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POSending files like a form with ocaml-curl
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  1. POSending files like a form with ocaml-curl
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    copied!<p>I'm working on a little tool to upload my school work on the dedicated server my school provides, and I've decided to use <code>ocaml</code> and <code>ocurl</code>, an <code>ocaml</code> wrapper for <code>libcurl</code>. I'm able to retrieve do everything I want from the command line (using curl), but can't upload the file with ocurl.</p> <p>I think this is because the server page expects <code>multipart/form-data</code> as then content type. After reading the <code>libcurl</code> documentation I used <code>curl_formadd()</code> (and that's what I do from command line), but ocurl is not able to do that (I did not find anything like this in <code>curl.ml</code>)</p> <p>Working curl command line:</p> <pre><code>curl -v "myhost/upload2.php" --form "fichier1= @file.tar.gz" --form "MAX_FILE_SIZE=1000000" -b cookie </code></pre> <p>Response</p> <pre><code>&gt; POST /upload2.php HTTP/1.1 &gt; User-Agent: curl/7.32.0 &gt; Host: myhost &gt; Accept: */* &gt; Cookie: PHPSESSID=4qbihrkhode23902q1v988a114; cookie_test=1 &gt; Content-Length: 10563 &gt; Expect: 100-continue &gt; Content-Type: multipart/form-data; boundary=------------------------53aa2e4a08d1f7c0 &gt; &lt; HTTP/1.1 100 Continue &lt; HTTP/1.1 200 OK &lt; Date: Wed, 23 Oct 2013 17:34:21 GMT * Server Apache/2.2.16 (Debian) is not blacklisted &lt; Server: Apache/2.2.16 (Debian) &lt; X-Powered-By: PHP/5.3.3-7+squeeze17 &lt; Expires: Thu, 19 Nov 1981 08:52:00 GMT &lt; Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 &lt; Pragma: no-cache &lt; Vary: Accept-Encoding &lt; Content-Length: 2265 &lt; Content-Type: text/html &lt; </code></pre> <p>My closest non-working <code>ocaml</code> code</p> <pre><code>let fetch connection url = Printf.printf "Retriving %s ...\n" (url); flush stdout; Curl.set_url connection url; Curl.perform connection; Curl.set_post connection false in Curl.global_init Curl.CURLINIT_GLOBALALL; let connection = Curl.init() in Curl.set_verbose connection true; let curl_file_option = Curl.CURLFORM_FILECONTENT("fichier1","file.tar.gz",Curl.CONTENTTYPE "application/x-tar") in Curl.set_maxfilesize connection (Int32.of_int 1000000); Curl.set_httppost connection [curl_file_option]; fetch connection (baseURL^"upload2.php"); ;; </code></pre> <p>Which does absolutely nothing but using 100% CPU</p> <p>Finally, the question is : could you help me building my own formdata function ?</p>
 

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