541 lines
16 KiB
Python
541 lines
16 KiB
Python
# The interactions with the Concept2 logbook API
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# All C2 related functions should be defined here
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# (There is still some stuff defined directly in views.py. Need to
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# move that here.)
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# Python
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import oauth2 as oauth
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import cgi
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import requests
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import requests.auth
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import json
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from django.utils import timezone
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from datetime import datetime
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from datetime import timedelta
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import time
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# Django
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from django.shortcuts import render_to_response
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from django.http import HttpResponseRedirect, HttpResponse,JsonResponse
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from django.conf import settings
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from django.contrib.auth import authenticate, login, logout
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from django.contrib.auth.models import User
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from django.contrib.auth.decorators import login_required
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from rowingdata import rowingdata
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import pandas as pd
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import numpy as np
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from rowers.models import Rower,Workout
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import sys
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import urllib
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from requests import Request, Session
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from rowsandall_app.settings import C2_CLIENT_ID, C2_REDIRECT_URI, C2_CLIENT_SECRET
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# Custom error class - to raise a NoTokenError
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class C2NoTokenError(Exception):
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def __init__(self,value):
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self.value=value
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def __str__(self):
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return repr(self.value)
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# Custom exception handler, returns a 401 HTTP message
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# with exception details in the json data
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def custom_exception_handler(exc,message):
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response = {
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"errors": [
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{
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"code": str(exc),
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"detail": message,
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}
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]
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}
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res = HttpResponse(message)
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res.status_code = 401
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res.json = json.dumps(response)
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return res
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# Check if workout is owned by this user
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def checkworkoutuser(user,workout):
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try:
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r = Rower.objects.get(user=user)
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return (workout.user == r)
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except Rower.DoesNotExist:
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return(False)
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# convert datetime object to seconds
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def makeseconds(t):
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seconds = t.hour*3600.+t.minute*60.+t.second+0.1*int(t.microsecond/1.e5)
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return seconds
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# convert our weight class code to Concept2 weight class code
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def c2wc(weightclass):
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if (weightclass=="lwt"):
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res = "L"
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else:
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res = "H"
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return res
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# Concept2 logbook sends over split data for each interval
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# We use it here to generate a custom summary
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# Some users complained about small differences
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def summaryfromsplitdata(splitdata,data,filename,sep='|'):
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totaldist = data['distance']
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totaltime = data['time']/10.
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spm = data['stroke_rate']
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resttime = data['rest_time']/10.
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restdistance = data['rest_distance']
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try:
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avghr = data['heart_rate']['average']
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except KeyError:
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avghr = 0
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try:
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maxhr = data['heart_rate']['max']
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except KeyError:
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maxhr = 0
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avgpace = 500.*totaltime/totaldist
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restpace = 500.*resttime/restdistance
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velo = totaldist/totaltime
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avgpower = 2.8*velo**(3.0)
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restvelo = restdistance/resttime
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restpower = 2.8*restvelo**(3.0)
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avgdps = totaldist/data['stroke_count']
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from rowingdata import summarystring,workstring,interval_string
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sums = summarystring(totaldist,totaltime,avgpace,spm,avghr,maxhr,
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avgdps,avgpower,readFile=filename,
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separator=sep)
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sums += workstring(totaldist,totaltime,avgpace,spm,avghr,maxhr,
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avgdps,avgpower,separator=sep,symbol='W')
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sums += workstring(restdistance,resttime,restpace,0,0,0,0,restpower,
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separator=sep,
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symbol='R')
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sums += '\nWorkout Details\n'
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sums += '#-{sep}SDist{sep}-Split-{sep}-SPace-{sep}-Pwr-{sep}SPM-{sep}AvgHR{sep}MaxHR{sep}DPS-\n'.format(
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sep=sep
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)
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intervalnr=0
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sa = []
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results = []
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try:
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timebased = data['workout_type'] in ['FixedTimeSplits','FixedTimeInterval']
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except KeyError:
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timebased = False
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for interval in splitdata:
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idist = interval['distance']
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itime = interval['time']/10.
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ipace = 500.*itime/idist
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ispm = interval['stroke_rate']
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try:
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irest_time = interval['rest_time']/10.
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except KeyError:
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irest_time = 0
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try:
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iavghr = interval['heart_rate']['average']
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except KeyError:
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iavghr = 0
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try:
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imaxhr = interval['heart_rate']['average']
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except KeyError:
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imaxhr = 0
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# create interval values
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iarr = [idist,'meters','work']
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resarr = [itime]
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if timebased:
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iarr = [itime,'seconds','work']
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resarr = [idist]
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if irest_time > 0:
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iarr += [irest_time,'seconds','rest']
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try:
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resarr += [interval['rest_distance']]
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except KeyError:
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resarr += [np.nan]
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sa += iarr
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results += resarr
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ivelo = idist/itime
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ipower = 2.8*ivelo**(3.0)
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sums += interval_string(intervalnr,idist,itime,ipace,ispm,
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iavghr,imaxhr,0,ipower,separator=sep)
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intervalnr+=1
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return sums,sa,results
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# Not used now. Could be used to add workout split data to Concept2
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# logbook but needs to be reviewed.
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def createc2workoutdata_as_splits(w):
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filename = w.csvfilename
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row = rowingdata(filename)
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# resize per minute
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df = row.df.groupby(lambda x:x/60).mean()
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averagehr = int(df[' HRCur (bpm)'].mean())
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maxhr = int(df[' HRCur (bpm)'].max())
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# adding diff, trying to see if this is valid
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t = 10*df.ix[:,' ElapsedTime (sec)'].diff().values
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t[0] = t[1]
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d = df.ix[:,' Horizontal (meters)'].diff().values
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d[0] = d[1]
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p = 10*df.ix[:,' Stroke500mPace (sec/500m)'].values
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t = t.astype(int)
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d = d.astype(int)
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p = p.astype(int)
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spm = df[' Cadence (stokes/min)'].astype(int)
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spm[0] = spm[1]
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hr = df[' HRCur (bpm)'].astype(int)
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split_data = []
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for i in range(len(t)):
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thisrecord = {"time":t[i],"distance":d[i],"stroke_rate":spm[i],
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"heart_rate":{
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"average:":hr[i]
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}
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}
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split_data.append(thisrecord)
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try:
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durationstr = datetime.strptime(str(w.duration),"%H:%M:%S.%f")
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except ValueError:
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durationstr = datetime.strptime(str(w.duration),"%H:%M:%S")
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data = {
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"type": w.workouttype,
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"date": w.startdatetime.isoformat(),
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"distance": int(w.distance),
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"time": int(10*makeseconds(durationstr)),
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"timezone": "Etc/UTC",
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"weight_class": c2wc(w.weightcategory),
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"comments": w.notes,
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"heart_rate": {
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"average": averagehr,
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"max": maxhr,
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},
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"splits": split_data,
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}
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return data
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# Create the Data object for the stroke data to be sent to Concept2 logbook
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# API
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def createc2workoutdata(w):
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filename = w.csvfilename
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row = rowingdata(filename)
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averagehr = int(row.df[' HRCur (bpm)'].mean())
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maxhr = int(row.df[' HRCur (bpm)'].max())
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# adding diff, trying to see if this is valid
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t = 10*row.df.ix[:,'TimeStamp (sec)'].values-10*row.df.ix[0,'TimeStamp (sec)']
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t[0] = t[1]
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d = 10*row.df.ix[:,' Horizontal (meters)'].values
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d[0] = d[1]
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p = abs(10*row.df.ix[:,' Stroke500mPace (sec/500m)'].values)
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p = np.clip(p,0,3600)
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t = t.astype(int)
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d = d.astype(int)
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p = p.astype(int)
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spm = row.df[' Cadence (stokes/min)'].astype(int)
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spm[0] = spm[1]
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hr = row.df[' HRCur (bpm)'].astype(int)
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stroke_data = []
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for i in range(len(t)):
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thisrecord = {"t":t[i],"d":d[i],"p":p[i],"spm":spm[i],"hr":hr[i]}
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stroke_data.append(thisrecord)
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try:
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durationstr = datetime.strptime(str(w.duration),"%H:%M:%S.%f")
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except ValueError:
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durationstr = datetime.strptime(str(w.duration),"%H:%M:%S")
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data = {
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"type": w.workouttype,
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"date": w.startdatetime.isoformat(),
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"timezone": "Etc/UTC",
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"distance": int(w.distance),
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"time": int(10*makeseconds(durationstr)),
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"weight_class": c2wc(w.weightcategory),
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"comments": w.notes,
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"heart_rate": {
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"average": averagehr,
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"max": maxhr,
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},
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"stroke_data": stroke_data,
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}
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return data
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# Refresh Concept2 authorization token
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def do_refresh_token(refreshtoken):
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scope = "results:write,user:read"
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client_auth = requests.auth.HTTPBasicAuth(C2_CLIENT_ID, C2_CLIENT_SECRET)
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post_data = {"grant_type": "refresh_token",
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"client_secret": C2_CLIENT_SECRET,
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"client_id":C2_CLIENT_ID,
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"refresh_token": refreshtoken,
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}
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headers = {'user-agent': 'sanderroosendaal'}
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url = "https://log.concept2.com/oauth/access_token"
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s = Session()
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req = Request('POST',url, data=post_data, headers=headers)
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prepped = req.prepare()
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prepped.body+="&scope="
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prepped.body+=scope
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response = s.send(prepped)
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token_json = response.json()
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try:
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thetoken = token_json['access_token']
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expires_in = token_json['expires_in']
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refresh_token = token_json['refresh_token']
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except:
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with open("media/c2errors.log","a") as errorlog:
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errorstring = str(sys.exc_info()[0])
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timestr = time.strftime("%Y%m%d-%H%M%S")
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errorlog.write(timestr+errorstring+"\r\n")
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errorlog.write(str(token_json)+"\r\n")
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thetoken = None
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expires_in = None
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refresh_token = None
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return [thetoken,expires_in,refresh_token]
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# Exchange authorization code for authorization token
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def get_token(code):
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scope = "user:read,results:write"
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client_auth = requests.auth.HTTPBasicAuth(C2_CLIENT_ID, C2_CLIENT_SECRET)
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post_data = {"grant_type": "authorization_code",
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"code": code,
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"redirect_uri": C2_REDIRECT_URI,
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"client_secret": C2_CLIENT_SECRET,
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"client_id":C2_CLIENT_ID,
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}
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headers = {'user-agent': 'sanderroosendaal'}
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url = "https://log.concept2.com/oauth/access_token"
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s = Session()
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req = Request('POST',url, data=post_data, headers=headers)
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prepped = req.prepare()
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prepped.body+="&scope="
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prepped.body+=scope
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response = s.send(prepped)
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token_json = response.json()
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thetoken = token_json['access_token']
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expires_in = token_json['expires_in']
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refresh_token = token_json['refresh_token']
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return [thetoken,expires_in,refresh_token]
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# Make URL for authorization and load it
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def make_authorization_url(request):
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# Generate a random string for the state parameter
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# Save it for use later to prevent xsrf attacks
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from uuid import uuid4
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state = str(uuid4())
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scope = "user:read,results:write"
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params = {"client_id": CLIENT_ID,
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"response_type": "code",
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"redirect_uri": REDIRECT_URI}
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url = "https://log.concept2.com/oauth/authorize?"+ urllib.urlencode(params)
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url += "&scope="+scope
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return HttpResponseRedirect(url)
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# Get workout from C2 ID
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def get_c2_workout(user,c2id):
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r = Rower.objects.get(user=user)
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if (r.c2token == '') or (r.c2token is None):
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s = "Token doesn't exist. Need to authorize"
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return custom_exception_handler(401,s)
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elif (timezone.now()>r.tokenexpirydate):
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s = "Token expired. Needs to refresh."
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return custom_exception_handler(401,s)
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else:
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# ready to fetch. Hurray
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authorizationstring = str('Bearer ' + r.c2token)
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headers = {'Authorization': authorizationstring,
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'user-agent': 'sanderroosendaal',
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'Content-Type': 'application/json'}
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url = "https://log.concept2.com/api/users/me/results/"+str(c2id)
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s = requests.get(url,headers=headers)
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return s
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# Get stroke data belonging to C2 ID
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def get_c2_workout_strokes(user,c2id):
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r = Rower.objects.get(user=user)
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if (r.c2token == '') or (r.c2token is None):
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return custom_exception_handler(401,s)
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s = "Token doesn't exist. Need to authorize"
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elif (timezone.now()>r.tokenexpirydate):
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s = "Token expired. Needs to refresh."
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return custom_exception_handler(401,s)
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else:
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# ready to fetch. Hurray
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authorizationstring = str('Bearer ' + r.c2token)
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headers = {'Authorization': authorizationstring,
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'user-agent': 'sanderroosendaal',
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'Content-Type': 'application/json'}
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url = "https://log.concept2.com/api/users/me/results/"+str(c2id)+"/strokes"
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s = requests.get(url,headers=headers)
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return s
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# Get list of C2 workouts. We load only the first page,
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# assuming that users don't want to import their old workouts
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def get_c2_workout_list(user):
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r = Rower.objects.get(user=user)
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if (r.c2token == '') or (r.c2token is None):
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s = "Token doesn't exist. Need to authorize"
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return custom_exception_handler(401,s)
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elif (timezone.now()>r.tokenexpirydate):
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s = "Token expired. Needs to refresh."
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return custom_exception_handler(401,s)
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else:
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# ready to fetch. Hurray
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authorizationstring = str('Bearer ' + r.c2token)
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headers = {'Authorization': authorizationstring,
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'user-agent': 'sanderroosendaal',
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'Content-Type': 'application/json'}
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url = "https://log.concept2.com/api/users/me/results"
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s = requests.get(url,headers=headers)
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return s
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|
|
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# Get username, having access token.
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# Handy for checking if the API access is working
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def get_username(access_token):
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authorizationstring = str('Bearer ' + access_token)
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headers = {'Authorization': authorizationstring,
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'user-agent': 'sanderroosendaal',
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'Content-Type': 'application/json'}
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import urllib
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url = "https://log.concept2.com/api/users/me"
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response = requests.get(url,headers=headers)
|
|
|
|
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me_json = response.json()
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|
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try:
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res = me_json['data']['username']
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except KeyError:
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res = None
|
|
|
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return res
|
|
|
|
# Get user id, having access token
|
|
# Handy for checking if the API access is working
|
|
def get_userid(access_token):
|
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authorizationstring = str('Bearer ' + access_token)
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|
headers = {'Authorization': authorizationstring,
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'user-agent': 'sanderroosendaal',
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'Content-Type': 'application/json'}
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|
import urllib
|
|
url = "https://log.concept2.com/api/users/me"
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response = requests.get(url,headers=headers)
|
|
|
|
|
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me_json = response.json()
|
|
try:
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res = me_json['data']['id']
|
|
except KeyError:
|
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res = 0
|
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|
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return res
|
|
|
|
# For debugging purposes
|
|
def process_callback(request):
|
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# need error handling
|
|
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code = request.GET['code']
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access_token = get_token(code)
|
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username = get_username(access_token)
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return HttpResponse("got a user name: %s" % username)
|
|
|
|
# Uploading workout
|
|
def workout_c2_upload(user,w):
|
|
response = 'trying C2 upload'
|
|
r = Rower.objects.get(user=user)
|
|
if (r.c2token == '') or (r.c2token is None):
|
|
s = "Token doesn't exist. Need to authorize"
|
|
return custom_exception_handler(401,s)
|
|
elif (timezone.now()>r.tokenexpirydate):
|
|
s = "Token expired. Needs to refresh."
|
|
return custom_exception_handler(401,s)
|
|
else:
|
|
# ready to upload. Hurray
|
|
if (checkworkoutuser(user,w)):
|
|
c2userid = get_userid(r.c2token)
|
|
data = createc2workoutdata(w)
|
|
authorizationstring = str('Bearer ' + r.c2token)
|
|
headers = {'Authorization': authorizationstring,
|
|
'user-agent': 'sanderroosendaal',
|
|
'Content-Type': 'application/json'}
|
|
import urllib
|
|
url = "https://log.concept2.com/api/users/%s/results" % (c2userid)
|
|
response = requests.post(url,headers=headers,data=json.dumps(data))
|
|
if (response.status_code == 201):
|
|
s= json.loads(response.text)
|
|
c2id = s['data']['id']
|
|
w.uploadedtoc2 = c2id
|
|
w.save()
|
|
else:
|
|
response = "You are not authorized to upload this workout"
|
|
|
|
return response
|
|
|
|
# This is token refresh. Looks for tokens in our database, then refreshes
|
|
def rower_c2_token_refresh(user):
|
|
r = Rower.objects.get(user=user)
|
|
res = do_refresh_token(r.c2refreshtoken)
|
|
if res[0]:
|
|
access_token = res[0]
|
|
expires_in = res[1]
|
|
refresh_token = res[2]
|
|
expirydatetime = timezone.now()+timedelta(seconds=expires_in)
|
|
|
|
r = Rower.objects.get(user=user)
|
|
r.c2token = access_token
|
|
r.tokenexpirydate = expirydatetime
|
|
r.c2refreshtoken = refresh_token
|
|
|
|
r.save()
|
|
return r.c2token
|
|
else:
|
|
return None
|
|
|