dhis2-devs team mailing list archive

[Lars Helge Øverland <larshelge@xxxxxxxxx>]

Hi, we have experienced some issues with non-ascii characters in ajax
requests in the sense that the request parameters are not decoded properly
on the server side, with different behavior over browsers and servlet
containers. This is a potential source for trouble since the
content-encoding/type header fields are not propertly respected in either
browsers or servers, also because javascript uses UTF-8 as default encoding,
HTTP uses ISO-8859 while java uses a modified UTF-8 internally. After some
digging it turned out that the get and getJSON jQuery's ajax functions do
not send any content-type header field at all, and that the post function
sets it to 'application/x-www-form-urlencoded'. Now the only reliable way I
found to transmit non-ascii characters as query parameters was to send all
requests as post and set the content-type header to
'application/x-www-form-urlencoded;charset=utf-8'. Both tomcat and jetty
will then decode eg. norwegian and vietnamese properly. I have added some
convenience methods for working more easily with this here.



On Mon, May 23, 2011 at 7:45 PM, <noreply@xxxxxxxxxxxxx> wrote:

> ------------------------------------------------------------
> revno: 3712
> committer: Lars Helge Overland <larshelge@xxxxxxxxx>
> branch nick: dhis2
> timestamp: Mon 2011-05-23 19:44:10 +0200
> message:
>  Added ajax utility jquery extension
> added:
>
>  dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/javascripts/jQuery/jquery.utils.js
> modified:
>  dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/main.vm
>
>
> --
> lp:dhis2
> https://code.launchpad.net/~dhis2-devs-core/dhis2/trunk
>
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>
> === added file
> 'dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/javascripts/jQuery/jquery.utils.js'
> ---
> dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/javascripts/jQuery/jquery.utils.js
>      1970-01-01 00:00:00 +0000
> +++
> dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/javascripts/jQuery/jquery.utils.js
>      2011-05-23 17:44:10 +0000
> @@ -0,0 +1,10 @@
> +jQuery.extend( {
> +
> +       postJSON: function( url, data, success ) {
> +               $.ajax( { url:url, data:data, success:success, type:'post',
> dataType:'json',
> contentType:'application/x-www-form-urlencoded;charset=utf-8' } );
> +       },
> +
> +       postUTF8: function( url, data, success ) {
> +               $.ajax( { url:url, data:data, success:success, type:'post',
> contentType:'application/x-www-form-urlencoded;charset=utf-8' } );
> +       }
> +} );
> \ No newline at end of file
>
> === modified file
> 'dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/main.vm'
> --- dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/main.vm
>  2011-05-19 11:57:47 +0000
> +++ dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/main.vm
>  2011-05-23 17:44:10 +0000
> @@ -26,6 +26,7 @@
>        <script type="text/javascript"
> src="../dhis-web-commons/javascripts/jQuery/jquery.tablesorter.min.js"></script>
>        <script type="text/javascript"
> src="../dhis-web-commons/javascripts/jQuery/jquery.upload-1.0.2.min.js"></script>
>        <script type="text/javascript"
> src="../dhis-web-commons/javascripts/jQuery/jquery.dhisPaging.js"></script>
> +       <script type="text/javascript"
> src="../dhis-web-commons/javascripts/jQuery/jquery.utils.js"></script>
>        <script type="text/javascript"
> src="../dhis-web-commons/javascripts/jQuery/ui/jquery-ui-1.8.12.custom.min.js"></script>
>        <script type="text/javascript"
> src="../dhis-web-commons/javascripts/jQuery/ui/jquery.block.js"></script>
>        <script type="text/javascript"
> src="../dhis-web-commons/javascripts/jQuery/ui/ui.thickbox.min.js"></script>
>
>
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