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//
// sfive
//
// sfive - spreadspace streaming statistics suite is a generic
// statistic collection tool for streaming server infrastuctures.
// The system collects and stores meta data like number of views
// and throughput from a number of streaming servers and stores
// it in a global data store.
// The data acquisition is designed to be generic and extensible in
// order to support different streaming software.
// sfive also contains tools and applications to filter and visualize
// live and recorded data.
//
//
// Copyright (C) 2014-2017 Christian Pointner <equinox@spreadspace.org>
// Markus Grüneis <gimpf@gimpf.org>
//
// This file is part of sfive.
//
// sfive 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.
//
// sfive is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY 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 sfive. If not, see <http://www.gnu.org/licenses/>.
//
package sfive
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/url"
"strconv"
"time"
)
type forwardPiwikBulkRequest struct {
Requests []string `json:"requests"`
TokenAuth string `json:"token_auth"`
}
func fwdPiwikGetLastUpdateID(piwikURL, siteURL string, siteID uint, token string, client *http.Client, hubUuid string) (lastID int, err error) {
// TODO: ask piwik what the last update was...
lastID = 0
return
}
func (srv Server) forwardPiwikRun(piwikURL, siteURL string, siteID uint, token string, client *http.Client) {
// hubUuid := srv.store.GetHubUuid()
tryResync:
for {
// lastID, err := srv.forwardPiwikGetLastUpdateID(piwikURL, siteURL, siteID, token, client, hubUuid)
lastID, err := srv.store.GetLastUpdateID()
if err != nil {
s5l.Printf("srv|fwd-piwik: fetching lastupdate failed: %v", err)
time.Sleep(5 * time.Second)
continue tryResync
}
s5l.Printf("srv|fwd-piwik: new lastupdate: %d", lastID)
nextBatch:
for {
updates, err := srv.store.GetUpdatesAfter(lastID, 5000)
if err != nil {
s5l.Printf("srv|fwd-piwik: reading updates failed: %v", err)
time.Sleep(500 * time.Millisecond)
continue nextBatch
}
if len(updates) == 0 {
time.Sleep(1 * time.Second)
continue nextBatch
}
// TODO: move this to seperate function and write to io.PipeWriter
req := forwardPiwikBulkRequest{TokenAuth: token}
for _, update := range updates {
if len(update.Data.Clients) == 0 {
continue
}
for _, client := range update.Data.Clients {
ip, _, err := net.SplitHostPort(client.IP)
if err != nil {
ip = client.IP
}
// see: https://developer.piwik.org/api-reference/tracking-api
q := make(url.Values)
q.Add("rec", "1")
q.Add("idsite", strconv.FormatUint(uint64(siteID), 10))
q.Add("url", fmt.Sprintf("%s/%s/%s/%s/%s", siteURL, update.Stream.ContentID, update.Stream.Format, update.Stream.Quality, update.Hostname))
q.Add("cip", ip)
q.Add("cdt", strconv.FormatInt(update.StartTime.Unix(), 10))
q.Add("ua", client.UserAgent)
// TODO: add geoip info as soon this is implemented:
//q.Add("country", ...) 2 Letter Country-Code
//q.Add("region", ...) 2 Letter Region-Code
//q.Add("city", ...)
//q.Add("lat", ...)
//q.Add("lon", ...)
req.Requests = append(req.Requests, "?"+q.Encode())
}
}
postData := bytes.Buffer{}
if err := json.NewEncoder(&postData).Encode(req); err != nil {
s5l.Panicf("srv|fwd-piwik: encoding updates failed: %v", err)
}
// TODO: move this to seperate function and read from io.PipeReader
resp, err := client.Post(piwikURL, "application/json", &postData)
if err != nil {
s5l.Printf("srv|fwd-piwik: posting updates failed: %v", err)
time.Sleep(1 * time.Second)
continue tryResync
}
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusCreated {
body, _ := ioutil.ReadAll(resp.Body)
s5l.Printf("srv|fwd-piwik: posting updates failed: %s\n%s", resp.Status, body)
time.Sleep(1 * time.Second)
continue tryResync
}
resp.Body.Close() // TODO: check result from Piwik
lastID = findMaxID(updates)
s5l.Printf("srv|fwd-piwik: successfully forwarded %d updates, new lastid: %d", len(updates), lastID)
}
}
}
func (srv Server) RunForwardingPiwik(cfg PiwikForwardConfig) {
s5l.Printf("srv|fwd-piwik: forwarding to '%s'", cfg.URL)
defer s5l.Println("srv|fwd-piwik: forwarder stopped")
srv.forwardPiwikRun(cfg.URL, cfg.SiteURL, cfg.SiteID, cfg.AuthConfig.Token, http.DefaultClient)
}
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