announcement-test/temp_file/app/helpers/admin/gmail_helper.rb

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module Admin::GmailHelper
class ClientID
attr_accessor :id
attr_accessor :secret
def initialize(id,secret)
@id = id
@secret = secret
end
end
begin
require "google/apis/gmail_v1"
rescue LoadError => e
end
begin
require "googleauth"
require "googleauth/stores/file_token_store"
rescue LoadError => e
end
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require "fileutils"
SCOPE = ['https://mail.google.com/']
OOB_URI = "urn:ietf:wg:oauth:2.0:oob"
GOOGLE_ACCOUNTS_BASE_URL = 'https://accounts.google.com'
GmailTokenFile = "public/gmail-token.yaml"
def authorize_gmail(code=nil,site=nil)
site = Site.first if site.nil?
client_id = Google::Auth::ClientId.new(site.gmail_client_id,site.gmail_client_secret)
if !File.exist?(GmailTokenFile) and code.nil? and !site.gmail_access_token.nil? and !site.gmail_refresh_token.nil?
token_json ={"client_id" => site.gmail_client_id,
"access_token" => site.gmail_access_token,
"refresh_token" => site.gmail_refresh_token,
"scope" => SCOPE,
"expiration_time_millis" => 3600}.to_json
File.open(GmailTokenFile, 'w') { |file| file.write(YAML.dump({'me' => token_json})) }
end
token_store = Google::Auth::Stores::FileTokenStore.new(file: GmailTokenFile)
authorizer = Google::Auth::UserAuthorizer.new(client_id, SCOPE, token_store)
user_id = 'me'
credentials = authorizer.get_credentials user_id
if credentials.nil? && !code.nil?
credentials = authorizer.get_and_store_credentials_from_code(
user_id: user_id, code: code, base_url: OOB_URI
)
end
credentials
end
def AccountsUrl(cmd)
"#{GOOGLE_ACCOUNTS_BASE_URL}/#{cmd}"
end
def GeneratePermissionUrl(scope = 'https://mail.google.com/')
client_id = Site.first.gmail_client_id
scope = ERB::Util.url_encode(scope)
request_url = AccountsUrl('o/oauth2/auth')
redirect_uri = OOB_URI
"#{request_url}?scope=#{scope}&client_id=#{client_id}&response_type=code&redirect_uri=#{redirect_uri}"
end
def send_post_request(request_url,param,req_params={})
uri = URI(request_url)
res_net = Net::HTTP.start(uri.host, uri.port,
:use_ssl => uri.scheme == 'https',
open_timeout: 60,read_timeout: 60,
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verify_mode: OpenSSL::SSL::VERIFY_PEER) do |http|
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req = Net::HTTP::Post.new(uri)
req.content_type='application/x-www-form-urlencoded'
req_params.each do |k,v|
req[k] = v
end
req.body = URI.encode_www_form(param)
http.request(req)
end
end
def AuthorizeTokens(client_id, client_secret, authorization_code)
credentials = authorize_gmail(authorization_code)
"""
param = {}
param['client_id'] = client_id
param['client_secret'] = client_secret
param['code'] = authorization_code
param['redirect_uri'] = 'urn:ietf:wg:oauth:2.0:oob'
param['grant_type'] = 'authorization_code'
request_url = AccountsUrl('o/oauth2/token')
res_net = send_post_request(request_url,param,{'Pragma'=>'no-cache','Cache-Control'=>'no-store'})
res_net.code=='200' ? JSON.load(res_net.body) : {}
"""
credentials.as_json
end
def set_new_token()
site = Site.first if site.nil?
client_secret = site.gmail_client_secret
client_id = site.gmail_client_id
access_token = site.gmail_access_token
refresh_token = site.gmail_refresh_token
access_token = RefreshToken(client_id, client_secret, refresh_token)['access_token']
if !access_token.nil?
site.update_attributes(gmail_access_token: access_token)
end
access_token
end
def RefreshToken(client_id, client_secret, refresh_token)
param = {}
param['client_id'] = client_id
param['client_secret'] = client_secret
param['refresh_token'] = refresh_token
param['grant_type'] = 'refresh_token'
request_url = AccountsUrl('o/oauth2/token')
res_net = send_post_request(request_url,param)
res_net.code=='200' ? JSON.load(res_net.body) : {}
end
def send_gmail(raw,service=nil)
site = Site.first
if service.nil?
service = Google::Apis::GmailV1::GmailService.new
service.client_options.application_name = "Gmail API"
service.authorization = authorize_gmail(nil,site)
end
user_id = 'me'
message = Google::Apis::GmailV1::Message.new(raw: raw)
error = nil
result = nil
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service.send_user_message(user_id,message,quota_user: site.title_translations[site.default_locale||:zh_tw]){|r,err| result=r;error=err}
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[service,error]
end
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end