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# Description:
# This is a basic OAuth authentication bot which is meant to be used with
# other scripts to interact and get data via signed API requests. Script
# has a dependency to scribe-node library that fundamentally wraps OAuth
# routines to give simpler and maintainable development experience for coders.
#
# Dependencies:
# "scribe-node": ">=0.0.24"
#
# Configuration:
# None
#
# Commands:
# get <api> authorization url - get a link to authorization place
# set <api> verifier <verification_code> - set verification code and access token after first step
# set <api> access token <code> - set access token manually, for OAuth 2.0 (Facebook) only
# refresh <api> token - refresh access token if it expires, for OAuth 2.0 only
# get <api> request token - retrieves request token public value
# get <api> access token - retrieves access token public value
# get <api> verifier - retrieves verification code
# remove <api> authorization - clears tokens from memory if user is same who verified the last authorization
#
# Author:
# mmstud
scribe = require('scribe-node').load(['OAuth'])
# set custom service configurations if not available from scribe OAuth widget.
# see examples and instructions from the loaded module widget itself:
# https://github.com/mmstud/scribe-node/blob/master/src/widgets/OAuth.coffee
services = {}
handle_authorization = (robot, msg) ->
callback = (url) ->
message = if url then url else "Error on retrieving url. See logs for more details."
msg.send message
new scribe.OAuth(robot.brain.data, msg.match[1].toLowerCase(), services).get_authorization_url(callback)
handle_verification = (robot, msg) ->
api = msg.match[1].toLowerCase()
callback = (response) ->
if response
if not robot.brain.data.oauth_user
robot.brain.data.oauth_user = []
# set up owner for authorization. affects only to removing it so far.
# but note that someone can still overwrite authorization if wanted!
robot.brain.data.oauth_user[api] = msg.message.user.reply_to
message = "Verification done"
else
message = "Error on verification process. See logs for more details."
msg.send message
new scribe.OAuth(robot.brain.data, api, services).set_verification_code(msg.match[2], callback)
handle_refresh = (robot, msg) ->
service = new scribe.OAuth(robot.brain.data, msg.match[1].toLowerCase(), services)
if access_token = service.get_access_token()
callback = (response) ->
message = if response then "Access token refreshed" else "Error on refreshing access token. See logs for more details."
msg.send message
service.refresh_access_token(access_token, callback)
else
msg.send "Access token not found"
# small factory to support both gtalk and other adapters by hearing all lines or those called by bot name only
hear_and_respond = (robot, regex, callback) ->
robot.hear eval('/^'+regex+'/i'), callback
robot.respond eval('/'+regex+'/i'), callback
module.exports = (robot) ->
hear_and_respond robot, 'get ([0-9a-zA-Z].*) authorization url$', (msg) ->
handle_authorization robot, msg
hear_and_respond robot, 'set ([0-9a-zA-Z].*) verifier (.*)', (msg) ->
handle_verification robot, msg
hear_and_respond robot, 'refresh ([0-9a-zA-Z].*) token$', (msg) ->
handle_refresh robot, msg
hear_and_respond robot, 'get ([0-9a-zA-Z].*) request token$', (msg) ->
if token = new scribe.OAuth(robot.brain.data, msg.match[1].toLowerCase(), services).get_request_token()
message = "Request token: " + token.getToken()
else
message = "Request token not found"
msg.send message
hear_and_respond robot, 'get ([0-9a-zA-Z].*) access token$', (msg) ->
if token = new scribe.OAuth(robot.brain.data, msg.match[1].toLowerCase(), services).get_access_token()
message = "Access token: " + token.getToken()
else
message = "Access token not found"
msg.send message
hear_and_respond robot, 'get ([0-9a-zA-Z].*) verifier$', (msg) ->
if token = new scribe.OAuth(robot.brain.data, msg.match[1].toLowerCase(), services).get_verifier()
message = "Verifier: " + token.getValue()
else
message = "Verifier not found"
msg.send message
hear_and_respond robot, 'remove ([0-9a-zA-Z].*) authorization$', (msg) ->
api = msg.match[1].toLowerCase()
if robot.brain.data.oauth_user and robot.brain.data.oauth_user[api] == msg.message.user.reply_to
message = "Authorization removed: " + new scribe.OAuth(robot.brain.data, api, services).remove_authorization()
else
message = "Authorization can be removed by original verifier only: " + robot.brain.data.oauth_user[api]
msg.send message
hear_and_respond robot, 'set ([0-9a-zA-Z].*) access token (.*)', (msg) ->
api = msg.match[1].toLowerCase()
if new scribe.OAuth(robot.brain.data, api, services).set_access_token_code(msg.match[2])
robot.brain.data.oauth_user[api] = msg.message.user.reply_to
message = "Access token set"
else
message = "Error on setting access token"
msg.send message
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