最新消息:20210816 当前crifan.com域名已被污染,为防止失联,请关注(页面右下角的)公众号

【代码分享】C#代码:FiverComScraper – 只抓取fiverr.com,网站改版之后

CodeShare crifan 2886浏览

【背景】

和:

【代码分享】C#代码:FiverComScraper – 只抓取fiverr.com,网站改版之前

类似,但是是现在,2013-09-12,

http://fiverr.com

网站已经改版,然后重新写了代码,去爬取网站的。

【FiverComScraper 代码】

1.截图:

【代码分享】C#代码:FiverComScraper – 只抓取fiverr.com,网站改版之前

一样,就不贴了。

2.完整项目代码下载:

FiverrComScraper_2013-09-12_afterWebsiteChange.7z

 

3.源码分享:

(1)frmFiverrComScraper.cs

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
835
836
837
838
839
/*
 * [File]
 * frmFiverrComScraper.cs
 *
 * [Function]
 * scrape fiverr.com
 *
 * [Note]
 *
 * [update]
 * 2013-09-12
 *
 * [Author]
 * Crifan Li
 *
 * [Contact]
 *
 * [History]
 */
 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
 
using System.Xml;
using System.IO;
using System.Web;
using Excel = Microsoft.Office.Interop.Excel;
using Microsoft.Office.Interop.Excel;
 
using HtmlAgilityPack;
 
 
/*
 * icons:
 *
 * search/find
 *
 * stop
 *
 * excel
 *
 * csv
 *
 * help
 */
 
namespace FiverComScraper
{
    public partial class frmFiverrComScraper : Form
    {
        const string fiverrComDomain = "http://fiverr.com";
        public crifanLib crifanLib;
        public DataGridViewButtonColumn gigUrlColumn = null;
        public static int girUrlColumnIdx = 12;
 
        //need get more gig to scrape or not
        bool needGetMore = true;
 
        enum search_status
        {
            SEARCH_STATUS_STOPPED,
            SEARCH_STATUS_SEARCHING,
            SEARCH_STATUS_PAUSED
        };
        search_status curSearchStatus = search_status.SEARCH_STATUS_STOPPED;
 
        public struct search_info
        {
            public int pageNum;
            public string searchUrl;
            public string searchRespHtml;
            public HtmlAgilityPack.HtmlDocument htmlDoc;
             
            //public XmlNamespaceManager m;
            //public HtmlNodeCollection gigDataList;
            //public int nodeIdx;
 
            public Object[] itemObjList;
            public int curItemIdx;
        };
        search_info curSearchInfo = new search_info();
 
        public struct gigSearchItemInfo
        {
            //{"title":"be your SEO teacher","title_full":"be your SEO teacher","duration":1,"price":"$5","rating":10,"rating_count":7,"is_featured":false,"gig_id":1082012,"gig_url":"/trickyguy/be-your-seo-teacher","img_medium":"<img src=\\"http://cdn3.fiverrcdn.com/photos/1082012/v2_162/seo-advice.jpg?1349431594\\"  alt=\\"be your SEO teacher\\"   >","video_thumb":false,"seller_name":"trickyguy","seller_created_at":"12 months","seller_country_name":"India","seller_country":"in","seller_url":"/trickyguy","seller_level":null,"gig_image":"<img src=\\"http://cdn3.fiverrcdn.com/photos/1082012/v2_162/seo-advice.jpg?1349431594\\"  alt=\\"be your SEO teacher\\"   >"},
            public string title;
            public string title_full;
            public int duration;
            public string price;
            public int rating;
            public int rating_count;
            public bool is_featured;
            public int gig_id;
            public string gig_url;
            public string img_medium;
            public string video_thumb;
            public string seller_name;
            public string seller_created_at;
            public string seller_country_name;
            public string seller_country;
            public string seller_url;
            public string seller_level; //null/"level_two_seller"/"top_rated_seller"/
            public string gig_image;
        };
 
        public frmFiverrComScraper()
        {
            AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve);
 
            InitializeComponent();
 
            crifanLib = new crifanLib();
            gigUrlColumn = new DataGridViewButtonColumn();
        }
 
        //for load embedded dll
        System.Reflection.Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
        {
            string dllName = args.Name.Contains(",") ? args.Name.Substring(0, args.Name.IndexOf(',')) : args.Name.Replace(".dll", "");
 
            dllName = dllName.Replace(".", "_");
 
            if (dllName.EndsWith("_resources")) return null;
 
            System.Resources.ResourceManager rm = new System.Resources.ResourceManager(GetType().Namespace + ".Properties.Resources", System.Reflection.Assembly.GetExecutingAssembly());
 
            byte[] bytes = (byte[])rm.GetObject(dllName);
 
            return System.Reflection.Assembly.Load(bytes);
        }
 
        private void frmFiverrComScraper_Load(object sender, EventArgs e)
        {
            //DataGridView init
            dgvSearchResult.ColumnCount = 12;
 
            dgvSearchResult.RowHeadersWidth = 60;
            dgvSearchResult.RowHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
            dgvSearchResult.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.DisableResizing;
 
            dgvSearchResult.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.None;
            dgvSearchResult.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.AllCellsExceptHeaders;
 
            //(1)title
            dgvSearchResult.Columns[0].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
            dgvSearchResult.Columns[0].HeaderText = "Title";
            dgvSearchResult.Columns[0].Width = 100;
            //(2)seller rating ( based on 1-100% format )
            dgvSearchResult.Columns[1].HeaderText = "Seller Rating";
            dgvSearchResult.Columns[1].Width = 49;
            //(3)estimated delivery ( based on 24 hours - 7days format )
            dgvSearchResult.Columns[2].HeaderText = "Estimated Delivery";
            dgvSearchResult.Columns[2].Width = 66;
            //(4)gig rating ( based on 1-100% )
            dgvSearchResult.Columns[3].HeaderText = "Gig Rating";
            dgvSearchResult.Columns[3].Width = 47;
            //(5)orders in que ( based on 0-9999 format )
            dgvSearchResult.Columns[4].HeaderText = "Orders in Queue";
            dgvSearchResult.Columns[4].Width = 54;
            //(6)level of the seller ( 1-3 )
            dgvSearchResult.Columns[5].HeaderText = "Seller Level";
            dgvSearchResult.Columns[5].Width = 47;
            //(7)haz video ( yes or no )
            dgvSearchResult.Columns[6].HeaderText = "Has Video";
            dgvSearchResult.Columns[6].Width = 42;
            //(8)express gigs (yes or no )
            dgvSearchResult.Columns[7].HeaderText = "Is Express Gig";
            dgvSearchResult.Columns[7].Width = 55;
            //(9)country flag ( display county flag )
            dgvSearchResult.Columns[8].HeaderText = "Country Flag";
            dgvSearchResult.Columns[8].Width = 106;
            //(10)+ve reviews and -ve reviews ( based on 1-9999 )
            dgvSearchResult.Columns[9].HeaderText = "Positive Reviews";
            dgvSearchResult.Columns[9].Width = 57;
            dgvSearchResult.Columns[10].HeaderText = "Negative Reviews";
            dgvSearchResult.Columns[10].Width = 60;
            //(11)top rated seller ( yes or no )
            dgvSearchResult.Columns[11].HeaderText = "Is Top Rated Seller";
            dgvSearchResult.Columns[11].Width = 50;
            ////(12)gig url
            //dgvSearchResult.Columns[12].HeaderText = "Gig Url";
            //dgvSearchResult.Columns[12].Width = 106;
 
            // Add a button column
            gigUrlColumn.HeaderText = "Gig Url";
            //gigUrlColumn.Name = "Gig Url name";
            gigUrlColumn.Text = "Buy Now";
            //gigUrlColumn.UseColumnTextForButtonValue = true;
            gigUrlColumn.Width = 106;
            dgvSearchResult.Columns.Add(gigUrlColumn);
 
            //this.WindowState = FormWindowState.Maximized;
 
            updateUI();
        }
 
        //update UI according current status
        private void updateUI()
        {
            if (curSearchStatus == search_status.SEARCH_STATUS_STOPPED)
            {
                btnSearch.Enabled = true;
                btnSearch.Text = "Search";
 
                btnPause.Enabled = false;
                btnStop.Enabled = false;
 
            }
            else if (curSearchStatus == search_status.SEARCH_STATUS_PAUSED)
            {
                btnSearch.Enabled = true;
                btnSearch.Text = "Continue Search";
 
                btnPause.Enabled = false;
                btnStop.Enabled = true;
            }
            else if (curSearchStatus == search_status.SEARCH_STATUS_SEARCHING)
            {
                btnSearch.Enabled = false;
                btnSearch.Text = "Searching";
 
                btnPause.Enabled = true;
                btnStop.Enabled = true;
            }
        }
 
        private void processEachGitItemInfo(gigSearchItemInfo gigItemInfo)
        {
            gigInfo singleGigInfo = new gigInfo();
            //(12)gig url
            //gigUrl
            singleGigInfo.gigUrl = fiverrComDomain + gigItemInfo.gig_url;
 
            string respGigHtml = crifanLib.getUrlRespHtml_multiTry(singleGigInfo.gigUrl);
            HtmlNode rootNode = crifanLib.htmlToHtmlDoc(respGigHtml).DocumentNode;
 
            //(1)title
            singleGigInfo.title = gigItemInfo.title_full;
 
            //(2)seller rating ( based on 1-100% format )
            //<div class="stats-row stats-row-ratings cf">
            //    <div class="stat ">91%<small>positive rating</small></div>
            //    <div class="stat-sml">by</div>
            //    <div class="stat">590<small>votes</small></div>
            //</div>
            HtmlNode positiveRaingNode = rootNode.SelectSingleNode("//div[@class='stats-row stats-row-ratings cf']/div[@class='stat ']");
            if (null != positiveRaingNode)
            {
                //"100%positive rating"
                string ratingPercentStr = "";
                if (crifanLib.extractSingleStr(@"(\d+)%", positiveRaingNode.InnerText, out ratingPercentStr))
                {
                    singleGigInfo.sellerRating = Int32.Parse(ratingPercentStr);
                }
                else
                {
  
                }
            }
            else
            {
 
            }
 
            //(3)estimated delivery ( based on 24 hours - 7days format )
            singleGigInfo.estimatedDeliveryStr = gigItemInfo.duration.ToString() + " days";
 
            //(4)gig rating ( based on 1-100% )
            singleGigInfo.gigRating = gigItemInfo.rating * 10;
 
            //(5)orders in que ( based on 0-9999 format )
            //<div class="stats-row stats-row-locked icn-orders cf">
            //    <div class="stat">0</div>
            //    <div class="stat"><small>orders<br>in queue</small></div>
            //</div>
            HtmlNode icnOrdersCfStatNode = rootNode.SelectSingleNode("//div[@class='stats-row stats-row-locked icn-orders cf']/div[@class='stat']");
            if (null != icnOrdersCfStatNode)
            {
                string orderInQueuesNumStr = icnOrdersCfStatNode.InnerText; //"0"
                singleGigInfo.ordersInQueue = Int32.Parse(orderInQueuesNumStr);
            }
            else
            {
 
            }
 
            //(6)level of the seller ( 1-3 )
            //(11)top rated seller ( yes or no )
            singleGigInfo.isTopRatedSeller = false;
            string strLevel = gigItemInfo.seller_level;
            switch(strLevel)
            {
                case "level_one_seller":
                    singleGigInfo.sellerLevel = 1;
                    break;
                case "level_two_seller":
                    singleGigInfo.sellerLevel = 2;
                    break;
                case "top_rated_seller":
                    singleGigInfo.sellerLevel = 3;
                    singleGigInfo.isTopRatedSeller = true;
                    break;
                default:
                    singleGigInfo.sellerLevel = 0;
                    break;
            }
 
            //(7)haz video ( yes or no )
            singleGigInfo.hasVideo = (!string.IsNullOrEmpty(gigItemInfo.video_thumb)); //false
             
            //(8)express gigs (yes or no )
            singleGigInfo.isExpressGig = gigItemInfo.is_featured;
             
            //(9)country flag ( display county flag )
            singleGigInfo.coutryFlag = gigItemInfo.seller_country_name; //"India"
 
 
            //(10)+ve reviews and -ve reviews ( based on 1-9999 )
 
            //<div class="reviews-summary" itemprop="aggregateRating" itemscope itemtype="http://schema.org/AggregateRating">
            //    <span class="summary summary-pos" itemprop="ratingValuePositive" content="5.0">7</span>
            //    <span class="summary summary-neg" itemprop="reviewCount" content="0">0</span>
            //</div>
 
            //<div class="reviews-summary" itemprop="aggregateRating" itemscope itemtype="http://schema.org/AggregateRating">
            //    <span class="summary summary-pos" itemprop="ratingValuePositive" content="4.6">537</span>
            //    <span class="summary summary-neg" itemprop="reviewCount" content="53">53</span>
            //</div>
 
            HtmlNode summaryPosNode = rootNode.SelectSingleNode("//div[@class='reviews-summary' and @itemprop='aggregateRating']/span[@class='summary summary-pos']");
            if (null != summaryPosNode)
            {
                string posibiteValue = summaryPosNode.InnerText; //"7"
                singleGigInfo.positiveReviews = Int32.Parse(posibiteValue);
            }
            else
            {
                singleGigInfo.positiveReviews = 0;
            }
            HtmlNode summaryNegNode = rootNode.SelectSingleNode("//div[@class='reviews-summary' and @itemprop='aggregateRating']/span[@class='summary summary-neg']");
            if (null != summaryNegNode)
            {
                string negativeValue = summaryNegNode.InnerText; //"0"
                singleGigInfo.negativeReviews = Int32.Parse(negativeValue);
            }
            else
            {
                singleGigInfo.negativeReviews = 0;
            }
 
            storeGigInfo(singleGigInfo);
 
            //update UI
            System.Windows.Forms.Application.DoEvents();
        }
 
        public struct gigInfo
        {
            public string title;
            public int sellerRating;
            public string estimatedDeliveryStr;
            public int gigRating;
            public int ordersInQueue;
            public int sellerLevel;
            public bool hasVideo;
            public bool isExpressGig;
            public string coutryFlag;
            public int positiveReviews;
            public int negativeReviews;
            public bool isTopRatedSeller;
            public string gigUrl;
        };
         
 
        private void processSingleGigSearchItemObject(Object singleGigItemObject)
        {
            Dictionary<string, Object> itemDict = (Dictionary<string, Object>)singleGigItemObject;
            gigSearchItemInfo itemInfo = new gigSearchItemInfo();
 
            Object objItemTitle;
            itemDict.TryGetValue("title", out objItemTitle);
            itemInfo.title = objItemTitle.ToString();
 
            Object objItemTitleFull;
            itemDict.TryGetValue("title_full", out objItemTitleFull);
            itemInfo.title_full = objItemTitleFull.ToString();
 
            Object objItemDuration;
            itemDict.TryGetValue("duration", out objItemDuration);
            itemInfo.duration = Int32.Parse(objItemDuration.ToString());
 
            Object objItemPrice;
            itemDict.TryGetValue("price", out objItemPrice);
            itemInfo.price = objItemPrice.ToString();
 
            Object objItemRating;
            itemDict.TryGetValue("rating", out objItemRating);
            itemInfo.rating = Int32.Parse(objItemRating.ToString());
 
            Object objItemRatingCount;
            itemDict.TryGetValue("rating_count", out objItemRatingCount);
            itemInfo.rating_count = Int32.Parse(objItemRatingCount.ToString());
 
            Object objItemIsFeatured;
            itemDict.TryGetValue("is_featured", out objItemIsFeatured);
            itemInfo.is_featured = Boolean.Parse(objItemIsFeatured.ToString());
 
            Object objItemGigId;
            itemDict.TryGetValue("gig_id", out objItemGigId);
            itemInfo.gig_id = Int32.Parse(objItemGigId.ToString());
 
            Object objItemGigUrl;
            itemDict.TryGetValue("gig_url", out objItemGigUrl);
            itemInfo.gig_url = objItemGigUrl.ToString();
 
            Object objItemImgMedium;
            itemDict.TryGetValue("img_medium", out objItemImgMedium);
            itemInfo.img_medium = objItemImgMedium.ToString();
 
            Object objItemVideoThumb;
            itemDict.TryGetValue("video_thumb", out objItemVideoThumb);
 
            //Convert.ToBoolean
            //if (Boolean.TryParse(objItemVideoThumb, out bVideoThumb))
            //if(objItemVideoThumb.GetType() == typeof(bool))
            if (objItemVideoThumb is bool)
            {
                //normal:
                //"video_thumb":false
                bool bVideoThumb = (bool)objItemVideoThumb;
 
                if (false == bVideoThumb)
                {
                    itemInfo.video_thumb = string.Empty;
                }
                else
                {
                    //unexpected ???
                    itemInfo.video_thumb = string.Empty;
                }
            }
            else if (objItemVideoThumb is string)
            {
                //special:
                //"video_thumb":"<img src=\\"http://static.dmcloud.net/4e5bf73e94a6f629c900461b/5172ce9c06361d76ae000218/thumb-162x121-f.jpeg\\"
 
                string strVideoThumb = (string)objItemVideoThumb;
                itemInfo.video_thumb = strVideoThumb;
            }
 
            Object objItemSellerName;
            itemDict.TryGetValue("seller_name", out objItemSellerName);
            itemInfo.seller_name = objItemSellerName.ToString();
 
            Object objItemSellerCreatedAt;
            itemDict.TryGetValue("seller_created_at", out objItemSellerCreatedAt);
            itemInfo.seller_created_at = objItemSellerCreatedAt.ToString();
 
            Object objItemSellerCountryName;
            itemDict.TryGetValue("seller_country_name", out objItemSellerCountryName);
            itemInfo.seller_country_name = objItemSellerCountryName.ToString();
 
            Object objItemSellerCountry;
            itemDict.TryGetValue("seller_country", out objItemSellerCountry);
            itemInfo.seller_country = objItemSellerCountry.ToString();
 
            Object objItemSellerUrl;
            itemDict.TryGetValue("seller_url", out objItemSellerUrl);
            itemInfo.seller_url = objItemSellerUrl.ToString();
 
            Object objItemSellerLevel;
            itemDict.TryGetValue("seller_level", out objItemSellerLevel);
            if (objItemSellerLevel != null)
            {
                itemInfo.seller_level = objItemSellerLevel.ToString();
            }
            else
            {
                //may be null
                itemInfo.seller_level = string.Empty;
            }
 
            Object objItemGigImage;
            itemDict.TryGetValue("gig_image", out objItemGigImage);
            itemInfo.gig_image = objItemGigImage.ToString();
 
            //itemInfoList.Add(itemInfo);
            processEachGitItemInfo(itemInfo);
        }
 
        private void btnSearch_Click(object sender, EventArgs e)
        {
            string respHtml = "";
            Dictionary<string, string> headerDict;
 
            //STEP1: access main page
            string fiverMainUrl = "http://fiverr.com/";
            respHtml = crifanLib.getUrlRespHtml_multiTry(fiverMainUrl);
 
            HtmlAgilityPack.HtmlDocument htmlDoc = crifanLib.htmlToHtmlDoc(respHtml);
            HtmlNode rootNode = htmlDoc.DocumentNode;
 
            //1.extract category_id
            //<div class="gig-carousel gallery loading cf carousel-noaction" data-json-path="/gigs/endless_page_as_json?host=homepage&amp;type=endless&amp;category_id=99912&amp;limit=30" data-load-more="true" data-hide-empty="false" data-gigs-shown="30" data-do-special="false" data-do-endless="true" data-box-id="hp99912_1" >
            HtmlNode datajsonPathNode = rootNode.SelectSingleNode("//div[@class and contains(@data-json-path, 'category_id=')]");
            string dataJsonPathValue = datajsonPathNode.Attributes["data-json-path"].Value;
            string categoryId = "";
            if(crifanLib.extractSingleStr(@"category_id=(\d+)", dataJsonPathValue, out categoryId))
            {
                //got category_id: 99912
            }
 
            //2. extract X-CSRF-Token value
            //<meta content="6j77ymABhWzqVarvSOXSIl4MwW3KrEESH8rofrLem4w=" name="csrf-token" />
            HtmlNode csrfTokenNode = rootNode.SelectSingleNode("//meta[@content and @name='csrf-token']");
            string csrfTokenValue = "";
            if (csrfTokenNode != null)
            {
                csrfTokenValue = csrfTokenNode.Attributes["content"].Value; //"K4Q+6uaGEvepuVLy5EwEDTddxbgzS3BJQ2zHIDdBFpk="
            }
 
            //STEP2: access search url
            curSearchInfo.searchUrl = "http://fiverr.com/gigs/search?utf8=%E2%9C%93"
                + "&search_in=everywhere"
                + "&query=" + HttpUtility.UrlEncode(txbKeyword.Text)
                + "&x=12"
                + "&y=12";
            headerDict = new Dictionary<string, string>();
            headerDict.Add("Referer", fiverMainUrl);
            respHtml = crifanLib.getUrlRespHtml_multiTry(curSearchInfo.searchUrl, headerDict: headerDict);
 
            if (curSearchStatus == search_status.SEARCH_STATUS_PAUSED)
            {
                needGetMore = true;
                //restore status
 
                //continue search
 
                curSearchStatus = search_status.SEARCH_STATUS_SEARCHING;
                updateUI();
 
                //curSearchInfo = curSearchInfo;
                 
                //for debug
                //int debugNum = 0;
                //int debugMaxNum = 3;
                 
                for (; curSearchInfo.curItemIdx < curSearchInfo.itemObjList.Length; curSearchInfo.curItemIdx++)
                {
                    Object itemObj = curSearchInfo.itemObjList[curSearchInfo.curItemIdx];
                    if (needGetMore)
                    {
                        processSingleGigSearchItemObject(itemObj);
 
                        ////for debug
                        //debugNum++;
                        //if (debugNum >= debugMaxNum)
                        //{
                        //    //debug
                        //    needGetMore = false;
                        //    break;
                        //}
                    }
                    else
                    {
                        break;
                    }
                }
                 
                //update for next page
                curSearchInfo.pageNum++;
            }
            else if (curSearchStatus == search_status.SEARCH_STATUS_STOPPED)
            {
                // new search -> clear previously searched result
                crifanLib.dgvClearContent(dgvSearchResult);
 
                curSearchStatus = search_status.SEARCH_STATUS_SEARCHING;
                updateUI();
 
                curSearchInfo = new search_info();
 
                curSearchInfo.pageNum = 1;
                curSearchInfo.curItemIdx = 0;
 
                needGetMore = true;
            }
            else
            {
                //unexpected status
 
                return;
            }
 
            while (needGetMore)
            {
                //curSearchInfo.searchUrl = "http://fiverr.com/gigs/search?utf8=%E2%9C%93"
                //    + "&query=" + HttpUtility.UrlEncode(txbKeyword.Text)
                //    + "&page=" + curSearchInfo.pageNum.ToString();
 
                //STEP3: search each page, got json, parse search result to list
                int numPerPage = 50;
                //page 1:
                //page 2:
                curSearchInfo.searchUrl = "http://fiverr.com/gigs/gigs_as_json?"
                    + "host=search"
                    + "&type=best_match"
                    + "&query_string=" + HttpUtility.UrlEncode(txbKeyword.Text)
                    + "&search_filter=auto"
                    + "&category_id=" + categoryId
                    + "&limit=" + numPerPage.ToString()
                    + "&page=" + curSearchInfo.pageNum.ToString();
                headerDict = new Dictionary<string, string>();
                headerDict.Add("X-CSRF-Token", csrfTokenValue);
                headerDict.Add("X-Requested-With", "XMLHttpRequest");
 
                string respGigJson = crifanLib.getUrlRespHtml(curSearchInfo.searchUrl, headerDict: headerDict);
 
                //got json string, processed like this:
                //{"gigs":[
                //{"title":"be your SEO teacher","title_full":"be your SEO teacher","duration":1,"price":"$5","rating":10,"rating_count":7,"is_featured":false,"gig_id":1082012,"gig_url":"/trickyguy/be-your-seo-teacher","img_medium":"<img src=\\"http://cdn3.fiverrcdn.com/photos/1082012/v2_162/seo-advice.jpg?1349431594\\"  alt=\\"be your SEO teacher\\"   >","video_thumb":false,"seller_name":"trickyguy","seller_created_at":"12 months","seller_country_name":"India","seller_country":"in","seller_url":"/trickyguy","seller_level":null,"gig_image":"<img src=\\"http://cdn3.fiverrcdn.com/photos/1082012/v2_162/seo-advice.jpg?1349431594\\"  alt=\\"be your SEO teacher\\"   >"},
                //{"title":"write SEO articles for you","title_full":"write SEO articles for you","duration":4,"price":"$5","rating":9,"rating_count":590,"is_featured":false,"gig_id":283403,"gig_url":"/betaomicronalph/write-seo-articles-for-you","img_medium":"<img src=\\"http://cdn3.fiverrcdn.com/photos/283403/v2_162/Apocalyptica02.jpg?1304543693\\"  alt=\\"write SEO articles for you\\"   >","video_thumb":false,"seller_name":"betaomicronalph","seller_created_at":"over 2 years","seller_country_name":"United States","seller_country":"us","seller_url":"/betaomicronalph","seller_level":"level_two_seller","gig_image":"<img src=\\"http://cdn3.fiverrcdn.com/photos/283403/v2_162/Apocalyptica02.jpg?1304543693\\"  alt=\\"write SEO articles for you\\"   >"},
                //....
                //],"total_results":519,"next_page":true}
 
                Dictionary<string, Object> gigsObjDict = (Dictionary<string, Object>)crifanLib.jsonToDict(respGigJson);
 
                bool bNextPage = false;
                Object objNextPage = null;
                if (gigsObjDict.ContainsKey("next_page") && gigsObjDict.TryGetValue("next_page", out objNextPage))
                {
                    bNextPage = (bool)objNextPage;
                }
                needGetMore = bNextPage;
 
                Object itemDictListObj = null;
                if (gigsObjDict.ContainsKey("gigs") && gigsObjDict.TryGetValue("gigs", out itemDictListObj))
                {
                    //Dictionary<string, Object>[] itemDictList = (Dictionary<string, Object>[])itemDictListObj;
                    curSearchInfo.itemObjList = (Object[])itemDictListObj;
 
                    //List<gigSearchItemInfo> itemInfoList = new List<gigSearchItemInfo>();
 
                    for (curSearchInfo.curItemIdx = 0; curSearchInfo.curItemIdx < curSearchInfo.itemObjList.Length; curSearchInfo.curItemIdx++)
                    {
                        Object itemObj = curSearchInfo.itemObjList[curSearchInfo.curItemIdx];
 
                        if (needGetMore)
                        {
                            processSingleGigSearchItemObject(itemObj);
 
                            ////for debug
                            //debugNum++;
                            //if (debugNum >= debugMaxNum)
                            //{
                            //    //debug
                            //    needGetMore = false;
                            //    break;
                            //}
                        }
                        else
                        {
                            break;
                        }
                    }//foreach (Object itemObj in itemObjList)
                     
                    //update for next page
                    curSearchInfo.pageNum++;
                }
                else
                {
                    //some error ?
                    needGetMore = false;
                }               
            };
        }
 
        private void btnPause_Click(object sender, EventArgs e)
        {
            if (curSearchStatus == search_status.SEARCH_STATUS_SEARCHING)
            {
                curSearchStatus = search_status.SEARCH_STATUS_PAUSED;
                updateUI();
 
                needGetMore = false;
 
                //store current status and progress
 
                //MessageBox.Show(curSearchInfo.gigDataList[0].ToString());
            }
 
        }
 
        private void btnStopSearching_Click(object sender, EventArgs e)
        {
            if ((curSearchStatus == search_status.SEARCH_STATUS_SEARCHING) ||
                (curSearchStatus == search_status.SEARCH_STATUS_PAUSED)
                )
            {
                curSearchStatus = search_status.SEARCH_STATUS_STOPPED;
                updateUI();
 
                needGetMore = false;
 
                //clear things
            }
        }
 
        void storeGigInfo(gigInfo singleGigInfo)
        {
            //DataGridViewButtonCell gigUrlCell = new DataGridViewButtonCell();
            //gigUrlCell.Value = "Buy Now";
            //gigUrlCell.Tag = singleGigInfo.gigUrl;
 
            dgvSearchResult.Rows.Add(
                singleGigInfo.title,
                singleGigInfo.sellerRating,
                singleGigInfo.estimatedDeliveryStr,
                singleGigInfo.gigRating,
                singleGigInfo.ordersInQueue,
                singleGigInfo.sellerLevel,
                singleGigInfo.hasVideo ? "yes" : "no",
                singleGigInfo.isExpressGig,
                singleGigInfo.coutryFlag,
                singleGigInfo.positiveReviews,
                singleGigInfo.negativeReviews,
                singleGigInfo.isTopRatedSeller);
                //gigUrlCell);
                //singleGigInfo.gigUrl);
 
            gigUrlColumn.DataGridView.Rows[dgvSearchResult.Rows.Count - 1].Cells[girUrlColumnIdx].Value = "Buy Now";
            gigUrlColumn.DataGridView.Rows[dgvSearchResult.Rows.Count - 1].Cells[girUrlColumnIdx].Tag = singleGigInfo.gigUrl;
             
            dgvSearchResult.Rows[dgvSearchResult.Rows.Count - 1].Selected = true;
            dgvSearchResult.FirstDisplayedScrollingRowIndex = dgvSearchResult.Rows.Count - 1;
            crifanLib.dgvDrawHeaderNum(dgvSearchResult);
 
            return;
        }
 
        private void dgvSearchResult_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            if ((e.RowIndex >= 0) && (e.ColumnIndex == girUrlColumnIdx))
            {
                DataGridViewButtonCell clickedButtonCell = (DataGridViewButtonCell)dgvSearchResult.Rows[e.RowIndex].Cells[e.ColumnIndex];
                //MessageBox.Show(clickedButtonCell.Value.ToString() + clickedButtonCell.Tag.ToString());
                System.Diagnostics.Process.Start(clickedButtonCell.Tag.ToString());
            }
        }
         
        private void btnSaveAll_Click(object sender, EventArgs e)
        {
            string outputFilename = "fiverrComScrapedResult" + ".xls";
            string fullFilename = Path.Combine(crifanLib.getSaveFolder(fbdSaveFolder), outputFilename);
 
            //List<int> omitColumnIdxList = new List<int>();
            ////omit the last column: View page
            //omitColumnIdxList.Add(dgvSearchResult.ColumnCount - 1);
            //crifanLib.dgvExportToExcel(dgvSearchResult, fullFilename, omitColumnIdxList: omitColumnIdxList);
 
            List<int> useTagColumnIdxList = new List<int>();
            //columns that use tag as value
            useTagColumnIdxList.Add(girUrlColumnIdx);
            crifanLib.dgvExportToExcel(dgvSearchResult, fullFilename, useTagColumnIdxList: useTagColumnIdxList);
 
            crifanLib.openFolderAndSelectFile(fullFilename);
        }
 
        private void openFolderAndSelectFile(string fullFilename)
        {
            System.Diagnostics.Process.Start("Explorer.exe", "/select," + fullFilename);
        }
 
        private void btnExportToCsv_Click(object sender, EventArgs e)
        {
            string outputFilename = "fiverrComScrapedResult.csv";
            string fullFilename = Path.Combine(crifanLib.getSaveFolder(fbdSaveFolder), outputFilename);
 
            //List<int> omitColumnIdxList = new List<int>();
            ////omit the last column: View page
            //omitColumnIdxList.Add(dgvSearchResult.ColumnCount - 1);
            //crifanLib.dgvExportToCsv(dgvSearchResult, fullFilename, omitColumnIdxList: omitColumnIdxList);
             
            List<int> useTagColumnIdxList = new List<int>();
            //columns that use tag as value
            useTagColumnIdxList.Add(girUrlColumnIdx);
            crifanLib.dgvExportToCsv(dgvSearchResult, fullFilename, delimiter: ",", useTagColumnIdxList: useTagColumnIdxList);
 
            crifanLib.openFolderAndSelectFile(fullFilename);
        }
         
        private void btnClearAll_Click(object sender, EventArgs e)
        {
            crifanLib.dgvClearContent(dgvSearchResult);
        }
 
        private void btnHelp_Click(object sender, EventArgs e)
        {
            string helpUrl = "http://giggladiator.com/help";
            System.Diagnostics.Process.Start(helpUrl);
        }
 
        private void btnCreateAlert_Click(object sender, EventArgs e)
        {
 
        }
 
        private void btnExpReaderToExcel_Click(object sender, EventArgs e)
        {
 
        }
 
        private void btnExpReaderToCsv_Click(object sender, EventArgs e)
        {
 
        }
 
    }
 
}

(2)

 

【总结】

转载请注明:在路上 » 【代码分享】C#代码:FiverComScraper – 只抓取fiverr.com,网站改版之后

81 queries in 0.209 seconds, using 19.70MB memory