LineBot for Kaohsiung C-boke

app.py

# encoding: utf-8
from flask import Flask, request, abort

from linebot import (
    LineBotApi, WebhookHandler
)
from linebot.exceptions import (
    InvalidSignatureError
)
from linebot.models import (
    MessageEvent, TextMessage, TextSendMessage, LocationMessage, LocationSendMessage, StickerMessage, StickerSendMessage
)

import random
import datetime
import os

app = Flask(__name__)

handler = WebhookHandler('Your Channel Secret') 
line_bot_api = LineBotApi('Your Channel Access Token') 

@app.route('/')
def index():
    return "<p>Hello World!</p>"

@app.route("/callback", methods=['POST'])
def callback():
    # get X-Line-Signature header value
    signature = request.headers['X-Line-Signature']

    # get request body as text
    body = request.get_data(as_text=True)
    app.logger.info("Request body: " + body)

    # handle webhook body
    try:
        handler.handle(body, signature)
    except InvalidSignatureError:
        abort(400)

    return 'OK'


# ================= 給經緯度時， 機器人區塊 Start  =================
@handler.add(MessageEvent, message=LocationMessage)  # default
def handle_text_message(event):                  # default
    #msg = event.message.text #message from user
    
    from lxml import etree
    from urllib.request import urlopen
    from pandas import DataFrame
    
    def getTable():
        url = 'http://www.c-bike.com.tw/xml/stationlistopendata.aspx'
        response = urlopen(url)
        xml = response.read()
        tree = etree.XML(xml)
    
        #db = [["StationID", "StationNO", "name", "available", "empty", "lat", "lon"]] #list in list
        db = []
        for i in range(0, len(tree[0])):
            StationID = tree[0][i].find('StationID').text
            StationNO = tree[0][i].find('StationNO').text
            name = tree[0][i].find('StationName').text
            available = int(tree[0][i].find('StationNums1').text)
            empty = int(tree[0][i].find('StationNums2').text)
            lat = float(tree[0][i].find('StationLat').text)
            lon = float(tree[0][i].find('StationLon').text)
            print(name)
            db.append([StationID, StationNO, name, available, empty, lat, lon])
        return(db)

    lat = event.message.latitude
    lon = event.message.longitude
    db = DataFrame(getTable(), columns=("StationID", "StationNO", "name", "available", "empty", "lat", "lon"))

    ## 因為赤道和經線 1度大約110 km ，沒有考慮 cos 經度，正負 0.01 度大約正負1公里
    lat_min, lat_max = lat - 0.01, lat + 0.01 
    lon_min, lon_max = lon - 0.01, lon + 0.01
    
    elective = db[(db['lat']>lat_min) & (db['lat']<lat_max) & (db['lon']>lon_min) & (db['lon']<lon_max)]
    elective = elective.assign(distance = lambda x: ((x.lat-lat)**2 + (x.lon-lon)**2)) ##沒有考慮緯度的變形
    elective = elective.sort_values('distance')
    reply = ('您給定的經緯度是%.3f, %.3f\n'%(lon, lat))
    for index, station in elective.iterrows():
        reply = reply + ('%s：空位%d，剩餘車輛%d\n'% (station['name'], station['empty'], station['available']))
    # 針對使用者各種訊息的回覆 Start =========
    line_bot_api.reply_message(
        event.reply_token,
        TextSendMessage(text=reply)
    )

    # 針對使用者各種訊息的回覆 End =========

# ================= 機器人區塊 End =================

# ================= 給文字時，機器人區塊 Start =================
@handler.add(MessageEvent, message=TextMessage)  # default
def handle_text_message(event):                  # default
    msg = event.message.text #message from user
    reply = msg
    # 針對使用者各種訊息的回覆 Start =========
    line_bot_api.reply_message(
        event.reply_token,
        TextSendMessage(text=reply) #應聲蟲一隻 
    )
    # 針對使用者各種訊息的回覆 End =========

# ================= 機器人區塊 End =================

import os
if __name__ == "__main__":
    app.run(host='0.0.0.0',port=os.environ['PORT'])

Procfile

web: python app.py

requirements.txt

line-bot-sdk
flask
lxml
pandas
urllib3==1.13.1

runtime.txt

python-3.5.2