[ANN] lua-Spore-0.1.2

[François Perrad]

I am pleased to announce a new release of lua-Spore,
the implementation targeting the Lua language (http://www.lua.org).

Major changes since the first release 0.1.0 :
- the support of OAuth is fixed (see below, an example with LinkedIn API)
- a new middleware handles the Amazon Web Service authentication

The homepage is at http://fperrad.github.com/lua-Spore,
and the sources are hosted at http://github.com/fperrad/lua-Spore.

All feedback welcome. Thanks.

François.

=====8<===============8<=====

local url = require 'socket.url'
local Spore = require 'Spore'
--Spore.debug = io.stdout -- show URL & Headers

local function get_linkedin_keys (keys)
local oauth = require 'Spore'.new_from_spec
'https://raw.github.com/SPORE/api-description/master/services/linkedin/oauth.json'
oauth:enable('Auth.OAuth', keys)
local r1 = oauth:get_request_token()
print("request", r1.body)
for k, v in r1.body:gmatch'([^&=]+)=([^&=]*)&?' do keys[k] =
url.unescape(v) end

local r2 = oauth:authorize_token{ oauth_token = keys.oauth_token }
print("authorize", r2.status, r2.headers.location)

os.execute("x-www-browser " .. r2.headers.location) -- on linux
-- os.execute("start " .. r2.headers.location) -- on Windows

print "enter oauth_verifier (security code):"
local input = io.stdin:read('*l')
print("oauth_verifier=]" .. input .. "[")
keys.oauth_verifier = input

local r3 = oauth:get_access_token()
print("access", r3.body)
for k, v in r3.body:gmatch'([^&=]+)=([^&=]*)&?' do keys[k] =
url.unescape(v) end

keys.oauth_callback_confirmed = nil
keys.oauth_verifier = nil
keys.oauth_expires_in = nil
keys.oauth_authorization_expires_in = nil
keys.xoauth_request_auth_url = nil
return keys, oauth
end

local client = Spore.new_from_spec
'https://raw.github.com/SPORE/api-description/master/services/linkedin/people.json'
client:enable 'Format.JSON'
client:enable('Parameter.Default', {
selector = '',
format = 'json',
})
local keys, oauth = get_linkedin_keys{
oauth_consumer_key = 'YOUR_API_KEY',
oauth_consumer_secret = 'YOUR_SECRET_KEY',
}
client:enable('Auth.OAuth', keys)

-- People
local res = client:my_profile{ selector = ':(id)' }
print(res.status) --> 200
print(res.body.id)

local res = client:profile_by_id{ id = res.body.id, selector =
':(first-name,last-name)', lang = 'fr-FR' }
print(res.status) --> 200
print(res.body.firstName)
print(res.body.lastName)

local res = client:profile_by_id{ id = 'unknown' }
print(res.status) --> 404

local res = client:my_connections()
print(res.status) --> 200
print(res.body._total)
for _, v in ipairs(res.body.values) do
print(v.id, v.lastName, v.firstName, v.siteStandardProfileRequest.url)
end

local res = client:search_people{ keywords = 'ReST' }
print(res.status) --> 200
print(res.body.numResults)
for _, v in ipairs(res.body.people.values) do
print(v.id, v.lastName, v.firstName)
end

local r4 = oauth:invalidate_token()
print(r4.status) --> 200

local base = 'https://raw.github.com/SPORE/api-description/master/services/linkedin/'
local client = Spore.new_from_spec(base .. 'jobs.json', base .. 'network.json')
client:enable 'Format.XML'
client:enable('Auth.OAuth', get_linkedin_keys{
oauth_consumer_key = 'YOUR_API_KEY',
oauth_consumer_secret = 'YOUR_SECRET_KEY',
})

-- Jobs
local res = client:bookmark_job{ payload = { ['job-bookmark'] = { job
= { id = { 1725262 } } } } } -- POST
print(res.status) --> 201

local res = client:my_bookmarked_jobs{ selector = '' } -- GET
print(res.status) --> 200
print(res.body['job-bookmarks'].total)

local res = client:unbookmark_job{ id = 1725262 } -- DELETE
print(res.status) --> 204
print(res.body)

-- Network
local payload = {
activity = {
locale = 'en_US',
['content-type'] = { 'linkedin-html' },
body = { [[sent with <a
href="http://fperrad.github.com/lua-Spore/">lua-Spore (v0.1.2)</a>]]
},
}
}
local res = client:post_update{ payload = payload } -- POST
print(res.status) --> 201

[archus]

On Sun, 3 Jul 2011 21:57:31 +0200, François Perrad wrote:

> Major changes since the first release 0.1.0 :
> - the support of OAuth is fixed (see below, an example with LinkedIn
> API)
> - a new middleware handles the Amazon Web Service authentication

Hello François and the rest of the group.

I've been wanting to write a SPORE specification for Moodstocks API for
a while, but it would be currently useless since we use HTTP Digest
authentication. Do you think there is a clean way to implement it in
lua-Spore?

I know vanilla luasocket doesn't support it, but maybe cURL could be
used instead?

The difficulty with Digest Auth is that it is a two requests process
(the server MUST answer 401 to the first request). Also, efficient
implementations of Digest Auth are stateful (they keep the server nonce
and a counter per connection). I have no idea how a stateful middleware
could be implemented in lua-Spore, is there an example of such a
middleware?

Thanks for this great library anyway,

--
Pierre 'catwell' Chapuis

[François Perrad]

2011/7/4 archus <cat...@archlinux.us>:

I write the both versions (stateless & statefull). see
https://gist.github.com/1063624
In fact, with Spore, things become simple.

(note: the statefull needs a fix that I just pushed in master)

François

[archus]

On Mon, 4 Jul 2011 19:12:15 +0200, François Perrad wrote:

> I write the both versions (stateless & statefull). see
> https://gist.github.com/1063624
> In fact, with Spore, things become simple.
>
> (note: the statefull needs a fix that I just pushed in master)

Wow, this is cool. Thanks for the responsiveness!

I will try it with the other services and write a full Spore
spec ASAP.

--
Pierre 'catwell' Chapuis

[François Perrad]

2011/7/5 archus <cat...@archlinux.us>:

lua-Spore 0.1.3 is released (with Auth.Digest).

François

> --
> Pierre 'catwell' Chapuis
>
>