I woundering it is possible to take content from other sites using play framework.
For example in php it is possible by using curl .
Example I have rute :
GET /test controller.Aplicatin.getContent
and when I put in browser localhost:9000/test then it show content from example http://google.pl
And it is possible to send post data to other sites nad get content ?
For example by typing localhost:9000/test I wana send post username, password to gmail and return content from login page.
You can do whatever you want in your controller Actions. Use the WS lib to make whatever type of request you want and then return that in html or whatever.
Example:
def getContent = Action.async { implicit req =>
WS.url("someurl.com").post("some body here").map(response => Ok(response.body))
}
Related
Here is what I'm trying to accomplish (IE 9+, Chrome, FF, Safari) without the use of JQuery:
Make an http POST call to my API endpoint with some data
Server dynamically generates a PDF and returns the PDF as a binary attachment
Browser does default download behavior and downloads the PDF without refreshing the page
Basically I want to get the behavior similar to <a href="test.pdf"> but for a dynamically generated PDF after making a POST call instead of a GET call.
I've tried lots of different things, but they either didn't work cross browser (such as using $window.open() with a blob URL), were blocked by popup blockers (any $window call outside of the click scope), or didn't cause the PDF to be automatically downloaded (any $http POST solution).
I finally found one solution that seems to work which creates a form using javascript and submits it.
var form = document.createElement('form');
form.setAttribute('method', 'post');
form.setAttribute('action', myurl);
var params = {foo: 'bar'};
for(var key in params) {
if(params.hasOwnProperty(key)) {
var hiddenField = document.createElement('input');
hiddenField.setAttribute('type', 'hidden');
hiddenField.setAttribute('name', key);
hiddenField.setAttribute('value', params[key]);
form.appendChild(hiddenField);
}
}
document.body.appendChild(form);
form.submit();
This successfully accomplishes the 3 steps above, but now I've run into a new problem. There is no way to determine when the PDF file has been successfully downloaded. This is preventing me from removing the form and from displaying a friendly 'Please wait...' message to the user. There is also the additional problem that submitting the form cancels any outstanding ajax requests as well which isn't optimal.
I have full control over both the server and the client, so what's the best way to fix this? I don't want to have to save the PDF on the server so passing back a url and doing a second GET request from the client won't work in this case. Thanks!
You can make an server response behave as a download by applying some HTTP headers:
Content-Type: application/octet-stream
Content-Disposition: attachment; filename="SOME_NAME.pdf"
Content-Transfer-Encoding: binary
If you're initiating the download through JS only (instead of having the user click a download link), then check out this question for some caveats.
Update: Syntax for POST
Better Update: Form solution with iframe target
You can detect that your server-side script has finished (and subsequently, that the download is ready to begin) by having the form target an iframe. I believe this should also fix the issue of cancelling outstanding Ajax calls, but I'm not certain. Here is the code to do it (just stick this into your code example after the for loop and before document.body.appendChild(form);):
var frame = document.createElement('iframe');
frame.setAttribute('id', 'pdfFrame');
frame.onload = function(){
document.body.removeChild(form);
document.body.removeChild(frame);
alert('Download ready!');
}
document.body.appendChild(frame);
form.setAttribute('target', 'pdfFrame');
You can replace my alert with your code to remove the 'Please wait...'.
Can i change the URL format generated by a Yii form submisson?
eg. my url using the get method will look like:
domain/search/new?Search[field_1]=1&Search[field_2]=2&Search[field_3]=3
can i make it look like:
domain/search/new/1/2/3 or
domain/search/new/field_1:1/field_2:2/field_3:3 or
domain/search/new/field_1/1/field_2/2/field_3/3
Not if you let the browser submit the form normally.
On the other hand, if you use jQuery to prevent the form submission and make a custom AJAX request (or even point the browser to another URL) instead then you can do anything you like.
How passing of url parameters works in facebook, twitter , youtube or other similar sites .
eg:
facebook http://www.facebook.com/stackoverflowpage
twitter: http://twitter.com/StackOverflow
you tube: http://www.youtube.com/user/BBCWorldwide
where bold ones are parameters( i believe those are parameters)
What i have seen in most websites is like this,
http://www.website.com/index.php?id=stackoverflow
then how those above websties is passing parameters in different method,how they are doing this?. Or whether when a new user is joined in those website a new file is created in their server.
eg:
http://www.facebook.com/stackoverflowpage
http://www.facebook.com/stackoverflowpage.php(or .aspx whatever methods)
This is usually done by URL rewriting on ther server side. For example using .htaccess. A typical situation is: when a request of the form http://server.com/x/y comes in, it is rewritten as http://server.com/index.php?param1=x¶m2=y and then passed on to the request processor (say, PHP).
Ref: http://en.wikipedia.org/wiki/Rewrite_engine
Starting with Zend and I´d like to know what is the simplest way of sending POST data to another page, not by forms, but by some link in my view instead. Thanks :)
You can't send POST data through a link. At least not through a normal link. Link can only carry GET data.
If you need to send POST over a link it's most certainly a design flaw.
If you're 100% sure, that you need it, you can do that using jQuery and onclick event. It`s not possible to do it without javascript. Other option would be to send it using form with hidden fields with single submit button visible - that would even work without javascript.
Normal hyperlinks in HTML are sent with GET requests and are not supposed to change the state of the resource being accessed. This is known as being idempotent. You can repeat the request over and over, and the result of each succeeding request to the same URL is the same as the first one.
POST requests don't have this restriction and are intended for when the user needs to change something (such as creating a new resource.)
It's not possible to send a POST request via a normal HTML link. And even if you find a way, it breaks an almost universal expectation that web users have. What are you trying to accomplish? Maybe there's a better way.
But to answer your question, you could use something like jQuery to capture the "click" event and make it do a POST request:
$('.my-link').click(function() {
var url = $(this).attr('href');
var data = {};
$.post(url, data, function() {
window.alert('success!');
});
return false;
});
If your URL has any query parameters, i.e. "?foo=bar&baz=bum", then you'd probably need to strip them off of the URL and pass them as a second parameter to the $.post() function. This is left as an exercise for the reader. ;-)
I have this facebook application which adds a custom tab to fan pages. You access the tab by an URL like:
http://www.facebook.com/pages/PAGE-NAME-HERE/PAGE-ID?v=APP-ID
I want to be able to add some extra get parameters to that URL, but it seems they don't get passed correctly because facebook is filtering them. Is there a way to pass those parameters? Even not via GET but some other kind of technique.
If you want to pass multiple querystring params though the app_data param, you can urlencode it.
All querystring params that need to propagate through a Facebook tab should be url-encoded in the app_data var.
In other words, the "&" and the "=" need to be url-encoded (especially if passing more than one param).
Examples
GOOD TAB URL (this passes all 3 params):
https://www.facebook.com/pages/yourpagename/56789?sk=app_12345&app_data=var1%3D123456789%26anothervar%3Drawr%26athird%3Dmeow
In the app_data from this signed request, I got this value: var1=123456789&anothervar=rawr&athird=meow
BAD TAB URL (this passes only the first param through the signed_request):
https://www.facebook.com/pages/yourpagename/12345?sk=app_56789&app_data=var1=123456789&anothervar=rawr&athird=meow
In the app_data from this signed request, I ONLY got this value: var1=123456789 (Facebook dropped the rest)
You can even give your media team instructions like this =)
Media team,
Here is an online utility to urlencode the querysting data you want to
embed in the app_data param: http://meyerweb.com/eric/tools/dencoder/
Base Url: https://www.facebook.com/pages/yourpagename/12345?sk=app_56789&app_data=
Steps:
Go to http://meyerweb.com/eric/tools/dencoder/
Type var1=123456789&anothervar=rawr&athird=meow in the box
Hit the Encode button
You’ll get var1%3D123456789%26anothervar%3Drawr%26athird%3Dmeow which becomes your app_data param. Append that to the baseUrl noted above like this:
https://www.facebook.com/pages/yourpagename/12345?sk=app_56789&app_data=var1%3D123456789%26anothervar%3Drawr%26athird%3Dmeow (this is the URL with the tracking params for the [banner ad] [online media] [etc])
p.s. Querystring params in non-tab pages are handled fine (https://apps.facebook.com/yourappname/Canvas.aspx?var1=123456789&anothervar=rawr&athird=meow does not strip out qs params like what happens in the Tab, for example).
You must pass the app_data parameter in the URL:
http://facebook.com/pages/:page_id/:page_name?sk=app_:app_id&app_data=my_data
You will then access it through the signed_request param. For instance with Ruby and RestGraph:
user = RestGraph.new.parse_signed_request(params[:signed_request)
data = user['app_data'] # => "my_data"
Appending app_data worked for me.
http://www.facebook.com/pages/MyPage/11111111111111?sk=app_22222222229&app_data=foo_bar
Then retrieve signed request using PHP SDK (in my case). app_data is then available in the assoc. array returned.
I was wondering the same, in my case I had needed to pass a parameter "from" to identify if user was using mobile form or web form to login. My app use Spring Security. The way I was able to do that was creating my own SocialAuthenticationFilter:
1) Add a (hidden in my case) parameter to your login form ("from" in this example).
2) Get the right SocialAuthenticationFilter.java source (in accordance with your Spring version).
3) Create your MySocialAuthenticationFilter using it.
4) In method:
getRequestedProviderId(HttpServletRequest request) is where you can
grab your parameter:
private String getRequestedProviderId(HttpServletRequest request) {
String f = request.getParameter("from");
if(f!=null) {
final String dbValue = request.getParameter("from");
request.getSession().setAttribute("from", dbValue);
}
...
And thats all. In this way after a successful authentication you will be able to recover from session your parameter.
Be aware this method is called several times during OAuth exchanging, and when it is called from the authentication provider (Facebook for example) the parameter will be null. That is the reason to check the value before save in session in order to avoid delete your right value.
I answer myself by saying this is not possible.