contrib: imported contrib widgets

1 files changed, 67 insertions, 0 deletions

diff --git a/contrib/rss.lua b/contrib/rss.lua
new file mode 100644
index 0000000..bba1bf2
--- /dev/null
+++ b/contrib/rss.lua
@@ -0,0 +1,67 @@
+---------------------------------------------------
+-- Licensed under the GNU General Public License v2
+--  * (c) 2009, olcc
+--
+-- This is now a standalone RSS reader for awesome:
+--  * http://github.com/olcc/aware
+---------------------------------------------------
+
+-- {{{ Grab environment
+local pairs = pairs
+local io = { popen = io.popen }
+local setmetatable = setmetatable
+-- }}}
+
+
+-- RSS: provides latest world news
+module("vicious.contrib.rss")
+
+
+-- {{{ RSS widget type
+local function worker(format, input)
+    -- input:  * feed   - feed url
+    --         * object - entity to look for (typically: 'item')
+    --         * fields - fields to read (example: 'link', 'title', 'description')
+    -- output: * count  - number of entities found
+    --         * one table for each field, containing wanted values
+    local feed   = input.feed
+    local object = input.object
+    local fields = input.fields
+
+    -- Initialise tables
+    local out = {}
+
+    for _, v in pairs(fields) do
+        out[v] = {}
+    end
+
+    -- Initialise variables
+    local ob    = nil
+    local i,j,k = 1, 1, 0
+    local curl  = "curl -A 'Mozilla/4.0' -fsm 5 --connect-timeout 3 "
+
+    -- Get the feed
+    local f = io.popen(curl .. '"' .. feed .. '"')
+    local feed = f:read("*all")
+    f:close()
+
+    while true do
+        i, j, ob = feed.find(feed, "<" .. object .. ">(.-)</" .. object .. ">", i)
+        if not ob then break end
+
+        for _, v in pairs(fields) do
+            out[v][k] = ob:match("<" .. v .. ">(.*)</" .. v .. ">")
+        end
+
+        k = k+1
+        i = j+1
+    end
+
+    -- Update the entity count
+    out.count = k
+
+    return out
+end
+-- }}}
+
+setmetatable(_M, { __call = function(_, ...) return worker(...) end })