles"); +const formatString = "YYYY-MM-DD"; + +let next21DaysStrings = []; + +exports.handler = async event => { + let numSaturdays = 0; + next21DaysStrings = []; + now = moment().tz("America/Los_Angeles"); + for (var i = 0; numSaturdays < 3; i++) { + next21DaysStrings[i] = now.format(formatString); + + if (now.day() == 6) numSaturdays++; + now.add(1, "days"); + } + for (var dayIndex = 0; dayIndex < 7; dayIndex++) { + for ( + var meetingRoomIndex = 0; + meetingRoomIndex < meetingRooms.length; + meetingRoomIndex++ + ) { + for ( + var durationIndex = 0; + durationIndex < durations.length; + durationIndex++ + ) { + var notResolved = true; + var delay = 2000; + while (notResolved) { + try { + var body = await sendRequest( + meetingRoomIndex, + durationIndex, + dayIndex, + delay + ); + scrapeData(body, meetingRoomIndex, durationIndex, dayIndex); //TODO make async so last scrape is not dropped + notResolved = false; + } catch (e) { + console.log(e); + delay *= 2; + } + } + } + } + } +}; + +function finishRequest(toAdd, toDelete) { + console.log("to add: "); + console.log(toAdd); + console.log("to delete: "); + console.log(toDelete); + + toAdd.forEach(itemValue => { + let params = { + TableName: "study_info", + Item: itemValue + }; + + docClient.put(params, function(err, data) { + if (err) { + //throw err; + console.log("error"); + } + console.log("successfully put item"); + console.log(params); + }); + }); + + toDelete.forEach(itemValue => { + let params = { + TableName: "study_info", + Key: { link: itemValue.link } + }; + + docClient.delete(params, function(err, data) { + if (err) { + //throw err; + console.log("error"); + } + console.log("successfully deleted item"); + console.log(params); + }); + + itemValue.deletedTime = moment() + .tz("America/Los_Angeles") + .format(); + + params = { + TableName: "deleted_study_info", + Item: itemValue + }; + + docClient.put(params, function(err, data) { + if (err) { + //throw err; + console.log("error"); + } + console.log(params); + }); + }); +} + +function sortFunction(a, b) { + if (a.link < b.link) return -1; + else return 1; +} + +function compareDatabaseData(params, scrapedData) { + docClient.query(params, function(err, queryData) { + if (err) { + console.error("Unable to query. Error:", JSON.stringify(err, null, 2)); + } else { + var queryItems = queryData.Items; + + queryItems.sort(sortFunction); + scrapedData.sort(sortFunction); + + console.log("queryItems"); + console.log(queryItems); + + let databaseIndex = 0; + let scrapeIndex = 0; + let databaseLength = queryItems.length; + let scrapeLength = scrapedData.length; + + let toAdd = []; + let toBeDeleted = []; + + while (databaseIndex != databaseLength || scrapeIndex != scrapeLength) { + if (databaseIndex == databaseLength) { + toAdd.push(scrapedData[scrapeIndex]); + scrapeIndex++; + } else if (scrapeIndex == scrapeLength) { + toBeDeleted.push(queryItems[databaseIndex]); + databaseIndex++; + } else if ( + queryItems[databaseIndex].link == scrapedData[scrapeIndex].link + ) { + scrapeIndex++; + databaseIndex++; + } else if ( + queryItems[databaseIndex].link > scrapedData[scrapeIndex].link + ) { + toAdd.push(scrapedData[scrapeIndex]); + scrapeIndex++; + } else if ( + queryItems[databaseIndex].link < scrapedData[scrapeIndex].link + ) { + toBeDeleted.push(queryItems[databaseIndex]); + databaseIndex++; + } + } + + finishRequest(toAdd, toBeDeleted); + } + }); +} + +async function sendRequest(meetingRoomIndex, durationIndex, dayIndex, delay) { + let options = { + method: "GET", + url: "http://reslife.ucla.edu/reserve", + qs: { + type: meetingRooms[meetingRoomIndex], + duration: durations[durationIndex], + date: next21DaysStrings[dayIndex], + partial: "" + } + //timeout: 20000, + }; + console.log(delay); + let a = new Promise(function(resolve, reject) { + setTimeout(() => resolve("done"), delay); + }); + await a; + console.log("sending request"); + console.log({ + type: meetingRooms[meetingRoomIndex], + duration: durations[durationIndex], + date: next21DaysStrings[dayIndex] + }); + return rp(options); +} + +function scrapeData(body, meetingRoomIndex, durationIndex, dayIndex) { + const dom = new JSDOM(body); + + let data = []; + let columns = dom.window.document.querySelectorAll(".col-md-6"); + //Get all links so that you can redirect user to registration page directly + let links = dom.window.document.getElementsByTagName("a"); + let filteredLinks = []; + //Need to filter all links so that we only save the ones with the class mentioned below + for (k = 0; k < links.length; k++) { + if ( + links[k].getAttribute("class") == + "btn btn-sm btn-block btn-default btn-select" + ) { + filteredLinks.push(links[k]); + } + } + //Counter for filtered links + var k = 0; + //Start at 2 because first value is not relevant + //Increment by 2 because every pair of 2 elements gives us "room details" and "time" + + for (var i = 2; i < columns.length; i += 2) { + //Create JS object and push required elements + var obj = new Object(); + obj["Room Details"] = columns[i].textContent.trim(); + obj["Time"] = columns[i + 1].textContent.trim(); + obj["Link"] = filteredLinks[k].getAttribute("href"); + k++; + + var splitLink = obj["Link"] + .split("?") + .join("=") + .split("&") + .join("=") + .split("="); + var infoName, infoDate, infoDuration, infoStart; + + for (var linkI = 0; linkI < splitLink.length; linkI++) { + if (splitLink[linkI] == "type") { + infoName = splitLink[linkI + 1]; + } else if (splitLink[linkI] == "date") { + infoDate = splitLink[linkI + 1]; + } else if (splitLink[linkI] == "duration") { + infoDuration = splitLink[linkI + 1]; + } else if (splitLink[linkI] == "start") { + infoStart = splitLink[linkI + 1]; + } + } + + var entry = { + link: obj["Link"], + name: infoName, + date: infoDate, + duration: infoDuration, + start: infoStart, + details: obj["Room Details"], + time: obj["Time"] + }; + + data.push(entry); + } + + var params = { + TableName: "study_info", + KeyConditionExpression: "#dt = :dateQuery AND #nm = :nameQuery", + FilterExpression: "#dur = :durationFilter", + ExpressionAttributeNames: { + "#dt": "date", + "#nm": "name", + "#dur": "duration" + }, + ExpressionAttributeValues: { + ":dateQuery": next21DaysStrings[dayIndex], + ":nameQuery": meetingRooms[meetingRoomIndex], + ":durationFilter": durations[durationIndex] + }, + IndexName: "date-name-index", + ReturnConsumedCapacity: "TOTAL" + }; + console.log("successfully scraped"); + console.log({ + type: meetingRooms[meetingRoomIndex], + duration: durations[durationIndex], + date: next21DaysStrings[dayIndex] + }); + console.log(data); + + compareDatabaseData(params, data); +} diff --git a/scheduler.js b/scheduler.js deleted file mode 100644 index 5553dce..0000000 --- a/scheduler.js +++ /dev/null @@ -1,24 +0,0 @@ -var lib_info_scraper = require("./libraryinfo-scraper"); -var reslife_scraper = require("./reslife-scraper"); - -var min_to_ms = 60000; -var reslife_scraper_interval = 5 * min_to_ms; -var lib_info_scraper_interval = 10080 * min_to_ms -// console.log("I am doing my 5 minutes check"); - -setInterval(function () { - console.log("I am doing my 1 week check"); - lib_info_scraper.scrape(); - //do your stuff here -}, lib_info_scraper_interval); - -setInterval(function () { - console.log("I am doing my 5 minutes check"); - reslife_scraper.scrape(); - // do your stuff here -}, reslife_scraper_interval); - -//setInterval(function () { -// console.log("I am doing my 10 minutes check"); -// // do your stuff here -// }, the_interval * 2); \ No newline at end of file