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/*
Copyright 2014 Canonical Ltd.
Authors: Sergio Schvezov <sergio.schvezov@canonical.com>
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License version 3, as published
by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranties of
MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package main
import (
"encoding/json"
"fmt"
"strings"
"sync"
"log"
"launchpad.net/account-polld/accounts"
"launchpad.net/account-polld/gettext"
"launchpad.net/account-polld/plugins"
"launchpad.net/account-polld/plugins/facebook"
"launchpad.net/account-polld/plugins/gmail"
"launchpad.net/account-polld/plugins/twitter"
"launchpad.net/account-polld/pollbus"
"launchpad.net/account-polld/qtcontact"
"launchpad.net/go-dbus/v1"
)
type PostWatch struct {
appId plugins.ApplicationId
messages []plugins.PushMessage
}
/* Use identifiers and API keys provided by the respective webapps which are the official
end points for the notifications */
const (
SERVICETYPE_WEBAPPS = "webapps"
SERVICENAME_GMAIL = "com.ubuntu.developer.webapps.webapp-gmail_webapp-gmail"
SERVICENAME_TWITTER = "com.ubuntu.developer.webapps.webapp-twitter_webapp-twitter"
SERVICENAME_FACEBOOK = "com.ubuntu.developer.webapps.webapp-facebook_webapp-facebook"
)
const (
POSTAL_SERVICE = "com.ubuntu.Postal"
POSTAL_INTERFACE = "com.ubuntu.Postal"
POSTAL_OBJECT_PATH_PART = "/com/ubuntu/Postal/"
)
var mainLoopOnce sync.Once
func init() {
startMainLoop()
}
func startMainLoop() {
mainLoopOnce.Do(func() {
go qtcontact.MainLoopStart()
})
}
func main() {
// TODO NewAccount called here is just for playing purposes.
postWatch := make(chan *PostWatch)
// Initialize i18n
gettext.SetLocale(gettext.LC_ALL, "")
gettext.Textdomain("account-polld")
gettext.BindTextdomain("account-polld", "/usr/share/locale")
bus, err := dbus.Connect(dbus.SessionBus)
if err != nil {
log.Fatal("Cannot connect to bus", err)
}
pollBus := pollbus.New(bus)
go postOffice(bus, postWatch)
go monitorAccounts(postWatch, pollBus)
if err := pollBus.Init(); err != nil {
log.Fatal("Issue while setting up the poll bus:", err)
}
done := make(chan bool)
<-done
}
func monitorAccounts(postWatch chan *PostWatch, pollBus *pollbus.PollBus) {
// Note: the accounts monitored are all linked to webapps right now
watcher := accounts.NewWatcher(SERVICETYPE_WEBAPPS)
mgr := make(map[uint]*AccountManager)
L:
for {
select {
case data := <-watcher.C:
if account, ok := mgr[data.AccountId]; ok {
if data.Enabled {
log.Println("New account data for existing account with id", data.AccountId)
account.updateAuthData(data)
} else {
account.Delete()
delete(mgr, data.AccountId)
}
} else if data.Enabled {
var plugin plugins.Plugin
switch data.ServiceName {
case SERVICENAME_GMAIL:
log.Println("Creating account with id", data.AccountId, "for", data.ServiceName)
plugin = gmail.New(data.AccountId)
case SERVICENAME_FACEBOOK:
// This is just stubbed until the plugin exists.
log.Println("Creating account with id", data.AccountId, "for", data.ServiceName)
plugin = facebook.New(data.AccountId)
case SERVICENAME_TWITTER:
// This is just stubbed until the plugin exists.
log.Println("Creating account with id", data.AccountId, "for", data.ServiceName)
plugin = twitter.New()
default:
log.Println("Unhandled account with id", data.AccountId, "for", data.ServiceName)
continue L
}
mgr[data.AccountId] = NewAccountManager(watcher, postWatch, plugin)
mgr[data.AccountId].updateAuthData(data)
mgr[data.AccountId].Poll(true)
}
case <-pollBus.PollChan:
var wg sync.WaitGroup
for _, v := range mgr {
wg.Add(1)
poll := v.Poll
go func() {
defer wg.Done()
poll(false)
}()
}
wg.Wait()
pollBus.SignalDone()
}
}
}
func postOffice(bus *dbus.Connection, postWatch chan *PostWatch) {
for post := range postWatch {
for _, n := range post.messages {
var pushMessage string
if out, err := json.Marshal(n); err == nil {
pushMessage = string(out)
} else {
log.Printf("Cannot marshall %#v to json: %s", n, err)
continue
}
obj := bus.Object(POSTAL_SERVICE, pushObjectPath(post.appId))
if _, err := obj.Call(POSTAL_INTERFACE, "Post", post.appId, pushMessage); err != nil {
log.Println("Cannot call the Post Office:", err)
log.Println("Message missed posting:", pushMessage)
}
}
}
}
// pushObjectPath returns the object path of the ApplicationId
// for Push Notifications with the Quoted Package Name in the form of
// /com/ubuntu/PushNotifications/QUOTED_PKGNAME
//
// e.g.; if the APP_ID is com.ubuntu.music", the returned object path
// would be "/com/ubuntu/PushNotifications/com_2eubuntu_2eubuntu_2emusic
func pushObjectPath(id plugins.ApplicationId) dbus.ObjectPath {
idParts := strings.Split(string(id), "_")
if len(idParts) < 2 {
panic(fmt.Sprintf("APP_ID '%s' is not valid", id))
}
pkg := POSTAL_OBJECT_PATH_PART
for _, c := range idParts[0] {
switch c {
case '+', '.', '-', ':', '~', '_':
pkg += fmt.Sprintf("_%x", string(c))
default:
pkg += string(c)
}
}
return dbus.ObjectPath(pkg)
}
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