1

00:00:04,890 --> 00:00:07,590

Creating a Tsipi client.



2

00:00:07,800 --> 00:00:08,610

Hello, everyone.



3

00:00:08,910 --> 00:00:13,040

Today, we're going to talk about how we can create a typical land.



4

00:00:13,260 --> 00:00:20,820

And I'm going to look into the TCAP client of a website and actually we're going to choose a famous



5

00:00:20,820 --> 00:00:21,320

website.



6

00:00:21,330 --> 00:00:23,010

So we were familiar with it.



7

00:00:23,370 --> 00:00:30,930

But in this video, we will look at the elements of the client before actually creating one and running



8

00:00:30,930 --> 00:00:32,110

the server over it.



9

00:00:32,490 --> 00:00:40,920

So if you go to Section six and create the new item file, let's write test VCP.



10

00:00:41,250 --> 00:00:48,440

OK, so here we are going to create the new file and I will import actually and get closer.



11

00:00:48,630 --> 00:00:54,690

I will import the circuit library of course, since we're working with it in discourse and then let's



12

00:00:54,690 --> 00:00:56,070

create some variable.



13

00:00:56,100 --> 00:01:04,000

So first of all, I will create a host which will be double, double, double the skilled army dot com.



14

00:01:05,180 --> 00:01:08,400

Then let's create the fourth variable.



15

00:01:08,490 --> 00:01:10,380

So first of all, create all the variables.



16

00:01:10,390 --> 00:01:15,440

And after that I will write the main function, which will use actually those variables.



17

00:01:15,900 --> 00:01:25,130

So the court will be 80, then the buffer size will be equal to four thousand and ninety six.



18

00:01:25,530 --> 00:01:34,530

And finally the address will be equal to our list of the host and the.



19

00:01:35,750 --> 00:01:36,950

First, OK.



20

00:01:38,030 --> 00:01:44,270

OK, so these are all the parameters who are going to use and let's create now our main function.



21

00:01:44,300 --> 00:01:54,590

So if name equals Main, then let's create a variable called Kalayaan Socket, and this will be called



22

00:01:54,590 --> 00:02:06,110

to a socket, that socket and inside our right socket dot a if a if I net.



23

00:02:06,230 --> 00:02:06,660

OK.



24

00:02:06,800 --> 00:02:07,360

And then.



25

00:02:08,590 --> 00:02:10,750

So kids dot.



26

00:02:11,610 --> 00:02:19,290

So extreme, and we usually write this in order to assess a Web page, then let's write client socket



27

00:02:19,290 --> 00:02:21,840

or a OK, how wrote it connect.



28

00:02:21,930 --> 00:02:27,630

And then we are going to pass the address, which consist of the hostname and the port.



29

00:02:27,660 --> 00:02:33,450

OK, this is everything needed for us to access certain server.



30

00:02:33,540 --> 00:02:35,980

OK, let's create now a while loop.



31

00:02:36,000 --> 00:02:37,260

So while.



32

00:02:38,320 --> 00:02:48,880

Through, OK, all right, data equals to get HTP 1.0.



33

00:02:50,440 --> 00:02:58,050

Backslash are backslash and backslash are backslash end, OK?



34

00:02:59,310 --> 00:03:00,340

And then if.



35

00:03:01,480 --> 00:03:03,550

Not there.



36

00:03:03,730 --> 00:03:07,440

So if we don't receive any data, we will break the world.



37

00:03:09,610 --> 00:03:21,010

And then they were right, client circuit dot sent and here I write the letter dot and called.



38

00:03:22,370 --> 00:03:31,450

And let's right then call principle, which is going to be the UTF eight, or does it actually then.



39

00:03:31,840 --> 00:03:32,990

All right, the data.



40

00:03:34,120 --> 00:03:34,790

Equals.



41

00:03:34,810 --> 00:03:40,210

So we're going to rewrite that their client socket that.



42

00:03:41,580 --> 00:03:52,870

Receive an eye right here the size that we inserted and if not there, then again, we're going to break



43

00:03:52,870 --> 00:03:53,670

the while loop.



44

00:03:53,830 --> 00:03:58,750

And finally, let's print the data that the call.



45

00:03:58,810 --> 00:04:04,270

So we're going to decode the data and then I'll write you T.F..



46

00:04:05,800 --> 00:04:06,820

Slash eight.



47

00:04:07,710 --> 00:04:08,090

OK.



48

00:04:09,650 --> 00:04:14,610

And then the right client socket dot clause.



49

00:04:14,840 --> 00:04:18,080

OK, so what is that code doing?



50

00:04:18,320 --> 00:04:19,740

Let's put a second call here.



51

00:04:20,030 --> 00:04:21,830

So what is that code doing?



52

00:04:22,190 --> 00:04:27,410

So first of all, when you provide all the parameters for the website we want to investigate, then



53

00:04:27,410 --> 00:04:34,260

we're creating the circuit to this website using its hostname import that is taught to the address here.



54

00:04:34,640 --> 00:04:40,040

And in this while loop, the only thing we're doing is assessing the data from the website.



55

00:04:40,370 --> 00:04:47,060

And here the data is going to be equal to the HTP representation of the website.



56

00:04:47,540 --> 00:04:51,590

And we say if we don't have the data, let's break the loop.



57

00:04:52,040 --> 00:04:54,140

But if we have data, we don't break.



58

00:04:54,590 --> 00:05:04,610

So if we actually have data, we are using the socket in order to send to the data from the server back



59

00:05:04,610 --> 00:05:13,550

to the client and the encoding this data with this principle, UTF eight and the data, the new data



60

00:05:13,550 --> 00:05:17,930

is going to be equal again to the socket.



61

00:05:17,940 --> 00:05:21,010

We're going to receive the data within the buffer size.



62

00:05:21,500 --> 00:05:24,320

And again, if there is no data, we'll break.



63

00:05:24,410 --> 00:05:30,650

And once we receive the data, we again want to decode this data because it's encoded.



64

00:05:30,650 --> 00:05:37,560

So we will not see any valuable information, but we're decoding it with the same principle here.



65

00:05:37,820 --> 00:05:39,620

So now we get the actual data.



66

00:05:39,650 --> 00:05:42,480

And finally, what we're doing, we are simply closing the socket.



67

00:05:42,950 --> 00:05:46,760

So let's go now to the terminal and let's actually run that code.



68

00:05:47,210 --> 00:05:47,620

That's right.



69

00:05:48,470 --> 00:05:51,370

And you can see that we have this impetus here.



70

00:05:51,380 --> 00:06:01,550

So if I write Python and then this GCP, not pure white, you can see that you are getting the HTML



71

00:06:01,550 --> 00:06:08,330

representation of this website, which is actually quite a long, long, long HTML.



72

00:06:08,540 --> 00:06:16,940

But this is proving that the data is actually being sent between the server and the client where the



73

00:06:16,940 --> 00:06:22,270

server is the actual site and the client is our computer, which is connected to Port eight.



74

00:06:22,820 --> 00:06:26,120

And for example, here I can even change the website.



75

00:06:26,330 --> 00:06:29,440

So let's do it as a Yahoo dot com.



76

00:06:29,810 --> 00:06:36,920

And if I do it, you can see that we are getting a different type of HTML client here, which is way



77

00:06:36,920 --> 00:06:39,050

more sort of comparing to mine, of course.



78

00:06:40,220 --> 00:06:47,000

But yes, you can actually type the website you want to get data from and you can obtain it quite easy



79

00:06:47,420 --> 00:06:49,280

using the sockets.



80

00:06:49,700 --> 00:06:53,990

So this is how you obtain data from Internet using sockets.



81

00:06:54,020 --> 00:07:00,950

Guys, thank you very much for watching that video and wait for the next one in which we are going to



82

00:07:00,950 --> 00:07:02,690

talk about Bonners.



83

00:07:02,900 --> 00:07:03,920

Thanks for watching.