I'm working on a little project for school. I need to convert a PHP-cUrl file into C#.
Somehow I can't solve it, I used google but didn't help. I used libcurl.NET binding to solve it but no chance for me.
Now I would like to ask you if you could help me with my problem. I need to convert this Code:
<?php
class Curl {
const METHOD_GET = 'GET';
const METHOD_POST = 'POST';
const METHOD_PUT = 'PUT';
const METHOD_DELETE = 'DELETE';
const CURL_TIMEOUT_IN_SECS = 15;
public static $successFullHttpCodes = array(200, 201, 204);
public function call($url, $urlParams = array(), $postParams = null, $method = self::METHOD_GET, $headers = array()) {
$finalUrl = $url . $this->getUrlParameterString($urlParams);
$data = $this->makeCurlCall($finalUrl, $postParams, $method, $headers);
return $data;
}
/**
* Creates a curl call for the given url, automatically validates the return value for errors.
* If an error has been found a new Exception will be thrown.
*
* @param string $url
* @param array $postParams Parameters for Post and Put-Requests
* @param string $method HTTP-Method (GET, PUT, POST, DELETE)
* @param string $headers HTTP-Headers
* @throws Exception
*/
private function makeCurlCall($url, $postParams = array(), $method = self::METHOD_GET, $headers = array()) {
$curl = curl_init();
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($curl, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)");
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_VERBOSE, 0);
curl_setopt($curl, CURLOPT_TIMEOUT, self::CURL_TIMEOUT_IN_SECS);
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $method);
if ($headers) {
$usableHeaders = array();
foreach ($headers as $name => $value) {
$usableHeaders[] = sprintf('%s: %s', $name, $value);
}
curl_setopt($curl, CURLOPT_HTTPHEADER, $usableHeaders);
}
if ($postParams) {
curl_setopt($curl, CURLOPT_POSTFIELDS, $postParams);
}
$data = curl_exec($curl);
$this->checkForError($curl, $data);
return $data;
}
/**
* Checks for any errors in the api response.
* If an error has been found a new Exception will be thrown.
*
* @param string $data the resulting data
* @throws Exception
*/
private function checkForError($curl, $data) {
$curlInfo = curl_getinfo($curl);
if (isset($curlInfo['http_code']) && !in_array($curlInfo['http_code'], self::$successFullHttpCodes)) {
throw new Exception($curlInfo['http_code'] ? $data : 'could not get a response from the service', $curlInfo['http_code'] ? $curlInfo['http_code'] : 500);
}
}
/**
* Builds a valid http query
*
* @param array $urlParams
* @return string
*/
private function getUrlParameterString(array $urlParams) {
if (!$urlParams) {
return "";
}
return "?" . http_build_query($urlParams);
}
}
?>
Need to convert this file 1to1 to use it in my Project.
Right now I got this C# code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SeasideResearch.LibCurlNet;
namespace ConsoleApplication1
{
class CurlCall
{
const String method_get = "GET";
const String method_post = "POST";
const String method_put = "PUT";
const String method_delete = "DELETE";
const int curl_timeout_in_secs = 15;
public static int[] successFullHttpCodes = { 200, 201, 204 };
public String call(String url, String[] urlParams, String postParams, String method, String[] header)
{
String data = "";
String finalUrl = "";
finalUrl = url + this.getUrlParameterString(urlParams);
return data;
}
private String makeCurlCall(String url, String[] postParams, String method, String[] header)
{
try
{
Curl.GlobalInit((int)CURLinitFlag.CURL_GLOBAL_ALL);
Easy easy = new Easy();
Easy.WriteFunction wf = OnWriteData;
easy.SetOpt(CURLoption.CURLOPT_SSL_VERIFYPEER, 0);
easy.SetOpt(CURLoption.CURLOPT_SSL_VERIFYHOST, 2);
easy.SetOpt(CURLoption.CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)");
easy.SetOpt(CURLoption.CURLOPT_WRITEFUNCTION, wf);
easy.SetOpt(CURLoption.CURLOPT_URL, "http://google.com/index.html");
easy.SetOpt(CURLoption.CURLOPT_VERBOSE, 0);
easy.SetOpt(CURLoption.CURLOPT_TIMEOUT, curl_timeout_in_secs);
easy.SetOpt(CURLoption.CURLOPT_CUSTOMREQUEST, method);
if(header != null)
{
String[] usableHeaders;
for(int i = 0; i <= header.Length; i++)
{
usableHeaders[i] = string.Format("%s: %s", header[i], i);
}
easy.SetOpt(CURLoption.CURLOPT_HTTPHEADER, usableHeaders);
}
if (postParams != null)
{
easy.SetOpt(CURLoption.CURLOPT_POSTFIELDS, postParams);
}
easy.Perform();
easy.Cleanup();
Curl.GlobalCleanup();
}
catch (Exception ex)
{
Console.WriteLine(ex);
Console.ReadKey();
}
String data;
data = "0";
this.checkForError("", data);
return data;
}
private void checkForError(String curl, String data)
{
String curlInfo;
Curl.GlobalInit((int)CURLinitFlag.CURL_GLOBAL_ALL);
Easy easy = new Easy();
curlinfo = easy.GetInfo(CURLINFO, curl);
if()
{
}
}
private String getUrlParameterString(String[] urlParams)
{
if(urlParams != null)
{
return "";
}
return "?";
}
public static Int32 OnWriteData(Byte[] buf, Int32 size, Int32 nmemb,
Object extraData)
{
Console.Write(System.Text.Encoding.UTF8.GetString(buf));
Console.ReadKey();
return size * nmemb;
}
}
}
I couldn't convert this part, I don't understand the self:: key.
$method = self::METHOD_GET
Also don't know if I converted this parts right.
if ($headers) {
if ($postParams) {
On this code I get an error.
$usableHeaders[] = sprintf('%s: %s', $name, $value);
Error: "Use of unassigned local variable 'usableHeaders'
On the checkForError function I didn't understand what's the $curl variable... Also didn't know hot to use getinfo $curlInfo = curl_getinfo($curl);
Here I didn't found sometihng equal to this part
http_build_query($urlParams);
Hope you guys can help me out.
Btw excuse my english.
