-
-
Notifications
You must be signed in to change notification settings - Fork 2
/
scrapers.go
290 lines (257 loc) · 7.74 KB
/
scrapers.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
package main
import (
"io/ioutil"
"log"
"os"
"strings"
"time"
"github.com/gbl08ma/sqalx"
"github.com/underlx/disturbancesmlx/scraper"
"github.com/underlx/disturbancesmlx/scraper/mlxscraper"
"github.com/underlx/disturbancesmlx/types"
)
var (
mlxscr scraper.StatusScraper
mlxETAscr scraper.ETAScraper
mlxcondscr scraper.ETAScraper
rssmlxscr scraper.AnnouncementScraper
fbmlxscr scraper.AnnouncementScraper
contestscr scraper.AnnouncementScraper
institutionalscr scraper.AnnouncementScraper
scrapers = make(map[string]scraper.Scraper)
)
// SetUpScrapers initializes and starts the scrapers used to obtain network information
func SetUpScrapers(node sqalx.Node, mlAccessToken string) error {
tx, err := node.Beginx()
if err != nil {
return err
}
defer tx.Rollback()
lisbonLoc, _ := time.LoadLocation("Europe/Lisbon")
network, err := types.GetNetwork(tx, MLnetworkID)
if err != nil {
// network does not exist, create it
network = &types.Network{
ID: MLnetworkID,
Name: "Metro de Lisboa",
MainLocale: "pt",
Names: map[string]string{
"en": "Lisbon Metro",
"fr": "Métro de Lisbonne",
"pt": "Metro de Lisboa",
},
TypicalCars: 6,
Holidays: []int64{},
OpenTime: types.Time(time.Date(0, 0, 0, 6, 30, 0, 0, lisbonLoc)),
OpenDuration: types.Duration(18*time.Hour + 30*time.Minute),
Timezone: "Europe/Lisbon",
NewsURL: "http://www.metrolisboa.pt/feed/",
}
err = network.Update(tx)
if err != nil {
return err
}
}
mlxscr = &mlxscraper.Scraper{
StatusCallback: handleNewStatusNotify,
Network: network,
Source: &types.Source{
ID: "mlxscraper-pt-ml",
Name: "Metro de Lisboa estado_Linhas.php",
Automatic: true,
Official: true,
},
Period: 20 * time.Second,
BearerToken: mlAccessToken,
EndpointURL: "https://api.metrolisboa.pt:8243/estadoServicoML/1.0.1",
}
mlxscr.Init(rootSqalxNode,
log.New(os.Stdout, "mlxscraper", log.Ldate|log.Ltime))
mlxscr.Begin()
scrapers[mlxscr.ID()] = mlxscr
if mlAccessToken != "" {
mlxETAscr = &mlxscraper.ETAScraper{
NewETACallback: vehicleETAHandler.RegisterVehicleETA,
BearerToken: mlAccessToken,
EndpointURL: "https://api.metrolisboa.pt:8243/estadoServicoML/1.0.1",
Network: network,
Period: 10 * time.Second,
}
err = mlxETAscr.Init(rootSqalxNode,
log.New(os.Stdout, "mlxETAscraper", log.Ldate|log.Ltime))
if err != nil {
return err
}
mlxETAscr.Begin()
scrapers[mlxETAscr.ID()] = mlxETAscr
mlxcondscr = &mlxscraper.ConditionsScraper{
ConditionCallback: handleNewCondition,
BearerToken: mlAccessToken,
EndpointURL: "https://api.metrolisboa.pt:8243/estadoServicoML/1.0.1",
Network: network,
Source: &types.Source{
ID: "mlxcond-pt-ml",
Name: "Metro de Lisboa EstadoServicoML",
Automatic: true,
Official: true,
},
Period: 1 * time.Minute,
}
err = mlxcondscr.Init(rootSqalxNode,
log.New(os.Stdout, "mlxcondscraper", log.Ldate|log.Ltime))
if err != nil {
return err
}
mlxcondscr.Begin()
scrapers[mlxcondscr.ID()] = mlxcondscr
} else {
log.Println("Not scraping pt-ml ETAs or line conditions, as access token is not present")
}
return tx.Commit()
}
func handleNewStatusNotify(status *types.Status) {
handleNewStatus(status, true)
}
func handleNewStatus(status *types.Status, allowNotify bool) {
tx, err := rootSqalxNode.Beginx()
if err != nil {
mainLog.Println(err)
return
}
defer tx.Rollback()
log.Println("New status for line", status.Line.Name, "on network", status.Line.Network.Name)
log.Println(" ", status.Status)
if status.IsDowntime {
log.Println(" Is disturbance!")
}
err = status.Line.AddStatus(tx, status, allowNotify)
if err != nil {
mainLog.Println(err)
return
}
err = tx.Commit()
if err != nil {
mainLog.Println(err)
return
}
lastChange = time.Now().UTC()
}
func handleNewCondition(condition *types.LineCondition) {
tx, err := rootSqalxNode.Beginx()
if err != nil {
mainLog.Println(err)
return
}
defer tx.Rollback()
latest, err := condition.Line.LastCondition(tx)
if err != nil || latest.TrainCars != condition.TrainCars || latest.TrainFrequency != condition.TrainFrequency {
err = condition.Update(tx)
if err != nil {
mainLog.Println(err)
return
}
}
tx.Commit()
}
// TearDownScrapers terminates and cleans up the scrapers used to obtain network information
func TearDownScrapers() {
mlxscr.End()
}
// SetUpAnnouncements sets up the scrapers used to obtain network announcements
func SetUpAnnouncements(facebookAccessToken string) {
network, err := types.GetNetwork(rootSqalxNode, MLnetworkID)
if err != nil {
mainLog.Println(err)
return
}
rssl := log.New(os.Stdout, "rssscraper", log.Ldate|log.Ltime)
rssmlxscr = &mlxscraper.RSSScraper{
ScraperID: "sc-pt-ml-rss",
URL: network.NewsURL,
Network: network,
Period: 1 * time.Minute,
}
rssmlxscr.Init(rssl, SendNotificationForAnnouncement)
rssmlxscr.Begin()
scrapers[rssmlxscr.ID()] = rssmlxscr
annStore.AddScraper(rssmlxscr)
fbl := log.New(os.Stdout, "fbscraper", log.Ldate|log.Ltime)
fbmlxscr = &mlxscraper.FacebookScraper{
AccessToken: facebookAccessToken,
Network: network,
Period: 1 * time.Minute,
}
fbmlxscr.Init(fbl, SendNotificationForAnnouncement)
fbmlxscr.Begin()
scrapers[fbmlxscr.ID()] = fbmlxscr
annStore.AddScraper(fbmlxscr)
// contest scraper - not really connected to the general announcements framework for now
contestl := log.New(os.Stdout, "contestscraper", log.Ldate|log.Ltime)
contestscr = &mlxscraper.RSSScraper{
ScraperID: "sc-pt-ml-contests-rss",
URL: "https://passatempos.metrolisboa.pt/feed/",
Network: network,
Period: 5 * time.Minute,
}
contestscr.Init(contestl, SendNotificationForContest)
contestscr.Begin()
scrapers[contestscr.ID()] = contestscr
// institutional website scraper - not really connected to the general announcements framework for now
institutionall := log.New(os.Stdout, "institutionalscraper", log.Ldate|log.Ltime)
institutionalscr = &mlxscraper.RSSScraper{
ScraperID: "sc-pt-ml-institutional-rss",
URL: "https://www.metrolisboa.pt/institucional/feed/",
Network: network,
Period: 5 * time.Minute,
}
institutionalscr.Init(institutionall, SendNotificationForInstitutionalPost)
institutionalscr.Begin()
scrapers[institutionalscr.ID()] = institutionalscr
}
// RegisterAndStartNewRSSScraper registers and starts a new ad-hoc RSS scraper
func RegisterAndStartNewRSSScraper(scraperID string, url string, network *types.Network, period time.Duration, callback func(announcement *types.Announcement)) *mlxscraper.RSSScraper {
slog := log.New(ioutil.Discard, "", log.Ldate|log.Ltime)
scr := &mlxscraper.RSSScraper{
ScraperID: scraperID,
URL: url,
Network: network,
Period: period,
}
scr.Init(slog, callback)
scr.Begin()
scrapers[scr.ID()] = scr
return scr
}
// TearDownAnnouncements terminates and cleans up the scrapers used to obtain network announcements
func TearDownAnnouncements() {
if rssmlxscr != nil {
rssmlxscr.End()
}
if fbmlxscr != nil {
fbmlxscr.End()
}
if contestscr != nil {
contestscr.End()
}
}
func handleControlScraper(scraperID string, enable bool, messageCallback func(message string)) {
if scraper, ok := scrapers[scraperID]; ok {
if enable && !scraper.Running() {
scraper.Begin()
messageCallback("✅")
} else if scraper.Running() {
scraper.End()
messageCallback("✅")
} else {
messageCallback("❌ already started/stopped")
}
return
}
scraperIDs := make([]string, len(scrapers))
i := 0
for id := range scrapers {
scraperIDs[i] = "`" + id + "`"
i++
}
messageCallback("🆖 second argument must be one of [" + strings.Join(scraperIDs, ",") + "]")
}