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Re: Web portal CORS/preflight problem

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Hi Hannan,

I am working on a fix for this. Any chance you can upgrade from 2.17?

On Sat, Aug 29, 2015 at 4:59 AM, Hannan Khan <hannank@xxxxxxxxx> wrote:

> Dear Jan
>
> I think cross domain problem is solved but more problem arise. I added the
> jquery js script line but there is no chart. I think as i use
> https://code.jquery.com/jquery-2.1.4.min.js' the calling of chart might
> changed. the source I used is as :
>
> <head>
> <title>DHIS2 Web Portal</title>
>
> <link href="style.css" rel="stylesheet" type="text/css" />
> <link href="//fonts.googleapis.com/css?family=Lato:400,700"
> rel="stylesheet" type="text/css" />
>
> <link rel="stylesheet" href="//
> dhis2-cdn.org/v217/ext/resources/css/ext-plugin-gray.css" />
> <script src="//dhis2-cdn.org/v217/ext/ext-all.js"></script>
> <script src="//dhis2-cdn.org/v217/plugin/chart.js"></script>
> <script src="https://code.jquery.com/jquery-2.1.4.min.js";></script>
>
> <!-- Custom CSS -->
>
> <style type="text/css">
> li {
>     float: left;
> }
>
> .chart {
>     border: 1px solid #ddd;
>     margin: 10px;
> }
> .chart.wide {
>     width: 800px;
>     height: 450px;
> }
> .chart.tall {
>     width: 600px;
>     height: 920px;
> }
> </style>
>
> <!-- Login and initialize charts -->
>
> <script>
> var base = 'http://localhost:8080/dhismohfw19/';
>
> $.ready(function() {
>   $.Ajax.request({
>     crossDomain: true,
>     url: base + "dhis-web-commons-security/login.action?authOnly=true",
>     method: 'POST',
> params: { j_username: "view", j_password: "DGHS1234" },
>     success: setLinks
>   });
> });
>
> function setLinks() {
>   DV.plugin.getChart({ url: base, el: 'chartA1', id: 'LjfRM4pSC0h' });
>
>   DV.plugin.getChart({ url: base, el: 'chartA2', id: 'aR9w2QFpfW7' });
>
>   DV.plugin.getChart({ url: base, el: 'chartA3', id: 'Pck5tyxraa3' });
> }
> </script>
>
> </head>
>
> <body>
>
> <header>
>   <h1>Data Visualizer Chart Plugin</h1>
> </header>
>
> <menu>
>
> <p>This page illustrates the use of the Data Visualizer plugin which can
> be used to embed dynamic ExtJS charts into a Web page. You can embed charts
> pointing to pre-defined charts in DHIS, or select custom indicators,
> periods and org units to create dynamic charts. View the source of
> this page to see how it is done.</p>
> </menu>
>
> <section>
>
> <h3>Predefined charts</h3>
>
> <ul>
>   <li><div id="chartA1" class="chart tall"></div></li>
>   <li><div id="chartA2" class="chart wide"></div></li>
>   <li><div id="chartA3" class="chart wide"></div></li>
> </ul>
>
> <p style="clear:both"></p>
>
> </section>
>
> </body>
> </html>
>
>
> On Thu, Aug 27, 2015 at 4:24 PM, Jan Henrik Øverland <
> janhenrik.overland@xxxxxxxxx> wrote:
>
>> You need to do this part
>>
>> Ext.onReady( function() {
>>   Ext.Ajax.request({
>>     crossDomain: true,
>>     url: base + "dhis-web-commons-security/login.action?authOnly=true",
>>     method: 'POST'
>>  ....
>>
>> with jquery instead of Ext.
>>
>> See the code that Morten posted.
>>
>> On Thu, Aug 27, 2015 at 12:19 PM, Hannan Khan <hannank@xxxxxxxxx> wrote:
>>
>>> Thanks Jan.
>>>
>>> I added <script src="//code.jquery.com/jquery-2.1.4.min.js
>>> <http://code.jquery.com/jquery-2.1.4.min.js>"></script> in the <head>
>>> but still I get the error. What did I do wrong?
>>>
>>> Regards
>>>
>>> Hannan
>>>
>>> On Thu, Aug 27, 2015 at 2:49 PM, Jan Henrik Øverland <
>>> janhenrik.overland@xxxxxxxxx> wrote:
>>>
>>>> Hi Hannan,
>>>>
>>>> I have done some testing and it seems the bundled Ext version is
>>>> getting old. CORS is not working well with it.
>>>>
>>>> We need to look at this, but for now just include
>>>> https://code.jquery.com/jquery-2.1.4.min.js (minified, only 84k) and
>>>> do the authentication with jquery.
>>>>
>>>> The good thing about CORS is that you can simply do a normal ajax
>>>> request and the browser will take care of the rest.
>>>>
>>>> On Thu, Aug 27, 2015 at 10:37 AM, Hannan Khan <hannank@xxxxxxxxx>
>>>> wrote:
>>>>
>>>>> Dear Alex
>>>>>
>>>>> Thank you for sharing the resources. but the problem still persists. i
>>>>> write as following:
>>>>>
>>>>> Ext.onReady( function() {
>>>>>   Ext.Ajax.request({
>>>>>     crossDomain: true,
>>>>>     url: base + "dhis-web-commons-security/login.action?authOnly=true",
>>>>>     method: 'POST',
>>>>>
>>>>> Please check.
>>>>>
>>>>> Regards
>>>>>
>>>>> Hannan
>>>>>
>>>>> On Thu, Aug 27, 2015 at 1:00 PM, Alex Tumwesigye <
>>>>> atumwesigye@xxxxxxxxx> wrote:
>>>>>
>>>>>> Dear Khan,
>>>>>>
>>>>>> Look at this
>>>>>> http://api.jquery.com/jquery.ajax/
>>>>>> Read about crossDomain, by default it set to false so you may need to
>>>>>> set it to true.
>>>>>>
>>>>>> Ideally, in your ajax request, add crossDomain:true
>>>>>>
>>>>>> Alex
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Thu, Aug 27, 2015 at 9:53 AM, Mark Polak <markpo@xxxxxxxxxx>
>>>>>> wrote:
>>>>>>
>>>>>>> Hello Hanna,
>>>>>>>
>>>>>>> Did you add http:// (or https:// if you use a secure line) in front
>>>>>>> of the IP address?
>>>>>>>
>>>>>>> On the demo instance this is a bit confusing as the examples do not
>>>>>>> show that but it is required for it to work correctly.
>>>>>>>
>>>>>>> Regards,
>>>>>>>
>>>>>>> Mark
>>>>>>> ________________________________________
>>>>>>> From: Dhis2-devs [dhis2-devs-bounces+markpo=
>>>>>>> ifi.uio.no@xxxxxxxxxxxxxxxxxxx] on behalf of Hannan Khan [
>>>>>>> hannank@xxxxxxxxx]
>>>>>>> Sent: 27 August 2015 08:29
>>>>>>> To: DHIS 2 developers
>>>>>>> Subject: [Dhis2-devs] Web portal CORS/preflight problem
>>>>>>>
>>>>>>> Dear Experts
>>>>>>>
>>>>>>> I am facing problem to creating Web Portal, facing problem CORS.
>>>>>>> First I try portal from 103.247.238.68 not working and then put this
>>>>>>> address in the white list of the dhis2 server at 103.247.238.68:8080
>>>>>>> <http://103.247.238.68:8080>. But but still having the same problem
>>>>>>> the error message is 'which is disallowed for cross-origin requests that
>>>>>>> require preflight'.
>>>>>>>
>>>>>>> Now how I resolve this? The script is similar as on the developer
>>>>>>> guide, page 49.
>>>>>>>
>>>>>>> Please advice.
>>>>>>>
>>>>>>> Regards
>>>>>>>
>>>>>>> Hannan
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Mailing list: https://launchpad.net/~dhis2-devs
>>>>>>> Post to     : dhis2-devs@xxxxxxxxxxxxxxxxxxx
>>>>>>> Unsubscribe : https://launchpad.net/~dhis2-devs
>>>>>>> More help   : https://help.launchpad.net/ListHelp
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Alex Tumwesigye
>>>>>>
>>>>>> Technical Advisor - DHIS2 (Consultant),
>>>>>> Ministry of Health/AFENET
>>>>>> Kampala
>>>>>> Uganda
>>>>>>
>>>>>> IT Consultant - BarefootPower Uganda Ltd, SmartSolar, Kenya
>>>>>>
>>>>>> IT Specialist (Servers, Networks and Security, Health Information
>>>>>> Systems - DHIS2 ) & Solar Consultant
>>>>>>
>>>>>> +256 774149 775, + 256 759 800161
>>>>>>
>>>>>> "I don't want to be anything other than what I have been - one tree
>>>>>> hill "
>>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Mailing list: https://launchpad.net/~dhis2-devs
>>>>> Post to     : dhis2-devs@xxxxxxxxxxxxxxxxxxx
>>>>> Unsubscribe : https://launchpad.net/~dhis2-devs
>>>>> More help   : https://help.launchpad.net/ListHelp
>>>>>
>>>>>
>>>>
>>>
>>
>

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