Currently i have a wepage where I am sending a ajax request from javascript and in respose for that server is sending a video file which will be by default saved browser download location. I want the user to select download path each and every time for the file download(which can be achieved by changing browser settings which is not suited for me). So i want to include a activex object which can send ajax request and get its response. First I want to know whether is it possible, if yes is there any prototype/examples, or please let me know how it can be achieved.
It is possible; FireBreath has a mechanism called BrowserStreams that would probably work for what you're describing, but honestly I'd suggest against it. See if you can do what you need using an extension; Chrome is dropping support for NPAPI next year and even if they weren't I think it's a really bad idea to use a plugin for something like this.
Up to you, of course. There are examples for making HTTP GET and POST requests in the FBTestPlugin example in FireBreath.
Related
I have this site:
https://acad.unoesc.edu.br/academico/login.jsp
And I want to put info in the fields values and submit then, to get the next page and navigate in that site. Thats because I want to create an android app or something like that. Im using lua in first case, with luasocket(http).
I know that the input has its names, but I dont know how to set then and send then to the server. If someone can help me with this.
Thank you.
You can use POST method with luasocket. See the official documentation and a detailed example in this SO answer.
Since you seem to be doing authentication, you'll probably need to save the cookie value returned to you as part of the login response and then pass that cookie back to the server (otherwise your subsequent requests will fail as the server will reject those requests as non-authenticated).
Since you are sending this over https, you'll need to use LuaSec, which provides ssl.https module as replacement for the http module that luasocket provides. You may check my blog post for some example of how this can be done.
I am trying to implement basic progress bar for file uploads to work across multiple browsers without additional plugins like Flash or Silverlight. There are multiple ways to approach this problem on a client-side, however I can't find anything to work on a server.
Anywhere on MVC controller (before/on authorization and before/on executing action) file is already uploaded to server as HttpPostedFileBase. If I use basic HTTP handler for form submission, I have access to Context.Request.InputStream as well as to Context.Request.Files, but as soon I access the properties the stream/files would load silently.
I did extensive research, but could not find anything what allows me to Cache or store file upload process in Session. That would at least allowed me to use periodic AJAX requests from a client to monitor the progress.
What am I missing?
You should try a Javascript alternative, instead of handling it server side. The controller should only come in action when the request is done sending.
Try this JavaScript/jQuery alternative to Flash/SL
http://blueimp.github.io/jQuery-File-Upload/
How do I play a track from a SoundCloud URL, which, for example, I got from the xml response from a query
<stream-url>https://api.soundcloud.com/tracks/31164607/stream</stream-url>
I should have thought that it would have been as easy as:
https://api.soundcloud.com/tracks/31164607/stream&client_id=my_client_id
yet I get
<error>401 - Unauthorized</error>
All I want to do is consume it in a Silverlight MediaElement, so all I need is set some url to the MediaElement's Source property.
I've checked an application that I wrote about 2 years ago, and THEN, accessing the stream url was as easy as this for a public track:
http://api.soundcloud.com/tracks/18163056/stream&consumer_key=MY_CONSUMER_KEY
however this no longer seems to work.
For example, all I had to do then in C# was:
MediaElement me = new MediaElement();
me.Source= new Url("http://api.soundcloud.com/tracks/18163056/stream&consumer_key=MY_CONSUMER_KEY");
me.Play();
Any hints would be appreciated.
I had a reply on a Microsoft forum that seems to imply that SoundCloud might not be possible to stream to Windows 8 Metro devices without consuming the whole stream before playback starts - which is quite worrying and would seem to imply that to make authentication possible, it would have to be done entirely in the url querystring insterad of using the header:
(The following reply is the answer to the following question: 'I am able to access an audio stream by http using the MediaElement, however I need to access it via https in which I need to add the oAuth info to the header of the initial request.
How is this done when using a MediaElement, and if it cannot be done, what is the workaround for consuming an audio feed in Metro 8 that requires header authentication to stream?')
"Direct access to the underlying network stream is not currently permitted by the MediaElement. Because of this there is currently no way to modify the header of the HTTP request to include any additional authentication information. That said, you do have control over the URL. You could theoretically setup an HTTP proxy service that translated the HTTP GET request parameters into the necessary oAuth credentials. Keep in mind that this is just a theoretical workaround. You may find different behavior in practice. Another theoretical workaround would be to handle the oAuth yourself via a raw stream socket and pass the retuned media data to the MediaElement via "Set Source" and a "Random Access Stream". Please keep in mind that this method has major limitations. in order to use a "Random Access Stream" with the ME you need to make sure all of the data is available before passing it to the ME."
The proxy service is not scalable for an application that is merely distributed for free as every stream would need to come via the proxy. And the raw stream socket, although getting around this, would mean that playback could not start until the whole file had downloaded - and this goes against all current UX (User Experience) guidelines.
So once again, if anyone has any tips, or info about how the whole authentication thing can be achieved in a querystring instead of using headers, I'd appreciate it!
I'm a little confused about whether you're referring to a public or a private track? If it's a public track, then you shouldn't need to send any authentication information, just your client id.
When I request https://api.soundcloud.com/tracks/31164607/stream?client_id=YOUR_CLIENT_ID then I get a 302 redirect to the proper mp3 stream.
Remember, adding parameters to a URL must start with a ? not &. This could (more than likely) be the reason why you are getting a 401 (SC is not picking up the client_id).
After authentication the link like this
http://api.soundcloud.com/tracks/103229681/stream?consumer_key=d61f17a08f86bfb1dea28539908bc9bf
is working fine. I am using Action Script.
I'm following up on Tom's reply because he calls attention to url character specificity. My HTTP requests randomly started failing today, and I was prefacing my client_Id with a ?. As soon as I changed that single ? to &, it started working. So in my case, SC wasn't picking up my client_Id because I used the wrong character. I think depending on where in the request we're talking about specifically, it's worth noting that differences between ? and & do make a difference.
So I'm writing a post on my wall and type a URL into the main body of the post. As soon as I finish the URL, Facebook creates a little section underneath which has the title, description, and an image from the url I typed.
Without getting too indepth, how is this done and what is the best way of make something similar myself?
jQuery (or some other framework that lets you do Ajax easily) to communicate between browser client and webserver
PHP/ASP.NET/Python (or some other scripting framework on the backend) to fetch the url
Facebook also has a meta data specification you might be interested in, to let developers further define what gets shown in a Facebook page.
I believe Facebook is written in PHP. And PHP does this easily.
FOpen can be used to access files on other sites. There are other functions but this will get you started. Then it's a matter of parsing the html you get from the url to get what you want.
http://php.net/manual/en/function.fopen.php
You have a couple choices. You can fetch it using Ajax from the client; or you can fetch it from your server.
If doing it from your server in asp.net then you need to use HttpWebRequest.
FB does an asynchronous JavaScript call to fetch that data without reloading the window you're on. Lookup ajax and libraries like jquery do this: http://api.jquery.com/category/ajax/
I am facing this problem while debugging a website.
Plugin used: tamper data for fire fox;
Possibilities: its a ajax request.
as you see in the image the tamper dialog dose not show anything for this request. for other request it shows the general options.
any known issue with this.
And I also want to know if any other better tool available for analyzing websites(live or remote, not on localhost)
Tamperdata is the buggiest thing ever made, even the UI takes 50 clicks to do anything. Look for another tool. I personally use HackBar to send simple POST/GET requests (there's a version that can modify cookies per request too I think), and Wireshark or livehttpheaders (although livehttpheaders is also buggy) when I need to analyze traffic.