I know that if an input element of html form does not have name attribute it will not be sent at all but i saw a webpage that gets user informations like password and the input element of its html form does not have name attribute
so do you have any idea that how does such pages sends user password to the server?
There are ways in which the data could be sent from an HTML client.
If you could provide a link to the website in which you saw it, I could may be look and tell.
They probably used "XMLHttpRequest" asynchronous mode to get and send data to the server.
Take a look at this link: https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest
Related
Good day,
We are currently making use of Mimecast to tag stationary on the outgoing emails. In Mimecast you can sync attributes from Active Directory for use in personalized email signatures, etc.
I am currently trying to configure a mailto link that uses the "Display Name" attribute in the link, to add the senders name to the subject of the email.
However I cannot get to work. Also in the Mimecast HTML editor no var variables can be passed as it only allows basic HTML.
The Mimecast attribute for display name is pulled with the following piece of code...
<mc type="variable" source="from" attribute="displayName">
This needs to replace "FirstName%20LastName" in the code below.
<mc type="clickimage" code="imagebottomleft">
Kind regards,
Renier
I took a look at the specification (RFC2368), and it does not seem that this feature exists.
If I want to send data back to the server from user input I know I need to use the form tag.
But why do I need the form tag, what does a form tag do behind the scenes?
I've only been in web development for less than a year, so please forgive me if my question is beginner question.
Edit: I know a form is used to denote a part of the page that is interactive and data between the from tags will be sent back to the server.
So, is the tag, just a tag, is there another piece of technology that takes the data from the page and returns the data to the server?
Edit 2: From comments and more specific web searches, I found out that the form tag is just that. A tag. It defines something on a page and does not do anything. All is okay now.
The form tag validates and with html 5 it means it doesn't call the server immediately. It can do a quick check before it attempts to post. E.g. does the email box look like an email address.
The advantage of this is it reduces costs as you're not unnecessarily calling the server. When the form thinks it looks good it will send the info to the back end.
Get and post messages are sent either getting information (reading) or it might be posting (writing).
I think that's what you're after.
I am learning html from w3schools. They have used <form action="demo_form.asp"> this form tag with attribute action="demo_form.asp. I know the meaning of form tag as well as action attribute. But I don't know what is the meaning of action="demo_form.asp". When I use this attribute action="demo_form.asp", a file named demo_form.asp start downloading!
Can anybody explain me this thing?
Full code is here.
action attribute define the page to be use to post the data, when you hit submit button it redirect to the page you have mentioned in the action attribute. so that you can access the data submitted through this page.
The action="demo_form.asp" attribute is the file to which your <form> will be submitted.
From HTML spec
action = uri [CT]
This attribute specifies a form processing agent.
It's used to send the request to the page (url) specified in the action attribute when the form is submitted.
As per the example:
Once you enter your favourite color in the input box & click submit.
The form details is sent to the server page (demo_form.jsp) based on form action.
There the form is processed and based on the input, it's redirecting you to different page.
Where you can find the fav color which you have entered is mentioned there.
Input was received as:
favcolor=blue
The value of the action attribute tells the browser the location of the script that will process this form. In the example you have provided, the data submitted by the user in the form will be processed by the file/script called demo_form.asp.
The action element points to a thing that will handle the content of the form you have submitted. This can be as simple as a new page (maybe php), or a .cgi script, and so on. In your case it is attempting to submit to an ASP page. If you are attempting to use the form in your own pages, it is likely your browser can't find 'demo_form.asp'.
Why it is attempting to download it, rather than just tell you the page is missing, I'm afraid I don't know.
Hope this helps.
demo_form.asp should execute and not download. How are you running the file? It looks like your IIS is not enabled.
If you are trying this locally, to run ASP you'll have to configure IIS in your system (it is not enabled by default) and then use
http://localhost
.... to run your file. Otherwise ASP will not execute. See http://msdn.microsoft.com/en-us/library/ms181052(v=vs.80).aspx for enabling IIS. Once IIS is enabled,
http://localhost
will point to c:\inetpub\wwwroot folder by default. Create a folder in wwroot (say test) and place your files inside that folder. If your file is abc.asp then to run it you'll have to type
http://localhost/test/abc.asp
.
Hope this helps.
I need to know how to fill an web form using Delphi XE3? I have a web form with user name and password, so how to fill it programmatically?
The page is http://batelco.com/portal see only two inputs user name and pass so how to fill and pass them ?
Using Internet Direct (Indy) HTTP client class, you can submit form values to the server using HTTP POST.
The Indy HTTP client will also receive and store cookies which the server sends with its response, if an instance of the TIdCookieManager class has been assigned to the IdHTTP client component.
HTTP cookies are required by many secure web applications when the client makes further HTTP requests to other secured URL on the server. The Indy HTTP client then will send the cookies with the request (if a TIdCookieManager has been assigned to the IdHTTP client component).
So you could send a login POST request on the login URL, providing needed authentication information, and then send a GET request to the download statistics URL to retrieve its HTML.
Regarding your specific login form, which uses ASP, here is a question about programmatically sending POST requests: HowTo deal with cryptic hidden values for ASP Net (__VIEWSTATE)
This article shows how to get and set properties of named elements.
You should get and set value properties. What ID's would form elements have depends upon your page.
Check if Element with ID has a value
This article while asked "how to read" also describes both how to get values and how to set them. Afterall if you can do A := B (read value), then you probably can also do B := A (set value).
read content in webbrowser input field
Now, that the page URL is given in the question we can click on the right top corner login-form elements in WWW browser with right button, and choose "Inspect element" to see its sources. Or, if browser is not modern and does not have Inspect command on menu, we can use another commend, like View page source and find form in the sources of the whole page. For example one of those elements is
<input name="txtUsername" type="text" maxlength="15"
id="txtUsername" tabindex="1" class="inpu-field" onfocus="txtfocus();"
onblur="txtblur();" style="color: gray; background-image: none;">
Thus we know know the ID of 1st element of form, whose "value" attribute we need to get(read) or set(write).
Links above show how to do it, given the known ID.
BTW, you given your page wrong, the real page is https://www.e-services.com.bh/Eservices/login_batelco.aspx
What about your original page, it just does not work with MSIE6 that is TWebBrowser in default mode - for compatibility with all the written applications using Microsoft ActiveX component. See http://imgur.com/ad4wbOI
If can use Google Chrome instead of TWebBrowser.
Or you can reach the ActiveX interface as one of TWebBrowser properties, and acquire new interface and turn off MSIE6-compatibility http://msdn.microsoft.com/en-us/library/aa752510.aspx
However, "how to make this page render in twebbrowser" is another, new question, not the question you asked here.
Actually, the only reason why i do not vote for closing this question as duplicate, is because none of articles above have "set" or "write" or "fill" in their title, so finding them was a bit harder than trivial.
But if the page is not mutating on load and does not have some one-time protection like CAPTCHA or unique form hash-codes, then you can post all the values with single HTTP request without even loading the form.
How can i code a HTML (using CSS) file to send an email to me(i.e. to given email-id) by the visitor of that website?
Without using a server-side language, the best you can really do is a mailto link. That will open the user's default email editor with the "To" field populated with the value of your mailto link. You can create one of those like so:
Email Me!
It is possible to provide extra information in a mailto link, to populate more fields. For example, if you want to provide a subject:
Email Me!
You can also provide a value for the body, cc and bcc but I have no idea how well those default values are supported by various email clients.
Also note that this has absolutely nothing whatsoever to do with CSS, which is used for styling documents. I've therefore removed the CSS tag from your question.
You cannot. You can use a tag:
Email Me
And this will open a mail client in the client side. The client must have it configured for being able to send a email.
If you want to create a form that, when the user presses a button "send" sends you a message, you must use a dynamic language such as PHP.