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POjquery / soap request to local libcsoap/nanohttpd server -> Origin * is not allowed by Access-Control-Allow-Origin
 

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  1. POjquery / soap request to local libcsoap/nanohttpd server -> Origin * is not allowed by Access-Control-Allow-Origin
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    <p>I wrote a c-program which needs an interface for other programs, also for a webste. So i just choosed libcsoap to create a soap interface. The libcsoap-library is based on nanohttpd, a small http server written in c.</p> <p>I just implemented a few test functions, e.g. a <code>ping</code>-function which just returns an xml without any interesting data.</p> <p>I can call these functions with the help of libcsoap without any problems. But now, i try to call the soap interface from a dummy website. I just created a html file with a textarea and a button to send the textarea's content as raw xml.</p> <p>Then i try to put the answer into a <code>div</code> next to the <code>send</code>-button. This html-file is on my local machine <code>xubuntu-02</code> on an apache2 webserver.</p> <p>Here is the code:</p> <pre><code>&lt;HTML xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"&gt; &lt;HEAD&gt; &lt;TITLE&gt;Debug Post&lt;/TITLE&gt; &lt;script src="http://code.jquery.com/jquery-1.9.1.min.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; function submit_data() { var src = document.getElementById('data'); $.support.cors = true; $.ajax({ url: 'http://xubuntu-02:10000/tbs_blabla', type: 'POST', async: false, timeout: 30000, data: src.value, success: function(data) { alert('OK!'); /*document.getElementById('data').value = data;*/ }, fail: function() { alert('failed'); } }); } &lt;/script&gt; &lt;/HEAD&gt; &lt;BODY&gt; &lt;H1&gt;Debug Post&lt;/H1&gt; &lt;textarea id="data" rows="10" cols="80"&gt; &lt;SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance" xmlns:xsd="http://www.w3.org/1999/XMLSchema" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"&gt; &lt;SOAP-ENV:Header/&gt; &lt;SOAP-ENV:Body&gt; &lt;m:ping xmlns:m="urn:tbs_blabla"&gt; &lt;m:name xsi:type="xsd:string"&gt;Jonny B. Good&lt;/m:name&gt;&lt;/m:ping&gt; &lt;/SOAP-ENV:Body&gt;&lt;/SOAP-ENV:Envelope&gt; &lt;/textarea&gt; &lt;p&gt; &lt;input type="button" value="Submit" onclick="submit_data();return false;" /&gt; &lt;/p&gt; &lt;p&gt; &lt;div id="res"&gt; &lt;/div&gt; &lt;/p&gt; &lt;/BODY&gt; &lt;/HTML&gt; </code></pre> <p>I use chromium to debug the code. There is can observe all http requests, there i always get the http status 200 for the answer. So... the request should be complete? If i check the log on the server side (libcsoap-log) i also can see that the xml was processed, a new xml was created and the new xml was sent.</p> <p>I also checked the request with wireshark, there it seems to be ok:</p> <pre><code>POST /tbs_blabla HTTP/1.1 Host: xubuntu-02:10000 Connection: keep-alive Content-Length: 425 Accept: */* Origin: http://xubuntu-02 User-Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.56 Safari/537.17 Content-Type: application/x-www-form-urlencoded; charset=UTF-8 Referer: http://xubuntu-02/test.html Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 DNT: 1 &lt;SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance" xmlns:xsd="http://www.w3.org/1999/XMLSchema" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"&gt; &lt;SOAP-ENV:Header/&gt; &lt;SOAP-ENV:Body&gt; &lt;m:ping xmlns:m="urn:tbs_blabla"&gt; &lt;m:name xsi:type="xsd:string"&gt;Jonny B. Good&lt;/m:name&gt;&lt;/m:ping&gt; &lt;/SOAP-ENV:Body&gt;&lt;/SOAP-ENV:Envelope&gt; HTTP/1.1 200 OK Date: Sun, 10 Mar 2013 13:28:33 GMT Server: Nano HTTPD library Content-Type: text/xml Content-Length: 417 &lt;SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"&gt; &lt;SOAP-ENV:Header/&gt; &lt;SOAP-ENV:Body&gt; &lt;m:pingResponse xmlns:m="urn:tbs_blabla"&gt; &lt;m:ok xsi:type="xsd:boolean"&gt;true&lt;/m:ok&gt;&lt;/m:pingResponse&gt; &lt;/SOAP-ENV:Body&gt;&lt;/SOAP-ENV:Envelope&gt; </code></pre> <p>So, everything looks good, but in chromium in the javascript console i always get <code>XMLHttpRequest cannot load http://xubuntu-02:10000/tbs_blabla. Origin http://xubuntu-02 is not allowed by Access-Control-Allow-Origin.</code>.</p> <p>Always i send a request just nothing happens on the webpage.</p> <p>I have no idea why. I tested many things. E.g. start chromium with <code>chromium-browser --disable-web-security</code> or with <code>chromium-browser --allow-file-access-from-files</code>.</p> <p>I checked many stackoverflow-posts:</p> <p><a href="https://stackoverflow.com/questions/5396527/error-origin-null-is-not-allowed-by-access-control-allow-origin-when-loading">Error: &quot;Origin null is not allowed by Access-Control-Allow-Origin&quot; when loading an XML file with JQuery&#39;s ajax method</a></p> <p><a href="https://stackoverflow.com/questions/3595515/xmlhttprequest-error-origin-null-is-not-allowed-by-access-control-allow-origin">XmlHttpRequest error: Origin null is not allowed by Access-Control-Allow-Origin</a></p> <p><a href="https://stackoverflow.com/questions/8456538/origin-null-is-not-allowed-by-access-control-allow-origin">Origin null is not allowed by Access-Control-Allow-Origin</a></p> <p><a href="https://stackoverflow.com/questions/7752527/ajax-origin-null-is-not-allowed">$.ajax(): Origin null is not allowed</a></p> <p><a href="https://stackoverflow.com/questions/6114436/access-control-allow-origin-error-sending-a-jquery-post-to-google-apis">Access-Control-Allow-Origin error sending a jQuery Post to Google API&#39;s</a></p> <p>...</p> <p>Maybe someone can see what i am doing wrong?</p> <p>Thank you for the help.</p> <p>Best regards</p> <p>--edit--</p> <p>I just wrote a small 'proxy' in php. It just receives the xml sends it to localhost:10000 and then it returns the xml-answer. now i use the post-field data for the xml.</p> <p>Here is the php-file:</p> <pre><code>&lt;?php echo shell_exec('curl http://localhost:10000/tbs_lgrow -m60 -d' . escapeshellarg($_POST['data'])); ?&gt; </code></pre> <p>Now it works with this little hack.</p> <p>Thanks</p> <p>Best regards</p>
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    1. COyou should specify somewhere on http://xubuntu-02:10000/tbs_lgrow or a config file (sorry I never worked with nanohttpd) the access origin policy. E.g.: in php this would be to add header('Access-Control-Allow-Origin: *'); to the file (tbs_lgrow)
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      1. POjquery / soap request to local libcsoap/nanohttpd server -> Origin * is not allowed by Access-Control-Allow-Origin
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    2. COUps, sry i forgot to change everywhere `tbs_lgrow` (original name) to `tbs_blabla`. I did this now. I try to change this in `nanohttp`.
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      1. POjquery / soap request to local libcsoap/nanohttpd server -> Origin * is not allowed by Access-Control-Allow-Origin
      1. USKevin Meier
    3. COHm, libcsoap doesn't seem to give the possibility to add /edit the headers for the http response. So i think i have no chance to do this without remcompiling the libcsoap package and include a line to add this header. :-/ So there isn't another way to do this? Maybe a browser config or something like that?
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      1. POjquery / soap request to local libcsoap/nanohttpd server -> Origin * is not allowed by Access-Control-Allow-Origin
      1. USKevin Meier
 

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