I frequently need to access to the router to do some simple task: restart, switch on/off some options... And the repeated process really annoying me :(
I want to write a batch script/program which do it for me.
I can't flash the router with the DD-WRT firmware to access it via console. The policy don't allow it.
Then I come up with an idea that use Qt write a small program which will interact with the browser. Access the router IP, fill the password, browse to the option page...
However, AFAIK, I can only do such thing with a web-driver like selenium, which is unavailable with Qt.
So is there any solution? I really like the idea use Qt or a script to solve the problem.
Any ideas are appreciated :)
It is possible to just send form response and don't load the page in the QWebFrame. You can use some tool (firebug, wireshark) to catch the request/response when you click "save" and learn what to send to your router everytime you want this configuration. It will be simple HTTP GET or POST request. That request can be done with curl, wget or your simple QT application using QNetworkRequest or wethewer.
It will be more tricky if it needs authentification other then HTTP basic auth. You will need two requests
first one - authenticate and save all cookies
second one - set parameters and add all cookies to response
Related
I'm creating a website for a local establishment that uses Ifood. Ifood provides an API that allows you to check information, both regarding establishments and incoming orders.
The code is ready, but I can only show a new order update when manually refreshing the page. Which is a bit shippable. I thought about putting an automatic update with JavaScript at the given time, but it would be an ugly workaround.
In this case, I'm getting JSON data, but in a more general context.
How could I refresh the page as soon as new data appears?
An automatic update with Javascript might not be as dirty as you think. Even smartphone push notifications are really just occasionally polling under the hood.
If you really want to push from your server, WebSockets or server-side events are what you want. Unfortunately, it seems this kind of setup is not natively supported by Django.
Another option could be to use a paid service like Pusher.com. Such services usually let you listen for an even in JS, then call an API endpoint to trigger it from your server. This will work well on Django or any other server setup.
I am fairly new in web development and I decided to handle a user's availability to send a POST request to server. However, I do not know even whether it is possible or not but when a user close my Django site without using logout button (For example close the browser or tab), in order to understand the user is offline or online, I want to send a request to server. As a result, when the server does not get an answer from the user for a while, it automatically logout the user.
Can you tell me is it a good way to handle a user's availability and first of all is it a realistic solution? If it is, can you suggest me a document or example that helps me please.
I agree to to the answer of #Mounir. That's not related to django, if you want to know when a user is "disconnected"(close the tab or window) you need to use javascript, in concrete you need to use Sockets.
I recommend you this ones:
http://socket.io/
https://github.com/centrifugal/centrifugo
I'm using centrifugo for one project right now. In concrete, for chat and inbox messaging. It's very simple to make it run with Django.
Greetings
For logging out user you can use the Session expiration, but for all other staff you want to achieve I don't see any thin really related to Django itself, everything depend on your requirements and is more Browser/javascript related than Django.
As the title implies,
I need to fetch data from certain website which need logins to use.
The login procedure might need cookies, or sessions.
Do I need QtWebkit, or can I get away with just QNetworkAccessManager?
I have no experience at both, and will start learning as I go.
So please save me a bit of time of comparing both ^^
Thank you in advance,
Evan
Edit: Having read some related answers,
I'll add some clarifications:
The website in concern does not have an API. So I will need to scrape web elements for the data myself.
Can I do that with just QNetworkAccessManager?
No, in most cases you don't need a full simulated web browser. In most cases, just performing the same web requests like a web browser would do is enough.
Try to record the web requests in your browser, using a plugin like "HTTP Live Headers" or "Firebug" in Firefox. I think Chrome provides a similar tool out of the box. These tools record the GET and POST requests done by the website when you send a form in the webpage.
Another option is to inspect the HTML code of the login page. Find the <form> tag and its fields. Put them together in a GET / POST request in your application to simulate the same form.
Remember that some pages use randomized "tokens" in their forms, some set the tokens as cookies. In such cases, you need to request the login page itself in your application first (before sending the filled in form). Both QWebView and QNetworkAccessManager have cookie support.
To sum things up, I think QWebView provides a far more elegant way to simulate user interaction with a web page. The manual way is, however, more "lightweight", as you don't need Webkit and your application might be faster (because only the HTML page is loaded, without any linked resources like images, CSS, javascript files).
QWebView as class name states is a view, so it views something (in this case web pages). If you don't need to display loaded page, then you don't need a view. QNetworkAccessManager may do the work, but you need some knowledge about HTTP protocol, and also anything about target site: how does it hande logins, what type of request you have to send to login etc.
I was just wondering if it is possible and if so what the best way to create a web-page that is only accessible from a custom iPhone application? For example, if you tried to access the webpage from the iPhone's built in browser, or any other browser it would display an error page but when accessed from a custom built application it would be fully functional.
One idea that has come up is to change the User-Agent string in the embedded browser inside the application to something custom. I'm not sure if this is viable though.
I hope this makes sense.
Thanks in advance.
-Ben
Any and all request headers can and will be spoofed. Authentication is the only plausible solution.
Changing the User-Agent string is a good method. I haven't tried it personally, but you should be able to alter the NSURLRequest object and change the user-agent before the request is made.
You could also use other custom data in the HTTP request to allow/block visits. You could add a query string to the URL or include some unique POST data.
Note this isn't a real security measure as anyone could fake any part of the HTTP request to gain access. Someone could easily read the HTTP traffic generated from your app and use that to figure out how to access the site with any browser.
I'm trying to write a simple GUI application using Qt framework.
The purpose of this app is to retrieve data from my isp and parse them for presentation.
How do i authenticate my user/password with the webserver and retrieve the html page in question?
Are there any utility libs that make this task trivial?
I figure i need to interact with the server php script and simulate a form input somehow.
Am i on the right track?
You're on the right track, I suggest taking a look at curl.
That should make it alot easier.
edit: Hm, thought it did more than just file-transfer.
Otherwise here's a load more of interesting lib's
The way to authenticate depends completely on the authentication method used by the server. If it's some form to log in you need to retrieve that and send the correct data to the forms action target (usually as POST request). You could do this by constructing your request using QHttpRequestHeader and then simply sending it to the server. If you even know about the form you might even not need to retrieve the login page. If the website uses HTTP authentication you should be able using QAuthenticator.