85 lines
2.4 KiB
Lua
85 lines
2.4 KiB
Lua
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-- contrib/rss_all.lua
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-- Copyright (C) 2009 olcc
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-- Copyright (C) 2017 Jörg Thalheim <joerg@higgsboson.tk>
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--
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-- This file is part of Vicious.
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--
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-- Vicious is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as
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-- published by the Free Software Foundation, either version 2 of the
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-- License, or (at your option) any later version.
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--
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-- Vicious is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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---------------------------------------------------
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-- This is now a standalone RSS reader for awesome:
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-- * http://github.com/olcc/aware
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---------------------------------------------------
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-- {{{ Grab environment
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local pairs = pairs
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local io = { popen = io.popen }
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local setmetatable = setmetatable
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-- }}}
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-- RSS: provides latest world news
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-- vicious.contrib.rss
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local rss_all = {}
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-- {{{ RSS widget type
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local function worker(format, input)
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-- input: * feed - feed url
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-- * object - entity to look for (typically: 'item')
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-- * fields - fields to read (example: 'link', 'title', 'description')
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-- output: * count - number of entities found
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-- * one table for each field, containing wanted values
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local feed = input.feed
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local object = input.object
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local fields = input.fields
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-- Initialise tables
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local out = {}
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for _, v in pairs(fields) do
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out[v] = {}
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end
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-- Initialise variables
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local ob = nil
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local i,j,k = 1, 1, 0
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local curl = "curl -A 'Mozilla/4.0' -fsm 5 --connect-timeout 3 "
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-- Get the feed
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local f = io.popen(curl .. '"' .. feed .. '"')
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local feed = f:read("*all")
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f:close()
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while true do
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i, j, ob = feed.find(feed, "<" .. object .. ">(.-)</" .. object .. ">", i)
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if not ob then break end
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for _, v in pairs(fields) do
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out[v][k] = ob:match("<" .. v .. ">(.*)</" .. v .. ">")
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end
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k = k+1
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i = j+1
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end
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-- Update the entity count
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out.count = k
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return out
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end
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-- }}}
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return setmetatable(rss_all, { __call = function(_, ...) return worker(...) end })
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