TCP connection reset by peer - Salesforce - PHP - php

Question

Suddenly we start getting “TCP connection reset by peer” response from “Salesforce” after sending lead information using web services.
Technical Stack used at our end:
OS: Redhat Linux (RHEL)
Web Server: APACHE
Web Scripting Language: PHP
Used CURL for sending the details.
Code snippet for sending lead generation requested to Salesforce is ….
/*****************************************************************************************************/
/* Purpose : Sending request to sales-force for lead generation
/* Inputs : $pStrPostArr :: Post data array.
/* Returns : None.
/* Created By : Jaiswar Vipin Kumar R.
/*****************************************************************************************************/
function send($pStrPostArr = array()){
/* if post data is empty then do needful */
if (empty($pStrPostArr)){
/* return status */
return false;
}
/* set POST variables */
$strDestiantionURL = 'https://www.salesforce.com/servlet/servlet.WebToLead?encoding=UTF-8';
/* removed used index */
unset($pStrPostArr['desitnationURL']);
/* if destination URL is not set then do needful */
if (empty($strDestiantionURL)){
/* return status */
return false;
}
/* variable initialization */
$strFields = '';
/* url-ify the data for the POST */
foreach($pStrPostArr as $strKey=>$strValue) {
if($strFields == ''){
$strFields .= $strKey.'='.$strValue;
}else{
$strFields .= '&'.$strKey.'='.$strValue;
}
}
// rtrim($strFields,'&');
if(isset($_COOKIE['debug'])){
//print_r($pStrPostArr);
echo $strFields;exit;
}
/* open connection */
$ch = curl_init($strDestiantionURL);
/* set the url, number of POST vars, POST data */
curl_setopt($ch,CURLOPT_URL,$strDestiantionURL);
curl_setopt($ch,CURLOPT_POST,count($pStrPostArr));
curl_setopt($ch,CURLOPT_POSTFIELDS,$strFields);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch,CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1_2);
/* execute post */
$this->_strReponse = curl_exec($ch);
/* Request Body */
$this->_strRequestBody = curl_getinfo($ch);
if($this->_strReponse === FALSE){
$this->_strError = curl_error($ch);
}
/* close connection */
curl_close($ch);
}
And Send Lead Information DataSet is :
Array
(
[desitnationURL] => https://www.salesforce.com/servlet/servlet.WebToLead?encoding=UTF-8
[first_name] => Jaiswar
[last_name] => Vipin+Kumar+R
[company] => PocketApp
[job_title__c] =>
[country_c__c] =>
[appdetail] => app development & designing
[email] => vipin.jaiswar%40pocketapp.co.uk
[phone] => %2B919773596947
[Lead_Budget__c] => Undisclosed
[description] => Fill+out+the+form+below+with+your+requirments+and+we+will+get+back+to+you+as+soon+as+possible.+Alternatively%2C+send+an+email+to+sales%40pocketapp.co.uk+or+give+us+a+call+on+%2B44+20+7183+4388
[oid] => XXXXXXXXXXXXXXX
[sfga] => XXXXXXXXXXXXXXX
[retURL] => https://www.pocketapp.co.uk/thank-you/
[lead_source] => Web
[source__c] => https://www.semrush.com/siteaudit/campaign/472189/review/
[medium__c] => -
[campaign__c] => -
[term__c] => -
[content__c] =>
[Visitor_ID__c] => -
[gclid__c] => -
[Count_of_Sessions__c] => 1
[Count_of_Pageviews__c] => 1
[00ND0000006RIpG] =>
[00ND0000006RHJY] =>
[00ND0000006RHJd] =>
[00ND0000006RHJi] =>
[00ND0000006RHJs] =>
[00ND0000006RHJn] =>
[00ND00000064Guy] =>
[00ND00000064Gv3] =>
)
Can you please assist us, what changes we need to make our end to make this start working as it was?

Answer 1

Salesforce moved the web2lead endpoint, you need to change your destination URL to use webto.salesforce.com instead of www.salesforce.com
see this KB article.