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Download your daily free Packt Publishing eBookhttps://www.packtpub.com/packt/offers/free-learning

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niqdev/packtpub-crawler

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Download FREE eBook every day fromwww.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 or via scp
  • store data on Firebase
  • notify via email
  • schedule daily job on Heroku or with Docker

Default command

# upload pdf to drive, store data and notify via emailpython script/spider.py -c config/prod.cfg -u drive -s firebase -n

Other options

# download all formatpython script/spider.py --config config/prod.cfg --all# download only one format: pdf|epub|mobipython script/spider.py --config config/prod.cfg --type pdf# download also additional material: source code (if exists) and book coverpython 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 drivepython 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 is2.x withpython --version
  • Clone the repositorygit clone https://github.com/niqdev/packtpub-crawler.git
  • Install all the dependencies (you might needsudo privilege)pip install -r requirements.txt
  • Create aconfig filecp config/prod_example.cfg config/prod.cfg
  • Change your Packtpub credentials in the config file
[credential]credential.email=PACKTPUB_EMAILcredential.password=PACKTPUB_PASSWORD

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

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

Drive

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

  • Go toGoogle APIs Console and create a newDrive project namedPacktpubDrive
  • OnAPI manager > Overview menu
    • Enable Google Drive API
  • OnAPI manager > Credentials menu
    • InOAuth consent screen tab setPacktpubDrive as the product name shown to users
    • InCredentials tab create credentials of typeOAuth client ID and choose Application typeOther namedPacktpubDriveCredentials
  • ClickDownload JSON and save the fileconfig/client_secrets.json
  • Change your Drive credentials in the config file
[drive]...drive.client_secrets=config/client_secrets.jsondrive.gmail=GOOGLE_DRIVE@gmail.com

Now you should be able to upload your eBook to Drive

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 generateconfig/auth_token.json.You should also copy and paste in the config theFOLDER_ID, otherwise every time a new folder with the same name will be created.

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

Documentation:OAuth,Quickstart,example andpermissions

Scp

To upload your eBook viascp on a remote server update the configs

[scp]scp.host=SCP_HOSTscp.user=SCP_USERscp.password=SCP_PASSWORDscp.path=SCP_UPLOAD_PATH

Now you should be able to upload your eBook

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

Note:

  • the destination folderscp.path on the remote server must exists in advance
  • the option--upload scp is incompatible with--store and--notify

Firebase

Create a new Firebaseproject, copy the database secret from your settings

https://console.firebase.google.com/project/PROJECT_NAME/settings/database

and update the configs

[firebase]firebase.database_secret=DATABASE_SECRETfirebase.url=https://PROJECT_NAME.firebaseio.com

Now you should be able to store your eBook details on Firebase

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

Email notification

Tosend a notification via email using Gmail you should:

[notify]...notify.username=EMAIL_USERNAME@gmail.comnotify.password=EMAIL_PASSWORDnotify.from=FROM_EMAIL@gmail.comnotify.to=TO_EMAIL_1@gmail.com,TO_EMAIL_2@gmail.com

Now you should be able to notify your accounts

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

Heroku

Create a new branch

git checkout -b heroku-scheduler

Update the.gitignore and commit your changes

# removeconfig/prod.cfgconfig/client_secrets.jsonconfig/auth_token.json# adddev/config/dev.cfgconfig/prod_example.cfg

Create, config and deploy the scheduler

heroku login# create a new appheroku create APP_NAME# or if you already have an existing appheroku git:remote -a APP_NAME# deploy your appgit push -u heroku heroku-scheduler:masterheroku ps:scale clock=1# useful commandsheroku psheroku logs --ps clock.1heroku logs --tailheroku run bash

Updatescript/scheduler.py with your own preferences.

More info about HerokuScheduler,Clock Processes,Add-on andAPScheduler

Docker

Build your image

docker build -t niqdev/packtpub-crawler:1.4.0 .

Run manually

docker run \  --rm \  --name my-packtpub-crawler \  niqdev/packtpub-crawler:1.4.0 \  python script/spider.py --config config/prod.cfg --upload drive

Run scheduled crawler in background

docker run \  --detach \  --name my-packtpub-crawler \  niqdev/packtpub-crawler:1.4.0# useful commandsdocker exec -i -t my-packtpub-crawler bashdocker logs -f my-packtpub-crawler

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.

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