Greatest Problem On Earth !

[d.shankar]

 

 

I need to extract the textbox names and form names under the form tag of any html source file of  a site.

 

Consider the code

 

<form action="new.asp" method="post">
<input type="text" name="txt1">
</form>

 

In this code , i have to extract new.asp and txt1.

 

Please help.

[markjoe]

If this is the Greatest problem on Earth, there's a lot your leaving out. (hehe)

I am new to regular expressions, but I believe I'm on the right track here.

/action="(\w+.*\w+)"/ should match new.asp and similar.

/name="(\w+)"/ should match any name value.

You may want to add to the second one if you only want to find names of input elements.

[d.shankar]

Mark ! I once again say this is the most toughest part in the world  .

 

say if you have two or three forms in a single page ?

 

for eg; i have this source

 

<form action="form1.asp" method="get">

<input type="text" name="val1">

</form>

 

<form action="form2.asp" method="post">

<input type="text" name="val2">

</form>

 

i have to capture these resullts to an array ..

i.e.

array(0)=form1.asp & val1

array(1)=form2.asp & val2

 

Hope you understand my problem.

 

[MadTechie]

try this

 

<?php
$data = '<form action="form1.asp" method="get">
<input type="text" name="val1">
</form>

<form action="form2.asp" method="post">
<input type="text" name="val2">
</form>
';


preg_match_all('/(?<=\<form )action="(\w+\.\w+)".*?name="(\w+)"/si', $data, $result, PREG_PATTERN_ORDER);
$forms = $result[1];
$values = $result[2];

echo "<pre>";
print_r($forms);
print_r($values);

echo "or<br />";
$newarray = array();
foreach($forms as $K => $V)
{
$newarray[] = "$V & {$values[$K]}";
}
print_r($newarray);
?>

[d.shankar]

Hi MT thanks for reply.

you did a great job.

 

but 

 

actually i have captured the source of website in a variable $data in which it was previously holding the <form> thing in the previous post.

 

I am not getting the results into the variable for this code

 

<?php
$url="www.google.com";

$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
curl_setopt($ch,CURLOPT_FAILONERROR,true);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
$data = curl_exec($ch); //here $data variable contains the source of google.com

preg_match_all('/(?<=\<form )action="(\w+\.\w+)".*?name="(\w+)"/si', $data, $result, PREG_PATTERN_ORDER);
$forms = $result[1];
$values = $result[2];

echo "<pre>";
print_r($forms);
print_r($values);

echo "or<br />";
$newarray = array();
foreach($forms as $K => $V)
{



$newarray[] = "$V & {$values[$K]}";
}
print_r($newarray);
?>

 

 

any idea buddy ?

 

[MadTechie]

yep..

 

not sure what you want this for but..

 

<?php
$url="www.google.com";

$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
curl_setopt($ch,CURLOPT_FAILONERROR,true);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
$data = curl_exec($ch); //here $data variable contains the source of google.com

preg_match_all('/(?<=\<form )action="([\S]+)".*?name=(\w+)/s', $data, $result, PREG_PATTERN_ORDER);
$forms = $result[1];
$values = $result[2];

echo "<pre>";
print_r($forms);
print_r($values);

echo "or<br />";
$newarray = array();
foreach($forms as $K => $V)
{



$newarray[] = "$V & {$values[$K]}";
}
print_r($newarray);
?>

[d.shankar]

MT.. Actually i am working on a spidering/crawling project and i am 0 in regex.

thats why i need these accurate details..

 

back to the code..

 

the code works only for google.com buddy.. why is it so ?

 

does the regex needs to be changed or it is perfect?

 

[MadTechie]

the only way i can think if you doing this something like this

 

<?php
$url="www.google.com";

$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
curl_setopt($ch,CURLOPT_FAILONERROR,true);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
$data = curl_exec($ch); //here $data variable contains the source of google.com

preg_match_all('/.*action\s?=(?:\'|"|\s)?([^\'"\s\>]*)(?:\'|"|\s)?.*?name=(?:\'|"|\s)?([^\'"\s\>]*)(?:\'|"|\s)?/s', $data, $result, PREG_PATTERN_ORDER);

$forms = $result[1];
$values = $result[2];

echo "<pre>";
print_r($forms);
print_r($values);

echo "or<br />";
$newarray = array();
foreach($forms as $K => $V)
{
$newarray[] = "$V & {$values[$K]}";
}
print_r($newarray);
?>

 

 

have a go see if it works

[d.shankar]

Thanks MT for spending your precious time.

But each and every time i post for asking help i really feel guilty.

 

i am really sorry buddy.

 

 

your code works perfectly well but i come to back to the main requirement.

the code is able to fetch the values for only a single form.

 

FYI: this page www.dnschart.com/name.php contains two forms. your superb code fetched one but ignored the other.

 

your code fetched

the form "whois/results.php" and variables "query"

 

it left "recordres2.php" and variables "domain"

 

I changed the for loop but it didnt help me . Any suggestions MT ?

[d.shankar]

Hi .. I have switched to DOM with the same problem its working but i need small alteration

 

I already mentioned that if there are two or more forms then it will be a trouble , actually i need it in this way.

 

form1

var1a

var1b

form2

var2b

form3

var3a

var3b

var3c

 

Each variables should converge under their parent form.

I have coded this in DOM , actually i am nearing to the conclusion but i need help.

 

Here is the code..

 

<?php

$target_url = "www.dnschart.com";

$ch = curl_init();
curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
curl_setopt($ch, CURLOPT_URL,$target_url);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_AUTOREFERER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$html= curl_exec($ch);

$dom = new DOMDocument();
@$dom->loadHTML($html);
$xpath = new DOMXPath($dom);

$hrefs1=$dom->getElementsByTagName("form");


for ($i = 0; $i < $hrefs1->length; $i++)
{
$href = $hrefs1->item($i);
$url = $href->getAttribute('action');
echo $url;
echo "<br>";
flush();
$hrefs2=$dom->getElementsByTagName("input");
for ($j = 0;$j < $hrefs2->length; $j++)
{
$hrefx = $hrefs2->item($j);
$urlx = $hrefx->getAttribute('text');
	if(strtolower($urlx)=='text')
	{
	$urlx = $hrefx->getAttribute('name');
	echo $urlx;
	flush();
	}
}	

}

?>

[Azu]

 

 

I need to extract the textbox names and form names under the form tag of any html source file of  a site.

 

Consider the code

 

<form action="new.asp" method="post">
<input type="text" name="txt1">
</form>

 

In this code , i have to extract new.asp and txt1.

 

Please help.

Wow... THIS is the greatest problem on Earth!? AMAZING!!!

[d.shankar]

Could someone help me.

[rea|and]

Try something like this... I've tried this code only against the last page you've posted. Currently the regexps work only with double/single quotes (so not something like name=namefield).

 

<pre><?php 
$text='your html code';
$form=array();
preg_replace_callback('/<form[^>]+action=("|\')(.+?)(\\1).+?<\/form>/is','cb_form',$text);

function cb_form($mth){
global $form;
preg_match_all('/<input(?=[^>]+type="text")[^>]+name=("|\')(.+?)(\\1)/is',$mth[0],$names);
// for more than one type attribute 
// '/<input(?=[^>]+type="(?:text|hidden)")[^>]+name=("|\')(.+?)(\\1)/is'
$form[$mth[2]]=$names[2];
}

print_r($form);
?></pre>

[d.shankar]

Currently the regexps work only with double/single quotes (so not something like name=namefield).

 

 

What does that mean ?

 

preg_match_all('/<input(?=[^>]+type="text")[^>]+name=("|\')(.+?)(\\1)/is',$mth[0],$names);

 

this regex works only for type="text" , if i need for both "password" and "text" where i should i add ?

[rea|and]

Currently the regexps work only with double/single quotes (so not something like name=namefield).

 

 

What does that mean ?

 

preg_match_all('/<input(?=[^>]+type="text")[^>]+name=("|\')(.+?)(\\1)/is',$mth[0],$names);

 

this regex works only for type="text" , if i need for both "password" and "text" where i should i add ?

 

It means that if some forms don't use quotes, like google, my code doesn't match the name fields. I could add if you need it, but for now let's check if it works.

 

For the password problem I wrote a comment just below the preg_match_all line to explain how to add more than one attribute.

 

[d.shankar]

yes realand it works i changed the regex as you told to do in the comment.

 

so how can you make it to work with google.com ... ? also i have this site http://www.vizual.co.in/enquiry_form.html

 

where the input boxes are available but their source is in this way

<INPUT name=name22 id=name22 value="" class="formfield">

 

there is no type="text" attribute . so can you change the regex ?

 

thanks for the advanced help.

[MadTechie]

heres one for extraction, i broke it down to make it a little easier

 

<?php
$data ="";//the html page

//get input
preg_match_all('/<input ([^>]*)>/si', $data, $regs, PREG_PATTERN_ORDER);
$inputs = $regs[1];
foreach($inputs as $input)
{
$key = "type";
if (preg_match('/type\s?=\s?(?:\'|")?(\w+)(?:\'|")?/si', $input, $regs))
{
	$type = $regs[1];
}else{
	$type = "";
}
echo "$key=$type|";

//----other key
$key = "name";
if (preg_match('/type\s?=\s?(?:\'|")?(\w+)(?:\'|")?/si', $input, $regs))
{
	$type = $regs[1];
}else{
	$type = "";
}
echo "$key=$type<br />";

}
?>

 

problem is my client was just on the phone so i have to do some paid for work.. will look at this later to night

[d.shankar]

Thank you MT but form names are not being fetched .. there should be a mutual link between the forms and input variable.

 

Anyway thanks i am still waiting 

[rea|and]

yes realand it works i changed the regex as you told to do in the comment.

 

so how can you make it to work with google.com ... ? also i have this site http://www.vizual.co.in/enquiry_form.html

 

where the input boxes are available but their source is in this way

<INPUT name=name22 id=name22 value="" class="formfield">

 

there is no type="text" attribute . so can you change the regex ?

 

thanks for the advanced help.

 

Back from lunch.

That page you posted doesn't have any form tags, so regex can't match anything, instead  I've modified the regexp to match no type att. or no quote cases, it seems to work:

<pre><?php
$form=array();
preg_replace_callback('/<form[^>]+action=("|\')(.+?)(\\1).+?<\/form>/is','cb_form',$text);

function cb_form($mth){
global $form;
preg_match_all('/<input(?(?=[^>]+type=)(?=[^>]+type=(?(?="|\')("|\')(?:text|password)(?:\\1)|(?:text|password))))[^>]+name=(?(?="|\')("|\')(.+?)(?:\\2)|(\S+))/is',$mth[0],$names);
$form[$mth[2]]=($names[2][0]!='')?$names[3]:$names[4];
}
print_r($form);
?></pre>

[d.shankar]

Thanks a lot buddy..

 

your array declarations are really tricky  ??? How can i access them one by one ?

 

 

[d.shankar]

Regex is really making me mad. Its not matching for all sites.

Do you guys easy with DOM ?

Here is a small code that returns form names or actions of anywebsites without any restrictions.

 

<?php
$target_url = "www.dnschart.com";
$ch = curl_init();
curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
curl_setopt($ch, CURLOPT_URL,$target_url);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_AUTOREFERER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$html= curl_exec($ch);
$dom = new DOMDocument();
@$dom->loadHTML($html);
$hrefs = $dom->getElementsByTagName('form');
foreach($hrefs as $href)
{
echo $href->getAttribute('action');
echo "<br>";
} 
?>

 

This code works fine but i am unable to access the child nodes ( i.e. type=text variables )

 

Is it possible to proceed with this code and putting this to work ?

[d.shankar]

any ideas and suggestions ???

[effigy]

Try using childNodes like this example.

[d.shankar]

I tried my best but i still cant figure out.

I am unable to fetch the input variables of the form respectively.

 

 

<?php

$target_url = "www.dnschart.com";

$ch = curl_init();
curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
curl_setopt($ch, CURLOPT_URL,$target_url);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_AUTOREFERER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$html= curl_exec($ch);

$dom = new DOMDocument();
@$dom->loadHTML($html);

$params = $dom->getElementsByTagName('form');

foreach ($params as $param) {
       echo $param -> getAttribute('name').'<br>';
       if($param->hasChildNodes())
       {
       echo "true";
       echo "<br>";
       $children = $param->childNodes;
       echo $children->getElementsByTagName('input').'<br>';
       foreach($children as $child)
       {
	       echo $child->getAttribute('name');
       }
      }
else
{
echo "false";
echo "<br>";
}
?>

 

???

[shoaiblatif]

Dear shankar;

 

 

I have solved your problem. I could show ur desire results.

 

Contact with me at this id [email protected].

I will be available to u frm 4:00p.m to 10:00 p.m (+5 GMT)

 

Regards,

 

Shoaib Latif