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InternetArchiveBot (IABot)

A Wikipedia bot that fights linkrot.

Contact

What is InternetArchiveBot

IABot is a powerful PHP, framework independent, OAuth bot designed primarily for use for Wikimedia Foundation wikis, per the request of the global communities, by Cyberpower678. It is a global bot that uses wiki-specific functions in an abstract class to run on different wikis with different rules. For maximum flexibility, it features on and off site configuration values that can be altered to suit the operator, and/or the wiki community. Its function is to address many aspects of linkrot. For large sites, it can be set to multi-thread with a specified number of workers to get the job done faster. Each worker analyzes its own page, and reports back to the master with the statistics afterwards.

How it works

IABot has a suite of functions it can do when it analyzes a page. Since the aim is to address link rot as completely as possible, it analyzes links in many ways by:

  • Looking for URLs on the page rather than the DB. This allows the bot to grab how the url is being used, such as detecting if it's used in a cite template, a reference, or if it's a bare link. This allows the bot to intelligently handle sources formatted in various ways, almost like a human.
  • Checking the archives if a link already exists, and if it doesn't request archiving into the Wayback Machine.
  • Looking into the archives at the Wayback Machine to fetch a working copy of the page for a link that is dead, or using archives already being used for a URL on Wikipedia.
  • Checking if untagged dead links are dead or not. This has a false positive rate of 0.1%.
  • Automatically resolving templates that resolve as URLs in citation templates and working from there. The same also applies for templates as access dates.
  • Saving all that information to a DB, which allows for the use of interfaces that can make use of this information, and allows the bot to learn, and improve its services.
  • Convert existing archive URLs to their long form if enabled.
  • Fix improper usages of archive templates, or mis-formatted URLs.

IABot's functions are in several different classes, based on the functions they do. Communication-related functions and wiki configuration values, are stored in the API class. DB related functions in the DB class, miscellaneous core functions in a static Core class, dead link checking functions in a CheckIfDead class, thread engine in Thread class, and the global and wiki-specific parsing functions in an abstract Parser class. While all but the last functions can run uniformly on all wikis, the Parser class requires a class extension due to its abstract nature. The class extensions contain the functions that allow the bot to operate properly on a given wiki, with its given rules. When the bot starts up, it will attempt to load the proper extension of the Parser class and initialize that as its parsing class.

Installation

Using Docker

Using Docker is the quickest and easiest way to install InternetArchiveBot. If you expect to run the bot on a multitude of wikis, it may be better to break up the install to a dedicated execution VM and a dedicated MariaDB VM.

Docker automatically provides IABot with the needed PHP and MariaDB environment, but does not come with Tor support.

The Docker image is preloaded with xDebug. It is recommended to use PHPStorm when developing, or debugging, InternetArchiveBot. PHPStorm comes with Docker support, as well as VCS management, Composer support, and xDebug support.

Manual install

Manually installing offers more flexibility, but is more complicated to set up. This is the recommended method when deploying to a large wikifarm. IABot requires the following to run:

  • PHP 7.2.9 or higher with intl, curl, mysqli, mysqlnd, json, pcntl, and tideways/xhprof (optional)
  • A tor package from HomeBrew, apt, or some other package handler
  • A SQL database (latest MariaDB recommended)
  • Composer
  • A webserver like Apache httpd
  1. Decide on whether or not to run the DB on a separate host
  2. Install PHP with required extensions. You can run php -m to check for installed modules, and php -v to check its version.
  3. You may optionally install a Tor package from your host's package manager. Tor will work right out of the box, if installed, and shouldn't require any further setup.
  4. Install your database server on your desired host
  5. Install your webserver on your host to run IABot
  6. Clone this repo. For easiest setup, if your webserver loads content from /var/www/html, you can copy the contents of the repo to /var/www.
  7. If you opt not to go this route, you may symlink, or move, the html folder of the this repo to the html folder of the webserver.
  8. Create a file html/setpath.php with <?php $path='/path/to/src/folder/';
  9. Run composer install
  10. Copy app/src/deadlink.config.inc.php to app/src/deadlink.config.local.inc.php
  11. Define your configuration values. If you did steps 8 and 9, you need to define $publicHTMLPath as the relative path, relative to the location of the config file, to the html folder of the webserver. Otherwise, you can just leave it as is.
  12. Open a browser to the webserver set up in the previous steps to complete bot setup
  13. When the bot is set up, you can execute the bot by running php deadlink.php

Development

Requirements

  • Docker Compose docker-compose
  • MySQL / MariaDB client mysql

First-time setup

  • Create an account at https://meta.wikimedia.org
  • Copy app/src/deadlink.config.docker.inc.php to app/src/deadlink.config.local.inc.php
  • Add your Wikimedia account name to $interfaceMaster['members'][] in app/src/deadlink.config.local.inc.php;
  • Obtain TWO OAuth consumers at https://meta.wikimedia.org/wiki/Special:OAuthConsumerRegistration/propose
  • First OAuth consumer goes to $oauthKeys['default']['bot'] in app/src/deadlink.config.local.inc.php
    • Set Application name to e.g. "IABot Dev Bot"
    • Set Application description to e.g. "localhost testing"
    • Check ON the checkbox This consumer is for use only by
    • Check ON the following checkboxes in Applicable grants: High-volume editing, Edit existing pages, Edit protected pages, Create, edit, and move pages
    • Agree to the terms and click "Propose"
    • Copy obtained 4 keys to the corresponding entries in $oauthKeys['default']['bot'] and your Wikimedia account name in username
  • Second OAuth consumer goes to $oauthKeys['default']['webappfull'] in app/src/deadlink.config.local.inc.php:
    • Set Application name to e.g. "IABot Dev Web App Full"
    • Set Application description to e.g. "localhost testing"
    • Check OFF the checkbox This consumer is for use only by
    • Set OAuth "callback" URL to http://localhost:8080/oauthcallback.php
    • Check ON the following checkboxes in Applicable grants: High-volume editing, Edit existing pages, Edit protected pages, Create, edit, and move pages
    • Agree to the terms and click "Propose"
    • Copy obtained 2 keys to the corresponding entries in $oauthKeys['default']['webappfull']
  • Run docker-compose build to build the IABot image
  • Run docker-compose up, it will take a few minutes for the containers to come up
  • Run docker-compose exec -T db mysql -uroot -p5yBtFxeedrfupieNk7mp1oWyP8aR91kAp9nO8oSH iabot < first-time.sql
  • Open http://localhost:8080/index.php?page=systemconfig
  • On Login required screen, click "Login to get started."

The bot should now be ready to run 🎉

Troubleshooting

In case you can't import the first-time.sql database or prefer to perform a manual setup, do the following:

  • Open http://localhost:8080, you will be redirected to http://localhost:8080/setup.php
  • Fill in the Configure system globals form
    • Set Disable bot editing to "No"
    • Set User Agent, User Agent to pass to external sites, The bot's task name to IABot
    • Set Enable logging on an external tool to "No"
    • Set Send failure emails when accessing the Wayback Machine fails to "No"
    • Set Web application email to send from to your email
    • Set Complete root URL of this web application to http://localhost:8080/
    • Set Use additional servers to validate if a link is dead to "No"
    • Set Enable performance profiling to "No"
    • Set Default wiki to load to testwiki
    • Set Enable automatic false positive reporting to "No"
    • Set Internet Archive Availability requests throttle to 0
    • Set Disable the interface to "No"
    • Click "Submit"
  • Fill in the Define wiki form
  • On Login required screen, click "Login to get started."
  • On the Define archive templates form, add a template:
    • Click "+"
    • Set Template name to e.g. Webarchive
    • Set Template behavior to "Append template to URL"
    • Set Template syntax to url|1={archiveurl}|date|2={archivetimestamp:automatic}|title={title}
    • Click "Submit"
    • Click the top-level header "IABot Management Interface"
  • Fill in the Configure bot behavior form
    • Set Links to scan to "All external links on an article"
    • Set Scanned links to modify to "All dead links"
    • Set How to handle tagged links to "Treat tagged links as dead"
    • Set Tagging dead citation templates to "Tag with a dead link template"
    • Set Pages to scan to "Scan all mainspace pages"
    • Set Archive versions to "Use archives closest to the access date (applies to newly searched archives)"
    • Set Modify existing archives to "No"
    • Set Leave talk page messages to "No"
    • Set Only leave talk page messages to "No"
    • Set Leave archiving errors on talk pages to "No"
    • Set Leave verbose talk messages to "No"
    • Set Talk message section header to hello
    • Set Talk message to hello
    • Set Talk message only section header to hello
    • Set Talk only message to hello
    • Set Talk message error section header to hello
    • Set Talk error message to hello
    • Set Default used date formats to hello
    • Set Opt-out tags to {{hello}}
    • Set Talk-only tags to {{hello}}
    • Set No-talk tags to {{hello}}
    • Set Paywall tags to {{hello}}
    • Set Reference tags to {{hello}};{{hello}}
    • Set Opt-out tags > Webarchive > @default to {{hello}}
    • Set Dead link tags to {{hello}}
    • Set Template behavior to "Append template to URL"
    • Set Dead link template syntax to blank
    • Set Notify only on domains to blank
    • Set Scan for dead links to "Yes"
    • Set Submit live links to the Wayback Machine to "No"
    • Set Convert archives to long-form format to "Yes"
    • Set Normalize archive URL encoding to "Yes"
    • Set Convert plain links to cite templates to "Yes"
    • Set Edit rate limit to 60 per minute
    • Set Added archive talk-only to hello
    • Set Dead link talk-only to hello
    • Set No dead link talk-only to hello
    • Set Added archive message item to hello
    • Set Modified archive message item to hello
    • Set Fixed source message item to hello
    • Set Dead link message item to hello
    • Set No dead message item to hello
    • Set Default message item to hello
    • Set Archive error item to hello
    • Set Edit summary to hello
    • Set Error message summary to hello
    • Set Message summary to hello
    • Click "Submit"
  • On the Define user groups form, create a new group:
    • Click "+"
    • Set Group name to root
    • Check ON all permission checkboxes in the Inherits flags section
    • Click "Submit"

Debug run

Configuration

As of v2.0, the values on wiki pages for configuring IABot are no longer used. The bot instead is configured with the IABot Management Interface. All global keywords are still used.

If you are running InternetArchiveBot yourself, you can configure it via the on wiki config page and by creating a new deadlink.config.local.inc.php file in the same directory. If someone else is running InternetArchiveBot and you just need to configure it for a particular wiki, you can set up a subpage of the bot's userpage called Dead-links.js and configure it there. For example, https://en.wikipedia.org/wiki/User:InternetArchiveBot/Dead-links.js. The configuration values are explained below:

  • link_scan – Determines what to scan for when analyzing a page. Set to 0 to handle every external URL on the article. Set to 1 to only scan URLs that are inside reference tags.

  • page_scan – Determines what pages to scan when doing it's run. Set to 0 to scan all of the main space. Set to 1 to only scan for pages that have dead link tags.

  • dead_only – Determines what URLs it can touch and/or modify. Set to 0 to allow the bot to modify all links. Set to 1 to only allow the bot to modify URLs tagged as dead. Set to 2 allow the bot to modify all URLs tagged as dead and and all dead URLs that are not tagged.

  • tag_override – Tells the bot to override its own judgement regarding URLs. If a human tags a URL as dead when the bot determines it alive, setting this to 1 will allow the tag to override the bot's judgement. Set to 0 to disable.

  • archive_by_accessdate – Setting this to 1 will instruct the bot to provide archive snapshots as close to the URLs original access data as possible. Setting this to 0 will have the bot simply find the newest working archive. Exceptions to this are the archive snapshots already found and stored in the DB for already scanned URLs.

  • touch_archive – This setting determines whether or not the bot is allowed to touch a URL that already has an archive snapshot associated with it. Setting this to 1 enables this feature. Setting this to 0 disables this feature. In the event of invalid archives being present or detectable mis-formatting of archive URLs, the bot will ignore this setting and touch those respective URLs.

  • notify_on_talk – This setting instructs the bot to leave a message of what changes it made to a page on its respective talk page. When editing the main page, the talk page message is only left when new archives are added to URLs or existing archives are changed. When only leaving a talk page message without editing the main page, the message is left if a URL is detected to be dead, or archive snapshots were found for given URLs. Setting this to 1 enables this feature. Setting this to 0 disables it.

  • notify_error_on_talk – This instructs the bot to leave messages about problematic sources not being archived on respective talk pages. Setting to 1 enables this feature.

  • talk_message_header – Set the section header of the talk page message it leaves behind, when notify_on_talk is set to 1. See the "Magic Word Globals" subsection for usable magic words.

  • talk_message – The main body of the talk page message left when notify_on_talk is set to 1.

  • talk_message_header_talk_only – Set the section header of the talk page message it leaves behind when the bot doesn't edit the main article. See the "Magic Word Globals" subsection for usable magic words.

  • talk_message_talk_only – The main body of the talk page message left when the bot doesn't edit the main article. See the "Magic Word Globals" subsection for usable magic words.

  • talk_error_message_header – Set the section header of the talk page error message left behind, when notify_error_on_talk is set to 1.

  • talk_error_message – The main body of the talk page error message left when notify_error_on_talk is set to 1. Supports the following magic words:

    • {problematiclinks}: A bullet generated list of errors encountered during the archiving process.

  • deadlink_tags – A collection of dead link tags to seek out. Automatically resolves the redirects, so redirects are not required. Format the template as you would on an article, without parameters.

  • citation_tags – A collection of citation tags to seek out, that support URLs. Automatically resolves the redirects, so redirects are not required. Format the template as you would on an article, without parameters.

  • archive#_tags – A collection of general archive tags to seek out, that supports the archiving services IABot uses. Automatically resolves the redirects, so redirects are not required. Format the template as you would on an article, without parameters. The "#" is a number. Multiple categories can be implemented to handle different unique archiving templates. This is dependent on how the bot is designed to handle these on a given wiki and is wiki specific.

  • talk_only_tags – A collection of IABot tags to seek out, that signal the bot to only leave a talk page message. These tags overrides the active configuration.

  • no_talk_tags – A collection of IABot tags to seek out, that signal the bot to not leave a talk page message. These tags overrides the active configuration.

  • ignore_tags – A collection of bot specific tags to seek out. These tags instruct the bot to ignore the source the tag is attached to. Automatically resolves the redirects, so redirects are not required. Format the template as you would on an article, without parameters.

  • verify_dead – Activate the dead link checker algorithm. The bot will check all untagged and not yet flagged as dead URLs and act on that information. Set to 1 to enable. Set to 0 to disable.

  • archive_alive – Submit live URLs not yet in the Wayback Machine for archiving into the Wayback Machine. Set to 1 to enable. Requires permission from the developers of the Wayback Machine.

  • notify_on_talk_only – Disable editing of the main article and leave a message on the talk page only. This overrides notify_on_talk. Set to 1 to enable.

  • convert_archives – This option instructs the bot to convert all recognized archives to HTTPS when possible, and forces the long-form snapshot URLs, when possible, to include a decodable timestamp and original URL.

  • convert_to_cites – This option instructs the bot to convert plain links inside references with no title to citation templates. Set to 0 to disable.

  • mladdarchive – Part of the {modifiedlinks} magic word, this is used to describe the addition of an archive to a URL. Supports the following magic words:

    • {link}: The original URL.
    • {newarchive}: The new archive of the original URL.

  • mlmodifyarchive – Part of the {modifiedlinks} magic word, this is used to describe the modification of an archive URL for the original URL. Supports the following magic words:

    • {link}: The original URL.
    • {oldarchive}: The old archive of the original URL.
    • {newarchive}: The new archive of the original URL.

  • mlfix – Part of the {modifiedlinks} magic word, this is used to describe the formatting changes and/or corrections made to a URL. Supports the following magic words:

    • {link}: The original URL.

  • mltagged – Part of the {modifiedlinks} magic word, this is used to describe that the original URL has been tagged as dead. Supports the following magic words:

    • {link}: The original URL.

  • mltagremoved – Part of the {modifiedlinks} magic word, this is used to describe that the original URL has been untagged as dead. Supports the following magic words:

    • {link}: The original URL.

  • mldefault – Part of the {modifiedlinks} magic word, this is used as the default text in the event of an internal error when generating the {modifiedlinks} magic word. Supports the following magic words:

    • {link}: The original URL.

  • mladdarchivetalkonly – Part of the {modifiedlinks} magic word, this is used to describe the recommended addition of an archive to a URL. This is used when the main article hasn't been edited. Supports the following magic words:

    • {link}: The original URL.
    • {newarchive}: The new archive of the original URL.

  • mltaggedtalkonly – Part of the {modifiedlinks} magic word, this is used to describe that the original URL has been found to be dead and should be tagged. This is used when the main article hasn't been edited. Supports the following magic words:

    • {link}: The original URL.

  • mltagremovedtalkonly – Part of the {modifiedlinks} magic word, this is used to describe that the original URL has been tagged as dead, but found to be alive and recommends the removal of the tag. This is used when the main article hasn't been edited. Supports the following magic words:

    • {link}: The original URL.

  • plerror – Part of the {problematiclinks} magic word, this is used to describe the problem the Wayback machine encountered during archiving. Supports the following magic words:

    • {problem}: The problem URL.
    • {error}: The error that was encountered for the URL during the archiving process.

  • maineditsummary – This sets the edit summary the bot will use when editing the main article. See the "Magic Word Globals" subsection for usable magic words. (Items 11, 12, and 13 are not supported)

  • errortalkeditsummary – This sets the edit summary the bot will use when posting the error message on the article's talk page.

  • talkeditsummary = This sets the edit summary the bot will use when posting the analysis information on the article's talk page. See the Magic Word Globals subsection for usable magic words.

Magic Word Globals

These magic words are available when mentioned in the respective configuration options above.

  • {namespacepage}: The page name of the main article that was analyzed.
  • {linksmodified}: The number of links that were either tagged or rescued on the main article.
  • {linksrescued}: The number of links that were rescued on the main article.
  • {linksnotrescued}: The number of links that were unable to be rescued on the main article.
  • {linkstagged}: The number of links that were tagged dead on the main article.
  • {linksarchived}: The number of links that were archived into the Wayback Machine on the main article.
  • {linksanalayzed}: The number of links that were overall analyzed on the main article.
  • {pageid}: The page ID of the main article that was analyzed.
  • {title}: The URL encoded variant of the name of the main article that was analyzed.
  • {logstatus}: Returns "fixed" when the bot is set to edit the main article. Returns "posted" when the bot is set to only leave a message on the talk page.
  • {revid}: The revision ID of the edit to the main article. Empty if there is no edit to the main article.
  • {diff}: The URL of the revision comparison page of the edit to main article. Empty if there is no edit to the main article.
  • {modifedlinks}: A bullet generated list of actions performed/to be performed on the main article using the custom defined text in the other variables.

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