searchbot-discord/extensions/search.py
2020-02-23 17:47:51 -05:00

115 lines
No EOL
3.6 KiB
Python

# -*- coding: utf-8 -*-
# Search Functionality
# Provides search results from SearX
'''Search Cog'''
import discord
from discord.ext import commands
import aiohttp
import random
class Search(commands.Cog):
def __init__(self, bot):
self.bot = bot
self.request = bot.request
self.instances = bot.instances
async def _search_logic(self, query: str, type: str = None):
"""Provides search logic for all search commands."""
# Choose an instance
if self.instances == []:
with open('searxes.txt') as f:
self.instances = f.read().split('\n')
instance = random.sample(self.instances, k=1)[0]
print(f"Attempting to use {instance}")
appinfo = await self.bot.application_info()
# Error Template
error_msg = ("**An error occured!**\n\n"
f"There was a problem with `{instance}`. Please try again later.\n"
f"_If problems with this instance persist, contact`{appinfo.owner}` to have it removed._")
# Create the URL to make an API call to
call = f'{instance}/search?q={query}&format=json&language=en-US'
# If a type is provided, add that type to the call URL
if type:
call += f'?type={type}'
# Make said API call
try:
async with self.request.get(call) as resp:
response = await resp.json()
except aiohttp.ClientError:
return error_msg
# Split our response data up for parsing
# infoboxes = response['infoboxes']
results = response['results']
# Create message with results
try:
# Handle tiny result count
if len(results) > 5:
amt = 5
else:
amt = len(results)
# Header
msg = f"Showing **{amt}** results for `{query}`. \n\n"
# Expanded Result
msg += (
f"**{results[0]['title']}** <{results[0]['url']}>\n"
f"{results[0]['content']}\n\n")
# Other Results
msg += "\n".join(
[f"**{entry['title']}** <{entry['url']}>" for entry in results[1:5]])
# Instance Info
msg += f"\n\n_Results retrieved from instance `{instance}`._"
# Reached if error with returned results
except (KeyError, IndexError) as e:
# Logging
print(f"{e} with instance {instance}, trying again.")
self.instances.remove(instance) # Weed the instance out
return await self._search_logic(query) # Recurse until good response
return msg
@commands.command()
async def search(self, ctx, *, query: str):
"""Search online for results."""
# Logging
print(f"\n\nNEW CALL: {ctx.author} from {ctx.guild}.\n")
# Handling
async with ctx.typing():
msg = await self._search_logic(query)
await ctx.send(msg)
@commands.Cog.listener()
async def on_command_error(self, ctx, error):
"""Listener makes no command fallback to searching."""
if isinstance(error, commands.CommandNotFound):
# Logging
print(f"\n\nNEW CALL: {ctx.author} from {ctx.guild}.\n")
# Handling
async with ctx.typing():
# Prepares term
term = ctx.message.content.replace(ctx.prefix, '', 1)
term = term.lstrip(' ')
# Does search
msg = await self._search_logic(term)
# Sends result
await ctx.send(msg)
def setup(bot):
bot.add_cog(Search(bot))