--[[
Copyright (c) 2013 Isode Limited.
All rights reserved.
See the COPYING file for more information.
--]]
--[[
Contacts map
Creates an HTML file of a map with all your contacts on it.
The following environment variables are used:
- SLUIFT_JID, SWIFT_PASS: JID and password to log in with
--]]
require "sluift"
output_dir = arg[1]
if not output_dir then
error("Please specify the directory to write the map to")
end
-- Collect all data
geolocs = {}
avatars = {}
c = sluift.new_client(os.getenv("SLUIFT_JID"), os.getenv("SLUIFT_PASS"))
c:connect(function ()
-- Indicate we're interested in getting user location information, and send initial presence
c:set_caps_node("http://swift.im/ContactsMap")
c:set_disco_info({identities = {{name = 'ContactsMap'}}, features = {
sluift.disco.features.DISCO_INFO,
sluift.disco.features.USER_LOCATION .. '+notify',
}})
c:send_presence()
-- Collect geoloc info
for event in c:pubsub_events {timeout = 10000} do
local from = sluift.jid.to_bare(event.from)
if event._type == 'pubsub_event_items' and event.item then
if event.node == sluift.disco.features.USER_LOCATION then
local lat, lon = event.item.latitude, event.item.longitude
if lat and lon then geolocs[from] = {lat = lat, lon = lon} end
end
end
end
-- Download the necessary avatars
for contact in pairs(geolocs) do
local vcard = c:get_vcard {to = contact}
if vcard and vcard.photo then
local avatar_hash = sluift.hexify(sluift.sha1(vcard.photo))
local file = io.open(output_dir.."/" .. avatar_hash .. ".png", "wb")
file:write(vcard.photo)
file:close()
avatars[contact] = avatar_hash
end
end
end)
-- Generate html
min_lat, max_lat = 90, -90
min_lon, max_lon = 180, -180
contacts_html = {}
for contact, geoloc in pairs(geolocs) do
if geoloc.lat < min_lat then min_lat = geoloc.lat end
if geoloc.lon < min_lon then min_lon = geoloc.lon end
if geoloc.lat > max_lat then max_lat = geoloc.lat end
if geoloc.lon > max_lon then max_lon = geoloc.lon end
local image = 'null'
if avatars[contact] then
image = "'" .. avatars[contact] .. ".png'"
end
contacts_html[#contacts_html+1] = "['" .. contact .. "'," .. geoloc.lat .. "," .. geoloc.lon .. "," .. image .. "]"
end
center_html = ((min_lat + max_lat) / 2) .. ',' .. ((min_lon + max_lon) / 2)
map_html = [[
Contacts Map
]]
local file = io.open(output_dir .. "/index.html", "w")
file:write(map_html:
gsub('%%%(CONTACTS%)', table.concat(contacts_html, ",")):
gsub('%%%(CENTER%)', center_html))
file:close()