This is a relatively simple bot that is part of the Exocortex Halo (https://github.com/virtadpt/exocortex-halo) project which operates in concert with other bots to implement fire-and-forget web search requests. The intended use case is this: While out and about without a laptop, use an XMPP client running on a phone to send a command of the form ", top twenty hits for ." These commands are picked up by exocortex_xmpp_bridge.py and stored in an message queue that is periodically polled (by default, once a minute) by this bot. web_search_bot.py extracts a message with the search request from its mssage queue, parses it, assembles the actual search request, and runs a search through an instance of Searx (https://github.com/asciimoo/searx) defined in web_search_bot.conf.
You're probably wondering why I stripped out the "define your own search engines and parsers in the config file" functionality, which earlier releases of this bot had. That's because I got tired of maintaining lists of search engines and hyperlinks to strip out. They change often enough that this got to be annoying and limiting. Searx does much of this on its own, plus it returns search results with rankings as JSON, which simplifies working with the results immensely. After some testing I find that it returns much more reliable and useful search results than my own code did.
So, go install Searx but don't bother with uwsgi or putting it behind a reverse proxy; just have it listen on 127.0.0.1 on some port you're not using (8888/tcp by default).
web_search_bot.py is also capable of e-mailing search terms to an address specified in the command. For example, ", send firstname.lastname@example.org top twenty hits for "
web_search_bot.py currently only supports up to fifty (50) search results. Specifying an invalid number causes it to default to ten (10).
web_index_bot.py is a bot which does the reverse - when you send it a URL it submits it to whatever search engines you have defined in its configuration file. This could be something like an instance of YaCy running on the same host or it could be the Internet Archive's Wayback Machine.