Metadata-Version: 2.1
Name: exoskeleton
Version: 1.2.3
Summary: A library to create a bot / spider / crawler.
Home-page: https://github.com/RuedigerVoigt/exoskeleton
Author: Rüdiger Voigt
Author-email: projects@ruediger-voigt.eu
License: UNKNOWN
Description: # Exoskeleton
        
        ![Build](https://github.com/RuedigerVoigt/exoskeleton/workflows/Build/badge.svg)
        ![System Test](https://github.com/RuedigerVoigt/exoskeleton/workflows/System%20Test/badge.svg)
        ![Supported Python Versions](https://img.shields.io/pypi/pyversions/exoskeleton)
        ![Last commit](https://img.shields.io/github/last-commit/RuedigerVoigt/exoskeleton)
        ![pypi version](https://img.shields.io/pypi/v/exoskeleton)
        [![Downloads](https://pepy.tech/badge/exoskeleton)](https://pepy.tech/project/exoskeleton)
        
        For my dissertation I downloaded hundreds of thousands of documents and feed them into a machine learning pipeline. Using a high-speed-connection is helpful but carries the risk to run an involuntary denial-of-service attack on the servers that provide those documents. This creates a need for a crawler / scraper that avoids too high loads on the connection and instead runs permanently and fault tolerant to ultimately download all files.
        
        Exoskeleton is a python framework that aims to help you build a similar bot. Main functionalities are:
        * Managing a download queue within a MariaDB database.
        * Avoid processing the same URL more than once.
        * Working through that queue by either
            * downloading files to disk,
            * storing the page source code into a database table,
            * storing the page text,
            * or making PDF-copies of webpages.
        * Managing already downloaded files:
            * Storing multiple versions of a specific file.
            * Assigning labels to downloads, so they can be found and grouped easily.
        * Sending progress reports to the admin.
        
        **[Exoskeleton has an extensive documentation.](https://github.com/RuedigerVoigt/exoskeleton/tree/master/documentation "Learn about using exoskeleton")**
        
        
        Two other python libraries were created as part of this project:
        * [userprovided](https://github.com/RuedigerVoigt/userprovided/ "Code and documentation for userprovided") : check user input for validity and plausibility / covert input into better formats
        * [bote](https://github.com/RuedigerVoigt/bote/ "Code and documentation for bote") : send messages (currently via a local or remote SMTP server)
        
        ## Example
        
        ```python
        #!/usr/bin/env python3
        # -*- coding: utf-8 -*-
        import logging
        
        import exoskeleton
        
        logging.basicConfig(level=logging.DEBUG)
        
        # Create a bot
        # exoskeleton makes reasonable assumptions about
        # parameters left out, like:
        # - host = localhost
        # - port = 3306 (MariaDB standard)
        # - ...
        exo = exoskeleton.Exoskeleton(
            project_name='Bot',
            database_settings={'database': 'exoskeleton',
                               'username': 'exoskeleton',
                               'passphrase': ''},
            # True, to stop after the queue is empty, Otherwise it will
            # look consistently for new tasks in the queue:
            bot_behavior={'stop_if_queue_empty': True},
            filename_prefix='bot_',
            chrome_name='chromium-browser',
            target_directory='/home/myusername/myBot/'
        )
        
        exo.add_file_download('https://www.ruediger-voigt.eu/examplefile.txt')
        # => Will be saved in the target directory. The filename will be the
        #    chosen prefix followed by the database id and .txt.
        
        exo.add_file_download(
            'https://www.ruediger-voigt.eu/examplefile.txt',
            {'example-label', 'foo'})
        # => Duplicate will be recognized and not added to the queue,
        #    but the labels will be associated with the file in the
        #    database.
        
        
        exo.add_file_download(
            'https://www.ruediger-voigt.eu/file_does_not_exist.pdf')
        # => Nonexistent file: will be marked, but will not stop the bot.
        
        # Save a page's code into the database:
        exo.add_save_page_code('https://www.ruediger-voigt.eu/')
        
        # Use chromium or Google chrome to generate a PDF of the website:
        exo.add_page_to_pdf('https://github.com/RuedigerVoigt/exoskeleton')
        
        # work through the queue:
        exo.process_queue()
        
        ```
        
Platform: UNKNOWN
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Operating System :: OS Independent
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Science/Research
Classifier: Intended Audience :: Developers
Classifier: Topic :: Text Processing :: Markup :: HTML
Classifier: Topic :: Internet :: WWW/HTTP :: Indexing/Search
Requires-Python: >=3.6
Description-Content-Type: text/markdown
