/
Crawler_p.java
834 lines (754 loc) · 46.6 KB
/
Crawler_p.java
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
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
// Crawler_p.java
// (C) 2006 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 18.12.2006 on http://www.anomic.de
// this file was created using the an implementation from IndexCreate_p.java, published 02.12.2004
//
// LICENSE
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.Writer;
import java.net.MalformedURLException;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import net.yacy.cora.date.AbstractFormatter;
import net.yacy.cora.document.encoding.ASCII;
import net.yacy.cora.document.id.AnchorURL;
import net.yacy.cora.document.id.DigestURL;
import net.yacy.cora.document.id.MultiProtocolURL;
import net.yacy.cora.federate.solr.FailCategory;
import net.yacy.cora.federate.yacy.CacheStrategy;
import net.yacy.cora.protocol.ClientIdentification;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.cora.util.ConcurrentLog;
import net.yacy.cora.util.JSONException;
import net.yacy.cora.util.JSONObject;
import net.yacy.cora.util.SpaceExceededException;
import net.yacy.crawler.CrawlSwitchboard;
import net.yacy.crawler.FileCrawlStarterTask;
import net.yacy.crawler.data.Cache;
import net.yacy.crawler.data.CrawlProfile;
import net.yacy.crawler.data.NoticedURL.StackType;
import net.yacy.crawler.retrieval.SitemapImporter;
import net.yacy.crawler.robots.RobotsTxt;
import net.yacy.data.WorkTables;
import net.yacy.document.Document;
import net.yacy.document.VocabularyScraper;
import net.yacy.document.parser.html.ContentScraper;
import net.yacy.document.parser.html.TransformerWriter;
import net.yacy.kelondro.index.RowHandleSet;
import net.yacy.kelondro.util.FileUtils;
import net.yacy.kelondro.workflow.BusyThread;
import net.yacy.peers.NewsPool;
import net.yacy.repository.Blacklist.BlacklistType;
import net.yacy.search.Switchboard;
import net.yacy.search.SwitchboardConstants;
import net.yacy.search.index.Fulltext;
import net.yacy.search.index.Segment;
import net.yacy.search.query.SearchEventCache;
import net.yacy.search.schema.CollectionSchema;
import net.yacy.server.serverObjects;
import net.yacy.server.serverSwitch;
public class Crawler_p {
// this servlet does NOT create the Crawler servlet page content!
// this servlet starts a web crawl. The interface for entering the web crawl parameters is in IndexCreate_p.html
public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
// return variable that accumulates replacements
final Switchboard sb = (Switchboard) env;
// clean up all search events
SearchEventCache.cleanupEvents(true);
sb.index.clearCaches(); // every time the ranking is changed we need to remove old orderings
// inital values for AJAX Elements (without JavaScript)
final serverObjects prop = new serverObjects();
prop.put("rejected", 0);
// check for JSONP
if (post != null && post.containsKey("callback") ) {
final String jsonp = post.get("callback") + "([";
prop.put("jsonp-start", jsonp);
prop.put("jsonp-end", "])");
} else {
prop.put("jsonp-start", "");
prop.put("jsonp-end", "");
}
Segment segment = sb.index;
Fulltext fulltext = segment.fulltext();
String localSolr = "solr/select?core=collection1&q=*:*&start=0&rows=3";
String remoteSolr = env.getConfig(SwitchboardConstants.FEDERATED_SERVICE_SOLR_INDEXING_URL, localSolr);
if (!remoteSolr.endsWith("/")) remoteSolr = remoteSolr + "/";
prop.put("urlpublictextSolrURL", fulltext.connectedLocalSolr() ? localSolr : remoteSolr + "collection1/select?&q=*:*&start=0&rows=3");
prop.putNum("urlpublictextSize", fulltext.collectionSize());
prop.putNum("urlpublictextSegmentCount", fulltext.getDefaultConnector().getSegmentCount());
prop.put("webgraphSolrURL", fulltext.connectedLocalSolr() ? localSolr.replace("collection1", "webgraph") : remoteSolr + "webgraph/select?&q=*:*&start=0&rows=3");
prop.putNum("webgraphSize", fulltext.useWebgraph() ? fulltext.webgraphSize() : 0);
prop.putNum("webgraphSegmentCount", fulltext.useWebgraph() ? fulltext.getWebgraphConnector().getSegmentCount() : 0);
prop.putNum("citationSize", segment.citationCount());
prop.putNum("citationSegmentCount", segment.citationSegmentCount());
prop.putNum("rwipublictextSize", segment.RWICount());
prop.putNum("rwipublictextSegmentCount", segment.RWISegmentCount());
prop.put("list", "0");
prop.put("loaderSize", 0);
prop.put("loaderMax", 0);
prop.put("list-loader", 0);
int coreCrawlJobSize = sb.crawlQueues.coreCrawlJobSize();
int limitCrawlJobSize = sb.crawlQueues.limitCrawlJobSize();
int remoteTriggeredCrawlJobSize = sb.crawlQueues.remoteTriggeredCrawlJobSize();
int noloadCrawlJobSize = sb.crawlQueues.noloadCrawlJobSize();
int allsize = coreCrawlJobSize + limitCrawlJobSize + remoteTriggeredCrawlJobSize + noloadCrawlJobSize;
prop.put("localCrawlSize", coreCrawlJobSize);
prop.put("localCrawlState", "");
prop.put("limitCrawlSize", limitCrawlJobSize);
prop.put("limitCrawlState", "");
prop.put("remoteCrawlSize", remoteTriggeredCrawlJobSize);
prop.put("remoteCrawlState", "");
prop.put("noloadCrawlSize", noloadCrawlJobSize);
prop.put("noloadCrawlState", "");
prop.put("terminate-button", allsize == 0 ? 0 : 1);
prop.put("list-remote", 0);
prop.put("forwardToCrawlStart", "0");
prop.put("info", "0");
boolean debug = (post != null && post.containsKey("debug"));
if (post != null) {
String c = post.toString();
if (c.length() < 1000) ConcurrentLog.info("Crawl Start", c);
}
if (post != null && post.containsKey("queues_terminate_all")) {
// terminate crawls individually
sb.crawlQueues.noticeURL.clear();
for (final byte[] h: sb.crawler.getActive()) {
CrawlProfile p = sb.crawler.getActive(h);
if (CrawlSwitchboard.DEFAULT_PROFILES.contains(p.name())) continue;
if (p != null) sb.crawler.putPassive(h, p);
sb.crawler.removeActive(h);
sb.crawler.removePassive(h);
try {sb.crawlQueues.noticeURL.removeByProfileHandle(p.handle(), 10000);} catch (SpaceExceededException e) {}
}
// clear stacks
for (StackType stackType: StackType.values()) sb.crawlQueues.noticeURL.clear(stackType);
try { sb.cleanProfiles(); } catch (final InterruptedException e) {/* ignore this */}
// remove pause
sb.continueCrawlJob(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL);
sb.setConfig(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL + "_isPaused_cause", "");
sb.continueCrawlJob(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL);
sb.setConfig(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL + "_isPaused_cause", "");
prop.put("terminate-button", 0);
}
if (post != null && post.containsKey("continue")) {
// continue queue
final String queue = post.get("continue", "");
if ("localcrawler".equals(queue)) {
sb.continueCrawlJob(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL);
sb.setConfig(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL + "_isPaused_cause", "");
} else if ("remotecrawler".equals(queue)) {
sb.continueCrawlJob(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL);
sb.setConfig(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL + "_isPaused_cause", "");
}
}
if (post != null && post.containsKey("pause")) {
// pause queue
final String queue = post.get("pause", "");
if ("localcrawler".equals(queue)) {
sb.pauseCrawlJob(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL, "user request in Crawler_p from " + header.refererHost());
} else if ("remotecrawler".equals(queue)) {
sb.pauseCrawlJob(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL, "user request in Crawler_p from " + header.refererHost());
}
}
String queuemessage = sb.getConfig(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL + "_isPaused_cause", "");
if (queuemessage.length() == 0) {
prop.put("info-queue", 0);
} else {
prop.put("info-queue", 1);
prop.putHTML("info-queue_message", "pause reason: " + queuemessage);
}
if (post != null && post.containsKey("terminate")) try {
final String handle = post.get("handle", "");
// termination of a crawl: shift the crawl from active to passive
final CrawlProfile p = sb.crawler.getActive(handle.getBytes());
if (p != null) sb.crawler.putPassive(handle.getBytes(), p);
// delete all entries from the crawl queue that are deleted here
sb.crawler.removeActive(handle.getBytes());
sb.crawler.removePassive(handle.getBytes());
sb.crawlQueues.noticeURL.removeByProfileHandle(handle, 10000);
} catch (final SpaceExceededException e) {
ConcurrentLog.logException(e);
}
if (post != null && post.containsKey("crawlingstart")) {
// init crawl
if (sb.peers == null) {
prop.put("info", "3");
} else {
// remove crawlingFileContent before we record the call
String crawlingFileName = post.get("crawlingFile");
final File crawlingFile;
if (crawlingFileName == null || crawlingFileName.isEmpty()) {
crawlingFile = null;
} else {
if (crawlingFileName.startsWith("file://")) crawlingFileName = crawlingFileName.substring(7);
crawlingFile = new File(crawlingFileName);
}
if (crawlingFile != null && crawlingFile.exists()) {
post.remove("crawlingFile$file");
}
// prepare some filter that are adjusted in case that this is wanted
boolean storeHTCache = "on".equals(post.get("storeHTCache", "off"));
String newcrawlingMustMatch = post.get("mustmatch", CrawlProfile.MATCH_ALL_STRING);
String newcrawlingMustNotMatch = post.get("mustnotmatch", CrawlProfile.MATCH_NEVER_STRING);
if (newcrawlingMustMatch.length() < 2) newcrawlingMustMatch = CrawlProfile.MATCH_ALL_STRING; // avoid that all urls are filtered out if bad value was submitted
boolean fullDomain = "domain".equals(post.get("range", "wide")); // special property in simple crawl start
boolean subPath = "subpath".equals(post.get("range", "wide")); // special property in simple crawl start
final boolean restrictedcrawl = fullDomain || subPath || !CrawlProfile.MATCH_ALL_STRING.equals(newcrawlingMustMatch);
final boolean deleteage = restrictedcrawl && "age".equals(post.get("deleteold","off"));
Date deleteageDate = null;
if (deleteage) {
deleteageDate = timeParser(true, post.getInt("deleteIfOlderNumber", -1), post.get("deleteIfOlderUnit","year")); // year, month, day, hour
}
final boolean deleteold = (deleteage && deleteageDate != null) || (restrictedcrawl && post.getBoolean("deleteold"));
final String sitemapURLStr = post.get("sitemapURL","");
String crawlingStart0 = post.get("crawlingURL","").trim(); // the crawljob start url
String[] rootURLs0 = crawlingStart0.indexOf('\n') > 0 || crawlingStart0.indexOf('\r') > 0 ? crawlingStart0.split("[\\r\\n]+") : crawlingStart0.split(Pattern.quote("|"));
Set<DigestURL> rootURLs = new HashSet<DigestURL>();
String crawlName = "";
if (crawlingFile == null) for (String crawlingStart: rootURLs0) {
if (crawlingStart == null || crawlingStart.length() == 0) continue;
// add the prefix http:// if necessary
int pos = crawlingStart.indexOf("://",0);
if (pos == -1) {
if (crawlingStart.startsWith("ftp")) crawlingStart = "ftp://" + crawlingStart; else crawlingStart = "http://" + crawlingStart;
}
try {
DigestURL crawlingStartURL = new DigestURL(crawlingStart);
rootURLs.add(crawlingStartURL);
crawlName += ((crawlingStartURL.getHost() == null) ? crawlingStartURL.toNormalform(true) : crawlingStartURL.getHost()) + ',';
if (crawlingStartURL != null && (crawlingStartURL.isFile() || crawlingStartURL.isSMB())) storeHTCache = false;
} catch (final MalformedURLException e) {
ConcurrentLog.warn("Crawler_p", "crawl start url invalid: " + e.getMessage());
}
} else {
crawlName = crawlingFile.getName();
}
if (crawlName.endsWith(",")) crawlName = crawlName.substring(0, crawlName.length() - 1);
if (crawlName.length() > 64) {
crawlName = "crawl_for_" + rootURLs.size() + "_start_points_" + Integer.toHexString(crawlName.hashCode());
int p = crawlName.lastIndexOf(',');
if (p >= 8) crawlName = crawlName.substring(0, p);
}
if (crawlName.length() == 0 && sitemapURLStr.length() > 0) crawlName = "sitemap loader for " + sitemapURLStr;
// in case that a root url has a file protocol, then the site filter does not work, patch that:
if (fullDomain) {
for (DigestURL u: rootURLs) if (u.isFile()) {fullDomain = false; subPath = true; break;}
}
// delete old robots entries
for (DigestURL ru : rootURLs) {
sb.robots.delete(ru);
try {
if (ru.getHost() != null) { // might be null for file://
Cache.delete(RobotsTxt.robotsURL(RobotsTxt.getHostPort(ru)).hash());
}
} catch (IOException e) {}
}
try {sb.robots.clear();} catch (IOException e) {} // to be safe: clear all.
// set the crawl filter
String ipMustMatch = post.get("ipMustmatch", CrawlProfile.MATCH_ALL_STRING);
final String ipMustNotMatch = post.get("ipMustnotmatch", CrawlProfile.MATCH_NEVER_STRING);
if (ipMustMatch.length() < 2) ipMustMatch = CrawlProfile.MATCH_ALL_STRING;
final String countryMustMatch = post.getBoolean("countryMustMatchSwitch") ? post.get("countryMustMatchList", "") : "";
sb.setConfig("crawlingIPMustMatch", ipMustMatch);
sb.setConfig("crawlingIPMustNotMatch", ipMustNotMatch);
if (countryMustMatch.length() > 0) sb.setConfig("crawlingCountryMustMatch", countryMustMatch);
String crawlerNoDepthLimitMatch = post.get("crawlingDepthExtension", CrawlProfile.MATCH_NEVER_STRING);
final String indexUrlMustMatch = post.get("indexmustmatch", CrawlProfile.MATCH_ALL_STRING);
final String indexUrlMustNotMatch = post.get("indexmustnotmatch", CrawlProfile.MATCH_NEVER_STRING);
final String indexContentMustMatch = post.get("indexcontentmustmatch", CrawlProfile.MATCH_ALL_STRING);
final String indexContentMustNotMatch = post.get("indexcontentmustnotmatch", CrawlProfile.MATCH_NEVER_STRING);
final boolean crawlOrder = post.get("crawlOrder", "off").equals("on");
env.setConfig("crawlOrder", crawlOrder);
if (crawlOrder) crawlerNoDepthLimitMatch = CrawlProfile.MATCH_NEVER_STRING; // without limitation the crawl order does not work
int newcrawlingdepth = post.getInt("crawlingDepth", 8);
env.setConfig("crawlingDepth", Integer.toString(newcrawlingdepth));
if ((crawlOrder) && (newcrawlingdepth > 8)) newcrawlingdepth = 8;
boolean directDocByURL = "on".equals(post.get("directDocByURL", "off")); // catch also all linked media documents without loading them
env.setConfig("crawlingDirectDocByURL", directDocByURL);
final String collection = post.get("collection", "user");
env.setConfig("collection", collection);
// recrawl
final String recrawl = post.get("recrawl", "nodoubles"); // nodoubles, reload, scheduler
Date crawlingIfOlder = null;
if ("reload".equals(recrawl)) {
crawlingIfOlder = timeParser(true, post.getInt("reloadIfOlderNumber", -1), post.get("reloadIfOlderUnit","year")); // year, month, day, hour
}
env.setConfig("crawlingIfOlder", crawlingIfOlder == null ? Long.MAX_VALUE : crawlingIfOlder.getTime());
// store this call as api call
sb.tables.recordAPICall(post, "Crawler_p.html", WorkTables.TABLE_API_TYPE_CRAWLER, "crawl start for " + ((rootURLs.size() == 0) ? post.get("crawlingFile", "") : rootURLs.iterator().next().toNormalform(true)));
final boolean crawlingDomMaxCheck = "on".equals(post.get("crawlingDomMaxCheck", "off"));
final int crawlingDomMaxPages = (crawlingDomMaxCheck) ? post.getInt("crawlingDomMaxPages", -1) : -1;
env.setConfig("crawlingDomMaxPages", Integer.toString(crawlingDomMaxPages));
boolean followFrames = "on".equals(post.get("followFrames", "false"));
env.setConfig("followFrames", followFrames);
boolean obeyHtmlRobotsNoindex = "on".equals(post.get("obeyHtmlRobotsNoindex", "false"));
env.setConfig("obeyHtmlRobotsNoindex", obeyHtmlRobotsNoindex);
boolean obeyHtmlRobotsNofollow = "on".equals(post.get("obeyHtmlRobotsNofollow", "false"));
env.setConfig("obeyHtmlRobotsNofollow", obeyHtmlRobotsNofollow);
final boolean indexText = "on".equals(post.get("indexText", "false"));
env.setConfig("indexText", indexText);
final boolean indexMedia = "on".equals(post.get("indexMedia", "false"));
env.setConfig("indexMedia", indexMedia);
env.setConfig("storeHTCache", storeHTCache);
String defaultAgentName = sb.isIntranetMode() ? ClientIdentification.yacyIntranetCrawlerAgentName : ClientIdentification.yacyInternetCrawlerAgentName;
String agentName = post.get("agentName", defaultAgentName);
ClientIdentification.Agent agent = ClientIdentification.getAgent(agentName);
if (agent == null) agent = ClientIdentification.getAgent(defaultAgentName);
CacheStrategy cachePolicy = CacheStrategy.parse(post.get("cachePolicy", "iffresh"));
if (cachePolicy == null) cachePolicy = CacheStrategy.IFFRESH;
String crawlingMode = post.get("crawlingMode","url");
if ("file".equals(crawlingMode) && post.containsKey("crawlingFile")) {
newcrawlingMustNotMatch = CrawlProfile.MATCH_NEVER_STRING;
directDocByURL = false;
}
if ("sitemap".equals(crawlingMode)) {
newcrawlingMustMatch = CrawlProfile.MATCH_ALL_STRING;
newcrawlingMustNotMatch = CrawlProfile.MATCH_NEVER_STRING;
newcrawlingdepth = 0;
directDocByURL = false;
}
if ("sitelist".equals(crawlingMode)) {
newcrawlingMustNotMatch = CrawlProfile.MATCH_NEVER_STRING;
Set<DigestURL> newRootURLs = new HashSet<DigestURL>();
for (DigestURL sitelistURL: rootURLs) {
// download document
Document scraper;
try {
scraper = sb.loader.loadDocument(sitelistURL, CacheStrategy.IFFRESH, BlacklistType.CRAWLER, agent);
// get links and generate filter
for (DigestURL u: scraper.getHyperlinks().keySet()) {
newRootURLs.add(u);
}
} catch (final IOException e) {
ConcurrentLog.logException(e);
}
}
rootURLs = newRootURLs;
crawlingMode = "url";
if ((fullDomain || subPath) && newcrawlingdepth > 0) newcrawlingMustMatch = CrawlProfile.MATCH_ALL_STRING; // to prevent that there is a restriction on the original urls
}
// delete all error urls for that domain
// and all urls for that host from the crawl queue
Set<String> hosthashes = new HashSet<String>();
boolean anysmbftporpdf = false;
for (DigestURL u : rootURLs) {
sb.index.fulltext().remove(u.hash());
hosthashes.add(u.hosthash());
if ("smb.ftp".indexOf(u.getProtocol()) >= 0 || "pdf".equals(MultiProtocolURL.getFileExtension(u.getFileName()))) anysmbftporpdf = true;
}
sb.crawlQueues.removeHosts(hosthashes);
sb.index.fulltext().commit(true);
boolean crawlingQ = anysmbftporpdf || "on".equals(post.get("crawlingQ", "off")) || "sitemap".equals(crawlingMode);
env.setConfig("crawlingQ", crawlingQ);
// compute mustmatch filter according to rootURLs
if ((fullDomain || subPath) && newcrawlingdepth > 0) {
String siteFilter = ".*";
if (fullDomain) {
siteFilter = CrawlProfile.siteFilter(rootURLs);
if (deleteold) {
sb.index.fulltext().deleteStaleDomainHashes(hosthashes, deleteageDate);
}
} else if (subPath) {
siteFilter = CrawlProfile.subpathFilter(rootURLs);
if (deleteold) {
for (DigestURL u: rootURLs) {
String basepath = u.toNormalform(true);
if (!basepath.endsWith("/")) {int p = basepath.lastIndexOf("/"); if (p > 0) basepath = basepath.substring(0, p + 1);}
int count = sb.index.fulltext().remove(basepath, deleteageDate);
if (count > 0) ConcurrentLog.info("Crawler_p", "deleted " + count + " documents for host " + u.getHost());
}
}
}
if (CrawlProfile.MATCH_ALL_STRING.equals(newcrawlingMustMatch)) {
newcrawlingMustMatch = siteFilter;
} else if (!CrawlProfile.MATCH_ALL_STRING.equals(siteFilter)) {
// combine both
newcrawlingMustMatch = "(" + newcrawlingMustMatch + ")|(" + siteFilter + ")";
}
}
// check if the crawl filter works correctly
try {
Pattern mmp = Pattern.compile(newcrawlingMustMatch);
for (DigestURL u: rootURLs) {
assert mmp.matcher(u.toNormalform(true)).matches() : "pattern " + mmp.toString() + " does not match url " + u.toNormalform(true);
}
} catch (final PatternSyntaxException e) {
prop.put("info", "4"); // crawlfilter does not match url
prop.putHTML("info_newcrawlingfilter", newcrawlingMustMatch);
prop.putHTML("info_error", e.getMessage());
}
boolean hasCrawlstartDataOK = !crawlName.isEmpty();
if (hasCrawlstartDataOK) {
// check crawlurl was given in sitecrawl
if ("url".equals(crawlingMode) && rootURLs.size() == 0) hasCrawlstartDataOK = false;
}
String snapshotsMaxDepthString = post.get("snapshotsMaxDepth", "-1");
int snapshotsMaxDepth = Integer.parseInt(snapshotsMaxDepthString);
boolean snapshotsLoadImage = post.getBoolean("snapshotsLoadImage");
boolean snapshotsReplaceOld = post.getBoolean("snapshotsReplaceOld");
String snapshotsMustnotmatch = post.get("snapshotsMustnotmatch", "");
// get vocabulary scraper info
JSONObject vocabulary_scraper = new JSONObject(); // key = vocabulary_name, value = properties with key = type (i.e. 'class') and value = keyword in context
for (String key: post.keySet()) {
if (key.startsWith("vocabulary_")) {
if (key.endsWith("_class")) {
String vocabulary = key.substring(11, key.length() - 6);
String value = post.get(key);
if (value != null && value.length() > 0) {
JSONObject props;
try {
props = vocabulary_scraper.getJSONObject(vocabulary);
} catch (JSONException e) {
props = new JSONObject();
vocabulary_scraper.put(vocabulary, props);
}
props.put("class", value);
}
}
}
}
int timezoneOffset = post.getInt("timezoneOffset", 0);
// in case that we crawl from a file, load that file and re-compute mustmatch pattern
List<AnchorURL> hyperlinks_from_file = null;
if ("file".equals(crawlingMode) && post.containsKey("crawlingFile") && crawlingFile != null) {
final String crawlingFileContent = post.get("crawlingFile$file", "");
try {
if (newcrawlingdepth > 0) {
if (fullDomain) {
/* Crawl is restricted to start domains or sub-paths : we have to get all the start links now.
* Otherwise we can get them asynchronously later, thus allowing to handle more efficiently large start crawlingFiles */
hyperlinks_from_file = crawlingFileStart(crawlingFile, timezoneOffset, crawlingFileContent);
newcrawlingMustMatch = CrawlProfile.siteFilter(hyperlinks_from_file);
} else if (subPath) {
/* Crawl is restricted to start domains or sub-paths : we have to get all the start links now.
* Otherwise we can get them asynchronously later, thus allowing to handle more efficiently large start crawlingFiles */
hyperlinks_from_file = crawlingFileStart(crawlingFile, timezoneOffset, crawlingFileContent);
newcrawlingMustMatch = CrawlProfile.subpathFilter(hyperlinks_from_file);
}
}
} catch (final Exception e) {
// mist
prop.put("info", "7"); // Error with file
prop.putHTML("info_crawlingStart", crawlingFileName);
prop.putHTML("info_error", e.getMessage());
ConcurrentLog.logException(e);
}
sb.continueCrawlJob(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL);
}
// prepare a new crawling profile
final CrawlProfile profile;
byte[] handle;
if (hasCrawlstartDataOK) {
profile = new CrawlProfile(
crawlName,
newcrawlingMustMatch,
newcrawlingMustNotMatch,
ipMustMatch,
ipMustNotMatch,
countryMustMatch,
crawlerNoDepthLimitMatch,
indexUrlMustMatch,
indexUrlMustNotMatch,
indexContentMustMatch,
indexContentMustNotMatch,
newcrawlingdepth,
directDocByURL,
crawlingIfOlder,
crawlingDomMaxPages,
crawlingQ, followFrames,
obeyHtmlRobotsNoindex, obeyHtmlRobotsNofollow,
indexText,
indexMedia,
storeHTCache,
crawlOrder,
snapshotsMaxDepth,
snapshotsLoadImage,
snapshotsReplaceOld,
snapshotsMustnotmatch,
cachePolicy,
collection,
agentName,
new VocabularyScraper(vocabulary_scraper),
timezoneOffset);
handle = ASCII.getBytes(profile.handle());
// before we fire up a new crawl, we make sure that another crawl with the same name is not running
sb.crawler.removeActive(handle);
sb.crawler.removePassive(handle);
try {
sb.crawlQueues.noticeURL.removeByProfileHandle(profile.handle(), 10000);
} catch (final SpaceExceededException e1) { }
} else {
profile = null;
handle = null;
}
// start the crawl
if ("url".equals(crawlingMode)) {
if (rootURLs.size() == 0) {
prop.put("info", "5"); //Crawling failed
prop.putHTML("info_crawlingURL", "(no url given)");
prop.putHTML("info_reasonString", "you must submit at least one crawl url");
} else {
// stack requests
sb.crawler.putActive(handle, profile);
final Set<DigestURL> successurls = new HashSet<DigestURL>();
final Map<DigestURL,String> failurls = new HashMap<DigestURL, String>();
sb.stackURLs(rootURLs, profile, successurls, failurls);
if (failurls.size() == 0) {
// liftoff!
prop.put("info", "8");
prop.putHTML("info_crawlingURL", post.get("crawlingURL"));
// generate a YaCyNews if the global flag was set
if (!sb.isRobinsonMode() && crawlOrder) {
final Map<String, String> m = new HashMap<String, String>(profile); // must be cloned
m.remove("specificDepth");
m.remove("indexText");
m.remove("indexMedia");
m.remove("remoteIndexing");
m.remove("xsstopw");
m.remove("xpstopw");
m.remove("xdstopw");
m.remove("storeTXCache");
m.remove("storeHTCache");
m.remove("generalFilter");
m.remove("specificFilter");
m.put("intention", post.get("intention", "").replace(',', '/'));
if (successurls.size() > 0) { // just include at least one of the startURL's in case of multiple for the news service
m.put("startURL", successurls.iterator().next().toNormalform(true));
}
sb.peers.newsPool.publishMyNews(sb.peers.mySeed(), NewsPool.CATEGORY_CRAWL_START, m);
}
} else {
StringBuilder fr = new StringBuilder();
for (Map.Entry<DigestURL, String> failure: failurls.entrySet()) {
sb.crawlQueues.errorURL.push(failure.getKey(), 0, null, FailCategory.FINAL_LOAD_CONTEXT, failure.getValue(), -1);
fr.append(failure.getValue()).append('/');
}
prop.put("info", "5"); //Crawling failed
prop.putHTML("info_crawlingURL", (post.get("crawlingURL")));
prop.putHTML("info_reasonString", fr.toString());
}
if (successurls.size() > 0) sb.continueCrawlJob(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL);
}
} else if ("sitemap".equals(crawlingMode)) {
try {
final DigestURL sitemapURL = sitemapURLStr.indexOf("//") > 0 ? new DigestURL(sitemapURLStr) : new DigestURL(rootURLs.iterator().next(), sitemapURLStr); // fix for relative paths which should not exist but are used anyway
sb.crawler.putActive(handle, profile);
final SitemapImporter importer = new SitemapImporter(sb, sitemapURL, profile);
importer.start();
sb.continueCrawlJob(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL);
} catch (final Exception e) {
// mist
prop.put("info", "6");//Error with url
prop.putHTML("info_crawlingStart", sitemapURLStr);
prop.putHTML("info_error", e.getMessage());
ConcurrentLog.logException(e);
}
} else if ("file".equals(crawlingMode)) {
if (post.containsKey("crawlingFile") && crawlingFile != null) {
try {
if(newcrawlingdepth > 0 && (fullDomain || subPath)) {
/* All links must have already been loaded because they are the part of the newcrawlingMustMatch filter */
if(hyperlinks_from_file != null) {
sb.crawler.putActive(handle, profile);
sb.crawlStacker.enqueueEntriesAsynchronous(sb.peers.mySeed().hash.getBytes(), profile.handle(), hyperlinks_from_file, profile.timezoneOffset());
}
} else {
/* No restriction on domains or subpath : we scrape now links and asynchronously push them to the crawlStacker */
final String crawlingFileContent = post.get("crawlingFile$file", "");
final ContentScraper scraper = new ContentScraper(new DigestURL(crawlingFile), 10000000,
new VocabularyScraper(), profile.timezoneOffset());
FileCrawlStarterTask crawlStarterTask = new FileCrawlStarterTask(crawlingFile, crawlingFileContent, scraper, profile,
sb.crawlStacker, sb.peers.mySeed().hash.getBytes());
sb.crawler.putActive(handle, profile);
crawlStarterTask.start();
}
} catch (final PatternSyntaxException e) {
prop.put("info", "4"); // crawlfilter does not match url
prop.putHTML("info_newcrawlingfilter", newcrawlingMustMatch);
prop.putHTML("info_error", e.getMessage());
} catch (final Exception e) {
// mist
prop.put("info", "7"); // Error with file
prop.putHTML("info_crawlingStart", crawlingFileName);
prop.putHTML("info_error", e.getMessage());
ConcurrentLog.logException(e);
}
sb.continueCrawlJob(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL);
}
}
}
}
/*
* <input id="customPPM" name="customPPM" type="number" min="10" max="30000" style="width:46px" value="#[customPPMdefault]#" />PPM
<input id="latencyFactor" name="latencyFactor" type="number" min="0.1" max="3.0" step="0.1" style="width:32px" value="#[latencyFactorDefault]#" />LF
<input id="MaxSameHostInQueue" name="MaxSameHostInQueue" type="number" min="1" max="30" style="width:32px" value="#[MaxSameHostInQueueDefault]#" />MH
<input type="submit" name="crawlingPerformance" value="set" />
(<a href="/Crawler_p.html?crawlingPerformance=minimum">min</a>/<a href="/Crawler_p.html?crawlingPerformance=maximum">max</a>)
</td>
*/
if (post != null && post.containsKey("crawlingPerformance")) {
final String crawlingPerformance = post.get("crawlingPerformance", "custom");
final long LCbusySleep1 = sb.getConfigLong(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL_BUSYSLEEP, 1000L);
int wantedPPM = (LCbusySleep1 == 0) ? 30000 : (int) (60000L / LCbusySleep1);
try {
wantedPPM = post.getInt("customPPM", wantedPPM);
} catch (final NumberFormatException e) {}
if ("minimum".equals(crawlingPerformance.toLowerCase())) wantedPPM = 10;
if ("maximum".equals(crawlingPerformance.toLowerCase())) wantedPPM = 30000;
int wPPM = wantedPPM;
if ( wPPM <= 0 ) {
wPPM = 1;
}
if ( wPPM >= 30000 ) {
wPPM = 30000;
}
final int newBusySleep = 60000 / wPPM; // for wantedPPM = 10: 6000; for wantedPPM = 1000: 60
final float loadprereq = wantedPPM <= 10 ? 1.0f : wantedPPM <= 100 ? 2.0f : wantedPPM >= 1000 ? 8.0f : 3.0f;
BusyThread thread;
thread = sb.getThread(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL);
if ( thread != null ) {
sb.setConfig(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL_BUSYSLEEP, thread.setBusySleep(newBusySleep));
sb.setConfig(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL_LOADPREREQ, thread.setLoadPreReqisite(loadprereq));
thread.setLoadPreReqisite(loadprereq);
thread.setIdleSleep(2000);
}
float latencyFactor = post.getFloat("latencyFactor", 0.5f);
int MaxSameHostInQueue = post.getInt("MaxSameHostInQueue", 20);
env.setConfig(SwitchboardConstants.CRAWLER_LATENCY_FACTOR, latencyFactor);
env.setConfig(SwitchboardConstants.CRAWLER_MAX_SAME_HOST_IN_QUEUE, MaxSameHostInQueue);
}
// performance settings
final long LCbusySleep = env.getConfigLong(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL_BUSYSLEEP, 1000L);
final int LCppm = (int) (60000L / Math.max(1,LCbusySleep));
prop.put("customPPMdefault", Integer.toString(LCppm));
prop.put("latencyFactorDefault", env.getConfigFloat(SwitchboardConstants.CRAWLER_LATENCY_FACTOR, 0.5f));
prop.put("MaxSameHostInQueueDefault", env.getConfigInt(SwitchboardConstants.CRAWLER_MAX_SAME_HOST_IN_QUEUE, 20));
// generate crawl profile table
int count = 0;
boolean dark = true;
final int domlistlength = (post == null) ? 160 : post.getInt("domlistlength", 160);
CrawlProfile profile;
// put active crawls into list
String hosts = "";
for (final byte[] h: sb.crawler.getActive()) {
profile = sb.crawler.getActive(h);
if (CrawlSwitchboard.DEFAULT_PROFILES.contains(profile.name())) continue;
profile.putProfileEntry("crawlProfilesShow_list_", prop, true, dark, count, domlistlength);
prop.put("crawlProfilesShow_list_" + count + "_debug", debug ? 1 : 0);
if (debug) {
RowHandleSet urlhashes = sb.crawler.getURLHashes(h);
prop.put("crawlProfilesShow_list_" + count + "_debug_count", urlhashes == null ? "unknown" : Integer.toString(urlhashes.size()));
}
hosts = hosts + "," + profile.name();
dark = !dark;
count++;
}
prop.put("crawlProfilesShow_debug", debug ? 1 : 0);
prop.put("crawlProfilesShow_list", count);
prop.put("crawlProfilesShow_count", count);
prop.put("crawlProfilesShow", count == 0 ? 0 : 1);
prop.put("crawlProfilesShow_linkstructure", 0);
if (post != null) { // handle config button to display graphic
if (post.get("hidewebstructuregraph") != null) sb.setConfig(SwitchboardConstants.DECORATION_GRAFICS_LINKSTRUCTURE, false);
if (post.get("showwebstructuregraph") != null) sb.setConfig(SwitchboardConstants.DECORATION_GRAFICS_LINKSTRUCTURE, true);
}
if (count > 0 && sb.getConfigBool(SwitchboardConstants.DECORATION_GRAFICS_LINKSTRUCTURE, true)) {
// collect the host names for 'wide' crawls which can be visualized
boolean showLinkstructure = hosts.length() > 0 && !hosts.contains("file:");
if (showLinkstructure) {
StringBuilder q = new StringBuilder();
hosts = hosts.substring(1);
q.append(CollectionSchema.host_s.getSolrFieldName()).append(':').append(hosts).append(" OR ").append(CollectionSchema.host_s.getSolrFieldName()).append(':').append("www.").append(hosts);
try {
prop.put("crawlProfilesShow_linkstructure", count == 1 && sb.index.fulltext().getDefaultConnector().getCountByQuery(q.toString()) > 0 ? 1 : 2);
prop.put("crawlProfilesShow_linkstructure_hosts", hosts);
} catch (IOException e) {
}
}
}
// return rewrite properties
return prop;
}
/**
* Scrape crawlingFile or crawlingFileContent and get all anchor links from it.
* @param crawlingFile crawl start file (must not be null)
* @param timezoneOffset local timezone offset
* @param crawlingFileContent content of the crawling file (optional : used only when crawlingFile does no exists)
* @return all the anchor links from the crawling file
* @throws MalformedURLException
* @throws IOException
* @throws FileNotFoundException
*/
private static List<AnchorURL> crawlingFileStart(final File crawlingFile, int timezoneOffset,
final String crawlingFileContent) throws MalformedURLException, IOException, FileNotFoundException {
List<AnchorURL> hyperlinks_from_file;
// check if the crawl filter works correctly
final ContentScraper scraper = new ContentScraper(new DigestURL(crawlingFile), 10000000, new VocabularyScraper(), timezoneOffset);
final Writer writer = new TransformerWriter(null, null, scraper, null, false);
if((crawlingFileContent == null || crawlingFileContent.isEmpty()) && crawlingFile != null) {
/* Let's report here detailed error to help user when he selected a wrong file */
if(!crawlingFile.exists()) {
throw new FileNotFoundException(crawlingFile.getAbsolutePath() + " does not exists");
}
if(!crawlingFile.isFile()) {
throw new FileNotFoundException(crawlingFile.getAbsolutePath() + " exists but is not a regular file");
}
if(!crawlingFile.canRead()) {
throw new IOException("Can not read : " + crawlingFile.getAbsolutePath());
}
}
if (crawlingFile != null) {
FileInputStream inStream = null;
try {
inStream = new FileInputStream(crawlingFile);
FileUtils.copy(inStream, writer);
} finally {
if(inStream != null) {
try {
inStream.close();
} catch(IOException ignoredException) {
ConcurrentLog.info("Crawler_p", "Could not close crawlingFile : " + crawlingFile.getAbsolutePath());
}
}
}
} else {
FileUtils.copy(crawlingFileContent, writer);
}
writer.close();
// get links and generate filter
hyperlinks_from_file = scraper.getAnchors();
return hyperlinks_from_file;
}
private static Date timeParser(final boolean recrawlIfOlderCheck, final int number, final String unit) {
if (!recrawlIfOlderCheck) return null;
if ("year".equals(unit)) return new Date(System.currentTimeMillis() - number * AbstractFormatter.normalyearMillis);
if ("month".equals(unit)) return new Date(System.currentTimeMillis() - number * AbstractFormatter.monthAverageMillis);
if ("day".equals(unit)) return new Date(System.currentTimeMillis() - number * AbstractFormatter.dayMillis);
if ("hour".equals(unit)) return new Date(System.currentTimeMillis() - number * AbstractFormatter.hourMillis);
if ("minute".equals(unit)) return new Date(System.currentTimeMillis() - number * AbstractFormatter.minuteMillis);
return null;
}
}