packtpub-crawler

Download FREE eBook every day from www.packtpub.com

This crawler automates the following step:

• access to private account
• claim the daily free eBook
• parse title, description and useful information
• download favorite format .pdf .epub .mobi
• download source code and book cover
• upload files to Google Drive
• notify via email
• schedule daily job on Heroku

How to

Default command

# upload pdf to drive and notify via email
python script/spider.py -c config/prod.cfg -u drive -n

Other options

# download all format
python script/spider.py --config config/prod.cfg --all

# download only one format: pdf|epub|mobi
python script/spider.py --config config/prod.cfg --type pdf

# download also additional material: source code (if exists) and book cover
python script/spider.py --config config/prod.cfg -t pdf --extras
# equivalent (default is pdf)
python script/spider.py -c config/prod.cfg -e

# download and then upload to Drive (given the download url anyone can download it)
python script/spider.py -c config/prod.cfg -t epub --upload drive
python script/spider.py --config config/prod.cfg --all --extras --upload drive

Basic setup

Before you start you should

• Verify that your currently installed version of Python is 2.x with python --version
• Clone the repository git clone https://github.com/niqdev/packtpub-crawler.git
• Install all the dependencies (you might need sudo privilege) pip install -r requirements.txt
• Create a config file cp config/prod_example.cfg config/prod.cfg
• Change your Packtpub credentials in the config file

[credential]
credential.email=PACKTPUB_EMAIL
credential.password=PACKTPUB_PASSWORD

Now you should be able to claim and download your first eBook

python script/spider.py --config config/prod.cfg

Upload setup

From documentation, Drive API requires OAuth2.0 for authentication, so to upload files you should:

• Go to Google APIs Console and create a new Drive project named PacktpubDrive
• On API manager > Overview menu
  • Enable Google Drive API
• On API manager > Credentials menu
  • In OAuth consent screen tab set PacktpubDrive as the product name shown to users
  • In Credentials tab create credentials of type OAuth client ID and choose Application type Other named PacktpubDriveCredentials
• Click Download JSON and save the file config/client_secrets.json
• Change your Drive credentials in the config file

[drive]
...
drive.client_secrets=config/client_secrets.json
[email protected]

Now you should be able to upload to Drive your eBook

python script/spider.py --config config/prod.cfg --upload drive

Only the first time you will be prompted to login in a browser which has javascript enabled (no text-based browser) to generate config/auth_token.json. You should also copy and paste in the config the FOLDER_ID, otherwise every time a new folder with the same name will be created.

[drive]
...
drive.default_folder=packtpub
drive.upload_folder=FOLDER_ID

Documentation: OAuth, Quickstart, example and permissions

Notification setup

To send a notification via email using Gmail you should:

• Allow "less secure apps" and "DisplayUnlockCaptcha" on your account
• Troubleshoot sign-in problems and examples
• Change your Gmail credentials in the config file

[notify]
...
[email protected]
notify.password=EMAIL_PASSWORD
[email protected]
[email protected],[email protected]

Now you should be able to notify your accounts

python script/spider.py --config config/prod.cfg --upload drive --notify

Heroku setup

Create a new branch

git checkout -b heroku-scheduler

Update the .gitignore and commit your changes

# remove
config/prod.cfg
config/client_secrets.json
config/auth_token.json
# add
dev/
config/dev.cfg
config/prod_example.cfg

Create, config and deploy the scheduler

heroku login
# create a new app
heroku create APP_NAME
# or if you already have an existing app
heroku git:remote -a APP_NAME

# deploy your app
git push -u heroku heroku-scheduler:master
heroku ps:scale clock=1

# useful commands
heroku ps
heroku logs --ps clock.1
heroku logs --tail
heroku run bash

Update script/scheduler.py with your own preferences.

More info about Heroku Scheduler, Clock Processes, Add-on and APScheduler

Cron setup

TODO

Development (only for spidering)

Run a simple static server with

node dev/server.js

and test the crawler with

python script/spider.py --dev --config config/dev.cfg --all

Disclaimer

This project is just a Proof of Concept and not intended for any illegal usage. I'm not responsible for any damage or abuse, use it at your own risk.