How to find path for on submit text box - javascript

I'm trying to reference a URL in a local application and am having difficultly finding the correct path to reference.
It uses a value that the website transforms into another value for the page requested.
The main URL is http://exac.broadinstitute.org/
My inputs contain variations of rs113488022 , which the website will turn to a variant
http://exac.broadinstitute.org/variant/7-140453136-A-T
Unfortunately I do not have this variant value to pass directly,and am looking for the path of the on submit action from the front page.

Yikes, that is some horrible HTML code.
But if you inspect the input element you find that the form has a simple action /awesome, and the input’s name is query. As a consequence, you can simply perform a GET on the following URI:
http://exac.broadinstitute.org/awesome?query=rs113488022
Be prepared to process redirects, because the above will give you an HTTP response of 302 FOUND with a redirect location (which is the URI you found).

Related

How can I copy the web address of a javascript generated link?

I would like to be able to link directly to the individual funds on the page at https://cfrrrscholarships.communityforce.com/Funds/Search.aspx
If I copy the link, it just contains the following code:
javascript:__doPostBack('ctl00$PreContent$GrantsSearch1$grdFund$ctl03$lnkFundName','')
Is there a way to enter some variables into the address bar to obtain a unique address for each of these links on the page?
You can't in this case - the javascript pseudo protocol in the link anchor tag's href value is being used to execute a function call (to __doPostBack) in the page you are looking at, and provide the arguments used to submit a form to replace the current page content with the server's response.
In other words the href value is not a url, and an onclick handler on any number of different element tags could have achieved a similar result.
What the server responds with is, hmm, best known to the server and doesn't need to have a url accessible from the web. (It may have one, but that information is not contained in the page linked in the question).

How to get POST contents before form submits using javascript

So, I know that when I submit a form whose method is POST that the server receives the contents of that form and then processes them accordingly, and then returns a page with the desired content. What I am trying to learn is what exact query url is being passed to the server side script when I submit a form on a website that does not belong to me. The reason I want this query string is so that I can make use of the server side script programatically with my own data. There is no public API served by this website, but I would like to formulate my own.
So my question is, is there a way to intercept the POST as a query string URL? Perhaps by using a javascript console in browser?
I know I can look at the source code for the page and find the names/values of the form fields. However, there also happens to be a hidden field on this page whose properties are set by javascript during validation at submission time. How should I go about this?
You can use an extension for intercept the data : Tamper Data on FireFox
https://addons.mozilla.org/fr/firefox/addon/tamper-data/
You can intercept and modify all headers requests

How to send a GET request with a specific query string to my page using Jquery?

This code toggles the color of an element whenever you click on it. But how can I send a GET request with query string ?toggle=True on the first toggle and ?toggle=False on the second one?
Ow, I can see it appearing in Firebug, but not in the url of the page. Any idea why?
Making a request and changing the URI in the address bar are two different things unless you cause the browser to load a completely new page.
If you want to do that, then you should forget about using client side JavaScript and move your logic server side and use a regular link.
In the server side logic, the value of the query string argument would be used to determine the class of the div (which is used to set the style) and the href of the link (i.e. if it has True or False in the query string).
If you want to avoid loading a new page, then you are looking at two separate steps.
The first one you already have (the changing of the style using JS).
The rest gets more complicated…
First you need server side logic so that True/False in the query string will set up the initial state of the page correctly. This will be the same as the logic described for the previous method.
Then you need to update the URI so that it matches the one that would load the page in the state you are altering the current page into. This is done using the History API (pushState and friends). There are more details on the subject on this question.
If you want to notify the server of the change, then you'll need to use jQuery.get, as well as updating the page and changing the URI in the address bar. To be efficient, you should probably add an additional query string argument (so you can tell if it from Ajax from that a normal page load) and have the server return a simple acknowledgement rather than the whole HTML document when it sees that argument.
Just use jQuery's get method to do so or do it yourself in your toggle functions.
A pragmatic yet pretty basic solution may be to use a local variable as a counter.. If the counter is even, send True, if odd, send False.
Increment counter on each click :)

Javascript, jquery, ajax url query string rewrite

I thought this would be easy but I guess I was wrong. I have a url;
http://www.example.com/aa/bb.html?uid=123
using javascript jquery and html, I am able to retrieve data from a json api with the uid in the sample url above. However, I don't want that url displayed like that in the address bar after the data has been parsed. Rather, I need it to display as;
http://www.example.com/aa/item-title
where item-titleis the title of the data referenced by uid=123.
A php mod-rewrite would have been ideal, but this project does not make use of server side scripting.
Thanks in advance
If you change or modify the URL then the browser try to fetch data fro the new URL. You can do something with the part of URL after # mark.
Like :
http://www.example.com/aa/bb.html?uid=123#old_part
to
http://www.example.com/aa/bb.html?uid=123#newpart
I can see only one solution to your problem as you don't want to use mod_rewrite. You can redirect from first page just changing the URL based on the given uid value to the next page you want to display.
First page - read parameter uid and build the redirect URL based on the title(not any other stuff in your first URL page)
Redirect to the built URL
In redirected page do the rest of page specific stuff.

Performing JS methods on a URL submitted by the user?

I haven't found an answer to this, and since I'm pretty new to JS, I don't know if it's even possible.
I have a regular HTML form, where the only field is a user types in a URL (any URL) and clicks submit.
The URL will "be sent" to JS code that stores this URL in some variable, I guess. Basically, I need to be able to call getElementsByTagName() on any URL submitted by the user.
My point is to count up the number of times a URL contains a specified element, which I do know how to do :)
How do I interpret a URL submitted through a form by someone and then take that URL and be able to perform methods (such as getElementsById) on it? I want to return the count of the number of elements to the user.
Any ideas? Can this all be done in JS? Is this possible?
When you say "URL," I assume you are talking about the actual webpage and not the url string. In other words, you want to load the entire DOM into a javascript variable and then parse it with getElementsByTagName(), etc. Javascript cannot load this webpage due to the Same Origin Policy, unless users can only submit pages that are on the same domain as your site. If that was the case, you could use a frame. Otherwise, JS can't do it without Jsonp, which isn't going to work in this case.
However, all is not lost. You can have your JS make an asynchronous request (ajax) to your own server. Your server scripting language /can/ get the entire DOM of the webpage (e.g. PHP can do this with cURL). Then it can send the entire string back to JS as xml that can be parsed. Good luck.
You can't really do that from the client (the web browser) with nothing but Javascript, because security rules will prevent your page from fetching and examining content from a different domain. You'll need to send the URL to a server and have it do the work.

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