GetFreeGames.py

import requests
import json
import re
import time
from datetime import datetime  
import json
from os import path
from os import remove

###### VARIABLES ######

IPC = "127.0.0.1:1242" #IP of your IPC (default: 127.0.0.1:1242)
saveprogress=True
claimonfind=True

headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36'}
configfile = "progress.json"


###### FUNCTIONS ######

def log(x):
  print('[' + str(datetime.now()) + "] - "+x)

def redeem(key):
  cmd = "addlicense ASF "+str(key)
  log("Running: "+key)
  r = requests.post("http://"+IPC+"/Api/Command" , json=({"Command":cmd})) #Send the games to ASF
  log(json.loads(r.text)["Result"])

def display_time(seconds): #Stole from https://stackoverflow.com/a/24542445
  intervals = (
    ('w', 604800),  # 60 * 60 * 24 * 7
    ('d', 86400),    # 60 * 60 * 24
    ('h', 3600),    # 60 * 60
    ('m', 60),
    ('s', 1),
  )

  result = []
  for name, count in intervals:
    value = seconds // count
    if value:
        seconds -= value * count
        if value == 1:
            name = name.rstrip('s')
        result.append("{}{}".format(value, name))
  return ', '.join(result)

###### START UP ######

if saveprogress: #If the file doesn't exist yet, create it
  if not path.exists(configfile):
    with open(configfile, "w") as f:
      json.dump({"stopped_at":0, "found": []}, f) #create save file

print("Sit back and enjoy while we collect games for you.")

###### LOOP ######

while True:
  new = requests.get("http://api.steampowered.com/ISteamApps/GetAppList/v0002/",headers=headers).text #Request list of all games and their IDs
  apps = json.loads(new)["applist"]["apps"] 
  appIDs = []
  del new
  for a in range(len(apps)):
    appIDs.append(apps[a]["appid"]) #Keep only the game IDs
  del apps
  log("Found all games, now crawling through them to check if any is free..")

  ratelimit = 0 # Counter for the rate limit
  i = 0
  if saveprogress:
    with open(configfile,"r") as f: #Take back where we left
      content = json.loads(f.read())
      i = content["stopped_at"]
      if not claimonfind:
        freeGames = content["found"]

  if i >= len(appIDs):
    i = 0
  for i in range(i,len(appIDs)): #Loop through all app IDs
    ratelimit+=1
    i+=1
    progress = str(i)+"/"+str(len(appIDs)) #done/total
    ETA = display_time(((len(appIDs)-i)/20)*60) # ( ( total apps to go through - apps went through ) / ratelimit ) * 60
    appInfo=requests.get("https://store.steampowered.com/api/appdetails?appids="+str(appIDs[i]),headers=headers) #Get info about the current game from steamAPI
    if appInfo.status_code != 200: #If the server doesn't answer with OK, assume we're being rate limited and wait a minute before requesting again
      log("We're being rate limited! Waiting 60 seconds.. ("+progress+", ETA: "+ETA+" left)")
      ratelimit = 0
      time.sleep(60)
      appInfo=requests.get("https://store.steampowered.com/api/appdetails?appids="+str(appIDs[i]),headers=headers)
    appInfo = appInfo.text
    if "discount_percent" in appInfo:
      s = re.search("discount_percent\":(\d+)",appInfo).group(1)
      if s == "100": #If there is a 100% reduction, keep the game
        package = re.search("packageid\":(\d+)",appInfo).group(1)
        if claimonfind:
          redeem("a/"+package) #Redeem the game as an app
          redeem("s/"+package) #Redeem the game as a sub
        else:
          freeGames.append(package)
        log("Found game "+str(appIDs[i])+'   ') 
    if re.search("packageid\":(\d+)",appInfo):
      print("Searched through "+progress+" titles. Current subID: "+re.search("packageid\":(\d+)",appInfo).group(1)+" ETA:"+ETA+" left.",end="              \r")
    else:
      print("Searched through "+progress+ " titles. Current subID: INVALID ETA:"+ETA+" left.",end="              \r")
    if ratelimit == 20:
      print("Sleeping 60 seconds to avoid being rate limited! ("+progress+", ETA:"+ETA+" left.)",end="              \r")
      ratelimit = 0
      if saveprogress:
        content = ""
        with open(configfile, 'r+') as f:
          content = json.loads(f.read())
          content["stopped_at"] = i
          if not claimonfind:
            content["found"] = freeGames
        remove(configfile)
        with open(configfile,"w") as f:
          json.dump(content, f)
      time.sleep(60)
  if not claimonfind:
    redeem("a/"+",a/".join(freeGames)) #Redeem the games as apps
    redeem("s/"+",s/".join(freeGames)) #Redeem the games as subs
    del freeGames
  if saveprogress:
    remove(configfile)
    with open(configfile, "w") as f:
      json.dump({"stopped_at":0, "found": []}, f)