When I try to load url everything works fine. I also tried to load normal HTML and that worked fine too.
But this html I got from API is so weird and without tags. Is it possible to somehow present this in webView?
This is how my HTML looks like:
Code to load it :
var html: String
html = cards[Int(slider.value)-1].content
print(html)
webView.loadHTMLString(html, baseURL: nil)
The API is returning the data URL-encoded. So you have two options:
Preferred: Try fetching the data non URL-encoded. Maybe by passing the accept header "text/html", assuming the API might default to "text/plain". Check the API documentation and your request headers.
As a fallback: Use NSString.removingPercentEncoding.
Related
I am trying to request a website's html code and use it in an app in Xcode (Swift 3.0) and the pod Alamofire. In the html code online, the data contents that I want to scrape are in a div class that returns data from an Events calendar, in the form of a javascript web plugin. Since the website is not static, when I request the html and print the resulting response as a string, the data I want is not contained in the string. A message appears that says:
<noscript>Your browser must support JavaScript to view this content.
Please enable JavaScript in your browser settings then try again.
Events calendar powered by Trumba
</noscript>
My code using Alamofire looks like:
func downloadCalendar(){
Alamofire.request(urlString).responseString { (AlamofireResponse) in
print(AlamofireResponse.result.value!)
}
}
The urlString is a variable for the actual webpage's url.
Is there a way to get all of the html that appears in the html online into Xcode using Alamofire? If it's not possible with Alamofire is there another way to do this using Swift?
I've tried to accomplish a similar thing, unfortunately to no avail...
It seams AlamoFire grabs the first response it gets....
There is a workaround - use UIWebView:
static let webView = UIWebView()
self.webView.loadRequest(URLRequest.init(url: URL.init(string:"http://example.com")!)
DispatchQueue.main.asyncAfter(deadline: .now()+10.0) {[unowned self] in
if let html = self.webView.stringByEvaluatingJavaScript(from: "document.documentElement.outerHTML")
{print(html)}
}
Where 10.0 is the approx number of seconds required for javascript to finish loading the webpage data.
However since: it's not thread safe, you must use a singleton webView,
import UIKit and can't do it in the background - it's far from the perfect solution...
It might be easier to setup a proxy webserver in between to do the parsing for you.
Cheers!
I tried to view the Json result from HTTP Response in browser through C-sharp code but crushing my head didn't get it.So, whether we can have an option to view all HTTP Response results in the browser?
If you want see JSON result on your browser,
Use : https://chrome.google.com/webstore/detail/jsonview/chklaanhfefbnpoihckbnefhakgolnmc?hl=en (JSONView for chrome)
OR
https://addons.mozilla.org/en-us/firefox/addon/jsonview/ (JSONView for Firefox)
and simply use url parameters to see JSON response in your application : http://localhost/westwindwebtoolkitweb/RestService.ashx?Method=ReturnObject&format=json&Name1=Rick&Name2=John&date=12/30/2010
Hi I'm new to restfulyii
I'm having a problem with the json response a tag is being prepended
Refer to the code below
(just assume that there are '<>' for the link tag)
<link rel="stylesheet" type="text/css" href="/assets/e5ba1689/srbac.css" />{"success":true,"message":"Record(s) Found","data":{"totalCount":1,"share":[{"id":"0","elementid":"1","type":"video","suid":"1","duid":"5","permissions":"superuser"}]}}
this coming from api/ under GET method and same with other rest verbs
I can't parse my JSON data because of the prepended line.
Please help..
reference:
localhost/api/ - method: GET/POST/PUT/DELETE
Everything is working fine with restful yii except that json response format...
Thanks in advance!
Ohmel Paguirigan
The problem seams to be that YII is not recognizing that your request is an actual Ajax request.
Search in srbac/components/Helper.php for:
if (!Yii::app()->request->isAjaxRequest){
Yii::app()->clientScript->registerCssFile($cssFile);
}
You will notice that SRBAC is checking if your request is an actual Ajax request.
Yoshi on the Yii Forms says that:
yii checks if there is a X-Requested-With HTTP header set (which
should result in an $_SERVER['HTTP_X_REQUESTED_WITH'] server variable)
and whether it contains the string 'XMLHttpRequest'. But this is a
custom header set by most javascript libraries (and so does jQuery).
There are e.g. some proxies which drop these custom headers (mainly
for security reasons) and therefore your application can't recognize
whether it's an ajax request or not. It's not 100% reliable.
Therefore, you must make sure that your javascript library is injecting this Header.
To do this in Javascript, in your app.run
add the following:
$http.defaults.headers.common['X-Requested-With'] = 'XMLHttpRequest';
Then, all of y our http requests in angular will send the header yii needs to discern that an AjaxRequest is being sent!
Hope this helps!
I have a problem receiving and opening a picture via AJAX.
If I call the following page:
http://127.0.0.1:8889/ex?sql=SELECT+Image+FROM+Persons+WHERE+Number+Like+%27%2501%27
a picture is displayed from a blob field in IE8.
Now I would like to open this into a div after someone pressed a key (using AJAX)?
Trying to use xhr.responseText does not work (I get an error. Using it on a text response works). So it seems that my problem is to grab the result from the ajax request.
How can I do this?
Some code and the error message:
var picReturn = xhr.responseText;
=> Could not continue due to the following error: c00ce514
You have three options:
Place the resultant data in an iframe. Not very practical.
Take the result and place it in am image source as a data:uri. Not supported in older browsers and limited to 32/64Kb depending on the browser.
Skip the AJAX and write a web service and use that as your url. This is the best option.
You don't say what language you're using server-side but you essentially want to open a web response, set the header to "image/jpeg" and return your stream.
i wonder if there is some way to do something like that:
If im on a specific site i want that some of javascript files to be loaded directly from my computer (f.e. file:///c:/test.js), not from the server.
For that i was thinking if there is a possibility to make an extension which could change HTML code in a response which browser gets right before displaying it. So whole process should look like that:
request is made
browser gets response from server
#response is changed# - this is the part when extension comes in
browser parse changed response and display page with that new response.
It doesnt even have to be a Chrome extension anyway. It should just do the job described above. It can block original file and serve another one (DNS/proxy?) or filter whole HTTP traffic in my computer and replace specific code to another one of matched response.
You can use the WebRequest API to achieve that. For example, you can add a onBeforeRequest listener and redirect some requests:
chrome.webRequest.onBeforeRequest.addListener(function(details)
{
var responseData = "<div>Some text</div>"
return {redirectUrl: "data:text/html," + encodeURIComponent(responseData)};
}, {urls: ["https://www.google.com/"]}, ["blocking"]);
This will display a <div> element with the text "some text" instead of the Google homepage. Note that you can only redirect to URLs that the web server itself is allowed to redirect to. This means that redirecting to file:/// URLs is not possible, and you can only redirect to files inside your extension if these are web accessible. data: and http: URLs work fine however.
In Windows you can use the Proxomitron (proxomitron.info) which is a local proxy that can intercept any page or file being loading into your browser and change it using regular expressions (no DOM parsing) however you want, before it is rendered by the browser.