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Internet Engineering Course Lecture and Page 🙈 🎈

Home Page: https://1995parham-teaching.github.io/ie-lecture/

License: GNU General Public License v3.0

HTML 97.94% CSS 0.06% JavaScript 0.05% SCSS 0.06% C 1.71% WebAssembly 0.01% Shell 0.09% TypeScript 0.05% Just 0.01%

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more about concurrency model in javascript

Hi
In my opinion, async and await keywords are good topic to be added in slides.
Or at least it can be added to "further reading" or something like this.

Also more examples about promise and resolve could be helpful. for example these topics maybe good:

creating new promise
more information about resolving and rejecting promises
different states of a promise
Promise.all method
more about promise chaining and its best practices

thanks for your attention.

HTTP2 Server Push and Websocket

It would be great if we can have an introduction to HTTP2 Server Push and web socket during our first lecture because HTTP itself has issue with send notification to clients and these protocols could be usable for students.

اشتباه در آپلود پروژه میان ترم

جناب استاد الوانی
با سلام و احترام

از اینکه در اینجا این مشکل را بیان می‌کنم از شما عذرخواهی می‌کنم اما به دلیل کم بودن وقت ثبت نهایی نمرات و عدم دریافت پاسخ از ایمیل ارسالی به شما و با توجه به اینکه می‌دانم این روزها کمتر در دسترس هستید امیدوارم عذرخواهی بنده را پذیرا باشید.
به نظر می‌رسد در آپلود پروژه میان ترم بنده اشتباهی توسط من رخ داده و نمره بنده برای این پروژه لحاظ نشده است. شب تحویل پروژه پایان ترم اشتباها پروژه پایان ترم را به جای آن پروژه آپلود کردم و آپلود قبلی من که در زمان درست و بدون تاخیر انجام شده بود از بین رفت. لذا از شما خواهشمندم از طریق لینک زیر که ریپازیتوری گیت‌هاب پروژه بنده است آن را ارزیابی نمایید.

لازم به ذکر است که در حال حاضر در پورتال بنده نمره ۱۷.۴ ثبت شده که با توجه به تحویل همه تمارین و پروژه‌ها و بخش امتیازی آن‌ها منطقی به نظر نمی‌رسد.

http://github.com/Amirparsa-Sal/IE-Midterm

با تشکر
امیرپارسا سلمان‌خواه ۹۸۳۱۰۳۴

HTTPS Topic

Describe a captured example of https traffic for demonstrating its encryption

Fix cookie limitations in lecture-2

The cookie size constraints should be at most ... in here.

link in lecture-2 got outdated

The CAS Enterprise Single Sign-On link on page 56 of lecture 2 got outdated and returns Not Found 404 response.

confusion in a statement

As mentioned earlier in #7, slide 60 needs some changes to clear the confusion in these lines:

Thank You!

Broken JSON slides

Hi!
Slide number 16.13 in JSON and Thrift lecture (about JSON Schema) and many slides after that are unfortunately broken. Could you please fix them?

Thank you in advance.

improvement idea for MIMEtype example in http

I've just reviewing slides!
in slide 40 of HTTP lecture, we discussed about MIMEtypes. you added en example of image for it's MIMEtype.

but i think Check here isn't a good description for this example.
maybe adding some java-script code that show response of HEAD method on the resource would be better.

represent problem in bullets in http lecture

In slide 42 and 53 of http lecture, there is an Table of content available.

in this part you used & but it represent as &. I think it is something related to HTML escape characters.

do you have any idea to fix it?

`async` in javascript

Besides promises, discuss async as a new method for working with promises.

Large gap between assignments

In the fall-2020 course there was a large gap between assignments and this caused timing problems for students. For the next semesters front-end sections should takes less time.

slide code mismatch with what the demo button really does in javascript lecture!!

Hi! In 47.2, I expect the onclick="document.body.style.backgroundColor = this.innerHTML;" for Green button to change the background color of the body as the code declares, but when I click it here: 47.3, it just changes its own color:

I suggest that we change 47.2 to: onclick="this.style.backgroundColor = this.innerHTML;"

Provide more detail on using NATS as work queue

Here are the issues that I encountered during the time that I use NATS as working queue.

nats-io/nats.js#461

Got several python errors.

When I ran docker-compse up -d I got this:

Traceback (most recent call last):
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/urllib3/connectionpool.py", line 699, in urlopen
    httplib_response = self._make_request(
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/urllib3/connectionpool.py", line 394, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1279, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1325, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1274, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1034, in _send_output
    self.send(msg)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 974, in send
    self.connect()
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/docker/transport/unixconn.py", line 43, in connect
    sock.connect(self.unix_socket)
FileNotFoundError: [Errno 2] No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/requests/adapters.py", line 439, in send
    resp = conn.urlopen(
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/urllib3/connectionpool.py", line 755, in urlopen
    retries = retries.increment(
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/urllib3/util/retry.py", line 532, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/urllib3/packages/six.py", line 734, in reraise
    raise value.with_traceback(tb)
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/urllib3/connectionpool.py", line 699, in urlopen
    httplib_response = self._make_request(
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/urllib3/connectionpool.py", line 394, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1279, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1325, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1274, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1034, in _send_output
    self.send(msg)
  File "/usr/local/Cellar/[email protected]/3.9.7/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 974, in send
    self.connect()
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/docker/transport/unixconn.py", line 43, in connect
    sock.connect(self.unix_socket)
urllib3.exceptions.ProtocolError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/docker/api/client.py", line 214, in _retrieve_server_version
    return self.version(api_version=False)["ApiVersion"]
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/docker/api/daemon.py", line 181, in version
    return self._result(self._get(url), json=True)
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/docker/utils/decorators.py", line 46, in inner
    return f(self, *args, **kwargs)
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/docker/api/client.py", line 237, in _get
    return self.get(url, **self._set_request_timeout(kwargs))
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/requests/sessions.py", line 555, in get
    return self.request('GET', url, **kwargs)
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/requests/sessions.py", line 542, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/requests/sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/requests/adapters.py", line 498, in send
    raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/bin/docker-compose", line 33, in <module>
    sys.exit(load_entry_point('docker-compose==1.29.2', 'console_scripts', 'docker-compose')())
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/compose/cli/main.py", line 81, in main
    command_func()
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/compose/cli/main.py", line 200, in perform_command
    project = project_from_options('.', options)
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/compose/cli/command.py", line 60, in project_from_options
    return get_project(
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/compose/cli/command.py", line 152, in get_project
    client = get_client(
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/compose/cli/docker_client.py", line 41, in get_client
    client = docker_client(
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/compose/cli/docker_client.py", line 170, in docker_client
    client = APIClient(use_ssh_client=not use_paramiko_ssh, **kwargs)
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/docker/api/client.py", line 197, in __init__
    self._version = self._retrieve_server_version()
  File "/usr/local/Cellar/docker-compose/1.29.2/libexec/lib/python3.9/site-packages/docker/api/client.py", line 221, in _retrieve_server_version
    raise DockerException(
docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

set interval and set timeout in javascript slide

Hi
Unfortunately I'm a bit confused about setTimeout and setInterval methods.
As i expect, setTimeout would cause just one time run, not every.
but in this line description is this:

Alert "Hello" every 3 seconds (3000 milliseconds)

I think every should change to after.
Am i right?

long slides aren't readable

Hello,
some slides like 24 in lecture2 and 3 in lecture3 are too long so we can't read whole content in normal browser.
do you have any advice?

install go in ubuntu with snap

Since Ubuntu's go version is out of date, we usually install the latest version of Golang with snap or add 3rd party repository to our repositories.

So I propose something like this for ubuntu:

sudo snap install go --classic

instead of apt

What is "Integrity" Attribute?
https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity

How to generate integrity hash:
https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity#tools_for_generating_sri_hashes

Thank you

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